fix: low case compare on punycode

lib/Punycode.php

@@ -87,7 +87,7 @@ class Punycode {
         $length = strlen($output);
         if ($length > 255) {
             $this->errFlag = true;
-            $this->errMsg = 'A full domain name is limited to 255 octets (including the separators), ' . $length . 'given.';
+            $this->errMsg = 'A full domain name is limited to 255 octets (including the separators), ' . $length . ' given.';
         }
 
         return $output;

models/punycode.php

@@ -29,7 +29,7 @@ class punycodeEntry {
     public function query($rawParam) { // Punycode转换查询入口
         $encode = $this->encode($rawParam);
         $decode = $this->decode($rawParam);
-        if ($decode['data'] === $rawParam) { // 输入为明文
+        if ($decode['data'] === strtolower($rawParam)) { // 输入为明文
             $msg = '`' . $encode['data'] . '`' . PHP_EOL;
             if ($encode['status'] !== 'ok') {
                 $errMsg = $encode['message'];