private async Task <HTTPRequest> ProcessStream(IInputStream stream)
{
Dictionary <string, string> _httpHeaders = null;
Dictionary <string, string> _urlParameters = null;
byte[] data = new byte[BufferSize];
StringBuilder requestString = new StringBuilder();
uint dataRead = BufferSize;
IBuffer buffer = data.AsBuffer();
string hValue = "";
string hKey = "";
try
{
// binary data buffer index
uint bfndx = 0;
// Incoming message may be larger than the buffer size.
while (dataRead == BufferSize)
{
await stream.ReadAsync(buffer, BufferSize, InputStreamOptions.Partial);
requestString.Append(Encoding.UTF8.GetString(data, 0, data.Length));
dataRead = buffer.Length;
// read buffer index
uint ndx = 0;
do
{
switch (ParserState)
{
case HttpParserState.METHOD:
if (data[ndx] != ' ')
{
HTTPRequest.Method += (char)buffer.GetByte(ndx++);
}
else
{
ndx++;
ParserState = HttpParserState.URL;
}
break;
case HttpParserState.URL:
if (data[ndx] == '?')
{
ndx++;
hKey = "";
HTTPRequest.Execute = true;
_urlParameters = new Dictionary <string, string>();
ParserState = HttpParserState.URLPARM;
}
else if (data[ndx] != ' ')
{
HTTPRequest.URL += (char)buffer.GetByte(ndx++);
}
else
{
ndx++;
HTTPRequest.URL = WebUtility.UrlDecode(HTTPRequest.URL);
ParserState = HttpParserState.VERSION;
}
break;
case HttpParserState.URLPARM:
if (data[ndx] == '=')
{
ndx++;
hValue = "";
ParserState = HttpParserState.URLVALUE;
}
else if (data[ndx] == ' ')
{
ndx++;
HTTPRequest.URL = WebUtility.UrlDecode(HTTPRequest.URL);
ParserState = HttpParserState.VERSION;
}
else
{
hKey += (char)buffer.GetByte(ndx++);
}
break;
case HttpParserState.URLVALUE:
if (data[ndx] == '&')
{
ndx++;
hKey = WebUtility.UrlDecode(hKey);
hValue = WebUtility.UrlDecode(hValue);
_urlParameters[hKey] = _urlParameters.ContainsKey(hKey) ? _urlParameters[hKey] + ", " + hValue : hValue;
hKey = "";
ParserState = HttpParserState.URLPARM;
}
else if (data[ndx] == ' ')
{
ndx++;
hKey = WebUtility.UrlDecode(hKey);
hValue = WebUtility.UrlDecode(hValue);
_urlParameters[hKey] = _urlParameters.ContainsKey(hKey) ? _urlParameters[hKey] + ", " + hValue : hValue;
HTTPRequest.URL = WebUtility.UrlDecode(HTTPRequest.URL);
ParserState = HttpParserState.VERSION;
}
else
{
hValue += (char)buffer.GetByte(ndx++);
}
break;
case HttpParserState.VERSION:
if (data[ndx] == '\r')
{
ndx++;
}
else if (data[ndx] != '\n')
{
HTTPRequest.Version += (char)buffer.GetByte(ndx++);
}
else
{
ndx++;
hKey = "";
_httpHeaders = new Dictionary <string, string>();
ParserState = HttpParserState.HEADERKEY;
}
break;
case HttpParserState.HEADERKEY:
if (data[ndx] == '\r')
{
ndx++;
}
else if (data[ndx] == '\n')
{
ndx++;
if (_httpHeaders.ContainsKey("Content-Length"))
{
HTTPRequest.BodySize = Convert.ToInt32(_httpHeaders["Content-Length"]);
ParserState = HttpParserState.BODY;
}
else
{
ParserState = HttpParserState.OK;
}
}
else if (data[ndx] == ':')
{
ndx++;
}
else if (data[ndx] != ' ')
{
hKey += (char)buffer.GetByte(ndx++);
}
else
{
ndx++;
hValue = "";
ParserState = HttpParserState.HEADERVALUE;
}
break;
case HttpParserState.HEADERVALUE:
if (data[ndx] == '\r')
{
ndx++;
}
else if (data[ndx] != '\n')
{
hValue += (char)buffer.GetByte(ndx++);
}
else
{
ndx++;
_httpHeaders.Add(hKey, hValue);
hKey = "";
ParserState = HttpParserState.HEADERKEY;
}
break;
case HttpParserState.BODY:
// Append to request BodyData
this.HTTPRequest.BodyContent = Encoding.UTF8.GetString(data, 0, this.HTTPRequest.BodySize);
bfndx += dataRead - ndx;
ndx = dataRead;
if (this.HTTPRequest.BodySize <= bfndx)
{
ParserState = HttpParserState.OK;
}
break;
//default:
// ndx++;
// break;
}
}while (ndx < dataRead);
}
;
// Print out the received message to the console.
Debug.WriteLine("You received the following message : \n" + requestString);
if (_httpHeaders != null)
{
HTTPRequest.Headers = _httpHeaders.AsEnumerable();
}
if (_urlParameters != null)
{
HTTPRequest.URLParametes = _urlParameters.AsEnumerable();
}
return(HTTPRequest);
}
catch (Exception e)
{
Debug.WriteLine(e.ToString());
}
return(null);
}
private async Task<HTTPRequest> ProcessStream(IInputStream stream)
{
Dictionary<string, string> _httpHeaders = null;
Dictionary<string, string> _urlParameters = null;
byte[] data = new byte[BufferSize];
StringBuilder requestString = new StringBuilder();
uint dataRead = BufferSize;
IBuffer buffer = data.AsBuffer();
string hValue = "";
string hKey = "";
try
{
// binary data buffer index
uint bfndx = 0;
// Incoming message may be larger than the buffer size.
while (dataRead == BufferSize)
{
await stream.ReadAsync(buffer, BufferSize, InputStreamOptions.Partial);
requestString.Append(Encoding.UTF8.GetString(data, 0, data.Length));
dataRead = buffer.Length;
// read buffer index
uint ndx = 0;
do
{
switch (ParserState)
{
case HttpParserState.METHOD:
if (data[ndx] != ' ')
HTTPRequest.Method += (char)buffer.GetByte(ndx++);
else
{
ndx++;
ParserState = HttpParserState.URL;
}
break;
case HttpParserState.URL:
if (data[ndx] == '?')
{
ndx++;
hKey = "";
HTTPRequest.Execute = true;
_urlParameters = new Dictionary<string, string>();
ParserState = HttpParserState.URLPARM;
}
else if (data[ndx] != ' ')
HTTPRequest.URL += (char)buffer.GetByte(ndx++);
else
{
ndx++;
HTTPRequest.URL = WebUtility.UrlDecode(HTTPRequest.URL);
ParserState = HttpParserState.VERSION;
}
break;
case HttpParserState.URLPARM:
if (data[ndx] == '=')
{
ndx++;
hValue = "";
ParserState = HttpParserState.URLVALUE;
}
else if (data[ndx] == ' ')
{
ndx++;
HTTPRequest.URL = WebUtility.UrlDecode(HTTPRequest.URL);
ParserState = HttpParserState.VERSION;
}
else
{
hKey += (char)buffer.GetByte(ndx++);
}
break;
case HttpParserState.URLVALUE:
if (data[ndx] == '&')
{
ndx++;
hKey = WebUtility.UrlDecode(hKey);
hValue = WebUtility.UrlDecode(hValue);
_urlParameters[hKey] = _urlParameters.ContainsKey(hKey) ? _urlParameters[hKey] + ", " + hValue : hValue;
hKey = "";
ParserState = HttpParserState.URLPARM;
}
else if (data[ndx] == ' ')
{
ndx++;
hKey = WebUtility.UrlDecode(hKey);
hValue = WebUtility.UrlDecode(hValue);
_urlParameters[hKey] = _urlParameters.ContainsKey(hKey) ? _urlParameters[hKey] + ", " + hValue : hValue;
HTTPRequest.URL = WebUtility.UrlDecode(HTTPRequest.URL);
ParserState = HttpParserState.VERSION;
}
else
{
hValue += (char)buffer.GetByte(ndx++);
}
break;
case HttpParserState.VERSION:
if (data[ndx] == '\r')
ndx++;
else if (data[ndx] != '\n')
HTTPRequest.Version += (char)buffer.GetByte(ndx++);
else
{
ndx++;
hKey = "";
_httpHeaders = new Dictionary<string, string>();
ParserState = HttpParserState.HEADERKEY;
}
break;
case HttpParserState.HEADERKEY:
if (data[ndx] == '\r')
ndx++;
else if (data[ndx] == '\n')
{
ndx++;
if (_httpHeaders.ContainsKey("Content-Length"))
{
HTTPRequest.BodySize = Convert.ToInt32(_httpHeaders["Content-Length"]);
ParserState = HttpParserState.BODY;
}
else
ParserState = HttpParserState.OK;
}
else if (data[ndx] == ':')
ndx++;
else if (data[ndx] != ' ')
hKey += (char)buffer.GetByte(ndx++);
else
{
ndx++;
hValue = "";
ParserState = HttpParserState.HEADERVALUE;
}
break;
case HttpParserState.HEADERVALUE:
if (data[ndx] == '\r')
ndx++;
else if (data[ndx] != '\n')
hValue += (char)buffer.GetByte(ndx++);
else
{
ndx++;
_httpHeaders.Add(hKey, hValue);
hKey = "";
ParserState = HttpParserState.HEADERKEY;
}
break;
case HttpParserState.BODY:
// Append to request BodyData
this.HTTPRequest.BodyContent = Encoding.UTF8.GetString(data, 0, this.HTTPRequest.BodySize);
bfndx += dataRead - ndx;
ndx = dataRead;
if (this.HTTPRequest.BodySize <= bfndx)
{
ParserState = HttpParserState.OK;
}
break;
//default:
// ndx++;
// break;
}
}
while (ndx < dataRead);
};
// Print out the received message to the console.
Debug.WriteLine("You received the following message : \n" + requestString);
if (_httpHeaders != null)
HTTPRequest.Headers = _httpHeaders.AsEnumerable();
if (_urlParameters != null)
HTTPRequest.URLParametes = _urlParameters.AsEnumerable();
return HTTPRequest;
}
catch (Exception e)
{
Debug.WriteLine(e.ToString());
}
return null;
}
