// The demand is not added now (in 4.5), to avoid a breaking change. To be considered in the next version.
/*
* // We demand full trust because we call into CoordinationContext and CoordinationStrings, which are defined in a non-APTCA assembly. Also, CoordinationStrings.Version(..)
* // does an Environment.FailFast if the argument is invalid. It's recommended to not let partially trusted callers to bring down the process.
* // WSATs are not supported in partial trust, so customers should not be broken by this demand.
* [PermissionSet(SecurityAction.Demand, Unrestricted = true)]
*/
public static CoordinationContext GetCoordinationContext(Message message, ProtocolVersion protocolVersion)
{
CoordinationStrings coordinationStrings = CoordinationStrings.Version(protocolVersion);
string locWsatHeaderElement = coordinationStrings.CoordinationContext;
string locWsatNamespace = coordinationStrings.Namespace;
int index;
try
{
index = message.Headers.FindHeader(locWsatHeaderElement, locWsatNamespace);
}
catch (MessageHeaderException e)
{
DiagnosticUtility.TraceHandledException(e, TraceEventType.Warning);
return(null);
}
if (index < 0)
{
return(null);
}
CoordinationContext context;
XmlDictionaryReader reader = message.Headers.GetReaderAtHeader(index);
using (reader)
{
context = GetCoordinationContext(reader, protocolVersion);
}
MessageHeaderInfo header = message.Headers[index];
if (!message.Headers.UnderstoodHeaders.Contains(header))
{
message.Headers.UnderstoodHeaders.Add(header);
}
return(context);
}
