X-Git-Url: http://www.git.stargrave.org/?p=public-inbox.git;a=blobdiff_plain;f=lib%2FPublicInbox%2FMbox.pm;h=4427ae5d86588056c6d7e9108314e8cfd6dff75f;hp=fd623f6d48bd4e63ae3fc8d762e5a75fed39f993;hb=fad9acd35e56a289ade90a62d056b2a6663d448c;hpb=9d1e5fadd7d18f4c96ab0509d673040e34225a04

diff --git a/lib/PublicInbox/Mbox.pm b/lib/PublicInbox/Mbox.pm
index fd623f6d..4427ae5d 100644
--- a/lib/PublicInbox/Mbox.pm
+++ b/lib/PublicInbox/Mbox.pm
@@ -1,5 +1,5 @@
-# Copyright (C) 2015 all contributors <meta@public-inbox.org>
-# License: AGPLv3 or later (https://www.gnu.org/licenses/agpl-3.0.txt)
+# Copyright (C) 2015-2018 all contributors <meta@public-inbox.org>
+# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
 
 # Streaming interface for formatting messages as an mboxrd.
 # Used by the web interface
@@ -7,17 +7,83 @@ package PublicInbox::Mbox;
 use strict;
 use warnings;
 use PublicInbox::MID qw/mid_clean mid_escape/;
-require Email::Simple;
+use PublicInbox::Hval qw/to_filename/;
+use Email::Simple;
+use Email::MIME::Encode;
 
-sub emit1 {
-	my ($ctx, $msg) = @_;
-	$msg = Email::Simple->new($msg);
-	# single message should be easily renderable in browsers
-	[200, ['Content-Type', 'text/plain'], [ msg_str($ctx, $msg)] ]
+sub subject_fn ($) {
+	my ($simple) = @_;
+	my $fn = $simple->header('Subject');
+	return 'no-subject' unless defined($fn);
+
+	# no need for full Email::MIME, here
+	if ($fn =~ /=\?/) {
+		eval { $fn = Encode::decode('MIME-Header', $fn) };
+		$fn = 'no-subject' if $@;
+	}
+	$fn =~ s/^re:\s+//i;
+	$fn = to_filename($fn);
+	$fn eq '' ? 'no-subject' : $fn;
+}
+
+sub mb_stream {
+	my ($more) = @_;
+	bless $more, 'PublicInbox::Mbox';
+}
+
+# called by PSGI server as body response
+sub getline {
+	my ($more) = @_; # self
+	my ($ctx, $id, $prev, $next, $cur) = @$more;
+	if ($cur) { # first
+		pop @$more;
+		return msg_str($ctx, $cur);
+	}
+	$cur = $next or return;
+	my $ibx = $ctx->{-inbox};
+	$next = $ibx->search->next_by_mid($ctx->{mid}, \$id, \$prev);
+	@$more = ($ctx, $id, $prev, $next); # $next may be undef, here
+	my $mref = $ibx->msg_by_smsg($cur) or return;
+	msg_str($ctx, Email::Simple->new($mref));
+}
+
+sub close {} # noop
+
+sub emit_raw {
+	my ($ctx) = @_;
+	my $mid = $ctx->{mid};
+	my $ibx = $ctx->{-inbox};
+	my $first;
+	my $more;
+	if (my $srch = $ibx->search) {
+		my ($id, $prev);
+		my $smsg = $srch->next_by_mid($mid, \$id, \$prev) or return;
+		my $mref = $ibx->msg_by_smsg($smsg) or return;
+		$first = Email::Simple->new($mref);
+		my $next = $srch->next_by_mid($mid, \$id, \$prev);
+		# $more is for ->getline
+		$more = [ $ctx, $id, $prev, $next, $first ] if $next;
+	} else {
+		my $mref = $ibx->msg_by_mid($mid) or return;
+		$first = Email::Simple->new($mref);
+	}
+	return unless defined $first;
+	my $fn = subject_fn($first);
+	my @hdr = ('Content-Type');
+	if ($ibx->{obfuscate}) {
+		# obfuscation is stupid, but maybe scrapers are, too...
+		push @hdr, 'application/mbox';
+		$fn .= '.mbox';
+	} else {
+		push @hdr, 'text/plain';
+		$fn .= '.txt';
+	}
+	push @hdr, 'Content-Disposition', "inline; filename=$fn";
+	[ 200, \@hdr, $more ? mb_stream($more) : [ msg_str($ctx, $first) ] ];
 }
 
 sub msg_str {
-	my ($ctx, $simple) = @_; # Email::Simple object
+	my ($ctx, $simple, $mid) = @_; # Email::Simple object
 	my $header_obj = $simple->header_obj;
 
 	# drop potentially confusing headers, ssoma already should've dropped
@@ -27,7 +93,7 @@ sub msg_str {
 	}
 	my $ibx = $ctx->{-inbox};
 	my $base = $ibx->base_url($ctx->{env});
-	my $mid = mid_clean($header_obj->header('Message-ID'));
+	$mid = $ctx->{mid} unless defined $mid;
 	$mid = mid_escape($mid);
 	my @append = (
 		'Archived-At', "<$base$mid/>",
@@ -63,29 +129,89 @@ sub thread_mbox {
 	my ($ctx, $srch, $sfx) = @_;
 	eval { require IO::Compress::Gzip };
 	return sub { need_gzip(@_) } if $@;
-
-	my $cb = sub { $srch->get_thread($ctx->{mid}, @_) };
-	# http://www.iana.org/assignments/media-types/application/gzip
-	[200, ['Content-Type' => 'application/gzip'],
-		PublicInbox::MboxGz->new($ctx, $cb) ];
+	my $mid = $ctx->{mid};
+	my $msgs = $srch->get_thread($mid, 0);
+	return [404, [qw(Content-Type text/plain)], []] if !@$msgs;
+	my $prev = $msgs->[-1]->{num};
+	my $i = 0;
+	my $cb = sub {
+		while (1) {
+			if (my $smsg = $msgs->[$i++]) {
+				return $smsg;
+			}
+			# refill result set
+			$msgs = $srch->get_thread($mid, $prev);
+			return unless @$msgs;
+			$prev = $msgs->[-1]->{num};
+			$i = 0;
+		}
+	};
+	PublicInbox::MboxGz->response($ctx, $cb, $msgs->[0]->subject);
 }
 
 sub emit_range {
 	my ($ctx, $range) = @_;
 
-	eval { require IO::Compress::Gzip };
-	return sub { need_gzip(@_) } if $@;
 	my $query;
 	if ($range eq 'all') { # TODO: YYYY[-MM]
 		$query = '';
 	} else {
 		return [404, [qw(Content-Type text/plain)], []];
 	}
-	my $cb = sub { $ctx->{srch}->query($query, @_) };
+	mbox_all($ctx, $query);
+}
 
-	# http://www.iana.org/assignments/media-types/application/gzip
-	[200, [qw(Content-Type application/gzip)],
-		PublicInbox::MboxGz->new($ctx, $cb) ];
+sub mbox_all_ids {
+	my ($ctx) = @_;
+	my $prev = 0;
+	my $ids = $ctx->{-inbox}->mm->ids_after(\$prev) or return
+		[404, [qw(Content-Type text/plain)], ["No results found\n"]];
+	my $i = 0;
+	my $over = $ctx->{srch}->{over_ro};
+	my $cb = sub {
+		do {
+			while ((my $num = $ids->[$i++])) {
+				my $smsg = $over->get_art($num) or next;
+				return $smsg;
+			}
+			$ids = $ctx->{-inbox}->mm->ids_after(\$prev);
+			$i = 0;
+		} while (@$ids);
+		undef;
+	};
+	return PublicInbox::MboxGz->response($ctx, $cb, 'all');
+}
+
+sub mbox_all {
+	my ($ctx, $query) = @_;
+
+	eval { require IO::Compress::Gzip };
+	return sub { need_gzip(@_) } if $@;
+	return mbox_all_ids($ctx) if $query eq '';
+	my $opts = { mset => 2 };
+	my $srch = $ctx->{srch};
+	my $mset = $srch->query($query, $opts);
+	$opts->{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);
 }
 
 sub need_gzip {
@@ -105,6 +231,7 @@ EOF
 package PublicInbox::MboxGz;
 use strict;
 use warnings;
+use PublicInbox::Hval qw/to_filename/;
 
 sub new {
 	my ($class, $ctx, $cb) = @_;
@@ -114,39 +241,42 @@ sub new {
 		gz => IO::Compress::Gzip->new(\$buf, Time => 0),
 		cb => $cb,
 		ctx => $ctx,
-		msgs => [],
-		opts => { asc => 1, offset => 0 },
 	}, $class;
 }
 
+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 $res;
-	my $ibx = $ctx->{-inbox};
-	my $gz = $self->{gz};
-	do {
-		while (defined(my $smsg = shift @{$self->{msgs}})) {
-			my $msg = eval { $ibx->msg_by_smsg($smsg) } or next;
-			$msg = Email::Simple->new($msg);
-			$gz->write(PublicInbox::Mbox::msg_str($ctx, $msg));
-			my $bref = $self->{buf};
-			if (length($$bref) >= 8192) {
-				my $ret = $$bref; # copy :<
-				${$self->{buf}} = '';
-				return $ret;
-			}
-
-			# be fair to other clients on public-inbox-httpd:
-			return '';
+	while (my $smsg = $self->{cb}->()) {
+		my $msg = $ctx->{-inbox}->msg_by_smsg($smsg) or next;
+		$msg = Email::Simple->new($msg);
+		$self->{gz}->write(PublicInbox::Mbox::msg_str($ctx, $msg,
+				$smsg->{mid}));
+		my $bref = $self->{buf};
+		if (length($$bref) >= 8192) {
+			my $ret = $$bref; # copy :<
+			${$self->{buf}} = '';
+			return $ret;
 		}
-		$res = $self->{cb}->($self->{opts});
-		$self->{msgs} = $res->{msgs};
-		$res = scalar @{$self->{msgs}};
-		$self->{opts}->{offset} += $res;
-	} while ($res);
-	$gz->close;
+
+		# be fair to other clients on public-inbox-httpd:
+		return '';
+	}
+	delete($self->{gz})->close;
+	# signal that we're done and can return undef next call:
 	delete $self->{ctx};
 	${delete $self->{buf}};
 }