private const long MAX_REQUEST_SLIDING_TIMEOUT = 2 * 1000; // 1 seconds
public HttpRequest()
{
_headers = new MFToolkit.Collection.Spezialized.NameValueCollection();
}
private const long MAX_REQUEST_SLIDING_TIMEOUT = 2 * 1000; // 1 seconds
public HttpRequest()
{
_headers = new MFToolkit.Collection.Spezialized.NameValueCollection();
}
internal bool Read(Stream stream, IPEndPoint endPoint)
{
byte[] buffer = new byte[1024];
RequestParserState state = RequestParserState.ReadMethod;
string key = "";
string value = "";
MemoryStream ms = null;
DateTime begin = DateTime.Now;
DateTime lastByteReceived = begin;
if (endPoint != null)
UserHostAddress = endPoint.Address.ToString();
while (true)
{
if (state == RequestParserState.ReadDone)
return true;
int bytesRead = 0;
int idx = 0;
#if(MF)
// set all bytes to null byte (strings are ending with null byte in MF)
Array.Clear(buffer, 0, buffer.Length);
#endif
try
{
bytesRead = stream.Read(buffer, 0, buffer.Length);
if (bytesRead > 0)
lastByteReceived = DateTime.Now;
}
catch (IOException)
{
break;
}
catch (Exception)
{
DateTime nd = DateTime.Now;
#if(MF)
if((nd.Ticks - lastByteReceived.Ticks) / TimeSpan.TicksPerMillisecond > MAX_REQUEST_SLIDING_TIMEOUT)
break;
#else
// if ((nd - lastByteReceived).TotalMilliseconds > MAX_REQUEST_SLIDING_TIMEOUT)
// break;
#endif
if (HttpMethod == "POST" && (_body == null || _body.Length < ContentLength))
continue;
#if(MF)
if((nd.Ticks - begin.Ticks) / TimeSpan.TicksPerMillisecond < MAX_REQUEST_TIMEOUT)
continue;
#else
// if ((nd - begin).TotalMilliseconds < MAX_REQUEST_TIMEOUT)
// continue;
#endif
break;
}
if (bytesRead == 0) // should never happen
break;
totalBytes += bytesRead;
#if(FILELOG && !MF && !WindowsCE)
File.AppendAllText("loghttp-" + socket.RemoteEndPoint.ToString().Replace(":", "-") + ".txt", Encoding.UTF8.GetString(buffer, 0, bytesRead) + "\r\n");
#endif
if (totalBytes <= idx)
continue;
do
{
switch (state)
{
case RequestParserState.ReadMethod:
if (buffer[idx] != ' ')
HttpMethod += (char)buffer[idx++];
else
{
// TODO: add a allowed methods list
//if (HttpMethod != "POST" && HttpMethod != "GET" && HttpMethod != "OPTIONS")
// throw new HttpException(HttpStatusCode.MethodNotAllowed);
idx++;
state = RequestParserState.ReadUrl;
}
break;
case RequestParserState.ReadUrl:
if (buffer[idx] == '?')
{
idx++;
key = "";
_params = new MFToolkit.Collection.Spezialized.NameValueCollection();
state = RequestParserState.ReadParamKey;
}
else if (buffer[idx] != ' ')
{
RawUrl += (char)buffer[idx++];
}
else
{
idx++;
RawUrl = HttpServerUtility.UrlDecode(RawUrl);
state = RequestParserState.ReadVersion;
}
break;
case RequestParserState.ReadParamKey:
if (buffer[idx] == '=')
{
idx++;
value = "";
state = RequestParserState.ReadParamValue;
}
else if (buffer[idx] == ' ')
{
idx++;
RawUrl = HttpServerUtility.UrlDecode(RawUrl);
state = RequestParserState.ReadVersion;
}
else
{
key += (char)buffer[idx++];
}
break;
case RequestParserState.ReadParamValue:
if (buffer[idx] == '&')
{
idx++;
key = HttpServerUtility.UrlDecode(key);
value = HttpServerUtility.UrlDecode(value);
Params[key] = (Params[key] != null ? Params[key] + ", " + value : value);
key = "";
value = "";
state = RequestParserState.ReadParamKey;
}
else if (buffer[idx] == ' ')
{
idx++;
key = HttpServerUtility.UrlDecode(key);
value = HttpServerUtility.UrlDecode(value);
Params[key] = (Params[key] != null ? Params[key] + ", " + value : value);
RawUrl = HttpServerUtility.UrlDecode(RawUrl);
state = RequestParserState.ReadVersion;
}
else
{
value += (char)buffer[idx++];
}
break;
case RequestParserState.ReadVersion:
if (buffer[idx] == '\r')
idx++;
else if (buffer[idx] != '\n')
HttpVersion += (char)buffer[idx++];
else
{
if (HttpVersion != "HTTP/1.1" && HttpVersion != "HTTP/1.0")
throw new HttpException(HttpStatusCode.HttpVersionNotSupported);
idx++;
key = "";
Headers = new MFToolkit.Collection.Spezialized.NameValueCollection();
state = RequestParserState.ReadHeaderKey;
}
break;
case RequestParserState.ReadHeaderKey:
if (buffer[idx] == '\r')
idx++;
else if (buffer[idx] == '\n')
{
idx++;
if (HttpMethod == "POST")
state = RequestParserState.ReadBody;
else
{
state = RequestParserState.ReadDone; // well, we don't really need this
return true;
}
}
else if (buffer[idx] == ':')
idx++;
else if (buffer[idx] != ' ')
key += (char)buffer[idx++];
else
{
idx++;
value = "";
state = RequestParserState.ReadHeaderValue;
}
break;
case RequestParserState.ReadHeaderValue:
if (buffer[idx] == '\r')
idx++;
else if (buffer[idx] != '\n')
value += (char)buffer[idx++];
else
{
idx++;
Headers.Add(key, value);
key = "";
state = RequestParserState.ReadHeaderKey;
}
break;
case RequestParserState.ReadBody:
if (ContentLength > MAX_CONTENT_LENGTH)
{
// TODO: how can I stop the client to cancel http request
//throw new HttpException(HttpStatusCode.RequestEntitiyTooLarge);
}
if (ms == null)
ms = new MemoryStream();
ms.Write(buffer, idx, bytesRead - idx);
idx = bytesRead;
if (ms.Length >= ContentLength)
{
_body = ms.ToArray();
// if using a <form/> tag with POST check if it is urlencoded or multipart boundary
if (ContentType.IndexOf("application/x-www-form-urlencoded") != -1)
{
_form = new MFToolkit.Collection.Spezialized.NameValueCollection();
key = "";
value = null;
for (int i = 0; i < _body.Length; i++)
{
if (_body[i] == '=')
value = "";
else if (_body[i] == '&')
{
_form.Add(key, value != null ? HttpServerUtility.UrlDecode(value) : "");
key = "";
value = null;
}
else if (value == null)
key += (char)_body[i];
else if (value != null)
value += (char)_body[i];
}
if (key != null && key.Length > 0)
{
_form.Add(key, value != null ? HttpServerUtility.UrlDecode(value) : "");
}
}
else if (ContentType != null && ContentType.Length > "multipart/form-data; boundary=".Length && ContentType.Substring(0, "multipart/form-data; boundary=".Length) == "multipart/form-data; boundary=")
{
string boundary = ContentType.Substring("multipart/form-data; boundary=".Length);
_mime = new MimeContentCollection();
MimeParser mp = new MimeParser(_body, boundary);
MimeContent mime = mp.GetNextContent();
while (mime != null)
{
_mime.Add(mime.Name, mime);
if (mime.Headers["Content-Disposition"] != null && mime.Headers["Content-Disposition"].IndexOf("form-data") >= 0)
{
if (_form == null)
_form = new MFToolkit.Collection.Spezialized.NameValueCollection();
_form.Add(mime.Name, (mime.Content != null && mime.Content.Length > 0 ? new string(Encoding.UTF8.GetChars(mime.Content)) : ""));
}
mime = mp.GetNextContent();
}
}
state = RequestParserState.ReadDone; // well, we don't really need this
return true;
}
break;
case RequestParserState.ReadDone: // well, we don't really need this
return true;
default:
//idx++;
break;
}
}
while (idx < bytesRead);
}
return false;
}
internal bool Read(Stream stream, IPEndPoint endPoint)
{
byte[] buffer = new byte[1024];
RequestParserState state = RequestParserState.ReadMethod;
string key = "";
string value = "";
MemoryStream ms = null;
DateTime begin = DateTime.Now;
DateTime lastByteReceived = begin;
if (endPoint != null)
{
UserHostAddress = endPoint.Address.ToString();
}
while (true)
{
if (state == RequestParserState.ReadDone)
{
return(true);
}
int bytesRead = 0;
int idx = 0;
#if (MF)
// set all bytes to null byte (strings are ending with null byte in MF)
Array.Clear(buffer, 0, buffer.Length);
#endif
try
{
bytesRead = stream.Read(buffer, 0, buffer.Length);
if (bytesRead > 0)
{
lastByteReceived = DateTime.Now;
}
}
catch (IOException)
{
break;
}
catch (Exception)
{
DateTime nd = DateTime.Now;
#if (MF)
if ((nd.Ticks - lastByteReceived.Ticks) / TimeSpan.TicksPerMillisecond > MAX_REQUEST_SLIDING_TIMEOUT)
{
break;
}
#else
// if ((nd - lastByteReceived).TotalMilliseconds > MAX_REQUEST_SLIDING_TIMEOUT)
// break;
#endif
if (HttpMethod == "POST" && (_body == null || _body.Length < ContentLength))
{
continue;
}
#if (MF)
if ((nd.Ticks - begin.Ticks) / TimeSpan.TicksPerMillisecond < MAX_REQUEST_TIMEOUT)
{
continue;
}
#else
// if ((nd - begin).TotalMilliseconds < MAX_REQUEST_TIMEOUT)
// continue;
#endif
break;
}
if (bytesRead == 0) // should never happen
{
break;
}
totalBytes += bytesRead;
#if (FILELOG && !MF && !WindowsCE)
File.AppendAllText("loghttp-" + socket.RemoteEndPoint.ToString().Replace(":", "-") + ".txt", Encoding.UTF8.GetString(buffer, 0, bytesRead) + "\r\n");
#endif
if (totalBytes <= idx)
{
continue;
}
do
{
switch (state)
{
case RequestParserState.ReadMethod:
if (buffer[idx] != ' ')
{
HttpMethod += (char)buffer[idx++];
}
else
{
// TODO: add a allowed methods list
//if (HttpMethod != "POST" && HttpMethod != "GET" && HttpMethod != "OPTIONS")
// throw new HttpException(HttpStatusCode.MethodNotAllowed);
idx++;
state = RequestParserState.ReadUrl;
}
break;
case RequestParserState.ReadUrl:
if (buffer[idx] == '?')
{
idx++;
key = "";
_params = new MFToolkit.Collection.Spezialized.NameValueCollection();
state = RequestParserState.ReadParamKey;
}
else if (buffer[idx] != ' ')
{
RawUrl += (char)buffer[idx++];
}
else
{
idx++;
RawUrl = HttpServerUtility.UrlDecode(RawUrl);
state = RequestParserState.ReadVersion;
}
break;
case RequestParserState.ReadParamKey:
if (buffer[idx] == '=')
{
idx++;
value = "";
state = RequestParserState.ReadParamValue;
}
else if (buffer[idx] == ' ')
{
idx++;
RawUrl = HttpServerUtility.UrlDecode(RawUrl);
state = RequestParserState.ReadVersion;
}
else
{
key += (char)buffer[idx++];
}
break;
case RequestParserState.ReadParamValue:
if (buffer[idx] == '&')
{
idx++;
key = HttpServerUtility.UrlDecode(key);
value = HttpServerUtility.UrlDecode(value);
Params[key] = (Params[key] != null ? Params[key] + ", " + value : value);
key = "";
value = "";
state = RequestParserState.ReadParamKey;
}
else if (buffer[idx] == ' ')
{
idx++;
key = HttpServerUtility.UrlDecode(key);
value = HttpServerUtility.UrlDecode(value);
Params[key] = (Params[key] != null ? Params[key] + ", " + value : value);
RawUrl = HttpServerUtility.UrlDecode(RawUrl);
state = RequestParserState.ReadVersion;
}
else
{
value += (char)buffer[idx++];
}
break;
case RequestParserState.ReadVersion:
if (buffer[idx] == '\r')
{
idx++;
}
else if (buffer[idx] != '\n')
{
HttpVersion += (char)buffer[idx++];
}
else
{
if (HttpVersion != "HTTP/1.1" && HttpVersion != "HTTP/1.0")
{
throw new HttpException(HttpStatusCode.HttpVersionNotSupported);
}
idx++;
key = "";
Headers = new MFToolkit.Collection.Spezialized.NameValueCollection();
state = RequestParserState.ReadHeaderKey;
}
break;
case RequestParserState.ReadHeaderKey:
if (buffer[idx] == '\r')
{
idx++;
}
else if (buffer[idx] == '\n')
{
idx++;
if (HttpMethod == "POST")
{
state = RequestParserState.ReadBody;
}
else
{
state = RequestParserState.ReadDone; // well, we don't really need this
return(true);
}
}
else if (buffer[idx] == ':')
{
idx++;
}
else if (buffer[idx] != ' ')
{
key += (char)buffer[idx++];
}
else
{
idx++;
value = "";
state = RequestParserState.ReadHeaderValue;
}
break;
case RequestParserState.ReadHeaderValue:
if (buffer[idx] == '\r')
{
idx++;
}
else if (buffer[idx] != '\n')
{
value += (char)buffer[idx++];
}
else
{
idx++;
Headers.Add(key, value);
key = "";
state = RequestParserState.ReadHeaderKey;
}
break;
case RequestParserState.ReadBody:
if (ContentLength > MAX_CONTENT_LENGTH)
{
// TODO: how can I stop the client to cancel http request
//throw new HttpException(HttpStatusCode.RequestEntitiyTooLarge);
}
if (ms == null)
{
ms = new MemoryStream();
}
ms.Write(buffer, idx, bytesRead - idx);
idx = bytesRead;
if (ms.Length >= ContentLength)
{
_body = ms.ToArray();
// if using a <form/> tag with POST check if it is urlencoded or multipart boundary
if (ContentType.IndexOf("application/x-www-form-urlencoded") != -1)
{
_form = new MFToolkit.Collection.Spezialized.NameValueCollection();
key = "";
value = null;
for (int i = 0; i < _body.Length; i++)
{
if (_body[i] == '=')
{
value = "";
}
else if (_body[i] == '&')
{
_form.Add(key, value != null ? HttpServerUtility.UrlDecode(value) : "");
key = "";
value = null;
}
else if (value == null)
{
key += (char)_body[i];
}
else if (value != null)
{
value += (char)_body[i];
}
}
if (key != null && key.Length > 0)
{
_form.Add(key, value != null ? HttpServerUtility.UrlDecode(value) : "");
}
}
else if (ContentType != null && ContentType.Length > "multipart/form-data; boundary=".Length && ContentType.Substring(0, "multipart/form-data; boundary=".Length) == "multipart/form-data; boundary=")
{
string boundary = ContentType.Substring("multipart/form-data; boundary=".Length);
_mime = new MimeContentCollection();
MimeParser mp = new MimeParser(_body, boundary);
MimeContent mime = mp.GetNextContent();
while (mime != null)
{
_mime.Add(mime.Name, mime);
if (mime.Headers["Content-Disposition"] != null && mime.Headers["Content-Disposition"].IndexOf("form-data") >= 0)
{
if (_form == null)
{
_form = new MFToolkit.Collection.Spezialized.NameValueCollection();
}
_form.Add(mime.Name, (mime.Content != null && mime.Content.Length > 0 ? new string(Encoding.UTF8.GetChars(mime.Content)) : ""));
}
mime = mp.GetNextContent();
}
}
state = RequestParserState.ReadDone; // well, we don't really need this
return(true);
}
break;
case RequestParserState.ReadDone: // well, we don't really need this
return(true);
default:
//idx++;
break;
}
}while (idx < bytesRead);
}
return(false);
}