require 'spec_helper' describe Gitlab::Workhorse, lib: true do let(:project) { create(:project) } let(:repository) { project.repository } def decode_workhorse_header(array) key, value = array command, encoded_params = value.split(":") params = JSON.parse(Base64.urlsafe_decode64(encoded_params)) [key, command, params] end describe ".send_git_archive" do context "when the repository doesn't have an archive file path" do before do allow(project.repository).to receive(:archive_metadata).and_return(Hash.new) end it "raises an error" do expect { described_class.send_git_archive(project.repository, ref: "master", format: "zip") }.to raise_error(RuntimeError) end end end describe '.send_git_patch' do let(:diff_refs) { double(base_sha: "base", head_sha: "head") } subject { described_class.send_git_patch(repository, diff_refs) } it 'sets the header correctly' do key, command, params = decode_workhorse_header(subject) expect(key).to eq("Gitlab-Workhorse-Send-Data") expect(command).to eq("git-format-patch") expect(params).to eq("RepoPath" => repository.path_to_repo, "ShaFrom" => "base", "ShaTo" => "head") end end describe '.terminal_websocket' do def terminal(ca_pem: nil) out = { subprotocols: ['foo'], url: 'wss://example.com/terminal.ws', headers: { 'Authorization' => ['Token x'] } } out[:ca_pem] = ca_pem if ca_pem out end def workhorse(ca_pem: nil) out = { 'Terminal' => { 'Subprotocols' => ['foo'], 'Url' => 'wss://example.com/terminal.ws', 'Header' => { 'Authorization' => ['Token x'] } } } out['Terminal']['CAPem'] = ca_pem if ca_pem out end context 'without ca_pem' do subject { Gitlab::Workhorse.terminal_websocket(terminal) } it { is_expected.to eq(workhorse) } end context 'with ca_pem' do subject { Gitlab::Workhorse.terminal_websocket(terminal(ca_pem: "foo")) } it { is_expected.to eq(workhorse(ca_pem: "foo")) } end end describe '.send_git_diff' do let(:diff_refs) { double(base_sha: "base", head_sha: "head") } subject { described_class.send_git_patch(repository, diff_refs) } it 'sets the header correctly' do key, command, params = decode_workhorse_header(subject) expect(key).to eq("Gitlab-Workhorse-Send-Data") expect(command).to eq("git-format-patch") expect(params).to eq("RepoPath" => repository.path_to_repo, "ShaFrom" => "base", "ShaTo" => "head") end end describe ".secret" do subject { described_class.secret } before do described_class.instance_variable_set(:@secret, nil) described_class.write_secret end it 'returns 32 bytes' do expect(subject).to be_a(String) expect(subject.length).to eq(32) expect(subject.encoding).to eq(Encoding::ASCII_8BIT) end it 'accepts a trailing newline' do open(described_class.secret_path, 'a') { |f| f.write "\n" } expect(subject.length).to eq(32) end it 'raises an exception if the secret file cannot be read' do File.delete(described_class.secret_path) expect { subject }.to raise_exception(Errno::ENOENT) end it 'raises an exception if the secret file contains the wrong number of bytes' do File.truncate(described_class.secret_path, 0) expect { subject }.to raise_exception(RuntimeError) end end describe ".write_secret" do let(:secret_path) { described_class.secret_path } before do begin File.delete(secret_path) rescue Errno::ENOENT end described_class.write_secret end it 'uses mode 0600' do expect(File.stat(secret_path).mode & 0777).to eq(0600) end it 'writes base64 data' do bytes = Base64.strict_decode64(File.read(secret_path)) expect(bytes).not_to be_empty end end describe '#verify_api_request!' do let(:header_key) { described_class::INTERNAL_API_REQUEST_HEADER } let(:payload) { { 'iss' => 'gitlab-workhorse' } } it 'accepts a correct header' do headers = { header_key => JWT.encode(payload, described_class.secret, 'HS256') } expect { call_verify(headers) }.not_to raise_error end it 'raises an error when the header is not set' do expect { call_verify({}) }.to raise_jwt_error end it 'raises an error when the header is not signed' do headers = { header_key => JWT.encode(payload, nil, 'none') } expect { call_verify(headers) }.to raise_jwt_error end it 'raises an error when the header is signed with the wrong key' do headers = { header_key => JWT.encode(payload, 'wrongkey', 'HS256') } expect { call_verify(headers) }.to raise_jwt_error end it 'raises an error when the issuer is incorrect' do payload['iss'] = 'somebody else' headers = { header_key => JWT.encode(payload, described_class.secret, 'HS256') } expect { call_verify(headers) }.to raise_jwt_error end def raise_jwt_error raise_error(JWT::DecodeError) end def call_verify(headers) described_class.verify_api_request!(headers) end end end