Make handle-mail-replies bundler-aware too

1 files changed, 3 insertions, 179 deletions

diff --git a/script/handle-mail-replies b/script/handle-mail-replies
index 7590f5848..ad4b3719e 100755
--- a/script/handle-mail-replies
+++ b/script/handle-mail-replies
@@ -1,180 +1,4 @@
-#!/usr/bin/env ruby
-# -*- coding: utf-8 -*-
+#!/bin/bash
 
-# Handle email responses sent to us.
-#
-# This script is invoked as a pipe command, i.e. with the raw email message on stdin.
-# - If a message is identified as a permanent bounce, the user is marked as having a
-#   bounced address, and will not be sent any more messages.
-# - If a message is identified as an out-of-office autoreply, it is discarded.
-# - Any other messages are forwarded to config.get("FORWARD_NONBOUNCE_RESPONSES_TO")
-
-
-# We want to avoid loading rails unless we need it, so we start by just loading the
-# config file ourselves.
-$alaveteli_dir = File.join(File.dirname(__FILE__), '..')
-$:.push(File.join($alaveteli_dir, "commonlib", "rblib"))
-load "config.rb"
-MySociety::Config.set_file(File.join($alaveteli_dir, 'config', 'general'), true)
-MySociety::Config.load_default
-
-require 'action_mailer'
-
-def main(in_test_mode)
-    Dir.chdir($alaveteli_dir) do
-        raw_message = $stdin.read
-        begin
-            message = TMail::Mail.parse(raw_message)
-        rescue
-            # Error parsing message. Just pass it on, to be on the safe side.
-            forward_on(raw_message) unless in_test_mode
-            return 0
-        end
-        
-        pfas = permanently_failed_addresses(message)
-        if !pfas.empty?
-            if in_test_mode
-                puts pfas
-            else
-                pfas.each do |pfa|
-                    record_bounce(pfa, raw_message)
-                end
-            end
-            return 1
-        end
-        
-        # If we are still here, there are no permanent failures,
-        # so if the message is a multipart/report then it must be
-        # reporting a temporary failure. In this case we discard it
-        if message.content_type == "multipart/report"
-          return 1
-        end
-        
-        # Another style of temporary failure message
-        subject = message.header_string("Subject")
-        if message.content_type == "multipart/mixed" && subject == "Delivery Status Notification (Delay)"
-          return 1
-        end
-        
-        # Discard out-of-office messages
-        if is_oof?(message)
-            return 2 # Use a different return code, to distinguish OOFs from bounces
-        end
-        
-        # Otherwise forward the message on
-        forward_on(raw_message) unless in_test_mode
-        return 0
-    end
-end
-
-def permanently_failed_addresses(message)
-    if message.header_string("Return-Path") == "<>"
-        # Some sort of auto-response
-    
-        # Check for Exim’s X-Failed-Recipients header
-        failed_recipients = message.header_string("X-Failed-Recipients")
-        if !failed_recipients.nil?
-            # The X-Failed-Recipients header contains the email address that failed
-            # Check for the words "This is a permanent error." in the body, to indicate
-            # a permanent failure
-            if message.body =~ /This is a permanent error./
-                return failed_recipients.split(/,\s*/)
-            end
-        end
-        
-        # Next, look for multipart/report
-        if message.content_type == "multipart/report"
-            permanently_failed_recipients = []
-            message.parts.each do |part|
-                if part.content_type == "message/delivery-status"
-                    sections = part.body.split(/\r?\n\r?\n/)
-                    # The first section is a generic header; subsequent sections
-                    # represent a particular recipient. Since we 
-                    sections[1..-1].each do |section|
-                        if section !~ /^Status: (\d)/ || $1 != '5'
-                            # Either we couldn’t find the Status field, or it was a transient failure
-                            break
-                        end
-                        if section =~ /^Final-Recipient: rfc822;(.+)/
-                            permanently_failed_recipients.push($1)
-                        end
-                    end
-                end
-            end
-            if !permanently_failed_recipients.empty?
-                return permanently_failed_recipients
-            end
-        end
-    end
-    
-    subject = message.header_string("Subject")
-    # Then look for the style we’ve seen in WebShield bounces
-    # (These do not have a return path of <> in the cases I have seen.)
-    if subject == "Returned Mail: Error During Delivery"
-      if message.body =~ /^\s*---- Failed Recipients ----\s*((?:<[^>]+>\n)+)/
-        return $1.scan(/<([^>]+)>/).flatten
-      end
-    end
-
-    return []
-end
-
-def is_oof?(message)
-    # Check for out-of-office
-    
-    if message.header_string("X-POST-MessageClass") == "9; Autoresponder"
-        return true
-    end
-    
-    subject = message.header_string("Subject").downcase
-    if message.header_string("Return-Path") == "<>"
-        if subject.start_with? "out of office: "
-            return true
-        end
-        if subject.start_with? "automatic reply: "
-            return true
-        end
-    end
-    
-    if message.header_string("Auto-Submitted") == "auto-generated"
-        if subject =~ /out of( the)? office/
-            return true
-        end
-    end
-    
-    if subject.start_with? "out of office autoreply:"
-        return true
-    end
-    if subject == "out of office"
-        return true
-    end
-    if subject == "out of office reply"
-        return true
-    end
-    if subject.end_with? "is out of the office"
-        return true
-    end
-    return false
-end
-
-def forward_on(raw_message)
-    forward_non_bounces_to = MySociety::Config.get("FORWARD_NONBOUNCE_RESPONSES_TO", "user-support@localhost")
-    IO.popen("/usr/sbin/sendmail -i #{forward_non_bounces_to}", "w") do |f|
-        f.write(raw_message);
-        f.close;
-    end
-end
-
-def load_rails
-    require File.join('config', 'boot')
-    require Rails.root + '/config/environment'
-end
-
-def record_bounce(email_address, bounce_message)
-    load_rails
-    User.record_bounce_for_email(email_address, bounce_message)
-end
-
-in_test_mode = (ARGV[0] == "--test")
-status = main(in_test_mode)
-exit(status) if in_test_mode
+cd "`dirname "$0"`"
+exec bundle exec ./handle-mail-replies.rb