OmniAuth 策略 Facebook NoAuthorizationCodeError(必须传递 `code` 参数或签名请求(通过 `signed_request` 参数):

问题描述

我收到一个错误:

 OmniAuth::Strategies::Facebook::NoAuthorizationCodeError (must pass either a
`code` parameter or a signed request (via `signed_request` parameter or a
`fbsr_XXX` cookie)):

它不会一直来.它偶尔会来，由 airbrake 通知.

Its not coming all the time. Its coming once in a while, notified by airbrake.

谷歌搜索上有很多这方面的链接，但无法找到合适的解决方案..有人吗?初始化目录下的 omniauth.rb:

There are lot of links for this on google search but not able to find out a proper solution.. Anyone?omniauth.rb under initializers directory:

OmniAuth.config.logger = Rails.logger
Rails.application.config.middleware.use OmniAuth::Builder do
  provider :facebook, ENV['FACEBOOK_KEY'], ENV['FACEBOOK_SECRET'], {:client_options => {:ssl => {:ca_path => "/etc/ssl/certs"}}, :scope => 'user_about_me,email,publish_actions,user_location,publish_stream,offline_access,user_interests,user_likes,user_hometown', :display => 'popup'}

  OmniAuth.config.on_failure = Proc.new do |env|
    #this will invoke the omniauth_failure action in SessionsController.
    "SessionsController".constantize.action(:omniauth_failure).call(env)
  end
end

PS:我正在使用带有 facebook-omniauth

PS: I am using facebook javascript sdk with facebook-omniauth

推荐答案

我最近在将 FB JS SDK 与 omniauth-facebook 一起使用时遇到了这个错误.我通过使用 GET 发送 signed_request 参数来修复它，如下所示:

I recently encountered this error when also using the FB JS SDK with omniauth-facebook.I fixed it by sending the signed_request parameter with the GET as shown below:

$(document).bind("fb.loaded", function() {
  FB.getLoginStatus(function(response) {

    console.log('FB STATUS: ' + response.status);
    if(response.status == "connected") {

      console.log("FB AUTHED");

      location.href =
        '/auth/facebook/callback?' +
        $.param({ signed_request: response.authResponse.signedRequest })
      });

    }
  });
});

这种情况发生在用户已经登录 FB 后访问您的网站但未登录您的网站时.通常需要对 omniauth 回调的后续请求进行签名:

The scenario occurs when a user visits your site when already logged into FB but not your site. One often needs to sign the subsequent request to the omniauth callback:

Request URL:
http://localhost:3000/auth/facebook/callback?signed_request=QXZa2TPs8JiSgSAQkrS7Y7ObPZQDYLcU_JNvD6Wru_o.eyJhbGdvcml0aG0iOiJITUFDLVNIQTI1NiIsImNvZGUiOiJBUURjQXdZUdVOMEFmd1RCbjRDQWp4eHpKcWRoRllOS1owLVZpa2pKTUQxSU1UbHJzbmEyMVNUUUtOLWl6b1dJOXJVRWUyWTBNd3ViZ1JxcmZJQmVMRDNOREI2M1EwREtqVzJCeVxTU2ZMR1foWlVwOEVlX0dMVUtwYUlqcWlaQ2FSc1h5c0NBNHdyZDBxbk4taU1haWp2cVFIX19QdUhxaldFcUtYZDc1LS1oZmptcTg4QVVuemVJdDJ4S2VOd3VPZG9vOGtaQkZlZmctZ2FDMk9CNl8wZ24iLCJpc3N1ZWRfYXQiOjEzNTg5NzQ4NzMsInVzZXJfaWQiOiIxMDYwMTg4NyJ9`

如果使用 AJAX，你需要这样的东西:

If using AJAX, you would need something like this:

      $.get(
        '/auth/facebook/callback',
        { signed_request: response.authResponse.signedRequest },
        function(json) {
          alert("received logged in response");
      });

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