mirror of
https://github.com/murdos/musicbrainz-userscripts
synced 2024-12-13 11:52:27 +00:00
377 lines
15 KiB
JavaScript
377 lines
15 KiB
JavaScript
// ==UserScript==
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// @name Musicbrainz DiscIds Detector
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// @namespace http://userscripts.org/users/22504
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// @version 2017.02.22.0
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// @description Generate MusicBrainz DiscIds from online EAC logs, and check existence in MusicBrainz database.
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// @downloadURL https://raw.githubusercontent.com/murdos/musicbrainz-userscripts/master/mb_discids_detector.user.js
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// @updateURL https://raw.githubusercontent.com/murdos/musicbrainz-userscripts/master/mb_discids_detector.user.js
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// @include http://avaxhome.ws/music/*
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// @include https://apollo.rip/torrents.php?id=*
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// @include https://passtheheadphones.me/torrents.php?id=*
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// @include https://redacted.ch/torrents.php?id=*
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// @include http*://lztr.us/torrents.php?id=*
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// @include http*://lztr.me/torrents.php?id=*
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// @include http*://mutracker.org/torrents.php?id=*
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// @require http://ajax.googleapis.com/ajax/libs/jquery/2.1.4/jquery.js
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// @require http://pajhome.org.uk/crypt/md5/sha1.js
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// @require lib/logger.js
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// ==/UserScript==
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// prevent JQuery conflicts, see http://wiki.greasespot.net/@grant
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this.$ = this.jQuery = jQuery.noConflict(true);
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LOGGER.setLevel('info');
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var CHECK_IMAGE = "data:image/png;base64,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%3D";
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$(document).ready(function () {
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if (window.location.host.match(/apollo\.rip|redacted\.ch|passtheheadphones\.me|lztr\.(us|me)|mutracker\.org/)) {
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LOGGER.info("Gazelle site detected");
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gazellePageHandler();
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} else if (window.location.host.match(/avaxhome\.ws/)) {
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avaxHomePageHandler();
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}
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});
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function avaxHomePageHandler() {
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// Find artist and release titles
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var artistName = "";
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var releaseName = "";
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var m = $('div.title h1').text().match(/(.*) (?:-|–) (.*)( \(\d{4}\))?/);
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if (m) {
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artistName = m[1];
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releaseName = m[2];
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}
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if (artistName == "VA") artistName = "Various Artists";
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// Find and analyze EAC log
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$('div.spoiler').filter(function () {
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return $(this).find('a').text().match(/(EAC|log)/i);
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})
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.find('div')
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.each(function () {
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var $eacLog = $(this);
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var discs = analyze_log_files($eacLog);
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// Check and display
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check_and_display_discs(artistName, releaseName, discs,
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function (mb_toc_numbers, discid, discNumber) {
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$eacLog.parents('div.spoiler').prevAll('div.center:first').append('<br /><strong>' + (discs.length > 1 ? 'Disc ' + discNumber + ': ' : '' ) + 'MB DiscId </strong><span id="' + discid + '" />');
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},
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function (mb_toc_numbers, discid, discNumber, found) {
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var url = computeAttachURL(mb_toc_numbers, artistName, releaseName);
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var html = '<a href="' + url + '">' + discid + '</a>';
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if (found) {
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html = html + '<img src="' + CHECK_IMAGE + '" />';
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}
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$('#' + discid.replace('.', '\\.')).html(html);
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}
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);
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});
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}
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function gazellePageHandler() {
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var serverHost = window.location.host;
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// Determine Artist name and Release title
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var titleAndArtists = $("#content div.thin h2:eq(0)").text();
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var pattern = /(.*) - (.*) \[.*\] \[.*/;
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var artistName, releaseName;
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if (m = titleAndArtists.match(pattern)) {
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artistName = m[1];
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releaseName = m[2];
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}
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LOGGER.debug("artist:", artistName, "- releaseName:", releaseName);
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// Parse each torrent
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$('tr.group_torrent').filter(function () {
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return $(this).attr("id");
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}).each(function () {
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var torrentInfo = $(this).next();
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$(torrentInfo).find('a')
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// Only investigate the ones with a log
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.filter(function (index) {
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return $(this).text().match(/View Log/i);
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})
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.each(function () {
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LOGGER.debug("Log link", this);
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if ($(this).attr("onclick").match(/show_logs/)) {
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if (window.location.host.match(/apollo/)) {
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LOGGER.debug("Apollo");
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var logAction = 'viewlog';
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} else if (window.location.host.match(/redacted|passtheheadphones/)){
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LOGGER.debug("RED");
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var logAction = 'loglist';
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}
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}
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// LzTR
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else if ($(this).attr("onclick").match(/get_log/)) {
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LOGGER.debug("LzTR");
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var logAction = 'log_ajax';
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} else {
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return true;
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}
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var targetContainer = $(this).parents(".linkbox");
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var torrentId = /(show_logs|get_log)\('(\d+)/.exec($(this).attr('onclick'))[2];
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var logUrl = '/torrents.php?action=' + logAction + '&torrentid=' + torrentId;
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LOGGER.info("Log URL: ", logUrl);
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LOGGER.debug("targetContainer: ", targetContainer);
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// Get log content
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$.get(logUrl,
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function (data) {
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LOGGER.debug("Log content", $(data).find('pre'));
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var discs = analyze_log_files($(data).find('pre'));
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LOGGER.debug("Number of disc found", discs.length);
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check_and_display_discs(artistName, releaseName, discs,
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function (mb_toc_numbers, discid, discNumber) {
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targetContainer.append('<br /><strong>' + (discs.length > 1 ? 'Disc ' + discNumber + ': ' : '' ) + 'MB DiscId: </strong><span id="' + torrentId + '_disc' + discNumber + '" />');
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},
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function (mb_toc_numbers, discid, discNumber, found) {
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var url = computeAttachURL(mb_toc_numbers, artistName, releaseName);
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var html = '<a href="' + url + '">' + discid + '</a>';
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if (found) {
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html = html + '<img src="' + CHECK_IMAGE + '" />';
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}
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LOGGER.debug('#' + torrentId + '_disc' + discNumber);
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$('#' + torrentId + '_disc' + discNumber).html(html);
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}
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);
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}
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);
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}
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);
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});
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}
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// Common functions
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function computeAttachURL(mb_toc_numbers, artistName, releaseName) {
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var url = 'http://musicbrainz.org/cdtoc/attach'
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+ '?toc=' + mb_toc_numbers.join("%20")
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+ '&artist-name=' + encodeURIComponent(artistName)
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+ '&release-name=' + encodeURIComponent(releaseName);
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return url;
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}
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function analyze_log_files(log_files) {
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var discs = [];
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$.each(log_files, function (i, log_file) {
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var discsInLog = MBDiscid.log_input_to_entries($(log_file).text());
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for (var i = 0; i < discsInLog.length; i++) {
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discs.push(discsInLog[i]);
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}
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});
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// Remove dupes discs
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var keys = new Object();
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var uniqueDiscs = new Array();
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for (var i = 0; i < discs.length; i++) {
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var discid = MBDiscid.calculate_mb_discid(discs[i]);
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if (discid in keys) {
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continue;
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} else {
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keys[discid] = 1;
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uniqueDiscs.push(discs[i]);
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}
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}
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discs = uniqueDiscs;
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return discs;
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}
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function check_and_display_discs(artistName, releaseName, discs, displayDiscHandler, displayResultHandler) {
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// For each disc, check if it's in MusicBrainz database
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for (var i = 0; i < discs.length; i++) {
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var entries = discs[i];
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var discNumber = i + 1;
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if (entries.length > 0) {
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var mb_toc_numbers = MBDiscid.calculate_mb_toc_numbers(entries);
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var discid = MBDiscid.calculate_mb_discid(entries);
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LOGGER.info("Computed discid :" + discid);
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displayDiscHandler(mb_toc_numbers, discid, discNumber);
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// Now check if this discid is known by MusicBrainz
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(function (discid, discNumber, mb_toc_numbers) {
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var query = $.getJSON('//musicbrainz.org/ws/2/discid/' + discid + '?cdstubs=no');
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query.done(function (data) {
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var existsInMusicbrainz = !('error' in data) && data.error != "Not found";
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displayResultHandler(mb_toc_numbers, discid, discNumber, existsInMusicbrainz);
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});
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query.fail(function () {
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// If discid is not found, the webservice returns a 404 http code
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displayResultHandler(mb_toc_numbers, discid, discNumber, false);
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});
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})(discid, discNumber, mb_toc_numbers);
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}
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}
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}
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/* -------------------------------------------- */
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// MBDiscid code comes from https://gist.github.com/kolen/766668
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// Copyright 2010, kolen
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// Released under the MIT License
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var MBDiscid = (function () {
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this.SECTORS_PER_SECOND = 75;
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this.PREGAP = 150;
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this.DATA_TRACK_GAP = 11400;
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this.toc_entry_matcher = new RegExp(
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"^\\s*" +
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"(\\d+)" + // 1 - track number
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"\\s*\\|\\s*" +
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"([0-9:.]+)" + // 2 - time start
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"\\s*\\|\\s*" +
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"([0-9:.]+)" + // 3 - time length
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"\\s*\\|\\s*" +
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"(\\d+)" + // 4 - start sector
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"\\s*\\|\\s*" +
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"(\\d+)" + // 5 - end sector
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"\\s*$"
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);
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this.log_input_to_entries = function (text) {
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var discs = [];
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var entries = [];
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$.each(text.split("\n"), function (index, value) {
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var m = toc_entry_matcher.exec(value);
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if (m) {
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// New disc
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if (parseInt(m[1], 10) == 1) {
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if (entries.length > 0) {
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discs.push(entries);
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}
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entries = [];
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}
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entries.push(m);
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}
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});
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if (entries.length > 0) {
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discs.push(entries);
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}
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for (var i = 0; i < discs.length; i++) {
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var entries = discs[i];
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var layout_type = get_layout_type(entries);
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var entries_audio;
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if (layout_type == "with_data") {
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entries_audio = entries.slice(0, entries.length - 1);
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} else {
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entries_audio = entries;
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}
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discs[i] = entries_audio;
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}
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return discs;
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};
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this.get_layout_type = function (entries) {
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var type = "standard";
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for (var i = 0; i < entries.length - 1; i++) {
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var gap = parseInt(entries[i + 1][4], 10) - parseInt(entries[i][5], 10) - 1;
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if (gap != 0) {
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if (i == entries.length - 2 && gap == DATA_TRACK_GAP) {
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type = "with_data";
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} else {
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type = "unknown";
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break;
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}
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}
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}
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return type;
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};
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this.calculate_mb_toc_numbers = function (entries) {
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if (entries.length == 0) {
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return null;
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}
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var leadout_offset = parseInt(entries[entries.length - 1][5], 10) + PREGAP + 1;
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var offsets = $.map(entries, function (entry) {
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return parseInt(entry[4], 10) + PREGAP;
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})
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return [1, entries.length, leadout_offset].concat(offsets);
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};
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this.calculate_cddb_id = function (entries) {
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var sum_of_digits = function (n) {
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var sum = 0;
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while (n > 0) {
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sum = sum + (n % 10);
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n = Math.floor(n / 10);
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}
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return sum;
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}
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var decimalToHexString = function (number) {
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if (number < 0) {
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number = 0xFFFFFFFF + number + 1;
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}
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return number.toString(16).toUpperCase();
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}
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var length_seconds = Math.floor((parseInt(entries[entries.length - 1][5], 10) - parseInt(entries[0][4], 10) + 1) / SECTORS_PER_SECOND);
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var checksum = 0;
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$.each(entries, function (index, entry) {
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checksum += sum_of_digits(Math.floor((parseInt(entry[4], 10) + PREGAP) / SECTORS_PER_SECOND));
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})
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var xx = checksum % 255;
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var discid_num = (xx << 24) | (length_seconds << 8) | entries.length;
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//return discid_num
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return decimalToHexString(discid_num);
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};
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this.calculate_mb_discid = function (entries) {
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var hex_left_pad = function (input, totalChars) {
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input = '' + parseInt(input, 10).toString(16).toUpperCase();
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var padWith = "0";
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if (input.length < totalChars) {
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while (input.length < totalChars) {
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input = padWith + input;
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}
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} else {
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}
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if (input.length > totalChars) { //if padWith was a multiple character string and num was overpadded
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input = input.substring((input.length - totalChars), totalChars);
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} else {
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}
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return input;
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};
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var mb_toc_numbers = calculate_mb_toc_numbers(entries);
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var message = "";
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var first_track = mb_toc_numbers[0];
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var last_track = mb_toc_numbers[1];
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var leadout_offset = mb_toc_numbers[2];
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message = message + hex_left_pad(first_track, 2);
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message = message + hex_left_pad(last_track, 2);
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message = message + hex_left_pad(leadout_offset, 8);
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for (var i = 0; i < 99; i++) {
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var offset = (i + 3 < mb_toc_numbers.length) ? mb_toc_numbers[i + 3] : 0;
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message = message + hex_left_pad(offset, 8);
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}
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b64pad = "=";
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var discid = b64_sha1(message);
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discid = discid.replace(/\+/g, ".").replace(/\//g, "_").replace(/=/g, "-");
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return discid;
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};
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return this;
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})();
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