From 2838b3ecd2c524e4170de7f4487a8e9f86f6a4f8 Mon Sep 17 00:00:00 2001
From: Mario Colque <colquemario@gmail.com>
Date: Thu, 17 Apr 2014 18:02:20 -0300
Subject: [PATCH] added support for the wallet backups

---
 bower.json               |  3 ++-
 index.html               |  7 ++---
 js/controllers/backup.js | 58 +++++++++++++++++++++++++++++++++++++---
 js/models/core/Wallet.js | 45 ++++++++++++++++++++++++-------
 4 files changed, 97 insertions(+), 16 deletions(-)

diff --git a/bower.json b/bower.json
index cdd5f0b9c..950d050b1 100644
--- a/bower.json
+++ b/bower.json
@@ -14,6 +14,7 @@
     "angular-mocks": "~1.2.14",
     "mocha": "~1.18.2",
     "chai": "~1.9.1",
-    "crypto-js": "http://crypto-js.googlecode.com/files/CryptoJS%20v3.1.2.zip"
+    "crypto-js": "http://crypto-js.googlecode.com/files/CryptoJS%20v3.1.2.zip",
+    "file-saver": "*"
   }
 }
diff --git a/index.html b/index.html
index 1b8f93c30..d833911d2 100644
--- a/index.html
+++ b/index.html
@@ -288,19 +288,19 @@
         <h2>{{title}}</h2>
         <div class="row text-center">
           <div class="large-4 columns">
-            <a href="/" class="panel box-backup">
+            <a class="panel box-backup" ng-click="download()">
               <i class="fi-download size-72"></i>
               <p> Download File </p>
             </a>
           </div>
           <div class="large-4 columns">
-            <a href="/" class="panel box-backup">
+            <a class="panel box-backup" ng-click="dropbox()">
               <i class="fi-social-dropbox size-72"></i>
               <p> Backup to Dropbox </p>
             </a>
           </div>
           <div class="large-4 columns">
-            <a href="/" class="panel box-backup">
+            <a class="panel box-backup" ng-click="email()">
               <i class="fi-mail size-72"></i>
               <p> Backup to email </p>
             </a>
@@ -326,6 +326,7 @@
     <script src="lib/peerjs/peer.js"></script>
     <script src="lib/bitcore.js"></script>
     <script src="lib/crypto-js/rollups/aes.js"></script>
+    <script src="lib/file-saver/FileSaver.js"></script>
     <script src="js/copayBundle.js"></script>
 
 
diff --git a/js/controllers/backup.js b/js/controllers/backup.js
index e851e602c..565e88682 100644
--- a/js/controllers/backup.js
+++ b/js/controllers/backup.js
@@ -1,13 +1,65 @@
 'use strict';
 
 angular.module('copay.backup').controller('BackupController',
-  function($scope, $rootScope, $location) {
-
+  function($scope, $rootScope, $location, $window, $timeout) {
 
     if (!$rootScope.wallet.id) {
       $location.path('signin');
     }
 
-
     $scope.title = 'Backup';
+
+    var filename = $rootScope.wallet.id + '.json.aes';
+
+    // TODO: get the real encrypted wallet.
+    var _getEncryptedWallet = function() {
+      var wallet = JSON.stringify($rootScope.wallet.toObj());
+      return wallet;
+    };
+
+    var _getWalletBlob = function() {
+      var wallet = _getEncryptedWallet();
+      var blob = new Blob([wallet], {type: 'text/plain;charset=utf-8'});
+
+      return blob;
+    };
+
+    $scope.download = function() {
+      var blob = _getWalletBlob();
+      saveAs(blob, filename);
+    };
+
+    $scope.dropbox = function() { 
+      var blob = _getWalletBlob();
+      var url = $window.URL.createObjectURL(blob);
+
+      // TODO: send the blob to Dropbox, (if we can...)
+    };
+
+    $scope.email = function() {
+      var email = prompt('Please enter your email addres.');
+      var mailformat = /^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/;
+
+      if (!email.match(mailformat)) {
+        alert('Enter a valid email address');
+      } else {
+        if (email && email !== '') {
+          var body = _getEncryptedWallet();
+          console.log(body);
+          var subject = 'Copay Backup'; 
+          var href = 'mailto:' + email + '?'
+           + 'subject=' + subject + '&'
+           + 'body=' + 'body'; // TODO: Uncomment this when get the real encrypted wallet.
+
+          var newWin = $window.open(href, '_blank', 'scrollbars=yes,resizable=yes,width=10,height=10');
+
+          if (newWin) {
+            $timeout(function() {
+              newWin.close();
+            }, 1000);
+          }
+        }
+      }
+    };
+  
   });
diff --git a/js/models/core/Wallet.js b/js/models/core/Wallet.js
index 094016358..5969a34f0 100644
--- a/js/models/core/Wallet.js
+++ b/js/models/core/Wallet.js
@@ -122,6 +122,17 @@ Wallet.prototype._handleNetworkChange = function(newPeer) {
   this.sendTxProposals(newPeer);
 };
 
+Wallet.prototype._optsToObj = function () {
+  var obj = {
+    id: this.id,
+    spendUnconfirmed: this.spendUnconfirmed,
+    requiredCopayers: this.requiredCopayers,
+    totalCopayers: this.totalCopayers,
+  };
+
+  return obj;
+};
+
 Wallet.prototype.netStart = function() {
   var self = this;
   var net = this.network;
@@ -136,20 +147,36 @@ Wallet.prototype.netStart = function() {
 
 Wallet.prototype.store = function() {
   this.log('[Wallet.js.135:store:]'); //TODO
-  this.storage.set(this.id,'opts', {
-    id: this.id,
-    spendUnconfirmed: this.spendUnconfirmed,
-    requiredCopayers: this.requiredCopayers,
-    totalCopayers: this.totalCopayers,
-  });
-  this.storage.set(this.id,'publicKeyRing', this.publicKeyRing.toObj());
-  this.storage.set(this.id,'txProposals', this.txProposals.toObj());
-  this.storage.set(this.id,'privateKey', this.privateKey.toObj());
+  var wallet = this.toObj();
+  this.storage.setFromObj(this.id, wallet);
 
   this.log('[Wallet.js.146] EMIT REFRESH'); //TODO
   this.emit('refresh');
+
 };
 
+Wallet.prototype.toObj = function() {
+  var optsObj = this._optsToObj();
+  var walletObj = {
+    opts: optsObj,
+    publicKeyring: this.publicKeyRing.toObj(),
+    txProposals: this.txProposals.toObj(),
+    privateKey: this.privateKey.toObj()
+  };
+
+  return walletObj;
+};
+
+Wallet.fromObj = function(wallet) {
+  var opts = wallet.opts;
+  opts['publicKeyRing'] = this.publicKeyring.fromObj(wallet.publicKeyRing);
+  opts['txProposals'] = this.txProposal.fromObj(wallet.txProposals);
+  opts['privateKey'] = this.privateKey.fromObj(wallet.privateKey);
+
+  var w = new Wallet(opts);
+
+  return w;
+};
 
 Wallet.prototype.sendTxProposals = function(recipients) {
   this.log('### SENDING txProposals TO:', recipients||'All', this.txProposals);