Files
torrentio/addon/moch/realdebrid.js
2020-04-08 21:44:15 +02:00

120 lines
5.0 KiB
JavaScript

const RealDebridClient = require('real-debrid-api');
const namedQueue = require('named-queue');
const { encode } = require('magnet-uri');
const isVideo = require('../lib/video');
const { getRandomProxy, getRandomUserAgent } = require('../lib/request_helper');
const { cacheWrapResolvedUrl, cacheWrapProxy, cacheUserAgent } = require('../lib/cache');
const RESOLVER_HOST = process.env.RESOLVER_HOST || 'http://localhost:7050';
const unrestrictQueue = new namedQueue((task, callback) => task.method()
.then(result => callback(false, result))
.catch((error => callback(error))));
async function applyMoch(streams, apiKey) {
const options = await getDefaultOptions(apiKey);
const RD = new RealDebridClient(apiKey, options);
const hashes = streams.map(stream => stream.infoHash);
const available = await RD.torrents.instantAvailability(hashes)
.catch(error => {
console.warn('Failed cached torrent availability request: ', error);
return undefined;
});
if (available) {
streams.forEach(stream => {
const cachedEntry = available[stream.infoHash];
const cachedIds = _getCachedFileIds(stream.fileIdx, cachedEntry).join(',');
if (cachedIds.length) {
stream.name = `[RD+] ${stream.name}`;
stream.url = `${RESOLVER_HOST}/realdebrid/${apiKey}/${stream.infoHash}/${cachedIds}/${stream.fileIdx}`;
delete stream.infoHash;
delete stream.fileIndex;
}
});
}
return streams;
}
async function resolve(apiKey, infoHash, cachedFileIds, fileIndex) {
if (!apiKey || !infoHash || !cachedFileIds || !cachedFileIds.length) {
return Promise.reject("No valid parameters passed");
}
const id = `${apiKey}_${infoHash}_${fileIndex}`;
const method = () => cacheWrapResolvedUrl(id, () => _unrestrict(apiKey, infoHash, cachedFileIds, fileIndex));
return new Promise(((resolve, reject) => {
unrestrictQueue.push({ id, method }, (error, result) => result ? resolve(result) : reject(error));
}));
}
function _getCachedFileIds(fileIndex, hosterResults) {
if (!hosterResults || Array.isArray(hosterResults)) {
return [];
}
// if not all cached files are videos, then the torrent will be zipped to a rar
const cachedTorrents = Object.values(hosterResults)
.reduce((a, b) => a.concat(b), [])
.filter(cached => !Number.isInteger(fileIndex) && Object.keys(cached).length || cached[fileIndex + 1])
.filter(cached => Object.values(cached).every(file => isVideo(file.filename)))
.map(cached => Object.keys(cached))
.sort((a, b) => b.length - a.length);
return cachedTorrents.length && cachedTorrents[0] || [];
}
async function _unrestrict(apiKey, infoHash, cachedFileIds, fileIndex) {
console.log(`Unrestricting ${infoHash} [${fileIndex}]`);
const options = await getDefaultOptions(apiKey);
const RD = new RealDebridClient(apiKey, options);
const torrentId = await _createOrFindTorrentId(RD, infoHash, cachedFileIds);
if (torrentId) {
const info = await RD.torrents.info(torrentId);
const targetFile = info.files.find(file => file.id === fileIndex + 1)
|| info.files.filter(file => file.selected).sort((a, b) => b.bytes - a.bytes)[0];
const selectedFiles = info.files.filter(file => file.selected);
const fileLink = info.links.length === 1
? info.links[0]
: info.links[selectedFiles.indexOf(targetFile)];
const unrestrictedLink = await _unrestrictLink(RD, fileLink);
console.log(`Unrestricted ${infoHash} [${fileIndex}] to ${unrestrictedLink}`);
return unrestrictedLink;
}
return Promise.reject("Failed adding torrent");
}
async function _createOrFindTorrentId(RD, infoHash, cachedFileIds) {
return RD.torrents.get(0, 1)
.then(torrents => torrents.find(torrent => torrent.hash.toLowerCase() === infoHash))
.then(torrent => torrent && torrent.id || Promise.reject('No recent torrent found'))
.catch((error) => RD.torrents.addMagnet(encode({ infoHash }))
.then(response => RD.torrents.selectFiles(response.id, cachedFileIds)
.then((() => response.id))))
.catch(error => {
console.warn('Failed RealDebrid torrent retrieval', error);
return undefined;
});
}
async function _unrestrictLink(RD, link) {
if (!link || !link.length) {
return Promise.reject("No available links found");
}
return RD.unrestrict.link(link)
.then(unrestrictedLink => unrestrictedLink.download);
// .then(unrestrictedLink => RD.streaming.transcode(unrestrictedLink.id))
// .then(transcodedLink => {
// const url = transcodedLink.apple && transcodedLink.apple.full
// || transcodedLink[Object.keys(transcodedLink)[0]].full;
// console.log(`Unrestricted ${link} to ${url}`);
// return url;
// });
}
async function getDefaultOptions(id) {
const userAgent = await cacheUserAgent(id, () => getRandomUserAgent()).catch(() => getRandomUserAgent());
const proxy = await cacheWrapProxy('realdebrid', () => getRandomProxy()).catch(() => getRandomProxy());
return { proxy: proxy, headers: { 'User-Agent': userAgent } };
}
module.exports = { applyMoch, resolve };