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<?php
/**
* Twitter for PHP - library for sending messages to Twitter and receiving status updates.
*
* @author David Grudl (+ Bugfix by Curverider)
* @copyright Copyright (c) 2008 David Grudl
* @license New BSD License
* @link http://phpfashion.com/
* @version 1.0_MP
*/
class Twitter
{
/** @var int */
public static $cacheExpire = 1800; // 30 min
/** @var string */
public static $cacheDir;
/** @var user name */
private $user;
/** @var password */
private $pass;
/**
* Creates object using your credentials.
* @param string user name
* @param string password
* @throws Exception
*/
public function __construct($user, $pass)
{
if (!extension_loaded('curl')) {
throw new Exception('PHP extension CURL is not loaded.');
}
$this->user = $user;
$this->pass = $pass;
}
/**
* Sends message to the Twitter.
* @param string message encoded in UTF-8
* @return boolean TRUE on success or FALSE on failure
*/
public function send($message)
{
$result = $this->httpRequest(
'https://twitter.com/statuses/update.xml',
array('status' => $message)
);
return strpos($result, '<created_at>') !== FALSE;
}
/**
* Returns the 20 most recent statuses posted from you and your friends (optionally).
* @param bool with friends?
* @return SimpleXMLElement
* @throws Exception
*/
public function load($withFriends, $since = '')
{
$line = $withFriends ? 'friends_timeline' : 'user_timeline';
$url = "http://twitter.com/statuses/$line/$this->user.xml";
//if (!empty($since))
// $url .= "?since=" . urlencode($since);
$feed = $this->httpRequest($url);
if ($feed === FALSE) {
throw new Exception('Cannot load channel.');
}
$xml = new SimpleXMLElement($feed);
if (!$xml || !$xml->status) {
throw new Exception('Invalid channel.');
}
return $xml;
}
/**
* Process HTTP request.
* @param string URL
* @param array post data
* @return string|FALSE
*/
private function httpRequest($url, $post = NULL)
{
/*
if (!$post && self::$cacheDir) {
$cacheFile = self::$cacheDir . '/twitter.' . md5($url) . '.xml';
if (@filemtime($cacheFile) + self::$cacheExpire > time()) {
return file_get_contents($cacheFile);
}
}
*/
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $url);
// curl_setopt($curl, CURLOPT_USERPWD, "$this->user:$this->pass");
curl_setopt($curl, CURLOPT_HEADER, FALSE);
curl_setopt($curl, CURLOPT_TIMEOUT, 20);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt($curl, CURLOPT_FRESH_CONNECT, 1);
curl_setopt($curl, CURLOPT_HTTPHEADER, array('Expect:'));
if ($post) {
curl_setopt($curl, CURLOPT_USERPWD, "$this->user:$this->pass");
curl_setopt($curl, CURLOPT_POST, TRUE);
curl_setopt($curl, CURLOPT_POSTFIELDS, $post);
}
curl_setopt($curl, CURLOPT_RETURNTRANSFER, TRUE); // no echo, just return result
$result = curl_exec($curl);
$ok = curl_errno($curl) === 0 && curl_getinfo($curl, CURLINFO_HTTP_CODE) === 200;
if (!$ok) {
if (isset($cacheFile)) {
$result = @file_get_contents($cacheFile);
if (is_string($result)) {
return $result;
}
}
return FALSE;
}
/*
if (isset($cacheFile)) {
file_put_contents($cacheFile, $result);
}
*/
return $result;
}
}
|
