Add static getAuthSignature()

yidas · Aug 12, 2020 · d28776e · d28776e
1 parent 4db8869
commit d28776e
Showing 1 changed file with 16 additions and 2 deletions.
diff --git a/src/linePay/Client.php b/src/linePay/Client.php
@@ -123,6 +123,21 @@ function __construct($optParams)
         return $this;
     }
 
+    /**
+     * Get LINE Pay signature for authentication
+     *
+     * @param string $channelSecret
+     * @param string $uri
+     * @param string $queryOrBody
+     * @param string $nonce
+     * @return string
+     */
+    static public function getAuthSignature($channelSecret, $uri, $queryOrBody, $nonce)
+    {
+        $authMacText = $channelSecret . $uri . $queryOrBody . $nonce;
+        return base64_encode(hash_hmac('sha256', $authMacText, $channelSecret, true));
+    }
+
     /**
      * Get Request object
      *
@@ -174,8 +189,7 @@ protected function requestHandler($version, $method, $uri, $queryParams=null, $b
                 // V3 API Authentication
                 $authNonce = date('c') . uniqid('-'); // ISO 8601 date + UUID 1
                 $authParams = ($method=='GET' && $queryParams) ? $queryString : (($bodyParams) ? $body : null);
-                $authMacText = $this->channelSecret . $uri . $authParams . $authNonce;
-                $headers['X-LINE-Authorization'] = base64_encode(hash_hmac('sha256', $authMacText, $this->channelSecret, true));
+                $headers['X-LINE-Authorization'] = self::getAuthSignature($this->channelSecret, $uri, $authParams, $authNonce);
                 $headers['X-LINE-Authorization-Nonce'] = $authNonce;
                 break;
         }