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version 0.2.0-beta. includes support for oauth 1.0a and fixes several…
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… bugs.
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@abraham
abraham committed Nov 5, 2009
1 parent bb524c9 commit 83e3670
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40 changes: 40 additions & 0 deletions callback.php
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<?php
/**
* @file
* Take the user when they return from Twitter. Get access tokens.
* Verify credentials and redirect to based on response from Twitter.
*/

/* Start session and load lib */
session_start();
require_once('twitteroauth/twitteroauth.php');
require_once('config.php');

/* If the oauth_token is old redirect to the connect page. */
if (isset($_REQUEST['oauth_token']) && $_SESSION['oauth_token'] !== $_REQUEST['oauth_token']) {
$_SESSION['oauth_status'] = 'oldtoken';
header('Location: ./clearsessions.php');
}

/* Create TwitteroAuth object with app key/secret and token key/secret from default phase */
$connection = new TwitterOAuth(CONSUMER_KEY, CONSUMER_SECRET, $_SESSION['oauth_token'], $_SESSION['oauth_token_secret']);

/* Request access tokens from twitter */
$access_token = $connection->getAccessToken($_REQUEST['oauth_verifier']);

/* Save the access tokens. Normally these would be saved in a database for future use. */
$_SESSION['access_token'] = $access_token;

/* Remove no longer needed request tokens */
unset($_SESSION['oauth_token']);
unset($_SESSION['oauth_token_secret']);

/* If HTTP response is 200 continue otherwise send to connect page to retry */
if (200 == $connection->http_code) {
/* The user has been verified and the access tokens can be saved for future use */
$_SESSION['status'] = 'verified';
header('Location: ./index.php');
} else {
/* Save HTTP status for error dialog on connnect page.*/
header('Location: ./clearsessions.php');
}
5 changes: 3 additions & 2 deletions config.php
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Expand Up @@ -5,5 +5,6 @@
* A single location to store configuration.
*/

define("CONSUMER_KEY", "CONSUMER_KEY_GOES_HERE");
define("CONSUMER_SECRET", "CONSUMER_SECRET_GOES_HERE");
define("CONSUMER_KEY", "");
define("CONSUMER_SECRET", "");
define("OAUTH_CALLBACK", "");
11 changes: 11 additions & 0 deletions connect.php
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<?php

/**
* @file
* Get a request token from twitter and present authorization URL to user
*/

$content = '<a href="./redirect.php"><img src="./images/lighter.png" alt="Sign in with Twitter"/></a>';

/* Include HTML to display on the page */
include('html.inc');
37 changes: 37 additions & 0 deletions html.inc
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>Twitter OAuth in PHP</title>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
<style type="text/css">
img {border-width: 0}
* {font-family:'Lucida Grande', sans-serif;}
</style>
</head>
<body>
<div>
<h2>Welcome to a Twitter OAuth PHP example.</h2>

<p>This site is a basic showcase of Twitters OAuth authentication method. If you are having issues try <a href='./clearsessions.php'>clearing your session</a>.</p>

<p>
Links:
<a href='http://github.com/abraham/twitteroauth'>Source Code</a> &amp;
<a href='http://wiki.github.com/abraham/twitteroauth/documentation'>Documentation</a> |
Contact @<a href='http://twitter.com/abraham'>abraham</a>
</p>
<hr />
<?php if (isset($menu)) { ?>
<?php echo $menu; ?>
<?php } ?>
</div>
<?php if (isset($status_text)) { ?>
<?php echo '<h3>'.$status_text.'</h3>'; ?>
<?php } ?>
<p>
<?php echo $content; ?>
</p>

</body>
</html>
128 changes: 30 additions & 98 deletions index.php
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@@ -1,101 +1,33 @@
<?php
// require twitterOAuth lib
require_once('twitteroauth/twitterOAuth.php');

/* Sessions are used to keep track of tokens while user authenticates with twitter */
session_start();
/* Consumer key from twitter */
$consumer_key = '';
/* Consumer Secret from twitter */
$consumer_secret = '';
/* Set up placeholder */
$content = NULL;
/* Set state if previous session */
$state = $_SESSION['oauth_state'];
/* Checks if oauth_token is set from returning from twitter */
$session_token = $_SESSION['oauth_request_token'];
/* Checks if oauth_token is set from returning from twitter */
$oauth_token = $_REQUEST['oauth_token'];
/* Set section var */
$section = $_REQUEST['section'];

/* Clear PHP sessions */
if ($_REQUEST['test'] === 'clear') {/*{{{*/
session_destroy();
session_start();
}/*}}}*/

/* If oauth_token is missing get it */
if ($_REQUEST['oauth_token'] != NULL && $_SESSION['oauth_state'] === 'start') {/*{{{*/
$_SESSION['oauth_state'] = $state = 'returned';
}/*}}}*/

/*
* Switch based on where in the process you are
*
* 'default': Get a request token from twitter for new user
* 'returned': The user has authorize the app on twitter
/**
* @file
* User has successfully authenticated with Twitter. Access tokens saved to session and DB.
*/
switch ($state) {/*{{{*/
default:
/* Create TwitterOAuth object with app key/secret */
$to = new TwitterOAuth($consumer_key, $consumer_secret);
/* Request tokens from twitter */
$tok = $to->getRequestToken();

/* Save tokens for later */
$_SESSION['oauth_request_token'] = $token = $tok['oauth_token'];
$_SESSION['oauth_request_token_secret'] = $tok['oauth_token_secret'];
$_SESSION['oauth_state'] = "start";

/* Build the authorization URL */
$request_link = $to->getAuthorizeURL($token);

/* Build link that gets user to twitter to authorize the app */
$content = 'Click on the link to go to twitter to authorize your account.';
$content .= '<br /><a href="'.$request_link.'">'.$request_link.'</a>';
break;
case 'returned':
/* If the access tokens are already set skip to the API call */
if ($_SESSION['oauth_access_token'] === NULL && $_SESSION['oauth_access_token_secret'] === NULL) {
/* Create TwitterOAuth object with app key/secret and token key/secret from default phase */
$to = new TwitterOAuth($consumer_key, $consumer_secret, $_SESSION['oauth_request_token'], $_SESSION['oauth_request_token_secret']);
/* Request access tokens from twitter */
$tok = $to->getAccessToken();

/* Save the access tokens. Normally these would be saved in a database for future use. */
$_SESSION['oauth_access_token'] = $tok['oauth_token'];
$_SESSION['oauth_access_token_secret'] = $tok['oauth_token_secret'];
}
/* Random copy */
$content = 'your account should now be registered with twitter. Check here:<br />';
$content .= '<a href="https://twitter.com/account/connections">https://twitter.com/account/connections</a>';

/* Create TwitterOAuth with app key/secret and user access key/secret */
$to = new TwitterOAuth($consumer_key, $consumer_secret, $_SESSION['oauth_access_token'], $_SESSION['oauth_access_token_secret']);
/* Run request on twitter API as user. */
$content = $to->OAuthRequest('https://twitter.com/account/verify_credentials.xml', array(), 'GET');
//$content = $to->OAuthRequest('https://twitter.com/statuses/update.xml', array('status' => 'Test OAuth update. #testoauth'), 'POST');
//$content = $to->OAuthRequest('https://twitter.com/statuses/replies.xml', array(), 'POST');
break;
}/*}}}*/
?>

<html>
<head>
<title>Twitter OAuth in PHP</title>
</head>
<body>
<h2>Welcome to a Twitter OAuth PHP example.</h2>
<p>This site is a basic showcase of Twitters new OAuth authentication method. Everything is saved in sessions. If you want to start over <a href='<?php echo $_SERVER['PHP_SELF']; ?>?test=clear'>clear sessions</a>.</p>

<p>
Get the code powering this at <a href='http://github.com/abraham/twitteroauth'>http://github.com/abraham/twitteroauth</a>
<br />
Read the documentation at <a href='https://docs.google.com/View?docID=dcf2dzzs_2339fzbfsf4'>https://docs.google.com/View?docID=dcf2dzzs_2339fzbfsf4</a>
</p>

<p><pre><?php print_r($content); ?><pre></p>

</body>
</html>
/* Load required lib files. */
session_start();
require_once('twitteroauth/twitteroauth.php');
require_once('config.php');

/* Get user access tokens out of the session. */
$access_token = $_SESSION['access_token'];
/* If access tokens are not available redirect to connect page. */
if (empty($access_token['oauth_token']) || empty($access_token['oauth_token_secret'])) {
header('Location: '.$home_page.'/clearsessions.php');
}

/* Create a TwitterOauth object with consumer/user tokens. */
$connection = new TwitterOAuth(CONSUMER_KEY, CONSUMER_SECRET, $access_token['oauth_token'], $access_token['oauth_token_secret']);

/* If method is set change API call made. Test is called by default. */
$content = '<pre>'.$connection->get('account/verify_credentials').'</pre>';

/* Some example calls */
//$connection->get('users/show', array('screen_name' => 'abraham')));
//$connection->post('statuses/update', array('status' => date(DATE_RFC822)));
//$connection->post('statuses/destroy', array('id' => 5437877770));
//$connection->post('friendships/create', array('id' => 9436992)));
//$connection->post('friendships/destroy', array('id' => 9436992)));

/* Include HTML to display on the page */
include('html.inc');
28 changes: 28 additions & 0 deletions redirect.php
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<?php

/* Start session and load lib */
session_start();
require_once('twitteroauth/twitteroauth.php');
require_once('config.php');

/* Create TwitterOAuth object and get request token */
$connection = new TwitterOAuth(CONSUMER_KEY, CONSUMER_SECRET);

/* Get request token */
$request_token = $connection->getRequestToken(OAUTH_CALLBACK);

/* Save request token to session */
$_SESSION['oauth_token'] = $token = $request_token['oauth_token'];
$_SESSION['oauth_token_secret'] = $request_token['oauth_token_secret'];

/* If last connection fails don't display authorization link */
switch ($connection->http_code) {
case 200:
/* Build authorize URL */
$url = $connection->getAuthorizeURL($token);
header('Location: ' . $url);
break;
default:
echo 'Could not connect to Twitter. Refresh the page or try again later.';
break;
}
5 changes: 2 additions & 3 deletions twitteroauth/OAuth.php
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Expand Up @@ -11,10 +11,9 @@ class OAuthConsumer {
public $key;
public $secret;

function __construct($key, $secret, $callback_url=NULL) {
function __construct($key, $secret) {
$this->key = $key;
$this->secret = $secret;
$this->callback_url = $callback_url;
}

function __toString() {
Expand Down Expand Up @@ -173,7 +172,7 @@ class OAuthRequest {
private $http_url;
// for debug purposes
public $base_string;
public static $version = '1.0';
public static $version = '1.0a';
public static $POST_INPUT = 'php://input';

function __construct($http_method, $http_url, $parameters=NULL) {
Expand Down
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