3 * StatusNet - the distributed open-source microblogging tool
4 * Copyright (C) 2008-2010 StatusNet, Inc.
6 * This program is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU Affero General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU Affero General Public License for more details.
16 * You should have received a copy of the GNU Affero General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 if (!defined('STATUSNET') && !defined('LACONICA')) {
24 define('TWITTER_SERVICE', 1); // Twitter is foreign_service ID 1
26 require_once INSTALLDIR . '/plugins/TwitterBridge/twitterbasicauthclient.php';
27 require_once INSTALLDIR . '/plugins/TwitterBridge/twitteroauthclient.php';
29 function add_twitter_user($twitter_id, $screen_name)
31 common_debug("Add Twitter user");
33 $new_uri = 'http://twitter.com/' . $screen_name;
35 // Clear out any bad old foreign_users with the new user's legit URL
36 // This can happen when users move around or fakester accounts get
37 // repoed, and things like that.
39 $luser = new Foreign_user();
40 $luser->uri = $new_uri;
41 $luser->service = TWITTER_SERVICE;
42 $result = $luser->delete();
44 if ($result != false) {
45 common_log(LOG_WARNING,
46 "Twitter bridge - removed invalid Twitter user squatting on uri: $new_uri");
52 // Otherwise, create a new Twitter user
54 $fuser = new Foreign_user();
56 $fuser->nickname = $screen_name;
57 $fuser->uri = 'http://twitter.com/' . $screen_name;
58 $fuser->id = $twitter_id;
59 $fuser->service = TWITTER_SERVICE;
60 $fuser->created = common_sql_now();
61 $result = $fuser->insert();
64 common_log(LOG_WARNING,
65 "Twitter bridge - failed to add new Twitter user: $twitter_id - $screen_name.");
66 common_log_db_error($fuser, 'INSERT', __FILE__);
68 common_debug("Twitter bridge - Added new Twitter user: $screen_name ($twitter_id).");
74 // Creates or Updates a Twitter user
75 function save_twitter_user($twitter_id, $screen_name)
77 // Check to see whether the Twitter user is already in the system,
78 // and update its screen name and uri if so.
80 $fuser = Foreign_user::getForeignUser($twitter_id, TWITTER_SERVICE);
86 // Delete old record if Twitter user changed screen name
88 if ($fuser->nickname != $screen_name) {
89 $oldname = $fuser->nickname;
91 common_log(LOG_INFO, sprintf('Twitter bridge - Updated nickname (and URI) ' .
92 'for Twitter user %1$d - %2$s, was %3$s.',
99 return add_twitter_user($twitter_id, $screen_name);
102 function is_twitter_bound($notice, $flink) {
104 // Check to see if notice should go to Twitter
105 if (!empty($flink) && ($flink->noticesync & FOREIGN_NOTICE_SEND)) {
107 // If it's not a Twitter-style reply, or if the user WANTS to send replies.
108 if (!preg_match('/^@[a-zA-Z0-9_]{1,15}\b/u', $notice->content) ||
109 ($flink->noticesync & FOREIGN_NOTICE_SEND_REPLY)) {
117 function broadcast_twitter($notice)
119 $flink = Foreign_link::getByUserID($notice->profile_id,
122 if (is_twitter_bound($notice, $flink)) {
123 if (TwitterOAuthClient::isPackedToken($flink->credentials)) {
124 return broadcast_oauth($notice, $flink);
126 return broadcast_basicauth($notice, $flink);
133 function broadcast_oauth($notice, $flink) {
134 $user = $flink->getUser();
135 $statustxt = format_status($notice);
136 $token = TwitterOAuthClient::unpackToken($flink->credentials);
137 $client = new TwitterOAuthClient($token->key, $token->secret);
141 $status = $client->statusesUpdate($statustxt);
142 } catch (OAuthClientException $e) {
143 return process_error($e, $flink, $notice);
146 if (empty($status)) {
148 // This could represent a failure posting,
149 // or the Twitter API might just be behaving flakey.
151 $errmsg = sprintf('Twitter bridge - No data returned by Twitter API when ' .
152 'trying to post notice %d for User %s (user id %d).',
157 common_log(LOG_WARNING, $errmsg);
162 // Notice crossed the great divide
164 $msg = sprintf('Twitter bridge - posted notice %d to Twitter using ' .
165 'OAuth for User %s (user id %d).',
170 common_log(LOG_INFO, $msg);
175 function broadcast_basicauth($notice, $flink)
177 $user = $flink->getUser();
179 $statustxt = format_status($notice);
181 $client = new TwitterBasicAuthClient($flink);
185 $status = $client->statusesUpdate($statustxt);
186 } catch (BasicAuthException $e) {
187 return process_error($e, $flink, $notice);
190 if (empty($status)) {
192 $errmsg = sprintf('Twitter bridge - No data returned by Twitter API when ' .
193 'trying to post notice %d for %s (user id %d).',
198 common_log(LOG_WARNING, $errmsg);
200 $errmsg = sprintf('No data returned by Twitter API when ' .
201 'trying to post notice %d for %s (user id %d).',
205 common_log(LOG_WARNING, $errmsg);
209 $msg = sprintf('Twitter bridge - posted notice %d to Twitter using ' .
210 'HTTP basic auth for User %s (user id %d).',
215 common_log(LOG_INFO, $msg);
220 function process_error($e, $flink, $notice)
222 $user = $flink->getUser();
223 $code = $e->getCode();
225 $logmsg = sprintf('Twitter bridge - %d posting notice %d for ' .
226 'User %s (user id: %d): %s.',
233 common_log(LOG_WARNING, $logmsg);
237 // Probably a revoked or otherwise bad access token - nuke!
238 remove_twitter_link($flink);
242 // User has exceeder her rate limit -- toss the notice
247 // For every other case, it's probably some flakiness so try
248 // sending the notice again later (requeue).
255 function format_status($notice)
257 // XXX: Hack to get around PHP cURL's use of @ being a a meta character
258 $statustxt = preg_replace('/^@/', ' @', $notice->content);
260 // Convert !groups to #hashes
262 // XXX: Make this an optional setting?
264 $statustxt = preg_replace('/(^|\s)!([A-Za-z0-9]{1,64})/', "\\1#\\2", $statustxt);
266 if (mb_strlen($statustxt) > 140) {
267 $noticeUrl = common_shorten_url($notice->uri);
268 $urlLen = mb_strlen($noticeUrl);
269 $statustxt = mb_substr($statustxt, 0, 140 - ($urlLen + 3)) . ' … ' . $noticeUrl;
275 function remove_twitter_link($flink)
277 $user = $flink->getUser();
279 common_log(LOG_INFO, 'Removing Twitter bridge Foreign link for ' .
280 "user $user->nickname (user id: $user->id).");
282 $result = $flink->delete();
284 if (empty($result)) {
285 common_log(LOG_ERR, 'Could not remove Twitter bridge ' .
286 "Foreign_link for $user->nickname (user id: $user->id)!");
287 common_log_db_error($flink, 'DELETE', __FILE__);
290 // Notify the user that her Twitter bridge is down
292 if (isset($user->email)) {
294 $result = mail_twitter_bridge_removed($user);
298 $msg = 'Unable to send email to notify ' .
299 "$user->nickname (user id: $user->id) " .
300 'that their Twitter bridge link was ' .
303 common_log(LOG_WARNING, $msg);
310 * Send a mail message to notify a user that her Twitter bridge link
311 * has stopped working, and therefore has been removed. This can
312 * happen when the user changes her Twitter password, or otherwise
315 * @param User $user user whose Twitter bridge link has been removed
317 * @return boolean success flag
320 function mail_twitter_bridge_removed($user)
322 common_init_locale($user->language);
324 $profile = $user->getProfile();
326 $subject = sprintf(_m('Your Twitter bridge has been disabled.'));
328 $site_name = common_config('site', 'name');
330 $body = sprintf(_m('Hi, %1$s. We\'re sorry to inform you that your ' .
331 'link to Twitter has been disabled. We no longer seem to have ' .
332 'permission to update your Twitter status. (Did you revoke ' .
333 '%3$s\'s access?)' . "\n\n" .
334 'You can re-enable your Twitter bridge by visiting your ' .
335 "Twitter settings page:\n\n\t%2\$s\n\n" .
336 "Regards,\n%3\$s\n"),
337 $profile->getBestName(),
338 common_local_url('twittersettings'),
339 common_config('site', 'name'));
341 common_init_locale();
342 return mail_to_user($user, $subject, $body);