| private InternalSet ( string header, bool response ) : void | ||
| header | string | |
| response | bool | |
| return | void | |
internal void AddHeader(string header)
{
int num = header.IndexOf(':');
if (num == -1)
{
_context.ErrorMessage = "Invalid header";
return;
}
string text = header.Substring(0, num).Trim();
string text2 = header.Substring(num + 1).Trim();
_headers.InternalSet(text, text2, response: false);
switch (text.ToLower(CultureInfo.InvariantCulture))
{
case "accept":
_acceptTypes = new List <string>(text2.SplitHeaderValue(',')).ToArray();
break;
case "accept-language":
_userLanguages = text2.Split(',');
break;
case "content-length":
{
if (long.TryParse(text2, out var result) && result >= 0)
{
_contentLength = result;
_contentLengthWasSet = true;
}
else
{
_context.ErrorMessage = "Invalid Content-Length header";
}
break;
}
case "content-type":
try
{
_contentEncoding = HttpUtility.GetEncoding(text2);
}
catch
{
_context.ErrorMessage = "Invalid Content-Type header";
}
break;
case "referer":
_referer = text2.ToUri();
break;
}
}
internal WebHeaderCollection WriteHeadersTo(MemoryStream destination)
{
var headers = new WebHeaderCollection(HttpHeaderType.Response, true);
if (_headers != null)
{
headers.Add(_headers);
}
if (_contentType != null)
{
var type = _contentType.IndexOf("charset=", StringComparison.Ordinal) == -1 &&
_contentEncoding != null
? String.Format("{0}; charset={1}", _contentType, _contentEncoding.WebName)
: _contentType;
headers.InternalSet("Content-Type", type, true);
}
if (headers["Server"] == null)
{
headers.InternalSet("Server", "websocket-sharp/1.0", true);
}
var prov = CultureInfo.InvariantCulture;
if (headers["Date"] == null)
{
headers.InternalSet("Date", DateTime.UtcNow.ToString("r", prov), true);
}
if (!_sendChunked)
{
headers.InternalSet("Content-Length", _contentLength.ToString(prov), true);
}
else
{
headers.InternalSet("Transfer-Encoding", "chunked", true);
}
/*
* Apache forces closing the connection for these status codes:
* - 400 Bad Request
* - 408 Request Timeout
* - 411 Length Required
* - 413 Request Entity Too Large
* - 414 Request-Uri Too Long
* - 500 Internal Server Error
* - 503 Service Unavailable
*/
var closeConn = !_context.Request.KeepAlive ||
!_keepAlive ||
_statusCode == 400 ||
_statusCode == 408 ||
_statusCode == 411 ||
_statusCode == 413 ||
_statusCode == 414 ||
_statusCode == 500 ||
_statusCode == 503;
var reuses = _context.Connection.Reuses;
if (closeConn || reuses >= 100)
{
headers.InternalSet("Connection", "close", true);
}
else
{
headers.InternalSet(
"Keep-Alive", String.Format("timeout=15,max={0}", 100 - reuses), true);
if (_context.Request.ProtocolVersion < HttpVersion.Version11)
{
headers.InternalSet("Connection", "keep-alive", true);
}
}
if (_location != null)
{
headers.InternalSet("Location", _location, true);
}
if (_cookies != null)
{
foreach (Cookie cookie in _cookies)
{
headers.InternalSet("Set-Cookie", cookie.ToResponseString(), true);
}
}
var enc = _contentEncoding ?? Encoding.Default;
var writer = new StreamWriter(destination, enc, 256);
writer.Write("HTTP/{0} {1} {2}\r\n", _version, _statusCode, _statusDescription);
writer.Write(headers.ToStringMultiValue(true));
writer.Flush();
// Assumes that the destination was at position 0.
destination.Position = enc.GetPreamble().Length;
return(headers);
}
internal void AddHeader(string headerField)
{
var start = headerField[0];
if (start == ' ' || start == '\t')
{
_context.ErrorMessage = "Invalid header field";
return;
}
var colon = headerField.IndexOf(':');
if (colon < 1)
{
_context.ErrorMessage = "Invalid header field";
return;
}
var name = headerField.Substring(0, colon).Trim();
if (name.Length == 0 || !name.IsToken())
{
_context.ErrorMessage = "Invalid header name";
return;
}
var val = colon < headerField.Length - 1
? headerField.Substring(colon + 1).Trim()
: String.Empty;
_headers.InternalSet(name, val, false);
var lower = name.ToLower(CultureInfo.InvariantCulture);
if (lower == "host")
{
if (_userHostName != null)
{
_context.ErrorMessage = "Invalid Host header";
return;
}
if (val.Length == 0)
{
_context.ErrorMessage = "Invalid Host header";
return;
}
_userHostName = val;
return;
}
if (lower == "content-length")
{
if (_contentLength > -1)
{
_context.ErrorMessage = "Invalid Content-Length header";
return;
}
long len;
#if SSHARP
if (!Int64Ex.TryParse(val, out len))
#else
if (!Int64.TryParse(val, out len))
#endif
{
_context.ErrorMessage = "Invalid Content-Length header";
return;
}
if (len < 0)
{
_context.ErrorMessage = "Invalid Content-Length header";
return;
}
_contentLength = len;
}
}
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.InternalSet(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();
}
}
internal void WriteHeadersTo(MemoryStream destination, bool closing)
{
if (_contentType != null)
{
var type = _contentType.IndexOf("charset=", StringComparison.Ordinal) == -1 &&
_contentEncoding != null
? String.Format("{0}; charset={1}", _contentType, _contentEncoding.WebName)
: _contentType;
_headers.InternalSet("Content-Type", type, true);
}
if (_headers["Server"] == null)
{
_headers.InternalSet("Server", "websocket-sharp/1.0", true);
}
var prov = CultureInfo.InvariantCulture;
if (_headers["Date"] == null)
{
_headers.InternalSet("Date", DateTime.UtcNow.ToString("r", prov), true);
}
if (!_chunked)
{
if (!_contentLengthSet && closing)
{
_contentLengthSet = true;
_contentLength = 0;
}
if (_contentLengthSet)
{
_headers.InternalSet("Content-Length", _contentLength.ToString(prov), true);
}
else if (_context.Request.ProtocolVersion > HttpVersion.Version10)
{
_chunked = true;
}
}
if (_chunked)
{
_headers.InternalSet("Transfer-Encoding", "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 closeConn = _statusCode == 400 ||
_statusCode == 408 ||
_statusCode == 411 ||
_statusCode == 413 ||
_statusCode == 414 ||
_statusCode == 500 ||
_statusCode == 503 ||
!_context.Request.KeepAlive ||
!_keepAlive;
var reuses = _context.Connection.Reuses;
if (closeConn || reuses >= 100)
{
_headers.InternalSet("Connection", "close", true);
}
else
{
_headers.InternalSet(
"Keep-Alive", String.Format("timeout=15,max={0}", 100 - reuses), true);
if (_context.Request.ProtocolVersion < HttpVersion.Version11)
{
_headers.InternalSet("Connection", "keep-alive", true);
}
}
if (_location != null)
{
_headers.InternalSet("Location", _location, true);
}
if (_cookies != null)
{
foreach (Cookie cookie in _cookies)
{
_headers.InternalSet("Set-Cookie", cookie.ToResponseString(), true);
}
}
var enc = _contentEncoding ?? Encoding.Default;
var writer = new StreamWriter(destination, enc, 256);
writer.Write("HTTP/{0} {1} {2}\r\n", _version, _statusCode, _statusDescription);
writer.Write(_headers.ToStringMultiValue(true));
writer.Flush();
// Assumes that the destination was at position 0.
destination.Position = enc.CodePage == 65001 ? 3 : enc.GetPreamble().Length;
}
internal static HttpResponse 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.InternalSet (headerParts[i], true);
return new HttpResponse (
statusLine[1], statusLine[2], new Version (statusLine[0].Substring (5)), headers);
}
internal void SendHeaders(MemoryStream stream, bool closing)
{
if (_contentType != null)
{
string value = ((_contentType.IndexOf("charset=", StringComparison.Ordinal) != -1 || _contentEncoding == null) ? _contentType : $"{_contentType}; charset={_contentEncoding.WebName}");
_headers.InternalSet("Content-Type", value, response: true);
}
if (_headers["Server"] == null)
{
_headers.InternalSet("Server", "websocket-sharp/1.0", response: true);
}
CultureInfo invariantCulture = CultureInfo.InvariantCulture;
if (_headers["Date"] == null)
{
_headers.InternalSet("Date", DateTime.UtcNow.ToString("r", invariantCulture), response: true);
}
if (!_chunked)
{
if (!_contentLengthWasSet && closing)
{
_contentLengthWasSet = true;
_contentLength = 0L;
}
if (_contentLengthWasSet)
{
_headers.InternalSet("Content-Length", _contentLength.ToString(invariantCulture), response: true);
}
}
Version protocolVersion = _context.Request.ProtocolVersion;
if (!_contentLengthWasSet && !_chunked && protocolVersion > HttpVersion.Version10)
{
_chunked = true;
}
bool flag = _statusCode == 400 || _statusCode == 408 || _statusCode == 411 || _statusCode == 413 || _statusCode == 414 || _statusCode == 500 || _statusCode == 503;
if (!flag)
{
flag = !_context.Request.KeepAlive;
}
if (!_keepAlive || flag)
{
_headers.InternalSet("Connection", "close", response: true);
flag = true;
}
if (_chunked)
{
_headers.InternalSet("Transfer-Encoding", "chunked", response: true);
}
int reuses = _context.Connection.Reuses;
if (reuses >= 100)
{
_forceCloseChunked = true;
if (!flag)
{
_headers.InternalSet("Connection", "close", response: true);
flag = true;
}
}
if (!flag)
{
_headers.InternalSet("Keep-Alive", $"timeout=15,max={100 - reuses}", response: true);
if (protocolVersion < HttpVersion.Version11)
{
_headers.InternalSet("Connection", "keep-alive", response: true);
}
}
if (_location != null)
{
_headers.InternalSet("Location", _location, response: true);
}
if (_cookies != null)
{
IEnumerator enumerator = _cookies.GetEnumerator();
try
{
while (enumerator.MoveNext())
{
Cookie cookie = (Cookie)enumerator.Current;
_headers.InternalSet("Set-Cookie", cookie.ToResponseString(), response: true);
}
}
finally
{
IDisposable disposable;
if ((disposable = enumerator as IDisposable) != null)
{
disposable.Dispose();
}
}
}
Encoding encoding = _contentEncoding ?? Encoding.Default;
StreamWriter streamWriter = new StreamWriter(stream, encoding, 256);
streamWriter.Write("HTTP/{0} {1} {2}\r\n", _version, _statusCode, _statusDescription);
streamWriter.Write(_headers.ToStringMultiValue(response: true));
streamWriter.Flush();
stream.Position = ((encoding.CodePage != 65001) ? encoding.GetPreamble().Length : 3);
if (_outputStream == null)
{
_outputStream = _context.Connection.GetResponseStream();
}
_headersWereSent = true;
}
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.InternalSet (headerParts[i], false);
return new HttpRequest (
requestLine[0], requestLine[1], new Version (requestLine[2].Substring (5)), headers);
}
internal void AddHeader(string headerField)
{
var colon = headerField.IndexOf(':');
if (colon < 1)
{
_context.ErrorMessage = "Invalid header field";
return;
}
var name = headerField.Substring(0, colon).Trim();
if (name.Length == 0 || !name.IsToken())
{
_context.ErrorMessage = "Invalid header name";
return;
}
var val = colon < headerField.Length - 1
? headerField.Substring(colon + 1).Trim()
: String.Empty;
_headers.InternalSet(name, val, false);
var lower = name.ToLower(CultureInfo.InvariantCulture);
if (lower == "accept")
{
_acceptTypes = val.SplitHeaderValue(',').ToList().ToArray();
return;
}
if (lower == "accept-language")
{
_userLanguages = val.Split(',');
return;
}
if (lower == "content-length")
{
long len;
if (!Int64.TryParse(val, out len) || len < 0)
{
_context.ErrorMessage = "Invalid Content-Length header";
return;
}
_contentLength = len;
_contentLengthSet = true;
return;
}
if (lower == "content-type")
{
try {
_contentEncoding = HttpUtility.GetEncoding(val);
}
catch {
_context.ErrorMessage = "Invalid Content-Type header";
}
return;
}
if (lower == "referer")
{
var referer = val.ToUri();
if (referer == null)
{
_context.ErrorMessage = "Invalid Referer header";
return;
}
_referer = referer;
return;
}
}
internal WebHeaderCollection WriteHeadersTo (MemoryStream destination)
{
var headers = new WebHeaderCollection (HttpHeaderType.Response, true);
if (_headers != null)
headers.Add (_headers);
if (_contentType != null) {
var type = _contentType.IndexOf ("charset=", StringComparison.Ordinal) == -1 &&
_contentEncoding != null
? String.Format ("{0}; charset={1}", _contentType, _contentEncoding.WebName)
: _contentType;
headers.InternalSet ("Content-Type", type, true);
}
if (headers["Server"] == null)
headers.InternalSet ("Server", "websocket-sharp/1.0", true);
var prov = CultureInfo.InvariantCulture;
if (headers["Date"] == null)
headers.InternalSet ("Date", DateTime.UtcNow.ToString ("r", prov), true);
if (!_sendChunked)
headers.InternalSet ("Content-Length", _contentLength.ToString (prov), true);
else
headers.InternalSet ("Transfer-Encoding", "chunked", true);
/*
* Apache forces closing the connection for these status codes:
* - 400 Bad Request
* - 408 Request Timeout
* - 411 Length Required
* - 413 Request Entity Too Large
* - 414 Request-Uri Too Long
* - 500 Internal Server Error
* - 503 Service Unavailable
*/
var closeConn = !_context.Request.KeepAlive ||
!_keepAlive ||
_statusCode == 400 ||
_statusCode == 408 ||
_statusCode == 411 ||
_statusCode == 413 ||
_statusCode == 414 ||
_statusCode == 500 ||
_statusCode == 503;
var reuses = _context.Connection.Reuses;
if (closeConn || reuses >= 100) {
headers.InternalSet ("Connection", "close", true);
}
else {
headers.InternalSet (
"Keep-Alive", String.Format ("timeout=15,max={0}", 100 - reuses), true);
if (_context.Request.ProtocolVersion < HttpVersion.Version11)
headers.InternalSet ("Connection", "keep-alive", true);
}
if (_location != null)
headers.InternalSet ("Location", _location, true);
if (_cookies != null)
foreach (Cookie cookie in _cookies)
headers.InternalSet ("Set-Cookie", cookie.ToResponseString (), true);
var enc = _contentEncoding ?? Encoding.Default;
var writer = new StreamWriter (destination, enc, 256);
writer.Write ("HTTP/{0} {1} {2}\r\n", _version, _statusCode, _statusDescription);
writer.Write (headers.ToStringMultiValue (true));
writer.Flush ();
// Assumes that the destination was at position 0.
destination.Position = enc.GetPreamble ().Length;
return headers;
}