Files
knightcrawler/scraper/scrapers/rarbg/rarbg_scraper.js
2020-03-14 22:25:51 +01:00

104 lines
3.3 KiB
JavaScript

const moment = require('moment');
const Bottleneck = require('bottleneck');
const rarbg = require('rarbg-api');
const decode = require('magnet-uri');
const { Type } = require('../../lib/types');
const repository = require('../../lib/repository');
const Promises = require('../../lib/promises');
const { createTorrentEntry, getStoredTorrentEntry, updateTorrentSeeders } = require('../../lib/torrentEntries');
const NAME = 'RARBG';
const limiter = new Bottleneck({ maxConcurrent: 1, minTime: 2500 });
const entryLimiter = new Bottleneck({ maxConcurrent: 40 });
async function scrape() {
const scrapeStart = moment();
const lastScrape = await repository.getProvider({ name: NAME });
console.log(`[${scrapeStart}] starting ${NAME} scrape...`);
return scrapeLatestTorrents()
.then(() => {
lastScrape.lastScraped = scrapeStart;
return lastScrape.save();
})
.then(() => console.log(`[${moment()}] finished ${NAME} scrape`));
}
async function scrapeLatestTorrents() {
const allowedCategories = [
rarbg.CATEGORY['4K_MOVIES_X264_4k'],
rarbg.CATEGORY['4K_X265_4k'],
rarbg.CATEGORY['4k_X264_4k_HDR'],
rarbg.CATEGORY.MOVIES_XVID,
rarbg.CATEGORY.MOVIES_XVID_720P,
rarbg.CATEGORY.MOVIES_X264,
rarbg.CATEGORY.MOVIES_X264_1080P,
rarbg.CATEGORY.MOVIES_X264_720P,
rarbg.CATEGORY.MOVIES_X264_3D,
rarbg.CATEGORY.MOVIES_FULL_BD,
rarbg.CATEGORY.MOVIES_BD_REMUX,
rarbg.CATEGORY.TV_EPISODES,
rarbg.CATEGORY.TV_UHD_EPISODES,
rarbg.CATEGORY.TV_HD_EPISODES
];
return Promises.sequence(allowedCategories
.map(category => () => limiter.schedule(() => scrapeLatestTorrentsForCategory(category))))
.then(entries => entries.reduce((a, b) => a.concat(b), []));
}
async function scrapeLatestTorrentsForCategory(category) {
console.log(`Scrapping ${NAME} ${category} category`);
return rarbg.list({ category: category, limit: 100, sort: 'last', format: 'json_extended', ranked: 0 })
.then(torrents => torrents.map(torrent => ({
name: torrent.title,
infoHash: decode(torrent.download).infoHash,
magnetLink: torrent.download,
seeders: torrent.seeders,
leechers: torrent.leechers,
category: torrent.category,
size: torrent.size,
uploadDate: new Date(torrent.pubdate),
imdbId: torrent.episode_info && torrent.episode_info.imdb
})))
.then(torrents => Promise.all(torrents.map(t => entryLimiter.schedule(() => processTorrentRecord(t)))))
.catch(error => {
console.warn(`Failed ${NAME} scrapping for ${category} due: `, error);
return Promise.resolve([]);
});
}
async function processTorrentRecord(record) {
if (await getStoredTorrentEntry(record)) {
return updateTorrentSeeders(record);
}
const torrent = {
provider: NAME,
infoHash: record.infoHash,
title: record.name,
type: getType(record.category),
seeders: record.seeders,
size: record.size,
uploadDate: record.uploadDate,
imdbId: record.imdbId
};
return createTorrentEntry(torrent);
}
const seriesCategories = [
'TV Episodes',
'Movies/TV-UHD-episodes',
'TV HD Episodes',
];
function getType(category) {
if (seriesCategories.includes(category)) {
return Type.SERIES;
}
return Type.MOVIE;
}
module.exports = { scrape, NAME };