private void binaryHandler(Socket sock)
{
int maxlen = 1 << 20; // Use a 1MB buffer
sock.ReceiveBufferSize = maxlen;
byte[] data = new byte[maxlen];
SocketAsyncEventArgs args = new SocketAsyncEventArgs();
do
{ // Get one request at a time
HttpRequest request = new HttpRequest();
int totalread = 0;
try
{
do
{ // Repetitively read until request is complete
if ((totalread + maxlen) > data.Length)
{ // Enlarge the buffer
byte[] newdata = new byte[2 * data.Length];
Array.Copy(data, newdata, data.Length);
data = newdata;
}
args.SetBuffer(data, totalread, data.Length - totalread);
// Don't need the return value; we control the buffer.
getBytes(sock, maxlen, 120000, args);
if (SocketError.Success == args.SocketError)
{
totalread += args.BytesTransferred;
byte[] remainder = request.Continue(data, totalread);
// There might be another request, or at least the start of one
if (null != remainder)
{
totalread -= (data.Length - remainder.Length);
data = remainder;
}
else
{ // No further data, just reset the offset.
totalread = 0;
}
}
else
{ // Some error occurred
return;
}
// Sanity check what we have so far
if (HttpVersion.INVALID_VERSION == request.Version)
{
HttpResponse resp = new HttpResponse(
sock,
HttpStatusCode.HttpVersionNotSupported,
Utility.CONTENT_TYPES[(int)ResponseType.TEXT_PLAIN],
"The protocol version specified in the request is not recognized!\n");
// Send the error report, which will close the connection; we don't care what else the client wanted
resp.Send(ConnectionPersistence.CLOSE);
return;
}
if (HttpMethod.INVALID_METHOD == request.Method)
{
HttpResponse resp = new HttpResponse(
sock,
HttpStatusCode.NotImplemented,
Utility.CONTENT_TYPES[(int)ResponseType.TEXT_PLAIN],
"The request HTTP verb (method) is not recognized!\n",
request.Version);
// Send the error report, which will close the connection; we don't care what else the client wanted
resp.Send(ConnectionPersistence.CLOSE);
return;
}
} while (!request.Complete);
// If we get here, this request is complete (might be more in data)
servicer(request, sock);
}
catch (ProtocolViolationException ex)
{
if (sock.Connected)
{
HttpResponse resp = new HttpResponse(
sock,
HttpStatusCode.BadRequest,
Utility.CONTENT_TYPES[(int)ResponseType.TEXT_PLAIN],
"Bad request!\n" + ex.ToString());
resp.Send(ConnectionPersistence.CLOSE);
}
return;
}
catch (Exception ex)
{
if (sock.Connected)
{
HttpResponse resp = new HttpResponse(
sock,
HttpStatusCode.InternalServerError,
Utility.CONTENT_TYPES[(int)ResponseType.TEXT_PLAIN],
"Internal Server Error!\n" + ex.ToString() + '\n' + ex.StackTrace);
resp.Send(ConnectionPersistence.CLOSE);
}
return;
}
} while (sock.Connected);
}
/// <summary>
/// Called after the client connection is established. Receives client request.
/// </summary>
/// <param name="sock">Connected TCP socket communicating with client</param>
private void handler(Socket sock)
{
sock.ReceiveBufferSize = (1 << 20); // Use a 1MB buffer
String data = "";
do
{
// Get one request at a time
HttpRequest request = new HttpRequest();
try
{
do
{
// We need (more) data
String newdata = getString(sock);
if (null == newdata)
{
// The connection was closed gracefully
return;
}
data += newdata;
// Update/populate the request using the Continue function
data = request.Continue(data);
// Sanity-check what we've parsed so far
if (HttpVersion.INVALID_VERSION == request.Version)
{
HttpResponse resp = new HttpResponse(
sock,
HttpStatusCode.HttpVersionNotSupported,
Utility.CONTENT_TYPES[(int)ResponseType.TEXT_PLAIN],
"The protocol version specified in the request is not recognized!\n");
// Send the error report, which will close the connection; we don't care what else the client wanted
resp.Send();
return;
}
if (HttpMethod.INVALID_METHOD == request.Method)
{
HttpResponse resp = new HttpResponse(
sock,
HttpStatusCode.NotImplemented,
Utility.CONTENT_TYPES[(int)ResponseType.TEXT_PLAIN],
"The request HTTP verb (method) is not recognized!\n",
request.Version);
// Send the error report, which will close the connection; we don't care what else the client wanted
resp.Send();
return;
}
} while (!request.Complete);
// OK *that* request is done now.
servicer(request, sock);
}
catch (ProtocolViolationException ex)
{
if (sock.Connected)
{
HttpResponse resp = new HttpResponse(
sock,
HttpStatusCode.BadRequest,
Utility.CONTENT_TYPES[(int)ResponseType.TEXT_PLAIN],
"Bad request!\n" + ex.ToString());
resp.Send();
}
return;
}
catch (Exception ex)
{
if (sock.Connected)
{
HttpResponse resp = new HttpResponse(
sock,
HttpStatusCode.InternalServerError,
Utility.CONTENT_TYPES[(int)ResponseType.TEXT_PLAIN],
"Internal Server Error!\n" + ex.ToString() + '\n' + ex.StackTrace);
resp.Send();
}
return;
}
// But, there might have been more than one request in the last packet
} while (sock.Connected);
}
