diff options
Diffstat (limited to 'actionpack/lib')
| -rw-r--r-- | actionpack/lib/action_controller/metal/request_forgery_protection.rb | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/actionpack/lib/action_controller/metal/request_forgery_protection.rb b/actionpack/lib/action_controller/metal/request_forgery_protection.rb index d6cd5fd9e0..b2e6f86eeb 100644 --- a/actionpack/lib/action_controller/metal/request_forgery_protection.rb +++ b/actionpack/lib/action_controller/metal/request_forgery_protection.rb @@ -414,11 +414,21 @@ module ActionController #:nodoc: allow_forgery_protection end + NULL_ORIGIN_MESSAGE = <<-MSG.strip_heredoc + The browser returned a 'null' origin for a request with origin-based forgery protection turned on. This usually + means you have the 'no-referrer' Referrer-Policy header enabled, or that you the request came from a site that + refused to give its origin. This makes it impossible for Rails to verify the source of the requests. Likely the + best solution is to change your referrer policy to something less strict like same-origin or strict-same-origin. + If you cannot change the referrer policy, you can disable origin checking with the + Rails.application.config.action_controller.forgery_protection_origin_check setting. + MSG + # Checks if the request originated from the same origin by looking at the # Origin header. def valid_request_origin? # :doc: if forgery_protection_origin_check # We accept blank origin headers because some user agents don't send it. + raise InvalidAuthenticityToken, NULL_ORIGIN_MESSAGE if request.origin == "null" request.origin.nil? || request.origin == request.base_url else true |