jarviscrawlercore/plugins/exportarticle/techcrunch.js

jarvis crawler core

const {mgrPlugins} = require('./pluginsmgr');
const log = require('../../src/log');

/**
 * ismine
 * @param {string} url - URL
 * @return {bool} ismine
 */
function ismine(url) {
  if (url.indexOf('https://techcrunch.com/') == 0) {
    return true;
  }

  return false;
}

/**
 * exportArticle
 * @param {object} page - page
 * @return {ExportArticleResult} result - result
 */
async function exportArticle(page) {
  const dom = await page.$eval('#tc-main-content', (element) => {
    return element.innerHTML;
  });

  await page.setContent(dom);

  let errret = undefined;
  const ret = await page
      .evaluate(async () => {
        const ret = {};
        ret.imgs = [];
        ret.paragraphs = [];

        window.waitimgs = 0;

        const objbody = getElement('body');
        if (objbody) {
          const objhead = document.createElement('div');
          objhead.className = 'article-head';

          objbody.appendChild(objhead);

          const objarticlebody = document.createElement('div');
          objarticlebody.className = 'article-body';

          objbody.appendChild(objarticlebody);

          const title = getElement('h1');
          if (title) {
            const objtitle = document.createElement('h1');
            objtitle.innerText = title.innerText;
            objhead.appendChild(objtitle);

            ret.title = objtitle.innerText;
          }

          const secondtitle = getElement('h2');
          if (secondtitle) {
            const objsecondtitle = document.createElement('h2');
            objsecondtitle.innerText = secondtitle.innerText;
            objhead.appendChild(objsecondtitle);

            ret.secondTitle = objsecondtitle.innerText;
          }

          const imghead = getElement('.article__featured-image');
          if (imghead) {
            ret.titleImage = await fetchImage(imghead.src);

            const curnode = document.createElement('p');
            curnode.style.cssText = 'text-align: center;';

            const curimg = document.createElement('img');
            curimg.src = imghead.src;

            curnode.appendChild(curimg);

            objhead.appendChild(curnode);
          }

          const author = getElement('.article__byline');
          if (author) {
            cura = author.getElementsByTagName('a');
            if (cura && cura.length > 0) {
              const objauthor = document.createElement('div');
              objauthor.className = 'article-author';
              objauthor.innerText = cura[0].innerText;
              objhead.appendChild(objauthor);

              ret.author = objauthor.innerText;
            }
          }

          const articletime = getElement('time');
          if (articletime) {
            const objarticletime = document.createElement('div');
            objarticletime.className = 'article-time';

            curtime = getElementAttributes(articletime, 'datetime');

            objarticletime.innerText = curtime;
            objhead.appendChild(objarticletime);

            ret.writeTime = objarticletime.innerText;
          }

          const articlenode = getElement('.article-content');
          if (articlenode) {
            for (let i = 0; i < articlenode.children.length; ++i) {
              if (
                articlenode.children[i].tagName != 'P' &&
              articlenode.children[i].tagName != 'DIV'
              ) {
                continue;
              }

              if (articlenode.children[i].tagName == 'P') {
                const curnode = document.createElement('p');

                curnode.innerText = articlenode.children[i].innerText;

                ret.paragraphs.push({pt: 1, text: curnode.innerText});

                objarticlebody.appendChild(curnode);
              } else {
                const curimgs = articlenode.children[i].getElementsByTagName(
                    'img'
                );
                if (curimgs.length > 0) {
                  ret.imgs.push(await fetchImage(curimgs[0].src));
                  ret.paragraphs.push({pt: 2, imgURL: curimgs[0].src});

                  const curnode = document.createElement('p');
                  curnode.style.cssText = 'text-align: center;';

                  const curimg = document.createElement('img');
                  curimg.onload = () => {
                    ret.imgs[ret.imgs.length - 1].width = curimg.width;
                    ret.imgs[ret.imgs.length - 1].height = curimg.height;
                  };
                  curimg.src = curimgs[0].src;

                  curnode.appendChild(curimg);

                  objarticlebody.appendChild(curnode);
                }

                const curp = articlenode.children[i].getElementsByTagName('p');
                for (let j = 0; j < curp.length; ++j) {
                  const curnode = document.createElement('p');

                  curnode.innerText = curp[j].innerText;

                  ret.paragraphs.push({pt: 5, text: curnode.innerText});

                  objarticlebody.appendChild(curnode);
                }
              }
            }
          }
        }

        // const lsttag = $('.column-link');
        // if (lsttag.length > 0) {
        //   ret.tags = [];

        //   for (let i = 0; i < lsttag.length; ++i) {
        //     ret.tags.push(lsttag[i].innerText);
        //   }
        // }

        clearArticleElement(objbody);

        ret.article = objbody.innerText;

        return ret;
      })
      .catch((err) => {
        log.error('techcrunch.article:exportArticle.evaluate', err);

        errret = err;
      });

  return {
    result: ret,
    err: errret,
  };
}

mgrPlugins.regExportArticle('techcrunch.article', ismine, exportArticle);