Add application setting to restrict user signups to e-mail domains

This feature was requested long ago:

http://feedback.gitlab.com/forums/176466-general/suggestions/4118466-ability-to-register-only-from-ceratain-domains

This MR is based off !253 but changed to use application settings and use wildcard strings
to give more flexibility in pattern matching. Regexps seemed overkill and easy to get wrong.

Only restrict e-mail addresses upon creation

1 files changed, 22 insertions, 2 deletions

diff --git a/app/models/application_setting.rb b/app/models/application_setting.rb
index 9406fb91939..f2cebde9705 100644
--- a/app/models/application_setting.rb
+++ b/app/models/application_setting.rb
@@ -18,11 +18,13 @@
 #  restricted_visibility_levels :text
 #  max_attachment_size          :integer          default(10)
 #  default_project_visibility   :integer
-#  default_snippet_visibility   :integer
+#  restricted_signup_domains    :text
 #
 
 class ApplicationSetting < ActiveRecord::Base
   serialize :restricted_visibility_levels
+  serialize :restricted_signup_domains, Array
+  attr_accessor :restricted_signup_domains_raw
 
   validates :home_page_url,
     allow_blank: true,
@@ -55,11 +57,29 @@ class ApplicationSetting < ActiveRecord::Base
       restricted_visibility_levels: Settings.gitlab['restricted_visibility_levels'],
       max_attachment_size: Settings.gitlab['max_attachment_size'],
       default_project_visibility: Settings.gitlab.default_projects_features['visibility_level'],
-      default_snippet_visibility: Settings.gitlab.default_projects_features['visibility_level']
+      default_snippet_visibility: Settings.gitlab.default_projects_features['visibility_level'],
+      restricted_signup_domains: Settings.gitlab['restricted_signup_domains']
     )
   end
 
   def home_page_url_column_exist
     ActiveRecord::Base.connection.column_exists?(:application_settings, :home_page_url)
   end
+
+  def restricted_signup_domains_raw
+    self.restricted_signup_domains.join("\n") unless self.restricted_signup_domains.nil?
+  end
+
+  def restricted_signup_domains_raw=(values)
+    self.restricted_signup_domains = []
+    self.restricted_signup_domains = values.split(
+        /\s*[,;]\s*     # comma or semicolon, optionally surrounded by whitespace
+        |               # or
+        \s              # any whitespace character
+        |               # or
+        [\r\n]          # any number of newline characters
+        /x)
+    self.restricted_signup_domains.reject! { |d| d.empty? }
+  end
+
 end