grease monkey script to generate a rss feed from a leboncoin search

leboncoin

// ==UserScript==
// @name        Leboncoin RSS
// @namespace   https://gist.github.com/parisni/ece9addf65c9fb19daff6193f52c5b36
// @author      parisni
// @description A kind of RSS for LeBonCoin with your personnal search
// @include     https://www.leboncoin.fr/recherche*
// @require     https://cdnjs.cloudflare.com/ajax/libs/jquery/3.1.1/jquery.min.js
// @require     https://raw.githubusercontent.com/eligrey/FileSaver.js/master/dist/FileSaver.min.js
// @version     1.2
// @grant       GM_addStyle
// @grant       GM_setValue
// @grant       GM_getValue
// @grant       GM_xmlhttpRequest
// @grant window.close
// @grant window.focus
// ==/UserScript==
/*
	Have fun with the config variable !
*/

function buildRss(title, date, posts){
  return  `<feed xmlns="http://www.w3.org/2005/Atom" xml:lang="en">
<id>${title}</id>
<title>${title}</title>
<updated>${date}</updated>
<logo>https://www.leboncoin.fr/logo.svg</logo>
<subtitle>Leboncoin search feed</subtitle>
${buildRssItems(date, posts)}
</feed>`;
}

function buildRssItems(date, items) {
  return items
    .map((item) => {
      return `
        <entry>
          <id>${item.link}</id>
          <title>${item.title}</title>
          <link href="${item.link}" rel="alternate"/>
          <content type="xhtml"><div>${item.descr}</div></content>
          <updated>${date}</updated>
        </entry>`;
    })
    .join("");
}


$(function(){
  if (window.top !== window.self) { //prevent running in iframes
    return;
  }
   var lbcUrl = document.location.href
  GM_xmlhttpRequest({ //allow CORS
    method: "GET",
    url: lbcUrl,
    onload: function(data) {

        var content = []
        var res = document.querySelectorAll('a[data-qa-id="aditem_container"]')
        for (let i = 0; i < res.length; i++) {
            var title = res[i].computedName
            var link = res[i].href
            var descr = res[i].innerHTML
            var tmp = {'link': link, 'title': title, 'descr': descr}
           content.push(tmp)
           console.log(tmp)
        }
        if(content.length!==0){
            var blob = new Blob([buildRss(lbcUrl, new Date(Date.now()).toISOString(), content)], {type: "text/plain;charset=utf-8"});
            saveAs(blob, "atom.xml")
	}
    }
  });
});