source: branches/rsr.v5.1/web/punbb/include/cache.php

<?php
/***********************************************************************

  Copyright (C) 2002-2005  Rickard Andersson (rickard@punbb.org)

  This file is part of PunBB.

  PunBB is free software; you can redistribute it and/or modify it
  under the terms of the GNU General Public License as published
  by the Free Software Foundation; either version 2 of the License,
  or (at your option) any later version.

  PunBB 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 General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  MA  02111-1307  USA

************************************************************************/


// Make sure no one attempts to run this script "directly"
if (!defined('PUN'))
        exit;


//
// If we are running pre PHP 4.2.0, we add our own implementation of var_export
//
if (!function_exists('var_export'))
{
        function var_export()
        {
                $args = func_get_args();
                $indent = (isset($args[2])) ? $args[2] : '';

                if (is_array($args[0]))
                {
                        $output = 'array ('."\n";

                        foreach ($args[0] as $k => $v)
                        {
                                if (is_numeric($k))
                                        $output .= $indent.'  '.$k.' => ';
                                else
                                        $output .= $indent.'  \''.str_replace('\'', '\\\'', str_replace('\\', '\\\\', $k)).'\' => ';

                                if (is_array($v))
                                        $output .= var_export($v, true, $indent.'  ');
                                else
                                {
                                        if (gettype($v) != 'string' && !empty($v))
                                                $output .= $v.','."\n";
                                        else
                                                $output .= '\''.str_replace('\'', '\\\'', str_replace('\\', '\\\\', $v)).'\','."\n";
                                }
                        }

                        $output .= ($indent != '') ? $indent.'),'."\n" : ')';
                }
                else
                        $output = $args[0];

                if ($args[1] == true)
                        return $output;
                else
                        echo $output;
        }
}


//
// Generate the config cache PHP script
//
function generate_config_cache()
{
        global $db;

        // Get the forum config from the DB
        $result = $db->query('SELECT * FROM '.$db->prefix.'config', true) or error('Impossible de retrouver la configuration des forums', __FILE__, __LINE__, $db->error());
        while ($cur_config_item = $db->fetch_row($result))
                $output[$cur_config_item[0]] = $cur_config_item[1];

        // Output config as PHP code
        $fh = @fopen(PUN_ROOT.'cache/cache_config.php', 'wb');
        if (!$fh)
                error('Impossible d\'écrire le fichier cache de configuration dans le répertoire cache. Veuillez vous assurer que PHP a l\'accÚs en écrire au répertoire \'cache\'', __FILE__, __LINE__);

        fwrite($fh, '<?php'."\n\n".'define(\'PUN_CONFIG_LOADED\', 1);'."\n\n".'$pun_config = '.var_export($output, true).';'."\n\n".'?>');

        fclose($fh);
}


//
// Generate the bans cache PHP script
//
function generate_bans_cache()
{
        global $db;

        // Get the ban list from the DB
        $result = $db->query('SELECT * FROM '.$db->prefix.'bans', true) or error('Impossible de retrouver la liste de bannissements', __FILE__, __LINE__, $db->error());

        $output = array();
        while ($cur_ban = $db->fetch_assoc($result))
                $output[] = $cur_ban;

        // Output ban list as PHP code
        $fh = @fopen(PUN_ROOT.'cache/cache_bans.php', 'wb');
        if (!$fh)
                error('Impossible d\'écrire le fichier cache de bannissements dans le répertoire cache. Veuillez vous assurer que PHP a l\'accÚs en écrire au répertoire \'cache\'', __FILE__, __LINE__);

        fwrite($fh, '<?php'."\n\n".'define(\'PUN_BANS_LOADED\', 1);'."\n\n".'$pun_bans = '.var_export($output, true).';'."\n\n".'?>');

        fclose($fh);
}


//
// Generate the ranks cache PHP script
//
function generate_ranks_cache()
{
        global $db;

        // Get the rank list from the DB
        $result = $db->query('SELECT * FROM '.$db->prefix.'ranks ORDER BY min_posts', true) or error('Impossible de retrouver la liste des rangs utilisateurs', __FILE__, __LINE__, $db->error());

        $output = array();
        while ($cur_rank = $db->fetch_assoc($result))
                $output[] = $cur_rank;

        // Output ranks list as PHP code
        $fh = @fopen(PUN_ROOT.'cache/cache_ranks.php', 'wb');
        if (!$fh)
                error('Impossible d\'écrire le fichier de cache de rangs utilisateurs dans le répertoire cache. Veuillez vous assurer que PHP a l\'accÚs en écrire au répertoire \'cache\'', __FILE__, __LINE__);

        fwrite($fh, '<?php'."\n\n".'define(\'PUN_RANKS_LOADED\', 1);'."\n\n".'$pun_ranks = '.var_export($output, true).';'."\n\n".'?>');

        fclose($fh);
}


//
// Generate quickjump cache PHP scripts
//
function generate_quickjump_cache($group_id = false)
{
        global $db, $lang_common, $pun_user;

        // If a group_id was supplied, we generate the quickjump cache for that group only
        if ($group_id !== false)
                $groups[0] = $group_id;
        else
        {
                // A group_id was now supplied, so we generate the quickjump cache for all groups
                $result = $db->query('SELECT g_id FROM '.$db->prefix.'groups') or error('Impossible de retrouver la liste des groupes utilisateurs', __FILE__, __LINE__, $db->error());
                $num_groups = $db->num_rows($result);

                for ($i = 0; $i < $num_groups; ++$i)
                        $groups[] = $db->result($result, $i);
        }

        // Loop through the groups in $groups and output the cache for each of them
        while (list(, $group_id) = @each($groups))
        {
                // Output quickjump as PHP code
                $fh = @fopen(PUN_ROOT.'cache/cache_quickjump_'.$group_id.'.php', 'wb');
                if (!$fh)
                        error('Impossible d\'écrire le fichier cache de saut rapide de forums dans le répertoire cache. Veuillez vous assurer que PHP a l\'accÚs en écrire au répertoire \'cache\'', __FILE__, __LINE__);

                $output = '<?php'."\n\n".'if (!defined(\'PUN\')) exit;'."\n".'define(\'PUN_QJ_LOADED\', 1);'."\n\n".'?>';
                $output .= "\t\t\t\t".'<form id="qjump" method="get" action="viewforum.php">'."\n\t\t\t\t\t".'<div><label><?php echo $lang_common[\'Jump to\'] ?>'."\n\n\t\t\t\t\t".'<br /><select name="id" onchange="window.location=(\'viewforum.php?id=\'+this.options[this.selectedIndex].value)">'."\n";


                $result = $db->query('SELECT c.id AS cid, c.cat_name, f.id AS fid, f.forum_name, f.redirect_url FROM '.$db->prefix.'categories AS c INNER JOIN '.$db->prefix.'forums AS f ON c.id=f.cat_id LEFT JOIN '.$db->prefix.'forum_perms AS fp ON (fp.forum_id=f.id AND fp.group_id='.$group_id.') WHERE fp.read_forum IS NULL OR fp.read_forum=1 ORDER BY c.disp_position, c.id, f.disp_position', true) or error('Impossible de retrouver la liste des catégories et des forums', __FILE__, __LINE__, $db->error());

                $cur_category = 0;
                while ($cur_forum = $db->fetch_assoc($result))
                {
                        if ($cur_forum['cid'] != $cur_category) // A new category since last iteration?
                        {
                                if ($cur_category)
                                        $output .= "\t\t\t\t\t\t".'</optgroup>'."\n";

                                $output .= "\t\t\t\t\t\t".'<optgroup label="'.pun_htmlspecialchars($cur_forum['cat_name']).'">'."\n";
                                $cur_category = $cur_forum['cid'];
                        }

                        $redirect_tag = ($cur_forum['redirect_url'] != '') ? ' &gt;&gt;&gt;' : '';
                        $output .= "\t\t\t\t\t\t\t".'<option value="'.$cur_forum['fid'].'"<?php echo ($forum_id == '.$cur_forum['fid'].') ? \' selected="selected"\' : \'\' ?>>'.pun_htmlspecialchars($cur_forum['forum_name']).$redirect_tag.'</option>'."\n";
                }

                $output .= "\t\t\t\t\t".'</optgroup>'."\n\t\t\t\t\t".'</select>'."\n\t\t\t\t\t".'<input type="submit" value="<?php echo $lang_common[\'Go\'] ?>" accesskey="g" />'."\n\t\t\t\t\t".'</label></div>'."\n\t\t\t\t".'</form>'."\n";

                fwrite($fh, $output);

                fclose($fh);
        }
}