91 lines
3.6 KiB
JavaScript
91 lines
3.6 KiB
JavaScript
/***** Content JS for Chrome Extension: Tracking Proxy Helper *****/
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/*** Initialisation ***/
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let tpdm = { activeTabId: null, activeWindowId: null, extInit: false, tpl: { tpId: '', sessId: '', eventCount: 0 } };
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tpdm.data = tpdm.data || JSON.parse(JSON.stringify(tpdm.tpl));
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//console.log('content.js loaded');
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/*** Logic ***/
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// Function to inject javascript code into the Page DOM
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// --> Accessing window object see: https://silverbirder.github.io/en-US/blog/contents/chrome_extension_development_feedback/
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const injectScript = (filePath, id, tag) => {
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if (!document.getElementById(id)) {
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var node = document.getElementsByTagName(tag)[0];
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var script = document.createElement("script");
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script.setAttribute("type", "text/javascript");
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script.setAttribute("src", filePath);
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script.setAttribute("id", id);
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node.appendChild(script);
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}
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};
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// Listener to receive messages from the injected script
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window.addEventListener('message', function(event) {
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//console.log('Message received from injected script:', event);
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if (event.data.type === 'CHECK_TPT_RESULT') {
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//console.log('Message received from injected script:', event);
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if (event.data.chaChanged) { chrome.runtime.sendMessage({ type: 'CHECK_TPT', chaChanged:true, tpobj:event.data.tpobj }); }
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else { chrome.runtime.sendMessage({ type: 'CHECK_TPT', hasTPT: event.data.hasTPT, hasSessID: event.data.hasSessID, tpobj:event.data.tpobj }); }
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}
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if (event.data.type === 'TRACKING_PROXY_RESPONSE') {
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//console.log('Message received from injected TP script:', event);
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const eventData = event.data.details.eventData;
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const metaData = event.data.details.metaData;
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chrome.runtime.sendMessage({ type: 'TRACKING_PROXY_EVENT', details: { eventData:eventData, metaData:metaData } });
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}
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});
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// Listener for messages from the background script
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chrome.runtime.onMessage.addListener((message, sender, sendResponse) => {
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if (message.type === 'TRACKING_PROXY_REQUEST') {
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window.postMessage({ type: 'TRACKING_PROXY_REDIRECT', details: message.details }, '*');
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}
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});
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// Inject script on document load
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if (document.readyState === 'complete' || document.readyState === 'interactive') {
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injectScript(chrome.runtime.getURL("inject-listener.js"), "tp_dev_mode_script", "head");
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} else {
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document.addEventListener('DOMContentLoaded', function() {
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injectScript(chrome.runtime.getURL("inject-listener.js"), "tp_dev_mode_script", "head");
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});
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}
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chrome.storage.sync.get(['scriptContent', 'scriptUrl', 'scriptUrlIsRegex'], function(data) {
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const scriptContent = data.scriptContent || '';
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const scriptUrl = data.scriptUrl || '';
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const scriptUrlIsRegex = data.scriptUrlIsRegex || false;
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if (!scriptUrl || !scriptContent) {
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//console.log('No script URL or script content defined, no script injected');
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return;
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}
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let urlMatches;
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if (scriptUrlIsRegex) {
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const regex = new RegExp(scriptUrl);
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urlMatches = regex.test(window.location.href);
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} else {
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urlMatches = window.location.href.includes(scriptUrl);
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}
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if (urlMatches) {
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if (!document.getElementById('tp_user_script')) {
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//console.log(`Injecting script into URL: ${window.location.href}`);
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const script = document.createElement('script');
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script.src = chrome.runtime.getURL('inject-userscript.js');
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script.setAttribute("id", "tp_user_script");
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(document.head || document.documentElement).appendChild(script);
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script.onload = function() {
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window.postMessage({ type: 'INJECT_USER_SCRIPT', scriptContent: scriptContent }, '*');
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script.remove();
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};
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}
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} else {
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//console.log(`URL does not match, no script injected for URL ${window.location.href}`);
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}
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});
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// EOF
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