/// <summary>
/// Create a new http request header based on the given string representation.
/// </summary>
/// <param name="RemoteSocket">The remote TCP/IP socket.</param>
/// <param name="LocalSocket">The local TCP/IP socket.</param>
/// <param name="HTTPServer">The HTTP server of the request.</param>
/// <param name="HTTPHeader">A valid string representation of a http request header.</param>
/// <param name="HTTPBody">The HTTP body as an array of bytes.</param>
/// <param name="HTTPBodyStream">The HTTP body as an stream of bytes.</param>
/// <param name="CancellationToken">A token to cancel the HTTP request processing.</param>
/// <param name="EventTrackingId">An unique event tracking identification for correlating this request with other events.</param>
private HTTPRequest(IPSocket RemoteSocket,
IPSocket LocalSocket,
HTTPServer HTTPServer,
String HTTPHeader,
Byte[] HTTPBody = null,
Stream HTTPBodyStream = null,
CancellationToken?CancellationToken = null,
EventTracking_Id EventTrackingId = null)
: base(RemoteSocket,
LocalSocket,
HTTPHeader,
HTTPBody,
HTTPBodyStream,
CancellationToken,
EventTrackingId)
{
this._HTTPServer = HTTPServer;
#region Parse HTTPMethod (first line of the http request)
var _HTTPMethodHeader = FirstPDULine.Split(_SpaceSeparator, StringSplitOptions.RemoveEmptyEntries);
// e.g: PROPFIND /file/file Name HTTP/1.1
if (_HTTPMethodHeader.Length != 3)
{
throw new Exception("Bad request");
}
// Parse HTTP method
// Propably not usefull to define here, as we can not send a response having an "Allow-header" here!
this._HTTPMethod = (HTTPMethod.TryParseString(_HTTPMethodHeader[0], out _HTTPMethod))
? _HTTPMethod
: HTTPMethod.Create(_HTTPMethodHeader[0]);
#endregion
#region Parse URL and QueryString (first line of the http request)
var RawUrl = _HTTPMethodHeader[1];
var _ParsedURL = RawUrl.Split(_URLSeparator, 2, StringSplitOptions.None);
this.URI = HttpUtility.UrlDecode(_ParsedURL[0]);
if (URI.StartsWith("http", StringComparison.Ordinal) || URI.StartsWith("https", StringComparison.Ordinal))
{
URI = URI.Substring(URI.IndexOf("://", StringComparison.Ordinal) + 3);
URI = URI.Substring(URI.IndexOf("/", StringComparison.Ordinal) + 1);
}
if (URI == "" || URI == null)
{
URI = "/";
}
// Parse QueryString after '?'
if (RawUrl.IndexOf('?') > -1 && _ParsedURL[1].IsNeitherNullNorEmpty())
{
this._QueryString = QueryString.Parse(_ParsedURL[1]);
}
else
{
this._QueryString = QueryString.Empty;
}
#endregion
#region Parse protocol name and -version (first line of the http request)
var _ProtocolArray = _HTTPMethodHeader[2].Split(_SlashSeparator, 2, StringSplitOptions.RemoveEmptyEntries);
this._ProtocolName = _ProtocolArray[0].ToUpper();
if (ProtocolName.ToUpper() != "HTTP")
{
throw new Exception("Bad request");
}
HTTPVersion _HTTPVersion = null;
if (HTTPVersion.TryParseVersionString(_ProtocolArray[1], out _HTTPVersion))
{
this._ProtocolVersion = _HTTPVersion;
}
if (ProtocolVersion != HTTPVersion.HTTP_1_0 && ProtocolVersion != HTTPVersion.HTTP_1_1)
{
throw new Exception("HTTP version not supported");
}
#endregion
#region Check Host header
// rfc 2616 - Section 19.6.1.1
// A client that sends an HTTP/1.1 request MUST send a Host header.
// rfc 2616 - Section 14.23
// All Internet-based HTTP/1.1 servers MUST respond with a 400 (Bad Request)
// status code to any HTTP/1.1 request message which lacks a Host header field.
// rfc 2616 - Section 5.2 The Resource Identified by a Request
// 1. If Request-URI is an absoluteURI, the host is part of the Request-URI.
// Any Host header field value in the request MUST be ignored.
// 2. If the Request-URI is not an absoluteURI, and the request includes a
// Host header field, the host is determined by the Host header field value.
// 3. If the host as determined by rule 1 or 2 is not a valid host on the server,
// the response MUST be a 400 (Bad Request) error message. (Not valid for proxies?!)
if (!_HeaderFields.ContainsKey(HTTPHeaderField.Host.Name))
{
throw new Exception("The HTTP PDU does not have a HOST header!");
}
// rfc 2616 - 3.2.2
// If the port is empty or not given, port 80 is assumed.
var HostHeader = _HeaderFields[HTTPHeaderField.Host.Name].ToString().
Split(_ColonSeparator, StringSplitOptions.RemoveEmptyEntries).
Select(v => v.Trim()).
ToArray();
UInt16 HostPort = 80;
if (HostHeader.Length == 1)
{
_HeaderFields[HTTPHeaderField.Host.Name] = _HeaderFields[HTTPHeaderField.Host.Name].ToString();// + ":80"; ":80" will cause side effects!
}
else if ((HostHeader.Length == 2 && !UInt16.TryParse(HostHeader[1], out HostPort)) || HostHeader.Length > 2)
{
throw new Exception("Bad request");
}
#endregion
}
/// <summary>
/// Set the protocol version.
/// </summary>
/// <param name="ProtocolVersion">The protocol version.</param>
public HTTPRequestBuilder SetProtocolVersion(HTTPVersion ProtocolVersion)
{
this.ProtocolVersion = ProtocolVersion;
return(this);
}