ruby - "CSRF detected"与 Omniauth 和谷歌

Question

我明白了

OmniAuth::Strategies::OAuth2::CallbackError at /auth/google/callback csrf_detected | CSRF detected

我的代码:

require 'sinatra'
require "sinatra/json"
require "sinatra/config_file"
require 'omniauth-oauth2'
require 'omniauth-google-oauth2'

use Rack::Logger

config_file "config/app_config.yml"
use Rack::Session::Cookie, secret: '5fb7w345y3489f523y4h'

configure do
  enable :sessions
end

use OmniAuth::Builder do
  provider :google_oauth2, settings.google[:client_id], settings.google[:secret],
    {
      :scope => "userinfo.profile",
      :access_type => "offline",
      :prompt => "select_account consent",
      :name => "google"
    }
end

get '/list' do
  json get_list
end

get '/' do
  %Q|<a href='/auth/google'>Sign in with Google</a>|
end

get '/auth/:name/callback' do
  @auth = request.env['omniauth.auth']
  @auth.inspect
end

我的回调返回代码和状态。

Answer 1

当 /config/initializer/session_store.rb 中定义的域与 google api 控制台中定义的 origin/redirect_uri 不同时，rails 会出现此问题。

MyApp::Application.config.session_store :cookie_store, key: '_app_session', domain: 'my_app.com'

删除域参数或在两侧使用相同的域可以解决问题。