fixed linter errors

Author: Ankur Srivastava

front/src/app/authentication/authentication.service.ts

@@ -57,9 +57,9 @@ export class AuthenticationService {
    */
   public postResource(body: String, url: string) {
     let token = localStorage.getItem('token');
-    let headers = new Headers({ 'Authorization': 'Bearer ' + token });
-    headers.append('Content-Type', 'application/json');
-    let options = new RequestOptions({ headers: headers });
+    let postHeader = new Headers({ Authorization: 'Bearer ' + token });
+    postHeader.append('Content-Type', 'application/json');
+    let options = new RequestOptions({ headers: postHeader });
     return this.http.post(url, body, options);
   }
 
@@ -68,8 +68,8 @@ export class AuthenticationService {
    */
   public getResource(url: string) {
     let token = localStorage.getItem('token');
-    let headers = new Headers({ 'Authentication-Token': token });
-    let options = new RequestOptions({ headers: headers });
+    let getHeader = new Headers({ Authorization: 'Bearer ' + token });
+    let options = new RequestOptions({ headers: getHeader });
     return this.http.get(url, options);
   }
 
@@ -92,11 +92,10 @@ export class AuthenticationService {
    * based on the first time authentication from server
    */
   private checkTokenExpired() {
-
     let expiryTime = Number(localStorage.getItem('exp'));
     let curTime = Math.floor(new Date().getTime() / 1000);
     if (curTime > expiryTime) {
-      console.log("Session expired.")
+      console.log('Session expired.');
       return true;
     }
     return false;

front/src/app/home/home.component.ts

@@ -1,8 +1,8 @@
-import { Component, OnInit } from '@angular/core';
+import { Component, OnInit, OnDestroy } from '@angular/core';
 import { Http, Response } from '@angular/http';
 import { AuthenticationService } from '../authentication';
 import { Router } from '@angular/router';
-import { NavbarComponent } from  '../navbar';
+import { NavbarComponent } from '../navbar';
 import { WebService } from '../webservices';
 
 @Component({
@@ -11,7 +11,7 @@ import { WebService } from '../webservices';
   styleUrls: ['./home.component.css'],
   providers: [WebService, AuthenticationService]
 })
-export class HomeComponent implements OnInit {
+export class HomeComponent implements OnInit, OnDestroy {
 
   public heroes = [];
   constructor(private http: Http, private router: Router, private webservice: WebService) { }

front/src/app/login/login.component.ts

@@ -14,7 +14,7 @@ import { Observable } from 'rxjs/Rx';
   // directives to be available in this component
   providers: [AuthenticationService]
 })
-export class LoginFormComponent {
+export class LoginFormComponent implements OnInit {
 
   public inputLogo = 'assets/img/angularclass-logo.png';
   public model: UserComponent = new UserComponent(1, '', '');
@@ -31,6 +31,14 @@ export class LoginFormComponent {
     this.myForm = new FormGroup(group);
   }
 
+  public ngOnInit() {
+    console.log('Inside the login page');
+
+    if (this._service.isAuthenticated()) {
+      console.log('We are authenticated, why go to login page again');
+      this.router.navigate(['/home']);
+    }
+  }
 
   public loginUser() {
 

front/src/app/utils/notfound/notfound.component.ts

@@ -19,7 +19,8 @@ import { ActivatedRoute, Router } from '@angular/router';
     </div>
   </div>
     `,
-  styles: [`.center {text-align: center; margin-left: auto; margin-right: auto; margin-bottom: auto; margin-top: auto;}`]
+  styles: [`.center {text-align: center; margin-left: auto; \
+     margin-right: auto; margin-bottom: auto; margin-top: auto;}`]
 })
 export class NotFoundComponent {
   constructor(private router: Router) { }