Merge branch '2fa-api-check' into 'master'

CHANGELOG

@@ -51,6 +51,7 @@ v 8.11.0 (unreleased)
   - Get issue and merge request description templates from repositories
   - Add hover state to todos !5361 (winniehell)
   - Fix icon alignment of star and fork buttons !5451 (winniehell)
+  - Enforce 2FA restrictions on API authentication endpoints !5820
   - Limit git rev-list output count to one in forced push check
   - Show deployment status on merge requests with external URLs
   - Clean up unused routes (Josef Strzibny)

config/initializers/doorkeeper.rb

@@ -12,7 +12,8 @@ Doorkeeper.configure do
   end
 
   resource_owner_from_credentials do |routes|
-    Gitlab::Auth.find_with_user_password(params[:username], params[:password])
+    user = Gitlab::Auth.find_with_user_password(params[:username], params[:password])
+    user unless user.try(:two_factor_enabled?)
   end
 
   # If you want to restrict access to the web interface for adding oauth authorized applications, you need to declare the block below.

doc/api/oauth2.md

@@ -90,7 +90,7 @@ curl --header "Authorization: Bearer OAUTH-TOKEN" https://localhost:3000/api/v3/
 
 ## Deprecation Notice
 
-1. Starting in GitLab 9.0, the Resource Owner Password Credentials will be *disabled* for users with two-factor authentication turned on.
+1. Starting in GitLab 8.11, the Resource Owner Password Credentials has been *disabled* for users with two-factor authentication turned on.
 2. These users can access the API using [personal access tokens] instead.
 
 ---

doc/api/session.md

@@ -2,7 +2,7 @@
 
 ## Deprecation Notice
 
-1. Starting in GitLab 9.0, this feature will be *disabled* for users with two-factor authentication turned on.
+1. Starting in GitLab 8.11, this feature has been *disabled* for users with two-factor authentication turned on.
 2. These users can access the API using [personal access tokens] instead.
 
 ---

lib/api/session.rb

@@ -14,6 +14,7 @@ module API
       user = Gitlab::Auth.find_with_user_password(params[:email] || params[:login], params[:password])
 
       return unauthorized! unless user
+      return render_api_error!('401 Unauthorized. You have 2FA enabled. Please use a personal access token to access the API', 401) if user.two_factor_enabled?
       present user, with: Entities::UserLogin
     end
   end

spec/requests/api/oauth_tokens_spec.rb

+require 'spec_helper'
+
+describe API::API, api: true  do
+  include ApiHelpers
+
+  context 'Resource Owner Password Credentials' do
+    def request_oauth_token(user)
+      post '/oauth/token', username: user.username, password: user.password, grant_type: 'password'
+    end
+
+    context 'when user has 2FA enabled' do
+      it 'does not create an access token' do
+        user = create(:user, :two_factor)
+
+        request_oauth_token(user)
+
+        expect(response).to have_http_status(401)
+        expect(json_response['error']).to eq('invalid_grant')
+      end
+    end
+
+    context 'when user does not have 2FA enabled' do
+      it 'creates an access token' do
+        user = create(:user)
+
+        request_oauth_token(user)
+
+        expect(response).to have_http_status(200)
+        expect(json_response['access_token']).not_to be_nil
+      end
+    end
+  end
+end

spec/requests/api/session_spec.rb

@@ -17,6 +17,17 @@ describe API::API, api: true  do
         expect(json_response['can_create_project']).to eq(user.can_create_project?)
         expect(json_response['can_create_group']).to eq(user.can_create_group?)
       end
+
+      context 'with 2FA enabled' do
+        it 'rejects sign in attempts' do
+          user = create(:user, :two_factor)
+
+          post api('/session'), email: user.email, password: user.password
+
+          expect(response).to have_http_status(401)
+          expect(response.body).to include('You have 2FA enabled.')
+        end
+      end
     end
 
     context 'when email has case-typo and password is valid' do