<?php
/**
 * @copyright Intermesh 2004
 * @author Merijn Schering <mschering@intermesh.nl>
 * @version 2.13 Release date: 1 March 2005
 * @version $Revision: 1.20 $ $Date: 2005/04/28 09:25:24 $
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2 of the License, or (at your
 * option) any later version.
 
 * @package Framework
 */

include_once("avw_session.php");
include_once("config.php");
/**
 * This class holds the main configuration options of Group-Office
 * Don't modify this file. The values defined here are just default values.
 * They are overwritten by the configuration options in local/config.php. 
 * To edit these options use install.php.
 *
 * @author   Merijn Schering <mschering@intermesh.nl>
 * @since    Group-Office 1.0
 * 
 * @package Framework
 * @subpackage Configuration
 * 
 * @access public
 */
class GO_CONFIG
{
	#FRAMEWORK VARIABLES

	/**
   * The Group-Office version number
   *
   * @var     string
   * @access  public
   */
  var $version = '2.13';


  /**
   * Enable debugging mode
   *
   * @var     bool
   * @access  public
   */
  var $debug = false;

  /**
   * Enable syslog
   *
   * @var     bool
   * @access  public
   */
   
  var $log = false;

  /**
   * Slash to use '/' for linux and '\\' for windows
   *
   * @var     string
   * @access  public
   */
  var $slash = '/';

  /**
   * Default language
   *
   * @var     string
   * @access  public
   */
  var $language = 'en';
  
  /**
   * Default theme
   *
   * @var     string
   * @access  public
   */
  var $theme = 'Default';

  /**
   * Enable theme switching by users
   *
   * @var     bool
   * @access  public
   */
  var $allow_themes = true;

  /**
   * Enable password changing by users
   *
   * @var     bool
   * @access  public
   */
  var $allow_password_change = true;
  
  /**
   * Enable user registration by everyone
   *
   * @var     bool
   * @access  public
   */
  var $allow_registration = false;
  
  /**
   * Grant read permissions for these modules to new self-registered users.
   * Module names are seperated by a comma.
   *
   * @var     string
   * @access  public
   */
  var $register_modules_read = "calendar,addressbook,email,todos,summary,filesystem";
  
  /**
   * Grant write permissions for these modules to new self-registered users.
   * Module names are seperated by a comma.
   *
   * @var     string
   * @access  public
   */
  var $register_modules_write = "";
  

  /**
   * Add self-registered users to these user groups
   * Group names are seperated by a comma.
   *
   * @var     string
   * @access  public
   */
  var $register_user_groups = "";
  
  
  /**
   * Relative hostname with slash on both start and end
   *
   * @var     string
   * @access  public
   */
  var $host = '/avw/navy/go/';

  /**
   * Full URL to reach Group-Office with slash on end
   *
   * @var     string
   * @access  public
   */
  var $full_url = '';

  /**
   * Title of Group-Office
   *
   * @var     string
   * @access  public
   */
  var $title = 'AVW';

  /**
   * The e-mail of the webmaster
   *
   * @var     string
   * @access  public
   */
  var $webmaster_email = 'webmaster@example.com';

  /**
   * The path to the root of Group-Office with slash on end
   * 
   * @var     string
   * @access  public
   */
  var $root_path = '';

  /**
   * The path to store temporary files with a slash on end
   * Leave to ../ for installation
   *
   * @var     string
   * @access  public
   */
  var $tmpdir = '';

  /**
   * The maximum number of users
   *
   * @var     int
   * @access  public
   */
  var $max_users = 0;

  /**
   * Refresh interval in seconds for the mail & event checker
   *
   * @var     string
   * @access  public
   */
  var $refresh_rate = '60';

  /**
   * The login screen to display
   *
   * @var     string
   * @access  public
   */
  var $login_screen = 'Default';

  /**
   * zed
   */
  var $login_page = 'http://www.orkut.com';

	#database configuration
  /**
   * The database type to use. Currently only MySQL is supported
   *
   * @var     string
   * @access  public
   */
  var $db_type = 'mysql';
  /**
   * The host of the database
   *
   * @var     string
   * @access  public
   */
  var $db_host = 'localhost';
  /**
   * The name of the database
   *
   * @var     string
   * @access  public
   */
  var $db_name = 'groupoffice';
  /**
   * The username to connect to the database
   *
   * @var     string
   * @access  public
   */
  var $db_user = 'groupoffice';
  /**
   * The password to connect to the database
   *
   * @var     string
   * @access  public
   */
  var $db_pass = '';

 	/** Path to local installation specific files
   * 
   * @var     string
   * @access  public
   */
  var $local_path = '';
  
  /** URL to local installation specific files
   * 
   * @var     string
   * @access  public
   */
  var $local_url = '';

  /**
   * The path to external authentication sources file
   * 
   * @var     string
   * @access  public
   */
  var $auth_sources = '';

#FILE BROWSER VARIABLES
  /**
   * The path to the mime.types file in Linux
   *
   * @var     string
   * @access  public
   */
  var $mime_types_file = '/etc/mime.types';
  /**
   * The path to the location where the files of the file browser module are stored
   *
   * This path should NEVER be inside the document root of the webserver
   * this directory should be writable by apache. Also choose a partition that
   * has enough diskspace.
   *
   * @var     string
   * @access  public
   */
  var $file_storage_path = '/home/groupoffice/';
  /**
   * The permissions mode to use when creating files and folders
   *
   * @var     hexadecimal
   * @access  public
   */
  var $create_mode = '0755';
  /**
   * The maximum file size the filebrowser attempts to upload. Be aware that 
   * the php.ini file must be set accordingly (http://www.php.net).
   *
   * @var     string
   * @access  public
   */
  var $max_file_size = '100000000';
  /**
   * The maximum amount of diskspace that a user may use in Kb 
   *
   * @var     int
   * @access  public
   */
  var $user_quota = 0;	# kb

#WebDAV VARIABLES
  /**
   * Enable WebDAV?
   *
   * @var     bool
   * @access  public
   */
  var $dav_switch = false;
  /**
   * Path to Apache DAV library with slash on end
   *
   * @var     string
   * @access  public
   */
  var $dav_apachedir = '';
  /**
   * Path to Apache drafts with slash on end
   *
   * @var     string
   * @access  public
   */
  var $dav_drafts = '';
  /**
   * DAV authentication source
   *
   * When it is empty, use the MySQL-Authentication
   * For the test: ldap://localhost/dc=tgm,dc=ac,dc=at?uid
   *
   * @var     string
   * @access  public
   */
  var $dav_auth = '%ldap_dav_auth%';
  /**
   * The alias as defined in Apache configuration to access the DAV files
   * with slash at start and end.
   *
   * @var     string
   * @access  public
   */
  var $dav_alias = '/dav/';
  /**
   * The name of the access file (usually .htaccess)
   *
   * @var     string
   * @access  public
   */
  var $dav_accessfilename = '.htaccess';
  /**
   * The name of the folder to put the symblic links to the Group-Office shares
   *
   * @var     string
   * @access  public
   */
  var $name_of_sharedir = 'Shares';
  
#email variables
  /**
   * The E-mail mailer type to use. Valid options are: smtp, qmail, sendmail, mail 
   *
   * @var     int
   * @access  public
   */
  var $mailer = 'smtp';
  /**
   * The SMTP host to use when using the SMTP mailer 
   *
   * @var     string
   * @access  public
   */
  var $smtp_server = 'localhost';
  /**
   * The SMTP port to use when using the SMTP mailer 
   *
   * @var     string
   * @access  public
   */
  var $smtp_port = '25';
  /**
   * Connection string options to append to the hostname when connecting to IMAP
   * servers using the PHP imap extension. Some distributions require /notls here.
   *
   * @var     string
   * @access  public
   */
  var $email_connectstring_options = '';
  /**
   * The maximum size of e-mail attachments the browser attempts to upload.
   * Be aware that the php.ini file must be set accordingly (http://www.php.net).
   *
   * @var     string
   * @access  public
   */
  var $max_attachment_size = '10000000';
  /**
   * The width of the E-mail composer's popup window
   *
   * @var     string
   * @access  public
   */
  var $composer_width = '750';
  /**
   * The height of the E-mail composer's popup window
   *
   * @var     string
   * @access  public
   */
  var $composer_height = '550';


  ////////////////////////////////////////////////////////////////////////////////
  ////////////////////      Do not change underneath this      ///////////////////
  ////////////////////////////////////////////////////////////////////////////////
	#group configuration
  /**
   * The administrator user group ID
   *
   * @var     string
   * @access  public
   */
  var $group_root = '1';
  /**
   * The everyone user group ID
   *  
   * @var     string
   * @access  public
   */
  var $group_everyone = '2';

  /**
   * Date formats to be used. Changing these will probably break things!
   *
   * @var     string
   * @access  public
   */
  var $date_formats = array(
      'd-m-Y',
      'm-d-Y'
      );
  /**
   * Time formats to be used.
   *
   * @var     string
   * @access  public
   */
  var $time_formats = array(
      'G:i',
      'g:i a'
      );

  /**
   * Relative path to the modules directory with no slash at start and end
   *
   * @var     string
   * @access  private
   */
  var $module_path = 'modules';
  /**
   * Relative URL to the administrator directory with no slash at start and end
   *
   * @var     string
   * @access  private
   */
  var $administrator_url = 'administrator';
  /**
   * Relative URL to the configuration directory with no slash at start and end
   *
   * @var     string
   * @access  private
   */
  var $configuration_url = 'configuration';
  /**
   * Relative path to the classes directory with no slash at start and end
   *
   * @var     string
   * @access  private
   */
  var $class_path = 'classes';
  /**
   * Relative path to the controls directory with no slash at start and end
   *
   * @var     string
   * @access  private
   */
  var $control_path = 'controls';
  /**
   * Relative URL to the controls directory with no slash at start and end
   *
   * @var     string
   * @access  private
   */
  var $control_url = 'controls';
  /**
   * Relative path to the themes directory with no slash at start and end
   *
   * @var     string
   * @access  private
   */
  var $theme_path = 'themes';
  
  /**
   * Relative URL to the themes directory with no slash at start and end
   *
   * @var     string
   * @access  private
   */
  var $theme_url = 'themes';
  
  /**
   * Relative path to the language directory with no slash at start and end
   *
   * @var     string
   * @access  private
   */
  var $language_path = 'language';

  /**
   * Database object
   *
   * @var     object
   * @access  private
   */
  var $db;

  /**
   * The window mode of Group-Office
   *
   * @var     string
   * @access  public
   */
  var $window_mode = 'normal';

  /**
   * Constructor. Initialises all public variables.
   *
   * @access public
   * @return void
   */
  function GO_CONFIG()
  {  	
  	if($this->root_path == '')
  	{
  		//Detect some default values for installation if root_path is not set yet
  		$this->root_path = str_replace('Group-Office.php','',__FILE__);
  		$this->host = str_replace('install/install.php', '', $_SERVER['PHP_SELF']);  		
  		$this->full_url = 'http://'.$_SERVER['SERVER_NAME'].$this->host;
  		
  		$this->local_path = $this->root_path.'local/';
  		$this->local_url = $this->host.'local/';
  		
  		if(ini_get('safe_mode') == '0' && file_exists('/etc/mime.types'))
  		{
  			$this->mime_types_file = '/etc/mime.types';
  		}else
  		{
  			$this->mime_types_file = $this->root_path.'/lib/mime.types';
  		}
  	}
  	
  	$config = array();
  	
 		@include($this->get_config_file());
  	
  	foreach($config as $key=>$value)
  	{
  		$this->$key=$value;
  	} 	
  	  	
    // path to classes
    $this->class_path = $this->root_path.$this->class_path.$this->slash;
    
    // path to themes
    $this->theme_path = $this->root_path.$this->theme_path.$this->slash;
    
    // URL to themes
    $this->theme_url = $this->host.$this->theme_url.'/';

    // path to controls
    $this->control_path = $this->host.$this->control_path.'/';

    // url to controls
    $this->control_url = $this->host.$this->control_url.'/';

    // path to modules
    $this->module_path = $this->root_path.$this->module_path.$this->slash;

    // url to administrator apps
    $this->administrator_url = $this->host.$this->administrator_url.'/';

    // url to user configuration apps
    $this->configuration_url = $this->host.$this->configuration_url.'/';

    // database class library
    require_once($this->root_path.'database/'.$this->db_type.".class.inc");
    $this->db = new db();
    $this->db->Host = $this->db_host;
    $this->db->Database = $this->db_name;
    $this->db->User = $this->db_user;
    $this->db->Password = $this->db_pass;   
  }
  
  /**
   * Get's the location of a configuration file.
   * Group-Office searches two locations:
   *  1. /etc/Group-Office/APACHE SERVER NAME/subdir/to/groupoffice/config.php
   *	2. /path/to/groupoffice/config.php
   *
   * The first location is more secure because the sensitive information is kept
   * outside the document root.
   *
   * @access public
   * @return string Path to configuration file
   */
  
  function get_config_file()
  {
  	$subdir = str_replace($_SERVER['DOCUMENT_ROOT'],$_SERVER['SERVER_NAME'],__FILE__);
  	$config_file = '/etc/Group-Office/'.str_replace('Group-Office.php', 'config.php',$subdir);

 	if(@file_exists($config_file))
  	{
  		return $config_file;
  	}else
  	{
  		return $this->root_path.'config.php';
  	}
  }

  
  /**
   * Gets a custom saved setting from the database
   *
   * @param 	string $name Configuration key name
   * @access public
   * @return string Configuration key value
   */
  function get_setting( $name )
  {
    $this->db->query("SELECT * FROM settings WHERE name='$name'");
    if ( $this->db->next_record() ) {
      return $this->db->f('value');
    }
    return false;
  }

  /**
   * Saves a custom setting to the database
   *
   * @param 	string $name Configuration key name
   * @param 	string $value Configuration key value
   * @access public
   * @return bool Returns true on succes
   */
  function save_setting( $name, $value )
  {
    if ( $this->get_setting($name) === false ) {
      return $this->db->query("INSERT INTO settings (name, value) VALUES ('$name', '$value')");
    } else {
      return $this->db->query("UPDATE settings SET value='$value' WHERE name='$name'");
    }
  }

  /**
   * Deletes a custom setting from the database
   *
   * @param 	string $name Configuration key name
   * @access public
   * @return bool Returns true on succes
   */
  function delete_setting( $name )
  {
    return $this->db->query("DELETE FROM settings WHERE name='$name'");
  }
}

////////////////////////////////////////////////////////////////////////////////
////////////////////       Group-Office initialisation        //////////////////
////////////////////////////////////////////////////////////////////////////////

//load configuration
$GO_CONFIG = new GO_CONFIG();

//preload classes before session so they can be stored in the session
if ( isset( $GO_INCLUDES ) ) {
  while ( $include = array_shift( $GO_INCLUDES ) ) {
    require_once( $include );
  }
}

require_once($GO_CONFIG->class_path.'base/controls.class.inc');

//setting session save path is required for some server configuration
session_save_path($config['tmpdir']);

//start session
safe_session_start(0);


//require external auth_sources file
if ( $GO_CONFIG->auth_sources != '' ) {
  require_once($GO_CONFIG->auth_sources);
} else {
  $auth_sources = array();
}

if(isset($_REQUEST['auth_source_key']) && isset( $auth_sources[$_REQUEST['auth_source_key']]))
{
	$_SESSION['auth_source'] = $auth_sources[$_REQUEST['auth_source_key']];	
}elseif(!isset($_SESSION['auth_source']))
{
	$_SESSION['auth_source'] = (isset($_COOKIE['GO_AUTH_SOURCE_KEY']) && isset( $auth_sources[$_COOKIE['GO_AUTH_SOURCE_KEY']]  )) ? $auth_sources[$_COOKIE['GO_AUTH_SOURCE_KEY']]  : null;
}

$user_manager = $type = 'sql';
 
if (isset($_SESSION['auth_source'])) {
  if ( ( $_SESSION['auth_source']['type'] == "ldap" ) |
       ( $_SESSION['auth_source']['user_manager'] == "ldap" ) )
  {
    require_once($GO_CONFIG->root_path.'database/ldap.class.inc');
    $GO_LDAP = new ldap();
  }
  
  $user_manager = $_SESSION['auth_source']['user_manager'];
  $type = $_SESSION['auth_source']['type'];
} 

require_once($GO_CONFIG->class_path.'base/'.$type.'.auth.class.inc');
require_once($GO_CONFIG->class_path.'base/'.$user_manager.'.security.class.inc');
require_once($GO_CONFIG->class_path.'base/'.$user_manager.'.groups.class.inc');
require_once($GO_CONFIG->class_path.'base/'.$user_manager.'.users.class.inc');	

require_once($GO_CONFIG->class_path.'base/modules.class.inc');

require_once($GO_CONFIG->root_path.'functions.inc');
require_once($GO_CONFIG->class_path."base/language.class.inc");
require_once($GO_CONFIG->class_path.'base/theme.class.inc');

/*
 * Maybe these should be defined in the files where the class is?
 */
$go_users_class = $user_manager.'_users';
$go_groups_class = $user_manager.'_groups';
$go_security_class = $user_manager.'_security';
$go_auth_class = $type.'_auth';

$GO_LANGUAGE = new GO_LANGUAGE();
$GO_THEME = new GO_THEME();
$GO_AUTH = new $go_auth_class();
$GO_SECURITY = new $go_security_class();
$GO_USERS = new $go_users_class();
$GO_GROUPS = new $go_groups_class();
//Important that GO_SECURITY is loaded before GO_MODULES
$GO_MODULES = new GO_MODULES();

if ( $GO_CONFIG->dav_switch ) {
  require_once($GO_CONFIG->class_path.'dav.class.inc');
  $GO_DAV = new dav();
}
if ( isset( $_REQUEST['SET_LANGUAGE'] ) ) {
  $GO_LANGUAGE->set_language( $_REQUEST['SET_LANGUAGE'] );
}
require_once($GO_LANGUAGE->get_base_language_file('common'));
require_once($GO_LANGUAGE->get_base_language_file('filetypes'));

if ( $GO_CONFIG->log ) {
  define_syslog_variables();
  openlog("groupoffice", LOG_PID | LOG_PERROR, LOG_LOCAL0);
}

define('GO_LOADED', true);
?>