使用 Facebook Graph API 上传照片时出现异常

发布于 2024-09-08 15:26:42 字数 1764 浏览 3 评论 0原文

我想在应用程序的默认相册中将用户的照片上传到 Facebook。此处的发布对此进行了描述： http://developers.facebook.com/docs/reference/api/photo

该方法已在这里得到解答：如何我使用 Facebook Graph API 将照片上传到相册。我正在使用以下内容：

$args = array(
  'message' => 'Photo Caption', 
  'image' => '@'.realpath("image.png")
);
$data = $facebook->api('/me/photos', 'post', $args);

但是，当我尝试执行此操作时，我收到异常“(#324) 需要上传文件”。我有一个有效的会话，并且有publish_stream 和 user_photos 权限。我可以使用 API 检索数据。该图像文件绝对有效，因为它可以使用 file_get_contents(realpath("image.png")) 加载。

我已经尝试过这个解决方案，使用curl，它工作得很好：使用 Facebook 的 Graph API 将照片上传到相册

$args = array(
  'message' => 'Photo from application',
  'pic.png' => '@'.realpath('pic.png')
);
$tok = $session['access_token']
$url = 'http://graph.facebook.com/'.$album_id.'/photos?access_token='.$tok;
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_HEADER, false);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $args);
$data = curl_exec($ch);

与 Facebook 的 PHP SDK curl 相比，它看起来像这样（使用相同的 $args 和 $url）：

$ch = curl_init();
$opts = self::$CURL_OPTS;
$opts[CURLOPT_POSTFIELDS] = http_build_query($args, null, '&');
$opts[CURLOPT_URL] = $url;
curl_setopt_array($ch, $opts);
$data= curl_exec($ch);

为什么 PHP 版本不起作用？看起来 http_build_query() 函数正在干扰加载图像。我对curl了解不够，无法理解这里发生的事情。

原文

I would like to upload a photo to facebook for a user in the default album for an application. This is described under publishing here:
http://developers.facebook.com/docs/reference/api/photo

The method has been answered here: How can I upload photos to album using Facebook Graph API. I am using the following:

$args = array(
  'message' => 'Photo Caption', 
  'image' => '@'.realpath("image.png")
);
$data = $facebook->api('/me/photos', 'post', $args);

However I get the exception "(#324) Requires upload file" when I attempt this. I have a valid session and I have the publish_stream and user_photos permissions. I can retrieve data using the API. The image file is definitely valid because it can be loaded with file_get_contents(realpath("image.png")).

I've tried this solution, using curl, which works perfectly:
Upload Photo To Album with Facebook's Graph API

$args = array(
  'message' => 'Photo from application',
  'pic.png' => '@'.realpath('pic.png')
);
$tok = $session['access_token']
$url = 'http://graph.facebook.com/'.$album_id.'/photos?access_token='.$tok;
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_HEADER, false);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $args);
$data = curl_exec($ch);

Compared with Facebook's PHP SDK curl which looks like this (using the same $args and $url):

$ch = curl_init();
$opts = self::$CURL_OPTS;
$opts[CURLOPT_POSTFIELDS] = http_build_query($args, null, '&');
$opts[CURLOPT_URL] = $url;
curl_setopt_array($ch, $opts);
$data= curl_exec($ch);

Why doesn't the PHP version work? Looks like the http_build_query() function is interfering with loading the image. I don't know enough about curl to understand what's going on here.

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゛清羽墨安 2024-09-15 15:26:42

我很高兴我遇到了同样的问题
您必须将 fileUpload 参数设置为 true ！

$facebook = new Facebook(array(
            'appId'  => $facebookapi_id,
            'secret' => $facebookapi_secret,
            'fileUpload' => true,
            'cookie' => true
          ));

I'm so glad I went trough the same problem
You have to set the fileUpload param to true !

$facebook = new Facebook(array(
            'appId'  => $facebookapi_id,
            'secret' => $facebookapi_secret,
            'fileUpload' => true,
            'cookie' => true
          ));

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忆依然 2024-09-15 15:26:42

Facebook 有意使用 http_build_query() 将 POST 字段转换为 GET 字符串，以阻止以 @ 开头的字段被意外或恶意地用于上传文件。这是 GitHub 问题。

对此问题的快速解决方法是删除SDK 中 src/facebook.php 中的 http_build_query()：

$opts[CURLOPT_POSTFIELDS] = http_build_query($params, null, '&');

变为：

$opts[CURLOPT_POSTFIELDS] = $params;

但是，如果您这样做，您应该采取措施过滤以 @ 开头的用户生成的消息。例如，您可以在每条消息的前面添加一个空格。

Facebook have intentionally transformed the POST fields to a GET string using http_build_query() to stop fields beginning with @ being used to accidentally or maliciously to upload files. Here's the GitHub issue.

A quick fix for this is to remove the http_build_query() from src/facebook.php in the SDK:

$opts[CURLOPT_POSTFIELDS] = http_build_query($params, null, '&');

Becomes:

$opts[CURLOPT_POSTFIELDS] = $params;

However if you do this you should take action to filter user generated messages that start with @. For example you could add a space to the front of each message.

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