f246b8f2d7
noticesWithFriends is turning out to be one of our most expensive queries. The join is costly, and this method is hit over and over and over by desktop clients and other API users. So, I've added a first pass at caching the results. I store a "window" of notices -- equal to the first 3 pages of notices, plus one for pagination -- in the memcached cache. If with-friends notices are requests, I fetch the whole window out of the cache and grab the slice requested. If the requested notices are outside the window, we just do the query. If there's nothing in the cache, we request the window and store it, then return a slice. I had to add a NoticeWrapper class that works like DB_DataObject (well, just the fetch() part...) but just holds an array of notices instead of a DB cursor. Finally, saving a new notice blows away the caches for subscribed users. darcs-hash:20080915065616-84dde-1b1e814c2294498a10b763b779cbb62c3f96aa84.gz
142 lines
4.2 KiB
PHP
142 lines
4.2 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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define('LACONICA_VERSION', '0.5.0');
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define('AVATAR_PROFILE_SIZE', 96);
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define('AVATAR_STREAM_SIZE', 48);
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define('AVATAR_MINI_SIZE', 24);
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define('MAX_AVATAR_SIZE', 256 * 1024);
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define('NOTICES_PER_PAGE', 20);
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define_syslog_variables();
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# append our extlib dir as the last-resort place to find libs
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set_include_path(get_include_path() . PATH_SEPARATOR . INSTALLDIR . '/extlib/');
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# global configuration object
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require_once('PEAR.php');
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require_once('DB/DataObject.php');
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require_once('DB/DataObject/Cast.php'); # for dates
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require_once(INSTALLDIR.'/lib/language.php');
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// default configuration, overwritten in config.php
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$config =
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array('site' =>
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array('name' => 'Just another Laconica microblog',
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'server' => 'localhost',
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'theme' => 'default',
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'path' => '/',
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'logfile' => NULL,
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'fancy' => false,
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'locale_path' => INSTALLDIR.'/locale',
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'language' => 'en_US',
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'languages' => get_all_languages(),
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'email' =>
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array_key_exists('SERVER_ADMIN', $_SERVER) ? $_SERVER['SERVER_ADMIN'] : NULL,
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'broughtby' => NULL,
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'timezone' => 'UTC',
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'broughtbyurl' => NULL,
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'closed' => false),
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'syslog' =>
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array('appname' => 'laconica', # for syslog
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'priority' => 'debug'), # XXX: currently ignored
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'queue' =>
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array('enabled' => false),
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'license' =>
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array('url' => 'http://creativecommons.org/licenses/by/3.0/',
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'title' => 'Creative Commons Attribution 3.0',
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'image' => 'http://i.creativecommons.org/l/by/3.0/88x31.png'),
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'mail' =>
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array('backend' => 'mail',
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'params' => NULL),
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'nickname' =>
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array('blacklist' => array()),
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'avatar' =>
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array('server' => NULL),
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'public' =>
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array('localonly' => true),
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'theme' =>
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array('server' => NULL),
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'xmpp' =>
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array('enabled' => false,
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'server' => 'INVALID SERVER',
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'port' => 5222,
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'user' => 'update',
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'encryption' => true,
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'resource' => 'uniquename',
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'password' => 'blahblahblah',
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'host' => NULL, # only set if != server
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'debug' => false, # print extra debug info
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'public' => array()), # JIDs of users who want to receive the public stream
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'tag' =>
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array('dropoff' => 864000.0),
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'daemon' =>
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array('piddir' => '/var/run',
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'user' => false,
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'group' => false),
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'memcached' =>
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array('enabled' => false,
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'server' => 'localhost',
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'port' => 11211)
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);
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$config['db'] = &PEAR::getStaticProperty('DB_DataObject','options');
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$config['db'] =
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array('database' => 'YOU HAVE TO SET THIS IN config.php',
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'schema_location' => INSTALLDIR . '/classes',
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'class_location' => INSTALLDIR . '/classes',
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'require_prefix' => 'classes/',
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'class_prefix' => '',
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'mirror' => NULL,
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'db_driver' => 'DB', # XXX: JanRain libs only work with DB
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'quote_identifiers' => false);
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if (function_exists('date_default_timezone_set')) {
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/* Work internally in UTC */
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date_default_timezone_set('UTC');
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}
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require_once(INSTALLDIR.'/config.php');
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require_once('Validate.php');
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require_once('markdown.php');
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require_once(INSTALLDIR.'/lib/util.php');
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require_once(INSTALLDIR.'/lib/action.php');
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require_once(INSTALLDIR.'/lib/theme.php');
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require_once(INSTALLDIR.'/lib/mail.php');
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require_once(INSTALLDIR.'/lib/subs.php');
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function __autoload($class) {
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if ($class == 'OAuthRequest') {
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require_once('OAuth.php');
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} else if (file_exists(INSTALLDIR.'/classes/' . $class . '.php')) {
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require_once(INSTALLDIR.'/classes/' . $class . '.php');
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}
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}
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