logging in by cookies

Core/Core/ClientApp/src/app/auth.guard.ts

@@ -13,7 +13,8 @@ export class AuthGuard implements CanActivate {
   canActivate(
     next: ActivatedRouteSnapshot,
     state: RouterStateSnapshot): Observable<boolean> | Promise<boolean> | boolean {
-    return true;
-    //return this.LoginService.IsLoggedIn;
+    //console.log("is logged in", this.LoginService.IsLoggedIn.source);
+    //return true;
+    return this.LoginService.IsLoggedIn;
   }
 }

Core/Core/ClientApp/src/app/login/login.service.ts

@@ -18,6 +18,12 @@ export class LoginService {
   }
   get IsLoggedIn(): Observable<boolean> {
+    if (this.LoginStatus)
+      this.LoginStatus.asObservable();
+
+    //user is maybe comeing back -> try to login by cookie
+    this.LoginByCookie();
+
     return this.LoginStatus.asObservable();
   }
@@ -27,6 +33,24 @@ export class LoginService {
   constructor(private HttpClient: HttpClient, private Router: Router) { }
+  private LoginByCookie(): boolean {
+    let loginstatus = localStorage.getItem('loginStatus');
+    if (!loginstatus || loginstatus !== '1')
+      return false;
+
+    let storedDate = localStorage.getItem('expiration');
+    if (!storedDate || /^\s*$/.test(storedDate))//blank / empty / undefined
+      return false;
+
+    let parsedStoredDate = new Date(storedDate);
+    if (!parsedStoredDate || new Date() > parsedStoredDate) //null or expired date
+      return false;
+
+    //JWT token will be checked with first api call
+    this.LoginStatus.next(true);
+    return true;
+  }
+
   login(username: string, password: string) {
     return this.HttpClient.post<any>('api/Login', { username, password }).pipe(
       map(result => {