如何從facebook畫布應用授權獲取已簽名的請求？

一旦用戶已經授權我的應用程序，我需要解析簽名的請求，以便我可以訪問他們的用戶ID等。在我的代碼中，我將url放到了處理它的頁面上？我需要一個代碼示例。我瀏覽過文檔，並沒有清楚地解釋如何爲canvas應用程序執行此操作。變量redirectUrl具有畫布應用程序本身的URL。是否應該包含分析簽名請求的代碼的url？我不確定。如何從facebook畫布應用授權獲取已簽名的請求？

<body> 
<div id="fb-root"></div> 
    <script type="text/javascript"> 

    $(document).ready(function(){ 


    var appId = 278*****2040; 

    // If logging in as a Facebook canvas application use this URL. 
    var redirectUrl = "http://apps.facebook.com/MYAPP"; 

    // If the user did not grant the app authorization go ahead and 
    // tell them that. Stop code execution. 
    if (0 <= window.location.href.indexOf ("error_reason")) 
    { 
    $('#authCancel').empty();  
    $(document.body).append ("<p>Authorization denied!</p>"); 
    return; 
    } 


    // When the Facebook SDK script has finished loading init the 
    // SDK and then get the login status of the user. The status is 
    // reported in the handler. 
    window.fbAsyncInit = function(){ 

    //debugger; 

    FB.init({ 
     appId : 278****40, 
     status : true, 
     cookie : true, 
     oauth : true 
     }); 

    // Sandbox Mode must be disabled in the application's settings 
    // otherwise the callback will never be invoked. Monitoring network 
    // traffic will show an error message in the response. Change the 
    // Sandbox Mode setting in: App Settings - Advanced - Authentication. 
    FB.getLoginStatus (onCheckLoginStatus); 
    }; 


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


    // Handles the response from getting the user's login status. 
    // If the user is logged in and the app is authorized go ahead 
    // and start running the application. If they are not logged in 
    // then redirect to the auth dialog. 

    function onCheckLoginStatus (response) 
    { 
    if (response.status != "connected") 
    { 
     top.location.href = "https://www.facebook.com/dialog/oauth?client_id=" + appId + "&redirect_uri=" + encodeURIComponent (redirectUrl) + "&scope=user_photos,friends_photos"; 
    } 
    else 
    { 
     // Start the application (this is just demo code)! 
     $(document.body).append ("<p>Authorized!</p>"); 
     FB.api('/me', function (response) { 

     $(document.body).append ("<pre>" + JSON.stringify (response, null, "\t") + "</pre>"); 
     }); 
    } 
    } 
    }); 

    </script>

來源

2013-07-14 Spilot

您絕對可以使用畫布頁網址本身。在同一頁面中，您可以輸入以下代碼。我已經做到了，並且工作得很好。

if(isset($_REQUEST["code"])) 
{ 

$code = $_REQUEST["code"]; 

    $my_url = "https://apps.facebook.com/CANVAS_APP_URL/"; 
    $token_url = "https://graph.facebook.com/oauth/access_token?". "client_id=" . $app_id . "&redirect_uri=" . urlencode($my_url) 
    . "&client_secret=" . $app_secret . "&code=" . $code; 

     $ch = curl_init(); 
     curl_setopt($ch, CURLOPT_URL, $token_url); 
     curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); 
     $output1 = curl_exec($ch); 
     curl_close($ch); 

    $tokenarray = explode("&", $output1); 
    $tokenarray1 = explode("=", $tokenarray[0]); 

    $access_token = $tokenarray1[1]; 

    $urltoopen = 'https://graph.facebook.com/me?access_token=' . $access_token; 

    $ch = curl_init(); 
     curl_setopt($ch, CURLOPT_URL, $urltoopen); 
     curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); 
     $output = curl_exec($ch); 
     curl_close($ch); 

    echo $output; 

}

希望這有助於！

〜ABW

來源

2013-07-23 17:13:39

如何從facebook畫布應用授權獲取已簽名的請求？

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