gnu-social/plugins/TwitterBridge/twitteroauthclient.php

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<?php
/**
* StatusNet, the distributed open-source microblogging tool
*
* Class for doing OAuth calls against Twitter
*
* PHP version 5
*
* LICENCE: This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* @category Integration
* @package StatusNet
* @author Zach Copley <zach@status.net>
* @copyright 2009-2010 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://status.net/
*/
if (!defined('STATUSNET') && !defined('LACONICA')) {
exit(1);
}
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/**
* Class for talking to the Twitter API with OAuth.
*
* @category Integration
* @package StatusNet
* @author Zach Copley <zach@status.net>
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://status.net/
*
*/
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class TwitterOAuthClient extends OAuthClient
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{
public static $requestTokenURL = 'https://twitter.com/oauth/request_token';
public static $authorizeURL = 'https://twitter.com/oauth/authorize';
public static $signinUrl = 'https://twitter.com/oauth/authenticate';
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public static $accessTokenURL = 'https://twitter.com/oauth/access_token';
/**
* Constructor
*
* @param string $oauth_token the user's token
* @param string $oauth_token_secret the user's token secret
*
* @return nothing
*/
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function __construct($oauth_token = null, $oauth_token_secret = null)
{
$consumer_key = common_config('twitter', 'consumer_key');
$consumer_secret = common_config('twitter', 'consumer_secret');
if (empty($consumer_key) && empty($consumer_secret)) {
$consumer_key = common_config(
'twitter',
'global_consumer_key'
);
$consumer_secret = common_config(
'twitter',
'global_consumer_secret'
);
}
parent::__construct(
$consumer_key,
$consumer_secret,
$oauth_token,
$oauth_token_secret
);
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}
// XXX: the following two functions are to support the horrible hack
// of using the credentils field in Foreign_link to store both
// the access token and token secret. This hack should go away with
// 0.9, in which we can make DB changes and add a new column for the
// token itself.
static function packToken($token)
{
return implode(chr(0), array($token->key, $token->secret));
}
static function unpackToken($str)
{
$vals = explode(chr(0), $str);
return new OAuthToken($vals[0], $vals[1]);
}
static function isPackedToken($str)
{
if (strpos($str, chr(0)) === false) {
return false;
} else {
return true;
}
}
/**
* Gets a request token from Twitter
*
* @return OAuthToken $token the request token
*/
function getRequestToken()
{
return parent::getRequestToken(
self::$requestTokenURL,
common_local_url('twitterauthorization')
);
}
/**
* Builds a link to Twitter's endpoint for authorizing a request token
*
* @param OAuthToken $request_token token to authorize
*
* @return the link
*/
function getAuthorizeLink($request_token, $signin = false)
{
$url = ($signin) ? self::$signinUrl : self::$authorizeURL;
return parent::getAuthorizeLink($url,
$request_token,
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common_local_url('twitterauthorization'));
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}
/**
* Fetches an access token from Twitter
*
* @param string $verifier 1.0a verifier
*
* @return OAuthToken $token the access token
*/
function getAccessToken($verifier = null)
{
return parent::getAccessToken(
self::$accessTokenURL,
$verifier
);
}
/**
* Calls Twitter's /account/verify_credentials API method
*
* @return mixed the Twitter user
*/
function verifyCredentials()
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{
$url = 'https://twitter.com/account/verify_credentials.json';
$response = $this->oAuthGet($url);
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$twitter_user = json_decode($response);
return $twitter_user;
}
/**
* Calls Twitter's /statuses/update API method
*
* @param string $status text of the status
* @param mixed $params optional other parameters to pass to Twitter,
* as defined. For back-compatibility, if an int
* is passed we'll consider it a reply-to ID.
*
* @return mixed the status
*/
function statusesUpdate($status, $params=array())
{
$url = 'https://twitter.com/statuses/update.json';
if (is_numeric($params)) {
$params = array('in_reply_to_status_id' => intval($params));
}
$params['status'] = $status;
// We don't have to pass 'source' as the oauth key is tied to an app.
$response = $this->oAuthPost($url, $params);
$status = json_decode($response);
return $status;
}
/**
* Calls Twitter's /statuses/friends_timeline API method
*
* @param int $since_id show statuses after this id
* @param int $max_id show statuses before this id
* @param int $cnt number of statuses to show
* @param int $page page number
*
* @return mixed an array of statuses
*/
function statusesFriendsTimeline($since_id = null, $max_id = null,
$cnt = null, $page = null)
{
$url = 'https://twitter.com/statuses/friends_timeline.json';
$params = array('since_id' => $since_id,
'max_id' => $max_id,
'count' => $cnt,
'page' => $page);
$qry = http_build_query($params);
if (!empty($qry)) {
$url .= "?$qry";
}
$response = $this->oAuthGet($url);
$statuses = json_decode($response);
return $statuses;
}
/**
* Calls Twitter's /statuses/home_timeline API method
*
* @param int $since_id show statuses after this id
* @param int $max_id show statuses before this id
* @param int $cnt number of statuses to show
* @param int $page page number
*
* @return mixed an array of statuses, similare to friends_timeline, except including retweets
*/
function statusesHomeTimeline($since_id = null, $max_id = null,
$cnt = null, $page = null)
{
$url = 'https://twitter.com/statuses/home_timeline.json';
$params = array('since_id' => $since_id,
'max_id' => $max_id,
'count' => $cnt,
'page' => $page);
$qry = http_build_query($params);
if (!empty($qry)) {
$url .= "?$qry";
}
$response = $this->oAuthGet($url);
$statuses = json_decode($response);
return $statuses;
}
/**
* Calls Twitter's /statuses/friends API method
*
* @param int $id id of the user whom you wish to see friends of
* @param int $user_id numerical user id
* @param int $screen_name screen name
* @param int $page page number
*
* @return mixed an array of twitter users and their latest status
*/
function statusesFriends($id = null, $user_id = null, $screen_name = null,
$page = null)
{
$url = "https://twitter.com/statuses/friends.json";
$params = array('id' => $id,
'user_id' => $user_id,
'screen_name' => $screen_name,
'page' => $page);
$qry = http_build_query($params);
if (!empty($qry)) {
$url .= "?$qry";
}
$response = $this->oAuthGet($url);
$friends = json_decode($response);
return $friends;
}
/**
* Calls Twitter's /statuses/friends/ids API method
*
* @param int $id id of the user whom you wish to see friends of
* @param int $user_id numerical user id
* @param int $screen_name screen name
* @param int $page page number
*
* @return mixed a list of ids, 100 per page
*/
function friendsIds($id = null, $user_id = null, $screen_name = null,
$page = null)
{
$url = "https://twitter.com/friends/ids.json";
$params = array('id' => $id,
'user_id' => $user_id,
'screen_name' => $screen_name,
'page' => $page);
$qry = http_build_query($params);
if (!empty($qry)) {
$url .= "?$qry";
}
$response = $this->oAuthGet($url);
$ids = json_decode($response);
return $ids;
}
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}