Rails request forgery protection settings

authenticity-token, protect-from-forgery, request, ruby-on-rails

Solution

There is nothing wrong with your code as long as the request `$.post($(this).attr("href"), { _method: "PUT", data: { test: true } });` is executed from within the app itself. If you had another app running elsewhere, say for example on localhost:3001, and you sent a post from there then it won't work. Infact if you are on firefox > 3.0 it has an early implementation of cross site xhr too. For example you can send a POST from any other site (but this works provided protect_from_forgery is turned off!). The reason why auth token is not necessary for xhr is that cross site xhr is disabled. So it is safe to use xhr without providing auth token. If you try from any where else other than your app, i am sure it will raise an exception asking for an auth token. Also you should have a crossdomain.xml defined to prevent access from outside sources.

Try doing this: `curl -X -d url_endpoint_of_your_app`. See if you get a 200 response code. If you do then there is something fishy.

Problem

please help a newbie in Rails :) I have `protect_from_forgery` call (which is given by default) with no attributes in my `ApplicationController` class. Basically here's the code: ``` class ApplicationController < ActionController::Base helper :all # include all helpers, all the time protect_from_forgery helper_method :current_user_session, :current_user filter_parameter_logging :password, :password_confirmation ``` What I assume it should do is: it should prevent any POST requests without correct `authenticity_token`. But when I send post request with jQuery like the one below, it works fine (there's update statement that is executed in the database)! ``` $.post($(this).attr("href"), { _method: "PUT", data: { test: true } }); ``` I see in console that there's no `authenticity_token` among sent parameters, but request is still considered valid. Why is that? UPD Found config setting in config/environments/development.rb ``` config.action_controller.consider_all_requests_local = true ``` Because of the DEV environment and local requests, these jQuery post requests were OK.

Original source