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-rw-r--r--source/infra/js/count.js269
1 files changed, 269 insertions, 0 deletions
diff --git a/source/infra/js/count.js b/source/infra/js/count.js
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+++ b/source/infra/js/count.js
@@ -0,0 +1,269 @@
+// GoatCounter: https://www.goatcounter.com
+// This file (and *only* this file) is released under the ISC license:
+// https://opensource.org/licenses/ISC
+;(function() {
+ 'use strict';
+
+ if (window.goatcounter && window.goatcounter.vars) // Compatibility with very old version; do not use.
+ window.goatcounter = window.goatcounter.vars
+ else
+ window.goatcounter = window.goatcounter || {}
+
+ // Load settings from data-goatcounter-settings.
+ var s = document.querySelector('script[data-goatcounter]')
+ if (s && s.dataset.goatcounterSettings) {
+ try { var set = JSON.parse(s.dataset.goatcounterSettings) }
+ catch (err) { console.error('invalid JSON in data-goatcounter-settings: ' + err) }
+ for (var k in set)
+ if (['no_onload', 'no_events', 'allow_local', 'allow_frame', 'path', 'title', 'referrer', 'event'].indexOf(k) > -1)
+ window.goatcounter[k] = set[k]
+ }
+
+ var enc = encodeURIComponent
+
+ // Get all data we're going to send off to the counter endpoint.
+ var get_data = function(vars) {
+ var data = {
+ p: (vars.path === undefined ? goatcounter.path : vars.path),
+ r: (vars.referrer === undefined ? goatcounter.referrer : vars.referrer),
+ t: (vars.title === undefined ? goatcounter.title : vars.title),
+ e: !!(vars.event || goatcounter.event),
+ s: [window.screen.width, window.screen.height, (window.devicePixelRatio || 1)],
+ b: is_bot(),
+ q: location.search,
+ }
+
+ var rcb, pcb, tcb // Save callbacks to apply later.
+ if (typeof(data.r) === 'function') rcb = data.r
+ if (typeof(data.t) === 'function') tcb = data.t
+ if (typeof(data.p) === 'function') pcb = data.p
+
+ if (is_empty(data.r)) data.r = document.referrer
+ if (is_empty(data.t)) data.t = document.title
+ if (is_empty(data.p)) data.p = get_path()
+
+ if (rcb) data.r = rcb(data.r)
+ if (tcb) data.t = tcb(data.t)
+ if (pcb) data.p = pcb(data.p)
+ return data
+ }
+
+ // Check if a value is "empty" for the purpose of get_data().
+ var is_empty = function(v) { return v === null || v === undefined || typeof(v) === 'function' }
+
+ // See if this looks like a bot; there is some additional filtering on the
+ // backend, but these properties can't be fetched from there.
+ var is_bot = function() {
+ // Headless browsers are probably a bot.
+ var w = window, d = document
+ if (w.callPhantom || w._phantom || w.phantom)
+ return 150
+ if (w.__nightmare)
+ return 151
+ if (d.__selenium_unwrapped || d.__webdriver_evaluate || d.__driver_evaluate)
+ return 152
+ if (navigator.webdriver)
+ return 153
+ return 0
+ }
+
+ // Object to urlencoded string, starting with a ?.
+ var urlencode = function(obj) {
+ var p = []
+ for (var k in obj)
+ if (obj[k] !== '' && obj[k] !== null && obj[k] !== undefined && obj[k] !== false)
+ p.push(enc(k) + '=' + enc(obj[k]))
+ return '?' + p.join('&')
+ }
+
+ // Show a warning in the console.
+ var warn = function(msg) {
+ if (console && 'warn' in console)
+ console.warn('goatcounter: ' + msg)
+ }
+
+ // Get the endpoint to send requests to.
+ var get_endpoint = function() {
+ var s = document.querySelector('script[data-goatcounter]')
+ if (s && s.dataset.goatcounter)
+ return s.dataset.goatcounter
+ return (goatcounter.endpoint || window.counter) // counter is for compat; don't use.
+ }
+
+ // Get current path.
+ var get_path = function() {
+ var loc = location,
+ c = document.querySelector('link[rel="canonical"][href]')
+ if (c) { // May be relative or point to different domain.
+ var a = document.createElement('a')
+ a.href = c.href
+ if (a.hostname.replace(/^www\./, '') === location.hostname.replace(/^www\./, ''))
+ loc = a
+ }
+ return (loc.pathname + loc.search) || '/'
+ }
+
+ // Run function after DOM is loaded.
+ var on_load = function(f) {
+ if (document.body === null)
+ document.addEventListener('DOMContentLoaded', function() { f() }, false)
+ else
+ f()
+ }
+
+ // Filter some requests that we (probably) don't want to count.
+ goatcounter.filter = function() {
+ if ('visibilityState' in document && document.visibilityState === 'prerender')
+ return 'visibilityState'
+ if (!goatcounter.allow_frame && location !== parent.location)
+ return 'frame'
+ if (!goatcounter.allow_local && location.hostname.match(/(localhost$|^127\.|^10\.|^172\.(1[6-9]|2[0-9]|3[0-1])\.|^192\.168\.|^0\.0\.0\.0$)/))
+ return 'localhost'
+ if (!goatcounter.allow_local && location.protocol === 'file:')
+ return 'localfile'
+ if (localStorage && localStorage.getItem('skipgc') === 't')
+ return 'disabled with #toggle-goatcounter'
+ return false
+ }
+
+ // Get URL to send to GoatCounter.
+ window.goatcounter.url = function(vars) {
+ var data = get_data(vars || {})
+ if (data.p === null) // null from user callback.
+ return
+ data.rnd = Math.random().toString(36).substr(2, 5) // Browsers don't always listen to Cache-Control.
+
+ var endpoint = get_endpoint()
+ if (!endpoint)
+ return warn('no endpoint found')
+
+ return endpoint + urlencode(data)
+ }
+
+ // Count a hit.
+ window.goatcounter.count = function(vars) {
+ var f = goatcounter.filter()
+ if (f)
+ return warn('not counting because of: ' + f)
+
+ var url = goatcounter.url(vars)
+ if (!url)
+ return warn('not counting because path callback returned null')
+
+ var img = document.createElement('img')
+ img.src = url
+ img.style.position = 'absolute' // Affect layout less.
+ img.style.bottom = '0px'
+ img.style.width = '1px'
+ img.style.height = '1px'
+ img.loading = 'eager'
+ img.setAttribute('alt', '')
+ img.setAttribute('aria-hidden', 'true')
+
+ var rm = function() { if (img && img.parentNode) img.parentNode.removeChild(img) }
+ img.addEventListener('load', rm, false)
+ document.body.appendChild(img)
+ }
+
+ // Get a query parameter.
+ window.goatcounter.get_query = function(name) {
+ var s = location.search.substr(1).split('&')
+ for (var i = 0; i < s.length; i++)
+ if (s[i].toLowerCase().indexOf(name.toLowerCase() + '=') === 0)
+ return s[i].substr(name.length + 1)
+ }
+
+ // Track click events.
+ window.goatcounter.bind_events = function() {
+ if (!document.querySelectorAll) // Just in case someone uses an ancient browser.
+ return
+
+ var send = function(elem) {
+ return function() {
+ goatcounter.count({
+ event: true,
+ path: (elem.dataset.goatcounterClick || elem.name || elem.id || ''),
+ title: (elem.dataset.goatcounterTitle || elem.title || (elem.innerHTML || '').substr(0, 200) || ''),
+ referrer: (elem.dataset.goatcounterReferrer || elem.dataset.goatcounterReferral || ''),
+ })
+ }
+ }
+
+ Array.prototype.slice.call(document.querySelectorAll("*[data-goatcounter-click]")).forEach(function(elem) {
+ if (elem.dataset.goatcounterBound)
+ return
+ var f = send(elem)
+ elem.addEventListener('click', f, false)
+ elem.addEventListener('auxclick', f, false) // Middle click.
+ elem.dataset.goatcounterBound = 'true'
+ })
+ }
+
+ // Add a "visitor counter" frame or image.
+ window.goatcounter.visit_count = function(opt) {
+ on_load(function() {
+ opt = opt || {}
+ opt.type = opt.type || 'html'
+ opt.append = opt.append || 'body'
+ opt.path = opt.path || get_path()
+ opt.attr = opt.attr || {width: '200', height: (opt.no_branding ? '60' : '80')}
+
+ opt.attr['src'] = get_endpoint() + 'er/' + enc(opt.path) + '.' + enc(opt.type) + '?'
+ if (opt.no_branding) opt.attr['src'] += '&no_branding=1'
+ if (opt.style) opt.attr['src'] += '&style=' + enc(opt.style)
+ if (opt.start) opt.attr['src'] += '&start=' + enc(opt.start)
+ if (opt.end) opt.attr['src'] += '&end=' + enc(opt.end)
+
+ var tag = {png: 'img', svg: 'img', html: 'iframe'}[opt.type]
+ if (!tag)
+ return warn('visit_count: unknown type: ' + opt.type)
+
+ if (opt.type === 'html') {
+ opt.attr['frameborder'] = '0'
+ opt.attr['scrolling'] = 'no'
+ }
+
+ var d = document.createElement(tag)
+ for (var k in opt.attr)
+ d.setAttribute(k, opt.attr[k])
+
+ var p = document.querySelector(opt.append)
+ if (!p)
+ return warn('visit_count: append not found: ' + opt.append)
+ p.appendChild(d)
+ })
+ }
+
+ // Make it easy to skip your own views.
+ if (location.hash === '#toggle-goatcounter') {
+ if (localStorage.getItem('skipgc') === 't') {
+ localStorage.removeItem('skipgc', 't')
+ alert('GoatCounter tracking is now ENABLED in this browser.')
+ }
+ else {
+ localStorage.setItem('skipgc', 't')
+ alert('GoatCounter tracking is now DISABLED in this browser until ' + location + ' is loaded again.')
+ }
+ }
+
+ if (!goatcounter.no_onload)
+ on_load(function() {
+ // 1. Page is visible, count request.
+ // 2. Page is not yet visible; wait until it switches to 'visible' and count.
+ // See #487
+ if (!('visibilityState' in document) || document.visibilityState === 'visible')
+ goatcounter.count()
+ else {
+ var f = function(e) {
+ if (document.visibilityState !== 'visible')
+ return
+ document.removeEventListener('visibilitychange', f)
+ goatcounter.count()
+ }
+ document.addEventListener('visibilitychange', f)
+ }
+
+ if (!goatcounter.no_events)
+ goatcounter.bind_events()
+ })
+})();
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-23 04:53:58 +0000