Merge pull request #205 from matrix-org/markjh/megolm

Update the olm library version to 1.3.0

lib/client.js

@@ -156,6 +156,8 @@ function MatrixClient(opts) {
             opts.sessionStore,
             userId, this.deviceId
         );
+
+        this.olmVersion = Crypto.getOlmVersion();
     }
 }
 utils.inherits(MatrixClient, EventEmitter);

lib/crypto/OlmDevice.js

@@ -72,6 +72,14 @@ function _initialise_account(sessionStore, pickleKey, account) {
     sessionStore.storeEndToEndAccount(pickled);
 }
 
+/**
+ * @return {array} The version of Olm.
+ */
+OlmDevice.getOlmVersion = function() {
+    return Olm.get_library_version();
+};
+
+
 /**
  * extract our OlmAccount from the session store and call the given function
  *
@@ -597,7 +605,12 @@ OlmDevice.prototype.addInboundGroupSession = function(
     var self = this;
     var session = new Olm.InboundGroupSession();
     try {
-        session.create(chainIndex, sessionKey);
+        session.create(sessionKey);
+        if (sessionId != session.session_id()) {
+            throw new Error(
+                "Mismatched group session ID from senderKey: " + senderKey
+            );
+        }
         self._saveInboundGroupSession(roomId, senderKey, sessionId, session);
     } finally {
         session.free();

lib/crypto/algorithms/megolm.js

@@ -124,7 +124,7 @@ MegolmEncryption.prototype._prepareNewSession = function(room) {
 
     this._olmDevice.addInboundGroupSession(
         this._roomId, this._olmDevice.deviceCurve25519Key, session_id,
-        key.key, key.chain_index
+        key.key
     );
 
     // we're going to share the key with all current members of the room,
@@ -403,8 +403,7 @@ MegolmDecryption.prototype.onRoomKeyEvent = function(event) {
 
     if (!content.room_id ||
         !content.session_id ||
-        !content.session_key ||
-        content.chain_index === undefined
+        !content.session_key
        ) {
         console.error("key event is missing fields");
         return;
@@ -412,7 +411,7 @@ MegolmDecryption.prototype.onRoomKeyEvent = function(event) {
 
     this._olmDevice.addInboundGroupSession(
         content.room_id, event.getSenderKey(), content.session_id,
-        content.session_key, content.chain_index, event.getKeysClaimed()
+        content.session_key, event.getKeysClaimed()
     );
 };
 

lib/crypto/index.js

@@ -135,6 +135,13 @@ function _registerEventHandlers(crypto, eventEmitter) {
     });
 }
 
+/**
+ * @return {string} The version of Olm.
+ */
+Crypto.getOlmVersion = function() {
+    return OlmDevice.getOlmVersion();
+};
+
 /**
  * Get the Ed25519 key for this device
  *

package.json

@@ -39,6 +39,6 @@
     "uglifyjs": "^2.4.10"
   },
   "optionalDependencies": {
-    "olm": "https://matrix.org/packages/npm/olm/olm-1.2.0.tgz"
+    "olm": "https://matrix.org/packages/npm/olm/olm-1.3.0.tgz"
   }
 }

spec/unit/crypto.spec.js

@@ -0,0 +1,14 @@
+
+"use strict";
+var Crypto = require("../../lib/crypto");
+var sdk = require("../..");
+
+describe("Crypto", function() {
+    if (!sdk.CRYPTO_ENABLED) {
+        return;
+    }
+
+    it("Crypto exposes the correct olm library version", function() {
+        expect(Crypto.getOlmVersion()).toEqual([1, 3, 0]);
+    });
+});