Fixes import for 0.6.4

copay.js

@@ -13,6 +13,7 @@ var Insight = module.exports.Insight = require('./js/models/Insight');
 
 module.exports.Identity = require('./js/models/Identity');
 module.exports.Wallet = require('./js/models/Wallet');
+module.exports.Compatibility = require('./js/models/Compatibility');
 module.exports.PluginManager = require('./js/models/PluginManager');
 module.exports.version = require('./version').version;
 module.exports.commitHash = require('./version').commitHash;

js/controllers/import.js

@@ -39,7 +39,7 @@ angular.module('copayApp.controllers').controller('ImportController',
           controllerUtils.setFocusedWallet(w);
           return;
         }
-          
+
         // if it was used, we need to scan for indices
         w.updateIndexes(function(err) {
           updateStatus('Importing wallet - We are almost there...');
@@ -50,7 +50,7 @@ angular.module('copayApp.controllers').controller('ImportController',
           controllerUtils.installWalletHandlers($scope, w);
           controllerUtils.setFocusedWallet(w);
         });
-      }); 
+      });
     };
 
     $scope.openFileDialog = function() {
@@ -65,7 +65,17 @@ angular.module('copayApp.controllers').controller('ImportController',
       reader.onloadend = function(evt) {
         if (evt.target.readyState == FileReader.DONE) { // DONE == 2
           var encryptedObj = evt.target.result;
-          _importBackup(encryptedObj);
+          Compatibility.importEncryptedWallet($rootScope.iden, encryptedObj, $scope.password, {},
+            function(err, wallet){
+              if (err) {
+                notification.error('Error', 'Could not read wallet. Please check your password');
+              } else {
+                controllerUtils.installWalletHandlers($scope, wallet);
+                controllerUtils.setFocusedWallet(wallet);
+                return;
+              }
+            }
+          );
         }
       };
     };
@@ -94,10 +104,21 @@ angular.module('copayApp.controllers').controller('ImportController',
         reader.readAsBinaryString(backupFile);
       }
       else {
+          Compatibility.importEncryptedWallet($rootScope.iden, backupText, $scope.password, {},
+            function(err, wallet){
+              if (err) {
+                notification.error('Error', 'Could not read wallet. Please check your password');
+              } else {
+                controllerUtils.installWalletHandlers($scope, wallet);
+                controllerUtils.setFocusedWallet(wallet);
+                return;
+              }
+            }
+          );
         try {
           _importBackup(backupText);
         } catch(e) {
-          Compatibility.preDotEightImportWalletToStorage(backupText, $scope.password, $scope.skipPublicKeyRing, $scope.skipTxProposals);
+          Compatibility.importEncryptedWallet(backupText, $scope.password, $scope.skipPublicKeyRing, $scope.skipTxProposals);
         }
       }
     };

js/models/Compatibility.js

@@ -4,8 +4,13 @@ var Identity = require('./Identity');
 var Wallet = require('./Wallet');
 var cryptoUtils = require('../util/crypto');
 var CryptoJS = require('node-cryptojs-aes').CryptoJS;
+var sjcl = require('../../lib/sjcl');
+var preconditions = require('preconditions').instance();
+var _ = require('lodash');
 
 var Compatibility = {};
+Compatibility.iterations = 100;
+Compatibility.salt = 'mjuBtGybi/4=';
 
 /**
  * Reads from localstorage wallets saved previously to 0.8
@@ -41,10 +46,9 @@ Compatibility._getWalletIds = function(cb) {
  * @returns {Object}
  */
 Compatibility.importLegacy = function(encryptedWallet, passphrase) {
+  passphrase = this.kdf(passphrase);
   var ret = Compatibility._decrypt(encryptedWallet, passphrase);
   if (!ret) return null;
-  ret = ret.toString(CryptoJS.enc.Utf8);
-  ret = JSON.parse(ret);
   return ret;
 };
 
@@ -183,4 +187,47 @@ Compatibility.readWalletPre8 = function(walletId, password, cb) {
   }
 };
 
+Compatibility.importEncryptedWallet = function(identity, cypherText, password, opts, cb) {
+  var crypto = opts.cryptoUtil || cryptoUtils;
+  var key = crypto.kdf(password);
+  var obj = crypto.decrypt(key, cypherText);
+  if (!obj) {
+    console.warn("Could not decrypt, trying legacy..");
+    obj = Compatibility.importLegacy(cypherText, password);
+    if (!obj) {
+      return cb(new Error('Could not decrypt'))
+    }
+  };
+  try {
+    obj = JSON.parse(obj);
+  } catch (e) {
+    return cb(new Error('Could not read encrypted wallet'));
+  }
+  return identity.importWalletFromObj(obj, opts, cb);
+};
+
+/**
+ * @desc Generate a WordArray expanding a password
+ *
+ * @param {string} password - the password to expand
+ * @returns WordArray 512 bits with the expanded key generated from password
+ */
+Compatibility.kdf = function(password) {
+  var hash = sjcl.hash.sha256.hash(sjcl.hash.sha256.hash(password));
+  var salt = sjcl.codec.base64.toBits(this.salt);
+
+  var crypto2 = function(key, salt, iterations, length, alg) {
+    return sjcl.codec.hex.fromBits(sjcl.misc.pbkdf2(key, salt, iterations, length * 8,
+        alg == 'sha1' ? function(key) {
+        return new sjcl.misc.hmac(key, sjcl.hash.sha1)
+      } : null
+    ))
+  };
+
+  var key512 = crypto2(hash, salt, this.iterations, 64, 'sha1');
+  var sbase64 = sjcl.codec.base64.fromBits(sjcl.codec.hex.toBits(key512));
+  return sbase64;
+};
+
+
 module.exports = Compatibility;

js/services/compatibility.js

@@ -1,5 +1,5 @@
 'use strict';
 
-angular.module('copayApp.services').value('Compatibility', function() {
+angular.module('copayApp.services').factory('Compatibility', function() {
   return require('copay').Compatibility;
 });