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  No functional changes.


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Previously, if the cached copy was stale, the response would go into an
indeterminate state.  Therefore, the freshness check must be done before we
'accept' the response and, if it fails (i.e.  stale), we can't allow any side
effects.

This caused a number of changes to how mod_disk_cache reads its headers as
ap_scan_script_header_err() purposely has side-effects and that's
unacceptable.  So, factor out only what we need.

Also, remove the broken conditional filter code as you can't reliably alter the
 filter list once the response is started.  (Regardless, cache_select_url()
has the freshness checks now.)

Assist to Sascha Schumann for reporting mod_cache was busted.

This commit also includes the following fix to cache_storage:
Tell mod_mem_cache that we will no longer be serving this object if it is
stale


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* server/protocol.c (ap_rgetline_core): Never NUL terminate at
(*s)[-1] for caller-supplied *s.

Submitted by: Rici Lake <ricilake speedy.com.pe>
Reviewed by: jorton, jerenkrantz, trawick


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  Onto 2.0.53 (or sneaking back into 2.0.52?  time will tell.)


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  Bump for tentative 2.0.52 release - tag is APACHE_2_0_52_WROWE_RC1


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PR:
Obtained from:
Submitted by:	nd
Reviewed by:	nd, jorton, trawick, jerenkrantz


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/APACHE_2_0_BRANCH@105271 13f79535-47bb-0310-9956-ffa450edef68

due to disabled/empty caches.
PR:
Obtained from:
Submitted by:	Jess Holle
Reviewed by:	minfrin, bnicholes, trawick


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/APACHE_2_0_BRANCH@105270 13f79535-47bb-0310-9956-ffa450edef68

 (Technically, it invalidates FirstBill's vote; but I'll let it slide...)

Also propose the mod_disk_cache race condition fix.


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PR:
Obtained from:
Submitted by:	Jess Holle
Reviewed by:	minfrin, bnicholes, trawick


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/APACHE_2_0_BRANCH@105268 13f79535-47bb-0310-9956-ffa450edef68

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a flood of trouble reports in my inbox should count as a regression!  I win!


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PR:
Obtained from:
Submitted by:
Reviewed by:


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PR:
Obtained from:
Submitted by:
Reviewed by:


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'APACHE_2_0_BRANCH'.

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to httpd-2.0-cvs@.  OFFER ENDS SOON.


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Fix merging of the Satisfy directive, which was applied to
the surrounding context and could allow access despite configured
authentication.
PR: 31315
Submitted by:	Rici Lake <rici ricilake.net>
Reviewed by:	jorton, nd, pquerna, geoff


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* buildconf: Ensure that make never regenerates the mod_ssl expression
parser files from the lex/yacc sources.

* buildconf: Clean autoconf cache after running autoconf too.

* build/config.guess, build/config.sub: Remove since buildconf copies
these files from APR.

Reviewed by: trawick, jerenkrantz


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due to disabled/empty caches.
PR:
Obtained from:
Submitted by:	Jess Holle <jessh ptc.com>
Reviewed by:


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/APACHE_2_0_BRANCH@105209 13f79535-47bb-0310-9956-ffa450edef68

PR:
Obtained from:
Submitted by:
Reviewed by:


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PR:
Obtained from:
Submitted by:
Reviewed by:


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is enabled.  Previously, such urls would still be rejected with
404.

(original CHANGES entry tweaked to remove mention of status code;
404 is what you get with AllowEncodedSlashes Off, but with the
broken AllowEncodedSlashes On processing you actually got 400)

Submitted by:	trawick, stoddard
Reviewed by:	clar


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