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

   1 import { Hotkey, HotkeysService } from 'angular2-hotkeys'
   2 import { Observable, ReplaySubject, Subject, throwError as observableThrowError } from 'rxjs'
   3 import { catchError, map, mergeMap, share, tap } from 'rxjs/operators'
   4 import { HttpClient, HttpHeaders, HttpParams } from '@angular/common/http'
   5 import { Injectable } from '@angular/core'
   6 import { Router } from '@angular/router'
   7 import { Notifier } from '@app/core/notification/notifier.service'
   8 import { logger, objectToUrlEncoded, peertubeLocalStorage, UserTokens } from '@root-helpers/index'
   9 import { HttpStatusCode, MyUser as UserServerModel, OAuthClientLocal, User, UserLogin, UserRefreshToken } from '@shared/models'
  10 import { environment } from '../../../environments/environment'
  11 import { RestExtractor } from '../rest/rest-extractor.service'
  12 import { AuthStatus } from './auth-status.model'
  13 import { AuthUser } from './auth-user.model'
  14
  15 interface UserLoginWithUsername extends UserLogin {
  16   access_token: string
  17   refresh_token: string
  18   token_type: string
  19   username: string
  20 }
  21
  22 type UserLoginWithUserInformation = UserLoginWithUsername & User
  23
  24 @Injectable()
  25 export class AuthService {
  26   private static BASE_CLIENT_URL = environment.apiUrl + '/api/v1/oauth-clients/local'
  27   private static BASE_TOKEN_URL = environment.apiUrl + '/api/v1/users/token'
  28   private static BASE_REVOKE_TOKEN_URL = environment.apiUrl + '/api/v1/users/revoke-token'
  29   private static BASE_USER_INFORMATION_URL = environment.apiUrl + '/api/v1/users/me'
  30   private static LOCAL_STORAGE_OAUTH_CLIENT_KEYS = {
  31     CLIENT_ID: 'client_id',
  32     CLIENT_SECRET: 'client_secret'
  33   }
  34
  35   loginChangedSource: Observable<AuthStatus>
  36   userInformationLoaded = new ReplaySubject<boolean>(1)
  37   tokensRefreshed = new ReplaySubject<void>(1)
  38   hotkeys: Hotkey[]
  39
  40   private clientId: string = peertubeLocalStorage.getItem(AuthService.LOCAL_STORAGE_OAUTH_CLIENT_KEYS.CLIENT_ID)
  41   private clientSecret: string = peertubeLocalStorage.getItem(AuthService.LOCAL_STORAGE_OAUTH_CLIENT_KEYS.CLIENT_SECRET)
  42   private loginChanged: Subject<AuthStatus>
  43   private user: AuthUser = null
  44   private refreshingTokenObservable: Observable<any>
  45
  46   constructor (
  47     private http: HttpClient,
  48     private notifier: Notifier,
  49     private hotkeysService: HotkeysService,
  50     private restExtractor: RestExtractor,
  51     private router: Router
  52   ) {
  53     this.loginChanged = new Subject<AuthStatus>()
  54     this.loginChangedSource = this.loginChanged.asObservable()
  55
  56     // Set HotKeys
  57     this.hotkeys = [
  58       new Hotkey('m s', (event: KeyboardEvent): boolean => {
  59         this.router.navigate([ '/videos/subscriptions' ])
  60         return false
  61       }, undefined, $localize`Go to my subscriptions`),
  62       new Hotkey('m v', (event: KeyboardEvent): boolean => {
  63         this.router.navigate([ '/my-library/videos' ])
  64         return false
  65       }, undefined, $localize`Go to my videos`),
  66       new Hotkey('m i', (event: KeyboardEvent): boolean => {
  67         this.router.navigate([ '/my-library/video-imports' ])
  68         return false
  69       }, undefined, $localize`Go to my imports`),
  70       new Hotkey('m c', (event: KeyboardEvent): boolean => {
  71         this.router.navigate([ '/my-library/video-channels' ])
  72         return false
  73       }, undefined, $localize`Go to my channels`)
  74     ]
  75   }
  76
  77   buildAuthUser (userInfo: Partial<User>, tokens: UserTokens) {
  78     this.user = new AuthUser(userInfo, tokens)
  79   }
  80
  81   loadClientCredentials () {
  82     // Fetch the client_id/client_secret
  83     this.http.get<OAuthClientLocal>(AuthService.BASE_CLIENT_URL)
  84         .pipe(catchError(res => this.restExtractor.handleError(res)))
  85         .subscribe({
  86           next: res => {
  87             this.clientId = res.client_id
  88             this.clientSecret = res.client_secret
  89
  90             peertubeLocalStorage.setItem(AuthService.LOCAL_STORAGE_OAUTH_CLIENT_KEYS.CLIENT_ID, this.clientId)
  91             peertubeLocalStorage.setItem(AuthService.LOCAL_STORAGE_OAUTH_CLIENT_KEYS.CLIENT_SECRET, this.clientSecret)
  92
  93             logger.info('Client credentials loaded.')
  94           },
  95
  96           error: err => {
  97             let errorMessage = err.message
  98
  99             if (err.status === HttpStatusCode.FORBIDDEN_403) {
 100               errorMessage = $localize`Cannot retrieve OAuth Client credentials: ${err.message}.
 101 Ensure you have correctly configured PeerTube (config/ directory), in particular the "webserver" section.`
 102             }
 103
 104             // We put a bigger timeout: this is an important message
 105             this.notifier.error(errorMessage, $localize`Error`, 7000)
 106           }
 107         })
 108   }
 109
 110   getRefreshToken () {
 111     if (this.user === null) return null
 112
 113     return this.user.getRefreshToken()
 114   }
 115
 116   getRequestHeaderValue () {
 117     const accessToken = this.getAccessToken()
 118
 119     if (accessToken === null) return null
 120
 121     return `${this.getTokenType()} ${accessToken}`
 122   }
 123
 124   getAccessToken () {
 125     if (this.user === null) return null
 126
 127     return this.user.getAccessToken()
 128   }
 129
 130   getTokenType () {
 131     if (this.user === null) return null
 132
 133     return this.user.getTokenType()
 134   }
 135
 136   getUser () {
 137     return this.user
 138   }
 139
 140   isLoggedIn () {
 141     return !!this.getAccessToken()
 142   }
 143
 144   login (username: string, password: string, token?: string) {
 145     // Form url encoded
 146     const body = {
 147       client_id: this.clientId,
 148       client_secret: this.clientSecret,
 149       response_type: 'code',
 150       grant_type: 'password',
 151       scope: 'upload',
 152       username,
 153       password
 154     }
 155
 156     if (token) Object.assign(body, { externalAuthToken: token })
 157
 158     const headers = new HttpHeaders().set('Content-Type', 'application/x-www-form-urlencoded')
 159     return this.http.post<UserLogin>(AuthService.BASE_TOKEN_URL, objectToUrlEncoded(body), { headers })
 160                .pipe(
 161                  map(res => Object.assign(res, { username })),
 162                  mergeMap(res => this.mergeUserInformation(res)),
 163                  map(res => this.handleLogin(res)),
 164                  catchError(res => this.restExtractor.handleError(res))
 165                )
 166   }
 167
 168   logout () {
 169     const authHeaderValue = this.getRequestHeaderValue()
 170     const headers = new HttpHeaders().set('Authorization', authHeaderValue)
 171
 172     this.http.post<{ redirectUrl?: string }>(AuthService.BASE_REVOKE_TOKEN_URL, {}, { headers })
 173       .subscribe({
 174         next: res => {
 175           if (res.redirectUrl) {
 176             window.location.href = res.redirectUrl
 177           }
 178         },
 179
 180         error: err => logger.error(err)
 181       })
 182
 183     this.user = null
 184
 185     this.setStatus(AuthStatus.LoggedOut)
 186
 187     this.hotkeysService.remove(this.hotkeys)
 188   }
 189
 190   refreshAccessToken () {
 191     if (this.refreshingTokenObservable) return this.refreshingTokenObservable
 192
 193     logger.info('Refreshing token...')
 194
 195     const refreshToken = this.getRefreshToken()
 196
 197     // Form url encoded
 198     const body = new HttpParams().set('refresh_token', refreshToken)
 199                                  .set('client_id', this.clientId)
 200                                  .set('client_secret', this.clientSecret)
 201                                  .set('response_type', 'code')
 202                                  .set('grant_type', 'refresh_token')
 203
 204     const headers = new HttpHeaders().set('Content-Type', 'application/x-www-form-urlencoded')
 205
 206     this.refreshingTokenObservable = this.http.post<UserRefreshToken>(AuthService.BASE_TOKEN_URL, body, { headers })
 207                                          .pipe(
 208                                            map(res => this.handleRefreshToken(res)),
 209                                            tap(() => {
 210                                              this.refreshingTokenObservable = null
 211                                            }),
 212                                            catchError(err => {
 213                                              this.refreshingTokenObservable = null
 214
 215                                              logger.error(err)
 216                                              logger.info('Cannot refresh token -> logout...')
 217                                              this.logout()
 218                                              this.router.navigate([ '/login' ])
 219
 220                                              return observableThrowError(() => ({
 221                                                error: $localize`You need to reconnect.`
 222                                              }))
 223                                            }),
 224                                            share()
 225                                          )
 226
 227     return this.refreshingTokenObservable
 228   }
 229
 230   refreshUserInformation () {
 231     const obj: UserLoginWithUsername = {
 232       access_token: this.user.getAccessToken(),
 233       refresh_token: null,
 234       token_type: this.user.getTokenType(),
 235       username: this.user.username
 236     }
 237
 238     this.mergeUserInformation(obj)
 239         .subscribe({
 240           next: res => {
 241             this.user.patch(res)
 242
 243             this.userInformationLoaded.next(true)
 244           }
 245         })
 246   }
 247
 248   private mergeUserInformation (obj: UserLoginWithUsername): Observable<UserLoginWithUserInformation> {
 249     // User is not loaded yet, set manually auth header
 250     const headers = new HttpHeaders().set('Authorization', `${obj.token_type} ${obj.access_token}`)
 251
 252     return this.http.get<UserServerModel>(AuthService.BASE_USER_INFORMATION_URL, { headers })
 253                .pipe(map(res => Object.assign(obj, res)))
 254   }
 255
 256   private handleLogin (obj: UserLoginWithUserInformation) {
 257     const hashTokens = {
 258       accessToken: obj.access_token,
 259       tokenType: obj.token_type,
 260       refreshToken: obj.refresh_token
 261     }
 262
 263     this.user = new AuthUser(obj, hashTokens)
 264
 265     this.setStatus(AuthStatus.LoggedIn)
 266     this.userInformationLoaded.next(true)
 267
 268     this.hotkeysService.add(this.hotkeys)
 269   }
 270
 271   private handleRefreshToken (obj: UserRefreshToken) {
 272     this.user.refreshTokens(obj.access_token, obj.refresh_token)
 273     this.tokensRefreshed.next()
 274   }
 275
 276   private setStatus (status: AuthStatus) {
 277     this.loginChanged.next(status)
 278   }
 279 }