forked from GNUsocial/gnu-social
258 lines
7.6 KiB
PHP
258 lines
7.6 KiB
PHP
<?php
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/*
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* StatusNet - a distributed open-source microblogging tool
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* Copyright (C) 2008, 2009, StatusNet, Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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if (!defined('LACONICA')) {
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exit(1);
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}
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define('TWITTER_SERVICE', 1); // Twitter is foreign_service ID 1
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function update_twitter_user($twitter_id, $screen_name)
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{
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$uri = 'http://twitter.com/' . $screen_name;
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$fuser = new Foreign_user();
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$fuser->query('BEGIN');
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// Dropping down to SQL because regular DB_DataObject udpate stuff doesn't seem
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// to work so good with tables that have multiple column primary keys
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// Any time we update the uri for a forein user we have to make sure there
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// are no dupe entries first -- unique constraint on the uri column
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$qry = 'UPDATE foreign_user set uri = \'\' WHERE uri = ';
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$qry .= '\'' . $uri . '\'' . ' AND service = ' . TWITTER_SERVICE;
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$fuser->query($qry);
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// Update the user
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$qry = 'UPDATE foreign_user SET nickname = ';
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$qry .= '\'' . $screen_name . '\'' . ', uri = \'' . $uri . '\' ';
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$qry .= 'WHERE id = ' . $twitter_id . ' AND service = ' . TWITTER_SERVICE;
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$fuser->query('COMMIT');
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$fuser->free();
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unset($fuser);
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return true;
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}
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function add_twitter_user($twitter_id, $screen_name)
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{
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$new_uri = 'http://twitter.com/' . $screen_name;
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// Clear out any bad old foreign_users with the new user's legit URL
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// This can happen when users move around or fakester accounts get
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// repoed, and things like that.
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$luser = new Foreign_user();
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$luser->uri = $new_uri;
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$luser->service = TWITTER_SERVICE;
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$result = $luser->delete();
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if (empty($result)) {
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common_log(LOG_WARNING,
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"Twitter bridge - removed invalid Twitter user squatting on uri: $new_uri");
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}
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$luser->free();
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unset($luser);
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// Otherwise, create a new Twitter user
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$fuser = new Foreign_user();
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$fuser->nickname = $screen_name;
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$fuser->uri = 'http://twitter.com/' . $screen_name;
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$fuser->id = $twitter_id;
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$fuser->service = TWITTER_SERVICE;
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$fuser->created = common_sql_now();
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$result = $fuser->insert();
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if (empty($result)) {
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common_log(LOG_WARNING,
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"Twitter bridge - failed to add new Twitter user: $twitter_id - $screen_name.");
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common_log_db_error($fuser, 'INSERT', __FILE__);
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} else {
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common_debug("Twitter bridge - Added new Twitter user: $screen_name ($twitter_id).");
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}
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return $result;
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}
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// Creates or Updates a Twitter user
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function save_twitter_user($twitter_id, $screen_name)
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{
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// Check to see whether the Twitter user is already in the system,
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// and update its screen name and uri if so.
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$fuser = Foreign_user::getForeignUser($twitter_id, TWITTER_SERVICE);
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if (!empty($fuser)) {
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$result = true;
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// Only update if Twitter screen name has changed
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if ($fuser->nickname != $screen_name) {
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$result = update_twitter_user($twitter_id, $screen_name);
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common_debug('Twitter bridge - Updated nickname (and URI) for Twitter user ' .
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"$fuser->id to $screen_name, was $fuser->nickname");
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}
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return $result;
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} else {
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return add_twitter_user($twitter_id, $screen_name);
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}
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$fuser->free();
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unset($fuser);
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return true;
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}
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function is_twitter_bound($notice, $flink) {
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// Check to see if notice should go to Twitter
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if (!empty($flink) && ($flink->noticesync & FOREIGN_NOTICE_SEND)) {
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// If it's not a Twitter-style reply, or if the user WANTS to send replies.
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if (!preg_match('/^@[a-zA-Z0-9_]{1,15}\b/u', $notice->content) ||
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($flink->noticesync & FOREIGN_NOTICE_SEND_REPLY)) {
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return true;
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}
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}
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return false;
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}
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function broadcast_twitter($notice)
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{
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$flink = Foreign_link::getByUserID($notice->profile_id,
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TWITTER_SERVICE);
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if (is_twitter_bound($notice, $flink)) {
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$user = $flink->getUser();
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// XXX: Hack to get around PHP cURL's use of @ being a a meta character
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$statustxt = preg_replace('/^@/', ' @', $notice->content);
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$token = TwitterOAuthClient::unpackToken($flink->credentials);
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$client = new TwitterOAuthClient($token->key, $token->secret);
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$status = null;
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try {
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$status = $client->statusesUpdate($statustxt);
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} catch (OAuthClientCurlException $e) {
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if ($e->getMessage() == 'The requested URL returned error: 401') {
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$errmsg = sprintf('User %1$s (user id: %2$s) has an invalid ' .
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'Twitter OAuth access token.',
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$user->nickname, $user->id);
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common_log(LOG_WARNING, $errmsg);
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// Bad auth token! We need to delete the foreign_link
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// to Twitter and inform the user.
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remove_twitter_link($flink);
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return true;
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} else {
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// Some other error happened, so we should probably
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// try to send again later.
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$errmsg = sprintf('cURL error trying to send notice to Twitter ' .
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'for user %1$s (user id: %2$s) - ' .
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'code: %3$s message: $4$s.',
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$user->nickname, $user->id,
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$e->getCode(), $e->getMessage());
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common_log(LOG_WARNING, $errmsg);
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return false;
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}
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}
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if (empty($status)) {
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// This could represent a failure posting,
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// or the Twitter API might just be behaving flakey.
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$errmsg = sprint('No data returned by Twitter API when ' .
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'trying to send update for %1$s (user id %2$s).',
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$user->nickname, $user->id);
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common_log(LOG_WARNING, $errmsg);
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return false;
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}
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// Notice crossed the great divide
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$msg = sprintf('Twitter bridge posted notice %s to Twitter.',
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$notice->id);
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common_log(LOG_INFO, $msg);
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}
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return true;
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}
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function remove_twitter_link($flink)
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{
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$user = $flink->getUser();
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common_log(LOG_INFO, 'Removing Twitter bridge Foreign link for ' .
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"user $user->nickname (user id: $user->id).");
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$result = $flink->delete();
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if (empty($result)) {
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common_log(LOG_ERR, 'Could not remove Twitter bridge ' .
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"Foreign_link for $user->nickname (user id: $user->id)!");
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common_log_db_error($flink, 'DELETE', __FILE__);
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}
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// Notify the user that her Twitter bridge is down
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if (isset($user->email)) {
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$result = mail_twitter_bridge_removed($user);
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if (!$result) {
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$msg = 'Unable to send email to notify ' .
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"$user->nickname (user id: $user->id) " .
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'that their Twitter bridge link was ' .
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'removed!';
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common_log(LOG_WARNING, $msg);
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}
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}
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}
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