discourse/app/jobs/scheduled/poll_mailbox.rb

91 lines
3.8 KiB
Ruby

require 'net/pop'
require_dependency 'email/receiver'
require_dependency 'email/sender'
require_dependency 'email/message_builder'
module Jobs
class PollMailbox < Jobs::Scheduled
every SiteSetting.pop3_polling_period_mins.minutes
sidekiq_options retry: false
include Email::BuildEmailHelper
def execute(args)
@args = args
poll_pop3 if should_poll?
end
def should_poll?
return false if Rails.env.development? && ENV["POLL_MAILBOX"].nil?
SiteSetting.pop3_polling_enabled?
end
def process_popmail(popmail)
begin
mail_string = popmail.pop
Email::Receiver.new(mail_string).process
rescue => e
handle_failure(mail_string, e)
end
end
def handle_failure(mail_string, e)
Rails.logger.warn("Email can not be processed: #{e}\n\n#{mail_string}") if SiteSetting.log_mail_processing_failures
message_template = case e
when Email::Receiver::EmptyEmailError then :email_reject_empty
when Email::Receiver::NoBodyDetectedError then :email_reject_empty
when Email::Receiver::NoMessageIdError then :email_reject_no_message_id
when Email::Receiver::AutoGeneratedEmailError then :email_reject_auto_generated
when Email::Receiver::InactiveUserError then :email_reject_inactive_user
when Email::Receiver::BlockedUserError then :email_reject_blocked_user
when Email::Receiver::BadDestinationAddress then :email_reject_bad_destination_address
when Email::Receiver::StrangersNotAllowedError then :email_reject_strangers_not_allowed
when Email::Receiver::InsufficientTrustLevelError then :email_reject_insufficient_trust_level
when Email::Receiver::ReplyUserNotMatchingError then :email_reject_reply_user_not_matching
when Email::Receiver::TopicNotFoundError then :email_reject_topic_not_found
when Email::Receiver::TopicClosedError then :email_reject_topic_closed
when Email::Receiver::InvalidPost then :email_reject_invalid_post
when ActiveRecord::Rollback then :email_reject_invalid_post
when Email::Receiver::InvalidPostAction then :email_reject_invalid_post_action
when Discourse::InvalidAccess then :email_reject_invalid_access
end
template_args = {}
# there might be more information available in the exception
if message_template == :email_reject_invalid_post && e.message.size > 6
message_template = :email_reject_invalid_post_specified
template_args[:post_error] = e.message
end
if message_template
# inform the user about the rejection
message = Mail::Message.new(mail_string)
template_args[:former_title] = message.subject
template_args[:destination] = message.to
template_args[:site_name] = SiteSetting.title
client_message = RejectionMailer.send_rejection(message_template, message.from, template_args)
Email::Sender.new(client_message, message_template).send
else
Discourse.handle_job_exception(e, error_context(@args, "Unrecognized error type when processing incoming email", mail: mail_string))
end
end
def poll_pop3
pop3 = Net::POP3.new(SiteSetting.pop3_polling_host, SiteSetting.pop3_polling_port)
pop3.enable_ssl if SiteSetting.pop3_polling_ssl
pop3.start(SiteSetting.pop3_polling_username, SiteSetting.pop3_polling_password) do |pop|
pop.delete_all do |p|
process_popmail(p)
end
end
rescue Net::POPAuthenticationError => e
Discourse.handle_job_exception(e, error_context(@args, "Signing in to poll incoming email"))
end
end
end