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*) mod_http2: fixed a bug that caused mod_proxy_http2 to be called for window
updates on requests it had already reported done. Added synchronization
on early connection/stream close that lets ongoing requests safely drain
their input filters.
[Stefan Eissing]
*) mod_http2: scoreboard updates that summarize the h2 session (and replace
the last request information) will only happen when the session is idle or
in shutdown/done phase. [Stefan Eissing]
*) mod_http2: new "bucket beam" technology to transport buckets across
threads without buffer copy. Delaying response start until flush or
enough body data has been accumulated. Overall significanlty smaller
memory footprint. [Stefan Eissing]
*) core: New CGIVar directive can configure REQUEST_URI to represent the
current URI being processed instead of always the original request.
[Jeff Trawick]
*) scoreboard/status: Restore behavior of showing workers' previous Client,
VHost and Request values when idle, like in 2.4.18 and earlier.
*) mod_http2: r->protocol changed to "HTTP/2.0" (was "HTTP/2") as this will
give expected syntax in CGI's SERVER_PROTOCOL is more compatible with
existing major/minor handling. Fixes PR 59313.
*) mod_http2: disabling mmap for file buckets transport due to segmenation
faults when files change on the fly.
*) core: Do not read .htaccess if AllowOverride and AllowOverrideList
are "None". PR 58528.
[Michael Schlenker <msc contact.de, Ruediger Pluem, Daniel Ruggeri]
*) mod_proxy_express: Fix possible use of DB handle after close. PR 59230.
[Petr <pgajdos suse.cz>]
*) core/util_script: relax alphanumeric filter of enviroment variable names
on Windows to allow '(' and ')' for passing PROGRAMFILES(X86) et.al.
unadulterated in 64 bit versions of Windows. PR 46751.
[John <john leineweb de>]
*) mod_http2: incrementing keepalives on each request started so that logging
%k gives increasing numbers per master http2 connection.
New documented variables in env, usable in custom log formats: H2_PUSH,
H2_PUSHED, H2_PUSHED_ON, H2_STREAM_ID and H2_STREAM_TAG.
[Stefan Eissing]
*) mod_http2: more efficient passing of response bodies with less contention
and file bucket forwarding. [Stefan Eissing]
*) mod_http2: fix for missing score board updates on request count, fix for
memory leak on slave connection reuse. [Stefan Eissing]
*) mod_http2: Fix build on Windows from dsp files.
[Stefan Eissing]
*) mod_include: Add variable DOCUMENT_ARGS, with the arguments to the
request for the SSI document. [Jeff Trawick]
*) mod_authz_host: Add a new "forward-dns" authorization type, not relying on
reverse DNS lookups. [Fabien]
*) mod_ssl: Add hooks to allow other modules to perform processing at
several stages of initialization and connection handling. See
mod_ssl_openssl.h. [Jeff Trawick]
*) mod_http2: disabling PUSH when client sends GOAWAY. Slave connections are
reused for several requests, improved performance and better memory use.
[Stefan Eissing]
*) mod_rewrite: Don't implicitly URL-escape the original query string
when no substitution has changed it (like PR50447 but server context)
[Evgeny Kotkov <evgeny.kotkov visualsvn.com>]
*) mod_http2: fixes problem with wrong lifetime of file buckets on main
connection. [Stefan Eissing]
*) mod_http2: fixes incorrect denial of requests without :authority header.
[Stefan Eissing]
*) mod_reqtimeout: Prevent long response times from triggering a timeout once
the request has been fully read. PR 59045. [Yann Ylavic]
*) ap_expr: expression support for variable HTTP2=on|off. [Stefan Eissing]
*) mod_http2: give control to async mpm for keepalive timeouts only when
no streams are open and even if only after 1 sec delay. Under load, event
mpm discards connections otherwise too quickly. [Stefan Eissing]
*) mod_ssl: Don't lose track of the SSL context if an unlikely failure occurs
in ssl_init_ssl_connection(). [Graham Leggett]
*) mod_rewrite: Add QSL|qslast flag to allow rewrites to files with
literal question marks in their names. PR 58777. [Eric Covener]
*) event: use pre_connection hook to properly initialize connection state for
slave connections. use protocol_switch hook to initialize server config
early based on SNI selected vhost.
[Stefan Eissing]
*) hostname: Test and log useragent_host per-request across various modules,
including the scoreboard, expression and rewrite engines, setenvif,
authz_host, access_compat, custom logging, ssl and REMOTE_HOST variables.
PR55348 [William Rowe]
*) core: Track the useragent_host per-request when mod_remoteip or similar
modules track a per-request useragent_ip. Modules should be updated
to inquire for ap_get_useragent_host() in place of ap_get_remote_host().
[William Rowe]
*) core: fix a bug in <UnDefine ...> directive processing. When used, the last
<Define...>'ed variable was also withdrawn. PR 59019
[Christophe Jaillet]
*) mod_http2: Accept-Encoding is, when present on the initiating request,
added to push promises. This lets compressed content work in pushes.
by the client. [Stefan Eissing]
*) mod_http2: fixed possible read after free when streams were cancelled early
by the client. [Stefan Eissing]
*) mod_http2: fixed possible deadlock during connection shutdown. Thanks to
@FrankStolle for reporting and getting the necessary data.
[Stefan Eissing]
*) mod_http2: fixed apr_uint64_t formatting in a log statement to user proper
APR def, thanks to @Sp1l.
*) mod_http2: number of worker threads allowed to a connection is adjusting
dynamically. Starting with 4, the number is doubled when streams can be
served without block on http/2 connection flow. The number is halfed, when
the server has to wait on client flow control grants.
This can happen with a maximum frequency of 5 times per second.
When a connection occupies too many workers, repeatable requests
(GET/HEAD/OPTIONS) are cancelled and placed back in the queue. Should that
not suffice and a stream is busy longer than the server timeout, the
connection will be aborted with error code ENHANCE_YOUR_CALM.
This does *not* limit the number of streams a client may open, rather the
number of server threads a connection might use.
[Stefan Eissing]
*) mod_http2: allowing link header to specify multiple "rel" values,
space-separated inside a quoted string. Prohibiting push when Link
parameter "nopush" is present.
[Stefan Eissing]
*) mod_http2: reworked connection state handling. Idle connections accept a
GOAWAY from the client without further reply. Otherwise the
module makes a best effort to send one last GOAWAY to the client.
*) mod_http2: the values from standard directives Timeout and KeepAliveTimeout
properly are applied to http/2 connections.
[Stefan Eissing]
*) mod_http2: idle connections are returned to async mpms. new hook
"pre_close_connection" used to send GOAWAY frame when not already done.
Setting event mpm server config "by hand" for the main connection to
the correct negotiated server.
[Stefan Eissing]
*) mod_http2: keep-alive blocking reads are done with 1 second timeouts to
check for MPM stopping. Will announce early GOAWAY and finish processing
open streams, then close.
[Stefan Eissing]
*) mod_http2: bytes read/written on slave connections are reported via the
optional mod_logio functions. Fixes PR 58871.
*) prefork: Initialize the POD when running in ONE_PROCESS (or -X) mode to
avoid a crash. [Jan Kaluza, Yann Ylavic]
*) mod_ssl: When SSLVerify is disabled (NONE), don't force a renegotiation if
the SSLVerifyDepth applied with the default/handshaken vhost differs from
the one applicable with the finally selected vhost. [Yann Ylavic]
*) core: Ensure that httpd exits with an error status when the MPM fails
to run. [Yann Ylavic]
*) mod_ssl: Fix a possible memory leak on restart for custom [EC]DH params.
[Jan Kaluza, Yann Ylavic]
*) mod_ssl: Add SSLOCSPProxyURL to add the possibility to do all queries
to OCSP responders through a HTTP proxy. [Ruediger Pluem]
*) mod_proxy: Play/restore the TLS-SNI on new backend connections which
had to be issued because the remote closed the previous/reusable one
during idle (keep-alive) time. [Yann Ylavic]
*) mod_cache_socache: Fix a possible cached entity body corruption when it
is received from an origin server in multiple batches and forwarded by
mod_proxy. [Yann Ylavic]
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