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<?php
require_once('OAuth.php');
class TwitterOAuthClient
{
public static $requestTokenURL = 'https://twitter.com/oauth/request_token';
public static $authorizeURL = 'https://twitter.com/oauth/authorize';
public static $accessTokenURL = 'https://twitter.com/oauth/access_token';
function __construct($oauth_token = null, $oauth_token_secret = null)
{
$this->sha1_method = new OAuthSignatureMethod_HMAC_SHA1();
$consumer_key = common_config('twitter', 'consumer_key');
$consumer_secret = common_config('twitter', 'consumer_secret');
$this->consumer = new OAuthConsumer($consumer_key, $consumer_secret);
$this->token = null;
if (isset($oauth_token) && isset($oauth_token_secret)) {
$this->token = new OAuthToken($oauth_token, $oauth_token_secret);
}
}
function getRequestToken()
{
$response = $this->oAuthGet(TwitterOAuthClient::$requestTokenURL);
parse_str($response);
$token = new OAuthToken($oauth_token, $oauth_token_secret);
return $token;
}
function getAuthorizeLink($request_token)
{
// Not sure Twitter actually looks at oauth_callback
return TwitterOAuthClient::$authorizeURL .
'?oauth_token=' . $request_token->key . '&oauth_callback=' .
urlencode(common_local_url('twitterauthorization'));
}
function getAccessToken()
{
$response = $this->oAuthPost(TwitterOAuthClient::$accessTokenURL);
parse_str($response);
$token = new OAuthToken($oauth_token, $oauth_token_secret);
return $token;
}
function verify_credentials()
{
$url = 'https://twitter.com/account/verify_credentials.json';
$response = $this->oAuthGet($url);
$twitter_user = json_decode($response);
return $twitter_user;
}
function oAuthGet($url)
{
$request = OAuthRequest::from_consumer_and_token($this->consumer,
$this->token, 'GET', $url, null);
$request->sign_request($this->sha1_method,
$this->consumer, $this->token);
return $this->httpRequest($request->to_url());
}
function oAuthPost($url, $params = null)
{
$request = OAuthRequest::from_consumer_and_token($this->consumer,
$this->token, 'POST', $url, $params);
$request->sign_request($this->sha1_method,
$this->consumer, $this->token);
return $this->httpRequest($request->get_normalized_http_url(),
$request->to_postdata());
}
function httpRequest($url, $params = null)
{
$options = array(
CURLOPT_RETURNTRANSFER => true,
CURLOPT_FAILONERROR => true,
CURLOPT_HEADER => false,
CURLOPT_FOLLOWLOCATION => true,
CURLOPT_USERAGENT => 'Laconica',
CURLOPT_CONNECTTIMEOUT => 120,
CURLOPT_TIMEOUT => 120,
CURLOPT_HTTPAUTH => CURLAUTH_ANY,
CURLOPT_SSL_VERIFYPEER => false,
// Twitter is strict about accepting invalid "Expect" headers
CURLOPT_HTTPHEADER => array('Expect:')
);
if (isset($params)) {
$options[CURLOPT_POST] = true;
$options[CURLOPT_POSTFIELDS] = $params;
}
$ch = curl_init($url);
curl_setopt_array($ch, $options);
$response = curl_exec($ch);
curl_close($ch);
return $response;
}
}
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