mirror of
https://github.com/Crocmagnon/blog.git
synced 2024-12-04 21:43:36 +01:00
269 lines
8.8 KiB
JavaScript
269 lines
8.8 KiB
JavaScript
// 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()
|
|
})
|
|
})();
|