Automatic URL Decoder

Декодирует все найденные на странице ссылки, похожие на "%D0%BF%D1%80%D0%B8%D0%B2%D0%B5%D1%82%20%D0%BC%D0%B8%D1%80", в удобочитаемое "привет мир"

当前为 2018-10-17 提交的版本,查看 最新版本

您需要先安装一个扩展,例如 篡改猴Greasemonkey暴力猴,之后才能安装此脚本。

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

您需要先安装一个扩展,例如 篡改猴暴力猴,之后才能安装此脚本。

您需要先安装一个扩展,例如 篡改猴Userscripts ,之后才能安装此脚本。

您需要先安装一款用户脚本管理器扩展,例如 Tampermonkey,才能安装此脚本。

您需要先安装用户脚本管理器扩展后才能安装此脚本。

(我已经安装了用户脚本管理器,让我安装!)

您需要先安装一款用户样式管理器扩展,比如 Stylus,才能安装此样式。

您需要先安装一款用户样式管理器扩展,比如 Stylus,才能安装此样式。

您需要先安装一款用户样式管理器扩展,比如 Stylus,才能安装此样式。

您需要先安装一款用户样式管理器扩展后才能安装此样式。

您需要先安装一款用户样式管理器扩展后才能安装此样式。

您需要先安装一款用户样式管理器扩展后才能安装此样式。

(我已经安装了用户样式管理器,让我安装!)

// ==UserScript==
// @name Automatic URL Decoder
// @namespace https://github.com/T1mL3arn
// @author T1mL3arn
// @description:ru Декодирует все найденные на странице ссылки, похожие на "%D0%BF%D1%80%D0%B8%D0%B2%D0%B5%D1%82%20%D0%BC%D0%B8%D1%80", в удобочитаемое "привет мир"
// @description:en It decodes all percent-encoded links on current page.
// @match *://*/*
// @exclude-match https://github.com/t1ml3arn-userscript-js/Automatic-URL-Decoder
// @exclude https://github.com/t1ml3arn-userscript-js/Automatic-URL-Decoder
// @version 2.1
// @run-at document-end
// @license GPLv3
// @supportURL https://github.com/T1mL3arn/Automatic-URL-Decoder/issues
// @homepageURL https://github.com/T1mL3arn/Automatic-URL-Decoder
// @description Декодирует все найденные на странице ссылки, похожие на "%D0%BF%D1%80%D0%B8%D0%B2%D0%B5%D1%82%20%D0%BC%D0%B8%D1%80", в удобочитаемое "привет мир"
// ==/UserScript==

(() => {
  
  const DECODED_ELT_CLASS = 'auto-url-decoder-s739';
  
  const underlineCss = `
  .${DECODED_ELT_CLASS} {
    border-bottom: 2px solid currentColor !important;
    margin-bottom: -2px !important;
  }`;
  const CSS_greenBackground = getDefaultBackgroundCSS('#deffc3');
  const CSS_redBackground = getDefaultBackgroundCSS('#fcd7d7');
  const CSS_blueBackground = getDefaultBackgroundCSS('#d7ebfc');

  function addStyle(css) {
    const id = 'auto-url-decoder-style-elt'; 
    const style = document.getElementById(id) || document.head.appendChild(document.createElement('style'));
    style.id = id;
    style.textContent = css;
  }

  function getDefaultBackgroundCSS(color) {
    return `
    .${DECODED_ELT_CLASS} {
      background-color: ${color} !important;
      padding: 2px 2px !important;
      margin: 0 -2px !important;
    }`;
  }

  function fixLinks(node) {
    if (node.nodeType === 3) {
      let content = node.textContent;
      if (content != '') {
        if (linkEregLocal.test(content) && percentEncodingEreg.test(content)) {
          if (decodedNodeCSS != null) replaceAndStyleLink(node);
          else {
            try {
              let decoded = content.replace(linkEreg, decodeURIComponent);
              if (decoded.length != content.length) node.textContent = decoded;
            } catch (e) {
              // URI mailformed, hust skip it
            }
          }
        }
      }
    } else if (node.nodeType === 1 && node.childNodes.length > 0 && isElementAllowed(node)) {
      node.childNodes.forEach(fixLinks);
    }
  }
  
  function isElementAllowed(elt) {
    return blockedTagsList.indexOf(elt.tagName) == -1 && !elt.matches(blockedClassesSelector);
  }

  function replaceAndStyleLink(node) {
    let match;
    let sibling = node;
    let content = node.textContent;
    while ((match = linkEreg.exec(content)) != null) {
      let fullMatch = match[0];
      let decoded;

      try {
        decoded = decodeURIComponent(fullMatch);
      } catch (e) {
        content = content.substring(linkEreg.lastIndex);
        linkEreg.lastIndex = 0;
        continue;
      }

      if (decoded.length != fullMatch.length) {
        let span = document.createElement('span');
        span.classList.add(DECODED_ELT_CLASS);

        if (storeOriginalURL) span.dataset.urlDecOriginalUrl = fullMatch;
  
        let range = document.createRange();
        range.setStart(sibling, linkEreg.lastIndex - match[0].length);
        range.setEnd(sibling, linkEreg.lastIndex);
        range.surroundContents(span);
        
        content = content.substring(linkEreg.lastIndex);
        span.textContent = decoded;
        linkEreg.lastIndex = 0;
        counter++;

        sibling = getNextTextSibling(span);
        if (sibling == null)  break;
      }
    }
  }
  
  function getNextTextSibling(node) {
    let next = node.nextSibling;
    while (next != null) {
      if (next.nodeType == 3) return next;
      else                    next = node.nextSibling;
    }
    return null;
  }

  let linkEreg = /(?:[a-z][a-z0-9-+.]+:\/\/|www\.).+?(?=\s|$)/gi;
  let linkEregLocal = /(?:[a-z][a-z0-9-+.]+:\/\/|www\.).+?(?=\s|$)/i;
  let percentEncodingEreg = /%[a-f0-9]{2}/i;
  let obsOptions = { childList: true, subtree: true };
  let blockedTagsList = 'NOSCRIPT OPTION SCRIPT STYLE TEXTAREA SVG CANVAS BUTTON SELECT TEMPLATE METER PROGRESS MATH TIME HEAD CODE PRE'.split(' ');
  
  ///NOTE Use 'foo' (or any other dummy class) in this selector
  // if you need to make this variable "empty"
  // It allows to avoid  SyntaxError: '' is not a valid selector
  let blockedClassesSelector = `${DECODED_ELT_CLASS}`.split(' ').map(class_ => `.${class_}`).join(', ');
  
  let counter = 0;
  let storeOriginalURL = false;

  // set one of style from above to enable 
  // custom style for fixed links
  let decodedNodeCSS = CSS_greenBackground;
  
  let obs = new MutationObserver((changes, obs) => {
    counter = 0;
    obs.disconnect();
    changes.forEach((change) => change.addedNodes.forEach((node) => fixLinks(node)) );
    obs.observe(document.body, obsOptions);
    //console.log('[ URL  Decoder ] Decoded: ', counter);
  });
  
  if (decodedNodeCSS != null) addStyle(decodedNodeCSS);
  
  counter = 0;
  fixLinks(document.body);
  //console.log('[ URL  Decoder ] Decoded: ', counter);
  obs.observe(document.body, obsOptions);
})();