// This method returns:
// 1. NULL if incoming datastream doesn't contain at least 4 bytes
// 2. Empty String is HTTP method is unknown
// 3. HTTP method name
private static String ReadHttpMethodName(Connection connection)
{
Byte[] lBuffer = new Byte[4];
if (connection.Receive(lBuffer, 0, 4) < 4)
return null;
String lHttpMethodName = Encoding.ASCII.GetString(lBuffer, 0, 4);
if ((lHttpMethodName == "POST") || (lHttpMethodName == "GET ") || (lHttpMethodName == "HTTP") ||
(lHttpMethodName == "HEAD") || (lHttpMethodName == "PUT "))
return lHttpMethodName;
if (lHttpMethodName == "MERG")
{
connection.Read(lBuffer, 0, 1);
if (lBuffer[0] != (Byte)'E')
return String.Empty;
return "MERGE";
}
if (lHttpMethodName == "DELE")
{
connection.Read(lBuffer, 0, 2);
if (lBuffer[0] != (Byte)'T' || lBuffer[1] != (Byte)'E')
return String.Empty;
return "DELETE";
}
if (lHttpMethodName == "OPTI")
{
connection.Read(lBuffer, 0, 3);
if (lBuffer[0] != (Byte)'O' || lBuffer[1] != (Byte)'N' || lBuffer[2] != (Byte)'S')
return String.Empty;
return "OPTIONS";
}
return String.Empty;
}