Move SMTP server from messages plugin into core

lib/foodsoft_mail_receiver.rb

@@ -0,0 +1,45 @@
+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)
+    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.foodcoops.include? m[:foodcoop]
+    FoodsoftConfig.select_multifoodcoop m[:foodcoop]
+
+    @@registered_classes.each do |klass|
+      klass_m = klass.regexp.match(m[:address])
+      return klass.new.received klass_m, data if klass_m
+    end
+
+    raise "invalid format for recipient"
+  end
+
+  def start
+    super
+  end
+
+  private
+
+  def on_message_data_event(ctx)
+    puts ctx[:envelope][:to]
+    ctx[:envelope][:to].each do |to|
+      begin
+        m = /<(?<recipient>[^<>]+)>/.match(to)
+        raise "invalid format for RCPT TO" if m.nil?
+        FoodsoftMailReceiver.received(m[:recipient], ctx[:message][:data])
+      rescue => error
+        Rails.logger.warn "Can't deliver mail to #{to}: #{error.message}"
+      end
+    end
+  end
+
+end

lib/tasks/foodsoft.rake

@@ -43,6 +43,21 @@ namespace :foodsoft do
       rake_say "created until #{created_until}"
     end
   end
+
+  desc "Parse incoming email on stdin (options: RECIPIENT=foodcoop.handling)"
+  task :parse_reply_email => :environment do
+    FoodsoftMailReceiver.received ENV['RECIPIENT'], STDIN.read
+  end
+
+  desc "Start STMP server for incoming email (options: SMTP_SERVER_PORT=2525, SMTP_SERVER_HOST=0.0.0.0)"
+  task :reply_email_smtp_server => :environment do
+    port = ENV['SMTP_SERVER_PORT'].present? ? ENV['SMTP_SERVER_PORT'].to_i : 2525
+    host = ENV['SMTP_SERVER_HOST']
+    rake_say "Started SMTP server for incoming email on port #{port}."
+    server = FoodsoftMailReceiver.new port, host
+    server.start
+    server.join
+  end
 end
 
 # Helper