Add a bunch of logging

to try & diagnose https://github.com/vector-im/riot-web/issues/7769

src/client.js

@@ -491,6 +491,7 @@ MatrixClient.prototype.initCrypto = async function() {
     }
 
     // initialise the list of encrypted rooms (whether or not crypto is enabled)
+    console.log("Crypto: initialising roomlist...");
     await this._roomList.init();
 
     const userId = this.getUserId();
@@ -525,6 +526,7 @@ MatrixClient.prototype.initCrypto = async function() {
         "crypto.warning",
     ]);
 
+    console.log("Crypto: initialising crypto object...");
     await crypto.init();
 
     this.olmVersion = Crypto.getOlmVersion();

src/crypto/index.js

@@ -197,8 +197,11 @@ utils.inherits(Crypto, EventEmitter);
  * Returns a promise which resolves once the crypto module is ready for use.
  */
 Crypto.prototype.init = async function() {
+    console.log("Crypto: initialising Olm...");
     await global.Olm.init();
+    console.log("Crypto: initialising Olm device...");
     await this._olmDevice.init();
+    console.log("Crypto: loading device list...");
     await this._deviceList.load();
 
     // build our device keys: these will later be uploaded
@@ -207,6 +210,7 @@ Crypto.prototype.init = async function() {
     this._deviceKeys["curve25519:" + this._deviceId] =
         this._olmDevice.deviceCurve25519Key;
 
+    console.log("Crypto: fetching own devices...");
     let myDevices = this._deviceList.getRawStoredDevicesForUser(
         this._userId,
     );
@@ -217,6 +221,7 @@ Crypto.prototype.init = async function() {
 
     if (!myDevices[this._deviceId]) {
         // add our own deviceinfo to the cryptoStore
+        console.log("Crypto: adding this device to the store...");
         const deviceInfo = {
             keys: this._deviceKeys,
             algorithms: this._supportedAlgorithms,
@@ -231,6 +236,7 @@ Crypto.prototype.init = async function() {
         this._deviceList.saveIfDirty();
     }
 
+    console.log("Crypto: checking for key backup...");
     this._checkAndStartKeyBackup();
 };
 

src/crypto/store/indexeddb-crypto-store-backend.js

@@ -694,6 +694,7 @@ function promiseifyTxn(txn) {
             if (txn._mx_abortexception !== undefined) {
                 reject(txn._mx_abortexception);
             } else {
+                console.log("Error performing indexeddb txn", event);
                 reject(event.target.error);
             }
         };

src/crypto/store/indexeddb-crypto-store.js

@@ -90,6 +90,7 @@ export default class IndexedDBCryptoStore {
             };
 
             req.onerror = (ev) => {
+                console.log("Error connecting to indexeddb", ev);
                 reject(ev.target.error);
             };
 
@@ -159,6 +160,7 @@ export default class IndexedDBCryptoStore {
             };
 
             req.onerror = (ev) => {
+                console.log("Error deleting data from indexeddb", ev);
                 reject(ev.target.error);
             };