107 lines
3.9 KiB
JavaScript
107 lines
3.9 KiB
JavaScript
var Q = require('q');
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var path = require('path');
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var debug = require('debug')('ylt:phantomaswrapper');
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var phantomas = require('phantomas');
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var PhantomasWrapper = function() {
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'use strict';
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/**
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* This is the phantomas launcher. It merges user chosen options into the default options
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*/
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this.execute = function(data) {
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var deferred = Q.defer();
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var task = data.params;
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var viewportOption = null;
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// Setting screen dimensions for desktop devices only.
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// Phone and tablet dimensions are dealt by Phantomas.
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if (task.options.device === 'desktop') {
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// Similar to an old non-retina Macbook Air 13"
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viewportOption = '1280x800x1';
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} else if (task.options.device === 'desktop-hd') {
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// Similar to a retina Macbook Pro 16"
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viewportOption = '1536x960x2';
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}
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var options = {
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// Cusomizable options
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'timeout': task.options.timeout || 120,
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'user-agent': (task.options.device === 'desktop') ? 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_6) AppleWebKit/537.36 (KHTML, like Gecko) YLT Chrome/85.0.4183.121 Safari/537.36' : null,
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'tablet': (task.options.device === 'tablet'),
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'phone': (task.options.device === 'phone'),
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'screenshot': task.options.screenshot || false,
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'viewport': viewportOption,
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'wait-for-network-idle': true,
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'cookie': task.options.cookie,
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'auth-user': task.options.authUser,
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'auth-pass': task.options.authPass,
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'block-domain': task.options.blockDomain,
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'allow-domain': task.options.allowDomain,
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'no-externals': task.options.noExternals,
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'local-storage': task.options.localStorage,
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'session-storage': task.options.sessionStorage,
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// Mandatory
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'analyze-css': true,
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'analyze-images': true,
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'ignoreSslErrors': true, // until Phantomas 2.1
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'ignore-ssl-errors': true // for Phantomas >= 2.2
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};
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// Proxy option can't be set to null or undefined...
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// this is why it's set now and not in the object above
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if (task.options.proxy) {
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options.proxy = task.options.proxy;
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}
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var debugCmd = 'DEBUG=* node node_modules/phantomas/bin/phantomas.js --url ' + task.url;
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Object.keys(options).forEach(function(key) {
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if (key !== 'wait-for-network-idle' && options[key] !== null) {
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debugCmd += ' --' + key + ' ' + options[key];
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}
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});
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debug('If you want to run Phantomas alone for debugging purpose, this is the command: %s', debugCmd);
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// It's time to launch the test!!!
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const promise = phantomas(task.url, options);
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// handle the promise
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promise.
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then(results => {
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var json = {
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generator: results.getGenerator(),
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url: results.getUrl(),
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metrics: results.getMetrics(),
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offenders: results.getAllOffenders()
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};
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// Special rules here
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if (task.options.device !== 'phone') {
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delete json.metrics.imagesExcessiveDensity;
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delete json.offenders.imagesExcessiveDensity;
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}
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deferred.resolve(json);
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}).
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catch(res => {
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console.error(res);
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deferred.reject('Phantomas failed: ' + res.message);
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});
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promise.on('milestone', function(event) {
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if (event === 'domReady' || event === 'domComplete') {
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deferred.notify(event);
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}
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});
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return deferred.promise;
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};
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};
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module.exports = new PhantomasWrapper(); |