protected boolean checkConnectionId(String client_address, long id) {
try {
random_mon.enter();
Long key = new Long(id);
connectionData data = (connectionData) connection_id_map.get(key);
if (data == null) {
// System.out.println( "TRTrackerServerProcessorUDP: rejected:" + id + ", data not found" );
return (false);
} else {
if (SystemTime.getMonotonousTime() - data.getTime() > CONNECTION_ID_LIFETIME) {
return (false);
}
}
boolean ok = data.getAddress().equals(client_address);
// System.out.println( "TRTrackerServerProcessorUDP: tested:" + id + "/" + client_address + "
// -> " + ok );
return (ok);
} finally {
random_mon.exit();
}
}
protected Object[] handleAnnounceAndScrape(
String client_ip_address, PRUDPPacketRequest request, int request_type) throws Exception {
if (!checkConnectionId(client_ip_address, request.getConnectionId())) {
return (null);
}
List hashbytes = new ArrayList();
HashWrapper peer_id = null;
int port = 0;
String event = null;
long uploaded = 0;
long downloaded = 0;
long left = 0;
int num_want = -1;
String key = null;
if (request_type == TRTrackerServerRequest.RT_ANNOUNCE) {
if (PRUDPPacketTracker.VERSION == 1) {
PRUDPPacketRequestAnnounce announce = (PRUDPPacketRequestAnnounce) request;
hashbytes.add(announce.getHash());
peer_id = new HashWrapper(announce.getPeerId());
port = announce.getPort();
int i_event = announce.getEvent();
switch (i_event) {
case PRUDPPacketRequestAnnounce.EV_STARTED:
{
event = "started";
break;
}
case PRUDPPacketRequestAnnounce.EV_STOPPED:
{
event = "stopped";
break;
}
case PRUDPPacketRequestAnnounce.EV_COMPLETED:
{
event = "completed";
break;
}
}
uploaded = announce.getUploaded();
downloaded = announce.getDownloaded();
left = announce.getLeft();
num_want = announce.getNumWant();
int i_ip = announce.getIPAddress();
if (i_ip != 0) {
client_ip_address = PRHelpers.intToAddress(i_ip);
}
} else {
PRUDPPacketRequestAnnounce2 announce = (PRUDPPacketRequestAnnounce2) request;
hashbytes.add(announce.getHash());
peer_id = new HashWrapper(announce.getPeerId());
port = announce.getPort();
int i_event = announce.getEvent();
switch (i_event) {
case PRUDPPacketRequestAnnounce.EV_STARTED:
{
event = "started";
break;
}
case PRUDPPacketRequestAnnounce.EV_STOPPED:
{
event = "stopped";
break;
}
case PRUDPPacketRequestAnnounce.EV_COMPLETED:
{
event = "completed";
break;
}
}
uploaded = announce.getUploaded();
downloaded = announce.getDownloaded();
left = announce.getLeft();
num_want = announce.getNumWant();
int i_ip = announce.getIPAddress();
if (i_ip != 0) {
client_ip_address = PRHelpers.intToAddress(i_ip);
}
key = "" + announce.getKey();
}
} else {
PRUDPPacketRequestScrape scrape = (PRUDPPacketRequestScrape) request;
hashbytes.addAll(scrape.getHashes());
}
Map[] root_out = new Map[1];
TRTrackerServerPeerImpl[] peer_out = new TRTrackerServerPeerImpl[1];
TRTrackerServerTorrentImpl torrent =
processTrackerRequest(
server,
"",
root_out,
peer_out,
request_type,
(byte[][]) hashbytes.toArray(new byte[0][0]),
null,
null,
peer_id,
false,
TRTrackerServerTorrentImpl.COMPACT_MODE_NONE,
key, // currently no "no_peer_id" / "compact" in the packet and anyway they aren't
// returned / key
event,
false,
port,
0,
0,
client_ip_address,
client_ip_address,
downloaded,
uploaded,
left,
num_want,
TRTrackerServerPeer.CRYPTO_NONE,
(byte) 1,
0,
null);
Map root = root_out[0];
if (request_type == TRTrackerServerRequest.RT_ANNOUNCE) {
if (PRUDPPacketTracker.VERSION == 1) {
PRUDPPacketReplyAnnounce reply = new PRUDPPacketReplyAnnounce(request.getTransactionId());
reply.setInterval(((Long) root.get("interval")).intValue());
List peers = (List) root.get("peers");
int[] addresses = new int[peers.size()];
short[] ports = new short[addresses.length];
for (int i = 0; i < addresses.length; i++) {
Map peer = (Map) peers.get(i);
addresses[i] = PRHelpers.addressToInt(new String((byte[]) peer.get("ip")));
ports[i] = (short) ((Long) peer.get("port")).shortValue();
}
reply.setPeers(addresses, ports);
return (new Object[] {reply, torrent});
} else {
PRUDPPacketReplyAnnounce2 reply = new PRUDPPacketReplyAnnounce2(request.getTransactionId());
reply.setInterval(((Long) root.get("interval")).intValue());
boolean local_scrape = client_ip_address.equals("127.0.0.1");
Map scrape_details = torrent.exportScrapeToMap("", client_ip_address, !local_scrape);
int seeders = ((Long) scrape_details.get("complete")).intValue();
int leechers = ((Long) scrape_details.get("incomplete")).intValue();
reply.setLeechersSeeders(leechers, seeders);
List peers = (List) root.get("peers");
int[] addresses = new int[peers.size()];
short[] ports = new short[addresses.length];
for (int i = 0; i < addresses.length; i++) {
Map peer = (Map) peers.get(i);
addresses[i] = PRHelpers.addressToInt(new String((byte[]) peer.get("ip")));
ports[i] = (short) ((Long) peer.get("port")).shortValue();
}
reply.setPeers(addresses, ports);
return (new Object[] {reply, torrent});
}
} else {
if (PRUDPPacketTracker.VERSION == 1) {
PRUDPPacketReplyScrape reply = new PRUDPPacketReplyScrape(request.getTransactionId());
/*
Long interval = (Long)root.get("interval");
if ( interval != null ){
reply.setInterval(interval.intValue());
}
*/
Map files = (Map) root.get("files");
byte[][] hashes = new byte[files.size()][];
int[] s_complete = new int[hashes.length];
int[] s_downloaded = new int[hashes.length];
int[] s_incomplete = new int[hashes.length];
Iterator it = files.keySet().iterator();
int pos = 0;
while (it.hasNext()) {
String hash_str = (String) it.next();
hashes[pos] = hash_str.getBytes(Constants.BYTE_ENCODING);
Map details = (Map) files.get(hash_str);
s_complete[pos] = ((Long) details.get("complete")).intValue();
s_incomplete[pos] = ((Long) details.get("incomplete")).intValue();
s_downloaded[pos] = ((Long) details.get("downloaded")).intValue();
pos++;
}
reply.setDetails(hashes, s_complete, s_downloaded, s_incomplete);
return (new Object[] {reply, torrent});
} else {
PRUDPPacketReplyScrape2 reply = new PRUDPPacketReplyScrape2(request.getTransactionId());
/*
Long interval = (Long)root.get("interval");
if ( interval != null ){
reply.setInterval(interval.intValue());
}
*/
Map files = (Map) root.get("files");
int[] s_complete = new int[files.size()];
int[] s_downloaded = new int[s_complete.length];
int[] s_incomplete = new int[s_complete.length];
Iterator it = files.keySet().iterator();
int pos = 0;
while (it.hasNext()) {
String hash_str = (String) it.next();
Map details = (Map) files.get(hash_str);
s_complete[pos] = ((Long) details.get("complete")).intValue();
s_incomplete[pos] = ((Long) details.get("incomplete")).intValue();
s_downloaded[pos] = ((Long) details.get("downloaded")).intValue();
pos++;
}
reply.setDetails(s_complete, s_downloaded, s_incomplete);
return (new Object[] {reply, torrent});
}
}
}
protected long allocateConnectionId(String client_address) {
try {
random_mon.enter();
long id = random.nextLong();
Long new_key = new Long(id);
connectionData new_data = new connectionData(client_address, id);
// check for timeouts
if (new_data.getTime() - last_timeout_check > 500) {
last_timeout_check = new_data.getTime();
Iterator<Long> it = connection_id_map.keySet().iterator();
while (it.hasNext()) {
Long key = it.next();
connectionData data = connection_id_map.get(key);
if (new_data.getTime() - data.getTime() > CONNECTION_ID_LIFETIME) {
// System.out.println( "TRTrackerServerProcessorUDP: connection id timeout" );
it.remove();
List<connectionData> cds = connection_ip_map.get(client_address);
if (cds != null) {
Iterator<connectionData> it2 = cds.iterator();
while (it2.hasNext()) {
if (it2.next().getID() == key) {
it2.remove();
break;
}
}
if (cds.size() == 0) {
connection_ip_map.remove(client_address);
}
}
} else {
// insertion order into map is time based - LinkedHashMap returns keys in same order
break;
}
}
}
List<connectionData> cds = connection_ip_map.get(client_address);
if (cds == null) {
cds = new ArrayList<connectionData>();
connection_ip_map.put(client_address, cds);
}
cds.add(new_data);
if (cds.size() > 512) {
connectionData dead = cds.remove(0);
connection_id_map.remove(dead.getID());
}
connection_id_map.put(new_key, new_data);
// System.out.println( "TRTrackerServerProcessorUDP: allocated:" + id + ", connection id map
// size = " + connection_id_map.size());
return (id);
} finally {
random_mon.exit();
}
}