1 APACHE 2.4 STATUS: -*- mode: text; coding: utf-8 -*-
2 Last modified at [$Date$]
4 The current version of this file can be found at:
6 * http://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x/STATUS
8 The current development branch of this software can be found at:
10 * http://svn.apache.org/repos/asf/httpd/httpd/trunk
12 Consult the following STATUS files for information on related projects:
14 * http://svn.apache.org/repos/asf/apr/apr/trunk/STATUS
15 * http://svn.apache.org/repos/asf/apr/apr/branches/1.4.x/STATUS
16 * http://svn.apache.org/repos/asf/apr/apr-util/branches/1.4.x/STATUS
17 * http://svn.apache.org/repos/asf/apr/apr/branches/1.5.x/STATUS
18 * http://svn.apache.org/repos/asf/apr/apr-util/branches/1.5.x/STATUS
19 * http://svn.apache.org/repos/asf/apr/apr/branches/1.6.x/STATUS
20 * http://svn.apache.org/repos/asf/apr/apr-util/branches/1.6.x/STATUS
22 Patches considered for backport are noted in their branches' STATUS:
24 * http://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x/STATUS
25 * http://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x/STATUS
29 [NOTE that x.{odd}.z versions are strictly Alpha/Beta releases,
30 while x.{even}.z versions are Stable/GA releases.]
32 2.4.30 : In development.
33 2.4.29 : Tagged on October 17, 2017. Released on October 23, 2017.
34 2.4.28 : Tagged on September 25, 2017. Released on October 5, 2017.
35 2.4.27 : Tagged on July 6, 2017. Released on July 11, 2017.
36 2.4.26 : Tagged on June 13, 2017. Released on June 19, 2017.
37 2.4.25 : Tagged on December 16, 2016. Released on December 21, 2016.
38 2.4.24 : Tagged on December 16, 2016, not released.
39 2.4.23 : Tagged on June 30, 2016. Released on July 05, 2016.
40 2.4.22 : Tagged on June 20, 2016, not released.
41 2.4.21 : Tagged on June 16, 2016, not released.
42 2.4.20 : Tagged on April 4, 2016. Released on April 11, 2016.
43 2.4.19 : Tagged on March 21, 2016, not released.
44 2.4.18 : Tagged on December 8, 2015. Released on December 14, 2015.
45 2.4.17 : Tagged on October 9, 2015. Released October 13, 2015.
46 2.4.16 : Tagged on July 9, 2015. Released July 15, 2015
47 2.4.15 : Tagged on June 19, 2015. Not released.
48 2.4.14 : Tagged on June 11, 2015. Not released.
49 2.4.13 : Tagged on June 4, 2015. Not released.
50 2.4.12 : Tagged on January 22, 2015. Released Jan 29, 2015
51 2.4.11 : Tagged on January 15, 2015. Not released.
52 2.4.10 : Tagged on July 15, 2014. Released July 21, 2014
53 2.4.9 : Tagged on March 13, 2014. Released on March 17, 2014
54 2.4.8 : Tagged on March 11, 2014. Not released.
55 2.4.7 : Tagged on November 19, 2013. Released on Nov 25, 2013
56 2.4.6 : Tagged on July 15, 2013. Released July, 22, 2013
57 2.4.5 : Tagged on July 11, 2013, not released.
58 2.4.4 : Tagged on February 18, 2013. Released Feb 25, 2013
59 2.4.3 : Tagged on August 17, 2012. Released Aug 18, 2012
60 2.4.2 : Tagged on April 5, 2012. Released Apr 17, 2012.
61 2.4.1 : Tagged on February 13, 2012. Released Feb 21, 2012.
62 2.4.0 : Tagged on January 16, 2012, not released.
63 2.3.16 : Tagged on December 15, 2011.
64 2.3.15 : Tagged on November 8, 2011. Released Nov. 15, 2011.
65 2.3.14 : Tagged on August 1, 2011. Released Aug. 9, 2011.
66 2.3.13 : Tagged on June 28, 2011, not released.
67 2.3.12 : Tagged on May 11, 2011. Released May 23, 2011.
68 2.3.11 : Released as Beta on March 7, 2011.
69 2.3.10 : Tagged on December 13, 2010. Released Dec 21, 2010.
70 2.3.9 : Tagged on November 23, 2010, not released.
71 2.3.8 : Tagged on August 24, 2010.
72 2.3.7 : Tagged on August 19, 2010, not released.
73 2.3.6 : Released on June 21, 2010.
74 2.3.5 : Released on January 26, 2010.
75 2.3.4 : Released on December 8, 2009.
76 2.3.3 : Tagged on November 11, 2009, not released.
77 2.3.2 : Tagged on March 23, 2009, not released.
78 2.3.1 : Tagged on January 2, 2009, not released.
79 2.3.0 : Tagged on December 6, 2008, not released.
81 Contributors looking for a mission:
83 * Just do an egrep on "TODO" or "XXX" in the source.
85 * Review the bug database at: http://issues.apache.org/bugzilla/
87 * Review the "PatchAvailable" bugs in the bug database:
89 https://issues.apache.org/bugzilla/buglist.cgi?bug_status=NEW&bug_status=ASSIGNED&bug_status=REOPENED&product=Apache+httpd-2&keywords=PatchAvailable
91 After testing, you can append a comment saying "Reviewed and tested".
93 * Open bugs in the bug database.
95 * See also the STATUS file in the docs/ directory, which lists documentation-specific TODO items.
98 CURRENT RELEASE NOTES:
100 * Forward binary compatibility is expected of Apache 2.4.x releases, such
101 that no MMN major number changes will occur after 2.4.1. Such changes can
102 only be made in the trunk.
104 * All commits to branches/2.4.x must be reflected in SVN trunk,
105 as well, if they apply. Logical progression is commit to trunk
106 then merge into branches/2.4.x, as applicable.
108 * Current exceptions for RTC for this branch:
113 . non-Unix, single-platform code
115 RELEASE SHOWSTOPPERS:
118 PATCHES ACCEPTED TO BACKPORT FROM TRUNK:
119 [ start all new proposals below, under PATCHES PROPOSED. ]
121 *) mpm_event,worker: Mask signals for threads created by modules in child
122 init, so that they don't receive (implicitely) the ones meant for the MPM.
124 trunk patch: http://svn.apache.org/r1821504
125 http://svn.apache.org/r1821505
126 2.4.x patch: svn merge -c 1821504,1821505 ^/httpd/httpd/trunk .
128 +1: ylavic, icing, covener
130 PATCHES PROPOSED TO BACKPORT FROM TRUNK:
131 [ New proposals should be added at the end of the list ]
133 *) mod_proxy, mod_ssl: Handle SSLProxy* directives in <Proxy> sections,
134 allowing per backend TLS configuration.
135 trunk patch: http://svn.apache.org/r1740928
136 http://svn.apache.org/r1740960
137 http://svn.apache.org/r1740967
138 http://svn.apache.org/r1740987
139 http://svn.apache.org/r1740998
140 http://svn.apache.org/r1742697
141 http://svn.apache.org/r1756976
142 http://svn.apache.org/r1781313
143 http://svn.apache.org/r1812193
144 2.4.x patch: https://svn.apache.org/repos/asf/httpd/httpd/patches/2.4.x/httpd-2.4.x-r1740928_and_co-v6.patch
146 ylavic: Changed to v5 (+r1812193) which hopefully should address compat
148 icing: builds and runs fine in my tests. However I do not have <Proxy> specific
149 setups to check that all config commands apply properly. Otherwise, looks
150 backward compatible to me.
151 ylavic: Argh, update to v6 since v5 partially reverted r1747069 (which was
152 a later change than the original proposal). Here is v5 vs v6 diff:
153 http://home.apache.org/~ylavic/patches/httpd-2.4.x-r1740928_and_co-v5_vs_v6.diff
154 Not really related to the functionality of this proposal, so I
155 didn't reset Stefan's vote...
157 *) mod_remoteip: Add PROXY protocol support
158 trunk patch: http://svn.apache.org/r1776575
159 http://svn.apache.org/r1776578 (doc fix)
160 http://svn.apache.org/r1776627 (shortened name + doc fix)
161 http://svn.apache.org/r1776674 (attribution moved to CHANGES)
162 http://svn.apache.org/r1776740 (attribution updated in mod_remotip.c)
163 http://svn.apache.org/r1778268 (fix compiler warning)
164 http://svn.apache.org/r1780725 (set buckets aside)
165 http://svn.apache.org/r1781030 (fix strict GCC warning)
166 http://svn.apache.org/r1781031 (reference the filter by handle)
167 http://svn.apache.org/r1781701 (rework optional processing case)
168 http://svn.apache.org/r1788674 (final edge cases/ignore slave conns)
169 http://svn.apache.org/r1789800 (remove optional processing)
170 http://svn.apache.org/r1790169 (rename "exception" directive)
171 http://svn.apache.org/r1790457 (Update directive name in err message)
172 http://svn.apache.org/r1806985
173 http://svn.apache.org/r1818279
174 2.4 convenience patch (includes CHANGES):
175 http://home.apache.org/~jim/patches/RemoteIPProxyProtocol.2.4-v2.patch
176 http://svn.apache.org/r1818279
178 ylavic: RemoteIPProxyProtocol* are documented as scoped to server config
179 and virtual host, though using ap_server_conf makes them global
180 only (thus less useful too...).
181 jim: Can docco patch be post-backport?
183 *) mod_proxy_uwsgi: Add in UWSGI proxy (sub)module
184 trunk patch: http://svn.apache.org/r1810358
185 http://svn.apache.org/r1810362
186 http://svn.apache.org/r1810363
187 http://svn.apache.org/r1810365
188 http://svn.apache.org/r1810447
189 http://svn.apache.org/r1816919
190 http://svn.apache.org/r1816922
191 http://svn.apache.org/r1818013
192 http://svn.apache.org/r1818280
193 2.4.x patch: trunk works (modulo CHANGES)
194 svn merge -c r1810358,r1810362,r1810363,r1810365,r1810447,r1816919,r1816922,r1818013,r1818280 ^/httpd/httpd/trunk .
197 icing: tested on ubuntu 16.04 with a simple uwsgi python app.
200 PATCHES/ISSUES THAT ARE BEING WORKED
201 [ New entries should be added at the START of the list ]
203 *) mod_ssl: Return 502 instead of 500 when SSL peer check or
204 proxy_post_handshake hook fails.
205 Trunk patch: r1645529 (works)
206 2.4.x patch which adds CHANGES: https://emptyhammock.com/media/downloads/r1645529-to-2.4.x.txt
208 ylavic: there may be missing bits, see thread for commit r1736510.
210 *) core: Drop an invalid Last-Modified header value coming
211 from a (F)CGI script instead of replacing it with Unix epoch.
212 Warn the users about Last-Modified header value replacements
213 and violations of the RFC.
214 trunk patch: http://svn.apache.org/r1748379
215 http://svn.apache.org/r1750747
216 http://svn.apache.org/r1750749
217 http://svn.apache.org/r1750953
218 http://svn.apache.org/r1751138
219 http://svn.apache.org/r1751139
220 http://svn.apache.org/r1751147
221 http://svn.apache.org/r1757818
222 2.4.x: trunk patches work, final view:
223 http://home.apache.org/~elukey/httpd-2.4.x-core-last_modified_tz_logging.patch
224 The problem has been discussed in dev@ extensively but we did not reach a common
225 agreement about how to proceed in the long term. While we wait, I would really like
226 to introduce useful logs for the users (the starting point of this change was a users@
227 email thread). If this is not the right way to go I will move the patch to other
228 sections of STATUS (stalled or being worked).
229 The code has been tested with a simple PHP script returning different Last-Modified
230 headers (GMT now, GMT now Europe/Paris, GMT tomorrow, GMT yesterday, PST now).
233 *) http: Don't remove the Content-Length of zero from a HEAD response if
234 it comes from an origin server, module or script. Allow the previous
235 behaviour (for legacy/buggy modules only, not origin) by also backporting
236 the HttpContentLengthHeadZero directive (and also HttpExpectStrict which
237 comes for free with the same commit).
238 trunk patch: http://svn.apache.org/r1554303
239 http://svn.apache.org/r1678215
240 2.4.x patch: http://people.apache.org/~ylavic/httpd-2.4.x-preserve_head_cl_zero.patch
242 ylavic: r1554303 issued a major MMN bump, but since the ABI change is two
243 ints added at the end of core_server_config, the proposed merge
244 does a minor bump only.
245 minfrin: Two new directives need to be documented.
247 * mod_proxy_http: Don't establish or reuse a backend connection before pre-
248 fetching the request body, so to minimize the delay between it is supposed
249 to be alive and the first bytes sent: this is a best effort to prevent the
250 backend from closing because of idle or keepalive timeout in the meantime.
251 Also, handle a new "proxy-flushall" environment variable which allows to
252 flush any forwarded body data immediately. PR 56541+37920.
253 trunk patch: http://svn.apache.org/r1656259
254 http://svn.apache.org/r1656359 (CHANGES entry)
255 2.4.x patch: trunk works (modulo CHANGES, docs/log-message-tags)
257 -0: jim: This seems to be a hit to normal performance, to handle an
258 error and/or non-normal condition. The pre-fetch is
259 expensive, and is always done, even before we know that
260 the backend is available to rec' it. I understand the
261 error described, but is the fix actually worth it (plus
262 it seems to allow for a DDoS vector).
263 ylavic: It seems to me that the problem is real since we reuse the
264 connection before prefetching 16K (either controlled by the
265 client, or by an input filter), we currently always prefetch
266 these bytes already. Regarding performance I don't see any
267 difference (more cycles) compared with the current code.
268 However I think I failed to rebuild the header_brigade when
269 the proxy loop is retried (ping), so I need to rework this.
270 Do you think we'd better remove the prefetch, or maybe just
271 make it nonblocking (by default)?
272 jim: Non-blocking seems the best way to handle...
274 * mod_dav: Allow other modules to become providers and add ACLs
275 to the DAV response. Requires a release of apr-util v1.6.
276 trunk patch: http://svn.apache.org/r1748322
277 2.4.x: trunk works modulo CHANGES/MMN
279 rpluem asks: Will this compile with apr-util < v1.6 and keep
280 mod_dav working (without the new features of the patch of course)?
281 I doubt that we will require apr-util 1.6 for the lifetime of 2.4.x
282 (see the discussion around ap_cstr_casecmp[n] an apr 1.6)
283 minfrin: Yes, as you can see in the patch everything applies only
284 if APR_XML_X2T_PARSED is defined, and the patch was tested with
285 both apr-util v1.6 and apr-util v1.5.
286 -1: jorton, breaks binary backwards compat per dev@ discuss
287 msgid <20160902120654.GA12674@redhat.com>
288 (& also, making the structure change with apr-util version
289 means it breaks binary compat across an apr-util upgrade?)
291 * Support PCRE2 (10.x) in place of PCRE (8.x).
292 Submitted by: wrowe, Petr Pisar [ppisar redhat.com]
294 http://svn.apache.org/r1773454
295 http://svn.apache.org/r1773741
296 http://svn.apache.org/r1773742
297 http://svn.apache.org/r1773839
298 http://svn.apache.org/r1773870
299 http://svn.apache.org/r1773882
300 wrowe notes that the current code is too inefficient, owing to the fact
301 that the ovector is a required allocation and is no longer allocated on
302 the stack, by design. The correct fix is an apr userdata allocation on
303 the appropriate pool, which would be thread-safe, but the actual API of
304 ap_regexec[_len]() offers us no pool. We cannot associate that pool with
305 the ap_regex_t, because a single regex may be used by many threads in
306 parallel and is not thread-safe beyond initialization.
307 So the only fix allowing us to use PCRE 10 in httpd 2.4 would be to write
308 this as a thread safe storage buffer for the majority of cases (<10 $args)
309 and we don't have a portable tls mechanism to do so.
312 PATCHES/ISSUES THAT ARE STALLED
314 * core: Add ap_errorlog_provider to make ErrorLog logging modular. This
315 backport keeps syslog logging as part of httpd core and only adds
316 API to allow other modules to be used for error logging.
317 trunk patch: http://svn.apache.org/r1525597
318 http://svn.apache.org/r1525664
319 http://svn.apache.org/r1525845
320 http://svn.apache.org/r1527003
321 http://svn.apache.org/r1527005
322 http://svn.apache.org/r1532344
323 http://svn.apache.org/r1539988
324 http://svn.apache.org/r1541029
325 http://svn.apache.org/r1543979
326 http://svn.apache.org/r1544156
327 http://svn.apache.org/r1626978
328 2.4.x patch: http://people.apache.org/~jkaluza/patches/httpd-2.4.x-errorlog_provider.patch
330 +1: covener w/ doc or code to fix syntax (providername:providerarg not supported like syslog or socacheproviders,
331 needs 2 args which is not valid in ErrorLog manual)
332 trawick: nit: fix "writing" in "/* NULL if we are writing to syslog */"
333 (sorry, haven't finished reviewing completely)
334 jim: What is the status of this??
336 * mod_proxy: Add ap_proxy_define_match_worker() and use it for ProxyPassMatch
337 and ProxyMatch section to distinguish between normal workers and workers
338 with regex substitutions in the name. Implement handling of such workers
339 in ap_proxy_get_worker(). Fixes the bug when regex workers were not
340 matched and used for request. PR 43513.
341 trunk patch: http://svn.apache.org/r1609680
342 http://svn.apache.org/r1609688
343 http://svn.apache.org/r1641381
344 ylavic: Merge patch provided (reusing new->real to avoid double de_socketfy() call).
345 Also added missing r1609688 to the patchset.
346 2.4.x patch: http://people.apache.org/~ylavic/httpd-2.4.x-ap_proxy_define_match_worker.patch
348 -0: covener tried to review this one in Austin with Jeff. Does the added match function
349 really cover a very narrow set of parameters with the way it skips over backreferences?
350 Also, why a new API vs. just setting the field inline?
352 * core: Add support for systemd socket activation.
353 trunk patch: http://svn.apache.org/r1511033
354 http://svn.apache.org/r1608686
355 http://svn.apache.org/r1608694
356 http://svn.apache.org/r1608703
357 http://svn.apache.org/r1608721
358 http://svn.apache.org/r1608744
359 2.4.x patch: http://people.apache.org/~jkaluza/patches/mod_systemd/httpd-2.4.x-socket-activation.patch
362 * mod_proxy: Ensure network errors detected by the proxy are returned as
363 504 Gateway Timeout as opposed to 502 Bad Gateway
364 trunk patch: https://svn.apache.org/viewvc?view=revision&revision=1480058
365 2.4.x patch: trunk patch works modulo CHANGES
367 -1: rpluem: This change is still disputed. See
368 http://mail-archives.apache.org/mod_mbox/httpd-dev/201305.mbox/%3C1B16B9E3-87BA-4EEF-939C-7C7313B54714%40gbiv.com%3E
370 * cross-compile: allow to provide CC_FOR_BUILD so that gen_test_char will be
371 compiled by the build compiler instead of the host compiler.
372 Also set CC_FOR_BUILD to 'cc' when cross-compilation is detected.
373 Trunk patches: http://svn.apache.org/viewvc?view=revision&revision=1327907
374 http://svn.apache.org/viewvc?view=revision&revision=1328390
375 http://svn.apache.org/viewvc?view=revision&revision=1328714
376 2.4 patch: http://people.apache.org/~fuankg/diffs/httpd-2.4.x-cross_compile.diff
377 fuankg: on hold until we agree for a better and more simple solution ...
379 * Makefile.win: Added copying of .vbs / .wsf CGIs to Windows install target.
380 Moved fixing of shebang to separate target so that it is
381 no longer executed by default and all CGIs remain inactive.
382 trunk patch: http://svn.apache.org/viewvc?view=revision&revision=1387984
383 http://svn.apache.org/viewvc?view=revision&revision=1421203
384 http://svn.apache.org/viewvc?view=revision&revision=1421591
385 2.4.x patch: http://people.apache.org/~fuankg/diffs/httpd-2.4.x-Makefile.win.diff
388 This commit is essentially deciding that an httpd install on
389 Windows now has printenv/testcgi written in 2 more languages.
390 To the extent that the usefulness is that it shows how to make scripts
391 of these types executable by httpd, I believe that the documentation
392 is the proper place to solve that. To the extent that the usefullness
393 is to show how to implement a CGI in these particular languages, I believe
394 that the httpd distribution and documentation in general is not the
395 place for that. Historically these types of scripts have caused problems
396 for downstream vendorsas well as newbies (and sometimes the intersection
397 of those two groups) who don't understand that these are information leaks
398 once they are enabled, and the subtlety of the way they are disabled ("Apache
399 messed up the first line; let me fix that") contributes to that.
400 fuankg notes: I've just added a big warning to all CGI scripts which should now
401 make absolutely clear that these CGIs are for testing purpose only - so those
402 who enable those scripts with inserting the right shebang should be 100% aware
403 of any risks (this should cover your last point).
404 jim: trawick, does the above address your concerns?
405 trawick: to some extent (somebody reading the script gets an idea)
406 Why isn't the configuration requirement documented instead
407 of described indirectly in a sample?
408 Why are these new samples added to the install without three
409 votes? (I didn't veto it; put your name next to the two
410 existing ones and I'll be satisfied that enough people
411 considered this addition as an appropriate solution for a
412 real httpd usability problem.)
413 wrowe: I'd agree with trawick, and suggest that these scripts can begin
414 their life somewhere in the manual/ tree. This really seems like
415 the place where /usr/share/httpd/examples/ would be useful, but
416 there isn't an ordinary directory for that. Since we want none
417 of the scripts to function 'out of the box', what about a new
418 cgi-examples/ dir alongside cgi-bin/? Otherwise manual/cgi/examples
421 *) mod_journald: Add new module mod_journald to log error logs into journald.
422 trunk patch: http://svn.apache.org/r1610339
423 http://svn.apache.org/r1621806
424 http://svn.apache.org/r1812339
425 2.4.x patch: http://people.apache.org/~jkaluza/patches/httpd-2.4.x-mod_journald.patch
426 http://svn.apache.org/r1812339
428 jchampion: Looks like the headers require GCC extensions to compile, so
429 mod_journald can't be configured in maintainer mode (-std=c89).
430 Can anyone else reproduce, or is it just my distro?
431 ylavic: missing r1812339 for maintainer-mode/c89/-Werror compliance,
432 needed if the above configure.in proposal gets backported.
433 Note that r1812339 could be backported in any case, even if
434 the above configure.in proposal does not get accepted.
436 * mod_systemd: New module, for integration with systemd on Linux.
437 trunk patch: http://svn.apache.org/r1393976
438 http://svn.apache.org/r1393997
439 http://svn.apache.org/r1484554
440 http://svn.apache.org/r1528032
441 http://svn.apache.org/r1528034
442 http://svn.apache.org/r1614821
443 http://svn.apache.org/r1618579
444 http://svn.apache.org/r1618588
445 2.4.x patch: http://people.apache.org/~jkaluza/patches/mod_systemd/httpd-2.4.x-mod_systemd.patch
447 sf comments: The IdleShutdown logic seems broken. Consider a single
448 active connection that is stalled for 10 seconds. That
449 connection will be broken after GracefulShutdownTimeout.
450 A better logic would be to check if there is any open
451 connection that is not in keep-alive state.