Add option for disable standard signin.

CHANGELOG

@@ -11,6 +11,7 @@ v 6.8.0
   - Fix popen bug in `rake gitlab:satellites:create`
   - Disable connection reaping for MySQL
   - Allow oauth signup without email for twitter and github
+  - Option to disable standard login
 
 v 6.7.3
   - Fix the merge notification email not being sent (Pierre de La Morinerie)

app/views/devise/sessions/new.html.haml

 .login-box
   %h3.page-title Sign in
-  - if ldap_enabled?
+  - if ldap_enabled? && gitlab_config.signin_enabled
     %ul.nav.nav-tabs
       %li.active
         = link_to 'LDAP', '#tab-ldap', 'data-toggle' => 'tab'
@@ -12,11 +12,18 @@
       %div#tab-signin.tab-pane
         = render partial: 'devise/sessions/new_base'
 
-  - else
+  - elsif ldap_enabled?
+    = render partial: 'devise/sessions/new_ldap'
+
+  - elsif gitlab_config.signin_enabled
     = render partial: 'devise/sessions/new_base'
 
+  - else
+    %div
+      No authentication methods configured.
+
 
-  = render 'devise/sessions/oauth_providers' if devise_mapping.omniauthable?
+  = render 'devise/sessions/oauth_providers' if Gitlab.config.omniauth.enabled && devise_mapping.omniauthable?
   %hr
 
   - if gitlab_config.signup_enabled

config/gitlab.yml.example

@@ -54,8 +54,12 @@ production: &base
 
 
     ## Users management
-    # default: false - Account passwords are not sent via the email if signup is enabled. 
+    # default: false - Account passwords are not sent via the email if signup is enabled.
     # signup_enabled: true
+    #
+    # default: true - If set to false, standard login form won't be shown on the sign-in page
+    # signin_enabled: false
+
 
     # Restrict setting visibility levels for non-admin users.
     # The default is to allow all levels.

config/initializers/1_settings.rb

@@ -87,6 +87,7 @@ rescue ArgumentError # no user configured
   '/home/' + Settings.gitlab['user']
 end
 Settings.gitlab['signup_enabled'] ||= false
+Settings.gitlab['signin_enabled'] ||= true if Settings.gitlab['signin_enabled'].nil?
 Settings.gitlab['restricted_visibility_levels'] = Settings.send(:verify_constant_array, Gitlab::VisibilityLevel, Settings.gitlab['restricted_visibility_levels'], [])
 Settings.gitlab['username_changing_enabled'] = true if Settings.gitlab['username_changing_enabled'].nil?
 Settings.gitlab['issue_closing_pattern'] = '([Cc]loses|[Ff]ixes) #(\d+)' if Settings.gitlab['issue_closing_pattern'].nil?