Merge r1780328, r1780329, r1781329, r1782164, r1782166, r1782193, r1778350, r1781329, r1782194, r1782323, r1782418, r1782419, r1782482, r1782532, r1788040 from trunk:

Adjust as needed

debugging

add ProxyFCGISetEnvIf


Logging update

Follow up to r1782164: fix typo (closing double-quote).

Remove trailing whitespace : no functional change

PR60576: php-fpm broken w/ per-dir rewrites

Attempt to dig out of well-meaning fixes for generic fcgi backends
that negatively affected some FPM configs.

Adds ProxyFCGIBackendType 


add ProxyFCGISetEnvIf


trailing whitespace

Allow final admin-level fine-tuning

mod_proxy_fcgi: fix spelling in APLOG_INFO message

mod_proxy_fcgi: allow setting empty variables in ProxyFCGISetEnvIf

support unsetting vars



ProxyFCGISetEnvIf: reject invalid invocations, streamline unsets

Neither of the following makes sense:
- ProxyFCGISetEnvIf cond !VARIABLE value
- ProxyFCGISetEnvIf cond !

Error out in these cases. Also, don't execute the (unused) replacement
expression when unsetting.

drop the longhand version


Submitted by: jim, covener, jim, ylavic, jim, covener, covener, jim, jim, jchampion, jchampion, covener, jchampion, covener
Reviewed by: jim, covener, jchampion


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1788445 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1788444 13f79535-47bb-0310-9956-ffa450edef68

mod_ssl: work around leaks on (graceful) restart.

Tested with valgrind and --with-ssl shared/static.


mod_ssl: follow up to r1781187.
The ssl_util_thread_*() functions are not necessary with openssl-1.1+


mod_ssl: follow up to r1781187.
Address SSL_CTX leak in (merged) proxy_ctx.


Reviewed by: ylavic, jim, wrowe


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1788442 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1788435 13f79535-47bb-0310-9956-ffa450edef68

https://www.openssl.org/docs/fips/ - using FIPS_mode_set(1) for revalidation
was actually expressly called out in section 3. While mod_ssl is 'unloaded'
(unconfigured) the process is not operating in a fips validated manner, but
once the configuration resets FIPS_mode_set(1) it resumes validated behavior.




git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1788258 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1788257 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1788060 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1788041 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1788039 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1788015 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1787942 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1787941 13f79535-47bb-0310-9956-ffa450edef68

donating lua server-status script, enjoy!
Submitted by: humbedooh
Reviewed by: humbedooh


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1787940 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1787737 13f79535-47bb-0310-9956-ffa450edef68

Add a warning in the docs about nested <If> blocks



git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1787736 13f79535-47bb-0310-9956-ffa450edef68

Look for specific versioned installs of Lua 5.3
Reviewed by: jim


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1787728 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1787567 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1787566 13f79535-47bb-0310-9956-ffa450edef68

nowhere to go but forward. Passes regression on 1.1.0 and on earlier openssl.



git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1787527 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1787303 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1787302 13f79535-47bb-0310-9956-ffa450edef68

avoid SO_REUSEPORT w/o ListenCoresBucketsRatio 

Can lead to unintended/confusing sharing between 
multiple servers started by the same ID.

Submitted by: covener
Reviewed by: jorton, covener, wrowe


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1787301 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1787249 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1787248 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1787104 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1787103 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1787005 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1786993 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1786896 13f79535-47bb-0310-9956-ffa450edef68

Add a note in the docs about evaluation of Location sections

The sections.html doc was missing, in my opinion, a direct
reference to the fact multiple Location blocks matching
a HTTP request will be evaluated in the order in which they
appear in the configuration files (same as Ifs, etc..).

Reworked a bit a single block of text to be a bit more readable.



git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1786895 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1786831 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1786687 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1786684 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1786601 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1786600 13f79535-47bb-0310-9956-ffa450edef68

 Merged /httpd/httpd/trunk:r1784571,1785672,1785683,1786512,1786575-1786576
 mod_http2/mod_proxy_http2 backport



git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1786582 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1786397 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1786022 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1786010 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1785987 13f79535-47bb-0310-9956-ffa450edef68