Add option for http mount
This commit is contained in:
Ben Sarmiento
211
internal/http/get.go
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211
internal/http/get.go
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@@ -0,0 +1,211 @@
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package http
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import (
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"fmt"
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"log"
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"net/http"
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"path"
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"path/filepath"
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"strings"
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"github.com/debridmediamanager.com/zurg/internal/config"
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"github.com/debridmediamanager.com/zurg/internal/torrent"
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"github.com/debridmediamanager.com/zurg/pkg/davextra"
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"github.com/debridmediamanager.com/zurg/pkg/realdebrid"
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"github.com/hashicorp/golang-lru/v2/expirable"
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)
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func HandleGetRequest(w http.ResponseWriter, r *http.Request, t *torrent.TorrentManager, c config.ConfigInterface, cache *expirable.LRU[string, string]) {
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requestPath := path.Clean(r.URL.Path)
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requestPath = strings.Replace(requestPath, "/http", "/", 1)
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if requestPath == "/favicon.ico" {
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return
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}
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segments := strings.Split(requestPath, "/")
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// If there are less than 3 segments, return an error or adjust as needed
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if len(segments) < 4 {
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HandleDirectoryListing(w, r, t, c, cache)
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return
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}
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if data, exists := cache.Get(requestPath); exists {
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http.Redirect(w, r, data, http.StatusFound)
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return
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}
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baseDirectory := segments[len(segments)-3]
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torrentName := segments[len(segments)-2]
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filename := segments[len(segments)-1]
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torrents := findAllTorrentsWithName(t, baseDirectory, torrentName)
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if torrents == nil {
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log.Println("Cannot find torrent", torrentName)
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http.Error(w, "Cannot find file", http.StatusNotFound)
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return
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}
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filenameV2, linkFragment := davextra.ExtractLinkFragment(filename)
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torrent, file := getFile(torrents, filenameV2, linkFragment)
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if file == nil {
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log.Println("Cannot find file", filename)
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http.Error(w, "Cannot find file", http.StatusNotFound)
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return
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}
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if file.Link == "" {
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log.Println("Link not found", filename)
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http.Error(w, "Cannot find file", http.StatusNotFound)
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return
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}
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link := file.Link
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unrestrictFn := func() (*realdebrid.UnrestrictResponse, error) {
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return realdebrid.UnrestrictLink(c.GetToken(), link)
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}
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resp := realdebrid.RetryUntilOk(unrestrictFn)
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if resp == nil {
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// TODO: Readd the file
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// when unrestricting fails, it means the file is not available anymore, but still in their database
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// if it's the only file, tough luck
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// if it's the only file, try to readd it
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// delete the old one, add a new one
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log.Println("Cannot unrestrict link", link, filenameV2)
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t.MarkFileAsDeleted(torrent, file)
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http.Error(w, "Cannot find file", http.StatusNotFound)
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return
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}
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if resp.Filename != filenameV2 {
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// TODO: Redo the logic to handle mismatch
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// [SRS] Pokemon S22E01-35 1080p WEBRip AAC 2.0 x264 CC.rar
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// Pokemon.S22E24.The.Secret.Princess.DUBBED.1080p.WEBRip.AAC.2.0.x264-SRS.mkv
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// Action: schedule a "cleanup" job for the parent torrent
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// If the file extension changed, that means it's a different file
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log.Println("Filename mismatch", resp.Filename, filenameV2)
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}
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cache.Add(requestPath, resp.Download)
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http.Redirect(w, r, resp.Download, http.StatusFound)
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}
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// getFile finds a link by a fragment, it might be wrong
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func getFile(torrents []torrent.Torrent, filename, fragment string) (*torrent.Torrent, *torrent.File) {
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for t := range torrents {
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for f, file := range torrents[t].SelectedFiles {
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fname := filepath.Base(file.Path)
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if filename == fname && strings.HasPrefix(file.Link, fmt.Sprintf("https://real-debrid.com/d/%s", fragment)) {
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return &torrents[t], &torrents[t].SelectedFiles[f]
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}
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}
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}
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return nil, nil
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}
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func findAllTorrentsWithName(t *torrent.TorrentManager, directory, torrentName string) []torrent.Torrent {
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matchingTorrents := make([]torrent.Torrent, 0, 10)
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torrents := t.GetByDirectory(directory)
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for i := range torrents {
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if torrents[i].Name == torrentName || strings.HasPrefix(torrents[i].Name, torrentName) {
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matchingTorrents = append(matchingTorrents, torrents[i])
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}
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}
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return matchingTorrents
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}
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func HandleDirectoryListing(w http.ResponseWriter, r *http.Request, t *torrent.TorrentManager, c config.ConfigInterface, cache *expirable.LRU[string, string]) {
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requestPath := path.Clean(r.URL.Path)
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if data, exists := cache.Get(requestPath); exists {
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w.Header().Set("Content-Type", "text/html; charset=\"utf-8\"")
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w.WriteHeader(http.StatusOK)
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fmt.Fprint(w, data)
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return
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}
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var output *string
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var err error
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filteredSegments := removeEmptyStrings(strings.Split(requestPath, "/"))
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switch {
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case len(filteredSegments) == 1:
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output, err = handleRoot(w, r, c)
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case len(filteredSegments) == 2:
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output, err = handleListOfTorrents(requestPath, w, r, t, c)
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case len(filteredSegments) == 3:
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output, err = handleSingleTorrent(requestPath, w, r, t)
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case len(filteredSegments) > 3:
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HandleGetRequest(w, r, t, c, cache)
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default:
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writeHTTPError(w, "Not Found", http.StatusNotFound)
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return
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}
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if err != nil {
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log.Printf("Error processing request: %v\n", err)
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writeHTTPError(w, "Server error", http.StatusInternalServerError)
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return
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}
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if output != nil {
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cache.Add(requestPath, *output)
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w.Header().Set("Content-Type", "text/html; charset=\"utf-8\"")
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w.WriteHeader(http.StatusOK)
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fmt.Fprint(w, *output)
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}
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}
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func handleRoot(w http.ResponseWriter, r *http.Request, c config.ConfigInterface) (*string, error) {
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htmlDoc := "<ul>"
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for _, directory := range c.GetDirectories() {
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htmlDoc += fmt.Sprintf("<li><a href=\"/http/%s/\">%s</a></li>", directory, directory)
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}
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return &htmlDoc, nil
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}
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func handleListOfTorrents(requestPath string, w http.ResponseWriter, r *http.Request, t *torrent.TorrentManager, c config.ConfigInterface) (*string, error) {
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basePath := path.Base(requestPath)
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for _, directory := range c.GetDirectories() {
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if basePath == directory {
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torrents := t.GetByDirectory(basePath)
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resp, err := createMultiTorrentResponse(requestPath, torrents)
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if err != nil {
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return nil, fmt.Errorf("cannot read directory (%s): %w", basePath, err)
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}
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return &resp, nil
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}
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}
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return nil, fmt.Errorf("cannot find directory when generating list: %s", requestPath)
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}
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func handleSingleTorrent(requestPath string, w http.ResponseWriter, r *http.Request, t *torrent.TorrentManager) (*string, error) {
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fullDir := path.Dir(requestPath)
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directory := path.Base(fullDir)
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torrentName := path.Base(requestPath)
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sameNameTorrents := findAllTorrentsWithName(t, directory, torrentName)
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if len(sameNameTorrents) == 0 {
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return nil, fmt.Errorf("cannot find directory when generating single torrent: %s", requestPath)
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}
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resp, err := createSingleTorrentResponse(requestPath, sameNameTorrents)
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if err != nil {
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return nil, fmt.Errorf("cannot read directory (%s): %w", requestPath, err)
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}
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return &resp, nil
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}
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func writeHTTPError(w http.ResponseWriter, errorMessage string, statusCode int) {
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log.Println(errorMessage)
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http.Error(w, errorMessage, statusCode)
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}
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func removeEmptyStrings(slice []string) []string {
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var result []string
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for _, s := range slice {
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if s != "" {
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result = append(result, s)
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}
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}
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return result
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}
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69
internal/http/response.go
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69
internal/http/response.go
Normal file
@@ -0,0 +1,69 @@
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package http
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import (
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"fmt"
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"log"
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"path/filepath"
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"github.com/debridmediamanager.com/zurg/internal/torrent"
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"github.com/debridmediamanager.com/zurg/pkg/davextra"
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)
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// createMultiTorrentResponse creates a WebDAV response for a list of torrents
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func createMultiTorrentResponse(basePath string, torrents []torrent.Torrent) (string, error) {
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htmlDoc := "<ul>"
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seen := make(map[string]bool)
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for _, item := range torrents {
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if item.Progress != 100 {
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continue
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}
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if _, exists := seen[item.Name]; exists {
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continue
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}
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seen[item.Name] = true
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path := filepath.Join(basePath, item.Name)
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htmlDoc += fmt.Sprintf("<li><a href=\"%s/\">%s</a></li>", path, item.Name)
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}
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return htmlDoc, nil
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}
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func createSingleTorrentResponse(basePath string, torrents []torrent.Torrent) (string, error) {
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htmlDoc := "<ul>"
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nameAndLink := make(map[string]bool)
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finalName := make(map[string]bool)
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currentPath := filepath.Join(basePath)
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for _, torrent := range torrents {
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for _, file := range torrent.SelectedFiles {
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if file.Link == "" {
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log.Println("File has no link, skipping", file.Path)
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continue
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}
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filename := filepath.Base(file.Path)
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key := filename + file.Link
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if nameAndLink[key] {
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continue
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}
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nameAndLink[key] = true
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if finalName[filename] {
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fragment := davextra.GetLinkFragment(file.Link)
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filename = davextra.InsertLinkFragment(filename, fragment)
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}
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finalName[filename] = true
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filePath := filepath.Join(currentPath, filename)
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htmlDoc += fmt.Sprintf("<li><a href=\"%s\">%s</a></li>", filePath, filename)
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}
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}
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return htmlDoc, nil
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}
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