$title$title
The administrator needs to install the IO::Compress::Gzip Perl module
to support gzipped mboxes.
Return to index
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 = '';
bless {
buf => \$buf,
gz => IO::Compress::Gzip->new(\$buf, Time => 0),
cb => $cb,
ctx => $ctx,
msgs => [],
opts => { 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
$body->{hdr} = [ 'Content-Type', 'application/gzip' ];
$body->{fn} = $fn;
my $hdr = $body->getline; # fill in Content-Disposition filename
[ 200, $hdr, $body ];
}
sub set_filename ($$) {
my ($fn, $msg) = @_;
return to_filename($fn) if defined($fn);
PublicInbox::Mbox::subject_fn($msg);
}
# called by Plack::Util::foreach or similar
sub getline {
my ($self) = @_;
my $ctx = $self->{ctx} or return;
my $res;
my $ibx = $ctx->{-inbox};
my $gz = $self->{gz};
do {
# work on existing result set
while (defined(my $smsg = shift @{$self->{msgs}})) {
my $msg = eval { $ibx->msg_by_smsg($smsg) } or next;
$msg = Email::Simple->new($msg);
$gz->write(PublicInbox::Mbox::msg_str($ctx, $msg));
# use subject of first message as subject
if (my $hdr = delete $self->{hdr}) {
my $fn = set_filename($self->{fn}, $msg);
push @$hdr, 'Content-Disposition',
"inline; filename=$fn.mbox.gz";
return $hdr;
}
my $bref = $self->{buf};
if (length($$bref) >= 8192) {
my $ret = $$bref; # copy :<
${$self->{buf}} = '';
return $ret;
}
# be fair to other clients on public-inbox-httpd:
return '';
}
# refill result set
$res = $self->{cb}->($self->{opts});
$self->{msgs} = $res->{msgs};
$res = scalar @{$self->{msgs}};
$self->{opts}->{offset} += $res;
} while ($res);
$gz->close;
delete $self->{ctx};
${delete $self->{buf}};
}
sub close {} # noop
1;