index_ts.php

Typo3, 开源里边最强大的

<?php
/***************************************************************
*  Copyright notice
*
*  (c) 1999-2007 Kasper Skaarhoj ([e-mail])
*  All rights reserved
*
*  This script is part of the TYPO3 project. The TYPO3 project 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.
*
*  The GNU General Public License can be found at
*  http://www.gnu.org/copyleft/gpl.html.
*  A copy is found in the textfile GPL.txt and important notices to the license
*  from the author is found in LICENSE.txt distributed with these scripts.
*
*
*  This script is distributed in the hope that it will be useful,
*  but WITHOUT ANY WARRANTY; without even the implied warranty of
*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
*  GNU General Public License for more details.
*
*  This copyright notice MUST APPEAR in all copies of the script!
***************************************************************/
/**
 * This is the MAIN DOCUMENT of the TypoScript driven standard front-end (from the "cms" extension)
 * Basically put this is the "index.php" script which all requests for TYPO3 delivered pages goes to in the frontend (the website)
 * The script configures constants, includes libraries and does a little logic here and there in order to instantiate the right classes to create the webpage.
 * All the real data processing goes on in the "tslib/" classes which this script will include and use as needed.
 *
 * $Id: index_ts.php 2488 2007-09-05 09:49:51Z tkahler $
 * Revised for TYPO3 3.6 June/2003 by Kasper Skaarhoj
 *
 * @author	Kasper Skaarhoj <[e-mail]>
 * @package TYPO3
 * @subpackage tslib
 */

// *******************************
// Set error reporting
// *******************************
error_reporting (E_ALL ^ E_NOTICE);


// ******************
// Constants defined
// ******************
$TYPO3_MISC['microtime_start'] = microtime();
define('TYPO3_OS', stristr(PHP_OS,'win')&&!stristr(PHP_OS,'darwin')?'WIN':'');
define('TYPO3_MODE','FE');

if (!defined('PATH_thisScript')) 	define('PATH_thisScript',str_replace('//','/', str_replace('\\','/', (php_sapi_name()=='cgi'||php_sapi_name()=='isapi' ||php_sapi_name()=='cgi-fcgi')&&($_SERVER['ORIG_PATH_TRANSLATED']?$_SERVER['ORIG_PATH_TRANSLATED']:$_SERVER['PATH_TRANSLATED'])? ($_SERVER['ORIG_PATH_TRANSLATED']?$_SERVER['ORIG_PATH_TRANSLATED']:$_SERVER['PATH_TRANSLATED']):($_SERVER['ORIG_SCRIPT_FILENAME']?$_SERVER['ORIG_SCRIPT_FILENAME']:$_SERVER['SCRIPT_FILENAME']))));
if (!defined('PATH_site')) 			define('PATH_site', dirname(PATH_thisScript).'/');
if (!defined('PATH_t3lib')) 		define('PATH_t3lib', PATH_site.'t3lib/');

define('TYPO3_mainDir', 'typo3/');		// This is the directory of the backend administration for the sites of this TYPO3 installation.
define('PATH_typo3', PATH_site.TYPO3_mainDir);
define('PATH_typo3conf', PATH_site.'typo3conf/');

if (!defined('PATH_tslib')) {
	if (@is_dir(PATH_site.TYPO3_mainDir.'sysext/cms/tslib/')) {
		define('PATH_tslib', PATH_site.TYPO3_mainDir.'sysext/cms/tslib/');
	} elseif (@is_dir(PATH_site.'tslib/')) {
		define('PATH_tslib', PATH_site.'tslib/');
	}
}

if (!@is_dir(PATH_typo3conf))	die('Cannot find configuration. This file is probably executed from the wrong location.');

// *********************
// Timetracking started
// *********************
require_once(PATH_t3lib.'class.t3lib_timetrack.php');
$TT = new t3lib_timeTrack;
$TT->start();
$TT->push('','Script start');


// *********************
// Mandatory libraries included
// *********************
$TT->push('Include class t3lib_db, t3lib_div, t3lib_extmgm','');
	require_once(PATH_t3lib.'class.t3lib_div.php');
	require_once(PATH_t3lib.'class.t3lib_extmgm.php');
$TT->pull();



// **********************
// Include configuration
// **********************
$TT->push('Include config files','');
require(PATH_t3lib.'config_default.php');
if (!defined ('TYPO3_db')) 	die ('The configuration file was not included.');	// the name of the TYPO3 database is stored in this constant. Here the inclusion of the config-file is verified by checking if this var is set.
if (!t3lib_extMgm::isLoaded('cms'))	die('<strong>Error:</strong> The main frontend extension "cms" was not loaded. Enable it in the extension manager in the backend.');

if (!defined('PATH_tslib')) {
	define('PATH_tslib', t3lib_extMgm::extPath('cms').'tslib/');
}

require_once(PATH_t3lib.'class.t3lib_db.php');
$TYPO3_DB = t3lib_div::makeInstance('t3lib_DB');
$TYPO3_DB->debugOutput = $TYPO3_CONF_VARS['SYS']['sqlDebug'];

$CLIENT = t3lib_div::clientInfo();				// Set to the browser: net / msie if 4+ browsers
$TT->pull();


// *******************************
// Checking environment
// *******************************
if (t3lib_div::int_from_ver(phpversion())<4003000)	die ('TYPO3 requires PHP 4.3.0 or higher.');

if (isset($_POST['GLOBALS']) || isset($_GET['GLOBALS']))	die('You cannot set the GLOBALS-array from outside the script.');
if (!get_magic_quotes_gpc())	{
	$TT->push('Add slashes to GET/POST arrays','');
	t3lib_div::addSlashesOnArray($_GET);
	t3lib_div::addSlashesOnArray($_POST);
	$HTTP_GET_VARS = $_GET;
	$HTTP_POST_VARS = $_POST;
	$TT->pull();
}


// *********************
// Look for extension ID which will launch alternative output engine
// *********************
if ($temp_extId = t3lib_div::_GP('eID'))	{
	if ($classPath = t3lib_div::getFileAbsFileName($TYPO3_CONF_VARS['FE']['eID_include'][$temp_extId]))	{
		require_once(PATH_tslib.'class.tslib_eidtools.php');
		require($classPath);
	}
	exit;
}

// *********************
// Libraries included
// *********************
$TT->push('Include Frontend libraries','');
	require_once(PATH_tslib.'class.tslib_fe.php');
	require_once(PATH_t3lib.'class.t3lib_page.php');
	require_once(PATH_t3lib.'class.t3lib_userauth.php');
	require_once(PATH_tslib.'class.tslib_feuserauth.php');
	require_once(PATH_t3lib.'class.t3lib_tstemplate.php');
	require_once(PATH_t3lib.'class.t3lib_cs.php');
$TT->pull();


// ***********************************
// Create $TSFE object (TSFE = TypoScript Front End)
// Connecting to database
// ***********************************
$temp_TSFEclassName = t3lib_div::makeInstanceClassName('tslib_fe');
$TSFE = new $temp_TSFEclassName(
		$TYPO3_CONF_VARS,
		t3lib_div::_GP('id'),
		t3lib_div::_GP('type'),
		t3lib_div::_GP('no_cache'),
		t3lib_div::_GP('cHash'),
		t3lib_div::_GP('jumpurl'),
		t3lib_div::_GP('MP'),
		t3lib_div::_GP('RDCT')
	);
$TSFE->connectToDB();

	// In case of a keyword-authenticated preview, re-initialize the TSFE object:
if ($temp_previewConfig = $TSFE->ADMCMD_preview())	{
	$TSFE = new $temp_TSFEclassName(
		$TYPO3_CONF_VARS,
		t3lib_div::_GP('id'),
		t3lib_div::_GP('type'),
		t3lib_div::_GP('no_cache'),
		t3lib_div::_GP('cHash'),
		t3lib_div::_GP('jumpurl'),
		t3lib_div::_GP('MP'),
		t3lib_div::_GP('RDCT')
	);
	$TSFE->ADMCMD_preview_postInit($temp_previewConfig);
}

if ($TSFE->RDCT)	{$TSFE->sendRedirect();}


// *******************
// output compression
// *******************
if ($TYPO3_CONF_VARS['FE']['compressionLevel'])	{
	ob_start();
	require_once(PATH_t3lib.'class.gzip_encode.php');
}

// *********
// FE_USER
// *********
$TT->push('Front End user initialized','');
	$TSFE->initFEuser();
$TT->pull();

// ****************
// PRE BE_USER HOOK
// ****************
if (is_array($TYPO3_CONF_VARS['SC_OPTIONS']['tslib/index_ts.php']['preBeUser'])) {
	foreach($TYPO3_CONF_VARS['SC_OPTIONS']['tslib/index_ts.php']['preBeUser'] as $_funcRef) {
		$_params = array();
		t3lib_div::callUserFunction($_funcRef, $_params , $_params);
	}
}


// *********
// BE_USER
// *********
$BE_USER='';
if ($_COOKIE['be_typo_user']) {		// If the backend cookie is set, we proceed and checks if a backend user is logged in.
	$TYPO3_MISC['microtime_BE_USER_start'] = microtime();
	$TT->push('Back End user initialized','');
		require_once (PATH_t3lib.'class.t3lib_befunc.php');
		require_once (PATH_t3lib.'class.t3lib_userauthgroup.php');
		require_once (PATH_t3lib.'class.t3lib_beuserauth.php');
		require_once (PATH_t3lib.'class.t3lib_tsfebeuserauth.php');

			// the value this->formfield_status is set to empty in order to disable login-attempts to the backend account through this script
		$BE_USER = t3lib_div::makeInstance('t3lib_tsfeBeUserAuth');	// New backend user object
		$BE_USER->OS = TYPO3_OS;
		$BE_USER->lockIP = $TYPO3_CONF_VARS['BE']['lockIP'];
		$BE_USER->start();			// Object is initialized
		$BE_USER->unpack_uc('');
		if ($BE_USER->user['uid'])	{
			$BE_USER->fetchGroupData();
			$TSFE->beUserLogin = 1;
		}
		if ($BE_USER->checkLockToIP() && $BE_USER->checkBackendAccessSettingsFromInitPhp())	{
			$BE_USER->extInitFeAdmin();
		} else {	// Unset the user initialization.
			$BE_USER='';
			$TSFE->beUserLogin=0;
		}
	$TT->pull();
	$TYPO3_MISC['microtime_BE_USER_end'] = microtime();
} elseif ($TSFE->ADMCMD_preview_BEUSER_uid)	{
	require_once (PATH_t3lib.'class.t3lib_befunc.php');
	require_once (PATH_t3lib.'class.t3lib_userauthgroup.php');
	require_once (PATH_t3lib.'class.t3lib_beuserauth.php');
	require_once (PATH_t3lib.'class.t3lib_tsfebeuserauth.php');

		// the value this->formfield_status is set to empty in order to disable login-attempts to the backend account through this script
	$BE_USER = t3lib_div::makeInstance('t3lib_tsfeBeUserAuth');	// New backend user object
	$BE_USER->userTS_dontGetCached = 1;
	$BE_USER->OS = TYPO3_OS;
	$BE_USER->setBeUserByUid($TSFE->ADMCMD_preview_BEUSER_uid);
	$BE_USER->unpack_uc('');
	if ($BE_USER->user['uid'])	{
		$BE_USER->fetchGroupData();
		$TSFE->beUserLogin = 1;
	} else {
		$BE_USER = '';
		$TSFE->beUserLogin = 0;
	}
}

// ********************
// Workspace preview:
// ********************
$TSFE->workspacePreviewInit();


// *****************************************
// Process the ID, type and other parameters
// After this point we have an array, $page in TSFE, which is the page-record of the current page, $id
// *****************************************
$TT->push('Process ID','');
	$TSFE->checkAlternativeIdMethods();
	$TSFE->clear_preview();
	$TSFE->determineId();

		// Now, if there is a backend user logged in and he has NO access to this page, then re-evaluate the id shown!
	if ($TSFE->beUserLogin && (!$BE_USER->extPageReadAccess($TSFE->page) || t3lib_div::_GP('ADMCMD_noBeUser')))	{	// t3lib_div::_GP('ADMCMD_noBeUser') is placed here because workspacePreviewInit() might need to know if a backend user is logged in!

			// Remove user
		unset($BE_USER);
		$TSFE->beUserLogin = 0;

			// Re-evaluate the page-id.
		$TSFE->checkAlternativeIdMethods();
		$TSFE->clear_preview();
		$TSFE->determineId();
	}
	$TSFE->makeCacheHash();
$TT->pull();


// *****************************************
// Frontend editing
// *****************************************
if ($TSFE->beUserLogin && $BE_USER->extAdmEnabled)	{
	require_once(t3lib_extMgm::extPath('lang').'lang.php');
	$LANG = t3lib_div::makeInstance('language');
	$LANG->init($BE_USER->uc['lang']);

	$BE_USER->extSaveFeAdminConfig();

		// Setting some values based on the admin panel
	$TSFE->forceTemplateParsing = $BE_USER->extGetFeAdminValue('tsdebug', 'forceTemplateParsing');
	$TSFE->displayEditIcons = $BE_USER->extGetFeAdminValue('edit', 'displayIcons');