Added auth service

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

+import { Injectable } from '@angular/core';
+
+import { Observable } from 'rxjs/Observable';
+
+import { Eperson } from '../eperson/models/eperson.model';
+
+export const MOCK_USER = new Eperson();
+MOCK_USER.id = '92a59227-ccf7-46da-9776-86c3fc64147f';
+MOCK_USER.uuid = '92a59227-ccf7-46da-9776-86c3fc64147f';
+MOCK_USER.name = 'andrea.bollini@4science.it';
+MOCK_USER.email = 'andrea.bollini@4science.it';
+MOCK_USER.metadata = [
+  {
+    key: 'eperson.firstname',
+    value: 'Andrea',
+    language: null
+  },
+  {
+    key: 'eperson.lastname',
+    value: 'Bollini',
+    language: null
+  },
+  {
+    key: 'eperson.language',
+    value: 'en',
+    language: null
+  }
+];
+
+/**
+ * The user service.
+ */
+@Injectable()
+export class AuthService {
+
+  /**
+   * True if authenticated
+   * @type
+   */
+  private _authenticated = false;
+
+  /**
+   * Authenticate the user
+   *
+   * @param {string} email The user's email address
+   * @param {string} password The user's password
+   * @returns {Observable<User>} The authenticated user observable.
+   */
+  public authenticate(email: string, password: string): Observable<Eperson> {
+    // Normally you would do an HTTP request to determine to
+    // attempt authenticating the user using the supplied credentials.
+
+    if (email === MOCK_USER.email && password === 'password') {
+      this._authenticated = true;
+      return Observable.of(MOCK_USER);
+    }
+
+    return Observable.throw(new Error('Invalid email or password'));
+  }
+
+  /**
+   * Determines if the user is authenticated
+   * @returns {Observable<boolean>}
+   */
+  public authenticated(): Observable<boolean> {
+    return Observable.of(this._authenticated);
+  }
+
+  /**
+   * Returns the authenticated user
+   * @returns {User}
+   */
+  public authenticatedUser(): Observable<Eperson> {
+    // Normally you would do an HTTP request to determine if
+    // the user has an existing auth session on the server
+    // but, let's just return the mock user for this example.
+    return Observable.of(MOCK_USER);
+  }
+
+  /**
+   * Create a new user
+   * @returns {User}
+   */
+  public create(user: Eperson): Observable<Eperson> {
+    // Normally you would do an HTTP request to POST the user
+    // details and then return the new user object
+    // but, let's just return the new user for this example.
+    this._authenticated = true;
+    return Observable.of(user);
+  }
+
+  /**
+   * End session
+   * @returns {Observable<boolean>}
+   */
+  public signout(): Observable<boolean> {
+    // Normally you would do an HTTP request sign end the session
+    // but, let's just return an observable of true.
+    this._authenticated = false;
+    return Observable.of(true);
+  }
+}

src/app/core/auth/authenticated.guard.ts

+import { Injectable } from '@angular/core';
+import { ActivatedRouteSnapshot, CanActivate, CanLoad, Route, Router, RouterStateSnapshot } from '@angular/router';
+
+import { Observable } from 'rxjs/Observable';
+import { Store } from '@ngrx/store';
+
+// reducers
+import {
+  isAuthenticated,
+  State
+} from '../app.reducers';
+
+/**
+ * Prevent unauthorized activating and loading of routes
+ * @class AuthenticatedGuard
+ */
+@Injectable()
+export class AuthenticatedGuard implements CanActivate, CanLoad {
+
+  /**
+   * @constructor
+   */
+  constructor(private router: Router, private store: Store<State>) {}
+
+  /**
+   * True when user is authenticated
+   * @method canActivate
+   */
+  canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable<boolean> | boolean {
+    // get observable
+    const observable = this.store.select(isAuthenticated);
+
+    // redirect to sign in page if user is not authenticated
+    observable.subscribe((authenticated) => {
+      if (!authenticated) {
+        this.router.navigate(['/login']);
+      }
+    });
+
+    return observable;
+  }
+
+  /**
+   * True when user is authenticated
+   * @method canLoad
+   */
+  canLoad(route: Route): Observable<boolean> | Promise<boolean> | boolean {
+    // get observable
+    const observable = this.store.select(isAuthenticated);
+
+    // redirect to sign in page if user is not authenticated
+    observable.subscribe((authenticated) => {
+      if (!authenticated) {
+        this.router.navigate(['/login']);
+      }
+    });
+
+    return observable;
+  }
+}

src/app/core/auth/authentication-status.model.ts

+import { DSpaceObject } from '../shared/dspace-object.model';
+
+export class AuthenticationStatus extends DSpaceObject {
+
+  okay: boolean;
+
+  authenticated: boolean;
+
+}