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1 | import './embed.scss' | |
2 | ||
3 | import 'core-js/es6/symbol' | |
4 | import 'core-js/es6/object' | |
5 | import 'core-js/es6/function' | |
6 | import 'core-js/es6/parse-int' | |
7 | import 'core-js/es6/parse-float' | |
8 | import 'core-js/es6/number' | |
9 | import 'core-js/es6/math' | |
10 | import 'core-js/es6/string' | |
11 | import 'core-js/es6/date' | |
12 | import 'core-js/es6/array' | |
13 | import 'core-js/es6/regexp' | |
14 | import 'core-js/es6/map' | |
15 | import 'core-js/es6/weak-map' | |
16 | import 'core-js/es6/set' | |
17 | // For google bot that uses Chrome 41 and does not understand fetch | |
18 | import 'whatwg-fetch' | |
19 | ||
20 | import * as Channel from 'jschannel' | |
21 | ||
22 | import { peertubeTranslate, ResultList, VideoDetails } from '../../../../shared' | |
23 | import { PeerTubeResolution } from '../player/definitions' | |
24 | import { VideoJSCaption } from '../../assets/player/peertube-videojs-typings' | |
25 | import { VideoCaption } from '../../../../shared/models/videos/caption/video-caption.model' | |
26 | import { | |
27 | P2PMediaLoaderOptions, | |
28 | PeertubePlayerManager, | |
29 | PeertubePlayerManagerOptions, | |
30 | PlayerMode | |
31 | } from '../../assets/player/peertube-player-manager' | |
32 | import { VideoStreamingPlaylistType } from '../../../../shared/models/videos/video-streaming-playlist.type' | |
33 | ||
34 | /** | |
35 | * Embed API exposes control of the embed player to the outside world via | |
36 | * JSChannels and window.postMessage | |
37 | */ | |
38 | class PeerTubeEmbedApi { | |
39 | private channel: Channel.MessagingChannel | |
40 | private isReady = false | |
41 | private resolutions: PeerTubeResolution[] = null | |
42 | ||
43 | constructor (private embed: PeerTubeEmbed) { | |
44 | } | |
45 | ||
46 | initialize () { | |
47 | this.constructChannel() | |
48 | this.setupStateTracking() | |
49 | ||
50 | // We're ready! | |
51 | ||
52 | this.notifyReady() | |
53 | } | |
54 | ||
55 | private get element () { | |
56 | return this.embed.videoElement | |
57 | } | |
58 | ||
59 | private constructChannel () { | |
60 | let channel = Channel.build({ window: window.parent, origin: '*', scope: this.embed.scope }) | |
61 | ||
62 | channel.bind('play', (txn, params) => this.embed.player.play()) | |
63 | channel.bind('pause', (txn, params) => this.embed.player.pause()) | |
64 | channel.bind('seek', (txn, time) => this.embed.player.currentTime(time)) | |
65 | channel.bind('setVolume', (txn, value) => this.embed.player.volume(value)) | |
66 | channel.bind('getVolume', (txn, value) => this.embed.player.volume()) | |
67 | channel.bind('isReady', (txn, params) => this.isReady) | |
68 | channel.bind('setResolution', (txn, resolutionId) => this.setResolution(resolutionId)) | |
69 | channel.bind('getResolutions', (txn, params) => this.resolutions) | |
70 | channel.bind('setPlaybackRate', (txn, playbackRate) => this.embed.player.playbackRate(playbackRate)) | |
71 | channel.bind('getPlaybackRate', (txn, params) => this.embed.player.playbackRate()) | |
72 | channel.bind('getPlaybackRates', (txn, params) => this.embed.playerOptions.playbackRates) | |
73 | ||
74 | this.channel = channel | |
75 | } | |
76 | ||
77 | private setResolution (resolutionId: number) { | |
78 | if (resolutionId === -1 && this.embed.player.webtorrent().isAutoResolutionForbidden()) return | |
79 | ||
80 | // Auto resolution | |
81 | if (resolutionId === -1) { | |
82 | this.embed.player.webtorrent().enableAutoResolution() | |
83 | return | |
84 | } | |
85 | ||
86 | this.embed.player.webtorrent().disableAutoResolution() | |
87 | this.embed.player.webtorrent().updateResolution(resolutionId) | |
88 | } | |
89 | ||
90 | /** | |
91 | * Let the host know that we're ready to go! | |
92 | */ | |
93 | private notifyReady () { | |
94 | this.isReady = true | |
95 | this.channel.notify({ method: 'ready', params: true }) | |
96 | } | |
97 | ||
98 | private setupStateTracking () { | |
99 | let currentState: 'playing' | 'paused' | 'unstarted' = 'unstarted' | |
100 | ||
101 | setInterval(() => { | |
102 | let position = this.element.currentTime | |
103 | let volume = this.element.volume | |
104 | ||
105 | this.channel.notify({ | |
106 | method: 'playbackStatusUpdate', | |
107 | params: { | |
108 | position, | |
109 | volume, | |
110 | playbackState: currentState | |
111 | } | |
112 | }) | |
113 | }, 500) | |
114 | ||
115 | this.element.addEventListener('play', ev => { | |
116 | currentState = 'playing' | |
117 | this.channel.notify({ method: 'playbackStatusChange', params: 'playing' }) | |
118 | }) | |
119 | ||
120 | this.element.addEventListener('pause', ev => { | |
121 | currentState = 'paused' | |
122 | this.channel.notify({ method: 'playbackStatusChange', params: 'paused' }) | |
123 | }) | |
124 | ||
125 | // PeerTube specific capabilities | |
126 | ||
127 | if (this.embed.player.webtorrent) { | |
128 | this.embed.player.webtorrent().on('autoResolutionUpdate', () => this.loadWebTorrentResolutions()) | |
129 | this.embed.player.webtorrent().on('videoFileUpdate', () => this.loadWebTorrentResolutions()) | |
130 | } | |
131 | } | |
132 | ||
133 | private loadWebTorrentResolutions () { | |
134 | let resolutions = [] | |
135 | let currentResolutionId = this.embed.player.webtorrent().getCurrentResolutionId() | |
136 | ||
137 | for (const videoFile of this.embed.player.webtorrent().videoFiles) { | |
138 | let label = videoFile.resolution.label | |
139 | if (videoFile.fps && videoFile.fps >= 50) { | |
140 | label += videoFile.fps | |
141 | } | |
142 | ||
143 | resolutions.push({ | |
144 | id: videoFile.resolution.id, | |
145 | label, | |
146 | src: videoFile.magnetUri, | |
147 | active: videoFile.resolution.id === currentResolutionId | |
148 | }) | |
149 | } | |
150 | ||
151 | this.resolutions = resolutions | |
152 | this.channel.notify({ | |
153 | method: 'resolutionUpdate', | |
154 | params: this.resolutions | |
155 | }) | |
156 | } | |
157 | } | |
158 | ||
159 | class PeerTubeEmbed { | |
160 | videoElement: HTMLVideoElement | |
161 | player: any | |
162 | playerOptions: any | |
163 | api: PeerTubeEmbedApi = null | |
164 | autoplay: boolean | |
165 | controls: boolean | |
166 | muted: boolean | |
167 | loop: boolean | |
168 | subtitle: string | |
169 | enableApi = false | |
170 | startTime: number | string = 0 | |
171 | mode: PlayerMode | |
172 | scope = 'peertube' | |
173 | ||
174 | static async main () { | |
175 | const videoContainerId = 'video-container' | |
176 | const embed = new PeerTubeEmbed(videoContainerId) | |
177 | await embed.init() | |
178 | } | |
179 | ||
180 | constructor (private videoContainerId: string) { | |
181 | this.videoElement = document.getElementById(videoContainerId) as HTMLVideoElement | |
182 | } | |
183 | ||
184 | getVideoUrl (id: string) { | |
185 | return window.location.origin + '/api/v1/videos/' + id | |
186 | } | |
187 | ||
188 | loadVideoInfo (videoId: string): Promise<Response> { | |
189 | return fetch(this.getVideoUrl(videoId)) | |
190 | } | |
191 | ||
192 | loadVideoCaptions (videoId: string): Promise<Response> { | |
193 | return fetch(this.getVideoUrl(videoId) + '/captions') | |
194 | } | |
195 | ||
196 | removeElement (element: HTMLElement) { | |
197 | element.parentElement.removeChild(element) | |
198 | } | |
199 | ||
200 | displayError (text: string, translations?: { [ id: string ]: string }) { | |
201 | // Remove video element | |
202 | if (this.videoElement) this.removeElement(this.videoElement) | |
203 | ||
204 | const translatedText = peertubeTranslate(text, translations) | |
205 | const translatedSorry = peertubeTranslate('Sorry', translations) | |
206 | ||
207 | document.title = translatedSorry + ' - ' + translatedText | |
208 | ||
209 | const errorBlock = document.getElementById('error-block') | |
210 | errorBlock.style.display = 'flex' | |
211 | ||
212 | const errorTitle = document.getElementById('error-title') | |
213 | errorTitle.innerHTML = peertubeTranslate('Sorry', translations) | |
214 | ||
215 | const errorText = document.getElementById('error-content') | |
216 | errorText.innerHTML = translatedText | |
217 | } | |
218 | ||
219 | videoNotFound (translations?: { [ id: string ]: string }) { | |
220 | const text = 'This video does not exist.' | |
221 | this.displayError(text, translations) | |
222 | } | |
223 | ||
224 | videoFetchError (translations?: { [ id: string ]: string }) { | |
225 | const text = 'We cannot fetch the video. Please try again later.' | |
226 | this.displayError(text, translations) | |
227 | } | |
228 | ||
229 | getParamToggle (params: URLSearchParams, name: string, defaultValue?: boolean) { | |
230 | return params.has(name) ? (params.get(name) === '1' || params.get(name) === 'true') : defaultValue | |
231 | } | |
232 | ||
233 | getParamString (params: URLSearchParams, name: string, defaultValue?: string) { | |
234 | return params.has(name) ? params.get(name) : defaultValue | |
235 | } | |
236 | ||
237 | async init () { | |
238 | try { | |
239 | await this.initCore() | |
240 | } catch (e) { | |
241 | console.error(e) | |
242 | } | |
243 | } | |
244 | ||
245 | private initializeApi () { | |
246 | if (!this.enableApi) return | |
247 | ||
248 | this.api = new PeerTubeEmbedApi(this) | |
249 | this.api.initialize() | |
250 | } | |
251 | ||
252 | private loadParams () { | |
253 | try { | |
254 | let params = new URL(window.location.toString()).searchParams | |
255 | ||
256 | this.autoplay = this.getParamToggle(params, 'autoplay') | |
257 | this.controls = this.getParamToggle(params, 'controls') | |
258 | this.muted = this.getParamToggle(params, 'muted') | |
259 | this.loop = this.getParamToggle(params, 'loop') | |
260 | this.enableApi = this.getParamToggle(params, 'api', this.enableApi) | |
261 | ||
262 | this.scope = this.getParamString(params, 'scope', this.scope) | |
263 | this.subtitle = this.getParamString(params, 'subtitle') | |
264 | this.startTime = this.getParamString(params, 'start') | |
265 | ||
266 | this.mode = this.getParamString(params, 'mode') === 'p2p-media-loader' ? 'p2p-media-loader' : 'webtorrent' | |
267 | } catch (err) { | |
268 | console.error('Cannot get params from URL.', err) | |
269 | } | |
270 | } | |
271 | ||
272 | private async initCore () { | |
273 | const urlParts = window.location.pathname.split('/') | |
274 | const videoId = urlParts[ urlParts.length - 1 ] | |
275 | ||
276 | const [ serverTranslations, videoResponse, captionsResponse ] = await Promise.all([ | |
277 | PeertubePlayerManager.getServerTranslations(window.location.origin, navigator.language), | |
278 | this.loadVideoInfo(videoId), | |
279 | this.loadVideoCaptions(videoId) | |
280 | ]) | |
281 | ||
282 | if (!videoResponse.ok) { | |
283 | if (videoResponse.status === 404) return this.videoNotFound(serverTranslations) | |
284 | ||
285 | return this.videoFetchError(serverTranslations) | |
286 | } | |
287 | ||
288 | const videoInfo: VideoDetails = await videoResponse.json() | |
289 | let videoCaptions: VideoJSCaption[] = [] | |
290 | if (captionsResponse.ok) { | |
291 | const { data } = (await captionsResponse.json()) as ResultList<VideoCaption> | |
292 | videoCaptions = data.map(c => ({ | |
293 | label: peertubeTranslate(c.language.label, serverTranslations), | |
294 | language: c.language.id, | |
295 | src: window.location.origin + c.captionPath | |
296 | })) | |
297 | } | |
298 | ||
299 | this.loadParams() | |
300 | ||
301 | const options: PeertubePlayerManagerOptions = { | |
302 | common: { | |
303 | autoplay: this.autoplay, | |
304 | controls: this.controls, | |
305 | muted: this.muted, | |
306 | loop: this.loop, | |
307 | captions: videoCaptions.length !== 0, | |
308 | startTime: this.startTime, | |
309 | subtitle: this.subtitle, | |
310 | ||
311 | videoCaptions, | |
312 | inactivityTimeout: 1500, | |
313 | videoViewUrl: this.getVideoUrl(videoId) + '/views', | |
314 | ||
315 | playerElement: this.videoElement, | |
316 | onPlayerElementChange: (element: HTMLVideoElement) => this.videoElement = element, | |
317 | ||
318 | videoDuration: videoInfo.duration, | |
319 | enableHotkeys: true, | |
320 | peertubeLink: true, | |
321 | poster: window.location.origin + videoInfo.previewPath, | |
322 | theaterMode: false, | |
323 | ||
324 | serverUrl: window.location.origin, | |
325 | language: navigator.language, | |
326 | embedUrl: window.location.origin + videoInfo.embedPath | |
327 | }, | |
328 | ||
329 | webtorrent: { | |
330 | videoFiles: videoInfo.files | |
331 | } | |
332 | } | |
333 | ||
334 | if (this.mode === 'p2p-media-loader') { | |
335 | const hlsPlaylist = videoInfo.streamingPlaylists.find(p => p.type === VideoStreamingPlaylistType.HLS) | |
336 | ||
337 | Object.assign(options, { | |
338 | p2pMediaLoader: { | |
339 | playlistUrl: hlsPlaylist.playlistUrl, | |
340 | segmentsSha256Url: hlsPlaylist.segmentsSha256Url, | |
341 | redundancyBaseUrls: hlsPlaylist.redundancies.map(r => r.baseUrl), | |
342 | trackerAnnounce: videoInfo.trackerUrls, | |
343 | videoFiles: videoInfo.files | |
344 | } as P2PMediaLoaderOptions | |
345 | }) | |
346 | } | |
347 | ||
348 | this.player = await PeertubePlayerManager.initialize(this.mode, options) | |
349 | ||
350 | this.player.on('customError', (event: any, data: any) => this.handleError(data.err, serverTranslations)) | |
351 | ||
352 | window[ 'videojsPlayer' ] = this.player | |
353 | ||
354 | if (this.controls) { | |
355 | this.player.dock({ | |
356 | title: videoInfo.name, | |
357 | description: this.player.localize('Uses P2P, others may know your IP is downloading this video.') | |
358 | }) | |
359 | } | |
360 | ||
361 | this.initializeApi() | |
362 | } | |
363 | ||
364 | private handleError (err: Error, translations?: { [ id: string ]: string }) { | |
365 | if (err.message.indexOf('from xs param') !== -1) { | |
366 | this.player.dispose() | |
367 | this.videoElement = null | |
368 | this.displayError('This video is not available because the remote instance is not responding.', translations) | |
369 | return | |
370 | } | |
371 | } | |
372 | } | |
373 | ||
374 | PeerTubeEmbed.main() | |
375 | .catch(err => console.error('Cannot init embed.', err)) |