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

app/controllers/admin/application_settings_controller.rb

@@ -113,6 +113,7 @@ class Admin::ApplicationSettingsController < Admin::ApplicationController
       :html_emails_enabled,
       :koding_enabled,
       :koding_url,
+      :password_authentication_enabled,
       :plantuml_enabled,
       :plantuml_url,
       :max_artifacts_size,
@@ -135,7 +136,6 @@ class Admin::ApplicationSettingsController < Admin::ApplicationController
       :require_two_factor_authentication,
       :session_expire_delay,
       :sign_in_text,
-      :signin_enabled,
       :signup_enabled,
       :sentry_dsn,
       :sentry_enabled,

app/controllers/application_controller.rb

@@ -170,7 +170,7 @@ class ApplicationController < ActionController::Base
   end
 
   def check_password_expiration
-    if current_user && current_user.password_expires_at && current_user.password_expires_at < Time.now && !current_user.ldap_user?
+    if current_user && current_user.password_expires_at && current_user.password_expires_at < Time.now && current_user.allow_password_authentication?
       return redirect_to new_profile_password_path
     end
   end

app/controllers/passwords_controller.rb

 class PasswordsController < Devise::PasswordsController
+  include Gitlab::CurrentSettings
+
   before_action :resource_from_email, only: [:create]
-  before_action :prevent_ldap_reset,  only: [:create]
+  before_action :check_password_authentication_available, only: [:create]
   before_action :throttle_reset,      only: [:create]
 
   def edit
@@ -25,7 +27,7 @@ class PasswordsController < Devise::PasswordsController
 
   def update
     super do |resource|
-      if resource.valid? && resource.require_password?
+      if resource.valid? && resource.require_password_creation?
         resource.update_attribute(:password_automatically_set, false)
       end
     end
@@ -38,11 +40,11 @@ class PasswordsController < Devise::PasswordsController
     self.resource = resource_class.find_by_email(email)
   end
 
-  def prevent_ldap_reset
-    return unless resource && resource.ldap_user?
+  def check_password_authentication_available
+    return if current_application_settings.password_authentication_enabled? && (resource.nil? || resource.allow_password_authentication?)
 
     redirect_to after_sending_reset_password_instructions_path_for(resource_name),
-      alert: "Cannot reset password for LDAP user."
+      alert: "Password authentication is unavailable."
   end
 
   def throttle_reset

app/controllers/profiles/passwords_controller.rb

@@ -77,7 +77,7 @@ class Profiles::PasswordsController < Profiles::ApplicationController
   end
 
   def authorize_change_password!
-    return render_404 if @user.ldap_user?
+    render_404 unless @user.allow_password_authentication?
   end
 
   def user_params

app/controllers/sessions_controller.rb

@@ -58,7 +58,7 @@ class SessionsController < Devise::SessionsController
 
     user = User.admins.last
 
-    return unless user && user.require_password?
+    return unless user && user.require_password_creation?
 
     Users::UpdateService.new(user).execute do |user|
       @token = user.generate_reset_token

app/helpers/application_settings_helper.rb

 module ApplicationSettingsHelper
   delegate  :gravatar_enabled?,
             :signup_enabled?,
-            :signin_enabled?,
+            :password_authentication_enabled?,
             :akismet_enabled?,
             :koding_enabled?,
             to: :current_application_settings

app/helpers/button_helper.rb

@@ -50,12 +50,12 @@ module ButtonHelper
 
   def http_clone_button(project, placement = 'right', append_link: true)
     klass = 'http-selector'
-    klass << ' has-tooltip' if current_user.try(:require_password?) || current_user.try(:require_personal_access_token?)
+    klass << ' has-tooltip' if current_user.try(:require_password_creation?) || current_user.try(:require_personal_access_token_creation_for_git_auth?)
 
     protocol = gitlab_config.protocol.upcase
 
     tooltip_title =
-      if current_user.try(:require_password?)
+      if current_user.try(:require_password_creation?)
         _("Set a password on your account to pull or push via %{protocol}.") % { protocol: protocol }
       else
         _("Create a personal access token on your account to pull or push via %{protocol}.") % { protocol: protocol }

app/helpers/projects_helper.rb

@@ -214,11 +214,11 @@ module ProjectsHelper
 
   def show_no_password_message?
     cookies[:hide_no_password_message].blank? && !current_user.hide_no_password &&
-      ( current_user.require_password? || current_user.require_personal_access_token? )
+      ( current_user.require_password_creation? || current_user.require_personal_access_token_creation_for_git_auth? )
   end
 
   def link_to_set_password
-    if current_user.require_password?
+    if current_user.require_password_creation?
       link_to s_('SetPasswordToCloneLink|set a password'), edit_profile_password_path
     else
       link_to s_('CreateTokenToCloneLink|create a personal access token'), profile_personal_access_tokens_path

app/models/application_setting.rb

@@ -237,6 +237,7 @@ class ApplicationSetting < ActiveRecord::Base
       koding_url: nil,
       max_artifacts_size: Settings.artifacts['max_size'],
       max_attachment_size: Settings.gitlab['max_attachment_size'],
+      password_authentication_enabled: Settings.gitlab['password_authentication_enabled'],
       performance_bar_allowed_group_id: nil,
       plantuml_enabled: false,
       plantuml_url: nil,
@@ -251,7 +252,6 @@ class ApplicationSetting < ActiveRecord::Base
       shared_runners_text: nil,
       sidekiq_throttling_enabled: false,
       sign_in_text: nil,
-      signin_enabled: Settings.gitlab['signin_enabled'],
       signup_enabled: Settings.gitlab['signup_enabled'],
       terminal_max_session_time: 0,
       two_factor_grace_period: 48,

app/models/user.rb

@@ -580,16 +580,20 @@ class User < ActiveRecord::Base
     keys.count == 0 && Gitlab::ProtocolAccess.allowed?('ssh')
   end
 
-  def require_password?
-    password_automatically_set? && !ldap_user? && current_application_settings.signin_enabled?
+  def require_password_creation?
+    password_automatically_set? && allow_password_authentication?
   end
 
-  def require_personal_access_token?
-    return false if current_application_settings.signin_enabled? || ldap_user?
+  def require_personal_access_token_creation_for_git_auth?
+    return false if allow_password_authentication? || ldap_user?
 
     PersonalAccessTokensFinder.new(user: self, impersonation: false, state: 'active').execute.none?
   end
 
+  def allow_password_authentication?
+    !ldap_user? && current_application_settings.password_authentication_enabled?
+  end
+
   def can_change_username?
     gitlab_config.username_changing_enabled
   end

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

@@ -145,9 +145,9 @@
     .form-group
       .col-sm-offset-2.col-sm-10
         .checkbox
-          = f.label :signin_enabled do
-            = f.check_box :signin_enabled
-            Sign-in enabled
+          = f.label :password_authentication_enabled do
+            = f.check_box :password_authentication_enabled
+            Password authentication enabled
     - if omniauth_enabled? && button_based_providers.any?
       .form-group
         = f.label :enabled_oauth_sign_in_sources, 'Enabled OAuth sign-in sources', class: 'control-label col-sm-2'

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

@@ -6,15 +6,15 @@
   - else
     = render 'devise/shared/tabs_normal'
   .tab-content
-    - if signin_enabled? || ldap_enabled? || crowd_enabled?
+    - if password_authentication_enabled? || ldap_enabled? || crowd_enabled?
       = render 'devise/shared/signin_box'
 
     -# Signup only makes sense if you can also sign-in
-    - if signin_enabled? && signup_enabled?
+    - if password_authentication_enabled? && signup_enabled?
       = render 'devise/shared/signup_box'
 
   -# Show a message if none of the mechanisms above are enabled
-  - if !signin_enabled? && !ldap_enabled? && !(omniauth_enabled? && devise_mapping.omniauthable?)
+  - if !password_authentication_enabled? && !ldap_enabled? && !(omniauth_enabled? && devise_mapping.omniauthable?)
     %div
       No authentication methods configured.
 

app/views/devise/shared/_signin_box.html.haml

@@ -7,12 +7,12 @@
     .login-box.tab-pane{ id: "#{server['provider_name']}", role: 'tabpanel', class: active_when(i.zero? && !crowd_enabled?) }
       .login-body
         = render 'devise/sessions/new_ldap', server: server
-  - if signin_enabled?
+  - if password_authentication_enabled?
     .login-box.tab-pane{ id: 'ldap-standard', role: 'tabpanel' }
       .login-body
         = render 'devise/sessions/new_base'
 
-- elsif signin_enabled?
+- elsif password_authentication_enabled?
   .login-box.tab-pane.active{ id: 'login-pane', role: 'tabpanel' }
     .login-body
       = render 'devise/sessions/new_base'

app/views/devise/shared/_tabs_ldap.html.haml

@@ -5,9 +5,9 @@
   - @ldap_servers.each_with_index do |server, i|
     %li{ class: active_when(i.zero? && !crowd_enabled?) }
       = link_to server['label'], "##{server['provider_name']}",  'data-toggle' => 'tab'
-  - if signin_enabled?
+  - if password_authentication_enabled?
     %li
       = link_to 'Standard', '#ldap-standard', 'data-toggle' => 'tab'
-  - if signin_enabled? && signup_enabled?
+  - if password_authentication_enabled? && signup_enabled?
     %li
       = link_to 'Register', '#register-pane', 'data-toggle' => 'tab'

app/views/devise/shared/_tabs_normal.html.haml

 %ul.nav-links.new-session-tabs.nav-tabs{ role: 'tablist' }
   %li.active{ role: 'presentation' }
     %a{ href: '#login-pane', data: { toggle: 'tab' }, role: 'tab' } Sign in
-  - if signin_enabled? && signup_enabled?
+  - if password_authentication_enabled? && signup_enabled?
     %li{ role: 'presentation' }
       %a{ href: '#register-pane', data: { toggle: 'tab' }, role: 'tab' } Register

app/views/layouts/nav/_profile.html.haml

@@ -29,7 +29,7 @@
       = link_to profile_emails_path, title: 'Emails' do
         %span
           Emails
-    - unless current_user.ldap_user?
+    - if current_user.allow_password_authentication?
       = nav_link(controller: :passwords) do
         = link_to edit_profile_password_path, title: 'Password' do
           %span

changelogs/unreleased/fixes-for-internal-auth-disabled.yml

+---
+title: Fixes needed when GitLab sign-in is not enabled
+merge_request: 12491
+author: Robin Bobbitt

config/initializers/1_settings.rb

@@ -223,7 +223,7 @@ rescue ArgumentError # no user configured
 end
 Settings.gitlab['time_zone'] ||= nil
 Settings.gitlab['signup_enabled'] ||= true if Settings.gitlab['signup_enabled'].nil?
-Settings.gitlab['signin_enabled'] ||= true if Settings.gitlab['signin_enabled'].nil?
+Settings.gitlab['password_authentication_enabled'] ||= true if Settings.gitlab['password_authentication_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]los(?:e[sd]?|ing)|[Ff]ix(?:e[sd]|ing)?|[Rr]esolv(?:e[sd]?|ing))(:?) +(?:(?:issues? +)?%{issue_ref}(?:(?:, *| +and +)?)|([A-Z][A-Z0-9_]+-\d+))+)' if Settings.gitlab['issue_closing_pattern'].nil?

db/migrate/20170629171610_rename_application_settings_signin_enabled_to_password_authentication_enabled.rb

+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

db/post_migrate/20170629180131_cleanup_application_settings_signin_enabled_rename.rb

+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

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|

doc/api/settings.md

@@ -25,7 +25,7 @@ Example response:
    "id" : 1,
    "default_branch_protection" : 2,
    "restricted_visibility_levels" : [],
-   "signin_enabled" : true,
+   "password_authentication_enabled" : true,
    "after_sign_out_path" : null,
    "max_attachment_size" : 10,
    "user_oauth_applications" : true,
@@ -63,7 +63,7 @@ PUT /application/settings
 | --------- | ---- | :------: | ----------- |
 | `default_projects_limit` | integer  | no | Project limit per user. Default is `100000` |
 | `signup_enabled`    | boolean | no  | Enable registration. Default is `true`. |
-| `signin_enabled`    | boolean | no  | Enable login via a GitLab account. Default is `true`. |
+| `password_authentication_enabled`    | boolean | no  | Enable authentication via a GitLab account password. Default is `true`. |
 | `gravatar_enabled`  | boolean | no  | Enable Gravatar |
 | `sign_in_text`      | string  | no  | Text on login page |
 | `home_page_url`     | string  | no  | Redirect to this URL when not logged in |
@@ -102,7 +102,7 @@ Example response:
   "id": 1,
   "default_projects_limit": 100000,
   "signup_enabled": true,
-  "signin_enabled": true,
+  "password_authentication_enabled": true,
   "gravatar_enabled": true,
   "sign_in_text": "",
   "created_at": "2015-06-12T15:51:55.432Z",

lib/api/entities.rb

@@ -614,7 +614,8 @@ module API
       expose :id
       expose :default_projects_limit
       expose :signup_enabled
-      expose :signin_enabled
+      expose :password_authentication_enabled
+      expose :password_authentication_enabled, as: :signin_enabled
       expose :gravatar_enabled
       expose :sign_in_text
       expose :after_sign_up_text

lib/api/settings.rb

@@ -65,6 +65,7 @@ module API
         :shared_runners_enabled,
         :sidekiq_throttling_enabled,
         :sign_in_text,
+        :password_authentication_enabled,
         :signin_enabled,
         :signup_enabled,
         :terminal_max_session_time,
@@ -95,7 +96,9 @@ module API
         requires :domain_blacklist, type: String, desc: 'Users with e-mail addresses that match these domain(s) will NOT be able to sign-up. Wildcards allowed. Use separate lines for multiple entries. Ex: domain.com, *.domain.com'
       end
       optional :after_sign_up_text, type: String, desc: 'Text shown after sign up'
-      optional :signin_enabled, type: Boolean, desc: 'Flag indicating if sign in is enabled'
+      optional :password_authentication_enabled, type: Boolean, desc: 'Flag indicating if password authentication is enabled'
+      optional :signin_enabled, type: Boolean, desc: 'Flag indicating if password authentication is enabled'
+      mutually_exclusive :password_authentication_enabled, :signin_enabled
       optional :require_two_factor_authentication, type: Boolean, desc: 'Require all users to setup Two-factor authentication'
       given require_two_factor_authentication: ->(val) { val } do
         requires :two_factor_grace_period, type: Integer, desc: 'Amount of time (in hours) that users are allowed to skip forced configuration of two-factor authentication'
@@ -176,6 +179,10 @@ module API
     put "application/settings" do
       attrs = declared_params(include_missing: false)
 
+      if attrs.has_key?(:signin_enabled)
+        attrs[:password_authentication_enabled] = attrs.delete(:signin_enabled)
+      end
+
       if current_settings.update_attributes(attrs)
         present current_settings, with: Entities::ApplicationSetting
       else

lib/api/v3/entities.rb

@@ -161,7 +161,8 @@ module API
         expose :id
         expose :default_projects_limit
         expose :signup_enabled
-        expose :signin_enabled
+        expose :password_authentication_enabled
+        expose :password_authentication_enabled, as: :signin_enabled
         expose :gravatar_enabled
         expose :sign_in_text
         expose :after_sign_up_text

lib/api/v3/settings.rb

@@ -44,7 +44,9 @@ module API
           requires :domain_blacklist, type: String, desc: 'Users with e-mail addresses that match these domain(s) will NOT be able to sign-up. Wildcards allowed. Use separate lines for multiple entries. Ex: domain.com, *.domain.com'
         end
         optional :after_sign_up_text, type: String, desc: 'Text shown after sign up'
-        optional :signin_enabled, type: Boolean, desc: 'Flag indicating if sign in is enabled'
+        optional :password_authentication_enabled, type: Boolean, desc: 'Flag indicating if password authentication is enabled'
+        optional :signin_enabled, type: Boolean, desc: 'Flag indicating if password authentication is enabled'
+        mutually_exclusive :password_authentication_enabled, :signin_enabled
         optional :require_two_factor_authentication, type: Boolean, desc: 'Require all users to setup Two-factor authentication'
         given require_two_factor_authentication: ->(val) { val } do
           requires :two_factor_grace_period, type: Integer, desc: 'Amount of time (in hours) that users are allowed to skip forced configuration of two-factor authentication'
@@ -116,7 +118,7 @@ module API
                         :max_attachment_size, :session_expire_delay, :disabled_oauth_sign_in_sources,
                         :user_oauth_applications, :user_default_external, :signup_enabled,
                         :send_user_confirmation_email, :domain_whitelist, :domain_blacklist_enabled,
-                        :after_sign_up_text, :signin_enabled, :require_two_factor_authentication,
+                        :after_sign_up_text, :password_authentication_enabled, :signin_enabled, :require_two_factor_authentication,
                         :home_page_url, :after_sign_out_path, :sign_in_text, :help_page_text,
                         :shared_runners_enabled, :max_artifacts_size, :max_pages_size, :container_registry_token_expire_delay,
                         :metrics_enabled, :sidekiq_throttling_enabled, :recaptcha_enabled,
@@ -126,7 +128,13 @@ module API
                         :housekeeping_enabled, :terminal_max_session_time
       end
       put "application/settings" do
-        if current_settings.update_attributes(declared_params(include_missing: false))
+        attrs = declared_params(include_missing: false)
+
+        if attrs.has_key?(:signin_enabled)
+          attrs[:password_authentication_enabled] = attrs.delete(:signin_enabled)
+        end
+
+        if current_settings.update_attributes(attrs)
           present current_settings, with: Entities::ApplicationSetting
         else
           render_validation_error!(current_settings)

lib/gitlab/auth.rb

@@ -37,7 +37,7 @@ module Gitlab
         rate_limit!(ip, success: result.success?, login: login)
         Gitlab::Auth::UniqueIpsLimiter.limit_user!(result.actor)
 
-        return result if result.success? || current_application_settings.signin_enabled? || Gitlab::LDAP::Config.enabled?
+        return result if result.success? || current_application_settings.password_authentication_enabled? || Gitlab::LDAP::Config.enabled?
 
         # If sign-in is disabled and LDAP is not configured, recommend a
         # personal access token on failed auth attempts
@@ -48,6 +48,10 @@ module Gitlab
         # Avoid resource intensive login checks if password is not provided
         return unless password.present?
 
+        # Nothing to do here if internal auth is disabled and LDAP is
+        # not configured
+        return unless current_application_settings.password_authentication_enabled? || Gitlab::LDAP::Config.enabled?
+
         Gitlab::Auth::UniqueIpsLimiter.limit_user! do
           user = User.by_login(login)
 

spec/controllers/application_controller_spec.rb

@@ -30,6 +30,15 @@ describe ApplicationController do
       expect(controller).not_to receive(:redirect_to)
       controller.send(:check_password_expiration)
     end
+
+    it 'does not redirect if the user is over their password expiry but sign-in is disabled' do
+      stub_application_setting(password_authentication_enabled: false)
+      user.password_expires_at = Time.new(2002)
+      allow(controller).to receive(:current_user).and_return(user)
+      expect(controller).not_to receive(:redirect_to)
+
+      controller.send(:check_password_expiration)
+    end
   end
 
   describe "#authenticate_user_from_token!" do

spec/controllers/passwords_controller_spec.rb

+require 'spec_helper'
+
+describe PasswordsController do
+  describe '#check_password_authentication_available' do
+    before do
+      @request.env["devise.mapping"] = Devise.mappings[:user]
+    end
+
+    context 'when password authentication is disabled' do
+      it 'prevents a password reset' do
+        stub_application_setting(password_authentication_enabled: false)
+
+        post :create
+
+        expect(flash[:alert]).to eq 'Password authentication is unavailable.'
+      end
+    end
+
+    context 'when reset email belongs to an ldap user' do
+      let(:user) { create(:omniauth_user, provider: 'ldapmain', email: 'ldapuser@gitlab.com') }
+
+      it 'prevents a password reset' do
+        post :create, user: { email: user.email }
+
+        expect(flash[:alert]).to eq 'Password authentication is unavailable.'
+      end
+    end
+  end
+end

spec/features/profiles/password_spec.rb

 require 'spec_helper'
 
 describe 'Profile > Password', feature: true do
+  context 'Password authentication enabled' do
     let(:user) { create(:user, password_automatically_set: true) }
 
     before do
@@ -42,4 +43,33 @@ describe 'Profile > Password', feature: true do
         end
       end
     end
+  end
+
+  context 'Password authentication unavailable' do
+    before do
+      gitlab_sign_in(user)
+    end
+
+    context 'Regular user' do
+      let(:user) { create(:user) }
+
+      it 'renders 404 when sign-in is disabled' do
+        stub_application_setting(password_authentication_enabled: false)
+
+        visit edit_profile_password_path
+
+        expect(page).to have_http_status(404)
+      end
+    end
+
+    context 'LDAP user' do
+      let(:user) { create(:omniauth_user, provider: 'ldapmain') }
+
+      it 'renders 404' do
+        visit edit_profile_password_path
+
+        expect(page).to have_http_status(404)
+      end
+    end
+  end
 end

spec/features/projects/no_password_spec.rb

@@ -30,7 +30,7 @@ feature 'No Password Alert' do
     let(:user) { create(:omniauth_user, extern_uid: 'my-uid', provider: 'saml') }
 
     before do
-      stub_application_setting(signin_enabled?: false)
+      stub_application_setting(password_authentication_enabled?: false)
       stub_omniauth_saml_config(enabled: true, auto_link_saml_user: true, allow_single_sign_on: ['saml'], providers: [mock_saml_config])
     end
 

spec/helpers/button_helper_spec.rb

@@ -35,7 +35,7 @@ describe ButtonHelper do
 
     context 'with internal auth disabled' do
       before do
-        stub_application_setting(signin_enabled?: false)
+        stub_application_setting(password_authentication_enabled?: false)
       end
 
       context 'when user has no personal access tokens' do

spec/helpers/projects_helper_spec.rb

@@ -160,7 +160,7 @@ describe ProjectsHelper do
 
     context 'user requires a personal access token' do
       it 'returns true' do
-        stub_application_setting(signin_enabled?: false)
+        stub_application_setting(password_authentication_enabled?: false)
 
         expect(helper.show_no_password_message?).to be_truthy
       end
@@ -184,7 +184,7 @@ describe ProjectsHelper do
       let(:user) { create(:user) }
 
       it 'returns link to create a personal access token' do
-        stub_application_setting(signin_enabled?: false)
+        stub_application_setting(password_authentication_enabled?: false)
 
         expect(helper.link_to_set_password).to match %r{<a href="#{profile_personal_access_tokens_path}">create a personal access token</a>}
       end

spec/lib/gitlab/auth_spec.rb

@@ -206,7 +206,7 @@ describe Gitlab::Auth, lib: true do
     end
 
     it 'throws an error suggesting user create a PAT when internal auth is disabled' do
-      allow_any_instance_of(ApplicationSetting).to receive(:signin_enabled?) { false }
+      allow_any_instance_of(ApplicationSetting).to receive(:password_authentication_enabled?) { false }
 
       expect { gl_auth.find_for_git_client('foo', 'bar', project: nil, ip: 'ip') }.to raise_error(Gitlab::Auth::MissingPersonalTokenError)
     end
@@ -279,6 +279,16 @@ describe Gitlab::Auth, lib: true do
         gl_auth.find_with_user_password('ldap_user', 'password')
       end
     end
+
+    context "with sign-in disabled" do
+      before do
+        stub_application_setting(password_authentication_enabled: false)
+      end
+
+      it "does not find user by valid login/password" do
+        expect(gl_auth.find_with_user_password(username, password)).to be_nil
+      end
+    end
   end
 
   private

spec/lib/gitlab/fake_application_settings_spec.rb

 require 'spec_helper'
 
 describe Gitlab::FakeApplicationSettings do
-  let(:defaults) { { signin_enabled: false, foobar: 'asdf', signup_enabled: true, 'test?' => 123 } }
+  let(:defaults) { { password_authentication_enabled: false, foobar: 'asdf', signup_enabled: true, 'test?' => 123 } }
 
   subject { described_class.new(defaults) }
 
   it 'wraps OpenStruct variables properly' do
-    expect(subject.signin_enabled).to be_falsey
+    expect(subject.password_authentication_enabled).to be_falsey
     expect(subject.signup_enabled).to be_truthy
     expect(subject.foobar).to eq('asdf')
   end
 
   it 'defines predicate methods' do
-    expect(subject.signin_enabled?).to be_falsey
+    expect(subject.password_authentication_enabled?).to be_falsey
     expect(subject.signup_enabled?).to be_truthy
   end
 
   it 'predicate method changes when value is updated' do
-    subject.signin_enabled = true
+    subject.password_authentication_enabled = true
 
-    expect(subject.signin_enabled?).to be_truthy
+    expect(subject.password_authentication_enabled?).to be_truthy
   end
 
   it 'does not define a predicate method' do

spec/models/user_spec.rb

@@ -1920,4 +1920,26 @@ describe User, models: true do
       user.invalidate_merge_request_cache_counts
     end
   end
+
+  describe '#allow_password_authentication?' do
+    context 'regular user' do
+      let(:user) { build(:user) }
+
+      it 'returns true when sign-in is enabled' do
+        expect(user.allow_password_authentication?).to be_truthy
+      end
+
+      it 'returns false when sign-in is disabled' do
+        stub_application_setting(password_authentication_enabled: false)
+
+        expect(user.allow_password_authentication?).to be_falsey
+      end
+    end
+
+    it 'returns false for ldap user' do
+      user = create(:omniauth_user, provider: 'ldapmain')
+
+      expect(user.allow_password_authentication?).to be_falsey
+    end
+  end
 end

spec/requests/api/settings_spec.rb

@@ -10,7 +10,7 @@ describe API::Settings, 'Settings' do
       expect(response).to have_http_status(200)
       expect(json_response).to be_an Hash
       expect(json_response['default_projects_limit']).to eq(42)
-      expect(json_response['signin_enabled']).to be_truthy
+      expect(json_response['password_authentication_enabled']).to be_truthy
       expect(json_response['repository_storage']).to eq('default')
       expect(json_response['koding_enabled']).to be_falsey
       expect(json_response['koding_url']).to be_nil
@@ -32,7 +32,7 @@ describe API::Settings, 'Settings' do
       it "updates application settings" do
         put api("/application/settings", admin),
           default_projects_limit: 3,
-          signin_enabled: false,
+          password_authentication_enabled: false,
           repository_storage: 'custom',
           koding_enabled: true,
           koding_url: 'http://koding.example.com',
@@ -46,7 +46,7 @@ describe API::Settings, 'Settings' do
           help_page_support_url: 'http://example.com/help'
         expect(response).to have_http_status(200)
         expect(json_response['default_projects_limit']).to eq(3)
-        expect(json_response['signin_enabled']).to be_falsey
+        expect(json_response['password_authentication_enabled']).to be_falsey
         expect(json_response['repository_storage']).to eq('custom')
         expect(json_response['repository_storages']).to eq(['custom'])
         expect(json_response['koding_enabled']).to be_truthy

spec/requests/api/v3/settings_spec.rb

@@ -10,7 +10,7 @@ describe API::V3::Settings, 'Settings' do
       expect(response).to have_http_status(200)
       expect(json_response).to be_an Hash
       expect(json_response['default_projects_limit']).to eq(42)
-      expect(json_response['signin_enabled']).to be_truthy
+      expect(json_response['password_authentication_enabled']).to be_truthy
       expect(json_response['repository_storage']).to eq('default')
       expect(json_response['koding_enabled']).to be_falsey
       expect(json_response['koding_url']).to be_nil
@@ -28,11 +28,11 @@ describe API::V3::Settings, 'Settings' do
 
       it "updates application settings" do
         put v3_api("/application/settings", admin),
-          default_projects_limit: 3, signin_enabled: false, repository_storage: 'custom', koding_enabled: true, koding_url: 'http://koding.example.com',
+          default_projects_limit: 3, password_authentication_enabled: false, repository_storage: 'custom', koding_enabled: true, koding_url: 'http://koding.example.com',
           plantuml_enabled: true, plantuml_url: 'http://plantuml.example.com'
         expect(response).to have_http_status(200)
         expect(json_response['default_projects_limit']).to eq(3)
-        expect(json_response['signin_enabled']).to be_falsey
+        expect(json_response['password_authentication_enabled']).to be_falsey
         expect(json_response['repository_storage']).to eq('custom')
         expect(json_response['repository_storages']).to eq(['custom'])
         expect(json_response['koding_enabled']).to be_truthy

spec/requests/git_http_spec.rb

@@ -463,7 +463,7 @@ describe 'Git HTTP requests', lib: true do
 
               context 'when internal auth is disabled' do
                 before do
-                  allow_any_instance_of(ApplicationSetting).to receive(:signin_enabled?) { false }
+                  allow_any_instance_of(ApplicationSetting).to receive(:password_authentication_enabled?) { false }
                 end
 
                 it 'rejects pulls with personal access token error message' do

spec/requests/jwt_controller_spec.rb

@@ -101,7 +101,7 @@ describe JwtController do
 
       context 'when internal auth is disabled' do
         it 'rejects the authorization attempt with personal access token message' do
-          allow_any_instance_of(ApplicationSetting).to receive(:signin_enabled?) { false }
+          allow_any_instance_of(ApplicationSetting).to receive(:password_authentication_enabled?) { false }
           get '/jwt/auth', parameters, headers
 
           expect(response).to have_http_status(401)