public void NormalData()
{
var handshaker = new PerMessageDeflateClientExtensionHandshaker();
WebSocketExtensionData data = handshaker.NewRequestData();
Assert.Equal(PerMessageDeflateExtension, data.Name);
Assert.Equal(ZlibCodecFactory.IsSupportingWindowSizeAndMemLevel ? 1 : 0, data.Parameters.Count);
}
public void CustomHandshake()
{
var handshaker = new PerMessageDeflateServerExtensionHandshaker(6, true, 10, true, true);
var parameters = new Dictionary <string, string>
{
{ ClientMaxWindow, null },
{ ServerMaxWindow, "12" },
{ ClientNoContext, null },
{ ServerNoContext, null }
};
IWebSocketServerExtension extension = handshaker.HandshakeExtension(
new WebSocketExtensionData(PerMessageDeflateExtension, parameters));
Assert.NotNull(extension);
Assert.Equal(WebSocketRsv.Rsv1, extension.Rsv);
Assert.IsType <PerMessageDeflateDecoder>(extension.NewExtensionDecoder());
Assert.IsType <PerMessageDeflateEncoder>(extension.NewExtensionEncoder());
WebSocketExtensionData data = extension.NewReponseData();
Assert.Equal(PerMessageDeflateExtension, data.Name);
Assert.Contains(ClientMaxWindow, data.Parameters.Keys);
Assert.Equal("10", data.Parameters[ClientMaxWindow]);
Assert.Contains(ServerMaxWindow, data.Parameters.Keys);
Assert.Equal("12", data.Parameters[ServerMaxWindow]);
parameters = new Dictionary <string, string>
{
{ ServerMaxWindow, "12" },
{ ServerNoContext, null }
};
extension = handshaker.HandshakeExtension(
new WebSocketExtensionData(PerMessageDeflateExtension, parameters));
Assert.NotNull(extension);
Assert.Equal(WebSocketRsv.Rsv1, extension.Rsv);
Assert.IsType <PerMessageDeflateDecoder>(extension.NewExtensionDecoder());
Assert.IsType <PerMessageDeflateEncoder>(extension.NewExtensionEncoder());
data = extension.NewReponseData();
Assert.Equal(PerMessageDeflateExtension, data.Name);
Assert.Equal(2, data.Parameters.Count);
Assert.Contains(ServerMaxWindow, data.Parameters.Keys);
Assert.Equal("12", data.Parameters[ServerMaxWindow]);
Assert.Contains(ServerNoContext, data.Parameters.Keys);
parameters = new Dictionary <string, string>();
extension = handshaker.HandshakeExtension(
new WebSocketExtensionData(PerMessageDeflateExtension, parameters));
Assert.NotNull(extension);
data = extension.NewReponseData();
Assert.Equal(PerMessageDeflateExtension, data.Name);
Assert.Empty(data.Parameters);
}
public void DeflateFrameData()
{
var handshaker = new DeflateFrameClientExtensionHandshaker(false);
WebSocketExtensionData data = handshaker.NewRequestData();
Assert.Equal(DeflateFrameExtension, data.Name);
Assert.Empty(data.Parameters);
}
public void CustomData()
{
var handshaker = new PerMessageDeflateClientExtensionHandshaker(6, true, 10, true, true);
WebSocketExtensionData data = handshaker.NewRequestData();
Assert.Equal(PerMessageDeflateExtension, data.Name);
Assert.Contains(ClientMaxWindow, data.Parameters.Keys);
Assert.Contains(ServerMaxWindow, data.Parameters.Keys);
Assert.Equal("10", data.Parameters[ServerMaxWindow]);
}
public IWebSocketServerExtension HandshakeExtension(WebSocketExtensionData extensionData)
{
if (!XWebkitDeflateFrameExtension.Equals(extensionData.Name) &&
!DeflateFrameExtension.Equals(extensionData.Name))
{
return(null);
}
if (extensionData.Parameters.Count == 0)
{
return(new DeflateFrameServerExtension(this.compressionLevel, extensionData.Name));
}
else
{
return(null);
}
}
public void NormalHandshake()
{
var handshaker = new PerMessageDeflateServerExtensionHandshaker();
IWebSocketServerExtension extension = handshaker.HandshakeExtension(
new WebSocketExtensionData(PerMessageDeflateExtension, new Dictionary <string, string>()));
Assert.NotNull(extension);
Assert.Equal(WebSocketRsv.Rsv1, extension.Rsv);
Assert.IsType <PerMessageDeflateDecoder>(extension.NewExtensionDecoder());
Assert.IsType <PerMessageDeflateEncoder>(extension.NewExtensionEncoder());
WebSocketExtensionData data = extension.NewReponseData();
Assert.Equal(PerMessageDeflateExtension, data.Name);
Assert.Empty(data.Parameters);
var parameters = new Dictionary <string, string>
{
{ ClientMaxWindow, null },
{ ClientNoContext, null }
};
extension = handshaker.HandshakeExtension(
new WebSocketExtensionData(PerMessageDeflateExtension, parameters));
Assert.NotNull(extension);
Assert.Equal(WebSocketRsv.Rsv1, extension.Rsv);
Assert.IsType <PerMessageDeflateDecoder>(extension.NewExtensionDecoder());
Assert.IsType <PerMessageDeflateEncoder>(extension.NewExtensionEncoder());
data = extension.NewReponseData();
Assert.Equal(PerMessageDeflateExtension, data.Name);
Assert.Empty(data.Parameters);
parameters = new Dictionary <string, string>
{
{ ServerMaxWindow, "12" },
{ ServerNoContext, null }
};
extension = handshaker.HandshakeExtension(
new WebSocketExtensionData(PerMessageDeflateExtension, parameters));
Assert.Null(extension);
}
public IWebSocketClientExtension HandshakeExtension(WebSocketExtensionData extensionData)
{
if ((uint)extensionData.Parameters.Count > 0u)
{
return(null);
}
var extensionDataName = extensionData.Name;
switch (extensionDataName)
{
case XWebkitDeflateFrameExtension:
case DeflateFrameExtension:
return(new DeflateFrameClientExtension(_compressionLevel, _extensionFilterProvider));
default:
if (string.Equals(XWebkitDeflateFrameExtension, extensionDataName, StringComparison.OrdinalIgnoreCase) ||
string.Equals(DeflateFrameExtension, extensionDataName, StringComparison.OrdinalIgnoreCase))
{
return(new DeflateFrameClientExtension(_compressionLevel, _extensionFilterProvider));
}
return(null);
}
}
public IWebSocketClientExtension HandshakeExtension(WebSocketExtensionData extensionData)
{
if (!PerMessageDeflateExtension.Equals(extensionData.Name))
{
return(null);
}
bool succeed = true;
int clientWindowSize = MaxWindowSize;
int serverWindowSize = MaxWindowSize;
bool serverNoContext = false;
bool clientNoContext = false;
foreach (KeyValuePair <string, string> parameter in extensionData.Parameters)
{
if (ClientMaxWindow.Equals(parameter.Key, StringComparison.OrdinalIgnoreCase))
{
// allowed client_window_size_bits
if (this.allowClientWindowSize)
{
clientWindowSize = int.Parse(parameter.Value);
}
else
{
succeed = false;
}
}
else if (ServerMaxWindow.Equals(parameter.Key, StringComparison.OrdinalIgnoreCase))
{
// acknowledged server_window_size_bits
serverWindowSize = int.Parse(parameter.Value);
if (clientWindowSize > MaxWindowSize || clientWindowSize < MinWindowSize)
{
succeed = false;
}
}
else if (ClientNoContext.Equals(parameter.Key, StringComparison.OrdinalIgnoreCase))
{
// allowed client_no_context_takeover
if (this.allowClientNoContext)
{
clientNoContext = true;
}
else
{
succeed = false;
}
}
else if (ServerNoContext.Equals(parameter.Key, StringComparison.OrdinalIgnoreCase))
{
// acknowledged server_no_context_takeover
if (this.requestedServerNoContext)
{
serverNoContext = true;
}
else
{
succeed = false;
}
}
else
{
// unknown parameter
succeed = false;
}
if (!succeed)
{
break;
}
}
if ((this.requestedServerNoContext && !serverNoContext) ||
this.requestedServerWindowSize != serverWindowSize)
{
succeed = false;
}
if (succeed)
{
return(new WebSocketPermessageDeflateExtension(serverNoContext, serverWindowSize,
clientNoContext, this.compressionLevel));
}
else
{
return(null);
}
}
public IWebSocketClientExtension HandshakeExtension(WebSocketExtensionData extensionData)
{
if (!IsPerMessageDeflateExtension(extensionData.Name))
{
return(null);
}
bool succeed = true;
int clientWindowSize = MaxWindowSize;
int serverWindowSize = MaxWindowSize;
bool serverNoContext = false;
bool clientNoContext = false;
foreach (KeyValuePair <string, string> parameter in extensionData.Parameters)
{
var parameterKey = parameter.Key;
switch (parameterKey)
{
case ClientMaxWindow:
// allowed client_window_size_bits
if (_allowClientWindowSize)
{
clientWindowSize = int.Parse(parameter.Value);
}
else
{
succeed = false;
}
break;
case ServerMaxWindow:
// acknowledged server_window_size_bits
serverWindowSize = int.Parse(parameter.Value);
uint uclientWindowSize0 = (uint)clientWindowSize;
if (uclientWindowSize0 > (uint)MaxWindowSize || uclientWindowSize0 < (uint)MinWindowSize)
{
succeed = false;
}
break;
case ClientNoContext:
// allowed client_no_context_takeover
if (_allowClientNoContext)
{
clientNoContext = true;
}
else
{
succeed = false;
}
break;
case ServerNoContext:
// acknowledged server_no_context_takeover
if (_requestedServerNoContext)
{
serverNoContext = true;
}
else
{
succeed = false;
}
break;
default:
if (string.Equals(ClientMaxWindow, parameterKey, StringComparison.OrdinalIgnoreCase))
{
// allowed client_window_size_bits
if (_allowClientWindowSize)
{
clientWindowSize = int.Parse(parameter.Value);
}
else
{
succeed = false;
}
}
else if (string.Equals(ServerMaxWindow, parameterKey, StringComparison.OrdinalIgnoreCase))
{
// acknowledged server_window_size_bits
serverWindowSize = int.Parse(parameter.Value);
uint uclientWindowSize = (uint)clientWindowSize;
if (uclientWindowSize > (uint)MaxWindowSize || uclientWindowSize < (uint)MinWindowSize)
{
succeed = false;
}
}
else if (string.Equals(ClientNoContext, parameterKey, StringComparison.OrdinalIgnoreCase))
{
// allowed client_no_context_takeover
if (_allowClientNoContext)
{
clientNoContext = true;
}
else
{
succeed = false;
}
}
else if (string.Equals(ServerNoContext, parameterKey, StringComparison.OrdinalIgnoreCase))
{
// acknowledged server_no_context_takeover
if (_requestedServerNoContext)
{
serverNoContext = true;
}
else
{
succeed = false;
}
}
else
{
// unknown parameter
succeed = false;
}
break;
}
if (!succeed)
{
break;
}
}
if ((_requestedServerNoContext && !serverNoContext) ||
_requestedServerWindowSize != serverWindowSize)
{
succeed = false;
}
if (succeed)
{
return(new WebSocketPermessageDeflateExtension(serverNoContext, serverWindowSize,
clientNoContext, clientWindowSize, _compressionLevel, _extensionFilterProvider));
}
else
{
return(null);
}
}
public IWebSocketServerExtension HandshakeExtension(WebSocketExtensionData extensionData)
{
if (!PerMessageDeflateExtension.Equals(extensionData.Name))
{
return(null);
}
bool deflateEnabled = true;
int clientWindowSize = MaxWindowSize;
int serverWindowSize = MaxWindowSize;
bool serverNoContext = false;
bool clientNoContext = false;
foreach (KeyValuePair <string, string> parameter in extensionData.Parameters)
{
if (ClientMaxWindow.Equals(parameter.Key, StringComparison.OrdinalIgnoreCase))
{
// use preferred clientWindowSize because client is compatible with customization
clientWindowSize = this.preferredClientWindowSize;
}
else if (ServerMaxWindow.Equals(parameter.Key, StringComparison.OrdinalIgnoreCase))
{
// use provided windowSize if it is allowed
if (this.allowServerWindowSize)
{
serverWindowSize = int.Parse(parameter.Value);
if (serverWindowSize > MaxWindowSize || serverWindowSize < MinWindowSize)
{
deflateEnabled = false;
}
}
else
{
deflateEnabled = false;
}
}
else if (ClientNoContext.Equals(parameter.Key, StringComparison.OrdinalIgnoreCase))
{
// use preferred clientNoContext because client is compatible with customization
clientNoContext = this.preferredClientNoContext;
}
else if (ServerNoContext.Equals(parameter.Key, StringComparison.OrdinalIgnoreCase))
{
// use server no context if allowed
if (this.allowServerNoContext)
{
serverNoContext = true;
}
else
{
deflateEnabled = false;
}
}
else
{
// unknown parameter
deflateEnabled = false;
}
if (!deflateEnabled)
{
break;
}
}
if (deflateEnabled)
{
return(new WebSocketPermessageDeflateExtension(this.compressionLevel, serverNoContext,
serverWindowSize, clientNoContext, clientWindowSize));
}
else
{
return(null);
}
}
public IWebSocketServerExtension HandshakeExtension(WebSocketExtensionData extensionData)
{
if (!IsPerMessageDeflateExtension(extensionData.Name))
{
return(null);
}
bool deflateEnabled = true;
int clientWindowSize = MaxWindowSize;
int serverWindowSize = MaxWindowSize;
bool serverNoContext = false;
bool clientNoContext = false;
foreach (KeyValuePair <string, string> parameter in extensionData.Parameters)
{
var parameterKey = parameter.Key;
switch (parameterKey)
{
case ClientMaxWindow:
// use preferred clientWindowSize because client is compatible with customization
clientWindowSize = _preferredClientWindowSize;
break;
case ServerMaxWindow:
// use provided windowSize if it is allowed
if (_allowServerWindowSize)
{
serverWindowSize = int.Parse(parameter.Value);
uint userverWindowSize = (uint)serverWindowSize;
if (userverWindowSize > (uint)MaxWindowSize || userverWindowSize < (uint)MinWindowSize)
{
deflateEnabled = false;
}
}
else
{
deflateEnabled = false;
}
break;
case ClientNoContext:
// use preferred clientNoContext because client is compatible with customization
clientNoContext = _preferredClientNoContext;
break;
case ServerNoContext:
// use server no context if allowed
if (_allowServerNoContext)
{
serverNoContext = true;
}
else
{
deflateEnabled = false;
}
break;
default:
if (string.Equals(ClientMaxWindow, parameterKey, StringComparison.OrdinalIgnoreCase))
{
// use preferred clientWindowSize because client is compatible with customization
clientWindowSize = _preferredClientWindowSize;
}
else if (string.Equals(ServerMaxWindow, parameterKey, StringComparison.OrdinalIgnoreCase))
{
// use provided windowSize if it is allowed
if (_allowServerWindowSize)
{
serverWindowSize = int.Parse(parameter.Value);
uint userverWindowSize = (uint)serverWindowSize;
if (userverWindowSize > (uint)MaxWindowSize || userverWindowSize < (uint)MinWindowSize)
{
deflateEnabled = false;
}
}
else
{
deflateEnabled = false;
}
}
else if (string.Equals(ClientNoContext, parameterKey, StringComparison.OrdinalIgnoreCase))
{
// use preferred clientNoContext because client is compatible with customization
clientNoContext = _preferredClientNoContext;
}
else if (string.Equals(ServerNoContext, parameterKey, StringComparison.OrdinalIgnoreCase))
{
// use server no context if allowed
if (_allowServerNoContext)
{
serverNoContext = true;
}
else
{
deflateEnabled = false;
}
}
else
{
// unknown parameter
deflateEnabled = false;
}
break;
}
if (!deflateEnabled)
{
break;
}
}
if (deflateEnabled)
{
return(new WebSocketPermessageDeflateExtension(_compressionLevel, serverNoContext,
serverWindowSize, clientNoContext, clientWindowSize, _extensionFilterProvider));
}
else
{
return(null);
}
}
