Return an error when a disabled authentication mechanism is used

app/controllers/api_controller.rb

@@ -106,8 +106,12 @@ def setup_user_auth
     if doorkeeper_token&.accessible?
       self.current_user = User.find(doorkeeper_token.resource_owner_id)
     elsif Authenticator.new(self, [:token]).allow?
-      # self.current_user setup by OAuth
-    elsif Settings.basic_auth_support
+      if Settings.oauth_10_support
+        # self.current_user setup by OAuth
+      else
+        report_error t("application.oauth_10_disabled"), :forbidden
+      end
+    else
       username, passwd = auth_data # parse from headers
       # authenticate per-scheme
       self.current_user = if username.nil?
@@ -117,8 +121,14 @@ def setup_user_auth
                           else
                             User.authenticate(:username => username, :password => passwd) # basic auth
                           end
-      # log if we have authenticated using basic auth
-      logger.info "Authenticated as user #{current_user.id} using basic authentication" if current_user
+      if username && current_user
+        if Settings.basic_auth_support
+          # log if we have authenticated using basic auth
+          logger.info "Authenticated as user #{current_user.id} using basic authentication"
+        else
+          report_error t("application.basic_auth_disabled"), :forbidden
+        end
+      end
     end
 
     # have we identified the user?

app/controllers/application_controller.rb

@@ -69,6 +69,10 @@ def require_oauth
     @oauth_token = current_user.oauth_token(Settings.oauth_application) if current_user && Settings.key?(:oauth_application)
   end
 
+  def require_oauth_10_support
+    report_error t("application.oauth_10_disabled"), :forbidden unless Settings.oauth_10_support
+  end
+
   ##
   # require the user to have cookies enabled in their browser
   def require_cookies

app/controllers/oauth_controller.rb

@@ -5,6 +5,8 @@ class OauthController < ApplicationController
   # a login, but we want to check authorization on every action.
   authorize_resource :class => false
 
+  before_action :require_oauth_10_support
+
   layout "site"
 
   def revoke

config/locales/en.yml

@@ -2551,6 +2551,8 @@ en:
         other: "GPX file with %{count} points from %{user}"
       description_without_count: "GPX file from %{user}"
   application:
+    basic_auth_disabled: "HTTP Basic Authentication is disabled"
+    oauth_10_disabled: "OAuth 1.0 and 1.0a are disabled"
     permission_denied: You do not have permission to access that action
     require_cookies:
       cookies_needed: "You appear to have cookies disabled - please enable cookies in your browser before continuing."