<?php

/**
 * Sample plugin to try out some hooks.
 * This performs an automatic login if accessed from localhost
 *
 * @license GNU GPLv3+
 * @author Thomas Bruederli
 */
class autologon_ext extends rcube_plugin
{
  public $task = 'login';
  private $debug = true;
  private $autologon_data = array();

  function init()
  {
    $rcmail = rcube::get_instance();
    $this->load_config();
    $this->debug = $rcmail->config->get('autologon_debug');
    $this->autologon_data = $rcmail->config->get('autologon_data');

    $this->add_hook('startup', array($this, 'startup'));
    $this->add_hook('authenticate', array($this, 'authenticate'));
  }

  function startup($args)
  {
    // change action to login
    if (empty($_SESSION['user_id']) && !empty($_GET['_autologin']) && $this->is_valid_host())
      $args['action'] = 'login';

    return $args;
  }

  function authenticate($args)
  {
    if (!empty($_GET['_autologin']) && $this->is_valid_host()) {
      $args['user'] = $this->autologon_data[$_SERVER['REMOTE_ADDR']]['user'];
      $args['pass'] = $this->autologon_data[$_SERVER['REMOTE_ADDR']]['pass'];
      $args['host'] = ($this->autologon_data[$_SERVER['REMOTE_ADDR']]['host'] ? $this->autologon_data[$_SERVER['REMOTE_ADDR']]['host'] : 'localhost');
      $args['cookiecheck'] = false;
      $args['valid'] = true;
    }

    return $args;
  }

  function is_valid_host()
  {
    if ($this->debug) {
      ob_start();
      print_r($this->autologon_data[$_SERVER['REMOTE_ADDR']]);
      if ($this->debug) write_log('autologon_ext', 'autologon_data for '.$_SERVER['REMOTE_ADDR'].': '.ob_get_contents());
      ob_end_clean();
    }
    return is_array($this->autologon_data[$_SERVER['REMOTE_ADDR']]);
  }

}