Bundle tracker lookup and config with extension scripts (#212)

Author: sammacbeth

.eslintrc

@@ -4,7 +4,9 @@
     "globals": {
         "$USER_PREFERENCES$": "readonly",
         "$USER_UNPROTECTED_DOMAINS$": "readonly",
-        "$CONTENT_SCOPE$": "readonly"
+        "$CONTENT_SCOPE$": "readonly",
+        "$TRACKER_LOOKUP$": "readonly",
+        "$BUNDLED_CONFIG$": "readonly"
     },
     "rules": {
         "indent": ["error", 4]

Sources/ContentScopeScripts/dist/contentScope.js

@@ -4313,59 +4313,14 @@
       }
   }
 
-  /* eslint-disable quote-props */
-  /* eslint-disable quotes */
-  /* eslint-disable indent */
-  /* eslint-disable eol-last */
-  /* eslint-disable no-trailing-spaces */
-  /* eslint-disable no-multiple-empty-lines */
-      const exceptions = [
-    {
-      "domain": "nespresso.com",
-      "reason": "Clicking 'Continue' after filling out details for account creation yields an error."
-    }
-  ];
-      const excludedCookieDomains = [
-    {
-      "domain": "accounts.google.com",
-      "reason": "On some Google sign-in flows, there is an error after entering username and proceeding: 'Your browser has cookies disabled. Make sure that your cookies are enabled and try again.'"
-    },
-    {
-      "domain": "pay.google.com",
-      "reason": "After sign-in for Google Pay flows, there is repeated flickering and a loading spinner, preventing the flow from proceeding."
-    },
-    {
-      "domain": "payments.google.com",
-      "reason": "After sign-in for Google Pay flows (after flickering is resolved), blocking this causes the loading spinner to spin indefinitely, and the payment flow cannot proceed."
-    },
-    {
-      "domain": "shutterfly.com",
-      "reason": "https://github.com/duckduckgo/privacy-configuration/issues/544"
-    }
-  ];
-
-  let protectionExempted = true;
-  const tabHostname = getTabHostname();
-  let tabExempted = true;
-
-  if (tabHostname != null) {
-      tabExempted = exceptions.some((exception) => {
-          return matchHostname(tabHostname, exception.domain)
-      });
-  }
-  const frameExempted = excludedCookieDomains.some((exception) => {
-      return matchHostname(globalThis.location.hostname, exception.domain)
-  });
-  protectionExempted = frameExempted || tabExempted;
-
   // Initial cookie policy pre init
   let cookiePolicy = {
       debug: false,
       isFrame: isBeingFramed(),
       isTracker: false,
-      shouldBlock: !protectionExempted,
+      shouldBlock: true,
       shouldBlockTrackerCookie: true,
-      shouldBlockNonTrackerCookie: true,
+      shouldBlockNonTrackerCookie: false,
       isThirdParty: isThirdParty(),
       policy: {
           threshold: 604800, // 7 days
@@ -4414,6 +4369,26 @@
       if (args.platform.name !== 'extension') {
           return
       }
+      if (args.documentOriginIsTracker) {
+          cookiePolicy.isTracker = true;
+      }
+      if (args.bundledConfig) {
+          // use the bundled config to get a best-effort at the policy, before the background sends the real one
+          const { exceptions, settings } = args.bundledConfig.features.cookie;
+          const tabHostname = getTabHostname();
+          let tabExempted = true;
+
+          if (tabHostname != null) {
+              tabExempted = exceptions.some((exception) => {
+                  return matchHostname(tabHostname, exception.domain)
+              });
+          }
+          const frameExempted = settings.excludedCookieDomains.some((exception) => {
+              return matchHostname(globalThis.location.hostname, exception.domain)
+          });
+          cookiePolicy.shouldBlock = !frameExempted && !tabExempted;
+          cookiePolicy.policy = settings.firstPartyCookiePolicy;
+      }
       trackerHosts.clear();
 
       // The cookie policy is injected into every frame immediately so that no cookie will