package eu.siacs.conversations.xmpp.jingle; import java.math.BigInteger; import java.security.SecureRandom; import java.util.HashMap; import java.util.List; import java.util.concurrent.CopyOnWriteArrayList; import android.annotation.SuppressLint; import android.util.Log; import eu.siacs.conversations.Config; import eu.siacs.conversations.entities.Account; import eu.siacs.conversations.entities.Message; import eu.siacs.conversations.services.AbstractConnectionManager; import eu.siacs.conversations.services.XmppConnectionService; import eu.siacs.conversations.utils.Xmlns; import eu.siacs.conversations.xml.Element; import eu.siacs.conversations.xmpp.OnIqPacketReceived; import eu.siacs.conversations.xmpp.jid.InvalidJidException; import eu.siacs.conversations.xmpp.jid.Jid; import eu.siacs.conversations.xmpp.jingle.stanzas.JinglePacket; import eu.siacs.conversations.xmpp.stanzas.IqPacket; public class JingleConnectionManager extends AbstractConnectionManager { private List connections = new CopyOnWriteArrayList<>(); private HashMap primaryCandidates = new HashMap<>(); @SuppressLint("TrulyRandom") private SecureRandom random = new SecureRandom(); public JingleConnectionManager(XmppConnectionService service) { super(service); } public void deliverPacket(Account account, JinglePacket packet) { if (packet.isAction("session-initiate")) { JingleConnection connection = new JingleConnection(this); connection.init(account, packet); connections.add(connection); } else { for (JingleConnection connection : connections) { if (connection.getAccount() == account && connection.getSessionId().equals( packet.getSessionId()) && connection.getCounterPart().equals(packet.getFrom())) { connection.deliverPacket(packet); return; } } IqPacket response = packet.generateResponse(IqPacket.TYPE.ERROR); Element error = response.addChild("error"); error.setAttribute("type", "cancel"); error.addChild("item-not-found", "urn:ietf:params:xml:ns:xmpp-stanzas"); error.addChild("unknown-session", "urn:xmpp:jingle:errors:1"); account.getXmppConnection().sendIqPacket(response, null); } } public JingleConnection createNewConnection(Message message) { JingleConnection connection = new JingleConnection(this); connection.init(message); this.connections.add(connection); return connection; } public JingleConnection createNewConnection(final JinglePacket packet) { JingleConnection connection = new JingleConnection(this); this.connections.add(connection); return connection; } public void finishConnection(JingleConnection connection) { this.connections.remove(connection); } public void getPrimaryCandidate(Account account, final OnPrimaryCandidateFound listener) { if (Config.NO_PROXY_LOOKUP) { listener.onPrimaryCandidateFound(false, null); return; } if (!this.primaryCandidates.containsKey(account.getJid().toBareJid())) { final String proxy = account.getXmppConnection().findDiscoItemByFeature(Xmlns.BYTE_STREAMS); if (proxy != null) { IqPacket iq = new IqPacket(IqPacket.TYPE.GET); iq.setAttribute("to", proxy); iq.query(Xmlns.BYTE_STREAMS); account.getXmppConnection().sendIqPacket(iq,new OnIqPacketReceived() { @Override public void onIqPacketReceived(Account account, IqPacket packet) { Element streamhost = packet.query().findChild("streamhost",Xmlns.BYTE_STREAMS); final String host = streamhost == null ? null : streamhost.getAttribute("host"); final String port = streamhost == null ? null : streamhost.getAttribute("port"); if (host != null && port != null) { try { JingleCandidate candidate = new JingleCandidate(nextRandomId(), true); candidate.setHost(host); candidate.setPort(Integer.parseInt(port)); candidate.setType(JingleCandidate.TYPE_PROXY); candidate.setJid(Jid.fromString(proxy)); candidate.setPriority(655360 + 65535); primaryCandidates.put(account.getJid().toBareJid(),candidate); listener.onPrimaryCandidateFound(true,candidate); } catch (final NumberFormatException | InvalidJidException e) { listener.onPrimaryCandidateFound(false,null); return; } } else { listener.onPrimaryCandidateFound(false,null); } } }); } else { listener.onPrimaryCandidateFound(false, null); } } else { listener.onPrimaryCandidateFound(true, this.primaryCandidates.get(account.getJid().toBareJid())); } } public String nextRandomId() { return new BigInteger(50, random).toString(32); } public void deliverIbbPacket(Account account, IqPacket packet) { String sid = null; Element payload = null; if (packet.hasChild("open", "http://jabber.org/protocol/ibb")) { payload = packet.findChild("open", "http://jabber.org/protocol/ibb"); sid = payload.getAttribute("sid"); } else if (packet.hasChild("data", "http://jabber.org/protocol/ibb")) { payload = packet.findChild("data", "http://jabber.org/protocol/ibb"); sid = payload.getAttribute("sid"); } if (sid != null) { for (JingleConnection connection : connections) { if (connection.getAccount() == account && connection.hasTransportId(sid)) { JingleTransport transport = connection.getTransport(); if (transport instanceof JingleInbandTransport) { JingleInbandTransport inbandTransport = (JingleInbandTransport) transport; inbandTransport.deliverPayload(packet, payload); return; } } } Log.d(Config.LOGTAG,"couldn't deliver payload: " + payload.toString()); } else { Log.d(Config.LOGTAG, "no sid found in incoming ibb packet"); } } public void cancelInTransmission() { for (JingleConnection connection : this.connections) { if (connection.getJingleStatus() == JingleConnection.JINGLE_STATUS_TRANSMITTING) { connection.cancel(); } } } }