Add settings for Piwik Analytics, for #233

Right now this is a very basic implementation and only tracks the first page view. Later implementations might extend this further.

Couldn't exactly test locally for some reason, so I am committing this to test via the requested deployment.

packages/rocketchat-lib/i18n/en.i18n.json

@@ -761,6 +761,12 @@
   "Pin_Message" : "Pin Message",
   "Pinned_a_message" : "Pinned a message:",
   "Pinned_Messages" : "Pinned Messages",
+  "PiwikAnalytics_url" : "Piwik Url",
+  "PiwikAnalytics_url_Description" : "The url where the Piwik resides, be sure to include the trialing slash. Example: //piwik.rocket.chat/",
+  "PiwikAnalytics_siteId" : "Piwik Site ID",
+  "PiwikAnalytics_siteId_Description" : "The site id to use for identifying this site. Example: 17",
+  "PiwikAnalytics_domains" : "Piwiki Domains",
+  "PiwikAnalytics_domains_Description" : "The domains which to track, separated by spaces. Example: *.rocket.chat",
   "Placeholder_for_email_or_username_login_field" : "Placeholder for email or username login field",
   "Placeholder_for_password_login_field" : "Placeholder for password login field",
   "Please_add_a_comment" : "Please add a comment",
@@ -1175,4 +1181,4 @@
   "Your_mail_was_sent_to_s" : "Your mail was sent to %s",
   "Your_password_is_wrong" : "Your password is wrong!",
   "Your_push_was_sent_to_s_devices" : "Your push was sent to %s devices"
-}
+}

packages/rocketchat-lib/server/startup/settings.coffee

@@ -92,6 +92,9 @@ RocketChat.settings.addGroup 'General', ->
 	@add 'Force_SSL', false, { type: 'boolean', public: true }
 	@add 'GoogleTagManager_id', '', { type: 'string', public: true }
 	@add 'GoogleSiteVerification_id', '', { type: 'string', public: false }
+	@add 'PiwikAnalytics_url', '', { type: 'string', public: false, i18nDescription: 'PiwikAnalytics_url_Description' }
+	@add 'PiwikAnalytics_siteId', '', { type: 'string', public: false, i18nDescription: 'PiwikAnalytics_siteId_Description' }
+	@add 'PiwikAnalytics_domains', '', { type: 'string', public: false, i18nDescription: 'PiwikAnalytics_domains_Description' }
 	@add 'Restart', 'restart_server', { type: 'action', actionText: 'Restart_the_server' }
 
 	@section 'UTF8', ->

packages/rocketchat-ui-master/master/main.coffee

@@ -52,6 +52,30 @@ Template.body.onRendered ->
 				j.src = '//www.googletagmanager.com/gtm.js?id=' + i + dl
 				f.parentNode.insertBefore j, f
 
+	Tracker.autorun (c) ->
+		w = window
+		p = '_paq'
+		url = RocketChat.settings.get 'PiwikAnalytics_url'
+		siteId = RocketChat.settings.get 'PiwikAnalytics_siteId'
+		domains = RocketChat.settings.get 'PiwikAnalytics_domains'
+		if Match.test(url, String) and url.trim() isnt '' and Match.test(siteId, String) and siteId.trim() isnt '' and Match.test(domains, String) and domains.trim() isnt ''
+			c.stop()
+			do (w, p, url, siteId, domains) ->
+				w[p] = w[p] || []
+				w[p].push(['setDomains', [domains.split(' ')]])
+				w[p].push(['trackPageView'])
+				w[p].push(['enableLinkTracking'])
+				w[p].push(['setTrackerUrl', url + 'piwik.php'])
+				w[p].push(['setSiteId', Number.parseInt(siteId)])
+				d = document
+				g = d.createElement('script')
+				s = d.getElementsByTagName('script')[0]
+				g.type = 'text/javascript'
+				g.async = true
+				g.defer = true
+				g.src = url + 'piwik.js'
+				s.parentNode.insertBefore(g, s)
+
 	Tracker.autorun (c) ->
 		if RocketChat.settings.get 'Meta_language'
 			c.stop()