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 console output
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';
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 sleep(POLL_INTERVAL);
138 function refreshFlinks() {
140 $flink = new Foreign_link();
141 $flink->service = 1; // Twitter
142 $flink->orderBy('last_noticesync');
144 $cnt = $flink->find();
146 if (defined('SCRIPT_DEBUG')) {
147 common_debug('Updating Twitter friends subscriptions' .
153 while ($flink->fetch()) {
155 if (($flink->noticesync & FOREIGN_NOTICE_RECV) ==
156 FOREIGN_NOTICE_RECV) {
157 $flinks[] = clone($flink);
167 function remove_ps(&$plist, $ps){
168 for ($i = 0; $i < sizeof($plist); $i++) {
169 if ($plist[$i] == $ps) {
171 $plist = array_values($plist);
177 function getTimeline($flink)
181 common_log(LOG_WARNING,
182 "Can't retrieve Foreign_link for foreign ID $fid");
186 $fuser = $flink->getForeignUser();
189 common_log(LOG_WARNING, "Unmatched user for ID " .
194 if (defined('SCRIPT_DEBUG')) {
195 common_debug('Trying to get timeline for Twitter user ' .
196 "$fuser->nickname ($flink->foreign_id).");
199 // XXX: Biggest remaining issue - How do we know at which status
200 // to start importing? How many statuses? Right now I'm going
201 // with the default last 20.
203 $url = 'http://twitter.com/statuses/friends_timeline.json';
205 $timeline_json = get_twitter_data($url, $fuser->nickname,
206 $flink->credentials);
208 $timeline = json_decode($timeline_json);
210 if (empty($timeline)) {
211 common_log(LOG_WARNING, "Empty timeline.");
215 foreach ($timeline as $status) {
217 // Hacktastic: filter out stuff coming from this Laconica
218 $source = mb_strtolower(common_config('integration', 'source'));
220 if (preg_match("/$source/", mb_strtolower($status->source))) {
221 if (defined('SCRIPT_DEBUG')) {
222 common_debug('Skipping import of status ' . $status->id .
223 ' with source ' . $source);
228 $this->saveStatus($status, $flink);
231 // Okay, record the time we synced with Twitter for posterity
232 $flink->last_noticesync = common_sql_now();
236 function saveStatus($status, $flink)
238 $id = $this->ensureProfile($status->user);
239 $profile = Profile::staticGet($id);
243 'Problem saving notice. No associated Profile.');
247 $uri = 'http://twitter.com/' . $status->user->screen_name .
248 '/status/' . $status->id;
250 $notice = Notice::staticGet('uri', $uri);
252 // check to see if we've already imported the status
255 $notice = new Notice();
256 $notice->profile_id = $id;
258 $notice->query('BEGIN');
260 // XXX: figure out reply_to
261 $notice->reply_to = null;
263 // XXX: Should this be common_sql_now() instead of status create date?
265 $notice->created = strftime('%Y-%m-%d %H:%M:%S',
266 strtotime($status->created_at));
267 $notice->content = $status->text;
268 $notice->rendered = common_render_content($status->text, $notice);
269 $notice->source = 'twitter';
270 $notice->is_local = 0;
273 $notice_id = $notice->insert();
276 common_log_db_error($notice, 'INSERT', __FILE__);
277 if (defined('SCRIPT_DEBUG')) {
278 common_debug('Could not save notice!');
282 // XXX: Figure out a better way to link Twitter replies?
283 $notice->saveReplies();
285 // XXX: Do we want to polute our tag cloud with
286 // hashtags from Twitter?
288 $notice->saveGroups();
290 $notice->query('COMMIT');
292 if (defined('SCRIPT_DEBUG')) {
293 common_debug("Saved status $status->id" .
294 " as notice $notice->id.");
298 if (!Notice_inbox::staticGet('notice_id', $notice->id)) {
301 $inbox = new Notice_inbox();
302 $inbox->user_id = $flink->user_id;
303 $inbox->notice_id = $notice->id;
304 $inbox->created = common_sql_now();
310 function ensureProfile($user)
312 // check to see if there's already a profile for this user
313 $profileurl = 'http://twitter.com/' . $user->screen_name;
314 $profile = Profile::staticGet('profileurl', $profileurl);
317 if (defined('SCRIPT_DEBUG')) {
318 common_debug("Profile for $profile->nickname found.");
321 // Check to see if the user's Avatar has changed
322 $this->checkAvatar($user, $profile);
327 if (defined('SCRIPT_DEBUG')) {
328 common_debug('Adding profile and remote profile ' .
329 "for Twitter user: $profileurl");
332 $profile = new Profile();
333 $profile->query("BEGIN");
335 $profile->nickname = $user->screen_name;
336 $profile->fullname = $user->name;
337 $profile->homepage = $user->url;
338 $profile->bio = $user->description;
339 $profile->location = $user->location;
340 $profile->profileurl = $profileurl;
341 $profile->created = common_sql_now();
343 $id = $profile->insert();
346 common_log_db_error($profile, 'INSERT', __FILE__);
347 $profile->query("ROLLBACK");
351 // check for remote profile
352 $remote_pro = Remote_profile::staticGet('uri', $profileurl);
356 $remote_pro = new Remote_profile();
358 $remote_pro->id = $id;
359 $remote_pro->uri = $profileurl;
360 $remote_pro->created = common_sql_now();
362 $rid = $remote_pro->insert();
365 common_log_db_error($profile, 'INSERT', __FILE__);
366 $profile->query("ROLLBACK");
371 $profile->query("COMMIT");
373 $this->saveAvatars($user, $id);
379 function checkAvatar($user, $profile)
383 $path_parts = pathinfo($user->profile_image_url);
384 $newname = 'Twitter_' . $user->id . '_' .
385 $path_parts['basename'];
387 $oldname = $profile->getAvatar(48)->filename;
389 if ($newname != $oldname) {
391 if (defined('SCRIPT_DEBUG')) {
392 common_debug('Avatar for Twitter user ' .
393 "$profile->nickname has changed.");
394 common_debug("old: $oldname new: $newname");
397 $img_root = substr($path_parts['basename'], 0, -11);
398 $ext = $path_parts['extension'];
399 $mediatype = $this->getMediatype($ext);
401 foreach (array('mini', 'normal', 'bigger') as $size) {
402 $url = $path_parts['dirname'] . '/' .
403 $img_root . '_' . $size . ".$ext";
404 $filename = 'Twitter_' . $user->id . '_' .
405 $img_root . "_$size.$ext";
407 if ($this->fetchAvatar($url, $filename)) {
408 $this->updateAvatar($profile->id, $size, $mediatype, $filename);
414 function getMediatype($ext)
418 switch (strtolower($ext)) {
420 $mediatype = 'image/jpg';
423 $mediatype = 'image/gif';
426 $mediatype = 'image/png';
432 function saveAvatars($user, $id)
436 $path_parts = pathinfo($user->profile_image_url);
437 $ext = $path_parts['extension'];
438 $end = strlen('_normal' . $ext);
439 $img_root = substr($path_parts['basename'], 0, -($end+1));
440 $mediatype = $this->getMediatype($ext);
442 foreach (array('mini', 'normal', 'bigger') as $size) {
443 $url = $path_parts['dirname'] . '/' .
444 $img_root . '_' . $size . ".$ext";
445 $filename = 'Twitter_' . $user->id . '_' .
446 $img_root . "_$size.$ext";
448 if ($this->fetchAvatar($url, $filename)) {
449 $this->newAvatar($id, $size, $mediatype, $filename);
451 common_log(LOG_WARNING, "Problem fetching Avatar: $url", __FILE__);
456 function updateAvatar($profile_id, $size, $mediatype, $filename) {
458 if (defined('SCRIPT_DEBUG')) {
459 common_debug("Updating avatar: $size");
462 $profile = Profile::staticGet($profile_id);
465 if (defined('SCRIPT_DEBUG')) {
466 common_debug("Couldn't get profile: $profile_id!");
471 $sizes = array('mini' => 24, 'normal' => 48, 'bigger' => 73);
472 $avatar = $profile->getAvatar($sizes[$size]);
475 if (defined('SCRIPT_DEBUG')) {
476 common_debug("Deleting $size avatar for $profile->nickname.");
478 @unlink(INSTALLDIR . '/avatar/' . $avatar->filename);
482 $this->newAvatar($profile->id, $size, $mediatype, $filename);
485 function newAvatar($profile_id, $size, $mediatype, $filename)
489 $avatar = new Avatar();
490 $avatar->profile_id = $profile_id;
495 $avatar->height = 24;
499 $avatar->height = 48;
503 // Note: Twitter's big avatars are a different size than
504 // Laconica's (Laconica's = 96)
507 $avatar->height = 73;
510 $avatar->original = 0; // we don't have the original
511 $avatar->mediatype = $mediatype;
512 $avatar->filename = $filename;
513 $avatar->url = Avatar::url($filename);
515 if (defined('SCRIPT_DEBUG')) {
516 common_debug("new filename: $avatar->url");
519 $avatar->created = common_sql_now();
521 $id = $avatar->insert();
524 common_log_db_error($avatar, 'INSERT', __FILE__);
528 if (defined('SCRIPT_DEBUG')) {
529 common_debug("Saved new $size avatar for $profile_id.");
535 function fetchAvatar($url, $filename)
537 $avatar_dir = INSTALLDIR . '/avatar/';
539 $avatarfile = $avatar_dir . $filename;
541 $out = fopen($avatarfile, 'wb');
543 common_log(LOG_WARNING, "Couldn't open file $filename", __FILE__);
547 if (defined('SCRIPT_DEBUG')) {
548 common_debug("Fetching avatar: $url");
552 curl_setopt($ch, CURLOPT_URL, $url);
553 curl_setopt($ch, CURLOPT_FILE, $out);
554 curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);
555 curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
556 curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 0);
557 $result = curl_exec($ch);
566 ini_set("max_execution_time", "0");
567 ini_set("max_input_time", "0");
569 mb_internal_encoding('UTF-8');
572 $fetcher = new TwitterStatusFetcher();