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推文扒取

扒取推文的插件

  1. // ==UserScript==
  2. // @name            推文扒取
  3. // @namespace       https://github.com/Cierra-Runis/getTweets
  4. // @version         1.2
  5. // @description     扒取推文的插件
  6. // @connect         raw.githubusercontent.com
  7. // @connect         github.com
  8. // @connect         cdn.jsdelivr.net
  9. // @author          https://github.com/Cierra-Runis
  10. // @match           https://twitter.com/*
  11. // @icon            https://www.google.com/s2/favicons?sz=64&domain=twitter.com
  12. // @grant           none
  13. // ==/UserScript==
  14.  
  15. window.onload = (function () {
  16.     'use strict';
  17.  
  18.     var list = [];
  19.     var times = 0;
  20.     setInterval(addButton, 1000);
  21.  
  22.     function addButton() {
  23.         var div = document.createElement('div');
  24.         div.style.cssText = "width: 25px;height: 25px;color: #ffffff;text-align: center;font-size: small;line-height: 25px;margin: 5px;cursor: pointer;display: flow-root;z-index: 1";
  25.         div.innerText = "下载";
  26.         div.onclick = function () {
  27.             if (confirm("要下载推文吗？")) {
  28.                 setInterval(getTweets, 5000);
  29.             }
  30.         }
  31.         if (document.querySelector('#react-root').lastChild.innerText == '下载') {
  32.             // console.log('button has existed');
  33.         } else {
  34.             document.querySelector('#react-root').appendChild(div);
  35.         }
  36.  
  37.     }
  38.  
  39.     function getTweets() {
  40.         var url = window.location.href;
  41.         var before = list.length;
  42.  
  43.         try {
  44.  
  45.             var blocks = document.evaluate('//*[@id="react-root"]/div[1]/div/div[2]/main/div/div/div/div[1]/div/div[3]/div/div/section/div/div', document).iterateNext().childNodes
  46.  
  47.             for (var i = 0; i < blocks.length; i++) {
  48.                 var div = blocks[i].querySelector('div>div>div>article>div>div');
  49.                 if (div == null) {
  50.                     // console.log('block is null');
  51.                 } else {
  52.                     try {
  53.                         var block = div.childNodes[1];
  54.                         if (block.childNodes[1].childElementCount != 3) {
  55.                             console.log('This is a block has not text');
  56.                             continue;
  57.                         } else {
  58.                             console.log('Has text!');
  59.                         }
  60.                         var href = block.getElementsByTagName("a")[0].href;
  61.                         if (href != url) {
  62.                             // console.log(href + "!=" + url);
  63.                             continue;
  64.                         } else {
  65.                             var textContent = block.childNodes[1].childNodes[1].innerText;
  66.                             var isExited = false;
  67.                             for (var j = 0; j < list.length; j++) {
  68.                                 if (list[j].content == textContent) {
  69.                                     // console.log('text (' + list[j].content + ') has existed!');
  70.                                     isExited = true;
  71.                                 }
  72.                             }
  73.                             if (!isExited) {
  74.                                 console.log('text hasn\'t existed, adding to list.');
  75.                                 list.push({ content: textContent });
  76.                             }
  77.                         }
  78.                     } catch (error) {
  79.                         // console.log('href isn\'t exist');
  80.                     }
  81.                 }
  82.                 // console.log(i + ". end");
  83.             }
  84.             // console.log('END');
  85.             var after = list.length;
  86.             if (after == before) {
  87.                 // console.log('No new text was add!!!');
  88.                 times++;
  89.             } else {
  90.                 // console.log('New text was Add.');
  91.                 times = 0;
  92.             }
  93.             if (times > 3) {
  94.                 var jsonStr = JSON.stringify(list);
  95.                 // console.log(jsonStr);
  96.                 createAndDownloadFile(url.substring(20) + ".json", jsonStr);
  97.                 window.location.href = "about:blank";
  98.                 window.close();
  99.             }
  100.             window.scrollTo(0, document.body.scrollHeight);
  101.         } catch (error) {
  102.             console.log('error');
  103.         }
  104.  
  105.     }
  106.  
  107.     function createAndDownloadFile(fileName, content) {
  108.         var aTag = document.createElement('a');
  109.         var blob = new Blob([content]);
  110.         aTag.download = fileName;
  111.         aTag.href = URL.createObjectURL(blob);
  112.         aTag.click();
  113.         URL.revokeObjectURL(blob);
  114.     }
  115.  
  116. })();