4 * Laconica - a distributed open-source microblogging tool
5 * Copyright (C) 2008, Controlez-Vous, Inc.
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU Affero General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU Affero General Public License for more details.
17 * You should have received a copy of the GNU Affero General Public License
18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
21 // Abort if called from a web server
22 if (isset($_SERVER) && array_key_exists('REQUEST_METHOD', $_SERVER)) {
23 print "This script must be run from the command line\n";
27 define('INSTALLDIR', realpath(dirname(__FILE__) . '/..'));
28 define('LACONICA', true);
30 // Tune number of processes and how often to poll Twitter
31 // XXX: Should these things be in config.php?
32 define('MAXCHILDREN', 2);
33 define('POLL_INTERVAL', 60); // in seconds
35 // Uncomment this to get useful logging
36 define('SCRIPT_DEBUG', true);
38 require_once(INSTALLDIR . '/lib/common.php');
39 require_once(INSTALLDIR . '/lib/daemon.php');
41 class TwitterStatusFetcher extends Daemon
44 private $children = array();
48 return ('twitterstatusfetcher.generic');
55 $flinks = $this->refreshFlinks();
57 foreach ($flinks as $f){
59 // We have to disconnect from the DB before forking so
60 // each sub-process will open its own connection and
61 // avoid stomping on the others
63 $conn = &$f->getDatabaseConnection();
69 die ("Couldn't fork!");
75 if (defined('SCRIPT_DEBUG')) {
76 common_debug("Parent: forked new status fetcher process " . $pid);
79 $this->children[] = $pid;
84 $this->getTimeline($f);
88 // Remove child from ps list as it finishes
89 while(($c = pcntl_wait($status, WNOHANG OR WUNTRACED)) > 0) {
91 if (defined('SCRIPT_DEBUG')) {
92 common_debug("Child $c finished.");
95 $this->remove_ps($this->children, $c);
98 // Wait! We have too many damn kids.
99 if (sizeof($this->children) > MAXCHILDREN) {
101 if (defined('SCRIPT_DEBUG')) {
102 common_debug('Too many children. Waiting...');
105 if (($c = pcntl_wait($status, WUNTRACED)) > 0){
107 if (defined('SCRIPT_DEBUG')) {
108 common_debug("Finished waiting for $c");
111 $this->remove_ps($this->children, $c);
116 // Remove all children from the process list before restarting
117 while(($c = pcntl_wait($status, WUNTRACED)) > 0) {
119 if (defined('SCRIPT_DEBUG')) {
120 common_debug("Child $c finished.");
123 $this->remove_ps($this->children, $c);
126 // Rest for a bit before we fetch more statuses
128 if (defined('SCRIPT_DEBUG')) {
129 common_debug('Waiting ' . POLL_INTERVAL .
130 ' secs before hitting Twitter again.');
133 if (POLL_INTERVAL > 0) {
134 sleep(POLL_INTERVAL);
140 function refreshFlinks() {
142 $flink = new Foreign_link();
143 $flink->service = 1; // Twitter
144 $flink->orderBy('last_noticesync');
146 $cnt = $flink->find();
148 if (defined('SCRIPT_DEBUG')) {
149 common_debug('Updating Twitter friends subscriptions' .
155 while ($flink->fetch()) {
157 if (($flink->noticesync & FOREIGN_NOTICE_RECV) ==
158 FOREIGN_NOTICE_RECV) {
159 $flinks[] = clone($flink);
169 function remove_ps(&$plist, $ps){
170 for ($i = 0; $i < sizeof($plist); $i++) {
171 if ($plist[$i] == $ps) {
173 $plist = array_values($plist);
179 function getTimeline($flink)
183 common_log(LOG_WARNING,
184 "Can't retrieve Foreign_link for foreign ID $fid");
188 $fuser = $flink->getForeignUser();
191 common_log(LOG_WARNING, "Unmatched user for ID " .
196 if (defined('SCRIPT_DEBUG')) {
197 common_debug('Trying to get timeline for Twitter user ' .
198 "$fuser->nickname ($flink->foreign_id).");
201 // XXX: Biggest remaining issue - How do we know at which status
202 // to start importing? How many statuses? Right now I'm going
203 // with the default last 20.
205 $url = 'http://twitter.com/statuses/friends_timeline.json';
207 $timeline_json = get_twitter_data($url, $fuser->nickname,
208 $flink->credentials);
210 $timeline = json_decode($timeline_json);
212 if (empty($timeline)) {
213 common_log(LOG_WARNING, "Empty timeline.");
217 // Reverse to preserve order
218 foreach (array_reverse($timeline) as $status) {
220 // Hacktastic: filter out stuff coming from this Laconica
221 $source = mb_strtolower(common_config('integration', 'source'));
223 if (preg_match("/$source/", mb_strtolower($status->source))) {
224 if (defined('SCRIPT_DEBUG')) {
225 common_debug('Skipping import of status ' . $status->id .
226 ' with source ' . $source);
231 $this->saveStatus($status, $flink);
234 // Okay, record the time we synced with Twitter for posterity
235 $flink->last_noticesync = common_sql_now();
239 function saveStatus($status, $flink)
241 $id = $this->ensureProfile($status->user);
242 $profile = Profile::staticGet($id);
246 'Problem saving notice. No associated Profile.');
250 $uri = 'http://twitter.com/' . $status->user->screen_name .
251 '/status/' . $status->id;
253 $notice = Notice::staticGet('uri', $uri);
255 // check to see if we've already imported the status
258 $created = strftime('%Y-%m-%d %H:%M:%S',
259 strtotime($status->created_at));;
261 $notice = Notice::saveNew($id, $status->text, 'twitter',
262 -2, null, $uri, $created);
264 if (defined('SCRIPT_DEBUG')) {
265 common_debug("Saved status $status->id" .
266 " as notice $notice->id.");
270 if (!Notice_inbox::pkeyGet(array('notice_id' => $notice->id,
271 'user_id' => $flink->user_id))) {
273 $inbox = new Notice_inbox();
274 $inbox->user_id = $flink->user_id;
275 $inbox->notice_id = $notice->id;
276 $inbox->created = $notice->created;
282 function ensureProfile($user)
284 // check to see if there's already a profile for this user
285 $profileurl = 'http://twitter.com/' . $user->screen_name;
286 $profile = Profile::staticGet('profileurl', $profileurl);
289 if (defined('SCRIPT_DEBUG')) {
290 common_debug("Profile for $profile->nickname found.");
293 // Check to see if the user's Avatar has changed
294 $this->checkAvatar($user, $profile);
299 if (defined('SCRIPT_DEBUG')) {
300 common_debug('Adding profile and remote profile ' .
301 "for Twitter user: $profileurl");
304 $profile = new Profile();
305 $profile->query("BEGIN");
307 $profile->nickname = $user->screen_name;
308 $profile->fullname = $user->name;
309 $profile->homepage = $user->url;
310 $profile->bio = $user->description;
311 $profile->location = $user->location;
312 $profile->profileurl = $profileurl;
313 $profile->created = common_sql_now();
315 $id = $profile->insert();
318 common_log_db_error($profile, 'INSERT', __FILE__);
319 $profile->query("ROLLBACK");
323 // check for remote profile
324 $remote_pro = Remote_profile::staticGet('uri', $profileurl);
328 $remote_pro = new Remote_profile();
330 $remote_pro->id = $id;
331 $remote_pro->uri = $profileurl;
332 $remote_pro->created = common_sql_now();
334 $rid = $remote_pro->insert();
337 common_log_db_error($profile, 'INSERT', __FILE__);
338 $profile->query("ROLLBACK");
343 $profile->query("COMMIT");
345 $this->saveAvatars($user, $id);
351 function checkAvatar($user, $profile)
355 $path_parts = pathinfo($user->profile_image_url);
356 $newname = 'Twitter_' . $user->id . '_' .
357 $path_parts['basename'];
359 $oldname = $profile->getAvatar(48)->filename;
361 if ($newname != $oldname) {
363 if (defined('SCRIPT_DEBUG')) {
364 common_debug('Avatar for Twitter user ' .
365 "$profile->nickname has changed.");
366 common_debug("old: $oldname new: $newname");
369 $img_root = substr($path_parts['basename'], 0, -11);
370 $ext = $path_parts['extension'];
371 $mediatype = $this->getMediatype($ext);
373 foreach (array('mini', 'normal', 'bigger') as $size) {
374 $url = $path_parts['dirname'] . '/' .
375 $img_root . '_' . $size . ".$ext";
376 $filename = 'Twitter_' . $user->id . '_' .
377 $img_root . "_$size.$ext";
379 if ($this->fetchAvatar($url, $filename)) {
380 $this->updateAvatar($profile->id, $size, $mediatype, $filename);
386 function getMediatype($ext)
390 switch (strtolower($ext)) {
392 $mediatype = 'image/jpg';
395 $mediatype = 'image/gif';
398 $mediatype = 'image/png';
404 function saveAvatars($user, $id)
408 $path_parts = pathinfo($user->profile_image_url);
409 $ext = $path_parts['extension'];
410 $end = strlen('_normal' . $ext);
411 $img_root = substr($path_parts['basename'], 0, -($end+1));
412 $mediatype = $this->getMediatype($ext);
414 foreach (array('mini', 'normal', 'bigger') as $size) {
415 $url = $path_parts['dirname'] . '/' .
416 $img_root . '_' . $size . ".$ext";
417 $filename = 'Twitter_' . $user->id . '_' .
418 $img_root . "_$size.$ext";
420 if ($this->fetchAvatar($url, $filename)) {
421 $this->newAvatar($id, $size, $mediatype, $filename);
423 common_log(LOG_WARNING, "Problem fetching Avatar: $url", __FILE__);
428 function updateAvatar($profile_id, $size, $mediatype, $filename) {
430 if (defined('SCRIPT_DEBUG')) {
431 common_debug("Updating avatar: $size");
434 $profile = Profile::staticGet($profile_id);
437 if (defined('SCRIPT_DEBUG')) {
438 common_debug("Couldn't get profile: $profile_id!");
443 $sizes = array('mini' => 24, 'normal' => 48, 'bigger' => 73);
444 $avatar = $profile->getAvatar($sizes[$size]);
447 if (defined('SCRIPT_DEBUG')) {
448 common_debug("Deleting $size avatar for $profile->nickname.");
450 @unlink(INSTALLDIR . '/avatar/' . $avatar->filename);
454 $this->newAvatar($profile->id, $size, $mediatype, $filename);
457 function newAvatar($profile_id, $size, $mediatype, $filename)
461 $avatar = new Avatar();
462 $avatar->profile_id = $profile_id;
467 $avatar->height = 24;
471 $avatar->height = 48;
475 // Note: Twitter's big avatars are a different size than
476 // Laconica's (Laconica's = 96)
479 $avatar->height = 73;
482 $avatar->original = 0; // we don't have the original
483 $avatar->mediatype = $mediatype;
484 $avatar->filename = $filename;
485 $avatar->url = Avatar::url($filename);
487 if (defined('SCRIPT_DEBUG')) {
488 common_debug("new filename: $avatar->url");
491 $avatar->created = common_sql_now();
493 $id = $avatar->insert();
496 common_log_db_error($avatar, 'INSERT', __FILE__);
500 if (defined('SCRIPT_DEBUG')) {
501 common_debug("Saved new $size avatar for $profile_id.");
507 function fetchAvatar($url, $filename)
509 $avatar_dir = INSTALLDIR . '/avatar/';
511 $avatarfile = $avatar_dir . $filename;
513 $out = fopen($avatarfile, 'wb');
515 common_log(LOG_WARNING, "Couldn't open file $filename", __FILE__);
519 if (defined('SCRIPT_DEBUG')) {
520 common_debug("Fetching avatar: $url");
524 curl_setopt($ch, CURLOPT_URL, $url);
525 curl_setopt($ch, CURLOPT_FILE, $out);
526 curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);
527 curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
528 curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 0);
529 $result = curl_exec($ch);
538 ini_set("max_execution_time", "0");
539 ini_set("max_input_time", "0");
541 mb_internal_encoding('UTF-8');
544 $fetcher = new TwitterStatusFetcher();