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# frozen_string_literal: true
require 'spec_helper'
describe Gitlab::X509::Signature do
let(:issuer_attributes) do
{
subject_key_identifier: X509Helpers::User1.issuer_subject_key_identifier,
subject: X509Helpers::User1.certificate_issuer,
crl_url: X509Helpers::User1.certificate_crl
}
end
context 'commit signature' do
let(:certificate_attributes) do
{
subject_key_identifier: X509Helpers::User1.certificate_subject_key_identifier,
subject: X509Helpers::User1.certificate_subject,
email: X509Helpers::User1.certificate_email,
serial_number: X509Helpers::User1.certificate_serial
}
end
context 'verified signature' do
context 'with trusted certificate store' do
before do
store = OpenSSL::X509::Store.new
certificate = OpenSSL::X509::Certificate.new(X509Helpers::User1.trust_cert)
store.add_cert(certificate)
allow(OpenSSL::X509::Store).to receive(:new).and_return(store)
end
it 'returns a verified signature if email does match' do
signature = described_class.new(
X509Helpers::User1.signed_commit_signature,
X509Helpers::User1.signed_commit_base_data,
X509Helpers::User1.certificate_email,
X509Helpers::User1.signed_commit_time
)
expect(signature.x509_certificate).to have_attributes(certificate_attributes)
expect(signature.x509_certificate.x509_issuer).to have_attributes(issuer_attributes)
expect(signature.verified_signature).to be_truthy
expect(signature.verification_status).to eq(:verified)
end
it 'returns an unverified signature if email does not match' do
signature = described_class.new(
X509Helpers::User1.signed_commit_signature,
X509Helpers::User1.signed_commit_base_data,
"gitlab@example.com",
X509Helpers::User1.signed_commit_time
)
expect(signature.x509_certificate).to have_attributes(certificate_attributes)
expect(signature.x509_certificate.x509_issuer).to have_attributes(issuer_attributes)
expect(signature.verified_signature).to be_truthy
expect(signature.verification_status).to eq(:unverified)
end
it 'returns an unverified signature if email does match and time is wrong' do
signature = described_class.new(
X509Helpers::User1.signed_commit_signature,
X509Helpers::User1.signed_commit_base_data,
X509Helpers::User1.certificate_email,
Time.new(2020, 2, 22)
)
expect(signature.x509_certificate).to have_attributes(certificate_attributes)
expect(signature.x509_certificate.x509_issuer).to have_attributes(issuer_attributes)
expect(signature.verified_signature).to be_falsey
expect(signature.verification_status).to eq(:unverified)
end
it 'returns an unverified signature if certificate is revoked' do
signature = described_class.new(
X509Helpers::User1.signed_commit_signature,
X509Helpers::User1.signed_commit_base_data,
X509Helpers::User1.certificate_email,
X509Helpers::User1.signed_commit_time
)
expect(signature.verification_status).to eq(:verified)
signature.x509_certificate.revoked!
expect(signature.verification_status).to eq(:unverified)
end
end
context 'without trusted certificate within store' do
before do
store = OpenSSL::X509::Store.new
allow(OpenSSL::X509::Store).to receive(:new)
.and_return(
store
)
end
it 'returns an unverified signature' do
signature = described_class.new(
X509Helpers::User1.signed_commit_signature,
X509Helpers::User1.signed_commit_base_data,
X509Helpers::User1.certificate_email,
X509Helpers::User1.signed_commit_time
)
expect(signature.x509_certificate).to have_attributes(certificate_attributes)
expect(signature.x509_certificate.x509_issuer).to have_attributes(issuer_attributes)
expect(signature.verified_signature).to be_falsey
expect(signature.verification_status).to eq(:unverified)
end
end
end
context 'invalid signature' do
it 'returns nil' do
signature = described_class.new(
X509Helpers::User1.signed_commit_signature.tr('A', 'B'),
X509Helpers::User1.signed_commit_base_data,
X509Helpers::User1.certificate_email,
X509Helpers::User1.signed_commit_time
)
expect(signature.x509_certificate).to be_nil
expect(signature.verified_signature).to be_falsey
expect(signature.verification_status).to eq(:unverified)
end
end
context 'invalid commit message' do
it 'returns nil' do
signature = described_class.new(
X509Helpers::User1.signed_commit_signature,
'x',
X509Helpers::User1.certificate_email,
X509Helpers::User1.signed_commit_time
)
expect(signature.x509_certificate).to be_nil
expect(signature.verified_signature).to be_falsey
expect(signature.verification_status).to eq(:unverified)
end
end
end
context 'certificate_crl' do
describe 'valid crlDistributionPoints' do
before do
allow_any_instance_of(Gitlab::X509::Signature).to receive(:get_certificate_extension).and_call_original
allow_any_instance_of(Gitlab::X509::Signature).to receive(:get_certificate_extension)
.with('crlDistributionPoints')
.and_return("\nFull Name:\n URI:http://ch.siemens.com/pki?ZZZZZZA2.crl\n URI:ldap://cl.siemens.net/CN=ZZZZZZA2,L=PKI?certificateRevocationList\n URI:ldap://cl.siemens.com/CN=ZZZZZZA2,o=Trustcenter?certificateRevocationList\n")
end
it 'creates an issuer' do
signature = described_class.new(
X509Helpers::User1.signed_commit_signature,
X509Helpers::User1.signed_commit_base_data,
X509Helpers::User1.certificate_email,
X509Helpers::User1.signed_commit_time
)
expect(signature.x509_certificate.x509_issuer).to have_attributes(issuer_attributes)
end
end
describe 'valid crlDistributionPoints providing multiple http URIs' do
before do
allow_any_instance_of(Gitlab::X509::Signature).to receive(:get_certificate_extension).and_call_original
allow_any_instance_of(Gitlab::X509::Signature).to receive(:get_certificate_extension)
.with('crlDistributionPoints')
.and_return("\nFull Name:\n URI:http://cdp1.pca.dfn.de/dfn-ca-global-g2/pub/crl/cacrl.crl\n\nFull Name:\n URI:http://cdp2.pca.dfn.de/dfn-ca-global-g2/pub/crl/cacrl.crl\n")
end
it 'extracts the first URI' do
signature = described_class.new(
X509Helpers::User1.signed_commit_signature,
X509Helpers::User1.signed_commit_base_data,
X509Helpers::User1.certificate_email,
X509Helpers::User1.signed_commit_time
)
expect(signature.x509_certificate.x509_issuer.crl_url).to eq("http://cdp1.pca.dfn.de/dfn-ca-global-g2/pub/crl/cacrl.crl")
end
end
end
context 'email' do
describe 'subjectAltName with email, othername' do
before do
allow_any_instance_of(Gitlab::X509::Signature).to receive(:get_certificate_extension).and_call_original
allow_any_instance_of(Gitlab::X509::Signature).to receive(:get_certificate_extension)
.with('subjectAltName')
.and_return("email:gitlab@example.com, othername:<unsupported>")
end
it 'extracts email' do
signature = described_class.new(
X509Helpers::User1.signed_commit_signature,
X509Helpers::User1.signed_commit_base_data,
'gitlab@example.com',
X509Helpers::User1.signed_commit_time
)
expect(signature.x509_certificate.email).to eq("gitlab@example.com")
end
end
describe 'subjectAltName with othername, email' do
before do
allow_any_instance_of(Gitlab::X509::Signature).to receive(:get_certificate_extension).and_call_original
allow_any_instance_of(Gitlab::X509::Signature).to receive(:get_certificate_extension)
.with('subjectAltName')
.and_return("othername:<unsupported>, email:gitlab@example.com")
end
it 'extracts email' do
signature = described_class.new(
X509Helpers::User1.signed_commit_signature,
X509Helpers::User1.signed_commit_base_data,
'gitlab@example.com',
X509Helpers::User1.signed_commit_time
)
expect(signature.x509_certificate.email).to eq("gitlab@example.com")
end
end
end
end
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