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Refactored some classes in WebSocketSharp.Net namespace

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This commit is contained in:
sta 2013-07-01 12:00:10 +09:00
parent 5a5874b90f
commit 11c576a8c7
4 changed files with 564 additions and 550 deletions
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13
websocket-sharp/Ext.cs
View File

@ -507,6 +507,19 @@ namespace WebSocketSharp {
}
}
internal static string Unquote(this string value)
{
var start = value.IndexOf('\"');
var end = value.LastIndexOf('\"');
if (start < end)
{
value = value.Substring(start + 1, end - start - 1)
.Replace("\\\"", "\"");
}
return value.Trim();
}
internal static void WriteBytes(this Stream stream, byte[] value)
{
using (var input = new MemoryStream(value))

472
websocket-sharp/Net/HttpConnection.cs
View File

@ -1,3 +1,4 @@
#region License
//
// HttpConnection.cs
// Copied from System.Net.HttpConnection.cs
@ -6,7 +7,7 @@
// Gonzalo Paniagua Javier (gonzalo@novell.com)
//
// Copyright (c) 2005 Novell, Inc. (http://www.novell.com)
// Copyright (c) 2012 sta.blockhead (sta.blockhead@gmail.com)
// Copyright (c) 2012-2013 sta.blockhead (sta.blockhead@gmail.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
@ -27,6 +28,7 @@
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
#endregion
using System;
using System.IO;
@ -41,7 +43,7 @@ using WebSocketSharp.Net.Security;
namespace WebSocketSharp.Net {
sealed class HttpConnection {
internal sealed class HttpConnection {
#region Enums
@ -60,170 +62,176 @@ namespace WebSocketSharp.Net {
#region Private Const Field
const int BufferSize = 8192;
#endregion
#region Private Static Field
static AsyncCallback onread_cb = new AsyncCallback (OnRead);
private const int BufferSize = 8192;
#endregion
#region Private Fields
byte [] buffer;
bool chunked;
HttpListenerContext context;
bool context_bound;
StringBuilder current_line;
EndPointListener epl;
InputState input_state;
RequestStream i_stream;
AsymmetricAlgorithm key;
HttpListener last_listener;
LineState line_state;
// IPEndPoint local_ep; // never used
MemoryStream ms;
ResponseStream o_stream;
int position;
ListenerPrefix prefix;
int reuses;
bool secure;
Socket sock;
Stream stream;
int s_timeout;
Timer timer;
private byte [] _buffer;
private bool _chunked;
private HttpListenerContext _context;
private bool _contextWasBound;
private StringBuilder _currentLine;
private EndPointListener _epListener;
private InputState _inputState;
private RequestStream _inputStream;
private AsymmetricAlgorithm _key;
private HttpListener _lastListener;
private LineState _lineState;
private ResponseStream _outputStream;
private int _position;
private ListenerPrefix _prefix;
private MemoryStream _requestBuffer;
private int _reuses;
private bool _secure;
private Socket _socket;
private Stream _stream;
private int _timeout;
private Timer _timer;
#endregion
#region Constructor
#region Public Constructors
public HttpConnection (
Socket sock,
EndPointListener epl,
Socket socket,
EndPointListener listener,
bool secure,
X509Certificate2 cert,
AsymmetricAlgorithm key
)
AsymmetricAlgorithm key)
{
this.sock = sock;
this.epl = epl;
this.secure = secure;
this.key = key;
// if (secure == false) {
// stream = new NetworkStream (sock, false);
// } else {
// var ssl_stream = new SslServerStream (new NetworkStream (sock, false), cert, false, false);
// ssl_stream.PrivateKeyCertSelectionDelegate += OnPVKSelection;
// stream = ssl_stream;
// }
var net_stream = new NetworkStream (sock, false);
_socket = socket;
_epListener = listener;
_secure = secure;
_key = key;
var netStream = new NetworkStream (socket, false);
if (!secure) {
stream = net_stream;
_stream = netStream;
} else {
var ssl_stream = new SslStream(net_stream, false);
ssl_stream.AuthenticateAsServer(cert);
stream = ssl_stream;
var sslStream = new SslStream (netStream, false);
sslStream.AuthenticateAsServer (cert);
_stream = sslStream;
}
timer = new Timer (OnTimeout, null, Timeout.Infinite, Timeout.Infinite);
_timer = new Timer (OnTimeout, null, Timeout.Infinite, Timeout.Infinite);
Init ();
}
#endregion
#region Properties
#region Public Properties
public bool IsClosed {
get { return (sock == null); }
get {
return _socket == null;
}
}
public bool IsSecure {
get { return secure; }
get {
return _secure;
}
}
public IPEndPoint LocalEndPoint {
get { return (IPEndPoint) sock.LocalEndPoint; }
get {
return (IPEndPoint) _socket.LocalEndPoint;
}
}
public ListenerPrefix Prefix {
get { return prefix; }
set { prefix = value; }
get {
return _prefix;
}
set {
_prefix = value;
}
}
public IPEndPoint RemoteEndPoint {
get { return (IPEndPoint) sock.RemoteEndPoint; }
get {
return (IPEndPoint) _socket.RemoteEndPoint;
}
}
public int Reuses {
get { return reuses; }
get {
return _reuses;
}
}
public Stream Stream {
get { return stream; }
get {
return _stream;
}
}
#endregion
#region Private Methods
void CloseSocket ()
private void CloseSocket ()
{
if (sock == null)
if (_socket == null)
return;
try {
sock.Close ();
_socket.Close ();
} catch {
} finally {
sock = null;
_socket = null;
}
RemoveConnection ();
}
void Init ()
private void Init ()
{
context_bound = false;
i_stream = null;
o_stream = null;
prefix = null;
chunked = false;
ms = new MemoryStream ();
position = 0;
input_state = InputState.RequestLine;
line_state = LineState.None;
context = new HttpListenerContext (this);
s_timeout = 90000; // 90k ms for first request, 15k ms from then on
_chunked = false;
_context = new HttpListenerContext (this);
_contextWasBound = false;
_inputState = InputState.RequestLine;
_inputStream = null;
_lineState = LineState.None;
_outputStream = null;
_position = 0;
_prefix = null;
_requestBuffer = new MemoryStream ();
_timeout = 90000; // 90k ms for first request, 15k ms from then on.
}
AsymmetricAlgorithm OnPVKSelection (X509Certificate certificate, string targetHost)
private AsymmetricAlgorithm OnPVKSelection (X509Certificate certificate, string targetHost)
{
return key;
return _key;
}
static void OnRead (IAsyncResult ares)
private static void OnRead (IAsyncResult asyncResult)
{
HttpConnection cnc = (HttpConnection) ares.AsyncState;
cnc.OnReadInternal (ares);
var conn = (HttpConnection) asyncResult.AsyncState;
conn.OnReadInternal (asyncResult);
}
void OnReadInternal (IAsyncResult ares)
private void OnReadInternal (IAsyncResult asyncResult)
{
timer.Change (Timeout.Infinite, Timeout.Infinite);
int nread = -1;
_timer.Change (Timeout.Infinite, Timeout.Infinite);
var nread = -1;
try {
nread = stream.EndRead (ares);
ms.Write (buffer, 0, nread);
if (ms.Length > 32768) {
SendError ("Bad request", 400);
nread = _stream.EndRead (asyncResult);
_requestBuffer.Write (_buffer, 0, nread);
if (_requestBuffer.Length > 32768) {
SendError ();
Close (true);
return;
}
} catch {
if (ms != null && ms.Length > 0)
if (_requestBuffer != null && _requestBuffer.Length > 0)
SendError ();
if (sock != null) {
if (_socket != null) {
CloseSocket ();
Unbind ();
}
@ -232,156 +240,140 @@ namespace WebSocketSharp.Net {
}
if (nread == 0) {
//if (ms.Length > 0)
//if (_requestBuffer.Length > 0)
// SendError (); // Why bother?
CloseSocket ();
Unbind ();
return;
}
if (ProcessInput (ms)) {
if (!context.HaveError)
context.Request.FinishInitialization ();
if (ProcessInput (_requestBuffer.GetBuffer ())) {
if (!_context.HaveError)
_context.Request.FinishInitialization ();
if (context.HaveError) {
if (_context.HaveError) {
SendError ();
Close (true);
return;
}
if (!epl.BindContext (context)) {
if (!_epListener.BindContext (_context)) {
SendError ("Invalid host", 400);
Close (true);
return;
}
HttpListener listener = context.Listener;
if (last_listener != listener) {
var listener = _context.Listener;
if (_lastListener != listener) {
RemoveConnection ();
listener.AddConnection (this);
last_listener = listener;
_lastListener = listener;
}
context_bound = true;
listener.RegisterContext (context);
listener.RegisterContext (_context);
_contextWasBound = true;
return;
}
stream.BeginRead (buffer, 0, BufferSize, onread_cb, this);
_stream.BeginRead (_buffer, 0, BufferSize, OnRead, this);
}
void OnTimeout (object unused)
private void OnTimeout (object unused)
{
CloseSocket ();
Unbind ();
}
// true -> done processing
// false -> need more input
bool ProcessInput (MemoryStream ms)
// true -> Done processing.
// false -> Need more input.
private bool ProcessInput (byte [] data)
{
byte [] buffer = ms.GetBuffer ();
int len = (int) ms.Length;
int used = 0;
var length = data.Length;
var used = 0;
string line;
try {
line = ReadLine (buffer, position, len - position, ref used);
position += used;
} catch {
context.ErrorMessage = "Bad request";
context.ErrorStatus = 400;
while ((line = ReadLine (data, _position, length - _position, ref used)) != null) {
_position += used;
if (line.Length == 0) {
if (_inputState == InputState.RequestLine)
continue;
_currentLine = null;
return true;
}
if (_inputState == InputState.RequestLine) {
_context.Request.SetRequestLine (line);
_inputState = InputState.Headers;
} else {
_context.Request.AddHeader (line);
}
if (_context.HaveError)
return true;
}
} catch (Exception e) {
_context.ErrorMessage = e.Message;
return true;
}
do {
if (line == null)
break;
if (line == "") {
if (input_state == InputState.RequestLine)
continue;
current_line = null;
ms = null;
return true;
}
if (input_state == InputState.RequestLine) {
context.Request.SetRequestLine (line);
input_state = InputState.Headers;
} else {
try {
context.Request.AddHeader (line);
} catch (Exception e) {
context.ErrorMessage = e.Message;
context.ErrorStatus = 400;
return true;
}
}
if (context.HaveError)
return true;
if (position >= len)
break;
try {
line = ReadLine (buffer, position, len - position, ref used);
position += used;
} catch {
context.ErrorMessage = "Bad request";
context.ErrorStatus = 400;
return true;
}
} while (line != null);
if (used == len) {
ms.SetLength (0);
position = 0;
_position += used;
if (used == length) {
_requestBuffer.SetLength (0);
_position = 0;
}
return false;
}
string ReadLine (byte [] buffer, int offset, int len, ref int used)
private string ReadLine (byte [] buffer, int offset, int length, ref int used)
{
if (current_line == null)
current_line = new StringBuilder ();
if (_currentLine == null)
_currentLine = new StringBuilder ();
int last = offset + len;
var last = offset + length;
used = 0;
for (int i = offset; i < last && line_state != LineState.LF; i++) {
for (int i = offset; i < last && _lineState != LineState.LF; i++) {
used++;
byte b = buffer [i];
var b = buffer [i];
if (b == 13) {
line_state = LineState.CR;
} else if (b == 10) {
line_state = LineState.LF;
} else {
current_line.Append ((char) b);
_lineState = LineState.CR;
}
else if (b == 10) {
_lineState = LineState.LF;
}
else {
_currentLine.Append ((char) b);
}
}
string result = null;
if (line_state == LineState.LF) {
line_state = LineState.None;
result = current_line.ToString ();
current_line.Length = 0;
if (_lineState == LineState.LF) {
_lineState = LineState.None;
result = _currentLine.ToString ();
_currentLine.Length = 0;
}
return result;
}
void RemoveConnection ()
private void RemoveConnection ()
{
if (last_listener == null)
epl.RemoveConnection (this);
if (_lastListener == null)
_epListener.RemoveConnection (this);
else
last_listener.RemoveConnection (this);
_lastListener.RemoveConnection (this);
}
void Unbind ()
private void Unbind ()
{
if (context_bound) {
epl.UnbindContext (context);
context_bound = false;
if (_contextWasBound) {
_epListener.UnbindContext (_context);
_contextWasBound = false;
}
}
@ -389,49 +381,51 @@ namespace WebSocketSharp.Net {
#region Internal Method
internal void Close (bool force_close)
internal void Close (bool force)
{
if (sock != null) {
Stream st = GetResponseStream ();
st.Close ();
o_stream = null;
}
if (_socket != null) {
if (_outputStream != null) {
_outputStream.Close ();
_outputStream = null;
}
if (sock != null) {
force_close |= !context.Request.KeepAlive;
if (!force_close)
force_close = (context.Response.Headers ["connection"] == "close");
force |= !_context.Request.KeepAlive;
if (!force)
force = _context.Response.Headers ["Connection"] == "close";
if (!force_close && context.Request.FlushInput ()) {
if (chunked && context.Response.ForceCloseChunked == false) {
if (!force && _context.Request.FlushInput ()) {
if (_chunked && !_context.Response.ForceCloseChunked) {
// Don't close. Keep working.
reuses++;
_reuses++;
Unbind ();
Init ();
BeginReadRequest ();
return;
}
reuses++;
Unbind ();
Init ();
BeginReadRequest ();
return;
// _reuses++;
// Unbind ();
// Init ();
// BeginReadRequest ();
//
// return;
}
Socket s = sock;
sock = null;
var socket = _socket;
_socket = null;
try {
if (s != null)
s.Shutdown (SocketShutdown.Both);
if (socket != null)
socket.Shutdown (SocketShutdown.Both);
} catch {
} finally {
if (s != null)
s.Close ();
if (socket != null)
socket.Close ();
}
Unbind ();
RemoveConnection ();
return;
}
}
@ -442,17 +436,17 @@ namespace WebSocketSharp.Net {
public void BeginReadRequest ()
{
if (buffer == null)
buffer = new byte [BufferSize];
if (_buffer == null)
_buffer = new byte [BufferSize];
try {
if (reuses == 1)
s_timeout = 15000;
if (_reuses == 1)
_timeout = 15000;
timer.Change (s_timeout, Timeout.Infinite);
stream.BeginRead (buffer, 0, BufferSize, onread_cb, this);
_timer.Change (_timeout, Timeout.Infinite);
_stream.BeginRead (_buffer, 0, BufferSize, OnRead, this);
} catch {
timer.Change (Timeout.Infinite, Timeout.Infinite);
_timer.Change (Timeout.Infinite, Timeout.Infinite);
CloseSocket ();
Unbind ();
}
@ -465,56 +459,54 @@ namespace WebSocketSharp.Net {
public RequestStream GetRequestStream (bool chunked, long contentlength)
{
if (i_stream == null) {
byte [] buffer = ms.GetBuffer ();
int length = (int) ms.Length;
ms = null;
if (_inputStream == null) {
var buffer = _requestBuffer.GetBuffer ();
var length = buffer.Length;
_requestBuffer = null;
if (chunked) {
this.chunked = true;
context.Response.SendChunked = true;
i_stream = new ChunkedInputStream (context, stream, buffer, position, length - position);
_chunked = true;
_context.Response.SendChunked = true;
_inputStream = new ChunkedInputStream (_context, _stream, buffer, _position, length - _position);
} else {
i_stream = new RequestStream (stream, buffer, position, length - position, contentlength);
_inputStream = new RequestStream (_stream, buffer, _position, length - _position, contentlength);
}
}
return i_stream;
return _inputStream;
}
public ResponseStream GetResponseStream ()
{
// TODO: can we get this stream before reading the input?
if (o_stream == null) {
HttpListener listener = context.Listener;
bool ign = (listener == null) ? true : listener.IgnoreWriteExceptions;
o_stream = new ResponseStream (stream, context.Response, ign);
// TODO: Can we get this stream before reading the input?
if (_outputStream == null) {
var listener = _context.Listener;
var ignore = listener == null ? true : listener.IgnoreWriteExceptions;
_outputStream = new ResponseStream (_stream, _context.Response, ignore);
}
return o_stream;
return _outputStream;
}
public void SendError ()
{
SendError (context.ErrorMessage, context.ErrorStatus);
SendError (_context.ErrorMessage, _context.ErrorStatus);
}
public void SendError (string msg, int status)
public void SendError (string message, int status)
{
try {
HttpListenerResponse response = context.Response;
var response = _context.Response;
response.StatusCode = status;
response.ContentType = "text/html";
string description = status.GetStatusDescription ();
string str;
if (msg != null)
str = String.Format ("<h1>{0} ({1})</h1>", description, msg);
else
str = String.Format ("<h1>{0}</h1>", description);
var description = status.GetStatusDescription ();
var error = !message.IsNullOrEmpty ()
? String.Format ("<h1>{0} ({1})</h1>", description, message)
: String.Format ("<h1>{0}</h1>", description);
byte [] error = context.Response.ContentEncoding.GetBytes (str);
response.Close (error, false);
var entity = _context.Response.ContentEncoding.GetBytes (error);
response.Close (entity, false);
} catch {
// response was already closed
// Response was already closed.
}
}

116
websocket-sharp/Net/HttpListenerContext.cs
View File

@ -1,3 +1,4 @@
#region License
//
// HttpListenerContext.cs
// Copied from System.Net.HttpListenerContext.cs
@ -27,6 +28,7 @@
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
#endregion
using System;
using System.Collections.Specialized;
@ -47,12 +49,12 @@ namespace WebSocketSharp.Net {
#region Private Fields
HttpConnection cnc;
string error;
int err_status;
HttpListenerRequest request;
HttpListenerResponse response;
IPrincipal user;
private HttpConnection _connection;
private string _error;
private int _errorStatus;
private HttpListenerRequest _request;
private HttpListenerResponse _response;
private IPrincipal _user;
#endregion
@ -64,12 +66,12 @@ namespace WebSocketSharp.Net {
#region Constructor
internal HttpListenerContext (HttpConnection cnc)
internal HttpListenerContext (HttpConnection connection)
{
this.cnc = cnc;
err_status = 400;
request = new HttpListenerRequest (this);
response = new HttpListenerResponse (this);
_connection = connection;
_errorStatus = 400;
_request = new HttpListenerRequest (this);
_response = new HttpListenerResponse (this);
}
#endregion
@ -77,21 +79,35 @@ namespace WebSocketSharp.Net {
#region Internal Properties
internal HttpConnection Connection {
get { return cnc; }
get {
return _connection;
}
}
internal string ErrorMessage {
get { return error; }
set { error = value; }
get {
return _error;
}
set {
_error = value;
}
}
internal int ErrorStatus {
get { return err_status; }
set { err_status = value; }
get {
return _errorStatus;
}
set {
_errorStatus = value;
}
}
internal bool HaveError {
get { return (error != null); }
get {
return _error != null;
}
}
#endregion
@ -105,7 +121,9 @@ namespace WebSocketSharp.Net {
/// A <see cref="HttpListenerRequest"/> that contains the HTTP request objects.
/// </value>
public HttpListenerRequest Request {
get { return request; }
get {
return _request;
}
}
/// <summary>
@ -116,7 +134,9 @@ namespace WebSocketSharp.Net {
/// A <see cref="HttpListenerResponse"/> that contains the HTTP response objects.
/// </value>
public HttpListenerResponse Response {
get { return response; }
get {
return _response;
}
}
/// <summary>
@ -126,7 +146,9 @@ namespace WebSocketSharp.Net {
/// A <see cref="IPrincipal"/> contains the client information.
/// </value>
public IPrincipal User {
get { return user; }
get {
return _user;
}
}
#endregion
@ -138,54 +160,40 @@ namespace WebSocketSharp.Net {
if (expectedSchemes == AuthenticationSchemes.Anonymous)
return;
// TODO: Handle NTLM/Digest modes
string header = request.Headers ["Authorization"];
// TODO: Handle NTLM/Digest modes.
var header = _request.Headers ["Authorization"];
if (header == null || header.Length < 2)
return;
string [] authenticationData = header.Split (new char [] {' '}, 2);
if (string.Compare (authenticationData [0], "basic", true) == 0) {
user = ParseBasicAuthentication (authenticationData [1]);
}
// TODO: throw if malformed -> 400 bad request
var authData = header.Split (new char [] {' '}, 2);
if (authData [0].ToLower () == "basic")
_user = ParseBasicAuthentication (authData [1]);
// TODO: Throw if malformed -> 400 bad request.
}
internal IPrincipal ParseBasicAuthentication (string authData)
{
try {
// Basic AUTH Data is a formatted Base64 String
//string domain = null;
string user = null;
string password = null;
int pos = -1;
string authString = Encoding.Default.GetString (Convert.FromBase64String (authData));
// HTTP Basic Authentication data is a formatted Base64 string.
var authString = Encoding.Default.GetString (Convert.FromBase64String (authData));
// The format is DOMAIN\username:password
// Domain is optional
// The format is domain\username:password.
// Domain is optional.
pos = authString.IndexOf (':');
var pos = authString.IndexOf (':');
var user = authString.Substring (0, pos);
var password = authString.Substring (pos + 1);
// parse the password off the end
password = authString.Substring (pos+1);
// discard the password
authString = authString.Substring (0, pos);
// check if there is a domain
pos = authString.IndexOf ('\\');
if (pos > 0) {
//domain = authString.Substring (0, pos);
user = authString.Substring (pos);
} else {
user = authString;
}
// Check if there is a domain.
pos = user.IndexOf ('\\');
if (pos > 0)
user = user.Substring (pos + 1);
var identity = new System.Net.HttpListenerBasicIdentity (user, password);
// TODO: What are the roles MS sets
// TODO: What are the roles MS sets?
return new GenericPrincipal (identity, new string [0]);
} catch (Exception) {
// Invalid auth data is swallowed silently
} catch {
return null;
}
}

513
websocket-sharp/Net/HttpListenerRequest.cs
View File

@ -1,3 +1,4 @@
#region License
//
// HttpListenerRequest.cs
// Copied from System.Net.HttpListenerRequest.cs
@ -27,12 +28,14 @@
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
#endregion
using System;
using System.Collections;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Net;
using System.Security.Cryptography.X509Certificates;
using System.Text;
@ -49,58 +52,60 @@ namespace WebSocketSharp.Net {
#region Private Static Fields
static char [] separators = new char [] { ' ' };
static byte [] _100continue = Encoding.ASCII.GetBytes ("HTTP/1.1 100 Continue\r\n\r\n");
private static byte [] _100continue = Encoding.ASCII.GetBytes ("HTTP/1.1 100 Continue\r\n\r\n");
#endregion
#region Private Fields
string [] accept_types;
// int client_cert_error;
bool cl_set;
Encoding content_encoding;
long content_length;
HttpListenerContext context;
CookieCollection cookies;
WebHeaderCollection headers;
Stream input_stream;
bool is_chunked;
bool ka_set;
bool keep_alive;
string method;
// bool no_get_certificate;
Version version;
NameValueCollection query_string; // check if null is ok, check if read-only, check case-sensitiveness
string raw_url;
Uri referrer;
Uri url;
string [] user_languages;
private string [] _acceptTypes;
private bool _chunked;
private Encoding _contentEncoding;
private long _contentLength;
private bool _contentLengthWasSet;
private HttpListenerContext _context;
private CookieCollection _cookies;
private WebHeaderCollection _headers;
private Guid _identifier;
private Stream _inputStream;
private bool _keepAlive;
private bool _keepAliveWasSet;
private string _method;
private NameValueCollection _queryString;
private string _rawUrl;
private Uri _referer;
private Uri _url;
private string [] _userLanguages;
private Version _version;
#endregion
#region Constructor
#region Internal Constructors
internal HttpListenerRequest (HttpListenerContext context)
{
this.context = context;
headers = new WebHeaderCollection ();
version = HttpVersion.Version10;
_context = context;
_contentLength = -1;
_headers = new WebHeaderCollection ();
_identifier = Guid.NewGuid ();
_version = HttpVersion.Version10;
}
#endregion
#region Properties
#region Public Properties
/// <summary>
/// Gets the media types which are acceptable for the response.
/// </summary>
/// <value>
/// An array of <see cref="string"/> that contains the media type names in the Accept request-header field
/// An array of <see cref="string"/> that contains the media type names in the Accept request-header
/// or <see langword="null"/> if the request did not include an Accept header.
/// </value>
public string [] AcceptTypes {
get { return accept_types; }
get {
return _acceptTypes;
}
}
/// <summary>
@ -110,12 +115,13 @@ namespace WebSocketSharp.Net {
/// Always returns <c>0</c>.
/// </value>
public int ClientCertificateError {
// TODO: Always returns 0
get {
// TODO: Always returns 0.
/*
if (no_get_certificate)
throw new InvalidOperationException (
"Call GetClientCertificate() before calling this method.");
"Call GetClientCertificate method before accessing this property.");
return client_cert_error;
*/
return 0;
@ -123,17 +129,18 @@ namespace WebSocketSharp.Net {
}
/// <summary>
/// Gets the encoding that can be used with the entity body data included in the request.
/// Gets the encoding used with the entity body data included in the request.
/// </summary>
/// <value>
/// A <see cref="Encoding"/> that contains the encoding that can be used with the entity body data.
/// A <see cref="Encoding"/> that indicates the encoding used with the entity body data
/// or <see cref="Encoding.Default"/> if the request did not include the information about the encoding.
/// </value>
public Encoding ContentEncoding {
// TODO: Always returns Encoding.Default
get {
if (content_encoding == null)
content_encoding = Encoding.Default;
return content_encoding;
if (_contentEncoding == null)
_contentEncoding = Encoding.Default;
return _contentEncoding;
}
}
@ -141,21 +148,25 @@ namespace WebSocketSharp.Net {
/// Gets the size of the entity body data included in the request.
/// </summary>
/// <value>
/// A <see cref="long"/> that contains the value of the Content-Length entity-header field.
/// A <see cref="long"/> that contains the value of the Content-Length entity-header.
/// The value is a number of bytes in the entity body data. <c>-1</c> if the size is not known.
/// </value>
public long ContentLength64 {
get { return content_length; }
get {
return _contentLength;
}
}
/// <summary>
/// Gets the media type of the entity body included in the request.
/// </summary>
/// <value>
/// A <see cref="string"/> that contains the value of the Content-Type entity-header field.
/// A <see cref="string"/> that contains the value of the Content-Type entity-header.
/// </value>
public string ContentType {
get { return headers ["content-type"]; }
get {
return _headers ["Content-Type"];
}
}
/// <summary>
@ -166,10 +177,10 @@ namespace WebSocketSharp.Net {
/// </value>
public CookieCollection Cookies {
get {
// TODO: check if the collection is read-only
if (cookies == null)
cookies = new CookieCollection ();
return cookies;
if (_cookies == null)
_cookies = _headers.GetCookies (false);
return _cookies;
}
}
@ -180,7 +191,9 @@ namespace WebSocketSharp.Net {
/// <c>true</c> if the request has the entity body; otherwise, <c>false</c>.
/// </value>
public bool HasEntityBody {
get { return (content_length > 0 || is_chunked); }
get {
return _contentLength > 0 || _chunked;
}
}
/// <summary>
@ -190,7 +203,9 @@ namespace WebSocketSharp.Net {
/// A <see cref="NameValueCollection"/> that contains the HTTP headers used in the request.
/// </value>
public NameValueCollection Headers {
get { return headers; }
get {
return _headers;
}
}
/// <summary>
@ -200,7 +215,9 @@ namespace WebSocketSharp.Net {
/// A <see cref="string"/> that contains the HTTP method used in the request.
/// </value>
public string HttpMethod {
get { return method; }
get {
return _method;
}
}
/// <summary>
@ -211,14 +228,12 @@ namespace WebSocketSharp.Net {
/// </value>
public Stream InputStream {
get {
if (input_stream == null) {
if (is_chunked || content_length > 0)
input_stream = context.Connection.GetRequestStream (is_chunked, content_length);
else
input_stream = Stream.Null;
}
if (_inputStream == null)
_inputStream = HasEntityBody
? _context.Connection.GetRequestStream (_chunked, _contentLength)
: Stream.Null;
return input_stream;
return _inputStream;
}
}
@ -229,8 +244,10 @@ namespace WebSocketSharp.Net {
/// Always returns <c>false</c>.
/// </value>
public bool IsAuthenticated {
// TODO: Always returns false
get { return false; }
get {
// TODO: Always returns false.
return false;
}
}
/// <summary>
@ -240,7 +257,9 @@ namespace WebSocketSharp.Net {
/// <c>true</c> if the request is sent from the local computer; otherwise, <c>false</c>.
/// </value>
public bool IsLocal {
get { return RemoteEndPoint.Address.IsLocal(); }
get {
return RemoteEndPoint.Address.IsLocal ();
}
}
/// <summary>
@ -250,7 +269,9 @@ namespace WebSocketSharp.Net {
/// <c>true</c> if the HTTP connection is secured; otherwise, <c>false</c>.
/// </value>
public bool IsSecureConnection {
get { return context.Connection.IsSecure; }
get {
return _context.Connection.IsSecure;
}
}
/// <summary>
@ -261,19 +282,19 @@ namespace WebSocketSharp.Net {
/// </value>
public bool IsWebSocketRequest {
get {
return method != "GET"
return _method != "GET"
? false
: version < HttpVersion.Version11
: _version < HttpVersion.Version11
? false
: !headers.Contains("Upgrade", "websocket")
: !_headers.Contains("Upgrade", "websocket")
? false
: !headers.Contains("Connection", "Upgrade")
: !_headers.Contains("Connection", "Upgrade")
? false
: !headers.Contains("Host")
: !_headers.Contains("Host")
? false
: !headers.Contains("Sec-WebSocket-Key")
: !_headers.Contains("Sec-WebSocket-Key")
? false
: headers.Contains("Sec-WebSocket-Version");
: _headers.Contains("Sec-WebSocket-Version");
}
}
@ -285,24 +306,17 @@ namespace WebSocketSharp.Net {
/// </value>
public bool KeepAlive {
get {
if (ka_set)
return keep_alive;
if (!_keepAliveWasSet) {
_keepAlive = _headers.Contains ("Connection", "keep-alive") || _version == HttpVersion.Version11
? true
: _headers.Contains ("Keep-Alive")
? !_headers.Contains ("Keep-Alive", "closed")
: false;
ka_set = true;
// 1. Connection header
// 2. Protocol (1.1 == keep-alive by default)
// 3. Keep-Alive header
string cnc = headers ["Connection"];
if (!String.IsNullOrEmpty (cnc)) {
keep_alive = (0 == String.Compare (cnc, "keep-alive", StringComparison.OrdinalIgnoreCase));
} else if (version == HttpVersion.Version11) {
keep_alive = true;
} else {
cnc = headers ["keep-alive"];
if (!String.IsNullOrEmpty (cnc))
keep_alive = (0 != String.Compare (cnc, "closed", StringComparison.OrdinalIgnoreCase));
_keepAliveWasSet = true;
}
return keep_alive;
return _keepAlive;
}
}
@ -313,7 +327,9 @@ namespace WebSocketSharp.Net {
/// A <see cref="IPEndPoint"/> that contains the server endpoint.
/// </value>
public IPEndPoint LocalEndPoint {
get { return context.Connection.LocalEndPoint; }
get {
return _context.Connection.LocalEndPoint;
}
}
/// <summary>
@ -323,7 +339,9 @@ namespace WebSocketSharp.Net {
/// A <see cref="Version"/> that contains the HTTP version used in the request.
/// </value>
public Version ProtocolVersion {
get { return version; }
get {
return _version;
}
}
/// <summary>
@ -333,7 +351,9 @@ namespace WebSocketSharp.Net {
/// A <see cref="NameValueCollection"/> that contains the collection of query string variables used in the request.
/// </value>
public NameValueCollection QueryString {
get { return query_string; }
get {
return _queryString;
}
}
/// <summary>
@ -343,7 +363,9 @@ namespace WebSocketSharp.Net {
/// A <see cref="string"/> that contains the raw URL requested by the client.
/// </value>
public string RawUrl {
get { return raw_url; }
get {
return _rawUrl;
}
}
/// <summary>
@ -353,18 +375,21 @@ namespace WebSocketSharp.Net {
/// A <see cref="IPEndPoint"/> that contains the client endpoint.
/// </value>
public IPEndPoint RemoteEndPoint {
get { return context.Connection.RemoteEndPoint; }
get {
return _context.Connection.RemoteEndPoint;
}
}
/// <summary>
/// Gets the identifier of a request.
/// Gets the request identifier of a incoming HTTP request.
/// </summary>
/// <value>
/// A <see cref="Guid"/> that contains the identifier of a request.
/// </value>
public Guid RequestTraceIdentifier {
// TODO: Always returns Guid.Empty
get { return Guid.Empty; }
get {
return _identifier;
}
}
/// <summary>
@ -374,27 +399,34 @@ namespace WebSocketSharp.Net {
/// A <see cref="Uri"/> that contains the URL requested by the client.
/// </value>
public Uri Url {
get { return url; }
get {
return _url;
}
}
/// <summary>
/// Gets the URL of the resource from which the requested URL was obtained.
/// </summary>
/// <value>
/// A <see cref="Uri"/> that contains the value of the Referer request-header field.
/// A <see cref="Uri"/> that contains the value of the Referer request-header
/// or <see langword="null"/> if the request did not include an Referer header.
/// </value>
public Uri UrlReferrer {
get { return referrer; }
get {
return _referer;
}
}
/// <summary>
/// Gets the information about the user agent originating the request.
/// </summary>
/// <value>
/// A <see cref="string"/> that contains the value of the User-Agent request-header field.
/// A <see cref="string"/> that contains the value of the User-Agent request-header.
/// </value>
public string UserAgent {
get { return headers ["user-agent"]; }
get {
return _headers ["User-Agent"];
}
}
/// <summary>
@ -404,52 +436,60 @@ namespace WebSocketSharp.Net {
/// A <see cref="string"/> that contains the server endpoint.
/// </value>
public string UserHostAddress {
get { return LocalEndPoint.ToString (); }
get {
return LocalEndPoint.ToString ();
}
}
/// <summary>
/// Gets the internet host name and port number (if present) of the resource being requested.
/// Gets the internet host name and port number (if present) specified by the client.
/// </summary>
/// <value>
/// A <see cref="string"/> that contains the value of the Host request-header field.
/// A <see cref="string"/> that contains the value of the Host request-header.
/// </value>
public string UserHostName {
get { return headers ["host"]; }
get {
return _headers ["Host"];
}
}
/// <summary>
/// Gets the natural languages that are preferred as a response to the request.
/// Gets the natural languages which are preferred for the response.
/// </summary>
/// <value>
/// An array of <see cref="string"/> that contains the natural language names in the Accept-Language request-header field.
/// An array of <see cref="string"/> that contains the natural language names in the Accept-Language request-header
/// or <see langword="null"/> if the request did not include an Accept-Language header.
/// </value>
public string [] UserLanguages {
get { return user_languages; }
get {
return _userLanguages;
}
}
#endregion
#region Private Methods
void CreateQueryString (string query)
private void CreateQueryString (string query)
{
if (query == null || query.Length == 0) {
query_string = new NameValueCollection (1);
_queryString = new NameValueCollection (1);
return;
}
query_string = new NameValueCollection ();
_queryString = new NameValueCollection ();
if (query [0] == '?')
query = query.Substring (1);
string [] components = query.Split ('&');
foreach (string kv in components) {
int pos = kv.IndexOf ('=');
var components = query.Split ('&');
foreach (var kv in components) {
var pos = kv.IndexOf ('=');
if (pos == -1) {
query_string.Add (null, HttpUtility.UrlDecode (kv));
_queryString.Add (null, HttpUtility.UrlDecode (kv));
} else {
string key = HttpUtility.UrlDecode (kv.Substring (0, pos));
string val = HttpUtility.UrlDecode (kv.Substring (pos + 1));
query_string.Add (key, val);
var key = HttpUtility.UrlDecode (kv.Substring (0, pos));
var val = HttpUtility.UrlDecode (kv.Substring (pos + 1));
_queryString.Add (key, val);
}
}
}
@ -460,164 +500,143 @@ namespace WebSocketSharp.Net {
internal void AddHeader (string header)
{
int colon = header.IndexOf (':');
if (colon == -1 || colon == 0) {
context.ErrorMessage = "Bad Request";
context.ErrorStatus = 400;
var colon = header.IndexOf (':');
if (colon <= 0) {
_context.ErrorMessage = "Invalid header";
return;
}
string name = header.Substring (0, colon).Trim ();
string val = header.Substring (colon + 1).Trim ();
string lower = name.ToLower (CultureInfo.InvariantCulture);
headers.SetInternal (name, val, false);
switch (lower) {
case "accept-language":
user_languages = val.Split (','); // yes, only split with a ','
break;
case "accept":
accept_types = val.Split (','); // yes, only split with a ','
break;
case "content-length":
try {
//TODO: max. content_length?
content_length = Int64.Parse (val.Trim ());
if (content_length < 0)
context.ErrorMessage = "Invalid Content-Length.";
cl_set = true;
} catch {
context.ErrorMessage = "Invalid Content-Length.";
}
var name = header.Substring (0, colon).Trim ();
var val = header.Substring (colon + 1).Trim ();
var lower = name.ToLower (CultureInfo.InvariantCulture);
_headers.SetInternal (name, val, false);
break;
case "referer":
try {
referrer = new Uri (val);
} catch {
referrer = new Uri ("http://someone.is.screwing.with.the.headers.com/");
}
break;
case "cookie":
if (cookies == null)
cookies = new CookieCollection();
string[] cookieStrings = val.Split(new char[] {',', ';'});
Cookie current = null;
int version = 0;
foreach (string cookieString in cookieStrings) {
string str = cookieString.Trim ();
if (str.Length == 0)
continue;
if (str.StartsWith ("$Version")) {
version = Int32.Parse (Unquote (str.Substring (str.IndexOf ('=') + 1)));
} else if (str.StartsWith ("$Path")) {
if (current != null)
current.Path = str.Substring (str.IndexOf ('=') + 1).Trim ();
} else if (str.StartsWith ("$Domain")) {
if (current != null)
current.Domain = str.Substring (str.IndexOf ('=') + 1).Trim ();
} else if (str.StartsWith ("$Port")) {
if (current != null)
current.Port = str.Substring (str.IndexOf ('=') + 1).Trim ();
} else {
if (current != null) {
cookies.Add (current);
}
current = new Cookie ();
int idx = str.IndexOf ('=');
if (idx > 0) {
current.Name = str.Substring (0, idx).Trim ();
current.Value = str.Substring (idx + 1).Trim ();
} else {
current.Name = str.Trim ();
current.Value = String.Empty;
}
current.Version = version;
}
}
if (current != null) {
cookies.Add (current);
}
break;
if (lower == "accept") {
_acceptTypes = 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.IsNullOrEmpty ()) {
try {
_contentEncoding = Encoding.GetEncoding (charset);
} catch {
_context.ErrorMessage = "Invalid Content-Type header";
}
}
break;
}
}
return;
}
if (lower == "referer")
_referer = val.ToUri ();
}
internal void FinishInitialization ()
{
string host = UserHostName;
if (version > HttpVersion.Version10 && (host == null || host.Length == 0)) {
context.ErrorMessage = "Invalid host name";
var host = UserHostName;
if (_version > HttpVersion.Version10 && host.IsNullOrEmpty ()) {
_context.ErrorMessage = "Invalid Host header";
return;
}
string path;
Uri raw_uri = null;
if (raw_url.MaybeUri () && Uri.TryCreate (raw_url, UriKind.Absolute, out raw_uri))
path = raw_uri.PathAndQuery;
else
path = HttpUtility.UrlDecode (raw_url);
Uri rawUri = null;
var path = _rawUrl.MaybeUri () && Uri.TryCreate (_rawUrl, UriKind.Absolute, out rawUri)
? rawUri.PathAndQuery
: HttpUtility.UrlDecode (_rawUrl);
if ((host == null || host.Length == 0))
if (host.IsNullOrEmpty ())
host = UserHostAddress;
if (raw_uri != null)
host = raw_uri.Host;
if (rawUri != null)
host = rawUri.Host;
int colon = host.IndexOf (':');
var colon = host.IndexOf (':');
if (colon >= 0)
host = host.Substring (0, colon);
string base_uri = String.Format ("{0}://{1}:{2}",
(IsSecureConnection) ? "https" : "http",
host,
LocalEndPoint.Port);
var baseUri = String.Format ("{0}://{1}:{2}",
IsSecureConnection ? "https" : "http",
host,
LocalEndPoint.Port);
if (!Uri.TryCreate (base_uri + path, UriKind.Absolute, out url)){
context.ErrorMessage = "Invalid url: " + base_uri + path;
if (!Uri.TryCreate (baseUri + path, UriKind.Absolute, out _url)) {
_context.ErrorMessage = "Invalid request url: " + baseUri + path;
return;
}
CreateQueryString (url.Query);
CreateQueryString (_url.Query);
if (version >= HttpVersion.Version11) {
string t_encoding = Headers ["Transfer-Encoding"];
is_chunked = (t_encoding != null && String.Compare (t_encoding, "chunked", StringComparison.OrdinalIgnoreCase) == 0);
var encoding = Headers ["Transfer-Encoding"];
if (_version >= HttpVersion.Version11 && !encoding.IsNullOrEmpty ()) {
_chunked = encoding.ToLower () == "chunked";
// 'identity' is not valid!
if (t_encoding != null && !is_chunked) {
context.Connection.SendError (null, 501);
if (!_chunked) {
_context.ErrorMessage = String.Empty;
_context.ErrorStatus = 501;
return;
}
}
if (!is_chunked && !cl_set) {
if (String.Compare (method, "POST", StringComparison.OrdinalIgnoreCase) == 0 ||
String.Compare (method, "PUT", StringComparison.OrdinalIgnoreCase) == 0) {
context.Connection.SendError (null, 411);
if (!_chunked && !_contentLengthWasSet) {
var method = _method.ToLower ();
if (method == "post" || method == "put") {
_context.ErrorMessage = String.Empty;
_context.ErrorStatus = 411;
return;
}
}
if (String.Compare (Headers ["Expect"], "100-continue", StringComparison.OrdinalIgnoreCase) == 0) {
ResponseStream output = context.Connection.GetResponseStream ();
var expect = Headers ["Expect"];
if (!expect.IsNullOrEmpty () && expect.ToLower () == "100-continue") {
var output = _context.Connection.GetResponseStream ();
output.InternalWrite (_100continue, 0, _100continue.Length);
}
}
// returns true is the stream could be reused.
// Returns true is the stream could be reused.
internal bool FlushInput ()
{
if (!HasEntityBody)
return true;
int length = 2048;
if (content_length > 0)
length = (int) Math.Min (content_length, (long) length);
var length = 2048;
if (_contentLength > 0)
length = (int) Math.Min (_contentLength, (long) length);
byte [] bytes = new byte [length];
var buffer = new byte [length];
while (true) {
// TODO: test if MS has a timeout when doing this
// TODO: Test if MS has a timeout when doing this.
try {
IAsyncResult ares = InputStream.BeginRead (bytes, 0, length, null, null);
var ares = InputStream.BeginRead (buffer, 0, length, null, null);
if (!ares.IsCompleted && !ares.AsyncWaitHandle.WaitOne (100))
return false;
@ -629,54 +648,36 @@ namespace WebSocketSharp.Net {
}
}
internal void SetRequestLine (string req)
internal void SetRequestLine (string requestLine)
{
string [] parts = req.Split (separators, 3);
var parts = requestLine.Split (new char [] { ' ' }, 3);
if (parts.Length != 3) {
context.ErrorMessage = "Invalid request line (parts).";
_context.ErrorMessage = "Invalid request line (parts)";
return;
}
method = parts [0];
foreach (char c in method){
int ic = (int) c;
if ((ic >= 'A' && ic <= 'Z') ||
(ic > 32 && c < 127 && c != '(' && c != ')' && c != '<' &&
c != '<' && c != '>' && c != '@' && c != ',' && c != ';' &&
c != ':' && c != '\\' && c != '"' && c != '/' && c != '[' &&
c != ']' && c != '?' && c != '=' && c != '{' && c != '}'))
continue;
context.ErrorMessage = "(Invalid verb)";
_method = parts [0];
if (!_method.IsToken ()) {
_context.ErrorMessage = "Invalid request line (method)";
return;
}
raw_url = parts [1];
_rawUrl = parts [1];
if (parts [2].Length != 8 || !parts [2].StartsWith ("HTTP/")) {
context.ErrorMessage = "Invalid request line (version).";
_context.ErrorMessage = "Invalid request line (version)";
return;
}
try {
version = new Version (parts [2].Substring (5));
if (version.Major < 1)
_version = new Version (parts [2].Substring (5));
if (_version.Major < 1)
throw new Exception ();
} catch {
context.ErrorMessage = "Invalid request line (version).";
return;
_context.ErrorMessage = "Invalid request line (version)";
}
}
internal static string Unquote (String str)
{
int start = str.IndexOf ('\"');
int end = str.LastIndexOf ('\"');
if (start >= 0 && end >=0)
str = str.Substring (start + 1, end - 1);
return str.Trim ();
}
#endregion
#region Public Methods