Refactored obfuscateBody() for performance to run single regex replacements on message body

Author: onlime

CHANGELOG.md

@@ -5,6 +5,7 @@
 ## [v1.2.3 (2025-06-16)](https://github.com/onlime/laravel-http-client-global-logger/compare/v1.2.2...v1.2.3)
 
 - [Security] Body key obfuscation (`obfuscate.body_keys` config) is now also applied to response body, both for JSON or form-styled content.
+- Refactored `obfuscateBody()` for performance to run single regex replacements on message body.
 
 ## [v1.2.2 (2025-06-16)](https://github.com/onlime/laravel-http-client-global-logger/compare/v1.2.1...v1.2.2)
 

src/Traits/ObfuscatesBody.php

@@ -16,21 +16,24 @@ protected function obfuscateBody(string $message): string
     {
         $replacement = config('http-client-global-logger.obfuscate.replacement');
 
-        foreach (config('http-client-global-logger.obfuscate.body_keys') as $key) {
-            $quoted = preg_quote($key, '/');
-            // JSON-style: "key":"value"
-            $message = preg_replace(
-                '/(?<="'.$quoted.'":")[^"]*(?=")/mU',
-                $replacement,
-                $message
-            );
-            // form-style: key=value (until & or end)
-            $message = preg_replace(
-                '/(?<=\b'. $quoted .'=)[^&]*(?=&|$)/',
-                $replacement,
-                $message
-            );
-        }
+        // Build regex pattern for keys to obfuscate
+        $keysPattern = implode('|', array_map(
+            fn (string $key) => preg_quote($key, '/'),
+            config('http-client-global-logger.obfuscate.body_keys')
+        ));
+
+        // JSON-style: "(key1|key2)": "someValue"
+        $message = preg_replace(
+            '/(?<="(?:' . $keysPattern . ')":")[^"]*(?=")/mU',
+            $replacement,
+            $message
+        );
+        // form-style: key1=someValue& or key2=someValue$
+        $message = preg_replace(
+            '/(?<=\b(?:'. $keysPattern .')=)[^&]*(?=&|$)/',
+            $replacement,
+            $message
+        );
 
         return $message;
     }