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conditional methods and WebDAV

From: Arnaud Quillaud <Arnaud.Quillaud@Sun.COM>
Date: Wed, 08 Aug 2007 18:30:18 +0200
To: w3c-dist-auth@w3.org
Message-id: <0JMG003HYR5HXOAU@d1-emea-09.sun.com>

Hello,

HTTP defines a few conditional headers (if-* headers) and so does WebDAV (if header). In both cases those headers can be used "to make *a* method conditional". There is no table listing which method can be made conditional.
By reading between the lines one can guess that the if-* headers main purpose is for GET/PUT methods while if can be applied to pretty much any method but that is about it.

This brings up a few questions:
* is the choice to make one method conditional or not left to server implementations ?
* how can a client discover whether a particular method honor one of the if* headers (e.g. DELETE with if-match, PROPPATCH with if-unmodified-since or PROPFIND with if-modified-since) ?
* should the WebDAV if header be honored on all HTTP/WebDAV/*DAV methods ?

Thanks,

Arnaud Q
Received on Wednesday, 8 August 2007 16:32:56 GMT

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