public HttpHeaders(SocketReader socketReader)
{
int lineNum = 0;
string line;
string lastField = null;
while ("\r\n" != (line = socketReader.NextLine()))
{
++lineNum;
Match match = headerFieldRegex.Match(line);
if (match.Success)
{
string name = match.Groups[1].Value.Trim().ToLower();
string value = match.Groups[2].Value;
if (!fields.Contains(name))
{
fields[name] = value;
}
else
{
fields[name] = (string)fields[name] + "," + value;
}
// in case continuation lines follow
lastField = name;
}
else
{
Match match2 = continuationRegex.Match(line);
if (match2.Success)
{
string value = match2.Groups[1].Value;
if (lastField != null)
{
fields[lastField] = (string)fields[lastField] + value;
}
else
{
Trace.Fail("Illegal HTTP header: folding whitespace detected at illegal location (line " + lineNum + ")");
}
}
else
{
Trace.Fail("Illegal HTTP header: could not parse line " + lineNum);
}
}
}
}
private bool Handler(string method, string uri, HttpHeaders headers, SocketReader reader, Socket socket)
{
if (_handlers.Count == 0)
{
return(false);
}
string path, querystring;
int qindex = uri.IndexOf('?');
if (qindex < 0)
{
path = uri;
querystring = null;
}
else
{
path = uri.Substring(0, qindex);
querystring = qindex == (uri.Length - 1) ? "" : uri.Substring(qindex + 1);
}
MemoryStream requestBodyStream = new MemoryStream();
byte[] buffer = new byte[8192];
int bytesRead;
while (0 != (bytesRead = reader.Read(buffer, 0, buffer.Length)))
{
requestBodyStream.Write(buffer, 0, bytesRead);
}
requestBodyStream.Seek(0, SeekOrigin.Begin);
Stream readOnlyRequestBodyStream = new ReadOnlyStream(requestBodyStream);
readOnlyRequestBodyStream.Seek(0, SeekOrigin.Begin);
Request request = new Request(method, path, querystring, headers, readOnlyRequestBodyStream);
Response response = new Response(new MemoryStream());
if (StartFilter.Filter(request, response))
{
response.Stream.Seek(0, SeekOrigin.Begin);
StreamHelper.Transfer(response.Stream, new SocketStream(socket, false));
return(true);
}
return(false);
}
public HttpHeaders(SocketReader socketReader)
{
int lineNum = 0;
string line;
string lastField = null;
while ("\r\n" != (line = socketReader.NextLine()))
{
++lineNum;
Match match = headerFieldRegex.Match(line);
if (match.Success)
{
string name = match.Groups[1].Value.Trim().ToLower();
string value = match.Groups[2].Value;
if (!fields.Contains(name))
fields[name] = value;
else
fields[name] = (string)fields[name] + "," + value;
// in case continuation lines follow
lastField = name;
}
else
{
Match match2 = continuationRegex.Match(line);
if (match2.Success)
{
string value = match2.Groups[1].Value;
if (lastField != null)
{
fields[lastField] = (string)fields[lastField] + value;
}
else
{
Trace.Fail("Illegal HTTP header: folding whitespace detected at illegal location (line " + lineNum + ")");
}
}
else
{
Trace.Fail("Illegal HTTP header: could not parse line " + lineNum);
}
}
}
}
private bool Handler(string method, string uri, HttpHeaders headers, SocketReader reader, Socket socket)
{
if (_handlers.Count == 0)
return false;
string path, querystring;
int qindex = uri.IndexOf('?');
if (qindex < 0)
{
path = uri;
querystring = null;
}
else
{
path = uri.Substring(0, qindex);
querystring = qindex == (uri.Length - 1) ? "" : uri.Substring(qindex + 1);
}
MemoryStream requestBodyStream = new MemoryStream();
byte[] buffer = new byte[8192];
int bytesRead;
while (0 != (bytesRead = reader.Read(buffer, 0, buffer.Length)))
{
requestBodyStream.Write(buffer, 0, bytesRead);
}
requestBodyStream.Seek(0, SeekOrigin.Begin);
Stream readOnlyRequestBodyStream = new ReadOnlyStream(requestBodyStream);
readOnlyRequestBodyStream.Seek(0, SeekOrigin.Begin);
Request request = new Request(method, path, querystring, headers, readOnlyRequestBodyStream);
Response response = new Response(new MemoryStream());
if (StartFilter.Filter(request, response))
{
response.Stream.Seek(0, SeekOrigin.Begin);
StreamHelper.Transfer(response.Stream, new SocketStream(socket, false));
return true;
}
return false;
}
private void HandleConnection(Socket remote)
{
try
{
if (localOnly && !((IPEndPoint)remote.RemoteEndPoint).Address.Equals(IPAddress.Loopback))
{
Trace.WriteLine("Rejecting non-loopback connection from remote host");
return;
}
else
{
SocketReader reader = new SocketReader(remote, 2048);
string val = reader.NextLine();
Match match = reqLine.Match(val);
if (!match.Success)
{
Trace.WriteLine("Rejecting malformed HTTP query: " + val);
return;
}
else
{
HttpHeaders headers = new HttpHeaders(reader);
string method = match.Groups[1].Value;
string uri = match.Groups[2].Value;
string version = match.Groups[3].Value;
if (headers.ContentLength >= 0)
{
reader.SetBytesRemaining(headers.ContentLength);
}
else if (string.Compare(method, "GET", true, CultureInfo.InvariantCulture) == 0)
{
reader.SetBytesRemaining(0);
}
// Console.WriteLine("URI: " + uri);
OnHandleConnectionBegin();
bool success = false;
for (int i = 0; i < handlers.Count; i++)
{
HandlerRegistration reg = (HandlerRegistration)handlers[i];
if (reg.Pattern.IsMatch(uri))
{
if (reg.Handler(method.ToUpper(CultureInfo.InvariantCulture), uri, headers, reader, remote))
{
success = true;
break;
}
}
}
if (!success)
{
HttpHelper.SendErrorCode(remote, 404, "Not found");
}
return;
}
}
}
finally
{
remote.Shutdown(SocketShutdown.Both);
remote.Close();
}
}
private void HandleConnection(Socket remote)
{
try
{
if (localOnly && !((IPEndPoint)remote.RemoteEndPoint).Address.Equals(IPAddress.Loopback))
{
Trace.WriteLine("Rejecting non-loopback connection from remote host");
return;
}
else
{
SocketReader reader = new SocketReader(remote, 2048);
string val = reader.NextLine();
Match match = reqLine.Match(val);
if (!match.Success)
{
Trace.WriteLine("Rejecting malformed HTTP query: " + val);
return;
}
else
{
HttpHeaders headers = new HttpHeaders(reader);
string method = match.Groups[1].Value;
string uri = match.Groups[2].Value;
string version = match.Groups[3].Value;
if (headers.ContentLength >= 0)
reader.SetBytesRemaining(headers.ContentLength);
else if (string.Compare(method, "GET", true, CultureInfo.InvariantCulture) == 0)
reader.SetBytesRemaining(0);
// Console.WriteLine("URI: " + uri);
OnHandleConnectionBegin();
bool success = false;
for (int i = 0; i < handlers.Count; i++)
{
HandlerRegistration reg = (HandlerRegistration) handlers[i];
if (reg.Pattern.IsMatch(uri))
{
if (reg.Handler(method.ToUpper(CultureInfo.InvariantCulture), uri, headers, reader, remote))
{
success = true;
break;
}
}
}
if (!success)
HttpHelper.SendErrorCode(remote, 404, "Not found");
return;
}
}
}
finally
{
remote.Shutdown(SocketShutdown.Both);
remote.Close();
}
}