Merge of r1771001,1771015 from trunk:

mod_http2: new directive H2EarlyHints

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1771018 13f79535-47bb-0310-9956-ffa450edef68

backport prop

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1771005 13f79535-47bb-0310-9956-ffa450edef68

Merge of r1769596,1769600,1770395,1770998 from trunk

mod_http2: PUSH triggers only on GET
mod_proxy_http2: 1xx responses not forwarded unconditionally on HTTP/1.x connections

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1771000 13f79535-47bb-0310-9956-ffa450edef68

thanks, now in the branch

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1770847 13f79535-47bb-0310-9956-ffa450edef68

these look like works in progress (??)

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1770839 13f79535-47bb-0310-9956-ffa450edef68

Merge r1756542 from trunk:

mod_ssl: Fix quick renegotiation (OptRenegotiaton) with no intermediate
in the client certificate chain.  PR 55786.

This is done by handling an empty cert chain as no/NULL chain.

Submitted by: ylavic
Reviewed/backported by: jim

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1770838 13f79535-47bb-0310-9956-ffa450edef68

promote

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tests OK

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Hmmm....

Was folded into Revision 1769595 ??

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1770830 13f79535-47bb-0310-9956-ffa450edef68

votes

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comment on proposal

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vote+promote

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note docs commit in proposal

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1770773 13f79535-47bb-0310-9956-ffa450edef68

Split proposal for PR 53555 into smaller chunks

Replace jim's proposal into smaller chunks that are IMHO easier to review.

The end result is the same, except for the CHANGES entry and one comment that I
added to r1770752 vs. the Bugzilla patch and that was missing in jim's patch.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1770769 13f79535-47bb-0310-9956-ffa450edef68

Another bit o' lint

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And the final trunk related bit

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Propose backport,

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1770759 13f79535-47bb-0310-9956-ffa450edef68

Merge r1752331, r1752332, r1752333 from trunk:

CMake: use CMAKE_REQUIRED_INCLUDES to find APR macros

When using CMake with Visual Studio on Windows, invoking the
CHECK_SYMBOL_EXISTS macro with the full paths to the include files seems
to always result in failure.

Instead, use the documented CMAKE_REQUIRED_INCLUDES variable to set the
include directory, and pass only the headers' base names to
CHECK_SYMBOL_EXISTS.

CMake: use generator expressions to find output files

Multi-configuration generators, like Visual Studio, use a different
output directory (Debug, Release, etc.) for each configuration. To find
the output files reliably, switch to using generator expressions instead
of hardcoding the file paths for PDBs, export files, etc.

CMake: quote installation paths

Deal with installation paths with spaces in them (e.g. "C:\Program
Files") by quoting the arguments to perl and xcopy.
Submitted by: jchampion
Reviewed/backported by: jim

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1770674 13f79535-47bb-0310-9956-ffa450edef68

Merge r1769332 from trunk:

ssl: clear the error queue before SSL_read/write/accept()

If other modules or libraries do not clear the OpenSSL error queue after
a failed operation, other code that relies on SSL_get_error() -- in
particular, code that deals with SSL_ERROR_WANT_READ/WRITE logic -- will
malfunction later on. To prevent this, explicitly clear the error queue
before calls like SSL_read/write/accept().

PR: 60223
Submitted by: Paul Spangler <paul.spangler ni.com>
Submitted by: jchampion
Reviewed/backported by: jim

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1770673 13f79535-47bb-0310-9956-ffa450edef68

Merge r1698334 from trunk:

Avoid adding duplicate subequest filters, as they would not be stripped
properly during an ap_internal_fast_redirect.

Submitted by: covener
Reviewed/backported by: jim

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1770672 13f79535-47bb-0310-9956-ffa450edef68

XML updates.

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XML updates.

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Rebuild.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1770504 13f79535-47bb-0310-9956-ffa450edef68

XML updates.

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documentation rebuild

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1770154 13f79535-47bb-0310-9956-ffa450edef68

Merge r1769899 from trunk:

Added a note in the mod_headers docs about Content-Type and setifempty

This note has been added as a follow up of a stack overflow post
(thanks to Michael Allan for the research):

http://stackoverflow.com/questions/29398123/apache-2-4-set-mime-type-of-file-without-extension

After a chat in #httpd-dev it seems that the issue boils down to how %{CONTENT_TYPE}
is evaluated in util_expr_eval.c (r->content_type) vs how setifempty is (only a check
of the response headers). This particular behavior might be a bug or feature,
but it is worth to alert our users.

Submitted by: elukey

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1770153 13f79535-47bb-0310-9956-ffa450edef68

Vote and promote

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1770022 13f79535-47bb-0310-9956-ffa450edef68

Documentation rebuild

This commit also revert my last one about H2PushResource.
After a chat on #http-dev we decided to make it public since
it holds a Compatibility section.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1769853 13f79535-47bb-0310-9956-ffa450edef68

Revert introduction of H2PushResource on 2.4 docs

The directive will be available only from 2.4.24 onwards,
reverting to avoid confusing users.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1769791 13f79535-47bb-0310-9956-ffa450edef68

documentation rebuild

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1769786 13f79535-47bb-0310-9956-ffa450edef68

Merge r1769637 from trunk:

Unified duplicate warning in mod_proxy ProxyPass documentation.

Also changed terminology to be in sync with:
https://httpd.apache.org/docs/current/mod/directive-dict.html#Context

It was confusing in my opinion to read that ProxyPass wasn't supported
for the <Directory> context (since "directory" semantic is already
overloaded).

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1769784 13f79535-47bb-0310-9956-ffa450edef68

Promote one patch, propose one historically tangled patch

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1769677 13f79535-47bb-0310-9956-ffa450edef68

Merge r1733538 from trunk (follow up to 2.4.21's r1746997):

ab: follow up to r1733537: CHANGES entry.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1769610 13f79535-47bb-0310-9956-ffa450edef68

Merge r1769593 from trunk (mergeinfo for r1769601):

Updated changelog with the last change of mod_proxy_fcgi

r1759984, r1760018 and r1752347 are all changes related
to a bug fixed for mod_proxy_fcgi.

Submitted by: elukey

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1769609 13f79535-47bb-0310-9956-ffa450edef68

Merge r1764046 from trunk (mergeinfo for r1769599):

Following up on r1764040, add the CHANGES entry.

Submitted by: kotkov

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1769608 13f79535-47bb-0310-9956-ffa450edef68

Merge of r1769600 from trunk:

mod_http2: fixes for compiler warnings

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1769604 13f79535-47bb-0310-9956-ffa450edef68

Merge r1769593 from trunk: follow up to r1764075: update CHANGES entry.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1769601 13f79535-47bb-0310-9956-ffa450edef68

Merge r1764046 from trunk: follow up to r1766683: CHANGES entry.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1769599 13f79535-47bb-0310-9956-ffa450edef68

Merge of r1767936,1768160,1769192,1769550 from trunk:

mod_http2: new directive 'H2PushResource' to enable early pushes before
     processing of the main request starts. Resources are announced to the
     client in Link headers on a 103 early hint response.
     All responses with status code <400 are inspected for Link header and
     trigger pushes accordingly. 304 still does prevent pushes.
     'H2PushResource' can mark resources as 'critical' which gives them higher
     priority than the main resource. This leads to preferred scheduling for
     processing and, when content is available, will send it first. 'critical'
     is also recognized on Link headers.

mod_proxy_http2: uris in Link headers are now mapped back to a suitable
     local url when available. Relative uris with an absolute path are mapped
     as well. This makes reverse proxy mapping available for resources
     announced in this header.
     With 103 interim responses being forwarded to the main client connection,
     this effectively allows early pushing of resources by a reverse proxied
     backend server.
     adding support for newly proposed 103 status code.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1769595 13f79535-47bb-0310-9956-ffa450edef68

Rebuild.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1769495 13f79535-47bb-0310-9956-ffa450edef68

XML update.

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* Vote

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1769343 13f79535-47bb-0310-9956-ffa450edef68

Propose patch for PR60223

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UTF-8 character encoding.

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Rebuild.

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XML updates.

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Comment, promote

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Propose

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1769196 13f79535-47bb-0310-9956-ffa450edef68

xform

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duplicate "the". Fold line

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mod_socache_memcache mod_status hook data

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Merge r1739201 from trunk:

http: Respond with "408 Request Timeout" when a timeout occurs while
reading the request body.

Submitted by: ylavic
Reviewed/backported by: jim

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1768079 13f79535-47bb-0310-9956-ffa450edef68

Merge r1766160 from trunk:

mpm_unix: Apache fails to start if previously crashed then restarted with
the same PID (e.g. in container).  PR 60261.

Proposed by: Val <valentin.bremond gmail.com>
Reviewed by: ylavic

Submitted by: ylavic
Reviewed/backported by: jim

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promote

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Some votes

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Rebuild

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Merge of r1767803 from trunk.

mod_http2: fix for beam double cleanup crashes introduced in 1.7.7

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1767805 13f79535-47bb-0310-9956-ffa450edef68

vote/promote

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1767655 13f79535-47bb-0310-9956-ffa450edef68

re-propose PR58292 with the revision that was sitting in trunk.

e--This line, and those below, will be ignored--

M    STATUS

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work in progress

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1767650 13f79535-47bb-0310-9956-ffa450edef68

Revert 1767482

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1767649 13f79535-47bb-0310-9956-ffa450edef68

kill bad backport

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1767648 13f79535-47bb-0310-9956-ffa450edef68

revert 1767482 backport

cleanup next

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1767647 13f79535-47bb-0310-9956-ffa450edef68

Merge of r1766857,1767128,1767180,1767181,1767553 from trunk

mod_http2/mod_proxy_http2 improvments as in CHANGES

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1767563 13f79535-47bb-0310-9956-ffa450edef68

Merge r1688399 from trunk:

mod_remoteip: Use r->useragent_addr as the root trusted address for verifying.

This fixes issue resulting in setting of bad useragent_ip when internal
redirection has been generated as response to the request (typically as
result of "ErrorDocument 40x").

In this case, the original request has been handled by mod_remoteip and its
useragent_ip has been changed properly, but when internal redirection
to ErrorDocument has been generated later, the mod_remoteip's handler has been
executed again with *the same* c->client_addr as in the original request. If
c->client_addr IP is trusted, this results in bad useragent_ip being set.

When using r->useragent_addr as the root trusted address instead of
c->client_addr, the internal redirection uses the first non-trusted
IP in this particular case, so it won't change the r->useragent_ip during
the internal redirection to ErrorDocument.

Submitted by: jkaluza
Reviewed/backported by: jim

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1767483 13f79535-47bb-0310-9956-ffa450edef68

Merge r1698239 from trunk:
Submitted by: covener
Reviewed/backported by: jim

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1767482 13f79535-47bb-0310-9956-ffa450edef68

promotes

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1767481 13f79535-47bb-0310-9956-ffa450edef68

votes

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1767480 13f79535-47bb-0310-9956-ffa450edef68

Propose.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1766909 13f79535-47bb-0310-9956-ffa450edef68

Merge r1728804 from trunk:

Add mod_proxy_hcheck to the Netware build
system.

Contributed by NormW.

Submitted by: rjung

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1766906 13f79535-47bb-0310-9956-ffa450edef68

Add missing mod_proxy exports for NetWare.

Proposed by Norm.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1766905 13f79535-47bb-0310-9956-ffa450edef68

Merge of r1765328,1766424,1766691,1766851 from trunk:

mod_http2: v1.7.7, connection shutdown revisited, AP_DEBUG_ASSERT transformed to real asserts

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1766856 13f79535-47bb-0310-9956-ffa450edef68

Merge r1764040 from trunk:

mod_dav: Fix a potential cause of unbounded memory usage or incorrect
behavior in a routine that sends <DAV:response>'s to the output filters.

The dav_send_one_response() function accepts the current head of the output
filter list as an argument, but the actual head can change between calls to
ap_pass_brigade().  This can happen with self-removing filters, e.g., with
the filter from mod_headers or mod_deflate.  Consequently, executing an
already removed filter can either cause unwanted memory usage or incorrect
behavior.

This patch changes the signature of the existing mod_dav's public API,
dav_send_one_response(), because this API is not yet a part of any 2.4.x
release.

* modules/dav/main/mod_dav.c
  (dav_send_one_response): Accept a request_rec instead of an ap_filter_t.
   Write the response to r->output_filters.
  (dav_send_multistatus, dav_stream_response): Update these calling sites
   of dav_send_one_response().

* modules/dav/main/mod_dav.h
  (dav_send_one_response): Adjust definition.

Submitted by: kotkov
Reviewed/backported by: jim

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1766683 13f79535-47bb-0310-9956-ffa450edef68

Fix typo and encoding.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1766447 13f79535-47bb-0310-9956-ffa450edef68

AP_MAYBE_UNUSED is useful right now.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1766446 13f79535-47bb-0310-9956-ffa450edef68

Follow up to r1766373: merge infos.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1766381 13f79535-47bb-0310-9956-ffa450edef68

update after backport

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1766373 13f79535-47bb-0310-9956-ffa450edef68

Merge of r1750392,r1750412,r1750416,r1750474,r1750494,r1750508 from trunk:

mod_proxy_{http,ajp,fcgi}: don't reuse backend connections with data
     available before the request is sent.  PR 57832.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1766372 13f79535-47bb-0310-9956-ffa450edef68

vote and promote

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1766369 13f79535-47bb-0310-9956-ffa450edef68

Merge of r1766308 from trunk:

mod_http2: fixed potential crash in beam memory handling introduced in 1.7.x changes

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1766311 13f79535-47bb-0310-9956-ffa450edef68

Rebuild.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1766212 13f79535-47bb-0310-9956-ffa450edef68

XML updates.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1766211 13f79535-47bb-0310-9956-ffa450edef68

Propose.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1766162 13f79535-47bb-0310-9956-ffa450edef68

Votes.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1766144 13f79535-47bb-0310-9956-ffa450edef68

Vote (adding relevent entries part of the backport proposal).

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1766139 13f79535-47bb-0310-9956-ffa450edef68

Merge r1766129 from trunk:

Fix -Wunused-but-set-variable warnings.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1766130 13f79535-47bb-0310-9956-ffa450edef68

xforms

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1766107 13f79535-47bb-0310-9956-ffa450edef68

Merge r1766103 from trunk:

Fine tune description

Reviewed/backported by: jim

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1766106 13f79535-47bb-0310-9956-ffa450edef68

Merge r1766103 from trunk:

Fine tune description

Reviewed/backported by: jim

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1766104 13f79535-47bb-0310-9956-ffa450edef68

xforms

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1766101 13f79535-47bb-0310-9956-ffa450edef68

Merge r1766097 from trunk:

Some caching info

Reviewed/backported by: jim

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1766098 13f79535-47bb-0310-9956-ffa450edef68

Update cache proposal

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1766081 13f79535-47bb-0310-9956-ffa450edef68

svn:keywords = LastChangedRevision

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1765771 13f79535-47bb-0310-9956-ffa450edef68

update transformation

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1765769 13f79535-47bb-0310-9956-ffa450edef68

Merge of r1765420 from trunk:

mod_http2: netware build add new symbol used from nghttp2

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1765421 13f79535-47bb-0310-9956-ffa450edef68

Merge r1765357 from trunk:

docs: add "threat model" warning to ProxyHTMLMeta

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1765368 13f79535-47bb-0310-9956-ffa450edef68

Merge of  1764243,1765318 from trunk:

mod_http2/mod_proxy_http2: 100-continue implementation, PING checks on aged backend connections

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1765327 13f79535-47bb-0310-9956-ffa450edef68

I missed this in r1763229

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1765099 13f79535-47bb-0310-9956-ffa450edef68

add remoteip thing w/ two reports

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1764958 13f79535-47bb-0310-9956-ffa450edef68

propose PR58292 fix.

old patch I forgot to backport and don't remember
found by a new user on 2.4

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1764930 13f79535-47bb-0310-9956-ffa450edef68