更新2:
OK、変更することで「一種の」動作を実現しました。
$loginUrl = $facebook->getLoginUrl(array(
'canvas' => 1,
'fbconnect' => 0,
'req_perms' => 'publish_stream',
'next' => 'http://'.$_SERVER['SERVER_NAME'].'/success.php',
'cancel_url' => 'http://'.$_SERVER['SERVER_NAME'].'/cancel.php'
));
これに:
$loginUrl = $facebook->getLoginUrl(array(
'canvas' => 1,
'fbconnect' => 0,
'req_perms' => 'publish_stream',
'next' => 'http://'.$_SERVER['SERVER_NAME'].'/success.php',
'cancel_url' => 'http://'.$_SERVER['SERVER_NAME'].'/cancel.php'
));
header('Location: '.$loginUrl);
つまり、を追加しましたheader('Location: '.$loginUrl);
。
しかし、ページは奇妙に動作しています。ページに移動してログインし、ページを更新して再度ログインすると、ページへの投稿の許可を求められ、最終的にはページに投稿します。
なぜ2回ログインする必要があるのですか?
更新1:
私は今、機能していないように見える次のスクリプトを持っています。この状態では、自分のウォールに投稿しようとしていますが、最終的には友達のウォールにも投稿したいと思います。
<?php
/**
*
* Copyright 2011 Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License. You may obtain
* a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*/
require 'facebook.php';
// Create our Application instance (replace this with your appId and secret).
$facebook = new Facebook(array(
'appId' => '<appId removed for security reasons>',
'secret' => '<secret removed for security reasons>',
'cookie' => true,
));
// We may or may not have this data based on a $_GET or $_COOKIE based session.
//
// If we get a session here, it means we found a correctly signed session using
// the Application Secret only Facebook and the Application know. We dont know
// if it is still valid until we make an API call using the session. A session
// can become invalid if it has already expired (should not be getting the
// session back in this case) or if the user logged out of Facebook.
$session = $facebook->getSession();
$me = null;
// Session based API call.
if ($session) {
try {
$uid = $facebook->getUser();
$me = $facebook->api('/me');
$post = $facebook->api("/me/feed", "POST", array('message' => 'Hello! I\'m using the FB Graph API!'));
} catch (FacebookApiException $e) {
error_log($e);
}
}
// login or logout url will be needed depending on current user state.
if ($me) {
$logoutUrl = $facebook->getLogoutUrl();
} else {
$loginUrl = $facebook->getLoginUrl(array(
'canvas' => 1,
'fbconnect' => 0,
'req_perms' => 'publish_stream',
'next' => 'http://'.$_SERVER['SERVER_NAME'].'/success.php',
'cancel_url' => 'http://'.$_SERVER['SERVER_NAME'].'/cancel.php'
));
}
?>
<!doctype html>
<html xmlns:fb="http://www.facebook.com/2008/fbml">
<head>
<title>php-sdk</title>
<style>
body {
font-family: 'Lucida Grande', Verdana, Arial, sans-serif;
}
h1 a {
text-decoration: none;
color: #3b5998;
}
h1 a:hover {
text-decoration: underline;
}
</style>
</head>
<body>
<!--
We use the JS SDK to provide a richer user experience. For more info,
look here: http://github.com/facebook/connect-js
-->
<div id="fb-root"></div>
<script>
window.fbAsyncInit = function() {
FB.init({
appId : '<?php echo $facebook->getAppId(); ?>',
session : <?php echo json_encode($session); ?>, // don't refetch the session when PHP already has it
status : true, // check login status
cookie : true, // enable cookies to allow the server to access the session
xfbml : true // parse XFBML
});
// whenever the user logs in, we refresh the page
FB.Event.subscribe('auth.login', function() {
window.location.reload();
});
};
(function() {
var e = document.createElement('script');
e.src = document.location.protocol + '//connect.facebook.net/en_US/all.js';
e.async = true;
document.getElementById('fb-root').appendChild(e);
}());
</script>
<h1><a href="example.php">php-sdk</a></h1>
<?php if ($me): ?>
<a href="<?php echo $logoutUrl; ?>">
<img src="http://static.ak.fbcdn.net/rsrc.php/z2Y31/hash/cxrz4k7j.gif">
</a>
<?php else: ?>
<div>
Using JavaScript & XFBML: <fb:login-button></fb:login-button>
</div>
<?php endif ?>
<h3>Session</h3>
<?php if ($me): ?>
<pre><?php print_r($session); ?></pre>
<h3>You</h3>
<img src="https://graph.facebook.com/<?php echo $uid; ?>/picture">
<?php echo $me['name']; ?>
<h3>Your User Object</h3>
<pre><?php print_r($me); ?></pre>
<?php else: ?>
<strong><em>You are not Connected.</em></strong>
<?php endif ?>
</body>
</html>
次のエラーが発生します。
[Wed Apr 27 22:28:16 2011] [error] [client <ip address removed for security reasons>] OAuthException: (#200) The user hasn't authorized the application to perform this action, referer: http://<ip address removed for security reasons>/index.php
元の質問:
誰かがFacebookの詳細を使用して自分のページにログインできるようにする次の作業スクリプトがあります。その後、access_tokenをキャプチャして、グラフAPIで使用できるようにします。
<?php
/**
*
* Copyright 2011 Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License. You may obtain
* a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*/
require 'facebook.php';
// Create our Application instance (replace this with your appId and secret).
$facebook = new Facebook(array(
'appId' => 'app id goes here',
'secret' => 'secret id goes here',
'cookie' => true,
));
// We may or may not have this data based on a $_GET or $_COOKIE based session.
//
// If we get a session here, it means we found a correctly signed session using
// the Application Secret only Facebook and the Application know. We dont know
// if it is still valid until we make an API call using the session. A session
// can become invalid if it has already expired (should not be getting the
// session back in this case) or if the user logged out of Facebook.
$session = $facebook->getSession();
$me = null;
// Session based API call.
if ($session) {
try {
$uid = $facebook->getUser();
$me = $facebook->api('/me');
} catch (FacebookApiException $e) {
error_log($e);
}
}
// login or logout url will be needed depending on current user state.
if ($me) {
$logoutUrl = $facebook->getLogoutUrl();
} else {
$loginUrl = $facebook->getLoginUrl();
}
?>
<!doctype html>
<html xmlns:fb="http://www.facebook.com/2008/fbml">
<head>
<title>php-sdk</title>
<style>
body {
font-family: 'Lucida Grande', Verdana, Arial, sans-serif;
}
h1 a {
text-decoration: none;
color: #3b5998;
}
h1 a:hover {
text-decoration: underline;
}
</style>
</head>
<body>
<!--
We use the JS SDK to provide a richer user experience. For more info,
look here: http://github.com/facebook/connect-js
-->
<div id="fb-root"></div>
<script>
window.fbAsyncInit = function() {
FB.init({
appId : '<?php echo $facebook->getAppId(); ?>',
session : <?php echo json_encode($session); ?>, // don't refetch the session when PHP already has it
status : true, // check login status
cookie : true, // enable cookies to allow the server to access the session
xfbml : true // parse XFBML
});
// whenever the user logs in, we refresh the page
FB.Event.subscribe('auth.login', function() {
window.location.reload();
});
};
(function() {
var e = document.createElement('script');
e.src = document.location.protocol + '//connect.facebook.net/en_US/all.js';
e.async = true;
document.getElementById('fb-root').appendChild(e);
}());
</script>
<h1><a href="example.php">php-sdk</a></h1>
<?php if ($me): ?>
<a href="<?php echo $logoutUrl; ?>">
<img src="http://static.ak.fbcdn.net/rsrc.php/z2Y31/hash/cxrz4k7j.gif">
</a>
<?php else: ?>
<div>
Using JavaScript & XFBML: <fb:login-button></fb:login-button>
</div>
<?php endif ?>
<h3>Session</h3>
<?php if ($me): ?>
<pre><?php print_r($session); ?></pre>
<h3>You</h3>
<img src="https://graph.facebook.com/<?php echo $uid; ?>/picture">
<?php echo $me['name']; ?>
<h3>Your User Object</h3>
<pre><?php print_r($me); ?></pre>
<?php else: ?>
<strong><em>You are not Connected.</em></strong>
<?php endif ?>
</body>
</html>
ユーザーがログインすると、次の方法で友達のリストを取得できることを理解しています。
https://graph.facebook.com/me/friends?access_token=...
私が理解できないのは、拡張アクセス許可を使用する方法です。これにより、私のアプリはユーザーの友達のFacebookウォールに投稿できます。
どうやら私は拡張許可に加えて以下を使用することになっています:
curl -F 'access_token=...' \
-F 'message=Hello, Arjun. I like this new API.' \
https://graph.facebook.com/arjun/feed
PHPからこれを行う方法がわかりません。