From c29af5f658ad457e429d5acda62415487f4e22e2 Mon Sep 17 00:00:00 2001
From: JDonadio <tanojaja@gmail.com>
Date: Thu, 30 Mar 2017 11:31:23 -0300
Subject: [PATCH] attempts limit - remaining time

---
 src/js/controllers/pin.js        | 97 +++++++++++++++++++++++++++++---
 src/js/services/configService.js |  2 +
 src/sass/views/pin.scss          |  5 +-
 www/views/pin.html               |  9 ++-
 4 files changed, 101 insertions(+), 12 deletions(-)

diff --git a/src/js/controllers/pin.js b/src/js/controllers/pin.js
index 411683e3e..9d78b9e65 100644
--- a/src/js/controllers/pin.js
+++ b/src/js/controllers/pin.js
@@ -1,22 +1,93 @@
 'use strict';
 
-angular.module('copayApp.controllers').controller('pinController', function($state, $stateParams, $ionicHistory, $timeout, $scope, $log, configService, appConfigService) {
+angular.module('copayApp.controllers').controller('pinController', function($state, $interval, $stateParams, $ionicHistory, $timeout, $scope, $log, configService, appConfigService) {
   var PIN = 'pin';
+  var ATTEPMPTS_LIMIT = 3;
 
   $scope.$on("$ionicView.beforeEnter", function(event) {
     $scope.currentPin = $scope.confirmPin = '';
     $scope.fromSettings = $stateParams.fromSettings == 'true' ? true : false;
     $scope.locking = $stateParams.locking == 'true' ? true : false;
-    $scope.match = false;
-    $scope.error = false;
+    $scope.match = $scope.error = $scope.disableButtons = false;
+    $scope.currentAttempts = 0;
     $scope.appName = appConfigService.name;
   });
 
+  $scope.$on("$ionicView.enter", function(event) {
+    configService.whenAvailable(function(config) {
+      $scope.bannedUntil = config.lock.bannedUntil || null;
+      if ($scope.bannedUntil) {
+        var now = Math.floor(Date.now() / 1000);
+        if (now < $scope.bannedUntil) {
+          $scope.error = $scope.disableButtons = true;
+          lockTimeControl($scope.bannedUntil);
+        }
+      }
+    });
+  });
+
+  function checkAttempts() {
+    $scope.currentAttempts += 1;
+    $log.debug('Attempts to unlock:', $scope.currentAttempts);
+    if ($scope.currentAttempts === 3) {
+      $scope.currentAttempts = 0;
+      var limitTime = Math.floor(Date.now() / 1000) + 5 * 60;
+      var config = configService.getSync();
+      var opts = {
+        lock: {
+          method: PIN,
+          value: config.lock.value,
+          bannedUntil: limitTime,
+          attempts: config.lock.attempts + 1,
+        }
+      };
+
+      configService.set(opts, function(err) {
+        if (err) $log.debug(err);
+        lockTimeControl(limitTime);
+      });
+    }
+  };
+
+  function lockTimeControl(limitTime) {
+    $scope.limitTimeExpired = false;
+    setExpirationTime();
+
+    var countDown = $interval(function() {
+      setExpirationTime();
+    }, 1000);
+
+    function setExpirationTime() {
+      var now = Math.floor(Date.now() / 1000);
+      if (now > limitTime) {
+        $scope.limitTimeExpired = true;
+        if (countDown) reset();
+      } else {
+        $scope.disableButtons = true;
+        var totalSecs = limitTime - now;
+        var m = Math.floor(totalSecs / 60);
+        var s = totalSecs % 60;
+        $scope.expires = ('0' + m).slice(-2) + ":" + ('0' + s).slice(-2);
+      }
+    };
+
+    function reset() {
+      $scope.expires = $scope.error = $scope.disableButtons = null;
+      $scope.currentPin = $scope.confirmPin = '';
+      $interval.cancel(countDown);
+      $timeout(function() {
+        $scope.$apply();
+      });
+      return;
+    };
+  };
+
   $scope.getFilledClass = function(limit) {
     return $scope.currentPin.length >= limit ? 'filled-' + $scope.appName : null;
   };
 
   $scope.delete = function() {
+    if ($scope.disableButtons) return;
     if ($scope.currentPin.length > 0) {
       $scope.currentPin = $scope.currentPin.substring(0, $scope.currentPin.length - 1);
       $scope.error = false;
@@ -30,6 +101,7 @@ angular.module('copayApp.controllers').controller('pinController', function($sta
   };
 
   $scope.updatePin = function(value) {
+    if ($scope.disableButtons) return;
     $scope.error = false;
     if (value && !$scope.isComplete()) {
       $scope.currentPin = $scope.currentPin + value;
@@ -46,11 +118,17 @@ angular.module('copayApp.controllers').controller('pinController', function($sta
     $scope.match = config.lock && config.lock.method == PIN && config.lock.value == $scope.currentPin ? true : false;
     if (!$scope.locking) {
       if ($scope.match) {
-        $scope.fromSettings ? saveSettings() : $scope.close(150);
-        $scope.error = false;
+        if ($scope.fromSettings) saveSettings();
+        else {
+          saveSettings(PIN, $scope.currentPin);
+          $scope.error = false;
+        }
       } else {
-        $scope.confirmPin = $scope.currentPin = '';
-        $scope.error = true;
+        $timeout(function() {
+          $scope.confirmPin = $scope.currentPin = '';
+          $scope.error = true;
+        }, 200);
+        checkAttempts();
       }
     } else {
       processCodes();
@@ -59,8 +137,8 @@ angular.module('copayApp.controllers').controller('pinController', function($sta
 
   function processCodes() {
     if (!$scope.confirmPin) {
-      $scope.confirmPin = $scope.currentPin;
       $timeout(function() {
+        $scope.confirmPin = $scope.currentPin;
         $scope.currentPin = '';
       }, 200);
     } else {
@@ -77,10 +155,13 @@ angular.module('copayApp.controllers').controller('pinController', function($sta
   };
 
   function saveSettings(method, value) {
+    var config = configService.getSync();
     var opts = {
       lock: {
         method: method || '',
         value: value || '',
+        bannedUntil: null,
+        attempts: config.lock.attempts + 1,
       }
     };
 
diff --git a/src/js/services/configService.js b/src/js/services/configService.js
index b60e1cb13..3d979af7f 100644
--- a/src/js/services/configService.js
+++ b/src/js/services/configService.js
@@ -56,6 +56,8 @@ angular.module('copayApp.services').factory('configService', function(storageSer
     lock: {
       method: '',
       value: '',
+      bannedUntil: null,
+      attempts: null,
     },
 
     // External services
diff --git a/src/sass/views/pin.scss b/src/sass/views/pin.scss
index 6f3733230..3d695f185 100644
--- a/src/sass/views/pin.scss
+++ b/src/sass/views/pin.scss
@@ -25,9 +25,11 @@
     .block-text {
       align-items: center;
       background-color: #F1F1F1;
-      text-align: center;
       height: 30%;
       border-bottom: 1px solid #c5c5c5;
+      .message {
+        margin: auto;
+      }
       span {
         width: 60%;
         margin: 10% auto;
@@ -88,5 +90,6 @@
   }
   .error {
     color: #f13333;
+    max-width: 70%;
   }
 }
diff --git a/www/views/pin.html b/www/views/pin.html
index f1c4f6fa0..613bd3a66 100644
--- a/www/views/pin.html
+++ b/www/views/pin.html
@@ -5,9 +5,12 @@
   </ion-nav-bar>
   <div class="content">
     <div class="block-text row">
-      <span translate ng-if="!confirmPin && !error">Please enter your mobile unlock code</span>
-      <span translate ng-if="confirmPin && !error">Confirm your mobile unlock code</span>
-      <span translate ng-if="error" class="error">Incorrect code, try again.</span>
+      <div class="message" ng-if="!confirmPin && !error" translate>Please enter your unlock PIN</div>
+      <div class="message" ng-if="confirmPin && !error" translate>Confirm your unlock PIN</div>
+      <div class="message error" ng-if="error">
+        <div ng-if="!expires" translate>Incorrect PIN, try again.</div>
+        <time ng-if="expires" translate>You have incorrectly typed your PIN. Try again in {{expires}}</time>
+      </div>
     </div>
     <div class="app-icon">
       <i class="icon big-icon-svg">