public override bool CheckAccess(OperationContext operationContext, ref Message message)
{
base.CheckAccess(operationContext, ref message);
string action = operationContext.IncomingMessageHeaders.Action;
if (action == "urn:msdnmag/IService/GetRoles")
{
// messags in WCF are always read-once
// we create one copy to work with, and one copy to return back to the plumbing
MessageBuffer buffer = operationContext.RequestContext.RequestMessage.CreateBufferedCopy(int.MaxValue);
message = buffer.CreateMessage();
// get the username vale using XPath
XPathNavigator nav = buffer.CreateNavigator();
StandardNamespaceManager nsm = new StandardNamespaceManager(nav.NameTable);
nsm.AddNamespace("msdn", "urn:msdnmag");
XPathNavigator node =
nav.SelectSingleNode("s:Envelope/s:Body/msdn:GetRoles/msdn:username", nsm);
string parameter = node.InnerXml;
// check authorization
if (operationContext.ServiceSecurityContext.PrimaryIdentity.Name == parameter)
{
return(true);
}
else
{
return(GetPrincipal(operationContext).IsInRole("administrators"));
}
}
return(true);
}
public override bool CheckAccess(OperationContext operationContext, ref Message message)
{
base.CheckAccess(operationContext, ref message);
string action = operationContext.IncomingMessageHeaders.Action;
if (action == "urn:msdnmag/IService/GetRoles")
{
// messags in WCF are always read-once
// we create one copy to work with, and one copy to return back to the plumbing
MessageBuffer buffer = operationContext.RequestContext.RequestMessage.CreateBufferedCopy(int.MaxValue);
message = buffer.CreateMessage();
// get the username vale using XPath
XPathNavigator nav = buffer.CreateNavigator();
StandardNamespaceManager nsm = new StandardNamespaceManager(nav.NameTable);
nsm.AddNamespace("msdn", "urn:msdnmag");
XPathNavigator node =
nav.SelectSingleNode("s:Envelope/s:Body/msdn:GetRoles/msdn:username", nsm);
string parameter = node.InnerXml;
// check authorization
if (operationContext.ServiceSecurityContext.PrimaryIdentity.Name == parameter)
{
return true;
}
else
{
return (GetPrincipal(operationContext).IsInRole("administrators"));
}
}
return true;
}
