Merge pull request rails#43209 from mpestov/check-basic-auth-credentials

Check basic auth credentials before authenticate

Author: rafaelfranca

actionpack/lib/action_controller/metal/http_authentication.rb

@@ -103,7 +103,7 @@ def authenticate(request, &login_procedure)
       end
 
       def has_basic_credentials?(request)
-        request.authorization.present? && (auth_scheme(request).downcase == "basic")
+        request.authorization.present? && (auth_scheme(request).downcase == "basic") && user_name_and_password(request).length == 2
       end
 
       def user_name_and_password(request)

actionpack/test/controller/http_basic_authentication_test.rb

@@ -112,6 +112,11 @@ def test_encode_credentials_has_no_newline
     assert_no_match(/\n/, result)
   end
 
+  test "has_basic_credentials? should fail with credentials without colon" do
+    @request.env["HTTP_AUTHORIZATION"] = "Basic #{::Base64.encode64("David Goliath")}"
+    assert_not ActionController::HttpAuthentication::Basic.has_basic_credentials?(@request)
+  end
+
   test "successful authentication with uppercase authorization scheme" do
     @request.env["HTTP_AUTHORIZATION"] = "BASIC #{::Base64.encode64("lifo:world")}"
     get :index