From 34a638542475c19c2e148e031c9551ae0355811b Mon Sep 17 00:00:00 2001
From: Kevin Franklin Kim <kevin.kim@bestbytes.com>
Date: Fri, 10 Jan 2025 17:44:44 +0100
Subject: [PATCH] fix: fix json parse errors

---
 .../template/googleconsentmodecheckdata.go    | 35 +++++++++++++------
 .../server/template/jsonrequestvaluedata.go   |  6 +++-
 2 files changed, 30 insertions(+), 11 deletions(-)

diff --git a/pkg/provider/googleconsent/server/template/googleconsentmodecheckdata.go b/pkg/provider/googleconsent/server/template/googleconsentmodecheckdata.go
index 501e37d..e12a503 100644
--- a/pkg/provider/googleconsent/server/template/googleconsentmodecheckdata.go
+++ b/pkg/provider/googleconsent/server/template/googleconsentmodecheckdata.go
@@ -50,15 +50,16 @@ const logToConsole = require('logToConsole');
 const getRequestBody = require('getRequestBody');
 const getCookieValues = require('getCookieValues');
 const getAllEventData = require('getAllEventData');
+const getRequestHeader = require('getRequestHeader');
 
 // --- config ---
 
+const eventData = getAllEventData();
 const consentType = data.consentType;
 
 // --- GA4 ---
 
-const eventData = getAllEventData();
-if (eventData['x-ga-gcs'] !== undefined) {
+if (eventData['x-ga-gcs']) {
   const gcs = eventData['x-ga-gcs'];
   switch (consentType) {
     case "ad_storage":
@@ -70,22 +71,36 @@ if (eventData['x-ga-gcs'] !== undefined) {
   }
 }
 
-// --- MPv2 ---
-
-const requestBody = JSON.parse(getRequestBody());
-
-if (requestBody._consent !== undefined) {
-  const consent = requestBody.consent;
+if (eventData['x-ga-gcd']) {
+  const gcd = eventData['x-ga-gcd'];
   switch (consentType) {
     case "ad_storage":
-      return (consent.ad_storage === "GRANTED") ? 'granted' : 'denied';
+      return (gcd.substring(2, 3) === "1") ? 'granted' : 'denied';
     case "analytics_storage":
-      return (consent.analytics_storage === "GRANTED") ? 'granted' : 'denied';
+      return (gcd.substring(3, 4) === "1") ? 'granted' : 'denied';
     default:
       return 'denied';
   }
 }
 
+// --- MPv2 ---
+
+let requestBody = getRequestBody();
+if (requestBody && getRequestHeader('content-type') === 'application/json') {
+  requestBody = JSON.parse(requestBody);
+  if (requestBody._consent) {
+    const consent = requestBody.consent;
+    switch (consentType) {
+      case "ad_storage":
+        return (consent.ad_storage === "GRANTED") ? 'granted' : 'denied';
+      case "analytics_storage":
+        return (consent.analytics_storage === "GRANTED") ? 'granted' : 'denied';
+      default:
+        return 'denied';
+    }
+  }
+}
+
 // --- Cookiebot ---
 
 const cookiebotCookie = getCookieValues('CookieConsent')[0];
diff --git a/pkg/tagmanager/server/template/jsonrequestvaluedata.go b/pkg/tagmanager/server/template/jsonrequestvaluedata.go
index 2d7c513..40ea681 100644
--- a/pkg/tagmanager/server/template/jsonrequestvaluedata.go
+++ b/pkg/tagmanager/server/template/jsonrequestvaluedata.go
@@ -39,10 +39,14 @@ ___TEMPLATE_PARAMETERS___
 
 ___SANDBOXED_JS_FOR_SERVER___
 
-// Enter your template code here.
 const JSON = require('JSON');
 const logToConsole = require('logToConsole');
 const getRequestBody = require('getRequestBody');
+const getRequestHeader = require('getRequestHeader');
+
+if (getRequestHeader('content-type') !== 'application/json') {
+  return null;
+}
 
 const requestBody = getRequestBody();
 if (requestBody === '') {