Php Facebook SDK错误：跨站点请求伪造验证失败。所需参数"；“国家”；从持久性数据中丢失

我最近升级到了facebook SDK的最新版本，用户登录时出现问题。我生成的登录链接很好，但是当facebook使用令牌将用户发送回我的站点时，我得到以下错误：

fb sdk错误：跨站点请求伪造验证失败。持久数据中缺少必需的参数“状态”

我试着解决一些问题。我打印了会话数据和GET请求中的所有内容。我看到GET有一个状态参数，会话数据有一个FBRLH_状态参数。它们都有相同的值。那么它是如何告诉我参数丢失的呢

我尝试了一些我在其他问题上看到的建议（例如，开始课程），但似乎没有任何效果

任何帮助都将不胜感激！我正在使用php-graph-sdk-5.5。下面是我的facebook connect文件

    if(!class_exists('facebook')){
    class facebook{

        private $db = null;
        private $fb = null;
        private $token = null;
        private $DEV = null;
        private $sdk_error = null;
        private $api_error = null;
        private $verbose = false;
        private $graph_user = null;
        private $db_helper = null;
        private $errors = null;

        public function __construct($db,
                                    $fb_id = FB_APP_ID,
                                    $fb_secret = FB_APP_SECRET,
                                    $fb_version = FB_DEFAULT_GRAPH_VERSION){
            if($this->verbose) echo '<pre>';
            if($this->verbose) echo 'starting construction'.PHP_EOL;
            $this->db = $db;
            if(!$this->fb){
                $this->log[] = 'no connect found. building..'.PHP_EOL;

                $this->fb = new Facebook\Facebook(array(
                            'app_id' => $fb_id,
                            'app_secret' => $fb_secret,

                            'default_graph_version' => $fb_version));
                if(!$this->fb){
                    die('facebook initialization failure');
                }
                $this->log[] = 'finished building new connection'.PHP_EOL;
            }
        }

        public function get_login_url($callback_uri, $permissions = ['email','user_birthday']){

            global $_DEV,$_config;
            $helper = $this->fb->getRedirectLoginHelper();

            $callback_host = ($_DEV ? $_config['dev_domain'] : $_config['live_domain']);
            $callback_url = 'https://'.$callback_host.$callback_uri;
            return $helper->getLoginUrl($callback_url, $permissions);
        }

        public function catch_token(){
            if($this->token){
                $this->log[] = 'already have token.'.PHP_EOL;

                return $this->token;
            } else if(!$this->fb){
                $this->log[] = $this->error[] = 'no facebook connection in catch token()';

            }

            $this->log[] = 'starting catch token routine.'.PHP_EOL;
            //$_SESSION['state']=$_GET['state'];
            echo '<pre>' . var_export($_SESSION, true) . '</pre>';
                        echo '<BR><BR><pre>' . var_export($_GET, true) . '</pre>';
                $helper = $this->fb->getRedirectLoginHelper();

                $this->token = $helper->getAccessToken();

                $this->log[] = 'caught token: '.$this->token;
                $string_token = $this->token.PHP_EOL;
                //die($string_token);
            try {

                $helper = $this->fb->getRedirectLoginHelper();

                $this->token = $helper->getAccessToken();

                $this->log[] = 'caught token: '.$this->token;
                $string_token = $this->token.PHP_EOL;

                return $this->user_flush();
            } catch(Facebook\Exceptions\FacebookResponseException $e) {
                // When Graph returns an error
                $this->log[] = $this->errors[] = 'fb api error: ' . $e->getMessage();
                return null;
            } catch(Facebook\Exceptions\FacebookSDKException $e) {
                // When validation fails or other local issues
                $this->log[] = $this->errors[] = 'fb sdk error: ' . $e->getMessage();
                return null;
            } catch(Exception $e){
                $this->log[] = $this->errors[] = 'unknown error: '.$e->getMessage();
                return null;
            }
        }

        public function get_token(){
            $this->log[] = 'get token called.'.PHP_EOL;
            if($this->token){
                $this->log[] = 'token found in object'.PHP_EOL;
                //echo '<pre>';
                //die(debug_print_backtrace());
                return $this->token;
            } else {
                $this->log[] = $this->errors[] = 'token not found in object.'.PHP_EOL;
                return null;
            }
        }

        public function get_user($override = false){
            $fields = array(
                'first_name',
                'last_name',
                'email',
                'id',
                'picture',
                'birthday',
                'gender',);
            $fields = implode(',',$fields);
            if($this->graph_user === null){
                if($this->fb && $this->get_token()){
                    try {
                      // Returns a Facebook\FacebookResponse object
                      $resp_url = '/me?fields='.$fields.'&debug=all';
                      $this->log[] = $resp_url;
                      $response = $this->fb->get($resp_url, $this->get_token());
                      $this->graph_user = $response->getGraphUser();
                      return $this->graph_user;
                    } 
                    catch(Facebook\Exceptions\FacebookResponseException $e) {
                        // When Graph returns an error
                        $this->api_error = 'fb api error: ' . $e->getMessage();
                        $this->errors[] = $this->api_error;
                        return null;
                    }
                    catch(Facebook\Exceptions\FacebookSDKException $e) {
                        // When validation fails or other local issues
                        $this->sdk_error = 'fb sdk error: ' . $e->getMessage();
                        $this->errors[] = $this->sdk_error;
                        return null;
                    }
                } else {
                    $this->sdk_error = "get_user(): fb connection or token not set. are you logged in?";
                    $this->errors[] = $this->sdk_error;
                    //echo '<pre>';
                    //debug_print_backtrace();
                    //die('token: '.$this->token);
                    return null;
                }
            } else {
                $this->sdk_error = "get_user(): graph_user already set";
                $this->errors[] = $this->sdk_error;
                return $this->graph_user;
            }

        }

        public function get_user_first_name(){
            return $this->get_user()['first_name'];
        }
        public function get_user_last_name(){
            return $this->get_user()['last_name'];
        }
        public function get_user_id(){
            return $this->get_user()['id'];
        }
        public function get_user_email(){
            return $this->get_user()['email'];
        }
        public function get_user_picture(){
            return $this->get_user()['picture']['url'];
        }
        public function get_user_birthday(){
            return $this->get_user()['birthday'];
        }

        public function user_flush(){
            //this is the command function.
            //  runs the basic functionality of this class
            //  by adding this user to the database if they're not there
            //      and logging them in if they are.
            $this->graph_user = $this->get_user();
            //$this->log['graph_user_at_user_flush'] = $this->graph_user;
            $this->build_user();
            $this->log['GRAPH_USER'] = $this->get_user();
            $this->log['user_input_array@user_flush'] = $this->user_input;
            if($return = $this->user->fb_register()){
                //die(print_r(debug_backtrace(),true));
                //$this->log['success return'] = '. '.$return;
                return $return;
            } else {
                //die('<pre>'.print_r(debug_backtrace(),true));
                $this->log['fb_register_fail'] = array('fb_register() (also login) failed.',$this->user->get_errors());
                return null;
            }
        }

        public function build_user(){

            $this->user_input['first_name'] = $this->get_user_first_name();
            //$this->user_input['last_name'] = $this->get_user_last_name();
            $this->user_input['facebook_id'] = $this->get_user_id();
            $this->user_input['email'] = $this->get_user_email();
            $this->user_input['image_url'] = $this->get_user_picture();
            $this->user_input['birthday'] = $this->get_user_birthday();
            if($this->verbose) 
                print_r($this->user_input);
            $this->user = new user($this->user_input,$this->db);
        }

        public function logout(){
            unset($_SESSION['fb_id']);
            unset($this->token);
            unset($this->fb);
        }

        public function get_errors(){
            return array_unique($this->errors);
        }
        public function get_log(){
            return array_unique($this->log);
        }
    }
}


//finally, create the connection.
if(!isset($fb))
    $fb = new facebook($db);

如果（！class_存在（'facebook'））{
班级facebook{
私有$db=null；
private$fb=null；
私有$token=null；
私有$DEV=null；
private$sdk_error=null；
private$api_error=null；
private$verbose=false；
private$graph\u user=null；
私有$db_helper=null；
private$errors=null；
公共功能结构（$db，
$fb_id=fb_应用程序_id，
$fb\u secret=fb\u APP\u secret，
$fb\U版本=fb\U默认值\U图形\U版本）{
如果（$this->verbose）回显“”；
session_start();
include_once 'path/to/fb-config.php';

try {
    $accessToken = $helper->getAccessToken();
} catch (\Facebook\Exceptions\FacebookResponseException $e) {
    echo "Response Exception: " . $e->getMessage();
    exit();
} catch (\Facebook\Exceptions\FacebookSDKException $e) {
    echo "SDK Exception: " . $e->getMessage();
    exit();
}

/** THE REST OF YOUR CALLBACK CODE **/

如果（$this->verbose）回显“开始构建”。PHP\u EOL；
session_start();
include_once 'path/to/fb-config.php';

try {
    $accessToken = $helper->getAccessToken();
} catch (\Facebook\Exceptions\FacebookResponseException $e) {
    echo "Response Exception: " . $e->getMessage();
    exit();
} catch (\Facebook\Exceptions\FacebookSDKException $e) {
    echo "SDK Exception: " . $e->getMessage();
    exit();
}

/** THE REST OF YOUR CALLBACK CODE **/

$this->db=$db；
如果（！$this->fb）{
$this->log[]=“未找到连接。正在构建..”。PHP\u EOL；
$this->fb=new Facebook\Facebook（数组）(
'app_id'=>$fb_id，
“app_secret”=>$fb_secret，
“默认图形版本”=>$fb\U版本）；
如果（！$this->fb）{
die（“facebook初始化失败”）；
}
$this->log[]=“已完成构建新连接”。PHP\u EOL；
}
}
公共函数get_login_url（$callback_uri，$permissions=['email'，'user_birth']））{
全局$\u DEV，$\u config；
$helper=$this->fb->getRedirectLoginHelper（）；
$callback\u host=（$\u DEV？$\u config['DEV\u domain']：$\u config['live\u domain']）；
$callback\u url='https://'。$callback\u host.$callback\u uri；
返回$helper->getLoginUrl（$callback\u url，$permissions）；
}
公共函数catch_token（）{
如果（$this->token）{
$this->log[]=“已经有令牌了。”.PHP\u EOL；
返回$this->token；
}否则如果（！$this->fb）{
$this->log[]=$this->error[]='catch token（）中没有facebook连接'；
}
$this->log[]=“正在启动捕获令牌例程。”.PHP\u EOL；
//$\会话['state']=$\获取['state']；
回显“”。var\u导出（$\u会话，true）。“”；
session_start();
include_once 'path/to/fb-config.php';

try {
    $accessToken = $helper->getAccessToken();
} catch (\Facebook\Exceptions\FacebookResponseException $e) {
    echo "Response Exception: " . $e->getMessage();
    exit();
} catch (\Facebook\Exceptions\FacebookSDKException $e) {
    echo "SDK Exception: " . $e->getMessage();
    exit();
}

/** THE REST OF YOUR CALLBACK CODE **/

echo“

”.var\u导出（$\u GET，true）。“”；
session_start();
include_once 'path/to/fb-config.php';

try {
    $accessToken = $helper->getAccessToken();
} catch (\Facebook\Exceptions\FacebookResponseException $e) {
    echo "Response Exception: " . $e->getMessage();
    exit();
} catch (\Facebook\Exceptions\FacebookSDKException $e) {
    echo "SDK Exception: " . $e->getMessage();
    exit();
}

/** THE REST OF YOUR CALLBACK CODE **/

http://example.com/fb-callback.php

AND ALSO

http://www.example.com/fb-callback.php

$helper=$this->fb->getRedirectLoginHelper（）；
$this->token=$helper->getAccessToken（）；
$this->log[]=“捕获的令牌：”。$this->token；
$string\u token=$this->token.PHP\u EOL；
//模具（$string_-token）；
试一试{
$helper=$this->fb->getRedirectLoginHelper（）；
$this->token=$helper->getAccessToken（）；
$this->log[]=“捕获的令牌：”。$this->token；
$string\u token=$this->token.PHP\u EOL；
返回$this->user_flush（）；
}捕获（Facebook\Exceptions\FacebookResponseException$e）{
//当图形返回错误时
$this->log[]=$this->errors[]='fb api error:'。$e->getMessage（）；
返回null；
}捕获（Facebook\Exceptions\FacebookSDKException$e）{
//验证失败或其他本地问题时
$this->log[]=$this->errors[]='fb sdk error:'。$e->getMessage（）；
返回null；
}捕获（例外$e）{
$this->log[]=$this->errors[]='unknown error:'。$e->getMessage（）；
返回null；
}
}
公共函数get_token（）{
$this->log[]=“调用获取令牌”。.PHP\u EOL；
如果（$this->token）{
$this->log[]=“在对象中找到标记”。PHP\u EOL；
//回声'；
session_start();
include_once 'path/to/fb-config.php';

try {
    $accessToken = $helper->getAccessToken();
} catch (\Facebook\Exceptions\FacebookResponseException $e) {
    echo "Response Exception: " . $e->getMessage();
    exit();
} catch (\Facebook\Exceptions\FacebookSDKException $e) {
    echo "SDK Exception: " . $e->getMessage();
    exit();
}

/** THE REST OF YOUR CALLBACK CODE **/

$redirectURL = "http://".$_SERVER['SERVER_NAME']."/fb-callback.php";
$permissions = ['email'];
$fLoginURL = $helper->getLoginUrl($redirectURL, $permissions);

//模具（debug_print_backtrace（））；
返回$this->token；
}否则{
$this->log[]=$this->errors[]='在对象中找不到令牌。'.PHP\u EOL；
返回null；
}
}
公共函数get\u user（$override=false）{
$fields=数组(
“名字”，
“姓”，
“电子邮件”，
“id”，
“图片”，
“生日”，
"性别",；
$fields=内爆（“，”，$fields）；
if（$this->graph\u user===null）{
如果（$this->fb&&$this->get_token（））{
试一试{
//返回Facebook\FacebookResponse对象
$resp_url='/me？fields='.$fields.&debug=all'；
$this->log[]=$resp_url；
$response=$this->fb->get（$resp_url，$this->get_token（））；
$this->graph_user=$response->getGraphUser（）；
返回$this->graph\u用户；
} 
捕获（Facebook\Exceptions\FacebookResponseException$e）{
//当图形返回错误时
$this->api\u错误