import cors from 'cors' import express from 'express' import { PassThrough, pipeline } from 'stream' import { logger } from '@server/helpers/logger' import { StreamReplacer } from '@server/helpers/stream-replacer' import { OBJECT_STORAGE_PROXY_PATHS } from '@server/initializers/constants' import { injectQueryToPlaylistUrls } from '@server/lib/hls' import { getHLSFileReadStream, getWebTorrentFileReadStream } from '@server/lib/object-storage' import { asyncMiddleware, ensureCanAccessPrivateVideoHLSFiles, ensureCanAccessVideoPrivateWebTorrentFiles, ensurePrivateObjectStorageProxyIsEnabled, optionalAuthenticate } from '@server/middlewares' import { HttpStatusCode } from '@shared/models' import { buildReinjectVideoFileTokenQuery, doReinjectVideoFileToken } from './shared/m3u8-playlist' import { GetObjectCommandOutput } from '@aws-sdk/client-s3' const objectStorageProxyRouter = express.Router() objectStorageProxyRouter.use(cors()) objectStorageProxyRouter.get(OBJECT_STORAGE_PROXY_PATHS.PRIVATE_WEBSEED + ':filename', ensurePrivateObjectStorageProxyIsEnabled, optionalAuthenticate, asyncMiddleware(ensureCanAccessVideoPrivateWebTorrentFiles), asyncMiddleware(proxifyWebTorrent) ) objectStorageProxyRouter.get(OBJECT_STORAGE_PROXY_PATHS.STREAMING_PLAYLISTS.PRIVATE_HLS + ':videoUUID/:filename', ensurePrivateObjectStorageProxyIsEnabled, optionalAuthenticate, asyncMiddleware(ensureCanAccessPrivateVideoHLSFiles), asyncMiddleware(proxifyHLS) ) // --------------------------------------------------------------------------- export { objectStorageProxyRouter } async function proxifyWebTorrent (req: express.Request, res: express.Response) { const filename = req.params.filename logger.debug('Proxifying WebTorrent file %s from object storage.', filename) try { const { response: s3Response, stream } = await getWebTorrentFileReadStream({ filename, rangeHeader: req.header('range') }) setS3Headers(res, s3Response) return stream.pipe(res) } catch (err) { return handleObjectStorageFailure(res, err) } } async function proxifyHLS (req: express.Request, res: express.Response) { const playlist = res.locals.videoStreamingPlaylist const video = res.locals.onlyVideo const filename = req.params.filename logger.debug('Proxifying HLS file %s from object storage.', filename) try { const { response: s3Response, stream } = await getHLSFileReadStream({ playlist: playlist.withVideo(video), filename, rangeHeader: req.header('range') }) setS3Headers(res, s3Response) const streamReplacer = filename.endsWith('.m3u8') && doReinjectVideoFileToken(req) ? new StreamReplacer(line => injectQueryToPlaylistUrls(line, buildReinjectVideoFileTokenQuery(req, filename.endsWith('master.m3u8')))) : new PassThrough() return pipeline( stream, streamReplacer, res, err => { if (!err) return handleObjectStorageFailure(res, err) } ) } catch (err) { return handleObjectStorageFailure(res, err) } } function handleObjectStorageFailure (res: express.Response, err: Error) { if (err.name === 'NoSuchKey') { logger.debug('Could not find key in object storage to proxify private HLS video file.', { err }) return res.sendStatus(HttpStatusCode.NOT_FOUND_404) } return res.fail({ status: HttpStatusCode.INTERNAL_SERVER_ERROR_500, message: err.message, type: err.name }) } function setS3Headers (res: express.Response, s3Response: GetObjectCommandOutput) { if (s3Response.$metadata.httpStatusCode === HttpStatusCode.PARTIAL_CONTENT_206) { res.setHeader('Content-Range', s3Response.ContentRange) res.status(HttpStatusCode.PARTIAL_CONTENT_206) } }