Privacy 2024 - Implement CCPA link metric (#119)

* implement CCPA link metric

* formatting

* move ccpa_link to privacy.js

* Update dist/privacy.js

---------

Co-authored-by: Barry Pollard <barry_pollard@hotmail.com>
Co-authored-by: Max Ostapenko <1611259+max-ostapenko@users.noreply.github.com>

dist/privacy.js

@@ -321,7 +321,6 @@ return JSON.stringify({
       'geolocation.+watchPosition'
     ),
   },
-
   /**
    * List of hostnames with CNAME record
    */
@@ -341,5 +340,72 @@ return JSON.stringify({
     }
 
     return results;
+  })(),
+
+  ccpa_link: (() => {
+    const allowedCCPALinkPhrases = [
+      //https://petsymposium.org/popets/2022/popets-2022-0030.pdf page 612
+      'do not sell my personal information',
+      'do not sell my information',
+      'do not sell my info',
+      'do not sell my personal info',
+      'do not sell or share my personal information',
+      'do not sell or share my information',
+      'do not sell or share my info',
+      'do not sell or share my personal info',
+      //https://cppa.ca.gov/faq.html
+      'your privacy choices',
+      'your california privacy choices'
+    ]
+
+    // https://petsymposium.org/popets/2022/popets-2022-0030.pdf page 627
+    const CCPAExclusionPhrases = [
+      'terms',
+      'user agreement',
+      'service agreement',
+      'conditions of use',
+      'terms of usage',
+      'privacy notice',
+      'privacy policy',
+      'privacy & cookies',
+      'preferences',
+      'terms of sale',
+      'login',
+      'terms and conditions apply',
+      'accessibility',
+      'your data in search',
+      'shield',
+      'promo',
+      'campaign',
+      'deal',
+      'ad choice',
+      'january',
+      'february',
+      'march',
+      'april',
+      'may',
+      'june',
+      'july',
+      'august',
+      'september',
+      'october',
+      'november',
+      'december',
+      'archive',
+      'previous',
+      'versions',
+      'settings'
+    ]
+
+    const CCPALinks = Array.from(document.querySelectorAll('a')).filter(link => {
+      const text = link.textContent.toLowerCase()
+      return allowedCCPALinkPhrases.some(phrase => text.includes(phrase)) && !CCPAExclusionPhrases.some(phrase => text.includes(phrase))
+    })
+
+    return {
+      hasCCPALink: CCPALinks.length > 0,
+      CCPALinkPhrases: CCPALinks.map(link => link.textContent.trim().toLowerCase())
+    }
   })()
+
 });