Added refresh token functionality

package.json

@@ -86,7 +86,6 @@
     "@nguniversal/express-engine": "5.0.0-beta.5",
     "@ngx-translate/core": "9.1.1",
     "@ngx-translate/http-loader": "2.0.1",
-    "@types/js-cookie": "^2.1.0",
     "angular-idle-preload": "2.0.4",
     "body-parser": "1.18.2",
     "bootstrap": "4.0.0-beta",
@@ -102,6 +101,7 @@
     "js-cookie": "2.2.0",
     "js.clone": "0.0.3",
     "jsonschema": "1.2.2",
+    "jwt-decode": "^2.2.0",
     "methods": "1.1.2",
     "morgan": "1.9.0",
     "ngx-pagination": "3.0.3",
@@ -124,6 +124,7 @@
     "@types/express-serve-static-core": "4.11.1",
     "@types/hammerjs": "2.0.35",
     "@types/jasmine": "2.8.4",
+    "@types/js-cookie": "2.1.0",
     "@types/memory-cache": "0.2.0",
     "@types/mime": "2.0.0",
     "@types/node": "^9.3.0",

src/app/app.component.spec.ts

@@ -30,6 +30,8 @@ import { NativeWindowRef, NativeWindowService } from './shared/services/window.s
 
 import { MockTranslateLoader } from './shared/mocks/mock-translate-loader';
 import { MockMetadataService } from './shared/mocks/mock-metadata-service';
+import { PlatformServiceStub } from './shared/testing/platform-service-stub';
+import { PlatformService } from './shared/services/platform.service';
 
 let comp: AppComponent;
 let fixture: ComponentFixture<AppComponent>;
@@ -56,6 +58,7 @@ describe('App component', () => {
         { provide: GLOBAL_CONFIG, useValue: ENV_CONFIG },
         { provide: NativeWindowService, useValue: new NativeWindowRef() },
         { provide: MetadataService, useValue: new MockMetadataService() },
+        { provide: PlatformService, useValue: new PlatformServiceStub() },
         AppComponent
       ],
       schemas: [CUSTOM_ELEMENTS_SCHEMA]

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

@@ -8,7 +8,7 @@ import { Observable } from 'rxjs/Observable';
 import { isNotEmpty } from '../../shared/empty.util';
 import { AuthGetRequest, AuthPostRequest, PostRequest, RestRequest } from '../data/request.models';
 import { ResponseCacheEntry } from '../cache/response-cache.reducer';
-import { AuthSuccessResponse, ErrorResponse, RestResponse } from '../cache/response-cache.models';
+import { AuthStatusResponse, ErrorResponse, RestResponse } from '../cache/response-cache.models';
 import { HttpOptions } from '../dspace-rest-v2/dspace-rest-v2.service';
 
 @Injectable()
@@ -37,8 +37,8 @@ export class AuthRequestService extends HALEndpointService {
       errorResponse.flatMap((response: ErrorResponse) =>
         Observable.throw(new Error(response.errorMessage))),
       successResponse
-        .filter((response: AuthSuccessResponse) => isNotEmpty(response))
-        .map((response: AuthSuccessResponse) => response.response)
+        .filter((response: AuthStatusResponse) => isNotEmpty(response))
+        .map((response: AuthStatusResponse) => response.response)
         .distinctUntilChanged());
   }
 

src/app/core/auth/auth-response-parsing.service.ts

@@ -2,25 +2,15 @@ import { Inject, Injectable } from '@angular/core';
 
 import { AuthObjectFactory } from './auth-object-factory';
 import { BaseResponseParsingService } from '../data/base-response-parsing.service';
-import {
-  AuthErrorResponse,
-  AuthStatusResponse,
-  AuthSuccessResponse, ConfigSuccessResponse, ErrorResponse,
-  RestResponse
-} from '../cache/response-cache.models';
+import { AuthStatusResponse, RestResponse } from '../cache/response-cache.models';
 import { DSpaceRESTV2Response } from '../dspace-rest-v2/dspace-rest-v2-response.model';
-import { ConfigObject } from '../shared/config/config.model';
-import { ConfigType } from '../shared/config/config-type';
 import { GLOBAL_CONFIG } from '../../../config';
 import { GlobalConfig } from '../../../config/global-config.interface';
-import { isEmpty, isNotEmpty } from '../../shared/empty.util';
+import { isNotEmpty } from '../../shared/empty.util';
 import { ObjectCacheService } from '../cache/object-cache.service';
 import { ResponseParsingService } from '../data/parsing.service';
 import { RestRequest } from '../data/request.models';
 import { AuthType } from './auth-type';
-import { NormalizedObject } from '../cache/models/normalized-object.model';
-import { AuthTokenInfo } from './models/auth-token-info.model';
-import { NormalizedAuthStatus } from './models/normalized-auth-status.model';
 import { AuthStatus } from './models/auth-status.model';
 
 @Injectable()
@@ -29,18 +19,15 @@ export class AuthResponseParsingService extends BaseResponseParsingService imple
   protected objectFactory = AuthObjectFactory;
   protected toCache = false;
 
-  constructor(
-    @Inject(GLOBAL_CONFIG) protected EnvConfig: GlobalConfig,
-    protected objectCache: ObjectCacheService,
-  ) { super();
+  constructor(@Inject(GLOBAL_CONFIG) protected EnvConfig: GlobalConfig,
+              protected objectCache: ObjectCacheService,) {
+    super();
   }
 
   parse(request: RestRequest, data: DSpaceRESTV2Response): RestResponse {
     if (isNotEmpty(data.payload) && isNotEmpty(data.payload._links) && (data.statusCode === '200' || data.statusCode === 'OK')) {
       const response = this.process<AuthStatus, AuthType>(data.payload, request.href);
       return new AuthStatusResponse(response[Object.keys(response)[0]][0], data.statusCode);
-    } else if (isEmpty(data.payload) && isNotEmpty(data.headers.get('authorization')) && (data.statusCode === '200' || data.statusCode === 'OK')) {
-      return new AuthSuccessResponse(new AuthTokenInfo(data.headers.get('authorization')), data.statusCode);
     } else {
       return new AuthStatusResponse(data.payload as AuthStatus, data.statusCode);
     }

src/app/core/auth/auth.actions.ts

@@ -19,6 +19,9 @@ export const AuthActionTypes = {
   CHECK_AUTHENTICATION_TOKEN_ERROR: type('dspace/auth/CHECK_AUTHENTICATION_TOKEN_ERROR'),
   REDIRECT_TOKEN_EXPIRED: type('dspace/auth/REDIRECT_TOKEN_EXPIRED'),
   REDIRECT_AUTHENTICATION_REQUIRED: type('dspace/auth/REDIRECT_AUTHENTICATION_REQUIRED'),
+  REFRESH_TOKEN: type('dspace/auth/REFRESH_TOKEN'),
+  REFRESH_TOKEN_SUCCESS: type('dspace/auth/REFRESH_TOKEN_SUCCESS'),
+  REFRESH_TOKEN_ERROR: type('dspace/auth/REFRESH_TOKEN_ERROR'),
   RESET_MESSAGES: type('dspace/auth/RESET_MESSAGES'),
   LOG_OUT: type('dspace/auth/LOG_OUT'),
   LOG_OUT_ERROR: type('dspace/auth/LOG_OUT_ERROR'),
@@ -201,6 +204,43 @@ export class RedirectWhenTokenExpiredAction implements Action {
   }
 }
 
+/**
+ * Refresh authentication token.
+ * @class RefreshTokenAction
+ * @implements {Action}
+ */
+export class RefreshTokenAction implements Action {
+  public type: string = AuthActionTypes.REFRESH_TOKEN;
+  payload: AuthTokenInfo;
+
+  constructor(token: AuthTokenInfo) {
+    this.payload = token;
+  }
+}
+
+/**
+ * Refresh authentication token success.
+ * @class RefreshTokenSuccessAction
+ * @implements {Action}
+ */
+export class RefreshTokenSuccessAction implements Action {
+  public type: string = AuthActionTypes.REFRESH_TOKEN_SUCCESS;
+  payload: AuthTokenInfo;
+
+  constructor(token: AuthTokenInfo) {
+    this.payload = token;
+  }
+}
+
+/**
+ * Refresh authentication token error.
+ * @class RefreshTokenErrorAction
+ * @implements {Action}
+ */
+export class RefreshTokenErrorAction implements Action {
+  public type: string = AuthActionTypes.REFRESH_TOKEN_ERROR;
+}
+
 /**
  * Sign up.
  * @class RegistrationAction

src/app/core/auth/auth.effects.ts

@@ -18,7 +18,7 @@ import {
   AuthenticationErrorAction,
   AuthenticationSuccessAction, CheckAuthenticationTokenErrorAction,
   LogOutErrorAction,
-  LogOutSuccessAction, RegistrationAction,
+  LogOutSuccessAction, RefreshTokenAction, RefreshTokenErrorAction, RefreshTokenSuccessAction, RegistrationAction,
   RegistrationErrorAction,
   RegistrationSuccessAction
 } from './auth.actions';
@@ -41,11 +41,11 @@ export class AuthEffects {
     .ofType(AuthActionTypes.AUTHENTICATE)
     .switchMap((action: AuthenticateAction) => {
       return this.authService.authenticate(action.payload.email, action.payload.password)
+        .first()
         .map((response: AuthStatus) => new AuthenticationSuccessAction(response.token))
         .catch((error) => Observable.of(new AuthenticationErrorAction(error)));
     });
 
-  // It means "reacts to this action but don't send another"
   @Effect()
   public authenticateSuccess: Observable<Action> = this.actions$
     .ofType(AuthActionTypes.AUTHENTICATE_SUCCESS)
@@ -61,6 +61,7 @@ export class AuthEffects {
         .catch((error) => Observable.of(new AuthenticatedErrorAction(error)));
     });
 
+  // It means "reacts to this action but don't send another"
   @Effect({dispatch: false})
   public authenticatedError: Observable<Action> = this.actions$
     .ofType(AuthActionTypes.AUTHENTICATED_ERROR)
@@ -85,6 +86,21 @@ export class AuthEffects {
         .catch((error) => Observable.of(new RegistrationErrorAction(error)));
     });
 
+  @Effect()
+  public refreshToken: Observable<Action> = this.actions$
+    .ofType(AuthActionTypes.REFRESH_TOKEN)
+    .switchMap((action: RefreshTokenAction) => {
+      return this.authService.refreshAuthenticationToken(action.payload)
+        .map((token: AuthTokenInfo) => new RefreshTokenSuccessAction(token))
+        .catch((error) => Observable.of(new RefreshTokenErrorAction()));
+    });
+
+  // It means "reacts to this action but don't send another"
+  @Effect({dispatch: false})
+  public refreshTokenSuccess: Observable<Action> = this.actions$
+    .ofType(AuthActionTypes.REFRESH_TOKEN_SUCCESS)
+    .do((action: RefreshTokenSuccessAction) => this.authService.replaceToken(action.payload));
+
   /**
    * When the store is rehydrated in the browser,
    * clear a possible invalid token or authentication errors

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

@@ -1,40 +1,55 @@
 import { Injectable, Injector } from '@angular/core';
 import {
   HttpEvent, HttpInterceptor, HttpHandler, HttpRequest, HttpResponse,
-  HttpErrorResponse
+  HttpErrorResponse, HttpResponseBase
 } from '@angular/common/http';
 
 import { Observable } from 'rxjs/Rx';
 import 'rxjs/add/observable/throw'
 import 'rxjs/add/operator/catch';
 
+import { find } from 'lodash';
+
 import { AppState } from '../../app.reducer';
-import { AuthError } from './models/auth-error.model';
 import { AuthService } from './auth.service';
 import { AuthStatus } from './models/auth-status.model';
 import { AuthTokenInfo } from './models/auth-token-info.model';
-import { isNotEmpty } from '../../shared/empty.util';
-import { RedirectWhenTokenExpiredAction } from './auth.actions';
+import { isNotEmpty, isUndefined } from '../../shared/empty.util';
+import { RedirectWhenTokenExpiredAction, RefreshTokenAction } from './auth.actions';
 import { Store } from '@ngrx/store';
 
 @Injectable()
 export class AuthInterceptor implements HttpInterceptor {
+
+  // Intercetor is called twice per request,
+  // so to prevent RefreshTokenAction is dispatched twice
+  // we're creating a refresh token request list
+  protected refreshTokenRequestUrls = [];
+
   constructor(private inj: Injector, private store: Store<AppState>) { }
 
-  private isUnauthorized(status: number): boolean {
-    return status === 401 || status === 403;
+  private isUnauthorized(response: HttpResponseBase): boolean {
+    // invalid_token The access token provided is expired, revoked, malformed, or invalid for other reasons
+    return response.status === 401;
   }
 
-  private isAuthRequest(url: string): boolean {
-    return url.endsWith('/authn/login') || url.endsWith('/authn/logout') || url.endsWith('/authn/status');
+  private isSuccess(response: HttpResponseBase): boolean {
+    return response.status === 200;
   }
 
-  private isLoginResponse(url: string): boolean {
-    return url.endsWith('/authn/login');
+  private isAuthRequest(http: HttpRequest<any> | HttpResponseBase): boolean {
+    return http.url
+      && (http.url.endsWith('/authn/login')
+        || http.url.endsWith('/authn/logout')
+        || http.url.endsWith('/authn/status'));
   }
 
-  private isLogoutResponse(url: string): boolean {
-    return url.endsWith('/authn/logout');
+  private isLoginResponse(http: HttpRequest<any> | HttpResponseBase): boolean {
+    return http.url && http.url.endsWith('/authn/login');
+  }
+
+  private isLogoutResponse(http: HttpRequest<any> | HttpResponseBase): boolean {
+    return http.url && http.url.endsWith('/authn/logout');
   }
 
   private makeAuthStatusObject(authenticated:boolean, accessToken?: string, error?: string): AuthStatus {
@@ -55,27 +70,45 @@ export class AuthInterceptor implements HttpInterceptor {
 
     const authService = this.inj.get(AuthService);
 
-    // Get the auth header from the service.
-    const Authorization = authService.getAuthHeader();
+    const token = authService.getToken();
 
-    let authReq;
-    if (!this.isAuthRequest(req.url) && isNotEmpty(Authorization)) {
+    let newReq;
+    // Intercept a request that is not to the authentication endpoint
+    if (!this.isAuthRequest(req) && isNotEmpty(token)) {
+      authService.isTokenExpiring()
+        .filter((isExpiring) => isExpiring)
+        .subscribe(() => {
+          // If the current request url is already in the refresh token request list, skip it
+          if (isUndefined(find(this.refreshTokenRequestUrls, req.url))) {
+            // When a token is about to expire, refresh it
+            this.store.dispatch(new RefreshTokenAction(token));
+            this.refreshTokenRequestUrls.push(req.url);
+          }
+        });
+      // Get the auth header from the service.
+      const Authorization = authService.buildAuthHeader(token);
       // Clone the request to add the new header.
-       authReq = req.clone({headers: req.headers.set('authorization', Authorization)});
+      newReq = req.clone({headers: req.headers.set('authorization', Authorization)});
     } else {
-       authReq = req;
+      newReq = req;
     }
 
-    // Pass on the cloned request instead of the original request.
-    return next.handle(authReq)
+    // Pass on the new request instead of the original request.
+    return next.handle(newReq)
       .map((response) => {
-        if (response instanceof HttpResponse && response.status === 200 && (this.isLoginResponse(response.url) || this.isLogoutResponse(response.url))) {
+        // Intercept a Login/Logout response
+        if (response instanceof HttpResponse && this.isSuccess(response) && (this.isLoginResponse(response) || this.isLogoutResponse(response))) {
+          // It's a success Login/Logout response
           let authRes: HttpResponse<any>;
-          if (this.isLoginResponse(response.url)) {
-            const token = response.headers.get('authorization');
-            const expires = response.headers.get('expires');
-            authRes = response.clone({body: this.makeAuthStatusObject(true, token)});
+          if (this.isLoginResponse(response)) {
+            // login successfully
+            const newToken = response.headers.get('authorization');
+            authRes = response.clone({body: this.makeAuthStatusObject(true, newToken)});
+
+            // clean eventually refresh Requests list
+            this.refreshTokenRequestUrls = [];
           } else {
+            // logout successfully
             authRes = response.clone({body: this.makeAuthStatusObject(false)});
           }
           return authRes;
@@ -84,10 +117,12 @@ export class AuthInterceptor implements HttpInterceptor {
         }
       })
       .catch((error, caught) => {
-        // Intercept an unauthorized error response
-        if (error instanceof HttpErrorResponse && this.isUnauthorized(error.status)) {
+        // Intercept an error response
+        if (error instanceof HttpErrorResponse) {
           // Checks if is a response from a request to an authentication endpoint
-          if (this.isAuthRequest(error.url)) {
+          if (this.isAuthRequest(error)) {
+            // clean eventually refresh Requests list
+            this.refreshTokenRequestUrls = [];
             // Create a new HttpResponse and return it, so it can be handle properly by AuthService.
             const authResponse = new HttpResponse({
               body: this.makeAuthStatusObject(false, null, error.error),
@@ -97,14 +132,15 @@ export class AuthInterceptor implements HttpInterceptor {
               url: error.url
             });
             return Observable.of(authResponse);
-          } else {
+          } 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.'));
           }
-        } else {
+        }
         // Return error response as is.
         return Observable.throw(error);
-        }
       }) as any;
+
   }
 }

src/app/core/auth/auth.reducers.ts

@@ -32,6 +32,9 @@ export interface AuthState {
   // redirect url after login
   redirectUrl?: string;
 
+  // true when refreshing token
+  refreshing?: boolean;
+
   // the authenticated user
   user?: Eperson;
 }
@@ -108,12 +111,14 @@ export function authReducer(state: any = initialState, action: AuthActions): Aut
       });
 
     case AuthActionTypes.LOG_OUT_SUCCESS:
+    case AuthActionTypes.REFRESH_TOKEN_ERROR:
       return Object.assign({}, state, {
         authenticated: false,
         error: undefined,
         loaded: false,
         loading: false,
         info: undefined,
+        refreshing: false,
         user: undefined
       });
 
@@ -138,6 +143,16 @@ export function authReducer(state: any = initialState, action: AuthActions): Aut
     case AuthActionTypes.REGISTRATION_SUCCESS:
       return state;
 
+    case AuthActionTypes.REFRESH_TOKEN:
+      return Object.assign({}, state, {
+        refreshing: true,
+      });
+
+    case AuthActionTypes.REFRESH_TOKEN_SUCCESS:
+      return Object.assign({}, state, {
+        refreshing: false,
+      });
+
     case AuthActionTypes.RESET_MESSAGES:
       return Object.assign({}, state, {
         authenticated: state.authenticated,
@@ -159,7 +174,7 @@ export function authReducer(state: any = initialState, action: AuthActions): Aut
 
 /**
  * Returns true if the user is authenticated.
- * @function isAuthenticated
+ * @function _isAuthenticated
  * @param {State} state
  * @returns {boolean}
  */
@@ -167,7 +182,7 @@ export const _isAuthenticated = (state: AuthState) => state.authenticated;
 
 /**
  * Returns true if the authenticated has loaded.
- * @function isAuthenticatedLoaded
+ * @function _isAuthenticatedLoaded
  * @param {State} state
  * @returns {boolean}
  */
@@ -175,7 +190,7 @@ export const _isAuthenticatedLoaded = (state: AuthState) => state.loaded;
 
 /**
  * Return the users state
- * @function getAuthenticatedUser
+ * @function _getAuthenticatedUser
  * @param {State} state
  * @returns {User}
  */
@@ -183,7 +198,7 @@ export const _getAuthenticatedUser = (state: AuthState) => state.user;
 
 /**
  * Returns the authentication error.
- * @function getAuthenticationError
+ * @function _getAuthenticationError
  * @param {State} state
  * @returns {string}
  */
@@ -191,7 +206,7 @@ export const _getAuthenticationError = (state: AuthState) => state.error;
 
 /**
  * Returns the authentication info message.
- * @function getAuthenticationInfo
+ * @function _getAuthenticationInfo
  * @param {State} state
  * @returns {string}
  */
@@ -199,15 +214,23 @@ export const _getAuthenticationInfo = (state: AuthState) => state.info;
 
 /**
  * Returns true if request is in progress.
- * @function isLoading
+ * @function _isLoading
  * @param {State} state
  * @returns {boolean}
  */
 export const _isLoading = (state: AuthState) => state.loading;
 
+/**
+ * Returns true if a refresh token request is in progress.
+ * @function _isRefreshing
+ * @param {State} state
+ * @returns {boolean}
+ */
+export const _isRefreshing = (state: AuthState) => state.refreshing;
+
 /**
  * Returns the sign out error.
- * @function getLogOutError
+ * @function _getLogOutError
  * @param {State} state
  * @returns {string}
  */
@@ -215,7 +238,7 @@ export const _getLogOutError = (state: AuthState) => state.error;
 
 /**
  * Returns the sign up error.
- * @function getRegistrationError
+ * @function _getRegistrationError
  * @param {State} state
  * @returns {string}
  */
@@ -223,7 +246,7 @@ export const _getRegistrationError = (state: AuthState) => state.error;
 
 /**
  * Returns the redirect url.
- * @function getRedirectUrl
+ * @function _getRedirectUrl
  * @param {State} state
  * @returns {string}
  */

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

@@ -11,12 +11,13 @@ import { AuthStatus } from './models/auth-status.model';
 import { AuthTokenInfo, TOKENITEM } from './models/auth-token-info.model';
 import { isNotEmpty, isNotNull, isNotUndefined } from '../../shared/empty.util';
 import { CookieService } from '../../shared/services/cookie.service';
-import { getRedirectUrl, isAuthenticated } from './selectors';
+import { getRedirectUrl, isAuthenticated, isTokenRefreshing } from './selectors';
 import { AppState, routerStateSelector } from '../../app.reducer';
 import { Store } from '@ngrx/store';
 import { ResetAuthenticationMessagesAction, SetRedirectUrlAction } from './auth.actions';
 import { RouterReducerState } from '@ngrx/router-store';
 import { Router } from '@angular/router';
+import { CookieAttributes } from 'js-cookie';
 
 export const LOGIN_ROUTE = '/login';
 /**
@@ -110,11 +111,30 @@ export class AuthService {
   }
 
   /**
-   * Checks if token is present into storage
+   * Checks if token is present into storage and is not expired
    */
   public checkAuthenticationToken(): Observable<AuthTokenInfo> {
     const token = this.getToken();
-    return isNotEmpty(token) ? Observable.of(token) : Observable.throw(false);
+    return isNotEmpty(token) && !this.isTokenExpired() ? Observable.of(token) : Observable.throw(false);
+  }
+
+  /**
+   * Checks if token is present into storage
+   */
+  public refreshAuthenticationToken(token: AuthTokenInfo): Observable<AuthTokenInfo> {
+    const options: HttpOptions = Object.create({});
+    let headers = new HttpHeaders();
+    headers = headers.append('Accept', 'application/json');
+    headers = headers.append('Authorization', `Bearer ${token.accessToken}`);
+    options.headers = headers;
+    return this.authRequestService.postToEndpoint('login', {}, options)
+      .map((status: AuthStatus) => {
+        if (status.authenticated) {
+          return status.token;
+        } else {
+          throw(new Error('Not authenticated'));
+        }
+      });
   }
 
   /**
@@ -160,8 +180,7 @@ export class AuthService {
    * Retrieve authentication token info and make authorization header
    * @returns {string}
    */
-  public getAuthHeader(): string {
-    const token = this.getToken();
+  public buildAuthHeader(token): string {
     return (this._authenticated && isNotNull(token)) ? `Bearer ${token.accessToken}` : '';
   }
 
@@ -179,6 +198,31 @@ export class AuthService {
     }
   }
 
+  /**
+   * Check if a token is about to expire
+   * @returns {boolean}
+   */
+  public isTokenExpiring(): Observable<boolean> {
+    return this.store.select(isTokenRefreshing)
+      .first()
+      .map((isRefreshing: boolean) => {
+        if (this.isTokenExpired() || isRefreshing) {
+          return false;
+        } else {
+          const token = this.getToken();
+          return token.expires - (60 * 5 * 1000) < Date.now();
+        }
+      })
+  }
+
+  /**
+   * Check if a token is expired
+   * @returns {boolean}
+   */
+  public isTokenExpired(): boolean {
+    const token = this.getToken();
+    return token && token.expires < Date.now();
+  }
   /**
    * Save authentication token info
    *
@@ -186,7 +230,9 @@ export class AuthService {
    * @returns {AuthTokenInfo}
    */
   public storeToken(token: AuthTokenInfo) {
-    return this.storage.set(TOKENITEM, token);
+    const expires = new Date(token.expires);
+    const options: CookieAttributes = { expires: expires };
+    return this.storage.set(TOKENITEM, token, options);
   }
 
   /**
@@ -196,6 +242,14 @@ export class AuthService {
     return this.storage.remove(TOKENITEM);
   }
 
+  /**
+   * Replace authentication token info with a new one
+   */
+  public replaceToken(token: AuthTokenInfo) {
+    this.removeToken();
+    return this.storeToken(token);
+  }
+
   /**
    * Redirect to the login route
    */

src/app/core/auth/models/auth-token-info.model.ts

@@ -1,13 +1,15 @@
+import { default as decode } from 'jwt-decode';
+
 export const TOKENITEM = 'dsAuthInfo';
 
 export class AuthTokenInfo {
   public accessToken: string;
-  public expires?: number;
+  public expires: number;
 
-  constructor(token: string, expiresIn?: number) {
+  constructor(token: string) {
     this.accessToken = token.replace('Bearer ', '');
-    if (expiresIn) {
-      this.expires = expiresIn * 1000 + Date.now();
-    }
+    const tokenClaims = decode(this.accessToken);
+    // exp claim is in seconds, convert it se to milliseconds
+    this.expires = tokenClaims.exp * 1000;
   }
 }

src/app/core/auth/selectors.ts

@@ -74,6 +74,15 @@ export const isAuthenticatedLoaded = createSelector(getAuthState, auth._isAuthen
  */
 export const isAuthenticationLoading = createSelector(getAuthState, auth._isLoading);
 
+/**
+ * Returns true if the refresh token request is loading.
+ * @function isTokenRefreshing
+ * @param {AuthState} state
+ * @param {any} props
+ * @return {boolean}
+ */
+export const isTokenRefreshing = createSelector(getAuthState, auth._isRefreshing);
+
 /**
  * Returns the log out error.
  * @function getLogOutError

src/app/core/cache/response-cache.models.ts

@@ -77,23 +77,4 @@ export class AuthStatusResponse extends RestResponse {
   }
 }
 
-export class AuthSuccessResponse extends RestResponse {
-  public toCache = false;
-  constructor(
-    public response: AuthTokenInfo,
-    public statusCode: string
-  ) {
-    super(true, statusCode);
-  }
-}
-
-export class AuthErrorResponse extends RestResponse {
-  public toCache = false;
-  constructor(
-    public response: any,
-    public statusCode: string,
-  ) {
-    super(true, statusCode);
-  }
-}
 /* tslint:enable:max-classes-per-file */

src/app/core/data/request.service.spec.ts

@@ -236,7 +236,7 @@ describe('RequestService', () => {
 
         it('should dispatch the request', () => {
           service.configure(request);
-          expect(serviceAsAny.dispatchRequest).toHaveBeenCalledWith(request);
+          expect(serviceAsAny.dispatchRequest).toHaveBeenCalledWith(request, false);
         });
       });
       describe('and it is already cached or pending', () => {
@@ -254,22 +254,22 @@ describe('RequestService', () => {
     describe('when the request isn\'t a GET request', () => {
       it('should dispatch the request', () => {
         service.configure(testPostRequest);
-        expect(serviceAsAny.dispatchRequest).toHaveBeenCalledWith(testPostRequest);
+        expect(serviceAsAny.dispatchRequest).toHaveBeenCalledWith(testPostRequest, false);
 
         service.configure(testPutRequest);
-        expect(serviceAsAny.dispatchRequest).toHaveBeenCalledWith(testPutRequest);
+        expect(serviceAsAny.dispatchRequest).toHaveBeenCalledWith(testPutRequest, false);
 
         service.configure(testDeleteRequest);
-        expect(serviceAsAny.dispatchRequest).toHaveBeenCalledWith(testDeleteRequest);
+        expect(serviceAsAny.dispatchRequest).toHaveBeenCalledWith(testDeleteRequest, false);
 
         service.configure(testOptionsRequest);
-        expect(serviceAsAny.dispatchRequest).toHaveBeenCalledWith(testOptionsRequest);
+        expect(serviceAsAny.dispatchRequest).toHaveBeenCalledWith(testOptionsRequest, false);
 
         service.configure(testHeadRequest);
-        expect(serviceAsAny.dispatchRequest).toHaveBeenCalledWith(testHeadRequest);
+        expect(serviceAsAny.dispatchRequest).toHaveBeenCalledWith(testHeadRequest, false);
 
         service.configure(testPatchRequest);
-        expect(serviceAsAny.dispatchRequest).toHaveBeenCalledWith(testPatchRequest);
+        expect(serviceAsAny.dispatchRequest).toHaveBeenCalledWith(testPatchRequest, false);
       });
     });
   });

src/app/core/data/request.service.ts

@@ -102,7 +102,7 @@ export class RequestService {
     return isCached || isPending;
   }
 
-  private dispatchRequest(request: RestRequest, overrideRequest: boolean) {
+  private dispatchRequest(request: RestRequest, overrideRequest: boolean = false) {
     this.store.dispatch(new RequestConfigureAction(request));
     this.store.dispatch(new RequestExecuteAction(request.uuid));
     if (request.method === RestRequestMethod.Get && !overrideRequest) {

src/app/core/dspace-rest-v2/dspace-rest-v2-response.model.ts

@@ -7,6 +7,6 @@ export interface DSpaceRESTV2Response {
     _links?: any;
     page?: any;
   },
-  headers: HttpHeaders,
+  headers?: HttpHeaders,
   statusCode: string
 }

src/app/core/dspace-rest-v2/dspace-rest-v2.service.ts

@@ -71,6 +71,7 @@ export class DSpaceRESTv2Service {
         console.log(res);
         return ({ payload: res.body, headers: res.headers, statusCode: res.statusText })
       })
+      .share()
       .catch((err) => {
         console.log('Error: ', err);
         return Observable.throw(err);

src/app/header/header.component.spec.ts

@@ -9,6 +9,16 @@ import { Observable } from 'rxjs/Observable';
 import { HeaderComponent } from './header.component';
 import { HeaderState } from './header.reducer';
 import { HeaderToggleAction } from './header.actions';
+import { AuthNavMenuComponent } from '../shared/auth-nav-menu/auth-nav-menu.component';
+import { LogInComponent } from '../shared/log-in/log-in.component';
+import { LogOutComponent } from '../shared/log-out/log-out.component';
+import { LoadingComponent } from '../shared/loading/loading.component';
+import { ReactiveFormsModule } from '@angular/forms';
+import { HostWindowService } from '../shared/host-window.service';
+import { HostWindowServiceStub } from '../shared/testing/host-window-service-stub';
+import { RouterStub } from '../shared/testing/router-stub';
+import { Router } from '@angular/router';
+import { NoopAnimationsModule } from '@angular/platform-browser/animations';
 
 let comp: HeaderComponent;
 let fixture: ComponentFixture<HeaderComponent>;
@@ -19,8 +29,17 @@ describe('HeaderComponent', () => {
   // async beforeEach
   beforeEach(async(() => {
     TestBed.configureTestingModule({
-      imports: [StoreModule.forRoot({}), TranslateModule.forRoot(), NgbCollapseModule.forRoot()],
-      declarations: [HeaderComponent]
+      imports: [
+        StoreModule.forRoot({}),
+        TranslateModule.forRoot(),
+        NgbCollapseModule.forRoot(),
+        NoopAnimationsModule,
+        ReactiveFormsModule],
+      declarations: [HeaderComponent, AuthNavMenuComponent, LoadingComponent, LogInComponent, LogOutComponent],
+      providers: [
+        { provide: HostWindowService, useValue: new HostWindowServiceStub(800) },
+        { provide: Router, useClass: RouterStub },
+      ]
     })
       .compileComponents();  // compile template and css
   }));

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

@@ -1,4 +1,4 @@
-<ds-loading *ngIf="(loading | async)"></ds-loading>
+<ds-loading *ngIf="(loading | async)" class="m-5"></ds-loading>
 <form *ngIf="!(loading | async)" class="form-login px-4 py-3" (ngSubmit)="submit()" [formGroup]="form" novalidate>
   <label for="inputEmail" class="sr-only">{{"login.form.email" | translate}}</label>
   <input id="inputEmail"

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

@@ -1,18 +1,13 @@
 import { Component, OnDestroy, OnInit } from '@angular/core';
 import { FormBuilder, FormGroup, Validators } from '@angular/forms';
 
-// @ngrx
 import { Store } from '@ngrx/store';
-
-// rxjs
 import { Observable } from 'rxjs/Observable';
 import 'rxjs/add/operator/filter';
 import 'rxjs/add/operator/takeWhile';
 
-// actions
 import { AuthenticateAction, ResetAuthenticationMessagesAction } from '../../core/auth/auth.actions';
 
-// reducers
 import {
   getAuthenticationError, getAuthenticationInfo,
   isAuthenticated,

src/app/shared/testing/host-window-service-stub.ts

@@ -16,4 +16,8 @@ export class HostWindowServiceStub {
   isXs(): Observable<boolean> {
     return Observable.of(this.width < 576);
   }
+
+  isMobileView(): Observable<boolean> {
+    return this.isXs();
+  }
 }

src/app/shared/testing/platform-service-stub.ts

@@ -0,0 +1,12 @@
+
+// declare a stub service
+export class PlatformServiceStub {
+
+  public get isBrowser(): boolean {
+    return true;
+  }
+
+  public get isServer(): boolean {
+    return false;
+  }
+}

yarn.lock

@@ -193,7 +193,7 @@
   version "2.8.4"
   resolved "https://registry.yarnpkg.com/@types/jasmine/-/jasmine-2.8.4.tgz#5528fb5e53f1b27594f81f18debb7eab8dc532cb"
 
-"@types/js-cookie@^2.1.0":
+"@types/js-cookie@2.1.0":
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/@types/js-cookie/-/js-cookie-2.1.0.tgz#a8916246aa994db646c66d54c854916213300a51"
 
@@ -4505,6 +4505,10 @@ jszip@^3.1.3:
     pako "~1.0.2"
     readable-stream "~2.0.6"
 
+jwt-decode@^2.2.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/jwt-decode/-/jwt-decode-2.2.0.tgz#7d86bd56679f58ce6a84704a657dd392bba81a79"
+
 karma-chrome-launcher@2.2.0:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/karma-chrome-launcher/-/karma-chrome-launcher-2.2.0.tgz#cf1b9d07136cc18fe239327d24654c3dbc368acf"