Accept email from anonymous users with an empty from address. #5604

Contributed by Andrew Fenn

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@3783 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/mail_handler.rb

@@ -49,7 +49,7 @@ class MailHandler < ActionMailer::Base
       logger.info  "MailHandler: ignoring email from Redmine emission address [#{sender_email}]" if logger && logger.info
       return false
     end
-    @user = User.find_by_mail(sender_email)
+    @user = User.find_by_mail(sender_email) if sender_email.present?
     if @user && !@user.active?
       logger.info  "MailHandler: ignoring email from non-active user [#{@user.login}]" if logger && logger.info
       return false

test/fixtures/mail_handler/ticket_by_empty_user.eml

@@ -0,0 +1,17 @@
+Return-Path: <john.doe@somenet.foo>
+Received: from osiris ([127.0.0.1])
+	by OSIRIS
+	with hMailServer ; Sun, 22 Jun 2008 12:28:07 +0200
+Message-ID: <000501c8d452$a95cd7e0$0a00a8c0@osiris>
+To: <redmine@somenet.foo>
+Subject: Ticket by unknown user
+Date: Sun, 22 Jun 2008 12:28:07 +0200
+MIME-Version: 1.0
+Content-Type: text/plain;
+	format=flowed;
+	charset="iso-8859-1";
+	reply-type=original
+Content-Transfer-Encoding: 7bit
+
+This is a ticket submitted by an unknown user.
+

test/unit/mail_handler_test.rb

@@ -170,6 +170,15 @@ class MailHandlerTest < ActiveSupport::TestCase
     end
   end
 
+  def test_add_issue_by_anonymous_user_with_no_from_address
+    Role.anonymous.add_permission!(:add_issues)
+    assert_no_difference 'User.count' do
+      issue = submit_email('ticket_by_empty_user.eml', :issue => {:project => 'ecookbook'}, :unknown_user => 'accept')
+      assert issue.is_a?(Issue)
+      assert issue.author.anonymous?
+    end
+  end
+  
   def test_add_issue_by_anonymous_user_on_private_project
     Role.anonymous.add_permission!(:add_issues)
     assert_no_difference 'User.count' do