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module Padrino
module Admin
module Helpers
##
# Common helpers used for authorization within an application.
#
module AuthenticationHelpers
##
# Returns true if +current_account+ is logged and active.
#
def logged_in?
!current_account.nil?
end
##
# Returns the current_account, it's an instance of Account model.
#
def current_account
@current_account ||= login_from_session
end
##
# Override the current_account, you must provide an instance of Account model.
#
# @example
# set_current_account(Account.authenticate(params[:email], params[:password])
#
def set_current_account(account=nil)
session[settings.session_id] = account ? account.id : nil
@current_account = account
end
##
# Returns true if the +current_account+ is allowed to see the requested path.
#
# For configure this role please refer to: +Padrino::Admin::AccessControl::Base+
#
def allowed?
access_control.allowed?(current_account, request.path_info)
end
##
# Returns project modules for the current account.
#
def project_modules
access_control.project_modules(current_account)
end
##
# Returns a helper useful in a +before_filter+ for check if
# an account are: +logged_in?+ and +allowed?+
#
# By default this method is used in Admin Apps.
#
def login_required
unless allowed?
store_location! if store_location
access_denied
end
end
##
# Store in session[:return_to] the env['REQUEST_URI'].
#
def store_location!
session[:return_to] = "#{ENV['RACK_BASE_URI']}#{env['REQUEST_URI']}" if env['REQUEST_URI']
end
##
# Redirect the account to the page that requested an authentication or
# if the account is not allowed/logged return it to a default page.
#
def redirect_back_or_default(default)
return_to = session.delete(:return_to)
redirect(return_to || default)
end
private
def access_denied
if login_page
redirect url(login_page)
else
halt 401, "You don't have permission for this resource"
end
end
def login_page
settings.respond_to?(:login_page) && settings.login_page
end
def store_location
settings.respond_to?(:store_location) && settings.store_location
end
def login_from_session
admin_model_obj.find_by_id(session[settings.session_id]) if admin_model_obj
end
def admin_model_obj
@_admin_model_obj ||= settings.admin_model.constantize
rescue NameError
raise Padrino::Admin::AccessControlError, "You must define an #{settings.admin_model} Model"
end
end
end
end
end