javascript - php facebook sdk 不会在 wordpress 中创建用户

标签 javascript php wordpress facebook-login

编辑后的问题:

我正在尝试使用 this sdk 在我的 wordpress 网站上制作一个 facebook 登录插件

当我点击 facebook 按钮登录或注册时，它会通过 facebook 打开一个小窗口，上面写着继续，但之后它不会在 wordpress 数据库中创建用户并破坏 wordpress 页脚，所以它显示 An active access必须使用token查询当前用户的信息。页面刷新后登录表单下的消息。

我完整的 facebook 登录 php 代码是这个:

    <?php 
    include 'facebook/facebook.php';
    function gazi_fb_loginForm(){

            gazi_fb_error_message();

            gazi_fb_LoadScript();

            if(is_user_logged_in()==false){

            ?>

                <div class="facebook_wrapper">
                <img src="<?php echo plugin_dir_url(__FILE__).'images/facebook_or.png';?>" style="border:none; box-shadow:none;">
                <br>
                <a href="javascript:void(0)" onClick="FBLogin();">

                <img src="<?php echo plugin_dir_url(__FILE__).'images/facebook_button.png';?>" alt="Fb Connect" title="Login with facebook" /></a></div>

            <?php 

            } 

        }



    function gazi_fb_LoadScript(){

         global $wpdb;

         $gazi_option=$wpdb->prefix."gazi_option";

         $path =  plugin_dir_url(__FILE__);  // define path to link and scripts

        $pageURL = get_permalink();

        $sign = strpos($pageURL,'?')?'&':'?';

         //facebook app secret

    $qry1="SELECT value FROM $gazi_option WHERE fieldname='gazi_facebook_app_secret'";

    $facebook_app_secret = $wpdb->get_var($qry1);

    $qry2="SELECT value FROM $gazi_option WHERE fieldname='gazi_facebook_app_id'";

    $facebook_app_id = $wpdb->get_var($qry2);



         $facebook = new Facebook(array(

            'appId'     =>  $facebook_app_id,

            'secret'    => $facebook_app_secret,

            ));

        ?>

        <script type="text/javascript">
window.fbAsyncInit = function() {
 FB.init({
      appId      : '<?php echo $facebook_app_id; ?>',
      xfbml      : true,
        status     : true, 
       cookie     : true,
      version    : 'v2.1'
 });


FB.getLoginStatus(function(response) {
          if (response.status === 'connected') {
            console.log('Logged in.');
}
          else {
            console.log('initiate FB login...');
            FB.login();
          }
});

FB.api('/me/feed',function(response){
           var idDiv=document.getElementById('result');
           idDiv.textContent=JSON.stringify(response);
  }); 
};

(function(d){
    var js, id = 'facebook-jssdk', ref = d.getElementsByTagName('script')[0];
    if (d.getElementById(id)) {return;}
    js = d.createElement('script'); js.id = id; js.async = true;
    js.src = "//connect.facebook.net/en_US/all.js";
    ref.parentNode.insertBefore(js, ref);
}(document));

function FBLogin(){
    FB.login(function(response){
        if(response.authResponse){
            window.location.href = "<?php echo $pageURL.$sign;?>option=fblogin";
        }
    }, {scope: 'email'});
}

    </script>

        <?php

        }



    function gazi_fb_error_message(){

            if(isset($_SESSION['msg'])){

                echo '<div class="'.$_SESSION['msg_class'].'">'.$_SESSION['msg'].'</div>';

                unset($_SESSION['msg']);

                unset($_SESSION['msg_class']);

            }

        }



    function gazi_fb_login_validate(){



        $path =  plugin_dir_url(__FILE__);  // define path to link and scripts

        $pageURL = get_permalink();

        $sign = strpos($pageURL,'?')?'&':'?';



        if(isset($_REQUEST['option']) && $_REQUEST['option']  == "fblogin"){

         global $wpdb;

         $gazi_option=$wpdb->prefix."gazi_option";

         //facebook app secret

          $qry1="SELECT value FROM $gazi_option WHERE fieldname='gazi_facebook_app_secret'";

          $facebook_app_secret = $wpdb->get_var($qry1);

          $qry2="SELECT value FROM $gazi_option WHERE fieldname='gazi_facebook_app_id'";

          $facebook_app_id = $wpdb->get_var($qry2);

            $facebook   = new Facebook(array(

                'appId' => $facebook_app_id,

                'secret' => $facebook_app_secret,

                'cookie' => TRUE,

            ));

            $fbuser = $facebook->getUser();

            if ($fbuser) {

                try {

                    $user_profile = $facebook->api('/me');

                }

                catch (Exception $e) {

                    echo $e->getMessage();

                    exit();

                }

                if (!isset($user_profile['email'])) $user_profile['email'] = $user_profile['id'] . '@facebook.com';

                $user_fbid  = $fbuser;

                $user_email = $user_profile["email"];

                $user_fnmae = $user_profile["first_name"];



              if( email_exists( $user_email )) { // user is a member 

                  $user = get_user_by('login', $user_email );

                  $user_id = $user->ID;


                  wp_set_auth_cookie( $user_id, true );

               } else { // this user is a guest

                  $random_password = wp_generate_password( 10, false );

                  $user_id = wp_create_user( $user_email, $random_password, $user_email );

                  update_user_meta($user_id, 'avtar_image', 'https://graph.facebook.com/' . $user_profile['id'] . '/picture?type=large');

                  wp_update_user(array(

                              'ID' => $user_id,

                              'display_name' => $user_profile['name'],

                              'first_name' => $user_profile['first_name'],

                              'last_name' => $user_profile['last_name']

                            ));

                  wp_set_auth_cookie( $user_id, true );

               }



                wp_redirect( $pageURL.$sign.'login4=1');

                exit;



            }       

        }

    }

    ?>

这是上面代码中的javascript。

    <script type="text/javascript">

window.fbAsyncInit = function() {
 FB.init({
      appId      : '<?php echo $facebook_app_id; ?>',
      xfbml      : true,
        status     : true, 
       cookie     : true,
      version    : 'v2.1'
 });


FB.getLoginStatus(function(response) {
          if (response.status === 'connected') {
            console.log('Logged in.');
}
          else {
            console.log('initiate FB login...');
            FB.login();
          }
});

FB.api('/me/feed',function(response){
           var idDiv=document.getElementById('result');
           idDiv.textContent=JSON.stringify(response);
  }); 
};

(function(d){
    var js, id = 'facebook-jssdk', ref = d.getElementsByTagName('script')[0];
    if (d.getElementById(id)) {return;}
    js = d.createElement('script'); js.id = id; js.async = true;
    js.src = "//connect.facebook.net/en_US/all.js";
    ref.parentNode.insertBefore(js, ref);
}(document));

function FBLogin(){
    FB.login(function(response){
        if(response.authResponse){
            window.location.href = "<?php echo $pageURL.$sign;?>option=fblogin";
        }
    }, {scope: 'email'});
}

        </script>

有人知道它是如何工作的吗？我做错了什么？非常感谢任何帮助。

谢谢。

更新:

我已经使用这个答案更改了文件中的一些行 here

改变了这个: $fbuser = $facebook->getUser();

            if ($fbuser) {

                try {

                    $user_profile = $facebook->api('/me');

                }

                catch (Exception $e) {

                    echo $e->getMessage();

                    exit();

                }

这个:

$fbuser = $facebook->getUser();

$photo_details = array('message' => 'my place');
$file='photos/my.jpg'; //Example image file
$photo_details['image'] = '@' . realpath($file);

if ($fbuser) {
  try {
    // We have a valid FB session, so we can use 'me'
    $upload_photo = $facebook->api('/me/photos', 'post', $photo_details);
  } catch (FacebookApiException $e) {
    error_log($e);
  }

我现在注册了，但是很奇怪

wordpress 的用户名和昵称总是@facebook :D

所以我认为它没有在这里获取变量:

if (!isset($user_profile['email'])) $user_profile['email'] = $user_profile['id'] . '@facebook.com'; and just keeping @facebook instead without the `$user_profile['id']`

最佳答案

请在下面找到示例代码。我使用 JavaScript SDK 进行登录，使用 PHP SDK 生成访问 token 。我希望它对你有用。

** HTML 代码::**

    <html>

    <body>

  <p><a href="#" onClick="logInWithFacebook()">Log In with the JavaScript SDK</a></p>

  <script>
    logInWithFacebook = function() {
      FB.login(function(response) {
        if (response.authResponse) {
          alert('You are logged in &amp; cookie set!');
          location.href = "//localhost/facebook/testfb.php"
            // Now you can redirect the user or do an AJAX request to
            // a PHP script that grabs the signed request from the cookie.
        } else {
          alert('User cancelled login or did not fully authorize.');
        }
      });
      return false;
    };
    window.fbAsyncInit = function() {
      FB.init({
        appId: 'app-id',
        cookie: true, // This is important, it's not enabled by default
        version: 'v2.9'
      });
    };

    (function(d, s, id) {
      var js, fjs = d.getElementsByTagName(s)[0];
      if (d.getElementById(id)) {
        return;
      }
      js = d.createElement(s);
      js.id = id;
      js.src = "//connect.facebook.net/en_US/sdk.js";
      fjs.parentNode.insertBefore(js, fjs);
    }(document, 'script', 'facebook-jssdk'));
  </script>
</body>

</html>

** PHP代码**

<?php
require_once('Facebook/autoload.php');
# /js-login.php
$fb = new Facebook\Facebook([
'app_id' => '{app-id}',
'app_secret' => '{app-secret}',
'default_graph_version' => 'v2.9',
]);

$helper = $fb->getJavaScriptHelper();


try {
    $accessToken = $helper->getAccessToken();
} catch(Facebook\Exceptions\FacebookResponseException $e) {
    // When Graph returns an error
    echo 'Graph returned an error: ' . $e->getMessage();
    exit;
} catch(Facebook\Exceptions\FacebookSDKException $e) {
    // When validation fails or other local issues
    echo 'Facebook SDK returned an error: ' . $e->getMessage();
    exit;
}


if (!isset($accessToken)) {
    echo 'No cookie set or no OAuth data could be obtained from cookie.';
    exit;
}



// The OAuth 2.0 client handler helps us manage access tokens
$oAuth2Client = $fb->getOAuth2Client();

// Get the access token metadata from /debug_token
$tokenMetadata = $oAuth2Client->debugToken($accessToken);


// Validation (these will throw FacebookSDKException's when they fail)
$tokenMetadata->validateAppId('{app-id}'); // Replace {app-id} with your app id
// If you know the user ID this access token belongs to, you can validate it here
//$tokenMetadata->validateUserId('123');
$tokenMetadata->validateExpiration();

if (! $accessToken->isLongLived()) {
  // Exchanges a short-lived access token for a long-lived one
  try {
    $accessToken = $oAuth2Client->getLongLivedAccessToken($accessToken);
  } catch (Facebook\Exceptions\FacebookSDKException $e) {
    echo "<p>Error getting long-lived access token: " . $helper->getMessage() . "</p>\n\n";
    exit;
  }

  echo '<h3>Long-lived</h3>';
  var_dump($accessToken->getValue());
}

$_SESSION['fb_access_token'] = (string) $accessToken;

try {
  // Returns a `Facebook\FacebookResponse` object
  $response = $fb->get('/me?fields=id,name,email', $accessToken->getValue());
} catch(Facebook\Exceptions\FacebookResponseException $e) {
  echo 'Graph returned an error: ' . $e->getMessage();
  exit;
} catch(Facebook\Exceptions\FacebookSDKException $e) {
  echo 'Facebook SDK returned an error: ' . $e->getMessage();
  exit;
}

$user = $response->getGraphUser();

echo 'Name: ' . $user['name'];
echo 'Email: ' . $user['email'];

?>

关于javascript - php facebook sdk 不会在 wordpress 中创建用户，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/43632458/

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