Lookup CD by TOC
目前为
// ==UserScript==
// @name [GMT] CD DiscID Lookup
// @namespace https://greasyfork.org/users/321857-anakunda
// @version 1.00
// @description Lookup CD by TOC
// @match https://*/torrents.php?id=*
// @match https://*/torrents.php?page=*&id=*
// @run-at document-end
// @grant GM_xmlhttpRequest
// @grant GM_openInTab
// @connect musicbrainz.org
// @author Anakunda
// @iconURL https://musicbrainz.org/favicon.ico
// @license GPL-3.0-or-later
// @require https://cdnjs.cloudflare.com/ajax/libs/crypto-js/4.0.0/crypto-js.min.js
// @require https://openuserjs.org/src/libs/Anakunda/xhrLib.min.js
// ==/UserScript==
{
'use strict';
const requestsCache = new Map, mbRequestsCache = new Map;
const msf = 75, preGap = 2 * msf, dataTrackGap = 11400;
let mbLastRequest = null;
function getTorrentId(tr) {
if (!(tr instanceof HTMLElement)) throw 'Invalid argument';
if ((tr = tr.querySelector('a.button_pl')) != null && (tr = parseInt(new URLSearchParams(tr.search).get('torrentid'))) > 0)
return tr;
throw 'Failed to get torrent id';
}
function lookupByToc(torrentId, callback) {
if (!(torrentId > 0) || typeof callback != 'function') return Promise.reject('Invalid argument');
const msfTime = '(?:(\\d+):)?(\\d+):(\\d+)[\\.\\:](\\d+)';
const msfToSector = time => Array.isArray(time) || (time = new RegExp('^\\s*' + msfTime + '\\s*$').exec(time)) != null ?
(((time[1] ? parseInt(time[1]) : 0) * 60 + parseInt(time[2])) * 60 + parseInt(time[3])) * msf + parseInt(time[4]) : NaN;
// 1211 + 1287
const rxRR = /^(?:Selected range|Выбранный диапазон|Âûáðàííûé äèàïàçîí|已选择范围|選択された範囲|Gewählter Bereich|Intervallo selezionato|Geselecteerd bereik|Utvalt område|Seleccionar gama|Избран диапазон|Wybrany zakres|Izabrani opseg|Vybraný rozsah)(?:[^\S\r\n]+\((?:Sectors|Секторы|扇区|Sektoren|Settori|Sektorer|Sectores|Сектори|Sektora|Sektory)[^\S\r\n]+(\d+)[^\S\r\n]*-[^\S\r\n]*(\d+)\))?$/m;
const tocParser = '^\\s*' + ['\\d+', msfTime, msfTime, '\\d+', '\\d+']
.map(pattern => '(' + pattern + ')').join('\\s+\\|\\s+') + '\\s*$';
function tocEntriesMapper(tocEntry, trackNdx) {
if ((tocEntry = new RegExp(tocParser).exec(tocEntry)) == null)
throw `assertion failed: track ${trackNdx + 1} ToC entry invalid format`;
console.assert(msfToSector(tocEntry[2]) == parseInt(tocEntry[12]));
console.assert(msfToSector(tocEntry[7]) == parseInt(tocEntry[13]) + 1 - parseInt(tocEntry[12]));
return {
trackNumber: parseInt(tocEntry[1]),
startSector: parseInt(tocEntry[12]),
endSector: parseInt(tocEntry[13]),
};
};
return (function() {
if (requestsCache.has(torrentId)) return requestsCache.get(torrentId);
const request = localXHR('/torrents.php?' + new URLSearchParams({ action: 'loglist', torrentid: torrentId })).then(document =>
Array.from(document.body.querySelectorAll(':scope > blockquote > pre:first-child'), pre => pre.textContent).filter(function(logFile) {
logFile = logFile.trimLeft();
if (!['Exact Audio Copy', 'EAC', 'X Lossless Decoder'].some(prefix => logFile.startsWith(prefix))) return false;
const rr = rxRR.exec(logFile);
if (rr == null) return true;
// Ditch HTOA logs
let tocEntries = logFile.match(new RegExp(tocParser, 'gm'));
if (tocEntries != null) tocEntries = tocEntries.map(tocEntriesMapper); else return true;
return parseInt(rr[1]) != 0 || parseInt(rr[2]) + 1 != tocEntries[0].startSector;
}));
requestsCache.set(torrentId, request);
return request;
})().then(logfiles => logfiles.length > 0 ? Promise.all(logfiles.map(function(logfile, volumeNdx) {
const isRangeRip = rxRR.test(logfile);
let tocEntries = logfile.match(new RegExp(tocParser, 'gm'));
if (tocEntries != null && tocEntries.length > 0) tocEntries = tocEntries.map(tocEntriesMapper);
else throw `disc ${volumeNdx + 1} ToC not found`;
let layoutType = 0;
for (let index = 0; index < tocEntries.length - 1; ++index) {
const gap = tocEntries[index + 1].startSector - tocEntries[index].endSector - 1;
if (gap == 0) continue; else layoutType = gap == dataTrackGap && index == tocEntries.length - 2 ? 1 : -1;
if (layoutType == 1) tocEntries.pop();
break;
}
return callback(tocEntries);
}).map(results => results.catch(function(reason) {
console.log('DiscID lookup failed:', reason);
return null;
}))) : Promise.reject('no valid log files found'));
}
const torrents = Array.prototype.filter.call(document.body.querySelectorAll('table#torrent_details > tbody > tr.torrent_row'),
tr => (tr = tr.querySelector('td > a')) != null && /\b(?:FLAC)\b.+\b(?:Lossless)\b.+\b(?:Log) \(\-?\d+\s*\%\)/.test(tr.textContent));
for (let tr of torrents) {
function addLookup(caption, callback, tooltip) {
const a = document.createElement('A');
a.textContent = caption;
a.className = 'brackets';
a.href = '#';
a.dataset.torrentId = torrentId;
a.onclick = callback;
if (tooltip) a.title = tooltip;
tr.append(' ', a);
}
let torrentId = getTorrentId(tr);
if (!(torrentId > 0)) continue;
if ((tr = tr.nextElementSibling) == null || !tr.classList.contains('torrentdetails')) continue;
if ((tr = tr.querySelector('div.linkbox')) == null) continue;
addLookup('DiscID lookup', function(evt) {
const target = evt.currentTarget;
console.assert(target instanceof HTMLElement);
if (!target.disabled) if (Boolean(target.dataset.haveResponse)) {
if (!('results' in target.dataset)) return;
const results = JSON.parse(target.dataset.results);
for (let result of results.releases) GM_openInTab('https://musicbrainz.org/release/' + result.id, false);
//GM_openInTab('https://musicbrainz.org/cdtoc/attach?toc=' + results.mbTOC.join(' '), false);
//GM_openInTab('https://musicbrainz.org/cdtoc/' + results.mbDiscID, false);
} else {
function mbQueryAPI(endPoint, params) {
if (!endPoint) throw 'Endpoint is missing';
const url = new URL('/ws/2/' + endPoint.replace(/^\/+|\/+$/g, ''), 'https://musicbrainz.org');
url.search = new URLSearchParams(Object.assign({ fmt: 'json' }, params));
const cacheKey = url.pathname.slice(6) + url.search;
if (mbRequestsCache.has(cacheKey)) return mbRequestsCache.get(cacheKey);
const request = new Promise((resolve, reject) => { (function request(reqCounter = 1) {
if (reqCounter > 60) return reject('Request retry limit exceeded');
if (mbLastRequest == Infinity) return setTimeout(request, 100, reqCounter);
const now = Date.now();
if (now <= mbLastRequest + 1000) return setTimeout(request, mbLastRequest + 1000 - now, reqCounter);
mbLastRequest = Infinity;
globalXHR(url, { responseType: 'json' }).then(function({response}) {
mbLastRequest = Date.now();
resolve(response);
}, function(reason) {
mbLastRequest = Date.now();
if (/^HTTP error (?:429|430)\b/.test(reason)) return setTimeout(request, 1000, reqCounter + 1);
reject(reason);
});
})() });
mbRequestsCache.set(cacheKey, request);
return request;
}
function mbComputeDiscID(mbTOC) {
if (!Array.isArray(mbTOC) || mbTOC.length != mbTOC[1] - mbTOC[0] + 4 || mbTOC[1] - mbTOC[0] > 98) return null;
let tocStr = ([mbTOC[0], mbTOC[1]].map(track => track.toString(16).padStart(2, '0'))
.concat(mbTOC.slice(2).map(offset => offset.toString(16).padStart(8, '0'))).join('') +
'0'.repeat(98 + mbTOC[0] - mbTOC[1] << 3)).toUpperCase();
return CryptoJS.SHA1(tocStr).toString(CryptoJS.enc.Base64)
.replace(/\=/g, '-').replace(/\+/g, '.').replace(/\//g, '_');
}
function mbLookupByDiscID(mbTOC, allowTOCLookup = true) {
if (!Array.isArray(mbTOC) || mbTOC.length != mbTOC[1] - mbTOC[0] + 4)
return Promise.reject('mbLookupByDiscID(…): missing or invalid TOC');
const mbDiscID = mbComputeDiscID(mbTOC), params = { };
if (!mbDiscID || allowTOCLookup) params.toc = mbTOC.join('+');
//params['media-format'] = 'all';
return mbQueryAPI('discid/' + (mbDiscID || '-'), params).then(function(result) {
const releases = Array.isArray(result.releases) ? result.releases
: 'id' in result && 'title' in result ? [result] : null;
if (!Array.isArray(releases) || releases.length <= 0) return Promise.reject('MusicBrainz: no matches');
console.log('MusicBrainz lookup by discId/TOC successfull:', mbDiscID, '/', params, 'releases:', releases);
return { mbDiscID: mbDiscID, mbTOC: mbTOC, releases: releases };
});
}
target.disabled = true;
target.textContent = 'Looking up...';
lookupByToc(parseInt(target.dataset.torrentId), function(tocEntries) {
const isHTOA = tocEntries[0].startSector > preGap, mbTOC = [tocEntries[0].trackNumber, tocEntries.length];
mbTOC.push(preGap + tocEntries[tocEntries.length - 1].endSector + 1);
Array.prototype.push.apply(mbTOC, tocEntries.map(tocEntry => preGap + tocEntry.startSector));
return mbLookupByDiscID(mbTOC, false);
}).then(function(results) {
target.dataset.haveResponse = true;
if (results.length <= 0 || results[0] == null) {
target.textContent = 'No matches';
target.style.color = 'red';
} else {
target.textContent = results[0].releases.length + ' match(es)';
target.style.color = 'green';
//for (let result of results[0].releases) GM_openInTab('https://musicbrainz.org/release/' + result.id, true);
//GM_openInTab('https://musicbrainz.org/cdtoc/attach?toc=' + results[0].mbTOC.join(' '), true);
GM_openInTab('https://musicbrainz.org/cdtoc/' + results[0].mbDiscID, true);
target.dataset.results = JSON.stringify(results[0]);
}
}, function(reason) {
target.textContent = reason;
target.style.color = 'red';
}).then(() => { target.disabled = false });
}
return false;
}, 'Lookup release on MusicBrainz by DiscID/TOC');
// addLookup('FreeDB lookup', function(evt) {
// const target = evt.currentTarget;
// console.assert(target instanceof HTMLElement);
// if (!target.disabled) if (target.classList.contains('have-response')) {
// if (!('results' in target.dataset)) return;
// const results = JSON.parse(target.dataset.results);
// //for (let result of results.releases) GM_openInTab('https://', false);
// } else {
// function calculate_cddb_id(tocEntries) {
// function sum_of_digits(n) {
// let sum = 0;
// while (n > 0) {
// sum += n % 10;
// n = Math.floor(n / 10);
// }
// return sum;
// }
// function decimalToHexString(number) {
// if (number < 0) number = 0xFFFFFFFF + number + 1;
// return number.toString(16).toUpperCase();
// }
// let checksum = 0
// for (let entry of tocEntries) checksum += sum_of_digits(Math.floor((parseInt(entry.startSector) + preGap) / msf));
// checksum = checksum % 255;
// const length_seconds = Math.floor((tocEntries[tocEntries.length - 1].endSector + 1 - tocEntries[0].startSector) / msf);
// return decimalToHexString((checksum << 24) | (length_seconds << 8) | tocEntries.length);
// }
// target.disabled = true;
// target.textContent = 'Looking up...';
// lookupByToc(parseInt(target.dataset.torrentId), function(tocEntries) {
// const isHTOA = tocEntries[0].startSector > preGap;
// const cddbId = calculate_cddb_id(tocEntries);
// // search query here
// }).then(function(results) {
// target.classList.add('have-response');
// if (results.length <= 0 || results[0] == null) {
// target.textContent = 'No matches';
// target.style.color = 'red';
// } else {
// target.textContent = results[0].releases.length + ' match(es)';
// target.style.color = 'green';
// target.dataset.results = JSON.stringify(results[0]);
// }
// }, function(reason) {
// target.textContent = reason;
// target.style.color = 'red';
// }).then(() => { target.disabled = false });
// }
// return false;
// }, 'Lookup release on freeDb');
}
}