tracker/server/scrape.go
2013-07-12 00:36:24 -04:00

71 lines
1.6 KiB
Go

// Copyright 2013 The Chihaya Authors. All rights reserved.
// Use of this source code is governed by the BSD 2-Clause license,
// which can be found in the LICENSE file.
package server
import (
"errors"
"io"
"log"
"net/http"
"path"
"github.com/pushrax/chihaya/storage"
)
func (s *Server) serveScrape(w http.ResponseWriter, r *http.Request) {
passkey, _ := path.Split(r.URL.Path)
_, err := s.FindUser(passkey)
if err != nil {
fail(err, w, r)
return
}
pq, err := parseQuery(r.URL.RawQuery)
if err != nil {
fail(errors.New("Error parsing query"), w, r)
return
}
io.WriteString(w, "d")
writeBencoded(w, "files")
if pq.Infohashes != nil {
for _, infohash := range pq.Infohashes {
torrent, exists, err := s.dataStore.FindTorrent(infohash)
if err != nil {
log.Panicf("server: %s", err)
}
if exists {
writeBencoded(w, infohash)
writeScrapeInfo(w, torrent)
}
}
} else if infohash, exists := pq.Params["info_hash"]; exists {
torrent, exists, err := s.dataStore.FindTorrent(infohash)
if err != nil {
log.Panicf("server: %s", err)
}
if exists {
writeBencoded(w, infohash)
writeScrapeInfo(w, torrent)
}
}
io.WriteString(w, "e")
r.Close = true
w.Header().Add("Content-Type", "text/plain")
w.Header().Add("Connection", "close")
w.(http.Flusher).Flush()
}
func writeScrapeInfo(w io.Writer, torrent *storage.Torrent) {
io.WriteString(w, "d")
writeBencoded(w, "complete")
writeBencoded(w, len(torrent.Seeders))
writeBencoded(w, "downloaded")
writeBencoded(w, torrent.Snatches)
writeBencoded(w, "incomplete")
writeBencoded(w, len(torrent.Leechers))
io.WriteString(w, "e")
}