invoke x509 verification upon receiving prekey message in rtp session
This commit is contained in:
parent
9c16af25fb
commit
ddf597e0d3
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@ -8,7 +8,13 @@ import android.util.Pair;
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import androidx.annotation.NonNull;
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import androidx.annotation.NonNull;
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import androidx.annotation.Nullable;
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import androidx.annotation.Nullable;
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import com.google.common.base.Function;
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import com.google.common.collect.ImmutableList;
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import com.google.common.collect.ImmutableMap;
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import com.google.common.collect.ImmutableMap;
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import com.google.common.util.concurrent.Futures;
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import com.google.common.util.concurrent.ListenableFuture;
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import com.google.common.util.concurrent.MoreExecutors;
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import com.google.common.util.concurrent.SettableFuture;
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import org.bouncycastle.jce.provider.BouncyCastleProvider;
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import org.bouncycastle.jce.provider.BouncyCastleProvider;
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import org.whispersystems.libsignal.IdentityKey;
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import org.whispersystems.libsignal.IdentityKey;
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@ -733,16 +739,22 @@ public class AxolotlService implements OnAdvancedStreamFeaturesLoaded {
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axolotlStore.setFingerprintStatus(fingerprint, status);
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axolotlStore.setFingerprintStatus(fingerprint, status);
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}
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}
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private void verifySessionWithPEP(final XmppAxolotlSession session) {
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private ListenableFuture<XmppAxolotlSession> verifySessionWithPEP(final XmppAxolotlSession session) {
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Log.d(Config.LOGTAG, "trying to verify fresh session (" + session.getRemoteAddress().getName() + ") with pep");
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Log.d(Config.LOGTAG, "trying to verify fresh session (" + session.getRemoteAddress().getName() + ") with pep");
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final SignalProtocolAddress address = session.getRemoteAddress();
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final SignalProtocolAddress address = session.getRemoteAddress();
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final IdentityKey identityKey = session.getIdentityKey();
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final IdentityKey identityKey = session.getIdentityKey();
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final Jid jid;
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try {
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try {
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IqPacket packet = mXmppConnectionService.getIqGenerator().retrieveVerificationForDevice(Jid.of(address.getName()), address.getDeviceId());
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jid = Jid.of(address.getName());
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mXmppConnectionService.sendIqPacket(account, packet, new OnIqPacketReceived() {
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} catch (final IllegalArgumentException e) {
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@Override
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fetchStatusMap.put(address, FetchStatus.SUCCESS);
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public void onIqPacketReceived(Account account, IqPacket packet) {
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finishBuildingSessionsFromPEP(address);
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Pair<X509Certificate[], byte[]> verification = mXmppConnectionService.getIqParser().verification(packet);
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return Futures.immediateFuture(session);
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}
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final SettableFuture<XmppAxolotlSession> future = SettableFuture.create();
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final IqPacket packet = mXmppConnectionService.getIqGenerator().retrieveVerificationForDevice(jid, address.getDeviceId());
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mXmppConnectionService.sendIqPacket(account, packet, (account, response) -> {
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Pair<X509Certificate[], byte[]> verification = mXmppConnectionService.getIqParser().verification(response);
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if (verification != null) {
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if (verification != null) {
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try {
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try {
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Signature verifier = Signature.getInstance("sha256WithRSA");
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Signature verifier = Signature.getInstance("sha256WithRSA");
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@ -759,13 +771,14 @@ public class AxolotlService implements OnAdvancedStreamFeaturesLoaded {
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Bundle information = CryptoHelper.extractCertificateInformation(verification.first[0]);
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Bundle information = CryptoHelper.extractCertificateInformation(verification.first[0]);
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try {
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try {
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final String cn = information.getString("subject_cn");
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final String cn = information.getString("subject_cn");
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final Jid jid = Jid.of(address.getName());
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final Jid jid1 = Jid.of(address.getName());
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Log.d(Config.LOGTAG, "setting common name for " + jid + " to " + cn);
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Log.d(Config.LOGTAG, "setting common name for " + jid1 + " to " + cn);
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account.getRoster().getContact(jid).setCommonName(cn);
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account.getRoster().getContact(jid1).setCommonName(cn);
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} catch (final IllegalArgumentException ignored) {
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} catch (final IllegalArgumentException ignored) {
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//ignored
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//ignored
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}
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}
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finishBuildingSessionsFromPEP(address);
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finishBuildingSessionsFromPEP(address);
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future.set(session);
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return;
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return;
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} catch (Exception e) {
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} catch (Exception e) {
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Log.d(Config.LOGTAG, "could not verify certificate");
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Log.d(Config.LOGTAG, "could not verify certificate");
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@ -779,12 +792,9 @@ public class AxolotlService implements OnAdvancedStreamFeaturesLoaded {
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}
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}
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fetchStatusMap.put(address, FetchStatus.SUCCESS);
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fetchStatusMap.put(address, FetchStatus.SUCCESS);
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finishBuildingSessionsFromPEP(address);
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finishBuildingSessionsFromPEP(address);
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}
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future.set(session);
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});
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});
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} catch (IllegalArgumentException e) {
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return future;
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fetchStatusMap.put(address, FetchStatus.SUCCESS);
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finishBuildingSessionsFromPEP(address);
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}
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}
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}
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private void finishBuildingSessionsFromPEP(final SignalProtocolAddress address) {
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private void finishBuildingSessionsFromPEP(final SignalProtocolAddress address) {
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@ -1255,12 +1265,18 @@ public class AxolotlService implements OnAdvancedStreamFeaturesLoaded {
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);
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);
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}
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}
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public OmemoVerifiedPayload<RtpContentMap> decrypt(OmemoVerifiedRtpContentMap omemoVerifiedRtpContentMap, final Jid from) throws CryptoFailedException {
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public ListenableFuture<OmemoVerifiedPayload<RtpContentMap>> decrypt(OmemoVerifiedRtpContentMap omemoVerifiedRtpContentMap, final Jid from) {
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final ImmutableMap.Builder<String, RtpContentMap.DescriptionTransport> descriptionTransportBuilder = new ImmutableMap.Builder<>();
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final ImmutableMap.Builder<String, RtpContentMap.DescriptionTransport> descriptionTransportBuilder = new ImmutableMap.Builder<>();
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final OmemoVerification omemoVerification = new OmemoVerification();
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final OmemoVerification omemoVerification = new OmemoVerification();
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final ImmutableList.Builder<ListenableFuture<XmppAxolotlSession>> pepVerificationFutures = new ImmutableList.Builder<>();
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for (final Map.Entry<String, RtpContentMap.DescriptionTransport> content : omemoVerifiedRtpContentMap.contents.entrySet()) {
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for (final Map.Entry<String, RtpContentMap.DescriptionTransport> content : omemoVerifiedRtpContentMap.contents.entrySet()) {
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final RtpContentMap.DescriptionTransport descriptionTransport = content.getValue();
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final RtpContentMap.DescriptionTransport descriptionTransport = content.getValue();
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final OmemoVerifiedPayload<IceUdpTransportInfo> decryptedTransport = decrypt((OmemoVerifiedIceUdpTransportInfo) descriptionTransport.transport, from);
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final OmemoVerifiedPayload<IceUdpTransportInfo> decryptedTransport;
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try {
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decryptedTransport = decrypt((OmemoVerifiedIceUdpTransportInfo) descriptionTransport.transport, from, pepVerificationFutures);
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} catch (CryptoFailedException e) {
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return Futures.immediateFailedFuture(e);
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}
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omemoVerification.setOrEnsureEqual(decryptedTransport);
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omemoVerification.setOrEnsureEqual(decryptedTransport);
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descriptionTransportBuilder.put(
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descriptionTransportBuilder.put(
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content.getKey(),
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content.getKey(),
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@ -1268,13 +1284,26 @@ public class AxolotlService implements OnAdvancedStreamFeaturesLoaded {
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);
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);
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}
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}
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processPostponed();
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processPostponed();
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final ImmutableList<ListenableFuture<XmppAxolotlSession>> sessionFutures = pepVerificationFutures.build();
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return Futures.transform(
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Futures.allAsList(sessionFutures),
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sessions -> {
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if (Config.REQUIRE_RTP_VERIFICATION) {
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for (XmppAxolotlSession session : sessions) {
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requireVerification(session);
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}
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}
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return new OmemoVerifiedPayload<>(
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return new OmemoVerifiedPayload<>(
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omemoVerification,
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omemoVerification,
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new RtpContentMap(omemoVerifiedRtpContentMap.group, descriptionTransportBuilder.build())
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new RtpContentMap(omemoVerifiedRtpContentMap.group, descriptionTransportBuilder.build())
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);
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);
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},
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MoreExecutors.directExecutor()
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);
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}
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}
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private OmemoVerifiedPayload<IceUdpTransportInfo> decrypt(final OmemoVerifiedIceUdpTransportInfo verifiedIceUdpTransportInfo, final Jid from) throws CryptoFailedException {
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private OmemoVerifiedPayload<IceUdpTransportInfo> decrypt(final OmemoVerifiedIceUdpTransportInfo verifiedIceUdpTransportInfo, final Jid from, ImmutableList.Builder<ListenableFuture<XmppAxolotlSession>> pepVerificationFutures) throws CryptoFailedException {
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final IceUdpTransportInfo transportInfo = new IceUdpTransportInfo();
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final IceUdpTransportInfo transportInfo = new IceUdpTransportInfo();
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transportInfo.setAttributes(verifiedIceUdpTransportInfo.getAttributes());
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transportInfo.setAttributes(verifiedIceUdpTransportInfo.getAttributes());
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final OmemoVerification omemoVerification = new OmemoVerification();
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final OmemoVerification omemoVerification = new OmemoVerification();
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@ -1286,14 +1315,16 @@ public class AxolotlService implements OnAdvancedStreamFeaturesLoaded {
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final Element encrypted = child.findChildEnsureSingle(XmppAxolotlMessage.CONTAINERTAG, AxolotlService.PEP_PREFIX);
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final Element encrypted = child.findChildEnsureSingle(XmppAxolotlMessage.CONTAINERTAG, AxolotlService.PEP_PREFIX);
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final XmppAxolotlMessage xmppAxolotlMessage = XmppAxolotlMessage.fromElement(encrypted, from.asBareJid());
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final XmppAxolotlMessage xmppAxolotlMessage = XmppAxolotlMessage.fromElement(encrypted, from.asBareJid());
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final XmppAxolotlSession session = getReceivingSession(xmppAxolotlMessage);
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final XmppAxolotlSession session = getReceivingSession(xmppAxolotlMessage);
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if (Config.REQUIRE_RTP_VERIFICATION) {
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requireVerification(session);
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}
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final XmppAxolotlMessage.XmppAxolotlPlaintextMessage plaintext = xmppAxolotlMessage.decrypt(session, getOwnDeviceId());
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final XmppAxolotlMessage.XmppAxolotlPlaintextMessage plaintext = xmppAxolotlMessage.decrypt(session, getOwnDeviceId());
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final Integer preKeyId = session.getPreKeyIdAndReset();
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final Integer preKeyId = session.getPreKeyIdAndReset();
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if (preKeyId != null) {
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if (preKeyId != null) {
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postponedSessions.add(session);
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postponedSessions.add(session);
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}
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}
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if (session.isFresh()) {
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pepVerificationFutures.add(putFreshSession(session));
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} else if (Config.REQUIRE_RTP_VERIFICATION) {
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pepVerificationFutures.add(Futures.immediateFuture(session));
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}
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fingerprint.setContent(plaintext.getPlaintext());
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fingerprint.setContent(plaintext.getPlaintext());
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omemoVerification.setDeviceId(session.getRemoteAddress().getDeviceId());
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omemoVerification.setDeviceId(session.getRemoteAddress().getDeviceId());
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omemoVerification.setSessionFingerprint(plaintext.getFingerprint());
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omemoVerification.setSessionFingerprint(plaintext.getFingerprint());
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@ -1512,15 +1543,16 @@ public class AxolotlService implements OnAdvancedStreamFeaturesLoaded {
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return keyTransportMessage;
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return keyTransportMessage;
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}
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}
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private void putFreshSession(XmppAxolotlSession session) {
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private ListenableFuture<XmppAxolotlSession> putFreshSession(XmppAxolotlSession session) {
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sessions.put(session);
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sessions.put(session);
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if (Config.X509_VERIFICATION) {
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if (Config.X509_VERIFICATION) {
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if (session.getIdentityKey() != null) {
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if (session.getIdentityKey() != null) {
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verifySessionWithPEP(session);
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return verifySessionWithPEP(session);
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} else {
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} else {
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Log.e(Config.LOGTAG, account.getJid().asBareJid() + ": identity key was empty after reloading for x509 verification");
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Log.e(Config.LOGTAG, account.getJid().asBareJid() + ": identity key was empty after reloading for x509 verification");
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}
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}
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}
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}
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return Futures.immediateFuture(session);
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}
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}
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public enum FetchStatus {
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public enum FetchStatus {
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@ -3,6 +3,9 @@ package eu.siacs.conversations.xmpp.jingle;
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import android.os.SystemClock;
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import android.os.SystemClock;
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import android.util.Log;
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import android.util.Log;
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import androidx.annotation.NonNull;
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import androidx.annotation.Nullable;
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import com.google.common.base.Optional;
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import com.google.common.base.Optional;
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import com.google.common.base.Preconditions;
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import com.google.common.base.Preconditions;
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import com.google.common.base.Strings;
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import com.google.common.base.Strings;
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@ -12,7 +15,10 @@ import com.google.common.collect.ImmutableList;
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import com.google.common.collect.ImmutableMap;
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import com.google.common.collect.ImmutableMap;
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import com.google.common.collect.Sets;
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import com.google.common.collect.Sets;
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import com.google.common.primitives.Ints;
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import com.google.common.primitives.Ints;
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import com.google.common.util.concurrent.FutureCallback;
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import com.google.common.util.concurrent.Futures;
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import com.google.common.util.concurrent.ListenableFuture;
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import com.google.common.util.concurrent.ListenableFuture;
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import com.google.common.util.concurrent.MoreExecutors;
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import org.webrtc.EglBase;
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import org.webrtc.EglBase;
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import org.webrtc.IceCandidate;
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import org.webrtc.IceCandidate;
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@ -243,7 +249,8 @@ public class JingleRtpConnection extends AbstractJingleConnection implements Web
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}
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}
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private void receiveTransportInfo(final JinglePacket jinglePacket) {
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private void receiveTransportInfo(final JinglePacket jinglePacket) {
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if (isInState(State.SESSION_INITIALIZED, State.SESSION_INITIALIZED_PRE_APPROVED, State.SESSION_ACCEPTED)) {
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//Due to the asynchronicity of processing session-init we might move from NULL|PROCEED to INITIALIZED only after transport-info has been received
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if (isInState(State.NULL, State.PROCEED, State.SESSION_INITIALIZED, State.SESSION_INITIALIZED_PRE_APPROVED, State.SESSION_ACCEPTED)) {
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respondOk(jinglePacket);
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respondOk(jinglePacket);
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final RtpContentMap contentMap;
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final RtpContentMap contentMap;
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try {
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try {
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@ -306,22 +313,19 @@ public class JingleRtpConnection extends AbstractJingleConnection implements Web
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}
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}
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}
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}
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private RtpContentMap receiveRtpContentMap(final JinglePacket jinglePacket, final boolean expectVerification) {
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private ListenableFuture<RtpContentMap> receiveRtpContentMap(final JinglePacket jinglePacket, final boolean expectVerification) {
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final RtpContentMap receivedContentMap = RtpContentMap.of(jinglePacket);
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final RtpContentMap receivedContentMap = RtpContentMap.of(jinglePacket);
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if (receivedContentMap instanceof OmemoVerifiedRtpContentMap) {
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if (receivedContentMap instanceof OmemoVerifiedRtpContentMap) {
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final AxolotlService.OmemoVerifiedPayload<RtpContentMap> omemoVerifiedPayload;
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final ListenableFuture<AxolotlService.OmemoVerifiedPayload<RtpContentMap>> future = id.account.getAxolotlService().decrypt((OmemoVerifiedRtpContentMap) receivedContentMap, id.with);
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try {
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return Futures.transform(future, omemoVerifiedPayload -> {
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omemoVerifiedPayload = id.account.getAxolotlService().decrypt((OmemoVerifiedRtpContentMap) receivedContentMap, id.with);
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omemoVerification.setOrEnsureEqual(omemoVerifiedPayload);
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} catch (final CryptoFailedException e) {
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Log.d(Config.LOGTAG, id.account.getJid().asBareJid() + ": received verifiable DTLS fingerprint via " + omemoVerification);
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throw new SecurityException("Unable to verify DTLS Fingerprint with OMEMO", e);
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}
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this.omemoVerification.setOrEnsureEqual(omemoVerifiedPayload);
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Log.d(Config.LOGTAG, id.account.getJid().asBareJid() + ": received verifiable DTLS fingerprint via " + this.omemoVerification);
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return omemoVerifiedPayload.getPayload();
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return omemoVerifiedPayload.getPayload();
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}, MoreExecutors.directExecutor());
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} else if (expectVerification) {
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} else if (expectVerification) {
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throw new SecurityException("DTLS fingerprint was unexpectedly not verifiable");
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throw new SecurityException("DTLS fingerprint was unexpectedly not verifiable");
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} else {
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} else {
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return receivedContentMap;
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return Futures.immediateFuture(receivedContentMap);
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}
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}
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}
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}
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@ -340,9 +344,23 @@ public class JingleRtpConnection extends AbstractJingleConnection implements Web
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}
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}
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return;
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return;
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}
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}
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final RtpContentMap contentMap;
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final ListenableFuture<RtpContentMap> future = receiveRtpContentMap(jinglePacket, false);
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Futures.addCallback(future, new FutureCallback<RtpContentMap>() {
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@Override
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public void onSuccess(@Nullable RtpContentMap rtpContentMap) {
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receiveSessionInitiate(jinglePacket, rtpContentMap);
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}
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@Override
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public void onFailure(@NonNull final Throwable throwable) {
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respondOk(jinglePacket);
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sendSessionTerminate(Reason.ofThrowable(throwable), throwable.getMessage());
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}
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}, MoreExecutors.directExecutor());
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}
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private void receiveSessionInitiate(final JinglePacket jinglePacket, final RtpContentMap contentMap) {
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try {
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try {
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contentMap = receiveRtpContentMap(jinglePacket, false);
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contentMap.requireContentDescriptions();
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contentMap.requireContentDescriptions();
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contentMap.requireDTLSFingerprint();
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contentMap.requireDTLSFingerprint();
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} catch (final RuntimeException e) {
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} catch (final RuntimeException e) {
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@ -396,9 +414,25 @@ public class JingleRtpConnection extends AbstractJingleConnection implements Web
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terminateWithOutOfOrder(jinglePacket);
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terminateWithOutOfOrder(jinglePacket);
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return;
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return;
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}
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}
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final RtpContentMap contentMap;
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final ListenableFuture<RtpContentMap> future = receiveRtpContentMap(jinglePacket, this.omemoVerification.hasFingerprint());
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Futures.addCallback(future, new FutureCallback<RtpContentMap>() {
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@Override
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public void onSuccess(@Nullable RtpContentMap rtpContentMap) {
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receiveSessionAccept(jinglePacket, rtpContentMap);
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}
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@Override
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public void onFailure(@NonNull final Throwable throwable) {
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respondOk(jinglePacket);
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Log.d(Config.LOGTAG, id.account.getJid().asBareJid() + ": improperly formatted contents in session-accept", throwable);
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webRTCWrapper.close();
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sendSessionTerminate(Reason.ofThrowable(throwable), throwable.getMessage());
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}
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}, MoreExecutors.directExecutor());
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||||||
|
}
|
||||||
|
|
||||||
|
private void receiveSessionAccept(final JinglePacket jinglePacket, final RtpContentMap contentMap) {
|
||||||
try {
|
try {
|
||||||
contentMap = receiveRtpContentMap(jinglePacket, this.omemoVerification.hasFingerprint());
|
|
||||||
contentMap.requireContentDescriptions();
|
contentMap.requireContentDescriptions();
|
||||||
contentMap.requireDTLSFingerprint();
|
contentMap.requireDTLSFingerprint();
|
||||||
} catch (final RuntimeException e) {
|
} catch (final RuntimeException e) {
|
||||||
|
@ -762,7 +796,7 @@ public class JingleRtpConnection extends AbstractJingleConnection implements Web
|
||||||
} catch (final WebRTCWrapper.InitializationException e) {
|
} catch (final WebRTCWrapper.InitializationException e) {
|
||||||
Log.d(Config.LOGTAG, id.account.getJid().asBareJid() + ": unable to initialize WebRTC");
|
Log.d(Config.LOGTAG, id.account.getJid().asBareJid() + ": unable to initialize WebRTC");
|
||||||
webRTCWrapper.close();
|
webRTCWrapper.close();
|
||||||
sendRetract(Reason.ofException(e));
|
sendRetract(Reason.ofThrowable(e));
|
||||||
return;
|
return;
|
||||||
}
|
}
|
||||||
try {
|
try {
|
||||||
|
@ -774,7 +808,7 @@ public class JingleRtpConnection extends AbstractJingleConnection implements Web
|
||||||
} catch (final Exception e) {
|
} catch (final Exception e) {
|
||||||
Log.d(Config.LOGTAG, id.account.getJid().asBareJid() + ": unable to sendSessionInitiate", Throwables.getRootCause(e));
|
Log.d(Config.LOGTAG, id.account.getJid().asBareJid() + ": unable to sendSessionInitiate", Throwables.getRootCause(e));
|
||||||
webRTCWrapper.close();
|
webRTCWrapper.close();
|
||||||
final Reason reason = Reason.ofException(e);
|
final Reason reason = Reason.ofThrowable(e);
|
||||||
if (isInState(targetState)) {
|
if (isInState(targetState)) {
|
||||||
sendSessionTerminate(reason);
|
sendSessionTerminate(reason);
|
||||||
} else {
|
} else {
|
||||||
|
@ -1010,7 +1044,7 @@ public class JingleRtpConnection extends AbstractJingleConnection implements Web
|
||||||
return false;
|
return false;
|
||||||
}
|
}
|
||||||
final FingerprintStatus status = id.account.getAxolotlService().getFingerprintTrust(fingerprint);
|
final FingerprintStatus status = id.account.getAxolotlService().getFingerprintTrust(fingerprint);
|
||||||
return status != null && status.getTrust() == FingerprintStatus.Trust.VERIFIED;
|
return status != null && status.isVerified();
|
||||||
}
|
}
|
||||||
|
|
||||||
public synchronized void acceptCall() {
|
public synchronized void acceptCall() {
|
||||||
|
|
|
@ -54,8 +54,8 @@ public enum Reason {
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
public static Reason ofException(final Exception e) {
|
public static Reason ofThrowable(final Throwable throwable) {
|
||||||
final Throwable root = Throwables.getRootCause(e);
|
final Throwable root = Throwables.getRootCause(throwable);
|
||||||
if (root instanceof RuntimeException) {
|
if (root instanceof RuntimeException) {
|
||||||
return of((RuntimeException) root);
|
return of((RuntimeException) root);
|
||||||
}
|
}
|
||||||
|
|
Loading…
Reference in New Issue