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mod_http2: fix for beam double cleanup crashes introduced in 1.7.7


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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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cleanup next



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mod_http2/mod_proxy_http2 improvments as in CHANGES


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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


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Submitted by: covener
Reviewed/backported by: jim


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Add mod_proxy_hcheck to the Netware build
system.

Contributed by NormW.

Submitted by: rjung


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Proposed by Norm.


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


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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


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



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


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Fix -Wunused-but-set-variable warnings.


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Fine tune description

Reviewed/backported by: jim


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Fine tune description

Reviewed/backported by: jim


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Some caching info

Reviewed/backported by: jim


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