foodsoft/lib/foodsoft_mail_receiver.rb
2021-03-02 09:12:19 +01:00

60 lines
1.5 KiB
Ruby

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)
begin
@handlers.each do |handler|
handler.call(ctx[:message][:data])
end
rescue => error
ExceptionNotifier.notify_exception(error, data: ctx)
raise error
ensure
@handlers.clear
end
end
def self.find_handler(recipient)
m = /(?<foodcoop>[^@\.]+)\.(?<address>[^@]+)(@(?<hostname>[^@]+))?/.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 lambda { |data| handler.received(data) }
end
end
raise "invalid format for recipient"
end
end