doc: remove GA tracking

The Google Analytics tracking wasn't wholly uncontroversial and hasn't
been used in practice. Remove it.

Refs: nodejs#6601
Fixes: nodejs#22652

Makefile

@@ -603,11 +603,6 @@ test-v8 test-v8-intl test-v8-benchmarks test-v8-all:
 		"$ git clone https://github.com/nodejs/node.git"
 endif
 
-# Google Analytics ID used for tracking API docs page views, empty
-# DOCS_ANALYTICS means no tracking scripts will be included in the
-# generated .html files
-DOCS_ANALYTICS ?=
-
 apidoc_dirs = out/doc out/doc/api out/doc/api/assets
 apidoc_sources = $(wildcard doc/api/*.md)
 apidocs_html = $(addprefix out/,$(apidoc_sources:.md=.html))
@@ -652,8 +647,7 @@ out/doc/api/assets/%: doc/api_assets/% out/doc/api/assets
 run-npm-ci = $(PWD)/$(NPM) ci
 
 gen-api = tools/doc/generate.js --node-version=$(FULLVERSION) \
-		--apilinks=out/apilinks.json \
-		--analytics=$(DOCS_ANALYTICS) $< --output-directory=out/doc/api
+		--apilinks=out/apilinks.json $< --output-directory=out/doc/api
 gen-apilink = tools/doc/apilinks.js $(wildcard lib/*.js) > $@
 
 out/apilinks.json: $(wildcard lib/*.js) tools/doc/apilinks.js

doc/template.html

@@ -54,6 +54,5 @@ <h2>Table of Contents</h2>
   <script src="assets/sh_main.js"></script>
   <script src="assets/sh_javascript.min.js"></script>
   <script>highlight(undefined, undefined, 'pre');</script>
-  <!-- __TRACKING__ -->
 </body>
 </html>

test/doctool/test-doctool-html.js

@@ -22,7 +22,7 @@ const remark2rehype = require('remark-rehype');
 const raw = require('rehype-raw');
 const htmlStringify = require('rehype-stringify');
 
-function toHTML({ input, filename, nodeVersion, analytics }, cb) {
+function toHTML({ input, filename, nodeVersion }, cb) {
   const content = unified()
     .use(markdown)
     .use(html.firstHeader)
@@ -35,7 +35,7 @@ function toHTML({ input, filename, nodeVersion, analytics }, cb) {
     .processSync(input);
 
   html.toHTML(
-    { input, content, filename, nodeVersion, analytics },
+    { input, content, filename, nodeVersion },
     cb
   );
 }
@@ -94,16 +94,14 @@ const testData = [
     file: fixtures.path('sample_document.md'),
     html: '<ol><li>fish</li><li>fish</li></ol>' +
       '<ul><li>Red fish</li><li>Blue fish</li></ul>',
-    analyticsId: 'UA-67020396-1'
   },
 ];
 
 const spaces = /\s/g;
 
-testData.forEach(({ file, html, analyticsId }) => {
+testData.forEach(({ file, html }) => {
   // Normalize expected data by stripping whitespace.
   const expected = html.replace(spaces, '');
-  const includeAnalytics = typeof analyticsId !== 'undefined';
 
   readFile(file, 'utf8', common.mustCall((err, input) => {
     assert.ifError(err);
@@ -112,7 +110,6 @@ testData.forEach(({ file, html, analyticsId }) => {
         input: input,
         filename: 'foo',
         nodeVersion: process.version,
-        analytics: analyticsId,
       },
       common.mustCall((err, output) => {
         assert.ifError(err);
@@ -121,18 +118,6 @@ testData.forEach(({ file, html, analyticsId }) => {
         // Assert that the input stripped of all whitespace contains the
         // expected markup.
         assert(actual.includes(expected));
-
-        // Testing the insertion of Google Analytics script when
-        // an analytics id is provided. Should not be present by default.
-        const scriptDomain = 'google-analytics.com';
-        if (includeAnalytics) {
-          assert(actual.includes(scriptDomain),
-                 `Google Analytics script was not present in "${actual}"`);
-        } else {
-          assert.strictEqual(actual.includes(scriptDomain), false,
-                             'Google Analytics script was present in ' +
-                             `"${actual}"`);
-        }
       })
     );
   }));

tools/doc/generate.js

@@ -38,7 +38,6 @@ const json = require('./json');
 const args = process.argv.slice(2);
 let filename = null;
 let nodeVersion = null;
-let analytics = null;
 let outputDir = null;
 let apilinks = {};
 
@@ -47,8 +46,6 @@ args.forEach(function(arg) {
     filename = arg;
   } else if (arg.startsWith('--node-version=')) {
     nodeVersion = arg.replace(/^--node-version=/, '');
-  } else if (arg.startsWith('--analytics=')) {
-    analytics = arg.replace(/^--analytics=/, '');
   } else if (arg.startsWith('--output-directory=')) {
     outputDir = arg.replace(/^--output-directory=/, '');
   } else if (arg.startsWith('--apilinks=')) {
@@ -85,7 +82,7 @@ fs.readFile(filename, 'utf8', (er, input) => {
   const basename = path.basename(filename, '.md');
 
   html.toHTML(
-    { input, content, filename, nodeVersion, analytics },
+    { input, content, filename, nodeVersion },
     (err, html) => {
       const target = path.join(outputDir, `${basename}.html`);
       if (err) throw err;

tools/doc/html.js

@@ -62,7 +62,7 @@ const gtocHTML = unified()
 const templatePath = path.join(docPath, 'template.html');
 const template = fs.readFileSync(templatePath, 'utf8');
 
-function toHTML({ input, content, filename, nodeVersion, analytics }, cb) {
+function toHTML({ input, content, filename, nodeVersion }, cb) {
   filename = path.basename(filename, '.md');
 
   const id = filename.replace(/\W+/g, '-');
@@ -77,30 +77,6 @@ function toHTML({ input, content, filename, nodeVersion, analytics }, cb) {
                      .replace('__EDIT_ON_GITHUB__', editOnGitHub(filename))
                      .replace('__CONTENT__', content.toString());
 
-  if (analytics) {
-    HTML = HTML.replace('<!-- __TRACKING__ -->', `
-    <script type="text/javascript">
-      // In all the browsers we'll get '1' or 'yes' (FF 32 or above) as a string
-      // value when enabling 'DO NOT TRACK'.
-      // For more:
-      // https://developer.mozilla.org/en-US/docs/Web/API/navigator/doNotTrack
-      function isDoNotTrack() {
-        var isDoNotTrackEnabled = navigator.doNotTrack || window.doNotTrack ||
-               navigator.msDoNotTrack;
-        return isDoNotTrackEnabled === '1' || isDoNotTrackEnabled === 'yes';
-      }
-      if (!isDoNotTrack()) {
-        (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');
-        ga('create', '${analytics}', 'auto');
-        ga('send', 'pageview');
-      }
-    </script>`);
-  }
-
   const docCreated = input.match(
     /<!--\s*introduced_in\s*=\s*v([0-9]+)\.([0-9]+)\.[0-9]+\s*-->/);
   if (docCreated) {

vcbuild.bat

@@ -450,7 +450,7 @@ robocopy /e doc\api %config%\doc\api
 robocopy /e doc\api_assets %config%\doc\api\assets
 
 for %%F in (%config%\doc\api\*.md) do (
-  %node_exe% tools\doc\generate.js --node-version=v%FULLVERSION% --analytics=%DOCS_ANALYTICS% %%F --output-directory=%%~dF%%~pF
+  %node_exe% tools\doc\generate.js --node-version=v%FULLVERSION% %%F --output-directory=%%~dF%%~pF
 )
 
 :run