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module Gaffe
class ErrorsControllerResolver
# Accessors
attr_reader :controller
# Constants
BUILTIN_CONTROLLER = lambda do
require 'gaffe/errors_controller'
Gaffe::ErrorsController
end
def initialize(env)
@env = env
end
def resolved_controller
# Use the configured controller first
controller = Gaffe.configuration.errors_controller
# Parse the request if multiple controllers are configured
controller = request_controller(controller) if controller.is_a?(Hash)
# Fall back on the builtin errors controller
controller ||= BUILTIN_CONTROLLER.call
# Make sure we return a Class
controller.respond_to?(:constantize) ? controller.constantize : controller
end
private
def request_controller(controllers)
matched_controllers = controllers.find do |pattern, _|
relative_url = @env['REQUEST_URI']
absolute_url = @env['HTTP_HOST'] + relative_url
[relative_url, absolute_url].any? { |url| (url =~ pattern).present? }
end
matched_controllers.try(:last)
end
end
end
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