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-*- coding: utf-8 -*-
Changes with Apache 2.5.1
*) mod_http2: improved early cleanup of streams.
[Stefan Eissing]
*) mod_proxy_fcgi: Don't re-encode SCRIPT_FILENAME when set via SetHandler.
PR 69203. [Yann Ylavic]
*) mod_proxy_http2: improved error handling on connection errors while
response is already underway.
[Stefan Eissing]
*) mod_proxy: Fix canonicalisation and FCGI env (PATH_INFO, SCRIPT_NAME) for
"balancer:" URLs set via SetHandler, also allowing for "unix:" sockets
with BalancerMember(s). PR 69168. [Yann Ylavic]
*) mod_rewrite: Better question mark tracking to avoid UnsafeAllow3F.
PR 69197. [Yann Ylavic, Eric Covener]
*) mod_tls: update version of rustls-ffi to v0.13.0.
[Daniel McCarney (@cpu}]
*) mod_xml2enc: Tolerate libxml2 2.12.0 and later.
[ttachi <tachihara AT hotmail.com>]
*) mod_alias: Add AliasPreservePath directive to map the full
path after the alias in a location. [Graham Leggett]
*) mod_rewrite, mod_proxy: mod_proxy to canonicalize rewritten [P] URLs,
including "unix:" ones. PR 69235, PR 69260. [Yann Ylavic, Ruediger Pluem]
*) mod_http2: fixed a bug that could lead to a crash in main connection
output handling. This occured only when the last request on a HTTP/2
connection had been processed and the session decided to shut down.
This could lead to an attempt to send a final GOAWAY while the previous
write was still in progress. See PR 66646.
[Stefan Eissing]
*) mod_proxy_http2: fix `X-Forward-Host` header to carry the correct value.
Fixed PR66752.
[Stefan Eissing]
*) mod_http2: added support for bootstrapping WebSockets via HTTP/2, as
described in RFC 8441. A new directive 'H2WebSockets on|off' has been
added. The feature is by default not enabled.
As also discussed in the manual, this feature should work for setups
using "ProxyPass backend-url upgrade=websocket" without further changes.
Special server modules for WebSockets will have to be adapted,
most likely, as the handling if IO events is different with HTTP/2.
HTTP/2 WebSockets are supported on platforms with native pipes. This
excludes Windows.
[Stefan Eissing]
*) mod_proxy: Fix DNS requests and connections closed before the
configured addressTTL. BZ 69126. [Yann Ylavic]
*) apxs: Fix -i in some cases where -n is not used.
[Jan Pazdziora <jpazdziora redhat.com>]
*) worker, event: Avoid possible hangs and crashes during shutdown of
child processes that fail to start their configured threads.
[Yann Ylavic, Eric Covener]
*) mod_ssl: Restore support for loading PKCS#11 keys via ENGINE
without "SSLCryptoDevice" configured. [Joe Orton]
*) mod_rewrite: Fix a recent regression where a rule with both a trailing
'?' and the [QSA] flag did not have the query appended. PR66672
Frank Meier <frank.meier ergon.ch>
*) core: On Linux, log the real thread ID in error logs. [Joe Orton]
*) mod_http2: fixed a bug in flushing pending data on an already closed
connection that could lead to a busy loop, preventing the HTTP/2 session
to close down successfully. Fixed PR 66624.
[Stefan Eissing]
*) mod_http2: v2.0.15 with the following fixes and improvements
- New directive 'H2EarlyHint name value' to add headers to a response,
picked up already when a "103 Early Hints" response is sent. 'name' and
'value' must comply to the HTTP field restrictions.
This directive can be repeated several times and header fields of the
same names add. Sending a 'Link' header with 'preload' relation will
also cause a HTTP/2 PUSH if enabled and supported by the client.
- Fixed an issue where requests were not logged and accounted in a timely
fashion when the connection returns to "keepalive" handling, e.g. when
the request served was the last outstanding one.
This led to late appearance in access logs with wrong duration times
reported.
- Accurately report the bytes sent for a request in the '%O' Log format.
This addresses #203, a long outstanding issue where mod_h2 has reported
numbers over-eagerly from internal buffering and not what has actually
been placed on the connection.
The numbers are now the same with and without H2CopyFiles enabled.
[Stefan Eissing]
*) mod_md:
- Using OCSP stapling information to trigger certificate renewals. Proposed
by @frasertweedale.
- Added directive `MDCheckInterval` to control how often the server checks
for detected revocations. Added proposals for configurations in the
README.md chapter "Revocations".
- OCSP stapling: accept OCSP responses without a `nextUpdate` entry which is
allowed in RFC 6960. Treat those as having an update interval of 12 hours.
Added by @frasertweedale.
- Adapt OpenSSL usage to changes in their API. By Yann Ylavic.
*) mod_proxy_http2: fix retry handling to not leak temporary errors.
On detecting that that an existing connection was shutdown by the other
side, a 503 response leaked even though the request was retried on a
fresh connection.
[Stefan Eissing]
*) mod_rewrite: Add server directory to include path as mod_rewrite requires
test_char.h. PR 66571 [Valeria Petrov <[email protected]>]
*) Add an option to specify a source address. PR32524
[Daniel Rench <gauze omnimental tmetic com>]
*) http/1.1: For a chunked response body, ensure the last-chunk
terminator is flushed if necessary. [Joe Orton]
*) mod_rewrite: Don't require [UNC] flag to preserve a leading //
added by applying the perdir prefix to the substitution.
[Ruediger Pluem, Eric Covener]
*) mod_http2: new directive `H2ProxyRequests on|off` to enable handling
of HTTP/2 requests in a forward proxy configuration.
General forward proxying is enabled via `ProxyRequests`. If the
HTTP/2 protocol is also enabled for such a server/host, this new
directive is needed in addition.
[Stefan Eissing]
*) core: add `final_resp_passed` flag to request_rec to allow
ap_die() to judge if it can send out a response. Bump mmn.
Enable test cases that check errors during response body to
appear as error on client side.
[Stefan Eissing]
*) mod_ldap: HTML-escape data in the ldap-status handler.
[Eric Covener, Chamal De Silva]
*) htcacheclean: In -a/-A mode, list all files per subdirectory
rather than only one. PR 65091.
[Artem Egorenkov <aegorenkov.91 gmail.com>]
*) mod_proxy: In case that AllowEncodedSlashes is set to NoDecode do not
fail on literal '%' when doing the encoding of the backend URL.
PR 66580 [Ruediger Pluem]
*) mpm_worker: Fix possible warning (AH00045) about children processes not
terminating timely. [Yann Ylavic]
* mod_proxy_http2: fixed using the wrong "bucket_alloc" from the backend
connection when sending data on the frontend one. This caused crashes
or infinite loops in rare situations.
* mod_proxy_http2: fixed a bug in retry/response handling that could lead
to wrong status codes or HTTP messages send at the end of response bodies
exceeding the announced content-length.
* mod_proxy_http2: fix retry handling to not leak temporary errors.
On detecting that that an existing connection was shutdown by the other
side, a 503 response leaked even though the request was retried on a
fresh connection.
* mod_http2: fixed a bug that did cleanup of consumed and pending buckets in
the wrong order when a bucket_beam was destroyed.
[Stefan Eissing]
*) mod_ssl: Add support for loading certs/keys from pkcs11: URIs
via OpenSSL 3.x providers. [Ingo Franzki <ifranzki linux.ibm.com>]
*) mod_proxy: Allow to set a TTL for how long DNS resolutions to backend
systems are cached. [Yann Ylavic]
*) mod_http2: v2.0.26 with the following fixes:
- Fixed `Date` header on requests upgraded from HTTP/1.1 (h2c). Fixes
<https://github.com/icing/mod_h2/issues/272>.
- Fixed small memory leak in h2 header bucket free. Thanks to
Michael Kaufmann for finding this and providing the fix.
*) mod_ssl: Restore SSL dumping on trace7 loglevel with OpenSSL >= 3.0.
[Ruediger Pluem, Yann Ylavic]
*) mod_http2: avoid double chunked-encoding on internal redirects.
PR 66597 [Yann Ylavic, Stefan Eissing]
*) mod_cgi/mod_cgid: Reject CGI output with a Transfer-Encoding
header to avoid unexpected or corrupted responses. PR 68970.
[Joe Orton]
*) Windows: Restore the ability to "Include" configuration files on UNC
paths. PR69313 [Eric Covener]
*) mod_http2: Fix reporting of `Total Accesses` in server-status to not count
HTTP/2 requests twice. Fixes PR 66801.
[Stefan Eissing]
*) mod_slotmem_shm: Use ap_os_is_path_absolute() to make it portable.
[Jean-Frederic Clere]
*) Optimise handling LDAP authorization where LDAP was not used
previously for LDAP authentication. [Yann Ylavic]
*) mod_macro: Return an error if the expanded line would exceed the
maximum line length. PR 69258.
[Marc Stern <marc.stern approach-cyber.com>]
* mod_http2: fixed a bug in handling of stream timeouts.
[Stefan Eissing]
*) mod_systemd: Log the SELinux context at startup if available and
enabled. [Joe Orton]
*) mod_proxy: Avoid AH01059 parsing error for SetHandler "unix:" URLs.
PR 69160 [Yann Ylavic]
*) mod_dav_fs: Add DavLockDBType directive. [Joe Orton]
*) mod_ssl: Disable the OpenSSL ENGINE API when OPENSSL_NO_ENGINE is set.
Allow for "SSLCryptoDevice builtin" if the ENGINE API is not available,
notably with OpenSSL >= 3. PR 68080. [Yann Ylavic, Joe Orton]
*) mod_headers: Fix a possible infinite recursion with the edit* action and
empty matches. [Yann Ylavic]
*) mod_tls: updating to rustls-ffi version 0.9.2 or higher.
Checking in configure for proper version installed. Code
fixes for changed clienthello member name.
[Stefan Eissing]
* mod_md:
- New directive `MDMatchNames all|servernames` to allow more control over how
MDomains are matched to VirtualHosts.
- New directive `MDChallengeDns01Version`. Setting this to `2` will provide
the command also with the challenge value on `teardown` invocation. In version
1, the default, only the `setup` invocation gets this parameter.
Refs #312. Thanks to @domrim for the idea.
- For Managed Domain in "manual" mode, the checks if all used ServerName and
ServerAlias are part of the MDomain now reports a warning instead of an error
(AH10040) when not all names are present.
- MDChallengeDns01 can now be configured for individual domains.
Using PR from Jérôme Billiras (@bilhackmac) and adding test case and fixing proper working
- Fixed a bug found by Jérôme Billiras (@bilhackmac) that caused the challenge
teardown not being invoked as it should.
*) mod_ssl: Fix a regression that causes the default DH parameters for a key
no longer set and thus effectively disabling DH ciphers when no explicit
DH parameters are set. PR 68863 [Ruediger Pluem]
*) mod_dav: Update redirect-carefully example BrowserMatch config
to match more recent client versions. PR 66148, 67039.
[Michal Maloszewski <michal.maloszewski canonical.com>,
Romain Tartière <romain blogreen.org>]
*) mod_proxy: Avoid AH01059 parsing error for SetHandler "unix:" URLs
in <Location> (incomplete fix in 2.4.62). PR 69160. [Yann Ylavic]
*) mod_ssl: Add SSL_HANDSHAKE_RTT environment variable.
[Charles Smutz <csmutz gmail.com>]
*) mod_md: fixed passing of the server environment variables to programs
started via MDMessageCmd and MDChallengeDns01 on *nix system.
See <https://github.com/icing/mod_md/issues/319>.
[Stefan Eissing]
*) mod_proxy: Honor parameters of ProxyPassMatch workers with substitution
in the host name or port. PR 69233. [Yann Ylavic]
*) mod_md: Fix the reported "until" validity of a certificate in the status
handler. [Rainer Jung]
*) mod_md: Fix possible NULL deref when logging the error that an
authentication resource could not be retrieved from the ACME server.
[Stefan Eissing]
*) mod_ssl: Improve compatibility with OpenSSL 3, fix build warnings about
deprecated ENGINE_ API, honor OPENSSL_API_COMPAT setting while defaulting
to compatibitily with version 1.1.1 (including ENGINEs / SSLCryptoDevice).
[Yann Ylavic]
*) core: Add "multipathtcp" Listen option. PR 69292.
[Anthony Doeraene <anthony.doeraene hotmail.com>]
*) mod_proxy: Add "multipathtcp" worker parameter. PR 69292.
[Anthony Doeraene <anthony.doeraene hotmail.com>]
*) mod_authnz_ldap.c: Make sure the authentication variables are set in
all cases where another module is the source of the authentication,
and that authenticated user is looked up in LDAP. [Graham Leggett]
*) mod_autht_jwt: New module to handle RFC 7519 JWT tokens within
bearer tokens, both as part of the aaa framework, and as a way to
generate tokens and pass them to backend servers and services.
[Graham Leggett]
*) mod_auth_bearer: New module to handle RFC 6750 Bearer tokens, using
the token_checker hook. [Graham Leggett]
*) mod_autht_core: New module to handle provider aliases for token
authentication. [Graham Leggett]
*) core: Add the token_checker hook, that allows authentication to take
place using mechanisms other than username/password, such as bearer
tokens. [Graham Leggett]
*) mod_alias: When an alias is declared inside a Location, make sure
the balance of the URL is preserved to match the alias declared
outside a location. Fixes an error where all requests are mapped
to the root of the location. [Graham Leggett]
*) core: Be explicit if an enclosing directive contains a path or a
regex. [Graham Leggett]
*) mod_http2: fixed a crash during connection termination. See PR 66539.
[Stefan Eissing]
*) mod_mime: Do not match the extention against possible query string
parameters in case ProxyPass was used with the nocanon option.
[Ruediger Pluem]
*) mod_proxy: In case that AllowEncodedSlashes is set to NoDecode do not
double encode encoded slashes in the URL sent by the reverse proxy to the
backend. [Ruediger Pluem]
*) mod_rewrite: Add BCTLS flag similar to B, but only escaping the characters
checked by 2.4.56 in the query string. [Eric Covener]
*) mod_md:
- Enabling ED25519 support and certificate transparency information when
building with libressl v3.5.0 and newer. Thanks to Giovanni Bechis.
- MDChallengeDns01 can now be configured for individual domains.
Thanks to Jérôme Billiras (@bilhackmac) for the initial PR.
- Fixed a bug found by Jérôme Billiras (@bilhackmac) that caused the challenge
teardown not being invoked as it should.
[Stefan Eissing]
*) core: Add formats %{z} and %{strftime-format} to ErrorLogFormat, and make
sure that if the format is configured early enough it applies to every log
line. PR 62161. [Yann Ylavic]
*) mod_proxy: Check before forwarding that a nocanon path has not been
rewritten with spaces during processing. [Yann Ylavic]
*) mod_rewrite: Re-allow some proxy and redirect substitutions flagged as
403 errors in 2.4.56. [Eric Covener]
*) mod_rewrite: Fix a 2.4.56 regression for substitutions ending
in a question mark. [Eric Covener]
*) Add a SSL_SHARED_CIPHER environment variable with the list of
client/server permitted ciphers. [Dirk-Willem van Gulik]
*) mod_http2: field values (headers and trailers) are stripped of
leading/trailing whitespace (space +htab) before being processed
or send in a response. This is compatible behaviour to HTTP/1.1
parsers that strip incoming headers of such characters.
[Stefan Eissing]
*) build: Use 'command -v' instead of 'which' which is more portable.
PR 66130 [Sam James <[email protected]>]
*) mod_dav: Allow to disable lock discovery via an DAVLockDiscovery
expression (per-request). PR 66313. [Emmanuel Dreyfus <manu netbsd.org>]
*) mod_ssl: when a proxy connection had handled a request using SSL, an
error was logged when "SSLProxyEngine" was only configured in the
location/proxy section and not the overall server. The connection
continued to work, the error log was in error. Fixed PR66190.
[Stefan Eissing]
*) mod_proxy: Ignore (and warn about) enablereuse=on for ProxyPassMatch when
some dollar substitution (backreference) happens in the hostname or port
part of the URL. [Yann Ylavic]
*) rotatelogs: Add -T flag to allow subsequent rotated logfiles to be
truncated without the initial logfile being truncated. [Eric Covener]
*) mod_md: a new directive `MDStoreLocks` can be used on cluster
setups with a shared file system for `MDStoreDir` to order
activation of renewed certificates when several cluster nodes are
restarted at the same time. Store locks are not enabled by default.
Restored curl_easy cleanup behaviour from v2.4.14 and refactored
the use of curl_multi for OCSP requests to work with that.
Fixes <https://github.com/icing/mod_md/issues/293>.
*) mod_proxy_ajp: Report an error if the AJP backend sends an invalid number
of headers. [Ruediger Pluem]
*) mod_proxy_http2: apply the standard httpd content type handling
to responses from the backend, as other proxy modules do. Fixes PR 66391.
Thanks to Jérôme Billiras for providing the patch.
[Stefan Eissing]
*) mod_http2: fixed trailer handling. Empty response bodies
prevented trailers from being sent to a client. See
<https://github.com/icing/mod_h2/issues/233> for how
this affected gRPC use.
[Stefan Eissing]
*) mod_proxy_http2: use only the ':authority' header to forward 'Host'
information to a backend. Deduce ':authority' from what the client
sent when 'ProxyPreserveHost' is on.
[Stefan Eissing]
*) core: Improve the AH00124 error message about too many redirects by logging
the URI of the request. PR 66403 [Ruediger Pluem]
*) mod_proxy_uwsgi: Stricter backend HTTP response parsing/validation.
[Yann Ylavic]
*) mod_http2: new directive 'H2MaxDataFrameLen n' to limit the maximum
amount of response body bytes put into a single HTTP/2 DATA frame.
Setting this to 0 places no limit (but the max size allowed by the
protocol is observed).
The module, by default, tries to use the maximum size possible, which is
somewhat around 16KB. This sets the maximum. When less response data is
available, smaller frames will be sent.
*) mod_http2: client resets of HTTP/2 streams led to unwanted 500 errors
reported in access logs and error documents. The processing of the
reset was correct, only unneccesary reporting was caused.
[Stefan Eissing]
*) mod_proxy: Fix double encoding of the uri-path of the request forwarded
to the origin server, when using mapping=encoded|servlet. [Yann Ylavic]
*) mod_dav: Open the lock database read-only when possible.
PR 36636 [Wilson Felipe <wfelipe gmail.com>, manu]
*) mod_ldap: LDAPConnectionPoolTTL should accept negative values in order to
allow connections of any age to be reused. Up to now, a negative value
was handled as an error when parsing the configuration file. PR 66421.
[nailyk <bzapache nailyk.fr>, Christophe Jaillet]
*) mod_proxy_hcheck: Re-enable workers in standard ERROR state. PR 66302.
[Alessandro Cavaliere <alessandro.cavalier7 unibo.it>]
*) mod_proxy_hcheck: Detect AJP/CPING support correctly. PR 66300.
[Alessandro Cavaliere <alessandro.cavalier7 unibo.it>]
*) mod_proxy_hcheck: hcmethod now allows for HTTP/1.1 requests
using GET11, HEAD11 and/or OPTIONS11. [Jim Jagielski]
*) mod_md: a bug was fixed that caused very large MDomains
with the combined DNS names exceeding ~7k to fail, as
request bodies would contain partially wrong data from
uninitialized memory. This would have appeared as failure
in signing-up/renewing such configurations.
[Stefan Eissing, Ronald Crane (Zippenhop LLC)]
*) mod_proxy_http: Avoid 417 responses for non forwardable 100-continue.
PR 65666. [Yann Ylavic]
*) mod_ssl: SSLFIPS compatible with OpenSSL 3.0. PR 66063.
[Petr Sumbera <petr.sumbera oracle.com>, Yann Ylavic]
*) core: the conf/mime.types has been updated in conformance with RFC 9239:
- .js moved from 'application/javascript' to 'text/javascript'
- .mjs was added as 'text/javascript'
[Mathias Bynens <@mathiasbynens> via PR 318]
*) mod_md: the `MDCertificateAuthority` directive can take more than one URL/name of
an ACME CA. This gives a failover for renewals when several consecutive attempts
to get a certificate failed.
A new directive was added: `MDRetryDelay` sets the delay of retries.
A new directive was added: `MDRetryFailover` sets the number of errored
attempts before an alternate CA is selected for certificate renewals.
[Stefan Eissing]
*) mod_heartmonitor: Set the documented default value
"10" for HeartbeatMaxServers instead of "0". With "0"
no shared memory slotmem was initialized. [Rainer Jung]
*) mod_md: fixed a bug leading to failed transfers for OCSP
stapling information when more than 6 certificates needed
updates in the same run. [Stefan Eissing]
*) mod_http2: use the new REQUEST buckets to forward request
on secondary connections. Use the now generic
ap_process_connection() in h2 workers to process those.
[Stefan Eissing]
*) Implement full auto status ("key: value" type status output).
Especially not only status summary counts for certificates and
OCSP stapling but also lists. Auto status format is similar to
what was used for mod_proxy_balancer.
[Rainer Jung]
*) core/mod_http: use REQUEST meta buckets and a new HTTP/1.x specific
input filter to separate the handling for HTTP requests from the
handling of HTTP/1.x request parsing and checks.
A new HTTP1_REQUEST_IN filter installs itself on http/1.1 connections
before a request is being read. It generates either a REQUEST meta
bucket on success or an ERROR bucket with the proposed response status.
The core connection processing, relying on ap_read_request(), now expects
a REQUEST or ERROR bucket from the input filters and is agnostic to
specific HTTP versions and how they bring requests into the server.
[Stefan Eissing]
*) mod_http2: remove unused and insecure code. Fixes PR66037.
Thanks to Ronald Crane (Zippenhop LLC) for reporting this.
[Stefan Eissing]
*) mod_md: added support for managing certificates via a
local tailscale demon for users of that secure networking.
This gives trusted certificates for tailscale assigned
domain names in the *.ts.net space.
[Stefan Eissing]
*) mod_md: a possible NULL pointer deref was fixed in
the JSON code for persisting time periods (start+end).
Fixes #282 on mod_md's github.
Thanks to @marcstern for finding this.
*) core: Avoid an overflow on large inputs in ap_is_matchexp. PR 66033
[Ruediger Pluem]
*) core/mod_http: use RESPONSE meta buckets and a new HTTP/1.x specific
filter to send responses through the output filter chain.
Specifically: the HTTP_HEADER output filter and ap_send_interim_response()
create a RESPONSE bucket and no longer are concerned with HTTP/1.x
serialization.
A new HTTP1_RESPONSE_OUT transcode filter writes the proper HTTP/1.x
bytes when dealing with a RESPONSE bucket. That filter installs itself
on the pre_read_request hook when the connection has protocol 'http/1.1'.
[Stefan Eissing]
*) MPM event: Restart children processes killed before idle maintenance.
PR 65769. [Yann Ylavic, Ruediger Pluem]
*) core: Disable TCP_NOPUSH optimization on OSX since it might introduce
transmission delays. PR 66019. [Yann Ylavic]
*) ab: Allow for TLSv1.3 when the SSL library supports it.
[abhilash1232 gmail.com, xiaolongx.jiang intel.com, Yann Ylavic]
*) ab: Add the -W option to use worker threads, allowing for multiple CPUs
to handle the load. [Yann Ylavic]
*) mod_substitute: Fix an integer overflow that can happen in very special
setups. PR 66034 [Ruediger Pluem]
*) core: make ap_escape_quotes() work correctly on strings
with more than MAX_INT/2 characters, counting quotes double.
Credit to <[email protected]> for finding this.
[Stefan Eissing]
*) core: adding a new hook and method to the API:
create_secondary_connection and ap_create_secondary_connection()
to setup connections related to a "master" one, as used in
the HTTP/2 protocol implementation.
*) mod_http2: using the new API calls to get rid of knowledge
about how the core handles conn_rec specifics.
Improvements in pollset stream handling to use less sets.
Using atomic read/writes instead of volatiles now.
Keeping a reserve of "transit" pools and bucket_allocs for
use on secondary connections to avoid repeated setup/teardowns.
*) mod_proxy: Set a status code of 502 in case the backend just closed the
connection in reply to our forwarded request. [Ruediger Pluem]
*) MPM event: Fix accounting of active/total processes on ungraceful restart,
PR 66004 (follow up to PR 65626 from 2.4.52). [Yann Ylavic]
*) mod_proxy: Add backend port to log messages to
ease identification of involved service. [Rainer Jung]
*) mod_systemd: Systemd socket activation can now be enabled at
build time but disabled at run time, if mod_systemd is not
loaded. [Lubos Uhliarik <luhliari redhat.com>]
*) ab: Add an optional ramp delay when starting concurrent connections so
as to not trigger denial of service protection in the network. Report
levels of concurrency achieved in cases where the test completes before
full concurrency is achieved. [Graham Leggett]
*) mod_http2: preserve the port number given in a HTTP/1.1
request that was Upgraded to HTTP/2. Fixes PR65881.
[Stefan Eissing]
*) mod_http2: :scheme pseudo-header values, not matching the
connection scheme, are forwarded via absolute uris to the
http protocol processing to preserve semantics of the request.
Checks on combinations of pseudo-headers values/absence
have been added as described in RFC 7540.
Fixes <https://github.com/icing/mod_h2/issues/230>.
[Stefan Eissing]
*) core/mpm: add hook 'child_stopped` that gets called when the MPM has
stopped all processing in a child process. This is when all running
threads shall be stopped and joined.
[Stefan Eissing]
*) core: Make sure and check that LimitXMLRequestBody fits in system memory.
[Ruediger Pluem, Yann Ylavic]
*) ab: Fix the detection for when the server performed a legitimate
connection close as per RFC7230 6.3.1. We must check whedther the
connection was previously kept alive, and not whether the current
closed request is keepalive. [Graham Leggett]
*) mod_rewrite: Make URI-to-filename rewrites work transparently with
proxy early mappings (mapping=servlet/decoded). [Yann Ylavic]
*) mod_md: do not interfere with requests to /.well-known/acme-challenge/
resources if challenge type 'http-01' is not configured for a domain.
Fixes <https://github.com/icing/mod_md/issues/279>.
[Stefan Eissing]
*) mod_proxy: Bump limit of proxy workers names to 384 characters. PR 53218
[Yann Ylavic]
*) core: Simpler connection close logic if discarding the request body fails.
[Yann Ylavic, Ruediger Pluem]
*) mod_proxy: Use the maxium of front end and backend timeouts instead of the
minimum when tunneling requests (websockets, CONNECT requests).
Backend timeouts can be configured more selectively (per worker if needed)
as front end timeouts and typically the backend timeouts reflect the
application requirements better. PR 65886 [Ruediger Pluem]
*) mod_watchdog: use the `child_stopping` and `child_stopped` hooks
to shutdown workers before pool destruction releases global
resources and libraries.
[Stefan Eissing]
*) ab: Respond appropriately to SSL_ERROR_WANT_READ and SSL_ERROR_WANT_WRITE.
Previously the correct event was polled for, but the response to the poll
would call write instead of read, and read instead of write. PR 55952
[Graham Leggett]
*) mod_md: the status description in MDomain's JSON, exposed in the
md-status handler (if configure) did sometimes not carry the correct
message when certificates needed renew.
[Stefan Eissing]
*) mod_tls: Fix a linkage issue with rustls when compiled
with rust 1.55, 1.56 or 1.57. This prevents the loading
of the module because of an undefined symbol: fmaf
See https://github.com/rustls/rustls-ffi/issues/133
[Christophe Jaillet]
*) ap_regex: Use Thread Local Storage (TLS) to recycle ap_regexec() buffers
when an efficient TLS implementation is available. [Yann Ylavic]
*) mod_reqtimeout: Fix missing handshake= timeout enforcement. [Yann Ylavic]
*) mod_dav: Fix regression when gathering properties which could lead to huge
memory consumption proportional to the number of resources.
[Evgeny Kotkov, Ruediger Pluem]
*) mod_unixd: CoreDumpDirectory requires enabling tracing on FreeBSD 11+.
PR 65819. [David CARLIER <devnexen gmail.com>]
*) mpm_event: Fix a possible listener deadlock on heavy load when restarting
and/or reaching MaxConnectionsPerChild. PR 65769. [Yann Ylavic]
*) http: Enforce that fully qualified uri-paths not to be forward-proxied
have an http(s) scheme, and that the ones to be forward proxied have a
hostname, per HTTP specifications. [Ruediger Pluem, Yann Ylavic]
*) mod_http2: fixed a bug in v2.0.0 that could lead to an infinite
loop when clients close connections prematurely.
Enhanced the scoreboard status updates on h2 connections for
mod_status. 'server-status' now gives a better idea what the
connection is working on.
[Stefan Eissing]
*) mod_http: Correctly sent a 100 Continue status code when sending an interim
response as result of an Expect: 100-Continue in the request and not the
current status code of the request. PR 65725 [Ruediger Pluem]
*) mod_proxy_connect: Honor the smallest of the backend or client timeout
while tunneling. [Yann Ylavic]
*) mod_http2: a regression in v1.15.24 of the modules was fixed that
could lead to httpd child processes not being terminated on a
graceful reload or when reaching MaxConnectionsPerChild.
When unprocessed h2 requests were queued at the time, these could stall.
See <https://github.com/icing/mod_h2/issues/212>.
[@hansborr, @famzah, Stefan Eissing]
*) mod_proxy_uwsgi: Remove duplicate slashes at the beginning of PATH_INFO.
PR 65616. [Ruediger Pluem]
*) mod_md: Fix memory leak in case of failures to load the private key.
PR 65620 [ Filipe Casal <[email protected]> ]
* mod_http2: the new pollset implementation is disabled when
compiling with an APR version less than 1.6.
*) mod_autoindex: Add "IndexForbiddenReturn404" to return 404 instead of a
403 when Options does not included "indexes". [Eric Covener]
*) mod_dir: Add "NotFound" option to "DirectorySlash" directive to return
404 instead of a DirectorySlash redirect. [Eric Covener]
*) mod_md: adding v2.4.8 with the following changes
- Added support for ACME External Account Binding (EAB).
Use the new directive `MDExternalAccountBinding` to provide the
server with the value for key identifier and hmac as provided by
your CA.
While working on some servers, EAB handling is not uniform
across CAs. First tests with a Sectigo Certificate Manager in
demo mode are successful. But ZeroSSL, for example, seems to
regard EAB values as a one-time-use-only thing, which makes them
fail if you create a seconde account or retry the creation of the
first account with the same EAB.
- The directive 'MDCertificateAuthority' now checks if its parameter
is a http/https url or one of a set of known names. Those are
'LetsEncrypt', 'LetsEncrypt-Test', 'Buypass' and 'Buypass-Test'
for now and they are not case-sensitive.
The default of LetsEncrypt is unchanged.
- `MDContactEmail` can now be specified inside a `<MDomain dnsname>`
section.
- Treating 401 HTTP status codes for orders like 403, since some ACME
servers seem to prefer that for accessing oders from other accounts.
- When retrieving certificate chains, try to read the repsonse even
if the HTTP Content-Type is unrecognized.
- Fixed a bug that reset the error counter of a certificate renewal
and prevented the increasing delays in further attempts.
- Fixed the renewal process giving up every time on an already existing
order with some invalid domains. Now, if such are seen in a previous
order, a new order is created for a clean start over again.
See <https://github.com/icing/mod_md/issues/268>
- Fixed a mixup in md-status handler when static certificate files
and renewal was configured at the same time.
*) mod_http2:
- Fixed an issue since 1.15.24 that "Server" headers in proxied requests
were overwritten instead of preserved. [PR by @daum3ns]
- Added directove 'H2StreamTimeout' to configure a separate value for HTTP/2
streams, overriding server's 'Timeout' configuration. [rpluem]
- HTTP/2 connections now use pollsets to monitor the status of the
ongoing streams and their main connection when host OS allows this.
- Removed work-arounds for older versions of libnghttp2 and checking
during configure that at least version 1.15.0 is present.
- The HTTP/2 connection state handler, based on an experiment and draft
at the IETF http working group (abandoned for some time), has been removed.
- H2SerializeHeaders no longer has an effect. A warning is logged when it is
set to "on". The switch enabled the internal writing of requests to be parsed
by the internal HTTP/1.1 protocol handler and was introduced to avoid
potential incompatibilities during the introduction of HTTP/2.
- Removed the abort/redo of tasks when mood swings lower the active limit.
[Ruediger Pluem, daum3ns, Stefan Eissing]
*) core: Be safe with ap_lingering_close() called with a socket NULL-ed by
a third-party module. PR 65627.
[acmondor <bz.apache.org acmondor.ca>, Yann Ylavic]
*) mpm_event: Restart stopping of idle children after a load peak. PR 65626.
[Yann Ylavic, Ruediger Pluem]
*) mod_proxy: SetEnv proxy-nohalfclose (or alike) allows to disable TCP
half-close forwarding when tunneling protocols. [Yann Ylavic]
*) mod_tls: added mod_tls from abetterinternet, donated
by ISRG/Prossimo <https://github.com/abetterinternet/mod_tls>.
- adds font-/backend TLS (v1.2/v1.3) via the Rust rustls crate
and its rustls-ffi C binding <https://github.com/rustls/rustls-ffi>.
- documentation at <https://github.com/abetterinternet/mod_tls>
(adding to Apache's manual TBD)
- build support for Apache httpd configure on *nix platforms,
rustls is linked statically into mod_tls.
*) mod_md: values for External Account Binding (EAB) can
now also be configured to be read from a separate JSON
file. This allows to keep server configuration permissions
world readable without exposing secrets.
[Stefan Eissing]
*) core: Add ap_unescape_url_ex() for better decoding control, and deprecate
unused AP_NORMALIZE_DROP_PARAMETERS flag.
[Yann Ylavic, Ruediger Pluem, Stefan Eissing, Joe Orton]
*) core: AP_NORMALIZE_DECODE_UNRESERVED should normalize the second dot in
the uri-path when it's preceded by a dot. [Yann Ylavic]
*) mod_proxy: New tunnel_forward hooking mechanism allowing modules to handle
Upgrade(d) protocols data. [Yann Ylavic]
*) mod_dav: Correctly handle errors returned by dav providers on REPORT
requests. [Ruediger Pluem]
*) mod_rewrite: Fix UDS ("unix:") scheme for [P] rules. PR 57691 + 65590.
[Janne Peltonen <janne.peltonen sange.fi>]
*) mod_proxy: Handle UDS URIs with empty hostname ("unix:///...") as if they
had no hostname ("unix:/..."). [Yann Ylavic]
*) event mpm: Correctly count active child processes in parent process if
child process dies due to MaxConnectionsPerChild.
PR 65592 [Ruediger Pluem]
*) core: Add ap_pre_connection() as a wrapper to ap_run_pre_connection()
and use it to prevent that failures in running the pre_connection
hook cause crashes afterwards. [Ruediger Pluem]
*) mod_md: fixed a bug in handling multiple parallel OCSP requests. These could
run into an assertion which terminated (and restarted) the child process where
the task was running. Eventually, all OCSP responses were collected, but not
in the way that things are supposed to work.
See also <https://bz.apache.org/bugzilla/show_bug.cgi?id=65567>.
The bug was possibly triggered when more than one OCSP status needed updating
at the same time. For example for several renewed certificates after a server
reload.
*) mod_md: when MDMessageCmd for a 'challenge-setup:<type>:<dnsname>'
fails (!= 0 exit), the renewal process is aborted and an error is
reported for the MDomain. This provides scripts that distribute
information in a cluster to abort early with bothering an ACME
server to validate a dns name that will not work. The common
retry logic will make another attempt in the future, as with
other failures.
Fixed a bug when adding private key specs to an already working
MDomain, see <https://github.com/icing/mod_md/issues/260>.
[Stefan Eissing]
*) core: Add ap_create_connection() to create either a server or client/proxy
connection.
*) mod_http2: when a server is restarted gracefully, any idle h2 worker
threads are shut down immediately. [Stefan Eissing]
*) core: Initialize the request fields on read failure to avoid NULLs.
[Yann Ylavic]
*) mod_proxy: Do not canonicalize the proxied URL when both "nocanon" and
"ProxyPassInterpolateEnv On" are configured. PR 65549.
[Joel Self <joelself gmail.com>]
*) mpm_event: Fix children processes possibly not stopped on graceful
restart. PR 63169. [Joel Self <joelself gmail.com>]
*) mod_unique_id: Reduce the time window where duplicates may be generated
PR 65159
[Christophe Jaillet]
*) Revert "mod_unique_id: Fix potential duplicated ID generation under heavy load.
PR 65159" added in 2.4.47.
This causes issue on Windows.
[Christophe Jaillet]
*) mod_proxy_uwsgi: Fix PATH_INFO setting for generic worker. [Yann Ylavic]
*) mod_md: Certificate/keys pairs are verified as matching before a renewal is accepted
as successful or a staged renewal is replacing the existing certificates.
This avoid potential mess ups in the md store file system to render the active
certificates non-working. [@mkauf]
*) mod_proxy: Fix a potential infinite loop when tunneling Upgrade(d)
protocols from mod_proxy_http, and a timeout triggering falsely when
using mod_proxy_wstunnel, mod_proxy_connect or mod_proxy_http with
upgrade= setting. PRs 65521 and 65519. [Yann Ylavic]
*) mod_proxy: Faster unix socket path parsing in the "proxy:" URL.
[Yann Ylavic]
*) mpm_event: Fix graceful stop/restart of children processes if connections
are in lingering close for too long. [Yann Ylavic]
*) mod_md: fixed a potential null pointer dereference if ACME/OCSP
server returned 2xx responses without content type. Reported by chuangwen.
[chuangwen, Stefan Eissing]
* core/mpm: add hook 'child_stopping` that gets called when the MPM is
stopping a child process. The additional `graceful` parameter allows
registered hooks to free resources early during a graceful shutdown.
[Yann Ylavic, Stefan Eissing]
*) mod_proxy: Fix icomplete initialization of BalancerMember(s) from the
balancer-manager, which can lead to a crash. [Yann Ylavic]
*) mod_http2:
- Aborting requests via RST_STREAM no longer affect the available
resources of a connection when the first chunk of the response
body has been sent.
- H2Min/MaxWorkers behave as intended again. The module will initially
create H2MinWorkers threads and add up to H2MaxWorkers when needed. These
additional workers time out when idle after H2MaxWorkerIdleSeconds and
disappear again.
- Added a timeout to h2 worker cleanup to exit latest after 5 seconds of
waiting on idle workers to terminate. This happens after all connections
have been processed. a WARNING is logged in case workers lagged behind.
- When the shutdown of a child is detected (e.g. graceful shutdown), the
module will terminate all idle workers above H2MinWorkers right away.
This detection currently only happens when a HTTP/2 connection is active.
[Stefan Eissing]
*) mod_md:
- Domain names in `<MDomain ...>` can now appear in quoted form.
- Fixed a failure in ACME challenge selection that aborted further searches
when the tls-alpn-01 method did not seem to be suitable.
- Changed the tls-alpn-01 setup to only become unsuitable when none of the
dns names showed support for a configured 'Protocols ... acme-tls/1'. This
allows use of tls-alpn-01 for dns names that are not mapped to a VirtualHost.
[Stefan Eissing]
*) core/mod_proxy/mod_ssl:
Adding `outgoing` flag to conn_rec, indicating a connection is
initiated by the server to somewhere, in contrast to incoming
connections from clients.
Adding 'ap_ssl_bind_outgoing()` function that marks a connection
as outgoing and is used by mod_proxy instead of the previous
optional function `ssl_engine_set`. This enables other SSL
module to secure proxy connections.
The optional functions `ssl_engine_set`, `ssl_engine_disable` and
`ssl_proxy_enable` are now provided by the core to have backward
compatibility with non-httpd modules that might use them. mod_ssl
itself no longer registers these functions, but keeps them in its
header for backward compatibility.
The core provided optional function wrap any registered function
like it was done for `ssl_is_ssl`.
[Stefan Eissing]
*) mod_h2: Don't strip headers from 304 responses. [Yann Ylavic]
*) mod_proxy: Fix possible reuse/merging of Proxy(Pass)Match worker instances
with others when their URLs contain a '$' substitution. PR 65419.
[Yann Ylavic]
*) mpm_prefork: Block signals for child_init hooks to prevent potential
threads created from there to catch MPM's signals.
[Ruediger Pluem, Yann Ylavic]
*) mod_ssl: tighten the handling of ALPN for outgoing (proxy)
connections. If ALPN protocols are provided and sent to the
remote server, the received protocol selected is inspected
and checked for a match. Without match, the peer handshake
fails.
An exception is the proposal of "http/1.1" where it is
accepted if the remote server did not answer ALPN with
a selected protocol. This accomodates for hosts that do
not observe/support ALPN and speak http/1.x be default.
* mod_log_config/mod_ssl: moved the log_handlers registered by mod_ssl
into mod_log_config itself. These now use the global `ap_ssl_var_lookup()`
functions and work for all running SSL modules.
The dependency from mod_ssl to mod_log_config and its header is removed.
mod_ssl now provides the content of "{errstr}c" as variable "SSL_CLIENT_VERIFY_ERRSTR".
This change should be fully compatible to all deployed configurations.
[Stefan Eissing]
*) dbm: Split the loading of a dbm driver from the opening of a dbm file. When
an attempt to load a dbm driver fails, log clearly which driver triggered
the error (not "default"), and what the error was. [Graham Leggett]
*) core: Fix a regression that stripped the ETag header from 304 responses.
PR 61820 [Ruediger Pluem, Roy T. Fielding]
*) core/mod_ssl/mod_md: adding OCSP response provisioning as core feature. This
allows modules to access and provide OCSP response data without being tied
of each other. The data is exchanged in standard, portable formats (PEM encoded
certificates and DER encoded responses), so that the actual SSL/crypto
implementations used by the modules are independant of each other.
Registration and retrieval happen in the context of a server (server_rec)
which modules may use to decide if they are configured for this or not.
The area of changes:
1. core: defines 2 functions in include/http_ssl.h, so that modules may
register a certificate, together with its issuer certificate for OCSP
response provisioning and ask for current response data (DER bytes) later.
Also, 2 hooks are defined that allow modules to implement this OCSP
provisioning.
2. mod_ssl uses the new functions, in addition to what it did already, to
register its certificates this way. If no one is interested in providing
OCSP, it falls back to its own (if configured) stapling implementation.
3. mod_md registers itself at the core hooks for OCSP provisioning. Depending
on configuration, it will accept registrations of its own certificates only,
all certificates or none.
[Stefan Eissing]
*) mod_proxy_wstunnel: Add ProxyWebsocketFallbackToProxyHttp to opt-out the
fallback to mod_proxy_http for WebSocket upgrade and tunneling.
[Yann Ylavic]
*) mod_proxy_hcheck: Honor worker timeout settings. [Yann Ylavic]
*) mod_lua: Add support to Lua 5.4 [Joe Orton, Giovanni Bechis, Ruediger Pluem]
*) mod_md: Tolerate a missing "revokeCert" or "keyChange" resource.
[Fraser Tweedale <ftweedal redhat.com>]
*) mod_ssl: Add SSL_{CLIENT,SERVER}_B64CERT variables with
base64-encoded DER certificates. Add SSL_CLIENT_B64CERT_CHAIN_n
equivalents for SSL_CLIENT_CERT_CHAIN_n, and new
"ExportBase64CertData" argument for SSLOptions. PR 65169.
[Joe Orton]
*) mod_proxy_balancer: Include nonce in XML output. PR 63074.
Federico Mennite <federico.mennite lifeware.ch>
*) mod_http2: Fixed a race condition that could lead to streams being
aborted (RST to the client), although a response had been produced.
[Stefan Eissing]
*) mod_unique_id: Fix potential duplicated ID generation under heavy load.
PR 65159
[Jonas Müntener <jonas.muentener ergon.ch>, Christophe Jaillet]
*) core: provide ap_ssl_* functions in new http_ssl.h header file.