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Return a function instead of a session in decryptWhisperMessage

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Matt Corallo 2015-01-18 11:10:39 -10:00 committed by lilia
parent 3e648b0ea0
commit 30dd13e8e3
2 changed files with 20 additions and 10 deletions
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8
libaxolotl/protocol.js
View file

@ -457,7 +457,7 @@ window.axolotl.protocol = function() {
/*************************
*** Public crypto API ***
*************************/
// returns decrypted plaintext
// returns decrypted plaintext and a function that MUST BE CALLED SYNCHRONOUSLY if the message indicates session close
self.decryptWhisperMessage = function(encodedNumber, messageBytes, session, registrationId) {
if (messageBytes[0] != String.fromCharCode((3 << 4) | 3))
throw new Error("Bad version number on WhisperMessage");
@ -507,7 +507,11 @@ window.axolotl.protocol = function() {
delete session['pendingPreKey'];
removeOldChains(session);
crypto_storage.saveSession(encodedNumber, session, registrationId);
return [plaintext, session];
return [plaintext, function() {
closeSession(session, true);
removeOldChains(session);
crypto_storage.saveSession(encodedNumber, session, registrationId);
}];
});
});
});

22
libtextsecure/axolotl_wrapper.js
View file

@ -39,10 +39,20 @@
var decodeMessageContents = function(res) {
var finalMessage = textsecure.protobuf.PushMessageContent.decode(res[0]);
//TODO
if ((finalMessage.flags & textsecure.protobuf.PushMessageContent.Flags.END_SESSION)
== textsecure.protobuf.PushMessageContent.Flags.END_SESSION)
res[1]();
return finalMessage;
}
var decodeDeviceContents = function(res) {
var finalMessage = textsecure.protobuf.DeviceControl.decode(res[0]);
//TODO: Add END_SESSION flag for device control messages
/*if ((finalMessage.flags & textsecure.protobuf.PushMessageContent.Flags.END_SESSION)
== textsecure.protobuf.PushMessageContent.Flags.END_SESSION)
axolotl.protocol.closeSession(res[1], true);*/
res[1]();*/
return finalMessage;
}
@ -67,14 +77,10 @@
if (proto.message.readUint8() != ((3 << 4) | 3))
throw new Error("Bad version byte");
var from = proto.source + "." + (proto.sourceDevice == null ? 0 : proto.sourceDevice);
return axolotl.protocol.handlePreKeyWhisperMessage(from, getString(proto.message)).then(function(res) {
return textsecure.protobuf.DeviceControl.decode(res[0]);
});
return axolotl.protocol.handlePreKeyWhisperMessage(from, getString(proto.message)).then(decodeDeviceContents);
case textsecure.protobuf.IncomingPushMessageSignal.Type.DEVICE_CONTROL:
var from = proto.source + "." + (proto.sourceDevice == null ? 0 : proto.sourceDevice);
return axolotl.protocol.decryptWhisperMessage(from, getString(proto.message)).then(function(res) {
return textsecure.protobuf.DeviceControl.decode(res[0]);
});
return axolotl.protocol.decryptWhisperMessage(from, getString(proto.message)).then(decodeDeviceContents);
default:
return new Promise(function(resolve, reject) { reject(new Error("Unknown message type")); });
}