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// Copyright 2017 the V8 project authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. (function linkClickerContentScript() { // time in ms let minInterval; let maxInterval; let pattern; let enabled; let timeoutId; // Initialize variables. chrome.runtime.sendMessage({type:'get'}, function(msg) { if (msg.type == 'update') updateFromMessage(msg); }); chrome.runtime.onMessage.addListener( function(msg, sender, sendResponse) { if (msg.type == 'update') updateFromMessage(msg); }); function findAllLinks() { let links = document.links; let results = new Set(); for (let i = 0; i < links.length; i++) { let href = links[i].href; if (!href) continue; if (href && href.match(pattern)) results.add(href); } return Array.from(results); } function updateFromMessage(msg) { console.log(msg); minInterval = Number(msg.minInterval) maxInterval = Number(msg.maxInterval); pattern = new RegExp(msg.pattern); enabled = Boolean(msg.enabled); if (enabled) schedule(); } function followLink() { if (!enabled) return; let links = findAllLinks(); if (links.length <= 5) { // navigate back if the page has not enough links window.history.back() console.log("navigate back"); } else { let link = links[Math.round(Math.random() * (links.length-1))]; console.log(link); window.location.href = link; // Schedule in case we just followed an anchor. schedule(); } } function schedule() { clearTimeout(timeoutId); let delta = maxInterval - minInterval; let duration = minInterval + (Math.random() * delta); console.log(duration); timeoutId = setTimeout(followLink, duration); } })();