Allow others fuse option. (#19)

Signed-off-by: Antonio Navarro Perez <antnavper@gmail.com>

README.md

@@ -84,16 +84,17 @@ Run the program: `./distribyted-[VERSION]-[OS]-[ARCH]`
 
 Defaults are good enough for starters, but you can change them. Here is the output of `./distribyted -help`:
 
-```
+```text
 NAME:
    distribyted - Torrent client with on-demand file downloading as a filesystem.
 
 USAGE:
-   distribyted-v0.3.0-linux-amd64 [global options] [arguments...]
+   distribyted [global options] [arguments...]
 
 GLOBAL OPTIONS:
    --config value      YAML file containing distribyted configuration. (default: "./distribyted-data/config.yaml") [$DISTRIBYTED_CONFIG]
-   --http-port value  http port for web interface (default: 4444) [$DISTRIBYTED_HTTP_PORT]
+   --http-port value   HTTP port for web interface (default: 4444) [$DISTRIBYTED_HTTP_PORT]
+   --fuse-allow-other  Allow other users to acces to all fuse mountpoints. You need to add user_allow_other flag to /etc/fuse.conf file. (default: false) [$DISTRIBYTED_FUSE_ALLOW_OTHER]
    --help, -h          show help (default: false)
 ```
 

cmd/distribyted/main.go

@@ -20,6 +20,7 @@ import (
 
 const (
 	configFlag     = "config"
+	fuseAllowOther = "fuse-allow-other"
 	portFlag       = "http-port"
 )
 
@@ -38,12 +39,18 @@ func main() {
 				Name:    portFlag,
 				Value:   4444,
 				EnvVars: []string{"DISTRIBYTED_HTTP_PORT"},
-				Usage:   "http port for web interface",
+				Usage:   "HTTP port for web interface",
+			},
+			&cli.BoolFlag{
+				Name:    fuseAllowOther,
+				Value:   false,
+				EnvVars: []string{"DISTRIBYTED_FUSE_ALLOW_OTHER"},
+				Usage:   "Allow other users to access all fuse mountpoints. You need to add user_allow_other flag to /etc/fuse.conf file.",
 			},
 		},
 
 		Action: func(c *cli.Context) error {
-			err := load(c.String(configFlag), c.Int(portFlag))
+			err := load(c.String(configFlag), c.Int(portFlag), c.Bool(fuseAllowOther))
 			return err
 		},
 
@@ -63,7 +70,7 @@ func newCache(folder string) (*filecache.Cache, error) {
 	return filecache.NewCache(folder)
 }
 
-func load(configPath string, port int) error {
+func load(configPath string, port int, fuseAllowOther bool) error {
 	ch := config.NewHandler(configPath)
 
 	conf, err := ch.Get()
@@ -84,7 +91,7 @@ func load(configPath string, port int) error {
 	}
 
 	ss := stats.NewTorrent()
-	mountService := fuse.NewHandler(c, ss)
+	mountService := fuse.NewHandler(c, ss, fuseAllowOther)
 
 	sigChan := make(chan os.Signal)
 	signal.Notify(sigChan, os.Interrupt, syscall.SIGTERM)

config/model.go

@@ -9,6 +9,7 @@ type Root struct {
 }
 
 type MountPoint struct {
+	AllowOther bool   `yaml:"fuse-allow-other,omitempty"`
 	Path       string `yaml:"path"`
 	Torrents   []struct {
 		MagnetURI   string `yaml:"magnetUri,omitempty"`

fuse/handler.go

@@ -18,13 +18,16 @@ type Handler struct {
 	c *torrent.Client
 	s *stats.Torrent
 
+	fuseAllowOther bool
+
 	hosts map[string]*fuse.FileSystemHost
 }
 
-func NewHandler(c *torrent.Client, s *stats.Torrent) *Handler {
+func NewHandler(c *torrent.Client, s *stats.Torrent, fuseAllowOther bool) *Handler {
 	return &Handler{
 		c:              c,
 		s:              s,
+		fuseAllowOther: fuseAllowOther,
 		hosts:          make(map[string]*fuse.FileSystemHost),
 	}
 }
@@ -76,7 +79,13 @@ func (s *Handler) Mount(mpc *config.MountPoint, ef config.EventFunc) error {
 
 	// TODO improve error handling here
 	go func() {
-		ok := host.Mount(mpc.Path, nil)
+		var config []string
+
+		if mpc.AllowOther || s.fuseAllowOther {
+			config = append(config, "-o", "allow_other")
+		}
+
+		ok := host.Mount(mpc.Path, config)
 		if !ok {
 			log.WithField("path", mpc.Path).Error("error trying to mount filesystem")
 		}

templates/config_template.yaml

@@ -9,6 +9,8 @@ mountPoints:
   # Example mountpoint containing some multimedia files
   # For windows users: You can set here also a disk letter like X: or Z:
   - path: ./distribyted-data/mountpoints/multimedia
+    # Add this flag if you want to allow other users to access this fuse mountpoint. You need to add user_allow_other flag to /etc/fuse.conf file.
+    # fuse-allow-other: true
     torrents:
        # - torrentPath: /path/to/torrent/file.torrent
        - magnetUri: "magnet:?xt=urn:btih:c9e15763f722f23e98a29decdfae341b98d53056&dn=Cosmos+Laundromat&tr=udp%3A%2F%2Fexplodie.org%3A6969&tr=udp%3A%2F%2Ftracker.coppersurfer.tk%3A6969&tr=udp%3A%2F%2Ftracker.empire-js.us%3A1337&tr=udp%3A%2F%2Ftracker.leechers-paradise.org%3A6969&tr=udp%3A%2F%2Ftracker.opentrackr.org%3A1337&tr=wss%3A%2F%2Ftracker.btorrent.xyz&tr=wss%3A%2F%2Ftracker.fastcast.nz&tr=wss%3A%2F%2Ftracker.openwebtorrent.com&ws=https%3A%2F%2Fwebtorrent.io%2Ftorrents%2F&xs=https%3A%2F%2Fwebtorrent.io%2Ftorrents%2Fcosmos-laundromat.torrent"