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package Devscripts::Uscan::Keyring;
use strict;
use Devscripts::Uscan::Output;
use Devscripts::Uscan::Utils;
use Dpkg::IPC;
use File::Copy qw/copy move/;
use File::Which;
use File::Path qw/make_path remove_tree/;
use File::Temp qw/tempfile tempdir/;
use List::Util qw/first/;
sub new {
my ($class) = @_;
my $keyring;
my $havegpgv = first { which $_ } qw(gpgv2 gpgv);
my $havegpg = first { which $_ } qw(gpg2 gpg);
uscan_die("Please install gpgv or gpgv2.") unless defined $havegpgv;
uscan_die("Please install gnupg or gnupg2.") unless defined $havegpg;
# upstream/signing-key.pgp and upstream-signing-key.pgp are deprecated
# but supported
if (-r "debian/upstream/signing-key.asc") {
$keyring = "debian/upstream/signing-key.asc";
} else {
my $binkeyring = first { -r $_ } qw(
debian/upstream/signing-key.pgp
debian/upstream-signing-key.pgp
);
if (defined $binkeyring) {
make_path('debian/upstream', { mode => 0700, verbose => 'true' });
# convert to the policy complying armored key
uscan_verbose(
"Found upstream binary signing keyring: $binkeyring");
# Need to convert to an armored key
$keyring = "debian/upstream/signing-key.asc";
uscan_warn "Found deprecated binary keyring ($binkeyring). "
. "Please save it in armored format in $keyring. For example:\n"
. " gpg --output $keyring --enarmor $binkeyring";
spawn(
exec => [
$havegpg,
'--homedir' => "/dev/null",
'--no-options', '-q', '--batch', '--no-default-keyring',
'--output' => $keyring,
'--enarmor', $binkeyring
],
wait_child => 1
);
uscan_warn("Generated upstream signing keyring: $keyring");
move $binkeyring, "$binkeyring.backup";
uscan_verbose(
"Renamed upstream binary signing keyring: $binkeyring.backup");
}
}
# Need to convert an armored key to binary for use by gpgv
my $gpghome;
if (defined $keyring) {
uscan_verbose("Found upstream signing keyring: $keyring");
if ($keyring =~ m/\.asc$/) { # always true
$gpghome = tempdir(CLEANUP => 1);
my $newkeyring = "$gpghome/trustedkeys.gpg";
spawn(
exec => [
$havegpg,
'--homedir' => $gpghome,
'--no-options', '-q', '--batch', '--no-default-keyring',
'--output' => $newkeyring,
'--dearmor', $keyring
],
wait_child => 1
);
$keyring = $newkeyring;
}
}
# Return undef if not key found
else {
return undef;
}
my $self = bless {
keyring => $keyring,
gpghome => $gpghome,
gpgv => $havegpgv,
gpg => $havegpg,
}, $class;
return $self;
}
sub verify {
my ($self, $sigfile, $newfile) = @_;
uscan_verbose(
"Verifying OpenPGP self signature of $newfile and extract $sigfile");
unless (
uscan_exec_no_fail(
$self->{gpgv},
'--homedir' => $self->{gpghome},
'--keyring' => $self->{keyring},
'-o' => "$sigfile",
"$newfile"
) >> 8 == 0
) {
uscan_die("OpenPGP signature did not verify.");
}
}
sub verifyv {
my ($self, $sigfile, $base) = @_;
uscan_verbose("Verifying OpenPGP signature $sigfile for $base");
unless (
uscan_exec_no_fail(
$self->{gpgv},
'--homedir' => '/dev/null',
'--keyring' => $self->{keyring},
$sigfile, $base
) >> 8 == 0
) {
uscan_die("OpenPGP signature did not verify.");
}
}
sub verify_git {
my ($self, $gitdir, $tag, $git_upstream) = @_;
my $commit;
my @dir = $git_upstream ? () : ('--git-dir', $gitdir);
spawn(
exec => ['git', @dir, 'show-ref', $tag],
to_string => \$commit
);
uscan_die "git tag not found" unless ($commit);
$commit =~ s/\s.*$//;
chomp $commit;
my $file;
spawn(
exec => ['git', @dir, 'cat-file', '-p', $commit],
to_string => \$file
);
my $dir;
spawn(exec => ['mktemp', '-d'], to_string => \$dir);
chomp $dir;
unless ($file =~ /^(.*?\n)(\-+\s*BEGIN PGP SIGNATURE\s*\-+.*)$/s) {
uscan_die "Tag $tag is not signed";
}
open F, ">$dir/txt" or die $!;
open S, ">$dir/sig" or die $!;
print F $1;
print S $2;
close F;
close S;
unless (
uscan_exec_no_fail(
$self->{gpgv},
'--homedir' => $self->{gpghome},
'--keyring' => $self->{keyring},
"$dir/sig", "$dir/txt"
) >> 8 == 0
) {
uscan_die("OpenPGP signature did not verify.");
}
remove_tree($dir);
}
1;
|
