public ChunkedInputStream(HttpListenerContext context, Stream stream, byte[] buffer, int offset, int length) : base(stream, buffer, offset, length)
{
this.context = context;
WebHeaderCollection headers = (WebHeaderCollection)context.Request.Headers;
this.decoder = new ChunkStream(headers);
}
public ChunkedInputStream(HttpListenerContext context, Stream stream,
byte[] buffer, int offset, int length)
: base(stream, buffer, offset, length)
{
_context = context;
Decoder = new ChunkStream(context.Request.Headers);
}
public ChunkedInputStream (HttpListenerContext context, Stream stream,
byte [] buffer, int offset, int length)
: base (stream, buffer, offset, length)
{
this.context = context;
WebHeaderCollection coll = (WebHeaderCollection) context.Request.Headers;
decoder = new ChunkStream (coll);
}
private ChunkStream.State ReadTrailer(byte[] buffer, ref int offset, int size)
{
if (this.trailerState == 2 && (ushort)buffer[offset] == 13 && this.saved.Length == 0)
{
offset++;
if (offset < size && (ushort)buffer[offset] == 10)
{
offset++;
return(ChunkStream.State.None);
}
offset--;
}
int num = this.trailerState;
string text = "\r\n\r";
while (offset < size && num < 4)
{
char c = (char)buffer[offset++];
if ((num == 0 || num == 2) && c == '\r')
{
num++;
}
else if ((num == 1 || num == 3) && c == '\n')
{
num++;
}
else if (num > 0)
{
this.saved.Append(text.Substring(0, (this.saved.Length != 0) ? num : (num - 2)));
num = 0;
if (this.saved.Length > 4196)
{
ChunkStream.ThrowProtocolViolation("Error reading trailer (too long).");
}
}
}
if (num < 4)
{
this.trailerState = num;
if (offset < size)
{
ChunkStream.ThrowProtocolViolation("Error reading trailer.");
}
return(ChunkStream.State.Trailer);
}
StringReader stringReader = new StringReader(this.saved.ToString());
string text2;
while ((text2 = stringReader.ReadLine()) != null && text2 != string.Empty)
{
this.headers.Add(text2);
}
return(ChunkStream.State.None);
}
private ChunkStream.State ReadCRLF(byte[] buffer, ref int offset, int size)
{
if (!this.sawCR)
{
if ((ushort)buffer[offset++] != 13)
{
ChunkStream.ThrowProtocolViolation("Expecting \\r");
}
this.sawCR = true;
if (offset == size)
{
return(ChunkStream.State.BodyFinished);
}
}
if (this.sawCR && (ushort)buffer[offset++] != 10)
{
ChunkStream.ThrowProtocolViolation("Expecting \\n");
}
return(ChunkStream.State.None);
}
private void Connect(HttpWebRequest request)
{
lock (socketLock)
{
if (this.socket != null && this.socket.Connected && status == WebExceptionStatus.Success && CanReuse() && CompleteChunkedRead())
{
reused = true;
}
else
{
reused = false;
if (this.socket != null)
{
this.socket.Close();
this.socket = null;
}
chunkStream = null;
IPHostEntry hostEntry = sPoint.HostEntry;
if (hostEntry == null)
{
status = ((!sPoint.UsesProxy) ? WebExceptionStatus.NameResolutionFailure : WebExceptionStatus.ProxyNameResolutionFailure);
}
else
{
WebConnectionData data = Data;
IPAddress[] addressList = hostEntry.AddressList;
foreach (IPAddress iPAddress in addressList)
{
this.socket = new Socket(iPAddress.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
IPEndPoint iPEndPoint = new IPEndPoint(iPAddress, sPoint.Address.Port);
this.socket.SetSocketOption(SocketOptionLevel.Tcp, SocketOptionName.Debug, (!sPoint.UseNagleAlgorithm) ? 1 : 0);
this.socket.NoDelay = !sPoint.UseNagleAlgorithm;
if (!sPoint.CallEndPointDelegate(this.socket, iPEndPoint))
{
this.socket.Close();
this.socket = null;
status = WebExceptionStatus.ConnectFailure;
}
else
{
try
{
if (!request.Aborted)
{
CheckUnityWebSecurity(request);
this.socket.Connect(iPEndPoint, requireSocketPolicy: false);
status = WebExceptionStatus.Success;
}
return;
IL_01a1 :;
}
catch (ThreadAbortException)
{
Socket socket = this.socket;
this.socket = null;
socket?.Close();
return;
IL_01c9 :;
}
catch (ObjectDisposedException)
{
return;
IL_01d5 :;
}
catch (Exception ex3)
{
Socket socket2 = this.socket;
this.socket = null;
socket2?.Close();
if (!request.Aborted)
{
status = WebExceptionStatus.ConnectFailure;
}
connect_exception = ex3;
}
}
}
}
}
}
}
void Connect (HttpWebRequest request)
{
lock (socketLock) {
if (socket != null && socket.Connected && status == WebExceptionStatus.Success) {
// Take the chunked stream to the expected state (State.None)
if (CanReuse () && CompleteChunkedRead ()) {
reused = true;
return;
}
}
reused = false;
if (socket != null) {
socket.Close();
socket = null;
}
chunkStream = null;
IPHostEntry hostEntry = sPoint.HostEntry;
if (hostEntry == null) {
#if MONOTOUCH
if (start_wwan != null) {
start_wwan.Invoke (null, new object [1] { sPoint.Address });
hostEntry = sPoint.HostEntry;
}
if (hostEntry == null) {
#endif
status = sPoint.UsesProxy ? WebExceptionStatus.ProxyNameResolutionFailure :
WebExceptionStatus.NameResolutionFailure;
return;
#if MONOTOUCH
}
#endif
}
//WebConnectionData data = Data;
foreach (IPAddress address in hostEntry.AddressList) {
try {
socket = new Socket (address.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
} catch (Exception se) {
// The Socket ctor can throw if we run out of FD's
if (!request.Aborted)
status = WebExceptionStatus.ConnectFailure;
connect_exception = se;
return;
}
IPEndPoint remote = new IPEndPoint (address, sPoint.Address.Port);
socket.NoDelay = !sPoint.UseNagleAlgorithm;
try {
sPoint.KeepAliveSetup (socket);
} catch {
// Ignore. Not supported in all platforms.
}
if (!sPoint.CallEndPointDelegate (socket, remote)) {
socket.Close ();
socket = null;
status = WebExceptionStatus.ConnectFailure;
} else {
try {
if (request.Aborted)
return;
socket.Connect (remote);
status = WebExceptionStatus.Success;
break;
} catch (ThreadAbortException) {
// program exiting...
Socket s = socket;
socket = null;
if (s != null)
s.Close ();
return;
} catch (ObjectDisposedException) {
// socket closed from another thread
return;
} catch (Exception exc) {
Socket s = socket;
socket = null;
if (s != null)
s.Close ();
if (!request.Aborted)
status = WebExceptionStatus.ConnectFailure;
connect_exception = exc;
}
}
}
}
}
void Connect(HttpWebRequest request)
{
lock (socketLock) {
if (socket != null && socket.Connected && status == WebExceptionStatus.Success)
{
// Take the chunked stream to the expected state (State.None)
if (CanReuse() && CompleteChunkedRead())
{
reused = true;
return;
}
}
reused = false;
if (socket != null)
{
socket.Close();
socket = null;
}
chunkStream = null;
IPHostEntry hostEntry = sPoint.HostEntry;
if (hostEntry == null)
{
#if MONOTOUCH
if (start_wwan != null)
{
start_wwan.Invoke(null, new object [1] {
sPoint.Address
});
hostEntry = sPoint.HostEntry;
}
if (hostEntry == null)
{
#endif
status = sPoint.UsesProxy ? WebExceptionStatus.ProxyNameResolutionFailure :
WebExceptionStatus.NameResolutionFailure;
return;
#if MONOTOUCH
}
#endif
}
WebConnectionData data = Data;
foreach (IPAddress address in hostEntry.AddressList)
{
socket = new Socket(address.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
IPEndPoint remote = new IPEndPoint(address, sPoint.Address.Port);
#if NET_1_1
socket.SetSocketOption(SocketOptionLevel.Tcp, SocketOptionName.NoDelay, sPoint.UseNagleAlgorithm ? 0 : 1);
#endif
#if NET_2_0
socket.NoDelay = !sPoint.UseNagleAlgorithm;
if (!sPoint.CallEndPointDelegate(socket, remote))
{
socket.Close();
socket = null;
status = WebExceptionStatus.ConnectFailure;
}
else
{
#endif
try {
if (request.Aborted)
{
return;
}
socket.Connect(remote);
status = WebExceptionStatus.Success;
break;
} catch (ThreadAbortException) {
// program exiting...
Socket s = socket;
socket = null;
if (s != null)
{
s.Close();
}
return;
} catch (ObjectDisposedException exc) {
// socket closed from another thread
return;
} catch (Exception exc) {
Socket s = socket;
socket = null;
if (s != null)
{
s.Close();
}
if (!request.Aborted)
{
status = WebExceptionStatus.ConnectFailure;
}
connect_exception = exc;
}
#if NET_2_0
}
#endif
}
}
}
void Connect()
{
lock (socketLock) {
if (socket != null && socket.Connected && status == WebExceptionStatus.Success)
{
// Take the chunked stream to the expected state (State.None)
if (CanReuse() && CompleteChunkedRead())
{
reused = true;
return;
}
}
reused = false;
if (socket != null)
{
socket.Close();
socket = null;
}
chunkStream = null;
IPHostEntry hostEntry = sPoint.HostEntry;
if (hostEntry == null)
{
status = sPoint.UsesProxy ? WebExceptionStatus.ProxyNameResolutionFailure :
WebExceptionStatus.NameResolutionFailure;
return;
}
foreach (IPAddress address in hostEntry.AddressList)
{
socket = new Socket(address.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
IPEndPoint remote = new IPEndPoint(address, sPoint.Address.Port);
#if NET_2_0
if (!sPoint.CallEndPointDelegate(socket, remote))
{
socket.Close();
socket = null;
status = WebExceptionStatus.ConnectFailure;
}
else
{
#endif
try {
socket.Connect(remote);
status = WebExceptionStatus.Success;
break;
} catch (SocketException) {
// This might be null if the request is aborted
if (socket != null)
{
socket.Close();
socket = null;
status = WebExceptionStatus.ConnectFailure;
}
}
#if NET_2_0
}
#endif
}
}
}
void Connect(HttpWebRequest request)
{
lock (socketLock) {
if (socket != null && socket.Connected && status == WebExceptionStatus.Success)
{
// Take the chunked stream to the expected state (State.None)
if (CanReuse() && CompleteChunkedRead())
{
reused = true;
return;
}
}
reused = false;
if (socket != null)
{
socket.Close();
socket = null;
}
chunkStream = null;
IPHostEntry hostEntry = sPoint.HostEntry;
if (hostEntry == null)
{
#if MONOTOUCH
xamarin_start_wwan(sPoint.Address.ToString());
hostEntry = sPoint.HostEntry;
if (hostEntry == null)
{
#endif
status = sPoint.UsesProxy ? WebExceptionStatus.ProxyNameResolutionFailure :
WebExceptionStatus.NameResolutionFailure;
return;
#if MONOTOUCH
}
#endif
}
//WebConnectionData data = Data;
foreach (IPAddress address in hostEntry.AddressList)
{
try {
socket = new Socket(address.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
}
catch (Exception se) {
// The Socket ctor can throw if we run out of FD's
if (!request.Aborted)
{
status = WebExceptionStatus.ConnectFailure;
}
connect_exception = se;
return;
}
IPEndPoint remote = new IPEndPoint(address, sPoint.Address.Port);
socket.NoDelay = !sPoint.UseNagleAlgorithm;
try {
sPoint.KeepAliveSetup(socket);
} catch {
// Ignore. Not supported in all platforms.
}
if (!sPoint.CallEndPointDelegate(socket, remote))
{
socket.Close();
socket = null;
status = WebExceptionStatus.ConnectFailure;
}
else
{
try {
if (request.Aborted)
{
return;
}
socket.Connect(remote);
status = WebExceptionStatus.Success;
break;
} catch (ThreadAbortException) {
// program exiting...
Socket s = socket;
socket = null;
if (s != null)
{
s.Close();
}
return;
} catch (ObjectDisposedException) {
// socket closed from another thread
return;
} catch (Exception exc) {
Socket s = socket;
socket = null;
if (s != null)
{
s.Close();
}
if (!request.Aborted)
{
status = WebExceptionStatus.ConnectFailure;
}
connect_exception = exc;
}
}
}
}
}
async Task Initialize(BufferOffsetSize buffer, CancellationToken cancellationToken)
{
WebConnection.Debug($"{ME} INIT: status={(int)StatusCode} bos={buffer.Offset}/{buffer.Size}");
string contentType = Headers["Transfer-Encoding"];
bool chunkedRead = (contentType != null && contentType.IndexOf("chunked", StringComparison.OrdinalIgnoreCase) != -1);
string clength = Headers["Content-Length"];
if (!chunkedRead && !string.IsNullOrEmpty(clength))
{
if (!long.TryParse(clength, out contentLength))
{
contentLength = Int64.MaxValue;
}
}
else
{
contentLength = Int64.MaxValue;
}
if (Version == HttpVersion.Version11 && RequestStream.KeepAlive)
{
KeepAlive = true;
var cncHeader = Headers[ServicePoint.UsesProxy ? "Proxy-Connection" : "Connection"];
if (cncHeader != null)
{
cncHeader = cncHeader.ToLower();
KeepAlive = cncHeader.IndexOf("keep-alive", StringComparison.Ordinal) != -1;
if (cncHeader.IndexOf("close", StringComparison.Ordinal) != -1)
{
KeepAlive = false;
}
}
}
// Negative numbers?
if (!Int32.TryParse(clength, out stream_length))
{
stream_length = -1;
}
string me = "WebResponseStream.Initialize()";
string tencoding = null;
if (ExpectContent)
{
tencoding = Headers["Transfer-Encoding"];
}
ChunkedRead = (tencoding != null && tencoding.IndexOf("chunked", StringComparison.OrdinalIgnoreCase) != -1);
if (!ChunkedRead)
{
readBuffer = buffer;
try {
if (contentLength > 0 && readBuffer.Size >= contentLength)
{
if (!IsNtlmAuth())
{
await ReadAllAsync(false, cancellationToken).ConfigureAwait(false);
}
}
} catch (Exception e) {
throw GetReadException(WebExceptionStatus.ReceiveFailure, e, me);
}
}
else if (ChunkStream == null)
{
try {
ChunkStream = new MonoChunkStream(buffer.Buffer, buffer.Offset, buffer.Offset + buffer.Size, Headers);
} catch (Exception e) {
throw GetReadException(WebExceptionStatus.ServerProtocolViolation, e, me);
}
}
else
{
ChunkStream.ResetBuffer();
try {
ChunkStream.Write(buffer.Buffer, buffer.Offset, buffer.Size);
} catch (Exception e) {
throw GetReadException(WebExceptionStatus.ServerProtocolViolation, e, me);
}
}
WebConnection.Debug($"{ME} INIT #1: - {ExpectContent} {closed} {nextReadCalled}");
if (!ExpectContent)
{
if (!closed && !nextReadCalled)
{
if (contentLength == Int64.MaxValue)
{
contentLength = 0;
}
nextReadCalled = true;
}
Operation.Finish(true);
}
}
private void Connect(HttpWebRequest request)
{
object obj = this.socketLock;
lock (obj)
{
if (this.socket != null && this.socket.Connected && this.status == WebExceptionStatus.Success && this.CanReuse() && this.CompleteChunkedRead())
{
this.reused = true;
}
else
{
this.reused = false;
if (this.socket != null)
{
this.socket.Close();
this.socket = null;
}
this.chunkStream = null;
IPHostEntry hostEntry = this.sPoint.HostEntry;
if (hostEntry == null)
{
this.status = ((!this.sPoint.UsesProxy) ? WebExceptionStatus.NameResolutionFailure : WebExceptionStatus.ProxyNameResolutionFailure);
}
else
{
WebConnectionData data = this.Data;
foreach (IPAddress ipaddress in hostEntry.AddressList)
{
this.socket = new System.Net.Sockets.Socket(ipaddress.AddressFamily, System.Net.Sockets.SocketType.Stream, System.Net.Sockets.ProtocolType.Tcp);
IPEndPoint ipendPoint = new IPEndPoint(ipaddress, this.sPoint.Address.Port);
this.socket.SetSocketOption(System.Net.Sockets.SocketOptionLevel.Tcp, System.Net.Sockets.SocketOptionName.Debug, (!this.sPoint.UseNagleAlgorithm) ? 1 : 0);
this.socket.NoDelay = !this.sPoint.UseNagleAlgorithm;
if (!this.sPoint.CallEndPointDelegate(this.socket, ipendPoint))
{
this.socket.Close();
this.socket = null;
this.status = WebExceptionStatus.ConnectFailure;
}
else
{
try
{
if (request.Aborted)
{
break;
}
this.CheckUnityWebSecurity(request);
this.socket.Connect(ipendPoint, false);
this.status = WebExceptionStatus.Success;
break;
}
catch (ThreadAbortException)
{
System.Net.Sockets.Socket socket = this.socket;
this.socket = null;
if (socket != null)
{
socket.Close();
}
break;
}
catch (ObjectDisposedException ex)
{
break;
}
catch (Exception ex2)
{
System.Net.Sockets.Socket socket2 = this.socket;
this.socket = null;
if (socket2 != null)
{
socket2.Close();
}
if (!request.Aborted)
{
this.status = WebExceptionStatus.ConnectFailure;
}
this.connect_exception = ex2;
}
}
}
}
}
}
}
private ChunkStream.State GetChunkSize(byte[] buffer, ref int offset, int size)
{
char c = '\0';
while (offset < size)
{
c = (char)buffer[offset++];
if (c == '\r')
{
if (this.sawCR)
{
ChunkStream.ThrowProtocolViolation("2 CR found");
}
this.sawCR = true;
}
else
{
if (this.sawCR && c == '\n')
{
break;
}
if (c == ' ')
{
this.gotit = true;
}
if (!this.gotit)
{
this.saved.Append(c);
}
if (this.saved.Length > 20)
{
ChunkStream.ThrowProtocolViolation("chunk size too long.");
}
}
}
if (!this.sawCR || c != '\n')
{
if (offset < size)
{
ChunkStream.ThrowProtocolViolation("Missing \\n");
}
try
{
if (this.saved.Length > 0)
{
this.chunkSize = int.Parse(ChunkStream.RemoveChunkExtension(this.saved.ToString()), NumberStyles.HexNumber);
}
}
catch (Exception)
{
ChunkStream.ThrowProtocolViolation("Cannot parse chunk size.");
}
return(ChunkStream.State.None);
}
this.chunkRead = 0;
try
{
this.chunkSize = int.Parse(ChunkStream.RemoveChunkExtension(this.saved.ToString()), NumberStyles.HexNumber);
}
catch (Exception)
{
ChunkStream.ThrowProtocolViolation("Cannot parse chunk size.");
}
if (this.chunkSize == 0)
{
this.trailerState = 2;
return(ChunkStream.State.Trailer);
}
return(ChunkStream.State.Body);
}
void ReadDone(IAsyncResult result)
{
WebConnectionData data = Data;
Stream ns = nstream;
if (ns == null)
{
Close(true);
return;
}
int nread = -1;
try {
nread = ns.EndRead(result);
} catch (ObjectDisposedException) {
return;
} catch (Exception e) {
if (e.InnerException is ObjectDisposedException)
{
return;
}
HandleError(WebExceptionStatus.ReceiveFailure, e, "ReadDone1");
return;
}
if (nread == 0)
{
HandleError(WebExceptionStatus.ReceiveFailure, null, "ReadDone2");
return;
}
if (nread < 0)
{
HandleError(WebExceptionStatus.ServerProtocolViolation, null, "ReadDone3");
return;
}
int pos = -1;
nread += position;
if (data.ReadState == ReadState.None)
{
Exception exc = null;
try {
pos = GetResponse(data, sPoint, buffer, nread);
} catch (Exception e) {
exc = e;
}
if (exc != null || pos == -1)
{
HandleError(WebExceptionStatus.ServerProtocolViolation, exc, "ReadDone4");
return;
}
}
if (data.ReadState == ReadState.Aborted)
{
HandleError(WebExceptionStatus.RequestCanceled, null, "ReadDone");
return;
}
if (data.ReadState != ReadState.Content)
{
int est = nread * 2;
int max = (est < buffer.Length) ? buffer.Length : est;
byte [] newBuffer = new byte [max];
Buffer.BlockCopy(buffer, 0, newBuffer, 0, nread);
buffer = newBuffer;
position = nread;
data.ReadState = ReadState.None;
InitRead();
return;
}
position = 0;
WebConnectionStream stream = new WebConnectionStream(this, data);
bool expect_content = ExpectContent(data.StatusCode, data.request.Method);
string tencoding = null;
if (expect_content)
{
tencoding = data.Headers ["Transfer-Encoding"];
}
chunkedRead = (tencoding != null && tencoding.IndexOf("chunked", StringComparison.OrdinalIgnoreCase) != -1);
if (!chunkedRead)
{
stream.ReadBuffer = buffer;
stream.ReadBufferOffset = pos;
stream.ReadBufferSize = nread;
try {
stream.CheckResponseInBuffer();
} catch (Exception e) {
HandleError(WebExceptionStatus.ReceiveFailure, e, "ReadDone7");
}
}
else if (chunkStream == null)
{
try {
chunkStream = new ChunkStream(buffer, pos, nread, data.Headers);
} catch (Exception e) {
HandleError(WebExceptionStatus.ServerProtocolViolation, e, "ReadDone5");
return;
}
}
else
{
chunkStream.ResetBuffer();
try {
chunkStream.Write(buffer, pos, nread);
} catch (Exception e) {
HandleError(WebExceptionStatus.ServerProtocolViolation, e, "ReadDone6");
return;
}
}
data.stream = stream;
if (!expect_content)
{
stream.ForceCompletion();
}
data.request.SetResponseData(data);
}
