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figure out fallbacks with omemo source id

This commit is contained in:
Daniel Gultsch 2018-03-22 13:26:35 +01:00
parent bd3799fe02
commit dccd3f1c8e
3 changed files with 55 additions and 3 deletions
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17
src/main/java/eu/siacs/conversations/crypto/axolotl/AxolotlService.java
View File

@ -206,6 +206,19 @@ public class AxolotlService implements OnAdvancedStreamFeaturesLoaded {
this.fillMap(store);
}
public Set<Jid> findCounterpartsForSourceId(Integer sid) {
Set<Jid> candidates = new HashSet<>();
synchronized (MAP_LOCK) {
for(Map.Entry<String,Map<Integer,XmppAxolotlSession>> entry : map.entrySet()) {
String key = entry.getKey();
if (entry.getValue().containsKey(sid)) {
candidates.add(Jid.of(key));
}
}
}
return candidates;
}
private void putDevicesForJid(String bareJid, List<Integer> deviceIds, SQLiteAxolotlStore store) {
for (Integer deviceId : deviceIds) {
SignalProtocolAddress axolotlAddress = new SignalProtocolAddress(bareJid, deviceId);
@ -316,6 +329,10 @@ public class AxolotlService implements OnAdvancedStreamFeaturesLoaded {
return keys;
}
public Set<Jid> findCounterpartsBySourceId(int sid) {
return sessions.findCounterpartsForSourceId(sid);
}
public long getNumTrustedKeys(Jid jid) {
return axolotlStore.getContactNumTrustedKeys(jid.asBareJid().toString());
}

12
src/main/java/eu/siacs/conversations/crypto/axolotl/XmppAxolotlMessage.java
View File

@ -91,6 +91,18 @@ public class XmppAxolotlMessage {
}
}
public static int parseSourceId(final Element axolotlMessage) throws IllegalArgumentException {
final Element header = axolotlMessage.findChild(HEADER);
if (header == null) {
throw new IllegalArgumentException("No header found");
}
try {
return Integer.parseInt(header.getAttribute(SOURCEID));
} catch (NumberFormatException e) {
throw new IllegalArgumentException("invalid source id");
}
}
private XmppAxolotlMessage(final Element axolotlMessage, final Jid from) throws IllegalArgumentException {
this.from = from;
Element header = axolotlMessage.findChild(HEADER);

27
src/main/java/eu/siacs/conversations/parser/MessageParser.java
View File

@ -6,6 +6,7 @@ import android.util.Pair;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Date;
import java.util.List;
import java.util.Locale;
@ -368,17 +369,39 @@ public class MessageParser extends AbstractParser implements OnMessagePacketRece
message = new Message(conversation, pgpEncrypted, Message.ENCRYPTION_PGP, status);
} else if (axolotlEncrypted != null && Config.supportOmemo()) {
Jid origin;
Set<Jid> fallbacksBySourceId = Collections.emptySet();
if (conversationMultiMode) {
final Jid fallback = conversation.getMucOptions().getTrueCounterpart(counterpart);
origin = getTrueCounterpart(query != null ? mucUserElement : null, fallback);
if (origin == null) {
Log.d(Config.LOGTAG, "axolotl message in non anonymous conference received");
try {
fallbacksBySourceId = account.getAxolotlService().findCounterpartsBySourceId(XmppAxolotlMessage.parseSourceId(axolotlEncrypted));
} catch (IllegalArgumentException e) {
//ignoring
}
}
if (origin == null && fallbacksBySourceId.size() == 0) {
Log.d(Config.LOGTAG, "axolotl message in anonymous conference received and no possible fallbacks");
return;
}
} else {
fallbacksBySourceId = Collections.emptySet();
origin = from;
}
if (origin != null) {
message = parseAxolotlChat(axolotlEncrypted, origin, conversation, status, query != null);
} else {
Message trial = null;
for(Jid fallback : fallbacksBySourceId) {
trial = parseAxolotlChat(axolotlEncrypted, fallback, conversation, status, query != null);
if (trial != null) {
Log.d(Config.LOGTAG,account.getJid().asBareJid()+": decoded muc message using fallback");
origin = fallback;
break;
}
}
message = trial;
}
if (message == null) {
if (query == null && extractChatState(mXmppConnectionService.find(account, counterpart.asBareJid()), isTypeGroupChat, packet)) {
mXmppConnectionService.updateConversationUi();
@ -576,7 +599,7 @@ public class MessageParser extends AbstractParser implements OnMessagePacketRece
final Jid fallback = conversation.getMucOptions().getTrueCounterpart(counterpart);
origin = getTrueCounterpart(query != null ? mucUserElement : null, fallback);
if (origin == null) {
Log.d(Config.LOGTAG, "omemo key transport message in non anonymous conference received");
Log.d(Config.LOGTAG, "omemo key transport message in anonymous conference received");
return;
}
} else if (isTypeGroupChat) {