Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

generate_sbom: add license mapping to rewrite licenses spdx conform #1006

Open
wants to merge 1 commit into
base: master
Choose a base branch
from
Open

generate_sbom: add license mapping to rewrite licenses spdx conform #1006

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
85 changes: 81 additions & 4 deletions generate_sbom
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -283,9 +283,63 @@ sub read_pkgs_rpmdb {
return \@rpms;
}

sub spdx_license_mapping {
my ($mapping_file) = @_;
local *F;
my $json_t = do {
unless (open(F, '<', $mapping_file)) {
warn("Could not read license mapping file $mapping_file, $!");
return {};
}
local $/;
<F>
};
my $license_mapping = eval { JSON::XS::decode_json($json_t) };
if ($@) {
warn("Failed to parse $mapping_file: $@");
return {};
}
return $license_mapping;
}

sub map_license {
my ($license, $license_mapping, $pkg) = @_;
if ( $license =~ /\sor\s/i ) {
my @licenses_or;
foreach my $l (split(/\sor\s/i, $license)) {
push(@licenses_or, map_license($l, $license_mapping, $pkg));
}
$license = join(' OR ', @licenses_or);
} elsif ( $license =~ /\swith\s/i ) {
my @licenses_with;
foreach my $l (split(/\swith\s/i, $license)) {
push(@licenses_with, map_license($l, $license_mapping, $pkg));
}
$license = join(' WITH ', @licenses_with);
} elsif ( $license =~ /\sand\s/i ) {
my @licenses_and;
foreach my $l (split(/\sand\s/i, $license)) {
push(@licenses_and, map_license($l, $license_mapping, $pkg));
}
$license = join(' AND ', @licenses_and);
} elsif (defined $license_mapping->{$license}) {
$license = $license_mapping->{$license};
} else {
warn("SPDX-License-Mapping: License for package \"$pkg\" not found in mapping: $license\n");
$license = "NOASSERTION";
}
if ( $license =~ /NOASSERTION/) {
$license = "NOASSERTION";
}
return $license;
}

sub parse_debian_copyright_file {
my ($root, $pkg) = @_;
my $file = "$root/usr/share/doc/$pkg/copyright";
if ( -l $file ) {
$file = $root . readlink $file;
}
local *F;
return {} unless open(F, '<', $file);
my $firstline = <F>;
Expand All @@ -302,7 +356,6 @@ sub parse_debian_copyright_file {
push @copyright, $1 if $1 ne '';
} elsif (/^License:\s*(.*)$/) {
$crfound = 0;
# TODO licenses has to match https://spdx.org/licenses/?
push @license, $1 if $1 ne '';
} elsif (/^(Files|Comment|Disclaimer|Source|Upstream-Name|Upstream-Contact):/) {
$crfound = 0;
Expand Down Expand Up @@ -607,7 +660,7 @@ my $spdx_json_template = {
};

sub spdx_encode_pkg {
my ($p, $distro, $pkgtype) = @_;
my ($p, $distro, $pkgtype, $license_mapping) = @_;
my $vr = $p->{'VERSION'};
$vr = "$vr-$p->{'RELEASE'}" if defined $p->{'RELEASE'};
my $evr = $vr;
Expand All @@ -631,7 +684,11 @@ sub spdx_encode_pkg {
my $license = $p->{'LICENSE'};
if ($license) {
$license =~ s/ and / AND /g;
$spdx->{'licenseConcluded'} = $license;
if (%$license_mapping) {
$spdx->{'licenseConcluded'} = map_license($license, $license_mapping, $p->{'NAME'});
} else {
$spdx->{'licenseConcluded'} = $license;
}
$spdx->{'licenseDeclared'} = $license unless ($config->{'buildflags:spdx-declared-license'} || '') eq 'NOASSERTION';
}
$spdx->{'copyrightText'} = 'NOASSERTION';
Expand Down Expand Up @@ -778,6 +835,26 @@ my $pkgtype = 'rpm';
$config = Build::read_config_dist($dist_opt, $arch || 'noarch', $configdir) if $dist_opt;
my $no_files_generation = ($config->{'buildflags:spdx-files-generation'} || '') eq 'no';

my @license_mapping_files = map { /^spdx-license-mapping:(.*)/ ? $1 : () } @{$config->{'buildflags'}};
my $license_mapping = {};
my $jsonxs_available=0;
eval
{
require JSON::XS;
$jsonxs_available=1;
};
if (@license_mapping_files > 0) {
if ($jsonxs_available) {
foreach my $mapping_file ( @license_mapping_files ) {
my $href = spdx_license_mapping($toprocess . $mapping_file);
%$license_mapping = (%$license_mapping, %$href);
}
} else {
warn("No license mapping as JSON::XS is not available!");
}
}


if ($isproduct) {
# product case
#$files = gen_filelist($toprocess);
Expand Down Expand Up @@ -839,7 +916,7 @@ if ($format eq 'spdx') {
$intoto_type = 'https://spdx.dev/Document';
$doc = spdx_encode_header($subjectname);
for my $p (@$pkgs) {
push @{$doc->{'packages'}}, spdx_encode_pkg($p, $distro, $pkgtype);
push @{$doc->{'packages'}}, spdx_encode_pkg($p, $distro, $pkgtype, $license_mapping);
}
for my $f (@$files) {
next if $f->{'SKIP'};
Expand Down
Loading