Add new configuration setting to enable/disable HTML emails.24880-configurable-plaintext-emails

This new global setting will allow admins to specify if HTML emails should be sent or not,
this is basically useful when system administrators want to save some disk space by avoiding
emails in HTML format and using only the Plain Text version.

1 files changed, 13 insertions, 0 deletions

diff --git a/lib/email_template_interceptor.rb b/lib/email_template_interceptor.rb
new file mode 100644
index 00000000000..fb04a7824b8
--- /dev/null
+++ b/lib/email_template_interceptor.rb
@@ -0,0 +1,13 @@
+# Read about interceptors in http://guides.rubyonrails.org/action_mailer_basics.html#intercepting-emails
+class EmailTemplateInterceptor
+  include Gitlab::CurrentSettings
+
+  def self.delivering_email(message)
+    # Remove HTML part if HTML emails are disabled.
+    unless current_application_settings.html_emails_enabled
+      message.part.delete_if do |part|
+        part.content_type.try(:start_with?, 'text/html')
+      end
+    end
+  end
+end