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-rw-r--r--src/main/java/eu/siacs/conversations/crypto/axolotl/AxolotlService.java18
1 files changed, 18 insertions, 0 deletions
diff --git a/src/main/java/eu/siacs/conversations/crypto/axolotl/AxolotlService.java b/src/main/java/eu/siacs/conversations/crypto/axolotl/AxolotlService.java
index d79fa1bf8..420c75b5b 100644
--- a/src/main/java/eu/siacs/conversations/crypto/axolotl/AxolotlService.java
+++ b/src/main/java/eu/siacs/conversations/crypto/axolotl/AxolotlService.java
@@ -444,6 +444,7 @@ public class AxolotlService {
public static class XmppAxolotlSession {
private SessionCipher cipher;
private boolean isTrusted = false;
+ private Integer preKeyId = null;
private SQLiteAxolotlStore sqLiteAxolotlStore;
private AxolotlAddress remoteAddress;
@@ -463,6 +464,14 @@ public class AxolotlService {
return this.isTrusted;
}
+ public Integer getPreKeyId() {
+ return preKeyId;
+ }
+
+ public void resetPreKeyId() {
+ preKeyId = null;
+ }
+
public byte[] processReceiving(XmppAxolotlMessage.XmppAxolotlMessageHeader incomingHeader) {
byte[] plaintext = null;
try {
@@ -470,6 +479,9 @@ public class AxolotlService {
PreKeyWhisperMessage message = new PreKeyWhisperMessage(incomingHeader.getContents());
Log.d(Config.LOGTAG, "PreKeyWhisperMessage ID:" + message.getSignedPreKeyId() + "/" + message.getPreKeyId());
plaintext = cipher.decrypt(message);
+ if (message.getPreKeyId().isPresent()) {
+ preKeyId = message.getPreKeyId().get();
+ }
} catch (InvalidMessageException | InvalidVersionException e) {
WhisperMessage message = new WhisperMessage(incomingHeader.getContents());
plaintext = cipher.decrypt(message);
@@ -946,6 +958,12 @@ public class AxolotlService {
Log.d(Config.LOGTAG, "Got payload key from axolotl header. Decrypting message...");
plaintextMessage = message.decrypt(session, payloadKey);
}
+ Integer preKeyId = session.getPreKeyId();
+ if (preKeyId != null) {
+ publishBundlesIfNeeded();
+ session.resetPreKeyId();
+ }
+ break;
}
}