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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_LOGIN_URL = '/api/v1/users/token';
private static BASE_CLIENT_URL = '/api/v1/users/client';
loginChangedSource: Observable<AuthStatus>;
private loginChanged: Subject<AuthStatus>;
private clientId: string;
private clientSecret: string;
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);
}
);
}
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
}
getRequestHeader() {
return new Headers({ 'Authorization': `${this.getTokenType()} ${this.getToken()}` });
}
getAuthRequestOptions(): RequestOptions {
return new RequestOptions({ headers: this.getRequestHeader() });
}
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;
}
}
setStatus(status: AuthStatus) {
this.loginChanged.next(status);
}
private handleError (error: Response) {
console.error(error);
return Observable.throw(error.json() || { error: 'Server error' });
}
}
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