350 lines
9.0 KiB
PHP
350 lines
9.0 KiB
PHP
<?php
|
|
/*
|
|
* Laconica - a distributed open-source microblogging tool
|
|
* Copyright (C) 2008, Controlez-Vous, Inc.
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Affero General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Affero General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Affero General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
if (!defined('LACONICA')) { exit(1); }
|
|
|
|
/**
|
|
* Table Definition for notice
|
|
*/
|
|
require_once INSTALLDIR.'/classes/Memcached_DataObject.php';
|
|
|
|
/* We keep the first three 20-notice pages, plus one for pagination check,
|
|
* in the memcached cache. */
|
|
|
|
define('NOTICE_CACHE_WINDOW', 61);
|
|
|
|
class Notice extends Memcached_DataObject
|
|
{
|
|
###START_AUTOCODE
|
|
/* the code below is auto generated do not remove the above tag */
|
|
|
|
public $__table = 'notice'; // table name
|
|
public $id; // int(4) primary_key not_null
|
|
public $profile_id; // int(4) not_null
|
|
public $uri; // varchar(255) unique_key
|
|
public $content; // varchar(140)
|
|
public $rendered; // text()
|
|
public $url; // varchar(255)
|
|
public $created; // datetime() not_null
|
|
public $modified; // timestamp() not_null default_CURRENT_TIMESTAMP
|
|
public $reply_to; // int(4)
|
|
public $is_local; // tinyint(1)
|
|
public $source; // varchar(32)
|
|
|
|
/* Static get */
|
|
function staticGet($k,$v=NULL) { return Memcached_DataObject::staticGet('Notice',$k,$v); }
|
|
|
|
/* the code above is auto generated do not remove the tag below */
|
|
###END_AUTOCODE
|
|
|
|
function getProfile() {
|
|
return Profile::staticGet('id', $this->profile_id);
|
|
}
|
|
|
|
function delete() {
|
|
$this->blowCaches();
|
|
$this->blowFavesCache();
|
|
parent::delete();
|
|
}
|
|
|
|
function saveTags() {
|
|
/* extract all #hastags */
|
|
$count = preg_match_all('/(?:^|\s)#([A-Za-z0-9_\-\.]{1,64})/', strtolower($this->content), $match);
|
|
if (!$count) {
|
|
return true;
|
|
}
|
|
|
|
/* elide characters we don't want in the tag */
|
|
$match[1] = str_replace(array('-', '_', '.'), '', $match[1]);
|
|
|
|
/* Add them to the database */
|
|
foreach(array_unique($match[1]) as $hashtag) {
|
|
$tag = DB_DataObject::factory('Notice_tag');
|
|
$tag->notice_id = $this->id;
|
|
$tag->tag = $hashtag;
|
|
$tag->created = $this->created;
|
|
$id = $tag->insert();
|
|
if (!$id) {
|
|
$last_error = PEAR::getStaticProperty('DB_DataObject','lastError');
|
|
common_log(LOG_ERR, 'DB error inserting hashtag: ' . $last_error->message);
|
|
common_server_error(sprintf(_('DB error inserting hashtag: %s'), $last_error->message));
|
|
return;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static function saveNew($profile_id, $content, $source=NULL, $is_local=1, $reply_to=NULL, $uri=NULL) {
|
|
|
|
$notice = new Notice();
|
|
$notice->profile_id = $profile_id;
|
|
$notice->is_local = $is_local;
|
|
$notice->reply_to = $reply_to;
|
|
$notice->created = common_sql_now();
|
|
$notice->content = $content;
|
|
$notice->rendered = common_render_content($notice->content, $notice);
|
|
$notice->source = $source;
|
|
$notice->uri = $uri;
|
|
|
|
$id = $notice->insert();
|
|
|
|
if (!$id) {
|
|
common_log_db_error($notice, 'INSERT', __FILE__);
|
|
return _('Problem saving notice.');
|
|
}
|
|
|
|
# Update the URI after the notice is in the database
|
|
if (!$uri) {
|
|
$orig = clone($notice);
|
|
$notice->uri = common_notice_uri($notice);
|
|
|
|
if (!$notice->update($orig)) {
|
|
common_log_db_error($notice, 'UPDATE', __FILE__);
|
|
return _('Problem saving notice.');
|
|
}
|
|
}
|
|
|
|
# XXX: do we need to change this for remote users?
|
|
|
|
common_save_replies($notice);
|
|
$notice->saveTags();
|
|
|
|
# Clear the cache for subscribed users, so they'll update at next request
|
|
# XXX: someone clever could prepend instead of clearing the cache
|
|
|
|
if (common_config('memcached', 'enabled')) {
|
|
$notice->blowCaches();
|
|
}
|
|
|
|
return $notice;
|
|
}
|
|
|
|
function blowCaches() {
|
|
$this->blowSubsCache();
|
|
$this->blowNoticeCache();
|
|
$this->blowRepliesCache();
|
|
$this->blowPublicCache();
|
|
$this->blowTagCache();
|
|
}
|
|
|
|
function blowTagCache() {
|
|
$cache = common_memcache();
|
|
if ($cache) {
|
|
$tag = new Notice_tag();
|
|
$tag->notice_id = $this->id;
|
|
if ($tag->find()) {
|
|
while ($tag->fetch()) {
|
|
$cache->delete(common_cache_key('notice_tag:notice_stream:' . $tag->tag));
|
|
}
|
|
}
|
|
$tag->free();
|
|
unset($tag);
|
|
}
|
|
}
|
|
|
|
function blowSubsCache() {
|
|
$cache = common_memcache();
|
|
if ($cache) {
|
|
$user = new User();
|
|
|
|
$user->query('SELECT id ' .
|
|
'FROM user JOIN subscription ON user.id = subscription.subscriber ' .
|
|
'WHERE subscription.subscribed = ' . $this->profile_id);
|
|
|
|
while ($user->fetch()) {
|
|
$cache->delete(common_cache_key('user:notices_with_friends:' . $user->id));
|
|
}
|
|
|
|
$user->free();
|
|
unset($user);
|
|
}
|
|
}
|
|
|
|
function blowNoticeCache() {
|
|
if ($this->is_local) {
|
|
$cache = common_memcache();
|
|
if ($cache) {
|
|
$cache->delete(common_cache_key('user:notices:'.$this->profile_id));
|
|
}
|
|
}
|
|
}
|
|
|
|
function blowRepliesCache() {
|
|
$cache = common_memcache();
|
|
if ($cache) {
|
|
$reply = new Reply();
|
|
$reply->notice_id = $this->id;
|
|
if ($reply->find()) {
|
|
while ($reply->fetch()) {
|
|
$cache->delete(common_cache_key('user:replies:'.$reply->profile_id));
|
|
}
|
|
}
|
|
$reply->free();
|
|
unset($reply);
|
|
}
|
|
}
|
|
|
|
function blowPublicCache() {
|
|
if ($this->is_local) {
|
|
$cache = common_memcache();
|
|
if ($cache) {
|
|
$cache->delete(common_cache_key('public'));
|
|
}
|
|
}
|
|
}
|
|
|
|
function blowFavesCache() {
|
|
$cache = common_memcache();
|
|
if ($cache) {
|
|
$fave = new Fave();
|
|
$fave->notice_id = $this->id;
|
|
if ($fave->find()) {
|
|
while ($fave->fetch()) {
|
|
$cache->delete(common_cache_key('user:faves:'.$fave->user_id));
|
|
}
|
|
}
|
|
$fave->free();
|
|
unset($fave);
|
|
}
|
|
}
|
|
|
|
static function getStream($qry, $cachekey, $offset=0, $limit=20) {
|
|
|
|
if (common_config('memcached', 'enabled')) {
|
|
return Notice::getCachedStream($qry, $cachekey, $offset, $limit);
|
|
} else {
|
|
return Notice::getStreamDirect($qry, $offset, $limit);
|
|
}
|
|
|
|
}
|
|
|
|
static function getStreamDirect($qry, $offset, $limit) {
|
|
|
|
$qry .= ' ORDER BY notice.created DESC, notice.id DESC ';
|
|
|
|
if(common_config('db','type')=='pgsql') {
|
|
$qry .= ' LIMIT ' . $limit . ' OFFSET ' . $offset;
|
|
} else {
|
|
$qry .= ' LIMIT ' . $offset . ', ' . $limit;
|
|
}
|
|
|
|
$notice = new Notice();
|
|
|
|
$notice->query($qry);
|
|
|
|
return $notice;
|
|
}
|
|
|
|
static function getCachedStream($qry, $cachekey, $offset, $limit) {
|
|
|
|
# If outside our cache window, just go to the DB
|
|
|
|
if ($offset + $limit > NOTICE_CACHE_WINDOW) {
|
|
return Notice::getStreamDirect($qry, $offset, $limit);
|
|
}
|
|
|
|
# Get the cache; if we can't, just go to the DB
|
|
|
|
$cache = common_memcache();
|
|
|
|
|
|
if (!$cache) {
|
|
return Notice::getStreamDirect($qry, $offset, $limit);
|
|
}
|
|
|
|
# Get the notices out of the cache
|
|
|
|
$notices = $cache->get(common_cache_key($cachekey));
|
|
|
|
# On a cache hit, return a DB-object-like wrapper
|
|
|
|
if ($notices !== FALSE) {
|
|
$wrapper = new NoticeWrapper(array_slice($notices, $offset, $limit));
|
|
return $wrapper;
|
|
}
|
|
|
|
# Otherwise, get the full cache window out of the DB
|
|
|
|
$notice = Notice::getStreamDirect($qry, 0, NOTICE_CACHE_WINDOW);
|
|
|
|
# If there are no hits, just return the value
|
|
|
|
if (!$notice) {
|
|
return $notice;
|
|
}
|
|
|
|
# Pack results into an array
|
|
|
|
$notices = array();
|
|
|
|
while ($notice->fetch()) {
|
|
$notices[] = clone($notice);
|
|
}
|
|
|
|
# Store the array in the cache for next time
|
|
|
|
$result = $cache->set(common_cache_key($cachekey), $notices);
|
|
|
|
# return a wrapper of the array for use now
|
|
|
|
$wrapper = new NoticeWrapper(array_slice($notices, $offset, $limit));
|
|
|
|
return $wrapper;
|
|
}
|
|
|
|
function publicStream($offset=0, $limit=20, $since_id=0, $before_id=0) {
|
|
|
|
$needAnd = FALSE;
|
|
$needWhere = TRUE;
|
|
|
|
$qry = 'SELECT * FROM notice ';
|
|
|
|
if (common_config('public', 'localonly')) {
|
|
$qry .= ' WHERE is_local = 1 ';
|
|
$needWhere = FALSE;
|
|
$needAnd = TRUE;
|
|
}
|
|
|
|
// NOTE: since_id and before_id are extensions to Twitter API
|
|
if ($since_id > 0) {
|
|
if ($needWhere)
|
|
$qry .= ' WHERE ';
|
|
if ($needAnd)
|
|
$qry .= ' AND ';
|
|
$qry .= ' notice.id > ' . $since_id . ' ';
|
|
$needAnd = FALSE;
|
|
$needWhere = FALSE;
|
|
}
|
|
|
|
if ($before_id > 0) {
|
|
if ($needWhere)
|
|
$qry .= ' WHERE ';
|
|
if ($needAnd)
|
|
$qry .= ' AND ';
|
|
$qry .= ' notice.id < ' . $before_id . ' ';
|
|
$needAnd = FALSE;
|
|
$needWhere = FALSE;
|
|
}
|
|
|
|
return Notice::getStream($qry,
|
|
'public',
|
|
$offset, $limit);
|
|
}
|
|
}
|