APACHE 2.0 STATUS: -*-text-*-
Last modified at [$Date: 2004/09/04 11:36:13 $]
Release:
2.0.51 : in development
2.0.50 : released June 30, 2004 as GA.
2.0.49 : released March 19, 2004 as GA.
2.0.48 : released October 29, 2003 as GA.
2.0.47 : released July 09, 2003 as GA.
2.0.46 : released May 28, 2003 as GA.
2.0.45 : released April 1, 2003 as GA.
2.0.44 : released January 20, 2003 as GA.
2.0.43 : released October 3, 2002 as GA.
2.0.42 : released September 24, 2002 as GA.
2.0.41 : rolled September 16, 2002. not released.
2.0.40 : released August 9, 2002 as GA.
2.0.39 : released June 17, 2002 as GA.
2.0.38 : rolled June 16, 2002. not released.
2.0.37 : rolled June 11, 2002. not released.
2.0.36 : released May 6, 2002 as GA.
2.0.35 : released April 5, 2002 as GA.
2.0.34 : tagged March 26, 2002.
2.0.33 : tagged March 6, 2002. not released.
2.0.32 : released Feburary 16, 2002 as beta.
2.0.31 : rolled Feburary 1, 2002. not released.
2.0.30 : tagged January 8, 2002. not rolled.
2.0.29 : tagged November 27, 2001. not rolled.
2.0.28 : released November 13, 2001 as beta.
2.0.27 : rolled November 6, 2001
2.0.26 : tagged October 16, 2001. not rolled.
2.0.25 : rolled August 29, 2001
2.0.24 : rolled August 18, 2001
2.0.23 : rolled August 9, 2001
2.0.22 : rolled July 29, 2001
2.0.21 : rolled July 20, 2001
2.0.20 : rolled July 8, 2001
2.0.19 : rolled June 27, 2001
2.0.18 : rolled May 18, 2001
2.0.17 : rolled April 17, 2001
2.0.16 : rolled April 4, 2001
2.0.15 : rolled March 21, 2001
2.0.14 : rolled March 7, 2001
2.0a9 : released December 12, 2000
2.0a8 : released November 20, 2000
2.0a7 : released October 8, 2000
2.0a6 : released August 18, 2000
2.0a5 : released August 4, 2000
2.0a4 : released June 7, 2000
2.0a3 : released April 28, 2000
2.0a2 : released March 31, 2000
2.0a1 : released March 10, 2000
Please consult the following STATUS files for information
on related projects:
* srclib/apr/STATUS
* srclib/apr-util/STATUS
* docs/STATUS
Contributors looking for a mission:
* Just do an egrep on "TODO" or "XXX" in the source.
* Review the "PatchAvailable" bugs in the bug database.
Append a comment saying "Reviewed and tested".
* Open bugs in the bug database.
RELEASE SHOWSTOPPERS:
PATCHES TO BACKPORT FROM 2.1
[ please place file names and revisions from HEAD here, so it is easy to
identify exactly what the proposed changes are! ]
*) mod_rewrite: Fix 0 bytes write into random memory position. PR 31036.
(2.0 + 1.3)
http://www.apache.org/~nd/dbmmap_1.3.patch
http://www.apache.org/~nd/dbmmap_2.0.patch
+1: nd
*) mod_rewrite:Fix query string handling for proxied URLs. PR 14518.
(2.0 + 1.3)
modules/mappers/mod_rewrite.c: r1.259
+1: nd
*) Don't link suexec against APR/etc libraries.
http://cvs.apache.org/viewcvs.cgi/httpd-2.0/support/Makefile.in?r1=1.38&r2=1.39
+1: jorton, trawick, nd
nd: what about the need of -static (dunno)?
jorton: -static was needed only to make sure libapr etc were linked statically
into suexec; they didn't work shared in a binary distribution because
LD_LIBRARY_PATH etc are ignored for a setuid binary (that only matters
for binary distributors where suexec gets relocated, since libtool
puts an appropriate RPATH in the binary). Not linking suexec against libapr
etc avoids the issue entirely (and avoids scary >1Mb suexec binaries)
nd: oh well.
*) mod_headers: Support {...}s tag for SSL variable lookup.
http://www.apache.org/~jorton/mod_headers-2.0-ssl.diff
+1: jorton, trawick
nd: two comments:
(1) is the use of APR_ASCII_* ebcdic-safe? I.e. shouldn't we use the
native chars here and it will be converted later? (I'm not sure)
(2) I'd put out (null) only if val is NULL, not if it's empty.
*) Fix the handling of URIs containing %2F when AllowEncodedSlashes
is enabled. Previously, such urls would still be rejected with
404.
server/util.c: r1.148, r1.149
+1: trawick, stoddard
*) Remove LDAP toolkit specific code from util_ldap and mod_auth_ldap.
modules/experimental/mod_auth_ldap.c: 1.28
modules/experimental/util_ldap.c: 1.36
+0: minfrin (this requires the apr-util LDAP overhaul to be ported to
apr-util v0.9 first)
-0: jerenkrantz
jerenkrantz: I don't think we can change the APR 0.9 interfaces.
They are supposed to be set in stone.
*) Add load balancer support to the scoreboard in preparation for
load balancing support in mod_proxy.
include/scoreboard.h: 1.52
server/scoreboard.c: 1.75
+1: minfrin
-0: nd, jerenkrantz
nd: -0 as in "it should be considered as a 2.1 feature".
If the modified structures are public (are they?), I'm just -1.
jerenkrantz: Sounds like a good 2.1 feature...
*) mod_cgi: Added API call and overload of detached field in cgi_exec_info_t
structure to support loading in current or new address space for CGIs.
The patch change how NetWare use cmdtype for processes. It was made
necessary by changes done to log.c r1.145.
The HTTP and the APR patches are available at:
<http://www.apache.org/~clar/detach-addrspace_HTTP_2_0.patch>
<http://www.apache.org/~clar/detach-addrspace_APR_0_9.patch>
+1: jjclar, bnicholes
*) mod_ssl: Remove some unused functions (after CAN-2004-0488 fix is applied)
http://cvs.apache.org/viewcvs.cgi/httpd-2.0/modules/ssl/ssl_util.c?r1=1.46&r2=1.47
+1: jorton
trawick: need changes to mod_ssl.h to remove prototypes for those removed
functions
0: nd: IMHO that's a public API change then and not applicable for
2.0, just let 'em in
*) mod_actions: Regression from 1.3: the file referred to must exist.
Solve this by introducing the "virtual" modifier to the Action
directive. PR 28553.
modules/mappers/mod_actions.c: r1.32, r1.34
jerenkrantz: Icky side-effect of the *t == '0' check.
+1: nd, jerenkrantz
*) mod_log_config: Cleanup log_header_out function to allow multiple headers
like Set-Cookie to be logged properly. PR 27787 (2.0 + 1.3)
modules/loggers/mod_log_config.c: r1.116
jerenkrantz asks: Isn't this what apr_table_merge is for?
nd replies: yep. But cookies won't be merged, because browsers don't
support it.
jerenkrantz: Couldn't we copy the table and merge the values somehow?
This just seems like a lot of code to duplicate what we
have already. *shrug* Regardless, patch looks okay...
+1: nd, jerenkrantz
*) mod_dav: Send an EOS at the end of the multistatus brigade.
http://cvs.apache.org/viewcvs.cgi/httpd-2.0/modules/dav/main/mod_dav.c?r1=1.105&r2=1.106
+1: jorton, jerenkrantz
nd asks: Sure, you want to drop the return code of ap_pass_brigade?
jerenkrantz: They already did drop it. Note that this really isn't
a correctness fix; just a perf. fix. We'd send the EOS
later without it.
*) Provide TLS/SSL upgrade functionality in mod_ssl allowing an unsecure
connection to be upgraded to a secure connection upon request by the
client. The full patch file is available at http://www.apache.org/~bnicholes/
as well as a test client tlsupgrade.c. This functionality is mainly used by
IPP clients today.
modules/ssl/mod_ssl.c: r1.75, r1.97
modules/ssl/mod_ssl.h: r1.123
modules/ssl/ssl_engine_config.c: r1.71, r1.90
modules/ssl/ssl_engine_init.c: r1.107, r1.126
modules/ssl/ssl_engine_io.c: r1.102, r1.124
modules/ssl/ssl_engine_kernel.c: r1.83, r1.105, r1.108
modules/ssl/ssl_util.c: r1.36
modules/ssl/ssl_private.h: r1.2
+1: bnicholes
-0: jerenkrantz (should wait for 2.2)
-0: jorton (msgid <[EMAIL PROTECTED]>)
* Replace some of the mutex locking in the worker MPM with
atomic operations for higher concurrency.
server/mpm/worker/fdqueue.c 1.24, 1.25
+1: brianp, ianh, jjclar
trawick: Doesn't this make Apache 2.0.next slower except
when the right atomic operations are available/
implemented? (Due to under-the-covers mutex
operations when the dummy atomics are used?)
-0: stoddard (at least until the performance implications are clarified)
* Rewrite how proxy sends its request to allow input bodies to
morph the request bodies. Previously, if an input filter
changed the request body, the original C-L would be sent which
would be incorrect.
Due to HTTP compliance, we must either send the body T-E: chunked
or include a C-L for the request body. Connection: Close is not
an option. [jerenkrantz 2002/12/08 21:37:27]
+1: stoddard, striker, jim
-1: brianp (we need a more robust solution than what's in 2.1 right now),
jerenkrantz (should be fixed, but I don't have time to do this)
* Allow mod_dav to do weak entity comparison functions.
modules/dav/main/util.c: r1.45
[ This one is under review. Don't merge. ]
+1:
* mod_negotiation: parse quality values independent from
the current locale and level values as integers. PR 17564.
(essentially: get a rid of atof()) (2.0 + 1.3)
modules/mappers/mod_negotiation.c: r1.114
+1: nd
We need to decide what happens with unparsable qvalues. RFC 2616
states that q defaults to 1. (see 14.1 - 14.4). So should wrong
qvalues be returned as 1.0 or 0.0 (as atof() did)?
1.0: nd
0.0: jim (a default != an "errored" value)
* Keep the same SSLMutex for the lifetime of the parent process
(instead of having children using different mutexes and failing
to lock the session cache across restarts.)
New patch forthcoming - JimJag's changes make the merge ugly.
+1: wrowe
+1 (concept): jim (final vote when the patch is available)
* Fix the SSLMutex config parser so that all 'mechanisms' can take
a filename, even if ignored, and they are rooted to the full path
to the server (except for posixsem locks). This allows a very
cross-platform default:logs/ssl_mutex to be used everywhere. Also
eliminates the '.pid' suffix so that the name given is the name.
Allows Win32 and other non-unicies to use named locks.
New patch forthcoming - JimJag's changes make the merge ugly.
+1: wrowe
+1 (concept): jim (final vote when the patch is available)
* mod_ssl: Drop SSL_EXPERIMENTAL_ENGINE test in favor of testing for the
ENGINE_init() function in config.m4, and use HAVE_ENGINE_INIT instead.
wrowe notes that this feature is a noop until configured with SSLEngine.
http://www.apache.org/~wrowe/have_engine_init.patch for a clean 2.0 patch.
modules/ssl/README 1.40
modules/ssl/config.m4 1.14
modules/ssl/mod_ssl.c 1.79
modules/ssl/mod_ssl.h 1.135
modules/ssl/ssl_engine_config.c 1.78
modules/ssl/ssl_engine_init.c 1.113
modules/ssl/ssl_toolkit_compat.c 1.33
+0: wrowe {Pending research into how to get AC to use -lsockets et. al.,
shows breakage on Solaris which can't -lcrypto -lssl without
the extra pkgconfig/openssl.pc Libs: * foo }
* mod_ssl: fix a link failure when the openssl-engine libraries are
present but the engine headers are missing.
modules/ssl/mod_ssl.c: r1.87
modules/ssl/mod_ssl.h: r1.139
modules/ssl/ssl_engine_config.c: r1.82
PREREQ: Blow away of SSL_EXPERIMENTAL_ENGINE (see above)
+1: jwoolley, trawick, jim, jerenkrantz
* When UseCanonicalName is set to OFF, allow ap_get_server_port to
check r->connection->local_addr->port before defaulting to
server->port or ap_default_port()
server/core.c r1.247
+1: bnicholes, jim
0: nd, jerenkrantz
nd: can the local_addr->port ever be 0?
bnicholes response: I couldn't tell you for sure if local_addr->port
could be 0. But it makes sense that if it were then Apache
wouldn't be listening on any port so it wouldn't matter anyway.
nd replies: But if it can't be 0 the alternatives thereafter make no
sense anymore, right?
jim proposes: UseCanonicalName Client directive
which implements this, keeping UseCanonicalName Off
"as is".
* ThreadStackSize for Win32 and threaded MPMs
(if there is sufficient interest I'll pursue getting APR 0.9
fixed up as well as putting together a patch for httpd 2.0.next
which integrates the two rounds of changes)
+1 concept: trawick, nd, stoddard
CURRENT RELEASE NOTES:
* Backwards compatibility is expected of future Apache 2.0 releases,
such that no MMN major number changes will occur until 2.1.
* All commits to APACHE_2_0_BRANCH must be reflected in cvs HEAD
as well, if they apply. Logical progression is commit to HEAD,
get feedback and then commit to APACHE_2_0_BRANCH.
CURRENT VOTES:
* Promote mod_ldap and mod_auth_ldap from experimental to
non experimental status.
+1: bnicholes
+0: minfrin (wait till the last cache bugs are ironed out)
* Promote mod_cache from experimental to non-experimental
status (keep issues noted below in EXPERIMENTAL MODULES as
items to be addressed as a supported module).
+1: jim, stoddard, bnicholes, fielding
* Develop in Review-Then-Commit or Commit-Then-Review mode
on APACHE_2_0_BRANCH (no vetoes, this is a straight vote.)
R-T-C: trawick, wrowe, jerenkrantz, stoddard, rederpj, striker, nd,
gregames(lazy consensus OK for mainline), jwoolley
Abstain:
C-T-R: BrianP, aaron, jim, gstein, bnicholes, minfrin
gstein: we have an open branch, so there is an easy release
valve for feature and API changes. we trust developers
to put their changes in the right place. if they
*don't*, that is what the -T-R is all about, and why we
have source control.
yes, the branch should be "bug fix only" or other
voted-upon feature changes, but we already have
guidelines for all that.
http://httpd.apache.org/dev/guidelines.html
see the section titled "Product Changes" and the
following paragraph which states:
"... All product changes to a prior-branch (old
version) repository require consensus before the change
is committed."
And under "When to Commit a Change", first line:
"Ideas must be review-then-commit; patches can be
commit-then-review."
The problem here is that R-T-C expresses a fundamental
DISTRUST of your peers. We had problems stabilizing the
code simply because there are numerous interests in the
codebase, and those are not fully compatible. With the
branch, we have partitioned the interest: bug fix vs
new features. But developers *know* when a bug fix
should be applied or should not. There is no reason to
tell a developer they are wrong, and their basic
understanding of what is broken and what needs to be
fixed is subject to peer review. Once you have a bug
fix in hand, it isn't rocket science. And, always,
there is the option to pull a fix back out if a
developer goofs. We all goof, but there is no sense in
ASSUMING that incorrect behavior is the norm.
If a develop consistently causes problems, then we have
ways of dealing with that. But at the moment, this
isn't the case, and it does not foster a healthy
environment to apply that label to ALL developers.
R-T-C is fundamentally "you're guilty of bad behavior,
with no way to prove innocence. all your actions are
hereby monitored."
Why did I wait so long to issue this commentary? Simply
because I disagreed with it at such a fundamental level
that I didn't want to deal with it. Also, that I
*wasn't* going to deal with it when I had changes to
commit. But now we're seeing this stupid R-T-C hammer
being used to smack developers over the head. That is
inappropriate when the bug fixes they are committing to
the branch are entirely reasonable and appropriate. The
hammer simply should not exist.
Yes, I'm ranting, and hey, I'm even sober. :-) R-T-C is
Badness. If I could veto the policy, I would. If I can
ignore it, I will. For years, this group was built on
the notion of peer respect and trust. R-T-C destroys
that, and makes the environment less cozy and less
inviting. Our polcies and procedures were designed to
operate successfully in a C-T-R environment; there is
no need for such a draconian policy.
Bleh.
minfrin: I see no point in adding any bureaucracy between a bug
and its fix.
* httpd-std.conf and friends;
a) httpd-std.conf should be tailored by install (from src or
binbuild) even if user has existing httpd.conf
+1: trawick, slive, gregames, ianh, Ken, wrowe, jwoolley, jim, nd,
erikabele
wrowe - prefer httpd.default.conf to avoid ambiguity with cvs,
note that win32 installer creates just that file
(.default.conf rather than .conf.default so that win32
can recognize .conf files as text configuration files.)
b) tailored httpd-std.conf should be copied by install to
sysconfdir/examples
-0: striker
c) tailored httpd-std.conf should be installed to
sysconfdir/examples or manualdir/exampleconf/
+1: slive, trawick, Ken, nd (prefer the latter), erikabele
d) tailored httpd-std.conf should be installed as httpd-std-<version>.conf.
+1: striker
e) Installing a set of default config files when upgrading a server
doesn't make ANY sense at all.
+1: ianh - medium/big sites don't use 'standard config' anyway, as it
usually needs major customizations
-1: Ken, wrowe, jwoolley, jim, nd, erikabele
wrowe - diff is wonderful when comparing old/new default configs,
even for customized sites that ianh mentions
jim - it makes sense assuming that the default configs
include the updated directives and inline comments
that explain the changes and make the 'diff' more useful.
* If the parent process dies, should the remaining child processes
"gracefully" self-terminate. Or maybe we should make it a runtime
option, or have a concept of 2 parent processes (one being a
"hot spare").
See: Message-ID: <[EMAIL PROTECTED]>
Self-destruct: Ken, Martin
Not self-destruct: BrianP, Ian, Cliff, BillS
Make it runtime configurable: Aaron, Justin, wrowe, rederpj, jim, nd
/* The below was a concept on *how* to handle the problem */
Have 2 parents: +1: jim
-1: Justin, wrowe, rederpj, nd
+0: Martin (while standing by, could it do
something useful?)
* Make the worker MPM the default MPM for threaded Unix boxes.
+1: Justin, Ian, Cliff, BillS, striker
+0: BrianP, Aaron (mutex contention is looking better with the
latest code, let's continue tuning and testing), rederpj, jim
-0: Lars, wrowe (let's make this defacto for the 2.2 release.),
nd (for 2.0)
RELEASE NON-SHOWSTOPPERS BUT WOULD BE REAL NICE TO WRAP THESE UP:
* mod_ssl: We twiddle status bits rather than calling SSL_renegotiate
to unset the current negotiation status. This especially affects
sslc users who can't touch these internal bits (nor should OpenSSL
based apps do so.) Flipping to SSL_renegotiate causes us to start
failing perl-framework tests. Needs some further research.
http://www.apache.org/~wrowe/ssl_renegotiate.patch for a clean 2.0 patch,
or for httpd-2.1 refer to:
modules/ssl/config.m4 1.15
modules/ssl/ssl_engine_io.c 1.08
modules/ssl/ssl_engine_kernel.c 1.93
modules/ssl/ssl_toolkit_compat.c 1.34
* There is a bug in how we sort some hooks, at least the pre-config
hook. The first time we call the hooks, they are in the correct
order, but the second time, we don't sort them correctly. Currently,
the modules/http/config.m4 file has been renamed to
modules/http/config2.m4 to work around this problem, it should moved
back when this is fixed.
OtherBill offers that this is a SERIOUS problem. We do not sort
correctly by the ordering arguments passed to the register hook
functions. This was proven when I reordered the open_logs hook
to attempt to open the error logs prior to the access logs. Possibly
the entire sorting code needs to be refactored.
* pipes deadlock on all platforms with limited pipe buffers (e.g. both
Linux and Win32, as opposed to only Win32 on 1.3). The right solution
is either GStein's proposal for a "CGI Brigade", or OtherBill's proposal
for "Poll Buckets" for "Polling Filter Chains". Or perhaps both :-)
* All handlers should always send content down even if r->header_only
is set. If not, it means that the HEAD requests don't generate the
same headers as a GET which is wrong.
* HP/UX 10.20: compile breakage in APR. Looks like it should be easy
to fix, probably just some extraneous #include's that are fouling
things up.
PR: 9457
Jeff: See my reply and patch in the PR (and previous commit to
stop using "pipe" as a field name). If patch is committed, we
should be okay. I'll wait to see if the user tests the patch.
Update by Jeff 20020722: I got an account on HP 10.20. It looks
like some of the APR thread detection is screwed up. If we find
pthread.h but we can't compile the pthread test program we still
think we can use threads. For that reason, the patch I posted
to the PR won't work as-is since a failed compile of the test
program means nothing.
* exec cmd and suexec arg-passing enhancements
Status: Patches proposed
Message-ID: <[EMAIL PROTECTED]>
(see the "proc.patch" and "suexec-shell.patch" links in this message)
* The 2.0.36 worker MPM graceless shutdown changes work but are
a bit clunky on some platforms; eg, on Linux, the loop to
join each worker thread seems to hang, and the parent ends up
killing off the child with SIGKILL. But at least it shuts down.
* --enable-mods-shared="foo1 foo2" is busted on Darwin. Pier
posted a patch (Message-ID: <[EMAIL PROTECTED]>).
* We do not properly substitute the prefix-variables in the configuration
scripts or generated-configs. (i.e. if sysconfdir is etc,
httpd-std.conf points to conf.)
* If any request gets through ap_process_request_internal() and is
scheduled to be served by the core handler, without a flag that this
r->filename was tested by dir/file_walk, we need to 500 at the very
end of the ap_process_request_internal() processing so sub_req-esters
know this request cannot be run. This provides authors of older
modules better compatibility, while still improving the security and
robustness of 2.0.
Status: still need to decide where this goes, OtherBill comments...
Message-ID: <[EMAIL PROTECTED]>
[Deleted comments regarding the ap_run_handler phase, as irrelevant
as BillS points out that "common case will be caught in
default_handler already (with the r->finfo.filetype == 0 check)"
and the issue is detecting this -before- we try to run the req.]
gregames says: can this happen somehow without a broken module
being involved? If not, why waste cycles trying to defend against
potential broken modules? It seems futile.
wrowe counters: no, it shouldn't happen unless the module is broken.
But the right answer is to fail the request up-front in dir/file
walk if the path was entirely invalid; and we can't do that either
UNTIL 2.1 or we break modules that haven't hooked map_to_storage.
* With AP_MODE_EXHAUSTIVE in the core, it is finally clear to me
how the Perchild MPM should be re-written. It hasn't worked
correctly since filters were added because it wasn't possible to
get the content that had already been written and the socket at
the same time. This mode lets us do that, so the MPM can be
fixed.
* htpasswd blindly processes the file you give it, and does no
sanity checking before totally corrupting whatever file it was
you thought you had. It should check the input file and bail
if it finds non-comment lines that do not contain exactly 1
':' character.
Message-ID: <[EMAIL PROTECTED]>
* Can a static httpd be built reliably?
Message-ID: <[EMAIL PROTECTED]>
* [Ken] Test suite failures:
o worker is also failing some of the 'cgi' subtests
(see <URL:http://Source-Zone.Org/Apache/regression/>):
Justin says: "Worker should be fine and passes httpd-test here.
I think it's a perl or a httpd-test problem."
* Usage of APR_BRIGADE_NORMALIZE in core_input_filter should be
removed if possible.
Message-ID: <[EMAIL PROTECTED]>
Jeff wonders if we still care about this. It is no longer an
API issue but simply an extra trip through the brigade.
* The Add...Filter and Set...Filter directives do not allow the
administrator to order filters, beyond the order of filename (mime)
extensions. It isn't clear if Set...Filter(s) should be inserted
before or after the Add...Filter(s) which are ordered by sequence of
filename extensions. At minimum, some sort of +-[0-10] syntax seems
like a nice solution. See ROADMAP.
* Get perchild to work on platforms other than Linux. This
will require a portable mechanism to pass data and file/socket
descriptors between vhost child groups. An API was proposed
on [EMAIL PROTECTED]:
Message-ID: <[EMAIL PROTECTED]>
* Try to get libtool inter-library dependency code working on AIX.
Message-ID: <[EMAIL PROTECTED]>
Justin says: If we get it working on AIX, we can enable this
on all platforms and clean up our build system
somewhat.
Jeff says: I thought I tested a patch for you sometime in
January that you were going to commit within a few
days.
* Handling of %2f in URIs. Currently both 1.3 and 2.0
completely disallow %2f in the request URI path (see
ap_unescape_url() in util.c). It's permitted and passed
through in the query string, however. Roy says the
original reason for disallowing it, from five years ago,
was to protect CGI scripts that applied PATH_INFO to
a filesystem location and which might be tricked by
..%2f..%2f(...). We *should* allow path-info of the
form 'http://foo.com/index.cgi/path/to/path%2finfo'.
Since we've revamped a lot of our processing of path
segments, it would be nice to allow this, or at least
allow it conditionally with a directive.
OtherBill adds that %2f as the SECOND character of a multibyte
sequence causes the request to fail! This happens notably in
the ja-jis encoding.
OtherBill is -0.5 for even considering this until 2.2 because
it removes some protection we provided to third party modules
that would mysteriously 'evaporate', exposing potential holes
in security. Putting this change into 2.1 development now (with
strong warnings!) will give authors a chance to vet their code.
* FreeBSD, threads, and worker MPM. All seems to work fine
if you only have one worker process with many threads. Add
a second worker process and the accept lock seems to be
lost. This might be an APR issue with how it deals with
the child_init hook (i.e. the fcntl lock needs to be resynced).
More examination and analysis is required.
Status: This has also been reported on Cygwin.
FreeBSD 4.7 was reputed to have 'fixed' threads. Not.
Message-ID: <[EMAIL PROTECTED]> (cygnus)
Aaron says: I spent some time disecting this and have come to
the conclusion that it is not a problem in the worker MPM
(or at least, it is not isolated to a problem in worker).
I'll list some of the problems I'm seeing in case someone
else wants to pick up where I've left off:
- Delivery of just about any signal to one of the child
processes will send it into an infinite loop as well.
- Even though the parent is spinning out of control,
at first the child or children will appear to work
properly. At times it is possible to get it into a state,
however, where a request will hang until another concurrent
request "kicks" the first, at which point the second will
hang. My theory is that this has to do with the
pthread_cond_*() implementation in FreeBSD, but it's still
possible that it is in APR.
Justin adds: Oh, FreeBSD threads are implemented entirely with
select()/poll()/longjmp(). Welcome to the nightmare.
So, that means a ktrace output also has the thread
scheduling internals in it (since it is all the same to
the kernel). Which makes it hard to distinguish between
our select() calls and their select() calls.
*bangs head on wall repeatedly* But, some of the libc_r
files have a DBG_MSG #define. This is moderately helpful
when used with -DNO_DETACH. The kernel scheduler isn't
waking up the threads on a select(). Yum. And, I bet
those decrementing select calls have to do with the
scheduler. Time to brush up on our OS fundamentals.
* There is increasing demand from module writers for an API
that will allow them to control the server à la apachectl.
Reasons include sole-function servers that need to die if
an external dependency (e.g., a database) fails, et cetera.
Perhaps something in the (ever more abused) scoreboard?
On the other hand, we already have a pipe that goes between parent
and child for graceful shutdown events, along with an API that
can be used to send a message down that pipe. In threaded MPMs,
it is easy enough to make that one pipe be used for graceful
and graceless events, and it is also easy to open that pipe
to both parent and child for writing. Then we just need to
figure out how to do graceless on non-threaded MPMs.
* Win32: Rotatelogs sometimes is not terminated when Apache
goes down hard. FirstBill was looking at possibly tracking the
child's-child processes in the parent process.
stoddard: Shared scoreboard might offer a good way for the parent
to keep track of 'other child' processes and whack them if the child
goes down.
Other thoughts on walking the process chain using the NT kernel
have also been proposed on APR.
* Eliminate unnecessary creation of pipes in mod_cgid
* Combine log_child and piped_log_spawn. Clean up http_log.c.
Common logging API.
* There are still a number of places in the code where we are
losing error status (i.e. throwing away the error returned by a
system call and replacing it with a generic error code)
* Mass vhosting version of suEXEC.
* All DBMs suffer from confusion in support/dbmmanage (perl script) since
the dbmmanage employs the first-matched dbm format. This is not
necessarily the library that Apache was built with. Aught to
rewrite dbmmanage upon installation to bin/ with the proper library
for predictable mod_auth_dbm administration.
Questions; htdbm exists, time to kill dbmmanage, or does it remain
useful as a perl dbm management example? If we keep it,
do we address the issue above?
* Integrate mod_dav.
Some additional items remaining:
- case_preserved_filename stuff
(use the new canonical name stuff?)
- find a new home for ap_text(_header)
- is it possible to remove the DAV: namespace stuff from util_xml?
* ap_core_translate() and its use by mod_mmap_static and mod_file_cache
are a bit wonky. The function should probably be exposed as a utility
function (such as ap_translate_url2fs() or ap_validate_fs_url() or
something). Another approach would be a new hook phase after
"translate" which would allow the module to munge what the
translation has decided to do.
Status: Greg +1 (volunteers)
* Explore use of a post-config hook for the code in http_main.c which
calls ap_fixup_virutal_hosts(), ap_fini_vhost_config(), and
ap_sort_hooks() [to reduce the logic in main()]
* read the config tree just once, and process N times (as necessary)
OtherBill adds that the 'good' solution of three passes against the
config tree within one read is the better solution, but breaks many
modules. Best left for 2.2?
-0.5: OtherBill
* (possibly) use UUIDs in mod_unique_id and/or mod_usertrack
* (possibly) port the bug fix for PR 6942 (segv when LoadModule is put
into a VirtualHost container) to 2.0.
* shift stuff to mod_core.h
* callers of ap_run_create_request() should check the return value
for failure (Doug volunteers)
* Win32: Get Apache working on Windows 95/98. The following work
(at least) needs to be done:
- Document warning that OSR2 is required (for Crypt functions, in
rand.c, at least.) This could be resolved with an SSL library, or
randomization in APR itself.
- Bring the Win9xConHook.dll from 1.3 into 2.0 (no sense till it
actually works) and add in a splash of Win9x service code.
* Fix the worker MPM to use POD to kill child processes instead
of ap_os_killpg, regardless of how they should die.
* Scoreboard structures could be changed in the future such that
proper alignment is not maintained, leading to segfaults on
some systems. Cliff posted a patch to deal with this issue but
later recanted. See this message to [EMAIL PROTECTED]:
Message-ID: <[EMAIL PROTECTED]
.cs.virginia.edu>
TODO ISSUES REMAINING IN MOD_SSL:
* In order to use a DSO version of mod_ssl we have to link with
-lssl and -lcrypto. A workaround is in place right now where the
entire EXTRA_LIBS macro is being appended to the objects list, but
this is a hack. We should either revamp the APACHE_CHECK_SSL_TOOLKIT
autoconf function or come up with some other autoconf checks to
search for libssl and libcrypto and properly add them to mod_ssl's
link flags.
* SSL renegotiations in combination with POST request
* Port or dispose all code inside #if 0...#endif blocks that remain
from the porting effort.
* Do we need SSL_set_read_ahead()?
* the ssl_expr api is NOT THREAD SAFE. race conditions exist:
-in ssl_expr_comp() if SSLRequire is used in .htaccess
(ssl_expr_info is global)
-is ssl_expr_eval() if there is an error
(ssl_expr_error is global)
* SSLRequire directive (parsing of) leaks memory
* Diffie-Hellman-Parameters for temporary keys are hardcoded in
ssl_engine_dh.c, while the comment in ssl_engine_kernel.c says:
"it is suggested that keys be changed daily or every 500
transactions, and more often if possible."
* ssl_var_lookup could be rewritten to be MUCH faster
* CRL callback should be pluggable
* session cache store should be pluggable
* init functions should return status code rather than ssl_die()
* ssl_engine_pphrase.c needs to be reworked so it is generic enough
to also decrypt proxy keys
* the shmcb code should just align its memory segment rather than
jumping through all the "safe" memcpy and memset hoops
EXPERIMENTAL MODULES:
Experimental modules should eventually be be promoted to fully supported
status or removed from the repository entirely (ie, the 'experiment'
failed). This section tracks what needs to happen to get the modules
promoted to fully supported status.
mod_cache/mod_mem_cache/mod_disk_cache:
* mod_cache: handle cache_control: no_cache "field_name" to enable
cacheing the response w/o header "field_name"
See RFC2616 section 14.9.1
* mod_cache: CacheEnable/CacheDisable should accept regular expressions.
* mod_cache: Fix dependency on ATOMIC operators. Need
APR_HAS_ATOMIC_* feature macros.
* mod_disk_cache: Implement garbage collection
* mod_mem_cache/mod_disk_cache: Need to be able to query cache
status (num of entries, cache object properties, etc.).
mod_status could be extended to query optional hooks defined
by modules for the purpose of reporting module status.
mod_cache (et. al.) could define optional hooks that are called
to collect status. Status should be queryable by
HTTP or SNMP?
* Enable mod_cache/mod_mem_cache/mod_disk_cache to handle
multiviews
* mod_mem_cache/mod_disk_cache: Complete implementing config
directives (mod_disk_cache: CacheExpiryCheck and GC directives
including CacheGc*, CacheSize, and, CacheTimeMargin)
(mod_mem_cache: MCacheMaxObjectCount) and
(mod_cache: CacheForceCompletion).
* Fix RFC 2616 compliance issues. Including PRs: 15852, 15866,
15868, 15869, 15870, 16133, 16135, 16136, 16521, 19441.
mod_auth_ldap/util_ldap:
* General stabilization and testing
* Fix the shared memory cache
PRs that have been suspended forever waiting for someone to
put them into 'the next release':
* documentation and Q&A
PR#2221: Make online documentation search link back to my installation
Status:
PR#2906: Propose that Apache recommend $UNIQUE_ID for all "session id"
algorithms
Status:
PR#2793: When will Apache support P3P? Any Plans?
Status:
* build
PR#2113: HTTP Server Rebuild Line Needs Changing for the better
Status:
PR#2421: problem specifying ndbm library for build ?with autoconfigure
Status:
* config
PR#76: missing call to "setlocale();"
Status:
PR#628: Request of "Options SymLinksIfGroupMatch"
Status:
PR#793: RLimitCPU and RLimitMEM don't apply to all children like they should
Status:
PR#922: it is useful to allow specifiction that root-owned symlinks
should always be followed
Status:
PR#1028: DoS attacks involving memory consumption
Status:
PR#1191: setlogin() is not called, causing problems with e.g. identd
Status:
PR#1204: regerror() exists, use it
Status:
PR#2284: Can not POST to ErrorDocument - Apache/1.3b6
Status:
PR#2396: Proposal for TimeZone directive
Status:
PR#2446: AllowOverride FileInfo is too coarse
Status:
PR#2760: [PATCH] User/Group for <Directory> and <Location> i.e. not only
in global and <Virtual>.
Status:
PR#2907: suggestion: power up your Include directive :)
Status:
PR#3018: cannot limit some HTTP methods
Status:
PR#3677: New ErrorDocumentMatch directive
Status:
PR#4244: "Files" and "FilesMatch" regexp does not recognize bang as
negation operator
Status:
PR#5993: AllowOverride should have a 'CheckNone' and 'AllowNone' argument
instead of only 'None'
Status:
* mod_access
PR#537: mod_access syntax allows hosts that should be restricted
Status:
PR#1287: add allow,deny/deny,allow warning to mod_access
Status:
PR#2512: <IfDenied> directive wanted
Status:
* mod_auth-any
PR#557: ~UserHome directories are not honored in absolute pathname
requests (.htaccess)
Status:
PR#1117: Using NIS passwd.byname dbm files with AuthDBMUserFile
Status:
PR#1809: Suggestion for improving authentication modules and core source
code, problem with 401 and ErrorDocument
Status:
* mod_autoindex
PR#1263: Add frame-safe anchor attribute to mod_autoindex links
Status:
* mod_cgi (and suexec)
PR#921: suexec Uses cwd before filling it in, doesn't use syslog
Status:
PR#1176: Apache cannot handle continuation line in headers
Status:
PR#1120: suexec does not parse arguments to #exec cmd
Status:
PR#1268: CGI scripts running as Apache user: security (suexec etc.)
Status:
PR#1285: Error messages could be easier to spot in cgi.log file for suexec.c
Status:
PR#1905: suexec - Allow modules to set user:group for execution.
Status:
PR#2360: suexec for general access of user content?
Status:
PR#2460: TimeOut applies to output of CGI scripts
Status:
PR#2573: CGI's for general use still have to be run as another user
with suExec
Status:
PR#4241: Need to be able to override shebang line to make CGI scripts
more portable.
Status:
PR#4490: mod_cgi prevents handling of OPTIONS requests
Status:
* mod_env
PR#370: Modified PATH environemnt variable is not passed, instead
system's is used
Status:
* mod_headers
PR#1383: I make mod_headers to modify request headers as well as
response ones.
Status:
PR#1677: mod_headers should allow mod_log_config-style formats in
header values
Status:
* mod_imap
PR#759: imap should read <MAP><AREA>*</MAP> too!
Status:
* mod_include
PR#78: Additional status for XBitHack directive
Status:
PR#623: A smarter "Last Modified" value for SSI documents (see PR number 600)
Status:
PR#1145: mod_include
Allow for Last-Modified: without resorting to XBitHack
Status:
PR#1803: patches to mod_include to allow for file tests
Status:
PR#4459: Suggestion for better handling of Last-modified headers
Status:
* mod_info
PR#2415: /server-info doesn't check for the virtual host to list the info
Status:
* mod_log-any
PR#1050: Logging of virtual server to error_log as well
Status:
PR#1358: Selective url-encode of log fields (or maybe a pseudo
log_rewrite module?)
Status:
PR#2073: pipelined connections are not logged correctly
Status:
PR#4448: Please allow CGI env variables (QUERY_STRING, ...) to be logged
with %{}e
Status:
* mod_negotiation
PR#3191: no way to set global quality-of-source (qs) coneg values
with multiviews
Status:
* mod_proxy
PR#362: Mod_proxy doesn't allow change of error pages
Status:
PR#440: Proxy doesn't deliver documents if not connected
Status:
PR#534: proxy converts ~name to %7Ename when name starts with a dot (.)
Status:
PR#612: Proxy FTP Authentication Fails
Status:
PR#700: Proxy doesn't do links right for OpenVMS files through ftp:
Status:
PR#980: Controlling Access to Remote Proxies would be nice...
Status:
PR#994: Adding authentication "on the fly" through the proxy module
Status:
PR#1085: ProxyRemote make a dead cycle.
Status:
PR#1166: ``nph-'' not honored (no buffering) for ProxyRemote mapping
Status:
PR#1290: Need to know "hit-rate" on proxy cache
Status:
PR#1532: Proxy transfer logging
Status:
PR#1547: No HTTP_X_FORWARDED_FOR set...
Status:
PR#1567: ProxyRemote proxy requests fail authentication by firewall
Status:
PR#1702: mod_proxy to support persistent conns?
Status:
PR#1878: listing of proxy cache content
Status:
PR#2314: patterns in ProxyRemote
Status:
PR#2648: Cache file names in Proxy module
Status:
PR#3568: Accessing URL through proxy server corrupts data.
Status:
PR#3605: Some anonymous FTP URLs ask for authentication
Status:
* mod_rewrite
PR#1582: mod_rewrite forms REQUEST_URI different than mod_cgi does
Status:
PR#2074: mod_rewrite doesn't pass Proxy Throughput on internal subrequests
Status:
* mod_status
PR#2138: mod_status always displays 256 possible connection slots
Status:
PR#2343: Status module averages are for entire uptime
Status:
* apache-api
PR#1004: request_config field in request_rec is moderately bogus
Status:
PR#1158: improvements to child spawning API
Status:
PR#1233: there is no way to keep per-connection per-module state
Status:
PR#2024: adding auth_why to conn_rec
Status:
PR#2873: Feedback/Comment on APACI
Status:
PR#3143: No module specific data hook for per-connection data
Status:
* generally odds and ends
PR#2431: A small addition to rotatelogs.c to improve program functionality.
Status:
PR#2763: mailto tags and bundling bug report script
Status:
PR#2785: os-aix Support for System Resource Controller
Status:
PR#2889: Inclusion of RPM spec file in CVS/distributions
Status:
PR#5713: os-windows [PATCH] install as win32 service with domain account
Status: Cannot accept password-as-arg, we should prompt the
user when -k install/-k config with a user argument.
Other bugs that need fixing:
* ap_discard_request should be converted to use the bucket API
directly rather than waste cycles copying buffers with the old API.
* MaxRequestsPerChild measures connections, not requests.
Until someone has a better way, we'll probably just rename it
"MaxConnectionsPerChild".
* Regex containers don't work in an intutive way
Status: No one has come up with an efficient way to fix this
behavior. Dean has suggested getting rid of regex containers
completely.
OtherBill suggests: We at least seem to agree on eliminating
the <Container ~ foo> forms, and using only
<ContainerMatch foo> semantics.
* SIGSEGV on Linux (glibc 2.1.2) isn't caught properly by a
sigwaiting thread. We need to work around this, perhaps unless
there is hope soon for a fixed glibc.
* orig_ct in the byterange/multipart handling may not be
needed. Apache 1.3 just never stashed "multipart" into
r->content_type. We should probably follow suit since the
byterange stuff doesn't want the rest of the code to see the
multipart content-type; the other code should still think it is
dealing with the <orig_ct> stuff.
Status: Greg volunteers to investigate (esp. since he was most
likely the one to break it :-)
Binaries (2.0.50):
Platform Avail. Volunteer
------------------------------------------------------------------
AIX 4.3.3 no Bill Stoddard
Mandrake 8.1 no open
FreeBSD 4.1 no open
hppa2.0w-hp-hpux11.00 no Cliff Woolley
i386-pc-solaris2.9 yes Aaron Bannert
i386-unknown-freebsd4.5 no
i386-unknown-freebsd4.6 no Cliff Woolley
i386-unknown-freebsd4.10 yes Aaron Bannert
i686-pc-linux-gnu-slackware81 no Cliff Woolley
i686-pc-linux-gnu-rh70 no Aaron Bannert
i686-pc-linux-gnu-rh73 no Cliff Woolley
i686-pc-linux-gnu yes Graham Leggett
ia64-hp-hpux11.20 no
powerpc-apple-darwin7.4.0 yes Aaron Bannert
powerpc-unknown-linux-gnu yes Graham Leggett
s390-ibm-linux no Greg Ames
sparc-sun-solaris2.8 no Jim Jagielski
NetWare yes Brad Nicholes
OS/2 no Brian Havard
OS/390 no Greg Ames
Win32-x86 yes William Rowe
x86_64-unknown-linux-gnu no Aaron Bannert
