stories/app/includes/classes/twitter-api-oauth.php

162 lines
4.3 KiB
PHP
Executable File

<?php
/**
* twitter-timeline-php : Twitter API 1.1 user timeline implemented with PHP, a little JavaScript, and web intents
*
* @package twitter-timeline-php
* @author Kim Maida <contact@kim-maida.com>
* @license http://opensource.org/licenses/gpl-license.php GNU Public License
* @link http://github.com/kmaida/twitter-timeline-php
* @credits Based on a mish-mash of code from Rivers, Jimbo / James Mallison, and others at <http://stackoverflow.com/questions/12916539/simplest-php-example-for-retrieving-user-timeline-with-twitter-api-version-1-1>
*
**/
if (class_exists('TwitterAPITimeline') === false) {
class TwitterAPITimeline
{
private $consumer_key;
private $consumer_secret;
private $oauth_access_token;
private $oauth_access_token_secret;
private $getfield;
protected $oauth;
public $url;
public function __construct(array $settings)
{
if (!in_array('curl', get_loaded_extensions()))
{
throw new Exception('You need to install cURL, see: http://curl.haxx.se/docs/install.html');
}
if (!isset($settings['oauth_access_token'])
|| !isset($settings['oauth_access_token_secret'])
|| !isset($settings['consumer_key'])
|| !isset($settings['consumer_secret']))
{
throw new Exception('Make sure you are passing in the correct parameters');
}
$this->oauth_access_token = $settings['oauth_access_token'];
$this->oauth_access_token_secret = $settings['oauth_access_token_secret'];
$this->consumer_key = $settings['consumer_key'];
$this->consumer_secret = $settings['consumer_secret'];
}
public function setGetfield($string)
{
$search = array('#', ',', '+', ':');
$replace = array('%23', '%2C', '%2B', '%3A');
$string = str_replace($search, $replace, $string);
$this->getfield = $string;
return $this;
}
public function getGetfield()
{
return $this->getfield;
}
private function buildBaseString($baseURI, $method, $params)
{
$return = array();
ksort($params);
foreach($params as $key=>$value)
{
$return[] = "$key=" . $value;
}
return $method . "&" . rawurlencode($baseURI) . '&' . rawurlencode(implode('&', $return));
}
private function buildAuthorizationHeader($oauth)
{
$return = 'Authorization: OAuth ';
$values = array();
foreach($oauth as $key => $value)
{
$values[] = "$key=\"" . rawurlencode($value) . "\"";
}
$return .= implode(', ', $values);
return $return;
}
public function buildOauth($url)
{
$consumer_key = $this->consumer_key;
$consumer_secret = $this->consumer_secret;
$oauth_access_token = $this->oauth_access_token;
$oauth_access_token_secret = $this->oauth_access_token_secret;
$oauth = array(
'oauth_consumer_key' => $consumer_key,
'oauth_nonce' => time(),
'oauth_signature_method' => 'HMAC-SHA1',
'oauth_token' => $oauth_access_token,
'oauth_timestamp' => time(),
'oauth_version' => '1.0'
);
$getfield = $this->getGetfield();
if (!is_null($getfield))
{
$getfields = str_replace('?', '', explode('&', $getfield));
foreach ($getfields as $g)
{
$split = explode('=', $g);
$oauth[$split[0]] = $split[1];
}
}
$base_info = $this->buildBaseString($url, 'GET', $oauth);
$composite_key = rawurlencode($consumer_secret) . '&' . rawurlencode($oauth_access_token_secret);
$oauth_signature = base64_encode(hash_hmac('sha1', $base_info, $composite_key, true));
$oauth['oauth_signature'] = $oauth_signature;
$this->url = $url;
$this->oauth = $oauth;
return $this;
}
public function performRequest($return = true)
{
if (!is_bool($return))
{
throw new Exception('performRequest parameter must be true or false');
}
$header = array($this->buildAuthorizationHeader($this->oauth), 'Expect:');
$getfield = $this->getGetfield();
$options = array(
CURLOPT_HTTPHEADER => $header,
CURLOPT_HEADER => false,
CURLOPT_URL => $this->url,
CURLOPT_RETURNTRANSFER => true,
CURLOPT_SSL_VERIFYPEER => false
);
if ($getfield !== '')
{
$options[CURLOPT_URL] .= $getfield;
}
$feed = curl_init();
curl_setopt_array($feed, $options);
$json = curl_exec($feed);
curl_close($feed);
if ($return) { return $json; }
}
}
}
?>