Settings screens redirect for certain roles

Closes #3291
- Adds redirects based on roles as defined in the case
- Adds new mixin `CurrentUserSettings`
- For authors, all settings pages redirect to `users/self`
- For editors, all settings pages other than specific users redirect to `users`. Any user that is not self or an author redirects to `users`

ghost/admin/mixins/current-user-settings.js

@@ -0,0 +1,31 @@
+var CurrentUserSettings = Ember.Mixin.create({
+	currentUser: function () {
+		return this.store.find('user', 'me');
+	},
+
+	transitionAuthor: function () {
+		var self = this;
+
+		return function (user) {
+			if (user.get('isAuthor')) {
+				return self.transitionTo('settings.users.user', user);
+			}
+
+			return user;
+		};
+	},
+
+	transitionEditor: function () {
+		var self = this;
+
+		return function (user) {
+			if (user.get('isEditor')) {
+				return self.transitionTo('settings.users');
+			}
+
+			return user;
+		};
+	}
+});
+
+export default CurrentUserSettings;

ghost/admin/routes/settings/apps.js

@@ -1,9 +1,16 @@
-var AppsRoute = Ember.Route.extend(SimpleAuth.AuthenticatedRouteMixin, {
+import CurrentUserSettings from 'ghost/mixins/current-user-settings';
+
+var AppsRoute = Ember.Route.extend(SimpleAuth.AuthenticatedRouteMixin, CurrentUserSettings, {
     beforeModel: function () {
         if (!this.get('config.apps')) {
-            this.transitionTo('settings.general');
+            return this.transitionTo('settings.general');
         }
+
+        return this.currentUser()
+            .then(this.transitionAuthor())
+            .then(this.transitionEditor());
     },
+    
     model: function () {
         return this.store.find('app');
     }

ghost/admin/routes/settings/general.js

@@ -1,6 +1,13 @@
 import loadingIndicator from 'ghost/mixins/loading-indicator';
+import CurrentUserSettings from 'ghost/mixins/current-user-settings';
+
+var SettingsGeneralRoute = Ember.Route.extend(SimpleAuth.AuthenticatedRouteMixin, loadingIndicator, CurrentUserSettings, {
+    beforeModel: function () {
+        return this.currentUser()
+            .then(this.transitionAuthor())
+            .then(this.transitionEditor());
+    },
 
-var SettingsGeneralRoute = Ember.Route.extend(SimpleAuth.AuthenticatedRouteMixin, loadingIndicator, {
     model: function () {
         return this.store.find('setting', { type: 'blog,theme' }).then(function (records) {
             return records.get('firstObject');

ghost/admin/routes/settings/index.js

@@ -1,24 +1,32 @@
 import {mobileQuery} from 'ghost/utils/mobile';
+import CurrentUserSettings from 'ghost/mixins/current-user-settings';
 
-var SettingsIndexRoute = Ember.Route.extend(SimpleAuth.AuthenticatedRouteMixin, {
+var SettingsIndexRoute = Ember.Route.extend(SimpleAuth.AuthenticatedRouteMixin, CurrentUserSettings, {
     // redirect to general tab, unless on a mobile phone
     beforeModel: function () {
+        var self = this;
+        this.currentUser()
+            .then(this.transitionAuthor())
+            .then(this.transitionEditor())
+            .then(function () {
                 if (!mobileQuery.matches) {
-            this.transitionTo('settings.general');
+                    self.transitionTo('settings.general');
                 } else {
                     //fill the empty {{outlet}} in settings.hbs if the user
                     //goes to fullscreen
 
                     //fillOutlet needs special treatment so that it is
                     //properly bound to this when called from a MQ event
-            this.set('fillOutlet', _.bind(function fillOutlet(mq) {
+                    self.set('fillOutlet', _.bind(function fillOutlet(mq) {
                         if (!mq.matches) {
-                    this.transitionTo('settings.general');
+                            self.transitionTo('settings.general');
                         }
-            }, this));
+                    }, self));
-            mobileQuery.addListener(this.fillOutlet);
+                    mobileQuery.addListener(self.fillOutlet);
                 }
+            });
     },
+    
     deactivate: function () {
         if (this.get('fillOutlet')) {
             mobileQuery.removeListener(this.fillOutlet);

ghost/admin/routes/settings/users.js

@@ -1,3 +1,10 @@
-var UsersRoute = Ember.Route.extend(SimpleAuth.AuthenticatedRouteMixin);
+import CurrentUserSettings from 'ghost/mixins/current-user-settings';
+
+var UsersRoute = Ember.Route.extend(SimpleAuth.AuthenticatedRouteMixin, CurrentUserSettings, {
+    beforeModel: function () {
+        return this.currentUser()
+            .then(this.transitionAuthor());
+    }
+});
 
 export default UsersRoute;

ghost/admin/routes/settings/users/user.js

@@ -9,6 +9,20 @@ var SettingsUserRoute = Ember.Route.extend({
         });
     },
 
+    afterModel: function (user) {
+        var self = this;
+        this.store.find('user', 'me').then(function (currentUser) {
+            var isOwnProfile = user.get('id') === currentUser.get('id'),
+                isAuthor = currentUser.get('isAuthor'),
+                isEditor = currentUser.get('isEditor');
+            if (isAuthor && !isOwnProfile) {
+                self.transitionTo('settings.users.user', currentUser);
+            } else if (isEditor && !isOwnProfile && !user.get('isAuthor')) {
+                self.transitionTo('settings.users');
+            }
+        });
+    },
+
     deactivate: function () {
         var model = this.modelFor('settings.users.user');