-# Copyright (C) 2015-2019 all contributors <meta@public-inbox.org>
+# Copyright (C) 2015-2020 all contributors <meta@public-inbox.org>
# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
# Streaming (via getline) interface for formatting messages as an mboxrd.
use warnings;
use PublicInbox::MID qw/mid_escape/;
use PublicInbox::Hval qw/to_filename/;
+use PublicInbox::Smsg;
+use PublicInbox::WwwStream qw(html_oneshot);
use Email::Simple;
use Email::MIME::Encode;
sub subject_fn ($) {
my ($hdr) = @_;
my $fn = $hdr->header('Subject');
- return 'no-subject' unless defined($fn);
+ return 'no-subject' if (!defined($fn) || $fn eq '');
# no need for full Email::MIME, here
if ($fn =~ /=\?/) {
eval { $fn = Encode::decode('MIME-Header', $fn) };
- $fn = 'no-subject' if $@;
+ return 'no-subject' if $@;
}
$fn =~ s/^re:\s+//i;
- $fn = to_filename($fn);
- $fn eq '' ? 'no-subject' : $fn;
+ $fn eq '' ? 'no-subject' : to_filename($fn);
}
sub mb_stream {
my ($ctx, $id, $prev, $next, $mref, $hdr) = @$more;
if ($hdr) { # first message hits this, only
pop @$more; # $hdr
- return msg_hdr($ctx, $hdr);
- }
- if ($mref) { # all messages hit this
pop @$more; # $mref
- return msg_body($$mref);
+ return msg_hdr($ctx, $hdr) . msg_body($$mref);
}
my $cur = $next or return;
my $ibx = $ctx->{-inbox};
$next = $ibx->over->next_by_mid($ctx->{mid}, \$id, \$prev);
$mref = $ibx->msg_by_smsg($cur) or return;
$hdr = Email::Simple->new($mref)->header_obj;
- @$more = ($ctx, $id, $prev, $next, $mref); # $next may be undef, here
- msg_hdr($ctx, $hdr); # all but first message hits this
+ @$more = ($ctx, $id, $prev, $next); # $next may be undef, here
+ msg_hdr($ctx, $hdr) . msg_body($$mref);
}
sub close {} # noop
$_[0] .= "\n";
}
+sub thread_cb {
+ my ($ctx) = @_;
+ my $msgs = $ctx->{msgs};
+ while (1) {
+ if (my $smsg = shift @$msgs) {
+ return $smsg;
+ }
+ # refill result set
+ $ctx->{msgs} = $msgs = $ctx->{over}->get_thread($ctx->{mid},
+ $ctx->{prev});
+ return unless @$msgs;
+ $ctx->{prev} = $msgs->[-1];
+ }
+}
+
sub thread_mbox {
my ($ctx, $over, $sfx) = @_;
- eval { require IO::Compress::Gzip };
- return sub { need_gzip(@_) } if $@;
- my $mid = $ctx->{mid};
- my $msgs = $over->get_thread($mid, {});
+ eval { require PublicInbox::MboxGz };
+ return need_gzip($ctx) if $@;
+ my $msgs = $ctx->{msgs} = $over->get_thread($ctx->{mid}, {});
return [404, [qw(Content-Type text/plain)], []] if !@$msgs;
- my $prev = $msgs->[-1];
- my $i = 0;
- my $cb = sub {
- while (1) {
- if (my $smsg = $msgs->[$i++]) {
- return $smsg;
- }
- # refill result set
- $msgs = $over->get_thread($mid, $prev);
- return unless @$msgs;
- $prev = $msgs->[-1];
- $i = 0;
- }
- };
- PublicInbox::MboxGz->response($ctx, $cb, $msgs->[0]->subject);
+ $ctx->{prev} = $msgs->[-1];
+ $ctx->{over} = $over; # bump refcnt
+ PublicInbox::MboxGz->response($ctx, \&thread_cb, $msgs->[0]->subject);
}
sub emit_range {
mbox_all($ctx, $query);
}
+sub all_ids_cb {
+ my ($ctx) = @_;
+ my $ids = $ctx->{ids};
+ do {
+ while ((my $num = shift @$ids)) {
+ my $smsg = $ctx->{over}->get_art($num) or next;
+ return $smsg;
+ }
+ $ctx->{ids} = $ids = $ctx->{mm}->ids_after(\($ctx->{prev}));
+ } while (@$ids);
+}
+
sub mbox_all_ids {
my ($ctx) = @_;
- my $prev = 0;
my $ibx = $ctx->{-inbox};
- my $ids = $ibx->mm->ids_after(\$prev) or return
+ my $prev = 0;
+ my $mm = $ctx->{mm} = $ibx->mm;
+ my $ids = $mm->ids_after(\$prev) or return
[404, [qw(Content-Type text/plain)], ["No results found\n"]];
- my $i = 0;
- my $over = $ibx->over or
+ $ctx->{over} = $ibx->over or
return PublicInbox::WWW::need($ctx, 'Overview');
- my $cb = sub {
- do {
- while ((my $num = $ids->[$i++])) {
- my $smsg = $over->get_art($num) or next;
- return $smsg;
- }
- $ids = $ibx->mm->ids_after(\$prev);
- $i = 0;
- } while (@$ids);
- undef;
- };
- return PublicInbox::MboxGz->response($ctx, $cb, 'all');
+ $ctx->{ids} = $ids;
+ $ctx->{prev} = $prev;
+ return PublicInbox::MboxGz->response($ctx, \&all_ids_cb, 'all');
+}
+
+sub results_cb {
+ my ($ctx) = @_;
+ my $mset = $ctx->{mset};
+ my $srch = $ctx->{srch};
+ while (1) {
+ while (my $mi = (($mset->items)[$ctx->{iter}++])) {
+ my $smsg = PublicInbox::Smsg::from_mitem($mi,
+ $srch) or next;
+ return $smsg;
+ }
+ # refill result set
+ $mset = $ctx->{mset} = $srch->query($ctx->{query},
+ $ctx->{qopts});
+ my $size = $mset->size or return;
+ $ctx->{qopts}->{offset} += $size;
+ $ctx->{iter} = 0;
+ }
}
sub mbox_all {
my ($ctx, $query) = @_;
- eval { require IO::Compress::Gzip };
- return sub { need_gzip(@_) } if $@;
+ eval { require PublicInbox::MboxGz };
+ return need_gzip($ctx) if $@;
return mbox_all_ids($ctx) if $query eq '';
- my $opts = { mset => 2 };
- my $srch = $ctx->{-inbox}->search or
+ my $qopts = $ctx->{qopts} = { mset => 2 };
+ my $srch = $ctx->{srch} = $ctx->{-inbox}->search or
return PublicInbox::WWW::need($ctx, 'Search');;
- my $mset = $srch->query($query, $opts);
- $opts->{offset} = $mset->size or
+ my $mset = $ctx->{mset} = $srch->query($query, $qopts);
+ $qopts->{offset} = $mset->size or
return [404, [qw(Content-Type text/plain)],
["No results found\n"]];
- my $i = 0;
- my $cb = sub { # called by MboxGz->getline
- while (1) {
- while (my $mi = (($mset->items)[$i++])) {
- my $doc = $mi->get_document;
- my $smsg = $srch->retry_reopen(sub {
- PublicInbox::SearchMsg->load_doc($doc);
- }) or next;
- return $smsg;
- }
- # refill result set
- $mset = $srch->query($query, $opts);
- my $size = $mset->size or return;
- $opts->{offset} += $size;
- $i = 0;
- }
- };
- PublicInbox::MboxGz->response($ctx, $cb, 'results-'.$query);
+ $ctx->{iter} = 0;
+ $ctx->{query} = $query;
+ PublicInbox::MboxGz->response($ctx, \&results_cb, 'results-'.$query);
}
sub need_gzip {
- my $fh = $_[0]->([501, ['Content-Type' => 'text/html']]);
- my $title = 'gzipped mbox not available';
- $fh->write(<<EOF);
-<html><head><title>$title</title><body><pre>$title
-The administrator needs to install the IO::Compress::Gzip Perl module
-to support gzipped mboxes.
-<a href="../">Return to index</a></pre></body></html>
-EOF
- $fh->close;
-}
-
-1;
-
-package PublicInbox::MboxGz;
-use strict;
-use warnings;
-use PublicInbox::Hval qw/to_filename/;
-
-sub new {
- my ($class, $ctx, $cb) = @_;
- my $buf = '';
- $ctx->{base_url} = $ctx->{-inbox}->base_url($ctx->{env});
- bless {
- buf => \$buf,
- gz => IO::Compress::Gzip->new(\$buf, Time => 0),
- cb => $cb,
- ctx => $ctx,
- }, $class;
-}
+ html_oneshot($_[0], 501, \<<EOF);
+<pre>gzipped mbox not available
-sub response {
- my ($class, $ctx, $cb, $fn) = @_;
- my $body = $class->new($ctx, $cb);
- # http://www.iana.org/assignments/media-types/application/gzip
- my @h = qw(Content-Type application/gzip);
- if ($fn) {
- $fn = to_filename($fn);
- push @h, 'Content-Disposition', "inline; filename=$fn.mbox.gz";
- }
- [ 200, \@h, $body ];
-}
-
-# called by Plack::Util::foreach or similar
-sub getline {
- my ($self) = @_;
- my $ctx = $self->{ctx} or return;
- my $gz = $self->{gz};
- while (my $smsg = $self->{cb}->()) {
- my $mref = $ctx->{-inbox}->msg_by_smsg($smsg) or next;
- my $h = Email::Simple->new($mref)->header_obj;
- $gz->write(PublicInbox::Mbox::msg_hdr($ctx, $h, $smsg->{mid}));
- $gz->write(PublicInbox::Mbox::msg_body($$mref));
-
- my $bref = $self->{buf};
- if (length($$bref) >= 8192) {
- my $ret = $$bref; # copy :<
- ${$self->{buf}} = '';
- return $ret;
- }
+The administrator needs to install the Compress::Raw::Zlib Perl module
+to support gzipped mboxes.
- # be fair to other clients on public-inbox-httpd:
- return '';
- }
- delete($self->{gz})->close;
- # signal that we're done and can return undef next call:
- delete $self->{ctx};
- ${delete $self->{buf}};
+<a href="../">Return to index</a></pre>
+EOF
}
-sub close {} # noop
-
1;