Merge pull request #686 from maraoz/automatic/backup

Automatic backup after create/join

js/services/backupService.js

@@ -0,0 +1,47 @@
+'use strict';
+
+var BackupService = function() {};
+
+BackupService.prototype.getName = function(wallet) {
+  return (wallet.name ? (wallet.name+'-') : '') + wallet.id;
+};
+
+BackupService.prototype.download = function(wallet) {
+  var ew = wallet.toEncryptedObj();
+  var timestamp = +(new Date());
+  var walletName = this.getName(wallet);
+  var filename = walletName + '-' + timestamp + '-keybackup.json.aes';
+  var blob = new Blob([ew], {
+    type: 'text/plain;charset=utf-8'
+  });
+  // show a native save dialog if we are in the shell
+  // and pass the wallet to the shell to convert to node Buffer
+  if (window.cshell) {
+    return window.cshell.send('backup:download', {
+      name: walletName,
+      wallet: ew
+    });
+  }
+  // otherwise lean on the browser implementation
+  saveAs(blob, filename);
+};
+
+BackupService.prototype.sendEmail = function(email, wallet) {
+  var ew = wallet.toEncryptedObj();
+  var body = ew;
+  var subject = this.getName(wallet);
+  var href = 'mailto:' + email + '?' + 'subject=[Copay Backup] ' + subject + '&' + 'body=' + body;
+
+  if (window.cshell) {
+    return window.cshell.send('backup:email', href);
+  }
+
+  var newWin = window.open(href, '_blank', 'scrollbars=yes,resizable=yes,width=10,height=10');
+  if (newWin) {
+    setTimeout(function() {
+      newWin.close();
+    }, 1000);
+  }
+};
+
+angular.module('copayApp.services').value('backupService', new BackupService());