UTF-8 encoding problem with email subjects (#9922) · Issues · gpt / large_projects / gitlabhq1

UTF-8 encoding problem with email subjects

Created by: UnderGreen

git@gitlab:~/gitlab$ bundle exec rake gitlab:env:info RAILS_ENV=production

System information
System:     Ubuntu 14.04
Current User:   git
Using RVM:  no
Ruby Version:   2.1.7p400
Gem Version:    2.2.5
Bundler Version:1.7.9
Rake Version:   10.4.2
Sidekiq Version:3.3.0

GitLab information
Version:    8.0.5
Revision:   2c03667
Directory:  /var/www/git/gitlab
DB Adapter: postgresql
URL:        https://gitlab.example.ru
HTTP Clone URL: https://gitlab.example.ru/some-group/some-project.git
SSH Clone URL:  [email protected]:some-group/some-project.git
Using LDAP: yes
Using Omniauth: no

GitLab Shell
Version:    2.6.5
Repositories:   /var/www/git/repositories/
Hooks:      /var/www/git/gitlab-shell/hooks/
Git:        /usr/bin/git

Email from Gitlab have broken subject field, for example:

From: =?UTF-8?B?0JfQsNC90LjQvSDQkNC70LXQutGB0LXQuSDQkNC90LDRgtC+0LvRjNC10LLQ?=
 =?UTF-8?B?uNGH?= <[email protected]>

First row encoding "Занин Алексей Анатольев�", second - "�ч". Between "в" and "ч" we have return, but it's wrong behavior, because RFC 2047, §5 says:

Each 'encoded-word' MUST represent an integral number of characters. 
A multi-octet character may not be split across adjacent 'encoded-word's.