/** @since 0.8.5 */
public static void main(String[] args) {
if (args.length <= 0) {
System.err.println("Usage: MetaInfo files...");
return;
}
for (int i = 0; i < args.length; i++) {
InputStream in = null;
try {
in = new FileInputStream(args[i]);
MetaInfo meta = new MetaInfo(in);
System.out.println(args[i] + " InfoHash: " + I2PSnarkUtil.toHex(meta.getInfoHash()));
} catch (IOException ioe) {
System.err.println("Error in file " + args[i] + ": " + ioe);
} finally {
try {
if (in != null) in.close();
} catch (IOException ioe) {
}
}
}
}
/**
* @return always will be valid even in magnet mode
* @since 0.8.4
*/
public byte[] getInfoHash() {
// should always be the same
if (meta != null) return meta.getInfoHash();
return infoHash;
}
public void run() {
// XXX - Support other IPs
String announce = meta.getAnnounce();
String infoHash = urlencode(meta.getInfoHash());
String peerID = urlencode(coordinator.getID());
long uploaded = coordinator.getUploaded();
long downloaded = coordinator.getDownloaded();
long left = coordinator.getLeft();
boolean completed = (left == 0);
try {
boolean started = false;
while (!started) {
try {
// Send start.
TrackerInfo info =
doRequest(announce, infoHash, peerID, uploaded, downloaded, left, STARTED_EVENT);
Iterator it = info.getPeers().iterator();
while (it.hasNext()) coordinator.addPeer((Peer) it.next());
started = true;
} catch (IOException ioe) {
// Probably not fatal (if it doesn't last to long...)
Snark.debug(
"WARNING: Could not contact tracker at '" + announce + "': " + ioe, Snark.WARNING);
}
if (!started && !stop) {
Snark.debug(" Retrying in one minute...", Snark.DEBUG);
try {
// Sleep one minutes...
Thread.sleep(60 * 1000);
} catch (InterruptedException interrupt) {
// ignore
}
}
}
while (!stop) {
try {
// Sleep some minutes...
Thread.sleep(SLEEP * 60 * 1000);
} catch (InterruptedException interrupt) {
// ignore
}
if (stop) break;
uploaded = coordinator.getUploaded();
downloaded = coordinator.getDownloaded();
left = coordinator.getLeft();
// First time we got a complete download?
String event;
if (!completed && left == 0) {
completed = true;
event = COMPLETED_EVENT;
} else event = NO_EVENT;
// Only do a request when necessary.
if (event == COMPLETED_EVENT
|| coordinator.needPeers()
|| System.currentTimeMillis() > lastRequestTime + interval) {
try {
TrackerInfo info =
doRequest(announce, infoHash, peerID, uploaded, downloaded, left, event);
Iterator it = info.getPeers().iterator();
while (it.hasNext()) coordinator.addPeer((Peer) it.next());
} catch (IOException ioe) {
// Probably not fatal (if it doesn't last to long...)
Snark.debug(
"WARNING: Could not contact tracker at '" + announce + "': " + ioe, Snark.WARNING);
}
}
}
} catch (Throwable t) {
Snark.debug("TrackerClient: " + t, Snark.ERROR);
t.printStackTrace();
} finally {
try {
TrackerInfo info =
doRequest(announce, infoHash, peerID, uploaded, downloaded, left, STOPPED_EVENT);
} catch (IOException ioe) {
/* ignored */
}
}
}
/**
* multitorrent
*
* @param baseFile if null, use rootDir/torrentName; if non-null, use it instead
* @throws RuntimeException via fatal()
* @since 0.9.11
*/
public Snark(
I2PSnarkUtil util,
String torrent,
String ip,
int user_port,
StorageListener slistener,
CoordinatorListener clistener,
CompleteListener complistener,
PeerCoordinatorSet peerCoordinatorSet,
ConnectionAcceptor connectionAcceptor,
boolean start,
String rootDir,
File baseFile) {
if (slistener == null) slistener = this;
completeListener = complistener;
_util = util;
_log = util.getContext().logManager().getLog(Snark.class);
_peerCoordinatorSet = peerCoordinatorSet;
acceptor = connectionAcceptor;
this.torrent = torrent;
this.rootDataDir = new File(rootDir);
stopped = true;
activity = "Network setup";
id = generateID();
if (_log.shouldLog(Log.INFO)) _log.info("My peer id: " + PeerID.idencode(id));
/*
* Don't start a tunnel if the torrent isn't going to be started.
* If we are starting,
* startTorrent() will force a connect.
*
boolean ok = util.connect();
if (!ok) fatal("Unable to connect to I2P");
I2PServerSocket serversocket = util.getServerSocket();
if (serversocket == null)
fatal("Unable to listen for I2P connections");
else {
Destination d = serversocket.getManager().getSession().getMyDestination();
debug("Listening on I2P destination " + d.toBase64() + " / " + d.calculateHash().toBase64(), NOTICE);
}
*/
// Figure out what the torrent argument represents.
File f = null;
InputStream in = null;
byte[] x_infoHash = null;
try {
f = new File(torrent);
if (f.exists()) in = new FileInputStream(f);
else {
/**
* ** No, we don't ever fetch a torrent file this way and we don't want to block in the
* constructor activity = "Getting torrent"; File torrentFile = _util.get(torrent, 3); if
* (torrentFile == null) { fatal("Unable to fetch " + torrent); if (false) return; // never
* reached - fatal(..) throws } else { torrentFile.deleteOnExit(); in = new
* FileInputStream(torrentFile); } ***
*/
throw new IOException("not found");
}
meta = new MetaInfo(in);
x_infoHash = meta.getInfoHash();
} catch (IOException ioe) {
// OK, so it wasn't a torrent metainfo file.
if (f != null && f.exists())
if (ip == null)
fatal(
"'"
+ torrent
+ "' exists,"
+ " but is not a valid torrent metainfo file."
+ System.getProperty("line.separator"),
ioe);
else fatal("I2PSnark does not support creating and tracking a torrent at the moment");
/*
{
// Try to create a new metainfo file
debug
("Trying to create metainfo torrent for '" + torrent + "'",
NOTICE);
try
{
activity = "Creating torrent";
storage = new Storage
(f, "http://" + ip + ":" + port + "/announce", slistener);
storage.create();
meta = storage.getMetaInfo();
}
catch (IOException ioe2)
{
fatal("Could not create torrent for '" + torrent + "'", ioe2);
}
}
*/
else fatal("Cannot open '" + torrent + "'", ioe);
} catch (OutOfMemoryError oom) {
fatal("ERROR - Out of memory, cannot create torrent " + torrent + ": " + oom.getMessage());
} finally {
if (in != null)
try {
in.close();
} catch (IOException ioe) {
}
}
infoHash = x_infoHash; // final
if (_log.shouldLog(Log.INFO)) _log.info(meta.toString());
// When the metainfo torrent was created from an existing file/dir
// it already exists.
if (storage == null) {
try {
activity = "Checking storage";
boolean shouldPreserve =
completeListener != null && completeListener.getSavedPreserveNamesSetting(this);
if (baseFile == null) {
String base = meta.getName();
if (!shouldPreserve) base = Storage.filterName(base);
if (_util.getFilesPublic()) baseFile = new File(rootDataDir, base);
else baseFile = new SecureFile(rootDataDir, base);
}
storage = new Storage(_util, baseFile, meta, slistener, shouldPreserve);
if (completeListener != null) {
storage.check(
completeListener.getSavedTorrentTime(this),
completeListener.getSavedTorrentBitField(this));
} else {
storage.check();
}
// have to figure out when to reopen
// if (!start)
// storage.close();
} catch (IOException ioe) {
try {
storage.close();
} catch (IOException ioee) {
ioee.printStackTrace();
}
fatal("Could not check or create storage", ioe);
}
}
/*
* see comment above
*
activity = "Collecting pieces";
coordinator = new PeerCoordinator(id, meta, storage, clistener, this);
PeerCoordinatorSet set = PeerCoordinatorSet.instance();
set.add(coordinator);
ConnectionAcceptor acceptor = ConnectionAcceptor.instance();
acceptor.startAccepting(set, serversocket);
trackerclient = new TrackerClient(meta, coordinator);
*/
savedUploaded = (completeListener != null) ? completeListener.getSavedUploaded(this) : 0;
if (start) startTorrent();
}
