<?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@controlyourself.ca>
+ * @copyright 2008 StatusNet, Inc.
+ * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @link http://laconi.ca/
+ */
+
+if (!defined('LACONICA')) {
+ exit(1);
+}
-require_once('OAuth.php');
-
-class TwitterOAuthClient
+/**
+ * Class for talking to the Twitter API with OAuth.
+ *
+ * @category Integration
+ * @package StatusNet
+ * @author Zach Copley <zach@controlyourself.ca>
+ * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @link http://laconi.ca/
+ *
+ */
+class TwitterOAuthClient extends OAuthClient
{
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';
+ /**
+ * Constructor
+ *
+ * @param string $oauth_token the user's token
+ * @param string $oauth_token_secret the user's token secret
+ *
+ * @return nothing
+ */
function __construct($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, $oauth_token_secret);
- }
+ parent::__construct($consumer_key, $consumer_secret,
+ $oauth_token, $oauth_token_secret);
}
- function getRequestToken()
+ // XXX: the following two functions are to support the horrible hack
+ // of using the credentils field in Foreign_link to store both
+ // the access token and token secret. This hack should go away with
+ // 0.9, in which we can make DB changes and add a new column for the
+ // token itself.
+
+ static function packToken($token)
{
- $response = $this->oAuthGet(TwitterOAuthClient::$requestTokenURL);
- parse_str($response);
- $token = new OAuthToken($oauth_token, $oauth_token_secret);
- return $token;
+ return implode(chr(0), array($token->key, $token->secret));
}
- function getAuthorizeLink($request_token)
+ static function unpackToken($str)
{
- // Not sure Twitter actually looks at oauth_callback
-
- return TwitterOAuthClient::$authorizeURL .
- '?oauth_token=' . $request_token->key . '&oauth_callback=' .
- urlencode(common_local_url('twitterauthorization'));
+ $vals = explode(chr(0), $str);
+ return new OAuthToken($vals[0], $vals[1]);
}
- function getAccessToken()
+ /**
+ * 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)
{
- $response = $this->oAuthPost(TwitterOAuthClient::$accessTokenURL);
- parse_str($response);
- $token = new OAuthToken($oauth_token, $oauth_token_secret);
- return $token;
+ return parent::getAuthorizeLink(self::$authorizeURL,
+ $request_token,
+ common_local_url('twitterauthorization'));
}
- function verify_credentials()
+ /**
+ * Calls Twitter's /account/verify_credentials API method
+ *
+ * @return mixed the Twitter user
+ */
+ function verifyCredentials()
{
- $url = 'https://twitter.com/account/verify_credentials.json';
- $response = $this->oAuthGet($url);
+ $url = 'https://twitter.com/account/verify_credentials.json';
+ $response = $this->oAuthGet($url);
$twitter_user = json_decode($response);
return $twitter_user;
}
- function oAuthGet($url)
+ /**
+ * Calls Twitter's /stutuses/update API method
+ *
+ * @param string $status text of the status
+ * @param int $in_reply_to_status_id optional id of the status it's
+ * a reply to
+ *
+ * @return mixed the status
+ */
+ function statusesUpdate($status, $in_reply_to_status_id = null)
+ {
+ $url = 'https://twitter.com/statuses/update.json';
+ $params = array('status' => $status,
+ 'in_reply_to_status_id' => $in_reply_to_status_id);
+ $response = $this->oAuthPost($url, $params);
+ $status = json_decode($response);
+ return $status;
+ }
+
+ /**
+ * Calls Twitter's /stutuses/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)
{
- $request = OAuthRequest::from_consumer_and_token($this->consumer,
- $this->token, 'GET', $url, null);
- $request->sign_request($this->sha1_method,
- $this->consumer, $this->token);
- return $this->httpRequest($request->to_url());
+ $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 $statuses;
}
- function oAuthPost($url, $params = null)
+ /**
+ * Calls Twitter's /stutuses/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)
{
- $request = OAuthRequest::from_consumer_and_token($this->consumer,
- $this->token, 'POST', $url, $params);
- $request->sign_request($this->sha1_method,
- $this->consumer, $this->token);
+ $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";
+ }
- return $this->httpRequest($request->get_normalized_http_url(),
- $request->to_postdata());
+ $response = $this->oAuthGet($url);
+ $friends = json_decode($response);
+ return $friends;
}
- function httpRequest($url, $params = null)
+ /**
+ * Calls Twitter's /stutuses/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)
{
- $options = array(
- CURLOPT_RETURNTRANSFER => true,
- CURLOPT_FAILONERROR => true,
- CURLOPT_HEADER => false,
- CURLOPT_FOLLOWLOCATION => true,
- CURLOPT_USERAGENT => 'Laconica',
- CURLOPT_CONNECTTIMEOUT => 120,
- CURLOPT_TIMEOUT => 120,
- CURLOPT_HTTPAUTH => CURLAUTH_ANY,
- CURLOPT_SSL_VERIFYPEER => false,
-
- // Twitter is strict about accepting invalid "Expect" headers
-
- CURLOPT_HTTPHEADER => array('Expect:')
- );
-
- if (isset($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;
+ $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;
}
}