3 * Laconica - a distributed open-source microblogging tool
4 * Copyright (C) 2008, Controlez-Vous, 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('LACONICA')) { exit(1); }
23 * Table Definition for notice
25 require_once INSTALLDIR.'/classes/Memcached_DataObject.php';
27 /* We keep the first three 20-notice pages, plus one for pagination check,
28 * in the memcached cache. */
30 define('NOTICE_CACHE_WINDOW', 61);
32 class Notice extends Memcached_DataObject
35 /* the code below is auto generated do not remove the above tag */
37 public $__table = 'notice'; // table name
38 public $id; // int(4) primary_key not_null
39 public $profile_id; // int(4) not_null
40 public $uri; // varchar(255) unique_key
41 public $content; // varchar(140)
42 public $rendered; // text()
43 public $url; // varchar(255)
44 public $created; // datetime() not_null
45 public $modified; // timestamp() not_null default_CURRENT_TIMESTAMP
46 public $reply_to; // int(4)
47 public $is_local; // tinyint(1)
48 public $source; // varchar(32)
49 public $conversation; // int(4)
52 function staticGet($k,$v=NULL) {
53 return Memcached_DataObject::staticGet('Notice',$k,$v);
56 /* the code above is auto generated do not remove the tag below */
61 return Profile::staticGet('id', $this->profile_id);
66 $this->blowCaches(true);
67 $this->blowFavesCache(true);
68 $this->blowSubsCache(true);
70 $this->query('BEGIN');
71 //Null any notices that are replies to this notice
72 $this->query(sprintf("UPDATE notice set reply_to = null WHERE reply_to = %d", $this->id));
73 $related = array('Reply',
78 if (common_config('inboxes', 'enabled')) {
79 $related[] = 'Notice_inbox';
81 foreach ($related as $cls) {
83 $inst->notice_id = $this->id;
86 $result = parent::delete();
87 $this->query('COMMIT');
92 /* extract all #hastags */
93 $count = preg_match_all('/(?:^|\s)#([A-Za-z0-9_\-\.]{1,64})/', strtolower($this->content), $match);
98 /* Add them to the database */
99 foreach(array_unique($match[1]) as $hashtag) {
100 /* elide characters we don't want in the tag */
101 $this->saveTag($hashtag);
106 function saveTag($hashtag)
108 $hashtag = common_canonical_tag($hashtag);
110 $tag = new Notice_tag();
111 $tag->notice_id = $this->id;
112 $tag->tag = $hashtag;
113 $tag->created = $this->created;
114 $id = $tag->insert();
117 throw new ServerException(sprintf(_('DB error inserting hashtag: %s'),
118 $last_error->message));
123 static function saveNew($profile_id, $content, $source=null, $is_local=1, $reply_to=null, $uri=null) {
125 $profile = Profile::staticGet($profile_id);
128 common_log(LOG_ERR, 'Problem saving notice. Unknown user.');
129 return _('Problem saving notice. Unknown user.');
132 if (common_config('throttle', 'enabled') && !Notice::checkEditThrottle($profile_id)) {
133 common_log(LOG_WARNING, 'Excessive posting by profile #' . $profile_id . '; throttled.');
134 return _('Too many notices too fast; take a breather and post again in a few minutes.');
137 if (common_config('site', 'dupelimit') > 0 && !Notice::checkDupes($profile_id, $content)) {
138 common_log(LOG_WARNING, 'Dupe posting by profile #' . $profile_id . '; throttled.');
139 return _('Too many duplicate messages too quickly; take a breather and post again in a few minutes.');
142 $banned = common_config('profile', 'banned');
144 if ( in_array($profile_id, $banned) || in_array($profile->nickname, $banned)) {
145 common_log(LOG_WARNING, "Attempted post from banned user: $profile->nickname (user id = $profile_id).");
146 return _('You are banned from posting notices on this site.');
149 $notice = new Notice();
150 $notice->profile_id = $profile_id;
152 $blacklist = common_config('public', 'blacklist');
153 $autosource = common_config('public', 'autosource');
155 # Blacklisted are non-false, but not 1, either
157 if (($blacklist && in_array($profile_id, $blacklist)) ||
158 ($source && $autosource && in_array($source, $autosource))) {
159 $notice->is_local = -1;
161 $notice->is_local = $is_local;
164 $notice->query('BEGIN');
166 $notice->reply_to = $reply_to;
167 $notice->created = common_sql_now();
168 $notice->content = $content;
169 $notice->rendered = common_render_content($content, $notice);
170 $notice->source = $source;
173 if (!empty($reply_to)) {
174 $reply_notice = Notice::staticGet('id', $reply_to);
175 if (!empty($reply_notice)) {
176 $notice->reply_to = $reply_to;
177 $notice->conversation = $reply_notice->conversation;
181 if (Event::handle('StartNoticeSave', array(&$notice))) {
183 $id = $notice->insert();
186 common_log_db_error($notice, 'INSERT', __FILE__);
187 return _('Problem saving notice.');
190 # Update the URI after the notice is in the database
192 $orig = clone($notice);
193 $notice->uri = common_notice_uri($notice);
195 if (!$notice->update($orig)) {
196 common_log_db_error($notice, 'UPDATE', __FILE__);
197 return _('Problem saving notice.');
201 # XXX: do we need to change this for remote users?
203 $notice->saveReplies();
205 $notice->saveGroups();
207 if (common_config('queue', 'enabled')) {
208 $notice->addToAuthorInbox();
210 $notice->addToInboxes();
213 $notice->query('COMMIT');
215 Event::handle('EndNoticeSave', array($notice));
218 # Clear the cache for subscribed users, so they'll update at next request
219 # XXX: someone clever could prepend instead of clearing the cache
221 if (common_config('memcached', 'enabled')) {
222 if (common_config('queue', 'enabled')) {
223 $notice->blowAuthorCaches();
225 $notice->blowCaches();
232 static function checkDupes($profile_id, $content) {
233 $profile = Profile::staticGet($profile_id);
237 $notice = $profile->getNotices(0, NOTICE_CACHE_WINDOW);
240 while ($notice->fetch()) {
241 if (time() - strtotime($notice->created) >= common_config('site', 'dupelimit')) {
243 } else if ($notice->content == $content) {
248 # If we get here, oldest item in cache window is not
249 # old enough for dupe limit; do direct check against DB
250 $notice = new Notice();
251 $notice->profile_id = $profile_id;
252 $notice->content = $content;
253 if (common_config('db','type') == 'pgsql')
254 $notice->whereAdd('extract(epoch from now() - created) < ' . common_config('site', 'dupelimit'));
256 $notice->whereAdd('now() - created < ' . common_config('site', 'dupelimit'));
258 $cnt = $notice->count();
262 static function checkEditThrottle($profile_id) {
263 $profile = Profile::staticGet($profile_id);
268 $notice = $profile->getNotices(common_config('throttle', 'count') - 1, 1);
269 if ($notice && $notice->fetch()) {
270 # If the Nth notice was posted less than timespan seconds ago
271 if (time() - strtotime($notice->created) <= common_config('throttle', 'timespan')) {
276 # Either not N notices in the stream, OR the Nth was not posted within timespan seconds
280 function hasAttachments() {
282 $query = "select count(file_id) as n_attachments from file join file_to_post on (file_id = file.id) join notice on (post_id = notice.id) where post_id = " . $post->escape($post->id);
283 $post->query($query);
285 $n_attachments = intval($post->n_attachments);
287 return $n_attachments;
290 function blowCaches($blowLast=false)
292 $this->blowSubsCache($blowLast);
293 $this->blowNoticeCache($blowLast);
294 $this->blowRepliesCache($blowLast);
295 $this->blowPublicCache($blowLast);
296 $this->blowTagCache($blowLast);
297 $this->blowGroupCache($blowLast);
300 function blowAuthorCaches($blowLast=false)
302 // Clear the user's cache
303 $cache = common_memcache();
304 if (!empty($cache)) {
305 $cache->delete(common_cache_key('notice_inbox:by_user:'.$this->profile_id));
307 $this->blowNoticeCache($blowLast);
308 $this->blowPublicCache($blowLast);
311 function blowGroupCache($blowLast=false)
313 $cache = common_memcache();
315 $group_inbox = new Group_inbox();
316 $group_inbox->notice_id = $this->id;
317 if ($group_inbox->find()) {
318 while ($group_inbox->fetch()) {
319 $cache->delete(common_cache_key('user_group:notice_ids:' . $group_inbox->group_id));
321 $cache->delete(common_cache_key('user_group:notice_ids:' . $group_inbox->group_id.';last'));
323 $member = new Group_member();
324 $member->group_id = $group_inbox->group_id;
325 if ($member->find()) {
326 while ($member->fetch()) {
327 $cache->delete(common_cache_key('notice_inbox:by_user:' . $member->profile_id));
329 $cache->delete(common_cache_key('notice_inbox:by_user:' . $member->profile_id . ';last'));
335 $group_inbox->free();
340 function blowTagCache($blowLast=false)
342 $cache = common_memcache();
344 $tag = new Notice_tag();
345 $tag->notice_id = $this->id;
347 while ($tag->fetch()) {
348 $tag->blowCache($blowLast);
356 function blowSubsCache($blowLast=false)
358 $cache = common_memcache();
362 $UT = common_config('db','type')=='pgsql'?'"user"':'user';
363 $user->query('SELECT id ' .
365 "FROM $UT JOIN subscription ON $UT.id = subscription.subscriber " .
366 'WHERE subscription.subscribed = ' . $this->profile_id);
368 while ($user->fetch()) {
369 $cache->delete(common_cache_key('notice_inbox:by_user:'.$user->id));
371 $cache->delete(common_cache_key('notice_inbox:by_user:'.$user->id.';last'));
379 function blowNoticeCache($blowLast=false)
381 if ($this->is_local) {
382 $cache = common_memcache();
383 if (!empty($cache)) {
384 $cache->delete(common_cache_key('profile:notice_ids:'.$this->profile_id));
386 $cache->delete(common_cache_key('profile:notice_ids:'.$this->profile_id.';last'));
392 function blowRepliesCache($blowLast=false)
394 $cache = common_memcache();
396 $reply = new Reply();
397 $reply->notice_id = $this->id;
398 if ($reply->find()) {
399 while ($reply->fetch()) {
400 $cache->delete(common_cache_key('reply:stream:'.$reply->profile_id));
402 $cache->delete(common_cache_key('reply:stream:'.$reply->profile_id.';last'));
411 function blowPublicCache($blowLast=false)
413 if ($this->is_local == 1) {
414 $cache = common_memcache();
416 $cache->delete(common_cache_key('public'));
418 $cache->delete(common_cache_key('public').';last');
424 function blowFavesCache($blowLast=false)
426 $cache = common_memcache();
429 $fave->notice_id = $this->id;
431 while ($fave->fetch()) {
432 $cache->delete(common_cache_key('fave:ids_by_user:'.$fave->user_id));
434 $cache->delete(common_cache_key('fave:ids_by_user:'.$fave->user_id.';last'));
443 # XXX: too many args; we need to move to named params or even a separate
444 # class for notice streams
446 static function getStream($qry, $cachekey, $offset=0, $limit=20, $since_id=0, $before_id=0, $order=null, $since=null) {
448 if (common_config('memcached', 'enabled')) {
450 # Skip the cache if this is a since, since_id or before_id qry
451 if ($since_id > 0 || $before_id > 0 || $since) {
452 return Notice::getStreamDirect($qry, $offset, $limit, $since_id, $before_id, $order, $since);
454 return Notice::getCachedStream($qry, $cachekey, $offset, $limit, $order);
458 return Notice::getStreamDirect($qry, $offset, $limit, $since_id, $before_id, $order, $since);
461 static function getStreamDirect($qry, $offset, $limit, $since_id, $before_id, $order, $since) {
466 if (preg_match('/\bWHERE\b/i', $qry)) {
480 $qry .= ' notice.id > ' . $since_id;
483 if ($before_id > 0) {
492 $qry .= ' notice.id < ' . $before_id;
504 $qry .= ' notice.created > \'' . date('Y-m-d H:i:s', $since) . '\'';
507 # Allow ORDER override
512 $qry .= ' ORDER BY notice.created DESC, notice.id DESC ';
515 if (common_config('db','type') == 'pgsql') {
516 $qry .= ' LIMIT ' . $limit . ' OFFSET ' . $offset;
518 $qry .= ' LIMIT ' . $offset . ', ' . $limit;
521 $notice = new Notice();
523 $notice->query($qry);
528 # XXX: this is pretty long and should probably be broken up into
529 # some helper functions
531 static function getCachedStream($qry, $cachekey, $offset, $limit, $order) {
533 # If outside our cache window, just go to the DB
535 if ($offset + $limit > NOTICE_CACHE_WINDOW) {
536 return Notice::getStreamDirect($qry, $offset, $limit, null, null, $order, null);
539 # Get the cache; if we can't, just go to the DB
541 $cache = common_memcache();
544 return Notice::getStreamDirect($qry, $offset, $limit, null, null, $order, null);
547 # Get the notices out of the cache
549 $notices = $cache->get(common_cache_key($cachekey));
551 # On a cache hit, return a DB-object-like wrapper
553 if ($notices !== false) {
554 $wrapper = new ArrayWrapper(array_slice($notices, $offset, $limit));
558 # If the cache was invalidated because of new data being
559 # added, we can try and just get the new stuff. We keep an additional
560 # copy of the data at the key + ';last'
562 # No cache hit. Try to get the *last* cached version
564 $last_notices = $cache->get(common_cache_key($cachekey) . ';last');
568 # Reverse-chron order, so last ID is last.
570 $last_id = $last_notices[0]->id;
572 # XXX: this assumes monotonically increasing IDs; a fair
575 $new_notice = Notice::getStreamDirect($qry, 0, NOTICE_CACHE_WINDOW,
576 $last_id, null, $order, null);
579 $new_notices = array();
580 while ($new_notice->fetch()) {
581 $new_notices[] = clone($new_notice);
584 $notices = array_slice(array_merge($new_notices, $last_notices),
585 0, NOTICE_CACHE_WINDOW);
587 # Store the array in the cache for next time
589 $result = $cache->set(common_cache_key($cachekey), $notices);
590 $result = $cache->set(common_cache_key($cachekey) . ';last', $notices);
592 # return a wrapper of the array for use now
594 return new ArrayWrapper(array_slice($notices, $offset, $limit));
598 # Otherwise, get the full cache window out of the DB
600 $notice = Notice::getStreamDirect($qry, 0, NOTICE_CACHE_WINDOW, null, null, $order, null);
602 # If there are no hits, just return the value
608 # Pack results into an array
612 while ($notice->fetch()) {
613 $notices[] = clone($notice);
618 # Store the array in the cache for next time
620 $result = $cache->set(common_cache_key($cachekey), $notices);
621 $result = $cache->set(common_cache_key($cachekey) . ';last', $notices);
623 # return a wrapper of the array for use now
625 $wrapper = new ArrayWrapper(array_slice($notices, $offset, $limit));
630 function getStreamByIds($ids)
632 $cache = common_memcache();
634 if (!empty($cache)) {
636 foreach ($ids as $id) {
637 $notices[] = Notice::staticGet('id', $id);
639 return new ArrayWrapper($notices);
641 $notice = new Notice();
642 $notice->whereAdd('id in (' . implode(', ', $ids) . ')');
643 $notice->orderBy('id DESC');
650 function publicStream($offset=0, $limit=20, $since_id=0, $before_id=0, $since=null)
652 $ids = Notice::stream(array('Notice', '_publicStreamDirect'),
655 $offset, $limit, $since_id, $before_id, $since);
657 return Notice::getStreamByIds($ids);
660 function _publicStreamDirect($offset=0, $limit=20, $since_id=0, $before_id=0, $since=null)
662 $notice = new Notice();
664 $notice->selectAdd(); // clears it
665 $notice->selectAdd('id');
667 $notice->orderBy('id DESC');
669 if (!is_null($offset)) {
670 $notice->limit($offset, $limit);
673 if (common_config('public', 'localonly')) {
674 $notice->whereAdd('is_local = 1');
677 $notice->whereAdd('is_local != -1');
680 if ($since_id != 0) {
681 $notice->whereAdd('id > ' . $since_id);
684 if ($before_id != 0) {
685 $notice->whereAdd('id < ' . $before_id);
688 if (!is_null($since)) {
689 $notice->whereAdd('created > \'' . date('Y-m-d H:i:s', $since) . '\'');
694 if ($notice->find()) {
695 while ($notice->fetch()) {
696 $ids[] = $notice->id;
706 function addToInboxes()
708 $enabled = common_config('inboxes', 'enabled');
710 if ($enabled === true || $enabled === 'transitional') {
711 $inbox = new Notice_inbox();
712 $UT = common_config('db','type')=='pgsql'?'"user"':'user';
713 $qry = 'INSERT INTO notice_inbox (user_id, notice_id, created) ' .
714 "SELECT $UT.id, " . $this->id . ", '" . $this->created . "' " .
715 "FROM $UT JOIN subscription ON $UT.id = subscription.subscriber " .
716 'WHERE subscription.subscribed = ' . $this->profile_id . ' ' .
717 'AND NOT EXISTS (SELECT user_id, notice_id ' .
718 'FROM notice_inbox ' .
719 "WHERE user_id = $UT.id " .
720 'AND notice_id = ' . $this->id . ' )';
721 if ($enabled === 'transitional') {
722 $qry .= " AND $UT.inboxed = 1";
729 function addToAuthorInbox()
731 $enabled = common_config('inboxes', 'enabled');
733 if ($enabled === true || $enabled === 'transitional') {
734 $user = User::staticGet('id', $this->profile_id);
738 $inbox = new Notice_inbox();
739 $UT = common_config('db','type')=='pgsql'?'"user"':'user';
740 $qry = 'INSERT INTO notice_inbox (user_id, notice_id, created) ' .
741 "SELECT $UT.id, " . $this->id . ", '" . $this->created . "' " .
743 "WHERE $UT.id = " . $this->profile_id . ' ' .
744 'AND NOT EXISTS (SELECT user_id, notice_id ' .
745 'FROM notice_inbox ' .
746 "WHERE user_id = " . $this->profile_id . ' '.
747 'AND notice_id = ' . $this->id . ' )';
748 if ($enabled === 'transitional') {
749 $qry .= " AND $UT.inboxed = 1";
756 function saveGroups()
758 $enabled = common_config('inboxes', 'enabled');
759 if ($enabled !== true && $enabled !== 'transitional') {
763 /* extract all !group */
764 $count = preg_match_all('/(?:^|\s)!([A-Za-z0-9]{1,64})/',
765 strtolower($this->content),
771 $profile = $this->getProfile();
773 /* Add them to the database */
775 foreach (array_unique($match[1]) as $nickname) {
776 /* XXX: remote groups. */
777 $group = User_group::staticGet('nickname', $nickname);
783 // we automatically add a tag for every group name, too
785 $tag = Notice_tag::pkeyGet(array('tag' => common_canonical_tag($nickname),
786 'notice_id' => $this->id));
789 $this->saveTag($nickname);
792 if ($profile->isMember($group)) {
794 $gi = new Group_inbox();
796 $gi->group_id = $group->id;
797 $gi->notice_id = $this->id;
798 $gi->created = common_sql_now();
800 $result = $gi->insert();
803 common_log_db_error($gi, 'INSERT', __FILE__);
806 // FIXME: do this in an offline daemon
808 $this->addToGroupInboxes($group);
813 function addToGroupInboxes($group)
815 $inbox = new Notice_inbox();
816 $UT = common_config('db','type')=='pgsql'?'"user"':'user';
817 $qry = 'INSERT INTO notice_inbox (user_id, notice_id, created, source) ' .
818 "SELECT $UT.id, " . $this->id . ", '" . $this->created . "', 2 " .
819 "FROM $UT JOIN group_member ON $UT.id = group_member.profile_id " .
820 'WHERE group_member.group_id = ' . $group->id . ' ' .
821 'AND NOT EXISTS (SELECT user_id, notice_id ' .
822 'FROM notice_inbox ' .
823 "WHERE user_id = $UT.id " .
824 'AND notice_id = ' . $this->id . ' )';
825 if ($enabled === 'transitional') {
826 $qry .= " AND $UT.inboxed = 1";
828 $result = $inbox->query($qry);
831 function saveReplies()
833 // Alternative reply format
835 if (preg_match('/^T ([A-Z0-9]{1,64}) /', $this->content, $match)) {
838 // extract all @messages
839 $cnt = preg_match_all('/(?:^|\s)@([a-z0-9]{1,64})/', $this->content, $match);
843 if ($cnt || $tname) {
844 // XXX: is there another way to make an array copy?
845 $names = ($tname) ? array_unique(array_merge(array(strtolower($tname)), $match[1])) : array_unique($match[1]);
848 $sender = Profile::staticGet($this->profile_id);
852 // store replied only for first @ (what user/notice what the reply directed,
853 // we assume first @ is it)
855 for ($i=0; $i<count($names); $i++) {
856 $nickname = $names[$i];
857 $recipient = common_relative_profile($sender, $nickname, $this->created);
861 if ($i == 0 && ($recipient->id != $sender->id) && !$this->reply_to) { // Don't save reply to self
862 $reply_for = $recipient;
863 $recipient_notice = $reply_for->getCurrentNotice();
864 if ($recipient_notice) {
865 $orig = clone($this);
866 $this->reply_to = $recipient_notice->id;
867 $this->conversation = $recipient_notice->conversation;
868 $this->update($orig);
871 // Don't save replies from blocked profile to local user
872 $recipient_user = User::staticGet('id', $recipient->id);
873 if ($recipient_user && $recipient_user->hasBlocked($sender)) {
876 $reply = new Reply();
877 $reply->notice_id = $this->id;
878 $reply->profile_id = $recipient->id;
879 $id = $reply->insert();
881 $last_error = &PEAR::getStaticProperty('DB_DataObject','lastError');
882 common_log(LOG_ERR, 'DB error inserting reply: ' . $last_error->message);
883 common_server_error(sprintf(_('DB error inserting reply: %s'), $last_error->message));
886 $replied[$recipient->id] = 1;
890 // Hash format replies, too
891 $cnt = preg_match_all('/(?:^|\s)@#([a-z0-9]{1,64})/', $this->content, $match);
893 foreach ($match[1] as $tag) {
894 $tagged = Profile_tag::getTagged($sender->id, $tag);
895 foreach ($tagged as $t) {
896 if (!$replied[$t->id]) {
897 // Don't save replies from blocked profile to local user
898 $t_user = User::staticGet('id', $t->id);
899 if ($t_user && $t_user->hasBlocked($sender)) {
902 $reply = new Reply();
903 $reply->notice_id = $this->id;
904 $reply->profile_id = $t->id;
905 $id = $reply->insert();
907 common_log_db_error($reply, 'INSERT', __FILE__);
910 $replied[$recipient->id] = 1;
917 // If it's not a reply, make it the root of a new conversation
919 if (empty($this->conversation)) {
920 $orig = clone($this);
921 $this->conversation = $this->id;
922 $this->update($orig);
925 foreach (array_keys($replied) as $recipient) {
926 $user = User::staticGet('id', $recipient);
928 mail_notify_attn($user, $this);
933 function asAtomEntry($namespace=false, $source=false)
935 $profile = $this->getProfile();
937 $xs = new XMLStringer(true);
940 $attrs = array('xmlns' => 'http://www.w3.org/2005/Atom',
941 'xmlns:thr' => 'http://purl.org/syndication/thread/1.0');
946 $xs->elementStart('entry', $attrs);
949 $xs->elementStart('source');
950 $xs->element('title', null, $profile->nickname . " - " . common_config('site', 'name'));
951 $xs->element('link', array('href' => $profile->profileurl));
952 $user = User::staticGet('id', $profile->id);
954 $atom_feed = common_local_url('api',
955 array('apiaction' => 'statuses',
956 'method' => 'user_timeline',
957 'argument' => $profile->nickname.'.atom'));
958 $xs->element('link', array('rel' => 'self',
959 'type' => 'application/atom+xml',
960 'href' => $profile->profileurl));
961 $xs->element('link', array('rel' => 'license',
962 'href' => common_config('license', 'url')));
965 $xs->element('icon', null, $profile->avatarUrl(AVATAR_PROFILE_SIZE));
968 $xs->elementStart('author');
969 $xs->element('name', null, $profile->nickname);
970 $xs->element('uri', null, $profile->profileurl);
971 $xs->elementEnd('author');
974 $xs->elementEnd('source');
977 $xs->element('title', null, $this->content);
978 $xs->element('summary', null, $this->content);
980 $xs->element('link', array('rel' => 'alternate',
981 'href' => $this->bestUrl()));
983 $xs->element('id', null, $this->uri);
985 $xs->element('published', null, common_date_w3dtf($this->created));
986 $xs->element('updated', null, common_date_w3dtf($this->modified));
988 if ($this->reply_to) {
989 $reply_notice = Notice::staticGet('id', $this->reply_to);
990 if (!empty($reply_notice)) {
991 $xs->element('link', array('rel' => 'related',
992 'href' => $reply_notice->bestUrl()));
993 $xs->element('thr:in-reply-to',
994 array('ref' => $reply_notice->uri,
995 'href' => $reply_notice->bestUrl()));
999 $xs->element('content', array('type' => 'html'), $this->rendered);
1001 $tag = new Notice_tag();
1002 $tag->notice_id = $this->id;
1004 while ($tag->fetch()) {
1005 $xs->element('category', array('term' => $tag->tag));
1010 $xs->elementEnd('entry');
1012 return $xs->getString();
1017 if (!empty($this->url)) {
1019 } else if (!empty($this->uri) && preg_match('/^https?:/', $this->uri)) {
1022 return common_local_url('shownotice',
1023 array('notice' => $this->id));
1027 function stream($fn, $args, $cachekey, $offset=0, $limit=20, $since_id=0, $before_id=0, $since=null, $tag=null)
1029 $cache = common_memcache();
1031 if (empty($cache) ||
1032 $since_id != 0 || $before_id != 0 || !is_null($since) ||
1033 ($offset + $limit) > NOTICE_CACHE_WINDOW) {
1034 return call_user_func_array($fn, array_merge($args, array($offset, $limit, $since_id,
1035 $before_id, $since, $tag)));
1038 $idkey = common_cache_key($cachekey);
1040 $idstr = $cache->get($idkey);
1042 if (!empty($idstr)) {
1043 // Cache hit! Woohoo!
1044 $window = explode(',', $idstr);
1045 $ids = array_slice($window, $offset, $limit);
1049 $laststr = $cache->get($idkey.';last');
1051 if (!empty($laststr)) {
1052 $window = explode(',', $laststr);
1053 $last_id = $window[0];
1054 $new_ids = call_user_func_array($fn, array_merge($args, array(0, NOTICE_CACHE_WINDOW,
1055 $last_id, 0, null, $tag)));
1057 $new_window = array_merge($new_ids, $window);
1059 $new_windowstr = implode(',', $new_window);
1061 $result = $cache->set($idkey, $new_windowstr);
1062 $result = $cache->set($idkey . ';last', $new_windowstr);
1064 $ids = array_slice($new_window, $offset, $limit);
1069 $window = call_user_func_array($fn, array_merge($args, array(0, NOTICE_CACHE_WINDOW,
1070 0, 0, null, $tag)));
1072 $windowstr = implode(',', $window);
1074 $result = $cache->set($idkey, $windowstr);
1075 $result = $cache->set($idkey . ';last', $windowstr);
1077 $ids = array_slice($window, $offset, $limit);