|
6642
|
1 // GoatCounter: https://www.goatcounter.com
|
|
|
2 // This file (and *only* this file) is released under the ISC license:
|
|
|
3 // https://opensource.org/licenses/ISC
|
|
|
4 ;(function() {
|
|
|
5 'use strict';
|
|
|
6
|
|
|
7 if (window.goatcounter && window.goatcounter.vars) // Compatibility with very old version; do not use.
|
|
|
8 window.goatcounter = window.goatcounter.vars
|
|
|
9 else
|
|
|
10 window.goatcounter = window.goatcounter || {}
|
|
|
11
|
|
|
12 // Load settings from data-goatcounter-settings.
|
|
|
13 var s = document.querySelector('script[data-goatcounter]')
|
|
|
14 if (s && s.dataset.goatcounterSettings) {
|
|
|
15 try { var set = JSON.parse(s.dataset.goatcounterSettings) }
|
|
|
16 catch (err) { console.error('invalid JSON in data-goatcounter-settings: ' + err) }
|
|
|
17 for (var k in set)
|
|
|
18 if (['no_onload', 'no_events', 'allow_local', 'allow_frame', 'path', 'title', 'referrer', 'event'].indexOf(k) > -1)
|
|
|
19 window.goatcounter[k] = set[k]
|
|
|
20 }
|
|
|
21
|
|
|
22 var enc = encodeURIComponent
|
|
|
23
|
|
|
24 // Get all data we're going to send off to the counter endpoint.
|
|
|
25 var get_data = function(vars) {
|
|
|
26 var data = {
|
|
|
27 p: (vars.path === undefined ? goatcounter.path : vars.path),
|
|
|
28 r: (vars.referrer === undefined ? goatcounter.referrer : vars.referrer),
|
|
|
29 t: (vars.title === undefined ? goatcounter.title : vars.title),
|
|
|
30 e: !!(vars.event || goatcounter.event),
|
|
|
31 s: [window.screen.width, window.screen.height, (window.devicePixelRatio || 1)],
|
|
|
32 b: is_bot(),
|
|
|
33 q: location.search,
|
|
|
34 }
|
|
|
35
|
|
|
36 var rcb, pcb, tcb // Save callbacks to apply later.
|
|
|
37 if (typeof(data.r) === 'function') rcb = data.r
|
|
|
38 if (typeof(data.t) === 'function') tcb = data.t
|
|
|
39 if (typeof(data.p) === 'function') pcb = data.p
|
|
|
40
|
|
|
41 if (is_empty(data.r)) data.r = document.referrer
|
|
|
42 if (is_empty(data.t)) data.t = document.title
|
|
|
43 if (is_empty(data.p)) data.p = get_path()
|
|
|
44
|
|
|
45 if (rcb) data.r = rcb(data.r)
|
|
|
46 if (tcb) data.t = tcb(data.t)
|
|
|
47 if (pcb) data.p = pcb(data.p)
|
|
|
48 return data
|
|
|
49 }
|
|
|
50
|
|
|
51 // Check if a value is "empty" for the purpose of get_data().
|
|
|
52 var is_empty = function(v) { return v === null || v === undefined || typeof(v) === 'function' }
|
|
|
53
|
|
|
54 // See if this looks like a bot; there is some additional filtering on the
|
|
|
55 // backend, but these properties can't be fetched from there.
|
|
|
56 var is_bot = function() {
|
|
|
57 // Headless browsers are probably a bot.
|
|
|
58 var w = window, d = document
|
|
|
59 if (w.callPhantom || w._phantom || w.phantom)
|
|
|
60 return 150
|
|
|
61 if (w.__nightmare)
|
|
|
62 return 151
|
|
|
63 if (d.__selenium_unwrapped || d.__webdriver_evaluate || d.__driver_evaluate)
|
|
|
64 return 152
|
|
|
65 if (navigator.webdriver)
|
|
|
66 return 153
|
|
|
67 return 0
|
|
|
68 }
|
|
|
69
|
|
|
70 // Object to urlencoded string, starting with a ?.
|
|
|
71 var urlencode = function(obj) {
|
|
|
72 var p = []
|
|
|
73 for (var k in obj)
|
|
|
74 if (obj[k] !== '' && obj[k] !== null && obj[k] !== undefined && obj[k] !== false)
|
|
|
75 p.push(enc(k) + '=' + enc(obj[k]))
|
|
|
76 return '?' + p.join('&')
|
|
|
77 }
|
|
|
78
|
|
|
79 // Show a warning in the console.
|
|
|
80 var warn = function(msg) {
|
|
|
81 if (console && 'warn' in console)
|
|
|
82 console.warn('goatcounter: ' + msg)
|
|
|
83 }
|
|
|
84
|
|
|
85 // Get the endpoint to send requests to.
|
|
|
86 var get_endpoint = function() {
|
|
|
87 var s = document.querySelector('script[data-goatcounter]')
|
|
|
88 if (s && s.dataset.goatcounter)
|
|
|
89 return s.dataset.goatcounter
|
|
|
90 return (goatcounter.endpoint || window.counter) // counter is for compat; don't use.
|
|
|
91 }
|
|
|
92
|
|
|
93 // Get current path.
|
|
|
94 var get_path = function() {
|
|
|
95 var loc = location,
|
|
|
96 c = document.querySelector('link[rel="canonical"][href]')
|
|
|
97 if (c) { // May be relative or point to different domain.
|
|
|
98 var a = document.createElement('a')
|
|
|
99 a.href = c.href
|
|
|
100 if (a.hostname.replace(/^www\./, '') === location.hostname.replace(/^www\./, ''))
|
|
|
101 loc = a
|
|
|
102 }
|
|
|
103 return (loc.pathname + loc.search) || '/'
|
|
|
104 }
|
|
|
105
|
|
|
106 // Run function after DOM is loaded.
|
|
|
107 var on_load = function(f) {
|
|
|
108 if (document.body === null)
|
|
|
109 document.addEventListener('DOMContentLoaded', function() { f() }, false)
|
|
|
110 else
|
|
|
111 f()
|
|
|
112 }
|
|
|
113
|
|
|
114 // Filter some requests that we (probably) don't want to count.
|
|
|
115 goatcounter.filter = function() {
|
|
|
116 if ('visibilityState' in document && document.visibilityState === 'prerender')
|
|
|
117 return 'visibilityState'
|
|
|
118 if (!goatcounter.allow_frame && location !== parent.location)
|
|
|
119 return 'frame'
|
|
|
120 if (!goatcounter.allow_local && location.hostname.match(/(localhost$|^127\.|^10\.|^172\.(1[6-9]|2[0-9]|3[0-1])\.|^192\.168\.|^0\.0\.0\.0$)/))
|
|
|
121 return 'localhost'
|
|
|
122 if (!goatcounter.allow_local && location.protocol === 'file:')
|
|
|
123 return 'localfile'
|
|
|
124 if (localStorage && localStorage.getItem('skipgc') === 't')
|
|
|
125 return 'disabled with #toggle-goatcounter'
|
|
|
126 return false
|
|
|
127 }
|
|
|
128
|
|
|
129 // Get URL to send to GoatCounter.
|
|
|
130 window.goatcounter.url = function(vars) {
|
|
|
131 var data = get_data(vars || {})
|
|
|
132 if (data.p === null) // null from user callback.
|
|
|
133 return
|
|
|
134 data.rnd = Math.random().toString(36).substr(2, 5) // Browsers don't always listen to Cache-Control.
|
|
|
135
|
|
|
136 var endpoint = get_endpoint()
|
|
|
137 if (!endpoint)
|
|
|
138 return warn('no endpoint found')
|
|
|
139
|
|
|
140 return endpoint + urlencode(data)
|
|
|
141 }
|
|
|
142
|
|
|
143 // Count a hit.
|
|
|
144 window.goatcounter.count = function(vars) {
|
|
|
145 var f = goatcounter.filter()
|
|
|
146 if (f)
|
|
|
147 return warn('not counting because of: ' + f)
|
|
|
148
|
|
|
149 var url = goatcounter.url(vars)
|
|
|
150 if (!url)
|
|
|
151 return warn('not counting because path callback returned null')
|
|
|
152
|
|
|
153 var img = document.createElement('img')
|
|
|
154 img.src = url
|
|
|
155 img.style.position = 'absolute' // Affect layout less.
|
|
|
156 img.style.bottom = '0px'
|
|
|
157 img.style.width = '1px'
|
|
|
158 img.style.height = '1px'
|
|
|
159 img.loading = 'eager'
|
|
|
160 img.setAttribute('alt', '')
|
|
|
161 img.setAttribute('aria-hidden', 'true')
|
|
|
162
|
|
|
163 var rm = function() { if (img && img.parentNode) img.parentNode.removeChild(img) }
|
|
|
164 img.addEventListener('load', rm, false)
|
|
|
165 document.body.appendChild(img)
|
|
|
166 }
|
|
|
167
|
|
|
168 // Get a query parameter.
|
|
|
169 window.goatcounter.get_query = function(name) {
|
|
|
170 var s = location.search.substr(1).split('&')
|
|
|
171 for (var i = 0; i < s.length; i++)
|
|
|
172 if (s[i].toLowerCase().indexOf(name.toLowerCase() + '=') === 0)
|
|
|
173 return s[i].substr(name.length + 1)
|
|
|
174 }
|
|
|
175
|
|
|
176 // Track click events.
|
|
|
177 window.goatcounter.bind_events = function() {
|
|
|
178 if (!document.querySelectorAll) // Just in case someone uses an ancient browser.
|
|
|
179 return
|
|
|
180
|
|
|
181 var send = function(elem) {
|
|
|
182 return function() {
|
|
|
183 goatcounter.count({
|
|
|
184 event: true,
|
|
|
185 path: (elem.dataset.goatcounterClick || elem.name || elem.id || ''),
|
|
|
186 title: (elem.dataset.goatcounterTitle || elem.title || (elem.innerHTML || '').substr(0, 200) || ''),
|
|
|
187 referrer: (elem.dataset.goatcounterReferrer || elem.dataset.goatcounterReferral || ''),
|
|
|
188 })
|
|
|
189 }
|
|
|
190 }
|
|
|
191
|
|
|
192 Array.prototype.slice.call(document.querySelectorAll("*[data-goatcounter-click]")).forEach(function(elem) {
|
|
|
193 if (elem.dataset.goatcounterBound)
|
|
|
194 return
|
|
|
195 var f = send(elem)
|
|
|
196 elem.addEventListener('click', f, false)
|
|
|
197 elem.addEventListener('auxclick', f, false) // Middle click.
|
|
|
198 elem.dataset.goatcounterBound = 'true'
|
|
|
199 })
|
|
|
200 }
|
|
|
201
|
|
|
202 // Add a "visitor counter" frame or image.
|
|
|
203 window.goatcounter.visit_count = function(opt) {
|
|
|
204 on_load(function() {
|
|
|
205 opt = opt || {}
|
|
|
206 opt.type = opt.type || 'html'
|
|
|
207 opt.append = opt.append || 'body'
|
|
|
208 opt.path = opt.path || get_path()
|
|
|
209 opt.attr = opt.attr || {width: '200', height: (opt.no_branding ? '60' : '80')}
|
|
|
210
|
|
|
211 opt.attr['src'] = get_endpoint() + 'er/' + enc(opt.path) + '.' + enc(opt.type) + '?'
|
|
|
212 if (opt.no_branding) opt.attr['src'] += '&no_branding=1'
|
|
|
213 if (opt.style) opt.attr['src'] += '&style=' + enc(opt.style)
|
|
|
214 if (opt.start) opt.attr['src'] += '&start=' + enc(opt.start)
|
|
|
215 if (opt.end) opt.attr['src'] += '&end=' + enc(opt.end)
|
|
|
216
|
|
|
217 var tag = {png: 'img', svg: 'img', html: 'iframe'}[opt.type]
|
|
|
218 if (!tag)
|
|
|
219 return warn('visit_count: unknown type: ' + opt.type)
|
|
|
220
|
|
|
221 if (opt.type === 'html') {
|
|
|
222 opt.attr['frameborder'] = '0'
|
|
|
223 opt.attr['scrolling'] = 'no'
|
|
|
224 }
|
|
|
225
|
|
|
226 var d = document.createElement(tag)
|
|
|
227 for (var k in opt.attr)
|
|
|
228 d.setAttribute(k, opt.attr[k])
|
|
|
229
|
|
|
230 var p = document.querySelector(opt.append)
|
|
|
231 if (!p)
|
|
|
232 return warn('visit_count: append not found: ' + opt.append)
|
|
|
233 p.appendChild(d)
|
|
|
234 })
|
|
|
235 }
|
|
|
236
|
|
|
237 // Make it easy to skip your own views.
|
|
|
238 if (location.hash === '#toggle-goatcounter') {
|
|
|
239 if (localStorage.getItem('skipgc') === 't') {
|
|
|
240 localStorage.removeItem('skipgc', 't')
|
|
|
241 alert('GoatCounter tracking is now ENABLED in this browser.')
|
|
|
242 }
|
|
|
243 else {
|
|
|
244 localStorage.setItem('skipgc', 't')
|
|
|
245 alert('GoatCounter tracking is now DISABLED in this browser until ' + location + ' is loaded again.')
|
|
|
246 }
|
|
|
247 }
|
|
|
248
|
|
|
249 if (!goatcounter.no_onload)
|
|
|
250 on_load(function() {
|
|
|
251 // 1. Page is visible, count request.
|
|
|
252 // 2. Page is not yet visible; wait until it switches to 'visible' and count.
|
|
|
253 // See #487
|
|
|
254 if (!('visibilityState' in document) || document.visibilityState === 'visible')
|
|
|
255 goatcounter.count()
|
|
|
256 else {
|
|
|
257 var f = function(e) {
|
|
|
258 if (document.visibilityState !== 'visible')
|
|
|
259 return
|
|
|
260 document.removeEventListener('visibilitychange', f)
|
|
|
261 goatcounter.count()
|
|
|
262 }
|
|
|
263 document.addEventListener('visibilitychange', f)
|
|
|
264 }
|
|
|
265
|
|
|
266 if (!goatcounter.no_events)
|
|
|
267 goatcounter.bind_events()
|
|
|
268 })
|
|
|
269 })();
|
