gitlab-org--gitlab-foss/spec/lib/gitlab/gpg/commit_spec.rb
Stan Hu 184240e86a Gracefully handle unknown/invalid GPG keys
An unknown public GPG key will result in a GPGME::Error thrown from gpg,
which would cause an Error 500 on the signatures endpoint.

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/54729
2018-12-05 10:55:30 -08:00

291 lines
10 KiB
Ruby

require 'rails_helper'
describe Gitlab::Gpg::Commit do
describe '#signature' do
shared_examples 'returns the cached signature on second call' do
it 'returns the cached signature on second call' do
gpg_commit = described_class.new(commit)
expect(gpg_commit).to receive(:using_keychain).and_call_original
gpg_commit.signature
# consecutive call
expect(gpg_commit).not_to receive(:using_keychain).and_call_original
gpg_commit.signature
end
end
let!(:project) { create :project, :repository, path: 'sample-project' }
let!(:commit_sha) { '0beec7b5ea3f0fdbc95d0dd47f3c5bc275da8a33' }
context 'unsigned commit' do
let!(:commit) { create :commit, project: project, sha: commit_sha }
it 'returns nil' do
expect(described_class.new(commit).signature).to be_nil
end
end
context 'invalid signature' do
let!(:commit) { create :commit, project: project, sha: commit_sha, committer_email: GpgHelpers::User1.emails.first }
let!(:user) { create(:user, email: GpgHelpers::User1.emails.first) }
before do
allow(Gitlab::Git::Commit).to receive(:extract_signature_lazily)
.with(Gitlab::Git::Repository, commit_sha)
.and_return(
[
# Corrupt the key
GpgHelpers::User1.signed_commit_signature.tr('=', 'a'),
GpgHelpers::User1.signed_commit_base_data
]
)
end
it 'returns nil' do
expect(described_class.new(commit).signature).to be_nil
end
end
context 'known key' do
context 'user matches the key uid' do
context 'user email matches the email committer' do
let!(:commit) { create :commit, project: project, sha: commit_sha, committer_email: GpgHelpers::User1.emails.first }
let!(:user) { create(:user, email: GpgHelpers::User1.emails.first) }
let!(:gpg_key) do
create :gpg_key, key: GpgHelpers::User1.public_key, user: user
end
before do
allow(Gitlab::Git::Commit).to receive(:extract_signature_lazily)
.with(Gitlab::Git::Repository, commit_sha)
.and_return(
[
GpgHelpers::User1.signed_commit_signature,
GpgHelpers::User1.signed_commit_base_data
]
)
end
it 'returns a valid signature' do
signature = described_class.new(commit).signature
expect(signature).to have_attributes(
commit_sha: commit_sha,
project: project,
gpg_key: gpg_key,
gpg_key_primary_keyid: GpgHelpers::User1.primary_keyid,
gpg_key_user_name: GpgHelpers::User1.names.first,
gpg_key_user_email: GpgHelpers::User1.emails.first,
verification_status: 'verified'
)
expect(signature.persisted?).to be_truthy
end
it_behaves_like 'returns the cached signature on second call'
context 'read-only mode' do
before do
allow(Gitlab::Database).to receive(:read_only?).and_return(true)
end
it 'does not create a cached signature' do
signature = described_class.new(commit).signature
expect(signature).to have_attributes(
commit_sha: commit_sha,
project: project,
gpg_key: gpg_key,
gpg_key_primary_keyid: GpgHelpers::User1.primary_keyid,
gpg_key_user_name: GpgHelpers::User1.names.first,
gpg_key_user_email: GpgHelpers::User1.emails.first,
verification_status: 'verified'
)
expect(signature.persisted?).to be_falsey
end
end
end
context 'commit signed with a subkey' do
let!(:commit) { create :commit, project: project, sha: commit_sha, committer_email: GpgHelpers::User3.emails.first }
let!(:user) { create(:user, email: GpgHelpers::User3.emails.first) }
let!(:gpg_key) do
create :gpg_key, key: GpgHelpers::User3.public_key, user: user
end
let(:gpg_key_subkey) do
gpg_key.subkeys.find_by(fingerprint: '0522DD29B98F167CD8421752E38FFCAF75ABD92A')
end
before do
allow(Gitlab::Git::Commit).to receive(:extract_signature_lazily)
.with(Gitlab::Git::Repository, commit_sha)
.and_return(
[
GpgHelpers::User3.signed_commit_signature,
GpgHelpers::User3.signed_commit_base_data
]
)
end
it 'returns a valid signature' do
expect(described_class.new(commit).signature).to have_attributes(
commit_sha: commit_sha,
project: project,
gpg_key: gpg_key_subkey,
gpg_key_primary_keyid: gpg_key_subkey.keyid,
gpg_key_user_name: GpgHelpers::User3.names.first,
gpg_key_user_email: GpgHelpers::User3.emails.first,
verification_status: 'verified'
)
end
it_behaves_like 'returns the cached signature on second call'
end
context 'user email does not match the committer email, but is the same user' do
let!(:commit) { create :commit, project: project, sha: commit_sha, committer_email: GpgHelpers::User2.emails.first }
let(:user) do
create(:user, email: GpgHelpers::User1.emails.first).tap do |user|
create :email, user: user, email: GpgHelpers::User2.emails.first
end
end
let!(:gpg_key) do
create :gpg_key, key: GpgHelpers::User1.public_key, user: user
end
before do
allow(Gitlab::Git::Commit).to receive(:extract_signature_lazily)
.with(Gitlab::Git::Repository, commit_sha)
.and_return(
[
GpgHelpers::User1.signed_commit_signature,
GpgHelpers::User1.signed_commit_base_data
]
)
end
it 'returns an invalid signature' do
expect(described_class.new(commit).signature).to have_attributes(
commit_sha: commit_sha,
project: project,
gpg_key: gpg_key,
gpg_key_primary_keyid: GpgHelpers::User1.primary_keyid,
gpg_key_user_name: GpgHelpers::User1.names.first,
gpg_key_user_email: GpgHelpers::User1.emails.first,
verification_status: 'same_user_different_email'
)
end
it_behaves_like 'returns the cached signature on second call'
end
context 'user email does not match the committer email' do
let!(:commit) { create :commit, project: project, sha: commit_sha, committer_email: GpgHelpers::User2.emails.first }
let(:user) { create(:user, email: GpgHelpers::User1.emails.first) }
let!(:gpg_key) do
create :gpg_key, key: GpgHelpers::User1.public_key, user: user
end
before do
allow(Gitlab::Git::Commit).to receive(:extract_signature_lazily)
.with(Gitlab::Git::Repository, commit_sha)
.and_return(
[
GpgHelpers::User1.signed_commit_signature,
GpgHelpers::User1.signed_commit_base_data
]
)
end
it 'returns an invalid signature' do
expect(described_class.new(commit).signature).to have_attributes(
commit_sha: commit_sha,
project: project,
gpg_key: gpg_key,
gpg_key_primary_keyid: GpgHelpers::User1.primary_keyid,
gpg_key_user_name: GpgHelpers::User1.names.first,
gpg_key_user_email: GpgHelpers::User1.emails.first,
verification_status: 'other_user'
)
end
it_behaves_like 'returns the cached signature on second call'
end
end
context 'user does not match the key uid' do
let!(:commit) { create :commit, project: project, sha: commit_sha }
let(:user) { create(:user, email: GpgHelpers::User2.emails.first) }
let!(:gpg_key) do
create :gpg_key, key: GpgHelpers::User1.public_key, user: user
end
before do
allow(Gitlab::Git::Commit).to receive(:extract_signature_lazily)
.with(Gitlab::Git::Repository, commit_sha)
.and_return(
[
GpgHelpers::User1.signed_commit_signature,
GpgHelpers::User1.signed_commit_base_data
]
)
end
it 'returns an invalid signature' do
expect(described_class.new(commit).signature).to have_attributes(
commit_sha: commit_sha,
project: project,
gpg_key: gpg_key,
gpg_key_primary_keyid: GpgHelpers::User1.primary_keyid,
gpg_key_user_name: GpgHelpers::User1.names.first,
gpg_key_user_email: GpgHelpers::User1.emails.first,
verification_status: 'unverified_key'
)
end
it_behaves_like 'returns the cached signature on second call'
end
end
context 'unknown key' do
let!(:commit) { create :commit, project: project, sha: commit_sha }
before do
allow(Gitlab::Git::Commit).to receive(:extract_signature_lazily)
.with(Gitlab::Git::Repository, commit_sha)
.and_return(
[
GpgHelpers::User1.signed_commit_signature,
GpgHelpers::User1.signed_commit_base_data
]
)
end
it 'returns an invalid signature' do
expect(described_class.new(commit).signature).to have_attributes(
commit_sha: commit_sha,
project: project,
gpg_key: nil,
gpg_key_primary_keyid: GpgHelpers::User1.primary_keyid,
gpg_key_user_name: nil,
gpg_key_user_email: nil,
verification_status: 'unknown_key'
)
end
it_behaves_like 'returns the cached signature on second call'
end
end
end