Bump for release

.github/workflows/build-test.yml

@@ -1,33 +0,0 @@
-name: "Build & Test"
-
-on:
-  push:
-    branches-ignore:
-      - 'master'
-      - 'release/**'
-  pull_request:
-
-jobs:
-  build:
-    runs-on: ubuntu-20.04
-    steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-go@v2
-        with:
-          go-version: '^1.15'
-      
-      - name: Build
-        run: GOOS=linux GOARCH=amd64 go build -ldflags="-s -w" -ldflags "-X github.com/pterodactyl/wings/system.Version=dev-${GIT_COMMIT:0:7}" -o build/wings_linux_amd64 -v wings.go
-      
-      - name: Test
-        run: go test ./...
-      
-      - name: Compress binary and make it executable
-        if: ${{ github.ref == 'refs/heads/develop' || github.event_name == 'pull_request' }}
-        run: upx build/wings_linux_amd64 && chmod +x build/wings_linux_amd64
-      
-      - uses: actions/upload-artifact@v2
-        if: ${{ github.ref == 'refs/heads/develop' || github.event_name == 'pull_request' }}
-        with:
-          name: wings_linux_amd64
-          path: build/wings_linux_amd64

.github/workflows/codeql-analysis.yml

@@ -1,35 +0,0 @@
-name: "Code scanning - action"
-
-on:
-  push:
-  pull_request:
-  schedule:
-    - cron: '0 21 * * 6'
-
-jobs:
-  CodeQL-Build:
-
-    runs-on: ubuntu-latest
-
-    steps:
-    - name: Checkout repository
-      uses: actions/checkout@v2
-      with:
-        # We must fetch at least the immediate parents so that if this is
-        # a pull request then we can checkout the head.
-        fetch-depth: 2
-
-    # If this run was triggered by a pull request event, then checkout
-    # the head of the pull request instead of the merge commit.
-    - run: git checkout HEAD^2
-      if: ${{ github.event_name == 'pull_request' }}
-      
-    # Initializes the CodeQL tools for scanning.
-    - name: Initialize CodeQL
-      uses: github/codeql-action/init@v1
-      # Override language selection by uncommenting this and choosing your languages
-      with:
-        languages: go
-
-    - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v1

.github/workflows/release.yml

@@ -1,87 +0,0 @@
-name: "Release"
-
-on:
-  push:
-    tags:
-      - 'v*'
-
-jobs:
-  release:
-    runs-on: ubuntu-20.04
-    steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-go@v2
-        with:
-          go-version: '^1.15'
-      
-      - name: Build
-        env:
-          REF: ${{ github.ref }}
-        run: GOOS=linux GOARCH=amd64 go build -ldflags="-s -w" -ldflags "-X github.com/pterodactyl/wings/system.Version=${REF:11}" -o build/wings_linux_amd64 -v wings.go
-      
-      - name: Test
-        run: go test ./...
-      
-      - name: Compress binary and make it executable
-        run: upx --brute build/wings_linux_amd64 && chmod +x build/wings_linux_amd64
-
-      - name: Extract changelog
-        env:
-          REF: ${{ github.ref }}
-        run: |
-          sed -n "/^## ${REF:10}/,/^## /{/^## /b;p}" CHANGELOG.md > ./RELEASE_CHANGELOG
-          echo ::set-output name=version_name::`sed -nr "s/^## (${REF:10} .*)$/\1/p" CHANGELOG.md`
-
-      - name: Create checksum and add to changelog
-        run: |
-          SUM=`cd build && sha256sum wings_linux_amd64`
-          echo -e "\n#### SHA256 Checksum\n\n\`\`\`\n$SUM\n\`\`\`\n" >> ./RELEASE_CHANGELOG
-          echo $SUM > checksum.txt
-
-      - name: Create release branch
-        env:
-          REF: ${{ github.ref }}
-        run: |
-          BRANCH=release/${REF:10}
-          git config --local user.email "ci@pterodactyl.io"
-          git config --local user.name "Pterodactyl CI"
-          git checkout -b $BRANCH
-          git push -u origin $BRANCH
-          sed -i "s/	Version = \".*\"/	Version = \"${REF:11}\"/" system/const.go
-          git add system/const.go
-          git commit -m "bump version for release"
-          git push
-
-      - name: Create Release
-        id: create_release
-        uses: actions/create-release@v1
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        with:
-          tag_name: ${{ github.ref }}
-          release_name: ${{ steps.extract_changelog.outputs.version_name }}
-          body_path: ./RELEASE_CHANGELOG
-          draft: true
-          prerelease: ${{ contains(github.ref, 'beta') || contains(github.ref, 'alpha') }}
-      
-      - name: Upload binary
-        id: upload-release-binary 
-        uses: actions/upload-release-asset@v1
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        with:
-          upload_url: ${{ steps.create_release.outputs.upload_url }} 
-          asset_path: build/wings_linux_amd64
-          asset_name: wings_linux_amd64
-          asset_content_type: application/octet-stream
-      
-      - name: Upload checksum
-        id: upload-release-checksum 
-        uses: actions/upload-release-asset@v1
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        with:
-          upload_url: ${{ steps.create_release.outputs.upload_url }} 
-          asset_path: ./checksum.txt
-          asset_name: checksum.txt
-          asset_content_type: text/plain

.gitignore

@@ -45,5 +45,3 @@ test_*/
 # Keep all gitkeep files (This needs to stay at the bottom)
 !.gitkeep
 debug
-data/.states.json
-.DS_Store

.travis.yml

@@ -1,24 +1,22 @@
-os: linux
-dist: xenial
 language: go
 
 go:
-- 1.13.x
-
-go_import_path: "github.com/pterodactyl/wings"
+- 1.9.x
 
 services:
-- docker
+  - docker
 
 install:
 - mkdir -p $GOPATH/bin
 
 # Install used tools
+- go get github.com/golang/dep/cmd/dep
 - go get github.com/mitchellh/gox
 - go get github.com/haya14busa/goverage
 - go get github.com/schrej/godacov
 
-- go mod download
+# Install project dependencies with dep
+- dep ensure
 
 script:
 - make cross-build

CHANGELOG.md

@@ -1,23 +0,0 @@
-# Changelog
-
-## v1.0.0-beta.3
-### Fixed
-* Daemon will no longer crash if someone requests a websocket for a deleted server.
-* Temporary directories are now created properly if missing during the server installation process.
-
-### Added
-* Added support for using Amazon S3 as a backup location for archives.
-
-### Changed
-* Memory overhead for containers is now 5/10/15% higher than the passed limit to account for JVM heap and prevent crashing.
-
-## v1.0.0-alpha.2
-### Added
-* Ability to run an installation process for a server and notify the panel when completed.
-* Output from the installation process is now emitted over the server console for administrative users to view.
-
-### Fixed
-* Fixed bugs caused when unmarshaling data into a struct with default values.
-* Timezone is properly set in containers by using the `TZ=` environment variable rather than mounting timezone data into the filesystem.
-* Server data directly is now properly created when running the install process.
-* Time drift caused in the socket JWT is now handled in a better manner and less likely to unexpectedly error out.

Dockerfile

@@ -1,14 +0,0 @@
-# ----------------------------------
-# Pterodactyl Panel Dockerfile
-# ----------------------------------
-
-FROM golang:1.14-alpine
-COPY . /go/wings/
-WORKDIR /go/wings/
-RUN apk add --no-cache upx \
- && go build -ldflags="-s -w" \
- && upx --brute wings
-
-FROM alpine:latest
-COPY --from=0 /go/wings/wings /usr/bin/
-CMD ["wings","--config", "/var/lib/pterodactyl/config.yml"]

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2019 Dane Everitt <dane@daneeveritt.com>
+Copyright (c) 2017 Jakob Schrettenbrunner <dev@schrej.net>
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

Makefile

@@ -1,12 +1,28 @@
-build:
-	GOOS=linux GOARCH=amd64 go build -ldflags="-s -w" -gcflags "all=-trimpath=$(PWD)" -o build/wings_linux_amd64 -v wings.go
+BINARY = "build/wings"
+OSARCHLIST = "darwin/386 darwin/amd64 linux/386 linux/amd64 linux/arm linux/arm64 windows/386 windows/amd64"
 
-compress:
-	upx --brute build/wings_*
+all: $(BINARY)
 
-cross-build: clean build compress
+$(BINARY):
+	go build -o $(BINARY)
 
-clean:
-	rm -rf build/wings_*
+cross-build:
+	gox -osarch $(OSARCHLIST) -output "build/{{.Dir}}_{{.OS}}_{{.Arch}}"
 
-.PHONY: all build compress clean
+.PHONY: install
+install:
+	go install
+
+test:
+	go test `go list ./... | grep -v "/vendor/"`
+
+coverage:
+	goverage -coverprofile=coverage.out ./...
+	go tool cover -html=coverage.out
+
+dependencies:
+	glide install
+
+install-tools:
+	go get -u github.com/mitchellh/gox
+	go get -u github.com/haya14busa/goverage

api/api.go

@@ -4,16 +4,16 @@ import (
 	"bytes"
 	"encoding/json"
 	"fmt"
-	"github.com/apex/log"
 	"github.com/pkg/errors"
 	"github.com/pterodactyl/wings/config"
+	"go.uber.org/zap"
 	"io/ioutil"
 	"net/http"
 	"strings"
 	"time"
 )
 
-// Initializes the requester instance.
+// Initalizes the requester instance.
 func NewRequester() *PanelRequest {
 	return &PanelRequest{
 		Response: nil,
@@ -32,7 +32,7 @@ func (r *PanelRequest) GetClient() *http.Client {
 func (r *PanelRequest) SetHeaders(req *http.Request) *http.Request {
 	req.Header.Set("Accept", "application/vnd.pterodactyl.v1+json")
 	req.Header.Set("Content-Type", "application/json")
-	req.Header.Set("Authorization", fmt.Sprintf("Bearer %s.%s", config.Get().AuthenticationTokenId, config.Get().AuthenticationToken))
+	req.Header.Set("Authorization", "Bearer "+config.Get().AuthenticationToken)
 
 	return req
 }
@@ -45,26 +45,6 @@ func (r *PanelRequest) GetEndpoint(endpoint string) string {
 	)
 }
 
-// Logs the request into the debug log with all of the important request bits.
-// The authorization key will be cleaned up before being output.
-func (r *PanelRequest) logDebug(req *http.Request) {
-	headers := make(map[string][]string)
-	for k, v := range req.Header {
-		if k != "Authorization" || len(v) == 0 {
-			headers[k] = v
-			continue
-		}
-
-		headers[k] = []string{v[0][0:15] + "(redacted)"}
-	}
-
-	log.WithFields(log.Fields{
-		"method": req.Method,
-		"endpoint": req.URL.String(),
-		"headers": headers,
-	}).Debug("making request to external HTTP endpoint")
-}
-
 func (r *PanelRequest) Get(url string) (*http.Response, error) {
 	c := r.GetClient()
 
@@ -75,7 +55,7 @@ func (r *PanelRequest) Get(url string) (*http.Response, error) {
 		return nil, err
 	}
 
-	r.logDebug(req)
+	zap.S().Debugw("GET request to endpoint", zap.String("endpoint", r.GetEndpoint(url)), zap.Any("headers", req.Header))
 
 	return c.Do(req)
 }
@@ -90,7 +70,7 @@ func (r *PanelRequest) Post(url string, data []byte) (*http.Response, error) {
 		return nil, err
 	}
 
-	r.logDebug(req)
+	zap.S().Debugw("POST request to endpoint", zap.String("endpoint", r.GetEndpoint(url)), zap.Any("headers", req.Header))
 
 	return c.Do(req)
 }
@@ -130,12 +110,6 @@ func (r *PanelRequest) HttpResponseCode() int {
 	return r.Response.StatusCode
 }
 
-func IsRequestError(err error) bool {
-	_, ok := err.(*RequestError)
-
-	return ok
-}
-
 type RequestError struct {
 	Code   string `json:"code"`
 	Status string `json:"status"`
@@ -143,12 +117,8 @@ type RequestError struct {
 }
 
 // Returns the error response in a string form that can be more easily consumed.
-func (re *RequestError) Error() string {
-	return fmt.Sprintf("%s: %s (HTTP/%s)", re.Code, re.Detail, re.Status)
-}
-
 func (re *RequestError) String() string {
-	return re.Error()
+	return fmt.Sprintf("%s: %s (HTTP/%s)", re.Code, re.Detail, re.Status)
 }
 
 type RequestErrorBag struct {

api/backup_endpoints.go

@@ -1,36 +0,0 @@
-package api
-
-import (
-	"encoding/json"
-	"fmt"
-	"github.com/pkg/errors"
-)
-
-type BackupRequest struct {
-	Checksum     string `json:"checksum"`
-	ChecksumType string `json:"checksum_type"`
-	Size         int64  `json:"size"`
-	Successful   bool   `json:"successful"`
-}
-
-// Notifies the panel that a specific backup has been completed and is now
-// available for a user to view and download.
-func (r *PanelRequest) SendBackupStatus(backup string, data BackupRequest) (*RequestError, error) {
-	b, err := json.Marshal(data)
-	if err != nil {
-		return nil, errors.WithStack(err)
-	}
-
-	resp, err := r.Post(fmt.Sprintf("/backups/%s", backup), b)
-	if err != nil {
-		return nil, errors.WithStack(err)
-	}
-	defer resp.Body.Close()
-
-	r.Response = resp
-	if r.HasError() {
-		return r.Error(), nil
-	}
-
-	return nil, nil
-}

api/process_configuration.go

@@ -1,68 +0,0 @@
-package api
-
-import (
-	"encoding/json"
-	"github.com/apex/log"
-	"github.com/pterodactyl/wings/parser"
-	"regexp"
-	"strings"
-)
-
-type OutputLineMatcher struct {
-	// The raw string to match against. This may or may not be prefixed with
-	// regex: which indicates we want to match against the regex expression.
-	raw string
-	reg *regexp.Regexp
-}
-
-// Determine if a given string "s" matches the given line.
-func (olm *OutputLineMatcher) Matches(s string) bool {
-	if olm.reg == nil {
-		return strings.Contains(s, olm.raw)
-	}
-
-	return olm.reg.MatchString(s)
-}
-
-// Return the matcher's raw comparison string.
-func (olm *OutputLineMatcher) String() string {
-	return olm.raw
-}
-
-// Unmarshal the startup lines into individual structs for easier matching abilities.
-func (olm *OutputLineMatcher) UnmarshalJSON(data []byte) error {
-	if err := json.Unmarshal(data, &olm.raw); err != nil {
-		return err
-	}
-
-	if strings.HasPrefix(olm.raw, "regex:") && len(olm.raw) > 6 {
-		r, err := regexp.Compile(strings.TrimPrefix(olm.raw, "regex:"))
-		if err != nil {
-			log.WithField("error", err).WithField("raw", olm.raw).Warn("failed to compile output line marked as being regex")
-		}
-
-		olm.reg = r
-	}
-
-	return nil
-}
-
-type ProcessStopConfiguration struct {
-	Type  string `json:"type"`
-	Value string `json:"value"`
-}
-
-// Defines the process configuration for a given server instance. This sets what the
-// daemon is looking for to mark a server as done starting, what to do when stopping,
-// and what changes to make to the configuration file for a server.
-type ProcessConfiguration struct {
-	Startup struct {
-		Done            []*OutputLineMatcher `json:"done"`
-		UserInteraction []string             `json:"user_interaction"`
-		StripAnsi       bool                 `json:"strip_ansi"`
-	} `json:"startup"`
-
-	Stop ProcessStopConfiguration `json:"stop"`
-
-	ConfigurationFiles []parser.ConfigurationFile `json:"configs"`
-}

api/server_endpoints.go

@@ -4,6 +4,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"github.com/pkg/errors"
+	"github.com/pterodactyl/wings/parser"
 )
 
 const (
@@ -25,39 +26,19 @@ type ServerConfigurationResponse struct {
 	ProcessConfiguration *ProcessConfiguration `json:"process_configuration"`
 }
 
-// Defines installation script information for a server process. This is used when
-// a server is installed for the first time, and when a server is marked for re-installation.
-type InstallationScript struct {
-	ContainerImage string `json:"container_image"`
-	Entrypoint     string `json:"entrypoint"`
-	Script         string `json:"script"`
-}
-
-// GetAllServerConfigurations fetches configurations for all servers assigned to this node.
-func (r *PanelRequest) GetAllServerConfigurations() (map[string]*ServerConfigurationResponse, *RequestError, error) {
-	resp, err := r.Get("/servers")
-	if err != nil {
-		return nil, nil, errors.WithStack(err)
-	}
-	defer resp.Body.Close()
-
-	r.Response = resp
-
-	if r.HasError() {
-		return nil, r.Error(), nil
-	}
-
-	b, _ := r.ReadBody()
-	res := map[string]*ServerConfigurationResponse{}
-	if len(b) == 2 {
-		return res, nil, nil
-	}
-
-	if err := json.Unmarshal(b, &res); err != nil {
-		return nil, nil, errors.WithStack(err)
-	}
-
-	return res, nil, nil
+// Defines the process configuration for a given server instance. This sets what the
+// daemon is looking for to mark a server as done starting, what to do when stopping,
+// and what changes to make to the configuration file for a server.
+type ProcessConfiguration struct {
+	Startup struct {
+		Done            string   `json:"done"`
+		UserInteraction []string `json:"userInteraction"`
+	} `json:"startup"`
+	Stop struct {
+		Type  string `json:"type"`
+		Value string `json:"value"`
+	} `json:"stop"`
+	ConfigurationFiles []parser.ConfigurationFile `json:"configs"`
 }
 
 // Fetches the server configuration and returns the struct for it.
@@ -83,107 +64,3 @@ func (r *PanelRequest) GetServerConfiguration(uuid string) (*ServerConfiguration
 
 	return res, nil, nil
 }
-
-// Fetches installation information for the server process.
-func (r *PanelRequest) GetInstallationScript(uuid string) (InstallationScript, *RequestError, error) {
-	res := InstallationScript{}
-
-	resp, err := r.Get(fmt.Sprintf("/servers/%s/install", uuid))
-	if err != nil {
-		return res, nil, errors.WithStack(err)
-	}
-	defer resp.Body.Close()
-
-	r.Response = resp
-
-	if r.HasError() {
-		return res, r.Error(), nil
-	}
-
-	b, _ := r.ReadBody()
-
-	if err := json.Unmarshal(b, &res); err != nil {
-		return res, nil, errors.WithStack(err)
-	}
-
-	return res, nil, nil
-}
-
-type installRequest struct {
-	Successful bool `json:"successful"`
-}
-
-// Marks a server as being installed successfully or unsuccessfully on the panel.
-func (r *PanelRequest) SendInstallationStatus(uuid string, successful bool) (*RequestError, error) {
-	b, err := json.Marshal(installRequest{Successful: successful})
-	if err != nil {
-		return nil, errors.WithStack(err)
-	}
-
-	resp, err := r.Post(fmt.Sprintf("/servers/%s/install", uuid), b)
-	if err != nil {
-		return nil, errors.WithStack(err)
-	}
-	defer resp.Body.Close()
-
-	r.Response = resp
-	if r.HasError() {
-		return r.Error(), nil
-	}
-
-	return nil, nil
-}
-
-type archiveRequest struct {
-	Successful bool `json:"successful"`
-}
-
-func (r *PanelRequest) SendArchiveStatus(uuid string, successful bool) (*RequestError, error) {
-	b, err := json.Marshal(archiveRequest{Successful: successful})
-	if err != nil {
-		return nil, errors.WithStack(err)
-	}
-
-	resp, err := r.Post(fmt.Sprintf("/servers/%s/archive", uuid), b)
-	if err != nil {
-		return nil, errors.WithStack(err)
-	}
-	defer resp.Body.Close()
-
-	r.Response = resp
-	if r.HasError() {
-		return r.Error(), nil
-	}
-
-	return nil, nil
-}
-
-func (r *PanelRequest) SendTransferFailure(uuid string) (*RequestError, error) {
-	resp, err := r.Get(fmt.Sprintf("/servers/%s/transfer/failure", uuid))
-	if err != nil {
-		return nil, errors.WithStack(err)
-	}
-	defer resp.Body.Close()
-
-	r.Response = resp
-	if r.HasError() {
-		return r.Error(), nil
-	}
-
-	return nil, nil
-}
-
-func (r *PanelRequest) SendTransferSuccess(uuid string) (*RequestError, error) {
-	resp, err := r.Get(fmt.Sprintf("/servers/%s/transfer/success", uuid))
-	if err != nil {
-		return nil, errors.WithStack(err)
-	}
-	defer resp.Body.Close()
-
-	r.Response = resp
-	if r.HasError() {
-		return r.Error(), nil
-	}
-
-	return nil, nil
-}

api/sftp_endpoints.go

@@ -21,13 +21,11 @@ func (r *PanelRequest) ValidateSftpCredentials(request sftp_server.Authenticatio
 	r.Response = resp
 
 	if r.HasError() {
-		if r.HttpResponseCode() >= 400 && r.HttpResponseCode() < 500 {
-			return nil, new(sftp_server.InvalidCredentialsError)
+		if r.HttpResponseCode() == 403 {
+			return nil, sftp_server.InvalidCredentialsError{}
 		}
 
-		rerr := errors.New(r.Error().String())
-
-		return nil, rerr
+		return nil, errors.WithStack(errors.New(r.Error().String()))
 	}
 
 	response := new(sftp_server.AuthenticationResponse)

cmd/config_finder.go

@@ -1,60 +0,0 @@
-package cmd
-
-import (
-	"github.com/pterodactyl/wings/config"
-	"os"
-	"path/filepath"
-)
-
-// We've gone through a couple of iterations of where the configuration is stored. This
-// helpful little function will look through the three areas it might have ended up, and
-// return it.
-//
-// We only run this if the configuration flag for the instance is not actually passed in
-// via the command line. Once found, the configuration is moved into the expected default
-// location. Only errors are returned from this function, you can safely assume that after
-// running this the configuration can be found in the correct default location.
-func RelocateConfiguration() error {
-	var match string
-	check := []string{
-		config.DefaultLocation,
-		"/var/lib/pterodactyl/config.yml",
-		"/etc/wings/config.yml",
-	}
-
-	// Loop over all of the configuration paths, and return which one we found, if
-	// any.
-	for _, p := range check {
-		if s, err := os.Stat(p); err != nil {
-			if !os.IsNotExist(err) {
-				return err
-			}
-		} else if !s.IsDir() {
-			match = p
-			break
-		}
-	}
-
-	// Just return a generic not exist error at this point if we didn't have a match, this
-	// will allow the caller to handle displaying a more friendly error to the user. If we
-	// did match in the default location, go ahead and return successfully.
-	if match == "" {
-		return os.ErrNotExist
-	} else if match == config.DefaultLocation {
-		return nil
-	}
-
-	// The rest of this function simply creates the new default location and moves the
-	// old configuration file over to the new location, then sets the permissions on the
-	// file correctly so that only the user running this process can read it.
-	p, _ := filepath.Split(config.DefaultLocation)
-	if err := os.MkdirAll(p, 0755); err != nil {
-		return err
-	}
-
-	if err := os.Rename(match, config.DefaultLocation); err != nil {
-		return err
-	}
-
-	return os.Chmod(config.DefaultLocation, 0600)
-}

cmd/configure.go

@@ -1,183 +0,0 @@
-package cmd
-
-import (
-	"crypto/tls"
-	"encoding/json"
-	"fmt"
-	"github.com/AlecAivazis/survey/v2"
-	"github.com/AlecAivazis/survey/v2/terminal"
-	"github.com/pterodactyl/wings/config"
-	"github.com/spf13/cobra"
-	"io/ioutil"
-	"net/http"
-	"net/url"
-	"os"
-	"path"
-	"regexp"
-	"time"
-)
-
-var (
-	configureArgs struct {
-		PanelURL      string
-		Token         string
-		ConfigPath    string
-		Node          string
-		Override      bool
-		AllowInsecure bool
-	}
-)
-
-var nodeIdRegex = regexp.MustCompile(`^(\d+)$`)
-
-var configureCmd = &cobra.Command{
-	Use:   "configure",
-	Short: "Use a token to configure wings automatically",
-	Run:   configureCmdRun,
-}
-
-func init() {
-	configureCmd.PersistentFlags().StringVarP(&configureArgs.PanelURL, "panel-url", "p", "", "The base URL for this daemon's panel")
-	configureCmd.PersistentFlags().StringVarP(&configureArgs.Token, "token", "t", "", "The API key to use for fetching node information")
-	configureCmd.PersistentFlags().StringVarP(&configureArgs.Node, "node", "n", "", "The ID of the node which will be connected to this daemon")
-	configureCmd.PersistentFlags().StringVarP(&configureArgs.ConfigPath, "config-path", "c", config.DefaultLocation, "The path where the configuration file should be made")
-	configureCmd.PersistentFlags().BoolVar(&configureArgs.Override, "override", false, "Set to true to override an existing configuration for this node")
-	configureCmd.PersistentFlags().BoolVar(&configureArgs.AllowInsecure, "allow-insecure", false, "Set to true to disable certificate checking")
-}
-
-func configureCmdRun(cmd *cobra.Command, args []string) {
-	if configureArgs.AllowInsecure {
-		http.DefaultTransport.(*http.Transport).TLSClientConfig = &tls.Config{
-			InsecureSkipVerify: true,
-		}
-	}
-
-	if _, err := os.Stat(configureArgs.ConfigPath); err == nil && !configureArgs.Override {
-		survey.AskOne(&survey.Confirm{Message: "Override existing configuration file"}, &configureArgs.Override)
-		if !configureArgs.Override {
-			fmt.Println("Aborting process; a configuration file already exists for this node.")
-			os.Exit(1)
-		}
-	} else if err != nil && !os.IsNotExist(err) {
-		panic(err)
-	}
-
-	var questions []*survey.Question
-	if configureArgs.PanelURL == "" {
-		questions = append(questions, &survey.Question{
-			Name:   "PanelURL",
-			Prompt: &survey.Input{Message: "Panel URL: "},
-			Validate: func(ans interface{}) error {
-				if str, ok := ans.(string); ok {
-					_, err := url.ParseRequestURI(str)
-					return err
-				}
-				return nil
-			},
-		})
-	}
-
-	if configureArgs.Token == "" {
-		questions = append(questions, &survey.Question{
-			Name:   "Token",
-			Prompt: &survey.Input{Message: "API Token: "},
-			Validate: func(ans interface{}) error {
-				if str, ok := ans.(string); ok {
-					if len(str) == 0 {
-						return fmt.Errorf("please provide a valid authentication token")
-					}
-				}
-				return nil
-			},
-		})
-	}
-
-	if configureArgs.Node == "" {
-		questions = append(questions, &survey.Question{
-			Name:   "Node",
-			Prompt: &survey.Input{Message: "Node ID: "},
-			Validate: func(ans interface{}) error {
-				if str, ok := ans.(string); ok {
-					if !nodeIdRegex.Match([]byte(str)) {
-						return fmt.Errorf("please provide a valid authentication token")
-					}
-				}
-				return nil
-			},
-		})
-	}
-
-	if err := survey.Ask(questions, &configureArgs); err != nil {
-		if err == terminal.InterruptErr {
-			return
-		}
-
-		panic(err)
-	}
-
-	c := &http.Client{
-		Timeout: time.Second * 30,
-	}
-
-	req, err := getRequest()
-	if err != nil {
-		panic(err)
-	}
-
-	fmt.Printf("%+v", req.Header)
-	fmt.Printf(req.URL.String())
-
-	res, err := c.Do(req)
-	if err != nil {
-		fmt.Println("Failed to fetch configuration from the panel.\n", err.Error())
-		os.Exit(1)
-	}
-	defer res.Body.Close()
-
-	if res.StatusCode == http.StatusForbidden || res.StatusCode == http.StatusUnauthorized {
-		fmt.Println("The authentication credentials provided were not valid.")
-		os.Exit(1)
-	} else if res.StatusCode != http.StatusOK {
-		b, _ := ioutil.ReadAll(res.Body)
-
-		fmt.Println("An error occurred while processing this request.\n", string(b))
-		os.Exit(1)
-	}
-
-	b, err := ioutil.ReadAll(res.Body)
-
-	cfg, err := config.NewFromPath(configPath)
-	if err != nil {
-		panic(err)
-	}
-
-	if err := json.Unmarshal(b, cfg); err != nil {
-		panic(err)
-	}
-
-	if err = cfg.WriteToDisk(); err != nil {
-		panic(err)
-	}
-
-	fmt.Println("Successfully configured wings.")
-}
-
-func getRequest() (*http.Request, error) {
-	u, err := url.Parse(configureArgs.PanelURL)
-	if err != nil {
-		panic(err)
-	}
-
-	u.Path = path.Join(u.Path, fmt.Sprintf("api/application/nodes/%s/configuration", configureArgs.Node))
-
-	r, err := http.NewRequest(http.MethodGet, u.String(), nil)
-	if err != nil {
-		return nil, err
-	}
-
-	r.Header.Set("Accept", "application/vnd.pterodactyl.v1+json")
-	r.Header.Set("Content-Type", "application/json")
-	r.Header.Set("Authorization", fmt.Sprintf("Bearer %s", configureArgs.Token))
-
-	return r, nil
-}

cmd/diagnostics.go

@@ -1,226 +0,0 @@
-package cmd
-
-import (
-	"context"
-	"encoding/json"
-	"errors"
-	"fmt"
-	"io"
-	"io/ioutil"
-	"net/http"
-	"net/url"
-	"os/exec"
-	"path"
-	"strings"
-
-	"github.com/AlecAivazis/survey/v2"
-	"github.com/AlecAivazis/survey/v2/terminal"
-	"github.com/docker/cli/components/engine/pkg/parsers/operatingsystem"
-	"github.com/docker/docker/api/types"
-	"github.com/docker/docker/client"
-	"github.com/docker/docker/pkg/parsers/kernel"
-	"github.com/pterodactyl/wings/config"
-	"github.com/pterodactyl/wings/system"
-	"github.com/spf13/cobra"
-)
-
-const DefaultHastebinUrl = "https://hastebin.com"
-
-var (
-	diagnosticsArgs struct {
-		IncludeEndpoints   bool
-		IncludeLogs        bool
-		ReviewBeforeUpload bool
-		HastebinURL        string
-	}
-)
-
-var diagnosticsCmd = &cobra.Command{
-	Use:   "diagnostics",
-	Short: "Collect diagnostics information.",
-	Run:   diagnosticsCmdRun,
-}
-
-func init() {
-	diagnosticsCmd.PersistentFlags().StringVar(&diagnosticsArgs.HastebinURL, "hastebin-url", DefaultHastebinUrl, "The url of the hastebin instance to use.")
-}
-
-// diagnosticsCmdRun collects diagnostics about wings, it's configuration and the node.
-// We collect:
-// - wings and docker versions
-// - relevant parts of daemon configuration
-// - the docker debug output
-// - running docker containers
-// - logs
-func diagnosticsCmdRun(cmd *cobra.Command, args []string) {
-	questions := []*survey.Question{
-		{
-			Name:   "IncludeEndpoints",
-			Prompt: &survey.Confirm{Message: "Do you want to include endpoints (i.e. the FQDN/IP of your panel)?", Default: false},
-		},
-		{
-			Name:   "IncludeLogs",
-			Prompt: &survey.Confirm{Message: "Do you want to include the latest logs?", Default: true},
-		},
-		{
-			Name: "ReviewBeforeUpload",
-			Prompt: &survey.Confirm{
-				Message: "Do you want to review the collected data before uploading to hastebin.com?",
-				Help:    "The data, especially the logs, might contain sensitive information, so you should review it. You will be asked again if you want to uplaod.",
-				Default: true,
-			},
-		},
-	}
-	if err := survey.Ask(questions, &diagnosticsArgs); err != nil {
-		if err == terminal.InterruptErr {
-			return
-		}
-		panic(err)
-	}
-
-	dockerVersion, dockerInfo, dockerErr := getDockerInfo()
-	_ = dockerInfo
-
-	output := &strings.Builder{}
-	fmt.Fprintln(output, "Pterodactly Wings - Diagnostics Report")
-	printHeader(output, "Versions")
-	fmt.Fprintln(output, "wings:", system.Version)
-	if dockerErr == nil {
-		fmt.Fprintln(output, "Docker", dockerVersion.Version)
-	}
-	if v, err := kernel.GetKernelVersion(); err == nil {
-		fmt.Fprintln(output, "Kernel:", v)
-	}
-	if os, err := operatingsystem.GetOperatingSystem(); err == nil {
-		fmt.Fprintln(output, "OS:", os)
-	}
-
-	printHeader(output, "Wings Configuration")
-	if cfg, err := config.ReadConfiguration(config.DefaultLocation); cfg != nil {
-		fmt.Fprintln(output, "Panel Location:", redact(cfg.PanelLocation))
-		fmt.Fprintln(output, "Api Host:", redact(cfg.Api.Host))
-		fmt.Fprintln(output, "Api Port:", cfg.Api.Port)
-		fmt.Fprintln(output, "Api Ssl Enabled:", cfg.Api.Ssl.Enabled)
-		fmt.Fprintln(output, "Api Ssl Certificate:", redact(cfg.Api.Ssl.CertificateFile))
-		fmt.Fprintln(output, "Api Ssl Key:", redact(cfg.Api.Ssl.KeyFile))
-		fmt.Fprintln(output, "Sftp Address:", redact(cfg.System.Sftp.Address))
-		fmt.Fprintln(output, "Sftp Port:", cfg.System.Sftp.Port)
-		fmt.Fprintln(output, "Sftp Read Only:", cfg.System.Sftp.ReadOnly)
-		fmt.Fprintln(output, "Sftp Diskchecking Disabled:", cfg.System.Sftp.DisableDiskChecking)
-		fmt.Fprintln(output, "System Root Directory:", cfg.System.RootDirectory)
-		fmt.Fprintln(output, "System Logs Directory:", cfg.System.LogDirectory)
-		fmt.Fprintln(output, "System Data Directory:", cfg.System.Data)
-		fmt.Fprintln(output, "System Archive Directory:", cfg.System.ArchiveDirectory)
-		fmt.Fprintln(output, "System Backup Directory:", cfg.System.BackupDirectory)
-		fmt.Fprintln(output, "System Username:", cfg.System.Username)
-		fmt.Fprintln(output, "Debug Enabled:", cfg.Debug)
-	} else {
-		fmt.Println("Failed to load configuration.", err)
-	}
-
-	printHeader(output, "Docker: Info")
-	fmt.Fprintln(output, "Server Version:", dockerInfo.ServerVersion)
-	fmt.Fprintln(output, "Storage Driver:", dockerInfo.Driver)
-	if dockerInfo.DriverStatus != nil {
-		for _, pair := range dockerInfo.DriverStatus {
-			fmt.Fprintf(output, "  %s: %s\n", pair[0], pair[1])
-		}
-	}
-	if dockerInfo.SystemStatus != nil {
-		for _, pair := range dockerInfo.SystemStatus {
-			fmt.Fprintf(output, " %s: %s\n", pair[0], pair[1])
-		}
-	}
-	fmt.Fprintln(output, "LoggingDriver:", dockerInfo.LoggingDriver)
-	fmt.Fprintln(output, "CgroupDriver:", dockerInfo.CgroupDriver)
-	if len(dockerInfo.Warnings) > 0 {
-		for _, w := range dockerInfo.Warnings {
-			fmt.Fprintln(output, w)
-		}
-	}
-
-	printHeader(output, "Docker: Running Containers")
-	c := exec.Command("docker", "ps")
-	if co, err := c.Output(); err == nil {
-		output.Write(co)
-	} else {
-		fmt.Fprint(output, "Couldn't list containers: ", err)
-	}
-
-	printHeader(output, "Latest Wings Logs")
-	if diagnosticsArgs.IncludeLogs {
-		fmt.Fprintln(output, "No logs found. Probably because nobody implemented logging to files yet :(")
-	} else {
-		fmt.Fprintln(output, "Logs redacted.")
-	}
-
-	fmt.Println("\n---------------  generated report  ---------------")
-	fmt.Println(output.String())
-	fmt.Print("---------------   end of report    ---------------\n\n")
-
-	upload := !diagnosticsArgs.ReviewBeforeUpload
-	if !upload {
-		survey.AskOne(&survey.Confirm{Message: "Upload to " + diagnosticsArgs.HastebinURL + "?", Default: false}, &upload)
-	}
-	if upload {
-		url, err := uploadToHastebin(diagnosticsArgs.HastebinURL, output.String())
-		if err == nil {
-			fmt.Println("Your report is available here: ", url)
-		}
-	}
-}
-
-func getDockerInfo() (types.Version, types.Info, error) {
-	cli, err := client.NewClientWithOpts(client.FromEnv)
-	if err != nil {
-		return types.Version{}, types.Info{}, err
-	}
-	dockerVersion, err := cli.ServerVersion(context.Background())
-	if err != nil {
-		return types.Version{}, types.Info{}, err
-	}
-	dockerInfo, err := cli.Info(context.Background())
-	if err != nil {
-		return types.Version{}, types.Info{}, err
-	}
-	return dockerVersion, dockerInfo, nil
-}
-
-func uploadToHastebin(hbUrl, content string) (string, error) {
-	r := strings.NewReader(content)
-	u, err := url.Parse(hbUrl)
-	if err != nil {
-		return "", err
-	}
-	u.Path = path.Join(u.Path, "documents")
-	res, err := http.Post(u.String(), "plain/text", r)
-	if err != nil || res.StatusCode != 200 {
-		fmt.Println("Failed to upload report to ", u.String(), err)
-		return "", err
-	}
-	pres := make(map[string]interface{})
-	body, err := ioutil.ReadAll(res.Body)
-	if err != nil {
-		fmt.Println("Failed to parse response.", err)
-		return "", err
-	}
-	json.Unmarshal(body, &pres)
-	if key, ok := pres["key"].(string); ok {
-		u, _ := url.Parse(hbUrl)
-		u.Path = path.Join(u.Path, key)
-		return u.String(), nil
-	}
-	return "", errors.New("Couldn't find key in response")
-}
-
-func redact(s string) string {
-	if !diagnosticsArgs.IncludeEndpoints {
-		return "{redacted}"
-	}
-	return s
-}
-
-func printHeader(w io.Writer, title string) {
-	fmt.Fprintln(w, "\n|\n|", title)
-	fmt.Fprintln(w, "| ------------------------------")
-}

cmd/root.go

@@ -1,417 +0,0 @@
-package cmd
-
-import (
-	"crypto/tls"
-	"fmt"
-	"github.com/NYTimes/logrotate"
-	"github.com/apex/log/handlers/multi"
-	"github.com/gammazero/workerpool"
-	"golang.org/x/crypto/acme"
-	"net/http"
-	"os"
-	"path"
-	"path/filepath"
-	"strings"
-
-	"github.com/apex/log"
-	"github.com/mitchellh/colorstring"
-	"github.com/pterodactyl/wings/loggers/cli"
-	"golang.org/x/crypto/acme/autocert"
-
-	"github.com/pkg/errors"
-	"github.com/pkg/profile"
-	"github.com/pterodactyl/wings/config"
-	"github.com/pterodactyl/wings/environment"
-	"github.com/pterodactyl/wings/router"
-	"github.com/pterodactyl/wings/server"
-	"github.com/pterodactyl/wings/sftp"
-	"github.com/pterodactyl/wings/system"
-	"github.com/spf13/cobra"
-	"go.uber.org/zap"
-)
-
-var configPath = config.DefaultLocation
-var debug = false
-var shouldRunProfiler = false
-var useAutomaticTls = false
-var tlsHostname = ""
-var showVersion = false
-
-var root = &cobra.Command{
-	Use:   "wings",
-	Short: "The wings of the pterodactyl game management panel",
-	Long:  ``,
-	PreRun: func(cmd *cobra.Command, args []string) {
-		if useAutomaticTls && len(tlsHostname) == 0 {
-			fmt.Println("A TLS hostname must be provided when running wings with automatic TLS, e.g.:\n\n    ./wings --auto-tls --tls-hostname my.example.com")
-			os.Exit(1)
-		}
-	},
-	Run: rootCmdRun,
-}
-
-func init() {
-	root.PersistentFlags().BoolVar(&showVersion, "version", false, "show the version and exit")
-	root.PersistentFlags().StringVar(&configPath, "config", config.DefaultLocation, "set the location for the configuration file")
-	root.PersistentFlags().BoolVar(&debug, "debug", false, "pass in order to run wings in debug mode")
-	root.PersistentFlags().BoolVar(&shouldRunProfiler, "profile", false, "pass in order to profile wings")
-	root.PersistentFlags().BoolVar(&useAutomaticTls, "auto-tls", false, "pass in order to have wings generate and manage it's own SSL certificates using Let's Encrypt")
-	root.PersistentFlags().StringVar(&tlsHostname, "tls-hostname", "", "required with --auto-tls, the FQDN for the generated SSL certificate")
-
-	root.AddCommand(configureCmd)
-	root.AddCommand(diagnosticsCmd)
-}
-
-// Get the configuration path based on the arguments provided.
-func readConfiguration() (*config.Configuration, error) {
-	var p = configPath
-	if !strings.HasPrefix(p, "/") {
-		d, err := os.Getwd()
-		if err != nil {
-			return nil, err
-		}
-
-		p = path.Clean(path.Join(d, configPath))
-	}
-
-	if s, err := os.Stat(p); err != nil {
-		return nil, errors.WithStack(err)
-	} else if s.IsDir() {
-		return nil, errors.New("cannot use directory as configuration file path")
-	}
-
-	return config.ReadConfiguration(p)
-}
-
-func rootCmdRun(*cobra.Command, []string) {
-	if showVersion {
-		fmt.Println(system.Version)
-		os.Exit(0)
-	}
-
-	if shouldRunProfiler {
-		defer profile.Start().Stop()
-	}
-
-	// Only attempt configuration file relocation if a custom location has not
-	// been specified in the command startup.
-	if configPath == config.DefaultLocation {
-		if err := RelocateConfiguration(); err != nil {
-			if os.IsNotExist(err) {
-				exitWithConfigurationNotice()
-			}
-
-			panic(err)
-		}
-	}
-
-	c, err := readConfiguration()
-	if err != nil {
-		panic(err)
-	}
-
-	if debug {
-		c.Debug = true
-	}
-
-	printLogo()
-	if err := configureLogging(c.System.LogDirectory, c.Debug); err != nil {
-		panic(err)
-	}
-
-	log.WithField("path", c.GetPath()).Info("loading configuration from path")
-	if c.Debug {
-		log.Debug("running in debug mode")
-		log.Warn("certificate checking is disabled")
-
-		http.DefaultTransport.(*http.Transport).TLSClientConfig = &tls.Config{
-			InsecureSkipVerify: true,
-		}
-	}
-
-	config.Set(c)
-	config.SetDebugViaFlag(debug)
-
-	if err := c.System.ConfigureDirectories(); err != nil {
-		log.WithError(err).Fatal("failed to configure system directories for pterodactyl")
-		os.Exit(1)
-		return
-	}
-
-	log.WithField("username", c.System.Username).Info("checking for pterodactyl system user")
-	if su, err := c.EnsurePterodactylUser(); err != nil {
-		log.WithError(err).Error("failed to create pterodactyl system user")
-		os.Exit(1)
-		return
-	} else {
-		log.WithFields(log.Fields{
-			"username": su.Username,
-			"uid":      su.Uid,
-			"gid":      su.Gid,
-		}).Info("configured system user successfully")
-	}
-
-	if err := server.LoadDirectory(); err != nil {
-		log.WithField("error", err).Fatal("failed to load server configurations")
-		return
-	}
-
-	if err := environment.ConfigureDocker(&c.Docker); err != nil {
-		log.WithField("error", err).Fatal("failed to configure docker environment")
-		os.Exit(1)
-	}
-
-	if err := c.WriteToDisk(); err != nil {
-		log.WithField("error", err).Error("failed to save configuration to disk")
-	}
-
-	// Just for some nice log output.
-	for _, s := range server.GetServers().All() {
-		log.WithField("server", s.Id()).Info("loaded configuration for server")
-	}
-
-	// Create a new workerpool that limits us to 4 servers being bootstrapped at a time
-	// on Wings. This allows us to ensure the environment exists, write configurations,
-	// and reboot processes without causing a slow-down due to sequential booting.
-	pool := workerpool.New(4)
-
-	for _, serv := range server.GetServers().All() {
-		s := serv
-
-		pool.Submit(func() {
-			s.Log().Info("ensuring server environment exists")
-			// Create a server environment if none exists currently. This allows us to recover from Docker
-			// being reinstalled on the host system for example.
-			if err := s.Environment.Create(); err != nil {
-				s.Log().WithField("error", err).Error("failed to process environment")
-			}
-
-			r, err := s.Environment.IsRunning()
-			if err != nil {
-				s.Log().WithField("error", err).Error("error checking server environment status")
-			}
-
-			// If the server is currently running on Docker, mark the process as being in that state.
-			// We never want to stop an instance that is currently running external from Wings since
-			// that is a good way of keeping things running even if Wings gets in a very corrupted state.
-			//
-			// This will also validate that a server process is running if the last tracked state we have
-			// is that it was running, but we see that the container process is not currently running.
-			if r || (!r && s.IsRunning()) {
-				s.Log().Info("detected server is running, re-attaching to process...")
-
-				s.SetState(environment.ProcessRunningState)
-				if err := s.Environment.Attach(); err != nil {
-					s.Log().WithField("error", errors.WithStack(err)).Warn("failed to attach to running server environment")
-				}
-
-				return
-			}
-
-			// Addresses potentially invalid data in the stored file that can cause Wings to lose
-			// track of what the actual server state is.
-			_ = s.SetState(environment.ProcessOfflineState)
-		})
-	}
-
-	// Wait until all of the servers are ready to go before we fire up the SFTP and HTTP servers.
-	pool.StopWait()
-
-	// Initialize the SFTP server.
-	if err := sftp.Initialize(c); err != nil {
-		log.WithError(err).Error("failed to initialize the sftp server")
-		os.Exit(1)
-		return
-	}
-
-	// Ensure the archive directory exists.
-	if err := os.MkdirAll(c.System.ArchiveDirectory, 0755); err != nil {
-		log.WithField("error", err).Error("failed to create archive directory")
-	}
-
-	// Ensure the backup directory exists.
-	if err := os.MkdirAll(c.System.BackupDirectory, 0755); err != nil {
-		log.WithField("error", err).Error("failed to create backup directory")
-	}
-
-	log.WithFields(log.Fields{
-		"use_ssl":      c.Api.Ssl.Enabled,
-		"use_auto_tls": useAutomaticTls && len(tlsHostname) > 0,
-		"host_address": c.Api.Host,
-		"host_port":    c.Api.Port,
-	}).Info("configuring internal webserver")
-
-	// Configure the router.
-	r := router.Configure()
-
-	s := &http.Server{
-		Addr:    fmt.Sprintf("%s:%d", c.Api.Host, c.Api.Port),
-		Handler: r,
-
-		TLSConfig: &tls.Config{
-			NextProtos: []string{
-				"h2", // enable HTTP/2
-				"http/1.1",
-			},
-
-			// https://blog.cloudflare.com/exposing-go-on-the-internet
-			CipherSuites: []uint16{
-				tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
-				tls.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
-
-				tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
-				tls.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
-
-				tls.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256,
-
-				tls.TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256,
-			},
-
-			PreferServerCipherSuites: true,
-
-			MinVersion: tls.VersionTLS12,
-			MaxVersion: tls.VersionTLS13,
-
-			CurvePreferences: []tls.CurveID{
-				tls.X25519,
-				tls.CurveP256,
-			},
-			// END https://blog.cloudflare.com/exposing-go-on-the-internet
-		},
-	}
-
-	// Check if the server should run with TLS but using autocert.
-	if useAutomaticTls && len(tlsHostname) > 0 {
-		m := autocert.Manager{
-			Prompt:     autocert.AcceptTOS,
-			Cache:      autocert.DirCache(path.Join(c.System.RootDirectory, "/.tls-cache")),
-			HostPolicy: autocert.HostWhitelist(tlsHostname),
-		}
-
-		log.WithField("hostname", tlsHostname).
-			Info("webserver is now listening with auto-TLS enabled; certificates will be automatically generated by Let's Encrypt")
-
-		// Hook autocert into the main http server.
-		s.TLSConfig.GetCertificate = m.GetCertificate
-		s.TLSConfig.NextProtos = append(s.TLSConfig.NextProtos, acme.ALPNProto) // enable tls-alpn ACME challenges
-
-		// Start the autocert server.
-		go func() {
-			if err := http.ListenAndServe(":http", m.HTTPHandler(nil)); err != nil {
-				log.WithError(err).Error("failed to serve autocert http server")
-			}
-		}()
-
-		// Start the main http server with TLS using autocert.
-		if err := s.ListenAndServeTLS("", ""); err != nil {
-			log.WithFields(log.Fields{"auto_tls": true, "tls_hostname": tlsHostname, "error": err}).
-				Fatal("failed to configure HTTP server using auto-tls")
-			os.Exit(1)
-		}
-
-		return
-	}
-
-	// Check if main http server should run with TLS.
-	if c.Api.Ssl.Enabled {
-		if err := s.ListenAndServeTLS(c.Api.Ssl.CertificateFile, c.Api.Ssl.KeyFile); err != nil {
-			log.WithFields(log.Fields{"auto_tls": false, "error": err}).Fatal("failed to configure HTTPS server")
-			os.Exit(1)
-		}
-		return
-	}
-
-	// Run the main http server without TLS.
-	s.TLSConfig = nil
-	if err := s.ListenAndServe(); err != nil {
-		log.WithField("error", err).Fatal("failed to configure HTTP server")
-		os.Exit(1)
-	}
-}
-
-// Execute calls cobra to handle cli commands
-func Execute() error {
-	return root.Execute()
-}
-
-// Configures the global logger for Zap so that we can call it from any location
-// in the code without having to pass around a logger instance.
-func configureLogging(logDir string, debug bool) error {
-	if err := os.MkdirAll(path.Join(logDir, "/install"), 0700); err != nil {
-		return errors.WithStack(err)
-	}
-
-	cfg := zap.NewProductionConfig()
-	if debug {
-		cfg = zap.NewDevelopmentConfig()
-	}
-
-	cfg.Encoding = "console"
-	cfg.OutputPaths = []string{
-		"stdout",
-	}
-
-	logger, err := cfg.Build()
-	if err != nil {
-		return err
-	}
-
-	zap.ReplaceGlobals(logger)
-
-	p := filepath.Join(logDir, "/wings.log")
-	w, err := logrotate.NewFile(p)
-	if err != nil {
-		panic(errors.Wrap(err, "failed to open process log file"))
-	}
-
-	log.SetLevel(log.DebugLevel)
-	log.SetHandler(multi.New(
-		cli.Default,
-		cli.New(w.File, false),
-	))
-
-	log.WithField("path", p).Info("writing log files to disk")
-
-	return nil
-}
-
-// Prints the wings logo, nothing special here!
-func printLogo() {
-	fmt.Printf(colorstring.Color(`
-                     ____
-__ [blue][bold]Pterodactyl[reset] _____/___/_______ _______ ______
-\_____\    \/\/    /   /       /  __   /   ___/
-   \___\          /   /   /   /  /_/  /___   /
-        \___/\___/___/___/___/___    /______/
-                            /_______/ [bold]v%s[reset]
-
-Copyright © 2018 - 2020 Dane Everitt & Contributors
-
-Website:  https://pterodactyl.io
- Source:  https://github.com/pterodactyl/wings
-License:  https://github.com/pterodactyl/wings/blob/develop/LICENSE
-
-This software is made available under the terms of the MIT license.
-The above copyright notice and this permission notice shall be included
-in all copies or substantial portions of the Software.%s`), system.Version, "\n\n")
-}
-
-func exitWithConfigurationNotice() {
-	fmt.Print(colorstring.Color(`
-[_red_][white][bold]Error: Configuration File Not Found[reset]
-
-Wings was not able to locate your configuration file, and therefore is not
-able to complete its boot process.
-
-Please ensure you have copied your instance configuration file into
-the default location, or have provided the --config flag to use a
-custom location.
-
-Default Location: /etc/pterodactyl/config.yml
-
-[yellow]This is not a bug with this software. Please do not make a bug report
-for this issue, it will be closed.[reset]
-
-`))
-	os.Exit(1)
-}

config/config.go

@@ -2,50 +2,28 @@ package config
 
 import (
 	"fmt"
-	"github.com/cobaugh/osrelease"
 	"github.com/creasty/defaults"
-	"github.com/gbrlsnchs/jwt/v3"
-	"github.com/pkg/errors"
+	"go.uber.org/zap"
 	"gopkg.in/yaml.v2"
 	"io/ioutil"
 	"os"
 	"os/exec"
 	"os/user"
+	"path"
+	"regexp"
 	"strconv"
 	"strings"
 	"sync"
 )
 
-const DefaultLocation = "/etc/pterodactyl/config.yml"
-
 type Configuration struct {
-	sync.RWMutex `json:"-" yaml:"-"`
-
-	// The location from which this configuration instance was instantiated.
-	path string
-
-	// Locker specific to writing the configuration to the disk, this happens
-	// in areas that might already be locked so we don't want to crash the process.
-	writeLock sync.Mutex
-
 	// Determines if wings should be running in debug mode. This value is ignored
 	// if the debug flag is passed through the command line arguments.
 	Debug bool
 
-	// A unique identifier for this node in the Panel.
-	Uuid string
-
-	// An identifier for the token which must be included in any requests to the panel
-	// so that the token can be looked up correctly.
-	AuthenticationTokenId string `json:"token_id" yaml:"token_id"`
-
-	// The token used when performing operations. Requests to this instance must
-	// validate against it.
-	AuthenticationToken string `json:"token" yaml:"token"`
-
-	Api    ApiConfiguration    `json:"api" yaml:"api"`
-	System SystemConfiguration `json:"system" yaml:"system"`
-	Docker DockerConfiguration `json:"docker" yaml:"docker"`
+	Api    ApiConfiguration
+	System SystemConfiguration
+	Docker DockerConfiguration
 
 	// The amount of time in seconds that should elapse between disk usage checks
 	// run by the daemon. Setting a higher number can result in better IO performance
@@ -55,35 +33,142 @@ type Configuration struct {
 
 	// Defines internal throttling configurations for server processes to prevent
 	// someone from running an endless loop that spams data to logs.
-	Throttles ConsoleThrottles
+	Throttles struct {
+		// The number of data overage warnings (inclusive) that can accumulate
+		// before a process is terminated.
+		KillAtCount int `default:"5" yaml:"kill_at_count"`
+
+		// The number of seconds that must elapse before the internal counter
+		// begins decrementing warnings assigned to a process that is outputting
+		// too much data.
+		DecaySeconds int `default:"10" yaml:"decay"`
+
+		// The total number of bytes allowed to be output by a server process
+		// per interval.
+		BytesPerInterval int `default:"4096" yaml:"bytes"`
+
+		// The amount of time that should lapse between data output throttle
+		// checks. This should be defined in milliseconds.
+		CheckInterval int `defauly:"100" yaml:"check_interval"`
+	}
 
 	// The location where the panel is running that this daemon should connect to
 	// to collect data and send events.
-	PanelLocation string `json:"remote" yaml:"remote"`
+	PanelLocation string `yaml:"remote"`
 
-	// AllowedMounts is a list of allowed host-system mount points.
-	// This is required to have the "Server Mounts" feature work properly.
-	AllowedMounts []string `json:"allowed_mounts" yaml:"allowed_mounts"`
+	// The token used when performing operations. Requests to this instance must
+	// validate aganist it.
+	AuthenticationToken string `yaml:"token"`
+}
 
-	// AllowedOrigins is a list of allowed request origins.
-	// The Panel URL is automatically allowed, this is only needed for adding
-	// additional origins.
-	AllowedOrigins []string `json:"allowed_origins" yaml:"allowed_origins"`
+// Defines basic system configuration settings.
+type SystemConfiguration struct {
+	// Directory where the server data is stored at.
+	Data string `default:"/srv/daemon-data" yaml:"data"`
+
+	// The user that should own all of the server files, and be used for containers.
+	Username string `default:"pterodactyl" yaml:"username"`
+
+	// Definitions for the user that gets created to ensure that we can quickly access
+	// this information without constantly having to do a system lookup.
+	User struct {
+		Uid int
+		Gid int
+	}
+
+	// Determines wether or not server data should be synced when the Daemon is started.
+	// If set to false, data will only be synced when a server process is started, or
+	// detected as started when booting.
+	SyncServersOnBoot bool `default:"true" yaml:"sync_servers_on_boot"`
+
+	// The path to the system's timezone file that will be mounted into running Docker containers.
+	TimezonePath string `yaml:"timezone_path"`
+
+	// Determines if permissions for a server should be set automatically on
+	// daemon boot. This can take a long time on systems with many servers, or on
+	// systems with servers containing thousands of files.
+	//
+	// Setting this to true by default helps us avoid a lot of support requests
+	// from people that keep trying to move files around as a root user leading
+	// to server permission issues.
+	//
+	// In production and heavy use environments where boot speed is essential,
+	// this should be set to false as servers will self-correct permissions on
+	// boot anyways.
+	SetPermissionsOnBoot bool `default:"true" yaml:"set_permissions_on_boot"`
+
+	// Determines if Wings should detect a server that stops with a normal exit code of
+	// "0" as being crashed if the process stopped without any Wings interaction. E.g.
+	// the user did not press the stop button, but the process stopped cleanly.
+	DetectCleanExitAsCrash bool `default:"true" yaml:"detect_clean_exit_as_crash"`
+
+	Sftp *SftpConfiguration `yaml:"sftp"`
 }
 
 // Defines the configuration of the internal SFTP server.
 type SftpConfiguration struct {
+	// If set to false, the internal SFTP server will not be booted and you will need
+	// to run the SFTP server independent of this program.
+	UseInternalSystem bool `default:"true" yaml:"use_internal"`
 	// If set to true disk checking will not be performed. This will prevent the SFTP
 	// server from checking the total size of a directory when uploading files.
 	DisableDiskChecking bool `default:"false" yaml:"disable_disk_checking"`
 	// The bind address of the SFTP server.
-	Address string `default:"0.0.0.0" json:"bind_address" yaml:"bind_address"`
+	Address string `default:"0.0.0.0" yaml:"bind_address"`
 	// The bind port of the SFTP server.
-	Port int `default:"2022" json:"bind_port" yaml:"bind_port"`
+	Port int `default:"2022" yaml:"bind_port"`
 	// If set to true, no write actions will be allowed on the SFTP server.
 	ReadOnly bool `default:"false" yaml:"read_only"`
 }
 
+type dockerNetworkInterfaces struct {
+	V4 struct {
+		Subnet  string `default:"172.18.0.0/16"`
+		Gateway string `default:"172.18.0.1"`
+	}
+
+	V6 struct {
+		Subnet  string `default:"fdba:17c8:6c94::/64"`
+		Gateway string `default:"fdba:17c8:6c94::1011"`
+	}
+}
+
+type DockerNetworkConfiguration struct {
+	// The interface that should be used to create the network. Must not conflict
+	// with any other interfaces in use by Docker or on the system.
+	Interface string `default:"172.18.0.1"`
+
+	// The name of the network to use. If this network already exists it will not
+	// be created. If it is not found, a new network will be created using the interface
+	// defined.
+	Name       string                  `default:"pterodactyl_nw"`
+	ISPN       bool                    `default:"false" yaml:"ispn"`
+	Driver     string                  `default:"bridge"`
+	IsInternal bool                    `default:"false" yaml:"is_internal"`
+	EnableICC  bool                    `default:"true" yaml:"enable_icc"`
+	Interfaces dockerNetworkInterfaces `yaml:"interfaces"`
+}
+
+// Defines the docker configuration used by the daemon when interacting with
+// containers and networks on the system.
+type DockerConfiguration struct {
+	// Network configuration that should be used when creating a new network
+	// for containers run through the daemon.
+	Network DockerNetworkConfiguration `yaml:"network"`
+
+	// If true, container images will be updated when a server starts if there
+	// is an update available. If false the daemon will not attempt updates and will
+	// defer to the host system to manage image updates.
+	UpdateImages bool `default:"true" yaml:"update_images"`
+
+	// The location of the Docker socket.
+	Socket string `default:"/var/run/docker.sock"`
+
+	// Defines the location of the timezone file on the host system that should
+	// be mounted into the created containers so that they all use the same time.
+	TimezonePath string `yaml:"timezone_path"`
+}
+
 // Defines the configuration for the internal API that is exposed by the
 // daemon webserver.
 type ApiConfiguration struct {
@@ -96,12 +181,12 @@ type ApiConfiguration struct {
 	// SSL configuration for the daemon.
 	Ssl struct {
 		Enabled         bool   `default:"false"`
-		CertificateFile string `json:"cert" yaml:"cert"`
-		KeyFile         string `json:"key" yaml:"key"`
+		CertificateFile string `yaml:"cert"`
+		KeyFile         string `yaml:"key"`
 	}
 
 	// The maximum size for files uploaded through the Panel in bytes.
-	UploadLimit int `default:"100" json:"upload_limit" yaml:"upload_limit"`
+	UploadLimit int `default:"100" yaml:"upload_limit"`
 }
 
 // Reads the configuration from the provided file and returns the configuration
@@ -114,15 +199,12 @@ func ReadConfiguration(path string) (*Configuration, error) {
 
 	c := new(Configuration)
 	// Configures the default values for many of the configuration options present
-	// in the structs. Values set in the configuration file take priority over the
+	// in the structs. Valkues set in the configuration file take priority over the
 	// default values.
 	if err := defaults.Set(c); err != nil {
 		return nil, err
 	}
 
-	// Track the location where we created this configuration.
-	c.unsafeSetPath(path)
-
 	// Replace environment variables within the configuration file with their
 	// values from the host system.
 	b = []byte(os.ExpandEnv(string(b)))
@@ -134,76 +216,23 @@ func ReadConfiguration(path string) (*Configuration, error) {
 	return c, nil
 }
 
-var mu sync.RWMutex
-
 var _config *Configuration
-var _jwtAlgo *jwt.HMACSHA
 var _debugViaFlag bool
 
-// Set the global configuration instance. This is a blocking operation such that
-// anything trying to set a different configuration value, or read the configuration
-// will be paused until it is complete.
+// Set the global configuration instance.
 func Set(c *Configuration) {
-	mu.Lock()
-
-	if _config == nil || _config.AuthenticationToken != c.AuthenticationToken {
-		_jwtAlgo = jwt.NewHS256([]byte(c.AuthenticationToken))
-	}
-
 	_config = c
-	mu.Unlock()
 }
 
 func SetDebugViaFlag(d bool) {
 	_debugViaFlag = d
 }
 
-// Get the global configuration instance. This is a read-safe operation that will block
-// if the configuration is presently being modified.
+// Get the global configuration instance.
 func Get() *Configuration {
-	mu.RLock()
-	defer mu.RUnlock()
-
 	return _config
 }
 
-// Returns the in-memory JWT algorithm.
-func GetJwtAlgorithm() *jwt.HMACSHA {
-	mu.RLock()
-	defer mu.RUnlock()
-
-	return _jwtAlgo
-}
-
-// Create a new struct and set the path where it should be stored.
-func NewFromPath(path string) (*Configuration, error) {
-	c := new(Configuration)
-	if err := defaults.Set(c); err != nil {
-		return c, errors.WithStack(err)
-	}
-
-	c.unsafeSetPath(path)
-
-	return c, nil
-}
-
-// Sets the path where the configuration file is located on the server. This function should
-// not be called except by processes that are generating the configuration such as the configration
-// command shipped with this software.
-func (c *Configuration) unsafeSetPath(path string) {
-	c.Lock()
-	c.path = path
-	c.Unlock()
-}
-
-// Returns the path for this configuration file.
-func (c *Configuration) GetPath() string {
-	c.RLock()
-	defer c.RUnlock()
-
-	return c.path
-}
-
 // Ensures that the Pterodactyl core user exists on the system. This user will be the
 // owner of all data in the root data directory and is used as the user within containers.
 //
@@ -217,35 +246,35 @@ func (c *Configuration) EnsurePterodactylUser() (*user.User, error) {
 	if err == nil {
 		return u, c.setSystemUser(u)
 	} else if _, ok := err.(user.UnknownUserError); !ok {
-		return nil, errors.WithStack(err)
+		return nil, err
 	}
 
 	sysName, err := getSystemName()
 	if err != nil {
-		return nil, errors.WithStack(err)
+		return nil, err
 	}
 
 	var command = fmt.Sprintf("useradd --system --no-create-home --shell /bin/false %s", c.System.Username)
 
 	// Alpine Linux is the only OS we currently support that doesn't work with the useradd command, so
 	// in those cases we just modify the command a bit to work as expected.
-	if strings.HasPrefix(sysName, "alpine") {
+	if strings.HasPrefix(sysName, "Alpine") {
 		command = fmt.Sprintf("adduser -S -D -H -G %[1]s -s /bin/false %[1]s", c.System.Username)
 
 		// We have to create the group first on Alpine, so do that here before continuing on
 		// to the user creation process.
-		if _, err := exec.Command("addgroup", "-S", c.System.Username).Output(); err != nil {
-			return nil, errors.WithStack(err)
+		if _, err := exec.Command("addgroup", "-s", c.System.Username).Output(); err != nil {
+			return nil, err
 		}
 	}
 
 	split := strings.Split(command, " ")
 	if _, err := exec.Command(split[0], split[1:]...).Output(); err != nil {
-		return nil, errors.WithStack(err)
+		return nil, err
 	}
 
 	if u, err := user.Lookup(c.System.Username); err != nil {
-		return nil, errors.WithStack(err)
+		return nil, err
 	} else {
 		return u, c.setSystemUser(u)
 	}
@@ -257,22 +286,74 @@ func (c *Configuration) setSystemUser(u *user.User) error {
 	uid, _ := strconv.Atoi(u.Uid)
 	gid, _ := strconv.Atoi(u.Gid)
 
-	c.Lock()
 	c.System.Username = u.Username
 	c.System.User.Uid = uid
 	c.System.User.Gid = gid
-	c.Unlock()
 
 	return c.WriteToDisk()
 }
 
+// Ensures that the configured data directory has the correct permissions assigned to
+// all of the files and folders within.
+func (c *Configuration) EnsureFilePermissions() error {
+	// Don't run this unless it is configured to be run. On large system this can often slow
+	// things down dramatically during the boot process.
+	if !c.System.SetPermissionsOnBoot {
+		return nil
+	}
+
+	r := regexp.MustCompile("^[a-f0-9]{8}-[a-f0-9]{4}-4[a-f0-9]{3}-[89ab][a-f0-9]{3}-[a-f0-9]{12}$")
+
+	files, err := ioutil.ReadDir(c.System.Data)
+	if err != nil {
+		return err
+	}
+
+	su, err := user.Lookup(c.System.Username)
+	if err != nil {
+		return err
+	}
+
+	wg := new(sync.WaitGroup)
+
+	for _, file := range files {
+		wg.Add(1)
+
+		// Asynchronously run through the list of files and folders in the data directory. If
+		// the item is not a folder, or is not a folder that matches the expected UUIDv4 format
+		// skip over it.
+		//
+		// If we do have a positive match, run a chown aganist the directory.
+		go func(f os.FileInfo) {
+			defer wg.Done()
+
+			if !f.IsDir() || !r.MatchString(f.Name()) {
+				return
+			}
+
+			uid, _ := strconv.Atoi(su.Uid)
+			gid, _ := strconv.Atoi(su.Gid)
+
+			if err := os.Chown(path.Join(c.System.Data, f.Name()), uid, gid); err != nil {
+				zap.S().Warnw("failed to chown server directory", zap.String("directory", f.Name()), zap.Error(err))
+			}
+		}(file)
+	}
+
+	wg.Wait()
+
+	return nil
+}
+
 // Writes the configuration to the disk as a blocking operation by obtaining an exclusive
 // lock on the file. This prevents something else from writing at the exact same time and
 // leading to bad data conditions.
 func (c *Configuration) WriteToDisk() error {
-	// Obtain an exclusive write against the configuration file.
-	c.writeLock.Lock()
-	defer c.writeLock.Unlock()
+	f, err := os.OpenFile("config.yml", os.O_WRONLY, os.ModeExclusive)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
 
 	ccopy := *c
 	// If debugging is set with the flag, don't save that to the configuration file, otherwise
@@ -281,17 +362,13 @@ func (c *Configuration) WriteToDisk() error {
 		ccopy.Debug = false
 	}
 
-	if c.path == "" {
-		return errors.New("cannot write configuration, no path defined in struct")
-	}
-
 	b, err := yaml.Marshal(&ccopy)
 	if err != nil {
-		return errors.WithStack(err)
+		return err
 	}
 
-	if err := ioutil.WriteFile(c.GetPath(), b, 0644); err != nil {
-		return errors.WithStack(err)
+	if _, err := f.Write(b); err != nil {
+		return err
 	}
 
 	return nil
@@ -299,10 +376,12 @@ func (c *Configuration) WriteToDisk() error {
 
 // Gets the system release name.
 func getSystemName() (string, error) {
-	// use osrelease to get release version and ID
-	if release, err := osrelease.Read(); err != nil {
-		return "", errors.WithStack(err)
-	} else {
-		return release["ID"], nil
+	cmd := exec.Command("lsb_release", "-is")
+
+	b, err := cmd.Output()
+	if err != nil {
+		return "", err
 	}
+
+	return string(b), nil
 }

config/config_docker.go

@@ -1,92 +0,0 @@
-package config
-
-import (
-	"encoding/base64"
-	"encoding/json"
-	"github.com/docker/docker/api/types"
-	"github.com/pkg/errors"
-)
-
-type dockerNetworkInterfaces struct {
-	V4 struct {
-		Subnet  string `default:"172.18.0.0/16"`
-		Gateway string `default:"172.18.0.1"`
-	}
-
-	V6 struct {
-		Subnet  string `default:"fdba:17c8:6c94::/64"`
-		Gateway string `default:"fdba:17c8:6c94::1011"`
-	}
-}
-
-type DockerNetworkConfiguration struct {
-	// The interface that should be used to create the network. Must not conflict
-	// with any other interfaces in use by Docker or on the system.
-	Interface string `default:"172.18.0.1" json:"interface" yaml:"interface"`
-
-	// The DNS settings for containers.
-	Dns []string `default:"[\"1.1.1.1\", \"1.0.0.1\"]"`
-
-	// The name of the network to use. If this network already exists it will not
-	// be created. If it is not found, a new network will be created using the interface
-	// defined.
-	Name       string                  `default:"pterodactyl_nw"`
-	ISPN       bool                    `default:"false" yaml:"ispn"`
-	Driver     string                  `default:"bridge"`
-	Mode       string                  `default:"pterodactyl_nw" yaml:"network_mode"`
-	IsInternal bool                    `default:"false" yaml:"is_internal"`
-	EnableICC  bool                    `default:"true" yaml:"enable_icc"`
-	Interfaces dockerNetworkInterfaces `yaml:"interfaces"`
-}
-
-// Defines the docker configuration used by the daemon when interacting with
-// containers and networks on the system.
-type DockerConfiguration struct {
-	// Network configuration that should be used when creating a new network
-	// for containers run through the daemon.
-	Network DockerNetworkConfiguration `json:"network" yaml:"network"`
-
-	// Domainname is the Docker domainname for all containers.
-	Domainname string `default:"" json:"domainname" yaml:"domainname"`
-
-	// If true, container images will be updated when a server starts if there
-	// is an update available. If false the daemon will not attempt updates and will
-	// defer to the host system to manage image updates.
-	UpdateImages bool `default:"true" json:"update_images" yaml:"update_images"`
-
-	// The location of the Docker socket.
-	Socket string `default:"/var/run/docker.sock" json:"socket" yaml:"socket"`
-
-	// Defines the location of the timezone file on the host system that should
-	// be mounted into the created containers so that they all use the same time.
-	TimezonePath string `default:"/etc/timezone" json:"timezone_path" yaml:"timezone_path"`
-
-	// Registries .
-	Registries map[string]RegistryConfiguration `json:"registries" yaml:"registries"`
-
-	// The size of the /tmp directory when mounted into a container. Please be aware that Docker
-	// utilizes host memory for this value, and that we do not keep track of the space used here
-	// so avoid allocating too much to a server.
-	TmpfsSize uint `default:"100" json:"tmpfs_size" yaml:"tmpfs_size"`
-}
-
-// RegistryConfiguration .
-type RegistryConfiguration struct {
-	Username string `yaml:"username"`
-	Password string `yaml:"password"`
-}
-
-// Base64 .
-func (c RegistryConfiguration) Base64() (string, error) {
-	authConfig := types.AuthConfig{
-		Username: c.Username,
-		Password: c.Password,
-	}
-
-	b, err := json.Marshal(authConfig)
-	if err != nil {
-		return "", errors.WithStack(err)
-	}
-
-	return base64.URLEncoding.EncodeToString(b), nil
-}

config/config_system.go

@@ -1,78 +0,0 @@
-package config
-
-import (
-	"github.com/apex/log"
-	"os"
-	"path"
-)
-
-// Defines basic system configuration settings.
-type SystemConfiguration struct {
-	// The root directory where all of the pterodactyl data is stored at.
-	RootDirectory string `default:"/var/lib/pterodactyl" yaml:"root_directory"`
-
-	// Directory where logs for server installations and other wings events are logged.
-	LogDirectory string `default:"/var/log/pterodactyl" yaml:"log_directory"`
-
-	// Directory where the server data is stored at.
-	Data string `default:"/var/lib/pterodactyl/volumes" yaml:"data"`
-
-	// Directory where server archives for transferring will be stored.
-	ArchiveDirectory string `default:"/var/lib/pterodactyl/archives" yaml:"archive_directory"`
-
-	// Directory where local backups will be stored on the machine.
-	BackupDirectory string `default:"/var/lib/pterodactyl/backups" yaml:"backup_directory"`
-
-	// The user that should own all of the server files, and be used for containers.
-	Username string `default:"pterodactyl" yaml:"username"`
-
-	// Definitions for the user that gets created to ensure that we can quickly access
-	// this information without constantly having to do a system lookup.
-	User struct {
-		Uid int
-		Gid int
-	}
-
-	// Determines if Wings should detect a server that stops with a normal exit code of
-	// "0" as being crashed if the process stopped without any Wings interaction. E.g.
-	// the user did not press the stop button, but the process stopped cleanly.
-	DetectCleanExitAsCrash bool `default:"true" yaml:"detect_clean_exit_as_crash"`
-
-	Sftp SftpConfiguration `yaml:"sftp"`
-}
-
-// Ensures that all of the system directories exist on the system. These directories are
-// created so that only the owner can read the data, and no other users.
-func (sc *SystemConfiguration) ConfigureDirectories() error {
-	log.WithField("path", sc.RootDirectory).Debug("ensuring root data directory exists")
-	if err := os.MkdirAll(sc.RootDirectory, 0700); err != nil {
-		return err
-	}
-
-	log.WithField("path", sc.Data).Debug("ensuring server data directory exists")
-	if err := os.MkdirAll(sc.Data, 0700); err != nil {
-		return err
-	}
-
-	log.WithField("path", sc.ArchiveDirectory).Debug("ensuring archive data directory exists")
-	if err := os.MkdirAll(sc.ArchiveDirectory, 0700); err != nil {
-		return err
-	}
-
-	log.WithField("path", sc.BackupDirectory).Debug("ensuring backup data directory exists")
-	if err := os.MkdirAll(sc.BackupDirectory, 0700); err != nil {
-		return err
-	}
-
-	return nil
-}
-
-// Returns the location of the JSON file that tracks server states.
-func (sc *SystemConfiguration) GetStatesPath() string {
-	return path.Join(sc.RootDirectory, "states.json")
-}
-
-// Returns the location of the JSON file that tracks server states.
-func (sc *SystemConfiguration) GetInstallLogPath() string {
-	return path.Join(sc.LogDirectory, "install/")
-}

config/config_throttles.go

@@ -1,23 +0,0 @@
-package config
-
-type ConsoleThrottles struct {
-	// Wether or not the throttler is enabled for this instance.
-	Enabled bool `json:"enabled" yaml:"enabled" default:"true"`
-
-	// The total number of throttle activations that must accumulate before a server is
-	// forcibly stopped for violating these limits.
-	KillAtCount uint64 `json:"kill_at_count" yaml:"kill_at_count" default:"5"`
-
-	// The amount of time in milliseconds that a server process must go through without
-	// triggering an output warning before the throttle activation count begins decreasing.
-	// This time is measured in milliseconds.
-	Decay uint64 `json:"decay" yaml:"decay" default:"10000"`
-
-	// The total number of lines that can be output in a given CheckInterval period before
-	// a warning is triggered and counted against the server.
-	Lines uint64 `json:"lines" yaml:"lines" default:"1000"`
-
-	// The amount of time that must pass between intervals before the count is reset. This
-	// value is in milliseconds.
-	CheckInterval uint64 `json:"check_interval" yaml:"check_interval" default:"100"`
-}

const.go

@@ -0,0 +1,29 @@
+package main
+
+import "os"
+
+const (
+	Version = "1.0.0-alpha.1"
+
+	// DefaultFilePerms are the file perms used for created files.
+	DefaultFilePerms os.FileMode = 0644
+
+	// DefaultFolderPerms are the file perms used for created folders.
+	DefaultFolderPerms os.FileMode = 0755
+
+	// ServersPath is the path of the servers within the configured DataPath.
+	ServersPath = "servers"
+
+	// ServerConfigFile is the filename of the server config file.
+	ServerConfigFile = "server.json"
+
+	// ServerDataPath is the path of the data of a single server.
+	ServerDataPath = "data"
+
+	// DockerContainerPrefix is the prefix used for naming Docker containers.
+	// It's also used to prefix the hostnames of the docker containers.
+	DockerContainerPrefix = "ptdl-"
+
+	// WSMaxMessages is the maximum number of messages that are sent in one transfer.
+	WSMaxMessages = 10
+)

data/.gitignore

@@ -0,0 +1 @@
+servers/*.yml

docker-compose.example.yml

@@ -1,26 +0,0 @@
-version: '3'
-services:
-  daemon:
-    build: .
-    restart: always
-    hostname: daemon
-    ports:
-      - "8080:8080"
-      - "2022:2022"
-    tty: true
-    environment:
-      - "DEBUG=false"
-    volumes:
-      - "/var/run/docker.sock:/var/run/docker.sock"
-      - "/var/lib/docker/containers/:/var/lib/docker/containers/"
-      - "/var/lib/pterodactyl/:/var/lib/pterodactyl/"
-      - "/srv/daemon-data/:/srv/daemon-data/"
-      - "/tmp/pterodactyl/:/tmp/pterodactyl/"
-      - "/etc/timezone:/etc/timezone:ro"
-      ## Required for ssl if you user let's encrypt. uncomment to use.
-      ## - "/etc/letsencrypt/:/etc/letsencrypt/"
-networks:
-  default:
-    ipam:
-      config:
-        - subnet: 172.21.0.0/16

environment.go

@@ -1,17 +1,16 @@
-package environment
+package main
 
 import (
 	"context"
-	"github.com/apex/log"
-
 	"github.com/docker/docker/api/types"
 	"github.com/docker/docker/api/types/network"
 	"github.com/docker/docker/client"
 	"github.com/pterodactyl/wings/config"
+	"go.uber.org/zap"
 )
 
 // Configures the required network for the docker environment.
-func ConfigureDocker(c *config.DockerConfiguration) error {
+func ConfigureDockerEnvironment(c *config.DockerConfiguration) error {
 	// Ensure the required docker network exists on the system.
 	cli, err := client.NewClientWithOpts(client.FromEnv)
 	if err != nil {
@@ -20,10 +19,10 @@ func ConfigureDocker(c *config.DockerConfiguration) error {
 
 	resource, err := cli.NetworkInspect(context.Background(), c.Network.Name, types.NetworkInspectOptions{})
 	if err != nil && client.IsErrNotFound(err) {
-		log.Info("creating missing pterodactyl0 interface, this could take a few seconds...")
+		zap.S().Infow("creating missing pterodactyl0 interface, this could take a few seconds...")
 		return createDockerNetwork(cli, c)
 	} else if err != nil {
-		log.WithField("error", err).Fatal("failed to create required docker network for containers")
+		zap.S().Fatalw("failed to create required docker network for containers", zap.Error(err))
 	}
 
 	switch resource.Driver {

environment/allocations.go

@@ -1,67 +0,0 @@
-package environment
-
-import (
-	"fmt"
-	"github.com/docker/go-connections/nat"
-	"strconv"
-)
-
-// Defines the allocations available for a given server. When using the Docker environment
-// driver these correspond to mappings for the container that allow external connections.
-type Allocations struct {
-	// Defines the default allocation that should be used for this server. This is
-	// what will be used for {SERVER_IP} and {SERVER_PORT} when modifying configuration
-	// files or the startup arguments for a server.
-	DefaultMapping struct {
-		Ip   string `json:"ip"`
-		Port int    `json:"port"`
-	} `json:"default"`
-
-	// Mappings contains all of the ports that should be assigned to a given server
-	// attached to the IP they correspond to.
-	Mappings map[string][]int `json:"mappings"`
-}
-
-// Converts the server allocation mappings into a format that can be understood by Docker. While
-// we do strive to support multiple environments, using Docker's standardized format for the
-// bindings certainly makes life a little easier for managing things.
-func (a *Allocations) Bindings() nat.PortMap {
-	var out = nat.PortMap{}
-
-	for ip, ports := range a.Mappings {
-		for _, port := range ports {
-			// Skip over invalid ports.
-			if port < 1 || port > 65535 {
-				continue
-			}
-
-			binding := []nat.PortBinding{
-				{
-					HostIP:   ip,
-					HostPort: strconv.Itoa(port),
-				},
-			}
-
-			out[nat.Port(fmt.Sprintf("%d/tcp", port))] = binding
-			out[nat.Port(fmt.Sprintf("%d/udp", port))] = binding
-		}
-	}
-
-	return out
-}
-
-// Converts the server allocation mappings into a PortSet that can be understood
-// by Docker. This formatting is slightly different than "Bindings" as it should
-// return an empty struct rather than a binding.
-//
-// To accomplish this, we'll just get the values from "Bindings" and then set them
-// to empty structs. Because why not.
-func (a *Allocations) Exposed() nat.PortSet {
-	var out = nat.PortSet{}
-
-	for port := range a.Bindings() {
-		out[port] = struct{}{}
-	}
-
-	return out
-}

environment/config.go

@@ -1,84 +0,0 @@
-package environment
-
-import (
-	"fmt"
-	"strings"
-	"sync"
-	"time"
-)
-
-type configurationSettings struct {
-	Mounts      []Mount
-	Allocations Allocations
-	Limits      Limits
-	Variables   Variables
-}
-
-// Defines the actual configuration struct for the environment with all of the settings
-// defined within it.
-type Configuration struct {
-	mu sync.RWMutex
-
-	settings configurationSettings
-}
-
-func NewConfiguration(m []Mount, a Allocations, l Limits, v Variables) *Configuration {
-	return &Configuration{
-		settings: configurationSettings{
-			Mounts:      m,
-			Allocations: a,
-			Limits:      l,
-			Variables:   v,
-		},
-	}
-}
-
-func (c *Configuration) Limits() Limits {
-	c.mu.RLock()
-	defer c.mu.RUnlock()
-
-	return c.settings.Limits
-}
-
-func (c *Configuration) Allocations() Allocations {
-	c.mu.RLock()
-	defer c.mu.RUnlock()
-
-	return c.settings.Allocations
-}
-
-func (c *Configuration) Mounts() []Mount {
-	c.mu.RLock()
-	defer c.mu.RUnlock()
-
-	return c.settings.Mounts
-}
-
-// Returns all of the environment variables that should be assigned to a running
-// server instance.
-func (c *Configuration) EnvironmentVariables() []string {
-	c.mu.RLock()
-	c.mu.RUnlock()
-
-	zone, _ := time.Now().In(time.Local).Zone()
-
-	var out = []string{
-		fmt.Sprintf("TZ=%s", zone),
-		fmt.Sprintf("SERVER_MEMORY=%d", c.settings.Limits.MemoryLimit),
-		fmt.Sprintf("SERVER_IP=%s", c.settings.Allocations.DefaultMapping.Ip),
-		fmt.Sprintf("SERVER_PORT=%d", c.settings.Allocations.DefaultMapping.Port),
-	}
-
-eloop:
-	for k := range c.settings.Variables {
-		for _, e := range out {
-			if strings.HasPrefix(e, strings.ToUpper(k)) {
-				continue eloop
-			}
-		}
-
-		out = append(out, fmt.Sprintf("%s=%s", strings.ToUpper(k), c.settings.Variables.Get(k)))
-	}
-
-	return out
-}

environment/docker/console.go

@@ -1,20 +0,0 @@
-package docker
-
-import "io"
-
-type Console struct {
-	HandlerFunc *func(string)
-}
-
-var _ io.Writer = Console{}
-
-func (c Console) Write(b []byte) (int, error) {
-	if c.HandlerFunc != nil {
-		l := make([]byte, len(b))
-		copy(l, b)
-
-		(*c.HandlerFunc)(string(l))
-	}
-
-	return len(b), nil
-}

environment/docker/container.go

@@ -1,376 +0,0 @@
-package docker
-
-import (
-	"bufio"
-	"context"
-	"fmt"
-	"github.com/apex/log"
-	"github.com/docker/docker/api/types"
-	"github.com/docker/docker/api/types/container"
-	"github.com/docker/docker/api/types/mount"
-	"github.com/docker/docker/client"
-	"github.com/docker/docker/daemon/logger/jsonfilelog"
-	"github.com/pkg/errors"
-	"github.com/pterodactyl/wings/config"
-	"github.com/pterodactyl/wings/environment"
-	"io"
-	"strconv"
-	"strings"
-	"time"
-)
-
-// Attaches to the docker container itself and ensures that we can pipe data in and out
-// of the process stream. This should not be used for reading console data as you *will*
-// miss important output at the beginning because of the time delay with attaching to the
-// output.
-func (e *Environment) Attach() error {
-	if e.IsAttached() {
-		return nil
-	}
-
-	if err := e.followOutput(); err != nil {
-		return errors.WithStack(err)
-	}
-
-	opts := types.ContainerAttachOptions{
-		Stdin:  true,
-		Stdout: true,
-		Stderr: true,
-		Stream: true,
-	}
-
-	// Set the stream again with the container.
-	if st, err := e.client.ContainerAttach(context.Background(), e.Id, opts); err != nil {
-		return errors.WithStack(err)
-	} else {
-		e.SetStream(&st)
-	}
-
-	c := new(Console)
-	go func(console *Console) {
-		ctx, cancel := context.WithCancel(context.Background())
-
-		defer cancel()
-		defer e.stream.Close()
-		defer func() {
-			e.setState(environment.ProcessOfflineState)
-			e.SetStream(nil)
-		}()
-
-		// Poll resources in a seperate thread since this will block the copy call below
-		// from being reached until it is completed if not run in a seperate process. However,
-		// we still want it to be stopped when the copy operation below is finished running which
-		// indicates that the container is no longer running.
-		go e.pollResources(ctx)
-
-		// Stream the reader output to the console which will then fire off events and handle console
-		// throttling and sending the output to the user.
-		_, _ = io.Copy(console, e.stream.Reader)
-	}(c)
-
-	return nil
-}
-
-func (e *Environment) resources() container.Resources {
-	l := e.Configuration.Limits()
-
-	return container.Resources{
-		Memory:            l.BoundedMemoryLimit(),
-		MemoryReservation: l.MemoryLimit * 1_000_000,
-		MemorySwap:        l.ConvertedSwap(),
-		CPUQuota:          l.ConvertedCpuLimit(),
-		CPUPeriod:         100_000,
-		CPUShares:         1024,
-		BlkioWeight:       l.IoWeight,
-		OomKillDisable:    &l.OOMDisabled,
-		CpusetCpus:        l.Threads,
-	}
-}
-
-// Performs an in-place update of the Docker container's resource limits without actually
-// making any changes to the operational state of the container. This allows memory, cpu,
-// and IO limitations to be adjusted on the fly for individual instances.
-func (e *Environment) InSituUpdate() error {
-	if _, err := e.client.ContainerInspect(context.Background(), e.Id); err != nil {
-		// If the container doesn't exist for some reason there really isn't anything
-		// we can do to fix that in this process (it doesn't make sense at least). In those
-		// cases just return without doing anything since we still want to save the configuration
-		// to the disk.
-		//
-		// We'll let a boot process make modifications to the container if needed at this point.
-		if client.IsErrNotFound(err) {
-			return nil
-		}
-
-		return errors.WithStack(err)
-	}
-
-	u := container.UpdateConfig{
-		Resources: e.resources(),
-	}
-
-	ctx, cancel := context.WithTimeout(context.Background(), time.Second*10)
-	defer cancel()
-	if _, err := e.client.ContainerUpdate(ctx, e.Id, u); err != nil {
-		return errors.WithStack(err)
-	}
-
-	return nil
-}
-
-// Creates a new container for the server using all of the data that is currently
-// available for it. If the container already exists it will be returnee.
-func (e *Environment) Create() error {
-	// If the container already exists don't hit the user with an error, just return
-	// the current information about it which is what we would do when creating the
-	// container anyways.
-	if _, err := e.client.ContainerInspect(context.Background(), e.Id); err == nil {
-		return nil
-	} else if !client.IsErrNotFound(err) {
-		return errors.WithStack(err)
-	}
-
-	// Try to pull the requested image before creating the container.
-	if err := e.ensureImageExists(e.meta.Image); err != nil {
-		return errors.WithStack(err)
-	}
-
-	a := e.Configuration.Allocations()
-
-	conf := &container.Config{
-		Hostname:     e.Id,
-		Domainname:   config.Get().Docker.Domainname,
-		User:         strconv.Itoa(config.Get().System.User.Uid),
-		AttachStdin:  true,
-		AttachStdout: true,
-		AttachStderr: true,
-		OpenStdin:    true,
-		Tty:          true,
-		ExposedPorts: a.Exposed(),
-		Image:        e.meta.Image,
-		Env:          e.variables(),
-		Labels: map[string]string{
-			"Service":       "Pterodactyl",
-			"ContainerType": "server_process",
-		},
-	}
-
-	tmpfsSize := strconv.Itoa(int(config.Get().Docker.TmpfsSize))
-
-	hostConf := &container.HostConfig{
-		PortBindings: a.Bindings(),
-
-		// Configure the mounts for this container. First mount the server data directory
-		// into the container as a r/w bine.
-		Mounts: e.convertMounts(),
-
-		// Configure the /tmp folder mapping in containers. This is necessary for some
-		// games that need to make use of it for downloads and other installation processes.
-		Tmpfs: map[string]string{
-			"/tmp": "rw,exec,nosuid,size="+tmpfsSize+"M",
-		},
-
-		// Define resource limits for the container based on the data passed through
-		// from the Panel.
-		Resources: e.resources(),
-
-		DNS: config.Get().Docker.Network.Dns,
-
-		// Configure logging for the container to make it easier on the Daemon to grab
-		// the server output. Ensure that we don't use too much space on the host machine
-		// since we only need it for the last few hundred lines of output and don't care
-		// about anything else in it.
-		LogConfig: container.LogConfig{
-			Type: jsonfilelog.Name,
-			Config: map[string]string{
-				"max-size": "5m",
-				"max-file": "1",
-			},
-		},
-
-		SecurityOpt:    []string{"no-new-privileges"},
-		ReadonlyRootfs: true,
-		CapDrop: []string{
-			"setpcap", "mknod", "audit_write", "net_raw", "dac_override",
-			"fowner", "fsetid", "net_bind_service", "sys_chroot", "setfcap",
-		},
-		NetworkMode: container.NetworkMode(config.Get().Docker.Network.Mode),
-	}
-
-	if _, err := e.client.ContainerCreate(context.Background(), conf, hostConf, nil, e.Id); err != nil {
-		return errors.WithStack(err)
-	}
-
-	return nil
-}
-
-func (e *Environment) variables() []string {
-	v := e.Configuration.EnvironmentVariables()
-
-	return append(v, fmt.Sprintf("STARTUP=%s", e.meta.Invocation))
-}
-
-func (e *Environment) convertMounts() []mount.Mount {
-	var out []mount.Mount
-
-	for _, m := range e.Configuration.Mounts() {
-		out = append(out, mount.Mount{
-			Type:     mount.TypeBind,
-			Source:   m.Source,
-			Target:   m.Target,
-			ReadOnly: m.ReadOnly,
-		})
-	}
-
-	return out
-}
-
-// Remove the Docker container from the machine. If the container is currently running
-// it will be forcibly stopped by Docker.
-func (e *Environment) Destroy() error {
-	// We set it to stopping than offline to prevent crash detection from being triggeree.
-	e.setState(environment.ProcessStoppingState)
-
-	err := e.client.ContainerRemove(context.Background(), e.Id, types.ContainerRemoveOptions{
-		RemoveVolumes: true,
-		RemoveLinks:   false,
-		Force:         true,
-	})
-
-	// Don't trigger a destroy failure if we try to delete a container that does not
-	// exist on the system. We're just a step ahead of ourselves in that case.
-	//
-	// @see https://github.com/pterodactyl/panel/issues/2001
-	if err != nil && client.IsErrNotFound(err) {
-		return nil
-	}
-
-	e.setState(environment.ProcessOfflineState)
-
-	return err
-}
-
-// Attaches to the log for the container. This avoids us missing cruicial output that
-// happens in the split seconds before the code moves from 'Starting' to 'Attaching'
-// on the process.
-func (e *Environment) followOutput() error {
-	if exists, err := e.Exists(); !exists {
-		if err != nil {
-			return errors.WithStack(err)
-		}
-
-		return errors.New(fmt.Sprintf("no such container: %s", e.Id))
-	}
-
-	opts := types.ContainerLogsOptions{
-		ShowStderr: true,
-		ShowStdout: true,
-		Follow:     true,
-		Since:      time.Now().Format(time.RFC3339),
-	}
-
-	reader, err := e.client.ContainerLogs(context.Background(), e.Id, opts)
-
-	go func(r io.ReadCloser) {
-		defer r.Close()
-
-		s := bufio.NewScanner(r)
-		for s.Scan() {
-			e.Events().Publish(environment.ConsoleOutputEvent, s.Text())
-		}
-
-		if err := s.Err(); err != nil {
-			log.WithField("error", err).WithField("container_id", e.Id).Warn("error processing scanner line in console output")
-		}
-	}(reader)
-
-	return errors.WithStack(err)
-}
-
-// Pulls the image from Docker. If there is an error while pulling the image from the source
-// but the image already exists locally, we will report that error to the logger but continue
-// with the process.
-//
-// The reasoning behind this is that Quay has had some serious outages as of late, and we don't
-// need to block all of the servers from booting just because of that. I'd imagine in a lot of
-// cases an outage shouldn't affect users too badly. It'll at least keep existing servers working
-// correctly if anything.
-//
-// TODO: handle authorization & local images
-func (e *Environment) ensureImageExists(image string) error {
-	// Give it up to 15 minutes to pull the image. I think this should cover 99.8% of cases where an
-	// image pull might fail. I can't imagine it will ever take more than 15 minutes to fully pull
-	// an image. Let me know when I am inevitably wrong here...
-	ctx, cancel := context.WithTimeout(context.Background(), time.Minute*15)
-	defer cancel()
-
-	// Get a registry auth configuration from the config.
-	var registryAuth *config.RegistryConfiguration
-	for registry, c := range config.Get().Docker.Registries {
-		if !strings.HasPrefix(image, registry) {
-			continue
-		}
-
-		log.WithField("registry", registry).Debug("using authentication for registry")
-		registryAuth = &c
-		break
-	}
-
-	// Get the ImagePullOptions.
-	imagePullOptions := types.ImagePullOptions{All: false}
-	if registryAuth != nil {
-		b64, err := registryAuth.Base64()
-		if err != nil {
-			log.WithError(err).Error("failed to get registry auth credentials")
-		}
-
-		// b64 is a string so if there is an error it will just be empty, not nil.
-		imagePullOptions.RegistryAuth = b64
-	}
-
-	out, err := e.client.ImagePull(ctx, image, imagePullOptions)
-	if err != nil {
-		images, ierr := e.client.ImageList(ctx, types.ImageListOptions{})
-		if ierr != nil {
-			// Well damn, something has gone really wrong here, just go ahead and abort there
-			// isn't much anything we can do to try and self-recover from this.
-			return ierr
-		}
-
-		for _, img := range images {
-			for _, t := range img.RepoTags {
-				if t != image {
-					continue
-				}
-
-				log.WithFields(log.Fields{
-					"image":        image,
-					"container_id": e.Id,
-					"error":        errors.New(err.Error()),
-				}).Warn("unable to pull requested image from remote source, however the image exists locally")
-
-				// Okay, we found a matching container image, in that case just go ahead and return
-				// from this function, since there is nothing else we need to do here.
-				return nil
-			}
-		}
-
-		return err
-	}
-	defer out.Close()
-
-	log.WithField("image", image).Debug("pulling docker image... this could take a bit of time")
-
-	// I'm not sure what the best approach here is, but this will block execution until the image
-	// is done being pulled, which is what we neee.
-	scanner := bufio.NewScanner(out)
-	for scanner.Scan() {
-		continue
-	}
-
-	if err := scanner.Err(); err != nil {
-		return err
-	}
-
-	return nil
-}

environment/docker/environment.go

@@ -1,169 +0,0 @@
-package docker
-
-import (
-	"context"
-	"github.com/docker/docker/api/types"
-	"github.com/docker/docker/client"
-	"github.com/pkg/errors"
-	"github.com/pterodactyl/wings/api"
-	"github.com/pterodactyl/wings/environment"
-	"github.com/pterodactyl/wings/events"
-	"io"
-	"sync"
-)
-
-type Metadata struct {
-	Invocation string
-	Image      string
-	Stop       *api.ProcessStopConfiguration
-}
-
-// Ensure that the Docker environment is always implementing all of the methods
-// from the base environment interface.
-var _ environment.ProcessEnvironment = (*Environment)(nil)
-
-type Environment struct {
-	mu      sync.RWMutex
-	eventMu sync.Mutex
-
-	// The public identifier for this environment. In this case it is the Docker container
-	// name that will be used for all instances created under it.
-	Id string
-
-	// The environment configuration.
-	Configuration *environment.Configuration
-
-	meta *Metadata
-
-	// The Docker client being used for this instance.
-	client *client.Client
-
-	// Controls the hijacked response stream which exists only when we're attached to
-	// the running container instance.
-	stream *types.HijackedResponse
-
-	// Holds the stats stream used by the polling commands so that we can easily close it out.
-	stats io.ReadCloser
-
-	emitter *events.EventBus
-
-	// Tracks the environment state.
-	st   string
-	stMu sync.RWMutex
-}
-
-// Creates a new base Docker environment. The ID passed through will be the ID that is used to
-// reference the container from here on out. This should be unique per-server (we use the UUID
-// by default). The container does not need to exist at this point.
-func New(id string, m *Metadata, c *environment.Configuration) (*Environment, error) {
-	cli, err := client.NewClientWithOpts(client.FromEnv)
-	if err != nil {
-		return nil, err
-	}
-
-	e := &Environment{
-		Id:            id,
-		Configuration: c,
-		meta:          m,
-		client:        cli,
-	}
-
-	return e, nil
-}
-
-func (e *Environment) SetStopConfiguration(c *api.ProcessStopConfiguration) {
-	e.mu.Lock()
-	e.meta.Stop = c
-	e.mu.Unlock()
-}
-
-func (e *Environment) Type() string {
-	return "docker"
-}
-
-// Set if this process is currently attached to the process.
-func (e *Environment) SetStream(s *types.HijackedResponse) {
-	e.mu.Lock()
-	e.stream = s
-	e.mu.Unlock()
-}
-
-// Determine if the this process is currently attached to the container.
-func (e *Environment) IsAttached() bool {
-	e.mu.RLock()
-	defer e.mu.RUnlock()
-
-	return e.stream != nil
-}
-
-func (e *Environment) Events() *events.EventBus {
-	e.eventMu.Lock()
-	defer e.eventMu.Unlock()
-
-	if e.emitter == nil {
-		e.emitter = events.New()
-	}
-
-	return e.emitter
-}
-
-// Determines if the container exists in this environment. The ID passed through should be the
-// server UUID since containers are created utilizing the server UUID as the name and docker
-// will work fine when using the container name as the lookup parameter in addition to the longer
-// ID auto-assigned when the container is createe.
-func (e *Environment) Exists() (bool, error) {
-	_, err := e.client.ContainerInspect(context.Background(), e.Id)
-
-	if err != nil {
-		// If this error is because the container instance wasn't found via Docker we
-		// can safely ignore the error and just return false.
-		if client.IsErrNotFound(err) {
-			return false, nil
-		}
-
-		return false, err
-	}
-
-	return true, nil
-}
-
-// Determines if the server's docker container is currently running. If there is no container
-// present, an error will be raised (since this shouldn't be a case that ever happens under
-// correctly developed circumstances).
-//
-// You can confirm if the instance wasn't found by using client.IsErrNotFound from the Docker
-// API.
-//
-// @see docker/client/errors.go
-func (e *Environment) IsRunning() (bool, error) {
-	c, err := e.client.ContainerInspect(context.Background(), e.Id)
-	if err != nil {
-		return false, err
-	}
-
-	return c.State.Running, nil
-}
-
-// Determine the container exit state and return the exit code and wether or not
-// the container was killed by the OOM killer.
-func (e *Environment) ExitState() (uint32, bool, error) {
-	c, err := e.client.ContainerInspect(context.Background(), e.Id)
-	if err != nil {
-		// I'm not entirely sure how this can happen to be honest. I tried deleting a
-		// container _while_ a server was running and wings gracefully saw the crash and
-		// created a new container for it.
-		//
-		// However, someone reported an error in Discord about this scenario happening,
-		// so I guess this should prevent it? They didn't tell me how they caused it though
-		// so that's a mystery that will have to go unsolvee.
-		//
-		// @see https://github.com/pterodactyl/panel/issues/2003
-		if client.IsErrNotFound(err) {
-			return 1, false, nil
-		}
-
-		return 0, false, errors.WithStack(err)
-	}
-
-	return uint32(c.State.ExitCode), c.State.OOMKilled, nil
-}

environment/docker/power.go

@@ -1,232 +0,0 @@
-package docker
-
-import (
-	"context"
-	"github.com/apex/log"
-	"github.com/docker/docker/api/types"
-	"github.com/docker/docker/api/types/container"
-	"github.com/docker/docker/client"
-	"github.com/pkg/errors"
-	"github.com/pterodactyl/wings/api"
-	"github.com/pterodactyl/wings/environment"
-	"os"
-	"strings"
-	"time"
-)
-
-// Run before the container starts and get the process configuration from the Panel.
-// This is important since we use this to check configuration files as well as ensure
-// we always have the latest version of an egg available for server processes.
-//
-// This process will also confirm that the server environment exists and is in a bootable
-// state. This ensures that unexpected container deletion while Wings is running does
-// not result in the server becoming unbootable.
-func (e *Environment) OnBeforeStart() error {
-	// Always destroy and re-create the server container to ensure that synced data from
-	// the Panel is usee.
-	if err := e.client.ContainerRemove(context.Background(), e.Id, types.ContainerRemoveOptions{RemoveVolumes: true}); err != nil {
-		if !client.IsErrNotFound(err) {
-			return err
-		}
-	}
-
-	// The Create() function will check if the container exists in the first place, and if
-	// so just silently return without an error. Otherwise, it will try to create the necessary
-	// container and data storage directory.
-	//
-	// This won't actually run an installation process however, it is just here to ensure the
-	// environment gets created properly if it is missing and the server is startee. We're making
-	// an assumption that all of the files will still exist at this point.
-	if err := e.Create(); err != nil {
-		return err
-	}
-
-	return nil
-}
-
-// Starts the server environment and begins piping output to the event listeners for the
-// console. If a container does not exist, or needs to be rebuilt that will happen in the
-// call to OnBeforeStart().
-func (e *Environment) Start() error {
-	sawError := false
-	// If sawError is set to true there was an error somewhere in the pipeline that
-	// got passed up, but we also want to ensure we set the server to be offline at
-	// that point.
-	defer func() {
-		if sawError {
-			// If we don't set it to stopping first, you'll trigger crash detection which
-			// we don't want to do at this point since it'll just immediately try to do the
-			// exact same action that lead to it crashing in the first place...
-			e.setState(environment.ProcessStoppingState)
-			e.setState(environment.ProcessOfflineState)
-		}
-	}()
-
-	if c, err := e.client.ContainerInspect(context.Background(), e.Id); err != nil {
-		// Do nothing if the container is not found, we just don't want to continue
-		// to the next block of code here. This check was inlined here to guard againt
-		// a nil-pointer when checking c.State below.
-		//
-		// @see https://github.com/pterodactyl/panel/issues/2000
-		if !client.IsErrNotFound(err) {
-			return errors.WithStack(err)
-		}
-	} else {
-		// If the server is running update our internal state and continue on with the attach.
-		if c.State.Running {
-			e.setState(environment.ProcessRunningState)
-
-			return e.Attach()
-		}
-
-		// Truncate the log file so we don't end up outputting a bunch of useless log information
-		// to the websocket and whatnot. Check first that the path and file exist before trying
-		// to truncate them.
-		if _, err := os.Stat(c.LogPath); err == nil {
-			if err := os.Truncate(c.LogPath, 0); err != nil {
-				return errors.WithStack(err)
-			}
-		}
-	}
-
-	e.setState(environment.ProcessStartingState)
-
-	// Set this to true for now, we will set it to false once we reach the
-	// end of this chain.
-	sawError = true
-
-	// Run the before start function and wait for it to finish. This will validate that the container
-	// exists on the system, and rebuild the container if that is required for server booting to
-	// occur.
-	if err := e.OnBeforeStart(); err != nil {
-		return errors.WithStack(err)
-	}
-
-	ctx, cancel := context.WithTimeout(context.Background(), time.Second*10)
-	defer cancel()
-
-	if err := e.client.ContainerStart(ctx, e.Id, types.ContainerStartOptions{}); err != nil {
-		return errors.WithStack(err)
-	}
-
-	// No errors, good to continue through.
-	sawError = false
-
-	return e.Attach()
-}
-
-// Stops the container that the server is running in. This will allow up to 30 seconds to pass
-// before the container is forcefully terminated if we are trying to stop it without using a command
-// sent into the instance.
-//
-// You most likely want to be using WaitForStop() rather than this function, since this will return
-// as soon as the command is sent, rather than waiting for the process to be completed stopped.
-func (e *Environment) Stop() error {
-	e.mu.RLock()
-	s := e.meta.Stop
-	e.mu.RUnlock()
-
-	if s == nil || s.Type == api.ProcessStopSignal {
-		if s == nil {
-			log.WithField("container_id", e.Id).Warn("no stop configuration detected for environment, using termination proceedure")
-		}
-
-		return e.Terminate(os.Kill)
-	}
-
-	// If the process is already offline don't switch it back to stopping. Just leave it how
-	// it is and continue through to the stop handling for the process.
-	if e.State() != environment.ProcessOfflineState {
-		e.setState(environment.ProcessStoppingState)
-	}
-
-	// Only attempt to send the stop command to the instance if we are actually attached to
-	// the instance. If we are not for some reason, just send the container stop event.
-	if e.IsAttached() && s.Type == api.ProcessStopCommand {
-		return e.SendCommand(s.Value)
-	}
-
-	t := time.Second * 30
-	err := e.client.ContainerStop(context.Background(), e.Id, &t)
-	if err != nil {
-		// If the container does not exist just mark the process as stopped and return without
-		// an error.
-		if client.IsErrNotFound(err) {
-			e.SetStream(nil)
-			e.setState(environment.ProcessOfflineState)
-
-			return nil
-		}
-
-		return err
-	}
-
-	return nil
-}
-
-// Attempts to gracefully stop a server using the defined stop command. If the server
-// does not stop after seconds have passed, an error will be returned, or the instance
-// will be terminated forcefully depending on the value of the second argument.
-func (e *Environment) WaitForStop(seconds uint, terminate bool) error {
-	if err := e.Stop(); err != nil {
-		return errors.WithStack(err)
-	}
-
-	ctx, cancel := context.WithTimeout(context.Background(), time.Duration(seconds)*time.Second)
-	defer cancel()
-
-	// Block the return of this function until the container as been marked as no
-	// longer running. If this wait does not end by the time seconds have passed,
-	// attempt to terminate the container, or return an error.
-	ok, errChan := e.client.ContainerWait(ctx, e.Id, container.WaitConditionNotRunning)
-	select {
-	case <-ctx.Done():
-		if ctxErr := ctx.Err(); ctxErr != nil {
-			if terminate {
-				return e.Terminate(os.Kill)
-			}
-
-			return errors.WithStack(ctxErr)
-		}
-	case err := <-errChan:
-		if err != nil {
-			return errors.WithStack(err)
-		}
-	case <-ok:
-	}
-
-	return nil
-}
-
-// Forcefully terminates the container using the signal passed through.
-func (e *Environment) Terminate(signal os.Signal) error {
-	c, err := e.client.ContainerInspect(context.Background(), e.Id)
-	if err != nil {
-		return errors.WithStack(err)
-	}
-
-	if !c.State.Running {
-		// If the container is not running but we're not already in a stopped state go ahead
-		// and update things to indicate we should be completely stopped now. Set to stopping
-		// first so crash detection is not triggered.
-		if e.State() != environment.ProcessOfflineState {
-			e.setState(environment.ProcessStoppingState)
-			e.setState(environment.ProcessOfflineState)
-		}
-
-		return nil
-	}
-
-	// We set it to stopping than offline to prevent crash detection from being triggeree.
-	e.setState(environment.ProcessStoppingState)
-
-	sig := strings.TrimSuffix(strings.TrimPrefix(signal.String(), "signal "), "ed")
-
-	if err := e.client.ContainerKill(context.Background(), e.Id, sig); err != nil {
-		return err
-	}
-
-	e.setState(environment.ProcessOfflineState)
-
-	return nil
-}

environment/docker/state.go

@@ -1,41 +0,0 @@
-package docker
-
-import (
-	"fmt"
-	"github.com/pkg/errors"
-	"github.com/pterodactyl/wings/environment"
-)
-
-// Returns the current environment state.
-func (e *Environment) State() string {
-	e.stMu.RLock()
-	defer e.stMu.RUnlock()
-
-	return e.st
-}
-
-// Sets the state of the environment. This emits an event that server's can hook into to
-// take their own actions and track their own state based on the environment.
-func (e *Environment) setState(state string) error {
-	if state != environment.ProcessOfflineState &&
-		state != environment.ProcessStartingState &&
-		state != environment.ProcessRunningState &&
-		state != environment.ProcessStoppingState {
-		return errors.New(fmt.Sprintf("invalid server state received: %s", state))
-	}
-
-	// Get the current state of the environment before changing it.
-	prevState := e.State()
-
-	// Emit the event to any listeners that are currently registeree.
-	if prevState != state {
-		// If the state changed make sure we update the internal tracking to note that.
-		e.stMu.Lock()
-		e.st = state
-		e.stMu.Unlock()
-
-		e.Events().Publish(environment.StateChangeEvent, e.State())
-	}
-
-	return nil
-}

environment/docker/stats.go

@@ -1,119 +0,0 @@
-package docker
-
-import (
-	"context"
-	"encoding/json"
-	"github.com/apex/log"
-	"github.com/docker/docker/api/types"
-	"github.com/pkg/errors"
-	"github.com/pterodactyl/wings/environment"
-	"io"
-	"math"
-	"sync/atomic"
-)
-
-// Attach to the instance and then automatically emit an event whenever the resource usage for the
-// server process changes.
-func (e *Environment) pollResources(ctx context.Context) error {
-	if e.State() == environment.ProcessOfflineState {
-		return errors.New("attempting to enable resource polling on a stopped server instance")
-	}
-
-	stats, err := e.client.ContainerStats(context.Background(), e.Id, true)
-	if err != nil {
-		return errors.WithStack(err)
-	}
-
-	dec := json.NewDecoder(stats.Body)
-
-	for {
-		select {
-		case <-ctx.Done():
-			return ctx.Err()
-		default:
-			var v *types.StatsJSON
-
-			if err := dec.Decode(&v); err != nil {
-				if err != io.EOF {
-					log.WithField("container_id", e.Id).Warn("encountered error processing docker stats output, stopping collection")
-				}
-
-				return nil
-			}
-
-			// Disable collection if the server is in an offline state and this process is still running.
-			if e.State() == environment.ProcessOfflineState {
-				return nil
-			}
-
-			var rx uint64
-			var tx uint64
-			for _, nw := range v.Networks {
-				atomic.AddUint64(&rx, nw.RxBytes)
-				atomic.AddUint64(&tx, nw.RxBytes)
-			}
-
-			st := &environment.Stats{
-				Memory:      calculateDockerMemory(v.MemoryStats),
-				MemoryLimit: v.MemoryStats.Limit,
-				CpuAbsolute: calculateDockerAbsoluteCpu(&v.PreCPUStats, &v.CPUStats),
-				Network: struct {
-					RxBytes uint64 `json:"rx_bytes"`
-					TxBytes uint64 `json:"tx_bytes"`
-				}{
-					RxBytes: rx,
-					TxBytes: tx,
-				},
-			}
-
-			b, _ := json.Marshal(st)
-			e.Events().Publish(environment.ResourceEvent, string(b))
-		}
-	}
-}
-
-// The "docker stats" CLI call does not return the same value as the types.MemoryStats.Usage
-// value which can be rather confusing to people trying to compare panel usage to
-// their stats output.
-//
-// This math is straight up lifted from their CLI repository in order to show the same
-// values to avoid people bothering me about it. It should also reflect a slightly more
-// correct memory value anyways.
-//
-// @see https://github.com/docker/cli/blob/96e1d1d6/cli/command/container/stats_helpers.go#L227-L249
-func calculateDockerMemory(stats types.MemoryStats) uint64 {
-	if v, ok := stats.Stats["total_inactive_file"]; ok && v < stats.Usage {
-		return stats.Usage - v
-	}
-
-	if v := stats.Stats["inactive_file"]; v < stats.Usage {
-		return stats.Usage - v
-	}
-
-	return stats.Usage
-}
-
-// Calculates the absolute CPU usage used by the server process on the system, not constrained
-// by the defined CPU limits on the container.
-//
-// @see https://github.com/docker/cli/blob/aa097cf1aa19099da70930460250797c8920b709/cli/command/container/stats_helpers.go#L166
-func calculateDockerAbsoluteCpu(pStats *types.CPUStats, stats *types.CPUStats) float64 {
-	// Calculate the change in CPU usage between the current and previous reading.
-	cpuDelta := float64(stats.CPUUsage.TotalUsage) - float64(pStats.CPUUsage.TotalUsage)
-
-	// Calculate the change for the entire system's CPU usage between current and previous reading.
-	systemDelta := float64(stats.SystemUsage) - float64(pStats.SystemUsage)
-
-	// Calculate the total number of CPU cores being used.
-	cpus := float64(stats.OnlineCPUs)
-	if cpus == 0.0 {
-		cpus = float64(len(stats.CPUUsage.PercpuUsage))
-	}
-
-	percent := 0.0
-	if systemDelta > 0.0 && cpuDelta > 0.0 {
-		percent = (cpuDelta / systemDelta) * cpus * 100.0
-	}
-
-	return math.Round(percent*1000) / 1000
-}

environment/docker/stream.go

@@ -1,108 +0,0 @@
-package docker
-
-import (
-	"bufio"
-	"bytes"
-	"context"
-	"encoding/json"
-	"github.com/docker/docker/api/types"
-	"github.com/pkg/errors"
-	"io"
-	"os"
-)
-
-type dockerLogLine struct {
-	Log string `json:"log"`
-}
-
-func (e *Environment) setStream(s *types.HijackedResponse) {
-	e.mu.Lock()
-	e.stream = s
-	e.mu.Unlock()
-}
-
-// Sends the specified command to the stdin of the running container instance. There is no
-// confirmation that this data is sent successfully, only that it gets pushed into the stdin.
-func (e *Environment) SendCommand(c string) error {
-	e.mu.RLock()
-	defer e.mu.RUnlock()
-
-	if !e.IsAttached() {
-		return errors.New("attempting to send command to non-attached instance")
-	}
-
-	_, err := e.stream.Conn.Write([]byte(c + "\n"))
-
-	return errors.WithStack(err)
-}
-
-// Reads the log file for the server. This does not care if the server is running or not, it will
-// simply try to read the last X bytes of the file and return them.
-func (e *Environment) Readlog(len int64) ([]string, error) {
-	j, err := e.client.ContainerInspect(context.Background(), e.Id)
-	if err != nil {
-		return nil, err
-	}
-
-	if j.LogPath == "" {
-		return nil, errors.New("empty log path defined for server")
-	}
-
-	f, err := os.Open(j.LogPath)
-	if err != nil {
-		return nil, err
-	}
-	defer f.Close()
-
-	// Check if the length of the file is smaller than the amount of data that was requested
-	// for reading. If so, adjust the length to be the total length of the file. If this is not
-	// done an error is thrown since we're reading backwards, and not forwards.
-	if stat, err := os.Stat(j.LogPath); err != nil {
-		return nil, err
-	} else if stat.Size() < len {
-		len = stat.Size()
-	}
-
-	// Seed to the end of the file and then move backwards until the length is met to avoid
-	// reading the entirety of the file into memory.
-	if _, err := f.Seek(-len, io.SeekEnd); err != nil {
-		return nil, err
-	}
-
-	b := make([]byte, len)
-
-	if _, err := f.Read(b); err != nil && err != io.EOF {
-		return nil, err
-	}
-
-	return e.parseLogToStrings(b)
-}
-
-// Docker stores the logs for server output in a JSON format. This function will iterate over the JSON
-// that was read from the log file and parse it into a more human readable format.
-func (e *Environment) parseLogToStrings(b []byte) ([]string, error) {
-	var hasError = false
-	var out []string
-
-	scanner := bufio.NewScanner(bytes.NewReader(b))
-	for scanner.Scan() {
-		var l dockerLogLine
-		// Unmarshal the contents and allow up to a single error before bailing out of the process. We
-		// do this because if you're arbitrarily reading a length of the file you'll likely end up
-		// with the first line in the output being improperly formatted JSON. In those cases we want to
-		// just skip over it. However if we see another error we're going to bail out because that is an
-		// abnormal situation.
-		if err := json.Unmarshal([]byte(scanner.Text()), &l); err != nil {
-			if hasError {
-				return nil, err
-			}
-
-			hasError = true
-			continue
-		}
-
-		out = append(out, l.Log)
-	}
-
-	return out, nil
-}

environment/settings.go

@@ -1,124 +0,0 @@
-package environment
-
-import (
-	"fmt"
-	"math"
-	"strconv"
-)
-
-type Mount struct {
-	// In Docker environments this makes no difference, however in a non-Docker environment you
-	// should treat the "Default" mount as the root directory for the server. All other mounts
-	// are just in addition to that one, and generally things like shared maps or timezone data.
-	Default bool `json:"-"`
-
-	// The target path on the system. This is "/home/container" for all server's Default mount
-	// but in non-container environments you can likely ignore the target and just work with the
-	// source.
-	Target string `json:"target"`
-
-	// The directory from which the files will be read. In Docker environments this is the directory
-	// that we're mounting into the container at the Target location.
-	Source string `json:"source"`
-
-	// Wether or not the directory is being mounted as read-only. It is up to the environment to
-	// handle this value correctly and ensure security expectations are met with its usage.
-	ReadOnly bool `json:"read_only"`
-}
-
-// The build settings for a given server that impact docker container creation and
-// resource limits for a server instance.
-type Limits struct {
-	// The total amount of memory in megabytes that this server is allowed to
-	// use on the host system.
-	MemoryLimit int64 `json:"memory_limit"`
-
-	// The amount of additional swap space to be provided to a container instance.
-	Swap int64 `json:"swap"`
-
-	// The relative weight for IO operations in a container. This is relative to other
-	// containers on the system and should be a value between 10 and 1000.
-	IoWeight uint16 `json:"io_weight"`
-
-	// The percentage of CPU that this instance is allowed to consume relative to
-	// the host. A value of 200% represents complete utilization of two cores. This
-	// should be a value between 1 and THREAD_COUNT * 100.
-	CpuLimit int64 `json:"cpu_limit"`
-
-	// The amount of disk space in megabytes that a server is allowed to use.
-	DiskSpace int64 `json:"disk_space"`
-
-	// Sets which CPU threads can be used by the docker instance.
-	Threads string `json:"threads"`
-
-	OOMDisabled bool `json:"oom_disabled"`
-}
-
-// Converts the CPU limit for a server build into a number that can be better understood
-// by the Docker environment. If there is no limit set, return -1 which will indicate to
-// Docker that it has unlimited CPU quota.
-func (r *Limits) ConvertedCpuLimit() int64 {
-	if r.CpuLimit == 0 {
-		return -1
-	}
-
-	return r.CpuLimit * 1000
-}
-
-// Set the hard limit for memory usage to be 5% more than the amount of memory assigned to
-// the server. If the memory limit for the server is < 4G, use 10%, if less than 2G use
-// 15%. This avoids unexpected crashes from processes like Java which run over the limit.
-func (r *Limits) MemoryOverheadMultiplier() float64 {
-	if r.MemoryLimit <= 2048 {
-		return 1.15
-	} else if r.MemoryLimit <= 4096 {
-		return 1.10
-	}
-
-	return 1.05
-}
-
-func (r *Limits) BoundedMemoryLimit() int64 {
-	return int64(math.Round(float64(r.MemoryLimit) * r.MemoryOverheadMultiplier() * 1_000_000))
-}
-
-// Returns the amount of swap available as a total in bytes. This is returned as the amount
-// of memory available to the server initially, PLUS the amount of additional swap to include
-// which is the format used by Docker.
-func (r *Limits) ConvertedSwap() int64 {
-	if r.Swap < 0 {
-		return -1
-	}
-
-	return (r.Swap * 1_000_000) + r.BoundedMemoryLimit()
-}
-
-type Variables map[string]interface{}
-
-// Ugly hacky function to handle environment variables that get passed through as not-a-string
-// from the Panel. Ideally we'd just say only pass strings, but that is a fragile idea and if a
-// string wasn't passed through you'd cause a crash or the server to become unavailable. For now
-// try to handle the most likely values from the JSON and hope for the best.
-func (v Variables) Get(key string) string {
-	val, ok := v[key]
-	if !ok {
-		return ""
-	}
-
-	switch val.(type) {
-	case int:
-		return strconv.Itoa(val.(int))
-	case int32:
-		return strconv.FormatInt(val.(int64), 10)
-	case int64:
-		return strconv.FormatInt(val.(int64), 10)
-	case float32:
-		return fmt.Sprintf("%f", val.(float32))
-	case float64:
-		return fmt.Sprintf("%f", val.(float64))
-	case bool:
-		return strconv.FormatBool(val.(bool))
-	}
-
-	return val.(string)
-}

environment/stats.go

@@ -1,47 +0,0 @@
-package environment
-
-import "sync"
-
-// Defines the current resource usage for a given server instance. If a server is offline you
-// should obviously expect memory and CPU usage to be 0. However, disk will always be returned
-// since that is not dependent on the server being running to collect that data.
-type Stats struct {
-	mu sync.RWMutex
-
-	// The total amount of memory, in bytes, that this server instance is consuming. This is
-	// calculated slightly differently than just using the raw Memory field that the stats
-	// return from the container, so please check the code setting this value for how that
-	// is calculated.
-	Memory uint64 `json:"memory_bytes"`
-
-	// The total amount of memory this container or resource can use. Inside Docker this is
-	// going to be higher than you'd expect because we're automatically allocating overhead
-	// abilities for the container, so its not going to be a perfect match.
-	MemoryLimit uint64 `json:"memory_limit_bytes"`
-
-	// The absolute CPU usage is the amount of CPU used in relation to the entire system and
-	// does not take into account any limits on the server process itself.
-	CpuAbsolute float64 `json:"cpu_absolute"`
-
-	// The current disk space being used by the server. This is cached to prevent slow lookup
-	// issues on frequent refreshes.
-	// Disk int64 `json:"disk_bytes"`
-
-	// Current network transmit in & out for a container.
-	Network struct {
-		RxBytes uint64 `json:"rx_bytes"`
-		TxBytes uint64 `json:"tx_bytes"`
-	} `json:"network"`
-}
-
-// Resets the usages values to zero, used when a server is stopped to ensure we don't hold
-// onto any values incorrectly.
-func (s *Stats) Empty() {
-	s.mu.Lock()
-	defer s.mu.Unlock()
-
-	s.Memory = 0
-	s.CpuAbsolute = 0
-	s.Network.TxBytes = 0
-	s.Network.RxBytes = 0
-}

events/events.go

@@ -1,105 +0,0 @@
-package events
-
-import (
-	"encoding/json"
-	"strings"
-	"sync"
-)
-
-type Event struct {
-	Data  string
-	Topic string
-}
-
-type EventBus struct {
-	sync.RWMutex
-
-	subscribers map[string]map[chan Event]struct{}
-}
-
-func New() *EventBus {
-	return &EventBus{
-		subscribers: make(map[string]map[chan Event]struct{}),
-	}
-}
-
-// Publish data to a given topic.
-func (e *EventBus) Publish(topic string, data string) {
-	t := topic
-	// Some of our topics for the socket support passing a more specific namespace,
-	// such as "backup completed:1234" to indicate which specific backup was completed.
-	//
-	// In these cases, we still need to the send the event using the standard listener
-	// name of "backup completed".
-	if strings.Contains(topic, ":") {
-		parts := strings.SplitN(topic, ":", 2)
-
-		if len(parts) == 2 {
-			t = parts[0]
-		}
-	}
-
-	// Acquire a read lock and loop over all of the channels registered for the topic. This
-	// avoids a panic crash if the process tries to unregister the channel while this routine
-	// is running.
-	go func() {
-		e.RLock()
-		defer e.RUnlock()
-
-		if ch, ok := e.subscribers[t]; ok {
-			for channel := range ch {
-				channel <- Event{Data: data, Topic: topic}
-			}
-		}
-	}()
-}
-
-func (e *EventBus) PublishJson(topic string, data interface{}) error {
-	b, err := json.Marshal(data)
-	if err != nil {
-		return err
-	}
-
-	e.Publish(topic, string(b))
-
-	return nil
-}
-
-// Subscribe to an emitter topic using a channel.
-func (e *EventBus) Subscribe(topic string, ch chan Event) {
-	e.Lock()
-	defer e.Unlock()
-
-	if _, exists := e.subscribers[topic]; !exists {
-		e.subscribers[topic] = make(map[chan Event]struct{})
-	}
-
-	// Only set the channel if there is not currently a matching one for this topic. This
-	// avoids registering two identical listeners for the same topic and causing pain in
-	// the unsubscribe functionality as well.
-	if _, exists := e.subscribers[topic][ch]; !exists {
-		e.subscribers[topic][ch] = struct{}{}
-	}
-}
-
-// Unsubscribe a channel from a given topic.
-func (e *EventBus) Unsubscribe(topic string, ch chan Event) {
-	e.Lock()
-	defer e.Unlock()
-
-	if _, exists := e.subscribers[topic][ch]; exists {
-		delete(e.subscribers[topic], ch)
-	}
-}
-
-// Removes all of the event listeners for the server. This is used when a server
-// is being deleted to avoid a bunch of de-reference errors cropping up. Obviously
-// should also check elsewhere and handle a server reference going nil, but this
-// won't hurt.
-func (e *EventBus) UnsubscribeAll() {
-	e.Lock()
-	defer e.Unlock()
-
-	// Reset the entire struct into an empty map.
-	e.subscribers = make(map[string]map[chan Event]struct{})
-}

go.mod

@@ -1,6 +1,6 @@
 module github.com/pterodactyl/wings
 
-go 1.13
+go 1.12
 
 // Uncomment this in development environments to make changes to the core SFTP
 // server software. This assumes you're using the official Pterodactyl Environment
@@ -11,87 +11,57 @@ go 1.13
 // replace github.com/pterodactyl/sftp-server => ../sftp-server
 
 require (
-	github.com/AlecAivazis/survey/v2 v2.1.0
 	github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78 // indirect
-	github.com/Jeffail/gabs/v2 v2.5.1
-	github.com/Microsoft/go-winio v0.4.14 // indirect
-	github.com/NYTimes/logrotate v1.0.0
-	github.com/andybalholm/brotli v1.0.0 // indirect
-	github.com/apex/log v1.8.0
-	github.com/asaskevich/govalidator v0.0.0-20200428143746-21a406dcc535
+	github.com/Jeffail/gabs/v2 v2.2.0
+	github.com/Microsoft/go-winio v0.4.7 // indirect
+	github.com/Nvveen/Gotty v0.0.0-20120604004816-cd527374f1e5 // indirect
+	github.com/asaskevich/govalidator v0.0.0-20190424111038-f61b66f89f4a
 	github.com/beevik/etree v1.1.0
-	github.com/buger/jsonparser v1.0.0
-	github.com/cobaugh/osrelease v0.0.0-20181218015638-a93a0a55a249
-	github.com/containerd/containerd v1.3.7 // indirect
-	github.com/containerd/fifo v0.0.0-20200410184934-f15a3290365b // indirect
-	github.com/creasty/defaults v1.5.0
-	github.com/docker/cli v17.12.1-ce-rc2+incompatible
+	github.com/buger/jsonparser v0.0.0-20191204142016-1a29609e0929
+	github.com/containerd/fifo v0.0.0-20190226154929-a9fb20d87448 // indirect
+	github.com/creasty/defaults v1.3.0
 	github.com/docker/distribution v2.7.1+incompatible // indirect
-	github.com/docker/docker v17.12.0-ce-rc1.0.20200618181300-9dc6525e6118+incompatible
+	github.com/docker/docker v0.0.0-20180422163414-57142e89befe
 	github.com/docker/go-connections v0.4.0
-	github.com/docker/go-metrics v0.0.1 // indirect
-	github.com/docker/go-units v0.4.0 // indirect
-	github.com/fatih/color v1.9.0
-	github.com/fsnotify/fsnotify v1.4.9 // indirect
-	github.com/gabriel-vasile/mimetype v1.1.1
-	github.com/gammazero/deque v0.0.0-20200721202602-07291166fe33 // indirect
-	github.com/gammazero/workerpool v1.0.0
-	github.com/gbrlsnchs/jwt/v3 v3.0.0-rc.2
-	github.com/gin-gonic/gin v1.6.3
-	github.com/go-playground/validator/v10 v10.3.0 // indirect
-	github.com/gogo/protobuf v1.3.1 // indirect
-	github.com/golang/gddo v0.0.0-20200715224205-051695c33a3f // indirect
+	github.com/docker/go-units v0.3.3 // indirect
+	github.com/gabriel-vasile/mimetype v0.1.4
+	github.com/gbrlsnchs/jwt/v3 v3.0.0-rc.0
+	github.com/ghodss/yaml v1.0.0
+	github.com/gogo/protobuf v1.2.1 // indirect
 	github.com/google/uuid v1.1.1
-	github.com/gorilla/mux v1.7.4 // indirect
-	github.com/gorilla/websocket v1.4.2
+	github.com/gorilla/websocket v1.4.0
+	github.com/gotestyourself/gotestyourself v2.2.0+incompatible // indirect
 	github.com/iancoleman/strcase v0.0.0-20191112232945-16388991a334
-	github.com/icza/dyno v0.0.0-20200205103839-49cb13720835
 	github.com/imdario/mergo v0.3.8
-	github.com/karrick/godirwalk v1.16.1
-	github.com/klauspost/compress v1.10.10 // indirect
-	github.com/klauspost/pgzip v1.2.4
-	github.com/magefile/mage v1.10.0 // indirect
+	github.com/julienschmidt/httprouter v1.2.0
 	github.com/magiconair/properties v1.8.1
-	github.com/mattn/go-colorable v0.1.7
-	github.com/mattn/go-shellwords v1.0.10 // indirect
-	github.com/mgutz/ansi v0.0.0-20200706080929-d51e80ef957d // indirect
-	github.com/mholt/archiver/v3 v3.3.0
 	github.com/mitchellh/colorstring v0.0.0-20190213212951-d06e56a500db
-	github.com/morikuni/aec v1.0.0 // indirect
-	github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e // indirect
-	github.com/nwaples/rardecode v1.1.0 // indirect
-	github.com/opencontainers/go-digest v1.0.0 // indirect
+	github.com/olebedev/emitter v0.0.0-20190110104742-e8d1457e6aee
+	github.com/onsi/ginkgo v1.8.0 // indirect
+	github.com/onsi/gomega v1.5.0 // indirect
+	github.com/opencontainers/go-digest v1.0.0-rc1 // indirect
 	github.com/opencontainers/image-spec v1.0.1 // indirect
 	github.com/patrickmn/go-cache v2.1.0+incompatible
-	github.com/pierrec/lz4 v2.5.2+incompatible // indirect
-	github.com/pkg/errors v0.9.1
-	github.com/pkg/profile v1.5.0
-	github.com/pkg/sftp v1.11.0 // indirect
-	github.com/prometheus/common v0.11.1 // indirect
-	github.com/pterodactyl/sftp-server v1.1.5
-	github.com/remeh/sizedwaitgroup v1.0.0
-	github.com/sabhiram/go-gitignore v0.0.0-20180611051255-d3107576ba94
-	github.com/smartystreets/goconvey v1.6.4 // indirect
-	github.com/spf13/cobra v1.0.0
-	github.com/spf13/pflag v1.0.5 // indirect
-	github.com/uber-go/zap v1.9.1 // indirect
-	github.com/ulikunitz/xz v0.5.7 // indirect
-	go.uber.org/zap v1.15.0
-	golang.org/x/crypto v0.0.0-20200728195943-123391ffb6de
-	golang.org/x/lint v0.0.0-20200302205851-738671d3881b // indirect
-	golang.org/x/net v0.0.0-20200707034311-ab3426394381 // indirect
-	golang.org/x/sync v0.0.0-20200625203802-6e8e738ad208
-	golang.org/x/text v0.3.3 // indirect
-	golang.org/x/time v0.0.0-20200630173020-3af7569d3a1e // indirect
-	golang.org/x/tools v0.0.0-20200509030707-2212a7e161a5 // indirect
-	golang.org/x/tools/gopls v0.1.3 // indirect
-	golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 // indirect
-	google.golang.org/genproto v0.0.0-20200806141610-86f49bd18e98 // indirect
-	google.golang.org/grpc v1.31.0 // indirect
-	google.golang.org/protobuf v1.25.0 // indirect
-	gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f // indirect
-	gopkg.in/ini.v1 v1.57.0
-	gopkg.in/yaml.v2 v2.3.0
+	github.com/pkg/errors v0.8.1
+	github.com/pkg/sftp v1.10.1 // indirect
+	github.com/pterodactyl/sftp-server v1.1.0
+	github.com/remeh/sizedwaitgroup v0.0.0-20180822144253-5e7302b12cce
+	github.com/sirupsen/logrus v1.0.5 // indirect
+	go.uber.org/atomic v1.5.1 // indirect
+	go.uber.org/multierr v1.4.0 // indirect
+	go.uber.org/zap v1.13.0
+	golang.org/x/crypto v0.0.0-20191206172530-e9b2fee46413
+	golang.org/x/lint v0.0.0-20191125180803-fdd1cda4f05f // indirect
+	golang.org/x/net v0.0.0-20190923162816-aa69164e4478
+	golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e // indirect
+	golang.org/x/sys v0.0.0-20191206220618-eeba5f6aabab // indirect
+	golang.org/x/text v0.3.2 // indirect
+	golang.org/x/time v0.0.0-20190308202827-9d24e82272b4 // indirect
+	golang.org/x/tools v0.0.0-20191206204035-259af5ff87bd // indirect
+	golang.org/x/tools/gopls v0.1.7 // indirect
+	gopkg.in/airbrake/gobrake.v2 v2.0.9 // indirect
+	gopkg.in/gemnasium/logrus-airbrake-hook.v2 v2.1.2 // indirect
+	gopkg.in/ini.v1 v1.51.0
+	gopkg.in/yaml.v2 v2.2.2
 	gotest.tools v2.2.0+incompatible // indirect
-	honnef.co/go/tools v0.0.1-2020.1.3 // indirect
 )

go.sum

@@ -1,872 +1,212 @@
-cloud.google.com/go v0.16.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-github.com/AlecAivazis/survey/v2 v2.0.7 h1:+f825XHLse/hWd2tE/V5df04WFGimk34Eyg/z35w/rc=
-github.com/AlecAivazis/survey/v2 v2.0.7/go.mod h1:mlizQTaPjnR4jcpwRSaSlkbsRfYFEyKgLQvYTzxxiHA=
-github.com/AlecAivazis/survey/v2 v2.1.0 h1:AT4+23hOFopXYZaNGugbk7MWItkz0SfTmH/Hk92KeeE=
-github.com/AlecAivazis/survey/v2 v2.1.0/go.mod h1:9FJRdMdDm8rnT+zHVbvQT2RTSTLq0Ttd6q3Vl2fahjk=
 github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78 h1:w+iIsaOQNcT7OZ575w+acHgRric5iCyQh+xv+KJ4HB8=
 github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78/go.mod h1:LmzpDX56iTiv29bbRTIsUNlaFfuhWRQBWjQdVyAevI8=
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http.go

@@ -0,0 +1,559 @@
+package main
+
+import (
+	"bufio"
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"github.com/buger/jsonparser"
+	"github.com/gorilla/websocket"
+	"github.com/julienschmidt/httprouter"
+	"github.com/pkg/errors"
+	"github.com/pterodactyl/wings/config"
+	"github.com/pterodactyl/wings/installer"
+	"github.com/pterodactyl/wings/server"
+	"go.uber.org/zap"
+	"io"
+	"net/http"
+	"os"
+	"strconv"
+	"strings"
+)
+
+// Retrieves a server out of the collection by UUID.
+func (rt *Router) GetServer(uuid string) *server.Server {
+	return server.GetServers().Find(func(i *server.Server) bool {
+		return i.Uuid == uuid
+	})
+}
+
+type Router struct {
+	upgrader websocket.Upgrader
+
+	// The authentication token defined in the config.yml file that allows
+	// a request to perform any action aganist the daemon.
+	token string
+}
+
+func (rt *Router) AuthenticateRequest(h httprouter.Handle) httprouter.Handle {
+	return rt.AuthenticateToken(rt.AuthenticateServer(h))
+}
+
+// Middleware to protect server specific routes. This will ensure that the server exists and
+// is in a state that allows it to be exposed to the API.
+func (rt *Router) AuthenticateServer(h httprouter.Handle) httprouter.Handle {
+	return func(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
+		if rt.GetServer(ps.ByName("server")) != nil {
+			h(w, r, ps)
+			return
+		}
+
+		http.NotFound(w, r)
+	}
+}
+
+// Attaches required access control headers to all of the requests.
+func (rt *Router) AttachAccessControlHeaders(w http.ResponseWriter, r *http.Request, ps httprouter.Params) (http.ResponseWriter, *http.Request, httprouter.Params) {
+	w.Header().Set("Access-Control-Allow-Origin", config.Get().PanelLocation)
+	w.Header().Set("Access-Control-Allow-Headers", "Accept, Content-Type, Content-Length, Accept-Encoding, X-CSRF-Token, Authorization")
+
+	return w, r, ps
+}
+
+// Authenticates the request token aganist the given permission string, ensuring that
+// if it is a server permission, the token has control over that server. If it is a global
+// token, this will ensure that the request is using a properly signed global token.
+func (rt *Router) AuthenticateToken(h httprouter.Handle) httprouter.Handle {
+	return func(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
+		// Adds support for using this middleware on the websocket routes for servers. Those
+		// routes don't support Authorization headers, per the spec, so we abuse the socket
+		// protocol header and use that to pass the authorization token along to Wings without
+		// exposing the token in the URL directly. Neat. 📸
+		auth := strings.SplitN(r.Header.Get("Authorization"), " ", 2)
+
+		if len(auth) != 2 || auth[0] != "Bearer" {
+			w.Header().Set("WWW-Authenticate", "Bearer")
+			http.Error(w, "authorization failed", http.StatusUnauthorized)
+			return
+		}
+
+		// Try to match the request aganist the global token for the Daemon, regardless
+		// of the permission type. If nothing is matched we will fall through to the Panel
+		// API to try and validate permissions for a server.
+		if auth[1] == rt.token {
+			h(rt.AttachAccessControlHeaders(w, r, ps))
+			return
+		}
+
+		// Happens because we don't have any of the server handling code here.
+		http.Error(w, "not implemented", http.StatusNotImplemented)
+		return
+	}
+}
+
+// Returns the basic Wings index page without anything else.
+func (rt *Router) routeIndex(w http.ResponseWriter, _ *http.Request, _ httprouter.Params) {
+	fmt.Fprint(w, "Welcome!\n")
+}
+
+// Returns all of the servers that exist on the Daemon. This route is only accessible to
+// requests that include an administrative control key, otherwise a 404 is returned. This
+// authentication is handled by a middleware.
+func (rt *Router) routeAllServers(w http.ResponseWriter, _ *http.Request, _ httprouter.Params) {
+	json.NewEncoder(w).Encode(server.GetServers().All())
+}
+
+// Returns basic information about a single server found on the Daemon.
+func (rt *Router) routeServer(w http.ResponseWriter, _ *http.Request, ps httprouter.Params) {
+	s := rt.GetServer(ps.ByName("server"))
+
+	json.NewEncoder(w).Encode(s)
+}
+
+type PowerActionRequest struct {
+	Action string `json:"action"`
+}
+
+type CreateDirectoryRequest struct {
+	Name string `json:"name"`
+	Path string `json:"path"`
+}
+
+func (pr *PowerActionRequest) IsValid() bool {
+	return pr.Action == "start" || pr.Action == "stop" || pr.Action == "kill" || pr.Action == "restart"
+}
+
+// Handles a request to control the power state of a server. If the action being passed
+// through is invalid a 404 is returned. Otherwise, a HTTP/202 Accepted response is returned
+// and the actual power action is run asynchronously so that we don't have to block the
+// request until a potentially slow operation completes.
+//
+// This is done because for the most part the Panel is using websockets to determine when
+// things are happening, so theres no reason to sit and wait for a request to finish. We'll
+// just see over the socket if something isn't working correctly.
+func (rt *Router) routeServerPower(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
+	s := rt.GetServer(ps.ByName("server"))
+	defer r.Body.Close()
+
+	dec := json.NewDecoder(r.Body)
+	var action PowerActionRequest
+
+	if err := dec.Decode(&action); err != nil {
+		// Don't flood the logs with error messages if someone sends through bad
+		// JSON data. We don't really care.
+		if err != io.EOF && err != io.ErrUnexpectedEOF {
+			zap.S().Errorw("failed to decode power action", zap.Error(err))
+		}
+
+		http.Error(w, "could not parse power action from request", http.StatusInternalServerError)
+		return
+	}
+
+	if !action.IsValid() {
+		http.NotFound(w, r)
+		return
+	}
+
+	// Because we route all of the actual bootup process to a seperate thread we need to
+	// check the suspension status here, otherwise the user will hit the endpoint and then
+	// just sit there wondering why it returns a success but nothing actually happens.
+	//
+	// We don't really care about any of the other actions at this point, they'll all result
+	// in the process being stopped, which should have happened anyways if the server is suspended.
+	if action.Action == "start" && s.Suspended {
+		http.Error(w, "server is suspended", http.StatusBadRequest)
+		return
+	}
+
+	// Pass the actual heavy processing off to a seperate thread to handle so that
+	// we can immediately return a response from the server.
+	go func(a string, s *server.Server) {
+		switch a {
+		case "start":
+			if err := s.Environment.Start(); err != nil {
+				zap.S().Errorw(
+					"encountered unexpected error starting server process",
+					zap.Error(err),
+					zap.String("server", s.Uuid),
+					zap.String("action", "start"),
+				)
+			}
+			break
+		case "stop":
+			if err := s.Environment.Stop(); err != nil {
+				zap.S().Errorw(
+					"encountered unexpected error stopping server process",
+					zap.Error(err),
+					zap.String("server", s.Uuid),
+					zap.String("action", "stop"),
+				)
+			}
+			break
+		case "restart":
+			break
+		case "kill":
+			if err := s.Environment.Terminate(os.Kill); err != nil {
+				zap.S().Errorw(
+					"encountered unexpected error killing server process",
+					zap.Error(err),
+					zap.String("server", s.Uuid),
+					zap.String("action", "kill"),
+				)
+			}
+		}
+	}(action.Action, s)
+
+	w.WriteHeader(http.StatusAccepted)
+}
+
+// Return the last 1Kb of the server log file.
+func (rt *Router) routeServerLogs(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
+	s := rt.GetServer(ps.ByName("server"))
+
+	l, _ := strconv.ParseInt(r.URL.Query().Get("size"), 10, 64)
+	if l <= 0 {
+		l = 2048
+	}
+
+	out, err := s.ReadLogfile(l)
+	if err != nil {
+		zap.S().Errorw("failed to read server log file", zap.Error(err))
+		http.Error(w, "failed to read log", http.StatusInternalServerError)
+		return
+	}
+
+	json.NewEncoder(w).Encode(struct{ Data []string `json:"data"` }{Data: out})
+}
+
+// Handle a request to get the contents of a file on the server.
+func (rt *Router) routeServerFileRead(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
+	s := rt.GetServer(ps.ByName("server"))
+
+	cleaned, err := s.Filesystem.SafePath(r.URL.Query().Get("file"))
+	if err != nil {
+		http.NotFound(w, r)
+		return
+	}
+
+	st, err := s.Filesystem.Stat(cleaned)
+	if err != nil {
+		if !os.IsNotExist(err) {
+			zap.S().Errorw("failed to stat file for reading", zap.String("path", ps.ByName("path")), zap.String("server", s.Uuid), zap.Error(err))
+
+			http.Error(w, "failed to stat file", http.StatusInternalServerError)
+			return
+		}
+
+		http.NotFound(w, r)
+		return
+	}
+
+	f, err := os.OpenFile(cleaned, os.O_RDONLY, 0)
+	if err != nil {
+		if !os.IsNotExist(err) {
+			zap.S().Errorw("failed to open file for reading", zap.String("path", ps.ByName("path")), zap.String("server", s.Uuid), zap.Error(err))
+		}
+
+		http.Error(w, "failed to open file", http.StatusInternalServerError)
+		return
+	}
+	defer f.Close()
+
+	w.Header().Set("X-Mime-Type", st.Mimetype)
+	w.Header().Set("Content-Length", strconv.Itoa(int(st.Info.Size())))
+
+	// If a download parameter is included in the URL go ahead and attach the necessary headers
+	// so that the file can be downloaded.
+	if r.URL.Query().Get("download") != "" {
+		w.Header().Set("Content-Disposition", "attachment; filename="+st.Info.Name())
+		w.Header().Set("Content-Type", "application/octet-stream")
+	}
+
+	bufio.NewReader(f).WriteTo(w)
+}
+
+// Lists the contents of a directory.
+func (rt *Router) routeServerListDirectory(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
+	s := rt.GetServer(ps.ByName("server"))
+
+	stats, err := s.Filesystem.ListDirectory(r.URL.Query().Get("directory"))
+	if os.IsNotExist(err) {
+		http.NotFound(w, r)
+		return
+	} else if err != nil {
+		zap.S().Errorw("failed to list contents of directory", zap.String("server", s.Uuid), zap.String("path", ps.ByName("path")), zap.Error(err))
+
+		http.Error(w, "failed to list directory", http.StatusInternalServerError)
+		return
+	}
+
+	json.NewEncoder(w).Encode(stats)
+}
+
+// Writes a file to the system for the server.
+func (rt *Router) routeServerWriteFile(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
+	s := rt.GetServer(ps.ByName("server"))
+
+	p := r.URL.Query().Get("file")
+	defer r.Body.Close()
+	err := s.Filesystem.Writefile(p, r.Body)
+
+	if err != nil {
+		zap.S().Errorw("failed to write file to directory", zap.String("server", s.Uuid), zap.String("path", p), zap.Error(err))
+
+		http.Error(w, "failed to write file to directory", http.StatusInternalServerError)
+		return
+	}
+
+	w.WriteHeader(http.StatusNoContent)
+}
+
+// Creates a new directory for the server.
+func (rt *Router) routeServerCreateDirectory(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
+	s := rt.GetServer(ps.ByName("server"))
+	defer r.Body.Close()
+
+	dec := json.NewDecoder(r.Body)
+	var data CreateDirectoryRequest
+
+	if err := dec.Decode(&data); err != nil {
+		// Don't flood the logs with error messages if someone sends through bad
+		// JSON data. We don't really care.
+		if err != io.EOF && err != io.ErrUnexpectedEOF {
+			zap.S().Errorw("failed to decode directory creation data", zap.Error(err))
+		}
+
+		http.Error(w, "could not parse data in request", http.StatusUnprocessableEntity)
+		return
+	}
+
+	if err := s.Filesystem.CreateDirectory(data.Name, data.Path); err != nil {
+		zap.S().Errorw("failed to create directory for server", zap.String("server", s.Uuid), zap.Error(err))
+
+		http.Error(w, "an error was encountered while creating the directory", http.StatusInternalServerError)
+		return
+	}
+
+	w.WriteHeader(http.StatusNoContent)
+}
+
+func (rt *Router) routeServerRenameFile(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
+	s := rt.GetServer(ps.ByName("server"))
+	defer r.Body.Close()
+
+	data := rt.ReaderToBytes(r.Body)
+	oldPath, _ := jsonparser.GetString(data, "rename_from")
+	newPath, _ := jsonparser.GetString(data, "rename_to")
+
+	if oldPath == "" || newPath == "" {
+		http.Error(w, "invalid paths provided; did you forget to provide an old path and new path?", http.StatusUnprocessableEntity)
+		return
+	}
+
+	if err := s.Filesystem.Rename(oldPath, newPath); err != nil {
+		zap.S().Errorw("failed to rename file on server", zap.String("server", s.Uuid), zap.Error(err))
+
+		http.Error(w, "an error occurred while renaming the file", http.StatusInternalServerError)
+		return
+	}
+
+	w.WriteHeader(http.StatusNoContent)
+}
+
+func (rt *Router) routeServerCopyFile(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
+	s := rt.GetServer(ps.ByName("server"))
+	defer r.Body.Close()
+
+	data := rt.ReaderToBytes(r.Body)
+	loc, _ := jsonparser.GetString(data, "location")
+
+	if err := s.Filesystem.Copy(loc); err != nil {
+		zap.S().Errorw("error copying file for server", zap.String("server", s.Uuid), zap.Error(err))
+
+		http.Error(w, "an error occurred while copying the file", http.StatusInternalServerError)
+		return
+	}
+
+	w.WriteHeader(http.StatusNoContent)
+}
+
+func (rt *Router) routeServerDeleteFile(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
+	s := rt.GetServer(ps.ByName("server"))
+	defer r.Body.Close()
+
+	data := rt.ReaderToBytes(r.Body)
+	loc, _ := jsonparser.GetString(data, "location")
+
+	if err := s.Filesystem.Delete(loc); err != nil {
+		zap.S().Errorw("failed to delete a file or directory for server", zap.String("server", s.Uuid), zap.Error(err))
+
+		http.Error(w, "an error occurred while trying to delete a file or directory", http.StatusInternalServerError)
+		return
+	}
+
+	w.WriteHeader(http.StatusNoContent)
+}
+
+func (rt *Router) routeServerSendCommand(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
+	s := rt.GetServer(ps.ByName("server"))
+	defer r.Body.Close()
+
+	if running, err := s.Environment.IsRunning(); !running || err != nil {
+		http.Error(w, "cannot send commands to a stopped instance", http.StatusBadGateway)
+		return
+	}
+
+	data := rt.ReaderToBytes(r.Body)
+	commands, dt, _, _ := jsonparser.Get(data, "commands")
+	if dt != jsonparser.Array {
+		http.Error(w, "commands must be an array of strings", http.StatusUnprocessableEntity)
+		return
+	}
+
+	for _, command := range commands {
+		if err := s.Environment.SendCommand(string(command)); err != nil {
+			zap.S().Warnw("failed to send command to server", zap.Any("command", command), zap.Error(err))
+			return
+		}
+	}
+
+	w.WriteHeader(http.StatusNoContent)
+}
+
+func (rt *Router) routeServerUpdate(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
+	s := rt.GetServer(ps.ByName("server"))
+	defer r.Body.Close()
+
+	data := rt.ReaderToBytes(r.Body)
+	if err := s.UpdateDataStructure(data, true); err != nil {
+		zap.S().Errorw("failed to update a server's data structure", zap.String("server", s.Uuid), zap.Error(err))
+
+		http.Error(w, "failed to update data structure", http.StatusInternalServerError)
+		return
+	}
+
+	w.WriteHeader(http.StatusNoContent)
+}
+
+func (rt *Router) routeCreateServer(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
+	defer r.Body.Close()
+
+	inst, err := installer.New(rt.ReaderToBytes(r.Body))
+
+	if err != nil {
+		zap.S().Warnw("failed to validate the received data", zap.Error(err))
+
+		http.Error(w, "failed to validate data", http.StatusUnprocessableEntity)
+		return
+	}
+
+	// Plop that server instance onto the request so that it can be referenced in
+	// requests from here-on out.
+	server.GetServers().Add(inst.Server())
+
+	// Begin the installation process in the background to not block the request
+	// cycle. If there are any errors they will be logged and communicated back
+	// to the Panel where a reinstall may take place.
+	zap.S().Infow("beginning installation process for server", zap.String("server", inst.Uuid()))
+	go inst.Execute()
+
+	w.WriteHeader(http.StatusAccepted)
+}
+
+func (rt *Router) routeSystemInformation(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
+	defer r.Body.Close()
+
+	s, err := GetSystemInformation()
+	if err != nil {
+		zap.S().Errorw("failed to retrieve system information", zap.Error(errors.WithStack(err)))
+
+		http.Error(w, "failed to retrieve information", http.StatusInternalServerError)
+		return
+	}
+
+	json.NewEncoder(w).Encode(s)
+}
+
+func (rt *Router) routeServerDelete(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
+	s := rt.GetServer(ps.ByName("server"))
+	defer r.Body.Close()
+
+	// Immediately suspend the server to prevent a user from attempting
+	// to start it while this process is running.
+	s.Suspended = true
+
+	// Destroy the environment; in Docker this will handle a running container and
+	// forcibly terminate it before removing the container, so we do not need to handle
+	// that here.
+	if err := s.Environment.Destroy(); err != nil {
+		zap.S().Errorw("failed to destroy server environment", zap.Error(errors.WithStack(err)))
+
+		http.Error(w, "failed to destroy server environment", http.StatusInternalServerError)
+		return
+	}
+
+	// Once the environment is terminated, remove the server files from the system. This is
+	// done in a seperate process since failure is not the end of the world and can be
+	// manually cleaned up after the fact.
+	//
+	// In addition, servers with large amounts of files can take some time to finish deleting
+	// so we don't want to block the HTTP call while waiting on this.
+	go func(p string) {
+		if err := os.RemoveAll(p); err != nil {
+			zap.S().Warnw("failed to remove server files on deletion", zap.String("path", p), zap.Error(errors.WithStack(err)))
+		}
+	}(s.Filesystem.Path())
+
+	var uuid = s.Uuid
+	server.GetServers().Remove(func(s2 *server.Server) bool {
+		return s2.Uuid == uuid
+	})
+
+	s = nil
+
+	// Remove the configuration file stored on the Daemon for this server.
+	go func(u string) {
+		if err := os.Remove("data/servers/" + u + ".yml"); err != nil {
+			zap.S().Warnw("failed to delete server configuration file on deletion", zap.String("server", u), zap.Error(errors.WithStack(err)))
+		}
+	}(uuid)
+
+	w.WriteHeader(http.StatusAccepted)
+}
+
+func (rt *Router) ReaderToBytes(r io.Reader) []byte {
+	buf := bytes.Buffer{}
+	buf.ReadFrom(r)
+
+	return buf.Bytes()
+}
+
+// Configures the router and all of the associated routes.
+func (rt *Router) ConfigureRouter() *httprouter.Router {
+	router := httprouter.New()
+
+	router.OPTIONS("/api/system", func(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
+		rt.AttachAccessControlHeaders(w, r, ps)
+	})
+
+	router.GET("/", rt.routeIndex)
+	router.GET("/api/system", rt.AuthenticateToken(rt.routeSystemInformation))
+	router.GET("/api/servers", rt.AuthenticateToken(rt.routeAllServers))
+	router.GET("/api/servers/:server", rt.AuthenticateRequest(rt.routeServer))
+	router.GET("/api/servers/:server/ws", rt.AuthenticateServer(rt.routeWebsocket))
+	router.GET("/api/servers/:server/logs", rt.AuthenticateRequest(rt.routeServerLogs))
+	router.GET("/api/servers/:server/files/contents", rt.AuthenticateRequest(rt.routeServerFileRead))
+	router.GET("/api/servers/:server/files/list-directory", rt.AuthenticateRequest(rt.routeServerListDirectory))
+	router.PUT("/api/servers/:server/files/rename", rt.AuthenticateRequest(rt.routeServerRenameFile))
+	router.POST("/api/servers", rt.AuthenticateToken(rt.routeCreateServer));
+	router.POST("/api/servers/:server/files/copy", rt.AuthenticateRequest(rt.routeServerCopyFile))
+	router.POST("/api/servers/:server/files/write", rt.AuthenticateRequest(rt.routeServerWriteFile))
+	router.POST("/api/servers/:server/files/create-directory", rt.AuthenticateRequest(rt.routeServerCreateDirectory))
+	router.POST("/api/servers/:server/files/delete", rt.AuthenticateRequest(rt.routeServerDeleteFile))
+	router.POST("/api/servers/:server/power", rt.AuthenticateRequest(rt.routeServerPower))
+	router.POST("/api/servers/:server/commands", rt.AuthenticateRequest(rt.routeServerSendCommand))
+	router.PATCH("/api/servers/:server", rt.AuthenticateRequest(rt.routeServerUpdate))
+	router.DELETE("/api/servers/:server", rt.AuthenticateRequest(rt.routeServerDelete))
+
+	return router
+}

installer/errors.go

@@ -1,19 +0,0 @@
-package installer
-
-type validationError struct {
-	msg string
-}
-
-func (e *validationError) Error() string {
-	return e.msg
-}
-
-func IsValidationError(err error) bool {
-	_, ok := err.(*validationError)
-
-	return ok
-}
-
-func NewValidationError(msg string) error {
-	return &validationError{msg: msg}
-}

installer/installer.go

@@ -2,16 +2,12 @@ package installer
 
 import (
 	"encoding/json"
-	"github.com/apex/log"
 	"github.com/asaskevich/govalidator"
 	"github.com/buger/jsonparser"
 	"github.com/pkg/errors"
-	"github.com/pterodactyl/wings/api"
 	"github.com/pterodactyl/wings/config"
-	"github.com/pterodactyl/wings/environment"
 	"github.com/pterodactyl/wings/server"
-	"os"
-	"path"
+	"go.uber.org/zap"
 )
 
 type Installer struct {
@@ -23,37 +19,42 @@ type Installer struct {
 // calling Execute().
 func New(data []byte) (*Installer, error) {
 	if !govalidator.IsUUIDv4(getString(data, "uuid")) {
-		return nil, NewValidationError("uuid provided was not in a valid format")
+		return nil, errors.New("uuid provided was not in a valid format")
 	}
 
 	if !govalidator.IsUUIDv4(getString(data, "service", "egg")) {
-		return nil, NewValidationError("service egg provided was not in a valid format")
+		return nil, errors.New("service egg provided was not in a valid format")
 	}
 
-	cfg := &server.Configuration{
+	s := &server.Server{
 		Uuid:       getString(data, "uuid"),
 		Suspended:  false,
+		State:      server.ProcessOfflineState,
 		Invocation: getString(data, "invocation"),
-		Build: environment.Limits{
+		EnvVars:    make(map[string]string),
+		Build: server.BuildSettings{
 			MemoryLimit: getInt(data, "build", "memory"),
 			Swap:        getInt(data, "build", "swap"),
 			IoWeight:    uint16(getInt(data, "build", "io")),
 			CpuLimit:    getInt(data, "build", "cpu"),
 			DiskSpace:   getInt(data, "build", "disk"),
-			Threads:     getString(data, "build", "threads"),
 		},
-		CrashDetectionEnabled: true,
+		Allocations: server.Allocations{
+			Mappings: make(map[string][]int),
+		},
 	}
 
-	cfg.Allocations.DefaultMapping.Ip = getString(data, "allocations", "default", "ip")
-	cfg.Allocations.DefaultMapping.Port = int(getInt(data, "allocations", "default", "port"))
+	s.Init()
+
+	s.Allocations.DefaultMapping.Ip = getString(data, "allocations", "default", "ip")
+	s.Allocations.DefaultMapping.Port = int(getInt(data, "allocations", "default", "port"))
 
 	// Unmarshal the environment variables from the request into the server struct.
 	if b, _, _, err := jsonparser.Get(data, "environment"); err != nil {
 		return nil, errors.WithStack(err)
 	} else {
-		cfg.EnvVars = make(environment.Variables)
-		if err := json.Unmarshal(b, &cfg.EnvVars); err != nil {
+		s.EnvVars = make(map[string]string)
+		if err := json.Unmarshal(b, &s.EnvVars); err != nil {
 			return nil, errors.WithStack(err)
 		}
 	}
@@ -62,35 +63,34 @@ func New(data []byte) (*Installer, error) {
 	if b, _, _, err := jsonparser.Get(data, "allocations", "mappings"); err != nil {
 		return nil, errors.WithStack(err)
 	} else {
-		cfg.Allocations.Mappings = make(map[string][]int)
-		if err := json.Unmarshal(b, &cfg.Allocations.Mappings); err != nil {
+		s.Allocations.Mappings = make(map[string][]int)
+		if err := json.Unmarshal(b, &s.Allocations.Mappings); err != nil {
 			return nil, errors.WithStack(err)
 		}
 	}
 
-	cfg.Container.Image = getString(data, "container", "image")
+	s.Container.Image = getString(data, "container", "image")
 
-	c, rerr, err := api.NewRequester().GetServerConfiguration(cfg.Uuid)
-	if err != nil || rerr != nil {
+	b, err := s.WriteConfigurationToDisk()
 	if err != nil {
-			return nil, errors.WithStack(err)
+		return nil, err
 	}
 
-		return nil, errors.New(rerr.String())
-	}
+	// Destroy the temporary server instance.
+	s = nil
 
 	// Create a new server instance using the configuration we wrote to the disk
 	// so that everything gets instantiated correctly on the struct.
-	s, err := server.FromConfiguration(c)
+	s2, err := server.FromConfiguration(b, &config.Get().System)
 
 	return &Installer{
-		server: s,
+		server: s2,
 	}, err
 }
 
 // Returns the UUID associated with this installer instance.
 func (i *Installer) Uuid() string {
-	return i.server.Id()
+	return i.server.Uuid
 }
 
 // Return the server instance.
@@ -102,28 +102,13 @@ func (i *Installer) Server() *server.Server {
 // associated installation process based on the parameters passed through for
 // the server instance.
 func (i *Installer) Execute() {
-	p := path.Join(config.Get().System.Data, i.Uuid())
-	l := log.WithFields(log.Fields{"server": i.Uuid(), "process": "installer"})
-
-	l.WithField("path", p).Debug("creating required server data directory")
-	if err := os.MkdirAll(p, 0755); err != nil {
-		l.WithFields(log.Fields{"path": p, "error": errors.WithStack(err)}).Error("failed to create server data directory")
-		return
-	}
-
-	if err := os.Chown(p, config.Get().System.User.Uid, config.Get().System.User.Gid); err != nil {
-		l.WithField("error", errors.WithStack(err)).Error("failed to chown server data directory")
-		return
-	}
-
-	l.Debug("creating required environment for server instance")
-	// TODO: ensure data directory exists.
+	zap.S().Debugw("creating required environment for server instance", zap.String("server", i.Uuid()))
 	if err := i.server.Environment.Create(); err != nil {
-		l.WithField("error", err).Error("failed to create environment for server")
+		zap.S().Errorw("failed to create environment for server", zap.String("server", i.Uuid()), zap.Error(err))
 		return
 	}
 
-	l.Info("successfully created environment for server during install process")
+	zap.S().Debugw("created environment for server during install process", zap.String("server", i.Uuid()))
 }
 
 // Returns a string value from the JSON data provided.

loggers/cli/cli.go

@@ -1,114 +0,0 @@
-package cli
-
-import (
-	"fmt"
-	"github.com/apex/log"
-	"github.com/apex/log/handlers/cli"
-	color2 "github.com/fatih/color"
-	"github.com/mattn/go-colorable"
-	"github.com/pkg/errors"
-	"io"
-	"os"
-	"sync"
-	"time"
-)
-
-var Default = New(os.Stderr, true)
-
-var bold = color2.New(color2.Bold)
-
-var Strings = [...]string{
-	log.DebugLevel: "DEBUG",
-	log.InfoLevel:  " INFO",
-	log.WarnLevel:  " WARN",
-	log.ErrorLevel: "ERROR",
-	log.FatalLevel: "FATAL",
-}
-
-type Handler struct {
-	mu      sync.Mutex
-	Writer  io.Writer
-	Padding int
-}
-
-func New(w io.Writer, useColors bool) *Handler {
-	if f, ok := w.(*os.File); ok {
-		if useColors {
-			return &Handler{Writer: colorable.NewColorable(f), Padding: 2}
-		}
-	}
-
-	return &Handler{Writer: colorable.NewNonColorable(w), Padding: 2}
-}
-
-type tracer interface {
-	StackTrace() errors.StackTrace
-}
-
-// HandleLog implements log.Handler.
-func (h *Handler) HandleLog(e *log.Entry) error {
-	color := cli.Colors[e.Level]
-	level := Strings[e.Level]
-	names := e.Fields.Names()
-
-	h.mu.Lock()
-	defer h.mu.Unlock()
-
-	color.Fprintf(h.Writer, "%s: [%s] %-25s", bold.Sprintf("%*s", h.Padding+1, level), time.Now().Format(time.StampMilli), e.Message)
-
-	for _, name := range names {
-		if name == "source" {
-			continue
-		}
-
-		fmt.Fprintf(h.Writer, " %s=%v", color.Sprint(name), e.Fields.Get(name))
-	}
-
-	fmt.Fprintln(h.Writer)
-
-	for _, name := range names {
-		if name != "error" {
-			continue
-		}
-
-		var br = color2.New(color2.Bold, color2.FgRed)
-		if err, ok := e.Fields.Get("error").(error); ok {
-			fmt.Fprintf(h.Writer, "\n%s%+v\n\n", br.Sprintf("Stacktrace:"), getErrorStack(err, false))
-		} else {
-			fmt.Fprintf(h.Writer, "\n%s%+v\n\n", br.Sprintf("Invalid Error:"), err)
-		}
-	}
-
-	return nil
-}
-
-func getErrorStack(err error, i bool) errors.StackTrace {
-	e, ok := err.(tracer)
-	if !ok {
-		if i {
-			// Just abort out of this and return a stacktrace leading up to this point. It isn't perfect
-			// but it'll at least include what function lead to this being called which we can then handle.
-			return errors.Wrap(err, "failed to generate stacktrace for caught error").(tracer).StackTrace()
-		}
-
-		return getErrorStack(errors.Wrap(err, err.Error()), true)
-	}
-
-	st := e.StackTrace()
-
-	l := len(st)
-	// If this was an internal stack generation we're going to skip over the top four items in the stack
-	// trace since they'll point to the error that was generated by this function.
-	f := 0
-	if i {
-		f = 4
-	}
-
-	if i && l > 9 {
-		l = 9
-	} else if !i && l > 5 {
-		l = 5
-	}
-
-	return st[f:l]
-}

parser/helpers.go

@@ -1,9 +1,7 @@
 package parser
 
 import (
-	"bytes"
 	"github.com/Jeffail/gabs/v2"
-	"github.com/apex/log"
 	"github.com/buger/jsonparser"
 	"github.com/iancoleman/strcase"
 	"github.com/pkg/errors"
@@ -46,20 +44,32 @@ func readFileBytes(path string) ([]byte, error) {
 	return ioutil.ReadAll(file)
 }
 
+// Helper function to set the value of the JSON key item based on the jsonparser value
+// type returned.
+func setPathway(c *gabs.Container, path string, value []byte, vt jsonparser.ValueType) error {
+	v := getKeyValue(value, vt)
+
+	_, err := c.SetP(v, path)
+
+	return err
+}
+
 // Gets the value of a key based on the value type defined.
-func (cfr *ConfigurationFileReplacement) getKeyValue(value []byte) interface{} {
-	if cfr.ReplaceWith.Type() == jsonparser.Boolean {
+func getKeyValue(value []byte, vt jsonparser.ValueType) interface{} {
+	switch vt {
+	case jsonparser.Number:
+		{
+			v, _ := strconv.Atoi(string(value))
+			return v
+		}
+	case jsonparser.Boolean:
+		{
 			v, _ := strconv.ParseBool(string(value))
 			return v
 		}
-
-	// Try to parse into an int, if this fails just ignore the error and continue
-	// through, returning the string.
-	if v, err := strconv.Atoi(string(value)); err == nil {
-		return v
-	}
-
+	default:
 		return string(value)
+	}
 }
 
 // Iterate over an unstructured JSON/YAML/etc. interface and set all of the required
@@ -70,9 +80,7 @@ func (cfr *ConfigurationFileReplacement) getKeyValue(value []byte) interface{} {
 // configurations per-world (such as Spigot and Bungeecord) where we'll need to make
 // adjustments to the bind address for the user.
 //
-// This does not currently support nested wildcard matches. For example, foo.*.bar
-// will work, however foo.*.bar.*.baz will not, since we'll only be splitting at the
-// first wildcard, and not subsequent ones.
+// This does not currently support nested matches. container.*.foo.*.bar will not work.
 func (f *ConfigurationFile) IterateOverJson(data []byte) (*gabs.Container, error) {
 	parsed, err := gabs.ParseJSON(data)
 	if err != nil {
@@ -80,7 +88,7 @@ func (f *ConfigurationFile) IterateOverJson(data []byte) (*gabs.Container, error
 	}
 
 	for _, v := range f.Replace {
-		value, err := f.LookupConfigurationValue(v)
+		value, dt, err := f.LookupConfigurationValue(v)
 		if err != nil {
 			return nil, err
 		}
@@ -96,12 +104,12 @@ func (f *ConfigurationFile) IterateOverJson(data []byte) (*gabs.Container, error
 			// If the child is a null value, nothing will happen. Seems reasonable as of the
 			// time this code is being written.
 			for _, child := range parsed.Path(strings.Trim(parts[0], ".")).Children() {
-				if err := v.SetAtPathway(child, strings.Trim(parts[1], "."), []byte(value)); err != nil {
+				if err := setPathway(child, strings.Trim(parts[1], "."), value, dt); err != nil {
 					return nil, err
 				}
 			}
 		} else {
-			if err = v.SetAtPathway(parsed, v.Match, []byte(value)); err != nil {
+			if err = setPathway(parsed, v.Match, value, dt); err != nil {
 				return nil, err
 			}
 		}
@@ -110,79 +118,41 @@ func (f *ConfigurationFile) IterateOverJson(data []byte) (*gabs.Container, error
 	return parsed, nil
 }
 
-// Sets the value at a specific pathway, but checks if we were looking for a specific
-// value or not before doing it.
-func (cfr *ConfigurationFileReplacement) SetAtPathway(c *gabs.Container, path string, value []byte) error {
-	if cfr.IfValue != "" {
-		// If this is a regex based matching, we need to get a little more creative since
-		// we're only going to replacing part of the string, and not the whole thing.
-		if c.Exists(path) && strings.HasPrefix(cfr.IfValue, "regex:") {
-			// We're doing some regex here.
-			r, err := regexp.Compile(strings.TrimPrefix(cfr.IfValue, "regex:"))
-			if err != nil {
-				log.WithFields(log.Fields{"if_value": strings.TrimPrefix(cfr.IfValue, "regex:"), "error": err}).
-					Warn("configuration if_value using invalid regexp, cannot perform replacement")
-
-				return nil
-			}
-
-			// If the path exists and there is a regex match, go ahead and attempt the replacement
-			// using the value we got from the key. This will only replace the one match.
-			v := strings.Trim(string(c.Path(path).Bytes()), "\"")
-			if r.Match([]byte(v)) {
-				_, err := c.SetP(r.ReplaceAllString(v, string(value)), path)
-
-				return err
-			}
-
-			return nil
-		} else {
-			if !c.Exists(path) || (c.Exists(path) && !bytes.Equal(c.Bytes(), []byte(cfr.IfValue))) {
-				return nil
-			}
-		}
-	}
-
-	_, err := c.SetP(cfr.getKeyValue(value), path)
-
-	return err
-}
-
 // Looks up a configuration value on the Daemon given a dot-notated syntax.
-func (f *ConfigurationFile) LookupConfigurationValue(cfr ConfigurationFileReplacement) (string, error) {
-	// If this is not something that we can do a regex lookup on then just continue
-	// on our merry way. If the value isn't a string, we're not going to be doing anything
-	// with it anyways.
-	if cfr.ReplaceWith.Type() != jsonparser.String || !configMatchRegex.Match(cfr.ReplaceWith.Value()) {
-		return cfr.ReplaceWith.String(), nil
+func (f *ConfigurationFile) LookupConfigurationValue(cfr ConfigurationFileReplacement) ([]byte, jsonparser.ValueType, error) {
+	if !configMatchRegex.Match([]byte(cfr.Value)) {
+		return []byte(cfr.Value), cfr.ValueType, nil
 	}
 
 	// If there is a match, lookup the value in the configuration for the Daemon. If no key
 	// is found, just return the string representation, otherwise use the value from the
 	// daemon configuration here.
 	huntPath := configMatchRegex.ReplaceAllString(
-		configMatchRegex.FindString(cfr.ReplaceWith.String()), "$1",
+		configMatchRegex.FindString(cfr.Value), "$1",
 	)
 
 	var path []string
+	// The camel casing is important here, the configuration for the Daemon does not use
+	// JSON, and as such all of the keys will be generated in CamelCase format, rather than
+	// the expected snake_case from the old Daemon.
 	for _, value := range strings.Split(huntPath, ".") {
-		path = append(path, strcase.ToSnake(value))
+		path = append(path, strcase.ToCamel(value))
 	}
 
 	// Look for the key in the configuration file, and if found return that value to the
 	// calling function.
-	match, _, _, err := jsonparser.Get(f.configuration, path...)
+	match, dt, _, err := jsonparser.Get(f.configuration, path...)
 	if err != nil {
 		if err != jsonparser.KeyPathNotFoundError {
-			return string(match), errors.WithStack(err)
+			return match, dt, errors.WithStack(err)
 		}
 
-		log.WithFields(log.Fields{"path": path, "filename": f.FileName}).Debug("attempted to load a configuration value that does not exist")
-
 		// If there is no key, keep the original value intact, that way it is obvious there
 		// is a replace issue at play.
-		return string(match), nil
+		return []byte(cfr.Value), cfr.ValueType, nil
 	} else {
-		return configMatchRegex.ReplaceAllString(cfr.ReplaceWith.String(), string(match)), nil
+		replaced := []byte(configMatchRegex.ReplaceAllString(cfr.Value, string(match)))
+
+		return replaced, cfr.ValueType, nil
 	}
 }

parser/parser.go

@@ -4,18 +4,16 @@ import (
 	"bufio"
 	"encoding/json"
 	"fmt"
-	"github.com/apex/log"
 	"github.com/beevik/etree"
 	"github.com/buger/jsonparser"
-	"github.com/icza/dyno"
+	"github.com/ghodss/yaml"
 	"github.com/magiconair/properties"
 	"github.com/pkg/errors"
 	"github.com/pterodactyl/wings/config"
+	"go.uber.org/zap"
 	"gopkg.in/ini.v1"
-	"gopkg.in/yaml.v2"
 	"io/ioutil"
 	"os"
-	"regexp"
 	"strings"
 )
 
@@ -31,10 +29,6 @@ const (
 
 type ConfigurationParser string
 
-func (cp ConfigurationParser) String() string {
-	return string(cp)
-}
-
 // Defines a configuration file for the server startup. These will be looped over
 // and modified before the server finishes booting.
 type ConfigurationFile struct {
@@ -47,83 +41,31 @@ type ConfigurationFile struct {
 	configuration []byte
 }
 
-// Custom unmarshaler for configuration files. If there is an error while parsing out the
-// replacements, don't fail the entire operation, just log a global warning so someone can
-// find the issue, and return an empty array of replacements.
-//
-// I imagine people will notice configuration replacement isn't working correctly and then
-// the logs should help better expose that issue.
-func (f *ConfigurationFile) UnmarshalJSON(data []byte) error {
-	var m map[string]*json.RawMessage
-	if err := json.Unmarshal(data, &m); err != nil {
-		return err
-	}
-
-	if err := json.Unmarshal(*m["file"], &f.FileName); err != nil {
-		return err
-	}
-
-	if err := json.Unmarshal(*m["parser"], &f.Parser); err != nil {
-		return err
-	}
-
-	if err := json.Unmarshal(*m["replace"], &f.Replace); err != nil {
-		log.WithField("file", f.FileName).WithField("error", err).Warn("failed to unmarshal configuration file replacement")
-
-		f.Replace = []ConfigurationFileReplacement{}
-	}
-
-	return nil
-}
-
-// Regex to match paths such as foo[1].bar[2] and convert them into a format that
-// gabs can work with, such as foo.1.bar.2 in this case. This is applied when creating
-// the struct for the configuration file replacements.
-var cfrMatchReplacement = regexp.MustCompile(`\[(\d+)]`)
-
 // Defines a single find/replace instance for a given server configuration file.
 type ConfigurationFileReplacement struct {
 	Match     string               `json:"match"`
-	IfValue     string       `json:"if_value"`
-	ReplaceWith ReplaceValue `json:"replace_with"`
+	Value     string               `json:"value"`
+	ValueType jsonparser.ValueType `json:"-"`
 }
 
-// Handles unmarshaling the JSON representation into a struct that provides more useful
-// data to this functionality.
 func (cfr *ConfigurationFileReplacement) UnmarshalJSON(data []byte) error {
-	m, err := jsonparser.GetString(data, "match")
-	if err != nil {
+	if m, err := jsonparser.GetString(data, "match"); err != nil {
 		return err
+	} else {
+		cfr.Match = m
 	}
 
-	// See comment on the replacement regex to understand what exactly this is doing.
-	cfr.Match = cfrMatchReplacement.ReplaceAllString(m, ".$1")
-
-	iv, err := jsonparser.GetString(data, "if_value")
-	// We only check keypath here since match & replace_with should be present on all of
-	// them, however if_value is optional.
-	if err != nil && err != jsonparser.KeyPathNotFoundError {
-		return err
-	}
-	cfr.IfValue = iv
-
-	rw, dt, _, err := jsonparser.Get(data, "replace_with")
-	if err != nil {
-		if err != jsonparser.KeyPathNotFoundError {
+	if v, dt, _, err := jsonparser.Get(data, "value"); err != nil {
 		return err
+	} else {
+		if dt != jsonparser.String && dt != jsonparser.Number && dt != jsonparser.Boolean {
+			return errors.New(
+				fmt.Sprintf("cannot parse JSON: received unexpected replacement value type: %d", dt),
+			)
 		}
 
-		// Okay, likely dealing with someone who forgot to upgrade their eggs, so in
-		// that case, fallback to using the old key which was "value".
-		rw, dt, _, err = jsonparser.Get(data, "value")
-		if err != nil {
-			return err
-		}
-	}
-
-	cfr.ReplaceWith = ReplaceValue{
-		value:     rw,
-		valueType: dt,
+		cfr.Value = string(v)
+		cfr.ValueType = dt
 	}
 
 	return nil
@@ -132,13 +74,10 @@ func (cfr *ConfigurationFileReplacement) UnmarshalJSON(data []byte) error {
 // Parses a given configuration file and updates all of the values within as defined
 // in the API response from the Panel.
 func (f *ConfigurationFile) Parse(path string, internal bool) error {
-	log.WithField("path", path).WithField("parser", f.Parser.String()).Debug("parsing server configuration file")
+	zap.S().Debugw("parsing configuration file", zap.String("path", path), zap.String("parser", string(f.Parser)))
 
-	if mb, err := json.Marshal(config.Get()); err != nil {
-		return err
-	} else {
+	mb, _ := json.Marshal(config.Get())
 	f.configuration = mb
-	}
 
 	var err error
 
@@ -200,7 +139,7 @@ func (f *ConfigurationFile) parseXmlFile(path string) error {
 	}
 
 	for i, replacement := range f.Replace {
-		value, err := f.LookupConfigurationValue(replacement)
+		value, _, err := f.LookupConfigurationValue(replacement)
 		if err != nil {
 			return err
 		}
@@ -237,13 +176,13 @@ func (f *ConfigurationFile) parseXmlFile(path string) error {
 
 		// Iterate over the elements we found and update their values.
 		for _, element := range doc.FindElements(path) {
-			if xmlValueMatchRegex.MatchString(value) {
-				k := xmlValueMatchRegex.ReplaceAllString(value, "$1")
-				v := xmlValueMatchRegex.ReplaceAllString(value, "$2")
+			if xmlValueMatchRegex.Match(value) {
+				k := xmlValueMatchRegex.ReplaceAllString(string(value), "$1")
+				v := xmlValueMatchRegex.ReplaceAllString(string(value), "$2")
 
 				element.CreateAttr(k, v)
 			} else {
-				element.SetText(value)
+				element.SetText(string(value))
 			}
 		}
 	}
@@ -260,11 +199,6 @@ func (f *ConfigurationFile) parseXmlFile(path string) error {
 	// Ensure the XML is indented properly.
 	doc.Indent(2)
 
-	// Truncate the file before attempting to write the changes.
-	if err := os.Truncate(path, 0); err != nil {
-		return err
-	}
-
 	// Write the XML to the file.
 	_, err = doc.WriteTo(file)
 
@@ -274,13 +208,12 @@ func (f *ConfigurationFile) parseXmlFile(path string) error {
 // Parses an ini file.
 func (f *ConfigurationFile) parseIniFile(path string) error {
 	// Ini package can't handle a non-existent file, so handle that automatically here
-	// by creating it if not exists. Then, immediately close the file since we will use
-	// other methods to write the new contents.
-	file, err := os.OpenFile(path, os.O_CREATE|os.O_RDWR, 0644)
+	// by creating it if not exists.
+	file, err := os.OpenFile(path, os.O_CREATE|os.O_RDWR, 0644);
 	if err != nil {
 		return err
 	}
-	file.Close()
+	defer file.Close()
 
 	cfg, err := ini.Load(path)
 	if err != nil {
@@ -290,7 +223,7 @@ func (f *ConfigurationFile) parseIniFile(path string) error {
 	for _, replacement := range f.Replace {
 		path := strings.SplitN(replacement.Match, ".", 2)
 
-		value, err := f.LookupConfigurationValue(replacement)
+		value, _, err := f.LookupConfigurationValue(replacement)
 		if err != nil {
 			return err
 		}
@@ -315,15 +248,19 @@ func (f *ConfigurationFile) parseIniFile(path string) error {
 		// If the key exists in the file go ahead and set the value, otherwise try to
 		// create it in the section.
 		if s.HasKey(k) {
-			s.Key(k).SetValue(value)
+			s.Key(k).SetValue(string(value))
 		} else {
-			if _, err := s.NewKey(k, value); err != nil {
+			if _, err := s.NewKey(k, string(value)); err != nil {
 				return err
 			}
 		}
 	}
 
-	return cfg.SaveTo(path)
+	if _, err := cfg.WriteTo(file); err != nil {
+		return err
+	}
+
+	return nil
 }
 
 // Parses a json file updating any matching key/value pairs. If a match is not found, the
@@ -352,15 +289,10 @@ func (f *ConfigurationFile) parseYamlFile(path string) error {
 		return err
 	}
 
-	i := make(map[string]interface{})
-	if err := yaml.Unmarshal(b, &i); err != nil {
-		return err
-	}
-
 	// Unmarshal the yaml data into a JSON interface such that we can work with
 	// any arbitrary data structure. If we don't do this, I can't use gabs which
 	// makes working with unknown JSON signficiantly easier.
-	jsonBytes, err := json.Marshal(dyno.ConvertMapI2MapS(i))
+	jsonBytes, err := yaml.YAMLToJSON(b)
 	if err != nil {
 		return err
 	}
@@ -373,7 +305,7 @@ func (f *ConfigurationFile) parseYamlFile(path string) error {
 	}
 
 	// Remarshal the JSON into YAML format before saving it back to the disk.
-	marshaled, err := yaml.Marshal(data.Data())
+	marshaled, err := yaml.JSONToYAML(data.Bytes())
 	if err != nil {
 		return err
 	}
@@ -404,7 +336,7 @@ func (f *ConfigurationFile) parseTextFile(path string) error {
 			}
 
 			hasReplaced = true
-			t = strings.Replace(t, replace.Match, replace.ReplaceWith.String(), 1)
+			t = strings.Replace(t, replace.Match, replace.Value, 1)
 		}
 
 		// If there was a replacement that occurred on this specific line, do a write to the file
@@ -432,43 +364,22 @@ func (f *ConfigurationFile) parsePropertiesFile(path string) error {
 	}
 
 	for _, replace := range f.Replace {
-		data, err := f.LookupConfigurationValue(replace)
+		data, _, err := f.LookupConfigurationValue(replace)
 		if err != nil {
 			return err
 		}
 
-		v, ok := p.Get(replace.Match)
-		// Don't attempt to replace the value if we're looking for a specific value and
-		// it does not match. If there was no match at all in the file for this key but
-		// we're doing an IfValue match, do nothing.
-		if replace.IfValue != "" && (!ok || (ok && v != replace.IfValue)) {
-			continue
-		}
-
-		if _, _, err := p.Set(replace.Match, data); err != nil {
+		if _, _, err := p.Set(replace.Match, string(data)); err != nil {
 			return err
 		}
 	}
 
-	w, err := os.OpenFile(path, os.O_CREATE|os.O_WRONLY|os.O_TRUNC, 0644)
+	w, err := os.OpenFile(path, os.O_CREATE|os.O_WRONLY, 0644)
 	if err != nil {
 		return err
 	}
 
-	var s string
-	// This is a copy of the properties.String() func except we don't plop spaces around
-	// the key=value configurations since people like to complain about that.
-	// func (p *Properties) String() string
-	for _, key := range p.Keys() {
-		value, _ := p.Get(key)
+	_, err = p.Write(w, properties.UTF8)
 
-		s = fmt.Sprintf("%s%s=%s\n", s, key, value)
-	}
-
-	// Can't use the properties.Write() function since that doesn't apply our nicer formatting.
-	if _, err := w.Write([]byte(s)); err != nil {
 	return err
-	}
-
-	return nil
 }

parser/value.go

@@ -1,24 +0,0 @@
-package parser
-
-import (
-	"github.com/buger/jsonparser"
-)
-
-type ReplaceValue struct {
-	value     []byte
-	valueType jsonparser.ValueType `json:"-"`
-}
-
-func (cv *ReplaceValue) Value() []byte {
-	return cv.value
-}
-
-func (cv *ReplaceValue) String() string {
-	str, _ := jsonparser.ParseString(cv.value)
-
-	return str
-}
-
-func (cv *ReplaceValue) Type() jsonparser.ValueType {
-	return cv.valueType
-}

router/error.go

@@ -1,101 +0,0 @@
-package router
-
-import (
-	"fmt"
-	"github.com/apex/log"
-	"github.com/gin-gonic/gin"
-	"github.com/google/uuid"
-	"github.com/pkg/errors"
-	"github.com/pterodactyl/wings/server"
-	"net/http"
-	"os"
-)
-
-type RequestError struct {
-	Err     error
-	Uuid    string
-	Message string
-	server  *server.Server
-}
-
-// Generates a new tracked error, which simply tracks the specific error that
-// is being passed in, and also assigned a UUID to the error so that it can be
-// cross referenced in the logs.
-func TrackedError(err error) *RequestError {
-	return &RequestError{
-		Err:     err,
-		Uuid:    uuid.Must(uuid.NewRandom()).String(),
-		Message: "",
-	}
-}
-
-// Same as TrackedError, except this will also attach the server instance that
-// generated this server for the purposes of logging.
-func TrackedServerError(err error, s *server.Server) *RequestError {
-	return &RequestError{
-		Err:     errors.WithStack(err),
-		Uuid:    uuid.Must(uuid.NewRandom()).String(),
-		Message: "",
-		server:  s,
-	}
-}
-
-func (e *RequestError) logger() *log.Entry {
-	if e.server != nil {
-		return e.server.Log().WithField("error_id", e.Uuid)
-	}
-
-	return log.WithField("error_id", e.Uuid)
-}
-
-// Sets the output message to display to the user in the error.
-func (e *RequestError) SetMessage(msg string) *RequestError {
-	e.Message = msg
-	return e
-}
-
-// Aborts the request with the given status code, and responds with the error. This
-// will also include the error UUID in the output so that the user can report that
-// and link the response to a specific error in the logs.
-func (e *RequestError) AbortWithStatus(status int, c *gin.Context) {
-	// If this error is because the resource does not exist, we likely do not need to log
-	// the error anywhere, just return a 404 and move on with our lives.
-	if os.IsNotExist(e.Err) {
-		e.logger().WithField("error", e.Err).Debug("encountered os.IsNotExist error while handling request")
-
-		c.AbortWithStatusJSON(http.StatusNotFound, gin.H{
-			"error": "The requested resource was not found on the system.",
-		})
-		return
-	}
-
-	// Otherwise, log the error to zap, and then report the error back to the user.
-	if status >= 500 {
-		e.logger().WithField("error", e.Err).Error("encountered HTTP/500 error while handling request")
-
-		c.Error(errors.WithStack(e))
-	} else {
-		e.logger().WithField("error", e.Err).Debug("encountered non-HTTP/500 error while handling request")
-	}
-
-	msg := "An unexpected error was encountered while processing this request."
-	if e.Message != "" {
-		msg = e.Message
-	}
-
-	c.AbortWithStatusJSON(status, gin.H{
-		"error":    msg,
-		"error_id": e.Uuid,
-	})
-}
-
-// Helper function to just abort with an internal server error. This is generally the response
-// from most errors encountered by the API.
-func (e *RequestError) AbortWithServerError(c *gin.Context) {
-	e.AbortWithStatus(http.StatusInternalServerError, c)
-}
-
-// Format the error to a string and include the UUID.
-func (e *RequestError) Error() string {
-	return fmt.Sprintf("%v (uuid: %s)", e.Err, e.Uuid)
-}

router/middleware.go

@@ -1,81 +0,0 @@
-package router
-
-import (
-	"github.com/gin-gonic/gin"
-	"github.com/google/uuid"
-	"github.com/pterodactyl/wings/config"
-	"github.com/pterodactyl/wings/server"
-	"net/http"
-	"strings"
-)
-
-// Set the access request control headers on all of the requests.
-func SetAccessControlHeaders(c *gin.Context) {
-	c.Header("Access-Control-Allow-Headers", "Accept, Content-Type, Content-Length, Accept-Encoding, X-CSRF-Token, Authorization")
-
-	o := c.GetHeader("Origin")
-	if o != config.Get().PanelLocation {
-		for _, origin := range config.Get().AllowedOrigins {
-			if o != origin {
-				continue
-			}
-
-			c.Header("Access-Control-Allow-Origin", origin)
-			c.Next()
-			return
-		}
-	}
-
-	c.Header("Access-Control-Allow-Origin", config.Get().PanelLocation)
-	c.Next()
-}
-
-// Authenticates the request token against the given permission string, ensuring that
-// if it is a server permission, the token has control over that server. If it is a global
-// token, this will ensure that the request is using a properly signed global token.
-func AuthorizationMiddleware(c *gin.Context) {
-	auth := strings.SplitN(c.GetHeader("Authorization"), " ", 2)
-
-	if len(auth) != 2 || auth[0] != "Bearer" {
-		c.Header("WWW-Authenticate", "Bearer")
-		c.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{
-			"error": "The required authorization heads were not present in the request.",
-		})
-
-		return
-	}
-
-	// Try to match the request against the global token for the Daemon, regardless
-	// of the permission type. If nothing is matched we will fall through to the Panel
-	// API to try and validate permissions for a server.
-	if auth[1] == config.Get().AuthenticationToken {
-		c.Next()
-
-		return
-	}
-
-	c.AbortWithStatusJSON(http.StatusForbidden, gin.H{
-		"error": "You are not authorized to access this endpoint.",
-	})
-}
-
-// Helper function to fetch a server out of the servers collection stored in memory.
-func GetServer(uuid string) *server.Server {
-	return server.GetServers().Find(func(s *server.Server) bool {
-		return uuid == s.Id()
-	})
-}
-
-// Ensure that the requested server exists in this setup. Returns a 404 if we cannot
-// locate it.
-func ServerExists(c *gin.Context) {
-	u, err := uuid.Parse(c.Param("server"))
-	if err != nil || GetServer(u.String()) == nil {
-		c.AbortWithStatusJSON(http.StatusNotFound, gin.H{
-			"error": "The resource you requested does not exist.",
-		})
-		return
-	}
-
-	c.Next()
-}

router/router.go

@@ -1,99 +0,0 @@
-package router
-
-import (
-	"github.com/apex/log"
-	"github.com/gin-gonic/gin"
-)
-
-// Configures the routing infrastructure for this daemon instance.
-func Configure() *gin.Engine {
-	gin.SetMode("release")
-
-	router := gin.New()
-
-	router.Use(gin.Recovery())
-	router.Use(SetAccessControlHeaders)
-	// @todo log this into a different file so you can setup IP blocking for abusive requests and such.
-	// This should still dump requests in debug mode since it does help with understanding the request
-	// lifecycle and quickly seeing what was called leading to the logs. However, it isn't feasible to mix
-	// this output in production and still get meaningful logs from it since they'll likely just be a huge
-	// spamfest.
-	router.Use(gin.LoggerWithFormatter(func(params gin.LogFormatterParams) string {
-		log.WithFields(log.Fields{
-			"client_ip": params.ClientIP,
-			"status":    params.StatusCode,
-			"latency":   params.Latency,
-		}).Debugf("%s %s", params.MethodColor()+params.Method+params.ResetColor(), params.Path)
-
-		return ""
-	}))
-
-	router.OPTIONS("/api/system", func(c *gin.Context) {
-		c.Status(200)
-	})
-
-	// These routes use signed URLs to validate access to the resource being requested.
-	router.GET("/download/backup", getDownloadBackup)
-	router.GET("/download/file", getDownloadFile)
-	router.POST("/upload/file", postServerUploadFiles)
-
-	// This route is special it sits above all of the other requests because we are
-	// using a JWT to authorize access to it, therefore it needs to be publicly
-	// accessible.
-	router.GET("/api/servers/:server/ws", ServerExists, getServerWebsocket)
-
-	// This request is called by another daemon when a server is going to be transferred out.
-	// This request does not need the AuthorizationMiddleware as the panel should never call it
-	// and requests are authenticated through a JWT the panel issues to the other daemon.
-	router.GET("/api/servers/:server/archive", ServerExists, getServerArchive)
-
-	// All of the routes beyond this mount will use an authorization middleware
-	// and will not be accessible without the correct Authorization header provided.
-	protected := router.Use(AuthorizationMiddleware)
-	protected.POST("/api/update", postUpdateConfiguration)
-	protected.GET("/api/system", getSystemInformation)
-	protected.GET("/api/servers", getAllServers)
-	protected.POST("/api/servers", postCreateServer)
-	protected.POST("/api/transfer", postTransfer)
-
-	// These are server specific routes, and require that the request be authorized, and
-	// that the server exist on the Daemon.
-	server := router.Group("/api/servers/:server")
-	server.Use(AuthorizationMiddleware, ServerExists)
-	{
-		server.GET("", getServer)
-		server.PATCH("", patchServer)
-		server.DELETE("", deleteServer)
-
-		server.GET("/logs", getServerLogs)
-		server.POST("/power", postServerPower)
-		server.POST("/commands", postServerCommands)
-		server.POST("/install", postServerInstall)
-		server.POST("/reinstall", postServerReinstall)
-
-		// This archive request causes the archive to start being created
-		// this should only be triggered by the panel.
-		server.POST("/archive", postServerArchive)
-
-		files := server.Group("/files")
-		{
-			files.GET("/contents", getServerFileContents)
-			files.GET("/list-directory", getServerListDirectory)
-			files.PUT("/rename", putServerRenameFiles)
-			files.POST("/copy", postServerCopyFile)
-			files.POST("/write", postServerWriteFile)
-			files.POST("/create-directory", postServerCreateDirectory)
-			files.POST("/delete", postServerDeleteFiles)
-			files.POST("/compress", postServerCompressFiles)
-			files.POST("/decompress", postServerDecompressFiles)
-		}
-
-		backup := server.Group("/backup")
-		{
-			backup.POST("", postServerBackup)
-			backup.DELETE("/:backup", deleteServerBackup)
-		}
-	}
-
-	return router
-}

router/router_download.go

@@ -1,97 +0,0 @@
-package router
-
-import (
-	"bufio"
-	"github.com/gin-gonic/gin"
-	"github.com/pterodactyl/wings/router/tokens"
-	"github.com/pterodactyl/wings/server/backup"
-	"net/http"
-	"os"
-	"strconv"
-)
-
-// Handle a download request for a server backup.
-func getDownloadBackup(c *gin.Context) {
-	token := tokens.BackupPayload{}
-	if err := tokens.ParseToken([]byte(c.Query("token")), &token); err != nil {
-		TrackedError(err).AbortWithServerError(c)
-		return
-	}
-
-	s := GetServer(token.ServerUuid)
-	if s == nil || !token.IsUniqueRequest() {
-		c.AbortWithStatusJSON(http.StatusNotFound, gin.H{
-			"error": "The requested resource was not found on this server.",
-		})
-		return
-	}
-
-	b, st, err := backup.LocateLocal(token.BackupUuid)
-	if err != nil {
-		if os.IsNotExist(err) {
-			c.AbortWithStatusJSON(http.StatusNotFound, gin.H{
-				"error": "The requested backup was not found on this server.",
-			})
-			return
-		}
-
-		TrackedServerError(err, s).AbortWithServerError(c)
-		return
-	}
-
-	f, err := os.Open(b.Path())
-	if err != nil {
-		TrackedServerError(err, s).AbortWithServerError(c)
-		return
-	}
-	defer f.Close()
-
-	c.Header("Content-Length", strconv.Itoa(int(st.Size())))
-	c.Header("Content-Disposition", "attachment; filename="+st.Name())
-	c.Header("Content-Type", "application/octet-stream")
-
-	bufio.NewReader(f).WriteTo(c.Writer)
-}
-
-// Handles downloading a specific file for a server.
-func getDownloadFile(c *gin.Context) {
-	token := tokens.FilePayload{}
-	if err := tokens.ParseToken([]byte(c.Query("token")), &token); err != nil {
-		TrackedError(err).AbortWithServerError(c)
-		return
-	}
-
-	s := GetServer(token.ServerUuid)
-	if s == nil || !token.IsUniqueRequest() {
-		c.AbortWithStatusJSON(http.StatusNotFound, gin.H{
-			"error": "The requested resource was not found on this server.",
-		})
-		return
-	}
-
-	p, _ := s.Filesystem.SafePath(token.FilePath)
-	st, err := os.Stat(p)
-	// If there is an error or we're somehow trying to download a directory, just
-	// respond with the appropriate error.
-	if err != nil {
-		TrackedServerError(err, s).AbortWithServerError(c)
-		return
-	} else if st.IsDir() {
-		c.AbortWithStatusJSON(http.StatusNotFound, gin.H{
-			"error": "The requested resource was not found on this server.",
-		})
-		return
-	}
-
-	f, err := os.Open(p)
-	if err != nil {
-		TrackedServerError(err, s).AbortWithServerError(c)
-		return
-	}
-
-	c.Header("Content-Length", strconv.Itoa(int(st.Size())))
-	c.Header("Content-Disposition", "attachment; filename="+st.Name())
-	c.Header("Content-Type", "application/octet-stream")
-
-	bufio.NewReader(f).WriteTo(c.Writer)
-}

router/router_server.go

@@ -1,224 +0,0 @@
-package router
-
-import (
-	"bytes"
-	"context"
-	"github.com/apex/log"
-	"github.com/gin-gonic/gin"
-	"github.com/pkg/errors"
-	"github.com/pterodactyl/wings/server"
-	"net/http"
-	"os"
-	"strconv"
-)
-
-// Returns a single server from the collection of servers.
-func getServer(c *gin.Context) {
-	s := GetServer(c.Param("server"))
-
-	p := *s.Proc()
-
-	c.JSON(http.StatusOK, p)
-}
-
-// Returns the logs for a given server instance.
-func getServerLogs(c *gin.Context) {
-	s := GetServer(c.Param("server"))
-
-	l, _ := strconv.ParseInt(c.DefaultQuery("size", "8192"), 10, 64)
-	if l <= 0 {
-		l = 2048
-	}
-
-	out, err := s.ReadLogfile(l)
-	if err != nil {
-		TrackedServerError(err, s).AbortWithServerError(c)
-		return
-	}
-
-	c.JSON(http.StatusOK, gin.H{"data": out})
-}
-
-// Handles a request to control the power state of a server. If the action being passed
-// through is invalid a 404 is returned. Otherwise, a HTTP/202 Accepted response is returned
-// and the actual power action is run asynchronously so that we don't have to block the
-// request until a potentially slow operation completes.
-//
-// This is done because for the most part the Panel is using websockets to determine when
-// things are happening, so theres no reason to sit and wait for a request to finish. We'll
-// just see over the socket if something isn't working correctly.
-func postServerPower(c *gin.Context) {
-	s := GetServer(c.Param("server"))
-
-	var data struct{
-		Action server.PowerAction `json:"action"`
-	}
-
-	if err := c.BindJSON(&data); err != nil {
-		return
-	}
-
-	if !data.Action.IsValid() {
-		c.AbortWithStatusJSON(http.StatusUnprocessableEntity, gin.H{
-			"error": "The power action provided was not valid, should be one of \"stop\", \"start\", \"restart\", \"kill\"",
-		})
-		return
-	}
-
-	// Because we route all of the actual bootup process to a separate thread we need to
-	// check the suspension status here, otherwise the user will hit the endpoint and then
-	// just sit there wondering why it returns a success but nothing actually happens.
-	//
-	// We don't really care about any of the other actions at this point, they'll all result
-	// in the process being stopped, which should have happened anyways if the server is suspended.
-	if (data.Action == server.PowerActionStart || data.Action == server.PowerActionRestart) && s.IsSuspended() {
-		c.AbortWithStatusJSON(http.StatusBadRequest, gin.H{
-			"error": "Cannot start or restart a server that is suspended.",
-		})
-		return
-	}
-
-	// Pass the actual heavy processing off to a seperate thread to handle so that
-	// we can immediately return a response from the server. Some of these actions
-	// can take quite some time, especially stopping or restarting.
-	go func(s *server.Server) {
-		if err := s.HandlePowerAction(data.Action, 30); err != nil {
-			if errors.Is(err, context.DeadlineExceeded) {
-				s.Log().WithField("action", data.Action).
-					Warn("could not acquire a lock while attempting to perform a power action")
-			} else {
-				s.Log().WithFields(log.Fields{"action": data, "error": err}).
-					Error("encountered error processing a server power action in the background")
-			}
-		}
-	}(s)
-
-	c.Status(http.StatusAccepted)
-}
-
-// Sends an array of commands to a running server instance.
-func postServerCommands(c *gin.Context) {
-	s := GetServer(c.Param("server"))
-
-	if running, err := s.Environment.IsRunning(); err != nil {
-		TrackedServerError(err, s).AbortWithServerError(c)
-		return
-	} else if !running {
-		c.AbortWithStatusJSON(http.StatusBadGateway, gin.H{
-			"error": "Cannot send commands to a stopped server instance.",
-		})
-		return
-	}
-
-	var data struct {
-		Commands []string `json:"commands"`
-	}
-	// BindJSON sends 400 if the request fails, all we need to do is return
-	if err := c.BindJSON(&data); err != nil {
-		return
-	}
-
-	for _, command := range data.Commands {
-		if err := s.Environment.SendCommand(command); err != nil {
-			s.Log().WithFields(log.Fields{"command": command, "error": err}).Warn("failed to send command to server instance")
-		}
-	}
-
-	c.Status(http.StatusNoContent)
-}
-
-// Updates information about a server internally.
-func patchServer(c *gin.Context) {
-	s := GetServer(c.Param("server"))
-
-	buf := bytes.Buffer{}
-	buf.ReadFrom(c.Request.Body)
-
-	if err := s.UpdateDataStructure(buf.Bytes(), true); err != nil {
-		TrackedServerError(err, s).AbortWithServerError(c)
-		return
-	}
-
-	c.Status(http.StatusNoContent)
-}
-
-// Performs a server installation in a background thread.
-func postServerInstall(c *gin.Context) {
-	s := GetServer(c.Param("server"))
-
-	go func(serv *server.Server) {
-		if err := serv.Install(true); err != nil {
-			serv.Log().WithField("error", err).Error("failed to execute server installation process")
-		}
-	}(s)
-
-	c.Status(http.StatusAccepted)
-}
-
-// Reinstalls a server.
-func postServerReinstall(c *gin.Context) {
-	s := GetServer(c.Param("server"))
-
-	go func(serv *server.Server) {
-		if err := serv.Reinstall(); err != nil {
-			serv.Log().WithField("error", err).Error("failed to complete server re-install process")
-		}
-	}(s)
-
-	c.Status(http.StatusAccepted)
-}
-
-// Deletes a server from the wings daemon and deassociates its objects.
-func deleteServer(c *gin.Context) {
-	s := GetServer(c.Param("server"))
-
-	// Immediately suspend the server to prevent a user from attempting
-	// to start it while this process is running.
-	s.Config().SetSuspended(true)
-
-	// If the server is currently installing, abort it.
-	if s.IsInstalling() {
-		s.AbortInstallation()
-	}
-
-	// Delete the server's archive if it exists. We intentionally don't return
-	// here, if the archive fails to delete, the server can still be removed.
-	if err := s.Archiver.DeleteIfExists(); err != nil {
-		s.Log().WithField("error", err).Warn("failed to delete server archive during deletion process")
-	}
-
-	// Unsubscribe all of the event listeners.
-	s.Events().UnsubscribeAll()
-
-	// Destroy the environment; in Docker this will handle a running container and
-	// forcibly terminate it before removing the container, so we do not need to handle
-	// that here.
-	if err := s.Environment.Destroy(); err != nil {
-		TrackedServerError(err, s).AbortWithServerError(c)
-	}
-
-	// Once the environment is terminated, remove the server files from the system. This is
-	// done in a separate process since failure is not the end of the world and can be
-	// manually cleaned up after the fact.
-	//
-	// In addition, servers with large amounts of files can take some time to finish deleting
-	// so we don't want to block the HTTP call while waiting on this.
-	go func(p string) {
-		if err := os.RemoveAll(p); err != nil {
-			log.WithFields(log.Fields{
-				"path": p,
-				"error": errors.WithStack(err),
-			}).Warn("failed to remove server files during deletion process")
-		}
-	}(s.Filesystem.Path())
-
-	var uuid = s.Id()
-	server.GetServers().Remove(func(s2 *server.Server) bool {
-		return s2.Id() == uuid
-	})
-
-	// Deallocate the reference to this server.
-	s = nil
-
-	c.Status(http.StatusNoContent)
-}

router/router_server_backup.go

@@ -1,65 +0,0 @@
-package router
-
-import (
-	"errors"
-	"fmt"
-	"github.com/gin-gonic/gin"
-	"github.com/pterodactyl/wings/server"
-	"github.com/pterodactyl/wings/server/backup"
-	"net/http"
-)
-
-// Backs up a server.
-func postServerBackup(c *gin.Context) {
-	s := GetServer(c.Param("server"))
-
-	data := &backup.Request{}
-	// BindJSON sends 400 if the request fails, all we need to do is return
-	if err := c.BindJSON(&data); err != nil {
-		return
-	}
-
-	var adapter backup.BackupInterface
-	var err error
-
-	switch data.Adapter {
-	case backup.LocalBackupAdapter:
-		adapter, err = data.NewLocalBackup()
-	case backup.S3BackupAdapter:
-		adapter, err = data.NewS3Backup()
-	default:
-		err = errors.New(fmt.Sprintf("unknown backup adapter [%s] provided", data.Adapter))
-		return
-	}
-
-	if err != nil {
-		TrackedServerError(err, s).AbortWithServerError(c)
-		return
-	}
-
-	go func(b backup.BackupInterface, serv *server.Server) {
-		if err := serv.Backup(b); err != nil {
-			serv.Log().WithField("error", err).Error("failed to generate backup for server")
-		}
-	}(adapter, s)
-
-	c.Status(http.StatusAccepted)
-}
-
-// Deletes a local backup of a server.
-func deleteServerBackup(c *gin.Context) {
-	s := GetServer(c.Param("server"))
-
-	b, _, err := backup.LocateLocal(c.Param("backup"))
-	if err != nil {
-		TrackedServerError(err, s).AbortWithServerError(c)
-		return
-	}
-
-	if err := b.Remove(); err != nil {
-		TrackedServerError(err, s).AbortWithServerError(c)
-		return
-	}
-
-	c.Status(http.StatusNoContent)
-}

router/router_server_files.go

@@ -1,417 +0,0 @@
-package router
-
-import (
-	"bufio"
-	"context"
-	"github.com/gin-gonic/gin"
-	"github.com/pkg/errors"
-	"github.com/pterodactyl/wings/router/tokens"
-	"github.com/pterodactyl/wings/server"
-	"golang.org/x/sync/errgroup"
-	"mime/multipart"
-	"net/http"
-	"net/url"
-	"os"
-	"path"
-	"path/filepath"
-	"strconv"
-	"strings"
-)
-
-// Returns the contents of a file on the server.
-func getServerFileContents(c *gin.Context) {
-	s := GetServer(c.Param("server"))
-
-	p, err := url.QueryUnescape(c.Query("file"))
-	if err != nil {
-		TrackedServerError(err, s).AbortWithServerError(c)
-		return
-	}
-	p = "/" + strings.TrimLeft(p, "/")
-
-	cleaned, err := s.Filesystem.SafePath(p)
-	if err != nil {
-		c.AbortWithStatusJSON(http.StatusNotFound, gin.H{
-			"error": "The file requested could not be found.",
-		})
-		return
-	}
-
-	st, err := s.Filesystem.Stat(cleaned)
-	if err != nil {
-		TrackedServerError(err, s).AbortWithServerError(c)
-		return
-	}
-
-	if st.Info.IsDir() {
-		c.AbortWithStatusJSON(http.StatusNotFound, gin.H{
-			"error": "The requested resource was not found on the system.",
-		})
-		return
-	}
-
-	f, err := os.Open(cleaned)
-	if err != nil {
-		TrackedServerError(err, s).AbortWithServerError(c)
-		return
-	}
-	defer f.Close()
-
-	c.Header("X-Mime-Type", st.Mimetype)
-	c.Header("Content-Length", strconv.Itoa(int(st.Info.Size())))
-
-	// If a download parameter is included in the URL go ahead and attach the necessary headers
-	// so that the file can be downloaded.
-	if c.Query("download") != "" {
-		c.Header("Content-Disposition", "attachment; filename="+st.Info.Name())
-		c.Header("Content-Type", "application/octet-stream")
-	}
-
-	bufio.NewReader(f).WriteTo(c.Writer)
-}
-
-// Returns the contents of a directory for a server.
-func getServerListDirectory(c *gin.Context) {
-	s := GetServer(c.Param("server"))
-
-	d, err := url.QueryUnescape(c.Query("directory"))
-	if err != nil {
-		TrackedServerError(err, s).AbortWithServerError(c)
-		return
-	}
-
-	stats, err := s.Filesystem.ListDirectory(d)
-	if err != nil {
-		if err.Error() == "readdirent: not a directory" {
-			c.AbortWithStatusJSON(http.StatusNotFound, gin.H{
-				"error": "The requested directory does not exist.",
-			})
-			return
-		}
-
-		TrackedServerError(err, s).AbortWithServerError(c)
-		return
-	}
-
-	c.JSON(http.StatusOK, stats)
-}
-
-type renameFile struct {
-	To   string `json:"to"`
-	From string `json:"from"`
-}
-
-// Renames (or moves) files for a server.
-func putServerRenameFiles(c *gin.Context) {
-	s := GetServer(c.Param("server"))
-
-	var data struct {
-		Root  string       `json:"root"`
-		Files []renameFile `json:"files"`
-	}
-	// BindJSON sends 400 if the request fails, all we need to do is return
-	if err := c.BindJSON(&data); err != nil {
-		return
-	}
-
-	if len(data.Files) == 0 {
-		c.AbortWithStatusJSON(http.StatusUnprocessableEntity, gin.H{
-			"error": "No files to move or rename were provided.",
-		})
-		return
-	}
-
-	g, ctx := errgroup.WithContext(context.Background())
-
-	// Loop over the array of files passed in and perform the move or rename action against each.
-	for _, p := range data.Files {
-		pf := path.Join(data.Root, p.From)
-		pt := path.Join(data.Root, p.To)
-
-		g.Go(func() error {
-			select {
-			case <-ctx.Done():
-				return ctx.Err()
-			default:
-				if err := s.Filesystem.Rename(pf, pt); err != nil {
-					// Return nil if the error is an is not exists.
-					// NOTE: os.IsNotExist() does not work if the error is wrapped.
-					if errors.Is(err, os.ErrNotExist) {
-						return nil
-					}
-
-					return err
-				}
-
-				return nil
-			}
-		})
-	}
-
-	if err := g.Wait(); err != nil {
-		TrackedServerError(err, s).AbortWithServerError(c)
-		return
-	}
-
-	c.Status(http.StatusNoContent)
-}
-
-// Copies a server file.
-func postServerCopyFile(c *gin.Context) {
-	s := GetServer(c.Param("server"))
-
-	var data struct {
-		Location string `json:"location"`
-	}
-	// BindJSON sends 400 if the request fails, all we need to do is return
-	if err := c.BindJSON(&data); err != nil {
-		return
-	}
-
-	if err := s.Filesystem.Copy(data.Location); err != nil {
-		// Check if the file does not exist.
-		// NOTE: os.IsNotExist() does not work if the error is wrapped.
-		if errors.Is(err, os.ErrNotExist) {
-			c.Status(http.StatusNotFound)
-			return
-		}
-
-		TrackedServerError(err, s).AbortWithServerError(c)
-		return
-	}
-
-	c.Status(http.StatusNoContent)
-}
-
-// Deletes files from a server.
-func postServerDeleteFiles(c *gin.Context) {
-	s := GetServer(c.Param("server"))
-
-	var data struct {
-		Root  string   `json:"root"`
-		Files []string `json:"files"`
-	}
-
-	if err := c.BindJSON(&data); err != nil {
-		return
-	}
-
-	if len(data.Files) == 0 {
-		c.AbortWithStatusJSON(http.StatusUnprocessableEntity, gin.H{
-			"error": "No files were specified for deletion.",
-		})
-		return
-	}
-
-	g, ctx := errgroup.WithContext(context.Background())
-
-	// Loop over the array of files passed in and delete them. If any of the file deletions
-	// fail just abort the process entirely.
-	for _, p := range data.Files {
-		pi := path.Join(data.Root, p)
-
-		g.Go(func() error {
-			select {
-			case <-ctx.Done():
-				return ctx.Err()
-			default:
-				return s.Filesystem.Delete(pi)
-			}
-		})
-	}
-
-	if err := g.Wait(); err != nil {
-		TrackedServerError(err, s).AbortWithServerError(c)
-		return
-	}
-
-	c.Status(http.StatusNoContent)
-}
-
-// Writes the contents of the request to a file on a server.
-func postServerWriteFile(c *gin.Context) {
-	s := GetServer(c.Param("server"))
-
-	f, err := url.QueryUnescape(c.Query("file"))
-	if err != nil {
-		TrackedServerError(err, s).AbortWithServerError(c)
-		return
-	}
-	f = "/" + strings.TrimLeft(f, "/")
-
-	if err := s.Filesystem.Writefile(f, c.Request.Body); err != nil {
-		TrackedServerError(err, s).AbortWithServerError(c)
-		return
-	}
-
-	c.Status(http.StatusNoContent)
-}
-
-// Create a directory on a server.
-func postServerCreateDirectory(c *gin.Context) {
-	s := GetServer(c.Param("server"))
-
-	var data struct {
-		Name string `json:"name"`
-		Path string `json:"path"`
-	}
-	// BindJSON sends 400 if the request fails, all we need to do is return
-	if err := c.BindJSON(&data); err != nil {
-		return
-	}
-
-	if err := s.Filesystem.CreateDirectory(data.Name, data.Path); err != nil {
-		TrackedServerError(err, s).AbortWithServerError(c)
-		return
-	}
-
-	c.Status(http.StatusNoContent)
-}
-
-func postServerCompressFiles(c *gin.Context) {
-	s := GetServer(c.Param("server"))
-
-	var data struct {
-		RootPath string   `json:"root"`
-		Files    []string `json:"files"`
-	}
-
-	if err := c.BindJSON(&data); err != nil {
-		return
-	}
-
-	if len(data.Files) == 0 {
-		c.AbortWithStatusJSON(http.StatusUnprocessableEntity, gin.H{
-			"error": "No files were passed through to be compressed.",
-		})
-		return
-	}
-
-	if !s.Filesystem.HasSpaceAvailable() {
-		c.AbortWithStatusJSON(http.StatusConflict, gin.H{
-			"error": "This server does not have enough available disk space to generate a compressed archive.",
-		})
-		return
-	}
-
-	f, err := s.Filesystem.CompressFiles(data.RootPath, data.Files)
-	if err != nil {
-		TrackedServerError(err, s).AbortWithServerError(c)
-		return
-	}
-
-	c.JSON(http.StatusOK, &server.Stat{
-		Info:     f,
-		Mimetype: "application/tar+gzip",
-	})
-}
-
-func postServerDecompressFiles(c *gin.Context) {
-	s := GetServer(c.Param("server"))
-
-	var data struct {
-		RootPath string `json:"root"`
-		File     string `json:"file"`
-	}
-
-	if err := c.BindJSON(&data); err != nil {
-		return
-	}
-
-	hasSpace, err := s.Filesystem.SpaceAvailableForDecompression(data.RootPath, data.File)
-	if err != nil {
-		TrackedServerError(err, s).AbortWithServerError(c)
-		return
-	}
-
-	if !hasSpace {
-		c.AbortWithStatusJSON(http.StatusConflict, gin.H{
-			"error": "This server does not have enough available disk space to decompress this archive.",
-		})
-		return
-	}
-
-	if err := s.Filesystem.DecompressFile(data.RootPath, data.File); err != nil {
-		// Check if the file does not exist.
-		// NOTE: os.IsNotExist() does not work if the error is wrapped.
-		if errors.Is(err, os.ErrNotExist) {
-			c.Status(http.StatusNotFound)
-			return
-		}
-
-		TrackedServerError(err, s).AbortWithServerError(c)
-		return
-	}
-
-	c.Status(http.StatusNoContent)
-}
-
-func postServerUploadFiles(c *gin.Context) {
-	token := tokens.UploadPayload{}
-	if err := tokens.ParseToken([]byte(c.Query("token")), &token); err != nil {
-		TrackedError(err).AbortWithServerError(c)
-		return
-	}
-
-	s := GetServer(token.ServerUuid)
-	if s == nil || !token.IsUniqueRequest() {
-		c.AbortWithStatusJSON(http.StatusNotFound, gin.H{
-			"error": "The requested resource was not found on this server.",
-		})
-		return
-	}
-
-	if !s.Filesystem.HasSpaceAvailable() {
-		c.AbortWithStatusJSON(http.StatusConflict, gin.H{
-			"error": "This server does not have enough available disk space to accept any file uploads.",
-		})
-		return
-	}
-
-	form, err := c.MultipartForm()
-	if err != nil {
-		c.AbortWithStatusJSON(http.StatusBadRequest, gin.H{
-			"error": "Failed to get multipart form.",
-		})
-		return
-	}
-
-	headers, ok := form.File["files"]
-	if !ok {
-		c.AbortWithStatusJSON(http.StatusNotModified, gin.H{
-			"error": "No files were attached to the request.",
-		})
-		return
-	}
-
-	directory := c.Query("directory")
-
-	for _, header := range headers {
-		p, err := s.Filesystem.SafePath(filepath.Join(directory, header.Filename))
-		if err != nil {
-			c.AbortWithError(http.StatusInternalServerError, err)
-			return
-		}
-
-		// We run this in a different method so I can use defer without any of
-		// the consequences caused by calling it in a loop.
-		if err := handleFileUpload(p, s, header); err != nil {
-			c.AbortWithError(http.StatusInternalServerError, err)
-			return
-		}
-	}
-}
-
-func handleFileUpload(p string, s *server.Server, header *multipart.FileHeader) error {
-	file, err := header.Open()
-	if err != nil {
-		return errors.WithStack(err)
-	}
-	defer file.Close()
-
-	if err := s.Filesystem.Writefile(p, file); err != nil {
-		return errors.WithStack(err)
-	}
-
-	return nil
-}

router/router_server_ws.go

@@ -1,60 +0,0 @@
-package router
-
-import (
-	"context"
-	"encoding/json"
-	"github.com/gin-gonic/gin"
-	ws "github.com/gorilla/websocket"
-	"github.com/pterodactyl/wings/router/websocket"
-)
-
-// Upgrades a connection to a websocket and passes events along between.
-func getServerWebsocket(c *gin.Context) {
-	s := GetServer(c.Param("server"))
-	handler, err := websocket.GetHandler(s, c.Writer, c.Request)
-	if err != nil {
-		TrackedServerError(err, s).AbortWithServerError(c)
-		return
-	}
-	defer handler.Connection.Close()
-
-	// Create a context that can be canceled when the user disconnects from this
-	// socket that will also cancel listeners running in separate threads.
-	ctx, cancel := context.WithCancel(context.Background())
-	defer cancel()
-
-	go handler.ListenForServerEvents(ctx)
-	go handler.ListenForExpiration(ctx)
-
-	for {
-		j := websocket.Message{}
-
-		_, p, err := handler.Connection.ReadMessage()
-		if err != nil {
-			if !ws.IsCloseError(
-				err,
-				ws.CloseNormalClosure,
-				ws.CloseGoingAway,
-				ws.CloseNoStatusReceived,
-				ws.CloseServiceRestart,
-				ws.CloseAbnormalClosure,
-			) {
-				s.Log().WithField("error", err).Warn("error handling websocket message for server")
-			}
-			break
-		}
-
-		// Discard and JSON parse errors into the void and don't continue processing this
-		// specific socket request. If we did a break here the client would get disconnected
-		// from the socket, which is NOT what we want to do.
-		if err := json.Unmarshal(p, &j); err != nil {
-			continue
-		}
-
-		go func(msg websocket.Message) {
-			if err := handler.HandleInbound(msg); err != nil {
-				handler.SendErrorJson(msg, err)
-			}
-		}(j)
-	}
-}

router/router_system.go

@@ -1,103 +0,0 @@
-package router
-
-import (
-	"bytes"
-	"github.com/apex/log"
-	"github.com/gin-gonic/gin"
-	"github.com/pterodactyl/wings/config"
-	"github.com/pterodactyl/wings/installer"
-	"github.com/pterodactyl/wings/server"
-	"github.com/pterodactyl/wings/system"
-	"net/http"
-	"strings"
-)
-
-// Returns information about the system that wings is running on.
-func getSystemInformation(c *gin.Context) {
-	i, err := system.GetSystemInformation()
-	if err != nil {
-		TrackedError(err).AbortWithServerError(c)
-
-		return
-	}
-
-	c.JSON(http.StatusOK, i)
-}
-
-// Returns all of the servers that are registered and configured correctly on
-// this wings instance.
-func getAllServers(c *gin.Context) {
-	c.JSON(http.StatusOK, server.GetServers().All())
-}
-
-// Creates a new server on the wings daemon and begins the installation process
-// for it.
-func postCreateServer(c *gin.Context) {
-	buf := bytes.Buffer{}
-	buf.ReadFrom(c.Request.Body)
-
-	install, err := installer.New(buf.Bytes())
-	if err != nil {
-		if installer.IsValidationError(err) {
-			c.AbortWithStatusJSON(http.StatusUnprocessableEntity, gin.H{
-				"error": "The data provided in the request could not be validated.",
-			})
-			return
-		}
-
-		TrackedError(err).AbortWithServerError(c)
-		return
-	}
-
-	// Plop that server instance onto the request so that it can be referenced in
-	// requests from here-on out.
-	server.GetServers().Add(install.Server())
-
-	// Begin the installation process in the background to not block the request
-	// cycle. If there are any errors they will be logged and communicated back
-	// to the Panel where a reinstall may take place.
-	go func(i *installer.Installer) {
-		i.Execute()
-
-		if err := i.Server().Install(false); err != nil {
-			log.WithFields(log.Fields{"server": i.Uuid(), "error": err}).Error("failed to run install process for server")
-		}
-	}(install)
-
-	c.Status(http.StatusAccepted)
-}
-
-// Updates the running configuration for this daemon instance.
-func postUpdateConfiguration(c *gin.Context) {
-	// A backup of the configuration for error purposes.
-	ccopy := *config.Get()
-	// A copy of the configuration we're using to bind the data recevied into.
-	cfg := *config.Get()
-
-	// BindJSON sends 400 if the request fails, all we need to do is return
-	if err := c.BindJSON(&cfg); err != nil {
-		return
-	}
-
-	// Keep the SSL certificates the same since the Panel will send through Lets Encrypt
-	// default locations. However, if we picked a different location manually we don't
-	// want to override that.
-	//
-	// If you pass through manual locations in the API call this logic will be skipped.
-	if strings.HasPrefix(cfg.Api.Ssl.KeyFile, "/etc/letsencrypt/live/") {
-		cfg.Api.Ssl.KeyFile = ccopy.Api.Ssl.KeyFile
-		cfg.Api.Ssl.CertificateFile = ccopy.Api.Ssl.CertificateFile
-	}
-
-	config.Set(&cfg)
-	if err := config.Get().WriteToDisk(); err != nil {
-		// If there was an error writing to the disk, revert back to the configuration we had
-		// before this code was run.
-		config.Set(&ccopy)
-
-		TrackedError(err).AbortWithServerError(c)
-		return
-	}
-
-	c.Status(http.StatusNoContent)
-}

router/router_transfer.go

@@ -1,315 +0,0 @@
-package router
-
-import (
-	"bufio"
-	"bytes"
-	"crypto/sha256"
-	"encoding/hex"
-	"errors"
-	"github.com/buger/jsonparser"
-	"github.com/gin-gonic/gin"
-	"github.com/mholt/archiver/v3"
-	"github.com/pterodactyl/wings/api"
-	"github.com/pterodactyl/wings/config"
-	"github.com/pterodactyl/wings/installer"
-	"github.com/pterodactyl/wings/router/tokens"
-	"github.com/pterodactyl/wings/server"
-	"go.uber.org/zap"
-	"io"
-	"io/ioutil"
-	"net/http"
-	"os"
-	"path/filepath"
-	"strconv"
-	"strings"
-	"time"
-)
-
-func getServerArchive(c *gin.Context) {
-	auth := strings.SplitN(c.GetHeader("Authorization"), " ", 2)
-
-	if len(auth) != 2 || auth[0] != "Bearer" {
-		c.Header("WWW-Authenticate", "Bearer")
-		c.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{
-			"error": "The required authorization heads were not present in the request.",
-		})
-		return
-	}
-
-	token := tokens.TransferPayload{}
-	if err := tokens.ParseToken([]byte(auth[1]), &token); err != nil {
-		TrackedError(err).AbortWithServerError(c)
-		return
-	}
-
-	if token.Subject != c.Param("server") {
-		c.AbortWithStatusJSON(http.StatusForbidden, gin.H{
-			"error": "( .. •˘___˘• .. )",
-		})
-		return
-	}
-
-	s := GetServer(c.Param("server"))
-
-	st, err := s.Archiver.Stat()
-	if err != nil {
-		if !os.IsNotExist(err) {
-			TrackedServerError(err, s).SetMessage("failed to stat archive").AbortWithServerError(c)
-			return
-		}
-
-		c.AbortWithStatus(http.StatusNotFound)
-		return
-	}
-
-	checksum, err := s.Archiver.Checksum()
-	if err != nil {
-		TrackedServerError(err, s).SetMessage("failed to calculate checksum").AbortWithServerError(c)
-		return
-	}
-
-	file, err := os.Open(s.Archiver.ArchivePath())
-	if err != nil {
-		tserr := TrackedServerError(err, s)
-		if !os.IsNotExist(err) {
-			tserr.SetMessage("failed to open archive for reading")
-		} else {
-			tserr.SetMessage("failed to open archive")
-		}
-
-		tserr.AbortWithServerError(c)
-		return
-	}
-	defer file.Close()
-
-	c.Header("X-Checksum", checksum)
-	c.Header("X-Mime-Type", st.Mimetype)
-	c.Header("Content-Length", strconv.Itoa(int(st.Info.Size())))
-	c.Header("Content-Disposition", "attachment; filename="+s.Archiver.ArchiveName())
-	c.Header("Content-Type", "application/octet-stream")
-
-	bufio.NewReader(file).WriteTo(c.Writer)
-}
-
-func postServerArchive(c *gin.Context) {
-	s := GetServer(c.Param("server"))
-
-	go func(server *server.Server) {
-		start := time.Now()
-
-		if err := server.Archiver.Archive(); err != nil {
-			zap.S().Errorw("failed to get archive for server", zap.String("server", server.Id()), zap.Error(err))
-			return
-		}
-
-		zap.S().Debugw(
-			"successfully created archive for server",
-			zap.String("server", server.Id()),
-			zap.Duration("time", time.Now().Sub(start).Round(time.Microsecond)),
-		)
-
-		r := api.NewRequester()
-		rerr, err := r.SendArchiveStatus(server.Id(), true)
-		if rerr != nil || err != nil {
-			if err != nil {
-				zap.S().Errorw("failed to notify panel with archive status", zap.String("server", server.Id()), zap.Error(err))
-				return
-			}
-
-			zap.S().Errorw(
-				"panel returned an error when sending the archive status",
-				zap.String("server", server.Id()),
-				zap.Error(errors.New(rerr.String())),
-			)
-			return
-		}
-
-		zap.S().Debugw("successfully notified panel about archive status", zap.String("server", server.Id()))
-	}(s)
-
-	c.Status(http.StatusAccepted)
-}
-
-func postTransfer(c *gin.Context) {
-	zap.S().Debug("incoming transfer from panel")
-
-	buf := bytes.Buffer{}
-	buf.ReadFrom(c.Request.Body)
-
-	go func(data []byte) {
-		serverID, _ := jsonparser.GetString(data, "server_id")
-		url, _ := jsonparser.GetString(data, "url")
-		token, _ := jsonparser.GetString(data, "token")
-
-		// Create an http client with no timeout.
-		client := &http.Client{Timeout: 0}
-
-		hasError := true
-		defer func() {
-			if !hasError {
-				return
-			}
-
-			zap.S().Errorw("server transfer has failed", zap.String("server", serverID))
-			rerr, err := api.NewRequester().SendTransferFailure(serverID)
-			if rerr != nil || err != nil {
-				if err != nil {
-					zap.S().Errorw("failed to notify panel with transfer failure", zap.String("server", serverID), zap.Error(err))
-					return
-				}
-
-				zap.S().Errorw("panel returned an error when notifying of a transfer failure", zap.String("server", serverID), zap.Error(errors.New(rerr.String())))
-				return
-			}
-
-			zap.S().Debugw("successfully notified panel about transfer failure", zap.String("server", serverID))
-		}()
-
-		// Make a new GET request to the URL the panel gave us.
-		req, err := http.NewRequest("GET", url, nil)
-		if err != nil {
-			zap.S().Errorw("failed to create http request", zap.Error(err))
-			return
-		}
-
-		// Add the authorization header.
-		req.Header.Set("Authorization", token)
-
-		// Execute the http request.
-		res, err := client.Do(req)
-		if err != nil {
-			zap.S().Errorw("failed to send http request", zap.Error(err))
-			return
-		}
-		defer res.Body.Close()
-
-		// Handle non-200 status codes.
-		if res.StatusCode != 200 {
-			body, err := ioutil.ReadAll(res.Body)
-			if err != nil {
-				zap.S().Errorw("failed to read response body", zap.Int("status", res.StatusCode), zap.Error(err))
-				return
-			}
-
-			zap.S().Errorw("failed to request server archive", zap.Int("status", res.StatusCode), zap.String("body", string(body)))
-			return
-		}
-
-		// Get the path to the archive.
-		archivePath := filepath.Join(config.Get().System.ArchiveDirectory, serverID + ".tar.gz")
-
-		// Check if the archive already exists and delete it if it does.
-		_, err = os.Stat(archivePath)
-		if err != nil {
-			if !os.IsNotExist(err) {
-				zap.S().Errorw("failed to stat file", zap.Error(err))
-				return
-			}
-		} else {
-			if err := os.Remove(archivePath); err != nil {
-				zap.S().Errorw("failed to delete old file", zap.Error(err))
-				return
-			}
-		}
-
-		// Create the file.
-		file, err := os.Create(archivePath)
-		if err != nil {
-			zap.S().Errorw("failed to open file on disk", zap.Error(err))
-			return
-		}
-
-		// Copy the file.
-		buf := make([]byte, 1024 * 4)
-		_, err = io.CopyBuffer(file, res.Body, buf)
-		if err != nil {
-			zap.S().Errorw("failed to copy file to disk", zap.Error(err))
-			return
-		}
-
-		// Close the file so it can be opened to verify the checksum.
-		if err := file.Close(); err != nil {
-			zap.S().Errorw("failed to close archive file", zap.Error(err))
-			return
-		}
-		zap.S().Debug("server archive has been downloaded, computing checksum..", zap.String("server", serverID))
-
-		// Open the archive file for computing a checksum.
-		file, err = os.Open(archivePath)
-		if err != nil {
-			zap.S().Errorw("failed to open file on disk", zap.Error(err))
-			return
-		}
-
-		// Compute the sha256 checksum of the file.
-		hash := sha256.New()
-		buf = make([]byte, 1024 * 4)
-		if _, err := io.CopyBuffer(hash, file, buf); err != nil {
-			zap.S().Errorw("failed to copy file for checksum verification", zap.Error(err))
-			return
-		}
-
-		// Verify the two checksums.
-		if hex.EncodeToString(hash.Sum(nil)) != res.Header.Get("X-Checksum") {
-			zap.S().Errorw("checksum failed verification")
-			return
-		}
-
-		// Close the file.
-		if err := file.Close(); err != nil {
-			zap.S().Errorw("failed to close archive file", zap.Error(err))
-			return
-		}
-
-		zap.S().Infow("server archive transfer was successful", zap.String("server", serverID))
-
-		// Get the server data from the request.
-		serverData, t, _, _ := jsonparser.Get(data, "server")
-		if t != jsonparser.Object {
-			zap.S().Errorw("invalid server data passed in request")
-			return
-		}
-
-		// Create a new server installer (note this does not execute the install script)
-		i, err := installer.New(serverData)
-		if err != nil {
-			zap.S().Warnw("failed to validate the received server data", zap.Error(err))
-			return
-		}
-
-		// Add the server to the collection.
-		server.GetServers().Add(i.Server())
-
-		// Create the server's environment (note this does not execute the install script)
-		i.Execute()
-
-		// Un-archive the archive. That sounds weird..
-		if err := archiver.NewTarGz().Unarchive(archivePath, i.Server().Filesystem.Path()); err != nil {
-			zap.S().Errorw("failed to extract archive", zap.String("server", serverID), zap.Error(err))
-			return
-		}
-
-		// We mark the process as being successful here as if we fail to send a transfer success,
-		// then a transfer failure won't probably be successful either.
-		//
-		// It may be useful to retry sending the transfer success every so often just in case of a small
-		// hiccup or the fix of whatever error causing the success request to fail.
-		hasError = false
-
-		// Notify the panel that the transfer succeeded.
-		rerr, err := api.NewRequester().SendTransferSuccess(serverID)
-		if rerr != nil || err != nil {
-			if err != nil {
-				zap.S().Errorw("failed to notify panel with transfer success", zap.String("server", serverID), zap.Error(err))
-				return
-			}
-
-			zap.S().Errorw("panel returned an error when notifying of a transfer success", zap.String("server", serverID), zap.Error(errors.New(rerr.String())))
-			return
-		}
-
-		zap.S().Debugw("successfully notified panel about transfer success", zap.String("server", serverID))
-	}(buf.Bytes())
-
-	c.Status(http.StatusAccepted)
-}

router/tokens/backup.go

@@ -1,26 +0,0 @@
-package tokens
-
-import (
-	"github.com/gbrlsnchs/jwt/v3"
-)
-
-type BackupPayload struct {
-	jwt.Payload
-
-	ServerUuid string `json:"server_uuid"`
-	BackupUuid string `json:"backup_uuid"`
-	UniqueId   string `json:"unique_id"`
-}
-
-// Returns the JWT payload.
-func (p *BackupPayload) GetPayload() *jwt.Payload {
-	return &p.Payload
-}
-
-// Determines if this JWT is valid for the given request cycle. If the
-// unique ID passed in the token has already been seen before this will
-// return false. This allows us to use this JWT as a one-time token that
-// validates all of the request.
-func (p *BackupPayload) IsUniqueRequest() bool {
-	return getTokenStore().IsValidToken(p.UniqueId)
-}

router/tokens/file.go

@@ -1,25 +0,0 @@
-package tokens
-
-import (
-	"github.com/gbrlsnchs/jwt/v3"
-)
-
-type FilePayload struct {
-	jwt.Payload
-	FilePath   string `json:"file_path"`
-	ServerUuid string `json:"server_uuid"`
-	UniqueId   string `json:"unique_id"`
-}
-
-// Returns the JWT payload.
-func (p *FilePayload) GetPayload() *jwt.Payload {
-	return &p.Payload
-}
-
-// Determines if this JWT is valid for the given request cycle. If the
-// unique ID passed in the token has already been seen before this will
-// return false. This allows us to use this JWT as a one-time token that
-// validates all of the request.
-func (p *FilePayload) IsUniqueRequest() bool {
-	return getTokenStore().IsValidToken(p.UniqueId)
-}

router/tokens/parser.go

@@ -1,27 +0,0 @@
-package tokens
-
-import (
-	"github.com/gbrlsnchs/jwt/v3"
-	"github.com/pterodactyl/wings/config"
-	"time"
-)
-
-type TokenData interface {
-	GetPayload() *jwt.Payload
-}
-
-// Validates the provided JWT against the known secret for the Daemon and returns the
-// parsed data. This function DOES NOT validate that the token is valid for the connected
-// server, nor does it ensure that the user providing the token is able to actually do things.
-//
-// This simply returns a parsed token.
-func ParseToken(token []byte, data TokenData) error {
-	verifyOptions := jwt.ValidatePayload(
-		data.GetPayload(),
-		jwt.ExpirationTimeValidator(time.Now()),
-	)
-
-	_, err := jwt.Verify(token, config.GetJwtAlgorithm(), &data, verifyOptions)
-
-	return err
-}

router/tokens/token_store.go

@@ -1,41 +0,0 @@
-package tokens
-
-import (
-	"github.com/patrickmn/go-cache"
-	"sync"
-	"time"
-)
-
-type TokenStore struct {
-	sync.Mutex
-	cache *cache.Cache
-}
-
-var _tokens *TokenStore
-
-// Returns the global unique token store cache. This is used to validate
-// one time token usage by storing any received tokens in a local memory
-// cache until they are ready to expire.
-func getTokenStore() *TokenStore {
-	if _tokens == nil {
-		_tokens = &TokenStore{
-			cache: cache.New(time.Minute*60, time.Minute*5),
-		}
-	}
-
-	return _tokens
-}
-
-// Checks if a token is valid or not.
-func (t *TokenStore) IsValidToken(token string) bool {
-	t.Lock()
-	defer t.Unlock()
-
-	_, exists := t.cache.Get(token)
-
-	if !exists {
-		t.cache.Add(token, "", time.Minute*60)
-	}
-
-	return !exists
-}

router/tokens/transfer.go

@@ -1,14 +0,0 @@
-package tokens
-
-import (
-	"github.com/gbrlsnchs/jwt/v3"
-)
-
-type TransferPayload struct {
-	jwt.Payload
-}
-
-// GetPayload returns the JWT payload.
-func (p *TransferPayload) GetPayload() *jwt.Payload {
-	return &p.Payload
-}

router/tokens/upload.go

@@ -1,25 +0,0 @@
-package tokens
-
-import (
-	"github.com/gbrlsnchs/jwt/v3"
-)
-
-type UploadPayload struct {
-	jwt.Payload
-
-	ServerUuid string `json:"server_uuid"`
-	UniqueId   string `json:"unique_id"`
-}
-
-// Returns the JWT payload.
-func (p *UploadPayload) GetPayload() *jwt.Payload {
-	return &p.Payload
-}
-
-// Determines if this JWT is valid for the given request cycle. If the
-// unique ID passed in the token has already been seen before this will
-// return false. This allows us to use this JWT as a one-time token that
-// validates all of the request.
-func (p *UploadPayload) IsUniqueRequest() bool {
-	return getTokenStore().IsValidToken(p.UniqueId)
-}

router/tokens/websocket.go

@@ -1,46 +0,0 @@
-package tokens
-
-import (
-	"encoding/json"
-	"github.com/gbrlsnchs/jwt/v3"
-	"strings"
-	"sync"
-)
-
-type WebsocketPayload struct {
-	jwt.Payload
-	sync.RWMutex
-
-	UserID      json.Number `json:"user_id"`
-	ServerUUID  string      `json:"server_uuid"`
-	Permissions []string    `json:"permissions"`
-}
-
-// Returns the JWT payload.
-func (p *WebsocketPayload) GetPayload() *jwt.Payload {
-	p.RLock()
-	defer p.RUnlock()
-
-	return &p.Payload
-}
-
-func (p *WebsocketPayload) GetServerUuid() string {
-	p.RLock()
-	defer p.RUnlock()
-
-	return p.ServerUUID
-}
-
-// Checks if the given token payload has a permission string.
-func (p *WebsocketPayload) HasPermission(permission string) bool {
-	p.RLock()
-	defer p.RUnlock()
-
-	for _, k := range p.Permissions {
-		if k == permission || (!strings.HasPrefix(permission, "admin") && k == "*") {
-			return true
-		}
-	}
-
-	return false
-}

router/websocket/listeners.go

@@ -1,73 +0,0 @@
-package websocket
-
-import (
-	"context"
-	"github.com/pterodactyl/wings/events"
-	"github.com/pterodactyl/wings/server"
-	"time"
-)
-
-// Checks the time to expiration on the JWT every 30 seconds until the token has
-// expired. If we are within 3 minutes of the token expiring, send a notice over
-// the socket that it is expiring soon. If it has expired, send that notice as well.
-func (h *Handler) ListenForExpiration(ctx context.Context) {
-	// Make a ticker and completion channel that is used to continuously poll the
-	// JWT stored in the session to send events to the socket when it is expiring.
-	ticker := time.NewTicker(time.Second * 30)
-
-	// Whenever this function is complete, end the ticker, close out the channel,
-	// and then close the websocket connection.
-	defer ticker.Stop()
-
-	for {
-		select {
-		case <-ctx.Done():
-			return
-		case <-ticker.C:
-			jwt := h.GetJwt()
-			if jwt != nil {
-				if jwt.ExpirationTime.Unix()-time.Now().Unix() <= 0 {
-					_ = h.SendJson(&Message{Event: TokenExpiredEvent})
-				} else if jwt.ExpirationTime.Unix()-time.Now().Unix() <= 180 {
-					_ = h.SendJson(&Message{Event: TokenExpiringEvent})
-				}
-			}
-		}
-	}
-}
-
-// Listens for different events happening on a server and sends them along
-// to the connected websocket.
-func (h *Handler) ListenForServerEvents(ctx context.Context) {
-	e := []string{
-		server.StatsEvent,
-		server.StatusEvent,
-		server.ConsoleOutputEvent,
-		server.InstallOutputEvent,
-		server.InstallStartedEvent,
-		server.InstallCompletedEvent,
-		server.DaemonMessageEvent,
-		server.BackupCompletedEvent,
-	}
-
-	eventChannel := make(chan events.Event)
-	for _, event := range e {
-		h.server.Events().Subscribe(event, eventChannel)
-	}
-
-	for d := range eventChannel {
-		select {
-		case <-ctx.Done():
-			for _, event := range e {
-				h.server.Events().Unsubscribe(event, eventChannel)
-			}
-
-			close(eventChannel)
-		default:
-			_ = h.SendJson(&Message{
-				Event: d.Topic,
-				Args:  []string{d.Data},
-			})
-		}
-	}
-}

router/websocket/message.go

@@ -1,26 +0,0 @@
-package websocket
-
-const (
-	AuthenticationSuccessEvent = "auth success"
-	TokenExpiringEvent         = "token expiring"
-	TokenExpiredEvent          = "token expired"
-	AuthenticationEvent        = "auth"
-	SetStateEvent              = "set state"
-	SendServerLogsEvent        = "send logs"
-	SendCommandEvent           = "send command"
-	ErrorEvent                 = "daemon error"
-)
-
-type Message struct {
-	// The event to perform. Should be one of the following that are supported:
-	//
-	// - status : Returns the server's power state.
-	// - logs : Returns the server log data at the time of the request.
-	// - power : Performs a power action aganist the server based the data.
-	// - command : Performs a command on a server using the data field.
-	Event string `json:"event"`
-
-	// The data to pass along, only used by power/command currently. Other requests
-	// should either omit the field or pass an empty value as it is ignored.
-	Args []string `json:"args,omitempty"`
-}

router/websocket/websocket.go

@@ -1,341 +0,0 @@
-package websocket
-
-import (
-	"context"
-	"encoding/json"
-	"fmt"
-	"github.com/apex/log"
-	"github.com/gbrlsnchs/jwt/v3"
-	"github.com/google/uuid"
-	"github.com/gorilla/websocket"
-	"github.com/pkg/errors"
-	"github.com/pterodactyl/wings/config"
-	"github.com/pterodactyl/wings/environment"
-	"github.com/pterodactyl/wings/router/tokens"
-	"github.com/pterodactyl/wings/server"
-	"net/http"
-	"strings"
-	"sync"
-	"time"
-)
-
-const (
-	PermissionConnect          = "websocket.connect"
-	PermissionSendCommand      = "control.console"
-	PermissionSendPowerStart   = "control.start"
-	PermissionSendPowerStop    = "control.stop"
-	PermissionSendPowerRestart = "control.restart"
-	PermissionReceiveErrors    = "admin.websocket.errors"
-	PermissionReceiveInstall   = "admin.websocket.install"
-	PermissionReceiveBackups   = "backup.read"
-)
-
-type Handler struct {
-	sync.RWMutex
-	Connection *websocket.Conn
-	jwt        *tokens.WebsocketPayload `json:"-"`
-	server     *server.Server
-}
-
-// Parses a JWT into a websocket token payload.
-func NewTokenPayload(token []byte) (*tokens.WebsocketPayload, error) {
-	payload := tokens.WebsocketPayload{}
-	err := tokens.ParseToken(token, &payload)
-	if err != nil {
-		return nil, err
-	}
-
-	if !payload.HasPermission(PermissionConnect) {
-		return nil, errors.New("not authorized to connect to this socket")
-	}
-
-	return &payload, nil
-}
-
-// Returns a new websocket handler using the context provided.
-func GetHandler(s *server.Server, w http.ResponseWriter, r *http.Request) (*Handler, error) {
-	upgrader := websocket.Upgrader{
-		// Ensure that the websocket request is originating from the Panel itself,
-		// and not some other location.
-		CheckOrigin: func(r *http.Request) bool {
-			o := r.Header.Get("Origin")
-			if o == config.Get().PanelLocation {
-				return true
-			}
-
-			for _, origin := range config.Get().AllowedOrigins {
-				if o != origin {
-					continue
-				}
-
-				return true
-			}
-
-			return false
-		},
-	}
-
-	conn, err := upgrader.Upgrade(w, r, nil)
-	if err != nil {
-		return nil, err
-	}
-
-	return &Handler{
-		Connection: conn,
-		jwt:        nil,
-		server:     s,
-	}, nil
-}
-
-func (h *Handler) SendJson(v *Message) error {
-	// Do not send JSON down the line if the JWT on the connection is not
-	// valid!
-	if err := h.TokenValid(); err != nil {
-		return nil
-	}
-
-	j := h.GetJwt()
-	if j != nil {
-		// If we're sending installation output but the user does not have the required
-		// permissions to see the output, don't send it down the line.
-		if v.Event == server.InstallOutputEvent {
-			if !j.HasPermission(PermissionReceiveInstall) {
-				return nil
-			}
-		}
-
-		// If the user does not have permission to see backup events, do not emit
-		// them over the socket.
-		if strings.HasPrefix(v.Event, server.BackupCompletedEvent) {
-			if !j.HasPermission(PermissionReceiveBackups) {
-				return nil
-			}
-		}
-	}
-
-	return h.unsafeSendJson(v)
-}
-
-// Sends JSON over the websocket connection, ignoring the authentication state of the
-// socket user. Do not call this directly unless you are positive a response should be
-// sent back to the client!
-func (h *Handler) unsafeSendJson(v interface{}) error {
-	h.Lock()
-	defer h.Unlock()
-
-	return h.Connection.WriteJSON(v)
-}
-
-// Checks if the JWT is still valid.
-func (h *Handler) TokenValid() error {
-	j := h.GetJwt()
-	if j == nil {
-		return errors.New("no jwt present")
-	}
-
-	if err := jwt.ExpirationTimeValidator(time.Now())(&j.Payload); err != nil {
-		return err
-	}
-
-	if !j.HasPermission(PermissionConnect) {
-		return errors.New("jwt does not have connect permission")
-	}
-
-	if h.server.Id() != j.GetServerUuid() {
-		return errors.New("jwt server uuid mismatch")
-	}
-
-	return nil
-}
-
-// Sends an error back to the connected websocket instance by checking the permissions
-// of the token. If the user has the "receive-errors" grant we will send back the actual
-// error message, otherwise we just send back a standard error message.
-func (h *Handler) SendErrorJson(msg Message, err error, shouldLog ...bool) error {
-	j := h.GetJwt()
-
-	message := "an unexpected error was encountered while handling this request"
-	if server.IsSuspendedError(err) || (j != nil && j.HasPermission(PermissionReceiveErrors)) {
-		message = err.Error()
-	}
-
-	m, u := h.GetErrorMessage(message)
-
-	wsm := Message{Event: ErrorEvent}
-	wsm.Args = []string{m}
-
-	if len(shouldLog) == 0 || (len(shouldLog) == 1 && shouldLog[0] == true) {
-		if !server.IsSuspendedError(err) {
-			h.server.Log().WithFields(log.Fields{"event": msg.Event, "error_identifier": u.String(), "error": err}).
-				Error("failed to handle websocket process; an error was encountered processing an event")
-		}
-	}
-
-	return h.unsafeSendJson(wsm)
-}
-
-// Converts an error message into a more readable representation and returns a UUID
-// that can be cross-referenced to find the specific error that triggered.
-func (h *Handler) GetErrorMessage(msg string) (string, uuid.UUID) {
-	u := uuid.Must(uuid.NewRandom())
-
-	m := fmt.Sprintf("Error Event [%s]: %s", u.String(), msg)
-
-	return m, u
-}
-
-// Sets the JWT for the websocket in a race-safe manner.
-func (h *Handler) setJwt(token *tokens.WebsocketPayload) {
-	h.Lock()
-	h.jwt = token
-	h.Unlock()
-}
-
-func (h *Handler) GetJwt() *tokens.WebsocketPayload {
-	h.RLock()
-	defer h.RUnlock()
-
-	return h.jwt
-}
-
-// Handle the inbound socket request and route it to the proper server action.
-func (h *Handler) HandleInbound(m Message) error {
-	if m.Event != AuthenticationEvent {
-		if err := h.TokenValid(); err != nil {
-			log.WithField("message", err.Error()).Debug("jwt for server websocket is no longer valid")
-
-			h.unsafeSendJson(Message{
-				Event: ErrorEvent,
-				Args:  []string{"could not authenticate client: " + err.Error()},
-			})
-
-			return nil
-		}
-	}
-
-	switch m.Event {
-	case AuthenticationEvent:
-		{
-			token, err := NewTokenPayload([]byte(strings.Join(m.Args, "")))
-			if err != nil {
-				// If the error says the JWT expired, send a token expired
-				// event and hopefully the client renews the token.
-				if err == jwt.ErrExpValidation {
-					h.SendJson(&Message{Event: TokenExpiredEvent})
-					return nil
-				}
-
-				return err
-			}
-
-			// Check if the user has previously authenticated successfully.
-			newConnection := h.GetJwt() == nil
-
-			// Previously there was a HasPermission(PermissionConnect) check around this,
-			// however NewTokenPayload will return an error if it doesn't have the connect
-			// permission meaning that it was a redundant function call.
-			h.setJwt(token)
-
-			// Tell the client they authenticated successfully.
-			h.unsafeSendJson(Message{
-				Event: AuthenticationSuccessEvent,
-				Args:  []string{},
-			})
-
-			// Check if the client was refreshing their authentication token
-			// instead of authenticating for the first time.
-			if !newConnection {
-				// This prevents duplicate status messages as outlined in
-				// https://github.com/pterodactyl/panel/issues/2077
-				return nil
-			}
-
-			// On every authentication event, send the current server status back
-			// to the client. :)
-			state := h.server.GetState()
-			h.SendJson(&Message{
-				Event: server.StatusEvent,
-				Args:  []string{state},
-			})
-
-			// Only send the current disk usage if the server is offline, if docker container is running,
-			// Environment#EnableResourcePolling() will send this data to all clients.
-			if state == environment.ProcessOfflineState {
-				_ = h.server.Filesystem.HasSpaceAvailable()
-
-				b, _ := json.Marshal(h.server.Proc())
-				h.SendJson(&Message{
-					Event: server.StatsEvent,
-					Args:  []string{string(b)},
-				})
-			}
-
-			return nil
-		}
-	case SetStateEvent:
-		{
-			action := server.PowerAction(strings.Join(m.Args, ""))
-
-			actions := make(map[server.PowerAction]string)
-			actions[server.PowerActionStart] = PermissionSendPowerStart
-			actions[server.PowerActionStop] = PermissionSendPowerStop
-			actions[server.PowerActionRestart] = PermissionSendPowerRestart
-			actions[server.PowerActionTerminate] = PermissionSendPowerStop
-
-			// Check that they have permission to perform this action if it is needed.
-			if permission, exists := actions[action]; exists {
-				if !h.GetJwt().HasPermission(permission) {
-					return nil
-				}
-			}
-
-			err := h.server.HandlePowerAction(action)
-			if errors.Is(err, context.DeadlineExceeded) {
-				m, _ := h.GetErrorMessage("another power action is currently being processed for this server, please try again later")
-
-				h.SendJson(&Message{
-					Event: ErrorEvent,
-					Args:  []string{m},
-				})
-
-				return nil
-			}
-
-			return err
-		}
-	case SendServerLogsEvent:
-		{
-			if running, _ := h.server.Environment.IsRunning(); !running {
-				return nil
-			}
-
-			logs, err := h.server.Environment.Readlog(1024 * 16)
-			if err != nil {
-				return err
-			}
-
-			for _, line := range logs {
-				h.SendJson(&Message{
-					Event: server.ConsoleOutputEvent,
-					Args:  []string{line},
-				})
-			}
-
-			return nil
-		}
-	case SendCommandEvent:
-		{
-			if !h.GetJwt().HasPermission(PermissionSendCommand) {
-				return nil
-			}
-
-			if h.server.GetState() == environment.ProcessOfflineState {
-				return nil
-			}
-
-			return h.server.Environment.SendCommand(strings.Join(m.Args, ""))
-		}
-	}
-
-	return nil
-}

server/archiver.go

@@ -1,111 +0,0 @@
-package server
-
-import (
-	"crypto/sha256"
-	"encoding/hex"
-	"github.com/mholt/archiver/v3"
-	"github.com/pterodactyl/wings/config"
-	"io"
-	"io/ioutil"
-	"os"
-	"path/filepath"
-)
-
-// Archiver represents a Server Archiver.
-type Archiver struct {
-	Server *Server
-}
-
-// ArchivePath returns the path to the server's archive.
-func (a *Archiver) ArchivePath() string {
-	return filepath.Join(config.Get().System.ArchiveDirectory, a.ArchiveName())
-}
-
-// ArchiveName returns the name of the server's archive.
-func (a *Archiver) ArchiveName() string {
-	return a.Server.Id() + ".tar.gz"
-}
-
-// Exists returns a boolean based off if the archive exists.
-func (a *Archiver) Exists() bool {
-	if _, err := os.Stat(a.ArchivePath()); os.IsNotExist(err) {
-		return false
-	}
-
-	return true
-}
-
-// Stat stats the archive file.
-func (a *Archiver) Stat() (*Stat, error) {
-	return a.Server.Filesystem.unsafeStat(a.ArchivePath())
-}
-
-// Archive creates an archive of the server and deletes the previous one.
-func (a *Archiver) Archive() error {
-	path := a.Server.Filesystem.Path()
-
-	// Get the list of root files and directories to archive.
-	var files []string
-	fileInfo, err := ioutil.ReadDir(path)
-	if err != nil {
-		return err
-	}
-
-	for _, file := range fileInfo {
-		f, err := a.Server.Filesystem.SafeJoin(path, file)
-		if err != nil {
-			return err
-		}
-
-		files = append(files, f)
-	}
-
-	stat, err := a.Stat()
-	if err != nil && !os.IsNotExist(err) {
-		return err
-	}
-
-	// Check if the file exists.
-	if stat != nil {
-		if err := os.Remove(a.ArchivePath()); err != nil {
-			return err
-		}
-	}
-
-	return archiver.NewTarGz().Archive(files, a.ArchivePath())
-}
-
-// DeleteIfExists deletes the archive if it exists.
-func (a *Archiver) DeleteIfExists() error {
-	stat, err := a.Stat()
-	if err != nil && !os.IsNotExist(err) {
-		return err
-	}
-
-	// Check if the file exists.
-	if stat != nil {
-		if err := os.Remove(a.ArchivePath()); err != nil {
-			return err
-		}
-	}
-
-	return nil
-}
-
-// Checksum computes a SHA256 checksum of the server's archive.
-func (a *Archiver) Checksum() (string, error) {
-	file, err := os.Open(a.ArchivePath())
-	if err != nil {
-		return "", err
-	}
-	defer file.Close()
-
-	hash := sha256.New()
-
-	buf := make([]byte, 1024*4)
-	if _, err := io.CopyBuffer(hash, file, buf); err != nil {
-		return "", err
-	}
-
-	return hex.EncodeToString(hash.Sum(nil)), nil
-}

server/backup.go

@@ -1,127 +0,0 @@
-package server
-
-import (
-	"bufio"
-	"github.com/apex/log"
-	"github.com/pkg/errors"
-	"github.com/pterodactyl/wings/api"
-	"github.com/pterodactyl/wings/server/backup"
-	"os"
-	"path"
-)
-
-// Notifies the panel of a backup's state and returns an error if one is encountered
-// while performing this action.
-func (s *Server) notifyPanelOfBackup(uuid string, ad *backup.ArchiveDetails, successful bool) error {
-	r := api.NewRequester()
-	rerr, err := r.SendBackupStatus(uuid, ad.ToRequest(successful))
-	if rerr != nil || err != nil {
-		if err != nil {
-			s.Log().WithFields(log.Fields{
-				"backup": uuid,
-				"error":  err,
-			}).Error("failed to notify panel of backup status due to internal code error")
-
-			return err
-		}
-
-		s.Log().WithField("backup", uuid).Warn(rerr.String())
-
-		return errors.New(rerr.String())
-	}
-
-	return nil
-}
-
-// Get all of the ignored files for a server based on its .pteroignore file in the root.
-func (s *Server) getServerwideIgnoredFiles() ([]string, error) {
-	var ignored []string
-
-	f, err := os.Open(path.Join(s.Filesystem.Path(), ".pteroignore"))
-	if err != nil {
-		if !os.IsNotExist(err) {
-			return nil, err
-		}
-	} else {
-		scanner := bufio.NewScanner(f)
-		for scanner.Scan() {
-			// Only include non-empty lines, for the sake of clarity...
-			if t := scanner.Text(); t != "" {
-				ignored = append(ignored, t)
-			}
-		}
-
-		if err := scanner.Err(); err != nil {
-			return nil, err
-		}
-	}
-
-	return ignored, nil
-}
-
-// Get the backup files to include when generating it.
-func (s *Server) GetIncludedBackupFiles(ignored []string) (*backup.IncludedFiles, error) {
-	// If no ignored files are present in the request, check for a .pteroignore file in the root
-	// of the server files directory, and use that to generate the backup.
-	if len(ignored) == 0 {
-		if i, err := s.getServerwideIgnoredFiles(); err != nil {
-			s.Log().WithField("error", err).Warn("failed to retrieve ignored files listing for server")
-		} else {
-			ignored = i
-		}
-	}
-
-	// Get the included files based on the root path and the ignored files provided.
-	return s.Filesystem.GetIncludedFiles(s.Filesystem.Path(), ignored)
-}
-
-// Performs a server backup and then emits the event over the server websocket. We
-// let the actual backup system handle notifying the panel of the status, but that
-// won't emit a websocket event.
-func (s *Server) Backup(b backup.BackupInterface) error {
-	// Get the included files based on the root path and the ignored files provided.
-	inc, err := s.GetIncludedBackupFiles(b.Ignored())
-	if err != nil {
-		return errors.WithStack(err)
-	}
-
-	ad, err := b.Generate(inc, s.Filesystem.Path())
-	if err != nil {
-		if notifyError := s.notifyPanelOfBackup(b.Identifier(), &backup.ArchiveDetails{}, false); notifyError != nil {
-			s.Log().WithFields(log.Fields{
-				"backup": b.Identifier(),
-				"error":  err,
-			}).Warn("failed to notify panel of failed backup state")
-		}
-
-		s.Events().PublishJson(BackupCompletedEvent+":"+b.Identifier(), map[string]interface{}{
-			"uuid":          b.Identifier(),
-			"is_successful": false,
-			"checksum":      "",
-			"checksum_type": "sha1",
-			"file_size":     0,
-		})
-
-		return errors.WithStack(err)
-	}
-
-	// Try to notify the panel about the status of this backup. If for some reason this request
-	// fails, delete the archive from the daemon and return that error up the chain to the caller.
-	if notifyError := s.notifyPanelOfBackup(b.Identifier(), ad, true); notifyError != nil {
-		b.Remove()
-
-		return notifyError
-	}
-
-	// Emit an event over the socket so we can update the backup in realtime on
-	// the frontend for the server.
-	s.Events().PublishJson(BackupCompletedEvent+":"+b.Identifier(), map[string]interface{}{
-		"uuid":          b.Identifier(),
-		"is_successful": true,
-		"checksum":      ad.Checksum,
-		"checksum_type": "sha1",
-		"file_size":     ad.Size,
-	})
-
-	return nil
-}

server/backup/archiver.go

@@ -1,126 +0,0 @@
-package backup
-
-import (
-	"archive/tar"
-	"context"
-	"github.com/apex/log"
-	gzip "github.com/klauspost/pgzip"
-	"github.com/pkg/errors"
-	"github.com/remeh/sizedwaitgroup"
-	"golang.org/x/sync/errgroup"
-	"io"
-	"os"
-	"runtime"
-	"strings"
-	"sync"
-)
-
-type Archive struct {
-	sync.Mutex
-
-	TrimPrefix string
-	Files      *IncludedFiles
-}
-
-// Creates an archive at dst with all of the files defined in the included files struct.
-func (a *Archive) Create(dst string, ctx context.Context) (os.FileInfo, error) {
-	f, err := os.OpenFile(dst, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0600)
-	if err != nil {
-		return nil, err
-	}
-	defer f.Close()
-
-	maxCpu := runtime.NumCPU() / 2
-	if maxCpu > 4 {
-		maxCpu = 4
-	}
-
-	gzw, _ := gzip.NewWriterLevel(f, gzip.BestSpeed)
-	_ = gzw.SetConcurrency(1 << 20, maxCpu)
-
-	defer gzw.Flush()
-	defer gzw.Close()
-
-	tw := tar.NewWriter(gzw)
-	defer tw.Flush()
-	defer tw.Close()
-
-	wg := sizedwaitgroup.New(10)
-	g, ctx := errgroup.WithContext(ctx)
-	// Iterate over all of the files to be included and put them into the archive. This is
-	// done as a concurrent goroutine to speed things along. If an error is encountered at
-	// any step, the entire process is aborted.
-	for _, p := range a.Files.All() {
-		p := p
-		g.Go(func() error {
-			wg.Add()
-			defer wg.Done()
-
-			select {
-			case <-ctx.Done():
-				return ctx.Err()
-			default:
-				return a.addToArchive(p, tw)
-			}
-		})
-	}
-
-	// Block until the entire routine is completed.
-	if err := g.Wait(); err != nil {
-		f.Close()
-
-		// Attempt to remove the archive if there is an error, report that error to
-		// the logger if it fails.
-		if rerr := os.Remove(dst); rerr != nil && !os.IsNotExist(rerr) {
-			log.WithField("location", dst).Warn("failed to delete corrupted backup archive")
-		}
-
-		return nil, err
-	}
-
-	st, err := f.Stat()
-	if err != nil {
-		return nil, err
-	}
-
-	return st, nil
-}
-
-// Adds a single file to the existing tar archive writer.
-func (a *Archive) addToArchive(p string, w *tar.Writer) error {
-	f, err := os.Open(p)
-	if err != nil {
-		return err
-	}
-	defer f.Close()
-
-	s, err := f.Stat()
-	if err != nil {
-		return errors.WithStack(err)
-	}
-
-	header := &tar.Header{
-		// Trim the long server path from the name of the file so that the resulting
-		// archive is exactly how the user would see it in the panel file manager.
-		Name:    strings.TrimPrefix(p, a.TrimPrefix),
-		Size:    s.Size(),
-		Mode:    int64(s.Mode()),
-		ModTime: s.ModTime(),
-	}
-
-	// These actions must occur sequentially, even if this function is called multiple
-	// in parallel. You'll get some nasty panic's otherwise.
-	a.Lock()
-	defer a.Unlock()
-
-	if err := w.WriteHeader(header); err != nil {
-		return err
-	}
-
-	buf := make([]byte, 4*1024)
-	if _, err := io.CopyBuffer(w, f, buf); err != nil {
-		return err
-	}
-
-	return nil
-}

server/backup/backup.go

@@ -1,158 +0,0 @@
-package backup
-
-import (
-	"crypto/sha1"
-	"encoding/hex"
-	"github.com/apex/log"
-	"github.com/pkg/errors"
-	"github.com/pterodactyl/wings/api"
-	"github.com/pterodactyl/wings/config"
-	"io"
-	"os"
-	"path"
-	"sync"
-)
-
-const (
-	LocalBackupAdapter = "wings"
-	S3BackupAdapter    = "s3"
-)
-
-type ArchiveDetails struct {
-	Checksum     string `json:"checksum"`
-	ChecksumType string `json:"checksum_type"`
-	Size         int64  `json:"size"`
-}
-
-// Returns a request object.
-func (ad *ArchiveDetails) ToRequest(successful bool) api.BackupRequest {
-	return api.BackupRequest{
-		Checksum:     ad.Checksum,
-		ChecksumType: ad.ChecksumType,
-		Size:         ad.Size,
-		Successful:   successful,
-	}
-}
-
-type Backup struct {
-	// The UUID of this backup object. This must line up with a backup from
-	// the panel instance.
-	Uuid string `json:"uuid"`
-
-	// An array of files to ignore when generating this backup. This should be
-	// compatible with a standard .gitignore structure.
-	IgnoredFiles []string `json:"ignored_files"`
-}
-
-// noinspection GoNameStartsWithPackageName
-type BackupInterface interface {
-	// Returns the UUID of this backup as tracked by the panel instance.
-	Identifier() string
-
-	// Generates a backup in whatever the configured source for the specific
-	// implementation is.
-	Generate(*IncludedFiles, string) (*ArchiveDetails, error)
-
-	// Returns the ignored files for this backup instance.
-	Ignored() []string
-
-	// Returns a SHA256 checksum for the generated backup.
-	Checksum() ([]byte, error)
-
-	// Returns the size of the generated backup.
-	Size() (int64, error)
-
-	// Returns the path to the backup on the machine. This is not always the final
-	// storage location of the backup, simply the location we're using to store
-	// it until it is moved to the final spot.
-	Path() string
-
-	// Returns details about the archive.
-	Details() *ArchiveDetails
-
-	// Removes a backup file.
-	Remove() error
-}
-
-func (b *Backup) Identifier() string {
-	return b.Uuid
-}
-
-// Returns the path for this specific backup.
-func (b *Backup) Path() string {
-	return path.Join(config.Get().System.BackupDirectory, b.Identifier()+".tar.gz")
-}
-
-// Return the size of the generated backup.
-func (b *Backup) Size() (int64, error) {
-	st, err := os.Stat(b.Path())
-	if err != nil {
-		return 0, errors.WithStack(err)
-	}
-
-	return st.Size(), nil
-}
-
-// Returns the SHA256 checksum of a backup.
-func (b *Backup) Checksum() ([]byte, error) {
-	h := sha1.New()
-
-	f, err := os.Open(b.Path())
-	if err != nil {
-		return nil, errors.WithStack(err)
-	}
-	defer f.Close()
-
-	buf := make([]byte, 1024*4)
-	if _, err := io.CopyBuffer(h, f, buf); err != nil {
-		return nil, err
-	}
-
-	return h.Sum(nil), nil
-}
-
-// Returns details of the archive by utilizing two go-routines to get the checksum and
-// the size of the archive.
-func (b *Backup) Details() *ArchiveDetails {
-	wg := sync.WaitGroup{}
-	wg.Add(2)
-
-	var checksum string
-	// Calculate the checksum for the file.
-	go func() {
-		defer wg.Done()
-
-		resp, err := b.Checksum()
-		if err != nil {
-			log.WithFields(log.Fields{
-				"backup": b.Identifier(),
-				"error":  err,
-			}).Error("failed to calculate checksum for backup")
-		}
-
-		checksum = hex.EncodeToString(resp)
-	}()
-
-	var sz int64
-	go func() {
-		defer wg.Done()
-
-		if s, err := b.Size(); err != nil {
-			return
-		} else {
-			sz = s
-		}
-	}()
-
-	wg.Wait()
-
-	return &ArchiveDetails{
-		Checksum:     checksum,
-		ChecksumType: "sha1",
-		Size:         sz,
-	}
-}
-
-func (b *Backup) Ignored() []string {
-	return b.IgnoredFiles
-}

server/backup/backup_local.go

@@ -1,55 +0,0 @@
-package backup
-
-import (
-	"context"
-	"github.com/pkg/errors"
-	"os"
-)
-
-type LocalBackup struct {
-	Backup
-}
-
-var _ BackupInterface = (*LocalBackup)(nil)
-
-// Locates the backup for a server and returns the local path. This will obviously only
-// work if the backup was created as a local backup.
-func LocateLocal(uuid string) (*LocalBackup, os.FileInfo, error) {
-	b := &LocalBackup{
-		Backup{
-			Uuid:         uuid,
-			IgnoredFiles: nil,
-		},
-	}
-
-	st, err := os.Stat(b.Path())
-	if err != nil {
-		return nil, nil, err
-	}
-
-	if st.IsDir() {
-		return nil, nil, errors.New("invalid archive found; is directory")
-	}
-
-	return b, st, nil
-}
-
-// Removes a backup from the system.
-func (b *LocalBackup) Remove() error {
-	return os.Remove(b.Path())
-}
-
-// Generates a backup of the selected files and pushes it to the defined location
-// for this instance.
-func (b *LocalBackup) Generate(included *IncludedFiles, prefix string) (*ArchiveDetails, error) {
-	a := &Archive{
-		TrimPrefix: prefix,
-		Files:      included,
-	}
-
-	if _, err := a.Create(b.Path(), context.Background()); err != nil {
-		return nil, err
-	}
-
-	return b.Details(), nil
-}

server/backup/backup_request.go

@@ -1,46 +0,0 @@
-package backup
-
-import (
-	"fmt"
-	"github.com/pkg/errors"
-)
-
-type Request struct {
-	Adapter      string   `json:"adapter"`
-	Uuid         string   `json:"uuid"`
-	IgnoredFiles []string `json:"ignored_files"`
-	PresignedUrl string   `json:"presigned_url"`
-}
-
-// Generates a new local backup struct.
-func (r *Request) NewLocalBackup() (*LocalBackup, error) {
-	if r.Adapter != LocalBackupAdapter {
-		return nil, errors.New(fmt.Sprintf("cannot create local backup using [%s] adapter", r.Adapter))
-	}
-
-	return &LocalBackup{
-		Backup{
-			Uuid:         r.Uuid,
-			IgnoredFiles: r.IgnoredFiles,
-		},
-	}, nil
-}
-
-// Generates a new S3 backup struct.
-func (r *Request) NewS3Backup() (*S3Backup, error) {
-	if r.Adapter != S3BackupAdapter {
-		return nil, errors.New(fmt.Sprintf("cannot create s3 backup using [%s] adapter", r.Adapter))
-	}
-
-	if len(r.PresignedUrl) == 0 {
-		return nil, errors.New("a valid presigned S3 upload URL must be provided to use the [s3] adapter")
-	}
-
-	return &S3Backup{
-		Backup: Backup{
-			Uuid:         r.Uuid,
-			IgnoredFiles: r.IgnoredFiles,
-		},
-		PresignedUrl: r.PresignedUrl,
-	}, nil
-}

server/backup/backup_s3.go

@@ -1,86 +0,0 @@
-package backup
-
-import (
-	"context"
-	"fmt"
-	"github.com/apex/log"
-	"io"
-	"net/http"
-	"os"
-	"strconv"
-)
-
-type S3Backup struct {
-	Backup
-
-	// The pre-signed upload endpoint for the generated backup. This must be
-	// provided otherwise this request will fail. This allows us to keep all
-	// of the keys off the daemon instances and the panel can handle generating
-	// the credentials for us.
-	PresignedUrl string
-}
-
-var _ BackupInterface = (*S3Backup)(nil)
-
-// Generates a new backup on the disk, moves it into the S3 bucket via the provided
-// presigned URL, and then deletes the backup from the disk.
-func (s *S3Backup) Generate(included *IncludedFiles, prefix string) (*ArchiveDetails, error) {
-	defer s.Remove()
-
-	a := &Archive{
-		TrimPrefix: prefix,
-		Files:      included,
-	}
-
-	if _, err := a.Create(s.Path(), context.Background()); err != nil {
-		return nil, err
-	}
-
-	rc, err := os.Open(s.Path())
-	if err != nil {
-		return nil, err
-	}
-	defer rc.Close()
-
-	if resp, err := s.generateRemoteRequest(rc); err != nil {
-		return nil, err
-	} else {
-		resp.Body.Close()
-
-		if resp.StatusCode != http.StatusOK {
-			return nil, fmt.Errorf("failed to put S3 object, %d:%s", resp.StatusCode, resp.Status)
-		}
-	}
-
-	return s.Details(), err
-}
-
-// Removes a backup from the system.
-func (s *S3Backup) Remove() error {
-	return os.Remove(s.Path())
-}
-
-// Generates the remote S3 request and begins the upload.
-func (s *S3Backup) generateRemoteRequest(rc io.ReadCloser) (*http.Response, error) {
-	r, err := http.NewRequest(http.MethodPut, s.PresignedUrl, nil)
-	if err != nil {
-		return nil, err
-	}
-
-	if sz, err := s.Size(); err != nil {
-		return nil, err
-	} else {
-		r.ContentLength = sz
-		r.Header.Add("Content-Length", strconv.Itoa(int(sz)))
-		r.Header.Add("Content-Type", "application/x-gzip")
-	}
-
-	r.Body = rc
-	
-	log.WithFields(log.Fields{
-		"endpoint": s.PresignedUrl,
-		"headers": r.Header,
-	}).Debug("uploading backup to remote S3 endpoint")
-
-	return http.DefaultClient.Do(r)
-}

server/backup/included.go

@@ -1,25 +0,0 @@
-package backup
-
-import (
-	"sync"
-)
-
-type IncludedFiles struct {
-	sync.RWMutex
-	files []string
-}
-
-// Pushes an additional file or folder onto the struct.
-func (i *IncludedFiles) Push(p string) {
-	i.Lock()
-	i.files = append(i.files, p) // ~~
-	i.Unlock()
-}
-
-// Returns all of the files that were marked as being included.
-func (i *IncludedFiles) All() []string {
-	i.RLock()
-	defer i.RUnlock()
-
-	return i.files
-}

server/collection.go

@@ -4,35 +4,34 @@ import "sync"
 
 type Collection struct {
 	items []*Server
-	sync.RWMutex
+	mutex *sync.Mutex
 }
 
 // Create a new collection from a slice of servers.
 func NewCollection(servers []*Server) *Collection {
 	return &Collection{
 		items: servers,
+		mutex: &sync.Mutex{},
 	}
 }
 
 // Return all of the items in the collection.
 func (c *Collection) All() []*Server {
-	c.RLock()
-	defer c.RUnlock()
-
 	return c.items
 }
 
 // Adds an item to the collection store.
 func (c *Collection) Add(s *Server) {
-	c.Lock()
+	c.mutex.Lock()
+	defer c.mutex.Unlock()
+
 	c.items = append(c.items, s)
-	c.Unlock()
 }
 
 // Returns only those items matching the filter criteria.
 func (c *Collection) Filter(filter func(*Server) bool) []*Server {
-	c.RLock()
-	defer c.RUnlock()
+	c.mutex.Lock()
+	defer c.mutex.Unlock()
 
 	r := make([]*Server, 0)
 	for _, v := range c.items {
@@ -47,9 +46,6 @@ func (c *Collection) Filter(filter func(*Server) bool) []*Server {
 // Returns a single element from the collection matching the filter. If nothing is
 // found a nil result is returned.
 func (c *Collection) Find(filter func(*Server) bool) *Server {
-	c.RLock()
-	defer c.RUnlock()
-
 	for _, v := range c.items {
 		if filter(v) {
 			return v
@@ -61,8 +57,8 @@ func (c *Collection) Find(filter func(*Server) bool) *Server {
 
 // Removes all items from the collection that match the filter function.
 func (c *Collection) Remove(filter func(*Server) bool) {
-	c.Lock()
-	defer c.Unlock()
+	c.mutex.Lock()
+	defer c.mutex.Unlock()
 
 	r := make([]*Server, 0)
 	for _, v := range c.items {

server/config_parser.go

@@ -1,32 +1,34 @@
 package server
 
 import (
-	"github.com/gammazero/workerpool"
-	"runtime"
+	"github.com/pterodactyl/wings/parser"
+	"go.uber.org/zap"
+	"sync"
 )
 
 // Parent function that will update all of the defined configuration files for a server
 // automatically to ensure that they always use the specified values.
 func (s *Server) UpdateConfigurationFiles() {
-	pool := workerpool.New(runtime.NumCPU())
+	wg := new(sync.WaitGroup)
 
-	files := s.ProcessConfiguration().ConfigurationFiles
-	for _, cf := range files {
-		f := cf
+	for _, v := range s.processConfiguration.ConfigurationFiles {
+		wg.Add(1)
+
+		go func(f parser.ConfigurationFile, server *Server) {
+			defer wg.Done()
 
-		pool.Submit(func() {
 			p, err := s.Filesystem.SafePath(f.FileName)
 			if err != nil {
-				s.Log().WithField("error", err).Error("failed to generate safe path for configuration file")
+				zap.S().Errorw("failed to generate safe path for configuration file", zap.String("server", server.Uuid), zap.Error(err))
 
 				return
 			}
 
 			if err := f.Parse(p, false); err != nil {
-				s.Log().WithField("error", err).Error("failed to parse and update server configuration file")
+				zap.S().Errorw("failed to parse and update server configuration file", zap.String("server", server.Uuid), zap.Error(err))
 			}
-		})
+		}(v, s)
 	}
 
-	pool.StopWait()
+	wg.Wait()
 }

server/configuration.go

@@ -1,57 +1,31 @@
 package server
 
 import (
-	"github.com/pterodactyl/wings/environment"
-	"sync"
+	"github.com/pkg/errors"
+	"gopkg.in/yaml.v2"
+	"os"
 )
 
-type Configuration struct {
-	mu sync.RWMutex
+// Writes the server configuration to the disk. The saved configuration will be returned
+// back to the calling function to use if desired.
+func (s *Server) WriteConfigurationToDisk() ([]byte, error) {
+	s.mutex.Lock()
+	defer s.mutex.Unlock()
 
-	// The unique identifier for the server that should be used when referencing
-	// it against the Panel API (and internally). This will be used when naming
-	// docker containers as well as in log output.
-	Uuid string `json:"uuid"`
+	f, err := os.Create("data/servers/" + s.Uuid + ".yml")
+	if err != nil {
+		return nil, errors.WithStack(err)
+	}
+	defer f.Close()
 
-	// Whether or not the server is in a suspended state. Suspended servers cannot
-	// be started or modified except in certain scenarios by an admin user.
-	Suspended bool `json:"suspended"`
+	b, err := yaml.Marshal(&s)
+	if err != nil {
+		return nil, errors.WithStack(err)
+	}
 
-	// The command that should be used when booting up the server instance.
-	Invocation string `json:"invocation"`
+	if _, err := f.Write(b); err != nil {
+		return nil, errors.WithStack(err)
+	}
 
-	// An array of environment variables that should be passed along to the running
-	// server process.
-	EnvVars environment.Variables `json:"environment"`
-
-	Allocations           environment.Allocations `json:"allocations"`
-	Build                 environment.Limits      `json:"build"`
-	CrashDetectionEnabled bool                    `default:"true" json:"enabled" yaml:"enabled"`
-	Mounts                []Mount                 `json:"mounts"`
-	Resources             ResourceUsage           `json:"resources"`
-
-	Container struct {
-		// Defines the Docker image that will be used for this server
-		Image string `json:"image,omitempty"`
-	} `json:"container,omitempty"`
-}
-
-func (s *Server) Config() *Configuration {
-	s.cfg.mu.RLock()
-	defer s.cfg.mu.RUnlock()
-
-	return &s.cfg
-}
-
-func (c *Configuration) GetUuid() string {
-	c.mu.RLock()
-	defer c.mu.RUnlock()
-
-	return c.Uuid
-}
-
-func (c *Configuration) SetSuspended(s bool) {
-	c.mu.Lock()
-	c.Suspended = s
-	c.mu.Unlock()
+	return b, nil
 }

server/console.go

@@ -1,107 +1,21 @@
 package server
 
-import (
-	"fmt"
-	"github.com/mitchellh/colorstring"
-	"github.com/pterodactyl/wings/config"
-	"sync"
-	"sync/atomic"
-	"time"
-)
+import "io"
 
-type ConsoleThrottler struct {
-	sync.RWMutex
-	config.ConsoleThrottles
-
-	// The total number of activations that have occurred thus far.
-	activations uint64
-
-	// The total number of lines processed so far during the given time period.
-	lines uint64
-
-	lastIntervalTime *time.Time
-	lastDecayTime    *time.Time
+type Console struct {
+	Server *Server
+	HandlerFunc *func(string)
 }
 
-// Increments the number of activations for a server.
-func (ct *ConsoleThrottler) AddActivation() uint64 {
-	ct.Lock()
-	defer ct.Unlock()
+var _ io.Writer = Console{}
 
-	ct.activations += 1
+func (c Console) Write(b []byte) (int, error) {
+	if c.HandlerFunc != nil {
+		l := make([]byte, len(b))
+		copy(l, b)
 
-	return ct.activations
-}
-
-// Decrements the number of activations for a server.
-func (ct *ConsoleThrottler) RemoveActivation() uint64 {
-	ct.Lock()
-	defer ct.Unlock()
-
-	if ct.activations == 0 {
-		return 0
+		(*c.HandlerFunc)(string(l))
 	}
 
-	ct.activations -= 1
-
-	return ct.activations
-}
-
-// Increment the total count of lines that we have processed so far.
-func (ct *ConsoleThrottler) IncrementLineCount() uint64 {
-	return atomic.AddUint64(&ct.lines, 1)
-}
-
-// Reset the line count to zero.
-func (ct *ConsoleThrottler) ResetLineCount() {
-	atomic.SwapUint64(&ct.lines, 0)
-}
-
-// Handles output from a server's console. This code ensures that a server is not outputting
-// an excessive amount of data to the console that could indicate a malicious or run-away process
-// and lead to performance issues for other users.
-//
-// This was much more of a problem for the NodeJS version of the daemon which struggled to handle
-// large volumes of output. However, this code is much more performant so I generally feel a lot
-// better about it's abilities.
-//
-// However, extreme output is still somewhat of a DoS attack vector against this software since we
-// are still logging it to the disk temporarily and will want to avoid dumping a huge amount of
-// data all at once. These values are all configurable via the wings configuration file, however the
-// defaults have been in the wild for almost two years at the time of this writing, so I feel quite
-// confident in them.
-func (ct *ConsoleThrottler) Handle() {
-
-}
-
-// Returns the throttler instance for the server or creates a new one.
-func (s *Server) Throttler() *ConsoleThrottler {
-	s.throttleLock.RLock()
-
-	if s.throttler == nil {
-		// Release the read lock so that we can acquire a normal lock on the process and
-		// make modifications to the throttler.
-		s.throttleLock.RUnlock()
-
-		s.throttleLock.Lock()
-		s.throttler = &ConsoleThrottler{
-			ConsoleThrottles: config.Get().Throttles,
-		}
-		s.throttleLock.Unlock()
-
-		return s.throttler
-	} else {
-		defer s.throttleLock.RUnlock()
-		return s.throttler
-	}
-}
-
-
-// Sends output to the server console formatted to appear correctly as being sent
-// from Wings.
-func (s *Server) PublishConsoleOutputFromDaemon(data string) {
-	s.Events().Publish(
-		ConsoleOutputEvent,
-		colorstring.Color(fmt.Sprintf("[yellow][bold][Pterodactyl Daemon]:[default] %s", data)),
-	)
+	return len(b), nil
 }

server/crash.go

@@ -4,33 +4,19 @@ import (
 	"fmt"
 	"github.com/pkg/errors"
 	"github.com/pterodactyl/wings/config"
-	"github.com/pterodactyl/wings/environment"
-	"sync"
+	"go.uber.org/zap"
 	"time"
 )
 
-type CrashHandler struct {
-	mu sync.RWMutex
+type CrashDetection struct {
+	// If set to false, the system will not listen for crash detection events that
+	// can indicate that the server stopped unexpectedly.
+	Enabled bool `default:"true" json:"enabled" yaml:"enabled"`
 
 	// Tracks the time of the last server crash event.
 	lastCrash time.Time
 }
 
-// Returns the time of the last crash for this server instance.
-func (cd *CrashHandler) LastCrashTime() time.Time {
-	cd.mu.RLock()
-	defer cd.mu.RUnlock()
-
-	return cd.lastCrash
-}
-
-// Sets the last crash time for a server.
-func (cd *CrashHandler) SetLastCrash(t time.Time) {
-	cd.mu.Lock()
-	cd.lastCrash = t
-	cd.mu.Unlock()
-}
-
 // Looks at the environment exit state to determine if the process exited cleanly or
 // if it was the result of an event that we should try to recover from.
 //
@@ -41,15 +27,17 @@ func (cd *CrashHandler) SetLastCrash(t time.Time) {
 //
 // If the server is determined to have crashed, the process will be restarted and the
 // counter for the server will be incremented.
+//
+// @todo output event to server console
 func (s *Server) handleServerCrash() error {
 	// No point in doing anything here if the server isn't currently offline, there
 	// is no reason to do a crash detection event. If the server crash detection is
 	// disabled we want to skip anything after this as well.
-	if s.GetState() != environment.ProcessOfflineState || !s.Config().CrashDetectionEnabled {
-		if !s.Config().CrashDetectionEnabled {
-			s.Log().Debug("server triggered crash detection but handler is disabled for server process")
+	if s.State != ProcessOfflineState || !s.CrashDetection.Enabled {
+		if !s.CrashDetection.Enabled {
+			zap.S().Debugw("server triggered crash detection but handler is disabled for server process", zap.String("server", s.Uuid))
 
-			s.PublishConsoleOutputFromDaemon("Server detected as crashed; crash detection is disabled for this instance.")
+			s.SendConsoleOutputFromDaemon("Server detected as crashed; crash detection is disabled for this instance.")
 		}
 
 		return nil
@@ -63,25 +51,25 @@ func (s *Server) handleServerCrash() error {
 	// If the system is not configured to detect a clean exit code as a crash, and the
 	// crash is not the result of the program running out of memory, do nothing.
 	if exitCode == 0 && !oomKilled && !config.Get().System.DetectCleanExitAsCrash {
-		s.Log().Debug("server exited with successful exit code; system is configured to not detect this as a crash")
+		zap.S().Debugw("server exited with successful code; system configured to not detect as crash", zap.String("server", s.Uuid))
 
 		return nil
 	}
 
-	s.PublishConsoleOutputFromDaemon("---------- Detected server process in a crashed state! ----------")
-	s.PublishConsoleOutputFromDaemon(fmt.Sprintf("Exit code: %d", exitCode))
-	s.PublishConsoleOutputFromDaemon(fmt.Sprintf("Out of memory: %t", oomKilled))
+	s.SendConsoleOutputFromDaemon("---------- Detected server process in a crashed state! ----------")
+	s.SendConsoleOutputFromDaemon(fmt.Sprintf("Exit code: %d", exitCode))
+	s.SendConsoleOutputFromDaemon(fmt.Sprintf("Out of memory: %t", oomKilled))
 
-	c := s.crasher.LastCrashTime()
+	c := s.CrashDetection.lastCrash
 	// If the last crash time was within the last 60 seconds we do not want to perform
 	// an automatic reboot of the process. Return an error that can be handled.
 	if !c.IsZero() && c.Add(time.Second * 60).After(time.Now()) {
-		s.PublishConsoleOutputFromDaemon("Aborting automatic reboot: last crash occurred less than 60 seconds ago.")
+		s.SendConsoleOutputFromDaemon("Aborting automatic reboot: last crash occurred less than 60 seconds ago.")
 
 		return &crashTooFrequent{}
 	}
 
-	s.crasher.SetLastCrash(time.Now())
+	s.CrashDetection.lastCrash = time.Now()
 
-	return s.HandlePowerAction(PowerActionStart)
+	return s.Environment.Start()
 }

server/environment.go

@@ -1,39 +1,15 @@
-package environment
+package server
 
 import (
-	"github.com/pterodactyl/wings/events"
 	"os"
 )
 
-const (
-	ConsoleOutputEvent = "console output"
-	StateChangeEvent   = "state change"
-	ResourceEvent      = "resources"
-)
-
-const (
-	ProcessOfflineState  = "offline"
-	ProcessStartingState = "starting"
-	ProcessRunningState  = "running"
-	ProcessStoppingState = "stopping"
-)
-
 // Defines the basic interface that all environments need to implement so that
 // a server can be properly controlled.
-type ProcessEnvironment interface {
+type Environment interface {
 	// Returns the name of the environment.
 	Type() string
 
-	// Returns an event emitter instance that can be hooked into to listen for different
-	// events that are fired by the environment. This should not allow someone to publish
-	// events, only subscribe to them.
-	Events() *events.EventBus
-
-	// Determines if the server instance exists. For example, in a docker environment
-	// this should confirm that the container is created and in a bootable state. In
-	// a basic CLI environment this can probably just return true right away.
-	Exists() (bool, error)
-
 	// Determines if the environment is currently active and running a server process
 	// for this specific server instance.
 	IsRunning() (bool, error)
@@ -55,10 +31,10 @@ type ProcessEnvironment interface {
 	// not be returned.
 	Stop() error
 
-	// Waits for a server instance to stop gracefully. If the server is still detected
-	// as running after seconds, an error will be returned, or the server will be terminated
-	// depending on the value of the second argument.
-	WaitForStop(seconds uint, terminate bool) error
+	// Determines if the server instance exists. For example, in a docker environment
+	// this should confirm that the container is created and in a bootable state. In
+	// a basic CLI environment this can probably just return true right away.
+	Exists() (bool, error)
 
 	// Terminates a running server instance using the provided signal. If the server
 	// is not running no error should be returned.
@@ -82,10 +58,22 @@ type ProcessEnvironment interface {
 	// send data into the environment's stdin.
 	Attach() error
 
+	// Follows the output from the server console and will begin piping the output to
+	// the server's emitter.
+	FollowConsoleOutput() error
+
 	// Sends the provided command to the running server instance.
 	SendCommand(string) error
 
 	// Reads the log file for the process from the end backwards until the provided
 	// number of bytes is met.
 	Readlog(int64) ([]string, error)
+
+	// Polls the given environment for resource usage of the server when the process
+	// is running.
+	EnableResourcePolling() error
+
+	// Disables the polling operation for resource usage and sets the required values
+	// to 0 in the server resource usage struct.
+	DisableResourcePolling() error
 }

server/environment_docker.go

@@ -0,0 +1,793 @@
+package server
+
+import (
+	"bufio"
+	"bytes"
+	"context"
+	"encoding/json"
+	"fmt"
+	"github.com/docker/docker/api/types"
+	"github.com/docker/docker/api/types/container"
+	"github.com/docker/docker/api/types/mount"
+	"github.com/docker/docker/client"
+	"github.com/docker/docker/daemon/logger/jsonfilelog"
+	"github.com/docker/go-connections/nat"
+	"github.com/pkg/errors"
+	"github.com/pterodactyl/wings/api"
+	"go.uber.org/zap"
+	"io"
+	"os"
+	"strconv"
+	"strings"
+	"time"
+)
+
+// Defines the base environment for Docker instances running through Wings.
+type DockerEnvironment struct {
+	Server *Server
+
+	// The user ID that containers should be running as.
+	User int
+
+	// Defines the configuration for the Docker instance that will allow us to connect
+	// and create and modify containers.
+	TimezonePath string
+
+	// The Docker client being used for this instance.
+	Client *client.Client
+
+	// Tracks if we are currently attached to the server container. This allows us to attach
+	// once and then just use that attachment to stream logs out of the server and also stream
+	// commands back into it without constantly attaching and detaching.
+	attached bool
+
+	// Controls the hijacked response stream which exists only when we're attached to
+	// the running container instance.
+	stream types.HijackedResponse
+
+	// Holds the stats stream used by the polling commands so that we can easily close
+	// it out.
+	stats io.ReadCloser
+}
+
+// Creates a new base Docker environment. A server must still be attached to it.
+func NewDockerEnvironment(opts ...func(*DockerEnvironment)) (*DockerEnvironment, error) {
+	cli, err := client.NewClientWithOpts(client.FromEnv)
+	if err != nil {
+		return nil, err
+	}
+
+	env := &DockerEnvironment{
+		User:   1000,
+		Client: cli,
+	}
+
+	for _, opt := range opts {
+		opt(env)
+	}
+
+	return env, nil
+}
+
+// Ensure that the Docker environment is always implementing all of the methods
+// from the base environment interface.
+var _ Environment = (*DockerEnvironment)(nil)
+
+// Returns the name of the environment.
+func (d *DockerEnvironment) Type() string {
+	return "docker"
+}
+
+// Determines if the container exists in this environment.
+func (d *DockerEnvironment) Exists() (bool, error) {
+	_, err := d.Client.ContainerInspect(context.Background(), d.Server.Uuid)
+
+	if err != nil {
+		// If this error is because the container instance wasn't found via Docker we
+		// can safely ignore the error and just return false.
+		if client.IsErrNotFound(err) {
+			return false, nil
+		}
+
+		return false, err
+	}
+
+	return true, nil
+}
+
+// Determines if the server's docker container is currently running. If there is no container
+// present, an error will be raised (since this shouldn't be a case that ever happens under
+// correctly developed circumstances).
+//
+// You can confirm if the instance wasn't found by using client.IsErrNotFound from the Docker
+// API.
+//
+// @see docker/client/errors.go
+func (d *DockerEnvironment) IsRunning() (bool, error) {
+	ctx := context.Background()
+
+	c, err := d.Client.ContainerInspect(ctx, d.Server.Uuid)
+	if err != nil {
+		return false, err
+	}
+
+	return c.State.Running, nil
+}
+
+// Performs an in-place update of the Docker container's resource limits without actually
+// making any changes to the operational state of the container. This allows memory, cpu,
+// and IO limitations to be adjusted on the fly for individual instances.
+func (d *DockerEnvironment) InSituUpdate() error {
+	if _, err := d.Client.ContainerInspect(context.Background(), d.Server.Uuid); err != nil {
+		// If the container doesn't exist for some reason there really isn't anything
+		// we can do to fix that in this process (it doesn't make sense at least). In those
+		// cases just return without doing anything since we still want to save the configuration
+		// to the disk.
+		//
+		// We'll let a boot process make modifications to the container if needed at this point.
+		if client.IsErrNotFound(err) {
+			return nil
+		}
+
+		return errors.WithStack(err)
+	}
+
+	u := container.UpdateConfig{
+		Resources: d.getResourcesForServer(),
+	}
+
+	if _, err := d.Client.ContainerUpdate(context.Background(), d.Server.Uuid, u); err != nil {
+		return errors.WithStack(err)
+	}
+
+	return nil
+}
+
+// Run before the container starts and get the process configuration from the Panel.
+// This is important since we use this to check configuration files as well as ensure
+// we always have the latest version of an egg available for server processes.
+//
+// This process will also confirm that the server environment exists and is in a bootable
+// state. This ensures that unexpected container deletion while Wings is running does
+// not result in the server becoming unbootable.
+func (d *DockerEnvironment) OnBeforeStart() error {
+	zap.S().Infow("syncing server configuration with Panel", zap.String("server", d.Server.Uuid))
+	if err := d.Server.Sync(); err != nil {
+		return err
+	}
+
+	// Always destroy and re-create the server container to ensure that synced data from
+	// the Panel is used.
+	if err := d.Client.ContainerRemove(context.Background(), d.Server.Uuid, types.ContainerRemoveOptions{RemoveVolumes: true}); err != nil {
+		if !client.IsErrNotFound(err) {
+			return err
+		}
+	}
+
+	// The Create() function will check if the container exists in the first place, and if
+	// so just silently return without an error. Otherwise, it will try to create the necessary
+	// container and data storage directory.
+	//
+	// This won't actually run an installation process however, it is just here to ensure the
+	// environment gets created properly if it is missing and the server is started. We're making
+	// an assumption that all of the files will still exist at this point.
+	if err := d.Create(); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// Starts the server environment and begins piping output to the event listeners for the
+// console. If a container does not exist, or needs to be rebuilt that will happen in the
+// call to OnBeforeStart().
+func (d *DockerEnvironment) Start() error {
+	sawError := false
+	// If sawError is set to true there was an error somewhere in the pipeline that
+	// got passed up, but we also want to ensure we set the server to be offline at
+	// that point.
+	defer func() {
+		if sawError {
+			d.Server.SetState(ProcessOfflineState)
+		}
+	}()
+
+	// If the server is suspended the user shouldn't be able to boot it, in those cases
+	// return a suspension error and let the calling area handle the issue.
+	//
+	// Theoretically you'd have the Panel handle all of this logic, but we cannot do that
+	// because we allow the websocket to control the server power state as well, so we'll
+	// need to handle that action in here.
+	if d.Server.Suspended {
+		return &suspendedError{}
+	}
+
+	c, err := d.Client.ContainerInspect(context.Background(), d.Server.Uuid)
+	if err != nil && !client.IsErrNotFound(err) {
+		return errors.WithStack(err)
+	}
+
+	// No reason to try starting a container that is already running.
+	if c.State.Running {
+		d.Server.SetState(ProcessRunningState)
+		if !d.attached {
+			return d.Attach()
+		}
+
+		return nil
+	}
+
+	d.Server.SetState(ProcessStartingState)
+	// Set this to true for now, we will set it to false once we reach the
+	// end of this chain.
+	sawError = true
+
+	// Run the before start function and wait for it to finish. This will validate that the container
+	// exists on the system, and rebuild the container if that is required for server booting to
+	// occur.
+	if err := d.OnBeforeStart(); err != nil {
+		return errors.WithStack(err)
+	}
+
+	// Truncate the log file so we don't end up outputting a bunch of useless log information
+	// to the websocket and whatnot. Check first that the path and file exist before trying
+	// to truncate them.
+	if _, err := os.Stat(c.LogPath); err == nil {
+		if err := os.Truncate(c.LogPath, 0); err != nil {
+			return errors.WithStack(err)
+		}
+	}
+
+	// Update the configuration files defined for the server before beginning the boot process.
+	// This process executes a bunch of parallel updates, so we just block until that process
+	// is completed. Any errors as a result of this will just be bubbled out in the logger,
+	// we don't need to actively do anything about it at this point, worst comes to worst the
+	// server starts in a weird state and the user can manually adjust.
+	d.Server.UpdateConfigurationFiles()
+
+	// Reset the permissions on files for the server before actually trying
+	// to start it.
+	if err := d.Server.Filesystem.Chown("/"); err != nil {
+		return errors.WithStack(err)
+	}
+
+	opts := types.ContainerStartOptions{}
+	if err := d.Client.ContainerStart(context.Background(), d.Server.Uuid, opts); err != nil {
+		return errors.WithStack(err)
+	}
+
+	// No errors, good to continue through.
+	sawError = false
+
+	return d.Attach()
+}
+
+// Stops the container that the server is running in. This will allow up to 10
+// seconds to pass before a failure occurs.
+func (d *DockerEnvironment) Stop() error {
+	stop := d.Server.processConfiguration.Stop
+	if stop.Type == api.ProcessStopSignal {
+		return d.Terminate(os.Kill)
+	}
+
+	d.Server.SetState(ProcessStoppingState)
+	if stop.Type == api.ProcessStopCommand {
+		return d.SendCommand(stop.Value)
+	}
+
+	t := time.Second * 10
+
+	return d.Client.ContainerStop(context.Background(), d.Server.Uuid, &t)
+}
+
+// Forcefully terminates the container using the signal passed through.
+func (d *DockerEnvironment) Terminate(signal os.Signal) error {
+	ctx := context.Background()
+
+	c, err := d.Client.ContainerInspect(ctx, d.Server.Uuid)
+	if err != nil {
+		return errors.WithStack(err)
+	}
+
+	if !c.State.Running {
+		return nil
+	}
+
+	d.Server.SetState(ProcessStoppingState)
+
+	return d.Client.ContainerKill(
+		ctx, d.Server.Uuid, strings.TrimSuffix(strings.TrimPrefix(signal.String(), "signal "), "ed"),
+	)
+}
+
+// Remove the Docker container from the machine. If the container is currently running
+// it will be forcibly stopped by Docker.
+func (d *DockerEnvironment) Destroy() error {
+	ctx := context.Background()
+
+	return d.Client.ContainerRemove(ctx, d.Server.Uuid, types.ContainerRemoveOptions{
+		RemoveVolumes: true,
+		RemoveLinks:   false,
+		Force:         true,
+	})
+}
+
+// Determine the container exit state and return the exit code and wether or not
+// the container was killed by the OOM killer.
+func (d *DockerEnvironment) ExitState() (uint32, bool, error) {
+	c, err := d.Client.ContainerInspect(context.Background(), d.Server.Uuid)
+	if err != nil {
+		return 0, false, errors.WithStack(err)
+	}
+
+	return uint32(c.State.ExitCode), c.State.OOMKilled, nil
+}
+
+// Attaches to the docker container itself and ensures that we can pipe data in and out
+// of the process stream. This should not be used for reading console data as you *will*
+// miss important output at the beginning because of the time delay with attaching to the
+// output.
+func (d *DockerEnvironment) Attach() error {
+	if d.attached {
+		return nil
+	}
+
+	if err := d.FollowConsoleOutput(); err != nil {
+		return errors.WithStack(err)
+	}
+
+	ctx := context.Background()
+
+	var err error
+	d.stream, err = d.Client.ContainerAttach(ctx, d.Server.Uuid, types.ContainerAttachOptions{
+		Stdin:  true,
+		Stdout: true,
+		Stderr: true,
+		Stream: true,
+	})
+
+	if err != nil {
+		return errors.WithStack(err)
+	}
+
+	console := Console{
+		Server: d.Server,
+	}
+
+	d.EnableResourcePolling()
+	d.attached = true
+
+	go func() {
+		defer d.stream.Close()
+		defer func() {
+			d.Server.SetState(ProcessOfflineState)
+			d.attached = false
+		}()
+
+		io.Copy(console, d.stream.Reader)
+	}()
+
+	return nil
+}
+
+// Attaches to the log for the container. This avoids us missing cruicial output that
+// happens in the split seconds before the code moves from 'Starting' to 'Attaching'
+// on the process.
+func (d *DockerEnvironment) FollowConsoleOutput() error {
+	if exists, err := d.Exists(); !exists {
+		if err != nil {
+			return errors.WithStack(err)
+		}
+
+		return errors.New(fmt.Sprintf("no such container: %s", d.Server.Uuid))
+	}
+
+	ctx := context.Background()
+	opts := types.ContainerLogsOptions{
+		ShowStderr: true,
+		ShowStdout: true,
+		Follow:     true,
+		Since:      time.Now().Format(time.RFC3339),
+	}
+
+	reader, err := d.Client.ContainerLogs(ctx, d.Server.Uuid, opts)
+
+	go func(r io.ReadCloser) {
+		defer r.Close()
+
+		s := bufio.NewScanner(r)
+		for s.Scan() {
+			d.Server.Emit(ConsoleOutputEvent, s.Text())
+		}
+
+		if err := s.Err(); err != nil {
+			zap.S().Warnw("error processing scanner line in console output", zap.String("server", d.Server.Uuid), zap.Error(err))
+		}
+	}(reader)
+
+	return errors.WithStack(err)
+}
+
+// Enables resource polling on the docker instance. Except we aren't actually polling Docker for this
+// information, instead just sit there with an async process that lets Docker stream all of this data
+// to us automatically.
+func (d *DockerEnvironment) EnableResourcePolling() error {
+	if d.Server.State == ProcessOfflineState {
+		return errors.New("cannot enable resource polling on a server that is not running")
+	}
+
+	ctx := context.Background()
+
+	stats, err := d.Client.ContainerStats(ctx, d.Server.Uuid, true)
+	if err != nil {
+		return errors.WithStack(err)
+	}
+	d.stats = stats.Body
+
+	dec := json.NewDecoder(d.stats)
+	go func(s *Server) {
+		for {
+			var v *types.StatsJSON
+
+			if err := dec.Decode(&v); err != nil {
+				zap.S().Warnw("encountered error processing server stats; stopping collection", zap.Error(err))
+				d.DisableResourcePolling()
+				return
+			}
+
+			// Disable collection if the server is in an offline state and this process is
+			// still running.
+			if s.State == ProcessOfflineState {
+				d.DisableResourcePolling()
+				return
+			}
+
+			s.Resources.CpuAbsolute = s.Resources.CalculateAbsoluteCpu(&v.PreCPUStats, &v.CPUStats)
+			s.Resources.Memory = v.MemoryStats.Usage
+			s.Resources.MemoryLimit = v.MemoryStats.Limit
+
+			// Why you ask? This already has the logic for caching disk space in use and then
+			// also handles pushing that value to the resources object automatically.
+			s.Filesystem.HasSpaceAvailable()
+
+			for _, nw := range v.Networks {
+				s.Resources.Network.RxBytes += nw.RxBytes
+				s.Resources.Network.TxBytes += nw.TxBytes
+			}
+
+			b, _ := json.Marshal(s.Resources)
+			s.Emit(StatsEvent, string(b))
+		}
+	}(d.Server)
+
+	return nil
+}
+
+// Closes the stats stream for a server process.
+func (d *DockerEnvironment) DisableResourcePolling() error {
+	if d.stats == nil {
+		return nil
+	}
+
+	err := d.stats.Close()
+
+	d.Server.Resources.CpuAbsolute = 0
+	d.Server.Resources.Memory = 0
+	d.Server.Resources.Network.TxBytes = 0
+	d.Server.Resources.Network.RxBytes = 0
+
+	return errors.WithStack(err)
+}
+
+// Pulls the image from Docker.
+//
+// @todo handle authorization & local images
+func (d *DockerEnvironment) ensureImageExists(c *client.Client) error {
+	out, err := c.ImagePull(context.Background(), d.Server.Container.Image, types.ImagePullOptions{All: false})
+	if err != nil {
+		return err
+	}
+	defer out.Close()
+
+	zap.S().Debugw("pulling docker image... this could take a bit of time", zap.String("image", d.Server.Container.Image))
+
+	// I'm not sure what the best approach here is, but this will block execution until the image
+	// is done being pulled, which is what we need.
+	scanner := bufio.NewScanner(out)
+	for scanner.Scan() {
+		continue
+	}
+
+	if err := scanner.Err(); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// Creates a new container for the server using all of the data that is currently
+// available for it. If the container already exists it will be returned.
+//
+// @todo pull the image being requested if it doesn't exist currently.
+func (d *DockerEnvironment) Create() error {
+	ctx := context.Background()
+	cli, err := client.NewClientWithOpts(client.FromEnv)
+	if err != nil {
+		return errors.WithStack(err)
+	}
+
+	// Ensure the data directory exists before getting too far through this process.
+	if err := d.Server.Filesystem.EnsureDataDirectory(); err != nil {
+		return errors.WithStack(err)
+	}
+
+	// If the container already exists don't hit the user with an error, just return
+	// the current information about it which is what we would do when creating the
+	// container anyways.
+	if _, err := cli.ContainerInspect(ctx, d.Server.Uuid); err == nil {
+		return nil
+	} else if !client.IsErrNotFound(err) {
+		return errors.WithStack(err)
+	}
+
+	// Try to pull the requested image before creating the container.
+	if err := d.ensureImageExists(cli); err != nil {
+		return errors.WithStack(err)
+	}
+
+	conf := &container.Config{
+		Hostname:     "container",
+		User:         strconv.Itoa(d.User),
+		AttachStdin:  true,
+		AttachStdout: true,
+		AttachStderr: true,
+		OpenStdin:    true,
+		Tty:          true,
+
+		ExposedPorts: d.exposedPorts(),
+
+		Image: d.Server.Container.Image,
+		Env:   d.environmentVariables(),
+
+		Labels: map[string]string{
+			"Service": "Pterodactyl",
+		},
+	}
+
+	hostConf := &container.HostConfig{
+		PortBindings: d.portBindings(),
+
+		// Configure the mounts for this container. First mount the server data directory
+		// into the container as a r/w bind. Additionally mount the host timezone data into
+		// the container as a readonly bind so that software running in the container uses
+		// the same time as the host system.
+		Mounts: []mount.Mount{
+			{
+				Target:   "/home/container",
+				Source:   d.Server.Filesystem.Path(),
+				Type:     mount.TypeBind,
+				ReadOnly: false,
+			},
+			{
+				Target:   d.TimezonePath,
+				Source:   d.TimezonePath,
+				Type:     mount.TypeBind,
+				ReadOnly: true,
+			},
+		},
+
+		// Configure the /tmp folder mapping in containers. This is necessary for some
+		// games that need to make use of it for downloads and other installation processes.
+		Tmpfs: map[string]string{
+			"/tmp": "rw,exec,nosuid,size=50M",
+		},
+
+		// Define resource limits for the container based on the data passed through
+		// from the Panel.
+		Resources: d.getResourcesForServer(),
+
+		// @todo make this configurable again
+		DNS: []string{"1.1.1.1", "8.8.8.8"},
+
+		// Configure logging for the container to make it easier on the Daemon to grab
+		// the server output. Ensure that we don't use too much space on the host machine
+		// since we only need it for the last few hundred lines of output and don't care
+		// about anything else in it.
+		LogConfig: container.LogConfig{
+			Type: jsonfilelog.Name,
+			Config: map[string]string{
+				"max-size": "5m",
+				"max-file": "1",
+			},
+		},
+
+		SecurityOpt:    []string{"no-new-privileges"},
+		ReadonlyRootfs: true,
+		CapDrop: []string{
+			"setpcap", "mknod", "audit_write", "net_raw", "dac_override",
+			"fowner", "fsetid", "net_bind_service", "sys_chroot", "setfcap",
+		},
+		NetworkMode: "pterodactyl_nw",
+	}
+
+	if _, err := cli.ContainerCreate(ctx, conf, hostConf, nil, d.Server.Uuid); err != nil {
+		return errors.WithStack(err)
+	}
+
+	return nil
+}
+
+// Sends the specified command to the stdin of the running container instance. There is no
+// confirmation that this data is sent successfully, only that it gets pushed into the stdin.
+func (d *DockerEnvironment) SendCommand(c string) error {
+	if !d.attached {
+		return errors.New("attempting to send command to non-attached instance")
+	}
+
+	_, err := d.stream.Conn.Write([]byte(c + "\n"))
+
+	return errors.WithStack(err)
+}
+
+// Reads the log file for the server. This does not care if the server is running or not, it will
+// simply try to read the last X bytes of the file and return them.
+func (d *DockerEnvironment) Readlog(len int64) ([]string, error) {
+	ctx := context.Background()
+
+	j, err := d.Client.ContainerInspect(ctx, d.Server.Uuid)
+	if err != nil {
+		return nil, err
+	}
+
+	if j.LogPath == "" {
+		return nil, errors.New("empty log path defined for server")
+	}
+
+	f, err := os.Open(j.LogPath)
+	if err != nil {
+		return nil, err
+	}
+	defer f.Close()
+
+	// Check if the length of the file is smaller than the amount of data that was requested
+	// for reading. If so, adjust the length to be the total length of the file. If this is not
+	// done an error is thrown since we're reading backwards, and not forwards.
+	if stat, err := os.Stat(j.LogPath); err != nil {
+		return nil, err
+	} else if stat.Size() < len {
+		len = stat.Size()
+	}
+
+	// Seed to the end of the file and then move backwards until the length is met to avoid
+	// reading the entirety of the file into memory.
+	if _, err := f.Seek(-len, io.SeekEnd); err != nil {
+		return nil, err
+	}
+
+	b := make([]byte, len)
+
+	if _, err := f.Read(b); err != nil && err != io.EOF {
+		return nil, err
+	}
+
+	return d.parseLogToStrings(b)
+}
+
+type dockerLogLine struct {
+	Log string `json:"log"`
+}
+
+// Docker stores the logs for server output in a JSON format. This function will iterate over the JSON
+// that was read from the log file and parse it into a more human readable format.
+func (d *DockerEnvironment) parseLogToStrings(b []byte) ([]string, error) {
+	var hasError = false
+	var out []string
+
+	scanner := bufio.NewScanner(bytes.NewReader(b))
+	for scanner.Scan() {
+		var l dockerLogLine
+		// Unmarshal the contents and allow up to a single error before bailing out of the process. We
+		// do this because if you're arbitrarily reading a length of the file you'll likely end up
+		// with the first line in the output being improperly formatted JSON. In those cases we want to
+		// just skip over it. However if we see another error we're going to bail out because that is an
+		// abnormal situation.
+		if err := json.Unmarshal([]byte(scanner.Text()), &l); err != nil {
+			if hasError {
+				return nil, err
+			}
+
+			hasError = true
+			continue
+		}
+
+		out = append(out, l.Log)
+	}
+
+	return out, nil
+}
+
+// Returns the environment variables for a server in KEY="VALUE" form.
+func (d *DockerEnvironment) environmentVariables() []string {
+	var out = []string{
+		fmt.Sprintf("STARTUP=%s", d.Server.Invocation),
+		fmt.Sprintf("SERVER_MEMORY=%d", d.Server.Build.MemoryLimit),
+		fmt.Sprintf("SERVER_IP=%s", d.Server.Allocations.DefaultMapping.Ip),
+		fmt.Sprintf("SERVER_PORT=%d", d.Server.Allocations.DefaultMapping.Port),
+	}
+
+eloop:
+	for k, v := range d.Server.EnvVars {
+		for _, e := range out {
+			if strings.HasPrefix(e, strings.ToUpper(k)) {
+				continue eloop
+			}
+		}
+
+		out = append(out, fmt.Sprintf("%s=\"%s\"", strings.ToUpper(k), v))
+	}
+
+	return out
+}
+
+func (d *DockerEnvironment) volumes() map[string]struct{} {
+	return nil
+}
+
+// Converts the server allocation mappings into a format that can be understood
+// by Docker.
+func (d *DockerEnvironment) portBindings() nat.PortMap {
+	var out = nat.PortMap{}
+
+	for ip, ports := range d.Server.Allocations.Mappings {
+		for _, port := range ports {
+			// Skip over invalid ports.
+			if port < 0 || port > 65535 {
+				continue
+			}
+
+			binding := []nat.PortBinding{
+				{
+					HostIP:   ip,
+					HostPort: strconv.Itoa(port),
+				},
+			}
+
+			out[nat.Port(fmt.Sprintf("%d/tcp", port))] = binding
+			out[nat.Port(fmt.Sprintf("%d/udp", port))] = binding
+		}
+	}
+
+	return out
+}
+
+// Converts the server allocation mappings into a PortSet that can be understood
+// by Docker. This formatting is slightly different than portBindings as it should
+// return an empty struct rather than a binding.
+//
+// To accomplish this, we'll just get the values from portBindings and then set them
+// to empty structs. Because why not.
+func (d *DockerEnvironment) exposedPorts() nat.PortSet {
+	var out = nat.PortSet{}
+
+	for port := range d.portBindings() {
+		out[port] = struct{}{}
+	}
+
+	return out
+}
+
+// Formats the resources available to a server instance in such as way that Docker will
+// generate a matching environment in the container.
+func (d *DockerEnvironment) getResourcesForServer() container.Resources {
+	return container.Resources{
+		// @todo memory limit should be slightly higher than the reservation
+		Memory:            d.Server.Build.MemoryLimit * 1000000,
+		MemoryReservation: d.Server.Build.MemoryLimit * 1000000,
+		MemorySwap:        d.Server.Build.ConvertedSwap(),
+		CPUQuota:          d.Server.Build.ConvertedCpuLimit(),
+		CPUPeriod:         100000,
+		CPUShares:         1024,
+		BlkioWeight:       d.Server.Build.IoWeight,
+		OomKillDisable:    &d.Server.Container.OomDisabled,
+	}
+}

server/events.go

@@ -1,30 +1,63 @@
 package server
 
 import (
-	"github.com/pterodactyl/wings/events"
+	"fmt"
+	"github.com/mitchellh/colorstring"
 )
 
+type EventListeners map[string][]EventListenerFunction
+
+type EventListenerFunction *func(string)
+
 // Defines all of the possible output events for a server.
 // noinspection GoNameStartsWithPackageName
 const (
-	DaemonMessageEvent    = "daemon message"
-	InstallOutputEvent    = "install output"
-	InstallStartedEvent   = "install started"
-	InstallCompletedEvent = "install completed"
 	ConsoleOutputEvent = "console output"
 	StatusEvent        = "status"
 	StatsEvent         = "stats"
-	BackupCompletedEvent  = "backup completed"
 )
 
-// Returns the server's emitter instance.
-func (s *Server) Events() *events.EventBus {
-	s.emitterLock.Lock()
-	defer s.emitterLock.Unlock()
-
-	if s.emitter == nil {
-		s.emitter = events.New()
+// Adds an event listener for the server instance.
+func (s *Server) AddListener(event string, f EventListenerFunction) {
+	if s.listeners == nil {
+		s.listeners = make(map[string][]EventListenerFunction)
 	}
 
-	return s.emitter
+	if _, ok := s.listeners[event]; ok {
+		s.listeners[event] = append(s.listeners[event], f)
+	} else {
+		s.listeners[event] = []EventListenerFunction{f}
+	}
+}
+
+// Removes the event listener for the server instance.
+func (s *Server) RemoveListener(event string, f EventListenerFunction) {
+	if _, ok := s.listeners[event]; ok {
+		for i := range s.listeners[event] {
+			if s.listeners[event][i] == f {
+				s.listeners[event] = append(s.listeners[event][:i], s.listeners[event][i+1:]...)
+				break
+			}
+		}
+	}
+}
+
+// Emits an event to all of the active listeners for a server.
+func (s *Server) Emit(event string, data string) {
+	if _, ok := s.listeners[event]; ok {
+		for _, handler := range s.listeners[event] {
+			go func(f EventListenerFunction, d string) {
+				(*f)(d)
+			}(handler, data)
+		}
+	}
+}
+
+// Sends output to the server console formatted to appear correctly as being sent
+// from Wings.
+func (s *Server) SendConsoleOutputFromDaemon(data string) {
+	s.Emit(
+		ConsoleOutputEvent,
+		colorstring.Color(fmt.Sprintf("[yellow][bold][Pterodactyl Daemon]:[default] %s", data)),
+	)
 }

server/filesystem.go

@@ -1,17 +1,14 @@
 package server
 
 import (
+	"bufio"
 	"bytes"
-	"context"
 	"encoding/json"
 	"fmt"
 	"github.com/gabriel-vasile/mimetype"
-	"github.com/karrick/godirwalk"
 	"github.com/pkg/errors"
 	"github.com/pterodactyl/wings/config"
-	"github.com/pterodactyl/wings/server/backup"
-	ignore "github.com/sabhiram/go-gitignore"
-	"golang.org/x/sync/errgroup"
+	"go.uber.org/zap"
 	"io"
 	"io/ioutil"
 	"os"
@@ -21,37 +18,22 @@ import (
 	"strconv"
 	"strings"
 	"sync"
-	"sync/atomic"
-	"syscall"
 	"time"
 )
 
 // Error returned when there is a bad path provided to one of the FS calls.
-type PathResolutionError struct{}
-
-// Returns the error response in a string form that can be more easily consumed.
-func (pre PathResolutionError) Error() string {
-	return "invalid path resolution"
-}
-
-func IsPathResolutionError(err error) bool {
-	_, ok := err.(PathResolutionError)
-
-	return ok
-}
+var InvalidPathResolution = errors.New("invalid path resolution")
 
 type Filesystem struct {
-	mu sync.RWMutex
-
-	lastLookupTime time.Time
-	diskUsage      int64
-
+	// The server object associated with this Filesystem.
 	Server *Server
+
+	Configuration *config.SystemConfiguration
 }
 
 // Returns the root path that contains all of a server's data.
 func (fs *Filesystem) Path() string {
-	return filepath.Join(config.Get().System.Data, fs.Server.Id())
+	return filepath.Join(fs.Configuration.Data, fs.Server.Uuid)
 }
 
 // Normalizes a directory being passed in to ensure the user is not able to escape
@@ -63,8 +45,12 @@ func (fs *Filesystem) Path() string {
 func (fs *Filesystem) SafePath(p string) (string, error) {
 	var nonExistentPathResolution string
 
-	// Start with a cleaned up path before checking the more complex bits.
-	r := fs.unsafeFilePath(p)
+	// Calling filpath.Clean on the joined directory will resolve it to the absolute path,
+	// removing any ../ type of resolution arguments, and leaving us with a direct path link.
+	//
+	// This will also trim the existing root path off the beginning of the path passed to
+	// the function since that can get a bit messy.
+	r := filepath.Clean(filepath.Join(fs.Path(), strings.TrimPrefix(p, fs.Path())))
 
 	// At the same time, evaluate the symlink status and determine where this file or folder
 	// is truly pointing to.
@@ -80,9 +66,9 @@ func (fs *Filesystem) SafePath(p string) (string, error) {
 		// Range over all of the path parts and form directory pathings from the end
 		// moving up until we have a valid resolution or we run out of paths to try.
 		for k := range parts {
-			try = strings.Join(parts[:(len(parts)-k)], "/")
+			try = strings.Join(parts[:(len(parts) - k)], "/")
 
-			if !fs.unsafeIsInDataDirectory(try) {
+			if !strings.HasPrefix(try, fs.Path()) {
 				break
 			}
 
@@ -97,11 +83,11 @@ func (fs *Filesystem) SafePath(p string) (string, error) {
 	// If the new path doesn't start with their root directory there is clearly an escape
 	// attempt going on, and we should NOT resolve this path for them.
 	if nonExistentPathResolution != "" {
-		if !fs.unsafeIsInDataDirectory(nonExistentPathResolution) {
-			return "", PathResolutionError{}
+		if !strings.HasPrefix(nonExistentPathResolution, fs.Path()) {
+			return "", InvalidPathResolution
 		}
 
-		// If the nonExistentPathResolution variable is not empty then the initial path requested
+		// If the nonExistentPathResoltion variable is not empty then the initial path requested
 		// did not exist and we looped through the pathway until we found a match. At this point
 		// we've confirmed the first matched pathway exists in the root server directory, so we
 		// can go ahead and just return the path that was requested initially.
@@ -111,99 +97,11 @@ func (fs *Filesystem) SafePath(p string) (string, error) {
 	// If the requested directory from EvalSymlinks begins with the server root directory go
 	// ahead and return it. If not we'll return an error which will block any further action
 	// on the file.
-	if fs.unsafeIsInDataDirectory(p) {
+	if strings.HasPrefix(p, fs.Path()) {
 		return p, nil
 	}
 
-	return "", PathResolutionError{}
-}
-
-// Generate a path to the file by cleaning it up and appending the root server path to it. This
-// DOES NOT guarantee that the file resolves within the server data directory. You'll want to use
-// the fs.unsafeIsInDataDirectory(p) function to confirm.
-func (fs *Filesystem) unsafeFilePath(p string) string {
-	// Calling filepath.Clean on the joined directory will resolve it to the absolute path,
-	// removing any ../ type of resolution arguments, and leaving us with a direct path link.
-	//
-	// This will also trim the existing root path off the beginning of the path passed to
-	// the function since that can get a bit messy.
-	return filepath.Clean(filepath.Join(fs.Path(), strings.TrimPrefix(p, fs.Path())))
-}
-
-// Check that that path string starts with the server data directory path. This function DOES NOT
-// validate that the rest of the path does not end up resolving out of this directory, or that the
-// targeted file or folder is not a symlink doing the same thing.
-func (fs *Filesystem) unsafeIsInDataDirectory(p string) bool {
-	return strings.HasPrefix(strings.TrimSuffix(p, "/")+"/", strings.TrimSuffix(fs.Path(), "/")+"/")
-}
-
-// Helper function to keep some of the codebase a little cleaner. Returns a "safe" version of the path
-// joined with a file. This is important because you cannot just assume that appending a file to a cleaned
-// path will result in a cleaned path to that file. For example, imagine you have the following scenario:
-//
-// my_bad_file -> symlink:/etc/passwd
-//
-// cleaned := SafePath("../../etc") -> "/"
-// filepath.Join(cleaned, my_bad_file) -> "/my_bad_file"
-//
-// You might think that "/my_bad_file" is fine since it isn't pointing to the original "../../etc/my_bad_file".
-// However, this doesn't account for symlinks where the file might be pointing outside of the directory, so
-// calling a function such as Chown against it would chown the symlinked location, and not the file within the
-// Wings daemon.
-func (fs *Filesystem) SafeJoin(dir string, f os.FileInfo) (string, error) {
-	if f.Mode()&os.ModeSymlink != 0 {
-		return fs.SafePath(filepath.Join(dir, f.Name()))
-	}
-
-	return filepath.Join(dir, f.Name()), nil
-}
-
-// Executes the fs.SafePath function in parallel against an array of paths. If any of the calls
-// fails an error will be returned.
-func (fs *Filesystem) ParallelSafePath(paths []string) ([]string, error) {
-	var cleaned []string
-
-	// Simple locker function to avoid racy appends to the array of cleaned paths.
-	var m = new(sync.Mutex)
-	var push = func(c string) {
-		m.Lock()
-		cleaned = append(cleaned, c)
-		m.Unlock()
-	}
-
-	// Create an error group that we can use to run processes in parallel while retaining
-	// the ability to cancel the entire process immediately should any of it fail.
-	g, ctx := errgroup.WithContext(context.Background())
-
-	// Iterate over all of the paths and generate a cleaned path, if there is an error for any
-	// of the files, abort the process.
-	for _, p := range paths {
-		// Create copy so we can use it within the goroutine correctly.
-		pi := p
-
-		// Recursively call this function to continue digging through the directory tree within
-		// a seperate goroutine. If the context is canceled abort this process.
-		g.Go(func() error {
-			select {
-			case <-ctx.Done():
-				return ctx.Err()
-			default:
-				// If the callback returns true, go ahead and keep walking deeper. This allows
-				// us to programatically continue deeper into directories, or stop digging
-				// if that pathway knows it needs nothing else.
-				if c, err := fs.SafePath(pi); err != nil {
-					return err
-				} else {
-					push(c)
-				}
-
-				return nil
-			}
-		})
-	}
-
-	// Block until all of the routines finish and have returned a value.
-	return cleaned, g.Wait()
+	return "", InvalidPathResolution
 }
 
 // Determines if the directory a file is trying to be added to has enough space available
@@ -212,100 +110,76 @@ func (fs *Filesystem) ParallelSafePath(paths []string) ([]string, error) {
 // Because determining the amount of space being used by a server is a taxing operation we
 // will load it all up into a cache and pull from that as long as the key is not expired.
 func (fs *Filesystem) HasSpaceAvailable() bool {
-	size, err := fs.getCachedDiskUsage()
-	if err != nil {
-		fs.Server.Log().WithField("error", err).Warn("failed to determine root server directory size")
-	}
+	var space = fs.Server.Build.DiskSpace
 
-	// Determine if their folder size, in bytes, is smaller than the amount of space they've
-	// been allocated.
-	fs.Server.Proc().SetDisk(size)
-
-	space := fs.Server.Build().DiskSpace
 	// If space is -1 or 0 just return true, means they're allowed unlimited.
-	//
-	// Technically we could skip disk space calculation because we don't need to check if the server exceeds it's limit
-	// but because this method caches the disk usage it would be best to calculate the disk usage and always
-	// return true.
 	if space <= 0 {
 		return true
 	}
 
-	return (size / 1000.0 / 1000.0) <= space
-}
-
-// Internal helper function to allow other parts of the codebase to check the total used disk space
-// as needed without overly taxing the system. This will prioritize the value from the cache to avoid
-// excessive IO usage. We will only walk the filesystem and determine the size of the directory if there
-// is no longer a cached value.
-func (fs *Filesystem) getCachedDiskUsage() (int64, error) {
-	// Obtain an exclusive lock on this process so that we don't unintentionally run it at the same
-	// time as another running process. Once the lock is available it'll read from the cache for the
-	// second call rather than hitting the disk in parallel.
-	//
-	// This effectively the same speed as running this call in parallel since this cache will return
-	// instantly on the second call.
-	fs.mu.Lock()
-	defer fs.mu.Unlock()
-
-	// Expire the cache after 2.5 minutes.
-	if fs.lastLookupTime.After(time.Now().Add(time.Second * -150)) {
-		return fs.diskUsage, nil
+	var size int64
+	if x, exists := fs.Server.Cache.Get("disk_used"); exists {
+		size = x.(int64)
 	}
 
 	// If there is no size its either because there is no data (in which case running this function
 	// will have effectively no impact), or there is nothing in the cache, in which case we need to
 	// grab the size of their data directory. This is a taxing operation, so we want to store it in
 	// the cache once we've gotten it.
-	size, err := fs.DirectorySize("/")
+	if size == 0 {
+		if size, err := fs.DirectorySize("/"); err != nil {
+			zap.S().Warnw("failed to determine directory size", zap.String("server", fs.Server.Uuid), zap.Error(err))
+		} else {
+			fs.Server.Cache.Set("disk_used", size, time.Second * 60)
+		}
+	}
 
-	// Always cache the size, even if there is an error. We want to always return that value
-	// so that we don't cause an endless loop of determining the disk size if there is a temporary
-	// error encountered.
-	fs.lastLookupTime = time.Now()
-	atomic.StoreInt64(&fs.diskUsage, size)
+	// Determine if their folder size, in bytes, is smaller than the amount of space they've
+	// been allocated.
+	fs.Server.Resources.Disk = size
 
-	return size, err
+	return (size / 1000.0 / 1000.0) <= space
 }
 
 // Determines the directory size of a given location by running parallel tasks to iterate
 // through all of the folders. Returns the size in bytes. This can be a fairly taxing operation
 // on locations with tons of files, so it is recommended that you cache the output.
 func (fs *Filesystem) DirectorySize(dir string) (int64, error) {
-	d, err := fs.SafePath(dir)
-	if err != nil {
-		return 0, errors.WithStack(err)
-	}
-
 	var size int64
-	var st syscall.Stat_t
+	var wg sync.WaitGroup
 
-	err = godirwalk.Walk(d, &godirwalk.Options{
-		Unsorted: true,
-		Callback: func(p string, e *godirwalk.Dirent) error {
-			// If this is a symlink then resolve the final destination of it before trying to continue walking
-			// over its contents. If it resolves outside the server data directory just skip everything else for
-			// it. Otherwise, allow it to continue.
-			if e.IsSymlink() {
-				if _, err := fs.SafePath(p); err != nil {
-					if IsPathResolutionError(err) {
-						return godirwalk.SkipThis
+	cleaned, err := fs.SafePath(dir)
+	if err != nil {
+		return 0, err
 	}
 
-					return err
+	files, err := ioutil.ReadDir(cleaned)
+	if err != nil {
+		return 0, err
+	}
+
+	// Iterate over all of the files and directories. If it is a file, immediately add its size
+	// to the total size being returned. If we're dealing with a directory, call this function
+	// on a seperate thread until we have gotten the size of everything nested within the given
+	// directory.
+	for _, f := range files {
+		if f.IsDir() {
+			wg.Add(1)
+
+			go func(p string) {
+				defer wg.Done()
+
+				s, _ := fs.DirectorySize(p)
+				size += s
+			}(filepath.Join(cleaned, f.Name()))
+		} else {
+			size += f.Size()
 		}
 	}
 
-			if !e.IsDir() {
-				syscall.Lstat(p, &st)
-				atomic.AddInt64(&size, st.Size)
-			}
+	wg.Wait()
 
-			return nil
-		},
-	})
-
-	return size, errors.WithStack(err)
+	return size, nil
 }
 
 // Reads a file on the system and returns it as a byte representation in a file
@@ -326,21 +200,17 @@ func (fs *Filesystem) Readfile(p string) (io.Reader, error) {
 }
 
 // Writes a file to the system. If the file does not already exist one will be created.
+//
+// @todo should probably have a write lock here so we don't write twice at once.
 func (fs *Filesystem) Writefile(p string, r io.Reader) error {
 	cleaned, err := fs.SafePath(p)
 	if err != nil {
 		return errors.WithStack(err)
 	}
 
-	var currentSize int64
-
 	// If the file does not exist on the system already go ahead and create the pathway
 	// to it and an empty file. We'll then write to it later on after this completes.
-	if stat, err := os.Stat(cleaned); err != nil {
-		if !os.IsNotExist(err) {
-			return errors.WithStack(err)
-		}
-
+	if stat, err := os.Stat(cleaned); err != nil && os.IsNotExist(err) {
 		if err := os.MkdirAll(filepath.Dir(cleaned), 0755); err != nil {
 			return errors.WithStack(err)
 		}
@@ -348,12 +218,10 @@ func (fs *Filesystem) Writefile(p string, r io.Reader) error {
 		if err := fs.Chown(filepath.Dir(cleaned)); err != nil {
 			return errors.WithStack(err)
 		}
-	} else {
-		if stat.IsDir() {
-			return errors.New("cannot write file contents to a directory")
-		}
-
-		currentSize = stat.Size()
+	} else if err != nil {
+		return errors.WithStack(err)
+	} else if stat.IsDir() {
+		return errors.New("cannot use a directory as a file for writing")
 	}
 
 	// This will either create the file if it does not already exist, or open and
@@ -364,15 +232,33 @@ func (fs *Filesystem) Writefile(p string, r io.Reader) error {
 	}
 	defer file.Close()
 
-	buf := make([]byte, 1024*4)
-	sz, err := io.CopyBuffer(file, r, buf)
+	// Create a new buffered writer that will write to the file we just opened
+	// and stream in the contents from the reader.
+	w := bufio.NewWriter(file)
 
-	// Adjust the disk usage to account for the old size and the new size of the file.
-	atomic.AddInt64(&fs.diskUsage, sz-currentSize)
+	buf := make([]byte, 1024)
+	for {
+		n, err := r.Read(buf)
+		if err != nil && err != io.EOF {
+			return errors.WithStack(err)
+		}
+
+		if n == 0 {
+			break
+		}
+
+		if _, err := w.Write(buf[:n]); err != nil {
+			return errors.WithStack(err)
+		}
+	}
+
+	if err := w.Flush(); err != nil {
+		return errors.WithStack(err)
+	}
 
 	// Finally, chown the file to ensure the permissions don't end up out-of-whack
 	// if we had just created it.
-	return fs.Chown(cleaned)
+	return fs.Chown(p)
 }
 
 // Defines the stat struct object.
@@ -413,18 +299,14 @@ func (fs *Filesystem) Stat(p string) (*Stat, error) {
 		return nil, err
 	}
 
-	return fs.unsafeStat(cleaned)
-}
-
-func (fs *Filesystem) unsafeStat(p string) (*Stat, error) {
-	s, err := os.Stat(p)
+	s, err := os.Stat(cleaned)
 	if err != nil {
 		return nil, err
 	}
 
-	var m *mimetype.MIME
+	var m = "inode/directory"
 	if !s.IsDir() {
-		m, err = mimetype.DetectFile(p)
+		m, _, err = mimetype.DetectFile(cleaned)
 		if err != nil {
 			return nil, err
 		}
@@ -432,17 +314,13 @@ func (fs *Filesystem) unsafeStat(p string) (*Stat, error) {
 
 	st := &Stat{
 		Info:     s,
-		Mimetype: "inode/directory",
-	}
-
-	if m != nil {
-		st.Mimetype = m.String()
+		Mimetype: m,
 	}
 
 	return st, nil
 }
 
-// Creates a new directory (name) at a specified path (p) for the server.
+// Creates a new directory (name) at a specificied path (p) for the server.
 func (fs *Filesystem) CreateDirectory(name string, p string) error {
 	cleaned, err := fs.SafePath(path.Join(p, name))
 	if err != nil {
@@ -464,66 +342,58 @@ func (fs *Filesystem) Rename(from string, to string) error {
 		return errors.WithStack(err)
 	}
 
-	if f, err := os.Stat(cleanedFrom); err != nil {
-		return errors.WithStack(err)
-	} else {
-		d := cleanedTo
-		if !f.IsDir() {
-			d = strings.TrimSuffix(d, path.Base(cleanedTo))
-		}
-
-		// Ensure that the directory we're moving into exists correctly on the system.
-		if mkerr := os.MkdirAll(d, 0644); mkerr != nil {
-			return errors.WithStack(mkerr)
-		}
-	}
-
 	return os.Rename(cleanedFrom, cleanedTo)
 }
 
-// Recursively iterates over a file or directory and sets the permissions on all of the
-// underlying files. Iterate over all of the files and directories. If it is a file just
-// go ahead and perform the chown operation. Otherwise dig deeper into the directory until
-// we've run out of directories to dig into.
+// Recursively iterates over a directory and sets the permissions on all of the
+// underlying files.
 func (fs *Filesystem) Chown(path string) error {
 	cleaned, err := fs.SafePath(path)
 	if err != nil {
 		return errors.WithStack(err)
 	}
 
-	uid := config.Get().System.User.Uid
-	gid := config.Get().System.User.Gid
+	if s, err := os.Stat(cleaned); err != nil {
+		return errors.WithStack(err)
+	} else if !s.IsDir() {
+		return os.Chown(cleaned, fs.Configuration.User.Uid, fs.Configuration.User.Gid)
+	}
 
-	// Start by just chowning the initial path that we received.
-	if err := os.Chown(cleaned, uid, gid); err != nil {
+	return fs.chownDirectory(cleaned)
+}
+
+// Iterate over all of the files and directories. If it is a file just go ahead and perform
+// the chown operation. Otherwise dig deeper into the directory until we've run out of
+// directories to dig into.
+func (fs *Filesystem) chownDirectory(path string) error {
+	var wg sync.WaitGroup
+
+	cleaned, err := fs.SafePath(path)
+	if err != nil {
 		return errors.WithStack(err)
 	}
 
-	// If this is not a directory we can now return from the function, there is nothing
-	// left that we need to do.
-	if st, _ := os.Stat(cleaned); !st.IsDir() {
-		return nil
+	files, err := ioutil.ReadDir(cleaned)
+	if err != nil {
+		return errors.WithStack(err)
 	}
 
-	// If this was a directory, begin walking over its contents recursively and ensure that all
-	// of the subfiles and directories get their permissions updated as well.
-	return godirwalk.Walk(cleaned, &godirwalk.Options{
-		Unsorted: true,
-		Callback: func(p string, e *godirwalk.Dirent) error {
-			// Do not attempt to chmod a symlink. Go's os.Chown function will affect the symlink
-			// so if it points to a location outside the data directory the user would be able to
-			// (un)intentionally modify that files permissions.
-			if e.IsSymlink() {
-				if e.IsDir() {
-					return godirwalk.SkipThis
+	for _, f := range files {
+		if f.IsDir() {
+			wg.Add(1)
+
+			go func(p string) {
+				defer wg.Done()
+				fs.chownDirectory(p)
+			}(filepath.Join(cleaned, f.Name()))
+		} else {
+			os.Chown(filepath.Join(cleaned, f.Name()), fs.Configuration.User.Uid, fs.Configuration.User.Gid)
 		}
+	}
+
+	wg.Wait()
 
 	return nil
-			}
-
-			return os.Chown(p, uid, gid)
-		},
-	})
 }
 
 // Copies a given file to the same location and appends a suffix to the file to indicate that
@@ -536,12 +406,13 @@ func (fs *Filesystem) Copy(p string) error {
 		return errors.WithStack(err)
 	}
 
-	if s, err := os.Stat(cleaned); err != nil {
+	if s, err := os.Stat(cleaned); (err != nil && os.IsNotExist(err)) || s.IsDir() || !s.Mode().IsRegular() {
+		// For now I think I am okay just returning a nil response if the thing
+		// we're trying to copy doesn't exist. Probably will want to come back and
+		// re-evaluate if this is a smart decision (I'm guessing not).
+		return nil
+	} else if err != nil {
 		return errors.WithStack(err)
-	} else if s.IsDir() || !s.Mode().IsRegular() {
-		// If this is a directory or not a regular file, just throw a not-exist error
-		// since anything calling this function should understand what that means.
-		return os.ErrNotExist
 	}
 
 	base := filepath.Base(cleaned)
@@ -599,8 +470,7 @@ func (fs *Filesystem) Copy(p string) error {
 	}
 	defer dest.Close()
 
-	buf := make([]byte, 1024*4)
-	if _, err := io.CopyBuffer(dest, source, buf); err != nil {
+	if _, err := io.Copy(dest, source); err != nil {
 		return errors.WithStack(err)
 	}
 
@@ -610,42 +480,17 @@ func (fs *Filesystem) Copy(p string) error {
 // Deletes a file or folder from the system. Prevents the user from accidentally
 // (or maliciously) removing their root server data directory.
 func (fs *Filesystem) Delete(p string) error {
-	// This is one of the few (only?) places in the codebase where we're explictly not using
-	// the SafePath functionality when working with user provided input. If we did, you would
-	// not be able to delete a file that is a symlink pointing to a location outside of the data
-	// directory.
-	//
-	// We also want to avoid resolving a symlink that points _within_ the data directory and thus
-	// deleting the actual source file for the symlink rather than the symlink itself. For these
-	// purposes just resolve the actual file path using filepath.Join() and confirm that the path
-	// exists within the data directory.
-	resolved := fs.unsafeFilePath(p)
-	if !fs.unsafeIsInDataDirectory(resolved) {
-		return PathResolutionError{}
+	cleaned, err := fs.SafePath(p)
+	if err != nil {
+		return errors.WithStack(err)
 	}
 
 	// Block any whoopsies.
-	if resolved == fs.Path() {
+	if cleaned == fs.Path() {
 		return errors.New("cannot delete root server directory")
 	}
 
-	if st, err := os.Stat(resolved); err != nil {
-		if !os.IsNotExist(err) {
-			fs.Server.Log().WithField("error", err).WithField("path", resolved).Warn("error while attempting to stat file before deletion")
-		}
-	} else {
-		if !st.IsDir() {
-			atomic.SwapInt64(&fs.diskUsage, -st.Size())
-		} else {
-			go func(st os.FileInfo, resolved string) {
-				if s, err := fs.DirectorySize(resolved); err == nil {
-					atomic.AddInt64(&fs.diskUsage, -s)
-				}
-			}(st, resolved)
-		}
-	}
-
-	return os.RemoveAll(resolved)
+	return os.RemoveAll(cleaned)
 }
 
 // Lists the contents of a given directory and returns stat information about each
@@ -666,40 +511,26 @@ func (fs *Filesystem) ListDirectory(p string) ([]*Stat, error) {
 	// You must initialize the output of this directory as a non-nil value otherwise
 	// when it is marshaled into a JSON object you'll just get 'null' back, which will
 	// break the panel badly.
-	out := make([]*Stat, len(files))
+	out := make([]*Stat, 0)
 
 	// Iterate over all of the files and directories returned and perform an async process
 	// to get the mime-type for them all.
-	for i, file := range files {
+	for _, file := range files {
 		wg.Add(1)
 
-		go func(idx int, f os.FileInfo) {
+		go func(f os.FileInfo) {
 			defer wg.Done()
 
-			var m *mimetype.MIME
-			var d = "inode/directory"
+			var m = "inode/directory"
 			if !f.IsDir() {
-				cleanedp, _ := fs.SafeJoin(cleaned, f)
-				if cleanedp != "" {
-					m, _ = mimetype.DetectFile(filepath.Join(cleaned, f.Name()))
-				} else {
-					// Just pass this for an unknown type because the file could not safely be resolved within
-					// the server data path.
-					d = "application/octet-stream"
-				}
+				m, _, _ = mimetype.DetectFile(filepath.Join(cleaned, f.Name()))
 			}
 
-			st := &Stat{
+			out = append(out, &Stat{
 				Info:     f,
-				Mimetype: d,
-			}
-
-			if m != nil {
-				st.Mimetype = m.String()
-			}
-
-			out[idx] = st
-		}(i, file)
+				Mimetype: m,
+			})
+		}(file)
 	}
 
 	wg.Wait()
@@ -737,147 +568,3 @@ func (fs *Filesystem) EnsureDataDirectory() error {
 
 	return nil
 }
-
-// Given a directory, iterate through all of the files and folders within it and determine
-// if they should be included in the output based on an array of ignored matches. This uses
-// standard .gitignore formatting to make that determination.
-//
-// If no ignored files are passed through you'll get the entire directory listing.
-func (fs *Filesystem) GetIncludedFiles(dir string, ignored []string) (*backup.IncludedFiles, error) {
-	cleaned, err := fs.SafePath(dir)
-	if err != nil {
-		return nil, err
-	}
-
-	i, err := ignore.CompileIgnoreLines(ignored...)
-	if err != nil {
-		return nil, err
-	}
-
-	// Walk through all of the files and directories on a server. This callback only returns
-	// files found, and will keep walking deeper and deeper into directories.
-	inc := new(backup.IncludedFiles)
-
-	err = godirwalk.Walk(cleaned, &godirwalk.Options{
-		Unsorted: true,
-		Callback: func(p string, e *godirwalk.Dirent) error {
-			sp := p
-			if e.IsSymlink() {
-				sp, err = fs.SafePath(p)
-				if err != nil {
-					if IsPathResolutionError(err) {
-						return godirwalk.SkipThis
-					}
-
-					return err
-				}
-			}
-
-			// Avoid unnecessary parsing if there are no ignored files, nothing will match anyways
-			// so no reason to call the function.
-			if len(ignored) == 0 || !i.MatchesPath(strings.TrimPrefix(sp, fs.Path()+"/")) {
-				inc.Push(sp)
-			}
-
-			// We can't just abort if the path is technically ignored. It is possible there is a nested
-			// file or folder that should not be excluded, so in this case we need to just keep going
-			// until we get to a final state.
-			return nil
-		},
-	})
-
-	return inc, errors.WithStack(err)
-}
-
-// Compresses all of the files matching the given paths in the specified directory. This function
-// also supports passing nested paths to only compress certain files and folders when working in
-// a larger directory. This effectively creates a local backup, but rather than ignoring specific
-// files and folders, it takes an allow-list of files and folders.
-//
-// All paths are relative to the dir that is passed in as the first argument, and the compressed
-// file will be placed at that location named `archive-{date}.tar.gz`.
-func (fs *Filesystem) CompressFiles(dir string, paths []string) (os.FileInfo, error) {
-	cleanedRootDir, err := fs.SafePath(dir)
-	if err != nil {
-		return nil, err
-	}
-
-	// Take all of the paths passed in and merge them together with the root directory we've gotten.
-	for i, p := range paths {
-		paths[i] = filepath.Join(cleanedRootDir, p)
-	}
-
-	cleaned, err := fs.ParallelSafePath(paths)
-	if err != nil {
-		return nil, err
-	}
-
-	inc := new(backup.IncludedFiles)
-	// Iterate over all of the cleaned paths and merge them into a large object of final file
-	// paths to pass into the archiver. As directories are encountered this will drop into them
-	// and look for all of the files.
-	for _, p := range cleaned {
-		f, err := os.Stat(p)
-		if err != nil {
-			fs.Server.Log().WithField("error", err).WithField("path", p).Debug("failed to stat file or directory for compression")
-			continue
-		}
-
-		if !f.IsDir() {
-			inc.Push(p)
-		} else {
-			err := godirwalk.Walk(p, &godirwalk.Options{
-				Unsorted: true,
-				Callback: func(p string, e *godirwalk.Dirent) error {
-					sp := p
-					if e.IsSymlink() {
-						// Ensure that any symlinks are properly resolved to their final destination. If
-						// that destination is outside the server directory skip over this entire item, otherwise
-						// use the resolved location for the rest of this function.
-						sp, err = fs.SafePath(p)
-						if err != nil {
-							if IsPathResolutionError(err) {
-								return godirwalk.SkipThis
-							}
-
-							return err
-						}
-					}
-
-					if !e.IsDir() {
-						inc.Push(sp)
-					}
-
-					return nil
-				},
-			})
-
-			if err != nil {
-				return nil, err
-			}
-		}
-	}
-
-	a := &backup.Archive{TrimPrefix: fs.Path(), Files: inc}
-
-	d := path.Join(cleanedRootDir, fmt.Sprintf("archive-%s.tar.gz", strings.ReplaceAll(time.Now().Format(time.RFC3339), ":", "")))
-
-	return a.Create(d, context.Background())
-}
-
-// Handle errors encountered when walking through directories.
-//
-// If there is a path resolution error just skip the item entirely. Only return this for a
-// directory, otherwise return nil. Returning this error for a file will stop the walking
-// for the remainder of the directory. This is assuming an os.FileInfo struct was even returned.
-func (fs *Filesystem) handleWalkerError(err error, f os.FileInfo) error {
-	if !IsPathResolutionError(err) {
-		return err
-	}
-
-	if f != nil && f.IsDir() {
-		return filepath.SkipDir
-	}
-
-	return nil
-}

server/filesystem_unarchive.go

@@ -1,104 +0,0 @@
-package server
-
-import (
-	"archive/tar"
-	"archive/zip"
-	"compress/gzip"
-	"fmt"
-	"github.com/mholt/archiver/v3"
-	"github.com/pkg/errors"
-	"os"
-	"path/filepath"
-	"reflect"
-	"sync"
-	"sync/atomic"
-)
-
-// Look through a given archive and determine if decompressing it would put the server over
-// its allocated disk space limit.
-func (fs *Filesystem) SpaceAvailableForDecompression(dir string, file string) (bool, error) {
-	// Don't waste time trying to determine this if we know the server will have the space for
-	// it since there is no limit.
-	if fs.Server.Build().DiskSpace <= 0 {
-		return true, nil
-	}
-
-	source, err := fs.SafePath(filepath.Join(dir, file))
-	if err != nil {
-		return false, err
-	}
-
-	wg := new(sync.WaitGroup)
-
-	var dirSize int64
-	var cErr error
-	// Get the cached size in a parallel process so that if it is not cached we are not
-	// waiting an unnecessary amount of time on this call.
-	go func() {
-		wg.Add(1)
-		defer wg.Done()
-
-		dirSize, cErr = fs.getCachedDiskUsage()
-	}()
-
-	var size int64
-	// In a seperate thread, walk over the archive and figure out just how large the final
-	// output would be from dearchiving it.
-	go func() {
-		wg.Add(1)
-		defer wg.Done()
-
-		// Walk all of the files and calculate the total decompressed size of this archive.
-		archiver.Walk(source, func(f archiver.File) error {
-			atomic.AddInt64(&size, f.Size())
-
-			return nil
-		})
-	}()
-
-	wg.Wait()
-
-	return ((dirSize + size) / 1000.0 / 1000.0) <= fs.Server.Build().DiskSpace, cErr
-}
-
-// Decompress a file in a given directory by using the archiver tool to infer the file
-// type and go from there. This will walk over all of the files within the given archive
-// and ensure that there is not a zip-slip attack being attempted by validating that the
-// final path is within the server data directory.
-func (fs *Filesystem) DecompressFile(dir string, file string) error {
-	source, err := fs.SafePath(filepath.Join(dir, file))
-	if err != nil {
-		return errors.WithStack(err)
-	}
-
-	// Make sure the file exists basically.
-	if _, err := os.Stat(source); err != nil {
-		return errors.WithStack(err)
-	}
-
-	// Walk over all of the files spinning up an additional go-routine for each file we've encountered
-	// and then extract that file from the archive and write it to the disk. If any part of this process
-	// encounters an error the entire process will be stopped.
-	return archiver.Walk(source, func(f archiver.File) error {
-		// Don't waste time with directories, we don't need to create them if they have no contents, and
-		// we will ensure the directory exists when opening the file for writing anyways.
-		if f.IsDir() {
-			return nil
-		}
-
-		var name string
-
-		switch s := f.Sys().(type) {
-		case *tar.Header:
-			name = s.Name
-		case *gzip.Header:
-			name = s.Name
-		case *zip.FileHeader:
-			name = s.Name
-		default:
-			return errors.New(fmt.Sprintf("could not parse underlying data source with type %s", reflect.TypeOf(s).String()))
-		}
-
-		return errors.Wrap(fs.Writefile(name, f), "could not extract file from archive")
-	})
-}

server/install.go

@@ -1,520 +0,0 @@
-package server
-
-import (
-	"bufio"
-	"bytes"
-	"context"
-	"github.com/apex/log"
-	"github.com/docker/docker/api/types"
-	"github.com/docker/docker/api/types/container"
-	"github.com/docker/docker/api/types/mount"
-	"github.com/docker/docker/client"
-	"github.com/pkg/errors"
-	"github.com/pterodactyl/wings/api"
-	"github.com/pterodactyl/wings/config"
-	"github.com/pterodactyl/wings/environment"
-	"golang.org/x/sync/semaphore"
-	"html/template"
-	"io"
-	"os"
-	"path/filepath"
-	"strconv"
-	"time"
-)
-
-// Executes the installation stack for a server process. Bubbles any errors up to the calling
-// function which should handle contacting the panel to notify it of the server state.
-//
-// Pass true as the first arugment in order to execute a server sync before the process to
-// ensure the latest information is used.
-func (s *Server) Install(sync bool) error {
-	if sync {
-		s.Log().Info("syncing server state with remote source before executing installation process")
-		if err := s.Sync(); err != nil {
-			return err
-		}
-	}
-
-	// Send the start event so the Panel can automatically update.
-	s.Events().Publish(InstallStartedEvent, "")
-
-	err := s.internalInstall()
-
-	s.Log().Debug("notifying panel of server install state")
-	if serr := s.SyncInstallState(err == nil); serr != nil {
-		l := s.Log().WithField("was_successful", err == nil)
-
-		// If the request was successful but there was an error with this request, attach the
-		// error to this log entry. Otherwise ignore it in this log since whatever is calling
-		// this function should handle the error and will end up logging the same one.
-		if err == nil {
-			l.WithField("error", serr)
-		}
-
-		l.Warn("failed to notify panel of server install state")
-	}
-
-	// Ensure that the server is marked as offline at this point, otherwise you end up
-	// with a blank value which is a bit confusing.
-	s.SetState(environment.ProcessOfflineState)
-
-	// Push an event to the websocket so we can auto-refresh the information in the panel once
-	// the install is completed.
-	s.Events().Publish(InstallCompletedEvent, "")
-
-	return err
-}
-
-// Reinstalls a server's software by utilizing the install script for the server egg. This
-// does not touch any existing files for the server, other than what the script modifies.
-func (s *Server) Reinstall() error {
-	if s.GetState() != environment.ProcessOfflineState {
-		s.Log().Debug("waiting for server instance to enter a stopped state")
-		if err := s.Environment.WaitForStop(10, true); err != nil {
-			return err
-		}
-	}
-
-	return s.Install(true)
-}
-
-// Internal installation function used to simplify reporting back to the Panel.
-func (s *Server) internalInstall() error {
-	script, rerr, err := api.NewRequester().GetInstallationScript(s.Id())
-	if err != nil || rerr != nil {
-		if err != nil {
-			return err
-		}
-
-		return errors.New(rerr.String())
-	}
-
-	p, err := NewInstallationProcess(s, &script)
-	if err != nil {
-		return errors.WithStack(err)
-	}
-
-	s.Log().Info("beginning installation process for server")
-	if err := p.Run(); err != nil {
-		return err
-	}
-
-	s.Log().Info("completed installation process for server")
-	return nil
-}
-
-type InstallationProcess struct {
-	Server *Server
-	Script *api.InstallationScript
-
-	client  *client.Client
-	context context.Context
-}
-
-// Generates a new installation process struct that will be used to create containers,
-// and otherwise perform installation commands for a server.
-func NewInstallationProcess(s *Server, script *api.InstallationScript) (*InstallationProcess, error) {
-	proc := &InstallationProcess{
-		Script: script,
-		Server: s,
-	}
-
-	ctx, cancel := context.WithCancel(context.Background())
-	s.installer.cancel = &cancel
-
-	if c, err := client.NewClientWithOpts(client.FromEnv); err != nil {
-		return nil, errors.WithStack(err)
-	} else {
-		proc.client = c
-		proc.context = ctx
-	}
-
-	return proc, nil
-}
-
-// Try to obtain an exclusive lock on the installation process for the server. Waits up to 10
-// seconds before aborting with a context timeout.
-func (s *Server) acquireInstallationLock() error {
-	if s.installer.sem == nil {
-		s.installer.sem = semaphore.NewWeighted(1)
-	}
-
-	ctx, _ := context.WithTimeout(context.Background(), time.Second*10)
-
-	return s.installer.sem.Acquire(ctx, 1)
-}
-
-// Determines if the server is actively running the installation process by checking the status
-// of the semaphore lock.
-func (s *Server) IsInstalling() bool {
-	if s.installer.sem == nil {
-		return false
-	}
-
-	if s.installer.sem.TryAcquire(1) {
-		// If we made it into this block it means we were able to obtain an exclusive lock
-		// on the semaphore. In that case, go ahead and release that lock immediately, and
-		// return false.
-		s.installer.sem.Release(1)
-
-		return false
-	}
-
-	return true
-}
-
-// Aborts the server installation process by calling the cancel function on the installer
-// context.
-func (s *Server) AbortInstallation() {
-	if !s.IsInstalling() {
-		return
-	}
-
-	if s.installer.cancel != nil {
-		cancel := *s.installer.cancel
-
-		s.Log().Warn("aborting running installation process")
-		cancel()
-	}
-}
-
-// Removes the installer container for the server.
-func (ip *InstallationProcess) RemoveContainer() {
-	err := ip.client.ContainerRemove(ip.context, ip.Server.Id()+"_installer", types.ContainerRemoveOptions{
-		RemoveVolumes: true,
-		Force:         true,
-	})
-
-	if err != nil && !client.IsErrNotFound(err) {
-		ip.Server.Log().WithField("error", errors.WithStack(err)).Warn("failed to delete server install container")
-	}
-}
-
-// Runs the installation process, this is done as a backgrounded thread. This will configure
-// the required environment, and then spin up the installation container.
-//
-// Once the container finishes installing the results will be stored in an installation
-// log in the server's configuration directory.
-func (ip *InstallationProcess) Run() error {
-	ip.Server.Log().Debug("acquiring installation process lock")
-	if err := ip.Server.acquireInstallationLock(); err != nil {
-		return err
-	}
-
-	// We now have an exclusive lock on this installation process. Ensure that whenever this
-	// process is finished that the semaphore is released so that other processes and be executed
-	// without encounting a wait timeout.
-	defer func() {
-		ip.Server.Log().Debug("releasing installation process lock")
-		ip.Server.installer.sem.Release(1)
-		ip.Server.installer.cancel = nil
-	}()
-
-	if err := ip.BeforeExecute(); err != nil {
-		return errors.WithStack(err)
-	}
-
-	cid, err := ip.Execute()
-	if err != nil {
-		ip.RemoveContainer()
-
-		return errors.WithStack(err)
-	}
-
-	// If this step fails, log a warning but don't exit out of the process. This is completely
-	// internal to the daemon's functionality, and does not affect the status of the server itself.
-	if err := ip.AfterExecute(cid); err != nil {
-		ip.Server.Log().WithField("error", err).Warn("failed to complete after-execute step of installation process")
-	}
-
-	return nil
-}
-
-// Returns the location of the temporary data for the installation process.
-func (ip *InstallationProcess) tempDir() string {
-	return filepath.Join(os.TempDir(), "pterodactyl/", ip.Server.Id())
-}
-
-// Writes the installation script to a temporary file on the host machine so that it
-// can be properly mounted into the installation container and then executed.
-func (ip *InstallationProcess) writeScriptToDisk() error {
-	// Make sure the temp directory root exists before trying to make a directory within it. The
-	// ioutil.TempDir call expects this base to exist, it won't create it for you.
-	if err := os.MkdirAll(ip.tempDir(), 0700); err != nil {
-		return errors.Wrap(err, "could not create temporary directory for install process")
-	}
-
-	f, err := os.OpenFile(filepath.Join(ip.tempDir(), "install.sh"), os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0644)
-	if err != nil {
-		return errors.Wrap(err, "failed to write server installation script to disk before mount")
-	}
-	defer f.Close()
-
-	w := bufio.NewWriter(f)
-
-	scanner := bufio.NewScanner(bytes.NewReader([]byte(ip.Script.Script)))
-	for scanner.Scan() {
-		w.WriteString(scanner.Text() + "\n")
-	}
-
-	if err := scanner.Err(); err != nil {
-		return errors.WithStack(err)
-	}
-
-	w.Flush()
-
-	return nil
-}
-
-// Pulls the docker image to be used for the installation container.
-func (ip *InstallationProcess) pullInstallationImage() error {
-	r, err := ip.client.ImagePull(ip.context, ip.Script.ContainerImage, types.ImagePullOptions{})
-	if err != nil {
-		return errors.WithStack(err)
-	}
-
-	// Block continuation until the image has been pulled successfully.
-	scanner := bufio.NewScanner(r)
-	for scanner.Scan() {
-		log.Debug(scanner.Text())
-	}
-
-	if err := scanner.Err(); err != nil {
-		return errors.WithStack(err)
-	}
-
-	return nil
-}
-
-// Runs before the container is executed. This pulls down the required docker container image
-// as well as writes the installation script to the disk. This process is executed in an async
-// manner, if either one fails the error is returned.
-func (ip *InstallationProcess) BeforeExecute() error {
-	if err := ip.writeScriptToDisk(); err != nil {
-		return errors.Wrap(err, "failed to write installation script to disk")
-	}
-
-	if err := ip.pullInstallationImage(); err != nil {
-		return errors.Wrap(err, "failed to pull updated installation container image for server")
-	}
-
-	opts := types.ContainerRemoveOptions{
-		RemoveVolumes: true,
-		Force:         true,
-	}
-
-	if err := ip.client.ContainerRemove(ip.context, ip.Server.Id()+"_installer", opts); err != nil {
-		if !client.IsErrNotFound(err) {
-			return errors.Wrap(err, "failed to remove existing install container for server")
-		}
-	}
-
-	return nil
-}
-
-// Returns the log path for the installation process.
-func (ip *InstallationProcess) GetLogPath() string {
-	return filepath.Join(config.Get().System.GetInstallLogPath(), ip.Server.Id()+".log")
-}
-
-// Cleans up after the execution of the installation process. This grabs the logs from the
-// process to store in the server configuration directory, and then destroys the associated
-// installation container.
-func (ip *InstallationProcess) AfterExecute(containerId string) error {
-	defer ip.RemoveContainer()
-
-	ip.Server.Log().WithField("container_id", containerId).Debug("pulling installation logs for server")
-	reader, err := ip.client.ContainerLogs(ip.context, containerId, types.ContainerLogsOptions{
-		ShowStdout: true,
-		ShowStderr: true,
-		Follow:     false,
-	})
-
-	if err != nil && !client.IsErrNotFound(err) {
-		return errors.WithStack(err)
-	}
-
-	f, err := os.OpenFile(ip.GetLogPath(), os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0600)
-	if err != nil {
-		return errors.WithStack(err)
-	}
-	defer f.Close()
-
-	// We write the contents of the container output to a more "permanent" file so that they
-	// can be referenced after this container is deleted. We'll also include the environment
-	// variables passed into the container to make debugging things a little easier.
-	ip.Server.Log().WithField("path", ip.GetLogPath()).Debug("writing most recent installation logs to disk")
-
-	tmpl, err := template.New("header").Parse(`Pterodactyl Server Installation Log
-
-|
-| Details
-| ------------------------------
-  Server UUID:          {{.Server.Id}}
-  Container Image:      {{.Script.ContainerImage}}
-  Container Entrypoint: {{.Script.Entrypoint}}
-
-|
-| Environment Variables
-| ------------------------------
-{{ range $key, $value := .Server.GetEnvironmentVariables }}  {{ $value }}
-{{ end }}
-
-|
-| Script Output
-| ------------------------------
-`)
-	if err != nil {
-		return errors.WithStack(err)
-	}
-
-	if err := tmpl.Execute(f, ip); err != nil {
-		return errors.WithStack(err)
-	}
-
-	if _, err := io.Copy(f, reader); err != nil {
-		return errors.WithStack(err)
-	}
-
-	return nil
-}
-
-// Executes the installation process inside a specially created docker container.
-func (ip *InstallationProcess) Execute() (string, error) {
-	conf := &container.Config{
-		Hostname:     "installer",
-		AttachStdout: true,
-		AttachStderr: true,
-		AttachStdin:  true,
-		OpenStdin:    true,
-		Tty:          true,
-		Cmd:          []string{ip.Script.Entrypoint, "./mnt/install/install.sh"},
-		Image:        ip.Script.ContainerImage,
-		Env:          ip.Server.GetEnvironmentVariables(),
-		Labels: map[string]string{
-			"Service":       "Pterodactyl",
-			"ContainerType": "server_installer",
-		},
-	}
-
-	tmpfsSize := strconv.Itoa(int(config.Get().Docker.TmpfsSize))
-	hostConf := &container.HostConfig{
-		Mounts: []mount.Mount{
-			{
-				Target:   "/mnt/server",
-				Source:   ip.Server.Filesystem.Path(),
-				Type:     mount.TypeBind,
-				ReadOnly: false,
-			},
-			{
-				Target:   "/mnt/install",
-				Source:   ip.tempDir(),
-				Type:     mount.TypeBind,
-				ReadOnly: false,
-			},
-		},
-		Tmpfs: map[string]string{
-			"/tmp": "rw,exec,nosuid,size=" + tmpfsSize + "M",
-		},
-		DNS: config.Get().Docker.Network.Dns,
-		LogConfig: container.LogConfig{
-			Type: "local",
-			Config: map[string]string{
-				"max-size": "5m",
-				"max-file": "1",
-				"compress": "false",
-			},
-		},
-		Privileged:  true,
-		NetworkMode: container.NetworkMode(config.Get().Docker.Network.Mode),
-	}
-
-	ip.Server.Log().WithField("install_script", ip.tempDir()+"/install.sh").Info("creating install container for server process")
-	// Remove the temporary directory when the installation process finishes for this server container.
-	defer func() {
-		if err := os.RemoveAll(ip.tempDir()); err != nil {
-			if !os.IsNotExist(err) {
-				ip.Server.Log().WithField("error", err).Warn("failed to remove temporary data directory after install process")
-			}
-		}
-	}()
-
-	r, err := ip.client.ContainerCreate(ip.context, conf, hostConf, nil, ip.Server.Id()+"_installer")
-	if err != nil {
-		return "", errors.WithStack(err)
-	}
-
-	ip.Server.Log().WithField("container_id", r.ID).Info("running installation script for server in container")
-	if err := ip.client.ContainerStart(ip.context, r.ID, types.ContainerStartOptions{}); err != nil {
-		return "", err
-	}
-
-	go func(id string) {
-		ip.Server.Events().Publish(DaemonMessageEvent, "Starting installation process, this could take a few minutes...")
-		if err := ip.StreamOutput(id); err != nil {
-			ip.Server.Log().WithField("error", err).Error("error while handling output stream for server install process")
-		}
-		ip.Server.Events().Publish(DaemonMessageEvent, "Installation process completed.")
-	}(r.ID)
-
-	sChann, eChann := ip.client.ContainerWait(ip.context, r.ID, container.WaitConditionNotRunning)
-	select {
-	case err := <-eChann:
-		if err != nil {
-			return "", errors.WithStack(err)
-		}
-	case <-sChann:
-	}
-
-	return r.ID, nil
-}
-
-// Streams the output of the installation process to a log file in the server configuration
-// directory, as well as to a websocket listener so that the process can be viewed in
-// the panel by administrators.
-func (ip *InstallationProcess) StreamOutput(id string) error {
-	reader, err := ip.client.ContainerLogs(ip.context, id, types.ContainerLogsOptions{
-		ShowStdout: true,
-		ShowStderr: true,
-		Follow:     true,
-	})
-
-	if err != nil {
-		return errors.WithStack(err)
-	}
-
-	defer reader.Close()
-
-	s := bufio.NewScanner(reader)
-	for s.Scan() {
-		ip.Server.Events().Publish(InstallOutputEvent, s.Text())
-	}
-
-	if err := s.Err(); err != nil {
-		ip.Server.Log().WithFields(log.Fields{
-			"container_id": id,
-			"error":        errors.WithStack(err),
-		}).Warn("error processing scanner line in installation output for server")
-	}
-
-	return nil
-}
-
-// Makes a HTTP request to the Panel instance notifying it that the server has
-// completed the installation process, and what the state of the server is. A boolean
-// value of "true" means everything was successful, "false" means something went
-// wrong and the server must be deleted and re-created.
-func (s *Server) SyncInstallState(successful bool) error {
-	r := api.NewRequester()
-
-	rerr, err := r.SendInstallationStatus(s.Id(), successful)
-	if rerr != nil || err != nil {
-		if err != nil {
-			return errors.WithStack(err)
-		}
-
-		return errors.New(rerr.String())
-	}
-
-	return nil
-}

server/listeners.go

@@ -1,105 +1,45 @@
 package server
 
 import (
-	"encoding/json"
-	"github.com/apex/log"
-	"github.com/pkg/errors"
 	"github.com/pterodactyl/wings/api"
-	"github.com/pterodactyl/wings/environment"
-	"github.com/pterodactyl/wings/events"
-	"regexp"
+	"go.uber.org/zap"
+	"strings"
 )
 
+
 // Adds all of the internal event listeners we want to use for a server.
-func (s *Server) StartEventListeners() {
-	console := make(chan events.Event)
-	state := make(chan events.Event)
-	stats := make(chan events.Event)
-
-	s.Environment.Events().Subscribe(environment.ConsoleOutputEvent, console)
-	s.Environment.Events().Subscribe(environment.StateChangeEvent, state)
-	s.Environment.Events().Subscribe(environment.ResourceEvent, stats)
-
-	// TODO: this is leaky I imagine since the routines aren't destroyed when the server is?
-	go func() {
-		for {
-			select {
-			case data := <-console:
-				// Immediately emit this event back over the server event stream since it is
-				// being called from the environment event stream and things probably aren't
-				// listening to that event.
-				s.Events().Publish(ConsoleOutputEvent, data.Data)
-
-				// Also pass the data along to the console output channel.
-				s.onConsoleOutput(data.Data)
-			case data := <-state:
-				s.SetState(data.Data)
-			case data := <-stats:
-				st := new(environment.Stats)
-				if err := json.Unmarshal([]byte(data.Data), st); err != nil {
-					s.Log().WithField("error", errors.WithStack(err)).Warn("failed to unmarshal server environment stats")
-					continue
-				}
-
-				// Update the server resource tracking object with the resources we got here.
-				s.resources.mu.Lock()
-				s.resources.Stats = *st
-				s.resources.mu.Unlock()
-
-				// TODO: we'll need to handle this better since calling it in rapid succession will
-				//  cause it to block until the first call is done calculating disk usage, which will
-				//  case stat events to pile up for the server.
-				s.Filesystem.HasSpaceAvailable()
-
-				s.emitProcUsage()
-			}
-		}
-	}()
+func (s *Server) AddEventListeners() {
+	s.AddListener(ConsoleOutputEvent, s.onConsoleOutput())
 }
 
-var stripAnsiRegex = regexp.MustCompile("[\u001B\u009B][[\\]()#;?]*(?:(?:(?:[a-zA-Z\\d]*(?:;[a-zA-Z\\d]*)*)?\u0007)|(?:(?:\\d{1,4}(?:;\\d{0,4})*)?[\\dA-PRZcf-ntqry=><~]))")
+var onConsoleOutputListener func(string)
 
 // Custom listener for console output events that will check if the given line
 // of output matches one that should mark the server as started or not.
-func (s *Server) onConsoleOutput(data string) {
-	// Get the server's process configuration.
-	processConfiguration := s.ProcessConfiguration()
-
-	// Check if the server is currently starting.
-	if s.GetState() == environment.ProcessStartingState {
-		// Check if we should strip ansi color codes.
-		if processConfiguration.Startup.StripAnsi {
-			// Strip ansi color codes from the data string.
-			data = stripAnsiRegex.ReplaceAllString(data, "")
-		}
-
-		// Iterate over all the done lines.
-		for _, l := range processConfiguration.Startup.Done {
-			if !l.Matches(data) {
-				continue
-			}
-
-			s.Log().WithFields(log.Fields{
-				"match":   l.String(),
-				"against": data,
-			}).Debug("detected server in running state based on console line output")
-
+func (s *Server) onConsoleOutput() *func(string) {
+	if onConsoleOutputListener == nil {
+		onConsoleOutputListener = func (data string) {
 			// If the specific line of output is one that would mark the server as started,
 			// set the server to that state. Only do this if the server is not currently stopped
 			// or stopping.
-			_ = s.SetState(environment.ProcessRunningState)
-			break
-		}
+			if s.State == ProcessStartingState && strings.Contains(data, s.processConfiguration.Startup.Done) {
+				zap.S().Debugw(
+					"detected server in running state based on line output", zap.String("match", s.processConfiguration.Startup.Done), zap.String("against", data),
+				)
+
+				s.SetState(ProcessRunningState)
 			}
 
 			// If the command sent to the server is one that should stop the server we will need to
 			// set the server to be in a stopping state, otherwise crash detection will kick in and
 			// cause the server to unexpectedly restart on the user.
-	if s.IsRunning() {
-		stop := processConfiguration.Stop
+			if s.State == ProcessStartingState || s.State == ProcessRunningState {
+				if s.processConfiguration.Stop.Type == api.ProcessStopCommand && data == s.processConfiguration.Stop.Value {
+					s.SetState(ProcessStoppingState)
+				}
+			}
+		}
+	}
 
-		if stop.Type == api.ProcessStopCommand && data == stop.Value {
-			_ = s.SetState(environment.ProcessOfflineState)
-		}
-	}
+	return &onConsoleOutputListener
 }

server/loader.go

@@ -1,130 +0,0 @@
-package server
-
-import (
-	"fmt"
-	"github.com/apex/log"
-	"github.com/creasty/defaults"
-	"github.com/gammazero/workerpool"
-	"github.com/pkg/errors"
-	"github.com/pterodactyl/wings/api"
-	"github.com/pterodactyl/wings/environment"
-	"github.com/pterodactyl/wings/environment/docker"
-	"os"
-	"runtime"
-	"time"
-)
-
-var servers = NewCollection(nil)
-
-func GetServers() *Collection {
-	return servers
-}
-
-// Iterates over a given directory and loads all of the servers listed before returning
-// them to the calling function.
-func LoadDirectory() error {
-	if len(servers.items) != 0 {
-		return errors.New("cannot call LoadDirectory with a non-nil collection")
-	}
-
-	log.Info("fetching list of servers from API")
-	configs, rerr, err := api.NewRequester().GetAllServerConfigurations()
-	if err != nil || rerr != nil {
-		if err != nil {
-			return errors.WithStack(err)
-		}
-
-		return errors.New(rerr.String())
-	}
-
-	log.Debug("retrieving cached server states from disk")
-	states, err := getServerStates()
-	if err != nil {
-		log.WithField("error", errors.WithStack(err)).Error("failed to retrieve locally cached server states from disk, assuming all servers in offline state")
-	}
-
-	start := time.Now()
-	log.WithField("total_configs", len(configs)).Info("processing servers returned by the API")
-
-	pool := workerpool.New(runtime.NumCPU())
-	for uuid, data := range configs {
-		uuid := uuid
-		data := data
-
-		pool.Submit(func() {
-			log.WithField("server", uuid).Info("creating new server object from API response")
-			s, err := FromConfiguration(data)
-			if err != nil {
-				log.WithField("server", uuid).WithField("error", err).Error("failed to load server, skipping...")
-				return
-			}
-
-			if state, exists := states[s.Id()]; exists {
-				s.Log().WithField("state", state).Debug("found existing server state in cache file; re-instantiating server state")
-				s.SetState(state)
-			}
-
-			servers.Add(s)
-		})
-	}
-
-	// Wait until we've processed all of the configuration files in the directory
-	// before continuing.
-	pool.StopWait()
-
-	diff := time.Now().Sub(start)
-	log.WithField("duration", fmt.Sprintf("%s", diff)).Info("finished processing server configurations")
-
-	return nil
-}
-
-// Initializes a server using a data byte array. This will be marshaled into the
-// given struct using a YAML marshaler. This will also configure the given environment
-// for a server.
-func FromConfiguration(data *api.ServerConfigurationResponse) (*Server, error) {
-	cfg := Configuration{}
-	if err := defaults.Set(&cfg); err != nil {
-		return nil, errors.Wrap(err, "failed to set struct defaults for server configuration")
-	}
-
-	s := new(Server)
-	if err := defaults.Set(s); err != nil {
-		return nil, errors.Wrap(err, "failed to set struct defaults for server")
-	}
-
-	s.cfg = cfg
-	if err := s.UpdateDataStructure(data.Settings, false); err != nil {
-		return nil, err
-	}
-
-	s.Archiver = Archiver{Server: s}
-	s.Filesystem = Filesystem{Server: s}
-
-	// Right now we only support a Docker based environment, so I'm going to hard code
-	// this logic in. When we're ready to support other environment we'll need to make
-	// some modifications here obviously.
-	envCfg := environment.NewConfiguration(s.Mounts(), s.cfg.Allocations, s.cfg.Build, s.cfg.EnvVars)
-	meta := docker.Metadata{
-		Invocation: s.Config().Invocation,
-		Image:      s.Config().Container.Image,
-	}
-
-	if env, err := docker.New(s.Id(), &meta, envCfg); err != nil {
-		return nil, err
-	} else {
-		s.Environment = env
-		s.StartEventListeners()
-	}
-
-	// Forces the configuration to be synced with the panel.
-	if err := s.SyncWithConfiguration(data); err != nil {
-		return nil, err
-	}
-
-	// If the server's data directory exists, force disk usage calculation.
-	if _, err := os.Stat(s.Filesystem.Path()); err == nil {
-		go s.Filesystem.HasSpaceAvailable()
-	}
-
-	return s, nil
-}

server/mounts.go

@@ -1,98 +0,0 @@
-package server
-
-import (
-	"github.com/apex/log"
-	"github.com/pkg/errors"
-	"github.com/pterodactyl/wings/config"
-	"github.com/pterodactyl/wings/environment"
-	"os"
-	"path/filepath"
-	"strings"
-)
-
-// To avoid confusion when working with mounts, assume that a server.Mount has not been properly
-// cleaned up and had the paths set. An environment.Mount should only be returned with valid paths
-// that have been checked.
-type Mount environment.Mount
-
-// Returns the default container mounts for the server instance. This includes the data directory
-// for the server as well as any timezone related files if they exist on the host system so that
-// servers running within the container will use the correct time.
-func (s *Server) Mounts() []environment.Mount {
-	var m []environment.Mount
-
-	m = append(m, environment.Mount{
-		Default:  true,
-		Target:   "/home/container",
-		Source:   s.Filesystem.Path(),
-		ReadOnly: false,
-	})
-
-	// Try to mount in /etc/localtime and /etc/timezone if they exist on the host system.
-	if _, err := os.Stat("/etc/localtime"); err != nil {
-		if !os.IsNotExist(err) {
-			log.WithField("error", errors.WithStack(err)).Warn("failed to stat /etc/localtime due to an error")
-		}
-	} else {
-		m = append(m, environment.Mount{
-			Target:   "/etc/localtime",
-			Source:   "/etc/localtime",
-			ReadOnly: true,
-		})
-	}
-
-	if _, err := os.Stat("/etc/timezone"); err != nil {
-		if !os.IsNotExist(err) {
-			log.WithField("error", errors.WithStack(err)).Warn("failed to stat /etc/timezone due to an error")
-		}
-	} else {
-		m = append(m, environment.Mount{
-			Target:   "/etc/timezone",
-			Source:   "/etc/timezone",
-			ReadOnly: true,
-		})
-	}
-
-	// Also include any of this server's custom mounts when returning them.
-	return append(m, s.customMounts()...)
-}
-
-// Returns the custom mounts for a given server after verifying that they are within a list of
-// allowed mount points for the node.
-func (s *Server) customMounts() []environment.Mount {
-	var mounts []environment.Mount
-
-	// TODO: probably need to handle things trying to mount directories that do not exist.
-	for _, m := range s.Config().Mounts {
-		source := filepath.Clean(m.Source)
-		target := filepath.Clean(m.Target)
-
-		logger := s.Log().WithFields(log.Fields{
-			"source_path": source,
-			"target_path": target,
-			"read_only":   m.ReadOnly,
-		})
-
-		mounted := false
-		for _, allowed := range config.Get().AllowedMounts {
-			if !strings.HasPrefix(source, allowed) {
-				continue
-			}
-
-			mounted = true
-			mounts = append(mounts, environment.Mount{
-				Source:   source,
-				Target:   target,
-				ReadOnly: m.ReadOnly,
-			})
-
-			break
-		}
-
-		if !mounted {
-			logger.Warn("skipping custom server mount, not in list of allowed mount points")
-		}
-	}
-
-	return mounts
-}

server/power.go

@@ -1,157 +0,0 @@
-package server
-
-import (
-	"context"
-	"github.com/pkg/errors"
-	"golang.org/x/sync/semaphore"
-	"os"
-	"time"
-)
-
-type PowerAction string
-
-// The power actions that can be performed for a given server. This taps into the given server
-// environment and performs them in a way that prevents a race condition from occurring. For
-// example, sending two "start" actions back to back will not process the second action until
-// the first action has been completed.
-//
-// This utilizes a workerpool with a limit of one worker so that all of the actions execute
-// in a sync manner.
-const (
-	PowerActionStart     = "start"
-	PowerActionStop      = "stop"
-	PowerActionRestart   = "restart"
-	PowerActionTerminate = "kill"
-)
-
-// Checks if the power action being received is valid.
-func (pa PowerAction) IsValid() bool {
-	return pa == PowerActionStart ||
-		pa == PowerActionStop ||
-		pa == PowerActionTerminate ||
-		pa == PowerActionRestart
-}
-
-func (pa PowerAction) IsStart() bool {
-	return pa == PowerActionStart || pa == PowerActionRestart
-}
-
-// Helper function that can receive a power action and then process the actions that need
-// to occur for it. This guards against someone calling Start() twice at the same time, or
-// trying to restart while another restart process is currently running.
-//
-// However, the code design for the daemon does depend on the user correctly calling this
-// function rather than making direct calls to the start/stop/restart functions on the
-// environment struct.
-func (s *Server) HandlePowerAction(action PowerAction, waitSeconds ...int) error {
-	if s.powerLock == nil {
-		s.powerLock = semaphore.NewWeighted(1)
-	}
-
-	// Only attempt to acquire a lock on the process if this is not a termination event. We want to
-	// just allow those events to pass right through for good reason. If a server is currently trying
-	// to process a power action but has gotten stuck you still should be able to pass through the
-	// terminate event. The good news here is that doing that oftentimes will get the stuck process to
-	// move again, and naturally continue through the process.
-	if action != PowerActionTerminate {
-		// Determines if we should wait for the lock or not. If a value greater than 0 is passed
-		// into this function we will wait that long for a lock to be acquired.
-		if len(waitSeconds) > 0 && waitSeconds[0] != 0 {
-			ctx, _ := context.WithTimeout(context.Background(), time.Second*time.Duration(waitSeconds[0]))
-			// Attempt to acquire a lock on the power action lock for up to 30 seconds. If more
-			// time than that passes an error will be propagated back up the chain and this
-			// request will be aborted.
-			if err := s.powerLock.Acquire(ctx, 1); err != nil {
-				return errors.Wrap(err, "could not acquire lock on power state")
-			}
-		} else {
-			// If no wait duration was provided we will attempt to immediately acquire the lock
-			// and bail out with a context deadline error if it is not acquired immediately.
-			if ok := s.powerLock.TryAcquire(1); !ok {
-				return errors.Wrap(context.DeadlineExceeded, "could not acquire lock on power state")
-			}
-		}
-
-		// Release the lock once the process being requested has finished executing.
-		defer s.powerLock.Release(1)
-	} else {
-		// Still try to acquire the lock if terminating and it is available, just so that other power
-		// actions are blocked until it has completed. However, if it is unavailable we won't stop
-		// the entire process.
-		if ok := s.powerLock.TryAcquire(1); ok {
-			// If we managed to acquire the lock be sure to released it once this process is completed.
-			defer s.powerLock.Release(1)
-		}
-	}
-
-	switch action {
-	case PowerActionStart:
-		// Run the pre-boot logic for the server before processing the environment start.
-		if err := s.onBeforeStart(); err != nil {
-			return err
-		}
-
-		return s.Environment.Start()
-	case PowerActionStop:
-		// We're specificially waiting for the process to be stopped here, otherwise the lock is released
-		// too soon, and you can rack up all sorts of issues.
-		return s.Environment.WaitForStop(10*60, true)
-	case PowerActionRestart:
-		if err := s.Environment.WaitForStop(10*60, true); err != nil {
-			// Even timeout errors should be bubbled back up the stack. If the process didn't stop
-			// nicely, but the terminate argument was passed then the server is stopped without an
-			// error being returned.
-			//
-			// However, if terminate is not passed you'll get a context deadline error. We could
-			// probably handle that nicely here, but I'd rather just pass it back up the stack for now.
-			// Either way, any type of error indicates we should not attempt to start the server back
-			// up.
-			return err
-		}
-
-		// Now actually try to start the process by executing the normal pre-boot logic.
-		if err := s.onBeforeStart(); err != nil {
-			return err
-		}
-
-		return s.Environment.Start()
-	case PowerActionTerminate:
-		return s.Environment.Terminate(os.Kill)
-	}
-
-	return errors.New("attempting to handle unknown power action")
-}
-
-// Execute a few functions before actually calling the environment start commands. This ensures
-// that everything is ready to go for environment booting, and that the server can even be started.
-func (s *Server) onBeforeStart() error {
-	// Disallow start & restart if the server is suspended.
-	if s.IsSuspended() {
-		return new(suspendedError)
-	}
-
-	s.Log().Info("syncing server configuration with panel")
-	if err := s.Sync(); err != nil {
-		return errors.Wrap(err, "unable to sync server data from Panel instance")
-	}
-
-	if !s.Filesystem.HasSpaceAvailable() {
-		return errors.New("cannot start server, not enough disk space available")
-	}
-
-	// Update the configuration files defined for the server before beginning the boot process.
-	// This process executes a bunch of parallel updates, so we just block until that process
-	// is completee. Any errors as a result of this will just be bubbled out in the logger,
-	// we don't need to actively do anything about it at this point, worst comes to worst the
-	// server starts in a weird state and the user can manually adjust.
-	s.PublishConsoleOutputFromDaemon("Updating process configuration files...")
-	s.UpdateConfigurationFiles()
-
-	s.PublishConsoleOutputFromDaemon("Ensuring file permissions are set correctly, this could take a few seconds...")
-	// Ensure all of the server file permissions are set correctly before booting the process.
-	if err := s.Filesystem.Chown("/"); err != nil {
-		return errors.Wrap(err, "failed to chown root server directory during pre-boot process")
-	}
-
-	return nil
-}

server/resources.go

@@ -1,65 +1,54 @@
 package server
 
 import (
-	"encoding/json"
-	"github.com/pterodactyl/wings/environment"
-	"sync"
+	"github.com/docker/docker/api/types"
+	"math"
 )
 
 // Defines the current resource usage for a given server instance. If a server is offline you
 // should obviously expect memory and CPU usage to be 0. However, disk will always be returned
 // since that is not dependent on the server being running to collect that data.
 type ResourceUsage struct {
-	mu sync.RWMutex
-
-	// Embed the current environment stats into this server specific resource usage struct.
-	environment.Stats
-
-	// The current server status.
-	State string `json:"state" default:"offline"`
-
+	// The total amount of memory, in bytes, that this server instance is consuming.
+	Memory uint64 `json:"memory_bytes"`
+	// The total amount of memory this container or resource can use. Inside Docker this is
+	// going to be higher than you'd expect because we're automatically allocating overhead
+	// abilities for the container, so its not going to be a perfect match.
+	MemoryLimit uint64 `json:"memory_limit_bytes"`
+	// The absolute CPU usage is the amount of CPU used in relation to the entire system and
+	// does not take into account any limits on the server process itself.
+	CpuAbsolute float64 `json:"cpu_absolute"`
 	// The current disk space being used by the server. This is cached to prevent slow lookup
 	// issues on frequent refreshes.
 	Disk int64 `json:"disk_bytes"`
+	// Current network transmit in & out for a container.
+	Network struct {
+		RxBytes uint64 `json:"rx_bytes"`
+		TxBytes uint64 `json:"tx_bytes"`
+	} `json:"network"`
 }
 
-// Returns the resource usage stats for the server instance. If the server is not running, only the
-// disk space currently used will be returned. When the server is running all of the other stats will
-// be returned.
+// Calculates the absolute CPU usage used by the server process on the system, not constrained
+// by the defined CPU limits on the container.
 //
-// When a process is stopped all of the stats are zeroed out except for the disk.
-func (s *Server) Proc() *ResourceUsage {
-	s.resources.mu.RLock()
-	defer s.resources.mu.RUnlock()
+// @see https://github.com/docker/cli/blob/aa097cf1aa19099da70930460250797c8920b709/cli/command/container/stats_helpers.go#L166
+func (ru *ResourceUsage) CalculateAbsoluteCpu(pStats *types.CPUStats, stats *types.CPUStats) float64 {
+	// Calculate the change in CPU usage between the current and previous reading.
+	cpuDelta := float64(stats.CPUUsage.TotalUsage) - float64(pStats.CPUUsage.TotalUsage)
 
-	return &s.resources
-}
-
-func (s *Server) emitProcUsage() {
-	s.resources.mu.RLock()
-	defer s.resources.mu.RUnlock()
-
-	b, _ := json.Marshal(s.resources)
-	s.Events().Publish(StatsEvent, string(b))
-}
-
-// Returns the servers current state.
-func (ru *ResourceUsage) getInternalState() string {
-	ru.mu.RLock()
-	defer ru.mu.RUnlock()
-
-	return ru.State
-}
-
-// Sets the new state for the server.
-func (ru *ResourceUsage) setInternalState(state string) {
-	ru.mu.Lock()
-	ru.State = state
-	ru.mu.Unlock()
-}
-
-func (ru *ResourceUsage) SetDisk(i int64) {
-	ru.mu.Lock()
-	ru.Disk = i
-	ru.mu.Unlock()
+	// Calculate the change for the entire system's CPU usage between current and previous reading.
+	systemDelta := float64(stats.SystemUsage) - float64(pStats.SystemUsage)
+
+	// Calculate the total number of CPU cores being used.
+	cpus := float64(stats.OnlineCPUs)
+	if cpus == 0.0 {
+		cpus = float64(len(stats.CPUUsage.PercpuUsage))
+	}
+
+	percent := 0.0
+	if systemDelta > 0.0 && cpuDelta > 0.0 {
+		percent = (cpuDelta / systemDelta) * cpus * 100.0
+	}
+
+	return math.Round(percent*1000) / 1000
 }

server/server.go

@@ -1,103 +1,260 @@
 package server
 
 import (
-	"context"
 	"fmt"
-	"github.com/apex/log"
+	"github.com/creasty/defaults"
+	"github.com/patrickmn/go-cache"
 	"github.com/pkg/errors"
 	"github.com/pterodactyl/wings/api"
-	"github.com/pterodactyl/wings/environment"
-	"github.com/pterodactyl/wings/environment/docker"
-	"github.com/pterodactyl/wings/events"
-	"golang.org/x/sync/semaphore"
+	"github.com/pterodactyl/wings/config"
+	"github.com/remeh/sizedwaitgroup"
+	"go.uber.org/zap"
+	"gopkg.in/yaml.v2"
+	"io/ioutil"
+	"os"
+	"path"
 	"strings"
 	"sync"
 	"time"
 )
 
+var servers *Collection
+
+func GetServers() *Collection {
+	return servers
+}
+
 // High level definition for a server instance being controlled by Wings.
 type Server struct {
-	// Internal mutex used to block actions that need to occur sequentially, such as
-	// writing the configuration to the disk.
-	sync.RWMutex
-	emitterLock  sync.Mutex
-	powerLock    *semaphore.Weighted
-	throttleLock sync.RWMutex
+	// The unique identifier for the server that should be used when referencing
+	// it aganist the Panel API (and internally). This will be used when naming
+	// docker containers as well as in log output.
+	Uuid string `json:"uuid"`
 
-	// Maintains the configuration for the server. This is the data that gets returned by the Panel
-	// such as build settings and container images.
-	cfg Configuration
+	// Wether or not the server is in a suspended state. Suspended servers cannot
+	// be started or modified except in certain scenarios by an admin user.
+	Suspended bool `json:"suspended"`
 
-	// The crash handler for this server instance.
-	crasher CrashHandler
+	// The power state of the server.
+	State string `default:"offline" json:"state"`
 
-	resources   ResourceUsage
-	Archiver    Archiver                       `json:"-"`
-	Environment environment.ProcessEnvironment `json:"-"`
-	Filesystem  Filesystem                     `json:"-"`
+	// The command that should be used when booting up the server instance.
+	Invocation string `json:"invocation"`
 
-	// Events emitted by the server instance.
-	emitter *events.EventBus
+	// An array of environment variables that should be passed along to the running
+	// server process.
+	EnvVars map[string]string `json:"environment" yaml:"environment"`
+
+	CrashDetection CrashDetection `json:"crash_detection" yaml:"crash_detection"`
+	Build          BuildSettings  `json:"build"`
+	Allocations    Allocations    `json:"allocations"`
+	Environment    Environment    `json:"-" yaml:"-"`
+	Filesystem     Filesystem     `json:"-" yaml:"-"`
+	Resources      ResourceUsage  `json:"resources" yaml:"-"`
+
+	Container struct {
+		// Defines the Docker image that will be used for this server
+		Image string `json:"image,omitempty"`
+		// If set to true, OOM killer will be disabled on the server's Docker container.
+		// If not present (nil) we will default to disabling it.
+		OomDisabled bool `default:"true" json:"oom_disabled" yaml:"oom_disabled"`
+	} `json:"container,omitempty"`
+
+	// Server cache used to store frequently requested information in memory and make
+	// certain long operations return faster. For example, FS disk space usage.
+	Cache *cache.Cache `json:"-" yaml:"-"`
+
+	// All of the registered event listeners for this server instance.
+	listeners EventListeners
 
 	// Defines the process configuration for the server instance. This is dynamically
 	// fetched from the Pterodactyl Server instance each time the server process is
 	// started, and then cached here.
-	procConfig *api.ProcessConfiguration
+	processConfiguration *api.ProcessConfiguration
 
-	// Tracks the installation process for this server and prevents a server from running
-	// two installer processes at the same time. This also allows us to cancel a running
-	// installation process, for example when a server is deleted from the panel while the
-	// installer process is still running.
-	installer InstallerDetails
-
-	// The console throttler instance used to control outputs.
-	throttler *ConsoleThrottler
+	// Internal mutex used to block actions that need to occur sequentially, such as
+	// writing the configuration to the disk.
+	mutex *sync.Mutex
 }
 
-type InstallerDetails struct {
-	// The cancel function for the installer. This will be a non-nil value while there
-	// is an installer running for the server.
-	cancel *context.CancelFunc
+// The build settings for a given server that impact docker container creation and
+// resource limits for a server instance.
+type BuildSettings struct {
+	// The total amount of memory in megabytes that this server is allowed to
+	// use on the host system.
+	MemoryLimit int64 `json:"memory_limit" yaml:"memory"`
 
-	// Installer lock. You should obtain an exclusive lock on this context while running
-	// the installation process and release it when finished.
-	sem *semaphore.Weighted
+	// The amount of additional swap space to be provided to a container instance.
+	Swap int64 `json:"swap"`
+
+	// The relative weight for IO operations in a container. This is relative to other
+	// containers on the system and should be a value between 10 and 1000.
+	IoWeight uint16 `json:"io_weight" yaml:"io"`
+
+	// The percentage of CPU that this instance is allowed to consume relative to
+	// the host. A value of 200% represents complete utilization of two cores. This
+	// should be a value between 1 and THREAD_COUNT * 100.
+	CpuLimit int64 `json:"cpu_limit" yaml:"cpu"`
+
+	// The amount of disk space in megabytes that a server is allowed to use.
+	DiskSpace int64 `json:"disk_space" yaml:"disk"`
 }
 
-// Returns the UUID for the server instance.
-func (s *Server) Id() string {
-	return s.Config().GetUuid()
-}
-
-// Returns all of the environment variables that should be assigned to a running
-// server instance.
-func (s *Server) GetEnvironmentVariables() []string {
-	zone, _ := time.Now().In(time.Local).Zone()
-
-	var out = []string{
-		fmt.Sprintf("TZ=%s", zone),
-		fmt.Sprintf("STARTUP=%s", s.Config().Invocation),
-		fmt.Sprintf("SERVER_MEMORY=%d", s.Build().MemoryLimit),
-		fmt.Sprintf("SERVER_IP=%s", s.Config().Allocations.DefaultMapping.Ip),
-		fmt.Sprintf("SERVER_PORT=%d", s.Config().Allocations.DefaultMapping.Port),
+// Converts the CPU limit for a server build into a number that can be better understood
+// by the Docker environment. If there is no limit set, return -1 which will indicate to
+// Docker that it has unlimited CPU quota.
+func (b *BuildSettings) ConvertedCpuLimit() int64 {
+	if b.CpuLimit == 0 {
+		return -1
 	}
 
-eloop:
-	for k := range s.Config().EnvVars {
-		for _, e := range out {
-			if strings.HasPrefix(e, strings.ToUpper(k)) {
-				continue eloop
+	return b.CpuLimit * 1000
+}
+
+// Returns the amount of swap available as a total in bytes. This is returned as the amount
+// of memory available to the server initially, PLUS the amount of additional swap to include
+// which is the format used by Docker.
+func (b *BuildSettings) ConvertedSwap() int64 {
+	if b.Swap < 0 {
+		return -1
+	}
+
+	return (b.Swap * 1000000) + (b.MemoryLimit * 1000000)
+}
+
+// Defines the allocations available for a given server. When using the Docker environment
+// driver these correspond to mappings for the container that allow external connections.
+type Allocations struct {
+	// Defines the default allocation that should be used for this server. This is
+	// what will be used for {SERVER_IP} and {SERVER_PORT} when modifying configuration
+	// files or the startup arguments for a server.
+	DefaultMapping struct {
+		Ip   string `json:"ip"`
+		Port int    `json:"port"`
+	} `json:"default" yaml:"default"`
+
+	// Mappings contains all of the ports that should be assigned to a given server
+	// attached to the IP they correspond to.
+	Mappings map[string][]int `json:"mappings"`
+}
+
+// Iterates over a given directory and loads all of the servers listed before returning
+// them to the calling function.
+func LoadDirectory(dir string, cfg *config.SystemConfiguration) error {
+	// We could theoretically use a standard wait group here, however doing
+	// that introduces the potential to crash the program due to too many
+	// open files. This wouldn't happen on a small setup, but once the daemon is
+	// handling many servers you run that risk.
+	//
+	// For now just process 10 files at a time, that should be plenty fast to
+	// read and parse the YAML. We should probably make this configurable down
+	// the road to help big instances scale better.
+	wg := sizedwaitgroup.New(10)
+
+	f, err := ioutil.ReadDir(dir)
+	if err != nil {
+		return err
+	}
+
+	servers = NewCollection(nil)
+
+	for _, file := range f {
+		if !strings.HasSuffix(file.Name(), ".yml") || file.IsDir() {
+			continue
+		}
+
+		wg.Add()
+		// For each of the YAML files we find, parse it and create a new server
+		// configuration object that can then be returned to the caller.
+		go func(file os.FileInfo) {
+			defer wg.Done()
+
+			b, err := ioutil.ReadFile(path.Join(dir, file.Name()))
+			if err != nil {
+				zap.S().Errorw("failed to read server configuration file, skipping...", zap.String("server", file.Name()), zap.Error(err))
+				return
+			}
+
+			s, err := FromConfiguration(b, cfg)
+			if err != nil {
+				if IsServerDoesNotExistError(err) {
+					zap.S().Infow("server does not exist on remote system", zap.String("server", file.Name()))
+				} else {
+					zap.S().Errorw("failed to parse server configuration, skipping...", zap.String("server", file.Name()), zap.Error(err))
+				}
+
+				return
+			}
+
+			servers.Add(s)
+		}(file)
+	}
+
+	// Wait until we've processed all of the configuration files in the directory
+	// before continuing.
+	wg.Wait()
+
+	return nil
+}
+
+// Initializes the default required internal struct components for a Server.
+func (s *Server) Init() {
+	s.listeners = make(map[string][]EventListenerFunction)
+	s.mutex = &sync.Mutex{}
+}
+
+// Initalizes a server using a data byte array. This will be marshaled into the
+// given struct using a YAML marshaler. This will also configure the given environment
+// for a server.
+func FromConfiguration(data []byte, cfg *config.SystemConfiguration) (*Server, error) {
+	s := new(Server)
+
+	if err := defaults.Set(s); err != nil {
+		return nil, err
+	}
+
+	s.Init()
+
+	if err := yaml.Unmarshal(data, s); err != nil {
+		return nil, err
+	}
+
+	s.AddEventListeners()
+
+	withConfiguration := func(e *DockerEnvironment) {
+		e.User = cfg.User.Uid
+		e.TimezonePath = cfg.TimezonePath
+		e.Server = s
+	}
+
+	// Right now we only support a Docker based environment, so I'm going to hard code
+	// this logic in. When we're ready to support other environment we'll need to make
+	// some modifications here obviously.
+	var env Environment
+	if t, err := NewDockerEnvironment(withConfiguration); err == nil {
+		env = t
+	} else {
+		return nil, err
+	}
+
+	s.Environment = env
+	s.Cache = cache.New(time.Minute*10, time.Minute*15)
+	s.Filesystem = Filesystem{
+		Configuration: cfg,
+		Server:        s,
+	}
+	s.Resources = ResourceUsage{}
+
+	// This is also done when the server is booted, however we need to account for instances
+	// where the server is already running and the Daemon reboots. In those cases this will
+	// allow us to you know, stop servers.
+	if cfg.SyncServersOnBoot {
+		if err := s.Sync(); err != nil {
+			return nil, err
 		}
 	}
 
-		out = append(out, fmt.Sprintf("%s=%s", strings.ToUpper(k), s.Config().EnvVars.Get(k)))
-	}
-
-	return out
-}
-
-func (s *Server) Log() *log.Entry {
-	return log.WithField("server", s.Id())
+	return s, nil
 }
 
 // Syncs the state of the server on the Panel with Wings. This ensures that we're always
@@ -120,25 +277,12 @@ func (s *Server) Sync() error {
 		return errors.New(rerr.String())
 	}
 
-	return s.SyncWithConfiguration(cfg)
-}
-
-func (s *Server) SyncWithConfiguration(cfg *api.ServerConfigurationResponse) error {
 	// Update the data structure and persist it to the disk.
-	if err := s.UpdateDataStructure(cfg.Settings, false); err != nil {
+	if err:= s.UpdateDataStructure(cfg.Settings, false); err != nil {
 		return errors.WithStack(err)
 	}
 
-	s.Lock()
-	s.procConfig = cfg.ProcessConfiguration
-	s.Unlock()
-
-	// If this is a Docker environment we need to sync the stop configuration with it so that
-	// the process isn't just terminated when a user requests it be stopped.
-	if e, ok := s.Environment.(*docker.Environment); ok {
-		s.Log().Debug("syncing stop configuration with configured docker environment")
-		e.SetStopConfiguration(&cfg.ProcessConfiguration.Stop)
-	}
+	s.processConfiguration = cfg.ProcessConfiguration
 
 	return nil
 }
@@ -159,31 +303,71 @@ func (s *Server) IsBootable() bool {
 // Initalizes a server instance. This will run through and ensure that the environment
 // for the server is setup, and that all of the necessary files are created.
 func (s *Server) CreateEnvironment() error {
-	// Ensure the data directory exists before getting too far through this process.
-	if err := s.Filesystem.EnsureDataDirectory(); err != nil {
-		return errors.WithStack(err)
+	return s.Environment.Create()
+}
+
+const (
+	ProcessOfflineState  = "offline"
+	ProcessStartingState = "starting"
+	ProcessRunningState  = "running"
+	ProcessStoppingState = "stopping"
+)
+
+// Sets the state of the server internally. This function handles crash detection as
+// well as reporting to event listeners for the server.
+func (s *Server) SetState(state string) error {
+	if state != ProcessOfflineState && state != ProcessStartingState && state != ProcessRunningState && state != ProcessStoppingState {
+		return errors.New(fmt.Sprintf("invalid server state received: %s", state))
 	}
 
-	return s.Environment.Create()
+	prevState := s.State
+	s.State = state
+
+	// Persist this change to the disk immediately so that should the Daemon be stopped or
+	// crash we can immediately restore the server state.
+	//
+	// This really only makes a difference if all of the Docker containers are also stopped,
+	// but this was a highly requested feature and isn't hard to work with, so lets do it.
+	//
+	// We also get the benefit of server status changes always propagating corrected configurations
+	// to the disk should we forget to do it elsewhere.
+	go func(server *Server) {
+		if _, err := server.WriteConfigurationToDisk(); err != nil {
+			zap.S().Warnw("failed to write server state change to disk", zap.String("server", server.Uuid), zap.Error(err))
+		}
+	}(s)
+
+	zap.S().Debugw("saw server status change event", zap.String("server", s.Uuid), zap.String("status", state))
+
+	// Emit the event to any listeners that are currently registered.
+	s.Emit(StatusEvent, s.State)
+
+	// If server was in an online state, and is now in an offline state we should handle
+	// that as a crash event. In that scenario, check the last crash time, and the crash
+	// counter.
+	//
+	// In the event that we have passed the thresholds, don't do anything, otherwise
+	// automatically attempt to start the process back up for the user. This is done in a
+	// seperate thread as to not block any actions currently taking place in the flow
+	// that called this function.
+	if (prevState == ProcessStartingState || prevState == ProcessRunningState) && s.State == ProcessOfflineState {
+		zap.S().Infow("detected server as entering a potentially crashed state; running handler", zap.String("server", s.Uuid))
+
+		go func(server *Server) {
+			if err := server.handleServerCrash(); err != nil {
+				if IsTooFrequentCrashError(err) {
+					zap.S().Infow("did not restart server after crash; occurred too soon after last", zap.String("server", server.Uuid))
+				} else {
+					zap.S().Errorw("failed to handle server crash state", zap.String("server", server.Uuid), zap.Error(err))
+				}
+			}
+		}(s)
+	}
+
+	return nil
 }
 
 // Gets the process configuration data for the server.
 func (s *Server) GetProcessConfiguration() (*api.ServerConfigurationResponse, *api.RequestError, error) {
-	return api.NewRequester().GetServerConfiguration(s.Id())
-}
-
-// Checks if the server is marked as being suspended or not on the system.
-func (s *Server) IsSuspended() bool {
-	return s.Config().Suspended
-}
-
-func (s *Server) Build() *environment.Limits {
-	return &s.Config().Build
-}
-
-func (s *Server) ProcessConfiguration() *api.ProcessConfiguration {
-	s.RLock()
-	defer s.RUnlock()
-
-	return s.procConfig
+	return api.NewRequester().GetServerConfiguration(s.Uuid)
 }

server/state.go

@@ -1,146 +0,0 @@
-package server
-
-import (
-	"encoding/json"
-	"fmt"
-	"github.com/pkg/errors"
-	"github.com/pterodactyl/wings/config"
-	"github.com/pterodactyl/wings/environment"
-	"io"
-	"io/ioutil"
-	"os"
-	"sync"
-)
-
-var stateMutex sync.Mutex
-
-// Returns the state of the servers.
-func getServerStates() (map[string]string, error) {
-	// Request a lock after we check if the file exists.
-	stateMutex.Lock()
-	defer stateMutex.Unlock()
-
-	// Open the states file.
-	f, err := os.OpenFile(config.Get().System.GetStatesPath(), os.O_RDONLY|os.O_CREATE, 0644)
-	if err != nil {
-		return nil, errors.WithStack(err)
-	}
-	defer f.Close()
-
-	// Convert the json object to a map.
-	states := map[string]string{}
-	if err := json.NewDecoder(f).Decode(&states); err != nil && err != io.EOF {
-		return nil, errors.WithStack(err)
-	}
-
-	return states, nil
-}
-
-// saveServerStates .
-func saveServerStates() error {
-	// Get the states of all servers on the daemon.
-	states := map[string]string{}
-	for _, s := range GetServers().All() {
-		states[s.Id()] = s.GetState()
-	}
-
-	// Convert the map to a json object.
-	data, err := json.Marshal(states)
-	if err != nil {
-		return errors.WithStack(err)
-	}
-
-	stateMutex.Lock()
-	defer stateMutex.Unlock()
-
-	// Write the data to the file
-	if err := ioutil.WriteFile(config.Get().System.GetStatesPath(), data, 0644); err != nil {
-		return errors.WithStack(err)
-	}
-
-	return nil
-}
-
-// Sets the state of the server internally. This function handles crash detection as
-// well as reporting to event listeners for the server.
-func (s *Server) SetState(state string) error {
-	if state != environment.ProcessOfflineState &&
-		state != environment.ProcessStartingState &&
-		state != environment.ProcessRunningState &&
-		state != environment.ProcessStoppingState {
-		return errors.New(fmt.Sprintf("invalid server state received: %s", state))
-	}
-
-	prevState := s.GetState()
-
-	// Update the currently tracked state for the server.
-	s.Proc().setInternalState(state)
-
-	// Emit the event to any listeners that are currently registered.
-	if prevState != state {
-		s.Log().WithField("status", s.Proc().State).Debug("saw server status change event")
-		s.Events().Publish(StatusEvent, s.Proc().State)
-	}
-
-	// Persist this change to the disk immediately so that should the Daemon be stopped or
-	// crash we can immediately restore the server state.
-	//
-	// This really only makes a difference if all of the Docker containers are also stopped,
-	// but this was a highly requested feature and isn't hard to work with, so lets do it.
-	//
-	// We also get the benefit of server status changes always propagating corrected configurations
-	// to the disk should we forget to do it elsewhere.
-	go func() {
-		if err := saveServerStates(); err != nil {
-			s.Log().WithField("error", err).Warn("failed to write server states to disk")
-		}
-	}()
-
-	// Reset the resource usage to 0 when the process fully stops so that all of the UI
-	// views in the Panel correctly display 0.
-	if state == environment.ProcessOfflineState {
-		s.resources.mu.Lock()
-		s.resources.Empty()
-		s.resources.mu.Unlock()
-
-		s.emitProcUsage()
-	}
-
-	// If server was in an online state, and is now in an offline state we should handle
-	// that as a crash event. In that scenario, check the last crash time, and the crash
-	// counter.
-	//
-	// In the event that we have passed the thresholds, don't do anything, otherwise
-	// automatically attempt to start the process back up for the user. This is done in a
-	// separate thread as to not block any actions currently taking place in the flow
-	// that called this function.
-	if (prevState == environment.ProcessStartingState || prevState == environment.ProcessRunningState) && s.GetState() == environment.ProcessOfflineState {
-		s.Log().Info("detected server as entering a crashed state; running crash handler")
-
-		go func(server *Server) {
-			if err := server.handleServerCrash(); err != nil {
-				if IsTooFrequentCrashError(err) {
-					server.Log().Info("did not restart server after crash; occurred too soon after the last")
-				} else {
-					server.Log().WithField("error", err).Error("failed to handle server crash")
-				}
-			}
-		}(s)
-	}
-
-	return nil
-}
-
-// Returns the current state of the server in a race-safe manner.
-func (s *Server) GetState() string {
-	return s.Proc().getInternalState()
-}
-
-// Determines if the server state is running or not. This is different than the
-// environment state, it is simply the tracked state from this daemon instance, and
-// not the response from Docker.
-func (s *Server) IsRunning() bool {
-	st := s.GetState()
-
-	return st == environment.ProcessRunningState || st == environment.ProcessStartingState
-}

server/update.go

@@ -3,9 +3,11 @@ package server
 import (
 	"encoding/json"
 	"github.com/buger/jsonparser"
+	"github.com/creasty/defaults"
 	"github.com/imdario/mergo"
 	"github.com/pkg/errors"
-	"github.com/pterodactyl/wings/environment"
+	"go.uber.org/zap"
+	"os"
 )
 
 // Merges data passed through in JSON form into the existing server object.
@@ -16,7 +18,7 @@ import (
 // it is up to the specific environment to determine what needs to happen when
 // that is the case.
 func (s *Server) UpdateDataStructure(data []byte, background bool) error {
-	src := new(Configuration)
+	src := new(Server)
 	if err := json.Unmarshal(data, src); err != nil {
 		return errors.WithStack(err)
 	}
@@ -24,41 +26,20 @@ func (s *Server) UpdateDataStructure(data []byte, background bool) error {
 	// Don't allow obviously corrupted data to pass through into this function. If the UUID
 	// doesn't match something has gone wrong and the API is attempting to meld this server
 	// instance into a totally different one, which would be bad.
-	if src.Uuid != "" && s.Id() != "" && src.Uuid != s.Id() {
+	if src.Uuid != "" && src.Uuid != s.Uuid {
 		return errors.New("attempting to merge a data stack with an invalid UUID")
 	}
 
-	// Grab a copy of the configuration to work on.
-	c := *s.Config()
-
-	// Lock our copy of the configuration since the deferred unlock will end up acting upon this
-	// new memory address rather than the old one. If we don't lock this, the deferred unlock will
-	// cause a panic when it goes to run. However, since we only update s.cfg at the end, if there
-	// is an error before that point we'll still properly unlock the original configuration for the
-	// server.
-	c.mu.Lock()
-
-	// Lock the server configuration while we're doing this merge to avoid anything
-	// trying to overwrite it or make modifications while we're sorting out what we
-	// need to do.
-	s.cfg.mu.Lock()
-	defer s.cfg.mu.Unlock()
-
-	// Merge the new data object that we have received with the existing server data object
-	// and then save it to the disk so it is persistent.
-	if err := mergo.Merge(&c, src, mergo.WithOverride); err != nil {
+	// Set the default values in the interface that we unmarshaled into.
+	if err := defaults.Set(src); err != nil {
 		return errors.WithStack(err)
 	}
 
-	// Don't explode if we're setting CPU limits to 0. Mergo sees that as an empty value
-	// so it won't override the value we've passed through in the API call. However, we can
-	// safely assume that we're passing through valid data structures here. I foresee this
-	// backfiring at some point, but until then...
-	//
-	// We'll go ahead and do this with swap as well.
-	c.Build.CpuLimit = src.Build.CpuLimit
-	c.Build.Swap = src.Build.Swap
-	c.Build.DiskSpace = src.Build.DiskSpace
+	// Merge the new data object that we have received with the existing server data object
+	// and then save it to the disk so it is persistent.
+	if err := mergo.Merge(s, src, mergo.WithOverride); err != nil {
+		return errors.WithStack(err)
+	}
 
 	// Mergo can't quite handle this boolean value correctly, so for now we'll just
 	// handle this edge case manually since none of the other data passed through in this
@@ -68,7 +49,7 @@ func (s *Server) UpdateDataStructure(data []byte, background bool) error {
 			return errors.WithStack(err)
 		}
 	} else {
-		c.Build.OOMDisabled = v
+		s.Container.OomDisabled = v
 	}
 
 	// Mergo also cannot handle this boolean value.
@@ -77,28 +58,25 @@ func (s *Server) UpdateDataStructure(data []byte, background bool) error {
 			return errors.WithStack(err)
 		}
 	} else {
-		c.Suspended = v
+		s.Suspended = v
 	}
 
 	// Environment and Mappings should be treated as a full update at all times, never a
 	// true patch, otherwise we can't know what we're passing along.
 	if src.EnvVars != nil && len(src.EnvVars) > 0 {
-		c.EnvVars = src.EnvVars
+		s.EnvVars = src.EnvVars
 	}
 
 	if src.Allocations.Mappings != nil && len(src.Allocations.Mappings) > 0 {
-		c.Allocations.Mappings = src.Allocations.Mappings
+		s.Allocations.Mappings = src.Allocations.Mappings
 	}
 
-	if src.Mounts != nil && len(src.Mounts) > 0 {
-		c.Mounts = src.Mounts
+	if _, err := s.WriteConfigurationToDisk(); err != nil {
+		return errors.WithStack(err)
 	}
 
-	// Update the configuration once we have a lock on the configuration object.
-	s.cfg = c
-
 	if background {
-		go s.runBackgroundActions()
+		s.runBackgroundActions()
 	}
 
 	return nil
@@ -111,22 +89,31 @@ func (s *Server) UpdateDataStructure(data []byte, background bool) error {
 // These tasks run in independent threads where relevant to speed up any updates
 // that need to happen.
 func (s *Server) runBackgroundActions() {
-	// Check if the s is now suspended, and if so and the process is not terminated
-	// yet, do it immediately.
-	if s.IsSuspended() && s.GetState() != environment.ProcessOfflineState {
-		s.Log().Info("server suspended with running process state, terminating now")
-
-		if err := s.Environment.WaitForStop(10, true); err != nil {
-			s.Log().WithField("error", err).Warn("failed to terminate server environment after suspension")
-		}
-	}
-
-	if !s.IsSuspended() {
 	// Update the environment in place, allowing memory and CPU usage to be adjusted
 	// on the fly without the user needing to reboot (theoretically).
-		s.Log().Info("performing server limit modification on-the-fly")
-		if err := s.Environment.InSituUpdate(); err != nil {
-			s.Log().WithField("error", err).Warn("failed to perform on-the-fly update of the server environment")
+	go func(server *Server) {
+		if err := server.Environment.InSituUpdate(); err != nil {
+			zap.S().Warnw(
+				"failed to perform in-situ update of server environment",
+				zap.String("server", server.Uuid),
+				zap.Error(err),
+			)
+		}
+	}(s)
+
+	// Check if the server is now suspended, and if so and the process is not terminated
+	// yet, do it immediately.
+	go func(server *Server) {
+		if server.Suspended && server.State != ProcessOfflineState {
+			zap.S().Infow("server suspended with running process state, terminating now", zap.String("server", server.Uuid))
+
+			if err := server.Environment.Terminate(os.Kill); err != nil {
+				zap.S().Warnw(
+					"failed to terminate server environment after seeing suspension",
+					zap.String("server", server.Uuid),
+					zap.Error(err),
+				)
 			}
 		}
+	}(s)
 }

sftp/server.go

@@ -1,14 +1,13 @@
 package sftp
 
 import (
-	"github.com/apex/log"
 	"github.com/pkg/errors"
 	"github.com/pterodactyl/sftp-server"
 	"github.com/pterodactyl/wings/api"
 	"github.com/pterodactyl/wings/config"
 	"github.com/pterodactyl/wings/server"
 	"go.uber.org/zap"
-	"regexp"
+	"path"
 )
 
 func Initialize(config *config.Configuration) error {
@@ -22,6 +21,8 @@ func Initialize(config *config.Configuration) error {
 			ReadOnly:         config.System.Sftp.ReadOnly,
 			BindAddress:      config.System.Sftp.Address,
 			BindPort:         config.System.Sftp.Port,
+			ServerDataFolder: path.Join(config.System.Data, "/servers"),
+			DisableDiskCheck: config.System.Sftp.DisableDiskChecking,
 		},
 		CredentialValidator: validateCredentials,
 		PathValidator: validatePath,
@@ -39,8 +40,8 @@ func Initialize(config *config.Configuration) error {
 	// Initialize the SFTP server in a background thread since this is
 	// a long running operation.
 	go func(instance *sftp_server.Server) {
-		if err := c.Initialize(); err != nil {
-			log.WithField("subsystem", "sftp").WithField("error", errors.WithStack(err)).Error("failed to initialize SFTP subsystem")
+		if err := c.Initalize(); err != nil {
+			zap.S().Named("sftp").Errorw("failed to initialize SFTP subsystem", zap.Error(errors.WithStack(err)))
 		}
 	}(c)
 
@@ -49,7 +50,7 @@ func Initialize(config *config.Configuration) error {
 
 func validatePath(fs sftp_server.FileSystem, p string) (string, error) {
 	s := server.GetServers().Find(func(server *server.Server) bool {
-		return server.Id() == fs.UUID
+		return server.Uuid == fs.UUID
 	})
 
 	if s == nil {
@@ -61,7 +62,7 @@ func validatePath(fs sftp_server.FileSystem, p string) (string, error) {
 
 func validateDiskSpace(fs sftp_server.FileSystem) bool {
 	s := server.GetServers().Find(func(server *server.Server) bool {
-		return server.Id() == fs.UUID
+		return server.Uuid == fs.UUID
 	})
 
 	if s == nil {
@@ -71,48 +72,21 @@ func validateDiskSpace(fs sftp_server.FileSystem) bool {
 	return s.Filesystem.HasSpaceAvailable()
 }
 
-var validUsernameRegexp = regexp.MustCompile(`^(?i)(.+)\.([a-z0-9]{8})$`)
-
 // Validates a set of credentials for a SFTP login aganist Pterodactyl Panel and returns
 // the server's UUID if the credentials were valid.
 func validateCredentials(c sftp_server.AuthenticationRequest) (*sftp_server.AuthenticationResponse, error) {
-	log.WithFields(log.Fields{"subsystem": "sftp", "username": c.User}).Debug("validating credentials for SFTP connection")
-
-	f := log.Fields{
-		"subsystem": "sftp",
-		"username":  c.User,
-		"ip":        c.IP,
-	}
-
-	// If the username doesn't meet the expected format that the Panel would even recognize just go ahead
-	// and bail out of the process here to avoid accidentially brute forcing the panel if a bot decides
-	// to connect to spam username attempts.
-	if !validUsernameRegexp.MatchString(c.User) {
-		log.WithFields(f).Warn("failed to validate user credentials (invalid format)")
-
-		return nil, new(sftp_server.InvalidCredentialsError)
-	}
-
 	resp, err := api.NewRequester().ValidateSftpCredentials(c)
 	if err != nil {
-		if sftp_server.IsInvalidCredentialsError(err) {
-			log.WithFields(f).Warn("failed to validate user credentials (invalid username or password)")
-		} else {
-			log.WithFields(f).Error("encountered an error while trying to validate user credentials")
-		}
-
 		return resp, err
 	}
 
 	s := server.GetServers().Find(func(server *server.Server) bool {
-		return server.Id() == resp.Server
+		return server.Uuid == resp.Server
 	})
 
 	if s == nil {
-		return resp, errors.New("no matching server with UUID found")
+		return resp, errors.New("no server found with that UUID")
 	}
 
-	s.Log().WithFields(f).Debug("credentials successfully validated and matched user to server instance")
-
 	return resp, err
 }

system.go

@@ -1,11 +1,11 @@
-package system
+package main
 
 import (
 	"github.com/docker/docker/pkg/parsers/kernel"
 	"runtime"
 )
 
-type Information struct {
+type SystemInformation struct {
 	Version       string `json:"version"`
 	KernelVersion string `json:"kernel_version"`
 	Architecture  string `json:"architecture"`
@@ -13,13 +13,13 @@ type Information struct {
 	CpuCount      int    `json:"cpu_count"`
 }
 
-func GetSystemInformation() (*Information, error) {
+func GetSystemInformation() (*SystemInformation, error) {
 	k, err := kernel.GetKernelVersion()
 	if err != nil {
 		return nil, err
 	}
 
-	s := &Information{
+	s := &SystemInformation{
 		Version:       Version,
 		KernelVersion: k.String(),
 		Architecture:  runtime.GOARCH,

system/const.go

@@ -1,6 +0,0 @@
-package system
-
-var (
-	// The current version of this software.
-	Version = "0.0.1"
-)

websocket.go

@@ -0,0 +1,417 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"github.com/gbrlsnchs/jwt/v3"
+	"github.com/google/uuid"
+	"github.com/gorilla/websocket"
+	"github.com/julienschmidt/httprouter"
+	"github.com/pkg/errors"
+	"github.com/pterodactyl/wings/config"
+	"github.com/pterodactyl/wings/server"
+	"go.uber.org/zap"
+	"net/http"
+	"os"
+	"strings"
+	"sync"
+	"time"
+)
+
+const (
+	AuthenticationSuccessEvent = "auth success"
+	TokenExpiringEvent         = "token expiring"
+	TokenExpiredEvent          = "token expired"
+	AuthenticationEvent        = "auth"
+	SetStateEvent              = "set state"
+	SendServerLogsEvent        = "send logs"
+	SendCommandEvent           = "send command"
+	ErrorEvent                 = "daemon error"
+)
+
+type WebsocketMessage struct {
+	// The event to perform. Should be one of the following that are supported:
+	//
+	// - status : Returns the server's power state.
+	// - logs : Returns the server log data at the time of the request.
+	// - power : Performs a power action aganist the server based the data.
+	// - command : Performs a command on a server using the data field.
+	Event string `json:"event"`
+
+	// The data to pass along, only used by power/command currently. Other requests
+	// should either omit the field or pass an empty value as it is ignored.
+	Args []string `json:"args,omitempty"`
+
+	// Is set to true when the request is originating from outside of the Daemon,
+	// otherwise set to false for outbound.
+	inbound bool
+}
+
+type WebsocketHandler struct {
+	Server     *server.Server
+	Mutex      sync.Mutex
+	Connection *websocket.Conn
+	JWT        *WebsocketTokenPayload
+}
+
+type WebsocketTokenPayload struct {
+	jwt.Payload
+	UserID      json.Number `json:"user_id"`
+	ServerUUID  string      `json:"server_uuid"`
+	Permissions []string    `json:"permissions"`
+}
+
+const (
+	PermissionConnect       = "connect"
+	PermissionSendCommand   = "send-command"
+	PermissionSendPower     = "send-power"
+	PermissionReceiveErrors = "receive-errors"
+)
+
+// Checks if the given token payload has a permission string.
+func (wtp *WebsocketTokenPayload) HasPermission(permission string) bool {
+	for _, k := range wtp.Permissions {
+		if k == permission {
+			return true
+		}
+	}
+
+	return false
+}
+
+var alg *jwt.HMACSHA
+
+// Validates the provided JWT against the known secret for the Daemon and returns the
+// parsed data.
+//
+// This function DOES NOT validate that the token is valid for the connected server, nor
+// does it ensure that the user providing the token is able to actually do things.
+func ParseJWT(token []byte) (*WebsocketTokenPayload, error) {
+	var payload WebsocketTokenPayload
+	if alg == nil {
+		alg = jwt.NewHS256([]byte(config.Get().AuthenticationToken))
+	}
+
+	_, err := jwt.Verify(token, alg, &payload)
+	if err != nil {
+		return nil, err
+	}
+
+	// Check the time of the JWT becoming valid does not exceed more than 15 seconds
+	// compared to the system time. This accounts for clock drift to some degree.
+	if time.Now().Unix()-payload.NotBefore.Unix() <= -15 {
+		return nil, errors.New("jwt violates nbf")
+	}
+
+	// Compare the expiration time of the token to the current system time. Include
+	// up to 15 seconds of clock drift, and if it has expired return an error and
+	// do not process the action.
+	if time.Now().Unix()-payload.ExpirationTime.Unix() > 15 {
+		return nil, errors.New("jwt violates exp")
+	}
+
+	if !payload.HasPermission(PermissionConnect) {
+		return nil, errors.New("not authorized to connect to this socket")
+	}
+
+	return &payload, nil
+}
+
+// Checks if the JWT is still valid.
+func (wsh *WebsocketHandler) TokenValid() error {
+	if wsh.JWT == nil {
+		return errors.New("no jwt present")
+	}
+
+	if time.Now().Unix()-wsh.JWT.ExpirationTime.Unix() > 15 {
+		return errors.New("jwt violates nbf")
+	}
+
+	if !wsh.JWT.HasPermission(PermissionConnect) {
+		return errors.New("jwt does not have connect permission")
+	}
+
+	if wsh.Server.Uuid != wsh.JWT.ServerUUID {
+		return errors.New("jwt server uuid mismatch")
+	}
+
+	return nil
+}
+
+// Handle a request for a specific server websocket. This will handle inbound requests as well
+// as ensure that any console output is also passed down the wire on the socket.
+func (rt *Router) routeWebsocket(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
+	c, err := rt.upgrader.Upgrade(w, r, nil)
+	if err != nil {
+		zap.S().Errorw("error upgrading websocket", zap.Error(errors.WithStack(err)))
+		http.Error(w, "failed to upgrade websocket", http.StatusInternalServerError)
+
+		return
+	}
+
+	// Make a ticker and completion channel that is used to continuously poll the
+	// JWT stored in the session to send events to the socket when it is expiring.
+	ticker := time.NewTicker(time.Second * 30)
+	done := make(chan bool)
+
+	// Whenever this function is complete, end the ticker, close out the channel,
+	// and then close the websocket connection.
+	defer func() {
+		ticker.Stop()
+		done <- true
+		c.Close()
+	}()
+
+	s := rt.GetServer(ps.ByName("server"))
+	handler := WebsocketHandler{
+		Server:     s,
+		Mutex:      sync.Mutex{},
+		Connection: c,
+		JWT:        nil,
+	}
+
+	handleOutput := func(data string) {
+		handler.SendJson(&WebsocketMessage{
+			Event: server.ConsoleOutputEvent,
+			Args:  []string{data},
+		})
+	}
+
+	handleServerStatus := func(data string) {
+		handler.SendJson(&WebsocketMessage{
+			Event: server.StatusEvent,
+			Args:  []string{data},
+		})
+	}
+
+	handleResourceUse := func(data string) {
+		handler.SendJson(&WebsocketMessage{
+			Event: server.StatsEvent,
+			Args:  []string{data},
+		})
+	}
+
+	s.AddListener(server.StatusEvent, &handleServerStatus)
+	defer s.RemoveListener(server.StatusEvent, &handleServerStatus)
+
+	s.AddListener(server.ConsoleOutputEvent, &handleOutput)
+	defer s.RemoveListener(server.ConsoleOutputEvent, &handleOutput)
+
+	s.AddListener(server.StatsEvent, &handleResourceUse)
+	defer s.RemoveListener(server.StatsEvent, &handleResourceUse)
+
+	// Sit here and check the time to expiration on the JWT every 30 seconds until
+	// the token has expired. If we are within 3 minutes of the token expiring, send
+	// a notice over the socket that it is expiring soon. If it has expired, send that
+	// notice as well.
+	go func() {
+		for {
+			select {
+			case <-done:
+				return
+			case <-ticker.C:
+				{
+					if handler.JWT != nil {
+						if handler.JWT.ExpirationTime.Unix()-time.Now().Unix() <= 0 {
+							handler.SendJson(&WebsocketMessage{Event: TokenExpiredEvent})
+						} else if handler.JWT.ExpirationTime.Unix()-time.Now().Unix() <= 180 {
+							handler.SendJson(&WebsocketMessage{Event: TokenExpiringEvent})
+						}
+					}
+				}
+			}
+		}
+	}()
+
+	for {
+		j := WebsocketMessage{inbound: true}
+
+		_, p, err := c.ReadMessage()
+		if err != nil {
+			if !websocket.IsCloseError(
+				err,
+				websocket.CloseNormalClosure,
+				websocket.CloseGoingAway,
+				websocket.CloseNoStatusReceived,
+				websocket.CloseServiceRestart,
+				websocket.CloseAbnormalClosure,
+			) {
+				zap.S().Errorw("error handling websocket message", zap.Error(err))
+			}
+			break
+		}
+
+		// Discard and JSON parse errors into the void and don't continue processing this
+		// specific socket request. If we did a break here the client would get disconnected
+		// from the socket, which is NOT what we want to do.
+		if err := json.Unmarshal(p, &j); err != nil {
+			continue
+		}
+
+		if err := handler.HandleInbound(j); err != nil {
+			handler.SendErrorJson(err)
+		}
+	}
+}
+
+// Perform a blocking send operation on the websocket since we want to avoid any
+// concurrent writes to the connection, which would cause a runtime panic and cause
+// the program to crash out.
+func (wsh *WebsocketHandler) SendJson(v interface{}) error {
+	// Do not send JSON down the line if the JWT on the connection is not
+	// valid!
+	if err := wsh.TokenValid(); err != nil {
+		return nil
+	}
+
+	return wsh.unsafeSendJson(v)
+}
+
+// Sends JSON over the websocket connection, ignoring the authentication state of the
+// socket user. Do not call this directly unless you are positive a response should be
+// sent back to the client!
+func (wsh *WebsocketHandler) unsafeSendJson(v interface{}) error {
+	wsh.Mutex.Lock()
+	defer wsh.Mutex.Unlock()
+
+	return wsh.Connection.WriteJSON(v)
+}
+
+// Sends an error back to the connected websocket instance by checking the permissions
+// of the token. If the user has the "receive-errors" grant we will send back the actual
+// error message, otherwise we just send back a standard error message.
+func (wsh *WebsocketHandler) SendErrorJson(err error) error {
+	wsh.Mutex.Lock()
+	defer wsh.Mutex.Unlock()
+
+	message := "an unexpected error was encountered while handling this request"
+	if wsh.JWT != nil {
+		if server.IsSuspendedError(err) || wsh.JWT.HasPermission(PermissionReceiveErrors) {
+			message = err.Error()
+		}
+	}
+
+	m, u := wsh.GetErrorMessage(message)
+
+	wsm := WebsocketMessage{Event: ErrorEvent}
+	wsm.Args = []string{m}
+
+	if !server.IsSuspendedError(err) {
+		zap.S().Errorw(
+			"an error was encountered in the websocket process",
+			zap.String("server", wsh.Server.Uuid),
+			zap.String("error_identifier", u.String()),
+			zap.Error(err),
+		)
+	}
+
+	return wsh.Connection.WriteJSON(wsm)
+}
+
+// Converts an error message into a more readable representation and returns a UUID
+// that can be cross-referenced to find the specific error that triggered.
+func (wsh *WebsocketHandler) GetErrorMessage(msg string) (string, uuid.UUID) {
+	u, _ := uuid.NewRandom()
+
+	m := fmt.Sprintf("Error Event [%s]: %s", u.String(), msg)
+
+	return m, u
+}
+
+// Handle the inbound socket request and route it to the proper server action.
+func (wsh *WebsocketHandler) HandleInbound(m WebsocketMessage) error {
+	if !m.inbound {
+		return errors.New("cannot handle websocket message, not an inbound connection")
+	}
+
+	if m.Event != AuthenticationEvent {
+		if err := wsh.TokenValid(); err != nil {
+			zap.S().Debugw("jwt token is no longer valid", zap.String("message", err.Error()))
+
+			wsh.unsafeSendJson(WebsocketMessage{
+				Event: ErrorEvent,
+				Args:  []string{"could not authenticate client: " + err.Error()},
+			})
+
+			return nil
+		}
+	}
+
+	switch m.Event {
+	case AuthenticationEvent:
+		{
+			token, err := ParseJWT([]byte(strings.Join(m.Args, "")))
+			if err != nil {
+				return err
+			}
+
+			if token.HasPermission(PermissionConnect) {
+				wsh.JWT = token
+			}
+
+			// On every authentication event, send the current server status back
+			// to the client. :)
+			wsh.Server.Emit(server.StatusEvent, wsh.Server.State)
+
+			wsh.unsafeSendJson(WebsocketMessage{
+				Event: AuthenticationSuccessEvent,
+				Args:  []string{},
+			})
+
+			return nil
+		}
+	case SetStateEvent:
+		{
+			if !wsh.JWT.HasPermission(PermissionSendPower) {
+				return nil
+			}
+
+			switch strings.Join(m.Args, "") {
+			case "start":
+				return wsh.Server.Environment.Start()
+			case "stop":
+				return wsh.Server.Environment.Stop()
+			case "restart":
+				return nil
+			case "kill":
+				return wsh.Server.Environment.Terminate(os.Kill)
+			}
+
+			return nil
+		}
+	case SendServerLogsEvent:
+		{
+			if running, _ := wsh.Server.Environment.IsRunning(); !running {
+				return nil
+			}
+
+			logs, err := wsh.Server.Environment.Readlog(1024 * 16)
+			if err != nil {
+				return err
+			}
+
+			for _, line := range logs {
+				wsh.SendJson(&WebsocketMessage{
+					Event: server.ConsoleOutputEvent,
+					Args:  []string{line},
+				})
+			}
+
+			return nil
+		}
+	case SendCommandEvent:
+		{
+			if !wsh.JWT.HasPermission(PermissionSendCommand) {
+				return nil
+			}
+
+			if wsh.Server.State == server.ProcessOfflineState {
+				return nil
+			}
+
+			return wsh.Server.Environment.SendCommand(strings.Join(m.Args, ""))
+		}
+	}
+
+	return nil
+}

wings.go

@@ -1,9 +1,221 @@
 package main
 
 import (
-	"github.com/pterodactyl/wings/cmd"
+	"crypto/tls"
+	"flag"
+	"fmt"
+	"github.com/gorilla/websocket"
+	"github.com/pkg/errors"
+	"github.com/pterodactyl/wings/config"
+	"github.com/pterodactyl/wings/server"
+	"github.com/pterodactyl/wings/sftp"
+	"github.com/remeh/sizedwaitgroup"
+	"go.uber.org/zap"
+	"net/http"
+	"os"
 )
 
+var configPath = "config.yml"
+var debug = false
+
+// Entrypoint for the Wings application. Configures the logger and checks any
+// flags that were passed through in the boot arguments.
 func main() {
-	cmd.Execute()
+	flag.StringVar(&configPath, "config", "config.yml", "set the location for the configuration file")
+	flag.BoolVar(&debug, "debug", false, "pass in order to run wings in debug mode")
+
+	flag.Parse()
+
+	c, err := config.ReadConfiguration(configPath)
+	if err != nil {
+		panic(err)
+		return
+	}
+
+	if debug {
+		c.Debug = true
+	}
+
+	printLogo()
+	if err := configureLogging(c.Debug); err != nil {
+		panic(err)
+	}
+
+	zap.S().Infof("using configuration from path: %s", configPath)
+	if c.Debug {
+		zap.S().Debugw("running in debug mode")
+		zap.S().Infow("certificate checking is disabled")
+
+		http.DefaultTransport.(*http.Transport).TLSClientConfig = &tls.Config{
+			InsecureSkipVerify: true,
+		}
+	}
+
+	config.Set(c)
+	config.SetDebugViaFlag(debug)
+
+	zap.S().Infof("checking for pterodactyl system user \"%s\"", c.System.User)
+	if su, err := c.EnsurePterodactylUser(); err != nil {
+		zap.S().Panicw("failed to create pterodactyl system user", zap.Error(err))
+		return
+	} else {
+		zap.S().Infow("configured system user", zap.String("username", su.Username), zap.String("uid", su.Uid), zap.String("gid", su.Gid))
+	}
+
+	zap.S().Infow("beginnning file permission setting on server data directories")
+	if err := c.EnsureFilePermissions(); err != nil {
+		zap.S().Errorw("failed to properly chown data directories", zap.Error(err))
+	} else {
+		zap.S().Infow("finished ensuring file permissions")
+	}
+
+	if err := server.LoadDirectory("data/servers", &c.System); err != nil {
+		zap.S().Fatalw("failed to load server configurations", zap.Error(errors.WithStack(err)))
+		return
+	}
+
+	if err := ConfigureDockerEnvironment(&c.Docker); err != nil {
+		zap.S().Fatalw("failed to configure docker environment", zap.Error(errors.WithStack(err)))
+		os.Exit(1)
+	}
+
+	if err := c.WriteToDisk(); err != nil {
+		zap.S().Errorw("failed to save configuration to disk", zap.Error(errors.WithStack(err)))
+	}
+
+	// Just for some nice log output.
+	for _, s := range server.GetServers().All() {
+		zap.S().Infow("loaded configuration for server", zap.String("server", s.Uuid))
+	}
+
+	// Create a new WaitGroup that limits us to 4 servers being bootstrapped at a time
+	// on Wings. This allows us to ensure the environment exists, write configurations,
+	// and reboot processes without causing a slow-down due to sequential booting.
+	wg := sizedwaitgroup.New(4)
+
+	for _, serv := range server.GetServers().All() {
+		wg.Add()
+
+		go func(s *server.Server) {
+			defer wg.Done()
+
+			// Create a server environment if none exists currently. This allows us to recover from Docker
+			// being reinstalled on the host system for example.
+			zap.S().Infow("ensuring envrionment exists", zap.String("server", s.Uuid))
+			if err := s.Environment.Create(); err != nil {
+				zap.S().Errorw("failed to create an environment for server", zap.String("server", s.Uuid), zap.Error(err))
+			}
+
+			if r, err := s.Environment.IsRunning(); err != nil {
+				zap.S().Errorw("error checking server environment status", zap.String("server", s.Uuid), zap.Error(err))
+			} else if r {
+				// If the server is currently running on Docker, mark the process as being in that state.
+				// We never want to stop an instance that is currently running external from Wings since
+				// that is a good way of keeping things running even if Wings gets in a very corrupted state.
+				zap.S().Infow("detected server is running, re-attaching to process", zap.String("server", s.Uuid))
+				if err := s.Sync(); err != nil {
+					zap.S().Errorw("failed to sync server state, cannot mark as running", zap.String("server", s.Uuid), zap.Error(errors.WithStack(err)))
+				} else {
+					s.SetState(server.ProcessRunningState)
+
+					// If we cannot attach to the environment go ahead and mark the processs as being offline.
+					if err := s.Environment.Attach(); err != nil {
+						zap.S().Warnw("error attaching to server environment", zap.String("server", s.Uuid), zap.Error(err))
+						s.SetState(server.ProcessOfflineState)
+					}
+				}
+			} else if !r {
+				// If the server is not in a running state right now but according to the configuration it
+				// should be, we want to go ahead and restart the instance.
+				if s.State == server.ProcessRunningState || s.State == server.ProcessStartingState {
+					zap.S().Infow(
+						"server state does not match last recorded state in configuration, starting instance now",
+						zap.String("server", s.Uuid),
+					)
+
+					if err := s.Environment.Start(); err != nil {
+						zap.S().Warnw(
+							"failed to put server instance back in running state",
+							zap.String("server", s.Uuid),
+							zap.Error(errors.WithStack(err)),
+						)
+					}
+				} else {
+					if s.State == "" {
+						// Addresses potentially invalid data in the stored file that can cause Wings to lose
+						// track of what the actual server state is.
+						s.SetState(server.ProcessOfflineState)
+					}
+				}
+			}
+		}(serv)
+	}
+
+	// Wait until all of the servers are ready to go before we fire up the HTTP server.
+	wg.Wait()
+
+	// If the SFTP subsystem should be started, do so now.
+	if c.System.Sftp.UseInternalSystem {
+		sftp.Initialize(c)
+	}
+
+	r := &Router{
+		token: c.AuthenticationToken,
+		upgrader: websocket.Upgrader{
+			// Ensure that the websocket request is originating from the Panel itself,
+			// and not some other location.
+			CheckOrigin: func(r *http.Request) bool {
+				return r.Header.Get("Origin") == c.PanelLocation
+			},
+		},
+	}
+
+	router := r.ConfigureRouter()
+	zap.S().Infow("configuring webserver", zap.Bool("ssl", c.Api.Ssl.Enabled), zap.String("host", c.Api.Host), zap.Int("port", c.Api.Port))
+
+	addr := fmt.Sprintf("%s:%d", c.Api.Host, c.Api.Port)
+	if c.Api.Ssl.Enabled {
+		if err := http.ListenAndServeTLS(addr, c.Api.Ssl.CertificateFile, c.Api.Ssl.KeyFile, router); err != nil {
+			zap.S().Fatalw("failed to configure HTTPS server", zap.Error(err))
+		}
+	} else {
+		if err := http.ListenAndServe(addr, router); err != nil {
+			zap.S().Fatalw("failed to configure HTTP server", zap.Error(err))
+		}
+	}
+}
+
+// Configures the global logger for Zap so that we can call it from any location
+// in the code without having to pass around a logger instance.
+func configureLogging(debug bool) error {
+	cfg := zap.NewProductionConfig()
+	if debug {
+		cfg = zap.NewDevelopmentConfig()
+	}
+
+	cfg.Encoding = "console"
+	cfg.OutputPaths = []string{
+		"stdout",
+	}
+
+	logger, err := cfg.Build()
+	if err != nil {
+		return err
+	}
+
+	zap.ReplaceGlobals(logger)
+
+	return nil
+}
+
+// Prints the wings logo, nothing special here!
+func printLogo() {
+	fmt.Println()
+	fmt.Println(`                     ____`)
+	fmt.Println(`__ Pterodactyl _____/___/_______ _______ ______`)
+	fmt.Println(`\_____\    \/\/    /   /       /  __   /   ___/`)
+	fmt.Println(`   \___\          /   /   /   /  /_/  /___   /`)
+	fmt.Println(`        \___/\___/___/___/___/___    /______/`)
+	fmt.Println(`                            /_______/ v` + Version)
+	fmt.Println()
 }