107 lines
2.9 KiB
JavaScript
107 lines
2.9 KiB
JavaScript
var fs = require('fs'),
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path = require('path'),
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readTorrent = require('read-torrent'),
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argv = require('minimist')(process.argv.slice(2));
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var torrentFiles = {};
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var torrentCsvHashes = new Set();
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var jsonFile = '../torrent_files.json';
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var torrentsCsvFile = '../torrents.csv';
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console.log(`Scanning torrent files from ${argv.dir} into ${jsonFile} ...`);
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main();
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async function main() {
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await fillTorrentFiles();
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await fillTorrentCsvHashes();
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await scanFolder();
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writeFile();
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}
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async function fillTorrentFiles() {
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if (fs.existsSync(jsonFile)) {
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var fileContents = await fs.promises.readFile(jsonFile, 'utf8');
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torrentFiles = JSON.parse(fileContents);
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}
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}
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async function fillTorrentCsvHashes() {
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var fileContents = await fs.promises.readFile(torrentsCsvFile, 'utf8');
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var lines = fileContents.split('\n');
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for (const line of lines) {
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var hash = line.split(';')[0];
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torrentCsvHashes.add(hash);
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}
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torrentCsvHashes.delete('infohash');
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}
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async function scanFolder() {
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console.log('Scanning dir: ' + argv.dir + '...');
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var fileHashes = new Set(Object.keys(torrentFiles));
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var files = fs.readdirSync(argv.dir).filter(f => {
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var sp = f.split('.');
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var ext = sp[1];
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var hash = sp[0];
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var fullPath = argv.dir + '/' + f;
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// It must be a torrent file,
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// NOT in the torrent_files.json
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// must be in the CSV file
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// must have a file size
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return (ext == 'torrent' &&
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!fileHashes.has(hash) &&
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torrentCsvHashes.has(hash) &&
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getFilesizeInBytes(fullPath) > 0);
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});
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for (const file of files) {
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var fullPath = argv.dir + '/' + file;
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console.log(`Scanning File ${fullPath}`);
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var torrent = await read(fullPath).catch(e => console.log('Read error'));
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torrentFiles = { ...torrentFiles, ...torrent }; // concat them
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};
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console.log('Done scanning.');
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}
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function getFilesizeInBytes(filename) {
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var stats = fs.statSync(filename);
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var fileSizeInBytes = stats["size"];
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return fileSizeInBytes;
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}
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function writeFile() {
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torrentFiles = Object.keys(torrentFiles)
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.sort()
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.filter(hash => torrentCsvHashes.has(hash))
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.reduce((r, k) => (r[k] = torrentFiles[k], r), {});
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fs.writeFileSync(jsonFile, JSON.stringify(torrentFiles, null, 2));
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console.log(`${jsonFile} written.`);
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process.exit();
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}
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function read(uri, options) {
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return new Promise((resolve, reject) => {
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readTorrent(uri, (err, info) => {
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if (!err) {
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// Removing some extra fields from files
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if (info.files) {
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info.files.forEach((f, i) => {
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f.i = i;
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f.p = f.path;
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f.l = f.length;
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delete f.name;
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delete f.offset;
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delete f.path;
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delete f.length;
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});
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}
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resolve({ [info.infoHash]: info.files });
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} else {
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console.error('Error in read-torrent: ' + err.message + ' for torrent uri: ' + uri);
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reject(err);
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}
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});
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});
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}
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