414 lines
11 KiB
JavaScript
414 lines
11 KiB
JavaScript
const Scraper = require('../helpers/scraper');
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const cheerio = require('cheerio');
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const path = require('path');
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const jsonfile = require('jsonfile');
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const logger = require('log4js').getLogger('DK');
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logger.level = process.env.LOGGER_LEVEL || 'warn';
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class DKScrape extends Scraper {
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constructor(checkForLock = true) {
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super();
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this.id = 'DK';
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this.on('done', () => {
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this._done();
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});
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this.run = this._throttle(async () => {
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await this.__run();
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}, 5000);
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if (checkForLock)
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this._checkLock().then((l) => {
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if(l)
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this.run();
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});
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this.on('error', (err) => {
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logger.error('Error catcher!!', err);
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});
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}
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/**
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*
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* @returns {Promise<void>}
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*/
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async processNewPage() {
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// give the page a few seconds to settle
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await this._randomWait(this.page, 3, 5);
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const currentPage = await this.page.evaluate(() => document);
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const search = currentPage.location.search;
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switch (currentPage.location.pathname) {
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case '/en/Tal-og-fakta/Virksomheder-under-tilsyn/VUT-database.aspx':
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await this.handleStartPage();
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break;
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case '/en/Tal-og-fakta/Virksomheder-under-tilsyn/VUT-soegning.aspx':
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await this.handleSearchResults(search);
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break;
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case '/Tal-og-fakta/Virksomheder-under-tilsyn/VUT-vis-virksomhed.aspx':
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case '/da/Tal-og-fakta/Virksomheder-under-tilsyn/VUT-vis-virksomhed.aspx':
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case '/en/Tal-og-fakta/Virksomheder-under-tilsyn/VUT-vis-virksomhed.aspx':
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// these are all the same page, just in Danish, Danish and English
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this.processCoporation();
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break;
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default:
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await this._uploadError();
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throw new Error(`Unknown page: ${currentPage.location.href}`);
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}
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}
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/**
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*
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* @returns {Promise<void>}
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*/
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async handleStartPage() {
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if (this.mode === 0)
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await this._findAndClick('ul li a', 'Payment institutions', 'http://vut.finanstilsynet.dk/en/Tal-og-fakta/Virksomheder-under-tilsyn/VUT-soegning.aspx?aid=Payment+services+area&ctid=Payment+institutions');
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if (this.mode === 1)
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await this._findAndClick('ul li a', 'Electronic money institutions', 'http://vut.finanstilsynet.dk/en/Tal-og-fakta/Virksomheder-under-tilsyn/VUT-soegning.aspx?aid=Payment+services+area&ctid=Electronic+money+institutions');
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if (this.mode === 2) {
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logger.info('Processing complete');
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this.done();
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}
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}
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/**
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*
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* @returns {Promise<Error>}
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*/
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async processCoporation() {
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await this._randomWait(this.page, 3, 5);
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const body = await this.page.evaluate(() => document.documentElement.outerHTML);
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const $ = cheerio.load(body);
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const h2 = $('h2').eq(0).text();
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// Virksomhedsoplysninger
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// Company information
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if (h2 === 'Virksomhedsoplysninger') {
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logger.warn('Not in English, trying to switch language...');
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await this._findAndClick('#mainform > div.header > ul > li.ln > a');
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}
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else if (h2 === 'Company information') {
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const noWhiteSpace = /\W/g;
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let ssName;
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if (this.mode === 0)
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ssName = this.paymentServices.links[this.paymentServices.step].innerText.replace(noWhiteSpace, '_');
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else
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ssName = this.emoneyServices.links[this.emoneyServices.step].innerText.replace(noWhiteSpace, '_');
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await this.page._client.send('Page.setDownloadBehavior', { 'behavior': 'allow', 'downloadPath': this.path });
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this._makeScreenshotV2(this.page, `${this.path}/${ssName}`, null);
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logger.debug('Processing:', this.paymentServices.links[this.paymentServices.step]);
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const fields = await this.extractData(body);
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jsonfile.writeFileSync(`${this.path}/${ssName}.json`, fields);
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await this.downloadExcel();
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if (this.mode === 0)
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this.paymentServices.step += 1;
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else
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this.emoneyServices.step += 1;
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await this._randomWait(this.page, 10, 15);
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// This should take us back to the search result list
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await this._findAndClick('#divContentWidthScr li a', 'To search results');
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}
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else
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return new Error('I do not understand this page...');
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}
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/**
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*
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* @param $block
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* @returns {Promise<Array>}
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*/
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async processDataBlock($block) {
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const $ = cheerio.load($block);
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const noWhiteSpace = /\W/g;
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const a = $('tr').map((i, el) => {
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const head = $(el).find('td').first();
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const data = $(el).find('td').next();
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return [head.eq(-1).html().split('</div>')[1].replace(/\n/, '').trim(), data.text()];
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});
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const fields = [];
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for( let step = 0;step < a.length;step = step + 2)
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fields.push([a[step].replace(noWhiteSpace, '_'), a[step + 1]]);
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return fields;
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}
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/**
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*
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* @param body
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* @returns {Promise<{companyInformation: *[], presence: Array}>}
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*/
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async extractData(body) {
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const $ = cheerio.load(body);
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const vutDataContainer = $('.vut-data-container');
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const $basicInfo = vutDataContainer.find('#phmain_0_vut_pnl_basic_info table tbody').get();
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const $extendednInfo = vutDataContainer.find('#phmain_0_vut_pnl_extended_info table tbody').get();
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const $presenceInfo = vutDataContainer.find('#phmain_0_vut_pnl_tilstedevaerelser table tbody').get();
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let companyInformation = await this.processDataBlock($basicInfo);
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companyInformation = companyInformation.concat(await this.processDataBlock($extendednInfo));
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const presence = await this.processDataBlock($presenceInfo);
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return { companyInformation, presence };
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}
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/**
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*
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* @returns {Promise<void>}
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*/
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async downloadExcel() {
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await this.page._client.send('Page.setDownloadBehavior', { 'behavior': 'allow', 'downloadPath': this.path });
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logger.info('Saving excel into:', this.path);
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await this._findAndClick('#phmain_0_vut_link_button_excel');
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}
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/**
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*
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* @param search
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* @returns {Promise<void>}
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*/
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async handleSearchResults(search) {
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switch (search) {
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case '?aid=Payment+services+area&ctid=Payment+institutions':
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if (!this.paymentServices.done)
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await this.handlePaymentServices();
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else
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// Are we not done yet?
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// Restarting the page
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await this.page.goto(this.startPage);
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break;
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case '?aid=Payment+services+area&ctid=Electronic+money+institutions':
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if (!this.emoneyServices.done)
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await this.handleEmoneyServices();
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else
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// Are we not done yet?
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// Restarting the page
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await this.page.goto(this.startPage);
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break;
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case '?restoreSearch=1':
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if (this.mode === 0)
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if (this.paymentServices.items > 0 && !this.paymentServices.done)
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await this.handlePaymentServices();
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else {
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// Are we not done yet?
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// Restarting the page
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await this.page.goto(this.startPage);
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}
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if (this.mode === 1)
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if (this.emoneyServices.items > 0 && !this.emoneyServices.done)
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await this.handleEmoneyServices();
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break;
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default:
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// Menu fell through
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break;
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}
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}
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/**
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*
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* @returns {Promise<Array>}
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*/
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async extractLinks() {
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const returnObj = [];
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await this._randomWait(this.page, 3, 5);
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const rows = await this.page.$$('.search-further-data tr a');
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for (const item of rows) {
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const innerText = await this.page.evaluate(el => el.innerText, item);
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const href = await this.page.evaluate(el => el.href, item);
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const id = await this.page.evaluate(el => el.id, item);
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returnObj.push( {
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innerText,
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href,
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id
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});
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}
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return returnObj;
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}
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/**
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*
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* @returns {Promise<void>}
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*/
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async handleEmoneyServices() {
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await this._randomWait(this.page, 3, 5);
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await this._findAndClick('#phmain_0_Search1_allBtn', 'SHOW ALL');
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if (!this.emoneyServices.visited)
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if (this.emoneyServices.items === 0) {
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// first visit, Build the list
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this.emoneyServices.links = await this.extractLinks();
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this.emoneyServices.items = this.emoneyServices.links.length;
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this.emoneyServices.visited = true;
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}
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if (this.emoneyServices.visited)
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if (this.emoneyServices.step < this.emoneyServices.items) {
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const nextItem = this.emoneyServices.links[this.emoneyServices.step];
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// Not using an await here. We want to click and exit this page so we don't get tied up
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this._findAndClick(`#${nextItem.id}`, nextItem.innerText);
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}
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else {
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// EMoney services complete, move onto the next service.
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this.emoneyServices.done = true;
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this.mode = 2;
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await this.page.goto(this.startPage);
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}
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}
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/**
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*
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* @returns {Promise<void>}
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*/
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async handlePaymentServices() {
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await this._randomWait(this.page, 3, 5);
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await this._findAndClick('#phmain_0_Search1_allBtn', 'SHOW ALL');
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if (!this.paymentServices.visited)
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if (this.paymentServices.items === 0) {
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// first visit, Build the list
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this.paymentServices.links = await this.extractLinks();
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this.paymentServices.items = this.paymentServices.links.length;
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this.paymentServices.visited = true;
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}
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if (this.paymentServices.visited)
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if (this.paymentServices.step < this.paymentServices.items) {
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const nextItem = this.paymentServices.links[this.paymentServices.step];
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// Not using an await here. We want to click and exit this page so we don't get tied up
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this._findAndClick(`#${nextItem.id}`, nextItem.innerText);
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}
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else {
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// Payment services complete, move onto the next service.
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this.paymentServices.done = true;
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this.mode = 1;
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await this.page.goto(this.startPage);
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}
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}
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/**
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*
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* @returns {Promise<void>}
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*/
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async start() {
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super._start();
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try {
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// Financial Supervisory Authority
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// Government ministry
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// https://en.wikipedia.org/wiki/Financial_Supervisory_Authority_(Denmark)
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this.mode = 0;
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this.paymentServices = {
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'items': 0,
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'links': {
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},
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'step': 0,
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'visited': false,
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'done' : false
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};
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this.emoneyServices = {
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'items': 0,
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'links': {
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},
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'step': 0,
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'visited': false,
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'done' : false
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};
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this.startPage = 'http://vut.finanstilsynet.dk/en/Tal-og-fakta/Virksomheder-under-tilsyn/VUT-database.aspx';
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this.setPath(path.resolve(`${__dirname }/../artefacts/DK/FSA`));
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await this._doNonRepudiation(false, { 'sslWithPrefix': false }).catch((err) => {
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logger.error(err);
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});
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await this._initBrowser();
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this.page = await this.browser.newPage();
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this.page.on('domcontentloaded', () => {
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this.processNewPage().catch((err) => {
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logger.error('####', err);
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this.emit('done');
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});
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});
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await this.page.tracing.start({ 'path': `${this.path}/trace.json`, 'screenshots':true });
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await this.page.setViewport({ 'width': 1200, 'height': 800 });
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await this.page.goto(this.startPage).catch((err) => {
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logger.error(err);
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this._uploadError();
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});
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await this._randomWait(this.page, 3, 5);
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}
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catch(e) {
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throw Error(e);
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}
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}
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async __run() {
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await this.start();
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}
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}
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module.exports = DKScrape;
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