97 lines
2.5 KiB
JavaScript
97 lines
2.5 KiB
JavaScript
/**
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* Ciphera Analytics - Privacy-First Tracking Script
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* Lightweight, no cookies, GDPR compliant
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*/
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(function() {
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'use strict';
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// * Respect Do Not Track
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if (navigator.doNotTrack === '1' || navigator.doNotTrack === 'yes' || navigator.msDoNotTrack === '1') {
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return;
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}
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// * Get domain from script tag
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const script = document.currentScript || document.querySelector('script[data-domain]');
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if (!script || !script.getAttribute('data-domain')) {
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return;
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}
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const domain = script.getAttribute('data-domain');
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const apiUrl = script.getAttribute('data-api') || 'https://analytics-api.ciphera.net';
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// * Memory cache for session ID (fallback if sessionStorage is unavailable)
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let cachedSessionId = null;
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// * Generate ephemeral session ID (not persistent)
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function getSessionId() {
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if (cachedSessionId) {
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return cachedSessionId;
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}
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const key = 'plausible_session_' + domain;
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try {
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cachedSessionId = sessionStorage.getItem(key);
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} catch (e) {
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// * Access denied or unavailable - ignore
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}
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if (!cachedSessionId) {
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cachedSessionId = Math.random().toString(36).substring(2, 15) + Math.random().toString(36).substring(2, 15);
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try {
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sessionStorage.setItem(key, cachedSessionId);
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} catch (e) {
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// * Storage full or unavailable - ignore, will use memory cache
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}
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}
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return cachedSessionId;
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}
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// * Track pageview
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function trackPageview() {
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const path = window.location.pathname + window.location.search;
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const referrer = document.referrer || '';
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const screen = {
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width: window.innerWidth || screen.width,
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height: window.innerHeight || screen.height,
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};
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const payload = {
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domain: domain,
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path: path,
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referrer: referrer,
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screen: screen,
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session_id: getSessionId(),
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};
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// * Send event
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fetch(apiUrl + '/api/v1/events', {
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method: 'POST',
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headers: {
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'Content-Type': 'application/json',
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},
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body: JSON.stringify(payload),
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keepalive: true,
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}).catch(() => {
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// * Silently fail - don't interrupt user experience
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});
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}
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// * Track initial pageview
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trackPageview();
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// * Track SPA navigation (history API)
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let lastUrl = location.href;
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new MutationObserver(() => {
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const url = location.href;
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if (url !== lastUrl) {
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lastUrl = url;
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trackPageview();
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}
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}).observe(document, { subtree: true, childList: true });
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// * Track popstate (browser back/forward)
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window.addEventListener('popstate', trackPageview);
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})();
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