per-path authz and locking

I'm putting authz_read calls into mod_dav_svn's new locking functions,
so that we can continue the tradition of dealing with unreadable paths.

I'm not sure how mod_dav_svn should behave, though, in these scenarios:

* a request comes to LOCK/UNLOCK an unreadable file path.
   What should mod_dav_svn return?

         - "404 Path Not Found"?
         - "403 Forbidden"?
         - "401 Unauthorized"?

* a request comes in to discover an existing lock on an unreadable path.
   What should mod_dav_svn return?

         - "no lock present" (even if there is)
         - one of the other three 4XX errors above?

* a request comes in to discover all locks below a directory path.
   But some of those locked child-paths are unreadable. What should we
return?

         - only the readable locked-paths (& locks) ?
         - some sort of 4XX error?

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Received on Tue Dec 14 18:38:04 2004