* Webserver system icons

 */

define('HTTPD_ICON_SCRIPT', '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');

define('HTTPD_ICON_FOLDER', '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');

define('HTTPD_ICON_FILE', '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');

/**

   * List of filenames or handlers used when a directory listing is requested

   * @var array

   */

  var $directory_index = array('index.html', 'index.htm', 'index', 'default.html', 'default.htm');

  /**

   * UUID for this server instance

   * @var string

   */

  var $uuid = '00000000-0000-0000-0000-000000000000';

  /**

   * Switch to track whether a scriptlet is running. If it is, send_http_error() does more than normal.

   * @var bool

   */

  var $in_scriptlet = false;

  /**

   * Switch to track whether headers have been sent or not.

   * @var bool

   */

  var $headers_sent = false;

  /**

   * Switch to track if the socket is bound and thus needs to be freed or not

   * @var bool

   */

  var $socket_initted = false;

  /**

   * @param int If port is under 1024, specify a user ID/name to switch to here

   * @param int If port is under 1024, specify a group ID/name to switch to here

  function __construct($address = '127.0.0.1', $port = 8080, $targetuser = null, $targetgroup = null)

    // make sure we're not running as root

    // note that if allow_root is true, you must specify a UID/GID (or user/group) to switch to once the socket is bound

    $allow_root = ( $port < 1024 ) ? true : false;

    if ( function_exists('posix_geteuid') )

    {

      $euid = posix_geteuid();

      $egid = posix_getegid();

      $username = posix_getpwuid($euid);

      $username = $username['name'];

      $group = posix_getgrgid($egid);

      $group = $group['name'];

      if ( $euid == 0 && !$allow_root )

      {

        // running as root but not on a privileged port - die for security

        burnout("Running as superuser (user \"$username\" and group \"$group\"). This is not allowed for security reasons.");

      }

      else if ( $euid == 0 && $allow_root )

      {

        // running as root and port below 1024, so notify of the switch and verify that a target UID and GID were passed

        if ( $targetuser === null || $targetgroup === null )

        {

          // no target user/group specified

          burnout("Must specify a target user and group when running server as root");

        }

        // get info about target user/group

        if ( is_string($targetuser) )

        {

          $targetuser = posix_getpwnam($targetuser);

          $targetuser = $targetuser['uid'];

        }

        if ( is_string($targetgroup) )

        {

          $targetgroup = posix_getgrnam($targetgroup);

          $targetgroup = $targetgroup['uid'];

        }

        // make sure all info is valid

        if ( !is_int($targetuser) || !is_int($targetgroup) )

        {

          burnout('Invalid user or group specified');

        }

        $userinfo = posix_getpwuid($targetuser);

        $groupinfo = posix_getgrgid($targetgroup);

        if ( function_exists('status') )

          status("Will switch to user \"{$userinfo['name']}\" and group \"{$groupinfo['name']}\" shortly after binding to socket");

      }

      else if ( $allow_root && $euid > 0 )

      {

        burnout("Must be superuser to bind to ports below 1024");

      }

    }

    $socket_do_root = ( $allow_root ) ? function_exists('posix_geteuid') : false;

    $this->sock = @socket_create(AF_INET, SOCK_STREAM, getprotobyname('tcp'));

    $result = @socket_bind($this->sock, $address, $port);

    $this->socket_initted = true;

    $result = @socket_listen($this->sock, SOMAXCONN);

    // if running as root and we made it here, switch credentials

    if ( $socket_do_root )

    {

      posix_setuid($targetuser);

      posix_setgid($targetgroup);

      posix_setegid($targetgroup);

      posix_seteuid($targetuser);

      if ( function_exists('status') )

        status('Successfully switched user ID');

    }

    // create a UUID

    $uuid_base = md5(microtime() . ( function_exists('mt_rand') ? mt_rand() : rand() ));

    $this->uuid = substr($uuid_base, 0,  8) . '-' .

                  substr($uuid_base, 8,  4) . '-' .

                  substr($uuid_base, 12, 4) . '-' .

                  substr($uuid_base, 16, 4) . '-' .

                  substr($uuid_base, 20, 20);

    if ( !defined('HTTPD_WS_CHILD') && $this->socket_initted )

      if ( function_exists('status') )

        status('WebServer: destroying socket');

      // http://us3.php.net/manual/en/function.socket-bind.php

      if ( !@socket_set_option($this->sock, SOL_SOCKET, SO_REUSEADDR, 1) )

      {

        echo socket_strerror(socket_last_error($sock)) . "\n";

      }

        if ( function_exists('status') )

          status('Exiting child process');

          @socket_set_option($this->sock, SOL_SOCKET, SO_REUSEADDR, 1);

      $this->headers_sent = false;

      $this->in_scriptlet = false;

      // parse authorization, if any

      if ( isset($_SERVER['PHP_AUTH_USER']) )

      {

        unset($_SERVER['PHP_AUTH_USER'], $_SERVER['PHP_AUTH_PW']);

      }

      // anything on POST?

      // set some server vars

      // get remote IP and port

      // init handler

      $handler = false;

        // user requested the root (/). If there's a default document, use that; else, see if we can do a directory listing

        if ( !$this->default_document && $this->allow_dir_list )

        {

          // we can list directories and this was requested by the user, so list it out

          $handler = array('type' => 'rootdir');

        }

      // hook for the special UUID handler

      if ( $uri_parts[0] === $this->uuid && !$handler )

      {

        $handler = array('type' => 'sysuuid');

      }

      if ( !$handler )

        for ( $i = count($uri_parts) - 1; $i >= 0; $i-- )

          $handler_test = implode('/', $uri_parts);

          if ( isset($this->handlers[$handler_test]) )

          {

            $handler = $this->handlers[$handler_test];

            $handler['id'] = $handler_test;

            break;

          }

          unset($uri_parts[$i]);

        // try to make a fakie

        if ( $this->check_for_handler_children($uri) )

        {

          $handler = array(

            'type' => 'folder',

            'dir' => "/{$this->uuid}/__fakie",

            'id' => $uri