hydra/src/lib/Hydra/View/NARInfo.pm
2015-02-17 20:15:37 +01:00

56 lines
1.6 KiB
Perl

package Hydra::View::NARInfo;
use File::Basename;
use Hydra::Helper::CatalystUtils;
use MIME::Base64;
use Nix::Manifest;
use Nix::Store;
use Nix::Utils;
use base qw/Catalyst::View/;
use strict;
sub process {
my ($self, $c) = @_;
my $storePath = $c->stash->{storePath};
$c->response->content_type('text/x-nix-narinfo'); # !!! check MIME type
my ($deriver, $narHash, $time, $narSize, $refs) = queryPathInfo($storePath, 1);
my $info;
$info .= "StorePath: $storePath\n";
$info .= "URL: nar/" . basename $storePath. "\n";
$info .= "Compression: bzip2\n";
$info .= "NarHash: $narHash\n";
$info .= "NarSize: $narSize\n";
$info .= "References: " . join(" ", map { basename $_ } @{$refs}) . "\n";
if (defined $deriver) {
$info .= "Deriver: " . basename $deriver . "\n";
if (isValidPath($deriver)) {
my $drv = derivationFromPath($deriver);
$info .= "System: $drv->{platform}\n";
}
}
# Optionally, sign the NAR info file we just created.
my $secretKeyFile = $c->config->{binary_cache_secret_key_file};
if (defined $secretKeyFile) {
my $s = readFile $secretKeyFile;
chomp $s;
my ($keyName, $secretKey) = split ":", $s;
die "invalid secret key file\n" unless defined $keyName && defined $secretKey;
my $fingerprint = fingerprintPath($storePath, $narHash, $narSize, $refs);
my $sig = encode_base64(signString(decode_base64($secretKey), $fingerprint), "");
$info .= "Sig: $keyName:$sig\n";
}
setCacheHeaders($c, 24 * 60 * 60);
$c->response->body($info);
return 1;
}
1;