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

   1 import { Observable, of, Subject } from 'rxjs'
   2 import { first, map, share, shareReplay, switchMap, tap } from 'rxjs/operators'
   3 import { HttpClient } from '@angular/common/http'
   4 import { Inject, Injectable, LOCALE_ID } from '@angular/core'
   5 import { getDevLocale, isOnDevLocale, sortBy } from '@app/helpers'
   6 import { getCompleteLocale, isDefaultLocale, peertubeTranslate } from '@shared/core-utils/i18n'
   7 import { HTMLServerConfig, ServerConfig, ServerStats, VideoConstant } from '@shared/models'
   8 import { environment } from '../../../environments/environment'
   9
  10 @Injectable()
  11 export class ServerService {
  12   private static BASE_CONFIG_URL = environment.apiUrl + '/api/v1/config/'
  13   private static BASE_VIDEO_URL = environment.apiUrl + '/api/v1/videos/'
  14   private static BASE_VIDEO_PLAYLIST_URL = environment.apiUrl + '/api/v1/video-playlists/'
  15   private static BASE_LOCALE_URL = environment.apiUrl + '/client/locales/'
  16   private static BASE_STATS_URL = environment.apiUrl + '/api/v1/server/stats'
  17
  18   configReloaded = new Subject<ServerConfig>()
  19
  20   private localeObservable: Observable<any>
  21   private videoLicensesObservable: Observable<VideoConstant<number>[]>
  22   private videoCategoriesObservable: Observable<VideoConstant<number>[]>
  23   private videoPrivaciesObservable: Observable<VideoConstant<number>[]>
  24   private videoPlaylistPrivaciesObservable: Observable<VideoConstant<number>[]>
  25   private videoLanguagesObservable: Observable<VideoConstant<string>[]>
  26   private configObservable: Observable<ServerConfig>
  27
  28   private configReset = false
  29
  30   private configLoaded = false
  31   private config: ServerConfig
  32   private htmlConfig: HTMLServerConfig
  33
  34   constructor (
  35     private http: HttpClient,
  36     @Inject(LOCALE_ID) private localeId: string
  37   ) {
  38   }
  39
  40   loadHTMLConfig () {
  41     try {
  42       return this.loadHTMLConfigLocally()
  43     } catch (err) {
  44       // Expected in dev mode since we can't inject the config in the HTML
  45       if (environment.production !== false) {
  46         console.error('Cannot load config locally. Fallback to API.')
  47       }
  48
  49       return this.getConfig()
  50     }
  51   }
  52
  53   getServerVersionAndCommit () {
  54     const serverVersion = this.config.serverVersion
  55     const commit = this.config.serverCommit || ''
  56
  57     let result = serverVersion
  58     if (commit) result += '...' + commit
  59
  60     return result
  61   }
  62
  63   resetConfig () {
  64     this.configLoaded = false
  65     this.configReset = true
  66
  67     // Notify config update
  68     return this.getConfig()
  69   }
  70
  71   getConfig () {
  72     if (this.configLoaded) return of(this.config)
  73
  74     if (!this.configObservable) {
  75       this.configObservable = this.http.get<ServerConfig>(ServerService.BASE_CONFIG_URL)
  76                                   .pipe(
  77                                     tap(config => {
  78                                       this.config = config
  79                                       this.htmlConfig = config
  80                                       this.configLoaded = true
  81                                     }),
  82                                     tap(config => {
  83                                       if (this.configReset) {
  84                                         this.configReloaded.next(config)
  85                                         this.configReset = false
  86                                       }
  87                                     }),
  88                                     share()
  89                                   )
  90     }
  91
  92     return this.configObservable
  93   }
  94
  95   getHTMLConfig () {
  96     return this.htmlConfig
  97   }
  98
  99   getVideoCategories () {
 100     if (!this.videoCategoriesObservable) {
 101       this.videoCategoriesObservable = this.loadAttributeEnum<number>(ServerService.BASE_VIDEO_URL, 'categories', true)
 102     }
 103
 104     return this.videoCategoriesObservable.pipe(first())
 105   }
 106
 107   getVideoLicences () {
 108     if (!this.videoLicensesObservable) {
 109       this.videoLicensesObservable = this.loadAttributeEnum<number>(ServerService.BASE_VIDEO_URL, 'licences')
 110     }
 111
 112     return this.videoLicensesObservable.pipe(first())
 113   }
 114
 115   getVideoLanguages () {
 116     if (!this.videoLanguagesObservable) {
 117       this.videoLanguagesObservable = this.loadAttributeEnum<string>(ServerService.BASE_VIDEO_URL, 'languages', true)
 118     }
 119
 120     return this.videoLanguagesObservable.pipe(first())
 121   }
 122
 123   getVideoPrivacies () {
 124     if (!this.videoPrivaciesObservable) {
 125       this.videoPrivaciesObservable = this.loadAttributeEnum<number>(ServerService.BASE_VIDEO_URL, 'privacies')
 126     }
 127
 128     return this.videoPrivaciesObservable.pipe(first())
 129   }
 130
 131   getVideoPlaylistPrivacies () {
 132     if (!this.videoPlaylistPrivaciesObservable) {
 133       this.videoPlaylistPrivaciesObservable = this.loadAttributeEnum<number>(ServerService.BASE_VIDEO_PLAYLIST_URL, 'privacies')
 134     }
 135
 136     return this.videoPlaylistPrivaciesObservable.pipe(first())
 137   }
 138
 139   getServerLocale () {
 140     if (!this.localeObservable) {
 141       const completeLocale = isOnDevLocale() ? getDevLocale() : getCompleteLocale(this.localeId)
 142
 143       // Default locale, nothing to translate
 144       if (isDefaultLocale(completeLocale)) {
 145         this.localeObservable = of({}).pipe(shareReplay())
 146       } else {
 147         this.localeObservable = this.http
 148                                     .get(ServerService.BASE_LOCALE_URL + completeLocale + '/server.json')
 149                                     .pipe(shareReplay())
 150       }
 151     }
 152
 153     return this.localeObservable.pipe(first())
 154   }
 155
 156   getServerStats () {
 157     return this.http.get<ServerStats>(ServerService.BASE_STATS_URL)
 158   }
 159
 160   private loadAttributeEnum <T extends string | number> (
 161     baseUrl: string,
 162     attributeName: 'categories' | 'licences' | 'languages' | 'privacies',
 163     sort = false
 164   ) {
 165     return this.getServerLocale()
 166                .pipe(
 167                  switchMap(translations => {
 168                    return this.http.get<{ [ id: string ]: string }>(baseUrl + attributeName)
 169                               .pipe(map(data => ({ data, translations })))
 170                  }),
 171                  map(({ data, translations }) => {
 172                    const hashToPopulate: VideoConstant<T>[] = Object.keys(data)
 173                                                                     .map(dataKey => {
 174                                                                       const label = data[dataKey]
 175
 176                                                                       const id = attributeName === 'languages'
 177                                                                         ? dataKey as T
 178                                                                         : parseInt(dataKey, 10) as T
 179
 180                                                                       return {
 181                                                                         id,
 182                                                                         label: peertubeTranslate(label, translations)
 183                                                                       }
 184                                                                     })
 185
 186                    if (sort === true) sortBy(hashToPopulate, 'label')
 187
 188                    return hashToPopulate
 189                  }),
 190                  shareReplay()
 191                )
 192   }
 193
 194   private loadHTMLConfigLocally () {
 195     const configString = window['PeerTubeServerConfig']
 196     if (!configString) {
 197       throw new Error('Could not find PeerTubeServerConfig in HTML')
 198     }
 199
 200     this.htmlConfig = JSON.parse(configString)
 201   }
 202 }