Image Host Helper

Directly upload local / rehost remote images or galleries to whatever supported image host by dropping/pasting them to target field

اعتبارا من 11-11-2020. شاهد أحدث إصدار.

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

ستحتاج إلى تثبيت إضافة مثل Stylus لتثبيت هذا النمط.

ستحتاج إلى تثبيت إضافة لإدارة أنماط المستخدم لتتمكن من تثبيت هذا النمط.

ستحتاج إلى تثبيت إضافة لإدارة أنماط المستخدم لتثبيت هذا النمط.

ستحتاج إلى تثبيت إضافة لإدارة أنماط المستخدم لتثبيت هذا النمط.

(لدي بالفعل مثبت أنماط للمستخدم، دعني أقم بتثبيته!)

// ==UserScript==
// @name         Image Host Helper
// @namespace    https://greatest.deepsurf.us/users/321857-anakunda
// @version      1.085
// @description  Directly upload local / rehost remote images or galleries to whatever supported image host by dropping/pasting them to target field
// @icon         data:image/png;base64,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
// @author       Anakunda
// @copyright    2020, Anakunda (https://greatest.deepsurf.us/cs/users/321857-anakunda)
// @license      GPL-3.0-or-later
// @match        https://passthepopcorn.me/*
// @match        https://redacted.ch/*
// @match        https://orpheus.network/*
// @match        https://broadcasthe.net/*
// @match        https://notwhat.cd/*
// @match        https://dicmusic.club/*
// @match        https://*/torrents.php?id=*
// @match        https://*/artist.php?id=*
// @match        https://*/artist.php?action=edit&artistid=*
// @match        https://*/reportsv2.php?action=report&id=*
// @match        https://*/forums.php?action=new*
// @match        https://*/forums.php?*action=viewthread*
// @match        https://*/requests.php?action=view*
// @match        https://*/collages.php?id=*
// @match        https://*/collages.php?action=edit&collageid=*
// @match        https://*/collages.php?action=comments&collageid=*
// @match        https://*/collages.php?action=new
// @match        http*://tracker.czech-server.com/*
// @connect      *
// @grant        GM_xmlhttpRequest
// @grant        GM_getValue
// @grant        GM_setValue
// @grant        GM_deleteValue
// @require      https://greatest.deepsurf.us/scripts/408084-xhrlib/code/xhrLib.js
// @require      https://greatest.deepsurf.us/scripts/404516-progressbars/code/progressBars.js
// @require      https://greatest.deepsurf.us/scripts/401726-imagehostuploader/code/imageHostUploader.js
// ==/UserScript==

'use strict';

if (document.getElementById('upload assistant') != null) return; // don't clash with Upload Assistant

const itunesRlsParser = /^(?:https?):\/\/(?:\w+\.)*apple\.com\/.*\/(\d+)(?=$|\?)/i;
const itunesImageMax = [/\/(\d+x\d+)\w*(?=\.\w+$)/, '/100000x100000-999'];
const dzrRlsParser = /^(?:https?):\/\/(?:\w+\.)*deezer\.com\/(\w+\/)*album\/(\d+)\b/i;
const dzImageMax = [/\/(\d+x\d+)(?:\-\d+)*(?=\.\w+$)/, '/1400x1400-000000-100-0-0'];
const discogsKey = 'LWiNvIWBobGMRhfSCAiC';
const discogsSecret = 'HAQUKFmebpCSLyRNwjmSgOMgbnxsVQcp';
const lfmApiKey = '920db0d2f86108f2fbe1917b53d63858';

Array.prototype.flatten = function() {
  return this.reduce(function(flat, toFlatten) {
	return flat.concat(Array.isArray(toFlatten) ? toFlatten.flatten() : toFlatten);
  }, []);
};

var cheveretoCustomHosts = GM_getValue('chevereto_custom_hosts');
if (cheveretoCustomHosts !== undefined) try {
  JSON.parse(cheveretoCustomHosts).forEach(function(siteDef) {
	if (!siteDef.host_name || !siteDef.alias) {
	  console.warn('Incomplete Chevereto custom site definition:', siteDef);
	  return;
	}
	imageHostHandlers[siteDef.alias.replace(nonWordStripper, '').toLowerCase()] = new Chevereto(
	  siteDef.host_name,
	  siteDef.alias,
	  siteDef.types,
	  siteDef.size_limit, {
		sizeLimitAnonymous: siteDef.size_limit_anonymous,
		configPrefix: siteDef.config_prefix,
		apiEndpoint: siteDef.api_endpoint,
		apiFieldName: siteDef.api_field_name,
		apiResultKey: siteDef.api_result_key,
		jsonEndpoint: siteDef.json_endpoint,
	});
  });
} catch (e) { console.warn(e) } else GM_setValue('chevereto_custom_hosts', '[]');
console.log('Image host handlers:', imageHostHandlers);

['upload_hosts', 'rehost_hosts'].forEach(propName => { if (!GM_getValue(propName)) GM_setValue(propName, [
  'PTPimg', 'ImgBB', 'PixHost', 'ImgBox', 'Jerking', 'Abload', 'VgyMe', 'Slowpoke', 'FunkyIMG',
  'Gifyu', 'PostImage', 'GeekPic', 'LightShot', 'ImgURL', 'Radikal', 'Z4A', 'PicaBox', 'PimpAndHost',
  'CasImages', 'Imgur', 'ImageBan', 'UuploadIr', 'Catbox', 'ImageVenue', 'GetaPic', 'FastPic', 'SVGshare',
].join(', ')) });
[
  ['passthepopcorn.me', [
	'PTPimg', 'PixHost', 'ImgBB', 'Jerking', 'Gifyu', 'Slowpoke', 'ImgBox', 'Abload', 'VgyMe', 'FunkyIMG', 'GeekPic',
	'LightShot', 'ImgURL', 'Radikal', 'Z4A', 'PicaBox', 'PimpAndHost', 'ImageBan', 'UuploadIr', 'Catbox', 'ImageVenue',
	'GetaPic',
  ]],
  ['notwhat.cd', ['NWCD']],
].forEach(hostDefaults => { if (!GM_getValue(hostDefaults[0])) GM_setValue(hostDefaults[0], hostDefaults[1].join(', ')) });

var imageHosts = new ImageHostManager(logFail,
  GM_getValue(document.domain) || GM_getValue('upload_hosts'),
  GM_getValue(document.domain) || GM_getValue('rehost_hosts'));

imageHostUploaderInit(inputDataHandler, textAreaDropHandler, textAreaPasteHandler, imageUrlResolver);

// Set single input UI handlers
document.querySelectorAll([
  'image', 'picture', 'cover', 'photo', 'avatar', 'poster', 'screen',
].map(pattern => ['id', 'name'].map(attr => 'input[type="text"][' + attr + '*="' + pattern + '"]')).join(','))
  .forEach(setInputHandlers);
if (document.URL.includes('/torrents.php?id=')) {
  let a = document.querySelector('span.additional_add_artists > a');
  if (a != null) a.addEventListener('click', function() {
	document.querySelectorAll('input[name="image[]"]').forEach(setInputHandlers);
  });
}
// Set multiple inputs UI handlers
for (let textArea of document.getElementsByTagName('textarea')) {
  if (textArea.className != 'ua-input') setTextAreahandlers(textArea);
}

// site-specific extensions
switch (document.domain) {
  case 'passthepopcorn.me':
	// Auto-fill missing/invalid images from IMDB
	if (/\/artist\.php\?action=edit&artistid=(\d+)\b/i.test(document.URL)) {
	  let artistId = parseInt(RegExp.$1), input = document.querySelector('input[name="image"]');
	  if (input != null) verifyImageUrl(input.value).catch(() => localXHR('/artist.php?id=' + artistId).then(function(dom) {
		let imdb = dom.querySelector('div#artistinfo > div.panel__body > ul.list > li > a');
		if (imdb != null) imageUrlResolver(imdb.href).then(setCover.bind(input), reason => { logFail('No IMDB photo of this artist') });
	  }));
	} else if (/\/torrents\.php??action=editgroup&groupid=(\d+)\b/i.test(document.URL)) {
	  let groupId = parseInt(RegExp.$1), input = document.querySelector('input[name="image"]');
	  if (input != null) verifyImageUrl(input.value).catch(() => localXHR('/torrents.php?id=' + groupId).then(function(dom) {
		let imdb = dom.querySelector('a#imdb-title-link');
		if (imdb != null) imageUrlResolver(imdb.href).then(setCover.bind(input), reason => { logFail('No IMDB poster for this movie') });
	  }));
	}
	// HJ Toolkit patch
	setTimeout(function() {
	  if (document.querySelector('div.HJ-toolkit-badge') != null) {
		let hjtkTimer = setInterval(function() {
		  document.querySelectorAll('textarea[id^="HJMA"], textarea.form-control[name="screen"], textarea.form-control[name="comp"]')
			.forEach(setTextAreahandlers);
		}, 1000);
	  }
	}, 1000);
	break;
  case 'tracker.czech-server.com':
	document.querySelectorAll('input[name="urlobr"]').forEach(setInputHandlers);
	break;
  case 'redacted.ch':
  case 'orpheus.network':
  case 'notwhat.cd':
  case 'dicmusic.club':
	// Auto-fill missing/invalid artist images
	if (document.URL.includes('/artist.php?action=edit&')) {
	  let artist = document.querySelector('div.header > h2 > a'), input = document.querySelector('input[name="image"]');
	  if (artist != null && input != null) verifyImageUrl(input.value).catch(function() {
		artist = artist.textContent.trim();
		let lookupWorkers = [
		  // Discogs
		  globalXHR('https://api.discogs.com/database/search?' + new URLSearchParams({
			query: artist,
			type: 'artist',
			sort: 'score,desc',
			strict: false,
		  }).toString(), {
			responseType: 'json',
			headers: { 'Authorization': 'Discogs key="' + discogsKey + '", secret="' + discogsSecret + '"' },
		  }).then(response => {
			if (response.response.items <= 0) return Promise.reject('Discogs: no matches');
			const artistIndexStripper = [/\s*\(\d+\)$/, ''];
			let f, results = response.response.results.filter(result => result.type == 'artist');
			if (results.length > 1) {
			  f = results.filter(result =>
				result.title.replace(...artistIndexStripper).toASCII().toLowerCase() == artist.toASCII().toLowerCase());
			  if (f.length > 0) results = f;
			}
			if (results.length > 1) {
			  f = results.filter(result =>
				result.title.replace(...artistIndexStripper).toLowerCase() == artist.toLowerCase());
			  if (f.length > 0) results = f;
			}
			if (results.length > 1) console.info('Discogs returns ambiguous results for "' + artist + '":', results);
			if (results.length <= 0) return Promise.reject('Discogs: no matches');
			//console.debug('Discogs search results for "' + artist + '":', results);
			let artistCovers = results.map(result => {
			  if (result.cover_image.includes('/spacer.gif')) return null;
			  if (/^(?:https?):\/\/(?:img\.discogs\.com)\/.+\/(\S+?\.\w+)\b/i.test(result.cover_image))
				return 'https://www.discogs.com/image/' + RegExp.$1;
			  return result.cover_image;
			});
			return urlParser.test(artistCovers[0]) ? artistCovers[0] : Promise.reject('Discogs: no photo');
		  }),
		  // iTunes
		  globalXHR('https://itunes.apple.com/search?' + new URLSearchParams({
			term: '"' + artist + '"',
			media: 'music',
			entity: 'musicArtist',
			attribute: 'artistTerm',
			//country: 'US',
		  }).toString(), { responseType: 'json' }).then(function(response) {
			if (response.response.resultCount <= 0) return Promise.reject('Apple Music: no matches');
			let f, results = response.response.results
				.filter(result => result.wrapperType == 'artist' && result.artistType == 'Artist');
			if (results.length > 1) {
			  f = results.filter(result => result.artistName.toASCII().toLowerCase() == artist.toASCII().toLowerCase());
			  if (f.length > 0) results = f;
			}
			if (results.length > 1) {
			  f = results.filter(result => result.artistName.toLowerCase() == artist.toLowerCase());
			  if (f.length > 0) results = f;
			}
			if (results.length > 1) console.info('Apple Music returns ambiguous results for "' + artist + '":', results);
			if (results.length <= 0) return Promise.reject('Apple Music: no matches');
			//console.debug('Apple Music search results for "' + artist + '":', results);
			return imageUrlResolver(results[0].artistLinkUrl);
		  }),
		  // Deezer
		  globalXHR('https://api.deezer.com/search/artist?' + new URLSearchParams({
			q: '"' + artist + '"',
		  }).toString(), { responseType: 'json' }).then(function(response) {
			if (response.response.total <= 0) return Promise.reject('Deezer: no matches');
			let f, results = response.response.data.filter(result => result.type == 'artist');
			if (results.length > 1) {
			  f = results.filter(result => result.name.toASCII().toLowerCase() == artist.toASCII().toLowerCase());
			  if (f.length > 0) results = f;
			}
			if (results.length > 1) {
			  f = results.filter(result => result.name.toLowerCase() == artist.toLowerCase());
			  if (f.length > 0) results = f;
			}
			if (results.length > 1) console.info('Deezer returns ambiguous results for "' + artist + '":', results);
			if (results.length <= 0) return Promise.reject('Deezer: no matches');
			//console.debug('Deezer search results for "' + artist + '":', results);
			return globalXHR(results[0].picture, {
			  method: 'HEAD',
			}).then(response => verifyImageUrl(response.finalUrl)).catch(function(reason) {
			  console.warn('Deezer API image retrieval failed:', reason);
			  return response.response.data[0].picture_xl || response.response.data[0].picture_big
				  || response.response.data[0].picture_medium || response.response.data[0].picture_small;
			}).then(function(imageUrl) {
			  if (!urlParser.test(imageUrl) || imageUrl.includes('/images/artist//'))
				return Promise.reject('Deezer: no valid photo of this artist');
			  return imageUrl.replace(...dzImageMax);
			});
		  }),
		  // Last.fm
		  globalXHR('http://ws.audioscrobbler.com/2.0/?' + new URLSearchParams({
			method: 'artist.getinfo',
			artist: artist,
			format: 'json',
			api_key: lfmApiKey,
		  }).toString(), { responseType: 'json' }).then(function(response) {
			if (response.response.error) return Promise.reject(response.response.message);
			//console.debug('Last.fm search result for "' + artist + '":', response.response.artist);
			const rx = /\/(\d+)x(\d+)\//;
			let biggest = response.response.artist.image.map(im => im['#text']).reduce(function(a, b) {
			  let r = [a, b].map(RegExp.prototype.exec.bind(rx))
			  	.map(r => r != null ? parseInt(r[1]) * parseInt(r[2]) : -Infinity);
			  return r[1] > r[0] ? b : a;
			});
			return rx.test(biggest) ? biggest : Promise.reject('Last.fm: artist found but image missing');
		  }),
		];
		const lookUp = (index = 0) => index < lookupWorkers.length ?
			lookupWorkers[index].then(setCover.bind(input)).catch(reason => lookUp(index + 1))
				: Promise.reject('No photos of this artist found');
		lookUp().catch(logFail);
	  });
	}
	break;
}

if (document.URL.includes('/reportsv2.php')) {
  setReportHandlers();
  var reportTypeSelect = document.querySelector('select#type');
  if (reportTypeSelect != null) reportTypeSelect.addEventListener('change', setReportHandlers);

  function setReportHandlers(evt) {
	setTimeout(function() {
	  document.querySelectorAll('input[id*="image"]').forEach(setInputHandlers);
	  document.querySelectorAll('textarea').forEach(setTextAreahandlers);
	}, 2000);
  }
}

// Old versions adjustment
['image_size_warning', 'image_size_reduce_threshold'].forEach(itemProp => {
  var val = GM_getValue('itemProp');
  if (val < 8) GM_setValue('itemProp', val * 2**10);
});
var opti_PNG = GM_getValue('optipng', false);

function coverPreview(imgUrl, size) {
  let div = document.getElementById('image-preview');
  if (div != null) document.body.removeChild(div);
  if (!urlParser.test(imgUrl)) return;
  div = document.createElement('div');
  div.id = 'image-preview';
  div.style = 'position: absolute; bottom: 20px; right: 20px; border: thin solid silver; ' +
	'background-color: #8888; padding: 10px; opacity: 0; transition: opacity 1s ease-in-out;';
  const cleanUp = () => {
	if (div.parentNode == null) return;
	div.style.opacity = 0;
	setTimeout(() => { document.body.removeChild(div) }, 1000);
  };
  div.ondblclick = cleanUp;
  let img = document.createElement('img');
  img.style = 'width: 225px;';
  img.onload = function(evt) {
	document.body.append(div);
	setTimeout(() => { div.style.opacity = 1 }, 1);
	setTimeout(cleanUp, 12000);
	if (!img.naturalWidth || !img.naturalHeight) return; // invalid image
	let info = document.createElement('div');
	info.id = 'image-info';
	info.style = 'text-align: center; background-color: #29434b; padding: 5px; color: white;' +
	  'font: 500 10pt "Segoe UI", Verdana, sans-serif;';
	div.append(info);
	(size > 0 ? Promise.resolve(size) : getRemoteFileSize(imgUrl)).then(function(size) {
	  if (!(size > 0)) throw 'invalid size';
	  let imageSizeLimit = GM_getValue('image_size_reduce_threshold');
	  let html = img.naturalWidth + '×' + img.naturalHeight + ' (<span id="image-size"';
	  if (imageSizeLimit > 0 && size > imageSizeLimit * 2**10) html += ' style="color: red;"';
	  html += '>' + formattedSize(size) + '</span>)';
	  info.innerHTML = html;
	}).catch(reason => { info.textContent = img.naturalWidth + '×' + img.naturalHeight });
  };
  img.onerror = function(evt) { console.warn('Image source couldnot be loaded:', evt, imgUrl) };
  img.src = imgUrl;
  div.append(img);
}

function writeInfo() {
  var input = document.querySelector('input[name="summary"]');
  if (input != null && !input.disabled && !input.value) input.value = 'Image update/rehost';
}

function setCover(url) {
  return verifyImageUrl(url).then(imageUrl => {
	this.value = imageUrl;
	writeInfo();
	coverPreview(imageUrl);
	return checkImageSize(imageUrl, this).then(imageUrl => {
	  this.disabled = true;
	  return imageHosts.rehostImages([imageUrl]).then(singleImageGetter).then(imageUrl => {
		if (imageUrl == null) throw 'invalid image';
		this.value = imageUrl;
	  });
	}).catch(reason => {
	  this.value = imageUrl;
	  logFail(reason + ' (not rehosted)');
	}).then(() => {
	  this.disabled = false;
	  return imageUrl;
	});
  });
}

function inputDataHandler(evt, data) {
  const rehoster = imageUrl => imageHosts.rehostImages([imageUrl]).then(singleImageGetter).then(function(imageUrl) {
	if (!urlParser.test(imageUrl)) {
	  console.warn('rehostImages returns invalid image URL:', imageUrl);
	  throw 'invalid image URL';
	}
	evt.target.value = imageUrl;
	writeInfo();
  });

  if (!data) return true;
  if (data.files.length > 0) {
	if (data.files[0].type && !data.files[0].type.startsWith('image/')) return true;
	evt.target.disabled = true;
	if (evt.target.hTimer) {
	  clearTimeout(evt.target.hTimer);
	  delete evt.target.hTimer;
	}
	evt.target.style.color = 'white';
	evt.target.style.backgroundColor = 'darkred';
	let progressBar = { };
	function progressHandler(worker, param = null) {
	  if (param && typeof param == 'object') {
		if (param.readyState > 1 || progressBar.current != undefined && worker !== progressBar.current
			|| Date.now() < progressBar.lastUpdate + 100) return;
		let pct = Math.floor(Math.min(param.done * 100 / param.total, 100));
		if (pct <= progressBar.lastPct) return;
		evt.target.value = 'Uploading... [' + (progressBar.lastPct = pct) + '%]';
		progressBar.lastUpdate = Date.now();
	  } else if (param == null) {
		progressBar = { current: worker };
		evt.target.value = 'Uploading...';
	  }
	}
	const file = data.files[0];
	evt.target.disabled = true;
	checkImageSize(file, evt.target, progressHandler).catch(function(reason) {
	  logFail('Downsizing of source image not possible (' + reason + '), uploading original size');
	  return file;
	}).then(function(result) {
	  const uploader = file => imageHosts.uploadImages([file], progressHandler).then(singleImageGetter).then(function(imageUrl) {
		evt.target.value = imageUrl;
		coverPreview(imageUrl, file.size);
		writeInfo();
	  });

	  if (urlParser.test(result)) return rehoster(result).catch(function(reason) {
		logFail('Downsizing of source image failed (' + reason + '), uploading original size');
		return uploader(file);
	  });
	  if (result instanceof File) return uploader(result);
	  console.warn('invalid checkImageSize(...) result:', result);
	  return Promise.reject('invalid checkImageSize(...) result');
	}).then(function() {
	  evt.target.style.backgroundColor = '#008000';
	  evt.target.hTimer = setTimeout(function() {
		evt.target.style.backgroundColor = null;
		evt.target.style.color = null;
		delete evt.target.hTimer;
	  }, 10000);
	}, function(reason) {
	  imageClear(evt);
	  evt.target.style.backgroundColor = null;
	  evt.target.style.color = null;
	  Promise.resolve(reason).then(msg => { alert(msg) });
	}).then(() => { evt.target.disabled = false });
	return false;
  } else if (data.items.length > 0) {
	let links = data.getData('text/uri-list');
	if (links) links = links.split(/\r?\n/); else {
	  links = data.getData('text/x-moz-url');
	  if (links) links = links.split(/\r?\n/).filter((item, ndx) => ndx % 2 == 0);
	  	else if (links = data.getData('text/plain')) links = links.split(/\r?\n/);
	}
	if (Array.isArray(links) && links.length > 0) imageUrlResolver(links[0]).then(verifyImageUrl).then(function(imageUrl) {
	  evt.target.disabled = true;
	  evt.target.value = imageUrl;
	  coverPreview(imageUrl);
	  checkImageSize(imageUrl, evt.target).then(rehoster).catch(function(reason) {
		evt.target.value = imageUrl;
		Promise.resolve(reason).then(msg => { alert(msg + ' (not rehosted)') });
	  }).then(() => { evt.target.disabled = false });
	}).catch(function(e) {
	  console.error(e);
	  alert(e);
	});
	return false;
  }
  return true;
}

function rehoster(promises, resultsHandler, target = null) {
  if (!Array.isArray(promises)) throw 'invalid parameter';
  return Promise.all(promises).then(function(resolved) {
	var resolvedUrls = resolved.flatten();
	if (target instanceof HTMLElement) {
	  target.disabled = true;
	  if (resolvedUrls.length > 1 && !['notwhat.cd'].some(hostname => document.domain == hostname))
		var progressBar = new RHProgressBar(target, resolvedUrls.length);
	}
	return (opti_PNG && target instanceof HTMLElement ?
		Promise.all(resolvedUrls.map(resolvedUrl => optiPNG(resolvedUrl).catch(reason => Promise.resolve(resolvedUrl))))
			: Promise.resolve(resolvedUrls))
	.then(srcUrls => imageHosts.rehostImages(srcUrls, RHProgressBar.prototype.update.bind(progressBar)).catch(function(reason) {
	  Promise.resolve(reason).then(msg => { alert(msg + ' (not rehosted)') });
	  RHProgressBar.prototype.update.call(progressBar, -1, false);
	  return verifyImageUrls(srcUrls);
	}).then(function(results) {
	  resultsHandler(results, arrayGrouping(resolved).flatten());
	  RHProgressBar.prototype.cleanUp.call(progressBar);
	  if (target instanceof HTMLElement) target.disabled = false;
	}));
  });
}

function textAreaDropHandler(evt) {
  if (!evt.dataTransfer || evt.shiftKey) return true;
  if (evt.dataTransfer.files.length > 0) {
	let images = Array.from(evt.dataTransfer.files).filter(file => !file.type || file.type.startsWith('image/'));
	if (images.length <= 0) return true;
	evt.target.disabled = true;
	if (!['notwhat.cd'].some(hostname => document.domain == hostname))
		var progressBar = new ULProgressBar(evt.target, images.map(image => image.size));
	(function() {
	  if (!opti_PNG || !images.every(image => image.type == 'image/png')) return Promise.reject('!optiPNG');
	  ULProgressBar.prototype.update.call(progressBar, -1);
	  return rehoster([Promise.all(images.map((image, index) => optiPNG(image, (param = null) =>
		ULProgressBar.prototype.update.call(progressBar, -1, param, index))))], resultsHandler);
	})().catch(reason => imageHosts.uploadImages(images, ULProgressBar.prototype.update.bind(progressBar))
	.then(resultsHandler, reason => { Promise.resolve(reason).then(msg => { alert(msg) }) })).then(function() {
	  ULProgressBar.prototype.cleanUp.call(progressBar);
	  evt.target.disabled = false;
	});
	evt.stopPropagation();
	return false;
  } else if (evt.dataTransfer.items.length > 0) {
	let content = evt.dataTransfer.getData('text/uri-list');
	if (content) content = content.split(/(?:\r?\n)+/); else {
	  content = evt.dataTransfer.getData('text/x-moz-url');
	  if (content) content = content.split(/(?:\r?\n)+/).filter((item, ndx) => ndx % 2 == 0);
	};
	if (!Array.isArray(content) || content.length <= 0) return true;
	rehoster(content.map(imageUrlResolver), resultsHandler, evt.target);
	evt.stopPropagation();
	return false;
  }
  return true;

  function resultsHandler(results, groups = undefined) {
	if (results.length <= 0) return;
	if (evt.altKey && !evt.target.noBBCode) {
	  let modal = document.createElement('div');
	  modal.id = 'ihh-template-selector-background';
	  modal.style = 'position: fixed; left: 0; top: 0; width: 100%; height: 100%; background-color: #0008;' +
		'opacity: 0; transition: opacity 0.15s linear;';
	  modal.innerHTML = `
<div id="ihh-template-selector" style="background-color: darkslategray; position: absolute; top: 30%; left: 35%; border-radius: 0.5em; padding: 20px 30px;">
  <div style="color: white;margin-bottom: 20px;">Insert as:</div>
  <input id="btn-insert" type="button" value="Insert" style="margin-top: 30px"/>
  <input id="btn-cancel" type="button" value="Cancel" style="margin-top: 30px"/>
</div>
`;
	  document.body.append(modal);
	  let form = document.getElementById('ihh-template-selector'),
		  btnInsert = document.querySelector('div#ihh-template-selector input#btn-insert'),
		  btnCancel = document.querySelector('div#ihh-template-selector input#btn-cancel');
	  if (form == null || btnInsert == null || btnCancel == null) {
		console.warn('Dialog creation error');
		insertResults();
		return;
	  }
	  [
		['BBcode: original size', 1],
		['BBcode: thumbnails with link to original', 2],
		['BBcode: thumbnails with link to share page', 3],
		['BBcode: screenshot comparison (PTP)', 4],
		['BBcode: screenshot comparison + encode images (PTP)', 5],
		['Markdown: original size', 9],
		['HTML: original size', 6],
		['HTML: thumbnails with link to original', 7],
		['HTML: thumbnails with link to share page', 8],
		['Raw links', 0],
	  ].forEach(function(item) {
		var radio = document.createElement('input');
		radio.type = 'radio';
		radio.name = 'template';
		radio.value = item[1];
		radio.style = 'margin: 5px 15px 5px 0px; cursor: pointer;';
		var label = document.createElement('label');
		label.style = 'color: white; cursor: pointer; -webkit-user-select: none; ' +
		  '-moz-user-select: none; -ms-user-select: none; user-select: none;';
		label.append(radio);
		label.append(item[0]);
		form.insertBefore(label, btnInsert);
		var br = document.createElement('br');
		form.insertBefore(br, btnInsert);
	  });
	  if (!results.some(result => typeof result == 'object'
			&& urlParser.test(result.original) && urlParser.test(result.thumb))) disableItem(2, 7);
	  if (!results.some(result => typeof result == 'object'
			&& urlParser.test(result.original) && urlParser.test(result.share))) disableItem(3, 8);
	  if (results.length % 2 != 0) disableItem(4, 5);
	  form.onclick = evt => { evt.stopPropagation() };
	  btnInsert.onclick = function(evt) {
		var template = document.querySelector('div#ihh-template-selector input[name="template"]:checked');
		if (template != null) template = parseInt(template.value);
		modal.remove();
		insertResults(template);
	  };
	  modal.onclick = btnCancel.onclick = evt => { modal.remove() };
	  window.setTimeout(() => { modal.style.opacity = 1 }, 0);

	  function disableItem(...n) {
		n.forEach(function(n) {
		  var radio = document.querySelector('div#ihh-template-selector input[type="radio"][value="' + n + '"]');
		  if (radio == null) return;
		  radio.parentNode.style.opacity = 0.5;
		  radio.disabled = true;
		});
	  }
	} else insertResults();

	function insertResults(template = 1) {
	  if (evt.target.noBBCode) template = 0;
	  if (typeof template != 'number' || isNaN(template)) return;
	  var code = '', nl = [6, 7, 8].includes(template) ? '<br>\n' : '\n', _template;
	  results.forEach(function(result, index) {
		if (_template == 1 && /\[img\]\[\/img\]/i.test(evt.target.value)) {
		  evt.target.value = RegExp.leftContext + '[img]' + getImgUrl(result) + '[/img]' + RegExp.rightContext;
		  return;
		}
		_template = template;
		if (template == 2 && (typeof result != 'object' || !urlParser.test(result.original) || !urlParser.test(result.thumb))
			|| template == 3 && (typeof result != 'object' || !urlParser.test(result.share) || !urlParser.test(result.thumb)))
		  _template = 1;
		else if (template == 7 && (typeof result != 'object' || !urlParser.test(result.original) || !urlParser.test(result.thumb))
			|| template == 8 && (typeof result != 'object' || !urlParser.test(result.share) || !urlParser.test(result.thumb)))
		  _template = 6;
		else _template = template;
		if (index > 0) {
		  let thumb = [2, 3, 7, 8].includes(_template);
		  code += isGroupBoundary(groups, index) ? thumb ? nl : nl + nl : thumb ? ' ' : nl;
		}
		switch (_template) {
		  case 0: case 4: case 5: code += getImgUrl(result); break;
		  case 1: code += '[img]' + getImgUrl(result) + '[/img]'; break;
		  case 2: code += '[url=' + getImgUrl(result) + '][img]' + result.thumb + '[/img][/url]'; break;
		  case 3: code += '[url=' + result.share + '][img]' + result.thumb + '[/img][/url]'; break;
		  case 6: code += '<img src="' + getImgUrl(result) + '">'; break;
		  case 7: code += '<a href="' + getImgUrl(result) + '" target="_blank"><img src="' + result.thumb + '"></a>'; break;
		  case 8: code += '<a href="' + result.share + '" target="_blank"><img src="' + result.thumb + '"></a>'; break;
		  case 9: code += '![](' + getImgUrl(result) + ')'; break;
		}
	  });
	  if ([4, 5].includes(template)) {
		code = '[comparison=Source, Encode]' + code + '[/comparison]';
		if (template == 5) {
		  code += nl;
		  results.forEach((result, index) => { if (index % 2 != 0) code += nl + '[img]' + getImgUrl(result) + '[/img]' });
		}
	  }
	  if (evt.target.value.trimRight().length <= 0) evt.target.value = code; else if (evt.ctrlKey) {
		evt.target.value = evt.target.value.slice(0, evt.rangeOffset) + code + evt.target.value.slice(evt.rangeOffset);
	  } else evt.target.value = evt.target.value.trimRight() + nl + nl + code;

	  function getImgUrl(result) {
		if (typeof result == 'object' && urlParser.test(result.original)) return result.original;
		if (typeof result == 'string' && urlParser.test(result)) return result;
		throw 'Invalid result format';
	  }
	}
  }
}

function textAreaPasteHandler(evt) {
  if (!evt.clipboardData) return true;
  if (evt.clipboardData.files.length > 0) {
	let images = Array.from(evt.clipboardData.files).filter(file => !file.type || file.type.startsWith('image/'));
	if (images.length <= 0) return true;
	evt.target.disabled = true;
	if (!['notwhat.cd'].some(hostname => document.domain == hostname))
	  var progressBar = new ULProgressBar(evt.target, images.map(image => image.size));
	(function() {
	  if (!opti_PNG || !images.every(image => image.type == 'image/png')) return Promise.reject('!optiPNG');
	  ULProgressBar.prototype.update.call(progressBar, -1);
	  return rehoster([Promise.all(images.map((image, index) => optiPNG(image, (param = null) =>
		ULProgressBar.prototype.update.call(progressBar, -1, param, index))))], resultsHandler);
	})().catch(reason => imageHosts.uploadImages(images, ULProgressBar.prototype.update.bind(progressBar))
		.then(resultsHandler, reason => { Promise.resolve(reason).then(msg => { alert(msg) }) }))
	.then(function() { // __finally
	  ULProgressBar.prototype.cleanUp.call(progressBar);
	  evt.target.disabled = false;
	});
	evt.stopPropagation();
	return false;
  } else if (evt.clipboardData.items.length > 0) {
	let urls = evt.clipboardData.getData('text/plain').split(/(?:\r?\n)+/);
	if (urls.length <= 0 || !urls.every(RegExp.prototype.test.bind(urlParser))) return true;
// 	Promise.all(urls.map(imageUrlResolver)).then(function(resolved) {
// 	  evt.target.disabled = true;
// 	  var resolvedUrls = resolved.flatten();
// 	  if (resolvedUrls.length > 1 && !['notwhat.cd'].some(hostname => document.domain == hostname))
// 	  	progressBar = new RHProgressBar(evt.target, resolvedUrls.length);
// 	  imageHosts.rehostImages(resolvedUrls, RHProgressBar.prototype.update.bind(progressBar)).catch(function(reason) {
// 		Promise.resolve(reason).then(msg => { alert(msg + ' (not rehosted)') });
// 		RHProgressBar.prototype.update.call(progressBar, -1, false);
// 		return verifyImageUrls(resolvedUrls);
// 	  }).then(function(results) {
// 		resultsHandler(results, arrayGrouping(resolved).flatten());
// 		progressBar.cleanUp.call(progressBar);
// 		evt.target.disabled = false;
// 	  });
// 	});
// 	evt.stopPropagation();
// 	return false;
  }
  return true;

  function resultsHandler(results, groups = undefined) {
	var selStart = evt.target.selectionStart, phpBB = '';
	results.forEach(function(result, index) {
	  var thumb = evt.altKey && !evt.target.noBBCode && typeof result == 'object'
		&& urlParser.test(result.originasl) && urlParser.test(result.thumb);
	  if (index > 0) phpBB += isGroupBoundary(groups, index) ? thumb ? '\n' : '\n\n' : thumb ? ' ' : '\n';
	  if (typeof result == 'object' && result.original) var imgUrl = result.original;
	  	else if (typeof result == 'string') imgUrl = result;
	  		else throw 'Invalid result format';
	  phpBB += evt.target.noBBCode ? phpBB += imgUrl : !thumb ? '[img]' + imgUrl + '[/img]'
		: '[url=' + imgUrl + '][img]' + result.thumb + '[/img][/url]';
	});
	if (phpBB.length <= 0) return;
	evt.target.value = evt.target.value.slice(0, selStart) + phpBB + evt.target.value.slice(evt.target.selectionEnd);
	evt.target.setSelectionRange(selStart + phpBB.length, selStart + phpBB.length);
  }
}

function arrayGrouping(arr) {
  return Array.isArray(arr) ? arr.map(function(elem) {
	if (!Array.isArray(elem)) return 1;
	return elem.every(elem => !Array.isArray(elem)) ? elem.length : arrayGrouping(elem);
  }) : null;
}

function isGroupBoundary(groups, index) {
  return index > 0 && Array.isArray(groups)
  	&& groups.some((len, ndx, arr) => index == arr.slice(0, ndx).reduce((acc, len) => acc + len, 0));
}

function checkImageSize(image, elem = null, progressHandler = null) {
  if (imageHosts.rhHostChain.length <= 0) return Promise.reject('no hosts to upload result');
  let imageSizeLimit = GM_getValue('image_size_reduce_threshold');
  if (!(imageSizeLimit > 0)) return Promise.resolve(image);
  if (!(elem instanceof HTMLElement)) elem = null;
  if (elem != null) elem.disabled = true;
  return (image instanceof File ? Promise.resolve(image.size) : getRemoteFileSize(image)).then(function(size) {
	if (size <= imageSizeLimit * 2**10) return image;
	return reduceImageSize(image, GM_getValue('image_reduce_maxheight', 2160),
		GM_getValue('image_reduce_jpegquality', 90), progressHandler).then(function(output) {
	  if (elem != null) {
		elem.value = output.uri;
		if (progressHandler) coverPreview(elem, output.uri, output.size);
	  }
	  Promise.resolve(output.size).then(reducedSize => {
		console.log('cover size reduced by ' + Math.round((size - reducedSize) * 100 / size) +
			'% (' + Math.ceil(size / 2**10) + ' → ' + Math.ceil(reducedSize / 2**10) + ' KiB)');
	  });
	  return output.uri;
	});
  }).catch(function(reason) {
	logFail('failed to get remote image size or optimize the image: ' + reason + ' (size reduction was not performed)');
	return image;
  }).then(function(finalResult) {
	if (elem != null) {
	  if (urlParser.test(finalResult)) {
		if (finalResult != elem.value) elem.value = finalResult;
	  } else elem.value = '';
	  elem.disabled = false;
	}
	return finalResult;
  });
}

function imageUrlResolver(url) {
  return urlResolver(url).then(url => verifyImageUrl(url).catch(function(reason) {
	const notFound = Promise.reject('No title image for this URL');
	function getFromMeta(root) {
	  var meta = root instanceof Document || root instanceof Element ? [
		'meta[property="og:image:secure_url"][content]',
		'meta[property="og:image"][content]',
		'meta[name="og:image"][content]',
		'meta[itemprop="og:image"][content]',
		'meta[itemprop="image"][content]',
	  ].reduce((elem, selector) => elem || root.querySelector(selector), null) : null;
	  return meta != null && urlParser.test(meta.content) ? meta.content : undefined;
	}

	try { url = new URL(url) } catch(e) { return Promise.reject(e) }
	if (url.hostname.endsWith('pinterest.com'))
	  return pinterestResolver(url);
	else if (url.hostname.endsWith('free-picload.com')) {
	  if (url.pathname.startsWith('/album/')) return imageHostHandlers.picload.galleryResolver(url);
	} else if (url.hostname.endsWith('bandcamp.com')) return globalXHR(url).then(function(response) {
	  var ref = response.document.querySelector('div#tralbumArt > a.popupImage');
	  ref = ref != null ? ref.href : getFromMeta(response.document);
	  return ref ? Promise.resolve(ref.replace(/_\d+(?=\.\w+$)/, '_0')) : notFound;
	}); else if (url.hostname.endsWith('7digital.com') && url.pathname.startsWith('/artist/'))
	  return globalXHR(url).then(function(response) {
		var img = response.document.querySelector('img[itemprop="image"]');
		return img != null ? img.src : notFound;
	  });
	else if (url.hostname.endsWith('geekpic.net')) return globalXHR(url).then(function(response) {
	  var a = response.document.querySelector('div.img-upload > a.mb');
	  return a != null ? a.href : notFound;
	}); else if (url.hostname.endsWith('qq.com') && url.pathname.includes('/album/')) return globalXHR(url).then(function(response) {
	  var img = response.document.querySelector('img#albumImg');
	  return img != null ? img.src.replace(/(?:_\d+)?(\.\w+)(?:\?.*)?$/, '$1').replace(/R\d+x\d+/, '') : notFound;
	}); else switch (url.hostname) {
	  // general image hostings
	  case 'www.imgur.com': case 'imgur.com':
		if (url.pathname.startsWith('/a/')) return globalXHR(url, { responseType: 'text' }).then(function(response) {
		  if (/^\s*(?:image)\s*:\s*(\{.+\}),\s*$/m.test(response.responseText)) try {
		  	return JSON.parse(RegExp.$1).album_images.images.map(image => 'https://i.imgur.com/' + image.hash + image.ext);
		  } catch(e) { debug.warn(e) }
		  return notFound;
		});
		return globalXHR(url).then(response => response.document.querySelector('link[rel="image_src"]').href);
	  case 'pixhost.to':
		if (url.pathname.startsWith('/gallery/')) return globalXHR(url).then(response =>
			Promise.all(Array.from(response.document.querySelectorAll('div.images > a')).map(a => imageUrlResolver(a.href))));
		if (url.pathname.startsWith('/show/')) return globalXHR(url)
		  .then(response => response.document.querySelector('img#image').src);
		break;
	  case 'malzo.com':
		if (url.pathname.startsWith('/al/')) return imageHostHandlers.malzo.galleryResolver(url);
		break;
	  case 'imgbb.com': case 'ibb.co':
		if (url.pathname.startsWith('/album/')) return imageHostHandlers.imgbb.galleryResolver(url);
		break;
	  case 'jerking.empornium.ph':
		if (url.pathname.startsWith('/album/')) return imageHostHandlers.jerking.galleryResolver(url);
		break;
	  case 'imgbox.com':
		if (url.pathname.startsWith('/g/')) return globalXHR(url).then(response =>
			Promise.all(Array.from(response.document.querySelectorAll('div#gallery-view-content > a'))
				.map(a => imageUrlResolver('https://imgbox.com' + a.pathname))));
		break;
	  case 'postimage.org': case 'postimg.cc':
		if (!url.pathname.startsWith('/gallery/')) break;
		return PostImage.galleryResolver(url);
	  case 'www.imagevenue.com': case 'imagevenue.com':
		return globalXHR(url, { headers: { Referer: 'http://www.imagevenue.com/' } }).then(function(response) {
		  var images = Array.from(response.document.querySelectorAll('div.card img')).map(function(img) {
			return img.src.includes('://cdn-images') ? Promise.resolve(img.src) : imageUrlResolver(img.parentNode.href);
		  });
		  return images.length > 1 ? Promise.all(images) : images.length == 1 ? images[0] : notFound;
		});
	  case 'www.imageshack.us': case 'imageshack.us':
		return globalXHR(url).then(response => response.document.querySelector('a#share-dl').href);
	  case 'www.flickr.com': case 'flickr.com':
		if (!url.pathname.startsWith('/photos/')) break;
		return globalXHR(url).then(function(response) {
		  if (/\b(?:modelExport)\s*:\s*(\{.+\}),/.test(response.responseText)) try {
			var urls = JSON.parse(RegExp.$1).main['photo-models'].map(function(photoModel) {
			  var sizes = Object.keys(photoModel.sizes).sort((a, b) => photoModel.sizes[b].width * photoModel.sizes[b].height
					- photoModel.sizes[a].width * photoModel.sizes[a].height);
			  return sizes.length > 0 ? 'https:'.concat(photoModel.sizes[sizes[0]].url) : null;
			});
			if (urls.length == 1) return urls[0]; else if (urls.length > 1) return urls;
		  } catch(e) { console.warn(e) }
		  return notFound;
		});
	  case 'photos.google.com':
		return googlePhotosResolver(url);
	  case 'www.500px.com': case 'web.500px.com': case '500px.com':
		if (/^\/photo\/(\d+)\b/i.test(url.pathname))
		  return _500pxUrlHandler('photos?ids='.concat(RegExp.$1));
		else if (/\/galleries\/([\w\-]+)/i.test(url.pathname)) {
		  let galleryId = RegExp.$1;
		  return globalXHR(url, { rsponseType: 'text' }).then(function(response) {
			if (!/\b(?:App\.CuratorId)\s*=\s*"(\d+)"/.test(response.responseText)) return Promise.reject('Unexpected page structure');
			return _500pxUrlHandler('users/' + RegExp.$1 + '/galleries/' + galleryId + '/items?sort=position&sort_direction=asc&rpp=999');
		  });
		}
		break;
	  case 'www.pxhere.com': case 'pxhere.com':
		if (url.pathname.includes('/photo/')) return globalXHR(url).then(response =>
			JSON.parse(response.document.querySelector('div.hub-media-content > script[type="application/ld+json"]').text).contentUrl);
		else if (url.pathname.includes('/collection/')) return pxhereCollectionResolver(url);
		break;
	  case 'www.unsplash.com': case 'unsplash.com':
		if (url.pathname.startsWith('/photos/')) return globalXHR(url.origin + url.pathname + '/download', { method: 'HEAD' })
		  .then(response => response.finalUrl.replace(/\?.*$/, ''));
		else if (url.pathname.includes('/collections/')) return unsplashCollectionResolver(url);
		break;
	  case 'www.pexels.com': case 'pexels.com':
		if (url.pathname.startsWith('/photo/')) return globalXHR(url)
		  .then(response => response.document.querySelector('meta[property="og:image"][content]').content.replace(/\?.*$/, ''));
		else if (url.pathname.startsWith('/collections/')) return pexelsCollectionResolver(url);
		break;
	  case 'www.piwigo.org': case 'piwigo.org':
		/*if (url.pathname.includes('/picture/')) */return globalXHR(url, { responseType: 'text' }).then(function(response) {
		  if (/^(?:RVAS)\s*=\s*(\{[\S\s]+?\})$/m.test(response.responseText)) try {
			var derivatives = eval('(' + RegExp.$1 + ')').derivatives.sort((a, b) => b.w * b.h - a.w * a.h);
			return derivatives.length > 0 ? 'https://piwigo.org/demo/'.concat(derivatives[0].url) : notFound;
		  } catch(e) { console.warn(e) }
		  return Promise.reject('Unexpected page structure');
		});
		break;
	  case 'www.freeimages.com': case 'freeimages.com':
		if (url.pathname.startsWith('/photo/')) return globalXHR(url).then(function(response) {
		  var types = Array.from(response.document.querySelectorAll('ul.download-type > li > span.reso'))
		  	.sort((a, b) => eval(b.textContent.replace('x', '*')) - eval(a.textContent.replace('x', '*')));
		  return types.length > 0 ? url.origin.concat(types[0].parentNode.querySelector('a').pathname) : notFound;
		});
		break;
	  case 'redacted.ch':
		if (url.pathname != '/image.php') break;
		return globalXHR(url, { method: 'HEAD' }).then(response => response.finalUrl);
	  case 'demo.cloudimg.io':
		if (!/\b(https?:\/\/\S+)$/.test(url.pathname.concat(url.search, url.hash))) break;
		var resolved = RegExp.$1;
		if (/\b(?:https?):\/\/(?:\w+\.)*discogs\.com\//i.test(resolved)) break;
		return imageUrlResolver(resolved);
	  case 'www.pimpandhost.com': case 'pimpandhost.com':
		if (!url.pathname.startsWith('/image/')) break;
		return globalXHR(url).then(function(response) {
		  var elem = resopnse.document.querySelector('div.main-image-wrapper');
		  if (elem != null && elem.dataset.src) return 'https:'.concat(elem.dataset.src);
		  elem = resopnse.document.querySelector('div.img-wrapper > a > img');
		  return elem != null ? 'https:'.concat(elem.src) : notFound;
		});
	  case 'www.screencast.com': case 'screencast.com':
		return globalXHR(url).then(function(response) {
		  var ref = response.document.querySelectorAll('ul#containerContent > li a.media-link');
		  if (ref.length <= 0) return getFromMeta(response.document) || notFound;
		  return Promise.all(Array.from(ref).map(a => imageUrlResolver('https://www.screencast.com' + a.href)));
		});
	  case 'abload.de':
		if (!url.pathname.startsWith('/image.php')) break;
		return globalXHR(url).then(function(response) {
		  var elem = response.document.querySelector('img#image');
		  if (elem == null) return notFound;
		  var src = new URL(elem.src);
		  return imageHostHandlers.abload.origin + src.pathname + src.search;
		});
	  case 'fastpic.ru':
		if (url.pathname.startsWith('/view/'))
		  return globalXHR(url).then(response => imageUrlResolver(response.document.querySelector('a.img-a').href));
		if (url.pathname.startsWith('/fullview/')) return globalXHR(url).then(function(response) {
		  var node = response.document.getElementById('image');
		  if (node != null) return node.src;
		  return /\bvar\s+loading_img\s*=\s*'(\S+?)';/.test(response.responseText) ? RegExp.$1 : notFound;
		});
		break;
	  case 'www.radikal.ru': case 'radikal.ru': case 'a.radikal.ru':
		return globalXHR(url).then(response => response.document.querySelector('div.mainBlock img').src);
	  case 'imageban.ru': case 'ibn.im':
		return globalXHR(url).then(response => response.document.querySelector('a[download]').href);
	  case 'svgshare.com':
		return globalXHR(url).then(function(response) {
		  var link;
			response.document.querySelectorAll('ul#shares > li > input[type="text"]')
			  .forEach(input => { if (!link && /^(?:https?:\/\/.+\.svg)$/.test(input.value)) link = input.value; });
		  return link || notFound;
		});
	  case 'slow.pics':
		if (!url.pathname.startsWith('/c/')) break;
		return globalXHR(url).then(function(response) {
		  var nodes = response.document.querySelectorAll('img.card-img-top');
		  if (nodes.length > 1) return Array.from(nodes).map(img => img.src);
		  	else if (nodes.length > 0) return nodes[0].src;
		  nodes = response.document.querySelectorAll('a#comparisons + div.dropdown-menu > a.dropdown-item');
		  if (nodes.length > 0) return Promise.all(Array.from(nodes).map(a => globalXHR(url.origin + a.pathname).then(response =>
			Array.from(response.document.querySelectorAll('div#preload-images > img')).map(img => img.src))));
		  return notFound;
		});
	  case 'www.amazon.com': case 'amazon.com':
	  case 'www.amazon.co.uk': case 'www.amazon.de': case 'www.amazon.fr': case 'www.amazon.es': case 'www.amazon.it':
		return globalXHR(url).then(function(response) {
		  const rx = /\._\S+?_(?=\.)/,
				getImgOrigin = colorImage => (colorImage.hiRes || colorImage.large || colorImage.thumb).replace(rx, '');
		  let obj = /^\s*(?:var\s+obj\s*=\s*jQuery\.parseJSON)\('(\{.+\})'\);/m.exec(response.responseText);
		  if (obj != null) {
			try { obj = JSON.parse(obj[1]) } catch(e) { try { obj = eval('(' + obj[1] + ')') } catch(e) { obj = { } } }
			let variants = Object.keys(obj.colorImages);
			if (variants.length > 0) return variants.map(key => obj.colorImages[key].map(getImgOrigin));
		  }
		  let colorImages = /^\s*'colorImages':\s*(\{.+\}),?$/m.exec(response.responseText);
		  if (colorImages != null) {
			try { colorImages = JSON.parse(colorImages[1].replace(/'/g, '"')) }
				catch(e) { try { colorImages = eval('(' + colorImages[1] + ')') } catch(e) { colorImages = { } } }
			if (Array.isArray(colorImages.initial) && colorImages.initial.length > 0)
			  return colorImages.initial.map(getImgOrigin);
		  }
		  let img = ['div#ppd-left img', 'img#igImage', 'img#imgBlkFront']
		  	.reduce((acc, sel) => acc || response.document.querySelector(sel), null);
		  if (img == null) return notFound;
		  if (img.dataset.aDynamicImage) try {
			let imgUrl = Object.keys(JSON.parse(img.dataset.aDynamicImage))[0];
			if (urlParser.test(imgUrl)) return imgUrl.replace(rx, '');
		  } catch(e) { }
		  return urlParser.test(img.src) ? img.src.replace(rx, '') : notFound;
		});
	  case 'www.casimages.com': case 'casimages.com':
		if (!url.pathname.startsWith('/i/')) break;
		return globalXHR(url).then(function(response) {
		  var elem = response.document.querySelector('div.logo > a');
		  if (elem != null) return elem.href;
		  elem = response.document.querySelector('div.logo img');
		  return elem != null ? elem.src : notFound;
		});
	  case 'www.getapic.me': case 'getapic.me':
		return globalXHR(url, { responseType: 'json' }).then(function(response) {
		  if (!response.response.result.success) return Promise.reject(response.response.result.errors);
		  if (Array.isArray(response.response.result.data.images))
			return response.response.result.data.images.map(image => image.url);
		  return response.response.result.data.image ? response.response.result.data.image.url : notFound;
		});
	  // music-related
	  case 'www.musicbrainz.org': case 'musicbrainz.org':
		if (!['release', 'release-group'].some(branch => url.pathname.includes('/' + branch + '/'))) break;
		return globalXHR(url).then(function(response) {
		  var node = response.document.querySelector('p.subheader > span.small > a');
		  return (node != null ? imageUrlResolver('https://musicbrainz.org' + node.pathname) : Promise.reject('no release group')).catch(function(reason) {
			return (node = response.document.querySelector('a.artwork-image')) != null ? node.href
				: (node = response.document.querySelector('div.cover-art > img')) != null ? node.src : notFound;
		  });
		});
	  case 'music.apple.com':
		if (!itunesRlsParser.test(url)) break;
		return globalXHR(url).then(function(response) {
		  let meta = getFromMeta(response.document);
		  return meta ? verifyImageUrl(meta.replace(...itunesImageMax)).catch(reason => meta) : notFound;
		});
	  case 'www.deezer.com': case 'deezer.com':
		if (!dzrRlsParser.test(url)) break;
		return globalXHR('https://api.deezer.com/album/' + RegExp.$2 + '/image', {
		  method: 'HEAD',
		}).then(response => verifyImageUrl(response.finalUrl.replace(...dzImageMax))).catch(function(reason) {
		  console.warn('Deezer API image retrieval failed:', reason, url);
		  return globalXHR(url).then(function(response) {
		  	let meta = getFromMeta(response.document);
		  	return meta ? verifyImageUrl(meta.replace(...dzImageMax)).catch(reason => meta) : notFound;
		  });
		});
	  case 'www.qobuz.com': case 'qobuz.com':
		if (!url.pathname.includes('/album/')) break;
		return globalXHR(url).then(function(response) {
		  var img = response.document.querySelector('div.album-cover > img');
		  if (img == null) return notFound;
		  return verifyImageUrl(img.src.replace(/_\d{3}(?=\.\w+$)/, '_org'))
			.catch(reason => verifyImageUrl(img.src.replace(/_\d{3}(?=\.\w+$)/, '_max')))
			.catch(reason => img.src);
		});
	  case 'www.discogs.com': case 'discogs.com':
		return globalXHR(url).then(function(response) {
		  const dcOrigin = 'https://www.discogs.com';
		  let master = response.document.getElementById('all-versions-link');
		  return (master != null ?
			globalXHR(dcOrigin + master.pathname).then(response => getFromMeta(response.document) || notFound)
		  		: Promise.reject('no master')).catch(reason => getFromMeta(response.document) || notFound)
		  	.then(imgUrl => /^(?:https?):\/\/(?:img\.discogs\.com)\/.+\/(\S+?\.\w+)\b/i.test(imgUrl) ?
				dcOrigin + '/image/' + RegExp.$1 : imgUrl);
		});
	  case 'www.boomkat.com': case 'boomkat.com':
		if (!url.pathname.startsWith('/products/')) break;
		return globalXHR(url).then(function(response) {
		  var img = response.document.querySelector('img[itemprop="image"]');
		  if (img == null) return notFound;
		  return verifyImageUrl(img.src.replace(/\/large\//i, '/original/')).catch(reason => img.src);
		});
	  case 'www.bleep.com': case 'bleep.com':
		if (!url.pathname.startsWith('/release/')) break;
		return globalXHR(url).then(function(response) {
		  var meta = getFromMeta(response.document);
		  return meta ? verifyImageUrl(meta.replace(/\/r\/[a-z]\//i, '/r/')).catch(reason => meta) : notFound;
		});
	  case 'www.soundcloud.com': case 'soundcloud.com':
		return globalXHR(url).then(function(response) {
		  var meta = getFromMeta(response.document);
		  return meta ? verifyImageUrl(meta.replace(/\bt\d+x\d+(?=\.\w+$)/, 'original')).catch(reason => meta) : notFound;
		});
	  case 'www.prestomusic.com': case 'prestomusic.com':
		if (!url.pathname.includes('/products/')) break;
		return globalXHR(url)
		  .then(response => verifyImageUrl(response.document.querySelector('div.c-product-block__aside > a').href.replace(/\?\d+$/)));
	  case 'www.bontonland.cz':case 'bontonland.cz':
		return globalXHR(url).then(response => response.document.querySelector('a.detailzoom').href);
	  case 'www.prostudiomasters.com': case 'prostudiomasters.com':
		if (!url.pathname.includes('/album/')) break;
		return globalXHR(url).then(function(response) {
		  var a = response.document.querySelector('img.album-art');
		  return verifyImageUrl(a.currentSrc).catch(reason => a.src);
		});
	  case 'www.e-onkyo.com': case 'e-onkyo.com':
		if (!url.pathname.includes('/album/')) break;
		return globalXHR(url).then(function(response) {
		  var meta = getFromMeta(response.document);
		  return meta ? meta.replace(/\/s\d+\//, '/s0/') : notFound;
		})
	  case 'store.acousticsounds.com':
		return globalXHR(url).then(function(response) {
		  var link = response.document.querySelector('div#detail > link[rel="image_src"]');
		  return verifyImageUrl(link.href.replace(/\/medium\//i, '/xlarge/')).catch(reason => link.href);
		});
	  case 'www.indies.eu': case 'indies.eu':
		if (!url.pathname.includes('/alba/')) break;
		return globalXHR(url).then(response => verifyImageUrl)(response.document.querySelector('div.obrazekDetail > img').src);
	  case 'www.beatport.com': case 'classic.beatport.com': case 'pro.beatport.com': case 'beatport.com':
		if (!url.pathname.startsWith('/release/')) break;
		return globalXHR(url).then(function(response) {
		  var elem = getFromMeta(response.document);
		  return elem || ((elem = response.document.querySelector('div.artwork')) != null ?
			'https:' + elem.dataset.modalArtwork : notFound);
		}).then(imgUrl => imgUrl.replace(/\/image_size\/\d+x\d+\//i, '/image/'));
	  case 'www.beatsource.com': case 'beatsource.com':
		if (!url.pathname.startsWith('/release/')) break;
		return globalXHR(url).then(function(response) {
		  var imgUrl = getFromMeta(response.document);
		  return imgUrl ? imgUrl.replace(/\/image_size\/\d+x\d+\//i, '/') : notFound;
		});
	  case 'www.supraphonline.cz': case 'supraphonline.cz':
		if (!url.pathname.includes('/album/')) break;
		return globalXHR(url).then(response => verifyImageUrl(response.document.querySelector('meta[itemprop="image"]')
			.content.replace(/\?.*$/, '')).catch(reason => notFound));
	  case 'vgmdb.net':
		if (!url.pathname.includes('/album/')) break;
		return globalXHR(url).then(function(response) {
		  var div = response.document.querySelector('div#coverart');
		  return verifyImageUrl(/\b(?:url)\s*\(\"(.*)"\)/i.test(div.style['background-image']) && RegExp.$1).catch(reason => notFound);
		});
	  case 'www.ototoy.jp': case 'ototoy.jp':
		return globalXHR(url).then(function(response) {
		  var img = response.document.querySelector('div#tralbumArt > a.popupImage');
		  return verifyImageUrl(img.dataset.src).catch(reason => img.src);
		});
	  case 'music.yandex.ru':
		if (!url.pathname.includes('/album/')) break;
		return globalXHR(url).then(function(response) {
		  var script = response.document.querySelector('script.light-data');
		  return verifyImageUrl(JSON.parse(script.text).image).catch(reason => notFound);
		});
	  case 'www.pias.com': case 'store.pias.com': case 'pias.com':
		return globalXHR(url).then(function(response) {
		  var node = getFromMeta(response.document);
		  if (node) return verifyImage(node.replace(/\/[sbl]\//i, '/')).catch(reason => node);
		  node = response.document.querySelector('img[itemprop="image"]');
		  return node != null ? verifyImage(node.src.replace(/\/[sbl]\//i, '/')).catch(reason => node.src) : notFound;
		});
	  case 'www.eclassical.com': case 'eclassical.com':
		return globalXHR(url).then(function(response) {
		  var a = response.document.querySelector('div#articleImage > a');
		  return a != null ? a.href : notFound;
		});
	  case 'www.hdtracks.com': case 'hdtracks.com':
		if (!/\/album\/(\w+)\b/.test(url)) break;
		return fetch('https://hdtracks.azurewebsites.net/api/v1/album/' + RegExp.$1).then(response => response.json())
		  .then(result => result.status.toLowerCase() == 'ok' ? result.cover : Promise.reject(result.status));
	  case 'www.muziekweb.nl': case 'muziekweb.nl':
		if (!/\/Link\/(\w+)\b/i.test(url)) break;
		return globalXHR(url).then(function(response) {
		  let meta = getFromMeta(response.document)
		  return meta ? meta.replace(/\/COVER\/\w+\b/i, '/COVER/SUPERLARGE') : notFound;
		});
	  case 'www.deejay.de': case 'deejay.de':
		return globalXHR(url).then(function(response) {
		  var elem = response.document.querySelector('div#gallery > a') || response.document.querySelector('div.cover a');
		  if (elem != null) return 'https://www.deejay.de' + elem.pathname;
		  return (elem = getFromMeta(response.document)) ? elem : notFound;
		}).then(imgUrl => verifyImageUrl(imgUrl.replace(/\/images\/\w+\//i, '/images/xxl/')).catch(() => imgUrl));
	  case 'music.163.com':
		if (!/\/album.*\b(?:id)=(\d+)\b/i.test(url.href)) break;
		return globalXHR('https://music.163.com/api/album/' + RegExp.$1, { responseType: 'json' })
			.then(response => response.response.album.picUrl ?
				response.response.album.picUrl.replace(/\b(?:p[123])(?=\.music\.\d+\.net\b)/i, 'p4') : notFound);
	  case 'www.tidal.com': case 'tidal.com':
		if (!(/\/album\/(\d+)(?:\/|$)/i.test(url.pathname) && !/\b(?:albumId)=(\d+)\b/i.test(url.search))) break;
		return globalXHR('https://api.tidal.com/v1/albums/' + RegExp.$1 + '?countrycode=US&token=_DSTon1kC8pABnTw', {
		  responseType: 'json',
		}).then(response => response.response.cover ? 'https://resources.tidal.com/images/' + response.response.cover.replace(/-/g, '/') + '/1280x1280.jpg' : notFound);
	  case 'www.extrememusic.com': case 'extrememusic.com':
		if (!url.pathname.startsWith('/albums/')) break;
		return globalXHR(url).then(function(response) {
		  let meta = getFromMeta(response.document);
		  return meta ? meta.replace(/\/album\/\w+\//i, '/album/600/') : notFound;
		});
	  // movie-related
	  case 'www.imdb.com': case 'imdb.com':
		if (!['title/tt', 'name/nm'].some(cat => url.pathname.startsWith('/' + cat))) break;
		return globalXHR(url).then(function(response) {
		  const galleryDetector = /\/mediaindex(?:[\/\?].*)?$/i, imgStripper = /\._V\d+_[\w\,]*(?=\.)/;
		  if (!galleryDetector.test(response.finalUrl)) {
			let node = response.document.head.querySelector(':scope > script[type="application/ld+json"]');
			if (node != null) try {
			  let image = JSON.parse(node.text).image;
			  if (typeof image == 'string') return verifyImageUrl(image.replace(imgStripper, '')).catch(reason => notFound);
			} catch(e) { console.warn(e) }
			node = response.document.querySelector('meta[property="og:image"][content]');
			return node != null && !/\/imdb\w*_logo\./i.test(node.content) ?
			  node.content.replace(imgStripper, '') : notFound;
		  }
		  var titleId = /\/title\/(tt\d+)\//i.test(response.finalUrl) && RegExp.$1;
		  return titleId ? globalXHR(response.finalUrl.replace(galleryDetector, '/mediaviewer'), { responseType: 'text' }).then(function(response) {
			if (/\b(?:window\.IMDbMediaViewerInitialState)\s*=\s*(\{.*\});/.test(response.responseText)) try {
			  let allImages = eval('(' + RegExp.$1 + ')').mediaviewer.galleries[titleId].allImages;
			  if (allImages.length > 0) return allImages.map(image => image.src.replace(imgStripper, ''));
			} catch(e) { console.warn(e) }
			return notFound;
		  }) : Promise.reject('title id not found');
		});
	  case 'www.themoviedb.org': case 'themoviedb.org':
		if (!['movie', 'person'].some(cat => url.pathname.startsWith('/' + cat + '/'))) break;
		return globalXHR(url).then(function(response) {
		  var node = response.document.querySelector('meta[property="og:image"][content]');
		  return verifyImageUrl(node.content.replace(/\/p\/\w+\//i, '/p/original/')).catch(function(reason) {
			node = response.document.querySelector('div.image_content > img');
			return verifyImageUrl(node.dataset.src.replace(/\/p\/\w+\//i, '/p/original/'))
			  .catch(reason => verifyImageUrl(node.src.replace(/\/p\/\w+\//i, '/p/original/')))
			  .catch(reason => verifyImageUrl(dataset.src)).catch(reason => node.src);
		  }).catch(reason => notFound);
		});
	  case 'www.omdb.org': case 'omdb.org':
		if (!['movie', 'person'].some(cat => url.pathname.startsWith('/' + cat + '/'))) break;
		return globalXHR(url).then(function(response) {
		  var node = response.document.querySelector('meta[property="og:image"][content]');
		  return node != null ? verifyImageUrl(node.content) : notFound;
		});
	  case 'www.thetvdb.com': case 'thetvdb.com':
		if (!['movies', 'series', 'people'].some(cat => url.pathname.startsWith('/' + cat + '/'))) break;
		return globalXHR(url).then(response => verifyImageUrl(response.document.querySelector('img.img-responsive').src));
	  case 'www.rottentomatoes.com': case 'rottentomatoes.com':
		if (!['m', 'celebrity', 'tv'].some(cat => url.pathname.startsWith('/' + cat + '/'))) break;
		return globalXHR(url).then(function(response) {
// 		  if (/\b(?:context\.shell)\s*=\s*(\{.+?});/.test(response.responseText)) try {
// 			return JSON.parse(RegExp.$1).header.certifiedMedia.certifiedFreshMovieInTheater4.media.posterImg;
// 		  } catch(e) { console.warn(e) }
		  return verifyImageUrl(response.document.querySelector('meta[property="og:image"]').content);
		});
	  case 'www.bcdb.com': case 'bcdb.com':
		if (!['cartoon'].some(cat => url.pathname.startsWith('/' + cat + '/'))) break;
		return globalXHR(url).then(response =>
			verifyImageUrl(document.location.protocol.concat(response.document.querySelector('meta[property="og:image"]').content)));
	  case 'www.boxofficemojo.com': case 'boxofficemojo.com':
		if (!['releasegroup'].some(cat => url.pathname.startsWith('/' + cat + '/'))) break;
		return globalXHR(url).then(response => verifyImageUrl(response.document.querySelector('div.mojo-primary-image img').src));
	  case 'www.metacritic.com': case 'metacritic.com':
		return globalXHR(url).then(function(response) {
		  var image = response.document.querySelector('meta[property="og:image"]').content;
		  return verifyImageUrl(image.replace(/-\d+h(?=(?:\.\w+)?$)/, '')).catch(reason => image);
		});
	  case 'www.csfd.cz': case 'csfd.cz':
		if (!['film', 'tvurce'].some(cat => url.pathname.startsWith('/' + cat + '/'))) break;
		return globalXHR(url).then(function(response) {
		  const gallerySel = 'div.ct-general.photos > div.content > ul > li > div.photo';
		  if (response.document.querySelectorAll(gallerySel).length > 0) return new Promise(function(resolve, reject) {
			var urls = [], origin = new URL(response.finalUrl).origin;
			loadPage(response.finalUrl.replace(/\/strana-\d+(?=$|\/|\?)/, ''));

			function loadPage(url) {
			  GM_xmlhttpRequest({ method: 'GET', url: url,
				onload: function(response) {
				  if (response.status < 200 || response.status >= 400) return reject(defaultErrorHandler(response));
				  var dom = domParser.parseFromString(response.responseText, 'text/html');
				  Array.prototype.push.apply(urls, Array.from(dom.querySelectorAll(gallerySel))
					.map(div => /^(?:url)\s*\("?(.+?)"?\)$/i.test(div.style.backgroundImage) ?
						 'https:'.concat(RegExp.$1).replace(/\?.*$/, '') : null));
				  var nextPage = dom.querySelector('div.paginator > a.next[href]');
				  if (nextPage != null) loadPage(origin.concat(nextPage.pathname, nextPage.search)); else resolve(urls);
				},
				onerror: response => { reject(defaultErrorHandler(response)) },
				ontimeout: response => { reject(defaultTimeoutHandler(response)) },
			  });
			}
		  });
		  var img = ['img.film-poster', 'img.creator-photo', 'div.image > img']
		  	.reduce((acc, selector) => acc || response.document.querySelector(selector), null);
		  return img != null ? verifyImageUrl(img.src.replace(/\?.*$/, '')) : notFound;
		});
	  case 'www.fdb.cz': case 'fdb.cz':
		//if (!url.pathname.startsWith('/film/')) break;
		return globalXHR(url).then(function(response) {
		  var a = response.document.querySelector('a.boxPlakaty');
		  if (a == null) return Promise.reject('Invalid page structure');
		  a.hostname = 'www.fdb.cz';
		  return globalXHR(a.href).then(function(response) {
			var imgs = response.document.querySelectorAll('span#popup_plakaty > img');
			return imgs.length > 0 ? verifyImageUrl(imgs[0].src) : notFound;
		  });
		});
	  case 'www.caps-a-holic.com': case 'caps-a-holic.com':
		if (url.pathname != '/c.php') break;
		return globalXHR(url).then(function(response) {
		  function heightExtractor(n) {
			var node = response.document.querySelector('div.main > div.c_table > div[style]:nth-of-type(' + n + ')');
			if (node != null && /\b(\d{3,})\s?[x×]\s?(\d{3,})\b/.test(node.textContent)) return parseInt(RegExp.$2);
			console.warn(response.finalUrl, 'failed to get resolution (' + n + ')', node);
			return null;
		  }
		  const baseUrl = 'https://caps-a-holic.com/c_image.php?a=0&x=0&y=0&l=1';
		  return Array.from(response.document.querySelectorAll('div.main > div[style] > a > img.thumb')).map(function(img) {
			var query = new URLSearchParams(new URL(img.parentNode.href).search);
			return [
			  `${baseUrl}&s=${parseInt(query.get('s1'))}&max_height=${heightExtractor(2)}`,
			  `${baseUrl}&s=${parseInt(query.get('s2'))}&max_height=${heightExtractor(3)}`,
			];
		  });
		});
	  case 'www.screenshotcomparison.com': case 'screenshotcomparison.com':
		if (url.pathname.startsWith('/comparison/')) return globalXHR(url).then(function(response) {
		  const origin = new URL(response.finalUrl).origin;
		  return Array.from(response.document.querySelectorAll('div#img_nav li > a')).map(function(a) {
			return globalXHR(origin.concat(a.pathname), { responseType: 'text' }).then(response => [
			  /\b(?:images)\[1\]='(\S+?)'/.test(response.responseText) && RegExp.$1,
			  /\b(?:images)\[0\]='(\S+?)'/.test(response.responseText) && RegExp.$1,
			].map(src => origin.concat(src)));
		  });
		});
		break;
	  case 'www.dvdbeaver.com': case 'dvdbeaver.com':
		if (url.pathname.startsWith('/film')) return globalXHR(url).then(function(response) {
		  const origin = new URL(response.finalUrl).origin;
		  return Array.from(response.document.querySelectorAll('div[align="center"] > table > tbody > tr > td > a[target="_blank"] > img'))
		  	.map(img => origin.concat(img.parentNode.pathname));
		});
		break;
	}
	return globalXHR(url, { headers: { 'Referer': url.origin } }).then(function(response) {
	  if (url.pathname.startsWith('/album/')
		  && response.document.querySelector('div#tabbed-content-group > div.content-listing > div.pad-content-listing') != null)
		return new Chevereto(url.hostname).galleryResolver(url);
	  return getFromMeta(response.document) || notFound;
	});
  }));
}

function logFail(message) {
  var log = document.getElementById('ihh-console');
  if (log == null) {
	log = document.createElement('div');
	log.id = 'ihh-console';
	log.style = 'position: fixed; bottom: 20px; right: 20px; width: 64em; border: solid lightsalmon 4px;' +
	  ' background-color: antiquewhite; padding: 10px; opacity: 1;' +
	  ' transition: opacity 1000ms linear; -webkit-transition: opacity 1000ms linear;';
	document.body.append(log);
  } else if (log.hTimer) {
	clearTimeout(log.hTimer);
	log.style.opacity = 1;
  }
  var div = document.createElement('div');
  div.style = 'font: 600 9pt Verdana, sans-serif; color: red;';
  div.textContent = message;
  log.append(div);
  log.hTimer = setTimeout(function(node) {
	node.style.opacity = 0;
	node.hTimer = setTimeout(function(node) { node.remove() }, 1000, node);
  }, 30000, log);
}