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 { 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", }) }