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1 | import express from 'express' | |
2 | import { readFile } from 'fs-extra' | |
3 | import { join } from 'path' | |
4 | import validator from 'validator' | |
5 | import { isTestOrDevInstance } from '@server/helpers/core-utils' | |
6 | import { toCompleteUUID } from '@server/helpers/custom-validators/misc' | |
7 | import { mdToOneLinePlainText } from '@server/helpers/markdown' | |
8 | import { ActorImageModel } from '@server/models/actor/actor-image' | |
9 | import { root } from '@shared/core-utils' | |
10 | import { escapeHTML } from '@shared/core-utils/renderer' | |
11 | import { sha256 } from '@shared/extra-utils' | |
12 | import { HTMLServerConfig } from '@shared/models' | |
13 | import { buildFileLocale, getDefaultLocale, is18nLocale, POSSIBLE_LOCALES } from '../../shared/core-utils/i18n/i18n' | |
14 | import { HttpStatusCode } from '../../shared/models/http/http-error-codes' | |
15 | import { VideoPlaylistPrivacy, VideoPrivacy } from '../../shared/models/videos' | |
16 | import { logger } from '../helpers/logger' | |
17 | import { CONFIG } from '../initializers/config' | |
18 | import { | |
19 | ACCEPT_HEADERS, | |
20 | CUSTOM_HTML_TAG_COMMENTS, | |
21 | EMBED_SIZE, | |
22 | FILES_CONTENT_HASH, | |
23 | PLUGIN_GLOBAL_CSS_PATH, | |
24 | WEBSERVER | |
25 | } from '../initializers/constants' | |
26 | import { AccountModel } from '../models/account/account' | |
27 | import { VideoModel } from '../models/video/video' | |
28 | import { VideoChannelModel } from '../models/video/video-channel' | |
29 | import { VideoPlaylistModel } from '../models/video/video-playlist' | |
30 | import { MAccountActor, MChannelActor } from '../types/models' | |
31 | import { getActivityStreamDuration } from './activitypub/activity' | |
32 | import { getBiggestActorImage } from './actor-image' | |
33 | import { ServerConfigManager } from './server-config-manager' | |
34 | ||
35 | type Tags = { | |
36 | ogType: string | |
37 | twitterCard: 'player' | 'summary' | 'summary_large_image' | |
38 | schemaType: string | |
39 | ||
40 | list?: { | |
41 | numberOfItems: number | |
42 | } | |
43 | ||
44 | escapedSiteName: string | |
45 | escapedTitle: string | |
46 | escapedDescription: string | |
47 | ||
48 | url: string | |
49 | originUrl: string | |
50 | ||
51 | disallowIndexation?: boolean | |
52 | ||
53 | embed?: { | |
54 | url: string | |
55 | createdAt: string | |
56 | duration?: string | |
57 | views?: number | |
58 | } | |
59 | ||
60 | image: { | |
61 | url: string | |
62 | width?: number | |
63 | height?: number | |
64 | } | |
65 | } | |
66 | ||
67 | class ClientHtml { | |
68 | ||
69 | private static htmlCache: { [path: string]: string } = {} | |
70 | ||
71 | static invalidCache () { | |
72 | logger.info('Cleaning HTML cache.') | |
73 | ||
74 | ClientHtml.htmlCache = {} | |
75 | } | |
76 | ||
77 | static async getDefaultHTMLPage (req: express.Request, res: express.Response, paramLang?: string) { | |
78 | const html = paramLang | |
79 | ? await ClientHtml.getIndexHTML(req, res, paramLang) | |
80 | : await ClientHtml.getIndexHTML(req, res) | |
81 | ||
82 | let customHtml = ClientHtml.addTitleTag(html) | |
83 | customHtml = ClientHtml.addDescriptionTag(customHtml) | |
84 | ||
85 | return customHtml | |
86 | } | |
87 | ||
88 | static async getWatchHTMLPage (videoIdArg: string, req: express.Request, res: express.Response) { | |
89 | const videoId = toCompleteUUID(videoIdArg) | |
90 | ||
91 | // Let Angular application handle errors | |
92 | if (!validator.isInt(videoId) && !validator.isUUID(videoId, 4)) { | |
93 | res.status(HttpStatusCode.NOT_FOUND_404) | |
94 | return ClientHtml.getIndexHTML(req, res) | |
95 | } | |
96 | ||
97 | const [ html, video ] = await Promise.all([ | |
98 | ClientHtml.getIndexHTML(req, res), | |
99 | VideoModel.loadWithBlacklist(videoId) | |
100 | ]) | |
101 | ||
102 | // Let Angular application handle errors | |
103 | if (!video || video.privacy === VideoPrivacy.PRIVATE || video.privacy === VideoPrivacy.INTERNAL || video.VideoBlacklist) { | |
104 | res.status(HttpStatusCode.NOT_FOUND_404) | |
105 | return html | |
106 | } | |
107 | const description = mdToOneLinePlainText(video.description) | |
108 | ||
109 | let customHtml = ClientHtml.addTitleTag(html, video.name) | |
110 | customHtml = ClientHtml.addDescriptionTag(customHtml, description) | |
111 | ||
112 | const url = WEBSERVER.URL + video.getWatchStaticPath() | |
113 | const originUrl = video.url | |
114 | const title = video.name | |
115 | const siteName = CONFIG.INSTANCE.NAME | |
116 | ||
117 | const image = { | |
118 | url: WEBSERVER.URL + video.getPreviewStaticPath() | |
119 | } | |
120 | ||
121 | const embed = { | |
122 | url: WEBSERVER.URL + video.getEmbedStaticPath(), | |
123 | createdAt: video.createdAt.toISOString(), | |
124 | duration: getActivityStreamDuration(video.duration), | |
125 | views: video.views | |
126 | } | |
127 | ||
128 | const ogType = 'video' | |
129 | const twitterCard = CONFIG.SERVICES.TWITTER.WHITELISTED ? 'player' : 'summary_large_image' | |
130 | const schemaType = 'VideoObject' | |
131 | ||
132 | customHtml = ClientHtml.addTags(customHtml, { | |
133 | url, | |
134 | originUrl, | |
135 | escapedSiteName: escapeHTML(siteName), | |
136 | escapedTitle: escapeHTML(title), | |
137 | escapedDescription: escapeHTML(description), | |
138 | disallowIndexation: video.privacy !== VideoPrivacy.PUBLIC, | |
139 | image, | |
140 | embed, | |
141 | ogType, | |
142 | twitterCard, | |
143 | schemaType | |
144 | }) | |
145 | ||
146 | return customHtml | |
147 | } | |
148 | ||
149 | static async getWatchPlaylistHTMLPage (videoPlaylistIdArg: string, req: express.Request, res: express.Response) { | |
150 | const videoPlaylistId = toCompleteUUID(videoPlaylistIdArg) | |
151 | ||
152 | // Let Angular application handle errors | |
153 | if (!validator.isInt(videoPlaylistId) && !validator.isUUID(videoPlaylistId, 4)) { | |
154 | res.status(HttpStatusCode.NOT_FOUND_404) | |
155 | return ClientHtml.getIndexHTML(req, res) | |
156 | } | |
157 | ||
158 | const [ html, videoPlaylist ] = await Promise.all([ | |
159 | ClientHtml.getIndexHTML(req, res), | |
160 | VideoPlaylistModel.loadWithAccountAndChannel(videoPlaylistId, null) | |
161 | ]) | |
162 | ||
163 | // Let Angular application handle errors | |
164 | if (!videoPlaylist || videoPlaylist.privacy === VideoPlaylistPrivacy.PRIVATE) { | |
165 | res.status(HttpStatusCode.NOT_FOUND_404) | |
166 | return html | |
167 | } | |
168 | ||
169 | const description = mdToOneLinePlainText(videoPlaylist.description) | |
170 | ||
171 | let customHtml = ClientHtml.addTitleTag(html, videoPlaylist.name) | |
172 | customHtml = ClientHtml.addDescriptionTag(customHtml, description) | |
173 | ||
174 | const url = WEBSERVER.URL + videoPlaylist.getWatchStaticPath() | |
175 | const originUrl = videoPlaylist.url | |
176 | const title = videoPlaylist.name | |
177 | const siteName = CONFIG.INSTANCE.NAME | |
178 | ||
179 | const image = { | |
180 | url: videoPlaylist.getThumbnailUrl() | |
181 | } | |
182 | ||
183 | const embed = { | |
184 | url: WEBSERVER.URL + videoPlaylist.getEmbedStaticPath(), | |
185 | createdAt: videoPlaylist.createdAt.toISOString() | |
186 | } | |
187 | ||
188 | const list = { | |
189 | numberOfItems: videoPlaylist.get('videosLength') as number | |
190 | } | |
191 | ||
192 | const ogType = 'video' | |
193 | const twitterCard = CONFIG.SERVICES.TWITTER.WHITELISTED ? 'player' : 'summary' | |
194 | const schemaType = 'ItemList' | |
195 | ||
196 | customHtml = ClientHtml.addTags(customHtml, { | |
197 | url, | |
198 | originUrl, | |
199 | escapedSiteName: escapeHTML(siteName), | |
200 | escapedTitle: escapeHTML(title), | |
201 | escapedDescription: escapeHTML(description), | |
202 | disallowIndexation: videoPlaylist.privacy !== VideoPlaylistPrivacy.PUBLIC, | |
203 | embed, | |
204 | image, | |
205 | list, | |
206 | ogType, | |
207 | twitterCard, | |
208 | schemaType | |
209 | }) | |
210 | ||
211 | return customHtml | |
212 | } | |
213 | ||
214 | static async getAccountHTMLPage (nameWithHost: string, req: express.Request, res: express.Response) { | |
215 | const accountModelPromise = AccountModel.loadByNameWithHost(nameWithHost) | |
216 | return this.getAccountOrChannelHTMLPage(() => accountModelPromise, req, res) | |
217 | } | |
218 | ||
219 | static async getVideoChannelHTMLPage (nameWithHost: string, req: express.Request, res: express.Response) { | |
220 | const videoChannelModelPromise = VideoChannelModel.loadByNameWithHostAndPopulateAccount(nameWithHost) | |
221 | return this.getAccountOrChannelHTMLPage(() => videoChannelModelPromise, req, res) | |
222 | } | |
223 | ||
224 | static async getActorHTMLPage (nameWithHost: string, req: express.Request, res: express.Response) { | |
225 | const [ account, channel ] = await Promise.all([ | |
226 | AccountModel.loadByNameWithHost(nameWithHost), | |
227 | VideoChannelModel.loadByNameWithHostAndPopulateAccount(nameWithHost) | |
228 | ]) | |
229 | ||
230 | return this.getAccountOrChannelHTMLPage(() => Promise.resolve(account || channel), req, res) | |
231 | } | |
232 | ||
233 | static async getEmbedHTML () { | |
234 | const path = ClientHtml.getEmbedPath() | |
235 | ||
236 | // Disable HTML cache in dev mode because webpack can regenerate JS files | |
237 | if (!isTestOrDevInstance() && ClientHtml.htmlCache[path]) { | |
238 | return ClientHtml.htmlCache[path] | |
239 | } | |
240 | ||
241 | const buffer = await readFile(path) | |
242 | const serverConfig = await ServerConfigManager.Instance.getHTMLServerConfig() | |
243 | ||
244 | let html = buffer.toString() | |
245 | html = await ClientHtml.addAsyncPluginCSS(html) | |
246 | html = ClientHtml.addCustomCSS(html) | |
247 | html = ClientHtml.addTitleTag(html) | |
248 | html = ClientHtml.addDescriptionTag(html) | |
249 | html = ClientHtml.addServerConfig(html, serverConfig) | |
250 | ||
251 | ClientHtml.htmlCache[path] = html | |
252 | ||
253 | return html | |
254 | } | |
255 | ||
256 | private static async getAccountOrChannelHTMLPage ( | |
257 | loader: () => Promise<MAccountActor | MChannelActor>, | |
258 | req: express.Request, | |
259 | res: express.Response | |
260 | ) { | |
261 | const [ html, entity ] = await Promise.all([ | |
262 | ClientHtml.getIndexHTML(req, res), | |
263 | loader() | |
264 | ]) | |
265 | ||
266 | // Let Angular application handle errors | |
267 | if (!entity) { | |
268 | res.status(HttpStatusCode.NOT_FOUND_404) | |
269 | return ClientHtml.getIndexHTML(req, res) | |
270 | } | |
271 | ||
272 | const description = mdToOneLinePlainText(entity.description) | |
273 | ||
274 | let customHtml = ClientHtml.addTitleTag(html, entity.getDisplayName()) | |
275 | customHtml = ClientHtml.addDescriptionTag(customHtml, description) | |
276 | ||
277 | const url = entity.getLocalUrl() | |
278 | const originUrl = entity.Actor.url | |
279 | const siteName = CONFIG.INSTANCE.NAME | |
280 | const title = entity.getDisplayName() | |
281 | ||
282 | const avatar = getBiggestActorImage(entity.Actor.Avatars) | |
283 | const image = { | |
284 | url: ActorImageModel.getImageUrl(avatar), | |
285 | width: avatar?.width, | |
286 | height: avatar?.height | |
287 | } | |
288 | ||
289 | const ogType = 'website' | |
290 | const twitterCard = 'summary' | |
291 | const schemaType = 'ProfilePage' | |
292 | ||
293 | customHtml = ClientHtml.addTags(customHtml, { | |
294 | url, | |
295 | originUrl, | |
296 | escapedTitle: escapeHTML(title), | |
297 | escapedSiteName: escapeHTML(siteName), | |
298 | escapedDescription: escapeHTML(description), | |
299 | image, | |
300 | ogType, | |
301 | twitterCard, | |
302 | schemaType, | |
303 | disallowIndexation: !entity.Actor.isOwned() | |
304 | }) | |
305 | ||
306 | return customHtml | |
307 | } | |
308 | ||
309 | private static async getIndexHTML (req: express.Request, res: express.Response, paramLang?: string) { | |
310 | const path = ClientHtml.getIndexPath(req, res, paramLang) | |
311 | if (ClientHtml.htmlCache[path]) return ClientHtml.htmlCache[path] | |
312 | ||
313 | const buffer = await readFile(path) | |
314 | const serverConfig = await ServerConfigManager.Instance.getHTMLServerConfig() | |
315 | ||
316 | let html = buffer.toString() | |
317 | ||
318 | html = ClientHtml.addManifestContentHash(html) | |
319 | html = ClientHtml.addFaviconContentHash(html) | |
320 | html = ClientHtml.addLogoContentHash(html) | |
321 | html = ClientHtml.addCustomCSS(html) | |
322 | html = ClientHtml.addServerConfig(html, serverConfig) | |
323 | html = await ClientHtml.addAsyncPluginCSS(html) | |
324 | ||
325 | ClientHtml.htmlCache[path] = html | |
326 | ||
327 | return html | |
328 | } | |
329 | ||
330 | private static getIndexPath (req: express.Request, res: express.Response, paramLang: string) { | |
331 | let lang: string | |
332 | ||
333 | // Check param lang validity | |
334 | if (paramLang && is18nLocale(paramLang)) { | |
335 | lang = paramLang | |
336 | ||
337 | // Save locale in cookies | |
338 | res.cookie('clientLanguage', lang, { | |
339 | secure: WEBSERVER.SCHEME === 'https', | |
340 | sameSite: 'none', | |
341 | maxAge: 1000 * 3600 * 24 * 90 // 3 months | |
342 | }) | |
343 | ||
344 | } else if (req.cookies.clientLanguage && is18nLocale(req.cookies.clientLanguage)) { | |
345 | lang = req.cookies.clientLanguage | |
346 | } else { | |
347 | lang = req.acceptsLanguages(POSSIBLE_LOCALES) || getDefaultLocale() | |
348 | } | |
349 | ||
350 | logger.debug( | |
351 | 'Serving %s HTML language', buildFileLocale(lang), | |
352 | { cookie: req.cookies?.clientLanguage, paramLang, acceptLanguage: req.headers['accept-language'] } | |
353 | ) | |
354 | ||
355 | return join(root(), 'client', 'dist', buildFileLocale(lang), 'index.html') | |
356 | } | |
357 | ||
358 | private static getEmbedPath () { | |
359 | return join(root(), 'client', 'dist', 'standalone', 'videos', 'embed.html') | |
360 | } | |
361 | ||
362 | private static addManifestContentHash (htmlStringPage: string) { | |
363 | return htmlStringPage.replace('[manifestContentHash]', FILES_CONTENT_HASH.MANIFEST) | |
364 | } | |
365 | ||
366 | private static addFaviconContentHash (htmlStringPage: string) { | |
367 | return htmlStringPage.replace('[faviconContentHash]', FILES_CONTENT_HASH.FAVICON) | |
368 | } | |
369 | ||
370 | private static addLogoContentHash (htmlStringPage: string) { | |
371 | return htmlStringPage.replace('[logoContentHash]', FILES_CONTENT_HASH.LOGO) | |
372 | } | |
373 | ||
374 | private static addTitleTag (htmlStringPage: string, title?: string) { | |
375 | let text = title || CONFIG.INSTANCE.NAME | |
376 | if (title) text += ` - ${CONFIG.INSTANCE.NAME}` | |
377 | ||
378 | const titleTag = `<title>${escapeHTML(text)}</title>` | |
379 | ||
380 | return htmlStringPage.replace(CUSTOM_HTML_TAG_COMMENTS.TITLE, titleTag) | |
381 | } | |
382 | ||
383 | private static addDescriptionTag (htmlStringPage: string, description?: string) { | |
384 | const content = description || CONFIG.INSTANCE.SHORT_DESCRIPTION | |
385 | const descriptionTag = `<meta name="description" content="${escapeHTML(content)}" />` | |
386 | ||
387 | return htmlStringPage.replace(CUSTOM_HTML_TAG_COMMENTS.DESCRIPTION, descriptionTag) | |
388 | } | |
389 | ||
390 | private static addCustomCSS (htmlStringPage: string) { | |
391 | const styleTag = `<style class="custom-css-style">${CONFIG.INSTANCE.CUSTOMIZATIONS.CSS}</style>` | |
392 | ||
393 | return htmlStringPage.replace(CUSTOM_HTML_TAG_COMMENTS.CUSTOM_CSS, styleTag) | |
394 | } | |
395 | ||
396 | private static addServerConfig (htmlStringPage: string, serverConfig: HTMLServerConfig) { | |
397 | // Stringify the JSON object, and then stringify the string object so we can inject it into the HTML | |
398 | const serverConfigString = JSON.stringify(JSON.stringify(serverConfig)) | |
399 | const configScriptTag = `<script type="application/javascript">window.PeerTubeServerConfig = ${serverConfigString}</script>` | |
400 | ||
401 | return htmlStringPage.replace(CUSTOM_HTML_TAG_COMMENTS.SERVER_CONFIG, configScriptTag) | |
402 | } | |
403 | ||
404 | private static async addAsyncPluginCSS (htmlStringPage: string) { | |
405 | const globalCSSContent = await readFile(PLUGIN_GLOBAL_CSS_PATH) | |
406 | if (globalCSSContent.byteLength === 0) return htmlStringPage | |
407 | ||
408 | const fileHash = sha256(globalCSSContent) | |
409 | const linkTag = `<link rel="stylesheet" href="/plugins/global.css?hash=${fileHash}" />` | |
410 | ||
411 | return htmlStringPage.replace('</head>', linkTag + '</head>') | |
412 | } | |
413 | ||
414 | private static generateOpenGraphMetaTags (tags: Tags) { | |
415 | const metaTags = { | |
416 | 'og:type': tags.ogType, | |
417 | 'og:site_name': tags.escapedSiteName, | |
418 | 'og:title': tags.escapedTitle, | |
419 | 'og:image': tags.image.url | |
420 | } | |
421 | ||
422 | if (tags.image.width && tags.image.height) { | |
423 | metaTags['og:image:width'] = tags.image.width | |
424 | metaTags['og:image:height'] = tags.image.height | |
425 | } | |
426 | ||
427 | metaTags['og:url'] = tags.url | |
428 | metaTags['og:description'] = tags.escapedDescription | |
429 | ||
430 | if (tags.embed) { | |
431 | metaTags['og:video:url'] = tags.embed.url | |
432 | metaTags['og:video:secure_url'] = tags.embed.url | |
433 | metaTags['og:video:type'] = 'text/html' | |
434 | metaTags['og:video:width'] = EMBED_SIZE.width | |
435 | metaTags['og:video:height'] = EMBED_SIZE.height | |
436 | } | |
437 | ||
438 | return metaTags | |
439 | } | |
440 | ||
441 | private static generateStandardMetaTags (tags: Tags) { | |
442 | return { | |
443 | name: tags.escapedTitle, | |
444 | description: tags.escapedDescription, | |
445 | image: tags.image.url | |
446 | } | |
447 | } | |
448 | ||
449 | private static generateTwitterCardMetaTags (tags: Tags) { | |
450 | const metaTags = { | |
451 | 'twitter:card': tags.twitterCard, | |
452 | 'twitter:site': CONFIG.SERVICES.TWITTER.USERNAME, | |
453 | 'twitter:title': tags.escapedTitle, | |
454 | 'twitter:description': tags.escapedDescription, | |
455 | 'twitter:image': tags.image.url | |
456 | } | |
457 | ||
458 | if (tags.image.width && tags.image.height) { | |
459 | metaTags['twitter:image:width'] = tags.image.width | |
460 | metaTags['twitter:image:height'] = tags.image.height | |
461 | } | |
462 | ||
463 | if (tags.twitterCard === 'player') { | |
464 | metaTags['twitter:player'] = tags.embed.url | |
465 | metaTags['twitter:player:width'] = EMBED_SIZE.width | |
466 | metaTags['twitter:player:height'] = EMBED_SIZE.height | |
467 | } | |
468 | ||
469 | return metaTags | |
470 | } | |
471 | ||
472 | private static generateSchemaTags (tags: Tags) { | |
473 | const schema = { | |
474 | '@context': 'http://schema.org', | |
475 | '@type': tags.schemaType, | |
476 | 'name': tags.escapedTitle, | |
477 | 'description': tags.escapedDescription, | |
478 | 'image': tags.image.url, | |
479 | 'url': tags.url | |
480 | } | |
481 | ||
482 | if (tags.list) { | |
483 | schema['numberOfItems'] = tags.list.numberOfItems | |
484 | schema['thumbnailUrl'] = tags.image.url | |
485 | } | |
486 | ||
487 | if (tags.embed) { | |
488 | schema['embedUrl'] = tags.embed.url | |
489 | schema['uploadDate'] = tags.embed.createdAt | |
490 | ||
491 | if (tags.embed.duration) schema['duration'] = tags.embed.duration | |
492 | if (tags.embed.views) schema['iterationCount'] = tags.embed.views | |
493 | ||
494 | schema['thumbnailUrl'] = tags.image.url | |
495 | schema['contentUrl'] = tags.url | |
496 | } | |
497 | ||
498 | return schema | |
499 | } | |
500 | ||
501 | private static addTags (htmlStringPage: string, tagsValues: Tags) { | |
502 | const openGraphMetaTags = this.generateOpenGraphMetaTags(tagsValues) | |
503 | const standardMetaTags = this.generateStandardMetaTags(tagsValues) | |
504 | const twitterCardMetaTags = this.generateTwitterCardMetaTags(tagsValues) | |
505 | const schemaTags = this.generateSchemaTags(tagsValues) | |
506 | ||
507 | const { url, escapedTitle, embed, originUrl, disallowIndexation } = tagsValues | |
508 | ||
509 | const oembedLinkTags: { type: string, href: string, escapedTitle: string }[] = [] | |
510 | ||
511 | if (embed) { | |
512 | oembedLinkTags.push({ | |
513 | type: 'application/json+oembed', | |
514 | href: WEBSERVER.URL + '/services/oembed?url=' + encodeURIComponent(url), | |
515 | escapedTitle | |
516 | }) | |
517 | } | |
518 | ||
519 | let tagsStr = '' | |
520 | ||
521 | // Opengraph | |
522 | Object.keys(openGraphMetaTags).forEach(tagName => { | |
523 | const tagValue = openGraphMetaTags[tagName] | |
524 | ||
525 | tagsStr += `<meta property="${tagName}" content="${tagValue}" />` | |
526 | }) | |
527 | ||
528 | // Standard | |
529 | Object.keys(standardMetaTags).forEach(tagName => { | |
530 | const tagValue = standardMetaTags[tagName] | |
531 | ||
532 | tagsStr += `<meta property="${tagName}" content="${tagValue}" />` | |
533 | }) | |
534 | ||
535 | // Twitter card | |
536 | Object.keys(twitterCardMetaTags).forEach(tagName => { | |
537 | const tagValue = twitterCardMetaTags[tagName] | |
538 | ||
539 | tagsStr += `<meta property="${tagName}" content="${tagValue}" />` | |
540 | }) | |
541 | ||
542 | // OEmbed | |
543 | for (const oembedLinkTag of oembedLinkTags) { | |
544 | tagsStr += `<link rel="alternate" type="${oembedLinkTag.type}" href="${oembedLinkTag.href}" title="${oembedLinkTag.escapedTitle}" />` | |
545 | } | |
546 | ||
547 | // Schema.org | |
548 | if (schemaTags) { | |
549 | tagsStr += `<script type="application/ld+json">${JSON.stringify(schemaTags)}</script>` | |
550 | } | |
551 | ||
552 | // SEO, use origin URL | |
553 | tagsStr += `<link rel="canonical" href="${originUrl}" />` | |
554 | ||
555 | if (disallowIndexation) { | |
556 | tagsStr += `<meta name="robots" content="noindex" />` | |
557 | } | |
558 | ||
559 | return htmlStringPage.replace(CUSTOM_HTML_TAG_COMMENTS.META_TAGS, tagsStr) | |
560 | } | |
561 | } | |
562 | ||
563 | function sendHTML (html: string, res: express.Response, localizedHTML: boolean = false) { | |
564 | res.set('Content-Type', 'text/html; charset=UTF-8') | |
565 | ||
566 | if (localizedHTML) { | |
567 | res.set('Vary', 'Accept-Language') | |
568 | } | |
569 | ||
570 | return res.send(html) | |
571 | } | |
572 | ||
573 | async function serveIndexHTML (req: express.Request, res: express.Response) { | |
574 | if (req.accepts(ACCEPT_HEADERS) === 'html' || !req.headers.accept) { | |
575 | try { | |
576 | await generateHTMLPage(req, res, req.params.language) | |
577 | return | |
578 | } catch (err) { | |
579 | logger.error('Cannot generate HTML page.', { err }) | |
580 | return res.status(HttpStatusCode.INTERNAL_SERVER_ERROR_500).end() | |
581 | } | |
582 | } | |
583 | ||
584 | return res.status(HttpStatusCode.NOT_ACCEPTABLE_406).end() | |
585 | } | |
586 | ||
587 | // --------------------------------------------------------------------------- | |
588 | ||
589 | export { | |
590 | ClientHtml, | |
591 | sendHTML, | |
592 | serveIndexHTML | |
593 | } | |
594 | ||
595 | async function generateHTMLPage (req: express.Request, res: express.Response, paramLang?: string) { | |
596 | const html = await ClientHtml.getDefaultHTMLPage(req, res, paramLang) | |
597 | ||
598 | return sendHTML(html, res, true) | |
599 | } |