update new checksum version

paytm · May 28, 2020 · aae256f · aae256f
1 parent dd49cfe
commit aae256f
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Showing 10 changed files with 12 additions and 539 deletions.
diff --git a/checksum_v2/PaytmChecksum.php → PaytmChecksum.php b/checksum_v2/PaytmChecksum.php → PaytmChecksum.php
@@ -6,7 +6,7 @@
  *
  * @author     Lalit Kumar
  * @version    2.0
- * @link       https://developer.paytm.com/docs/checksum/
+ * @link       https://developer.paytm.com/docs/checksum/#php
  */
 
 class PaytmChecksum{
@@ -63,6 +63,9 @@ static public function verifySignature($params, $key, $checksum){
 		if(!is_array($params) && !is_string($params)){
 			throw new Exception("string or array expected, ".gettype($params)." given");
 		}
+		if(isset($params['CHECKSUMHASH'])){
+			unset($params['CHECKSUMHASH']);
+		}
 		if(is_array($params)){
 			$params = self::getStringByParams($params);
 		}		
@@ -96,7 +99,7 @@ static private function generateRandomString($length) {
 	static private function getStringByParams($params) {
 		ksort($params);		
 		$params = array_map(function ($value){
-			return ($value == null) ? "" : $value;
+			return ($value !== null && strtolower($value) !== "null") ? $value : "";
 	  	}, $params);
 		return implode("|", $params);
 	}

diff --git a/checksum_v1/README.md b/checksum_v1/README.md
diff --git a/checksum_v1/generateChecksum.php b/checksum_v1/generateChecksum.php
diff --git a/checksum_v1/lib/config_paytm.php b/checksum_v1/lib/config_paytm.php
diff --git a/checksum_v1/lib/encdec_paytm.php b/checksum_v1/lib/encdec_paytm.php
diff --git a/checksum_v1/verifyChecksum.php b/checksum_v1/verifyChecksum.php