Kleeja/includes/cache.php

<?php
/**
*
* @package Kleeja
* @copyright (c) 2007 Kleeja.net
* @license ./docs/license.txt
*
*/


//no for directly open
if (! defined('IN_COMMON'))
{
    exit;
}

//we are in cache now ..
define('IN_CACHE', true);

//make sure it's utf8 data
$SQL->set_utf8();


//
//In the future here will be a real cache class
//this codes, it's just a sample and usefull for
//some time ..
//
class cache
{
    public function get($name)
    {
        if (defined('DEV_STAGE'))
        {
            return false;
        }

        $name =  preg_replace('![^a-z0-9_]!', '_', $name);

        if (file_exists(PATH . 'cache/' . $name . '.php'))
        {
            include PATH . 'cache/' . $name . '.php';
            return  empty($data) ? false : $data;
        }
        return false;
    }

    public function exists($name): bool
    {
        $name =  preg_replace('![^a-z0-9_]!', '_', $name);
        return file_exists(PATH . 'cache/' . $name . '.php');
    }

    public function save($name, $data, $time = 86400)
    {
        $name          =  preg_replace('![^a-z0-9_]!i', '_', $name);
        $data_for_save = '<?' . 'php' . "\n";
        $data_for_save .= '//Cache file, generated for Kleeja at ' . gmdate('d-m-Y h:i A') . "\n\n";
        $data_for_save .= '//No direct opening' . "\n";
        $data_for_save .= '(!defined("IN_COMMON") ? exit("hacking attempt!") : null);' . "\n\n";
        $data_for_save .= '//return false after x time' . "\n";
        $data_for_save .= 'if(time() > ' . (time() + $time) . ') return false;' . "\n\n";
        $data_for_save .= '$data = ' . var_export($data, true) . ";\n\n//end of cache";

        try
        {
            $fd = fopen(PATH . 'cache/' . $name . '.php', 'w');
            flock($fd, LOCK_EX); // exclusive look
            fwrite($fd, $data_for_save);
            flock($fd, LOCK_UN);
            fclose($fd);
            return true;
        }
        catch (Exception $e)
        {
            return false;
        }
    }

    public function clean($name)
    {
        if (is_array($name))
        {
            foreach ($name as $n)
            {
                $this->clean($n);
            }
            return;
        }

        $name =  preg_replace('![^a-z0-9_]!i', '_', $name);
        kleeja_unlink(PATH . 'cache/' . $name . '.php');
    }
}

$cache = new cache;




//
//get config data from config table  ...
//
if (! ($config = $cache->get('data_config')))
{
    $query = [
        'SELECT'       => 'c.name, c.value',
        'FROM'         => "{$dbprefix}config c",
        'WHERE'        => 'c.dynamic = 0',
    ];

    is_array($plugin_run_result = Plugins::getInstance()->run('qr_select_config_cache', get_defined_vars())) ? extract($plugin_run_result) : null; //run hook

    $result = $SQL->build($query);
    $config = [];
    while ($row=$SQL->fetch_array($result))
    {
        $config[$row['name']] = $row['value'];
    }

    $SQL->freeresult($result);

    $cache->save('data_config', $config);
}

//
//get language terms from lang table  ...
//

if (! ($olang = $cache->get('data_lang' . $config['language'])))
{
    $olang = [];

    $query = [
        'SELECT'       => 'l.word, l.trans',
        'FROM'         => "{$dbprefix}lang l",
        'WHERE'        => "l.lang_id='" . $SQL->escape($config['language']) . "'",
    ];

    is_array($plugin_run_result = Plugins::getInstance()->run('qr_select_lang_cache', get_defined_vars())) ? extract($plugin_run_result) : null; //run hook

    $result = $SQL->build($query);

    while ($row=$SQL->fetch_array($result))
    {
        $olang[$row['word']] = $row['trans'];
    }

    $SQL->freeresult($result);

    $cache->save('data_lang' . $config['language'], $olang);
}


//
//stats to cache
//
if (! ($stats = $cache->get('data_stats')))
{
    $query = [
        'SELECT'    => 's.files, s.imgs, s.sizes, s.users, s.last_file, s.last_f_del, s.last_google' .
                        ', s.last_bing, s.google_num, s.bing_num, s.lastuser',
        'FROM'        => "{$dbprefix}stats s"
    ];

    is_array($plugin_run_result = Plugins::getInstance()->run('qr_select_stats_cache', get_defined_vars())) ? extract($plugin_run_result) : null; //run hook

    $result = $SQL->build($query);

    while ($row=$SQL->fetch_array($result))
    {
        $stats = [
            'stat_files'                => $row['files'],
            'stat_imgs'                 => $row['imgs'],
            'stat_sizes'                => $row['sizes'],
            'stat_users'                => $row['users'],
            'stat_last_file'            => $row['last_file'],
            'stat_last_f_del'           => $row['last_f_del'],
            'stat_last_google'          => $row['last_google'],
            'stat_last_bing'            => $row['last_bing'],
            'stat_google_num'           => $row['google_num'],
            'stat_bing_num'             => $row['bing_num'],
            'stat_last_user'            => $row['lastuser']
        ];

        is_array($plugin_run_result = Plugins::getInstance()->run('while_fetch_stats_in_cache', get_defined_vars())) ? extract($plugin_run_result) : null; //run hook
    }

    $SQL->freeresult($result);

    //save the stats for hour and then refresh them
    $cache->save('data_stats', $stats, 3600);

    //also, save the data for the charts later
    $query = [
        'SELECT'       => 'f.filter_uid',
        'FROM'         => "{$dbprefix}filters f",
        'WHERE'        => "f.filter_type='stats_for_acp' AND f.filter_uid = '" . date('d-n-Y') . "'"
    ];

    $result    = $SQL->build($query);

    //if already there is stats for this day, just update it, if not insert a new one
    if ($SQL->num_rows($result))
    {
        $f_query    = [
            'UPDATE'       => "{$dbprefix}filters",
            'SET'          => "filter_value='" . implode(':', [$stats['stat_files'], $stats['stat_imgs'], $stats['stat_sizes']]) . "'",
            'WHERE'        => "filter_type='stats_for_acp' AND filter_uid = '" . date('d-n-Y') . "'"
        ];
    }
    else
    {
        $f_query = [
            'INSERT'       => 'filter_uid, filter_type ,filter_value ,filter_time',
            'INTO'         => "{$dbprefix}filters",
            'VALUES'       => "'" . date('d-n-Y') . "', 'stats_for_acp', '" . implode(':', [$stats['stat_files'], $stats['stat_imgs'], $stats['stat_sizes']]) . "', " . time()
        ];
    }

    $SQL->build($f_query);
}


//make them as seperated vars
extract($stats);
unset($stats);

//
//get banned ips data from stats table  ...
//
if (! ($banss = $cache->get('data_ban')))
{
    $query = [
        'SELECT'       => 's.ban',
        'FROM'         => "{$dbprefix}stats s"
    ];

    is_array($plugin_run_result = Plugins::getInstance()->run('qr_select_ban_cache', get_defined_vars())) ? extract($plugin_run_result) : null; //run hook
    $result = $SQL->build($query);

    $row  = $SQL->fetch_array($result);
    $ban1 = $row['ban'];
    $SQL->freeresult($result);

    $banss = [];

    if (! empty($ban1) || $ban1 != ' '|| $ban1 != '  ')
    {
        //seperate ips ..
        $ban2 = explode('|', $ban1);

        for ($i=0; $i<sizeof($ban2); $i++)
        {
            $banss[$i] = $ban2[$i];
        }
    }



    unset($ban1, $ban2, $gt);

    $cache->save('data_ban', $banss);
}

//
//get rules data from stats table  ...
//
if (! ($ruless = $cache->get('data_rules')))
{
    $query = [
        'SELECT'       => 's.rules',
        'FROM'         => "{$dbprefix}stats s"
    ];

    is_array($plugin_run_result = Plugins::getInstance()->run('qr_select_rules_cache', get_defined_vars())) ? extract($plugin_run_result) : null; //run hook
    $result = $SQL->build($query);

    $row    = $SQL->fetch_array($result);
    $ruless = $row['rules'];
    $SQL->freeresult($result);

    $cache->save('data_rules', $ruless);
}


//
//get ex-header-footer data from stats table  …
//
if (! ($extras = $cache->get('data_extra')))
{
    $query = [
        'SELECT'       => 's.ex_header, s.ex_footer',
        'FROM'         => "{$dbprefix}stats s"
    ];

    is_array($plugin_run_result = Plugins::getInstance()->run('qr_select_extra_cache', get_defined_vars())) ? extract($plugin_run_result) : null; //run hook
    $result = $SQL->build($query);

    $row = $SQL->fetch_array($result);

    $extras = [
        'header' => $row['ex_header'],
        'footer' => $row['ex_footer']
    ];

    $SQL->freeresult($result);

    $cache->save('data_extra', $extras);
}


//
//Get groups data
//
if (! ($d_groups = $cache->get('data_groups')))
{
    $d_groups = [];

    //data
    $query = [
        'SELECT'         => 'g.*',
        'FROM'           => "{$dbprefix}groups g",
        'ORDER_BY'       => 'g.group_id ASC',
    ];

    is_array($plugin_run_result = Plugins::getInstance()->run('qr_select_groups_cache', get_defined_vars())) ? extract($plugin_run_result) : null; //run hook
    $result = $SQL->build($query);

    //Initiating
    while ($row=$SQL->fetch_array($result))
    {
        $d_groups[$row['group_id']]['data']    = $row;
        $d_groups[$row['group_id']]['configs'] = [];
        $d_groups[$row['group_id']]['acls']    = [];
        $d_groups[$row['group_id']]['exts']    = [];
    }
    $SQL->freeresult($result);

    //configs
    $query = [
        'SELECT'         => 'g.group_id, g.name, g.value',
        'FROM'           => "{$dbprefix}groups_data g",
        'ORDER_BY'       => 'g.group_id ASC',
    ];

    is_array($plugin_run_result = Plugins::getInstance()->run('qr_select_groups_data_cache', get_defined_vars())) ? extract($plugin_run_result) : null; //run hook
    $result = $SQL->build($query);

    while ($row=$SQL->fetch_array($result))
    {
        $d_groups[$row['group_id']]['configs'][$row['name']] = $row['value'];
    }
    $SQL->freeresult($result);

    //acl
    $query2 = [
        'SELECT'         => 'g.group_id, g.acl_name, g.acl_can',
        'FROM'           => "{$dbprefix}groups_acl g",
        'ORDER_BY'       => 'g.group_id ASC',
    ];

    is_array($plugin_run_result = Plugins::getInstance()->run('qr_select_groups_acls_cache', get_defined_vars())) ? extract($plugin_run_result) : null; //run hook
    $result2 = $SQL->build($query2);

    while ($row=$SQL->fetch_array($result2))
    {
        $d_groups[$row['group_id']]['acls'][$row['acl_name']] = (int) $row['acl_can'];
    }
    $SQL->freeresult($result2);

    //exts
    $query3 = [
        'SELECT'         => 'g.group_id, g.ext, g.size',
        'FROM'           => "{$dbprefix}groups_exts g",
        'ORDER_BY'       => 'g.group_id ASC',
    ];

    is_array($plugin_run_result = Plugins::getInstance()->run('qr_select_groups_exts_cache', get_defined_vars())) ? extract($plugin_run_result) : null; //run hook
    $result3 = $SQL->build($query3);

    while ($row=$SQL->fetch_array($result3))
    {
        $d_groups[$row['group_id']]['exts'][$row['ext']] = (int) $row['size'];
    }
    $SQL->freeresult($result3);

    unset($query, $query2, $query3, $result, $result2, $result3);

    $cache->save('data_groups', $d_groups);
}


// ummm, does this useful here
is_array($plugin_run_result = Plugins::getInstance()->run('in_cache_page', get_defined_vars())) ? extract($plugin_run_result) : null; //run hook