Categories
Development

Simple Apify Puppeteer crawler

The crawler is to gather names, addresses, emails of the web urls.

const Apify = require('apify');
var total_data=[];
const regex_name = /[A-Z][a-z]+\s[A-Z][a-z]+(?=\.|,|\s|\!|\?)/gm
const regex_address = /stand:(<\/strong>)?\s+(\w+\s+\w+),?\s+(\w+\s+\w+)?/gm;
const regex_email = /(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))/i;


Apify.main(async () => {
    const requestQueue = await Apify.openRequestQueue('123');
    await requestQueue.addRequest(new Apify.Request({ url: 'https://www.freeletics.com/de/pages/imprint/' }));
    await requestQueue.addRequest(new Apify.Request({ url: 'https://di1ara.com/pages/impressum' }));
	console.log('\nStart PuppeteerCrawler\n');
    const crawler = new Apify.PuppeteerCrawler({
        requestQueue,
        handlePageFunction: async ({ request, page }) => {
            const title = await page.title();
            console.log(`Title of ${request.url}: ${title}`);
			const page_content = await page.content();
            console.log(`Page content size:`, page_content.length);
            let obj = { 'url' : request.url }; 
	 
			console.log('Names:');
			while ((m = regex_name.exec(page_content)) !== null) {
				// This is necessary to avoid infinite loops with zero-width matches
				if (m.index === regex_name.lastIndex) {
					regex_name.lastIndex++;
				}
				
				// The result can be accessed through the `m`-variable.
				m.forEach((match, groupIndex) => {
					console.log(`Found match, group ${groupIndex}: ${match}`);
					if (match !='undefined' ) { 
						obj['names'] +=  match + ', ';
					}
				}); 
				
				
			}	
			console.log('\nAddress:');
			while ((m = regex_address.exec(page_content)) !== null) {
				// This is necessary to avoid infinite loops with zero-width matches
				if (m.index === regex_address.lastIndex) {
					regex_address.lastIndex++;
				}
				
				// The result can be accessed through the `m`-variable.
				m.forEach((match, groupIndex) => {
					console.log(`Found match, group ${groupIndex}: ${match}`);
				});
				m[0] = m[0].includes('</strong>') ? m[0].split('</strong>')[1] : m[0];
				m[0] = m[0].replace('<', '');
				obj['address']= m[0] ?? '';
			}
			console.log('\Email:');
			while ((m = regex_email.exec(page_content)) !== null) {
				// This is necessary to avoid infinite loops with zero-width matches
				if (m.index === regex_email.lastIndex) {
					regex_email.lastIndex++;
				}
				
				// The result can be accessed through the `m`-variable.
				m.forEach((match, groupIndex) => {
					console.log(`Found match, group ${groupIndex}: ${match}`);
				}); 
				if (m[0]) 
				{
					obj['email'] = m[0];
					break;
				}
			}
			total_data.push(obj);
			console.log(obj);
        },
        maxRequestsPerCrawl: 2000000,
        maxConcurrency: 20,
    });

    await crawler.run();
	console.log('Total data:');
	console.log(total_data);
});
Categories
Development

Puppeteer Stealth to prevent detection

In the previous post we shared how to disguise Selenium Chrome automation against Fingerprint checks. In this post we share the Puppeteer-extra with Stealth plugin to do the same. The test results are available as html files and screenshots.