implement self healing omemo

after receiving a SignalMessage that can’t be decrypted because of broken sessions
Conversations will attempt to grab a new pre key bundle and send a new PreKeySignalMessage
wrapped in a key transport message.

1 files changed, 18 insertions, 0 deletions

diff --git a/src/main/java/de/pixart/messenger/crypto/axolotl/BrokenSessionException.java b/src/main/java/de/pixart/messenger/crypto/axolotl/BrokenSessionException.java
new file mode 100644
index 000000000..1193ad8e4
--- /dev/null
+++ b/src/main/java/de/pixart/messenger/crypto/axolotl/BrokenSessionException.java
@@ -0,0 +1,18 @@
+package de.pixart.messenger.crypto.axolotl;
+
+import org.whispersystems.libsignal.SignalProtocolAddress;
+
+public class BrokenSessionException extends CryptoFailedException {
+
+    private final SignalProtocolAddress signalProtocolAddress;
+
+    public BrokenSessionException(SignalProtocolAddress address, Exception e) {
+        super(e);
+        this.signalProtocolAddress = address;
+
+    }
+
+    public SignalProtocolAddress getSignalProtocolAddress() {
+        return signalProtocolAddress;
+    }
+}
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