From 4edc30d157b06be04b51474ab23be9dd3855b56e Mon Sep 17 00:00:00 2001
From: Jean-Philippe Lang <jp_lang@yahoo.fr>
Date: Fri, 13 Apr 2012 16:55:04 +0000
Subject: [PATCH] Ignore emails with Auto-Submitted: auto-replied header
 (#10607).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@9390 e93f8b46-1217-0410-a6f0-8f06a7374b81
---
 app/models/mail_handler.rb     | 19 ++++++++++++++-----
 test/unit/mail_handler_test.rb | 18 ++++++++++++------
 2 files changed, 26 insertions(+), 11 deletions(-)

diff --git a/app/models/mail_handler.rb b/app/models/mail_handler.rb
index e0c12f1a0..e920dbd5f 100644
--- a/app/models/mail_handler.rb
+++ b/app/models/mail_handler.rb
@@ -42,6 +42,12 @@ class MailHandler < ActionMailer::Base
     super email
   end
 
+  cattr_accessor :ignored_emails_headers
+  @@ignored_emails_headers = {
+    'X-Auto-Response-Suppress' => 'OOF',
+    'Auto-Submitted' => 'auto-replied'
+  }
+
   # Processes incoming emails
   # Returns the created object (eg. an issue, a message) or false
   def receive(email)
@@ -54,12 +60,15 @@ class MailHandler < ActionMailer::Base
       end
       return false
     end
-    # Ignore out-of-office emails
-    if email.header_string("X-Auto-Response-Suppress") == 'OOF'
-      if logger && logger.info
-        logger.info  "MailHandler: ignoring out-of-office email"
+    # Ignore auto generated emails
+    self.class.ignored_emails_headers.each do |key, ignored_value|
+      value = email.header_string(key)
+      if value && value.to_s.downcase == ignored_value.downcase
+        if logger && logger.info
+          logger.info "MailHandler: ignoring email with #{key}:#{value} header"
+        end
+        return false
       end
-      return false
     end
     @user = User.find_by_mail(sender_email) if sender_email.present?
     if @user && !@user.active?
diff --git a/test/unit/mail_handler_test.rb b/test/unit/mail_handler_test.rb
index 645a6f15f..73a93088d 100644
--- a/test/unit/mail_handler_test.rb
+++ b/test/unit/mail_handler_test.rb
@@ -359,12 +359,18 @@ class MailHandlerTest < ActiveSupport::TestCase
     end
   end
 
-  def test_should_ignore_oof_emails
-    raw = IO.read(File.join(FIXTURES_PATH, 'ticket_on_given_project.eml'))
-    raw = "X-Auto-Response-Suppress: OOF\n" + raw
-
-    assert_no_difference 'Issue.count' do
-      assert_equal false, MailHandler.receive(raw)
+  def test_should_ignore_auto_replied_emails
+    [
+      "X-Auto-Response-Suppress: OOF",
+      "Auto-Submitted: auto-replied",
+      "Auto-Submitted: Auto-Replied"
+    ].each do |header|
+      raw = IO.read(File.join(FIXTURES_PATH, 'ticket_on_given_project.eml'))
+      raw = header + "\n" + raw
+  
+      assert_no_difference 'Issue.count' do
+        assert_equal false, MailHandler.receive(raw), "email with #{header} header was not ignored"
+      end
     end
   end