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<?php
/**
*
* @package Support Toolkit
* @version $Id$
* @copyright (c) 2009 phpBB Group
* @license http://opensource.org/licenses/gpl-license.php GNU Public License
*
*/

/**
 * @ignore
 */
if (!defined('IN_PHPBB'))
{
    exit;
}

// Load functions_admin.php if required
if (!function_exists('filelist'))
{
    include(PHPBB_ROOT_PATH . 'includes/functions_admin.' . PHP_EXT);
}

class critical_repair
{
    /**
    * @var Array Tools that are autoran
    */
    var $autorun_tools = array();

    /**
    * @var Array Tools that are manually invoked
    */
    var $manual_tools = array();

    /**
    * @var string Location for the tools
    */
    var $tool_path;

    /**
    * Initialise critical repair.
    * This method loads all critical repair tools
    * @return void
    */
    function initialise()
    {
        $this->tool_path = STK_ROOT_PATH . 'includes/critical_repair/';
        $filelist = filelist($this->tool_path, '', PHP_EXT);

        foreach ($filelist as $directory => $tools)
        {
            if ($directory != 'autorun/')
            {
                if (sizeof($tools))
                {
                    foreach ($tools as $tool)
                    {
                        $this->manual_tools[] = substr($tool, 0, strpos($tool, '.'));
                    }
                }
            }
            else
            {
                if (sizeof($tools))
                {
                    foreach ($tools as $tool)
                    {
                        $this->autorun_tools[] = substr($tool, 0, strpos($tool, '.'));
                    }
                }
            }
        }

        return true;
    }

    /**
    * Run a manual critical repair tol
    * @param    String    $tool The name (file/class) of the tool
    * @return    mixed    The result of the tool
    */
    function run_tool($tool)
    {
        if (!(in_array($tool, $this->manual_tools)))
        {
            return false;
        }

        include($this->tool_path . $tool . '.' . PHP_EXT);

        $tool_name = 'erk_' . $tool;
        $run_tool = new $tool_name();
        return $run_tool->run();
    }

    /**
    * Run all the automatic critical repair tools
    * @return void
    */
    function autorun_tools()
    {
        foreach ($this->autorun_tools as $tool)
        {
            include($this->tool_path . 'autorun/' . $tool . '.' . PHP_EXT);

            $tool_name = 'erk_' . $tool;
            $run_tool = new $tool_name();
            $run_tool->run();
            unset($run_tool);
        }

        return true;
    }

    /**
     * Trigger an error message, this method *must* be called when an ERK tool
     * encounters an error. You can not rely on msg_handler!
     * @param    String|Array    $msg                The error message or an string array containing multiple lines
     * @param    Boolean            $redirect_stk        Show a backlink to the STK, otherwise to the ERK
     * @return    void
     */
    function trigger_error($msg, $redirect_stk = false)
    {
        if (!is_array($msg))
        {
            $msg = array($msg);
        }

        // Send headers
        header('HTTP/1.1 503 Service Unavailable');
        header('Content-type: text/html; charset=UTF-8');

        // Build the page
        ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" dir="ltr">
    <head>
        <meta http-equiv="content-type" content="text/html; charset=utf-8" />
        <meta http-equiv="content-style-type" content="text/css" />
        <meta http-equiv="imagetoolbar" content="no" />
        <title>Support Toolkit :: Emergency Repair Kit</title>
        <link href="<?php echo STK_ROOT_PATH; ?>style/style.css" rel="stylesheet" type="text/css" media="screen" />
        <link href="<?php echo STK_ROOT_PATH; ?>style/erk_style.css" rel="stylesheet" type="text/css" media="screen" />
    </head>
    <body id="errorpage">
        <div id="wrap">
            <div id="page-header">
                <p>
                    <?php
                    if ($redirect_stk)
                    {
                        echo '<a href="' . STK_ROOT_PATH . '">Support Toolkit index</a> &bull; ';
                    }
                    else
                    {
                        echo '<a href="' . STK_ROOT_PATH . 'erk.php">Emergency Repair Toolkit index</a> &bull; ';
                    }
                    ?>
                    <a href="<?php echo PHPBB_ROOT_PATH; ?>">Board index</a>
                </p>
            </div>
            <div id="page-body">
                <div id="acp">
                    <div class="panel">
                        <span class="corners-top"><span></span></span>
                            <div id="content">
                                <h1>Emergency Repair Kit</h1>
                                <?php
                                foreach ($msg as $m)
                                {
                                    echo "<p>{$m}</p>";
                                }
                                ?>
                                <p>
                                    <?php
                                    if ($redirect_stk)
                                    {
                                        echo 'Click <a href="' . STK_ROOT_PATH . '">here</a> to reload the STK';
                                    }
                                    else
                                    {
                                        echo 'Click <a href="' . STK_ROOT_PATH . 'erk.php">here</a> to reload the ERK';
                                    }
                                    ?>
                                </p>
                            </div>
                        <span class="corners-bottom"><span></span></span>
                    </div>
                </div>
            </div>
            <div id="page-footer">
                Support Toolkit &copy; <a href="http://www.phpbb.com/">phpBB Group</a><br />
                Powered by <a href="http://www.phpbb.com/">phpBB</a>&reg; Forum Software &copy; phpBB Group
            </div>
        </div>
    </body>
</html>
<?php
        // Make sure we exit, can't use any phpBB stuff here
        exit;
    }
}