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

   1 import { Observable, ReplaySubject, Subject, throwError as observableThrowError } from 'rxjs'
   2 import { catchError, map, mergeMap, share, tap } from 'rxjs/operators'
   3 import { HttpClient, HttpHeaders, HttpParams } from '@angular/common/http'
   4 import { Injectable } from '@angular/core'
   5 import { Router } from '@angular/router'
   6 import { NotificationsService } from 'angular2-notifications'
   7 import { OAuthClientLocal, User as UserServerModel, UserRefreshToken } from '../../../../../shared'
   8 import { User } from '../../../../../shared/models/users'
   9 import { UserLogin } from '../../../../../shared/models/users/user-login.model'
  10 import { environment } from '../../../environments/environment'
  11 import { RestExtractor } from '../../shared/rest'
  12 import { AuthStatus } from './auth-status.model'
  13 import { AuthUser } from './auth-user.model'
  14 import { objectToUrlEncoded } from '@app/shared/misc/utils'
  15 import { peertubeLocalStorage } from '@app/shared/misc/peertube-local-storage'
  16 import { I18n } from '@ngx-translate/i18n-polyfill'
  17 import { HotkeysService, Hotkey } from 'angular2-hotkeys'
  18
  19 interface UserLoginWithUsername extends UserLogin {
  20   access_token: string
  21   refresh_token: string
  22   token_type: string
  23   username: string
  24 }
  25
  26 type UserLoginWithUserInformation = UserLoginWithUsername & User
  27
  28 @Injectable()
  29 export class AuthService {
  30   private static BASE_CLIENT_URL = environment.apiUrl + '/api/v1/oauth-clients/local'
  31   private static BASE_TOKEN_URL = environment.apiUrl + '/api/v1/users/token'
  32   private static BASE_USER_INFORMATION_URL = environment.apiUrl + '/api/v1/users/me'
  33   private static LOCAL_STORAGE_OAUTH_CLIENT_KEYS = {
  34     CLIENT_ID: 'client_id',
  35     CLIENT_SECRET: 'client_secret'
  36   }
  37
  38   loginChangedSource: Observable<AuthStatus>
  39   userInformationLoaded = new ReplaySubject<boolean>(1)
  40   hotkeys: Hotkey[]
  41   redirectUrl: string
  42
  43   private clientId: string = peertubeLocalStorage.getItem(AuthService.LOCAL_STORAGE_OAUTH_CLIENT_KEYS.CLIENT_ID)
  44   private clientSecret: string = peertubeLocalStorage.getItem(AuthService.LOCAL_STORAGE_OAUTH_CLIENT_KEYS.CLIENT_SECRET)
  45   private loginChanged: Subject<AuthStatus>
  46   private user: AuthUser = null
  47   private refreshingTokenObservable: Observable<any>
  48
  49   constructor (
  50     private http: HttpClient,
  51     private notificationsService: NotificationsService,
  52     private hotkeysService: HotkeysService,
  53     private restExtractor: RestExtractor,
  54     private router: Router,
  55     private i18n: I18n
  56   ) {
  57     this.loginChanged = new Subject<AuthStatus>()
  58     this.loginChangedSource = this.loginChanged.asObservable()
  59
  60     // Return null if there is nothing to load
  61     this.user = AuthUser.load()
  62
  63     // Set HotKeys
  64     this.hotkeys = [
  65       new Hotkey('m s', (event: KeyboardEvent): boolean => {
  66         this.router.navigate([ '/videos/subscriptions' ])
  67         return false
  68       }, undefined, 'Go to my subscriptions'),
  69       new Hotkey('m v', (event: KeyboardEvent): boolean => {
  70         this.router.navigate([ '/my-account/videos' ])
  71         return false
  72       }, undefined, 'Go to my videos'),
  73       new Hotkey('m i', (event: KeyboardEvent): boolean => {
  74         this.router.navigate([ '/my-account/video-imports' ])
  75         return false
  76       }, undefined, 'Go to my imports'),
  77       new Hotkey('m c', (event: KeyboardEvent): boolean => {
  78         this.router.navigate([ '/my-account/video-channels' ])
  79         return false
  80       }, undefined, 'Go to my channels')
  81     ]
  82   }
  83
  84   loadClientCredentials () {
  85     // Fetch the client_id/client_secret
  86     this.http.get<OAuthClientLocal>(AuthService.BASE_CLIENT_URL)
  87         .pipe(catchError(res => this.restExtractor.handleError(res)))
  88         .subscribe(
  89           res => {
  90             this.clientId = res.client_id
  91             this.clientSecret = res.client_secret
  92
  93             peertubeLocalStorage.setItem(AuthService.LOCAL_STORAGE_OAUTH_CLIENT_KEYS.CLIENT_ID, this.clientId)
  94             peertubeLocalStorage.setItem(AuthService.LOCAL_STORAGE_OAUTH_CLIENT_KEYS.CLIENT_SECRET, this.clientSecret)
  95
  96             console.log('Client credentials loaded.')
  97           },
  98
  99           error => {
 100             let errorMessage = error.message
 101
 102             if (error.status === 403) {
 103               errorMessage = this.i18n('Cannot retrieve OAuth Client credentials: {{errorText}}.\n', { errorText: error.text })
 104               errorMessage += this.i18n(
 105                 'Ensure you have correctly configured PeerTube (config/ directory), in particular the "webserver" section.'
 106               )
 107             }
 108
 109             // We put a bigger timeout
 110             // This is an important message
 111             this.notificationsService.error(this.i18n('Error'), errorMessage, { timeOut: 7000 })
 112           }
 113         )
 114   }
 115
 116   getRefreshToken () {
 117     if (this.user === null) return null
 118
 119     return this.user.getRefreshToken()
 120   }
 121
 122   getRequestHeaderValue () {
 123     const accessToken = this.getAccessToken()
 124
 125     if (accessToken === null) return null
 126
 127     return `${this.getTokenType()} ${accessToken}`
 128   }
 129
 130   getAccessToken () {
 131     if (this.user === null) return null
 132
 133     return this.user.getAccessToken()
 134   }
 135
 136   getTokenType () {
 137     if (this.user === null) return null
 138
 139     return this.user.getTokenType()
 140   }
 141
 142   getUser () {
 143     return this.user
 144   }
 145
 146   isLoggedIn () {
 147     return !!this.getAccessToken()
 148   }
 149
 150   login (username: string, password: string) {
 151     // Form url encoded
 152     const body = {
 153       client_id: this.clientId,
 154       client_secret: this.clientSecret,
 155       response_type: 'code',
 156       grant_type: 'password',
 157       scope: 'upload',
 158       username,
 159       password
 160     }
 161
 162     const headers = new HttpHeaders().set('Content-Type', 'application/x-www-form-urlencoded')
 163     return this.http.post<UserLogin>(AuthService.BASE_TOKEN_URL, objectToUrlEncoded(body), { headers })
 164                .pipe(
 165                  map(res => Object.assign(res, { username })),
 166                  mergeMap(res => this.mergeUserInformation(res)),
 167                  map(res => this.handleLogin(res)),
 168                  catchError(res => this.restExtractor.handleError(res))
 169                )
 170   }
 171
 172   logout () {
 173     // TODO: make an HTTP request to revoke the tokens
 174     this.user = null
 175
 176     AuthUser.flush()
 177
 178     this.setStatus(AuthStatus.LoggedOut)
 179
 180     this.hotkeysService.remove(this.hotkeys)
 181
 182     this.redirectUrl = null
 183   }
 184
 185   refreshAccessToken () {
 186     if (this.refreshingTokenObservable) return this.refreshingTokenObservable
 187
 188     console.log('Refreshing token...')
 189
 190     const refreshToken = this.getRefreshToken()
 191
 192     // Form url encoded
 193     const body = new HttpParams().set('refresh_token', refreshToken)
 194                                  .set('client_id', this.clientId)
 195                                  .set('client_secret', this.clientSecret)
 196                                  .set('response_type', 'code')
 197                                  .set('grant_type', 'refresh_token')
 198
 199     const headers = new HttpHeaders().set('Content-Type', 'application/x-www-form-urlencoded')
 200
 201     this.refreshingTokenObservable = this.http.post<UserRefreshToken>(AuthService.BASE_TOKEN_URL, body, { headers })
 202                                          .pipe(
 203                                            map(res => this.handleRefreshToken(res)),
 204                                            tap(() => this.refreshingTokenObservable = null),
 205                                            catchError(err => {
 206                                              this.refreshingTokenObservable = null
 207
 208                                              console.error(err)
 209                                              console.log('Cannot refresh token -> logout...')
 210                                              this.logout()
 211                                              this.router.navigate([ '/login' ])
 212
 213                                              return observableThrowError({
 214                                                error: this.i18n('You need to reconnect.')
 215                                              })
 216                                            }),
 217                                            share()
 218                                          )
 219
 220     return this.refreshingTokenObservable
 221   }
 222
 223   refreshUserInformation () {
 224     const obj = {
 225       access_token: this.user.getAccessToken(),
 226       refresh_token: null,
 227       token_type: this.user.getTokenType(),
 228       username: this.user.username
 229     }
 230
 231     this.mergeUserInformation(obj)
 232         .subscribe(
 233           res => {
 234             this.user.patch(res)
 235             this.user.save()
 236
 237             this.userInformationLoaded.next(true)
 238           }
 239         )
 240   }
 241
 242   private mergeUserInformation (obj: UserLoginWithUsername): Observable<UserLoginWithUserInformation> {
 243     // User is not loaded yet, set manually auth header
 244     const headers = new HttpHeaders().set('Authorization', `${obj.token_type} ${obj.access_token}`)
 245
 246     return this.http.get<UserServerModel>(AuthService.BASE_USER_INFORMATION_URL, { headers })
 247                .pipe(map(res => Object.assign(obj, res)))
 248   }
 249
 250   private handleLogin (obj: UserLoginWithUserInformation) {
 251     const hashTokens = {
 252       accessToken: obj.access_token,
 253       tokenType: obj.token_type,
 254       refreshToken: obj.refresh_token
 255     }
 256
 257     this.user = new AuthUser(obj, hashTokens)
 258     this.user.save()
 259
 260     this.setStatus(AuthStatus.LoggedIn)
 261     this.userInformationLoaded.next(true)
 262
 263     this.hotkeysService.add(this.hotkeys)
 264   }
 265
 266   private handleRefreshToken (obj: UserRefreshToken) {
 267     this.user.refreshTokens(obj.access_token, obj.refresh_token)
 268     this.user.save()
 269   }
 270
 271   private setStatus (status: AuthStatus) {
 272     this.loginChanged.next(status)
 273   }
 274 }