<?php

/**
* File:  MassDelTrackback.Admin.class.php
*
* Mass delete trackback spam
*
* Copyright (C) 2004-2008 by the following authors:
*
* @author   Tom Willett     tomw AT pigstye DOT net
* @author   Dirk Haun       dirk AT haun-online DOT de
*
* Licensed under GNU General Public License
*
* @package Spam-X
* @subpackage Modules
*/

if (strpos(strtolower($_SERVER['PHP_SELF']), 'massdeltrackback.admin.class.php') !== false) {
    die('This file can not be used on its own!');
}

/**
* Include Abstract Base Class
*/
require_once $_CONF['path'] . 'plugins/spamx/BaseAdmin.class.php';

/**
* MassDelTrackback class: Mass-delete trackbacks
*
* @package Spam-X
*
*/
class MassDelTrackback extends BaseAdmin
{
    public function __construct()
    {
        global $LANG_SX00;

        $this->moduleName = '';
        $this->command    = 'MassDelTrackback';
        $this->titleText  = '';
        $this->linkText   = $LANG_SX00['mass_delete_trackback_spam'];
    }

    public function display()
    {
        global $_CONF, $_TABLES, $LANG_SX00;

        $display = $LANG_SX00['masstb'];

        $act = '';

        if (isset($_POST['action'])) {
            $act = COM_applyFilter($_POST['action']);
        }

        $lmt = 0;

        if (isset($_POST['limit'])) {
            $lmt = COM_applyFilter($_POST['limit'], true);
        }

        if (($act == $LANG_SX00['deletespam']) && ($lmt > 0) &&
                SEC_checkToken()) {
            $numc = 0;
            $spamx_path = $_CONF['path'] . 'plugins/spamx/';

            if ($dir = @opendir($spamx_path)) {
                while (($file = readdir($dir)) !== false) {
                    if (is_file($spamx_path . $file)) {
                        if (substr($file, -18) == '.Examine.class.php') {
                            $tmp = str_replace('.Examine.class.php', '', $file);
                            $Spamx_Examine[] = $tmp;

                            require_once $spamx_path . $file;
                        }
                    }
                }

                closedir($dir);
            }

            require_once $_CONF['path_system'] . 'lib-trackback.php';

            $result = DB_query("SELECT cid,sid,type,url,title,blog,excerpt,ipaddress,UNIX_TIMESTAMP(date) AS date FROM {$_TABLES['trackback']} ORDER BY date DESC LIMIT $lmt");
            $nrows = DB_numRows($result);

            for ($i = 0; $i < $nrows; $i++) {
                $A = DB_fetchArray($result);
                $comment = TRB_formatComment($A['url'], $A['title'],
                                             $A['blog'], $A['excerpt']);

                foreach ($Spamx_Examine as $Examine) {
                    $EX = new $Examine;

                    if (method_exists($EX, 'reexecute')) {
                        $res = $EX->reexecute($comment, $A['date'], $A['ipaddress'], $A['type']);
                    } else {
                        $res = $EX->execute($comment);
                    }

                    if ($res == PLG_SPAM_FOUND) {
                        break;
                    }
                }

                if ($res == PLG_SPAM_FOUND) {
                    $this->deltrackback($A['cid'], $A['sid'], $A['type']);
                    $numc++;
                }
            }

            $display .= '<p>' . $numc . $LANG_SX00['comdel'] . '</p>' . LB;
        } else {
            $token = SEC_createToken();
            $display .= '<form method="post" action="'
                     . $_CONF['site_admin_url']
                     . '/plugins/spamx/index.php?command=MassDelTrackback"><div>';
            $display .= $LANG_SX00['numtocheck'] . '&nbsp;&nbsp;&nbsp;'
                     . ' <select name="limit">' . LB;
            $display .= '<option value="10">10</option>'
                     .  '<option value="50">50</option>'
                     .  '<option value="100" selected="selected">100</option>'
                     .  '<option value="200">200</option>'
                     .  '<option value="300">300</option>'
                     .  '<option value="400">400</option>';
            $display .= '</select>' . LB;
            $display .= $LANG_SX00['note1'];
            $display .= $LANG_SX00['note2'];
            $display .= $LANG_SX00['note3'];
            $display .= $LANG_SX00['note4'];
            $display .= $LANG_SX00['note5'];
            $display .= $LANG_SX00['note6'] . LB;
            $display .= '<input type="submit" name="action" value="'
                     . $LANG_SX00['deletespam'] . '"' . XHTML . '>' . LB;
            $display .= '<input type="hidden" name="' . CSRF_TOKEN
                     . "\" value=\"{$token}\"" . XHTML . '>' . LB;
            $display .= '</div></form>' . LB;
        }

        return $display;
    }

    /**
    * Deletes a given trackback comment
    *
    * @param    int         $cid    Comment ID
    * @param    string      $sid    ID of object comment belongs to
    * @param    string      $type   Comment type (e.g. article, poll, etc)
    * @return   void
    *
    */
    public function deltrackback($cid, $sid, $type)
    {
        global $_TABLES, $LANG_SX00;

        if (TRB_allowDelete($sid, $type)) {
            TRB_deleteTrackbackComment($cid);

            if ($type === 'article') {
                $tbcount = DB_count($_TABLES['trackback'],
                                    array('type', 'sid'),
                                    array('article', $sid));
                DB_query("UPDATE {$_TABLES['stories']} SET trackbacks = $tbcount WHERE sid = '$sid'");
            }

            SPAMX_log($LANG_SX00['spamdeleted']);
        }
    }
}

?>
