-# Copyright (C) 2016-2018 all contributors <meta@public-inbox.org>
+# Copyright (C) 2016-2020 all contributors <meta@public-inbox.org>
# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
#
# git fast-import-based ssoma-mda MDA replacement
-# This is only ever run by public-inbox-mda and public-inbox-learn,
-# not the WWW or NNTP code which only requires read-only access.
+# This is only ever run by public-inbox-mda, public-inbox-learn
+# and public-inbox-watch. Not the WWW or NNTP code which only
+# requires read-only access.
package PublicInbox::Import;
use strict;
-use warnings;
-use base qw(PublicInbox::Lock);
-use PublicInbox::Spawn qw(spawn);
-use PublicInbox::MID qw(mids mid_mime mid2path);
+use parent qw(PublicInbox::Lock);
+use v5.10.1;
+use PublicInbox::Spawn qw(spawn popen_rd);
+use PublicInbox::MID qw(mids mid2path);
use PublicInbox::Address;
-use PublicInbox::MsgTime qw(msg_timestamp msg_datestamp);
-use PublicInbox::ContentId qw(content_digest);
+use PublicInbox::Smsg;
+use PublicInbox::MsgTime qw(msg_datestamp);
+use PublicInbox::ContentHash qw(content_digest);
use PublicInbox::MDA;
+use PublicInbox::Eml;
use POSIX qw(strftime);
sub new {
+ # we can't change arg order, this is documented in POD
+ # and external projects may rely on it:
my ($class, $git, $name, $email, $ibx) = @_;
my $ref = 'refs/heads/master';
if ($ibx) {
- $ref = $ibx->{ref_head} || 'refs/heads/master';
- $name ||= $ibx->{name};
- $email ||= $ibx->{-primary_address};
+ $ref = $ibx->{ref_head} // 'refs/heads/master';
+ $name //= $ibx->{name};
+ $email //= $ibx->{-primary_address};
+ $git //= $ibx->git;
}
bless {
git => $git,
ident => "$name <$email>",
mark => 1,
ref => $ref,
- inbox => $ibx,
+ ibx => $ibx,
path_type => '2/38', # or 'v2'
lock_path => "$git->{git_dir}/ssoma.lock", # v2 changes this
bytes_added => 0,
return ($self->{in}, $self->{out}) if $self->{pid};
- my ($in_r, $in_w, $out_r, $out_w);
- pipe($in_r, $in_w) or die "pipe failed: $!";
+ my (@ret, $out_r, $out_w);
pipe($out_r, $out_w) or die "pipe failed: $!";
- my $git = $self->{git};
$self->lock_acquire;
-
- local $/ = "\n";
- my $ref = $self->{ref};
- chomp($self->{tip} = $git->qx(qw(rev-parse --revs-only), $ref));
- if ($self->{path_type} ne '2/38' && $self->{tip}) {
- local $/ = "\0";
- my @tree = $git->qx(qw(ls-tree -r -z --name-only), $ref);
- chomp @tree;
- $self->{-tree} = { map { $_ => 1 } @tree };
+ eval {
+ my ($git, $ref) = @$self{qw(git ref)};
+ local $/ = "\n";
+ chomp($self->{tip} = $git->qx(qw(rev-parse --revs-only), $ref));
+ if ($self->{path_type} ne '2/38' && $self->{tip}) {
+ local $/ = "\0";
+ my @t = $git->qx(qw(ls-tree -r -z --name-only), $ref);
+ chomp @t;
+ $self->{-tree} = { map { $_ => 1 } @t };
+ }
+ my @cmd = ('git', "--git-dir=$git->{git_dir}",
+ qw(fast-import --quiet --done --date-format=raw));
+ my ($in_r, $pid) = popen_rd(\@cmd, undef, { 0 => $out_r });
+ $out_w->autoflush(1);
+ $self->{in} = $in_r;
+ $self->{out} = $out_w;
+ $self->{pid} = $pid;
+ $self->{nchg} = 0;
+ @ret = ($in_r, $out_w);
+ };
+ if ($@) {
+ $self->lock_release;
+ die $@;
}
-
- my $git_dir = $git->{git_dir};
- my @cmd = ('git', "--git-dir=$git_dir", qw(fast-import
- --quiet --done --date-format=raw));
- my $rdr = { 0 => fileno($out_r), 1 => fileno($in_w) };
- my $pid = spawn(\@cmd, undef, $rdr);
- die "spawn fast-import failed: $!" unless defined $pid;
- $out_w->autoflush(1);
- $self->{in} = $in_r;
- $self->{out} = $out_w;
- $self->{pid} = $pid;
- $self->{nchg} = 0;
- binmode $out_w, ':raw' or die "binmode :raw failed: $!";
- binmode $in_r, ':raw' or die "binmode :raw failed: $!";
- ($in_r, $out_w);
+ @ret;
}
sub wfail () { die "write to fast-import failed: $!" }
local $/ = "\n";
my $info = <$r>;
defined $info or die "EOF from fast-import / cat-blob: $!";
- $info =~ /\A[a-f0-9]{40} blob (\d+)\n\z/ or return;
+ $info =~ /\A[a-f0-9]{40} blob ([0-9]+)\n\z/ or return;
my $left = $1;
my $offset = 0;
my $buf = '';
$info =~ m!\A100644 blob ([a-f0-9]{40})\t!s or die "not blob: $info";
my $oid = $1;
my $msg = _cat_blob($r, $w, $oid) or die "BUG: cat-blob $1 failed";
- my $cur = PublicInbox::MIME->new($msg);
+ my $cur = PublicInbox::Eml->new($msg);
my $cur_s = $cur->header('Subject');
$cur_s = '' unless defined $cur_s;
my $cur_m = $mime->header('Subject');
my ($self, $msg) = @_;
return unless $self->{pid};
print { $self->{out} } "progress $msg\n" or wfail;
- $self->{in}->getline eq "progress $msg\n" or die
+ readline($self->{in}) eq "progress $msg\n" or die
"progress $msg not received\n";
undef;
}
my $env = { GIT_INDEX_FILE => $index };
run_die([@cmd, qw(read-tree -m -v -i), $self->{ref}], $env);
}
- run_die([@cmd, 'update-server-info'], undef);
- ($self->{path_type} eq '2/38') and eval {
- require PublicInbox::SearchIdx;
- my $inbox = $self->{inbox} || $git_dir;
- my $s = PublicInbox::SearchIdx->new($inbox);
- $s->index_sync({ ref => $self->{ref} });
- };
- eval { run_die([@cmd, qw(gc --auto)], undef) } if $do_gc;
+ eval { run_die([@cmd, 'update-server-info']) };
+ my $ibx = $self->{ibx};
+ if ($ibx && $ibx->version == 1 && -d "$ibx->{inboxdir}/public-inbox" &&
+ eval { require PublicInbox::SearchIdx }) {
+ eval {
+ my $s = PublicInbox::SearchIdx->new($ibx);
+ $s->index_sync({ ref => $self->{ref} });
+ };
+ warn "$ibx->{inboxdir} index failed: $@\n" if $@;
+ }
+ eval { run_die([@cmd, qw(gc --auto)]) } if $do_gc;
}
sub barrier {
}
# returns undef on non-existent
-# ('MISMATCH', Email::MIME) on mismatch
-# (:MARK, Email::MIME) on success
+# ('MISMATCH', PublicInbox::Eml) on mismatch
+# (:MARK, PublicInbox::Eml) on success
#
# v2 callers should check with Xapian before calling this as
# it is not idempotent.
sub remove {
- my ($self, $mime, $msg) = @_; # mime = Email::MIME
+ my ($self, $mime, $msg) = @_; # mime = PublicInbox::Eml or Email::MIME
my $path_type = $self->{path_type};
my ($path, $err, $cur, $blob);
}
my $ident = $self->{ident};
my $now = now_raw();
- $msg ||= 'rm';
+ $msg //= 'rm';
my $len = length($msg) + 1;
print $w "commit $ref\nmark :$commit\n",
"author $ident $now\n",
(($self->{tip} = ":$commit"), $cur);
}
-sub git_timestamp {
- my ($ts, $zone) = @_;
+sub git_timestamp ($) {
+ my ($ts, $zone) = @{$_[0]};
$ts = 0 if $ts < 0; # git uses unsigned times
"$ts $zone";
}
-sub extract_author_info ($) {
- my ($mime) = @_;
+sub extract_cmt_info ($;$) {
+ my ($mime, $smsg) = @_;
+ # $mime is PublicInbox::Eml, but remains Email::MIME-compatible
+ $smsg //= bless {}, 'PublicInbox::Smsg';
+
+ $smsg->populate($mime);
my $sender = '';
- my $from = $mime->header('From');
+ my $from = delete($smsg->{From}) // '';
my ($email) = PublicInbox::Address::emails($from);
my ($name) = PublicInbox::Address::names($from);
if (!defined($name) || !defined($email)) {
- $sender = $mime->header('Sender');
- if (!defined($name)) {
- ($name) = PublicInbox::Address::names($sender);
- }
- if (!defined($email)) {
- ($email) = PublicInbox::Address::emails($sender);
- }
+ $sender = $mime->header('Sender') // '';
+ $name //= (PublicInbox::Address::names($sender))[0];
+ $email //= (PublicInbox::Address::emails($sender))[0];
}
if (defined $email) {
+ # Email::Address::XS may leave quoted '<' in addresses,
+ # which git-fast-import doesn't like
+ $email =~ tr/<>//d;
+
# quiet down wide character warnings with utf8::encode
utf8::encode($email);
} else {
$name = '';
warn "no name in From: $from or Sender: $sender\n";
}
- ($name, $email);
+
+ my $subject = delete($smsg->{Subject}) // '(no subject)';
+ utf8::encode($subject);
+ my $at = git_timestamp(delete $smsg->{-ds});
+ my $ct = git_timestamp(delete $smsg->{-ts});
+ ("$name <$email>", $at, $ct, $subject);
}
# kill potentially confusing/misleading headers
sub drop_unwanted_headers ($) {
my ($mime) = @_;
- $mime->header_set($_) for qw(bytes lines content-length status);
+ $mime->header_set($_) for qw(Bytes Lines Content-Length Status);
$mime->header_set($_) for @PublicInbox::MDA::BAD_HEADERS;
}
}
sub v1_mid0 ($) {
- my ($mime) = @_;
- my $hdr = $mime->header_obj;
- my $mids = mids($hdr);
+ my ($eml) = @_;
+ my $mids = mids($eml);
- if (!scalar(@$mids)) { # spam often has no Message-Id
- my $mid0 = digest2mid(content_digest($mime), $hdr);
- append_mid($hdr, $mid0);
+ if (!scalar(@$mids)) { # spam often has no Message-ID
+ my $mid0 = digest2mid(content_digest($eml), $eml);
+ append_mid($eml, $mid0);
return $mid0;
}
$mids->[0];
# returns undef on duplicate
# returns the :MARK of the most recent commit
sub add {
- my ($self, $mime, $check_cb) = @_; # mime = Email::MIME
-
- my ($name, $email) = extract_author_info($mime);
- my $hdr = $mime->header_obj;
- my @at = msg_datestamp($hdr);
- my @ct = msg_timestamp($hdr);
- my $author_time_raw = git_timestamp(@at);
- my $commit_time_raw = git_timestamp(@ct);
- my $subject = $mime->header('Subject');
- $subject = '(no subject)' unless defined $subject;
- my $path_type = $self->{path_type};
+ my ($self, $mime, $check_cb, $smsg) = @_;
+ my ($author, $at, $ct, $subject) = extract_cmt_info($mime, $smsg);
+ my $path_type = $self->{path_type};
my $path;
if ($path_type eq '2/38') {
$path = mid2path(v1_mid0($mime));
# spam check:
if ($check_cb) {
- $mime = $check_cb->($mime) or return;
+ $mime = $check_cb->($mime, $self->{ibx}) or return;
}
my $blob = $self->{mark}++;
- my $str = $mime->as_string;
- my $n = length($str);
+ my $raw_email = $mime->{-public_inbox_raw} // $mime->as_string;
+ my $n = length($raw_email);
$self->{bytes_added} += $n;
print $w "blob\nmark :$blob\ndata ", $n, "\n" or wfail;
- print $w $str, "\n" or wfail;
+ print $w $raw_email, "\n" or wfail;
# v2: we need this for Xapian
- if ($self->{want_object_info}) {
- my $oid = $self->get_mark(":$blob");
- $self->{last_object} = [ $oid, $n, \$str ];
+ if ($smsg) {
+ $smsg->{blob} = $self->get_mark(":$blob");
+ $smsg->{raw_bytes} = $n;
+ $smsg->{-raw_email} = \$raw_email;
}
my $ref = $self->{ref};
my $commit = $self->{mark}++;
print $w "reset $ref\n" or wfail;
}
- # Mime decoding can create nulls replace them with spaces to protect git
- $subject =~ tr/\0/ /;
- utf8::encode($subject);
print $w "commit $ref\nmark :$commit\n",
- "author $name <$email> $author_time_raw\n",
- "committer $self->{ident} $commit_time_raw\n" or wfail;
+ "author $author $at\n",
+ "committer $self->{ident} $ct\n" or wfail;
print $w "data ", (length($subject) + 1), "\n",
$subject, "\n\n" or wfail;
if ($tip ne '') {
sub run_die ($;$$) {
my ($cmd, $env, $rdr) = @_;
my $pid = spawn($cmd, $env, $rdr);
- defined $pid or die "spawning ".join(' ', @$cmd)." failed: $!";
waitpid($pid, 0) == $pid or die join(' ', @$cmd) .' did not finish';
$? == 0 or die join(' ', @$cmd) . " failed: $?\n";
}
+my @INIT_FILES = ('HEAD' => "ref: refs/heads/master\n",
+ 'description' => <<EOD,
+Unnamed repository; edit this file 'description' to name the repository.
+EOD
+ 'config' => <<EOC);
+[core]
+ repositoryFormatVersion = 0
+ filemode = true
+ bare = true
+[repack]
+ writeBitmaps = true
+EOC
+
+sub init_bare {
+ my ($dir) = @_; # or self
+ $dir = $dir->{git}->{git_dir} if ref($dir);
+ require File::Path;
+ File::Path::mkpath([ map { "$dir/$_" } qw(objects/info refs/heads) ]);
+ for (my $i = 0; $i < @INIT_FILES; $i++) {
+ my $f = $dir.'/'.$INIT_FILES[$i++];
+ next if -f $f;
+ open my $fh, '>', $f or die "open $f: $!";
+ print $fh $INIT_FILES[$i] or die "print $f: $!";
+ close $fh or die "close $f: $!";
+ }
+}
+
+# true if locked and active
+sub active { !!$_[0]->{out} }
+
sub done {
my ($self) = @_;
my $w = delete $self->{out} or return;
- my $r = delete $self->{in} or die 'BUG: missing {in} when done';
- print $w "done\n" or wfail;
- my $pid = delete $self->{pid} or die 'BUG: missing {pid} when done';
- waitpid($pid, 0) == $pid or die 'fast-import did not finish';
- $? == 0 or die "fast-import failed: $?";
-
- _update_git_info($self, 1) if delete $self->{nchg};
-
- $self->lock_release;
-
+ eval {
+ my $r = delete $self->{in} or die 'BUG: missing {in} when done';
+ print $w "done\n" or wfail;
+ my $pid = delete $self->{pid} or
+ die 'BUG: missing {pid} when done';
+ waitpid($pid, 0) == $pid or die 'fast-import did not finish';
+ $? == 0 or die "fast-import failed: $?";
+ };
+ my $wait_err = $@;
+ my $nchg = delete $self->{nchg};
+ if ($nchg && !$wait_err) {
+ eval { _update_git_info($self, 1) };
+ warn "E: $self->{git}->{git_dir} update info: $@\n" if $@;
+ }
+ $self->lock_release(!!$nchg);
$self->{git}->cleanup;
+ die $wait_err if $wait_err;
}
sub atfork_child {
my ($self) = @_;
foreach my $f (qw(in out)) {
+ next unless defined($self->{$f});
close $self->{$f} or die "failed to close import[$f]: $!\n";
}
}
"$dt.$b64" . '@z';
}
-sub clean_purge_buffer {
- my ($oids, $buf) = @_;
- my $cmt_msg = 'purged '.join(' ',@$oids)."\n";
+sub rewrite_commit ($$$$) {
+ my ($self, $oids, $buf, $mime) = @_;
+ my ($author, $at, $ct, $subject);
+ if ($mime) {
+ ($author, $at, $ct, $subject) = extract_cmt_info($mime);
+ } else {
+ $author = '<>';
+ $subject = 'purged '.join(' ', @$oids);
+ }
@$oids = ();
-
+ $subject .= "\n";
foreach my $i (0..$#$buf) {
my $l = $buf->[$i];
- if ($l =~ /^author .* (\d+ [\+-]?\d+)$/) {
- $buf->[$i] = "author <> $1\n";
- } elsif ($l =~ /^data (\d+)/) {
- $buf->[$i++] = "data " . length($cmt_msg) . "\n";
- $buf->[$i] = $cmt_msg;
+ if ($l =~ /^author .* ([0-9]+ [\+-]?[0-9]+)$/) {
+ $at //= $1;
+ $buf->[$i] = "author $author $at\n";
+ } elsif ($l =~ /^committer .* ([0-9]+ [\+-]?[0-9]+)$/) {
+ $ct //= $1;
+ $buf->[$i] = "committer $self->{ident} $ct\n";
+ } elsif ($l =~ /^data ([0-9]+)/) {
+ $buf->[$i++] = "data " . length($subject) . "\n";
+ $buf->[$i] = $subject;
last;
}
}
}
-sub purge_oids {
- my ($self, $purge) = @_;
- my $tmp = "refs/heads/purge-".((keys %$purge)[0]);
+# returns the new commit OID if a replacement was done
+# returns undef if nothing was done
+sub replace_oids {
+ my ($self, $mime, $replace_map) = @_; # oid => raw string
+ my $tmp = "refs/heads/replace-".((keys %$replace_map)[0]);
my $old = $self->{'ref'};
my $git = $self->{git};
my @export = (qw(fast-export --no-data --use-done-feature), $old);
- my ($rd, $pid) = $git->popen(@export);
+ my $rd = $git->popen(@export);
my ($r, $w) = $self->gfi_start;
my @buf;
- my $npurge = 0;
+ my $nreplace = 0;
my @oids;
my ($done, $mark);
my $tree = $self->{-tree};
push @buf, "reset $tmp\n";
} elsif (/^commit (?:.+)/) {
if (@buf) {
- $w->print(@buf) or wfail;
+ print $w @buf or wfail;
@buf = ();
}
push @buf, "commit $tmp\n";
- } elsif (/^data (\d+)/) {
+ } elsif (/^data ([0-9]+)/) {
# only commit message, so $len is small:
my $len = $1; # + 1 for trailing "\n"
push @buf, $_;
push @buf, $buf;
} elsif (/^M 100644 ([a-f0-9]+) (\w+)/) {
my ($oid, $path) = ($1, $2);
- if ($purge->{$oid}) {
+ $tree->{$path} = 1;
+ my $sref = $replace_map->{$oid};
+ if (defined $sref) {
push @oids, $oid;
- delete $tree->{$path};
+ my $n = length($$sref);
+ push @buf, "M 100644 inline $path\ndata $n\n";
+ push @buf, $$sref; # hope CoW works...
+ push @buf, "\n";
} else {
- $tree->{$path} = 1;
push @buf, $_;
}
} elsif (/^D (\w+)/) {
push @buf, $_ if $tree->{$path};
} elsif ($_ eq "\n") {
if (@oids) {
- my $out = join('', @buf);
- $out =~ s/^/# /sgm;
- warn "purge rewriting\n", $out, "\n";
- clean_purge_buffer(\@oids, \@buf);
- $npurge++;
+ if (!$mime) {
+ my $out = join('', @buf);
+ $out =~ s/^/# /sgm;
+ warn "purge rewriting\n", $out, "\n";
+ }
+ rewrite_commit($self, \@oids, \@buf, $mime);
+ $nreplace++;
}
- $w->print(@buf, "\n") or wfail;
+ print $w @buf, "\n" or wfail;
@buf = ();
} elsif ($_ eq "done\n") {
$done = 1;
- } elsif (/^mark :(\d+)$/) {
+ } elsif (/^mark :([0-9]+)$/) {
push @buf, $_;
$mark = $1;
} else {
push @buf, $_;
}
}
+ close $rd or die "close fast-export failed: $?";
if (@buf) {
- $w->print(@buf) or wfail;
+ print $w @buf or wfail;
}
die 'done\n not seen from fast-export' unless $done;
- chomp(my $cmt = $self->get_mark(":$mark")) if $npurge;
+ chomp(my $cmt = $self->get_mark(":$mark")) if $nreplace;
$self->{nchg} = 0; # prevent _update_git_info until update-ref:
$self->done;
my @git = ('git', "--git-dir=$git->{git_dir}");
- run_die([@git, qw(update-ref), $old, $tmp]) if $npurge;
+ run_die([@git, qw(update-ref), $old, $tmp]) if $nreplace;
run_die([@git, qw(update-ref -d), $tmp]);
- return if $npurge == 0;
+ return if $nreplace == 0;
- run_die([@git, qw(-c gc.reflogExpire=now gc --prune=all)]);
+ run_die([@git, qw(-c gc.reflogExpire=now gc --prune=all --quiet)]);
+
+ # check that old OIDs are gone
my $err = 0;
- foreach my $oid (keys %$purge) {
+ foreach my $oid (keys %$replace_map) {
my @info = $git->check($oid);
if (@info) {
- warn "$oid not purged\n";
+ warn "$oid not replaced\n";
$err++;
}
}
_update_git_info($self, 0);
- die "Failed to purge $err object(s)\n" if $err;
+ die "Failed to replace $err object(s)\n" if $err;
$cmt;
}
=head1 NAME
-PublicInbox::Import - message importer for public-inbox
+PublicInbox::Import - message importer for public-inbox v1 inboxes
=head1 VERSION
version 1.0
-=head1 SYNOPSYS
+=head1 SYNOPSIS
+
+ use PublicInbox::Eml;
+ # PublicInbox::Eml exists as of public-inbox 1.5.0,
+ # Email::MIME was used in older versions
- use Email::MIME;
use PublicInbox::Git;
use PublicInbox::Import;
"Date: Thu, 01 Jan 1970 00:00:00 +0000\n" .
"Message-ID: <m\@example.org>\n".
"\ntest message";
- my $parsed = Email::MIME->new($message);
+ my $parsed = PublicInbox::Eml->new($message);
my $ret = $im->add($parsed);
if (!defined $ret) {
- warn "duplicate: ",
- $parsed->header_obj->header_raw('Message-ID'), "\n";
+ warn "duplicate: ", $parsed->header_raw('Message-ID'), "\n";
} else {
print "imported at mark $ret\n";
}
$im->done;
# to remove a message
- my $junk = Email::MIME->new($message);
+ my $junk = PublicInbox::Eml->new($message);
my ($mark, $orig) = $im->remove($junk);
if ($mark eq 'MISSING') {
print "not found\n";
=head1 DESCRIPTION
-An importer and remover for public-inboxes which takes L<Email::MIME>
-messages as input and stores them in a ssoma repository as
-documented in L<https://ssoma.public-inbox.org/ssoma_repository.txt>,
+An importer and remover for public-inboxes which takes C<PublicInbox::Eml>
+or L<Email::MIME> messages as input and stores them in a git repository as
+documented in L<https://public-inbox.org/public-inbox-v1-format.txt>,
except it does not allow duplicate Message-IDs.
It requires L<git(1)> and L<git-fast-import(1)> to be installed.
=head2 add
- my $parsed = Email::MIME->new($message);
+ my $parsed = PublicInbox::Eml->new($message);
$im->add($parsed);
Adds a message to to the git repository. This will acquire
=head2 remove
- my $junk = Email::MIME->new($message);
+ my $junk = PublicInbox::Eml->new($message);
my ($code, $orig) = $im->remove($junk);
Removes a message from the repository. On success, it returns
a ':'-prefixed numeric code representing the git-fast-import
-mark and the original messages as an Email::MIME object.
+mark and the original messages as a PublicInbox::Eml
+(or Email::MIME) object.
If the message could not be found, the code is "MISSING"
and the original message is undef. If there is a mismatch where
the "Message-ID" is matched but the subject and body do not match,
=head1 COPYRIGHT
-Copyright (C) 2016 all contributors L<mailto:meta@public-inbox.org>
+Copyright (C) 2016-2020 all contributors L<mailto:meta@public-inbox.org>
License: AGPL-3.0+ L<http://www.gnu.org/licenses/agpl-3.0.txt>