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File: login_with_linkedin.php

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  Classes of Manuel Lemos  >  PHP OAuth API  >  login_with_linkedin.php  >  Download  
File: login_with_linkedin.php
Role: Example script
Content type: text/plain
Description: Example logging in with LinkedIn using OAuth
Class: PHP OAuth API
Authorize and access APIs using OAuth
Author: By
Last change: Changed API calls to use https.
Added an example of API call to get the email address.
Date: 19 days ago
Size: 2,891 bytes
 

Contents

Class file image Download
<?php
/*
 * login_with_linkedin.php
 *
 * @(#) $Id: login_with_linkedin.php,v 1.4 2014/12/05 03:34:00 mlemos Exp $
 *
 */

    /*
     *  Get the http.php file from http://www.phpclasses.org/httpclient
     */
    
require('http.php');
    require(
'oauth_client.php');

    
$client = new oauth_client_class;
    
$client->debug false;
    
$client->debug_http true;
    
$client->server 'LinkedIn';
    
$client->redirect_uri 'http://'.$_SERVER['HTTP_HOST'].
        
dirname(strtok($_SERVER['REQUEST_URI'],'?')).'/login_with_linkedin.php';

    
/*
     * Uncomment the next line if you want to use
     * the pin based authorization flow
     */
    // $client->redirect_uri = 'oob';

    /*
     * Was this script included defining the pin the
     * user entered to authorize the API access?
     */
    
if(defined('OAUTH_PIN'))
        
$client->pin OAUTH_PIN;

    
$client->client_id ''$application_line __LINE__;
    
$client->client_secret '';

    
/*  API permission scopes
     *  Separate scopes with a space, not with +
     */
    
$client->scope 'r_fullprofile r_emailaddress';

    if(
strlen($client->client_id) == 0
    
|| strlen($client->client_secret) == 0)
        die(
'Please go to LinkedIn Apps page https://www.linkedin.com/secure/developer?newapp= , '.
            
'create an application, and in the line '.$application_line.
            
' set the client_id to Consumer key and client_secret with Consumer secret. '.
            
'The Callback URL must be '.$client->redirect_uri).' Make sure you enable the '.
            
'necessary permissions to execute the API calls your application needs.';

    if((
$success $client->Initialize()))
    {
        if((
$success $client->Process()))
        {
            if(
strlen($client->access_token))
            {
                
$success $client->CallAPI(
                    
'https://api.linkedin.com/v1/people/~'
                    
'GET', array(
                        
'format'=>'json'
                    
), array('FailOnAccessError'=>true), $user);

                
/*
                 * Use this if you just want to get the LinkedIn user email address
                 */
/*
                $success = $client->CallAPI(
                    'https://api.linkedin.com/v1/people/~/email-address', 
                    'GET', array(
                        'format'=>'json'
                    ), array('FailOnAccessError'=>true), $email);
*/
            
}
        }
        
$success $client->Finalize($success);
    }
    if(
$client->exit)
        exit;
    if(
strlen($client->authorization_error))
    {
        
$client->error $client->authorization_error;
        
$success false;
    }
    if(
$success)
    {
?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>LinkedIn OAuth client results</title>
</head>
<body>
<?php
        
echo '<h1>'HtmlSpecialChars($user->firstName), 
            
' you have logged in successfully with LinkedIn!</h1>';
        echo 
'<pre>'HtmlSpecialChars(print_r($user1)), '</pre>';
?>
</body>
</html>
<?php
    
}
    else
    {
?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>OAuth client error</title>
</head>
<body>
<h1>OAuth client error</h1>
<p>Error: <?php echo HtmlSpecialChars($client->error); ?></p>
</body>
</html>
<?php
    
}

?>