136 lines
3.9 KiB
Go
136 lines
3.9 KiB
Go
package universal
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import (
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"io"
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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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"sync"
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"github.com/debridmediamanager.com/zurg/internal/config"
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"github.com/debridmediamanager.com/zurg/internal/dav"
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intHttp "github.com/debridmediamanager.com/zurg/internal/http"
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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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// HandleGetRequest handles a GET request universally for both WebDAV and HTTP
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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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isDav := true
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if strings.Contains(requestPath, "/http") {
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requestPath = strings.Replace(requestPath, "/http", "/", 1)
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isDav = false
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}
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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) <= 3 {
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if isDav {
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dav.HandlePropfindRequest(w, r, t, c, cache)
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} else {
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intHttp.HandleDirectoryListing(w, r, t, c, cache)
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}
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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 := t.FindAllTorrentsWithName(baseDirectory, torrentName)
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if torrents == nil {
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log.Println("Cannot find torrent", requestPath)
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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 (get)", requestPath)
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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 (get)", 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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if !file.Unavailable {
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log.Println("Cannot unrestrict link", link, filenameV2)
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t.HideTheFile(torrent, file)
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}
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http.Redirect(w, r, "https://send.nukes.wtf/tDeTd0", http.StatusFound)
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} else if resp.Filename != filenameV2 {
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actualExt := filepath.Ext(resp.Filename)
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expectedExt := filepath.Ext(filenameV2)
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if actualExt != expectedExt {
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log.Println("File extension mismatch", resp.Filename, filenameV2)
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} else {
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log.Println("Filename mismatch", resp.Filename, filenameV2)
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}
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} else {
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cache.Add(requestPath, resp.Download)
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streamFileToResponse(resp.Download, w)
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}
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}
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func streamFileToResponse(url string, w http.ResponseWriter) {
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resp, err := http.Get(url) // HTTP/2 is used by default if the server supports it
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if err != nil {
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log.Println("Error downloading file:", err)
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http.Error(w, "Error downloading file", http.StatusInternalServerError)
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return
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}
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defer resp.Body.Close()
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if resp.StatusCode != http.StatusOK {
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log.Printf("Received a non-OK status code: %d", resp.StatusCode)
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http.Error(w, "Error downloading file", http.StatusInternalServerError)
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return
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}
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// Parallelize header copying to reduce waiting time
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var wg sync.WaitGroup
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wg.Add(1)
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go func() {
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defer wg.Done()
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for k, vv := range resp.Header {
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for _, v := range vv {
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w.Header().Add(k, v)
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}
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}
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}()
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// If Content-Length is available from the original response, set it
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if val, ok := resp.Header["Content-Length"]; ok {
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w.Header().Set("Content-Length", val[0])
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}
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// Wait for the header copying to complete
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// Stream the response with a buffer for better performance
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bufferSize := 32 * 1024 // 16KB buffer
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buf := make([]byte, bufferSize)
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wg.Wait()
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io.CopyBuffer(w, resp.Body, buf)
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}
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