public static AgreedExtensionParameter ResolveParameter(string parameter)
{
if (!ValidateParameter(parameter))
{
return(null);
}
var keyValuePair = parameter.TrimStart().TrimEnd().Split('=');
var inputParameterName = keyValuePair[0].TrimStart().TrimEnd();
ExtensionParameter matchedParameter = null;
foreach (var @param in AllAvailableParameters)
{
if (string.Compare(inputParameterName, @param.Name, StringComparison.OrdinalIgnoreCase) == 0)
{
matchedParameter = @param;
break;
}
}
switch (matchedParameter.Name)
{
case ServerNoContextTakeOverParameterName:
case ClientNoContextTakeOverParameterName:
{
return(new AgreedSingleParameter(matchedParameter.Name));
}
case ServerMaxWindowBitsParameterName:
case ClientMaxWindowBitsParameterName:
{
if (keyValuePair.Length == 1)
{
return(new AgreedValuableParameter <byte>(matchedParameter.Name, ((AbsentableValueParameter <byte>)matchedParameter).DefaultValue));
}
var inputParameterValue = keyValuePair[1].TrimStart().TrimEnd();
return(new AgreedValuableParameter <byte>(matchedParameter.Name, byte.Parse(inputParameterValue)));
}
default:
throw new NotSupportedException("Invalid parameter type.");
}
}
public static bool ValidateParameter(string parameter)
{
if (string.IsNullOrWhiteSpace(parameter))
{
return(false);
}
var keyValuePair = parameter.TrimStart().TrimEnd().Split('=');
var inputParameterName = keyValuePair[0].TrimStart().TrimEnd();
ExtensionParameter matchedParameter = null;
foreach (var @param in AllAvailableParameters)
{
if (string.Compare(inputParameterName, @param.Name, StringComparison.OrdinalIgnoreCase) == 0)
{
matchedParameter = @param;
break;
}
}
if (matchedParameter == null)
{
return(false);
}
switch (matchedParameter.ParameterType)
{
case ExtensionParameterType.Single:
{
if (keyValuePair.Length == 1)
{
return(true);
}
}
break;
case ExtensionParameterType.Valuable:
{
if (keyValuePair.Length != 2)
{
return(false);
}
var inputParameterValue = keyValuePair[1].TrimStart().TrimEnd();
if (((ValuableParameter <byte>)matchedParameter).ValueValidator.Invoke(inputParameterValue))
{
return(true);
}
}
break;
case ExtensionParameterType.Single | ExtensionParameterType.Valuable:
{
if (keyValuePair.Length == 1)
{
return(true);
}
if (keyValuePair.Length > 2)
{
return(false);
}
var inputParameterValue = keyValuePair[1].TrimStart().TrimEnd();
if (((AbsentableValueParameter <byte>)matchedParameter).ValueValidator.Invoke(inputParameterValue))
{
return(true);
}
}
break;
default:
throw new NotSupportedException("Invalid parameter type.");
}
return(false);
}