Fixed "Authorization Failed" error screens when not logged in

no issue
- `/config/` can only be requested when authenticated
- updated `/config/` mock to look for an Authentication header and return a 403 if it's missing
- updated `ajax` service to add an `Authentication` header when authenticated in testing env (cookies are not present when testing)
- updated `config` service to add `fetchUnauthenticated()` and `fetchAuthenticated()` methods in addition to `.fetch()`
- updated `application` route to only fetch authenticated config when authenticated
- updated `signin` controller to correctly fetch config after sign-in

ghost/admin/app/controllers/signin.js

@@ -45,7 +45,7 @@ export default Controller.extend(ValidationEngine, {
             let promises = [];
 
             promises.pushObject(this.get('settings').fetch());
-            promises.pushObject(this.get('config').fetchPrivate());
+            promises.pushObject(this.get('config').fetchAuthenticated());
 
             // fetch settings and private config for synchronous access
             yield RSVP.all(promises);

ghost/admin/app/routes/application.js

@@ -43,7 +43,7 @@ export default Route.extend(ApplicationRouteMixin, ShortcutsRoute, {
     routeAfterAuthentication: 'posts',
 
     beforeModel() {
-        return this.get('config').fetch();
+        return this.get('config').fetchUnauthenticated();
     },
 
     afterModel(model, transition) {
@@ -53,6 +53,7 @@ export default Route.extend(ApplicationRouteMixin, ShortcutsRoute, {
             this.set('appLoadTransition', transition);
             transition.send('loadServerNotifications');
 
+            let configPromise = this.get('config').fetchAuthenticated();
             let featurePromise = this.get('feature').fetch();
             let settingsPromise = this.get('settings').fetch();
             let tourPromise = this.get('tour').fetchViewed();
@@ -60,6 +61,7 @@ export default Route.extend(ApplicationRouteMixin, ShortcutsRoute, {
             // return the feature/settings load promises so that we block until
             // they are loaded to enable synchronous access everywhere
             return RSVP.all([
+                configPromise,
                 featurePromise,
                 settingsPromise,
                 tourPromise

ghost/admin/app/services/ajax.js

@@ -118,6 +118,8 @@ export function isThemeValidationError(errorOrStatus, payload) {
 let ajaxService = AjaxService.extend({
     session: service(),
 
+    isTesting: undefined,
+
     // flag to tell our ESA authenticator not to try an invalidate DELETE request
     // because it's been triggered by this service's 401 handling which means the
     // DELETE would fail and get stuck in an infinite loop
@@ -130,9 +132,20 @@ let ajaxService = AjaxService.extend({
         headers['X-Ghost-Version'] = config.APP.version;
         headers['App-Pragma'] = 'no-cache';
 
+        if (this.session.isAuthenticated && this.isTesting) {
+            headers.Authorization = 'Test';
+        }
+
         return headers;
     }).volatile(),
 
+    init() {
+        this._super(...arguments);
+        if (this.isTesting === undefined) {
+            this.isTesting = config.environment === 'test';
+        }
+    },
+
     // ember-ajax recognises `application/vnd.api+json` as a JSON-API request
     // and formats appropriately, we want to handle `application/json` the same
     _makeRequest(hash) {

ghost/admin/app/services/config.js

@@ -9,6 +9,7 @@ const {_ProxyMixin} = Ember;
 export default Service.extend(_ProxyMixin, {
     ajax: service(),
     ghostPaths: service(),
+    session: service(),
 
     content: null,
 
@@ -18,23 +19,37 @@ export default Service.extend(_ProxyMixin, {
     },
 
     fetch() {
+        let promises = [];
+
+        promises.push(this.fetchUnauthenticated());
+
+        if (this.session.isAuthenticated) {
+            promises.push(this.fetchAuthenticated());
+        }
+
+        return RSVP.all(promises);
+    },
+
+    fetchUnauthenticated() {
         let siteUrl = this.ghostPaths.url.api('site');
+        return this.ajax.request(siteUrl).then(({site}) => {
+            // normalize url to non-trailing-slash
+            site.blogUrl = site.url.replace(/\/$/, '');
+            site.blogTitle = site.title;
+            delete site.url;
+            delete site.title;
+
+            Object.assign(this.content, site);
+        }).then(() => {
+            this.notifyPropertyChange('content');
+        });
+    },
+
+    fetchAuthenticated() {
         let configUrl = this.ghostPaths.url.api('config');
-
-        return RSVP.all([
-            this.ajax.request(siteUrl).then(({site}) => {
-                // normalize url to non-trailing-slash
-                site.blogUrl = site.url.replace(/\/$/, '');
-                site.blogTitle = site.title;
-                delete site.url;
-                delete site.title;
-
-                Object.assign(this.content, site);
-            }),
-            this.ajax.request(configUrl).then(({config}) => {
-                Object.assign(this.content, config);
-            })
-        ]).then(() => {
+        return this.ajax.request(configUrl).then(({config}) => {
+            Object.assign(this.content, config);
+        }).then(() => {
             this.notifyPropertyChange('content');
         });
     },

ghost/admin/mirage/config/config.js

@@ -1,7 +1,18 @@
+import {Response} from 'ember-cli-mirage';
 import {isEmpty} from '@ember/utils';
 
 export default function mockConfig(server) {
-    server.get('/config/', function ({db}) {
+    server.get('/config/', function ({db}, request) {
+        if (!request.requestHeaders.Authorization) {
+            return new Response(403, {}, {
+                errors: [{
+                    type: 'NoPermissionError',
+                    message: 'Authorization failed',
+                    context: 'Unable to determine the authenticated user or integration. Check that cookies are being passed through if using session authentication.'
+                }]
+            });
+        }
+
         if (isEmpty(db.configs)) {
             server.loadFixtures('configs');
         }