+ // Initialize the third party request tracker.
+ boolean isThirdPartyRequest = false;
+
+ //
+ String currentDomain = "";
+
+ // Nobody is happy when comparing null strings.
+ if (!(formattedUrlString == null) && !(url == null)) {
+ // Get the domain strings to URIs.
+ Uri currentDomainUri = Uri.parse(formattedUrlString);
+ Uri requestDomainUri = Uri.parse(url);
+
+ // Get the domain host names.
+ String currentBaseDomain = currentDomainUri.getHost();
+ String requestBaseDomain = requestDomainUri.getHost();
+
+ // Update the current domain variable.
+ currentDomain = currentBaseDomain;
+
+ // Only compare the current base domain and the request base domain if neither is null.
+ if (!(currentBaseDomain == null) && !(requestBaseDomain == null)) {
+ // Determine the current base domain.
+ while (currentBaseDomain.indexOf(".", currentBaseDomain.indexOf(".") + 1) > 0) { // There is at least one subdomain.
+ // Remove the first subdomain.
+ currentBaseDomain = currentBaseDomain.substring(currentBaseDomain.indexOf(".") + 1);
+ }
+
+ // Determine the request base domain.
+ while (requestBaseDomain.indexOf(".", requestBaseDomain.indexOf(".") + 1) > 0) { // There is at least one subdomain.
+ // Remove the first subdomain.
+ requestBaseDomain = requestBaseDomain.substring(requestBaseDomain.indexOf(".") + 1);
+ }
+
+ // Update the third party request tracker.
+ isThirdPartyRequest = !currentBaseDomain.equals(requestBaseDomain);
+ }
+ }
+
+ // Block third-party requests if enabled.
+ if (isThirdPartyRequest && blockAllThirdPartyRequests) {
+ // Add the request to the log.
+ resourceRequests.add(new String[]{String.valueOf(REQUEST_THIRD_PARTY), url});
+
+ // Return an empty web resource response.
+ return emptyWebResourceResponse;
+ }
+