I've been struggeling with the facebook connect for a few days now, I'm only using the PHP SDK downloaded from facebook.
I first used some custom code, but after that failed I just copied the code on facebook, but this still fails.
Is there anything I do wrong? I've created an app on facebook, added the right domain (I get redirected correctly).
Once people login, this is the URL they get redirected to:
http://www.mysite.com/index.php?state=33e35654a84559d246c152ed10e8150b&code=AQBGxCMu4vgbw5HgU8EIoyq8rhuHaKvtJQR-VbPMVH8bd2JMIRcxojqJ-l7XrjIdG9TNN05el14Jv8isbHbUWj9so-CdhaEqj7tLR-Rj6-JaOTA7QErrpfN_0XQN1CGCmvmTL6ZtoUupgkVwkzq_CWDT9lSoDPvNHu2F67Jqlsi2DfQZGE1J7pDzujBoSoJhDhs#_=_
The code I copied from facebook:
<?
// Remember to copy files from the SDK's src/ directory to a
// directory in your application on the server, such as php-sdk/
require_once('classes/facebook/facebook.php');
$config = array(
'appId' => 'appID here',
'secret' => 'secret here',
);
$facebook = new Facebook($config);
$user_id = $facebook->getUser();
?>
<html>
<head></head>
<body>
<?
if($user_id) {
// We have a user ID, so probably a logged in user.
// If not, we'll get an exception, which we handle below.
try {
$user_profile = $facebook->api('/me','GET');
echo "Name: " . $user_profile['name'];
} catch(FacebookApiException $e) {
// If the user is logged out, you can have a
// user ID even though the access token is invalid.
// In this case, we'll get an exception, so we'll
// just ask the user to login again here.
$login_url = $facebook->getLoginUrl();
echo 'Please login.';
error_log($e->getType());
error_log($e->getMessage());
}
} else {
// No user, print a link for the user to login
$login_url = $facebook->getLoginUrl();
echo 'Please login.';
}
?>
</body>
</html>
It turns out it had something to do with the certificate, after some looking around I found out that changing
if (curl_errno($ch) == 60) {
// CURLE_SSL_CACERT
to
if (curl_errno($ch) == 60 || curl_errno($ch) == 77) {
// CURLE_SSL_CACERT
solves the problem
Related
I am new to facebook graph api
i have written a small application for posting comments on the user profile.
the following is the code:
<?php
require_once 'config.php';
/* Get a valid session */
$user= $facebook->getUser();
$me = null;
if($user) {
//Check if session is valid
$me = $facebook->api('/me');
}
if($me) {
echo 'User is logged in and has a valid session';
print_r($me);
$id=getfirstpostid($facebook->api('/me/posts'));
echo "id is ".$id;
$message="This is done programatically";
$comment_id = $facebook->api('/'.$id.'/comments','POST',
array('message' => $message,));
//$like_id = $facebook->api('/'.$id.'/likes', 'POST');
}
else {
//$login_url = $facebook->getLoginUrl();
//header("Location: {$login_url}");
echo 'Session expired or user has not logged in yet.
Redirecting...';
$login_url=$facebook->getLoginUrl(array('req_perms'=>'publish_actions,user_likes,offline_access,manage_pages,user_friends',));
echo '<script>top.location.href="'. $login_url .'";</script>';
}
function getfirstpostid($feeds)
{
return $feeds['data'][0]['id'];
}
?>
<?php
$logoutUrl = $facebook->getLogoutUrl(array('next' => 'http://distanceeducationhelpline.org/',));
?>
<a href='<?php echo $appBaseUrl?>about.php' target='_top'>
About Us</a>
<a href='http://www.9itech.com' target='_top'>External Link</a>
<br/>
<br/>
<a href ="#" onclick="top.location.href='<?php echo $logoutUrl; ?>';
return false;">Logout</a>
a. While creating the app ,i have not provided secure Canvas Url and accordingly the Canvas page does not show up in facebook.
is it due to the secure canvas url not being proper that blank page comes in the canvas page url.
b. when i am accessing the user profile the profile does not ask for permission to post on his profile even though i have given permissions .
i am not able to get the likes and post comments to work.kindly update if there is any problem in code.
do we need to get access tokens in this case or the code is proper.
thanks
i have created a facebook app and it works well for new users if they start the app with the direct server link (https://www.mydomain.com/app/index.php) and use the login button.
But if they try to use the app within facebook (https://apps.facebook.com/myapp) as a canvas app(for the first time) then they see the "landing" page of my app and the log in button. But if they click on it, an errormessage appears, that the content of the iframe couldn't be displayed. If they start the app in a new tab, then the login process works. (see the error below, sorry it's german, maybe you are familiar with this type of error message?)
It would be desirable if the new user could use the login link in the canvas app.
How can this be achieved? My index.php looks like this: (i am using the facebook SDK)
<?php
require_once('php-sdk/facebook.php');
$config = array(
'appId' => 'YOUR_APP_ID',
'secret' => 'YOUR_APP_SECRET',
);
$facebook = new Facebook($config);
$user_id = $facebook->getUser();
?>
<html>
<head></head>
<body>
<?php
if($user_id) {
try {
$user_profile = $facebook->api('/me','GET');
echo "Name: " . $user_profile['name'];
} catch(FacebookApiException $e) {
$login_url = $facebook->getLoginUrl();
echo 'Please login.';
error_log($e->getType());
error_log($e->getMessage());
}
} else {
$login_url = $facebook->getLoginUrl();
echo 'Please login.';
}
?>
</body>
</html>
i have created a facebook app and it works well for new users if they start the app with the direct server link (https://www.mydomain.com/app/index.php) and use the login button.
But if they try to use the app within facebook (https://apps.facebook.com/myapp) as a canvas app(for the first time) then they see the "landing" page of my app and the log in button. But if they click on it, an errormessage appears, that the content of the iframe couldn't be displayed. If they start the app in a new tab, then the login process works. (see the error below, sorry it's german, maybe you are familiar with this type of error message?)
It would be desirable if the new user could use the login link in the canvas app.
How can this be achieved? My index.php looks like this: (i am using the facebook SDK)
<?php
require_once('php-sdk/facebook.php');
$config = array(
'appId' => 'YOUR_APP_ID',
'secret' => 'YOUR_APP_SECRET',
);
$facebook = new Facebook($config);
$user_id = $facebook->getUser();
?>
<html>
<head></head>
<body>
<?php
if($user_id) {
try {
$user_profile = $facebook->api('/me','GET');
echo "Name: " . $user_profile['name'];
} catch(FacebookApiException $e) {
$login_url = $facebook->getLoginUrl();
echo 'Please login.';
error_log($e->getType());
error_log($e->getMessage());
}
} else {
$login_url = $facebook->getLoginUrl();
echo 'Please login.';
}
?>
</body>
</html>
I develop a Facebook application and I use PHP-sdk I use the algorithm described in the official documentation to allow user joining my app then I store his/her user_id in the database. My app uses publish_stream permissions so it publishes posts to the user's time line automatically.
I found that the application, always, does not able to publish posts for some of the registered users in the database (not all of them). I account this for they may be registered to the database before they give approval for the required permissions. The following is a blue print for the code that I use from the official documentation of Facebook api:
<?php
require_once('php-sdk/facebook.php');
$config = array(
'appId' => 'YOUR_APP_ID',
'secret' => 'YOUR_APP_SECRET',
);
$facebook = new Facebook($config);
$user_id = $facebook->getUser();
?>
<html>
<head></head>
<body>
<?php
if($user_id) {
try {
/* $user_profile = $facebook->api('/me','GET');
echo "Name: " . $user_profile['name'];*/
//Here I run the code to save.
saveTheUserIdToRecordInTheDB($user_id);
//hypothetical function to save
} catch(FacebookApiException $e) {
// If the user is logged out, you can have a
// user ID even though the access token is invalid.
// In this case, we'll get an exception, so we'll
// just ask the user to login again here.
$login_url = $facebook->getLoginUrl();
echo 'Please login.';
error_log($e->getType());
error_log($e->getMessage());
}
} else {
// No user, print a link for the user to login
$login_url = $facebook->getLoginUrl();
echo 'Please login.';
}
?>
</body>
</html>
My, main, question is: If the user clicked on the login link, and then he/she does not continue for any reason (losing the internet connection, refusing giving the permissions to the app, etc), would it possible the hypothetical function saveTheUserIdToRecordInTheDB() to run and save that user's Facebook's ID to the database?
Or What's the explanation for there are some users are not posts publishable?
I have searched the web high and low and can´t figure out the problem I´m facing. I have a page tab application on Facebook, the user likes the page to start and then he can answer some questions, I can get the facebook connect to function but I can not get the user id and save it to the database.
I have this in my index page
<? include('db.php');
include_once("config.php");
// Finnur út hvaða spurninga sett á að nota
$sp_set = 1;
require_once 'facebook-php-sdk/src/facebook.php';
// Create our Application instance.
$facebook = new Facebook( array('appId' => '289393321124676',
'secret' => 'd47b7871e0a7fb475db6e2a643f675ed', 'cookie' => true, ));
$signed_request = $facebook -> getSignedRequest();
$like_status = $signed_request["page"]["liked"];
$user = $facebook->getUser();
//If the page is liked then display full app.
?>
And the user id is always null, when the user submits the questions everything is saved to the database but user is 0.
Please help
$user = $facebook->getUser();
This will not get you any user id, unless the user has connected to your app first.
So you have to implement either the client-side or the server-side Auth flow in your app. https://developers.facebook.com/docs/authentication/pagetab/
Try this example:
<?php
$secret = '********************************'; // App Secret
$app_id = '***************'; // App ID
$page_url = 'https://www.facebook.com/*******'; // FB fan page URL, where the application tab is installed
require 'src/facebook.php';
$facebook = new Facebook(array(
'appId' => $app_id,
'secret' => $secret,
));
// Get User ID
$user = $facebook->getUser();
if ($user) {
try {
// Proceed knowing you have a logged in user who's authenticated.
$user_profile = $facebook->api('/me');
} catch (FacebookApiException $e) {
error_log($e);
$user = null;
}
}
// Login url will be needed depending on current user state.
if (!$user) {
$loginUrl = $facebook->getLoginUrl(array('redirect_uri' => $page_url.'?sk=app_'.$app_id));
}
$signed_request = $facebook->getSignedRequest();
?><!DOCTYPE html>
<html>
<body><pre>
<?php
if (!$user): // isn't authorized
echo 'Authorize app';
else:
if ($signed_request['page']['liked']): // likes
echo 'The page is liked by user with id '.$signed_request['user_id'];
else:
echo 'The page is <strong>NOT</strong> liked by user with id '.$signed_request['user_id'];
endif;
endif;
?>
</pre></body>
</html>
I was having a similar issue. I ended up using the FB JS-SDK to invoke the oAuth dialog to allow the user to connect to my app and grant me permissions. At that point you can access their user id and whatever other info they're granted you permission for.
Add the following code to your window.fbAsyncInit call:
FB.login(function(response) {
if (response.authResponse) {
console.log('Welcome! Fetching your information.... ');
FB.api('/me', function(response) {
console.log('Good to see you, ' + response.name + '.');
});
} else {
console.log('User cancelled login or did not fully authorize.');
}
});
Source: https://developers.facebook.com/docs/reference/javascript/FB.login/