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clean up some error handling error ICE restarts

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This commit is contained in:
Daniel Gultsch 2021-11-17 10:49:16 +01:00
parent 1bf2d5dd8f
commit 61fb38cd84
4 changed files with 71 additions and 40 deletions
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1
src/main/java/eu/siacs/conversations/xml/Namespace.java
View file

@ -28,6 +28,7 @@ public final class Namespace {
public static final String SYNCHRONIZATION = "im.quicksy.synchronization:0";
public static final String AVATAR_CONVERSION = "urn:xmpp:pep-vcard-conversion:0";
public static final String JINGLE = "urn:xmpp:jingle:1";
public static final String JINGLE_ERRORS = "urn:xmpp:jingle:errors:1";
public static final String JINGLE_MESSAGE = "urn:xmpp:jingle-message:0";
public static final String JINGLE_ENCRYPTED_TRANSPORT = "urn:xmpp:jingle:jet:0";
public static final String JINGLE_ENCRYPTED_TRANSPORT_OMEMO = "urn:xmpp:jingle:jet-omemo:0";

2
src/main/java/eu/siacs/conversations/xmpp/jingle/JingleConnectionManager.java
View file

@ -206,7 +206,7 @@ public class JingleConnectionManager extends AbstractConnectionManager {
final Element error = response.addChild("error");
error.setAttribute("type", conditionType);
error.addChild(condition, "urn:ietf:params:xml:ns:xmpp-stanzas");
error.addChild(jingleCondition, "urn:xmpp:jingle:errors:1");
error.addChild(jingleCondition, Namespace.JINGLE_ERRORS);
account.getXmppConnection().sendIqPacket(response, null);
}

101
src/main/java/eu/siacs/conversations/xmpp/jingle/JingleRtpConnection.java
View file

@ -306,6 +306,9 @@ public class JingleRtpConnection extends AbstractJingleConnection implements Web
if (existingCredentials.equals(newCredentials)) {
return false;
}
//TODO an alternative approach is to check if we already got an iq result to our ICE-restart
// and if that's the case we are seeing an answer.
// This might be more spec compliant but also more error prone potentially
final boolean isOffer = rtpContentMap.emptyCandidates();
final RtpContentMap restartContentMap;
try {
@ -330,8 +333,8 @@ public class JingleRtpConnection extends AbstractJingleConnection implements Web
respondOk(jinglePacket);
final Throwable rootCause = Throwables.getRootCause(exception);
if (rootCause instanceof WebRTCWrapper.PeerConnectionNotInitialized) {
Log.d(Config.LOGTAG, "ignoring PeerConnectionNotInitialized");
//TODO don’t respond OK but respond with out-of-order
//If this happens a termination is already in progress
Log.d(Config.LOGTAG, "ignoring PeerConnectionNotInitialized on ICE restart");
return true;
}
Log.d(Config.LOGTAG, "failure to apply ICE restart", rootCause);
@ -484,8 +487,7 @@ public class JingleRtpConnection extends AbstractJingleConnection implements Web
private void receiveSessionInitiate(final JinglePacket jinglePacket, final RtpContentMap contentMap) {
try {
contentMap.requireContentDescriptions();
//TODO require actpass
contentMap.requireDTLSFingerprint();
contentMap.requireDTLSFingerprint(true);
} catch (final RuntimeException e) {
Log.d(Config.LOGTAG, id.account.getJid().asBareJid() + ": improperly formatted contents", Throwables.getRootCause(e));
respondOk(jinglePacket);
@ -1072,36 +1074,48 @@ public class JingleRtpConnection extends AbstractJingleConnection implements Web
private synchronized void handleIqResponse(final Account account, final IqPacket response) {
if (response.getType() == IqPacket.TYPE.ERROR) {
final String errorCondition = response.getErrorCondition();
Log.d(Config.LOGTAG, id.account.getJid().asBareJid() + ": received IQ-error from " + response.getFrom() + " in RTP session. " + errorCondition);
if (isTerminated()) {
Log.i(Config.LOGTAG, id.account.getJid().asBareJid() + ": ignoring error because session was already terminated");
return;
}
this.webRTCWrapper.close();
final State target;
if (Arrays.asList(
"service-unavailable",
"recipient-unavailable",
"remote-server-not-found",
"remote-server-timeout"
).contains(errorCondition)) {
target = State.TERMINATED_CONNECTIVITY_ERROR;
} else {
target = State.TERMINATED_APPLICATION_FAILURE;
}
transitionOrThrow(target);
this.finish();
} else if (response.getType() == IqPacket.TYPE.TIMEOUT) {
Log.d(Config.LOGTAG, id.account.getJid().asBareJid() + ": received IQ timeout in RTP session with " + id.with + ". terminating with connectivity error");
if (isTerminated()) {
Log.i(Config.LOGTAG, id.account.getJid().asBareJid() + ": ignoring error because session was already terminated");
return;
}
this.webRTCWrapper.close();
transitionOrThrow(State.TERMINATED_CONNECTIVITY_ERROR);
this.finish();
handleIqErrorResponse(response);
return;
}
if (response.getType() == IqPacket.TYPE.TIMEOUT) {
handleIqTimeoutResponse(response);
}
}
private void handleIqErrorResponse(final IqPacket response) {
Preconditions.checkArgument(response.getType() == IqPacket.TYPE.ERROR);
final String errorCondition = response.getErrorCondition();
Log.d(Config.LOGTAG, id.account.getJid().asBareJid() + ": received IQ-error from " + response.getFrom() + " in RTP session. " + errorCondition);
if (isTerminated()) {
Log.i(Config.LOGTAG, id.account.getJid().asBareJid() + ": ignoring error because session was already terminated");
return;
}
this.webRTCWrapper.close();
final State target;
if (Arrays.asList(
"service-unavailable",
"recipient-unavailable",
"remote-server-not-found",
"remote-server-timeout"
).contains(errorCondition)) {
target = State.TERMINATED_CONNECTIVITY_ERROR;
} else {
target = State.TERMINATED_APPLICATION_FAILURE;
}
transitionOrThrow(target);
this.finish();
}
private void handleIqTimeoutResponse(final IqPacket response) {
Preconditions.checkArgument(response.getType() == IqPacket.TYPE.ERROR);
Log.d(Config.LOGTAG, id.account.getJid().asBareJid() + ": received IQ timeout in RTP session with " + id.with + ". terminating with connectivity error");
if (isTerminated()) {
Log.i(Config.LOGTAG, id.account.getJid().asBareJid() + ": ignoring error because session was already terminated");
return;
}
this.webRTCWrapper.close();
transitionOrThrow(State.TERMINATED_CONNECTIVITY_ERROR);
this.finish();
}
private void terminateWithOutOfOrder(final JinglePacket jinglePacket) {
@ -1503,8 +1517,9 @@ public class JingleRtpConnection extends AbstractJingleConnection implements Web
try {
sessionDescription = setLocalSessionDescription();
} catch (final Exception e) {
Log.d(Config.LOGTAG, "failed to renegotiate", e);
//TODO send some sort of failure (comparable to when initiating)
final Throwable cause = Throwables.getRootCause(e);
Log.d(Config.LOGTAG, "failed to renegotiate", cause);
sendSessionTerminate(Reason.FAILED_APPLICATION, cause.getMessage());
return;
}
final RtpContentMap rtpContentMap = RtpContentMap.of(sessionDescription);
@ -1517,10 +1532,18 @@ public class JingleRtpConnection extends AbstractJingleConnection implements Web
Log.d(Config.LOGTAG, "received success to our ice restart");
setLocalContentMap(rtpContentMap);
webRTCWrapper.setIsReadyToReceiveIceCandidates(true);
} else {
Log.d(Config.LOGTAG, "received failure to our ice restart");
//TODO ignore tie break (maybe rollback?)
//TODO handle other errors
return;
}
if (response.getType() == IqPacket.TYPE.ERROR) {
final Element error = response.findChild("error");
if (error != null && error.hasChild("tie-break", Namespace.JINGLE_ERRORS)) {
Log.d(Config.LOGTAG, "received tie-break as result of ice restart");
return;
}
handleIqErrorResponse(response);
}
if (response.getType() == IqPacket.TYPE.TIMEOUT) {
handleIqTimeoutResponse(response);
}
});
}

7
src/main/java/eu/siacs/conversations/xmpp/jingle/RtpContentMap.java
View file

@ -96,6 +96,10 @@ public class RtpContentMap {
}
void requireDTLSFingerprint() {
requireDTLSFingerprint(false);
}
void requireDTLSFingerprint(final boolean requireActPass) {
if (this.contents.size() == 0) {
throw new IllegalStateException("No contents available");
}
@ -109,6 +113,9 @@ public class RtpContentMap {
if (setup == null) {
throw new SecurityException(String.format("Use of DTLS-SRTP (XEP-0320) is required for content %s but missing setup attribute", entry.getKey()));
}
if (requireActPass && setup != IceUdpTransportInfo.Setup.ACTPASS) {
throw new SecurityException("Initiator needs to offer ACTPASS as setup for DTLS-SRTP (XEP-0320)");
}
}
}