mirror of https://github.com/Chocobozzz/PeerTube
547 lines
16 KiB
TypeScript
547 lines
16 KiB
TypeScript
import * as express from 'express'
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import { readFile } from 'fs-extra'
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import { join } from 'path'
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import validator from 'validator'
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import { buildFileLocale, getDefaultLocale, is18nLocale, POSSIBLE_LOCALES } from '../../shared/core-utils/i18n/i18n'
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import { HttpStatusCode } from '../../shared/core-utils/miscs/http-error-codes'
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import { VideoPlaylistPrivacy, VideoPrivacy } from '../../shared/models/videos'
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import { isTestInstance, sha256 } from '../helpers/core-utils'
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import { escapeHTML } from '@shared/core-utils/renderer'
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import { logger } from '../helpers/logger'
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import { CONFIG } from '../initializers/config'
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import {
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ACCEPT_HEADERS,
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ACTOR_IMAGES_SIZE,
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CUSTOM_HTML_TAG_COMMENTS,
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EMBED_SIZE,
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FILES_CONTENT_HASH,
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PLUGIN_GLOBAL_CSS_PATH,
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WEBSERVER
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} from '../initializers/constants'
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import { AccountModel } from '../models/account/account'
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import { VideoModel } from '../models/video/video'
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import { VideoChannelModel } from '../models/video/video-channel'
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import { getActivityStreamDuration } from '../models/video/video-format-utils'
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import { VideoPlaylistModel } from '../models/video/video-playlist'
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import { MAccountActor, MChannelActor } from '../types/models'
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import { mdToPlainText } from '../helpers/markdown'
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type Tags = {
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ogType: string
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twitterCard: 'player' | 'summary' | 'summary_large_image'
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schemaType: string
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list?: {
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numberOfItems: number
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}
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siteName: string
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title: string
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url: string
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originUrl: string
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description: string
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embed?: {
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url: string
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createdAt: string
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duration?: string
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views?: number
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}
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image: {
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url: string
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width?: number
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height?: number
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}
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}
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class ClientHtml {
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private static htmlCache: { [path: string]: string } = {}
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static invalidCache () {
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logger.info('Cleaning HTML cache.')
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ClientHtml.htmlCache = {}
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}
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static async getDefaultHTMLPage (req: express.Request, res: express.Response, paramLang?: string) {
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const html = paramLang
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? await ClientHtml.getIndexHTML(req, res, paramLang)
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: await ClientHtml.getIndexHTML(req, res)
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let customHtml = ClientHtml.addTitleTag(html)
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customHtml = ClientHtml.addDescriptionTag(customHtml)
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return customHtml
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}
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static async getWatchHTMLPage (videoId: string, req: express.Request, res: express.Response) {
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// Let Angular application handle errors
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if (!validator.isInt(videoId) && !validator.isUUID(videoId, 4)) {
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res.status(HttpStatusCode.NOT_FOUND_404)
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return ClientHtml.getIndexHTML(req, res)
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}
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const [ html, video ] = await Promise.all([
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ClientHtml.getIndexHTML(req, res),
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VideoModel.loadWithBlacklist(videoId)
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])
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// Let Angular application handle errors
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if (!video || video.privacy === VideoPrivacy.PRIVATE || video.privacy === VideoPrivacy.INTERNAL || video.VideoBlacklist) {
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res.status(HttpStatusCode.NOT_FOUND_404)
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return html
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}
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let customHtml = ClientHtml.addTitleTag(html, escapeHTML(video.name))
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customHtml = ClientHtml.addDescriptionTag(customHtml, mdToPlainText(video.description))
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const url = WEBSERVER.URL + video.getWatchStaticPath()
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const originUrl = video.url
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const title = escapeHTML(video.name)
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const siteName = escapeHTML(CONFIG.INSTANCE.NAME)
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const description = mdToPlainText(video.description)
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const image = {
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url: WEBSERVER.URL + video.getPreviewStaticPath()
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}
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const embed = {
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url: WEBSERVER.URL + video.getEmbedStaticPath(),
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createdAt: video.createdAt.toISOString(),
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duration: getActivityStreamDuration(video.duration),
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views: video.views
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}
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const ogType = 'video'
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const twitterCard = CONFIG.SERVICES.TWITTER.WHITELISTED ? 'player' : 'summary_large_image'
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const schemaType = 'VideoObject'
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customHtml = ClientHtml.addTags(customHtml, {
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url,
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originUrl,
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siteName,
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title,
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description,
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image,
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embed,
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ogType,
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twitterCard,
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schemaType
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})
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return customHtml
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}
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static async getWatchPlaylistHTMLPage (videoPlaylistId: string, req: express.Request, res: express.Response) {
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// Let Angular application handle errors
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if (!validator.isInt(videoPlaylistId) && !validator.isUUID(videoPlaylistId, 4)) {
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res.status(HttpStatusCode.NOT_FOUND_404)
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return ClientHtml.getIndexHTML(req, res)
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}
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const [ html, videoPlaylist ] = await Promise.all([
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ClientHtml.getIndexHTML(req, res),
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VideoPlaylistModel.loadWithAccountAndChannel(videoPlaylistId, null)
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])
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// Let Angular application handle errors
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if (!videoPlaylist || videoPlaylist.privacy === VideoPlaylistPrivacy.PRIVATE) {
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res.status(HttpStatusCode.NOT_FOUND_404)
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return html
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}
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let customHtml = ClientHtml.addTitleTag(html, escapeHTML(videoPlaylist.name))
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customHtml = ClientHtml.addDescriptionTag(customHtml, mdToPlainText(videoPlaylist.description))
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const url = videoPlaylist.getWatchUrl()
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const originUrl = videoPlaylist.url
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const title = escapeHTML(videoPlaylist.name)
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const siteName = escapeHTML(CONFIG.INSTANCE.NAME)
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const description = mdToPlainText(videoPlaylist.description)
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const image = {
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url: videoPlaylist.getThumbnailUrl()
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}
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const embed = {
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url: WEBSERVER.URL + videoPlaylist.getEmbedStaticPath(),
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createdAt: videoPlaylist.createdAt.toISOString()
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}
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const list = {
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numberOfItems: videoPlaylist.get('videosLength') as number
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}
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const ogType = 'video'
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const twitterCard = CONFIG.SERVICES.TWITTER.WHITELISTED ? 'player' : 'summary'
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const schemaType = 'ItemList'
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customHtml = ClientHtml.addTags(customHtml, {
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url,
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originUrl,
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siteName,
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embed,
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title,
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description,
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image,
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list,
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ogType,
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twitterCard,
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schemaType
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})
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return customHtml
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}
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static async getAccountHTMLPage (nameWithHost: string, req: express.Request, res: express.Response) {
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return this.getAccountOrChannelHTMLPage(() => AccountModel.loadByNameWithHost(nameWithHost), req, res)
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}
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static async getVideoChannelHTMLPage (nameWithHost: string, req: express.Request, res: express.Response) {
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return this.getAccountOrChannelHTMLPage(() => VideoChannelModel.loadByNameWithHostAndPopulateAccount(nameWithHost), req, res)
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}
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static async getEmbedHTML () {
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const path = ClientHtml.getEmbedPath()
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if (!isTestInstance() && ClientHtml.htmlCache[path]) return ClientHtml.htmlCache[path]
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const buffer = await readFile(path)
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let html = buffer.toString()
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html = await ClientHtml.addAsyncPluginCSS(html)
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html = ClientHtml.addCustomCSS(html)
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html = ClientHtml.addTitleTag(html)
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ClientHtml.htmlCache[path] = html
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return html
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}
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private static async getAccountOrChannelHTMLPage (
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loader: () => Promise<MAccountActor | MChannelActor>,
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req: express.Request,
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res: express.Response
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) {
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const [ html, entity ] = await Promise.all([
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ClientHtml.getIndexHTML(req, res),
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loader()
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])
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// Let Angular application handle errors
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if (!entity) {
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res.status(HttpStatusCode.NOT_FOUND_404)
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return ClientHtml.getIndexHTML(req, res)
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}
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let customHtml = ClientHtml.addTitleTag(html, escapeHTML(entity.getDisplayName()))
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customHtml = ClientHtml.addDescriptionTag(customHtml, mdToPlainText(entity.description))
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const url = entity.getLocalUrl()
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const originUrl = entity.Actor.url
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const siteName = escapeHTML(CONFIG.INSTANCE.NAME)
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const title = escapeHTML(entity.getDisplayName())
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const description = mdToPlainText(entity.description)
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const image = {
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url: entity.Actor.getAvatarUrl(),
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width: ACTOR_IMAGES_SIZE.AVATARS.width,
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height: ACTOR_IMAGES_SIZE.AVATARS.height
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}
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const ogType = 'website'
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const twitterCard = 'summary'
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const schemaType = 'ProfilePage'
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customHtml = ClientHtml.addTags(customHtml, {
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url,
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originUrl,
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title,
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siteName,
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description,
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image,
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ogType,
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twitterCard,
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schemaType
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})
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return customHtml
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}
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private static async getIndexHTML (req: express.Request, res: express.Response, paramLang?: string) {
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const path = ClientHtml.getIndexPath(req, res, paramLang)
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if (!isTestInstance() && ClientHtml.htmlCache[path]) return ClientHtml.htmlCache[path]
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const buffer = await readFile(path)
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let html = buffer.toString()
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if (paramLang) html = ClientHtml.addHtmlLang(html, paramLang)
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html = ClientHtml.addManifestContentHash(html)
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html = ClientHtml.addFaviconContentHash(html)
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html = ClientHtml.addLogoContentHash(html)
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html = ClientHtml.addCustomCSS(html)
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html = await ClientHtml.addAsyncPluginCSS(html)
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ClientHtml.htmlCache[path] = html
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return html
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}
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private static getIndexPath (req: express.Request, res: express.Response, paramLang: string) {
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let lang: string
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// Check param lang validity
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if (paramLang && is18nLocale(paramLang)) {
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lang = paramLang
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// Save locale in cookies
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res.cookie('clientLanguage', lang, {
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secure: WEBSERVER.SCHEME === 'https',
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sameSite: 'none',
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maxAge: 1000 * 3600 * 24 * 90 // 3 months
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})
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} else if (req.cookies.clientLanguage && is18nLocale(req.cookies.clientLanguage)) {
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lang = req.cookies.clientLanguage
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} else {
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lang = req.acceptsLanguages(POSSIBLE_LOCALES) || getDefaultLocale()
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}
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return join(__dirname, '../../../client/dist/' + buildFileLocale(lang) + '/index.html')
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}
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private static getEmbedPath () {
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return join(__dirname, '../../../client/dist/standalone/videos/embed.html')
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}
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private static addHtmlLang (htmlStringPage: string, paramLang: string) {
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return htmlStringPage.replace('<html>', `<html lang="${paramLang}">`)
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}
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private static addManifestContentHash (htmlStringPage: string) {
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return htmlStringPage.replace('[manifestContentHash]', FILES_CONTENT_HASH.MANIFEST)
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}
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private static addFaviconContentHash (htmlStringPage: string) {
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return htmlStringPage.replace('[faviconContentHash]', FILES_CONTENT_HASH.FAVICON)
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}
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private static addLogoContentHash (htmlStringPage: string) {
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return htmlStringPage.replace('[logoContentHash]', FILES_CONTENT_HASH.LOGO)
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}
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private static addTitleTag (htmlStringPage: string, title?: string) {
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let text = title || CONFIG.INSTANCE.NAME
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if (title) text += ` - ${CONFIG.INSTANCE.NAME}`
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const titleTag = `<title>${text}</title>`
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return htmlStringPage.replace(CUSTOM_HTML_TAG_COMMENTS.TITLE, titleTag)
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}
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private static addDescriptionTag (htmlStringPage: string, description?: string) {
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const content = description || CONFIG.INSTANCE.SHORT_DESCRIPTION
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const descriptionTag = `<meta name="description" content="${content}" />`
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return htmlStringPage.replace(CUSTOM_HTML_TAG_COMMENTS.DESCRIPTION, descriptionTag)
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}
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private static addCustomCSS (htmlStringPage: string) {
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const styleTag = `<style class="custom-css-style">${CONFIG.INSTANCE.CUSTOMIZATIONS.CSS}</style>`
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return htmlStringPage.replace(CUSTOM_HTML_TAG_COMMENTS.CUSTOM_CSS, styleTag)
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}
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private static async addAsyncPluginCSS (htmlStringPage: string) {
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const globalCSSContent = await readFile(PLUGIN_GLOBAL_CSS_PATH)
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if (globalCSSContent.byteLength === 0) return htmlStringPage
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const fileHash = sha256(globalCSSContent)
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const linkTag = `<link rel="stylesheet" href="/plugins/global.css?hash=${fileHash}" />`
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return htmlStringPage.replace('</head>', linkTag + '</head>')
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}
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private static generateOpenGraphMetaTags (tags: Tags) {
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const metaTags = {
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'og:type': tags.ogType,
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'og:site_name': tags.siteName,
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'og:title': tags.title,
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'og:image': tags.image.url
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}
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if (tags.image.width && tags.image.height) {
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metaTags['og:image:width'] = tags.image.width
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metaTags['og:image:height'] = tags.image.height
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}
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metaTags['og:url'] = tags.url
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metaTags['og:description'] = mdToPlainText(tags.description)
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if (tags.embed) {
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metaTags['og:video:url'] = tags.embed.url
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metaTags['og:video:secure_url'] = tags.embed.url
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metaTags['og:video:type'] = 'text/html'
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metaTags['og:video:width'] = EMBED_SIZE.width
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metaTags['og:video:height'] = EMBED_SIZE.height
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}
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return metaTags
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}
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private static generateStandardMetaTags (tags: Tags) {
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return {
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name: tags.title,
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description: mdToPlainText(tags.description),
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image: tags.image.url
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}
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}
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private static generateTwitterCardMetaTags (tags: Tags) {
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const metaTags = {
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'twitter:card': tags.twitterCard,
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'twitter:site': CONFIG.SERVICES.TWITTER.USERNAME,
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'twitter:title': tags.title,
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'twitter:description': tags.description,
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'twitter:image': tags.image.url
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}
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if (tags.image.width && tags.image.height) {
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metaTags['twitter:image:width'] = tags.image.width
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metaTags['twitter:image:height'] = tags.image.height
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}
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if (tags.twitterCard === 'player') {
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metaTags['twitter:player'] = tags.embed.url
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metaTags['twitter:player:width'] = EMBED_SIZE.width
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metaTags['twitter:player:height'] = EMBED_SIZE.height
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}
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return metaTags
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}
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private static generateSchemaTags (tags: Tags) {
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const schema = {
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'@context': 'http://schema.org',
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'@type': tags.schemaType,
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'name': tags.title,
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'description': tags.description,
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'image': tags.image.url,
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'url': tags.url
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}
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if (tags.list) {
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schema['numberOfItems'] = tags.list.numberOfItems
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schema['thumbnailUrl'] = tags.image.url
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}
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if (tags.embed) {
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schema['embedUrl'] = tags.embed.url
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schema['uploadDate'] = tags.embed.createdAt
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if (tags.embed.duration) schema['duration'] = tags.embed.duration
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if (tags.embed.views) schema['iterationCount'] = tags.embed.views
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schema['thumbnailUrl'] = tags.image.url
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schema['contentUrl'] = tags.url
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}
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return schema
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}
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private static addTags (htmlStringPage: string, tagsValues: Tags) {
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const openGraphMetaTags = this.generateOpenGraphMetaTags(tagsValues)
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const standardMetaTags = this.generateStandardMetaTags(tagsValues)
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const twitterCardMetaTags = this.generateTwitterCardMetaTags(tagsValues)
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const schemaTags = this.generateSchemaTags(tagsValues)
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const { url, title, embed, originUrl } = tagsValues
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const oembedLinkTags: { type: string, href: string, title: string }[] = []
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if (embed) {
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oembedLinkTags.push({
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type: 'application/json+oembed',
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href: WEBSERVER.URL + '/services/oembed?url=' + encodeURIComponent(url),
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title
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})
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}
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let tagsString = ''
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// Opengraph
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Object.keys(openGraphMetaTags).forEach(tagName => {
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const tagValue = openGraphMetaTags[tagName]
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tagsString += `<meta property="${tagName}" content="${tagValue}" />`
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})
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// Standard
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Object.keys(standardMetaTags).forEach(tagName => {
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const tagValue = standardMetaTags[tagName]
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tagsString += `<meta property="${tagName}" content="${tagValue}" />`
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})
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// Twitter card
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Object.keys(twitterCardMetaTags).forEach(tagName => {
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const tagValue = twitterCardMetaTags[tagName]
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tagsString += `<meta property="${tagName}" content="${tagValue}" />`
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})
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// OEmbed
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for (const oembedLinkTag of oembedLinkTags) {
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tagsString += `<link rel="alternate" type="${oembedLinkTag.type}" href="${oembedLinkTag.href}" title="${oembedLinkTag.title}" />`
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}
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// Schema.org
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if (schemaTags) {
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tagsString += `<script type="application/ld+json">${JSON.stringify(schemaTags)}</script>`
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}
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// SEO, use origin URL
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tagsString += `<link rel="canonical" href="${originUrl}" />`
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return htmlStringPage.replace(CUSTOM_HTML_TAG_COMMENTS.META_TAGS, tagsString)
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}
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}
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function sendHTML (html: string, res: express.Response) {
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res.set('Content-Type', 'text/html; charset=UTF-8')
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return res.send(html)
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}
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async function serveIndexHTML (req: express.Request, res: express.Response) {
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if (req.accepts(ACCEPT_HEADERS) === 'html' ||
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!req.headers.accept) {
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try {
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await generateHTMLPage(req, res, req.params.language)
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return
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} catch (err) {
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logger.error('Cannot generate HTML page.', err)
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return res.sendStatus(HttpStatusCode.INTERNAL_SERVER_ERROR_500)
|
|
}
|
|
}
|
|
|
|
return res.sendStatus(HttpStatusCode.NOT_ACCEPTABLE_406)
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------
|
|
|
|
export {
|
|
ClientHtml,
|
|
sendHTML,
|
|
serveIndexHTML
|
|
}
|
|
|
|
async function generateHTMLPage (req: express.Request, res: express.Response, paramLang?: string) {
|
|
const html = await ClientHtml.getDefaultHTMLPage(req, res, paramLang)
|
|
|
|
return sendHTML(html, res)
|
|
}
|