1 files changed, 108 insertions, 0 deletions

diff --git a/client/src/app/shared/users/auth.service.ts b/client/src/app/shared/users/auth.service.ts
new file mode 100644
index 000000000..d63fe38f3
--- /dev/null
+++ b/client/src/app/shared/users/auth.service.ts
@@ -0,0 +1,108 @@
+import { Injectable } from '@angular/core';
+import { Headers, Http, RequestOptions, Response, URLSearchParams } from '@angular/http';
+import { Observable, Subject } from 'rxjs/Rx';
+
+import { AuthStatus } from './auth-status.model';
+import { User } from './user.model';
+
+@Injectable()
+export class AuthService {
+  private static BASE_CLIENT_URL = '/api/v1/users/client';
+  private static BASE_LOGIN_URL = '/api/v1/users/token';
+
+  loginChangedSource: Observable<AuthStatus>;
+
+  private clientId: string;
+  private clientSecret: string;
+  private loginChanged: Subject<AuthStatus>;
+
+  constructor(private http: Http) {
+    this.loginChanged = new Subject<AuthStatus>();
+    this.loginChangedSource = this.loginChanged.asObservable();
+
+    // Fetch the client_id/client_secret
+    // FIXME: save in local storage?
+    this.http.get(AuthService.BASE_CLIENT_URL)
+      .map(res => res.json())
+      .catch(this.handleError)
+      .subscribe(
+        result => {
+          this.clientId = result.client_id;
+          this.clientSecret = result.client_secret;
+          console.log('Client credentials loaded.');
+        },
+        error => {
+          alert(error);
+        }
+      );
+  }
+
+  getAuthRequestOptions(): RequestOptions {
+    return new RequestOptions({ headers: this.getRequestHeader() });
+  }
+
+  getRequestHeader() {
+    return new Headers({ 'Authorization': `${this.getTokenType()} ${this.getToken()}` });
+  }
+
+  getToken() {
+    return localStorage.getItem('access_token');
+  }
+
+  getTokenType() {
+    return localStorage.getItem('token_type');
+  }
+
+  getUser(): User {
+    if (this.isLoggedIn() === false) {
+      return null;
+    }
+
+    const user = User.load();
+
+    return user;
+  }
+
+  isLoggedIn() {
+    if (this.getToken()) {
+      return true;
+    } else {
+      return false;
+    }
+  }
+
+  login(username: string, password: string) {
+    let body = new URLSearchParams();
+    body.set('client_id', this.clientId);
+    body.set('client_secret', this.clientSecret);
+    body.set('response_type', 'code');
+    body.set('grant_type', 'password');
+    body.set('scope', 'upload');
+    body.set('username', username);
+    body.set('password', password);
+
+    let headers = new Headers();
+    headers.append('Content-Type', 'application/x-www-form-urlencoded');
+
+    let options = {
+      headers: headers
+    };
+
+    return this.http.post(AuthService.BASE_LOGIN_URL, body.toString(), options)
+                    .map(res => res.json())
+                    .catch(this.handleError);
+  }
+
+  logout() {
+    // TODO make HTTP request
+  }
+
+  setStatus(status: AuthStatus) {
+    this.loginChanged.next(status);
+  }
+
+  private handleError (error: Response) {
+    console.error(error);
+    return Observable.throw(error.json() || { error: 'Server error' });
+  }
+}