debian-mirror-gitlab/spec/requests/jwks_controller_spec.rb

# frozen_string_literal: true

require 'spec_helper'

RSpec.describe JwksController, feature_category: :system_access do
  describe 'Endpoints from the parent Doorkeeper::OpenidConnect::DiscoveryController' do
    it 'respond successfully' do
      [
        "/oauth/discovery/keys",
        "/.well-known/openid-configuration",
        "/.well-known/webfinger?resource=#{create(:user).email}"
      ].each do |endpoint|
        get endpoint

        expect(response).to have_gitlab_http_status(:ok)
      end
    end
  end

  describe 'GET /-/jwks' do
    let_it_be(:ci_jwt_signing_key) { OpenSSL::PKey::RSA.generate(3072) }
    let_it_be(:ci_jwk) { ci_jwt_signing_key.to_jwk }
    let_it_be(:oidc_jwk) { OpenSSL::PKey::RSA.new(Rails.application.secrets.openid_connect_signing_key).to_jwk }

    before do
      stub_application_setting(ci_jwt_signing_key: ci_jwt_signing_key.to_s)
    end

    it 'returns signing keys used to sign CI_JOB_JWT' do
      get jwks_url

      expect(response).to have_gitlab_http_status(:ok)

      ids = json_response['keys'].map { |jwk| jwk['kid'] }
      expect(ids).to contain_exactly(ci_jwk['kid'], oidc_jwk['kid'])
    end

    it 'includes the OIDC signing key ID' do
      get jwks_url

      expect(response).to have_gitlab_http_status(:ok)

      ids = json_response['keys'].map { |jwk| jwk['kid'] }
      expect(ids).to include(Doorkeeper::OpenidConnect.signing_key_normalized.symbolize_keys[:kid])
    end

    it 'does not leak private key data' do
      get jwks_url

      aggregate_failures do
        json_response['keys'].each do |jwk|
          expect(jwk.keys).to contain_exactly('kty', 'kid', 'e', 'n', 'use', 'alg')
          expect(jwk['use']).to eq('sig')
          expect(jwk['alg']).to eq('RS256')
        end
      end
    end
  end
end