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# frozen_string_literal: true
module Auth
class DependencyProxyAuthenticationService < BaseService
AUDIENCE = 'dependency_proxy'
HMAC_KEY = 'gitlab-dependency-proxy'
DEFAULT_EXPIRE_TIME = 1.minute
def execute(authentication_abilities:)
return error('dependency proxy not enabled', 404) unless ::Gitlab.config.dependency_proxy.enabled
return error('access forbidden', 403) unless valid_user_actor?
{ token: authorized_token.encoded }
end
class << self
include ::Gitlab::Utils::StrongMemoize
def secret
strong_memoize(:secret) do
OpenSSL::HMAC.hexdigest(
'sha256',
::Settings.attr_encrypted_db_key_base,
HMAC_KEY
)
end
end
def token_expire_at
Time.current + Gitlab::CurrentSettings.container_registry_token_expire_delay.minutes
end
end
private
def valid_user_actor?
current_user || valid_deploy_token?
end
def valid_deploy_token?
deploy_token && deploy_token.valid_for_dependency_proxy?
end
def authorized_token
JSONWebToken::HMACToken.new(self.class.secret).tap do |token|
token['user_id'] = current_user.id if current_user
token['deploy_token'] = deploy_token.token if deploy_token
token.expire_time = self.class.token_expire_at
end
end
def deploy_token
params[:deploy_token]
end
end
end
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