require 'mail' require 'midi-smtp-server' class FoodsoftMailReceiver < MidiSmtpServer::Smtpd @@registered_classes = Set.new def self.register(klass) @@registered_classes.add klass end def self.received(recipient, data) find_handler(recipient).call(data) end def start super @handlers = [] end private def on_rcpt_to_event(_ctx, rcpt_to) recipient = rcpt_to.gsub(/^\s*<\s*(.*)\s*>\s*$/, '\1') @handlers << self.class.find_handler(recipient) rcpt_to rescue => error logger.info("Can not accept mail for '#{rcpt_to}': #{error}") raise MidiSmtpServer::Smtpd550Exception end def on_message_data_event(ctx) @handlers.each do |handler| handler.call(ctx[:message][:data]) end rescue => error ExceptionNotifier.notify_exception(error, data: ctx) raise error ensure @handlers.clear end def self.find_handler(recipient) m = /(?[^@.]+)\.(?
[^@]+)(@(?[^@]+))?/.match recipient raise "recipient is missing or has an invalid format" if m.nil? raise "Foodcoop '#{m[:foodcoop]}' could not be found" unless FoodsoftConfig.allowed_foodcoop? m[:foodcoop] FoodsoftConfig.select_multifoodcoop m[:foodcoop] @@registered_classes.each do |klass| if match = klass.regexp.match(m[:address]) handler = klass.new match return ->(data) { handler.received(data) } end end raise "invalid format for recipient" end end