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index.php
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index.php
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<?php
session_start();
require_once('php-sdk/facebook.php');
$facebook = new Facebook(
array(
'appId' => '*******',
'secret' => '******',
)
);
$user = $facebook->getUser();
$accessToken = $facebook->getAccessToken();
$con = mysqli_connect("localhost","root","*****","Users");
if (!mysqli_connect_errno($con)) {
$result = mysql_query($con,"SELECT * FROM AccessTokens WHERE userID = '$user'");
if (mysql_num_rows($result) == 0) {
mysqli_query($con,"INSERT INTO AccessTokens (userID,accessToken) VALUES ('$user','$accessToken')");
}
}
if ($user != 0 && isset($_SESSION['loggedin'])) {
header('Location: home.php');
}
?>
<html>
<head>
<title>Our Page</title>
</head>
<body>
<div id="fb-root"></div>
<script>
window.fbAsyncInit = function() {
FB.init({
appId : '721823137830217', // App ID
channelUrl : 'ec2-54-245-17-195.us-west-2.compute.amazonaws.com/channel.html', // Channel File
status : true, // check login status
cookie : true, // enable cookies to allow the server to access the session
xfbml : true // parse XFBML
});
// Here we subscribe to the auth.authResponseChange JavaScript event. This event is fired
// for any authentication related change, such as login, logout or session refresh. This means that
// whenever someone who was previously logged out tries to log in again, the correct case below
// will be handled.
FB.Event.subscribe('auth.authResponseChange', function(response) {
// Here we specify what we do with the response anytime this event occurs.
if (response.status === 'connected') {
// The response object is returned with a status field that lets the app know the current
// login status of the person. In this case, we're handling the situation where they
// have logged in to the app.
testAPI();
} else if (response.status === 'not_authorized') {
// In this case, the person is logged into Facebook, but not into the app, so we call
// FB.login() to prompt them to do so.
// In real-life usage, you wouldn't want to immediately prompt someone to login
// like this, for two reasons:
// (1) JavaScript created popup windows are blocked by most browsers unless they
// result from direct interaction from people using the app (such as a mouse click)
// (2) it is a bad experience to be continually prompted to login upon page load.
FB.login();
} else {
// In this case, the person is not logged into Facebook, so we call the login()
// function to prompt them to do so. Note that at this stage there is no indication
// of whether they are logged into the app. If they aren't then they'll see the Login
// dialog right after they log in to Facebook.
// The same caveats as above apply to the FB.login() call here.
FB.login();
}
});
};
// Load the SDK asynchronously
(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));
// Here we run a very simple test of the Graph API after login is successful.
// This testAPI() function is only called in those cases.
function testAPI() {
console.log('Welcome! Fetching your information.... ');
FB.api('/me', function(response) {
console.log('Good to see you, ' + response.name + '.');
});
}
function fb_login(){
FB.login(function(response) {
if (response.authResponse) {
console.log('Welcome! Fetching your information.... ');
//console.log(response); // dump complete info
access_token = response.authResponse.accessToken; //get access token
user_id = response.authResponse.userID; //get FB UID
console.log('Your userID: ' + user_id);
FB.api('/me', function(response) {
user_email = response.email;
window.location.replace("log.php");
//get user email
// you can store this data into your database
});
} else {
//user hit cancel button
console.log('User cancelled login or did not fully authorize.');
}
}, {
scope: 'publish_stream,email,friends_birthday'
});
}
(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>
<?php
if ($user == 0) {
echo "<a href='#' onclick='fb_login();'><img src='login_1.png' border='0' alt=''></a>";
}
else {
echo "Thanks for logging out.";
$user_profile = $facebook->api('/me','GET');
echo "Name: " . $user_profile['name'];
}
?>
<!--
Below we include the Login Button social plugin. This button uses the JavaScript SDK to
present a graphical Login button that triggers the FB.login() function when clicked.
Learn more about options for the login button plugin:
/docs/reference/plugins/login/ -->
</body>