user/dev discussion of public-inbox itself
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#!perl -w
# Copyright (C) 2020 all contributors <meta@public-inbox.org>
# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
use strict;
use v5.10.1;
use Test::More;
use PublicInbox::TestCommon;
use PublicInbox::Eml;
use Fcntl qw(SEEK_SET);
require_mods(qw(DBD::SQLite));
use_ok 'PublicInbox::LeiToMail';
my $from = "Content-Length: 10\nSubject: x\n\nFrom hell\n";
my $noeol = "Subject: x\n\nFrom hell";
my $crlf = $noeol;
$crlf =~ s/\n/\r\n/g;
my $kw = [qw(seen answered flagged)];
for my $mbox (qw(mboxrd mboxo mboxcl mboxcl2)) {
	my $m = "eml2$mbox";
	my $cb = PublicInbox::LeiToMail->can($m);
	my $s = $cb->(PublicInbox::Eml->new($from), $kw);
	is(substr($$s, -1, 1), "\n", "trailing LF in normal $mbox");
	my $eml = PublicInbox::Eml->new($s);
	is($eml->header('Status'), 'R', "Status: set by $m");
	is($eml->header('X-Status'), 'AF', "X-Status: set by $m");
	if ($mbox eq 'mboxcl2') {
		like($eml->body_raw, qr/^From /, "From not escaped $m");
	} else {
		like($eml->body_raw, qr/^>From /, "From escaped once by $m");
	}
	my @cl = $eml->header('Content-Length');
	if ($mbox =~ /mboxcl/) {
		is(scalar(@cl), 1, "$m only has one Content-Length header");
		is($cl[0] + length("\n"),
			length($eml->body_raw), "$m Content-Length matches");
	} else {
		is(scalar(@cl), 0, "$m clobbered Content-Length");
	}
	$s = $cb->(PublicInbox::Eml->new($noeol), $kw);
	is(substr($$s, -1, 1), "\n",
		"trailing LF added by $m when original lacks EOL");
	$eml = PublicInbox::Eml->new($s);
	if ($mbox eq 'mboxcl2') {
		is($eml->body_raw, "From hell\n", "From not escaped by $m");
	} else {
		is($eml->body_raw, ">From hell\n", "From escaped once by $m");
	}
	$s = $cb->(PublicInbox::Eml->new($crlf), $kw);
	is(substr($$s, -2, 2), "\r\n",
		"trailing CRLF added $m by original lacks EOL");
	$eml = PublicInbox::Eml->new($s);
	if ($mbox eq 'mboxcl2') {
		is($eml->body_raw, "From hell\r\n", "From not escaped by $m");
	} else {
		is($eml->body_raw, ">From hell\r\n", "From escaped once by $m");
	}
	if ($mbox =~ /mboxcl/) {
		is($eml->header('Content-Length') + length("\r\n"),
			length($eml->body_raw), "$m Content-Length matches");
	} elsif ($mbox eq 'mboxrd') {
		$s = $cb->($eml, $kw);
		$eml = PublicInbox::Eml->new($s);
		is($eml->body_raw,
			">>From hell\r\n\r\n", "From escaped again by $m");
	}
}

my ($tmpdir, $for_destroy) = tmpdir();
local $ENV{TMPDIR} = $tmpdir;
open my $err, '>>', "$tmpdir/lei.err" or BAIL_OUT $!;
my $lei = { 2 => $err };
my $buf = <<'EOM';
From: x@example.com
Subject: x

blah
EOM
my $fn = "$tmpdir/x.mbox";
my $orig = do {
	my $wcb = PublicInbox::LeiToMail->write_cb("mboxcl2:$fn", $lei);
	is(ref $wcb, 'CODE', 'write_cb returned callback');
	ok(-f $fn && !-s _, 'empty file created');
	$wcb->(\(my $dup = $buf), 'deadbeef', [ qw(seen) ]);
	undef $wcb;
	open my $fh, '<', $fn or BAIL_OUT $!;
	my $raw = do { local $/; <$fh> };
	like($raw, qr/^blah\n/sm, 'wrote content');
	unlink $fn or BAIL_OUT $!;

	local $lei->{opt} = { jobs => 2 };
	$wcb = PublicInbox::LeiToMail->write_cb("mboxcl2:$fn", $lei);
	$lei->{dedupe}->prepare_dedupe;
	$wcb->(\($dup = $buf), 'deadbeef', [ qw(seen) ]);
	undef $wcb;
	open $fh, '<', $fn or BAIL_OUT $!;
	is($raw, do { local $/; <$fh> }, 'jobs > 1');
	$raw;
};
for my $zsfx (qw(gz bz2 xz)) { # XXX should we support zst, zz, lzo, lzma?
	my $zsfx2cmd = PublicInbox::LeiToMail->can('zsfx2cmd');
	SKIP: {
		my $cmd = eval { $zsfx2cmd->($zsfx, 0, $lei) };
		skip $@, 3 if $@;
		my $dc_cmd = eval { $zsfx2cmd->($zsfx, 1, $lei) };
		ok($dc_cmd, "decompressor for .$zsfx");
		my $f = "$fn.$zsfx";
		my $dst = "mboxcl2:$f";
		my $wcb = PublicInbox::LeiToMail->write_cb($dst, $lei);
		$wcb->(\(my $dup = $buf), 'deadbeef', [ qw(seen) ]);
		undef $wcb;
		my $uncompressed = xqx([@$dc_cmd, $f]);
		is($uncompressed, $orig, "$zsfx works unlocked");

		local $lei->{opt} = { jobs => 2 }; # for atomic writes
		unlink $f or BAIL_OUT "unlink $!";
		$wcb = PublicInbox::LeiToMail->write_cb($dst, $lei);
		$lei->{dedupe}->prepare_dedupe;
		$wcb->(\($dup = $buf), 'deadbeef', [ qw(seen) ]);
		undef $wcb;
		is(xqx([@$dc_cmd, $f]), $orig, "$zsfx matches with lock");
	}
}

unlink $fn or BAIL_OUT $!;
require PublicInbox::MboxReader;
if ('default deduplication uses content_hash') {
	my $wcb = PublicInbox::LeiToMail->write_cb("mboxo:$fn", $lei);
	$wcb->(\(my $x = $buf), 'deadbeef', []) for (1..2);
	undef $wcb; # undef to commit changes
	my $cmp = '';
	open my $fh, '<', $fn or BAIL_OUT $!;
	PublicInbox::MboxReader->mboxo($fh, sub { $cmp .= shift->as_string });
	is($cmp, $buf, 'only one message written');
}

{ # stdout support
	open my $tmp, '+>', undef or BAIL_OUT $!;
	local $lei->{1} = $tmp;
	my $wcb = PublicInbox::LeiToMail->write_cb("mboxrd:/dev/stdout", $lei);
	$wcb->(\(my $x = $buf), 'deadbeef', []);
	undef $wcb; # commit
	seek($tmp, 0, SEEK_SET) or BAIL_OUT $!;
	my $cmp = '';
	PublicInbox::MboxReader->mboxrd($tmp, sub { $cmp .= shift->as_string });
	is($cmp, $buf, 'message written to stdout');
}

SKIP: { # FIFO support
	use PublicInbox::Spawn qw(popen_rd which);
	use POSIX qw(mkfifo);
	my $fn = "$tmpdir/fifo";
	mkfifo($fn, 0600) or skip("mkfifo not supported: $!", 1);
	my $cat = popen_rd([which('cat'), $fn]);
	my $wcb = PublicInbox::LeiToMail->write_cb("mboxo:$fn", $lei);
	$wcb->(\(my $x = $buf), 'deadbeef', []);
	undef $wcb; # commit
	my $cmp = '';
	PublicInbox::MboxReader->mboxo($cat, sub { $cmp .= shift->as_string });
	is($cmp, $buf, 'message written to FIFO');
}

done_testing;
debug log:

solving f3cc71ad ...
found f3cc71ad in https://80x24.org/public-inbox.git

user/dev discussion of public-inbox itself

This inbox may be cloned and mirrored by anyone:

	git clone --mirror https://public-inbox.org/meta
	git clone --mirror http://czquwvybam4bgbro.onion/meta
	git clone --mirror http://hjrcffqmbrq6wope.onion/meta
	git clone --mirror http://ou63pmih66umazou.onion/meta

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V1 meta meta/ https://public-inbox.org/meta \
		meta@public-inbox.org
	public-inbox-index meta

Example config snippet for mirrors.
Newsgroups are available over NNTP:
	nntp://news.public-inbox.org/inbox.comp.mail.public-inbox.meta
	nntp://ou63pmih66umazou.onion/inbox.comp.mail.public-inbox.meta
	nntp://czquwvybam4bgbro.onion/inbox.comp.mail.public-inbox.meta
	nntp://hjrcffqmbrq6wope.onion/inbox.comp.mail.public-inbox.meta
	nntp://news.gmane.io/gmane.mail.public-inbox.general
 note: .onion URLs require Tor: https://www.torproject.org/

code repositories for the project(s) associated with this inbox:

	https://80x24.org/public-inbox.git

AGPL code for this site: git clone https://public-inbox.org/public-inbox.git