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Translated by: Nilgün Belma Bugüner <nilgun belgeler.org>
Reviewed by: Orhan Berent <berent belgeler.org>


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Submitted by: Per Lundberg (Per.Lundberg bredband.com)


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Submitted by: Shawn Ashlee (shawn.ashlee rackspace.com)


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ABA problem and avoidance because only caller is single listener thread


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@633612 13f79535-47bb-0310-9956-ffa450edef68

into a copy runas administrator with permissions (closing the original monitor),
in response to any start/stop/restart request who's control permissions failed.
This happens to work on Win2000 and later, although it is actually needed in 
Win2008 or Vista and later, where by default under UAC, the admin user actually 
has no permissions to control services unless the app is run elevated.  

We don't want to do this at start time, and assault the user with auth attempts
at login before they have even asked to use the features of the Monitor.  Once
we've made the transition, we'll leave the new monitor running elevated.  Some
branding with the "security" shield icon is actually recommended by the CUA, but
I'm neglecting this for the moment.

This patch drops the single instance mutex for a search of existing windows of 
our window's class & title, which is localized to the current session and just fine
for the purpose of restricting multiple invocations.




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Clean up provider interface, removing use of mod_ssl-specific types:

* modules/ssl/ssl_private.h (modssl_sesscache_provider): Replace BOOL
  with apr_status_t, UCHAR with unsigned char; use 'unsigned int' for
  idlen; constify id arguments; remove pool argument from ->status.

* modules/ssl/ssl_scache_dc.c, modules/ssl/ssl_scache_memcache,
  modules/ssl/ssl_scache_shmcb.c, modules/ssl_scache_dbm.c: Update
  accordingly.

* modules/ssl/ssl_scache.c (ssl_scache_retrieve, ssl_scache_store):
  Adjust for BOOL->apr_status_t change.
  (ssl_ext_status_hook): Update for dropped pool argument.


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  (1) Fix Origin checking (PR 36783 - Robert L Mathews)
  (2) Check ownership if both FollowSymlinks and SymlinksIfOwnerMatch are set


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replace all relevant ascii strxxx fn's with _tcsxxx macros and encode relevant text
with the _T() macro wrapper, permitting /D UNICODE builds in place of /D _MCBS
builds in use today.  This allows for internationalized unicode service names and
textual modification.  Since this is win32 only, using APR style utf-8-ization is silly.

Because today this module simply isn't loadable on Win95-ME, nobody has actually
complained, and we really have no desire to support such a dangerous OS in the
wild of the internet, the unicode build should become the default.



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  causing revalidation.

PR: 44511


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didn't pick up on updated sdbm maps due to this.
PR41190 [Niklas Edmundsson]

NOTE: Only tested on httpd-2.2.8.



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Submitted privately by: Markus Weber <Weber.Markus akdb.de>


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This forces rotatelogs to create the logfile as soon
as started not as soon as it sees it's first line
of input.



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  GET http://[3ffe:1:1001:3000:230:5ff:fe05:3c3c]/server-status HTTP/1.0
through the httpd-2.x mod_proxy.c code, while a directive
  ProxyDomain .my.dom.ain
is in effect, the request is redirected to
  Location: http://[3ffe:1:1001:3000:230:5ff:fe05:3c3c.my.dom.ain]/server-status

The patch fixes this bug, by testing whether the hostname part of the
unparsed_uri contains colon characters (which is the case only for
IPv6 literals).

This patch is also a candidate for httpd-2.0 and httpd-2.2


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  cache is configured or the session is thread safe.


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AP_INIT_ITERATE parameter


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Move mutex handling up out of the session cache providers:

* modules/ssl/ssl_private.h (modssl_sesscache_provider): Add name and 
  flags fields.  Define MODSSL_SESSCACHE_FLAG_NOTMPSAFE constant.

* modules/ssl/ssl_scache.c (ssl_scache_store, ssl_scache_retrieve,
  ssl_scache_remove, ssl_ext_status_hook): Lock and release the mutex
  around provider calls, if necessary.

* modules/ssl/ssl_engine_mutex.c (ssl_mutex_init): Do nothing if no
  session cache is configured, or the session cache does not require a
  mutex.  Otherwise, fail if no mutex is configured and the session
  cache *does* require a mutex.
  (ssl_mutex_on, ssl_mutex_off): Remove checks for mutex mode;
  functions now invoked only if necessary.

* modules/ssl/ssl_scache_dc.c, modules/ssl/ssl_scache_memcache: Set
  name and flags fields in provider structures.

* modules/ssl/ssl_scache_shmcb.c, modules/ssl_scache_dbm.c: Remove
  mutex handling through; set name and flags fields in provider
  structures; mark both as unsafe for concurrent access in flags.


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  key id generation by passing the correct length to snprintf (it
  was NUL terminating at the second byte with len=2);


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  if no provider is configured.

Submitted by: rpluem


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  the temporary pool from the context.  (missed in r630974)

Found by: rpluem


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Use the ap_provider interface for session cache storage providers.

* modules/ssl/mod_ssl.c (modssl_register_scache): New function.
  (ssl_register_hooks): Call it.

* modules/ssl/ssl_private.h: Define MODSSL_SESSCACHE_PROVIDER_GROUP
  and MODSSL_SESSCACHE_PROVIDER_VERSION constants.
  Remove ssl_scmode_t type.  Change nSessionCacheMode in
  SSLModConfigRec into a long sesscache_mode, storing the OpenSSL
  SSL_SESS_CACHE_* flags directly.

* modules/ssl/ssl_engine_config.c (ssl_config_global_create): Set
  sesscache_mode to SSL_SESS_CACHE_OFF by default.
  (ssl_cmd_SSLSessionCache): Remove ifdef spaghetti; fetch configured
  session cache by provider name.  Set mc->sesscache_mode for
  configured providers.

* modules/ssl/ssl_engine_init.c (ssl_init_ctx_session_cache): Use the
  configured mode flags directly from mc->sesscache_mode.


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  r630974; create the subpool.


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