forked from GNUsocial/gnu-social
da2348fbbe
We optionally ignore some notice sources from the public page. Typically these are automatic notice sources like twitterfeed that don't usually represent the community on the site very well.
742 lines
25 KiB
PHP
742 lines
25 KiB
PHP
<?php
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/*
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* Laconica - a distributed open-source microblogging tool
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* Copyright (C) 2008, Controlez-Vous, 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')) { exit(1); }
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/**
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* Table Definition for notice
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*/
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require_once INSTALLDIR.'/classes/Memcached_DataObject.php';
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/* We keep the first three 20-notice pages, plus one for pagination check,
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* in the memcached cache. */
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define('NOTICE_CACHE_WINDOW', 61);
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class Notice extends Memcached_DataObject
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{
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###START_AUTOCODE
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/* the code below is auto generated do not remove the above tag */
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public $__table = 'notice'; // table name
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public $id; // int(4) primary_key not_null
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public $profile_id; // int(4) not_null
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public $uri; // varchar(255) unique_key
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public $content; // varchar(140)
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public $rendered; // text()
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public $url; // varchar(255)
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public $created; // datetime() not_null
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public $modified; // timestamp() not_null default_CURRENT_TIMESTAMP
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public $reply_to; // int(4)
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public $is_local; // tinyint(1)
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public $source; // varchar(32)
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/* Static get */
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function staticGet($k,$v=null)
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{ return Memcached_DataObject::staticGet('Notice',$k,$v); }
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/* the code above is auto generated do not remove the tag below */
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###END_AUTOCODE
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function getProfile()
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{
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return Profile::staticGet('id', $this->profile_id);
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}
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function delete()
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{
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$this->blowCaches(true);
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$this->blowFavesCache(true);
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$this->blowSubsCache(true);
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$this->query('BEGIN');
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$related = array('Reply',
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'Fave',
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'Notice_tag',
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'Group_inbox',
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'Queue_item');
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if (common_config('inboxes', 'enabled')) {
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$related[] = 'Notice_inbox';
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}
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foreach ($related as $cls) {
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$inst = new $cls();
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$inst->notice_id = $this->id;
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$inst->delete();
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}
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$result = parent::delete();
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$this->query('COMMIT');
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}
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function saveTags()
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{
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/* extract all #hastags */
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$count = preg_match_all('/(?:^|\s)#([A-Za-z0-9_\-\.]{1,64})/', strtolower($this->content), $match);
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if (!$count) {
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return true;
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}
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/* Add them to the database */
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foreach(array_unique($match[1]) as $hashtag) {
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/* elide characters we don't want in the tag */
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$hashtag = common_canonical_tag($hashtag);
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$tag = DB_DataObject::factory('Notice_tag');
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$tag->notice_id = $this->id;
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$tag->tag = $hashtag;
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$tag->created = $this->created;
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$id = $tag->insert();
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if (!$id) {
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$last_error = PEAR::getStaticProperty('DB_DataObject','lastError');
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common_log(LOG_ERR, 'DB error inserting hashtag: ' . $last_error->message);
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common_server_error(sprintf(_('DB error inserting hashtag: %s'), $last_error->message));
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return;
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}
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}
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return true;
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}
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static function saveNew($profile_id, $content, $source=null, $is_local=1, $reply_to=null, $uri=null) {
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$profile = Profile::staticGet($profile_id);
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if (!$profile) {
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common_log(LOG_ERR, 'Problem saving notice. Unknown user.');
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return _('Problem saving notice. Unknown user.');
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}
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if (common_config('throttle', 'enabled') && !Notice::checkEditThrottle($profile_id)) {
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common_log(LOG_WARNING, 'Excessive posting by profile #' . $profile_id . '; throttled.');
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return _('Too many notices too fast; take a breather and post again in a few minutes.');
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}
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$banned = common_config('profile', 'banned');
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if ( in_array($profile_id, $banned) || in_array($profile->nickname, $banned)) {
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common_log(LOG_WARNING, "Attempted post from banned user: $profile->nickname (user id = $profile_id).");
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return _('You are banned from posting notices on this site.');
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}
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$notice = new Notice();
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$notice->profile_id = $profile_id;
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$blacklist = common_config('public', 'blacklist');
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$autosource = common_config('public', 'autosource');
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# Blacklisted are non-false, but not 1, either
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if (($blacklist && in_array($profile_id, $blacklist)) ||
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($source && $autosource && in_array($source, $autosource))) {
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$notice->is_local = -1;
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} else {
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$notice->is_local = $is_local;
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}
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$notice->query('BEGIN');
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$notice->reply_to = $reply_to;
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$notice->created = common_sql_now();
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$notice->content = common_shorten_links($content);
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$notice->rendered = common_render_content($notice->content, $notice);
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$notice->source = $source;
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$notice->uri = $uri;
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if (Event::handle('StartNoticeSave', array(&$notice))) {
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$id = $notice->insert();
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if (!$id) {
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common_log_db_error($notice, 'INSERT', __FILE__);
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return _('Problem saving notice.');
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}
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# Update the URI after the notice is in the database
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if (!$uri) {
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$orig = clone($notice);
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$notice->uri = common_notice_uri($notice);
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if (!$notice->update($orig)) {
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common_log_db_error($notice, 'UPDATE', __FILE__);
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return _('Problem saving notice.');
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}
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}
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# XXX: do we need to change this for remote users?
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$notice->saveReplies();
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$notice->saveTags();
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$notice->saveGroups();
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$notice->addToInboxes();
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$notice->query('COMMIT');
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Event::handle('EndNoticeSave', array($notice));
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}
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# Clear the cache for subscribed users, so they'll update at next request
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# XXX: someone clever could prepend instead of clearing the cache
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if (common_config('memcached', 'enabled')) {
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$notice->blowCaches();
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}
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return $notice;
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}
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static function checkEditThrottle($profile_id) {
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$profile = Profile::staticGet($profile_id);
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if (!$profile) {
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return false;
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}
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# Get the Nth notice
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$notice = $profile->getNotices(common_config('throttle', 'count') - 1, 1);
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if ($notice && $notice->fetch()) {
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# If the Nth notice was posted less than timespan seconds ago
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if (time() - strtotime($notice->created) <= common_config('throttle', 'timespan')) {
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# Then we throttle
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return false;
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}
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}
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# Either not N notices in the stream, OR the Nth was not posted within timespan seconds
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return true;
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}
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function blowCaches($blowLast=false)
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{
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$this->blowSubsCache($blowLast);
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$this->blowNoticeCache($blowLast);
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$this->blowRepliesCache($blowLast);
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$this->blowPublicCache($blowLast);
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$this->blowTagCache($blowLast);
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$this->blowGroupCache($blowLast);
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}
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function blowGroupCache($blowLast=false)
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{
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$cache = common_memcache();
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if ($cache) {
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$group_inbox = new Group_inbox();
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$group_inbox->notice_id = $this->id;
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if ($group_inbox->find()) {
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while ($group_inbox->fetch()) {
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$cache->delete(common_cache_key('group:notices:'.$group_inbox->group_id));
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if ($blowLast) {
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$cache->delete(common_cache_key('group:notices:'.$group_inbox->group_id.';last'));
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}
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$member = new Group_member();
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$member->group_id = $group_inbox->group_id;
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if ($member->find()) {
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while ($member->fetch()) {
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$cache->delete(common_cache_key('user:notices_with_friends:' . $member->profile_id));
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if ($blowLast) {
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$cache->delete(common_cache_key('user:notices_with_friends:' . $member->profile_id . ';last'));
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}
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}
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}
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}
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}
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$group_inbox->free();
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unset($group_inbox);
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}
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}
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function blowTagCache($blowLast=false)
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{
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$cache = common_memcache();
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if ($cache) {
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$tag = new Notice_tag();
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$tag->notice_id = $this->id;
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if ($tag->find()) {
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while ($tag->fetch()) {
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$cache->delete(common_cache_key('notice_tag:notice_stream:' . $tag->tag));
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if ($blowLast) {
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$cache->delete(common_cache_key('notice_tag:notice_stream:' . $tag->tag . ';last'));
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}
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}
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}
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$tag->free();
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unset($tag);
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}
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}
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function blowSubsCache($blowLast=false)
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{
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$cache = common_memcache();
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if ($cache) {
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$user = new User();
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$UT = common_config('db','type')=='pgsql'?'"user"':'user';
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$user->query('SELECT id ' .
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"FROM $UT JOIN subscription ON $UT.id = subscription.subscriber " .
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'WHERE subscription.subscribed = ' . $this->profile_id);
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while ($user->fetch()) {
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$cache->delete(common_cache_key('user:notices_with_friends:' . $user->id));
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if ($blowLast) {
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$cache->delete(common_cache_key('user:notices_with_friends:' . $user->id . ';last'));
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}
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}
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$user->free();
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unset($user);
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}
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}
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function blowNoticeCache($blowLast=false)
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{
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if ($this->is_local) {
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$cache = common_memcache();
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if ($cache) {
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$cache->delete(common_cache_key('profile:notices:'.$this->profile_id));
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if ($blowLast) {
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$cache->delete(common_cache_key('profile:notices:'.$this->profile_id.';last'));
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}
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}
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}
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}
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function blowRepliesCache($blowLast=false)
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{
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$cache = common_memcache();
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if ($cache) {
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$reply = new Reply();
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$reply->notice_id = $this->id;
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if ($reply->find()) {
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while ($reply->fetch()) {
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$cache->delete(common_cache_key('user:replies:'.$reply->profile_id));
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if ($blowLast) {
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$cache->delete(common_cache_key('user:replies:'.$reply->profile_id.';last'));
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}
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}
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}
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$reply->free();
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unset($reply);
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}
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}
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function blowPublicCache($blowLast=false)
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{
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if ($this->is_local == 1) {
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$cache = common_memcache();
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if ($cache) {
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$cache->delete(common_cache_key('public'));
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if ($blowLast) {
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$cache->delete(common_cache_key('public').';last');
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}
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}
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}
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}
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function blowFavesCache($blowLast=false)
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{
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$cache = common_memcache();
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if ($cache) {
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$fave = new Fave();
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$fave->notice_id = $this->id;
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if ($fave->find()) {
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while ($fave->fetch()) {
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$cache->delete(common_cache_key('user:faves:'.$fave->user_id));
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if ($blowLast) {
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$cache->delete(common_cache_key('user:faves:'.$fave->user_id.';last'));
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}
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}
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}
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$fave->free();
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unset($fave);
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}
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}
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# XXX: too many args; we need to move to named params or even a separate
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# class for notice streams
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static function getStream($qry, $cachekey, $offset=0, $limit=20, $since_id=0, $before_id=0, $order=null, $since=null) {
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if (common_config('memcached', 'enabled')) {
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# Skip the cache if this is a since, since_id or before_id qry
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if ($since_id > 0 || $before_id > 0 || $since) {
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return Notice::getStreamDirect($qry, $offset, $limit, $since_id, $before_id, $order, $since);
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} else {
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return Notice::getCachedStream($qry, $cachekey, $offset, $limit, $order);
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}
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}
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return Notice::getStreamDirect($qry, $offset, $limit, $since_id, $before_id, $order, $since);
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}
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static function getStreamDirect($qry, $offset, $limit, $since_id, $before_id, $order, $since) {
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$needAnd = false;
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$needWhere = true;
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if (preg_match('/\bWHERE\b/i', $qry)) {
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$needWhere = false;
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$needAnd = true;
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}
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if ($since_id > 0) {
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if ($needWhere) {
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$qry .= ' WHERE ';
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$needWhere = false;
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} else {
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$qry .= ' AND ';
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}
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$qry .= ' notice.id > ' . $since_id;
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}
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if ($before_id > 0) {
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if ($needWhere) {
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$qry .= ' WHERE ';
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$needWhere = false;
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} else {
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$qry .= ' AND ';
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}
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$qry .= ' notice.id < ' . $before_id;
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}
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if ($since) {
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if ($needWhere) {
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$qry .= ' WHERE ';
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$needWhere = false;
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} else {
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$qry .= ' AND ';
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}
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$qry .= ' notice.created > \'' . date('Y-m-d H:i:s', $since) . '\'';
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}
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# Allow ORDER override
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if ($order) {
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$qry .= $order;
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} else {
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$qry .= ' ORDER BY notice.created DESC, notice.id DESC ';
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}
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if (common_config('db','type') == 'pgsql') {
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$qry .= ' LIMIT ' . $limit . ' OFFSET ' . $offset;
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} else {
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$qry .= ' LIMIT ' . $offset . ', ' . $limit;
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}
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$notice = new Notice();
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$notice->query($qry);
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return $notice;
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}
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# XXX: this is pretty long and should probably be broken up into
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# some helper functions
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static function getCachedStream($qry, $cachekey, $offset, $limit, $order) {
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# If outside our cache window, just go to the DB
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if ($offset + $limit > NOTICE_CACHE_WINDOW) {
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return Notice::getStreamDirect($qry, $offset, $limit, null, null, $order, null);
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}
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# Get the cache; if we can't, just go to the DB
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$cache = common_memcache();
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if (!$cache) {
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return Notice::getStreamDirect($qry, $offset, $limit, null, null, $order, null);
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}
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# Get the notices out of the cache
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$notices = $cache->get(common_cache_key($cachekey));
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# On a cache hit, return a DB-object-like wrapper
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if ($notices !== false) {
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$wrapper = new ArrayWrapper(array_slice($notices, $offset, $limit));
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return $wrapper;
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}
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# If the cache was invalidated because of new data being
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# added, we can try and just get the new stuff. We keep an additional
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# copy of the data at the key + ';last'
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# No cache hit. Try to get the *last* cached version
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$last_notices = $cache->get(common_cache_key($cachekey) . ';last');
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if ($last_notices) {
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# Reverse-chron order, so last ID is last.
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$last_id = $last_notices[0]->id;
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# XXX: this assumes monotonically increasing IDs; a fair
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# bet with our DB.
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$new_notice = Notice::getStreamDirect($qry, 0, NOTICE_CACHE_WINDOW,
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$last_id, null, $order, null);
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if ($new_notice) {
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$new_notices = array();
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while ($new_notice->fetch()) {
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$new_notices[] = clone($new_notice);
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}
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$new_notice->free();
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$notices = array_slice(array_merge($new_notices, $last_notices),
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0, NOTICE_CACHE_WINDOW);
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# Store the array in the cache for next time
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$result = $cache->set(common_cache_key($cachekey), $notices);
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$result = $cache->set(common_cache_key($cachekey) . ';last', $notices);
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# return a wrapper of the array for use now
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return new ArrayWrapper(array_slice($notices, $offset, $limit));
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}
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}
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# Otherwise, get the full cache window out of the DB
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$notice = Notice::getStreamDirect($qry, 0, NOTICE_CACHE_WINDOW, null, null, $order, null);
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# If there are no hits, just return the value
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if (!$notice) {
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return $notice;
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}
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# Pack results into an array
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$notices = array();
|
|
|
|
while ($notice->fetch()) {
|
|
$notices[] = clone($notice);
|
|
}
|
|
|
|
$notice->free();
|
|
|
|
# Store the array in the cache for next time
|
|
|
|
$result = $cache->set(common_cache_key($cachekey), $notices);
|
|
$result = $cache->set(common_cache_key($cachekey) . ';last', $notices);
|
|
|
|
# return a wrapper of the array for use now
|
|
|
|
$wrapper = new ArrayWrapper(array_slice($notices, $offset, $limit));
|
|
|
|
return $wrapper;
|
|
}
|
|
|
|
function publicStream($offset=0, $limit=20, $since_id=0, $before_id=0, $since=null)
|
|
{
|
|
|
|
$parts = array();
|
|
|
|
$qry = 'SELECT * FROM notice ';
|
|
|
|
if (common_config('public', 'localonly')) {
|
|
$parts[] = 'is_local = 1';
|
|
} else {
|
|
# -1 == blacklisted
|
|
$parts[] = 'is_local != -1';
|
|
}
|
|
|
|
if ($parts) {
|
|
$qry .= ' WHERE ' . implode(' AND ', $parts);
|
|
}
|
|
|
|
return Notice::getStream($qry,
|
|
'public',
|
|
$offset, $limit, $since_id, $before_id, null, $since);
|
|
}
|
|
|
|
function addToInboxes()
|
|
{
|
|
$enabled = common_config('inboxes', 'enabled');
|
|
|
|
if ($enabled === true || $enabled === 'transitional') {
|
|
$inbox = new Notice_inbox();
|
|
$UT = common_config('db','type')=='pgsql'?'"user"':'user';
|
|
$qry = 'INSERT INTO notice_inbox (user_id, notice_id, created) ' .
|
|
"SELECT $UT.id, " . $this->id . ', "' . $this->created . '" ' .
|
|
"FROM $UT JOIN subscription ON $UT.id = subscription.subscriber " .
|
|
'WHERE subscription.subscribed = ' . $this->profile_id . ' ' .
|
|
'AND NOT EXISTS (SELECT user_id, notice_id ' .
|
|
'FROM notice_inbox ' .
|
|
"WHERE user_id = $UT.id " .
|
|
'AND notice_id = ' . $this->id . ' )';
|
|
if ($enabled === 'transitional') {
|
|
$qry .= " AND $UT.inboxed = 1";
|
|
}
|
|
$inbox->query($qry);
|
|
}
|
|
return;
|
|
}
|
|
|
|
function saveGroups()
|
|
{
|
|
$enabled = common_config('inboxes', 'enabled');
|
|
if ($enabled !== true && $enabled !== 'transitional') {
|
|
return;
|
|
}
|
|
|
|
/* extract all !group */
|
|
$count = preg_match_all('/(?:^|\s)!([A-Za-z0-9]{1,64})/',
|
|
strtolower($this->content),
|
|
$match);
|
|
if (!$count) {
|
|
return true;
|
|
}
|
|
|
|
$profile = $this->getProfile();
|
|
|
|
/* Add them to the database */
|
|
|
|
foreach (array_unique($match[1]) as $nickname) {
|
|
/* XXX: remote groups. */
|
|
$group = User_group::staticGet('nickname', $nickname);
|
|
|
|
if (!$group) {
|
|
continue;
|
|
}
|
|
|
|
if ($profile->isMember($group)) {
|
|
|
|
$gi = new Group_inbox();
|
|
|
|
$gi->group_id = $group->id;
|
|
$gi->notice_id = $this->id;
|
|
$gi->created = common_sql_now();
|
|
|
|
$result = $gi->insert();
|
|
|
|
if (!$result) {
|
|
common_log_db_error($gi, 'INSERT', __FILE__);
|
|
}
|
|
|
|
// FIXME: do this in an offline daemon
|
|
|
|
$inbox = new Notice_inbox();
|
|
$UT = common_config('db','type')=='pgsql'?'"user"':'user';
|
|
$qry = 'INSERT INTO notice_inbox (user_id, notice_id, created, source) ' .
|
|
"SELECT $UT.id, " . $this->id . ', "' . $this->created . '", 2 ' .
|
|
"FROM $UT JOIN group_member ON $UT.id = group_member.profile_id " .
|
|
'WHERE group_member.group_id = ' . $group->id . ' ' .
|
|
'AND NOT EXISTS (SELECT user_id, notice_id ' .
|
|
'FROM notice_inbox ' .
|
|
"WHERE user_id = $UT.id " .
|
|
'AND notice_id = ' . $this->id . ' )';
|
|
if ($enabled === 'transitional') {
|
|
$qry .= " AND $UT.inboxed = 1";
|
|
}
|
|
$result = $inbox->query($qry);
|
|
}
|
|
}
|
|
}
|
|
|
|
function saveReplies()
|
|
{
|
|
// Alternative reply format
|
|
$tname = false;
|
|
if (preg_match('/^T ([A-Z0-9]{1,64}) /', $this->content, $match)) {
|
|
$tname = $match[1];
|
|
}
|
|
// extract all @messages
|
|
$cnt = preg_match_all('/(?:^|\s)@([a-z0-9]{1,64})/', $this->content, $match);
|
|
|
|
$names = array();
|
|
|
|
if ($cnt || $tname) {
|
|
// XXX: is there another way to make an array copy?
|
|
$names = ($tname) ? array_unique(array_merge(array(strtolower($tname)), $match[1])) : array_unique($match[1]);
|
|
}
|
|
|
|
$sender = Profile::staticGet($this->profile_id);
|
|
|
|
$replied = array();
|
|
|
|
// store replied only for first @ (what user/notice what the reply directed,
|
|
// we assume first @ is it)
|
|
|
|
for ($i=0; $i<count($names); $i++) {
|
|
$nickname = $names[$i];
|
|
$recipient = common_relative_profile($sender, $nickname, $this->created);
|
|
if (!$recipient) {
|
|
continue;
|
|
}
|
|
if ($i == 0 && ($recipient->id != $sender->id) && !$this->reply_to) { // Don't save reply to self
|
|
$reply_for = $recipient;
|
|
$recipient_notice = $reply_for->getCurrentNotice();
|
|
if ($recipient_notice) {
|
|
$orig = clone($this);
|
|
$this->reply_to = $recipient_notice->id;
|
|
$this->update($orig);
|
|
}
|
|
}
|
|
// Don't save replies from blocked profile to local user
|
|
$recipient_user = User::staticGet('id', $recipient->id);
|
|
if ($recipient_user && $recipient_user->hasBlocked($sender)) {
|
|
continue;
|
|
}
|
|
$reply = new Reply();
|
|
$reply->notice_id = $this->id;
|
|
$reply->profile_id = $recipient->id;
|
|
$id = $reply->insert();
|
|
if (!$id) {
|
|
$last_error = &PEAR::getStaticProperty('DB_DataObject','lastError');
|
|
common_log(LOG_ERR, 'DB error inserting reply: ' . $last_error->message);
|
|
common_server_error(sprintf(_('DB error inserting reply: %s'), $last_error->message));
|
|
return;
|
|
} else {
|
|
$replied[$recipient->id] = 1;
|
|
}
|
|
}
|
|
|
|
// Hash format replies, too
|
|
$cnt = preg_match_all('/(?:^|\s)@#([a-z0-9]{1,64})/', $this->content, $match);
|
|
if ($cnt) {
|
|
foreach ($match[1] as $tag) {
|
|
$tagged = Profile_tag::getTagged($sender->id, $tag);
|
|
foreach ($tagged as $t) {
|
|
if (!$replied[$t->id]) {
|
|
// Don't save replies from blocked profile to local user
|
|
$t_user = User::staticGet('id', $t->id);
|
|
if ($t_user && $t_user->hasBlocked($sender)) {
|
|
continue;
|
|
}
|
|
$reply = new Reply();
|
|
$reply->notice_id = $this->id;
|
|
$reply->profile_id = $t->id;
|
|
$id = $reply->insert();
|
|
if (!$id) {
|
|
common_log_db_error($reply, 'INSERT', __FILE__);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|