Merge branch 'feature/sign_out_page' into 'master'

Allow to configure a URL to show after sign out

Split of !669 as requested

This is especially useful with SAML ( !722 ) since the omniauth-saml gem does not support single log-out. This provides a way to log out the user from the SAML IdP after signing out from GitLab.

See merge request !725

CHANGELOG

@@ -35,6 +35,7 @@ v 7.12.0 (unreleased)
   - User should be able to leave group. If not - show him proper message
   - User has ability to leave project
   - Add SAML support as an omniauth provider
+  - Allow to configure a URL to show after sign out 
 
 v 7.11.4
   - Fix missing bullets when creating lists

app/controllers/admin/application_settings_controller.rb

@@ -38,6 +38,7 @@ class Admin::ApplicationSettingsController < Admin::ApplicationController
       :twitter_sharing_enabled,
       :sign_in_text,
       :home_page_url,
+      :after_sign_out_path,
       :max_attachment_size,
       :default_project_visibility,
       :default_snippet_visibility,

app/controllers/application_controller.rb

@@ -89,7 +89,7 @@ class ApplicationController < ActionController::Base
   end
 
   def after_sign_out_path_for(resource)
-    new_user_session_path
+    current_application_settings.after_sign_out_path || new_user_session_path 
   end
 
   def abilities

app/models/application_setting.rb

@@ -19,6 +19,7 @@
 #  default_snippet_visibility   :integer
 #  restricted_signup_domains    :text
 #  user_oauth_applications      :bool             default(TRUE)
+#  after_sign_out_path          :string(255)
 #
 
 class ApplicationSetting < ActiveRecord::Base
@@ -31,6 +32,10 @@ class ApplicationSetting < ActiveRecord::Base
     format: { with: /\A#{URI.regexp(%w(http https))}\z/, message: "should be a valid url" },
     if: :home_page_url_column_exist
 
+  validates :after_sign_out_path,
+    allow_blank: true,
+    format: { with: /\A#{URI.regexp(%w(http https))}\z/, message: "should be a valid url" }
+
   validates_each :restricted_visibility_levels do |record, attr, value|
     unless value.nil?
       value.each do |level|

app/views/admin/application_settings/_form.html.haml

@@ -69,6 +69,11 @@
       .col-sm-10
         = f.text_field :home_page_url, class: 'form-control', placeholder: 'http://company.example.com', :'aria-describedby' => 'home_help_block'
         %span.help-block#home_help_block We will redirect non-logged in users to this page
+    .form-group
+      = f.label :after_sign_out_path, class: 'control-label col-sm-2'
+      .col-sm-10
+        = f.text_field :after_sign_out_path, class: 'form-control', placeholder: 'http://company.example.com', :'aria-describedby' => 'after_sign_out_path_help_block'
+        %span.help-block#after_sign_out_path_help_block We will redirect users to this page after they sign out
     .form-group
       = f.label :sign_in_text, class: 'control-label col-sm-2'
       .col-sm-10

db/migrate/20150529150354_add_after_sign_out_path_for_application_settings.rb

+class AddAfterSignOutPathForApplicationSettings < ActiveRecord::Migration
+  def change
+    add_column :application_settings, :after_sign_out_path, :string
+  end
+end
\ No newline at end of file

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20150529111607) do
+ActiveRecord::Schema.define(version: 20150529150354) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -34,6 +34,7 @@ ActiveRecord::Schema.define(version: 20150529111607) do
     t.integer  "default_snippet_visibility"
     t.text     "restricted_signup_domains"
     t.boolean  "user_oauth_applications",      default: true
+    t.string   "after_sign_out_path"
   end
 
   create_table "broadcast_messages", force: true do |t|