Fix redirection to previous state after required authentication

Fixes the issue with the previous state not being recorded, when the
unauthenticated user is redirected to the signin state, when trying to
access a restricted route.

Added a function that stores the provided state & state params, in the
$state.previous object. This has been implemented in the
$stateChangeSuccess event, and the callback of the $state.go transition
when the user is not allowed to access the requested route.

modules/core/client/app/init.js

@@ -30,22 +30,30 @@ angular.module(ApplicationConfiguration.applicationModuleName).run(function ($ro
         if (Authentication.user !== undefined && typeof Authentication.user === 'object') {
           $state.go('forbidden');
         } else {
-          $state.go('authentication.signin');
+          $state.go('authentication.signin').then(function () {
+            storePreviousState(toState, toParams);
+          });
         }
       }
     }
   });
 
   // Record previous state
   $rootScope.$on('$stateChangeSuccess', function (event, toState, toParams, fromState, fromParams) {
-    if (!fromState.data || !fromState.data.ignoreState) {
+    storePreviousState(fromState, fromParams);
+  });
+
+  // Store previous state
+  function storePreviousState(state, params) {
+    // only store this state if it shouldn't be ignored 
+    if (!state.data || !state.data.ignoreState) {
       $state.previous = {
-        state: fromState,
-        params: fromParams,
-        href: $state.href(fromState, fromParams)
+        state: state,
+        params: params,
+        href: $state.href(state, params)
       };
     }
-  });
+  }
 });
 
 //Then define the init function for starting up the application

modules/users/tests/client/authentication.client.controller.tests.js

@@ -8,6 +8,7 @@
       scope,
       $httpBackend,
       $stateParams,
+      $state,
       $location;
 
     beforeEach(function () {
@@ -59,6 +60,32 @@
           expect($location.url()).toEqual('/');
         });
 
+        it('should be redirected to previous state after successful login',
+          inject(function (_$state_) {
+            $state = _$state_;
+            $state.previous = {
+              state: {
+                name: 'articles.create'
+              },
+              params: {},
+              href: '/articles/create'
+            };
+
+            spyOn($state, 'transitionTo');
+            spyOn($state, 'go');
+
+            // Test expected GET request
+            $httpBackend.when('POST', '/api/auth/signin').respond(200, 'Fred');
+
+            scope.signin(true);
+            $httpBackend.flush();
+
+            // Test scope value
+            expect($state.go).toHaveBeenCalled();
+            expect($state.go).toHaveBeenCalledWith($state.previous.state.name, $state.previous.params);
+
+          }));
+
         it('should fail to log in with nothing', function () {
           // Test expected POST request
           $httpBackend.expectPOST('/api/auth/signin').respond(400, {