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Some programs look there for the http proxy server.


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backends not recycling connections (disablereuse), including the default
reverse and forward proxies.


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finally close those not meant to be kept alive by SetEnv proxy-nokeepalive
or force-proxy-request-1.0, and respond with 502 instead of 400 if its
Connection header is invalid.


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The logic is unchanged but 'ret' does not have the expected value. So the logged error message may be incorrect.

+ add some empty lines between functions

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They were added in r1542732.

The need of apr_version.h has been removed in r1561200.
The need of apr_hash.h has been removed in r1561211.

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input filter already did it while reading client's payload.

When an input filter returns AP_FILTER_ERROR, it has already called ap_die()
or at least already responded to the client.

Here we don't want to lose AP_FILTER_ERROR when returning from proxy handlers,
so we use ap_map_http_request_error() to forward any AP_FILTER_ERROR to
ap_die() which knows whether a response needs to be completed or not.

Before this commit, returning an HTTP error code in this case caused a double
response to be generated.

Depends on r1657881 to preserve r->status (for logging) when nothing is to be
done by ap_die() when handling AP_FILTER_ERROR.


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response status (finally logged) when nothing is to be done.


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issue in logs.html


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with more than a few dozen piped loggers.

Submitted by: Edward Lu



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case by using iteration instead of recursion.

We have a relatively small recursion limit of
about 10 operations. This is a compilation
limit (a define). It can be hit if many expr
vars or function calls are concatenated.

The new optimization is very similar to the
existing one, which optimizes consecutive
concatenations in node2 of the tree. The new
one optimizes consecutive concatenations in
node 1.


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at the same time, don't ignore errors while forwarding from the first side 
if none occurs next on the other side.  


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(no change under svn diff -x-w)



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     mod_lua: A maliciously crafted websockets PING after a script
     calls r:wsupgrade() can cause a child process crash.
     [Edward Lu <Chaosed0 gmail.com>]

Discovered by Guido Vranken <guidovranken gmail.com>

Submitted by: Edward Lu
Committed by: covener



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when the FIN bit was set.  Results in PING not being recognized
by mod_lua.  PR57524

Submitted By: Edward Lu
Committed By: covener



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on startup or restart when the module is linked statically. PR 57525

Submitted by: apache.org tech.futurequest.net
Committed by: Yann Ylavic


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The goal is to minimize the delay between this connection is considered alive
and the first bytes sent (should the client's link be slow or some input filter
retain the data).
This is a best effort to prevent the backend from closing (from under us) what
it thinks is an idle connection, hence to reduce to the minimum the unavoidable
local ap_proxy_is_socket_connected() vs remote keepalive race condition.
PR 56541.

Also, allow the new subprocess_env variable "proxy-flushall" to prevent any
buffering of the request body before it is forwarded to the backend.
When set, the prefetch is still done (although non-blocking), so we can still
determine Content-Length vs chunked vs spooled (depending on data available
with the header or while reading it), and then all brigades are flushed when
passed to the backend.
PR 37920.



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Fill empty APLOGNO().


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fire while the block is read not when it evaluates for a given
request.



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(parent directive).

Usually, this context is not also EXEC_ON_READ so it's not fully processed, so
e.g cmd->path is not fluffed up yet because the closing tag
of the section is not read yet and ap_check_cmd_context()
doesn't work)




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