Added i18n label and fixes

resources/i18n/en.json

@@ -165,5 +165,13 @@
       "header": "Log out from DSpace",
       "submit": "Log out"
     }
+  },
+  "auth": {
+    "messages": {
+      "expired": "Your session has expired. Please log in again."
+    },
+    "errors": {
+      "invalid-user": "Invalid email or password."
+    }
   }
 }

src/app/core/auth/auth.interceptor.ts

@@ -142,7 +142,7 @@ export class AuthInterceptor implements HttpInterceptor {
           } else if (this.isUnauthorized(error)) {
             // The access token provided is expired, revoked, malformed, or invalid for other reasons
             // Redirect to the login route
-            this.store.dispatch(new RedirectWhenTokenExpiredAction('Your session has expired. Please log in again.'));
+            this.store.dispatch(new RedirectWhenTokenExpiredAction('auth.messages.expired'));
           }
         }
         // Return error response as is.

src/app/core/auth/auth.service.ts

@@ -49,7 +49,7 @@ export class AuthService {
     // and is not the login route, clear redirect url and messages
     const routeUrlObs = this.store.select(routerStateSelector)
       .filter((routerState: RouterReducerState) => isNotUndefined(routerState) && isNotUndefined(routerState.state))
-      .filter((routerState: RouterReducerState) => (routerState.state.url !== LOGIN_ROUTE))
+      .filter((routerState: RouterReducerState) => !this.isLoginRoute(routerState.state.url))
       .map((routerState: RouterReducerState) => routerState.state.url);
     const redirectUrlObs = this.getRedirectUrl();
     routeUrlObs.pipe(
@@ -57,10 +57,23 @@ export class AuthService {
       map(([routeUrl, redirectUrl]) => [routeUrl, redirectUrl])
     ).filter(([routeUrl, redirectUrl]) => isNotEmpty(redirectUrl) && (routeUrl !== redirectUrl))
       .subscribe(() => {
-        this.setRedirectUrl(undefined);
+        this.clearRedirectUrl();
       });
   }
 
+  /**
+   * Check if is a login page route
+   *
+   * @param {string} url
+   * @returns {Boolean}.
+   */
+  protected isLoginRoute(url: string) {
+    const urlTree: UrlTree = this.router.parseUrl(url);
+    const g: UrlSegmentGroup = urlTree.root.children[PRIMARY_OUTLET];
+    const segment = '/' + g.toString();
+    return segment === LOGIN_ROUTE;
+  }
+
   /**
    * Authenticate the user
    *
@@ -175,7 +188,7 @@ export class AuthService {
         if (!status.authenticated) {
           return true;
         } else {
-          throw(new Error('Invalid email or password'));
+          throw(new Error('auth.errors.invalid-user'));
         }
       })
 
@@ -264,7 +277,7 @@ export class AuthService {
    */
   public redirectToLogin() {
     // Hard redirect to login page, so that all state is definitely lost
-    this._window.nativeWindow.location.href = LOGIN_ROUTE;
+    this._window.nativeWindow.location.href = LOGIN_ROUTE + '?expired=true';
   }
 
   /**
@@ -275,9 +288,7 @@ export class AuthService {
       .first()
       .subscribe((redirectUrl) => {
         if (isNotEmpty(redirectUrl)) {
-          // Clear redirect url
-          this.setRedirectUrl(undefined);
-          this.storage.remove(REDIRECT_COOKIE);
+          this.clearRedirectUrl();
 
           const urlTree: UrlTree = this.router.parseUrl(redirectUrl);
           const g: UrlSegmentGroup = urlTree.root.children[PRIMARY_OUTLET];
@@ -327,4 +338,12 @@ export class AuthService {
     this.storage.set(REDIRECT_COOKIE, url);
     this.store.dispatch(new SetRedirectUrlAction(isNotUndefined(url) ? url : ''));
   }
+
+  /**
+   * Clear redirect url
+   */
+  clearRedirectUrl() {
+    this.store.dispatch(new SetRedirectUrlAction(''));
+    this.storage.remove(REDIRECT_COOKIE);
+  }
 }

src/app/shared/log-in/log-in.component.html

@@ -17,8 +17,8 @@
          formControlName="password"
          required
          type="password">
-  <div *ngIf="platform.isBrowser && (error | async) && hasError" class="alert alert-danger" role="alert" @fadeOut>{{ error | async }}</div>
-  <div *ngIf="(message | async) && hasMessage" class="alert alert-info" role="alert" @fadeOut>{{ message | async }}</div>
+  <div *ngIf="platform.isBrowser && (error | async) && hasError" class="alert alert-danger" role="alert" @fadeOut>{{ (error | async) | translate }}</div>
+  <div *ngIf="(message | async) && hasMessage" class="alert alert-info" role="alert" @fadeOut>{{ (message | async) | translate }}</div>
   <button class="btn btn-lg btn-primary btn-block mt-3" type="submit" [disabled]="!form.valid">{{"login.form.submit" | translate}}</button>
   <div class="dropdown-divider"></div>
   <a class="dropdown-item" href="#">{{"login.form.new-user" | translate}}</a>