ruby-on-rails - Omniauth-facebook 不断报告 invalid_credentials

Question

我正在尝试按照 Railscast #360 中的描述实现 omniauth-facebook，但遇到了很大的障碍。当我单击登录链接时，我得到了所需的弹出窗口，要求我输入我的 facebook 凭据，但是当我提交时，我收到 OmniAuth::Strategies::OAuth2::CallbackError 错误。在 apache 日志中，打印如下:(facebook) Authentication failure! invalid_credentials: OmniAuth::Strategies::OAuth2::CallbackError, OmniAuth::Strategies::OAuth2::CallbackError

相关代码如下:

omniauth.rb

OmniAuth.config.logger = Rails.logger

Rails.application.config.middleware.use OmniAuth::Builder do
  provider :facebook, ENV['FACEBOOK_APP_ID'], ENV['FACEBOOK_SECRET']
end

sessions_controller.rb

class SessionsController < ApplicationController
  def create
    user = User.from_omniauth(env["omniauth.auth"])
    session[:user_id] = user.id
    redirect_to root_url
  end

  def destroy
    session[:user_id] = nil
    redirect_to root_url
  end
end

application.html.erb

<div id="fb-root"></div>
<script>        
window.fbAsyncInit = function() {
    FB.init({
        appId      : '(**my app id**)', // App ID
        status     : true, // check login status
        cookie     : true // enable cookies to allow the server to access the session
    });

    $('#sign_in').click(function(e) {
        e.preventDefault();
        return FB.login(function(response) {
            if (response.authResponse) {
                return window.location = '/auth/facebook/callback';
            }
        });
    });

    return $('#sign_out').click(function(e) {
        FB.getLoginStatus(function(response) {
            if (response.authResponse) {
                return FB.logout();
            }
        });
        return true;
    });
};
 </script>

我是不是漏掉了一些简单的东西？最近几天我一直在寻找解决方案。

Answer 1

似乎 omniauth-facebook v1.4.1 引入了 CSRF 问题。一个临时修复方法是回滚到 v1.4.0。在您的 Gemfile 中，将 omniauth-facebook 行更改为:

gem 'omniauth-facebook', '1.4.0'

我已经报告了这个问题:https://github.com/mkdynamic/omniauth-facebook/issues/73