/** AKA scraping */
public TorrentStatus getStatus() throws IOException {
if (!isGetStatusSupported()) {
throw new IllegalStateException("Get status (scraping) not supported on this tracker");
}
String path = announceUrl.getFile();
int i = path.lastIndexOf('/');
path = path.substring(0, i + 1) + "scrape" + path.substring(i + ANNOUNCE.length() + 1);
GetMethod method = new GetMethod(path);
method.setRequestHeader("User-Agent", "BlackBits/0.1");
StringBuffer queryString =
new StringBuffer(announceUrl.getQuery() == null ? "" : announceUrl.getQuery());
queryString.append("info_hash=" + URLUtils.encode(infoHash.getBytes()));
method.setQueryString(queryString.toString());
httpClient.executeMethod(method);
BDecoder decoder = new BDecoder(method.getResponseBodyAsStream());
BDictionary dictionary = (BDictionary) decoder.decodeNext();
BDictionary files = (BDictionary) dictionary.get("files");
String key = (String) files.keySet().iterator().next();
BDictionary info = (BDictionary) files.get(key);
BLong seeders = (BLong) info.get("complete");
BLong leechers = (BLong) info.get("incomplete");
BLong numberOfDownloads = (BLong) info.get("downloaded");
return new TorrentStatus(seeders.intValue(), leechers.intValue(), numberOfDownloads.intValue());
}
private TrackerResponse sendEvent(
long uploadedBytes, long downloadedBytes, long bytesLeftToDownload, String event)
throws IOException, TrackerCommunicationException {
GetMethod method = new GetMethod(announceUrl.getFile());
method.setRequestHeader("User-Agent", "BlackBits/0.1");
StringBuffer queryString =
new StringBuffer(announceUrl.getQuery() == null ? "" : announceUrl.getQuery());
queryString.append("info_hash=" + URLUtils.encode(infoHash.getBytes()));
queryString.append("&peer_id=" + URLUtils.encode(localPeer.getId()));
queryString.append("&port=" + localPeer.getPort());
queryString.append("&uploaded=" + uploadedBytes);
queryString.append("&downloaded=" + downloadedBytes);
queryString.append("&left=" + bytesLeftToDownload);
if (event != null) {
queryString.append("&event=" + event);
}
if (localPeer.getAddress() != null) {
queryString.append("&ip=" + localPeer.getAddress());
}
method.setQueryString(queryString.toString());
httpClient.executeMethod(method);
return decodeResponse(method);
}