discourse/app/jobs/scheduled/poll_mailbox.rb
riking c8d322d1be Include the email subject line in rejection messages
This change has a tradeoff.
It increases our backscatter vulnerability - the subject could have spammy content - but it's extremely valuable to the user to know exactly which message was rejected.
If you sent two at the same time, and only one was rejected, you would have no way of knowing which worked and which to resend without going to the website (which is what email-in is trying to avoid, kinda).
2014-07-17 10:25:53 -07:00

77 lines
2.4 KiB
Ruby

#
# Connects to a mailbox and checks for replies
#
require 'net/pop'
require_dependency 'email/receiver'
require_dependency 'email/sender'
require_dependency 'email/message_builder'
module Jobs
class PollMailbox < Jobs::Scheduled
every SiteSetting.pop3s_polling_period_mins.minutes
sidekiq_options retry: false
include Email::BuildEmailHelper
def execute(args)
if SiteSetting.pop3s_polling_enabled?
poll_pop3s
end
end
def handle_mail(mail)
begin
mail_string = mail.pop
Email::Receiver.new(mail_string).process
rescue => e
message_template = nil
case e
when Email::Receiver::UserNotSufficientTrustLevelError
message_template = :email_reject_trust_level
when Email::Receiver::UserNotFoundError
message_template = :email_reject_no_account
when Email::Receiver::EmptyEmailError
message_template = :email_reject_empty
when Email::Receiver::EmailUnparsableError
message_template = :email_reject_parsing
when Email::Receiver::EmailLogNotFound
message_template = :email_reject_reply_key
when ActiveRecord::Rollback
message_template = :email_reject_post_error
else
message_template = nil
end
if message_template
# inform the user about the rejection
message = Mail::Message.new(mail_string)
client_message = RejectionMailer.send_rejection(message.from, message.body, message.subject, message.to, message_template)
Email::Sender.new(client_message, message_template).send
else
Discourse.handle_exception(e, { code: "unknown error for incoming email", mail: mail_string} )
end
ensure
mail.delete
end
end
def poll_pop3s
if !SiteSetting.pop3s_polling_insecure
Net::POP3.enable_ssl(OpenSSL::SSL::VERIFY_NONE)
end
Net::POP3.start(SiteSetting.pop3s_polling_host,
SiteSetting.pop3s_polling_port,
SiteSetting.pop3s_polling_username,
SiteSetting.pop3s_polling_password) do |pop|
unless pop.mails.empty?
pop.each do |mail|
handle_mail(mail)
end
end
pop.finish
end
rescue Net::POPAuthenticationError => e
Discourse.handle_exception(e, { code: "signing in for incoming email" } )
end
end
end