public static HandshakeResponse Parse(string [] headerParts)
{
var statusLine = headerParts [0].Split (new char [] { ' ' }, 3);
if (statusLine.Length != 3)
throw new ArgumentException ("Invalid status line: " + headerParts [0]);
var headers = new WebHeaderCollection ();
for (int i = 1; i < headerParts.Length; i++)
headers.SetInternally (headerParts [i], true);
return new HandshakeResponse {
Headers = headers,
ProtocolVersion = new Version (statusLine [0].Substring (5)),
Reason = statusLine [2],
StatusCode = statusLine [1]
};
}
internal void SendHeaders(bool closing, MemoryStream stream)
{
if (_contentType != null)
{
var contentType = _contentEncoding != null &&
_contentType.IndexOf("charset=", StringComparison.Ordinal) == -1
? _contentType + "; charset=" + _contentEncoding.WebName
: _contentType;
_headers.SetInternally("Content-Type", contentType, true);
}
if (_headers ["Server"] == null)
{
_headers.SetInternally("Server", "websocket-sharp/1.0", true);
}
var provider = CultureInfo.InvariantCulture;
if (_headers ["Date"] == null)
{
_headers.SetInternally("Date", DateTime.UtcNow.ToString("r", provider), true);
}
if (!_chunked)
{
if (!_contentLengthSet && closing)
{
_contentLengthSet = true;
_contentLength = 0;
}
if (_contentLengthSet)
{
_headers.SetInternally("Content-Length", _contentLength.ToString(provider), true);
}
}
var version = _context.Request.ProtocolVersion;
if (!_contentLengthSet && !_chunked && version >= HttpVersion.Version11)
{
_chunked = true;
}
/* Apache forces closing the connection for these status codes:
* - HttpStatusCode.BadRequest 400
* - HttpStatusCode.RequestTimeout 408
* - HttpStatusCode.LengthRequired 411
* - HttpStatusCode.RequestEntityTooLarge 413
* - HttpStatusCode.RequestUriTooLong 414
* - HttpStatusCode.InternalServerError 500
* - HttpStatusCode.ServiceUnavailable 503
*/
var connClose = _statusCode == 400 ||
_statusCode == 408 ||
_statusCode == 411 ||
_statusCode == 413 ||
_statusCode == 414 ||
_statusCode == 500 ||
_statusCode == 503;
if (!connClose)
{
connClose = !_context.Request.KeepAlive;
}
// They sent both KeepAlive: true and Connection: close!?
if (!_keepAlive || connClose)
{
_headers.SetInternally("Connection", "close", true);
connClose = true;
}
if (_chunked)
{
_headers.SetInternally("Transfer-Encoding", "chunked", true);
}
int reuses = _context.Connection.Reuses;
if (reuses >= 100)
{
_forceCloseChunked = true;
if (!connClose)
{
_headers.SetInternally("Connection", "close", true);
connClose = true;
}
}
if (!connClose)
{
_headers.SetInternally(
"Keep-Alive", String.Format("timeout=15,max={0}", 100 - reuses), true);
if (_context.Request.ProtocolVersion <= HttpVersion.Version10)
{
_headers.SetInternally("Connection", "keep-alive", true);
}
}
if (_location != null)
{
_headers.SetInternally("Location", _location, true);
}
if (_cookies != null)
{
foreach (Cookie cookie in _cookies)
{
_headers.SetInternally("Set-Cookie", cookie.ToResponseString(), true);
}
}
var encoding = _contentEncoding ?? Encoding.Default;
var writer = new StreamWriter(stream, encoding, 256);
writer.Write("HTTP/{0} {1} {2}\r\n", _version, _statusCode, _statusDescription);
var headers = _headers.ToStringMultiValue(true);
writer.Write(headers);
writer.Flush();
var preamble = encoding.CodePage == 65001 ? 3 : encoding.GetPreamble().Length;
if (_outputStream == null)
{
_outputStream = _context.Connection.GetResponseStream();
}
// Assumes that the stream was at position 0.
stream.Position = preamble;
_headersSent = true;
}
internal void AddHeader(string header)
{
var colon = header.IndexOf(':');
if (colon == -1)
{
_context.ErrorMessage = "Invalid header";
return;
}
var name = header.Substring(0, colon).Trim();
var val = header.Substring(colon + 1).Trim();
_headers.SetInternally(name, val, false);
var lower = name.ToLower(CultureInfo.InvariantCulture);
if (lower == "accept")
{
_acceptTypes = new List <string> (val.SplitHeaderValue(',')).ToArray();
return;
}
if (lower == "accept-language")
{
_userLanguages = val.Split(',');
return;
}
if (lower == "content-length")
{
long length;
if (Int64.TryParse(val, out length) && length >= 0)
{
_contentLength = length;
_contentLengthWasSet = true;
}
else
{
_context.ErrorMessage = "Invalid Content-Length header";
}
return;
}
if (lower == "content-type")
{
var contents = val.Split(';');
foreach (var content in contents)
{
var tmp = content.Trim();
if (tmp.StartsWith("charset"))
{
var charset = tmp.GetValue("=");
if (charset != null && charset.Length > 0)
{
try {
_contentEncoding = Encoding.GetEncoding(charset);
}
catch {
_context.ErrorMessage = "Invalid Content-Type header";
}
}
break;
}
}
return;
}
if (lower == "referer")
{
_referer = val.ToUri();
}
}
public static HandshakeRequest Parse(string [] headerParts)
{
var requestLine = headerParts [0].Split (new [] { ' ' }, 3);
if (requestLine.Length != 3)
throw new ArgumentException ("Invalid request line: " + headerParts [0]);
var headers = new WebHeaderCollection ();
for (int i = 1; i < headerParts.Length; i++)
headers.SetInternally (headerParts [i], false);
return new HandshakeRequest {
Headers = headers,
HttpMethod = requestLine [0],
ProtocolVersion = new Version (requestLine [2].Substring (5)),
RequestUri = requestLine [1]
};
}
internal static HandshakeResponse Parse (string[] headerParts)
{
var statusLine = headerParts[0].Split (new[] { ' ' }, 3);
if (statusLine.Length != 3)
throw new ArgumentException ("Invalid status line: " + headerParts[0]);
var headers = new WebHeaderCollection ();
for (int i = 1; i < headerParts.Length; i++)
headers.SetInternally (headerParts[i], true);
var res = new HandshakeResponse (new Version (statusLine[0].Substring (5)), headers);
res._code = statusLine[1];
res._reason = statusLine[2];
return res;
}
internal static HttpRequest Parse (string[] headerParts)
{
var requestLine = headerParts[0].Split (new[] { ' ' }, 3);
if (requestLine.Length != 3)
throw new ArgumentException ("Invalid request line: " + headerParts[0]);
var headers = new WebHeaderCollection ();
for (int i = 1; i < headerParts.Length; i++)
headers.SetInternally (headerParts[i], false);
return new HttpRequest (
requestLine[0], requestLine[1], new Version (requestLine[2].Substring (5)), headers);
}
internal void AddHeader(string header)
{
var colon = header.IndexOf(':');
if (colon == -1)
{
_context.ErrorMessage = "Invalid header";
return;
}
var name = header.Substring(0, colon).Trim();
var val = header.Substring(colon + 1).Trim();
_headers.SetInternally(name, val, false);
var lower = name.ToLower(CultureInfo.InvariantCulture);
if (lower == "accept")
{
_acceptTypes = new List <string> (val.SplitHeaderValue(',')).ToArray();
return;
}
if (lower == "accept-language")
{
_userLanguages = val.Split(',');
return;
}
if (lower == "content-length")
{
long len;
if (Int64.TryParse(val, out len) && len >= 0)
{
_contentLength = len;
_contentLengthWasSet = true;
}
else
{
_context.ErrorMessage = "Invalid Content-Length header";
}
return;
}
if (lower == "content-type")
{
try {
_contentEncoding = HttpUtility.GetEncoding(val);
}
catch {
_context.ErrorMessage = "Invalid Content-Type header";
}
return;
}
if (lower == "referer")
{
_referer = val.ToUri();
}
}
