module Auth class ContainerRegistryAuthenticationService < BaseService include Gitlab::CurrentSettings AUDIENCE = 'container_registry' def execute return error('not found', 404) unless registry.enabled unless current_user || project return error('forbidden', 403) unless scope end { token: authorized_token(scope).encoded } end def self.full_access_token(*names) registry = Gitlab.config.registry token = JSONWebToken::RSAToken.new(registry.key) token.issuer = registry.issuer token.audience = AUDIENCE token.expire_time = token_expire_at token[:access] = names.map do |name| { type: 'repository', name: name, actions: %w(*) } end token.encoded end private def authorized_token(*accesses) token = JSONWebToken::RSAToken.new(registry.key) token.issuer = registry.issuer token.audience = params[:service] token.subject = current_user.try(:username) token.expire_time = ContainerRegistryAuthenticationService.token_expire_at token[:access] = accesses.compact token end def scope return unless params[:scope] @scope ||= process_scope(params[:scope]) end def process_scope(scope) type, name, actions = scope.split(':', 3) actions = actions.split(',') return unless type == 'repository' process_repository_access(type, name, actions) end def process_repository_access(type, name, actions) requested_project = Project.find_with_namespace(name) return unless requested_project actions = actions.select do |action| can_access?(requested_project, action) end { type: type, name: name, actions: actions } if actions.present? end def can_access?(requested_project, requested_action) return false unless requested_project.container_registry_enabled? case requested_action when 'pull' requested_project == project || can?(current_user, :read_container_image, requested_project) when 'push' requested_project == project || can?(current_user, :create_container_image, requested_project) else false end end def registry Gitlab.config.registry end def self.token_expire_at Time.now + current_application_settings.container_registry_token_expire_delay.minutes end end end