file metadata

internal/http/get.go

@@ -15,6 +15,85 @@ import (
 	"github.com/hashicorp/golang-lru/v2/expirable"
 )
 
+func HandleHeadRequest(w http.ResponseWriter, r *http.Request, t *torrent.TorrentManager, c config.ConfigInterface, cache *expirable.LRU[string, string]) {
+	requestPath := path.Clean(r.URL.Path)
+	requestPath = strings.Replace(requestPath, "/http", "/", 1)
+	if requestPath == "/favicon.ico" {
+		return
+	}
+
+	segments := strings.Split(requestPath, "/")
+	// If there are less than 3 segments, return an error or adjust as needed
+	if len(segments) < 4 {
+		log.Println("Method not implemented", r.Method, r.URL.Path)
+		http.Error(w, "Method not implemented", http.StatusMethodNotAllowed)
+		return
+	}
+
+	if data, exists := cache.Get("head:" + requestPath); exists {
+		splits := strings.Split(data, " ")
+		contentType := splits[0]
+		contentLength := splits[1]
+		w.Header().Set("Content-Type", contentType)
+		w.Header().Set("Content-Length", contentLength)
+		w.WriteHeader(http.StatusOK)
+		return
+	}
+
+	baseDirectory := segments[len(segments)-3]
+	torrentName := segments[len(segments)-2]
+	filename := segments[len(segments)-1]
+
+	torrents := findAllTorrentsWithName(t, baseDirectory, torrentName)
+	if torrents == nil {
+		log.Println("Cannot find torrent", torrentName, segments)
+		http.Error(w, "Cannot find file", http.StatusNotFound)
+		return
+	}
+
+	filenameV2, linkFragment := davextra.ExtractLinkFragment(filename)
+	_, file := getFile(torrents, filenameV2, linkFragment)
+	if file == nil {
+		log.Println("Cannot find file", filename, segments)
+		http.Error(w, "Cannot find file", http.StatusNotFound)
+		return
+	}
+	if file.Link == "" {
+		log.Println("Link not found", filename)
+		http.Error(w, "Cannot find file", http.StatusNotFound)
+		return
+	}
+	contentType := getContentMimeType(filename)
+	contentLength := fmt.Sprintf("%d", file.Bytes)
+	w.Header().Set("Content-Type", contentType)
+	w.Header().Set("Content-Length", contentLength)
+	cache.Add("head:"+requestPath, contentType+" "+contentLength)
+	w.WriteHeader(http.StatusOK)
+}
+
+func getContentMimeType(filePath string) string {
+	switch filepath.Ext(filePath) {
+	case ".mkv":
+		return "video/x-matroska"
+	case ".mp4":
+		return "video/mp4"
+	case ".avi":
+		return "video/x-msvideo"
+	case ".mp3":
+		return "audio/mpeg"
+	case ".rar":
+		return "application/x-rar-compressed"
+	case ".zip":
+		return "application/zip"
+	case ".7z":
+		return "application/x-7z-compressed"
+	case ".srt":
+		return "text/plain"
+	default:
+		return "application/octet-stream"
+	}
+}
+
 func HandleGetRequest(w http.ResponseWriter, r *http.Request, t *torrent.TorrentManager, c config.ConfigInterface, cache *expirable.LRU[string, string]) {
 	requestPath := path.Clean(r.URL.Path)
 	requestPath = strings.Replace(requestPath, "/http", "/", 1)

internal/net/router.go

@@ -18,6 +18,9 @@ func Router(mux *http.ServeMux, c config.ConfigInterface, t *torrent.TorrentMana
 		case http.MethodGet:
 			intHttp.HandleDirectoryListing(w, r, t, c, cache)
 
+		case http.MethodHead:
+			intHttp.HandleHeadRequest(w, r, t, c, cache)
+
 		default:
 			log.Println("Method not implemented", r.Method)
 			http.Error(w, "Method not implemented", http.StatusMethodNotAllowed)
@@ -36,7 +39,7 @@ func Router(mux *http.ServeMux, c config.ConfigInterface, t *torrent.TorrentMana
 			w.WriteHeader(http.StatusOK)
 
 		default:
-			log.Println("Method not implemented", r.Method)
+			log.Println("Method not implemented", r.Method, r.URL.Path)
 			http.Error(w, "Method not implemented", http.StatusMethodNotAllowed)
 		}
 	})

internal/torrent/manager.go

@@ -32,14 +32,43 @@ func (t *TorrentManager) refreshTorrents() {
 		}
 		t.checksum = checksum
 		t.cache.Purge()
-		t.torrents = t.getAll()
-		for _, torrent := range t.torrents {
-			go func(id string) {
-				t.workerPool <- true
-				t.getInfo(id)
-				<-t.workerPool
-				time.Sleep(1 * time.Second) // sleep for 1 second to avoid rate limiting
-			}(torrent.ID)
+
+		newTorrents := t.getAll()
+
+		// Identify removed torrents
+		for i := 0; i < len(t.torrents); i++ {
+			found := false
+			for _, newTorrent := range newTorrents {
+				if t.torrents[i].ID == newTorrent.ID {
+					found = true
+					break
+				}
+			}
+			if !found {
+				// Remove this torrent from the slice
+				t.torrents = append(t.torrents[:i], t.torrents[i+1:]...)
+				i-- // Decrement index since we modified the slice
+			}
+		}
+
+		// Identify and handle added torrents
+		for _, newTorrent := range newTorrents {
+			found := false
+			for _, torrent := range t.torrents {
+				if newTorrent.ID == torrent.ID {
+					found = true
+					break
+				}
+			}
+			if !found {
+				t.torrents = append(t.torrents, newTorrent)
+				go func(id string) {
+					t.workerPool <- true
+					t.getInfo(id)
+					<-t.workerPool
+					time.Sleep(1 * time.Second) // sleep for 1 second to avoid rate limiting
+				}(newTorrent.ID)
+			}
 		}
 	}
 }
@@ -193,6 +222,7 @@ func (t *TorrentManager) getInfo(torrentID string) *Torrent {
 		// TODO: This means some files have expired
 		// we need to 'fix' this torrent then, at least the missing selected files
 		log.Println("Some links has expired for", info.Name)
+
 		type Result struct {
 			Response *realdebrid.UnrestrictResponse
 		}

rclone.conf

@@ -1,4 +1,5 @@
 [zurg]
-type = webdav
-url = http://zurg:9999
-vendor = other
+type = http
+url = http://zurg:9999/http
+no_head = true
+no_slash = true