Perform private token and personal access token authentication in the same `before_action`.

- So that the check for valid personal access tokens happens only if
  private token auth fails.

app/controllers/application_controller.rb

@@ -7,8 +7,7 @@ class ApplicationController < ActionController::Base
   include GitlabRoutingHelper
   include PageLayoutHelper
 
-  before_action :authenticate_user_from_private_token!
-  before_action :authenticate_user_from_personal_access_token!
+  before_action :authenticate_user_from_token!
   before_action :authenticate_user!
   before_action :validate_user_service_ticket!
   before_action :reject_blocked!
@@ -64,26 +63,8 @@ class ApplicationController < ActionController::Base
     end
   end
 
-  # From https://github.com/plataformatec/devise/wiki/How-To:-Simple-Token-Authentication-Example
-  # https://gist.github.com/josevalim/fb706b1e933ef01e4fb6
-  def authenticate_user_from_private_token!
-    user_token = params[:private_token].presence  || request.headers['PRIVATE-TOKEN'].presence
-    user = user_token && User.find_by_authentication_token(user_token.to_s)
-
-    if user
-      # Notice we are passing store false, so the user is not
-      # actually stored in the session and a token is needed
-      # for every request. If you want the token to work as a
-      # sign in token, you can simply remove store: false.
-      sign_in user, store: false
-    end
-  end
-
-  def authenticate_user_from_personal_access_token!
-    token_string = params[:private_token].presence || request.headers['PRIVATE-TOKEN'].presence
-    personal_access_token = PersonalAccessToken.active.find_by_token(token_string)
-    user = personal_access_token && personal_access_token.user
-
+  def authenticate_user_from_token!
+    user = get_user_from_private_token || get_user_from_personal_access_token
     if user
       # Notice we are passing store false, so the user is not
       # actually stored in the session and a token is needed
@@ -383,4 +364,17 @@ class ApplicationController < ActionController::Base
     (controller_name == 'groups' && action_name == page_type) ||
     (controller_name == 'dashboard' && action_name == page_type)
   end
+
+  # From https://github.com/plataformatec/devise/wiki/How-To:-Simple-Token-Authentication-Example
+  # https://gist.github.com/josevalim/fb706b1e933ef01e4fb6
+  def get_user_from_private_token
+    user_token = params[:private_token].presence  || request.headers['PRIVATE-TOKEN'].presence
+    User.find_by_authentication_token(user_token.to_s) if user_token
+  end
+
+  def get_user_from_personal_access_token
+    token_string = params[:private_token].presence || request.headers['PRIVATE-TOKEN'].presence
+    personal_access_token = PersonalAccessToken.active.find_by_token(token_string)
+    personal_access_token.user if personal_access_token
+  end
 end

spec/controllers/application_controller_spec.rb

@@ -31,7 +31,8 @@ describe ApplicationController do
     end
   end
 
-  describe "#authenticate_user_from_private_token!" do
+  describe "#authenticate_user_from_token!" do
+    describe "authenticating a user from a private token" do
       controller(ApplicationController) do
         def index
           render text: "authenticated"
@@ -61,7 +62,7 @@ describe ApplicationController do
       end
     end
 
-  describe "#authenticate_user_from_personal_access_token!" do
+    describe "authenticating a user from a personal access token" do
       controller(ApplicationController) do
         def index
           render text: 'authenticated'
@@ -90,4 +91,5 @@ describe ApplicationController do
         expect(response.body).to_not eq('authenticated')
       end
     end
+  end
 end