Add base code to convert json data into a server object

This is not great code, but wow dealing with JSON is a nightmare in go.

go.mod

@@ -6,6 +6,7 @@ require (
 	github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78 // indirect
 	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/buger/jsonparser v0.0.0-20181115193947-bf1c66bbce23
 	github.com/containerd/fifo v0.0.0-20190226154929-a9fb20d87448 // indirect
 	github.com/docker/distribution v2.7.1+incompatible // indirect

go.sum

@@ -4,6 +4,8 @@ github.com/Microsoft/go-winio v0.4.7 h1:vOvDiY/F1avSWlCWiKJjdYKz2jVjTK3pWPHndeG4
 github.com/Microsoft/go-winio v0.4.7/go.mod h1:VhR8bwka0BXejwEJY73c50VrPtXAaKcyvVC4A4RozmA=
 github.com/Nvveen/Gotty v0.0.0-20120604004816-cd527374f1e5 h1:TngWCqHvy9oXAN6lEVMRuU21PR1EtLVZJmdB18Gu3Rw=
 github.com/Nvveen/Gotty v0.0.0-20120604004816-cd527374f1e5/go.mod h1:lmUJ/7eu/Q8D7ML55dXQrVaamCz2vxCfdQBasLZfHKk=
+github.com/asaskevich/govalidator v0.0.0-20190424111038-f61b66f89f4a h1:idn718Q4B6AGu/h5Sxe66HYVdqdGu2l9Iebqhi/AEoA=
+github.com/asaskevich/govalidator v0.0.0-20190424111038-f61b66f89f4a/go.mod h1:lB+ZfQJz7igIIfQNfa7Ml4HSf2uFQQRzpGGRXenZAgY=
 github.com/buger/jsonparser v0.0.0-20181115193947-bf1c66bbce23 h1:D21IyuvjDCshj1/qq+pCNd3VZOAEI9jy6Bi131YlXgI=
 github.com/buger/jsonparser v0.0.0-20181115193947-bf1c66bbce23/go.mod h1:bbYlZJ7hK1yFx9hf58LP0zeX7UjIGs20ufpu3evjr+s=
 github.com/containerd/fifo v0.0.0-20190226154929-a9fb20d87448 h1:PUD50EuOMkXVcpBIA/R95d56duJR9VxhwncsFbNnxW4=

http.go

@@ -8,6 +8,7 @@ import (
 	"github.com/buger/jsonparser"
 	"github.com/gorilla/websocket"
 	"github.com/julienschmidt/httprouter"
+	"github.com/pterodactyl/wings/installer"
 	"github.com/pterodactyl/wings/server"
 	"go.uber.org/zap"
 	"io"
@@ -391,6 +392,20 @@ func (rt *Router) routeServerSendCommand(w http.ResponseWriter, r *http.Request,
 	w.WriteHeader(http.StatusNoContent)
 }
 
+func (rt *Router) routeCreateServer(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
+	defer r.Body.Close()
+
+	err, inst := installer.New(rt.ReaderToBytes(r.Body))
+
+	if err != nil {
+		zap.S().Warnw("failed to validate the received data", zap.Error(err))
+	}
+
+	inst.Execute()
+
+	w.WriteHeader(http.StatusAccepted)
+}
+
 func (rt *Router) ReaderToBytes(r io.Reader) []byte {
 	buf := bytes.Buffer{}
 	buf.ReadFrom(r)
@@ -410,6 +425,7 @@ func (rt *Router) ConfigureRouter() *httprouter.Router {
 	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))

installer/installer.go

@@ -0,0 +1,99 @@
+package installer
+
+import (
+	"encoding/json"
+	"errors"
+	"github.com/asaskevich/govalidator"
+	"github.com/buger/jsonparser"
+	"github.com/pterodactyl/wings/server"
+	"go.uber.org/zap"
+)
+
+type Installer struct {
+	server *server.Server
+}
+
+// Validates the received data to ensure that all of the required fields
+// have been passed along in the request. This should be manually run before
+// calling Execute().
+func New(data []byte) (error, *Installer) {
+	if !govalidator.IsUUIDv4(getString(data, "uuid")) {
+		return errors.New("uuid provided was not in a valid format"), nil
+	}
+
+	if !govalidator.IsUUIDv4(getString(data, "service", "egg")) {
+		return errors.New("service egg provided was not in a valid format"), nil
+	}
+
+	s := &server.Server{
+		Uuid:        getString(data, "uuid"),
+		Suspended:   false,
+		State:       server.ProcessOfflineState,
+		Invocation:  "",
+		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"),
+		},
+		Allocations: &server.Allocations{
+			Mappings: make(map[string][]int),
+		},
+	}
+
+	s.Allocations.DefaultMapping.Ip = getString(data, "allocations", "default", "ip")
+	s.Allocations.DefaultMapping.Port = int(getInt(data, "allocations", "default", "port"))
+
+	jsonparser.ObjectEach(data, func(key []byte, value []byte, dataType jsonparser.ValueType, offset int) error {
+		s.EnvVars[string(key)] = string(value)
+
+		return nil
+	}, "environment")
+
+	jsonparser.ArrayEach(data, func(value []byte, dataType jsonparser.ValueType, offset int, err error) {
+		var dat map[string][]int
+		if err := json.Unmarshal(value, &dat); err != nil {
+			return
+		}
+
+		for i, k := range dat {
+			s.Allocations.Mappings[i] = k
+		}
+	}, "allocations", "mappings")
+
+	s.Container.Image = getString(data, "container", "image")
+
+	return nil, &Installer{
+		server: s,
+	}
+}
+
+// Returns the UUID associated with this installer instance.
+func (i *Installer) Uuid() string {
+	return i.server.Uuid
+}
+
+// Executes the installer process, creating the server and running through the
+// associated installation process based on the parameters passed through for
+// the server instance.
+func (i *Installer) Execute() error {
+	zap.S().Debugw("beginning installation process for server", zap.String("server", i.server.Uuid))
+
+	return nil
+}
+
+// Returns a string value from the JSON data provided.
+func getString(data []byte, key ...string) string {
+	value, _ := jsonparser.GetString(data, key...)
+
+	return value
+}
+
+// Returns an int value from the JSON data provided.
+func getInt(data []byte, key ...string) int64 {
+	value, _ := jsonparser.GetInt(data, key...)
+
+	return value
+}