Hello David, Please see my comments below.
Cheers Brian DePradine Web Services Development IBM Hursley External +44 (0) 1962 816319 Internal 246319 If you can't find the time to do it right the first time, where will you find the time to do it again? "David Illsley" <[EMAIL PROTECTED]> wrote on 09/10/2007 14:04:37: > As discussed a couple of months back, the current one-shot > WS-Addressing header extraction isn't suited for use with security. > This is because either: > 1. Addressing runs before security and populates fields such as > ReplyTo/FaultTo which, if later found to be invalid would not be > un(de?)populated (which is a security risk). > 2. Addressing runs after security, hence interoperable Operation-Level > security is not possible as it relies on the WS-A Action/WS-A > RelatesTo for operation identification. > > I've thought about this problem a fair bit and I'm of the opinion that > security is important enough that we should break the WS-A headers > apart and change the model slightly. > > The following proposal is very much open to change, but I do believe > is in the right general direction. > > AddressingDispatchExtractor > -- Extracts wsa:Action and/or wsa:RelatesTo value > -- Determines the correct AxisOperation/OperationContext for security > -- Does not set them in normal place on message context in case > they are invalid > -- Places them on message context as properties > -- Sets WS-A namespace on message context to allow security + later > WS-A handers to proces the correct headers > > SecurityHandler(s) > -- Configured based on the AxisOperation extracted by the > AddressingDispatchExtractor > -- Validates the WS-A headers with the selected namespace (if appropriate) > > AddressingRemainderInHandler > -- Extracts remaining WS-A headers and sets them on the MessageContext > -- Amalgem of AddressingFinalInHandler and AddressingSubmissionInHandler > -- Namespace has already been selected so makes sense to combine Are you saying that the AddressingRemainderInHandler will no longer set the wsa:Action and wsa:RelatesTo values on the message context? I am trying to understand what you mean by "Remainder". Isn't this just the current AddressingInHandler with the function of the AddressingFinalInHandler and AddressingSubmissionInHandler pushed down into it? > > General Dispatchers > > SecuredAddressingDispatchValidator > -- Verfies that the AxisOperation to be invoked matches the > AxisOperation used for security configuration > -- Only required if security is engaged > > Backwards Compatibility > -- For users who haven't modified the WS-A Module - no backwards > copat issues > -- For users who have, need to modify their custom module.xml to use > the new handlers > > Anyone have any thoughts on this? > Cheers, > David > > -- > David Illsley - IBM Web Services Development > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > Unless stated otherwise above: IBM United Kingdom Limited - Registered in England and Wales with number 741598. Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU
