From 3ea338e39e68d6f37080c3c9e447442b72d6c261 Mon Sep 17 00:00:00 2001
From: Tom Doe <41571384+ttntm@users.noreply.github.com>
Date: Tue, 28 Nov 2023 16:02:07 +0000
Subject: [PATCH] add: verifyGRC() (#4)

* add: verifyGRC helper fn

* changes from master | docs

* update: utils_full
---
 README.md        | 12 ++++++++++++
 include.txt      |  3 ++-
 src/verifyGRC.js | 25 +++++++++++++++++++++++++
 utils_full.js    | 29 ++++++++++++++++++++++++++++-
 4 files changed, 67 insertions(+), 2 deletions(-)
 create mode 100644 src/verifyGRC.js

diff --git a/README.md b/README.md
index c7a02f9..b019f18 100644
--- a/README.md
+++ b/README.md
@@ -364,6 +364,18 @@ Checks and object for existence and value.length > 1 of the specified keys.
 
 _Boolean_
 
+## [verifyGRC](./src/verifyGRC.js)
+
+Verify a Google ReCaptcha payload. See: https://developers.google.com/recaptcha/docs/verify#api-response
+
+### Params
+
+- `grcToken`: _string_ - A ReCaptcha token from the front end
+
+### Returns
+
+_Boolean_
+
 # License
 
 MIT; see [./LICENSE](./LICENSE)
diff --git a/include.txt b/include.txt
index abbb0b6..fb4bf57 100644
--- a/include.txt
+++ b/include.txt
@@ -15,4 +15,5 @@
 ./src/updateSalesforceObject.js
 ./src/upsertDataExtRow.js
 ./src/useApexREST.js
-./src/validateInput.js
\ No newline at end of file
+./src/validateInput.js
+./src/verifyGRC.js
\ No newline at end of file
diff --git a/src/verifyGRC.js b/src/verifyGRC.js
new file mode 100644
index 0000000..01b4424
--- /dev/null
+++ b/src/verifyGRC.js
@@ -0,0 +1,25 @@
+/**
+ * Verify a Google ReCaptcha payload.
+ * See: https://developers.google.com/recaptcha/docs/verify#api-response
+ * @param {string} grcToken A ReCaptcha token from the front end
+ * @returns {boolean}
+ */
+function verifyGRC(grcToken) {
+  if (!grcToken) {
+    return false
+  }
+
+  var grcPayload = 'secret=YOUR_SECRET' + '&response=' + grcToken
+  var target = 'https://www.google.com/recaptcha/api/siteverify'
+  
+  var res = HTTP.Post(target, 'application/x-www-form-urlencoded', grcPayload)
+  
+  if (res && res.StatusCode == 200) {
+    var parsed = Platform.Function.ParseJSON(res.Response[0])
+    return parsed && parsed.success
+      ? parsed.success
+      : false
+  } else {
+    return false
+  }
+}
\ No newline at end of file
diff --git a/utils_full.js b/utils_full.js
index f0fec4f..72313b4 100644
--- a/utils_full.js
+++ b/utils_full.js
@@ -199,7 +199,7 @@ function sfmcUtils() {
    * @returns {object | undefined}
    */
   function getToken(auth, mid) {
-    if (!auth || !auth - client_id || !auth.client_secret) {
+    if (!auth || !auth.client_id || !auth.client_secret) {
       return undefined
     }
 
@@ -569,6 +569,32 @@ function sfmcUtils() {
     return count <= 0
   }
 
+  /**
+   * Verify a Google ReCaptcha payload.
+   * See: https://developers.google.com/recaptcha/docs/verify#api-response
+   * @param {string} grcToken A ReCaptcha token from the front end
+   * @returns {boolean}
+   */
+  function verifyGRC(grcToken) {
+    if (!grcToken) {
+      return false
+    }
+
+    var grcPayload = 'secret=YOUR_SECRET' + '&response=' + grcToken
+    var target = 'https://www.google.com/recaptcha/api/siteverify'
+
+    var res = HTTP.Post(target, 'application/x-www-form-urlencoded', grcPayload)
+
+    if (res && res.StatusCode == 200) {
+      var parsed = Platform.Function.ParseJSON(res.Response[0])
+      return parsed && parsed.success
+        ? parsed.success
+        : false
+    } else {
+      return false
+    }
+  }
+
   return {
     createLogRow: createLogRow
     , createSalesforceObject: createSalesforceObject
@@ -588,5 +614,6 @@ function sfmcUtils() {
     , upsertDataExtRow: upsertDataExtRow
     , useApexREST: useApexREST
     , validateInput: validateInput
+    , verifyGRC: verifyGRC
   }
 }