修改

ThinkPHP/Library/Org/SumaPay/Client.class.php

@@ -25,7 +25,7 @@ class Client
 
     public function post($url, $params): string
     {
-        Log::write('REQUEST_URL: ' . json_encode($url));
+        Log::write('REQUEST_URL: ' . $url);
         Log::write('REQUEST_DATA: ' . json_encode($params));
         $curl = curl_init();
         if (stripos($url, 'https://') !== false){

ThinkPHP/Library/Org/SumaPay/Request/Request.class.php

@@ -40,6 +40,9 @@ class Request
             'merchantCode' => $this->merchantCode,
             'totalBizType' => $this->totalBizType,
         ], $this->params);
+        foreach ($params as $key => $value) {
+            $params[$key] = $this->strToEncoding($value, 'GBK');
+        }
         $params[Sign::SIGN_KEY] = Sign::generate($params, $this->signFields, $this->secretKey);
         return $params;
     }
@@ -47,4 +50,13 @@ class Request
     public function getUrl() {
         return Config::get('base_url') . $this->url;
     }
+
+    private function strToEncoding($str, $encoding) {
+        $encode = mb_detect_encoding($str, ['ASCII', 'GB2312', 'GBK', 'UTF-8']);
+        if($encode == $encoding){
+            return $str;
+        } else{
+            return mb_convert_encoding($str, $encoding, $encode);
+        }
+    }
 }

ThinkPHP/Library/Org/SumaPay/Sign.class.php

@@ -25,25 +25,13 @@ class Sign
     }
 
     private static function hmacMd5($signString, $secretKey) {
-        $data = self::strToEncoding($signString, 'GBK');
-        $key = self::strToEncoding($secretKey, 'GBK');
-     
         if (function_exists('hash_hmac')) {
-            return hash_hmac('md5', $data, $key);
-        }
-     
-        $key = (strlen($key) > 64) ? pack('H32', 'md5') : str_pad($key, 64, chr(0));
-        $ipad = substr($key,0, 64) ^ str_repeat(chr(0x36), 64);
-        $opad = substr($key,0, 64) ^ str_repeat(chr(0x5C), 64);
-        return md5($opad.pack('H32', md5($ipad.$data)));
+            return hash_hmac('md5', $signString, $secretKey);
         }
      
-    private static function strToEncoding($str, $encoding) {
-        $encode = mb_detect_encoding($str, ['ASCII', 'GB2312', 'GBK', 'UTF-8']);
-        if($encode == $encoding){
-            return $str;
-        } else{
-            return mb_convert_encoding($str, $encoding, $encode);
-        }
+        $secretKey = (strlen($secretKey) > 64) ? pack('H32', 'md5') : str_pad($secretKey, 64, chr(0));
+        $ipad = substr($secretKey,0, 64) ^ str_repeat(chr(0x36), 64);
+        $opad = substr($secretKey,0, 64) ^ str_repeat(chr(0x5C), 64);
+        return md5($opad.pack('H32', md5($ipad. $signString)));
     }
 }