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import { HttpClient, HttpHeaders, HttpParams } from '@angular/common/http'
import { Injectable } from '@angular/core'
import { Router } from '@angular/router'
import { NotificationsService } from 'angular2-notifications'
import 'rxjs/add/observable/throw'
import 'rxjs/add/operator/do'
import 'rxjs/add/operator/map'
import 'rxjs/add/operator/mergeMap'
import { Observable } from 'rxjs/Observable'
import { ReplaySubject } from 'rxjs/ReplaySubject'
import { Subject } from 'rxjs/Subject'
import { OAuthClientLocal, User as UserServerModel, UserRefreshToken } from '../../../../../shared'
import { User } from '../../../../../shared/models/users'
import { UserLogin } from '../../../../../shared/models/users/user-login.model'
import { environment } from '../../../environments/environment'
import { RestExtractor } from '../../shared/rest'
import { AuthStatus } from './auth-status.model'
import { AuthUser } from './auth-user.model'
interface UserLoginWithUsername extends UserLogin {
access_token: string
refresh_token: string
token_type: string
username: string
}
type UserLoginWithUserInformation = UserLoginWithUsername & User
@Injectable()
export class AuthService {
private static BASE_CLIENT_URL = environment.apiUrl + '/api/v1/oauth-clients/local'
private static BASE_TOKEN_URL = environment.apiUrl + '/api/v1/users/token'
private static BASE_USER_INFORMATION_URL = environment.apiUrl + '/api/v1/users/me'
loginChangedSource: Observable<AuthStatus>
userInformationLoaded = new ReplaySubject<boolean>(1)
private clientId: string
private clientSecret: string
private loginChanged: Subject<AuthStatus>
private user: AuthUser = null
constructor (
private http: HttpClient,
private notificationsService: NotificationsService,
private restExtractor: RestExtractor,
private router: Router
) {
this.loginChanged = new Subject<AuthStatus>()
this.loginChangedSource = this.loginChanged.asObservable()
// Return null if there is nothing to load
this.user = AuthUser.load()
}
loadClientCredentials () {
// Fetch the client_id/client_secret
// FIXME: save in local storage?
this.http.get<OAuthClientLocal>(AuthService.BASE_CLIENT_URL)
.catch(res => this.restExtractor.handleError(res))
.subscribe(
res => {
this.clientId = res.client_id
this.clientSecret = res.client_secret
console.log('Client credentials loaded.')
},
error => {
let errorMessage = `Cannot retrieve OAuth Client credentials: ${error.text}. \n`
errorMessage += 'Ensure you have correctly configured PeerTube (config/ directory), in particular the "webserver" section.'
// We put a bigger timeout
// This is an important message
this.notificationsService.error('Error', errorMessage, { timeOut: 7000 })
}
)
}
getRefreshToken () {
if (this.user === null) return null
return this.user.getRefreshToken()
}
getRequestHeaderValue () {
const accessToken = this.getAccessToken()
if (accessToken === null) return null
return `${this.getTokenType()} ${accessToken}`
}
getAccessToken () {
if (this.user === null) return null
return this.user.getAccessToken()
}
getTokenType () {
if (this.user === null) return null
return this.user.getTokenType()
}
getUser () {
return this.user
}
isLoggedIn () {
return !!this.getAccessToken()
}
login (username: string, password: string) {
// Form url encoded
const body = new HttpParams().set('client_id', this.clientId)
.set('client_secret', this.clientSecret)
.set('response_type', 'code')
.set('grant_type', 'password')
.set('scope', 'upload')
.set('username', username)
.set('password', password)
const headers = new HttpHeaders().set('Content-Type', 'application/x-www-form-urlencoded')
return this.http.post<UserLogin>(AuthService.BASE_TOKEN_URL, body, { headers })
.map(res => Object.assign(res, { username }))
.flatMap(res => this.mergeUserInformation(res))
.map(res => this.handleLogin(res))
.catch(res => this.restExtractor.handleError(res))
}
logout () {
// TODO: make an HTTP request to revoke the tokens
this.user = null
AuthUser.flush()
this.setStatus(AuthStatus.LoggedOut)
}
refreshAccessToken () {
console.log('Refreshing token...')
const refreshToken = this.getRefreshToken()
// Form url encoded
const body = new HttpParams().set('refresh_token', refreshToken)
.set('client_id', this.clientId)
.set('client_secret', this.clientSecret)
.set('response_type', 'code')
.set('grant_type', 'refresh_token')
const headers = new HttpHeaders().set('Content-Type', 'application/x-www-form-urlencoded')
return this.http.post<UserRefreshToken>(AuthService.BASE_TOKEN_URL, body, { headers })
.map(res => this.handleRefreshToken(res))
.catch(err => {
console.error(err)
console.log('Cannot refresh token -> logout...')
this.logout()
this.router.navigate(['/login'])
return Observable.throw({
error: 'You need to reconnect.'
})
})
}
refreshUserInformation () {
const obj = {
access_token: this.user.getAccessToken(),
refresh_token: null,
token_type: this.user.getTokenType(),
username: this.user.username
}
this.mergeUserInformation(obj)
.subscribe(
res => {
this.user.patch(res)
this.user.save()
this.userInformationLoaded.next(true)
}
)
}
private mergeUserInformation (obj: UserLoginWithUsername): Observable<UserLoginWithUserInformation> {
// User is not loaded yet, set manually auth header
const headers = new HttpHeaders().set('Authorization', `${obj.token_type} ${obj.access_token}`)
return this.http.get<UserServerModel>(AuthService.BASE_USER_INFORMATION_URL, { headers })
.map(res => Object.assign(obj, res))
}
private handleLogin (obj: UserLoginWithUserInformation) {
const hashTokens = {
accessToken: obj.access_token,
tokenType: obj.token_type,
refreshToken: obj.refresh_token
}
this.user = new AuthUser(obj, hashTokens)
this.user.save()
this.setStatus(AuthStatus.LoggedIn)
this.userInformationLoaded.next(true)
}
private handleRefreshToken (obj: UserRefreshToken) {
this.user.refreshTokens(obj.access_token, obj.refresh_token)
this.user.save()
}
private setStatus (status: AuthStatus) {
this.loginChanged.next(status)
}
}
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