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Diffstat (limited to 'src/com/isode/stroke/filetransfer/RemoteJingleTransportCandidateSelector.java')
-rw-r--r--src/com/isode/stroke/filetransfer/RemoteJingleTransportCandidateSelector.java111
1 files changed, 111 insertions, 0 deletions
diff --git a/src/com/isode/stroke/filetransfer/RemoteJingleTransportCandidateSelector.java b/src/com/isode/stroke/filetransfer/RemoteJingleTransportCandidateSelector.java
new file mode 100644
index 0000000..1d1c822
--- /dev/null
+++ b/src/com/isode/stroke/filetransfer/RemoteJingleTransportCandidateSelector.java
@@ -0,0 +1,111 @@
+/*
+ * Copyright (c) 2011 Tobias Markmann
+ * Licensed under the simplified BSD license.
+ * See Documentation/Licenses/BSD-simplified.txt for more information.
+ */
+/*
+ * Copyright (c) 2013-2015 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
+ */
+/*
+ * Copyright (c) 2015 Tarun Gupta.
+ * Licensed under the simplified BSD license.
+ * See Documentation/Licenses/BSD-simplified.txt for more information.
+ */
+
+package com.isode.stroke.filetransfer;
+
+import java.util.PriorityQueue;
+import com.isode.stroke.network.ConnectionFactory;
+import com.isode.stroke.network.TimerFactory;
+import com.isode.stroke.network.Connection;
+import com.isode.stroke.signals.SignalConnection;
+import com.isode.stroke.signals.Slot1;
+import com.isode.stroke.signals.Signal2;
+import com.isode.stroke.elements.JingleS5BTransportPayload;
+import java.util.logging.Logger;
+import java.util.Vector;
+
+public class RemoteJingleTransportCandidateSelector {
+
+ private ConnectionFactory connectionFactory;
+ private TimerFactory timerFactory;
+
+ private PriorityQueue<JingleS5BTransportPayload.Candidate> candidates = new PriorityQueue<JingleS5BTransportPayload.Candidate>(25, new JingleS5BTransportPayload.CompareCandidate());
+ private SOCKS5BytestreamClientSession s5bSession;
+ private SignalConnection sessionReadyConnection;
+ private JingleS5BTransportPayload.Candidate lastCandidate;
+ private String socks5DstAddr;
+ private FileTransferOptions options;
+ private Logger logger_ = Logger.getLogger(this.getClass().getName());
+
+ public RemoteJingleTransportCandidateSelector(ConnectionFactory connectionFactory, TimerFactory timerFactory, final FileTransferOptions options) {
+ this.connectionFactory = connectionFactory;
+ this.timerFactory = timerFactory;
+ this.options = options;
+ }
+
+ public void addCandidates(final Vector<JingleS5BTransportPayload.Candidate> candidates) {
+ for(JingleS5BTransportPayload.Candidate c : candidates) {
+ this.candidates.add(c);
+ }
+ }
+
+ public void setSOCKS5DstAddr(final String socks5DstAddr) {
+ this.socks5DstAddr = socks5DstAddr;
+ }
+
+ public void startSelectingCandidate() {
+ tryNextCandidate();
+ }
+
+ public void stopSelectingCandidate() {
+ if (s5bSession != null) {
+ sessionReadyConnection.disconnect();
+ s5bSession.stop();
+ }
+ }
+
+ public Signal2<JingleS5BTransportPayload.Candidate, SOCKS5BytestreamClientSession> onCandidateSelectFinished = new Signal2<JingleS5BTransportPayload.Candidate, SOCKS5BytestreamClientSession>();
+
+ private void tryNextCandidate() {
+ if (candidates.isEmpty()) {
+ logger_.fine("No more candidates\n");
+ onCandidateSelectFinished.emit(null, null);
+ }
+ else {
+ lastCandidate = candidates.peek();
+ candidates.poll();
+ logger_.fine("Trying candidate " + lastCandidate.cid + "\n");
+ if ((lastCandidate.type.equals(JingleS5BTransportPayload.Candidate.Type.DirectType) && options.isDirectAllowed()) ||
+ (lastCandidate.type.equals(JingleS5BTransportPayload.Candidate.Type.AssistedType) && options.isAssistedAllowed()) ||
+ (lastCandidate.type.equals(JingleS5BTransportPayload.Candidate.Type.ProxyType) && options.isProxiedAllowed())) {
+ Connection connection = connectionFactory.createConnection();
+ s5bSession = new SOCKS5BytestreamClientSession(connection, lastCandidate.hostPort, socks5DstAddr, timerFactory);
+ sessionReadyConnection = s5bSession.onSessionReady.connect(new Slot1<Boolean>() {
+ @Override
+ public void call(Boolean b) {
+ handleSessionReady(b);
+ }
+ });
+ s5bSession.start();
+ }
+ else {
+ logger_.fine("Can't handle this type of candidate\n");
+ tryNextCandidate();
+ }
+ }
+ }
+
+ private void handleSessionReady(boolean error) {
+ sessionReadyConnection.disconnect();
+ if (error) {
+ s5bSession = null;
+ tryNextCandidate();
+ }
+ else {
+ onCandidateSelectFinished.emit(lastCandidate, s5bSession);
+ }
+ }
+} \ No newline at end of file