TSK-473 Redirect web application to no access when REST service is not present

web/src/app/app.module.ts

@@ -74,7 +74,7 @@ const DECLARATIONS = [
 
 export function startupServiceFactory(startupService: StartupService): () => Promise<any> {
   return (): Promise<any> => {
-    return startupService.load();
+    return startupService.load()
   };
 }
 

web/src/app/components/user-information/user-information.component.html

@@ -5,7 +5,7 @@
     </div>
   </div>
   <div class="user-info white">
-    <span>Logged as: {{userInformation.userId}}</span>
+    <span>Logged as: {{userInformation?.userId}}</span>
     <button type="button" class="btn btn-default white pull-right transparent" (click)="toogleRoles();" aria-expanded="true" aria-controls="roles">
       <span>Roles</span>
     </button>

web/src/app/components/user-information/user-information.component.ts

@@ -29,7 +29,9 @@ export class UserInformationComponent implements OnInit {
 
   ngOnInit() {
     this.userInformation = this.taskanaEngineService.currentUserInfo;
-    this.roles = '[' + this.taskanaEngineService.currentUserInfo.roles.join(',') + ']';
+    if (this.userInformation) {
+      this.roles = '[' + this.userInformation.roles.join(',') + ']';
+    }
   }
 
   toogleRoles() {

web/src/app/guards/domain-guard.ts

@@ -11,7 +11,7 @@ export class DomainGuard implements CanActivate {
     constructor(private domainService: DomainService, private errorModalService: ErrorModalService) { }
 
     canActivate() {
-        return this.domainService.getDomains().map(domain => {
+        return this.domainService.getDomains(true).map(domain => {
             return true;
         }).catch(() => {
             this.errorModalService.triggerError(new ErrorModel(

web/src/app/guards/user-guard.ts

@@ -11,7 +11,7 @@ import { WindowRefService } from 'app/services/window/window.service';
 @Injectable()
 export class UserGuard implements CanActivate {
     static roles = ['ADMIN', 'USER'];
-    constructor(private taskanaEngineService: TaskanaEngineService, public router: Router) { }
+    constructor(private taskanaEngineService: TaskanaEngineService, private router: Router) { }
     canActivate() {
         if (this.taskanaEngineService.hasRole(UserGuard.roles)) {
             return true;

web/src/app/services/domain/domain.service.ts

@@ -26,7 +26,7 @@ export class DomainService {
 
   // GET
   getDomains(forceRefresh = false): Observable<string[]> {
-    if (!this.dataObs$.observers.length || forceRefresh) {
+    if (forceRefresh) {
       this.httpClient.get<string[]>(this.url).subscribe(
         domains => {
           this.dataObs$.next(domains);

web/src/app/services/startup-service/startup.service.ts

@@ -1,11 +1,12 @@
 import { Observable } from 'rxjs/Observable';
 import { HttpClient } from '@angular/common/http';
-import { CanActivate } from '@angular/router';
+import { Router } from '@angular/router';
 import { environment } from 'app/../environments/environment';
-import { Injectable, Inject } from '@angular/core';
+import { Injectable, Inject, Injector } from '@angular/core';
 import { TitlesService } from 'app/services/titles/titles.service';
 import { CustomFieldsService } from 'app/services/custom-fields/custom-fields.service';
 import { TaskanaEngineService } from 'app/services/taskana-engine/taskana-engine.service';
+
 @Injectable()
 export class StartupService {
 
@@ -14,7 +15,8 @@ export class StartupService {
         private httpClient: HttpClient,
         private titlesService: TitlesService,
         private customFieldsService: CustomFieldsService,
-        private taskanaEngineService: TaskanaEngineService) { }
+        private taskanaEngineService: TaskanaEngineService,
+        private injector: Injector) { }
 
     load(): Promise<any> {
         return this.loadEnvironment();
@@ -25,7 +27,9 @@ export class StartupService {
             () => this.geCustomizedFieldsFilePromise()
         ).then(
             () => this.taskanaEngineService.getUserInformation()
-        )
+            ).catch(error => {
+                this.router.navigate(['no-role']);
+            });
     }
 
     getEnvironmentFilePromise() {
@@ -51,4 +55,8 @@ export class StartupService {
                 return Observable.of(true)
             });
     }
+
+    public get router(): Router {
+        return this.injector.get(Router);
+    }
 }