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<?php/*
 * login_with_amazon.php
 *
 * @(#) $Id: login_with_amazon.php,v 1.1 2014/03/17 09:45:08 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->server = 'Amazon';
 
 $client->debug = false;
 $client->debug_http = true;
 $client->redirect_uri = 'https://'.$_SERVER['HTTP_HOST'].
 dirname(strtok($_SERVER['REQUEST_URI'],'?')).'/login_with_amazon.php';
 
 $client->client_id = ''; $application_line = __LINE__;
 $client->client_secret = '';
 
 if(strlen($client->client_id) == 0
 || strlen($client->client_secret) == 0)
 die('Please go to Amazon Developer Center page '.
 'https://sellercentral.amazon.com/gp/homepage.html in the Register'.
 ' Your Application, create a new client ID, and in the line '.
 $application_line.' set the client_id to Cliente ID and '.
 'client_secret with Client Secret. The callback URL must be '.
 $client->redirect_uri.' but make sure the domain is valid and can '.
 'be resolved by a public DNS.');
 
 /* API permissions
 */
 $client->scope = 'profile';
 if(($success = $client->Initialize()))
 {
 if(($success = $client->Process()))
 {
 if(strlen($client->authorization_error))
 {
 $client->error = $client->authorization_error;
 $success = false;
 }
 elseif(strlen($client->access_token))
 {
 $success = $client->CallAPI(
 'https://api.amazon.com/user/profile',
 'GET', array(), array('FailOnAccessError'=>true), $user);
 }
 }
 $success = $client->Finalize($success);
 }
 if($client->exit)
 exit;
 if($success)
 {
 ?>
 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
 <html>
 <head>
 <title>Amazon OAuth client results</title>
 </head>
 <body>
 <?php
 echo '<h1>', HtmlSpecialChars($user->name),
 ' you have logged in successfully with Amazon!</h1>';
 echo '<pre>', HtmlSpecialChars(print_r($user, 1)), '</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>
 <pre>Error: <?php echo HtmlSpecialChars($client->error); ?></pre>
 </body>
 </html>
 <?php
 }
 
 ?>
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