Fixes needed when GitLab sign-in is not enabled

When sign-in is disabled:
 - skip password expiration checks
 - prevent password reset requests
 - don’t show Password tab in User Settings
 - don’t allow login with username/password for Git over HTTP requests
 - render 404 on requests to Profiles::PasswordsController

3 files changed, 31 insertions, 1 deletions

diff --git a/db/migrate/20170629171610_rename_application_settings_signin_enabled_to_password_authentication_enabled.rb b/db/migrate/20170629171610_rename_application_settings_signin_enabled_to_password_authentication_enabled.rb
new file mode 100644
index 00000000000..858b3bebace
--- /dev/null
+++ b/db/migrate/20170629171610_rename_application_settings_signin_enabled_to_password_authentication_enabled.rb
@@ -0,0 +1,15 @@
+class RenameApplicationSettingsSigninEnabledToPasswordAuthenticationEnabled < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  def up
+    rename_column_concurrently :application_settings, :signin_enabled, :password_authentication_enabled
+  end
+
+  def down
+    cleanup_concurrent_column_rename :application_settings, :password_authentication_enabled, :signin_enabled
+  end
+end
diff --git a/db/post_migrate/20170629180131_cleanup_application_settings_signin_enabled_rename.rb b/db/post_migrate/20170629180131_cleanup_application_settings_signin_enabled_rename.rb
new file mode 100644
index 00000000000..52a773ddfee
--- /dev/null
+++ b/db/post_migrate/20170629180131_cleanup_application_settings_signin_enabled_rename.rb
@@ -0,0 +1,15 @@
+class CleanupApplicationSettingsSigninEnabledRename < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  def up
+    cleanup_concurrent_column_rename :application_settings, :signin_enabled, :password_authentication_enabled
+  end
+
+  def down
+    rename_column_concurrently :application_settings, :password_authentication_enabled, :signin_enabled
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 3dbe52c9c80..5264fc99557 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -41,7 +41,6 @@ ActiveRecord::Schema.define(version: 20170707184244) do
   create_table "application_settings", force: :cascade do |t|
     t.integer "default_projects_limit"
     t.boolean "signup_enabled"
-    t.boolean "signin_enabled"
     t.boolean "gravatar_enabled"
     t.text "sign_in_text"
     t.datetime "created_at"
@@ -127,6 +126,7 @@ ActiveRecord::Schema.define(version: 20170707184244) do
     t.boolean "help_page_hide_commercial_content", default: false
     t.string "help_page_support_url"
     t.integer "performance_bar_allowed_group_id"
+    t.boolean "password_authentication_enabled"
   end
 
   create_table "audit_events", force: :cascade do |t|