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

   1 import { HttpClient, HttpHeaders, HttpParams } from '@angular/common/http'
   2 import { Injectable } from '@angular/core'
   3 import { Router } from '@angular/router'
   4 import { NotificationsService } from 'angular2-notifications'
   5 import 'rxjs/add/observable/throw'
   6 import 'rxjs/add/operator/do'
   7 import 'rxjs/add/operator/map'
   8 import 'rxjs/add/operator/mergeMap'
   9 import { Observable } from 'rxjs/Observable'
  10 import { ReplaySubject } from 'rxjs/ReplaySubject'
  11 import { Subject } from 'rxjs/Subject'
  12 import { OAuthClientLocal, User as UserServerModel, UserRefreshToken, UserRole, VideoChannel } from '../../../../../shared'
  13 import { Account } from '../../../../../shared/models/accounts'
  14 import { UserLogin } from '../../../../../shared/models/users/user-login.model'
  15 import { environment } from '../../../environments/environment'
  16 import { RestExtractor } from '../../shared/rest'
  17 import { UserConstructorHash } from '../../shared/users/user.model'
  18 import { AuthStatus } from './auth-status.model'
  19 import { AuthUser } from './auth-user.model'
  20
  21 interface UserLoginWithUsername extends UserLogin {
  22   access_token: string
  23   refresh_token: string
  24   token_type: string
  25   username: string
  26 }
  27
  28 interface UserLoginWithUserInformation extends UserLogin {
  29   access_token: string
  30   refresh_token: string
  31   token_type: string
  32   username: string
  33   id: number
  34   role: UserRole
  35   displayNSFW: boolean
  36   email: string
  37   videoQuota: number
  38   account: Account
  39   videoChannels: VideoChannel[]
  40 }
  41
  42 @Injectable()
  43 export class AuthService {
  44   private static BASE_CLIENT_URL = environment.apiUrl + '/api/v1/oauth-clients/local'
  45   private static BASE_TOKEN_URL = environment.apiUrl + '/api/v1/users/token'
  46   private static BASE_USER_INFORMATION_URL = environment.apiUrl + '/api/v1/users/me'
  47
  48   loginChangedSource: Observable<AuthStatus>
  49   userInformationLoaded = new ReplaySubject<boolean>(1)
  50
  51   private clientId: string
  52   private clientSecret: string
  53   private loginChanged: Subject<AuthStatus>
  54   private user: AuthUser = null
  55
  56   constructor (
  57     private http: HttpClient,
  58     private notificationsService: NotificationsService,
  59     private restExtractor: RestExtractor,
  60     private router: Router
  61    ) {
  62     this.loginChanged = new Subject<AuthStatus>()
  63     this.loginChangedSource = this.loginChanged.asObservable()
  64
  65     // Return null if there is nothing to load
  66     this.user = AuthUser.load()
  67   }
  68
  69   loadClientCredentials () {
  70     // Fetch the client_id/client_secret
  71     // FIXME: save in local storage?
  72     this.http.get<OAuthClientLocal>(AuthService.BASE_CLIENT_URL)
  73              .catch(res => this.restExtractor.handleError(res))
  74              .subscribe(
  75                res => {
  76                  this.clientId = res.client_id
  77                  this.clientSecret = res.client_secret
  78                  console.log('Client credentials loaded.')
  79                },
  80
  81                error => {
  82                  let errorMessage = `Cannot retrieve OAuth Client credentials: ${error.text}. \n`
  83                  errorMessage += 'Ensure you have correctly configured PeerTube (config/ directory), in particular the "webserver" section.'
  84
  85                  // We put a bigger timeout
  86                  // This is an important message
  87                  this.notificationsService.error('Error', errorMessage, { timeOut: 7000 })
  88                }
  89              )
  90   }
  91
  92   getRefreshToken () {
  93     if (this.user === null) return null
  94
  95     return this.user.getRefreshToken()
  96   }
  97
  98   getRequestHeaderValue () {
  99     const accessToken = this.getAccessToken()
 100
 101     if (accessToken === null) return null
 102
 103     return `${this.getTokenType()} ${accessToken}`
 104   }
 105
 106   getAccessToken () {
 107     if (this.user === null) return null
 108
 109     return this.user.getAccessToken()
 110   }
 111
 112   getTokenType () {
 113     if (this.user === null) return null
 114
 115     return this.user.getTokenType()
 116   }
 117
 118   getUser () {
 119     return this.user
 120   }
 121
 122   isLoggedIn () {
 123     return !!this.getAccessToken()
 124   }
 125
 126   login (username: string, password: string) {
 127     // Form url encoded
 128     const body = new HttpParams().set('client_id', this.clientId)
 129                                  .set('client_secret', this.clientSecret)
 130                                  .set('response_type', 'code')
 131                                  .set('grant_type', 'password')
 132                                  .set('scope', 'upload')
 133                                  .set('username', username)
 134                                  .set('password', password)
 135
 136     const headers = new HttpHeaders().set('Content-Type', 'application/x-www-form-urlencoded')
 137
 138     return this.http.post<UserLogin>(AuthService.BASE_TOKEN_URL, body, { headers })
 139                     .map(res => Object.assign(res, { username }))
 140                     .flatMap(res => this.mergeUserInformation(res))
 141                     .map(res => this.handleLogin(res))
 142                     .catch(res => this.restExtractor.handleError(res))
 143   }
 144
 145   logout () {
 146     // TODO: make an HTTP request to revoke the tokens
 147     this.user = null
 148
 149     AuthUser.flush()
 150
 151     this.setStatus(AuthStatus.LoggedOut)
 152   }
 153
 154   refreshAccessToken () {
 155     console.log('Refreshing token...')
 156
 157     const refreshToken = this.getRefreshToken()
 158
 159     // Form url encoded
 160     const body = new HttpParams().set('refresh_token', refreshToken)
 161                                  .set('client_id', this.clientId)
 162                                  .set('client_secret', this.clientSecret)
 163                                  .set('response_type', 'code')
 164                                  .set('grant_type', 'refresh_token')
 165
 166     const headers = new HttpHeaders().set('Content-Type', 'application/x-www-form-urlencoded')
 167
 168     return this.http.post<UserRefreshToken>(AuthService.BASE_TOKEN_URL, body, { headers })
 169                     .map(res => this.handleRefreshToken(res))
 170                     .catch(err => {
 171                       console.error(err)
 172                       console.log('Cannot refresh token -> logout...')
 173                       this.logout()
 174                       this.router.navigate(['/login'])
 175
 176                       return Observable.throw({
 177                         error: 'You need to reconnect.'
 178                       })
 179                     })
 180   }
 181
 182   refreshUserInformation () {
 183     const obj = {
 184       access_token: this.user.getAccessToken(),
 185       refresh_token: null,
 186       token_type: this.user.getTokenType(),
 187       username: this.user.username
 188     }
 189
 190     this.mergeUserInformation(obj)
 191       .subscribe(
 192         res => {
 193           this.user.displayNSFW = res.displayNSFW
 194           this.user.role = res.role
 195           this.user.videoChannels = res.videoChannels
 196           this.user.account = res.account
 197
 198           this.user.save()
 199
 200           this.userInformationLoaded.next(true)
 201         }
 202       )
 203   }
 204
 205   private mergeUserInformation (obj: UserLoginWithUsername): Observable<UserLoginWithUserInformation> {
 206     // User is not loaded yet, set manually auth header
 207     const headers = new HttpHeaders().set('Authorization', `${obj.token_type} ${obj.access_token}`)
 208
 209     return this.http.get<UserServerModel>(AuthService.BASE_USER_INFORMATION_URL, { headers })
 210                     .map(res => {
 211                       const newProperties = {
 212                         id: res.id,
 213                         role: res.role,
 214                         displayNSFW: res.displayNSFW,
 215                         email: res.email,
 216                         videoQuota: res.videoQuota,
 217                         account: res.account,
 218                         videoChannels: res.videoChannels
 219                       }
 220
 221                       return Object.assign(obj, newProperties)
 222                     }
 223     )
 224   }
 225
 226   private handleLogin (obj: UserLoginWithUserInformation) {
 227     const hashUser: UserConstructorHash = {
 228       id: obj.id,
 229       username: obj.username,
 230       role: obj.role,
 231       email: obj.email,
 232       displayNSFW: obj.displayNSFW,
 233       videoQuota: obj.videoQuota,
 234       videoChannels: obj.videoChannels,
 235       account: obj.account
 236     }
 237     const hashTokens = {
 238       accessToken: obj.access_token,
 239       tokenType: obj.token_type,
 240       refreshToken: obj.refresh_token
 241     }
 242
 243     this.user = new AuthUser(hashUser, hashTokens)
 244     this.user.save()
 245
 246     this.setStatus(AuthStatus.LoggedIn)
 247     this.userInformationLoaded.next(true)
 248   }
 249
 250   private handleRefreshToken (obj: UserRefreshToken) {
 251     this.user.refreshTokens(obj.access_token, obj.refresh_token)
 252     this.user.save()
 253   }
 254
 255   private setStatus (status: AuthStatus) {
 256     this.loginChanged.next(status)
 257   }
 258 }