Finalize repair

internal/dav/listing.go

@@ -0,0 +1,110 @@
+package dav
+
+import (
+	"encoding/xml"
+	"fmt"
+	"log"
+	"net/http"
+	"path"
+	"strings"
+
+	"github.com/debridmediamanager.com/zurg/internal/config"
+	"github.com/debridmediamanager.com/zurg/internal/torrent"
+	"github.com/debridmediamanager.com/zurg/pkg/dav"
+	"github.com/hashicorp/golang-lru/v2/expirable"
+)
+
+func HandlePropfindRequest(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.Trim(requestPath, "/")
+
+	if data, exists := cache.Get(requestPath); exists {
+		w.Header().Set("Content-Type", "text/xml; charset=\"utf-8\"")
+		w.WriteHeader(http.StatusMultiStatus)
+		fmt.Fprint(w, data)
+		return
+	}
+
+	var output []byte
+	var err error
+
+	filteredSegments := strings.Split(requestPath, "/")
+
+	switch {
+	case len(filteredSegments) == 1 && filteredSegments[0] == "":
+		output, err = handleRoot(w, r, c)
+	case len(filteredSegments) == 1:
+		output, err = handleListOfTorrents(requestPath, w, r, t, c)
+	case len(filteredSegments) == 2:
+		output, err = handleSingleTorrent(requestPath, w, r, t)
+	default:
+		log.Println("Not Found", r.Method, requestPath)
+		writeHTTPError(w, "Not Found", http.StatusNotFound)
+		return
+	}
+
+	if err != nil {
+		log.Printf("Error processing request: %v\n", err)
+		writeHTTPError(w, "Server error", http.StatusInternalServerError)
+		return
+	}
+
+	if output != nil {
+		respBody := fmt.Sprintf("<?xml version=\"1.0\" encoding=\"utf-8\"?>\n%s\n", output)
+		cache.Add(requestPath, respBody)
+
+		w.Header().Set("Content-Type", "text/xml; charset=\"utf-8\"")
+		w.WriteHeader(http.StatusMultiStatus)
+		fmt.Fprint(w, respBody)
+	}
+}
+
+func handleRoot(w http.ResponseWriter, r *http.Request, c config.ConfigInterface) ([]byte, error) {
+	var responses []dav.Response
+	responses = append(responses, dav.Directory("/"))
+	for _, directory := range c.GetDirectories() {
+		responses = append(responses, dav.Directory("/"+directory))
+	}
+	rootResponse := dav.MultiStatus{
+		XMLNS:    "DAV:",
+		Response: responses,
+	}
+	return xml.Marshal(rootResponse)
+}
+
+func handleListOfTorrents(requestPath string, w http.ResponseWriter, r *http.Request, t *torrent.TorrentManager, c config.ConfigInterface) ([]byte, error) {
+	basePath := path.Base(requestPath)
+
+	for _, directory := range c.GetDirectories() {
+		if basePath == directory {
+			torrents := t.GetByDirectory(basePath)
+			resp, err := createMultiTorrentResponse("/"+basePath, torrents)
+			if err != nil {
+				return nil, fmt.Errorf("cannot read directory (%s): %w", basePath, err)
+			}
+			return xml.Marshal(resp)
+		}
+	}
+
+	return nil, fmt.Errorf("cannot find directory when generating list: %s", requestPath)
+}
+
+func handleSingleTorrent(requestPath string, w http.ResponseWriter, r *http.Request, t *torrent.TorrentManager) ([]byte, error) {
+	directory := path.Dir(requestPath)
+	torrentName := path.Base(requestPath)
+
+	sameNameTorrents := t.FindAllTorrentsWithName(directory, torrentName)
+	if len(sameNameTorrents) == 0 {
+		return nil, fmt.Errorf("cannot find directory when generating single torrent: %s", requestPath)
+	}
+
+	resp, err := createSingleTorrentResponse("/"+directory, sameNameTorrents)
+	if err != nil {
+		return nil, fmt.Errorf("cannot read directory (%s): %w", requestPath, err)
+	}
+	return xml.Marshal(resp)
+}
+
+func writeHTTPError(w http.ResponseWriter, errorMessage string, statusCode int) {
+	http.Error(w, errorMessage, statusCode)
+}