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IO::Socket:*->new options are verbose and we can save
a bunch of code by putting this into t/common.perl,
since the related spawn_listener stuff is already there.
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20190431 isn't real, NNTP.pm failed to parse it when our
test client sent it.
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Perl prior to 5.22 did not bundle a Net::NNTP (or libnet)
capable of handling TLS.
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It's barely any effort at all to support HTTPS now that we have
NNTPS support and can share all the code for writing daemons.
However, we still depend on Varnish to avoid hug-of-death
situations, so supporting reverse-proxying will be required.
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We need to ensure we run lsof on the sleep(1) process, and not
the fork of ourselves before execve(2). This race applies when
we're using the default pure-Perl spawn() implementation.
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On Linux systems with epoll support, we don't want to be
clobbering defined subs in the t/ds-poll.t test; so use
OO ->method dispatch instead and require users to explicitly
import subs via EXPORT_OK.
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* origin/nntp-tls: (59 commits)
ds: ->write must not clobber empty wbuf array
Makefile: skip DSKQXS in global syntax check
ds: reduce overhead of tempfile creation
Revert "ci: require IO::KQueue on FreeBSD, for now"
ds: reimplement IO::Poll support to look like epoll
ds: split out IO::KQueue-specific code
daemon: use FreeBSD accept filters on non-NNTP
daemon: set TCP_DEFER_ACCEPT on everything but NNTP
nntp: send greeting immediately for plain sockets
ci: require IO::KQueue on FreeBSD, for now
nntp: lazily allocate and stash rbuf
ds: flush_write runs ->write callbacks even if closed
nntp: simplify long response logic and fix nesting
ds: always use EV_ADD with EV_SET
nntp: reduce allocations for greeting
ds: allow ->write callbacks to syswrite directly
daemon: use SSL_MODE_RELEASE_BUFFERS
t/nntpd-tls: slow client connection test
nntp: call SSL_shutdown in normal cases
ds|nntp: use CORE::close on socket
...
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"INSERT OR IGNORE" still bumps the auto-increment counter in
SQLite, which causes gaps to appear in NNTP article numbering.
This bug appeared in v2 repos where V2Writable may call ->add
repeatedly on the same message. This bug is apparent with
public-inbox-watch and work-in-progress IMAP watchers which may
rescan and (attempt to) reinsert the same message on mailbox
changes.
Most uses of public-inbox-mda were not affected, unless the
same message is actually delivered multiple times to the mda.
v1 is not affected, either, since deduplication is only based
on Message-ID and msgmap never sees the duplicate.
Reported-by: "Eric W. Biederman" <ebiederm@xmission.com>
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At least the subset of epoll we use. EPOLLET might be
difficult to emulate if we end up using it.
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Similar to TCP_DEFER_ACCEPT on Linux, FreeBSD has a 'dataready'
accept filter which we can use to reduce wakeups when doing
TLS negotiation or plain HTTP. There's also a 'httpready'
which we can use for plain HTTP connections.
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This Linux-specific option can save us some wakeups during
the TLS negotiation phase, and it can help with ordinary HTTP,
too.
Plain NNTP (and in the future, POP3) are the only things which
require the server send messages, first.
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We need to ensure slowly negotiating TLS clients don't block
the event loop. This is why I added the size check of
{wbuf} before and after calling the CODE ref in DS::flush_write.
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This is in accordance with TLS standards and will be needed
to support session caching/reuse in the future. However, we
don't issue shutdown(2) since we know not to inadvertantly
share our sockets with other processes.
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IO::Socket::SSL will try to re-bless back to the original class
on TLS negotiation failure. Unfortunately, the original class
is 'GLOB', and re-blessing to 'GLOB' takes away all the IO::Handle
methods, because Filehandle/IO are a special case in Perl5.
Anyways, since we already use syswrite() and sysread() as functions
on our socket, we might as well use CORE::close(), as well (and
it plays nicely with tied classes).
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It kinda, barely works, and I'm most happy I got it working
without any modifications to the main NNTP::event_step callback
thanks to the DS->write(CODE) support we inherited from
Danga::Socket.
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Instead, the O_NONBLOCK flag is set by PublicInbox::HTTPD::Async;
and we won't be setting it elsewhere.
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The default $GIT_DIR/description (provided by git.git templates)
isn't very useful for v2 epochs, so use the inbox description
and suffix it with the epoch number if it's otherwise unnamed.
Requested-by: Konstantin Ryabitsev <konstantin@linuxfoundation.org>
https://public-inbox.org/meta/20190620190017.GA27175@chatter.i7.local/
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It never has, AFAIK, but I'm making some changes to this code in
another branch and nearly introduced a bug where it would be
overreading and discarding the pipelined request.
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Plack is for Perl, Rack is for Ruby; this a Perl project :x
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* origin/newspeak:
comments: replace "partition" with "shard"
t/xcpdb-reshard: use 'shard' term in local variables
xapcmd: favor 'shard' over 'part' in local variables
search: use "shard" for local variable
v2writable: use "epoch" consistently when referring to git repos
adminedit: "part" => "shard" for local variables
v2writable: rename local vars to match Xapian terminology
v2writable: avoid "part" in internal subs and fields
search*: rename {partition} => {shard}
xapcmd: update comments referencing "partitions"
v2: rename SearchIdxPart => SearchIdxShard
inboxwritable: s/partitions/shards/ in local var
tests: change messages to use "shard" instead of partition
v2writable: rename {partitions} field to {shards}
v2writable: count_partitions => count_shards
searchidxpart: start using "shard" in user-visible places
rename reference to git epochs as "partitions"
admin|xapcmd: user-facing messages say "shard"
v2writable: update comments regarding xcpdb --reshard
doc: rename our Xapian "partitions" to "shards"
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No point in using lower-level APIs for a PSGI test.
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I could not find a place to put the link the top without
making navigation too cluttered. Putting it at the bottom
of the page seems reasonable...
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I found myself tempted to switch to HTTP::Tiny, here, since
it's distributed with Perl since 5.14, unlike Net::HTTP
(which AFAIK was never a part of Perl proper).
But we really want to use Net::HTTP, here, since it's
lower-level and allows us to trigger server-side buffering
by not reading the entity body.
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Another step in maintaining consistency with Xapian docs.
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Another potentially user-facing piece made consistent with
Xapian terminology.
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Our internal data structure should be consistent with Xapian
terminology.
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Try to remain consistent with our own documentation regarding
v2 git "epochs", first.
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No sense in supporting multiple methods of initialization
for an internal class.
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PublicInbox::Inbox objects have minimal dependencies, so
drop code to support old tests which existed before the
PublicInbox::Inbox object came into existence.
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More testers are likely to have HTTP::Tiny than Net::HTTP, since
HTTP::Tiny is a dual-life module and distributed with Perl since
Perl 5.14 (2011-05-14), whereas Net::HTTP will likely live in
a separate package forever.
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* origin/reshard:
xcpdb: support resharding v2 repos
xcpdb: use destination shard as progress prefix
xapcmd: preserve indexlevel based on the destination
v2writable: use a smaller default for Xapian partitions
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* origin/manifest:
git: ensure ->modified returns an integer
www: support $INBOX/git/$EPOCH.git for v2 cloning
www: wire up /$INBOX/manifest.js.gz, too
wwwlisting: generate grokmirror-compatible manifest.js.gz
wwwlisting: allow hiding entries from manifest
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* origin/edit:
edit: unlink temporary file when done
v2writable: replace: kill git processes before reindexing
edit: drop unwanted headers before noop check
edit|purge: improve output on rewrites
edit: new tool to perform edits
doc: document the --prune option for -index
admin: expose ->config
AdminEdit: move editability checks from -purge
admin: beef up resolve_inboxes to handle purge options
purge: start moving common options to AdminEdit module
admin: remove warning arg for unconfigured inboxes
v2writable: implement ->replace call
import: switch to "replace_oids" interface for purge
import: extract_author_info becomes extract_commit_info
v2writable: consolidate overview and indexing call
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v2 repos are sometimes created on machines where CPU
parallelization exceeds the capability of the storage devices.
In that case, users may reshard the Xapian DB to any smaller,
positive integer to avoid excessive overhead and contention when
bottlenecked by slow storage.
Resharding can also be used to increase shard count after
hardware upgrades.
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We weren't using it, and in retrospect, it makes no sense to use
this API cat_file for giant responses which can't read quickly
with minimal context-switching (or sanely fit into memory for
Email::Simple/Email::MIME).
For giant blobs which we don't want slurped in memory, we'll
spawn a short-lived git-cat-file process like we do in ViewVCS.
Otherwise, monopolizing a git-cat-file process for a giant
blob is harmful to other PSGI/NNTP users.
A better interface is coming which will be more suitable for
for batch processing of "small" objects such as commits and
email blobs.
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It's the unfortunate reality that there are some clients which
reuse Message-IDs (in which we generate + use another) or set
multiple Message-IDs on their own. While the v2 format
addresses that, NNTP clients such as leafnode are not always
prepared to deal with that case.
So, ensure NNTP clients only see a single Message-ID, and
show the others as 'X-Alt-Message-ID'.
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Leafnode cannot handle Message-ID headers which are too long and
require folding via Email::Simple::Header. Since there are
already many of these messages in git with the header already
folded, we need to handle the unfolding when emitting the
message via NNTP.
As far as we know, Leafnode is the only client software
incapable of handling this case.
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And enable strict + warnings in the scope of t/common.perl, too.
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mutt will set Content-Length, Lines, and Status headers
unconditionally, so we need to account for that before
doing header comparisons to avoid making expensive changes
when noop edits are made.
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Fill in undef as "(unchanged)" when displaying commits
and prefix the epoch name.
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We don't want to serialize timestamps as strings to JSON.
I only noticed this bug on a 32-bit system.
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This wrapper around V2Writable->replace provides a user-interface
for editing messages as single-message mboxes (or the raw text
via $EDITOR).
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Much of the existing purge code is repurposed to a general
"replace" functionality.
->purge is simpler because it can just drop the information.
Unlike ->purge, ->replace needs to edit existing git commits (in
case of From: and Subject: headers) and reindex the modified
message.
We currently disallow editing of References:, In-Reply-To: and
Message-ID headers because it can cause bad side effects with
our threading (and our lack of rethreading support to deal with
excessive matching from incorrect/invalid References).
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And use it in manifest.js.
To ease maintaining mirrors with grokmirror(1), we can accept
a "git/" directory prefix before the epoch, and ".git" suffix
after the epoch number.
We maintain compatibility with "$INBOX/$EPOCH" cloning, of
course, and it's still easier-to-type on the command-line.
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I can imagine myself just wanting to clone a single v2 inbox
and all its epochs without thinking about include/exclude
rules in a grokmirror config file.
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Support on-demand generation of "/manifest.js.gz" for inboxes.
By default, this matches inboxes with URLs matching the given
request hostname by default.
This makes it easier to create full mirrors of several inboxes
without needing to configure static file serving.
cf. https://git.kernel.org/pub/scm/utils/grokmirror/grokmirror.git
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The version of Test::More from Perl 5.10.1 did not support
"subtest", and the earliest version which did is Perl 5.12.0
The good news is this gives me an excuse to parallelize
the indexlevels-mirror test by splitting it into two.
(it could be further split, even).
Update t/nntpd. to use PI_TEST_VERSION consistently while
we're at it.
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The "\w" character class in Perl matches any word characters
in the Unicode database, not just ASCII characters. So we
must be prepared for that and generate links to IDNs.
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In case we encounter an odd system which has Search::Xapian
but not DBD::SQLite.
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