- From: Joseph Reagle <reagle@w3.org>
- Date: Thu, 10 Jan 2002 18:45:43 -0500
- To: Paul Denning <pauld@mitre.org>, xmldsig <w3c-ietf-xmldsig@w3.org>
- Cc: <xml-dist-app@w3.org>
[Resulting document: http://www.w3.org/Signature/Drafts/xml-exc-c14n $Revision: 1.27 $ on $Date: 2002/01/10 20:09:49 $ GMT by $Author: reagle $ ] Thank you for your comments Paul! Paul Denning wrote: >As discussed in the telecon, here is additional comments on Exclusive XML >Canonicalization [4]: >Add a section 2.3 that uses actual SOAP messages as an example. I considered this might be useful as an informative appendix and reviewed [a] for examples (1-5) that would be useful to show a payload being selected via XPath and exc-c14n However, things are relatively straightforward. I'm not sure it would demonstrate anything more about exc-c14n or SOAP over that which is already shown in the very examples that try to simply demonstrate some of the concepts involved. (See end of email for example.) [a] http://www.w3.org/TR/soap12-part0/ >Also, section 1.1 terminology, could use examples to illustrate apex node >and orphan node. Ok, please see simple (ps-tree like) diagram and description now in the spec. >In section 2.2, the 3rd example uses a namespace prefix "ns3", which I >think should be "n3". See <ns3:stuff> within <n1:elem2 .... Fixed. >Section 3, should reinforce that the begins with "One method for >implementing ..." is non-normative. /+(non-normative)+/ >I am still collecting my thoughts on other ideas triggered by reading this >document, but these are more concerned with words we should add to >SOAP 1.2 documents, rather than anything additional for XML >Encryption WG documents. For example, I'm interested in the reslolution of the issues you identified for the XP WG? Have the been addressed? __ I took the example 1, selected the content of the env:Header. [1] the result being [2]. c14n_nodelist = xpath.Evaluate('(//. | //@* | //namespace::*)[ancestor::env:Header]', context=con) (Note that the example in the spec isn't well-formed. (For example, the closing m:reference tag is missing a prefix. There were other problems I can't identify and maybe were related to my cut-paste from the browser...) In the result you see that m:reservation now has the env: declaration, and some of the attributes/ns nodes have been re-ordered but that is already shown in the spec. [1] eg3 = """<?xml version='1.0' ?> <env:Envelope xmlns:env="http://www.w3.org/2001/12/soap-envelope"> <env:Header> <m:reservation xmlns:m="http://travelcompany.example.org/reservation" env:actor="http://www.w3.org/2001/12/soap-envelope/actor/next" env:mustUnderstand="true"> <m:reference>uuid:093a2da1-q345-739r-ba5d-pqff98fe8j7d</m:reference> <m:dateAndTime>2001-11-29T13:20:00.000-05:00</m:dateAndTime> </m:reservation> <n:passenger xmlns:n="http://mycompany.example.com/employees" env:actor="http://www.w3.org/2001/12/soap-envelope/actor/next" env:mustUnderstand="true"> <n:name>John Q. Public</n:name> </n:passenger> </env:Header> <env:Body> <p:itinerary xmlns:p="http://travelcompany.example.org/reservation/travel"> <p:departure> <p:departing>New York</p:departing> <p:arriving>Los Angeles</p:arriving> <p:departureDate>2001-12-14</p:departureDate> <p:departureTime>late afternoon</p:departureTime> <p:seatPreference>aisle</p:seatPreference> </p:departure> <p:return> <p:departing>Los Angeles</p:departing> <p:arriving>New York</p:arriving> <p:departureDate>2001-12-20</p:departureDate> <p:departureTime>mid morning</p:departureTime> <p:seatPreference/> </p:return> </p:itinerary> <q:lodging xmlns:q="http://travelcompany.example.org/reservation/hotels"> <q:preference>none</q:preference> </q:lodging> </env:Body> </env:Envelope> """ [2] <m:reservation xmlns:env="http://www.w3.org/2001/12/soap-envelope" xmlns:m="http://travelcompany.example.org/reservation" env:actor="http://www.w3.org/2001/12/soap-envelope/actor/next" env:mustUnderstand="true"> <m:reference>uuid:093a2da1-q345-739r-ba5d-pqff98fe8j7d</m:reference> <m:dateAndTime>2001-11-29T13:20:00.000-05:00</m:dateAndTime> </m:reservation> <n:passenger xmlns:env="http://www.w3.org/2001/12/soap-envelope" xmlns:n="http://mycompany.example.com/employees" env:actor="http://www.w3.org/2001/12/soap-envelope/actor/next" env:mustUnderstand="true"> <n:name>John Q. Public</n:name> </n:passenger> -- Joseph Reagle Jr. http://www.w3.org/People/Reagle/ W3C Policy Analyst mailto:reagle@w3.org IETF/W3C XML-Signature Co-Chair http://www.w3.org/Signature/ W3C XML Encryption Chair http://www.w3.org/Encryption/2001/
Received on Thursday, 10 January 2002 18:48:51 UTC