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# frozen_string_literal: true
module Groups
module DependencyProxy
class ApplicationController < ::ApplicationController
EMPTY_AUTH_RESULT = Gitlab::Auth::Result.new(nil, nil, nil, nil).freeze
delegate :actor, to: :@authentication_result, allow_nil: true
# This allows auth_user to be set in the base ApplicationController
alias_method :authenticated_user, :actor
# We disable `authenticate_user!` since the `DependencyProxy::ApplicationController` performs auth using JWT token
skip_before_action :authenticate_user!, raise: false
prepend_before_action :authenticate_user_from_jwt_token!
def authenticate_user_from_jwt_token!
return unless dependency_proxy_for_private_groups?
authenticate_with_http_token do |token, _|
@authentication_result = EMPTY_AUTH_RESULT
found_user = user_from_token(token)
sign_in(found_user) if found_user.is_a?(User)
end
request_bearer_token! unless authenticated_user
end
private
def dependency_proxy_for_private_groups?
Feature.enabled?(:dependency_proxy_for_private_groups, default_enabled: true)
end
def request_bearer_token!
# unfortunately, we cannot use https://api.rubyonrails.org/classes/ActionController/HttpAuthentication/Token.html#method-i-authentication_request
response.headers['WWW-Authenticate'] = ::DependencyProxy::Registry.authenticate_header
render plain: '', status: :unauthorized
end
def user_from_token(token)
token_payload = ::DependencyProxy::AuthTokenService.decoded_token_payload(token)
if token_payload['user_id']
token_user = User.find(token_payload['user_id'])
return unless token_user
@authentication_result = Gitlab::Auth::Result.new(token_user, nil, :user, [])
return token_user
elsif token_payload['deploy_token']
deploy_token = DeployToken.active.find_by_token(token_payload['deploy_token'])
return unless deploy_token
@authentication_result = Gitlab::Auth::Result.new(deploy_token, nil, :deploy_token, [])
return deploy_token
end
nil
rescue JWT::DecodeError, JWT::ExpiredSignature, JWT::ImmatureSignature
nil
end
end
end
end
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