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Fix response to event=stopped

BEP-3 says all tracker responses to valid announce requests should be bencoded dictionaries with at least the "peers" and "interval" keys; the "peers" key can be empty.

Also clarify support for BEP-21.
adaptive-webui-19844
FranciscoPombal 5 years ago
parent
commit
966f891d91
  1. 48
      src/base/bittorrent/tracker.cpp

48
src/base/bittorrent/tracker.cpp

@ -349,9 +349,9 @@ void Tracker::processAnnounceRequest() @@ -349,9 +349,9 @@ void Tracker::processAnnounceRequest()
|| (announceReq.event == ANNOUNCE_REQUEST_EVENT_COMPLETED)
|| (announceReq.event == ANNOUNCE_REQUEST_EVENT_STARTED)
|| (announceReq.event == ANNOUNCE_REQUEST_EVENT_PAUSED)) {
// [BEP-21] Extension for partial seeds (partial support)
// [BEP-21] Extension for partial seeds
// (partial support - we don't support BEP-48 so the part that concerns that is not supported)
registerPeer(announceReq);
prepareAnnounceResponse(announceReq);
}
else if (announceReq.event == ANNOUNCE_REQUEST_EVENT_STOPPED) {
unregisterPeer(announceReq);
@ -359,6 +359,8 @@ void Tracker::processAnnounceRequest() @@ -359,6 +359,8 @@ void Tracker::processAnnounceRequest()
else {
throw TrackerError("Invalid \"event\" parameter");
}
prepareAnnounceResponse(announceReq);
}
void Tracker::registerPeer(const TrackerAnnounceRequest &announceReq)
@ -404,15 +406,17 @@ void Tracker::prepareAnnounceResponse(const TrackerAnnounceRequest &announceReq) @@ -404,15 +406,17 @@ void Tracker::prepareAnnounceResponse(const TrackerAnnounceRequest &announceReq)
lt::entry::string_type peers;
lt::entry::string_type peers6;
int counter = 0;
for (const Peer &peer : asConst(torrentStats.peers)) {
if (counter++ >= announceReq.numwant)
break;
if (announceReq.event != ANNOUNCE_REQUEST_EVENT_STOPPED) {
int counter = 0;
for (const Peer &peer : asConst(torrentStats.peers)) {
if (counter++ >= announceReq.numwant)
break;
if (peer.endpoint.size() == 6) // IPv4 + port
peers.append(peer.endpoint);
else if (peer.endpoint.size() == 18) // IPv6 + port
peers6.append(peer.endpoint);
if (peer.endpoint.size() == 6) // IPv4 + port
peers.append(peer.endpoint);
else if (peer.endpoint.size() == 18) // IPv6 + port
peers6.append(peer.endpoint);
}
}
replyDict[ANNOUNCE_RESPONSE_PEERS] = peers; // required, even it's empty
@ -422,20 +426,22 @@ void Tracker::prepareAnnounceResponse(const TrackerAnnounceRequest &announceReq) @@ -422,20 +426,22 @@ void Tracker::prepareAnnounceResponse(const TrackerAnnounceRequest &announceReq)
else {
lt::entry::list_type peerList;
int counter = 0;
for (const Peer &peer : torrentStats.peers) {
if (counter++ >= announceReq.numwant)
break;
if (announceReq.event != ANNOUNCE_REQUEST_EVENT_STOPPED) {
int counter = 0;
for (const Peer &peer : torrentStats.peers) {
if (counter++ >= announceReq.numwant)
break;
lt::entry::dictionary_type peerDict = {
{ANNOUNCE_RESPONSE_PEERS_IP, peer.address},
{ANNOUNCE_RESPONSE_PEERS_PORT, peer.port}
};
lt::entry::dictionary_type peerDict = {
{ANNOUNCE_RESPONSE_PEERS_IP, peer.address},
{ANNOUNCE_RESPONSE_PEERS_PORT, peer.port}
};
if (!announceReq.noPeerId)
peerDict[ANNOUNCE_RESPONSE_PEERS_PEER_ID] = peer.peerId.constData();
if (!announceReq.noPeerId)
peerDict[ANNOUNCE_RESPONSE_PEERS_PEER_ID] = peer.peerId.constData();
peerList.emplace_back(peerDict);
peerList.emplace_back(peerDict);
}
}
replyDict[ANNOUNCE_RESPONSE_PEERS] = peerList;

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