305 lines
12 KiB
JavaScript
305 lines
12 KiB
JavaScript
const RealDebridClient = require('real-debrid-api');
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const { Type } = require('../lib/types');
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const { isVideo, isArchive } = require('../lib/extension');
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const { delay } = require('../lib/promises');
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const StaticResponse = require('./static');
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const { getMagnetLink } = require('../lib/magnetHelper');
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const { chunkArray, BadTokenError } = require('./mochHelper');
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const MIN_SIZE = 5 * 1024 * 1024; // 5 MB
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const CATALOG_MAX_PAGE = 5;
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const CATALOG_PAGE_SIZE = 100;
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const NON_BLACKLIST_ERRORS = ['ESOCKETTIMEDOUT', 'EAI_AGAIN'];
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const KEY = "realdebrid"
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async function getCachedStreams(streams, apiKey) {
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const hashes = streams.map(stream => stream.infoHash);
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const available = await _getInstantAvailable(hashes, apiKey);
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return available && streams
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.reduce((mochStreams, stream) => {
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const cachedEntry = available[stream.infoHash];
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const cachedIds = _getCachedFileIds(stream.fileIdx, cachedEntry);
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const cachedIdsString = cachedIds.length ? cachedIds.join(',') : null;
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mochStreams[stream.infoHash] = {
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url: `${apiKey}/${stream.infoHash}/${cachedIdsString}/${stream.fileIdx}`,
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cached: !!cachedIdsString
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};
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return mochStreams;
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}, {})
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}
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async function _getInstantAvailable(hashes, apiKey, retries = 3) {
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const options = await getDefaultOptions();
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const RD = new RealDebridClient(apiKey, options);
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const hashBatches = chunkArray(hashes, 150)
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return Promise.all(hashBatches.map(batch => RD.torrents.instantAvailability(batch)
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.then(response => {
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if (typeof response !== 'object') {
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return Promise.reject(new Error('RD returned non JSON response: ' + response));
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}
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return response;
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})))
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.then(results => results.reduce((all, result) => Object.assign(all, result), {}))
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.catch(error => {
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if (error && error.code === 8) {
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return Promise.reject(BadTokenError);
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}
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if (retries > 0 && NON_BLACKLIST_ERRORS.some(v => error.message && error.message.includes(v))) {
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return _getInstantAvailable(hashes, apiKey, retries - 1);
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}
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console.warn(`Failed RealDebrid cached [${hashes[0]}] torrent availability request:`, error.message);
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return undefined;
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});
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}
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function _getCachedFileIds(fileIndex, hosterResults) {
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if (!hosterResults || Array.isArray(hosterResults)) {
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return [];
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}
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// if not all cached files are videos, then the torrent will be zipped to a rar
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const cachedTorrents = Object.values(hosterResults)
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.reduce((a, b) => a.concat(b), [])
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.filter(cached => !Number.isInteger(fileIndex) && Object.keys(cached).length || cached[fileIndex + 1])
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.filter(cached => Object.values(cached).every(file => isVideo(file.filename)))
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.map(cached => Object.keys(cached))
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.sort((a, b) => b.length - a.length);
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return cachedTorrents.length && cachedTorrents[0] || [];
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}
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async function getCatalog(apiKey, offset, ip) {
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if (offset > 0) {
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return [];
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}
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const options = await getDefaultOptions(ip);
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const RD = new RealDebridClient(apiKey, options);
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return _getAllTorrents(RD)
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.then(torrents => Array.isArray(torrents) ? torrents : [])
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.then(torrents => torrents
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.filter(torrent => torrent && statusReady(torrent.status))
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.map(torrent => ({
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id: `${KEY}:${torrent.id}`,
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type: Type.OTHER,
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name: torrent.filename
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})));
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}
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async function _getAllTorrents(RD, page = 1) {
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return RD.torrents.get(page - 1, page, CATALOG_PAGE_SIZE)
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.then(torrents => torrents && torrents.length === CATALOG_PAGE_SIZE && page < CATALOG_MAX_PAGE
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? _getAllTorrents(RD, page + 1)
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.then(nextTorrents => torrents.concat(nextTorrents))
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.catch(() => torrents)
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: torrents)
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}
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async function getItemMeta(itemId, apiKey, ip) {
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const options = await getDefaultOptions(ip);
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const RD = new RealDebridClient(apiKey, options);
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return _getTorrentInfo(RD, itemId)
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.then(torrent => ({
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id: `${KEY}:${torrent.id}`,
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type: Type.OTHER,
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name: torrent.filename,
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videos: torrent.files
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.filter(file => file.selected)
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.filter(file => isVideo(file.path))
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.map((file, index) => ({
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id: `${KEY}:${torrent.id}:${file.id}`,
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title: file.path,
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released: new Date(new Date(torrent.added).getTime() - index).toISOString(),
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stream: { url: `${apiKey}/${torrent.hash.toLowerCase()}/null/${file.id - 1}` }
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}))
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}))
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}
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async function resolve({ ip, apiKey, infoHash, cachedEntryInfo, fileIndex }) {
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console.log(`Unrestricting RealDebrid ${infoHash} [${fileIndex}]`);
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const options = await getDefaultOptions(ip);
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const RD = new RealDebridClient(apiKey, options);
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return _resolve(RD, infoHash, cachedEntryInfo, fileIndex)
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.catch(error => {
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if (accessDeniedError(error)) {
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console.log(`Access denied to RealDebrid ${infoHash} [${fileIndex}]`);
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return StaticResponse.FAILED_ACCESS;
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}
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return Promise.reject(`Failed RealDebrid adding torrent ${JSON.stringify(error)}`);
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});
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}
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async function _resolve(RD, infoHash, cachedEntryInfo, fileIndex) {
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const torrentId = await _createOrFindTorrentId(RD, infoHash, cachedEntryInfo, fileIndex);
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const torrent = await _getTorrentInfo(RD, torrentId);
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if (torrent && statusReady(torrent.status)) {
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return _unrestrictLink(RD, torrent, fileIndex);
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} else if (torrent && statusDownloading(torrent.status)) {
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console.log(`Downloading to RealDebrid ${infoHash} [${fileIndex}]...`);
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return StaticResponse.DOWNLOADING;
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} else if (torrent && statusMagnetError(torrent.status)) {
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console.log(`Failed RealDebrid opening torrent ${infoHash} [${fileIndex}] due to magnet error`);
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return StaticResponse.FAILED_OPENING;
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} else if (torrent && statusError(torrent.status)) {
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return _retryCreateTorrent(RD, infoHash, fileIndex);
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} else if (torrent && (statusWaitingSelection(torrent.status) || statusOpening(torrent.status))) {
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console.log(`Trying to select files on RealDebrid ${infoHash} [${fileIndex}]...`);
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return _selectTorrentFiles(RD, torrent)
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.then(() => {
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console.log(`Downloading to RealDebrid ${infoHash} [${fileIndex}]...`);
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return StaticResponse.DOWNLOADING
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})
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.catch(error => {
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console.log(`Failed RealDebrid opening torrent ${infoHash} [${fileIndex}]:`, error);
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return StaticResponse.FAILED_OPENING;
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});
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}
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return Promise.reject(`Failed RealDebrid adding torrent ${JSON.stringify(torrent)}`);
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}
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async function _createOrFindTorrentId(RD, infoHash, cachedFileIds, fileIndex) {
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return _findTorrent(RD, infoHash, fileIndex)
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.catch(() => _createTorrentId(RD, infoHash, cachedFileIds));
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}
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async function _findTorrent(RD, infoHash, fileIndex) {
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const torrents = await RD.torrents.get(0, 1) || [];
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const foundTorrents = torrents
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.filter(torrent => torrent.hash.toLowerCase() === infoHash)
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.filter(torrent => !statusError(torrent.status));
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const foundTorrent = await _findBestFitTorrent(RD, foundTorrents, fileIndex);
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return foundTorrent && foundTorrent.id || Promise.reject('No recent torrent found');
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}
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async function _findBestFitTorrent(RD, torrents, fileIndex) {
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if (torrents.length === 1) {
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return torrents[0];
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}
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const torrentInfos = await Promise.all(torrents.map(torrent => _getTorrentInfo(RD, torrent.id)));
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const bestFitTorrents = torrentInfos
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.filter(torrent => torrent.files.find(f => f.id === fileIndex + 1 && f.selected))
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.sort((a, b) => b.links.length - a.links.length);
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return bestFitTorrents[0] || torrents[0];
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}
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async function _getTorrentInfo(RD, torrentId) {
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if (!torrentId || typeof torrentId === 'object') {
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return torrentId || Promise.reject('No RealDebrid torrentId provided')
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}
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return RD.torrents.info(torrentId);
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}
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async function _createTorrentId(RD, infoHash, cachedFileIds) {
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const magnetLink = await getMagnetLink(infoHash);
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const addedMagnet = await RD.torrents.addMagnet(magnetLink);
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if (cachedFileIds && !['null', 'undefined'].includes(cachedFileIds)) {
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await RD.torrents.selectFiles(addedMagnet.id, cachedFileIds);
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}
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return addedMagnet.id;
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}
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async function _recreateTorrentId(RD, infoHash, fileIndex) {
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const newTorrentId = await _createTorrentId(RD, infoHash);
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await _selectTorrentFiles(RD, { id: newTorrentId }, fileIndex);
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return newTorrentId;
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}
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async function _retryCreateTorrent(RD, infoHash, fileIndex) {
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console.log(`Retry failed download in RealDebrid ${infoHash} [${fileIndex}]...`);
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const newTorrentId = await _recreateTorrentId(RD, infoHash, fileIndex);
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const newTorrent = await _getTorrentInfo(RD, newTorrentId);
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return newTorrent && statusReady(newTorrent.status)
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? _unrestrictLink(RD, newTorrent, fileIndex)
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: StaticResponse.FAILED_DOWNLOAD;
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}
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async function _selectTorrentFiles(RD, torrent, fileIndex) {
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torrent = statusWaitingSelection(torrent.status) ? torrent : await _openTorrent(RD, torrent.id);
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if (torrent && torrent.files && statusWaitingSelection(torrent.status)) {
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const videoFileIds = Number.isInteger(fileIndex) ? `${fileIndex + 1}` : torrent.files
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.filter(file => isVideo(file.path))
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.filter(file => file.bytes > MIN_SIZE)
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.map(file => file.id)
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.join(',');
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return RD.torrents.selectFiles(torrent.id, videoFileIds);
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}
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return Promise.reject('Failed RealDebrid torrent file selection')
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}
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async function _openTorrent(RD, torrentId, pollCounter = 0, pollRate = 2000, maxPollNumber = 15) {
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return _getTorrentInfo(RD, torrentId)
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.then(torrent => torrent && statusOpening(torrent.status) && pollCounter < maxPollNumber
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? delay(pollRate).then(() => _openTorrent(RD, torrentId, pollCounter + 1))
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: torrent);
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}
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async function _unrestrictLink(RD, torrent, fileIndex) {
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const targetFile = torrent.files.find(file => file.id === fileIndex + 1)
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|| torrent.files.filter(file => file.selected).sort((a, b) => b.bytes - a.bytes)[0];
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if (!targetFile.selected) {
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console.log(`Target RealDebrid file is not downloaded: ${JSON.stringify(torrent)}`);
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await _recreateTorrentId(RD, torrent.hash.toLowerCase(), fileIndex);
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return StaticResponse.DOWNLOADING;
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}
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const selectedFiles = torrent.files.filter(file => file.selected);
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const fileLink = torrent.links.length === 1
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? torrent.links[0]
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: torrent.links[selectedFiles.indexOf(targetFile)];
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if (!fileLink || !fileLink.length) {
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return Promise.reject(`No RealDebrid links found for ${torrent.hash} [${fileIndex}]`);
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}
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return _unrestrictFileLink(RD, fileLink, torrent, fileIndex);
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}
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async function _unrestrictFileLink(RD, fileLink, torrent, fileIndex) {
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return RD.unrestrict.link(fileLink)
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.then(response => response.download)
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.then(unrestrictedLink => {
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if (isArchive(unrestrictedLink)) {
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return StaticResponse.FAILED_RAR;
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}
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console.log(`Unrestricted RealDebrid ${torrent.hash} [${fileIndex}] to ${unrestrictedLink}`);
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return unrestrictedLink;
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})
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.catch(error => {
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if (error.code === 19) {
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return _retryCreateTorrent(RD, torrent.hash.toLowerCase(), fileIndex);
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}
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return Promise.reject(error);
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});
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}
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function statusError(status) {
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return ['error', 'magnet_error'].includes(status);
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}
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function statusMagnetError(status) {
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return status === 'magnet_error';
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}
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function statusOpening(status) {
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return status === 'magnet_conversion';
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}
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function statusWaitingSelection(status) {
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return status === 'waiting_files_selection';
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}
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function statusDownloading(status) {
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return ['downloading', 'uploading', 'queued'].includes(status);
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}
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function statusReady(status) {
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return ['downloaded', 'dead'].includes(status);
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}
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function accessDeniedError(error) {
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return [9, 20].includes(error && error.code);
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}
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async function getDefaultOptions(ip) {
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return { ip, timeout: 30000 };
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}
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module.exports = { getCachedStreams, resolve, getCatalog, getItemMeta }; |