wings/router/router_server_files.go
2020-07-18 10:16:40 -07:00

320 lines
7.1 KiB
Go

package router
import (
"bufio"
"context"
"github.com/gin-gonic/gin"
"github.com/pterodactyl/wings/server"
"golang.org/x/sync/errgroup"
"net/http"
"net/url"
"os"
"path"
"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:
return s.Filesystem.Rename(pf, pt)
}
})
}
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 {
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 specififed 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 {
TrackedServerError(err, s).AbortWithServerError(c)
return
}
c.Status(http.StatusNoContent)
}