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Retry decrypting of messages from previously untrusted keys

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Decrypts messages from untrusted keys, if they are trusted now
This commit is contained in:
AsamK 2016-08-20 16:04:00 +02:00
parent 5ee375c74d
commit b2289568ef
1 changed files with 70 additions and 0 deletions
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70
src/main/java/org/asamk/signal/Manager.java
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@ -864,7 +864,49 @@ class Manager implements Signal {
} }
} }
public void retryFailedReceivedMessages(ReceiveMessageHandler handler) {
final File cachePath = new File(getMessageCachePath());
if (!cachePath.exists()) {
return;
}
for (final File dir : cachePath.listFiles()) {
if (!dir.isDirectory()) {
continue;
}
String sender = dir.getName();
for (final File fileEntry : dir.listFiles()) {
if (!fileEntry.isFile()) {
continue;
}
SignalServiceEnvelope envelope;
try {
envelope = loadEnvelope(fileEntry);
if (envelope == null) {
continue;
}
} catch (IOException e) {
e.printStackTrace();
continue;
}
SignalServiceContent content = null;
if (!envelope.isReceipt()) {
try {
content = decryptMessage(envelope);
} catch (Exception e) {
continue;
}
handleMessage(envelope, content);
}
save();
handler.handleMessage(envelope, content, null);
fileEntry.delete();
}
}
}
public void receiveMessages(int timeoutSeconds, boolean returnOnTimeout, ReceiveMessageHandler handler) throws IOException { public void receiveMessages(int timeoutSeconds, boolean returnOnTimeout, ReceiveMessageHandler handler) throws IOException {
retryFailedReceivedMessages(handler);
final SignalServiceMessageReceiver messageReceiver = new SignalServiceMessageReceiver(URL, TRUST_STORE, username, password, deviceId, signalingKey, USER_AGENT); final SignalServiceMessageReceiver messageReceiver = new SignalServiceMessageReceiver(URL, TRUST_STORE, username, password, deviceId, signalingKey, USER_AGENT);
SignalServiceMessagePipe messagePipe = null; SignalServiceMessagePipe messagePipe = null;
@ -1000,6 +1042,34 @@ class Manager implements Signal {
} }
} }
private SignalServiceEnvelope loadEnvelope(File file) throws IOException {
try (FileInputStream f = new FileInputStream(file)) {
DataInputStream in = new DataInputStream(f);
int version = in.readInt();
if (version != 1) {
return null;
}
int type = in.readInt();
String source = in.readUTF();
int sourceDevice = in.readInt();
String relay = in.readUTF();
long timestamp = in.readLong();
byte[] content = null;
int contentLen = in.readInt();
if (contentLen > 0) {
content = new byte[contentLen];
in.readFully(content);
}
byte[] legacyMessage = null;
int legacyMessageLen = in.readInt();
if (legacyMessageLen > 0) {
legacyMessage = new byte[legacyMessageLen];
in.readFully(legacyMessage);
}
return new SignalServiceEnvelope(type, source, sourceDevice, relay, timestamp, legacyMessage, content);
}
}
private void storeEnvelope(SignalServiceEnvelope envelope, File file) throws IOException { private void storeEnvelope(SignalServiceEnvelope envelope, File file) throws IOException {
try (FileOutputStream f = new FileOutputStream(file)) { try (FileOutputStream f = new FileOutputStream(file)) {
DataOutputStream out = new DataOutputStream(f); DataOutputStream out = new DataOutputStream(f);