set class property for header length

Server.php

@@ -56,6 +56,12 @@ class Server extends Connection
      */
     protected $_request = null;
 
+    /**
+     * length of buffer used to extract header information
+     *
+     * @var int
+     */
+    protected $headerLength = 2048;
 
 
     /**
@@ -80,6 +86,17 @@ public function __construct(
         return;
     }
 
+    /**
+     * Set length of buffer used to extract header information
+     *
+     * @param  int $length
+     * @return void
+     */
+    public function setHeaderBufferSize($length)
+    {
+        $this->headerLength = (int)$length;
+    }
+
     /**
      * Try the handshake by trying different protocol implementation.
      *
@@ -89,7 +106,7 @@ public function __construct(
     protected function doHandshake()
     {
         $connection = $this->getConnection();
-        $buffer     = $connection->read(2048);
+        $buffer     = $connection->read($this->headerLength);
         $request    = $this->getRequest();
         $request->parse($buffer);