Remove sign-in token authentication, instead send e-mail about new sign-in (#17970)

app/controllers/admin/sign_in_token_authentications_controller.rb

@@ -1,27 +0,0 @@
-# frozen_string_literal: true
-
-module Admin
-  class SignInTokenAuthenticationsController < BaseController
-    before_action :set_target_user
-
-    def create
-      authorize @user, :enable_sign_in_token_auth?
-      @user.update(skip_sign_in_token: false)
-      log_action :enable_sign_in_token_auth, @user
-      redirect_to admin_account_path(@user.account_id)
-    end
-
-    def destroy
-      authorize @user, :disable_sign_in_token_auth?
-      @user.update(skip_sign_in_token: true)
-      log_action :disable_sign_in_token_auth, @user
-      redirect_to admin_account_path(@user.account_id)
-    end
-
-    private
-
-    def set_target_user
-      @user = User.find(params[:user_id])
-    end
-  end
-end

app/controllers/auth/sessions_controller.rb

@@ -8,7 +8,6 @@ class Auth::SessionsController < Devise::SessionsController
   skip_before_action :update_user_sign_in
 
   include TwoFactorAuthenticationConcern
-  include SignInTokenAuthenticationConcern
 
   before_action :set_instance_presenter, only: [:new]
   before_action :set_body_classes
@@ -66,7 +65,7 @@ class Auth::SessionsController < Devise::SessionsController
   end
 
   def user_params
-    params.require(:user).permit(:email, :password, :otp_attempt, :sign_in_token_attempt, credential: {})
+    params.require(:user).permit(:email, :password, :otp_attempt, credential: {})
   end
 
   def after_sign_in_path_for(resource)
@@ -142,6 +141,12 @@ class Auth::SessionsController < Devise::SessionsController
       ip: request.remote_ip,
       user_agent: request.user_agent
     )
+
+    UserMailer.suspicious_sign_in(user, request.remote_ip, request.user_agent, Time.now.utc).deliver_later! if suspicious_sign_in?(user)
+  end
+
+  def suspicious_sign_in?(user)
+    SuspiciousSignInDetector.new(user).suspicious?(request)
   end
 
   def on_authentication_failure(user, security_measure, failure_reason)

app/controllers/concerns/sign_in_token_authentication_concern.rb

@@ -1,56 +0,0 @@
-# frozen_string_literal: true
-
-module SignInTokenAuthenticationConcern
-  extend ActiveSupport::Concern
-
-  included do
-    prepend_before_action :authenticate_with_sign_in_token, if: :sign_in_token_required?, only: [:create]
-  end
-
-  def sign_in_token_required?
-    find_user&.suspicious_sign_in?(request.remote_ip)
-  end
-
-  def valid_sign_in_token_attempt?(user)
-    Devise.secure_compare(user.sign_in_token, user_params[:sign_in_token_attempt])
-  end
-
-  def authenticate_with_sign_in_token
-    if user_params[:email].present?
-      user = self.resource = find_user_from_params
-      prompt_for_sign_in_token(user) if user&.external_or_valid_password?(user_params[:password])
-    elsif session[:attempt_user_id]
-      user = self.resource = User.find_by(id: session[:attempt_user_id])
-      return if user.nil?
-
-      if session[:attempt_user_updated_at] != user.updated_at.to_s
-        restart_session
-      elsif user_params.key?(:sign_in_token_attempt)
-        authenticate_with_sign_in_token_attempt(user)
-      end
-    end
-  end
-
-  def authenticate_with_sign_in_token_attempt(user)
-    if valid_sign_in_token_attempt?(user)
-      on_authentication_success(user, :sign_in_token)
-    else
-      on_authentication_failure(user, :sign_in_token, :invalid_sign_in_token)
-      flash.now[:alert] = I18n.t('users.invalid_sign_in_token')
-      prompt_for_sign_in_token(user)
-    end
-  end
-
-  def prompt_for_sign_in_token(user)
-    if user.sign_in_token_expired?
-      user.generate_sign_in_token && user.save
-      UserMailer.sign_in_token(user, request.remote_ip, request.user_agent, Time.now.utc.to_s).deliver_later!
-    end
-
-    set_attempt_session(user)
-
-    @body_classes = 'lighter'
-
-    set_locale { render :sign_in_token }
-  end
-end