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2019-10-17doc: avoid [<directory>] arg for git-clone(1)
While it is possible to host source code from the root of a URL using git-http-backend(1), the lack of pathname in the URL can also be confusing to users. So just add the path name of the project into the URL itself so users can invoke "git clone" with one command-line argument instead of two. Of course, previously documented URLs continue to work as normal.
2019-10-16Merge branch 'listid'
* listid: wwwtext: show listid config directive(s) mda, watch: wire up List-ID header support config: allow "0" as a valid mainrepo path config: avoid unnecessary '||' use config: simplify lookup* methods config: we always have {-section_order} Config.pm: Add support for mailing list information
2019-10-16admin: show failing directory
Since public-inbox-index may be run against a large list of (intended) inboxes from the command-line, it's helpful to show which directory fails the resolution.
2019-10-15wwwtext: show listid config directive(s)
We want to share this piece for potential mirror-ers just like watchheader.
2019-10-15mda, watch: wire up List-ID header support
This also adds watchheader tests for -watch, which we never had before :x
2019-10-15config: allow "0" as a valid mainrepo path
It's probably wrong to use relative path names, but things are all relative these days anyways with shared and networked FSes.
2019-10-15config: avoid unnecessary '||' use
'//' is available in Perl 5.10+ which allows `0' and `""' (empty string) to remain unclobbered. We also don't need '||=' for initializing our internal caches.
2019-10-15config: simplify lookup* methods
This ensures we always process inboxes in section order and reduces the amount of code we have to maintain for each lookup. Avoiding the cost of inboxes object creation is not worth the code overhead; and we can implement a config cache via Storable easily for large configs and -mda users.
2019-10-15config: we always have {-section_order}
Rewrite a bunch of tests to use ordered input (emulating "git config -l" output) so we can always walk sections in the order they were given in the config file.
2019-10-15Config.pm: Add support for mailing list information
The world has turned since I first started following mailing lists and to my surprise every mailing list that I am subscribed to properly sets the "List-ID:" mailing list header. So instead of doing something clever and flexible I am adding support for looking up public inbox mailing lists by their mailing list name. That makes the work needed for each email trivial and easy to understand. - Parse the "List-ID:" header. - Lookup in the configuration which mailbox is connected to that "List-ID:" - Deliver the mail to that mailbox. To that end this change enhances PublicInbox to have an additional mailbox configuration parameter "listid" that holds the mailing list name. A method is added to the PublicInbox config object called lookup_list_id that given a mailing list name will return the PublicInbox in the configuration that is configured to handle that mailing list. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> [ew: avoid autovivification of $ibx->{listid} for t/config.t]
2019-10-15PublicInbox::Import Smuggle a raw message into add
I don't trust the MIME type to not munge my email messages in horrible ways upon occasion. Therefore allow for passing in the raw message value instead of trusting the mime object to preserve it. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> [ew: use "//" from Perl 5.10+ for defined check]
2019-10-09doc: PublicInbox::SaPlugin::ListMirror manpage
This is a plugin for SpamAssassin that happens to be quite useful in keeping spam off lists I mirror. Hopefully more people can find it useful now that it has a manpage.
2019-10-09extmsg: drop unused $have_mm variable
We rely on Inbox::mm nowadays.
2019-10-02listener: warn on some accept()/accept4() errors
We need to warn when hitting file or socket memory limits or misconfigurations which clear O_NONBLOCK to make it easier to diagnose configuration problems. We'll also warn on some other errors in case bugs creep in...
2019-10-01www: fix absolute URLs when mounted under a subdir
While we avoid generating absolute URLs in most cases, our "git clone" instructions and URL headers in mboxrd files contain full URLs. So do the same thing we do for WwwAtomStream and pre-generate the full URL before Plack::App::URLMap changes $env->{PATH_INFO} and $env->{SCRIPT_NAME} back to their original values. Reported-by: edef <edef@edef.eu> Link: https://public-inbox.org/meta/cover.0f97c47bb88db8b875be7497289d8fedd3b11991.1569296942.git-series.edef@edef.eu/
2019-09-30config: use NUL-delimited git-config(1) output
This allows us to deal with newlines in config values, since git-config(1) acquired "-z" support in git v1.5.3. I'm not sure if it's actually useful in our case, but maybe some multi-line texts could be added. And newlines in path names are super useful!
2019-09-27qspawn: workaround Perl 5.16.3 leak, re-enable Deflater
The httpd-supplied write callback is the leak culprit under Perl 5.16.3. undef-ing it immediately after use keeps a repeated "git fetch" loop from monotonically increasing memory and FD use on the Perl shipped with RHEL/CentOS 7.x. Other endpoints tested showed no increase in memory use under constant load with "ab -HAccept-Encoding:gzip -k", including the async psgi_qx code path used by $INBOX_URL/$OBJECT_ID/s/ via SolverGit module.
2019-09-27wwwtext: support $INBOX_URL/_/text/config/raw
This returns a git-config(1)-compatible file to make it easier to get started on mirroring an existing public-inbox. Omitting the "raw" from the URL works, as well, but I'm not sure if it's very useful.
2019-09-27v2writable: only change $EPOCH.git/config on epoch creation
We don't need to make unnecesary writes to the git config file and wear out storage devices every time we run "public-inbox-index"
2019-09-27mbox: update URL for mboxrd info
qmail.org seems unavailable.
2019-09-26hlmod: update for highlight 3.51 API change
Quoting Amitai Schleier, who made this same change in ikiwiki[1], where lots of the public-inbox highlight code comes from: > As of 3.51, searchFile() is no longer provided in highlight's Perl > bindings (at least on NetBSD and OS X, as built from pkgsrc). This > leaves us falling through to getConfDir(), which has been gone > rather longer. > > From highlight git, it appears searchFile() and getFiletypesConfPath() > both originated in the 3.14 release. The latter is still available in > 3.51, and returns the same result searchFile() used to. Switch to it. So, this should still be compatible with the version of highlight.pm in Debian, but add support for newer versions as well. [1]: commit 4d06df9583e6c4145f8c6fc2fd51d7894c0b85ce Cc: Amitai Schleier <schmonz-web-ikiwiki@schmonz.com>
2019-09-26ds: workaround a memory leak in Perl 5.16.x
The perl-5.16.3-294.el7_6 RPM package on RHEL/CentOS 7 is affected by a memory leak in Perl when calling `ref' on blessed references. This resulted in a very slow leak that manifests more quickly with a nonstop "git fetch" loop. Use Scalar::Util::blessed to work around the issue. Tested overnight on a CentOS 7 VM. cf. https://rt.perl.org/Public/Bug/Display.html?id=114340
2019-09-24spawnpp: use absolute path for exec
We support "-env" to clear the environment with spawn(), which causes test failures but no runtime failures (since "-env" isn't used anywhere in our real code) Reported-and-tested-by: Alyssa Ross <hi@alyssa.is>
2019-09-22feed: remove unused $cmt->{-html_url} field
It was never used, and will not be needed.
2019-09-20wwwatomstream: fix per-feed <id>
We were emitting the same "<id>mailto:name@domain</id>" tag for every feed (but not per-feed entry). This could cause feed readers to mistake the top (news.atom) feed for other feeds (search results, or per-thread feeds). This is technically a breaking change for people relying on per-thread or per-query feeds, but the only alternative is to remain broken for anybody trying to follow multiple feeds off the same inbox.
2019-09-18config: boolean handling matches git-config(1)
We need to handle arbitrary integers and case-insensitive variations of human words to match git-config(1) behavior, since that's what users would expect given we use config files parseable by git-config(1).
2019-09-17http: remove unnecessary delete
Only removing $http->{env} is needed to prevent circular references. $env->{'psgix.io'} does not need to be deleted since $env will no longer have any references to it when ->close returns.
2019-09-17http: drop unused `$env' variable after delete
And explain why we need to do that delete in a comment.
2019-09-17qspawn: improve variable naming and commenting
Naming $start_cb consistently helps avoid confusing new readers, and some comments will help with understanding flow
2019-09-17qspawn: shorten lifetime of circular references
All of these circular references are designed to clear themselves, but these will make actual errors from Devel::Cycle easier-to-spot. The circular reference in the limiter {run_queue} is not a real problem, but we can avoid storing the circular reference until we actually need to spawn the child, reducing the size of the Qspawn object while it's in the queue, slightly. We also do not need to have redundant checks to spawn new processes, we should only spawn new processes when they're ->start-ed or after waitpid reaps them.
2019-09-17qspawn: log errors for generic PSGI server users
Generic PSGI servers have $env->{'psgi.errors'}, too, so ensure they can log errors.
2019-09-17qspawn: remove return value from ->finish
We don't use the return value in real code since we do waitpid asynchronously, now. So simplify our runtime code at the cost of making our test slighly more complex.
2019-09-15qspawn: shorten lifetime of environ and opts args
We don't need to hold onto the subprocess environ and redirects/options for popen_rd after spawning the child process. I do not expect this to fix problem of leaking unlinked regular file descriptors (which I still can't reproduce), and it definitely does not fix the problem of leaking pipe descriptors (which I also can't reproduce). This will save an FD sooner on non-public-inbox-httpd servers which give a non-FD $env->{'psgi.input'}, however Regardless, it's good to free up memory resources in our own process ASAP we're done using them.
2019-09-15qspawn: clarify and improve error handling
EINTR should not happen when using non-blocking sockets like we do in our daemons, but maybe some OSes allow it to happen and edge-triggered notifications won't notify us again. So always retry immediately on EINTR without relying on kqueue or epoll to notify us, and log any other unrecoverable errors which may happen while we're at it.
2019-09-14qspawn: remove unused WNOHANG import
We rely on DS to do waitpid with WNOHANG, now, and the non-DS code path won't use WNOHANG.
2019-09-14httpd/async: improve naming and comments
Rename the {cleanup} field to {end}, since it's similar to END {} and is consistent with the variable in Qspawn.pm And document how certain subs get called, since we have many subs named "new" and "close".
2019-09-14githttpbackend: use REMOTE_ADDR for deleted identifier
REMOTE_HOST is not set by us (it is the reverse DNS name) of REMOTE_ADDR, and there's few better ways to kill HTTP server performance than to use standard name resolution APIs like getnameinfo(3).
2019-09-14tmpfile: support O_APPEND and use it in DS::tmpio
Might as well share some code for temporary file creation
2019-09-14tmpfile: give temporary files meaningful names
Although we always unlink temporary files, give them a meaningful name so that we can we can still make sense of the pre-unlink name when using lsof(8) or similar tools on Linux.
2019-09-14qspawn: simplify by using PerlIO::scalar
I didn't know PerlIO::scalar existed until a few months ago, but it's been distributed with Perl since 5.8 and doesn't seem to be split out into it's own package on any distro.
2019-09-14admin: warn and ignore inaccessible inboxes
For whatever reason, inbox directories can go missing temporarily or permanently. Tell the admin about them and continue on our way.
2019-09-12solvergit: don't drop update-index stdin with qspawn
It's possible for Qspawn callers to be deferred, in which case we must ensure we don't cause the temporary file used for stdin to become unref-ed and closed. This can be a problem when we exceed the default Qspawn limiter of 32 concurrent processes for "git update-index".
2019-09-09run update-copyrights from gnulib for 2019
2019-09-08nntp: regexp always consumes rbuf if "\n" exists
We don't want to get hung into a state where we see "\n" via index(), yet cannot consume rbuf in the while loop. So tweak the regexp to ensure we always consume rbuf. I suspect this is what causes occasional 100% CPU usage of -nntpd, but reproducing it's been difficult..
2019-09-08nntp: fix redundant CRLF from "LISTGROUP GROUP RANGE"
Since Net::NNTP::listgroup doesn't support the range parameter, I had to test this manually and noticed extra CRLF were emitted.
2019-07-14nntpdeflate: reduce overhead of idle clients
We don't need to keep an empty buffer around in the common case when a client is sending us completely inflatable requests and we're able to read them in one go. This only seems to save about 2M with 10K NNTPS clients using COMPRESS, so it's not a huge win, but better than nothing.
2019-07-13nntp: support optional [range] arg in LISTGROUP
RFC3977 6.1.2.2 LISTGROUP allows a [range] arg after [group], and supporting it allows NNTP support in neomutt to work again. Tested with NeoMutt 20170113 (1.7.2) on Debian stretch (oldstable)
2019-07-13nntp: fix LIST OVERVIEW.FMT ordering and format
RFC3977 8.4.2 mandates the order of non-standard headers to be after the first seven standard headers/metadata; so "Xref:" must appear after "Lines:"|":lines". Additionally, non-required header names must be followed by ":full". Cc: Jonathan Corbet <corbet@lwn.net> Reported-by: Urs Janßen <E1hmKBw-0008Bq-8t@akw>
2019-07-13nntpdeflate: stop relying on SUPER for ->do_read
We won't need further layering after enabling compression. So be explicit about which sub we're calling when we hit ->do_read from NNTP and eliminate the need for the comment.
2019-07-12nntp: clear local timer on idle client expiry
We need to ensure further timers can be registered if there's currently no idle clients.