<?php
define('cn_NotFoundNotFoundView', 'NotFoundView');
class NotFoundView
{
    function NotFoundView($options)
    {
        $this->ontions = $options;
    }
    
    function exec(&$Doc)
    { 
		if ($this->isBot()) {
			header('HTTP/1.0 301 Moved Permanently');
			header('Location: '.BASE_URL);
			exit;
		} 
		header('HTTP/1.0 404 Not Found');
		$Doc->addContent(array('tpl' => SiteMap::getPath('NotFound/tpl/not_found_404.tpl'), 'alias' => CURR_PAGE_FULL));
		$this->sendMail();
    }
	
	function isBot()
	{
		if (empty($_SERVER['HTTP_USER_AGENT'])) {
			return false;
		}
		if (false !== ($bot_list = $this->getBotList())) {
			foreach ($bot_list as $bot_name) {
				if (false !== stripos($_SERVER['HTTP_USER_AGENT'], $bot_name)) {
					return true;
				}
			}
		}
		return false;
	}
	
	function getBotList()
	{
		$fileName = WWW_PATH.'/_sys/bot_list.txt';
		if (file_exists($fileName) && is_file($fileName)) {
			$bot_list = file($fileName);
			foreach($bot_list as $k=>&$v) {
				$v = trim($v);
			}
			$bot_list = array_filter($bot_list, 'strlen');
			if (!empty($bot_list)) {
				return $bot_list;
			}
		}
		return false;
	}
    
	function sendMail()
	{
		if (!constant('DEBUG_DEVELOPER_EMAIL_404')) {
			return false;
		}
		$emails = split('[, ;]', DEBUG_DEVELOPER_EMAIL_404);
		if (!is_array($emails) || empty($emails)) {
			return false;
		}
		$url = BASE_URL.'/'.CURR_PAGE_FULL;
		if (!empty($_SERVER['QUERY_STRING'])) {
			$url .= '?'.$_SERVER['QUERY_STRING'];
		}
		$text = 'URL: '.$url."\n\n";
		$serverVariables = array('HTTP_REFERER', 'HTTP_USER_AGENT', 'X_REQUESTED_WITH', 'REMOTE_ADDR');
		foreach ($serverVariables as $name) {
			if (!empty($_SERVER[$name])) {
				$text .= $name.': '.$_SERVER[$name]."\n\n";
			}
		}
		//$text .= print_r($_SERVER, 1);
		$subject = '404 on mncar.org';
		$headers = 'From: debug404@'.$_SERVER['SERVER_NAME'] . "\n" . 'X-Mailer: PHP/' . phpversion();

		foreach ($emails as $email) {
			mail($email, $subject, $text, $headers);
		}
	}
}