HTTP Unplugged

Black Belt

Finds useful links and displays a top bar with various of links from contact details to media documents, including Metalinks, Podcasts, Syndication Feeds (Atom, JSON & RSS), Torrents and Userscripts. Also supports Chat, Email, Geoposition, IPFS, Magnet links of eXact Topic (xt), VoIP, Wallet schemes and more.
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// ==UserScript== 
// @name        Black Belt 
// @author      Schimon Jehudah, Adv.
// @namespace   i2p.schimon.blackbelt
// @homepageURL https://greasyfork.org/en/scripts/466113-black-belt
// @supportURL  https://greasyfork.org/en/scripts/466113-black-belt/feedback
// @copyright   2023, Schimon Jehudah (http://schimon.i2p)
// @license     MIT; https://opensource.org/licenses/MIT
// @description Finds useful links and displays a top bar with various of links from contact details to media documents, including Metalinks, Podcasts, Syndication Feeds (Atom, JSON & RSS), Torrents and Userscripts.  Also supports Chat, Email, Geoposition, IPFS, Magnet links of eXact Topic (xt), VoIP, Wallet schemes and more.
// @include     *
// @version     23.05.22
// @run-at      document-end
// @noframes
// @icon        data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCAxMDAgMTAwIj48dGV4dCB5PSIuOWVtIiBmb250LXNpemU9IjkwIj7wn6WLPC90ZXh0Pjwvc3ZnPg==
// ==/UserScript==
 
// NOTE
// Robe icons (Sauna pack) created by Freepik
// https://www.flaticon.com/free-icon/robe_2520932
// https://www.flaticon.com/authors/freepik
// https://www.freepik.com/
 
// TODO
//
// 0) Bar like https://www.croxyproxy.com/
//
// 0) Decode string for magnet links
//    https://btdig.com/9fe6281eaf39f8bee656f27cacf48713c0608c3e/20-birds-&-animals-books-collection-pack-4
//
// 0) Tooltip
//    https://www.w3schools.com/howto/howto_css_tooltip.asp
//    or DIV on the middle or center of screen
//    https://web.archive.org/web/20050423235409/http://karmatics.com/aardvark/
//    https://css-tricks.com/quick-css-trick-how-to-center-an-object-exactly-in-the-center/
//
// 1) Brand: Access Bar, Alt Bar, Black Bar, Black Robe, Distribar, Distributed Bar, Distribution Bar, Easy Access Bar, Free Bar, Freenet Bar, Handler Bar, Harvest Bar, IETF Bar, IETF Black Bar, IETF ToolBar, Instant Media Bar, Media Bar, Power Bar, Power Download Bar, Reaping Bar, Simple Access Bar, Simple Bar, Super Bar
//
// 2) Recognize btih of 32 and convert it to 40
//
// 3) Check cache links for none 200 code
//    https://bookshelf.theanarchistlibrary.org/library/librarian-previous-announcements-en
//
// 4) FIXME feedx
//    http://freebase.be/db/software.rss.xml
//
// 5) Case insensitive (XPath)
//    String.prototype.toLowerCase()
//    See 'Magnet:' heperlink at https://ddosecrets.com/wiki/Rosatom
//    See getPathTo()
//
// 6) Fetch button (guess on demand) instead of auto-guess
//    Find file by Hash or ID (Hint: find duplicate chars/strings)
//
// 7) Display software for IPFS, GPS, Monero, RSS, SIP, Tribler, XMPP
//
// 8) Market diaspora*, Linux, Mastodon, ownCloud, RetroShare
//
// 9) TODO cancel *:after "open in new tab" https://cookidoo.thermomix.com/foundation/en-US
 
// 'pge,✉️,contact,Contact'
const types = {
  "feed" : {
    "name" : "📰 Follow", //索 //參
    "description" : "🗞️ Subscribe to news feed", //🔔
    "alternate" : [
      "atom",
      "rss",
      "rdf",
      "stream",
      "feed",
      "feed+json"],
    "extension" : [
      ".atom",
      ".atom.php",
      ".atom.xml",
      ".rss",
      ".rss.php",
      ".rss.xml",
      ".rdf",
      ".rdf.php",
      ".rdf.xml"],
    "path" : [
      "/feed",
      "/feed/",
      ".feed.atom",
      ".feed.rss",
      ".feed.rdf",
      ".feed.json"],
    "uri" : [
      "feed:",
      "news:"]
  },
  "podcast" : {
    "name" : "🎙️ Podcast",
    "description" : "🎧 Subscribe to podcast channel",
    "uri" : ["itpc:"]
  },
  "asc" : {
    "name" : "🗝️ Key", // Additional Sense Code
    "description" : "🔐 Encryption key",
    "extension" : [
      "asc",
      ".asc.txt",
      ".gpg",
      ".gpg.txt",
      ".pgp",
      ".pgp.txt"]
  },
  "mail" : {
    "name" : "✉️ Email",
    "description" : "📮 Send an email message",
    "uri" : ["mailto:"]
  },
  "card" : {
    "name" : "🪪 Card",
    "description" : "📇 Virtual contact file",
    "extension" : [".vcard", ".vcf"]
  },
  "geo" : {
    "name" : "📍️ Location",
    "description" : "🗺️ Geographic coordinations",
    "extension" : [
      ".gpx",
      ".geojson",
      ".kml",
      ".kmx"],
    "uri" : [
      "geo:",
      "waze:"]
  },
  "telephone" : {
    "name" : "☎️ Call",
    "description" : "📞️ Telephone number",
    "uri" : ["tel:"]
  },
  "voip" : {
    "name" : "📞️ VoIP",
    "description" : "📞️ Voice over IP",
    "uri" : ["sip:",
             "weixin:",
             "skype:"]
  },
  "chat-cabal" : {
    "name" : "🔽 Cabal", //︾ //🔽 //⧩ //➤
    "description" : "💬 Chat securely over the Cabal network",
    "uri" : ["cabal:"]
  },
  "chat-irc" : {
    "name" : "🗨️ IRC",
    "description" : "💬 Internet Relay Chat",
    "uri" : ["irc:", "ircs:"]
  },
  "chat-matrix" : {
    "name" : "#️ matrix", //#️⃣️ //＃ //⌗ //濫
    "description" : "⚠️ <b>WARNING:</b> Compromised messagin system. We recommend using <a href='https://xmpp.org/software/clients/'>Jabber/XMPP</a> instead, for better privacy",
    "uri" : ["element:", "matrix:"],
    "web" : ["://matrix.to/"]
  },
  "chat-xmpp" : {
    "name" : "💡️ Jabber",
    "description" : "💬 Chat securely over the XMPP network",
    "web" : [
     "://join.jabber.network/#",
     "://anonymous.cheogram.com",
     "://magicbroccoli.de/i/",
     "://webchat.disroot.org/#converse/room?jid=",
     "://xmpp.org/chat#converse/room?jid=",
     "://yaxim.org/chat/#converse/room?jid=",
     "://yax.im/i/"],
    // TODO handle ?join and ?message
    "uri" : ["xmpp:"]
  },
  "chat-te" : {
    "name" : "👁️‍🗨️️ Tencent",
    "description" : "⚠️ <b>WARNING:</b> This chat service logs your activities and conversations to its records. Use <a href='https://xmpp.org/software/clients/'>Jabber/XMPP</a> instead",
    "uri" : ["tencent:"]
  },
  "chat-vi" : {
    "name" : "👁️‍🗨️️ Viber",
    "description" : "⚠️ <b>WARNING:</b> This chat service logs your activities and conversations to its records. Use <a href='https://xmpp.org/software/clients/'>Jabber/XMPP</a> instead",
    "uri" : ["viber:"]
  },
  "chat-tg" : {
    "name" : "👁️‍🗨️️ Telegram",
    "description" : "⚠️ <b>WARNING:</b> This chat service logs your activities and conversations to its records. Use <a href='https://xmpp.org/software/clients/'>Jabber/XMPP</a> instead",
    "web" : [
     "://t.me",
     "://telegram.me"],
    "uri" : ["tg:"]
  },
  "chat-di" : {
    "name" : "👁️‍🗨️️ Discord",
    "description" : "⚠️ <b>WARNING:</b> This chat service logs your activities and conversations to its records. Use <a href='https://xmpp.org/software/clients/'>Jabber/XMPP</a> instead",
    "web" : [
     "://discord.com",
     "://discord.gg"]
  },
  "chat-wh" : {
    "name" : "👁️‍🗨️️ Whatsapp",
    "description" : "⚠️ <b>WARNING:</b> This chat service logs your activities and conversations to its records. Use <a href='https://xmpp.org/software/clients/'>Jabber/XMPP</a> instead",
    "web" : [
     "://chat.whatsapp.com",
     "://wa.me",
     "://api.whatsapp.com/send?phone=",
     "://web.whatsapp.com/send?phone="],
    "uri" : ["whatsapp:"]
  },
  "chat-fa" : {
    "name" : "👁️‍🗨️️ Facebook",
    "description" : "⚠️ <b>WARNING:</b> This chat service logs your activities and conversations to its records. Use <a href='https://xmpp.org/software/clients/'>Jabber/XMPP</a> instead",
    "web" : [
     "://m.me"]
  },
  "tracker" : {
    "name" : "📶 Tracker",
    "description" : "🧲 BitTorrent tracker",
    "uri" : ["udp:"]
  },
  "ftl-adc" : {
    "name" : "🫐️ DC", // Advanced Direct Connect
    "description" : "🧲 File transfer link",
    "urn" : ['tree:tiger'],
    "uri" : [
      "adc:",
      "adcs:",
      "dchub:"]
  },
  "ftl-bitprint" : {
    "name" : "🪩 Gnutella2",
    "description" : "🧲 File transfer link",
    "urn" : ["bitprint"]
  },
  "ftl-bittorrent" : {
    "name" : "🌊️ BitTorrent", //💧️ //⛲️
    "description" : "🧲 File transfer link",
    "urn" : ["btih", "btmh"]
  },
  "ftl-torrent" : {
    "name" : "📦️ Torrent", //🧧️ //🎁️
    "description" : "⛲️ BitTorrent metadata file",
    "extension" : [".torrent"]
  },
  "ftl-ed2k" : {
    "name" : "♈ eDonkey",
    "description" : "🧲 File transfer link", // eDonkey2000
    "uri" : ["ed2k:"],
    "urn" : [
      "aich",
      "ed2k",
      "ed2khash"]
  },
  "ftl-frostwire" : {
    "name" : "❄️ Frostwire", // LimeWire
    "description" : "🧲 File transfer link",
    "urn" : ["sha1"]
  },
  "ftl-kazzaa" : {
    "name" : "⏭️ Fasttrack",
    "description" : "🧲 File transfer link",
    "urn" : ["kzhash"]
  },
  "ftl-metalink" : {
    "name" : "♾️ Metalink",
    "description" : "Metalink file",
    "extension" : [".meta4", ".metalink"]
  },
  "ftl-shareaza" : {
    "name" : "❤️‍🔥️ Shareaza",
    "description" : "🧲 File transfer link",
    "urn" : ["md5"]
  },
  "wallet-monero" : {
    "name" : "🪙️ Monero",
    "description" : "👛 Cryptocurrency wallet",
    "uri" : ["monero:"]
  },
  "wallet-litecoin" : {
    "name" : "🪙️ Litecoin",
    "description" : "👛 Cryptocurrency wallet",
    "uri" : ["litecoin:"]
  },
  "wallet-ethereum" : {
    "name" : "🪙️ Ethereum",
    "description" : "👛 Cryptocurrency wallet",
    "uri" : ["ethereum:"]
  },
  "wallet-bitcoin" : {
    "name" : "🪙️ Bitcoin",
    "description" : "👛 Cryptocurrency wallet",
    "uri" : ["bitcoin:"]
  },
  "pkg-apk" : {
    "name" : "📥️ Package",
    "description" : "📦️ Android package",
    "condition" : ["android"],
    "extension" : ["apk"],
    "web" : [
      "://f-droid.org/packages/",
      "://apt.izzysoft.de/fdroid/index/apk/",
      "://play.google.com/store/apps/details?id=",
      "://appgallery.huawei.com/app/"]
  },
  "pkg-appstream" : {
    "name" : "🛍️ Package",
    "description" : "📦️ AppStream package",
    "condition" : ["linux"],
    "uri" : ["appstream:"]
  },
  "pkg-debian" : {
    "name" : "📥️ Package",
    "description" : "🐧️ Debian package",
    "condition" : ["debian", "ubuntu"],
    "extension" : [".deb"]
  },
  "pkg-fedora" : {
    "name" : "📥️ Package",
    "description" : "🐧️ Linux package",
    "condition" : ["fedora", "redhat"],
    "extension" : [".rpm"]
  },
  "pkg-flatpak" : {
    "name" : "🧊 Package",
    "description" : "📦️ Flatpak package",
    "condition" : ["linux"],
    "extension" : [".flatpakref"],
    "web" : ["://flathub.org/apps/details/"]
  },
  "ios-pkg" : {
    "name" : "📥️ Package", //🍎️
    "description" : "📦️ iOS package",
    "condition" : ["ios", "iphone", "ipad"],
    "web" : ["://apps.apple.com/app/",
             "://apps.apple.com/us/app/"]
  },
  "pkg-kaios" : {
    "name" : "📥️ Package",
    "description" : "📦️ Kai OS package",
    "condition" : ["kai"],
    "web" : ["://store.bananahackers.net/",
             "://www.kaiostech.com/store/apps/"]
  },
  "pkg-kde" : {
    "name" : "🐲️ Package",
    "description" : "📦️ KDE package",
    "condition" : ["linux", "react", "windows"],
    "web" : ["://store.kde.org/p/"]
  },
  "pkg-mac" : {
    "name" : "📥️ Package",
    "description" : "📦️ Macintosh package",
    "condition" : ["mac"],
    "extension" : [",dmg", ".pkg"],
    "urn" : [""]
  },
  "pkg-reactos" : {
    "name" : "📥️ Package",
    "description" : "📦️ React OS package",
    "condition" : ["windows", "react"],
    "extension" : [".exe", ".msi"],
    "web" : ["://apps.microsoft.com/store/detail/",
             "://www.microsoft.com/store/apps/"]
  },
  // TODO ask snapcraft for path /app/
  // TODO Dismiss path root /
  "pkg-snapcraft" : {
    "name" : "🪶️ Snapcraft", // 🛍️
    "description" : "📦️ Snapcraft package",
    "web" : ["://snapcraft.io/"]
  },
  "pkg-ubports" : {
    "name" : "📥️ Package",
    "description" : "📦️ Ubuntu Touch package",
    "condition" : ["ubuntu"],
    "uri" : ["openstore:"],
    "web" : ["://open-store.io/app/"]
  },
  "ext-usercss" : {
    "name" : "📜 Userstyle", //🐒
    "description" : "📜 User.CSS stylesheet",
    "extension" : [".user.css"]
  },
  "ext-userjs" : {
    "name" : "📜 Userscript", //🐒
    "description" : "📜 User.JS script",
    "extension" : [".user.js"]
  },
  "ext-chromium" : {
    "name" : "🧩 Extension",
    "description" : "🧩 Web browser extension",
    "condition" : ["brave", "chrome", "chromium", "vivaldi"],
    "extension" : [".crx", ".chromium.zip", ".chrome.zip"],
    "web" : ["://chrome.google.com/webstore/detail/"]
  },
  "ext-edge" : {
    "name" : "🧩 Extension",
    "description" : "🧩 Web browser extension",
    "condition" : ["edge"],
    "web" : ["://microsoftedge.microsoft.com/addons/detail/"]
  },
  "ext-falkon" : {
    "name" : "🧩 Extension", // 🦅️
    "description" : "🧩 Web browser extension",
    "condition" : ["falkon"],
    "web" : ["://store.falkon.org/p/"]
  },
  "ext-xpi" : {
    "name" : "🧩 Extension", //🐺️ //🦊️ //🦎️
    "description" : "🧩 Web browser extension",
    "condition" : ["firefox", "librewolf", "waterfox"],
    "extension" : [".xpi", ".firefox.zip"],
    "web" : ["://addons.mozilla.org"]
  },
  "ext-xul" : {
    "name" : "🧩 Extension", // 🌕
    "description" : "🧩 Web browser extension",
    "web" : ["://addons.palemoon.org",
             "://realityripple.com/Software/XUL/",
             "://realityripple.com/Software/Mozilla-Extensions/"]
  },
  "tor" : {
    "name" : "🧅️ Tor",
    "description" : "Enter the Tor system",
    "url" : [".onion", ".onion:"]
  },
  "ipfs" : {
    "name" : "💠 IPFS", //📁 //📂 //🗃️ //⚛️ //💎️ //🕸️
    "description" : "/🗃️ Interplanetary File System",
    "uri" : ["ipfs:", "ipns:", "dweb:"]
  },
  "i2p" : {
    "name" : "㊙️ i2p", //㊣
    "description" : "Enter the i2p system",
    "url" : [".i2p", ".i2p:"]
  }
};
 
const namespace = 'i2p-schimon-blackbelt';
 
 
const objectKeys = Object.keys(types);
 
(function() {
  let links = [], accept;
  for (let i = 0; i < objectKeys.length; i++) {
 
    let agent = types[objectKeys[i]].condition, accept = true;
    if (agent) {
      accept = false;
      for (let j = 0; j < agent.length; j++) {
        if (navigator.userAgent.toLowerCase().includes(agent[j])) {
          accept = true;
        }
      }
    }
 
    //if (reject) continue;
 
    let
      result,
      title = types[objectKeys[i]].name,
      descr = types[objectKeys[i]].description,
      array = types[objectKeys[i]];
 
    if (array.alternate) {
      result = extractRel(array.alternate);
    }
 
    if (!result && array.extension) {
      result = extractFile(array.extension);
    }
 
    if (!result && array.uri) {
      result = extractURI(array.uri);
    }
 
    if (!result && array.url) {
      result = extractURL(array.url);
    }
 
    if (!result && array.urn) {
      result = extractURN(array.urn);
    }
 
    if (!result && array.web) {
      result = extractWeb(array.web);
    }
 
    if (accept && result) {
      links.push(createLink(result, title, descr, objectKeys[i]));
    }
  }
 
  if (links.length) {
    buildBar(links);
  }
})();
 
function buildBar(links) {
  if (links.length) {
    let barElement = document.createElement(namespace);
    barElement.id = namespace + '-bar';
    barElement.style.all = 'unset';
    barElement.style.width = '100%';
    barElement.style.opacity = 0.5; // 0.75
    barElement.style.backgroundColor = '#000'; //'#2c3e50';
    barElement.style.color = '#eee';
    //barElement.style.setProperty("color", "#eee", "!important")
    barElement.style.fontVariant = 'small-caps';
    barElement.style.left = 0;
    barElement.style.right = 0;
    barElement.style.top = 0;
    barElement.style.zIndex = 10000000000;
    barElement.style.maxHeight = 'fit-content';
    barElement.style.padding = '6px'; //13px //15px //11px //9px //6px //3px //1px
    barElement.style.position = 'fixed';
    barElement.style.textAlign = 'center';
    barElement.style.direction = 'ltr';
    barElement.style.userSelect = 'none';
    barElement.onclick = () => { barElement.remove(); }
    barElement.onmouseover = () => { barElement.style.opacity = 0.9; }
    barElement.onmouseleave = () => { 
      document.querySelector('#' + namespace + 'info-square').remove();
    }
    barElement.onmouseout = () => {
      var secs = 20;
      function timeOut() {
        barElement.onmouseout = () => { secs = 20; }
        secs -= 1;
        if (secs == 17) {
          barElement.style.opacity = 0.3;
          setTimeout(timeOut, 1000);
        } else if (secs == 0) {
          barElement.remove();
          return;
        } else {
          setTimeout(timeOut, 1000);
        }
      } timeOut();
    }
    for (let i = 0; i < barElement.style.length; i++) {
      barElement.style.setProperty(
        barElement.style[i],
        barElement.style.getPropertyValue(barElement.style[i]),
        'important'
      );
    }
 
    document.body.append(barElement);
 
    //barElement.append(closeButton(barElement));
    links.forEach(link => barElement.append(link));
    //console.log("eles.forEach(ele => barElement.append(ele));")
    //console.log(eles)
 
    if (
      // NOTE Not working '#i2p.schimon.blackbelt.bittorrent'
      barElement.querySelector('*[id$=bittorrent]') &&
      !barElement.querySelector('*[id$=-torrent]')
      ) {
      // TODO Add after BitTorrent
      // TODO place this in the tooltip
      barElement.prepend(createLink(generateTorrent(barElement), '🎁️ Torrent', 'torrent'))
    }
 
    // Timer from https://stackoverflow.com/questions/27406765/hide-div-after-x-amount-of-seconds
 
    var secs = 33;
    function timeOut() {
      secs -= 1;
      if (secs == 0) {
        //barElement.style.display = 'none';
        barElement.style.opacity = 0.2;
        return;
      }
      else {
        setTimeout(timeOut, 1000);
      }
    }
    timeOut();
  }
}
 
 
 
function infoBox(node) {
  node.addEventListener ("mouseover", function() {
    if (this.title) {
      this.setAttribute('info', this.title);
      this.removeAttribute('title');
    }
    if (document.querySelector('#' + namespace + 'info-square')) {
      document.querySelector('#' + namespace + 'info-square').remove();
    }
    let infoSquare = document.createElement('info-square');
    infoSquare.id = namespace + 'info-square';
    infoSquare.innerHTML = this.getAttribute('info');
    //infoSquare.style.all = 'unset';
    infoSquare.style.fontVariant = 'none';
    infoSquare.style.position = 'fixed';
    infoSquare.style.margin = 'auto';
    //infoSquare.style.top = '15%';
    infoSquare.style.right = '25%';
    infoSquare.style.left = '25%';
    infoSquare.style.padding = '10px';
    infoSquare.style.color = '#000';
    infoSquare.style.background = 'WhiteSmoke';
    infoSquare.style.borderRadius = '5px';
    infoSquare.style.border = '3px solid#000';
    /*
    infoSquare.style.width = 50%;
    infoSquare.style.font-size = 70%;
    */
    infoSquare.style.fontFamily = 'system-ui';
    //infoSquare.style.justifyContent = 'center';
    //infoSquare.style.alignItems = 'center';
    infoSquare.style.textAlign = 'center';
    infoSquare.style.display = 'block';
    /* white-space = pre; in case we have html tags */
    //infoSquare.textContent = text;
    infoSquare.style.zIndex = 10000000000;
    document.querySelector('#' + namespace + '-bar').append(infoSquare);
  });
}
 
// NOTE TODO semi-recursive callback
// NOTE TODO typeof
function extractFile(array) {
  let i = 0;
 
  do {
    // FIXME Mainstream to support ends-with
    // fn:ends-with appears to be missing in some engines
    query = [
      '//a[contains(@href, "' + array[i] + '")]/@href',
      '//a[contains(@download, "' + array[i] + '")]/@download'];
//      '//a[ends-with(@href, "' + array[i] + '")]/@href'
//      '//a[ends-with(text(), "' + array[i] + '")]/@href'
    result = executeQuery(query, 'xpath');
    i = i + 1;
  } while (!result && i < array.length);
 
  if (result) {
  protocol = location.protocol
  hostname = location.hostname
  //console.log(result)
    switch (true) {
 
      case (result.startsWith('/')):
      result = protocol + '//' + hostname + result;
      break;
 
      case (!result.includes(':')):
      result = protocol + '//' + hostname + '/' + result;
      break;
 
      //case (result.startsWith('http')):
      //break;
    }
 
    //console.log(result)
    let url = new URL(result);
    let bol = url.pathname.endsWith(array[i-1]);
    if (bol) { return result; };
  }
}
 
 
function extractRel(array) {
  let i = 0;
 
  do {
    query = [
     // Also rel="feed". See https://miranda-ng.org/
      '//link[@rel="alternate"\
       and contains(@type, "' + array[i] + '")\
       ]/@href'];
    result = executeQuery(query, 'xpath');
    i = i + 1;
  } while (!result && i < array.length);
 
  if (result) { return result; };
}
 
 
function extractURI(array) {
  let i = 0;
 
  do {
    query = [
      '//a[starts-with(@href, "' + array[i] + '")\
      and not(starts-with(@href, "tg://msg_url?"))\
      and not(starts-with(@href, "mailto:?"))\
      and not(contains(@href, "/send?"))\
      ]/@href'];
    result = executeQuery(query, 'xpath');
    i = i + 1;
  } while (!result && i < array.length);
 
  if (result) {
    let url = new URL(result);
    let bol = url.protocol.match(array[i-1]);
    if (bol) { return result; };
  }
}
 
 
function extractURL(array) {
  let i = 0;
 
  do {
    query = [
      '//a[starts-with(@href, "http")\
       and contains(@href, "' + array[i] + '")\
       ]/@href'];
      // FIXME mainstream
      //'//a[starts-with(@href, "http") and ends-with(@href, "' + array[i] + '")]/@href'
    result = executeQuery(query, 'xpath');
    i = i + 1;
  } while (!result && i < array.length);
 
  if (result) {
    let url = new URL(result);
    let bol = url.hostname.endsWith(array[i-1]);
    if (bol) { return result };
    //if (!url) {
    //  url = url.host.contains(array[i] + ':');
    //}
  }
}
 
 
function extractURN(array) {
  let i = 0;
 
  do {
    query = [
      '//a[starts-with(@href, "magnet")\
       and contains(@href, "' + array[i] + '")\
       ]/@href'];
    result = executeQuery(query, 'xpath');
    i = i + 1;
  } while (!result && i < array.length);
 
  if (result) {
    let url = new URL(result);
    url.searchParams.delete('tr');
    result = url.protocol + url.search;
    result = decodeURIComponent(result);
    return result;
    //let bol = url.hostname.startsWith(array[i-1]);
    //if (bol) { createLink(result, type) };
  }
}
 
 
function extractWeb(array) {
  let i = 0;
 
  do {
    query = [
      '//a[starts-with(@href, "http")\
       and contains(@href, "' + array[i] + '")\
       and not(starts-with(@href, "https://wa.me/?text"))\
       and not(starts-with(@href, "https://t.me/share"))\
       and not(starts-with(@href, "https://telegram.me/share"))\
       and not(contains(@href, "com.github.android"))\
       and not(contains(@href, "1477376905"))\
       ]/@href'];
    result = executeQuery(query, 'xpath');
    i = i + 1;
  } while (!result && i < array.length);
 
  if (result) { return result; };
}
 
 
// TODO
// String.prototype.toLowerCase()
// href Magnet: (magnet:) is not detected, or
// Set document MIMEType to plain/text
function executeQuery(queries, method) {
 
  let i = 0;
  do {
    switch(method) {
      case 'css':
      result = document.querySelector(queries[i]);
      //if (result) {result = result.href};
      if (result) {return result.href};
      break;
 
      case 'xpath':
      // NOTE This may cause 404 error.
      // Use getPathTo()
      // https://stackoverflow.com/questions/2631820/how-do-i-ensure-saved-click-coordinates-can-be-reload-to-the-same-place-even-if/2631931#2631931
      /*
      xhtmlFile = new XMLSerializer().serializeToString(document).toLowerCase()
      //xhtmlFile = '<html>'+document.documentElement.innerHTML.toLowerCase()+'</html>'
      domParser = new DOMParser();
      xhtmlFile = domParser.parseFromString(xhtmlFile, 'text/html');
      result = document.evaluate(
        queries[i], xhtmlFile, null, XPathResult.STRING_TYPE);
      */
      result = document.evaluate(
        queries[i], document, null, XPathResult.STRING_TYPE);
      //if (result) {result = result.stringValue};
      if (result) {return result.stringValue};
    }
  } while (!result && i < queries.length);
}
 
function createLink(uri, title, info, id) {
  //if (type[4]) { 
  //let tip = document.createElement('spna');
  //tip.class = 'tooltip';
  //tip.append('type[4]');
  //}
 
  //type = type.split(' ');
  //sym = getUrnProperty(uri, 'sym');
  //net = getUrnProperty(uri, 'net');
 
  let aElement = document.createElement('a');
  aElement.id = namespace + '-' + id;
  aElement.textContent = title;
  aElement.href = uri;
  aElement.title = info;
  aElement.style.all = 'unset';
  aElement.style.color = '#eee';
  aElement.style.font = 'caption';
  aElement.style.fontFamily = 'system-ui';
  aElement.style.fontSize = '15px'; // 13px
  aElement.style.fontVariantCaps = 'all-small-caps';
  aElement.style.textDecoration = 'none';
  aElement.style.cursor = 'pointer';
 
  //aElement.style.fontWeight = 'bold';
  //aElement.style.padding = '3px 9px 3px 9px';
  //aElement.style.margin = '0 9px 0 9px';
  aElement.style.margin = '2% 9px 2% 9px';
  //aElement.style.background = 'black';
  //aElement.style.borderBottomLeftRadius = '9px';
  //aElement.style.borderBottomRightRadius = '9px';
 
  //aElement.style.forEach (style => style + '!important');
  for (let i = 0; i < aElement.style.length; i++) {
    aElement.style.setProperty(
      aElement.style[i],
      aElement.style.getPropertyValue(aElement.style[i]),
      'important'
    );
  }
 
  infoBox(aElement);
 
  //aElement.append(tip);
 
  //console.log(aElement)
  //console.log(aElements)
  return aElement;
}
 
// Torrent V1
// TODO handle compressed sha1 http://www.debath.co.uk/MakeAKey.html
// TODO convert base32 to hash
// 32/40 https://linuxtracker.org/?page=torrent-details&id=173a0f61ef92b158547937fa0c01e9dc704779f9
function generateTorrent(node) {
// TODO generate link else-if onclick
// 404 https://bookshelf.theanarchistlibrary.org/library/librarian-previous-announcements-en#toc1
  href = node.querySelector('*[id*=bittorrent]').href;
  let url = new URL(href);
  name = url.searchParams.get('dn');
  if (!name) {name = document.title};
  //xt = url.searchParams.get('xt');
  hash = url.searchParams.get('xt').slice(9);
  //if (ha.length === 40 && xt.startsWith('urn:btih'))
  if (hash.length === 40) {
    links = [
      'https://watercache.libertycorp.org/get/' + hash + '/' + name,
      'https://itorrents.org/torrent/' + hash + '.torrent?title=' + name,
      'https://firecache.libertycorp.org/get/' + hash + '/' + name,
      'http://fcache63sakpihd44kxdduy6kgpdhgejgp323wci435zwy6kiylcnfad.onion/get/' + hash + '/' + name,
      ];
    return links[1];
  }
}
 
function closeButton(barElement) {
 
 
  let spanElement = document.createElement('span');
  spanElement.textContent = 'X';
  spanElement.style.all = 'unset';
  spanElement.style.color = '#eee';
  spanElement.style.font = 'caption';
  spanElement.style.fontFamily = 'system-ui';
  spanElement.style.fontSize = '15px'; // 13px
  spanElement.style.fontVariantCaps = 'all-small-caps';
  spanElement.style.textDecoration = 'none';
 
  spanElement.style.fontWeight = 'bold';
  spanElement.style.padding = '3px 9px 3px 9px';
  //spanElement.style.margin = '0 9px 0 9px';
  spanElement.style.background = 'black';
  spanElement.style.borderBottomLeftRadius = '9px';
  spanElement.style.borderBottomRightRadius = '9px';
 
  //spanElement.style.forEach (style => style + '!important');
  for (let i = 0; i < spanElement.style.length; i++) {
    spanElement.style.setProperty(
      spanElement.style[i],
      spanElement.style.getPropertyValue(spanElement.style[i]),
      'important'
    );
  }
 
  spanElement.onclick = () => { barElement.remove(); }
 
  return spanElement;
 
}