<?php
/*
- * Laconica - a distributed open-source microblogging tool
- * Copyright (C) 2008, Controlez-Vous, Inc.
+ * StatusNet - the distributed open-source microblogging tool
+ * Copyright (C) 2008, 2009, StatusNet, Inc.
*
* 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
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
-if (!defined('LACONICA')) { exit(1); }
-
-function get_twitter_data($uri, $screen_name, $password) {
+if (!defined('STATUSNET') && !defined('LACONICA')) {
+ exit(1);
+}
- $options = array(
- CURLOPT_USERPWD => sprintf("%s:%s", $screen_name, $password),
- CURLOPT_RETURNTRANSFER => true,
- CURLOPT_FAILONERROR => true,
- CURLOPT_HEADER => false,
- CURLOPT_FOLLOWLOCATION => true,
- // CURLOPT_USERAGENT => "identi.ca",
- CURLOPT_CONNECTTIMEOUT => 120,
- CURLOPT_TIMEOUT => 120,
-
- # Twitter is strict about accepting invalid "Expect" headers
- CURLOPT_HTTPHEADER => array('Expect:')
- );
+define('TWITTER_SERVICE', 1); // Twitter is foreign_service ID 1
+function update_twitter_user($twitter_id, $screen_name)
+{
+ $uri = 'http://twitter.com/' . $screen_name;
+ $fuser = new Foreign_user();
- $ch = curl_init($uri);
- curl_setopt_array($ch, $options);
- $data = curl_exec($ch);
- $errmsg = curl_error($ch);
+ $fuser->query('BEGIN');
- if ($errmsg) {
- common_debug("Twitter bridge - cURL error: $errmsg - trying to load: $uri with user $twit_user.",
- __FILE__);
- }
+ // Dropping down to SQL because regular DB_DataObject udpate stuff doesn't seem
+ // to work so good with tables that have multiple column primary keys
- curl_close($ch);
+ // Any time we update the uri for a forein user we have to make sure there
+ // are no dupe entries first -- unique constraint on the uri column
- return $data;
-}
+ $qry = 'UPDATE foreign_user set uri = \'\' WHERE uri = ';
+ $qry .= '\'' . $uri . '\'' . ' AND service = ' . TWITTER_SERVICE;
-function twitter_user_info($screen_name, $password) {
+ $fuser->query($qry);
- $uri = "http://twitter.com/users/show/$screen_name.json";
- $data = get_twitter_data($uri, $screen_name, $password);
+ // Update the user
- if (!$data) {
- return false;
- }
+ $qry = 'UPDATE foreign_user SET nickname = ';
+ $qry .= '\'' . $screen_name . '\'' . ', uri = \'' . $uri . '\' ';
+ $qry .= 'WHERE id = ' . $twitter_id . ' AND service = ' . TWITTER_SERVICE;
- $twit_user = json_decode($data);
+ $fuser->query('COMMIT');
- if (!$twit_user) {
- return false;
- }
+ $fuser->free();
+ unset($fuser);
- return $twit_user;
+ return true;
}
-function update_twitter_user($fuser, $twitter_id, $screen_name) {
+function add_twitter_user($twitter_id, $screen_name)
+{
- $original = clone($fuser);
- $fuser->nickname = $screen_name;
- $fuser->uri = 'http://twitter.com/' . $screen_name;
- $result = $fuser->updateKeys($original);
+ $new_uri = 'http://twitter.com/' . $screen_name;
- if (!$result) {
- common_log_db_error($fuser, 'UPDATE', __FILE__);
- return false;
- }
+ // Clear out any bad old foreign_users with the new user's legit URL
+ // This can happen when users move around or fakester accounts get
+ // repoed, and things like that.
- return true;
-}
+ $luser = new Foreign_user();
+ $luser->uri = $new_uri;
+ $luser->service = TWITTER_SERVICE;
+ $result = $luser->delete();
-function add_twitter_user($twitter_id, $screen_name) {
+ if (empty($result)) {
+ common_log(LOG_WARNING,
+ "Twitter bridge - removed invalid Twitter user squatting on uri: $new_uri");
+ }
- // Otherwise, create a new Twitter user
- $fuser = DB_DataObject::factory('foreign_user');
+ $luser->free();
+ unset($luser);
- $fuser->nickname = $screen_name;
- $fuser->uri = 'http://twitter.com/' . $screen_name;
- $fuser->id = $twitter_id;
- $fuser->service = 1; // Twitter
- $fuser->created = common_sql_now();
- $result = $fuser->insert();
+ // Otherwise, create a new Twitter user
- if (!$result) {
- common_debug("Twitter bridge - failed to add new Twitter user: $twitter_id - $screen_name.");
- common_log_db_error($fuser, 'INSERT', __FILE__);
- return false;
- }
+ $fuser = new Foreign_user();
- common_debug("Twitter bridge - Added new Twitter user: $screen_name ($twitter_id).");
+ $fuser->nickname = $screen_name;
+ $fuser->uri = 'http://twitter.com/' . $screen_name;
+ $fuser->id = $twitter_id;
+ $fuser->service = TWITTER_SERVICE;
+ $fuser->created = common_sql_now();
+ $result = $fuser->insert();
- return true;
+ if (empty($result)) {
+ common_log(LOG_WARNING,
+ "Twitter bridge - failed to add new Twitter user: $twitter_id - $screen_name.");
+ common_log_db_error($fuser, 'INSERT', __FILE__);
+ } else {
+ common_debug("Twitter bridge - Added new Twitter user: $screen_name ($twitter_id).");
+ }
+
+ return $result;
}
// Creates or Updates a Twitter user
-function save_twitter_user($twitter_id, $screen_name) {
+function save_twitter_user($twitter_id, $screen_name)
+{
+
+ // Check to see whether the Twitter user is already in the system,
+ // and update its screen name and uri if so.
+
+ $fuser = Foreign_user::getForeignUser($twitter_id, TWITTER_SERVICE);
+
+ if (!empty($fuser)) {
- // Check to see whether the Twitter user is already in the system,
- // and update its screen name and uri if so.
- $fuser = Foreign_user::getForeignUser($twitter_id, 1);
+ $result = true;
- if ($fuser) {
+ // Only update if Twitter screen name has changed
- // Only update if Twitter screen name has changed
- if ($fuser->nickname != $screen_name) {
+ if ($fuser->nickname != $screen_name) {
+ $result = update_twitter_user($twitter_id, $screen_name);
- common_debug('Twitter bridge - Updated nickname (and URI) for Twitter user ' .
- "$fuser->id to $screen_name, was $fuser->nickname");
+ common_debug('Twitter bridge - Updated nickname (and URI) for Twitter user ' .
+ "$fuser->id to $screen_name, was $fuser->nickname");
+ }
- return update_twitter_user($fuser, $twitter_id, $screen_name);
- }
+ return $result;
- } else {
- return add_twitter_user($twitter_id, $screen_name);
- }
+ } else {
+ return add_twitter_user($twitter_id, $screen_name);
+ }
- return true;
+ $fuser->free();
+ unset($fuser);
+
+ return true;
}
-function retreive_twitter_friends($twitter_id, $screen_name, $password) {
+function is_twitter_bound($notice, $flink) {
+
+ // Check to see if notice should go to Twitter
+ if (!empty($flink) && ($flink->noticesync & FOREIGN_NOTICE_SEND)) {
+
+ // If it's not a Twitter-style reply, or if the user WANTS to send replies.
+ if (!preg_match('/^@[a-zA-Z0-9_]{1,15}\b/u', $notice->content) ||
+ ($flink->noticesync & FOREIGN_NOTICE_SEND_REPLY)) {
+ return true;
+ }
+ }
+
+ return false;
+}
+
+function broadcast_twitter($notice)
+{
+ $flink = Foreign_link::getByUserID($notice->profile_id,
+ TWITTER_SERVICE);
+
+ if (is_twitter_bound($notice, $flink)) {
+ if (TwitterOAuthClient::isPackedToken($flink->credentials)) {
+ return broadcast_oauth($notice, $flink);
+ } else {
+ return broadcast_basicauth($notice, $flink);
+ }
+ }
- $uri = "http://twitter.com/statuses/friends/$twitter_id.json?page=";
- $twitter_user = twitter_user_info($screen_name, $password);
+ return true;
+}
- // Calculate how many pages to get...
- $pages = ceil($twitter_user->friends_count / 100);
+function broadcast_oauth($notice, $flink) {
- if ($pages == 0) {
- common_debug("Twitter bridge - Twitter user $screen_name has no friends! Lame.");
- }
+ $user = $flink->getUser();
+ $statustxt = format_status($notice);
+ $token = TwitterOAuthClient::unpackToken($flink->credentials);
+ $client = new TwitterOAuthClient($token->key, $token->secret);
+ $status = null;
- $friends = array();
+ try {
+ $status = $client->statusesUpdate($statustxt);
+ } catch (OAuthClientCurlException $e) {
+ return process_error($e, $flink);
+ }
- for ($i = 1; $i <= $pages; $i++) {
+ if (empty($status)) {
- $data = get_twitter_data($uri . $i, $screen_name, $password);
+ // This could represent a failure posting,
+ // or the Twitter API might just be behaving flakey.
- if (!$data) {
- return NULL;
- }
+ $errmsg = sprintf('Twitter bridge - No data returned by Twitter API when ' .
+ 'trying to send update for %1$s (user id %2$s).',
+ $user->nickname, $user->id);
+ common_log(LOG_WARNING, $errmsg);
- $more_friends = json_decode($data);
+ return false;
+ }
- if (!$more_friends) {
- return NULL;
- }
+ // Notice crossed the great divide
- $friends = array_merge($friends, $more_friends);
- }
+ $msg = sprintf('Twitter bridge - posted notice %s to Twitter using OAuth.',
+ $notice->id);
+ common_log(LOG_INFO, $msg);
- return $friends;
+ return true;
}
-function save_twitter_friends($user, $twitter_id, $screen_name, $password) {
+function broadcast_basicauth($notice, $flink)
+{
+ $user = $flink->getUser();
+
+ $statustxt = format_status($notice);
- $friends = retreive_twitter_friends($twitter_id, $screen_name, $password);
+ $client = new TwitterBasicAuthClient($flink);
+ $status = null;
- if (is_null($friends)) {
- common_debug("Twitter bridge - Couldn't get friends data from Twitter.");
- return false;
- }
+ try {
+ $status = $client->statusesUpdate($statustxt);
+ } catch (BasicAuthCurlException $e) {
+ return process_error($e, $flink);
+ }
- foreach ($friends as $friend) {
+ if (empty($status)) {
- $friend_name = $friend->screen_name;
- $friend_id = $friend->id;
+ $errmsg = sprintf('Twitter bridge - No data returned by Twitter API when ' .
+ 'trying to send update for %1$s (user id %2$s).',
+ $user->nickname, $user->id);
+ common_log(LOG_WARNING, $errmsg);
- // Update or create the Foreign_user record
- if (!save_twitter_user($friend_id, $friend_name)) {
- return false;
- }
+ return false;
+ }
- // Check to see if there's a related local user
- $flink = Foreign_link::getByForeignID($friend_id, 1);
+ $msg = sprintf('Twitter bridge - posted notice %s to Twitter using basic auth.',
+ $notice->id);
+ common_log(LOG_INFO, $msg);
- if ($flink) {
+ return true;
+}
- // Get associated user and subscribe her
- $friend_user = User::staticGet('id', $flink->user_id);
- subs_subscribe_to($user, $friend_user);
- common_debug("Twitter bridge - subscribed $friend_user->nickname to $user->nickname.");
- }
- }
+function process_error($e, $flink)
+{
+ $user = $flink->getUser();
+ $errmsg = $e->getMessage();
+ $delivered = false;
+
+ switch($errmsg) {
+ case 'The requested URL returned error: 401':
+ $logmsg = sprintf('Twiter bridge - User %1$s (user id: %2$s) has an invalid ' .
+ 'Twitter screen_name/password combo or an invalid acesss token.',
+ $user->nickname, $user->id);
+ $delivered = true;
+ remove_twitter_link($flink);
+ break;
+ case 'The requested URL returned error: 403':
+ $logmsg = sprintf('Twitter bridge - User %1$s (user id: %2$s) has exceeded ' .
+ 'his/her Twitter request limit.',
+ $user->nickname, $user->id);
+ break;
+ default:
+ $logmsg = sprintf('Twitter bridge - cURL error trying to send notice to Twitter ' .
+ 'for user %1$s (user id: %2$s) - ' .
+ 'code: %3$s message: %4$s.',
+ $user->nickname, $user->id,
+ $e->getCode(), $e->getMessage());
+ break;
+ }
+
+ common_log(LOG_WARNING, $logmsg);
+
+ return $delivered;
+}
- return true;
+function format_status($notice)
+{
+ // XXX: Hack to get around PHP cURL's use of @ being a a meta character
+ return preg_replace('/^@/', ' @', $notice->content);
}
+function remove_twitter_link($flink)
+{
+ $user = $flink->getUser();
+
+ common_log(LOG_INFO, 'Removing Twitter bridge Foreign link for ' .
+ "user $user->nickname (user id: $user->id).");
+
+ $result = $flink->delete();
+
+ if (empty($result)) {
+ common_log(LOG_ERR, 'Could not remove Twitter bridge ' .
+ "Foreign_link for $user->nickname (user id: $user->id)!");
+ common_log_db_error($flink, 'DELETE', __FILE__);
+ }
+
+ // Notify the user that her Twitter bridge is down
+
+ if (isset($user->email)) {
+
+ $result = mail_twitter_bridge_removed($user);
+
+ if (!$result) {
+
+ $msg = 'Unable to send email to notify ' .
+ "$user->nickname (user id: $user->id) " .
+ 'that their Twitter bridge link was ' .
+ 'removed!';
+
+ common_log(LOG_WARNING, $msg);
+ }
+ }
+
+}