FEATURE: Upgrade analytics.js to gtag.js (#10893)

Per Google, sites are encouraged to upgrade from `analytics.js` to `gtag.js` for Google Analytics tracking. This commit updates core Discourse to use the new `gtag.js` API Google is asking sites to use. This API has feature parity with `analytics.js` but does not use trackers.
This commit is contained in:
Justin DiRose 2020-10-13 11:24:06 -05:00 committed by GitHub
parent 46d1c91e1a
commit f4034226c2
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5 changed files with 22 additions and 18 deletions

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@ -1,21 +1,23 @@
// discourse-skip-module
/* eslint-disable */
// prettier-ignore
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
})(window,document,'script','//www.google-analytics.com/analytics.js','ga');
/* eslint-enable */
(function () {
const gaDataElement = document.getElementById("data-ga-universal-analytics");
const gaJson = JSON.parse(gaDataElement.dataset.json);
window.ga("create", gaDataElement.dataset.trackingCode, gaJson);
window.dataLayer = window.dataLayer || [];
function gtag() {
window.dataLayer.push(arguments);
}
gtag("js", new Date());
let autoLinkConfig = {};
if (gaDataElement.dataset.autoLinkDomains.length) {
const autoLinkDomains = gaDataElement.dataset.autoLinkDomains.split("|");
window.ga("require", "linker");
window.ga("linker:autoLink", autoLinkDomains);
autoLinkConfig = {
linker: {
accept_incoming: true,
domains: autoLinkDomains,
},
};
}
gtag("config", gaDataElement.dataset.trackingCode, autoLinkConfig);
})();

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@ -4,4 +4,6 @@
auto_link_domains: SiteSetting.ga_universal_auto_link_domains
} %>
<script async src="https://www.googletagmanager.com/gtag/js?id=<%= SiteSetting.ga_universal_tracking_code %>"></script>
<%= preload_script "google-universal-analytics" %>

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@ -1551,9 +1551,9 @@ en:
pending_users_reminder_delay: "Notify moderators if new users have been waiting for approval for longer than this many hours. Set to -1 to disable notifications."
persistent_sessions: "Users will remain logged in when the web browser is closed"
maximum_session_age: "User will remain logged in for n hours since last visit"
ga_universal_tracking_code: "Google Universal Analytics (analytics.js) tracking code ID, eg: UA-12345678-9; see <a href='https://google.com/analytics' target='_blank'>https://google.com/analytics</a>"
ga_universal_domain_name: "Google Universal Analytics (analytics.js) domain name, eg: mysite.com; see <a href='https://google.com/analytics' target='_blank'>https://google.com/analytics</a>"
ga_universal_auto_link_domains: "Enable Google Universal Analytics (analytics.js) cross-domain tracking. Outgoing links to these domains will have the client id added to them. See <a href='https://support.google.com/analytics/answer/1034342?hl=en' target='_blank'>Google's Cross-Domain Tracking guide.</a>"
ga_universal_tracking_code: "Google Universal Analytics (gtm.js) tracking code ID, eg: UA-12345678-9; see <a href='https://google.com/analytics' target='_blank'>https://google.com/analytics</a>"
ga_universal_domain_name: "Google Universal Analytics (gtm.js) domain name, eg: mysite.com; see <a href='https://google.com/analytics' target='_blank'>https://google.com/analytics</a>"
ga_universal_auto_link_domains: "Enable Google Universal Analytics (gtm.js) cross-domain tracking. Outgoing links to these domains will have the client id added to them. See <a href='https://support.google.com/analytics/answer/1034342?hl=en' target='_blank'>Google's Cross-Domain Tracking guide.</a>"
gtm_container_id: "Google Tag Manager container id. eg: GTM-ABCDEF. <br/>Note: Third-party scripts loaded by GTM may need to be allowlisted in 'content security policy script src'."
enable_escaped_fragments: "Fall back to Google's Ajax-Crawling API if no webcrawler is detected. See <a href='https://developers.google.com/webmasters/ajax-crawling/docs/learn-more' target='_blank'>https://developers.google.com/webmasters/ajax-crawling/docs/learn-more</a>"
moderators_manage_categories_and_groups: "Allow moderators to manage categories and groups"

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@ -56,7 +56,7 @@ class ContentSecurityPolicy
].tap do |sources|
sources << :report_sample if SiteSetting.content_security_policy_collect_reports
sources << :unsafe_eval if Rails.env.development? # TODO remove this once we have proper source maps in dev
sources << 'https://www.google-analytics.com/analytics.js' if SiteSetting.ga_universal_tracking_code.present?
sources << 'https://www.googletagmanager.com/gtag/js' if SiteSetting.ga_universal_tracking_code.present?
sources << 'https://www.googletagmanager.com/gtm.js' if SiteSetting.gtm_container_id.present?
end
end

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@ -74,7 +74,7 @@ describe ContentSecurityPolicy do
SiteSetting.gtm_container_id = 'GTM-ABCDEF'
script_srcs = parse(policy)['script-src']
expect(script_srcs).to include('https://www.google-analytics.com/analytics.js')
expect(script_srcs).to include('https://www.googletagmanager.com/gtag/js')
expect(script_srcs).to include('https://www.googletagmanager.com/gtm.js')
end