import express from 'express' import { query } from 'express-validator' import { join } from 'path' import { loadVideo } from '@server/lib/model-loaders' import { VideoPlaylistModel } from '@server/models/video/video-playlist' import { VideoPlaylistPrivacy, VideoPrivacy } from '@shared/models' import { HttpStatusCode } from '../../../shared/models/http/http-error-codes' import { isTestOrDevInstance } from '../../helpers/core-utils' import { isIdOrUUIDValid, isUUIDValid, toCompleteUUID } from '../../helpers/custom-validators/misc' import { logger } from '../../helpers/logger' import { WEBSERVER } from '../../initializers/constants' import { areValidationErrors } from './shared' const playlistPaths = [ join('videos', 'watch', 'playlist'), join('w', 'p') ] const videoPaths = [ join('videos', 'watch'), 'w' ] function buildUrls (paths: string[]) { return paths.map(p => WEBSERVER.SCHEME + '://' + join(WEBSERVER.HOST, p) + '/') } const startPlaylistURLs = buildUrls(playlistPaths) const startVideoURLs = buildUrls(videoPaths) const isURLOptions = { require_host: true, require_tld: true } // We validate 'localhost', so we don't have the top level domain if (isTestOrDevInstance()) { isURLOptions.require_tld = false } const oembedValidator = [ query('url').isURL(isURLOptions).withMessage('Should have a valid url'), query('maxwidth').optional().isInt().withMessage('Should have a valid max width'), query('maxheight').optional().isInt().withMessage('Should have a valid max height'), query('format').optional().isIn([ 'xml', 'json' ]).withMessage('Should have a valid format'), async (req: express.Request, res: express.Response, next: express.NextFunction) => { logger.debug('Checking oembed parameters', { parameters: req.query }) if (areValidationErrors(req, res)) return if (req.query.format !== undefined && req.query.format !== 'json') { return res.fail({ status: HttpStatusCode.NOT_IMPLEMENTED_501, message: 'Requested format is not implemented on server.', data: { format: req.query.format } }) } const url = req.query.url as string let urlPath: string try { urlPath = new URL(url).pathname } catch (err) { return res.fail({ status: HttpStatusCode.BAD_REQUEST_400, message: err.message, data: { url } }) } const isPlaylist = startPlaylistURLs.some(u => url.startsWith(u)) const isVideo = isPlaylist ? false : startVideoURLs.some(u => url.startsWith(u)) const startIsOk = isVideo || isPlaylist const parts = urlPath.split('/') if (startIsOk === false || parts.length === 0) { return res.fail({ status: HttpStatusCode.BAD_REQUEST_400, message: 'Invalid url.', data: { url } }) } const elementId = toCompleteUUID(parts.pop()) if (isIdOrUUIDValid(elementId) === false) { return res.fail({ message: 'Invalid video or playlist id.' }) } if (isVideo) { const video = await loadVideo(elementId, 'all') if (!video) { return res.fail({ status: HttpStatusCode.NOT_FOUND_404, message: 'Video not found' }) } if ( video.privacy === VideoPrivacy.PUBLIC || (video.privacy === VideoPrivacy.UNLISTED && isUUIDValid(elementId) === true) ) { res.locals.videoAll = video return next() } return res.fail({ status: HttpStatusCode.FORBIDDEN_403, message: 'Video is not publicly available' }) } // Is playlist const videoPlaylist = await VideoPlaylistModel.loadWithAccountAndChannelSummary(elementId, undefined) if (!videoPlaylist) { return res.fail({ status: HttpStatusCode.NOT_FOUND_404, message: 'Video playlist not found' }) } if ( videoPlaylist.privacy === VideoPlaylistPrivacy.PUBLIC || (videoPlaylist.privacy === VideoPlaylistPrivacy.UNLISTED && isUUIDValid(elementId)) ) { res.locals.videoPlaylistSummary = videoPlaylist return next() } return res.fail({ status: HttpStatusCode.FORBIDDEN_403, message: 'Playlist is not public' }) } ] // --------------------------------------------------------------------------- export { oembedValidator }