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<?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('Unable to fetch forum config', __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('Unable to write configuration cache file to cache directory. Please make sure PHP has write access to the directory \'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('Unable to fetch ban list', __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('Unable to write bans cache file to cache directory. Please make sure PHP has write access to the directory \'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', true) or error('Unable to fetch rank list', __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('Unable to write ranks cache file to cache directory. Please make sure PHP has write access to the directory \'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('Unable to fetch user group list', __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('Unable to write quickjump cache file to cache directory. Please make sure PHP has write access to the directory \'cache\'', __FILE__, __LINE__);

        $output = '<?php'."\n\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('Unable to fetch category/forum list', __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'] != '') ? ' >>>' : '';
            $output .= "\t\t\t\t\t\t\t".'<option value="'.$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);
    }
}