带有CodeIgniter的Facebook PHP SDK未返回$ _REQUEST ['signed_request'] [英] Facebook PHP-SDK with CodeIgniter not returning $_REQUEST['signed_request']

问题描述

class Example extends CI_Controller {

    function __construct()
    {
        parent::__construct();
    }

    function index()
    {

        $this->load->library('facebooklib');

        $user = $this->facebooklib->getUser();

        if ($user) {
            try {
                $data['user_profile'] = $this->facebooklib->api('/me');
            } catch (FacebookApiException $e) {
                $user = null;
            }
        }

        var_dump($_REQUEST);

        if ($user) {
            $data['logout_url'] = $this->facebooklib->getLogoutUrl();
        } else {
            $data['login_url'] = $this->facebooklib->getLoginUrl();
        }

        $this->load->view('view',$data);
    }
}

点击登录链接后， Facebook权限页面，我接受，我返回到没有数据的相同页面。

After clicking on the Login link, I am taken to Facebook permissions page, I accept, and I am returned to the same page with no data.

array(3) {
  ["/example"]=>
  string(0) ""
  ["PHPSESSID"]=>
  string(32) "33a446883d4fb1877fb6dcff6d70799a"
  ["ci_session"]=>
  string(311) "a:4:{s:10:"session_id";s:32:"d8bb3926550e3ec1b9d075b456708e9b";s:10:"ip_address";s:9:"127.0.0.1";s:10:"user_agent";s:120:"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_6_8) AppleWebKit/535.19 (KHTML, like Gecko) Chrome/18.0.1025.168 Safari/535.19";s:13:"last_activity";i:1336011855;}c874fb95984396f04ab6cc17217102d7"
}

我的$ _REQUEST转储没有真正显示这是一个问题。

My $_REQUEST dump doesn't really show signed_request, which is a problem.

推荐答案

尽管所有的downfote，我找到了解决方案这个非常严重的BUG找到在Facebook PHP-SDK与CodeIgniter。

Despite all the downvotes, I was able to find the solution to this VERY serious BUG found in Facebook PHP-SDK with CodeIgniter.

因此这里是CI论坛中找到的解决方案：http://codeigniter.com/forums/viewthread/202370/#986781

So here's the solution found in CI forums: http://codeigniter.com/forums/viewthread/202370/#986781

    // Stop cache
    $this->ci->output->set_header("Cache-Control: private, no-store, no-cache, must-revalidate, post-check=0, pre-check=0");
    $this->ci->output->set_header("Pragma: no-cache");

    // IE Fix
    if(strpos($this->ci->agent->agent_string(), 'MSIE') !== FALSE) {
        $this->ci->output->set_header('p3p: CP="ALL DSP COR PSAa PSDa OUR NOR ONL UNI COM NAV"');
    }

    // Repopulate _REQUEST ... Facebook needs it.
    $request_uri = $_SERVER['REQUEST_URI'];
    $request_uri = explode('?',$request_uri);
    if(count($request_uri) > 1) {
        parse_str($request_uri[1], $_REQUEST);
    }

由于某种原因，新的PHP SDK不会通过$ _REQUEST通过CodeIgniter 。还有缓存的问题，IE没有合适的头。

For some reason, the new PHP SDK doesn't pass $_REQUEST through CodeIgniter. There's also issues with cache, and IE not having proper header.

所以这从$ _SERVER ['REQUEST_URI']构建$ _REQUEST，然后正确地通过Facebook类和成功返回正确的数据。

So this builds $_REQUEST from $_SERVER['REQUEST_URI'], which then properly passes through Facebook class and successfully returns proper data.

这篇关于带有CodeIgniter的Facebook PHP SDK未返回$ _REQUEST ['signed_request']的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！