<?php

/*

 * CKFinder

 * ========

 * http://ckfinder.com

 * Copyright (C) 2007-2009, CKSource - Frederico Knabben. All rights reserved.

 *

 * The software, this file and its contents are subject to the CKFinder

 * License. Please read the license.txt file before using, installing, copying,

 * modifying or distribute this file or part of its contents. The contents of

 * this file is part of the Source Code of CKFinder.

 */



/**

 * @package CKFinder

 * @subpackage Config

 * @copyright CKSource - Frederico Knabben

 */



/**

 * Include access control config class

 */

require_once CKFINDER_CONNECTOR_LIB_DIR . "/Core/AccessControlConfig.php";

/**

 * Include resource type config class

 */

require_once CKFINDER_CONNECTOR_LIB_DIR . "/Core/ResourceTypeConfig.php";

/**

 * Include thumbnails config class

 */

require_once CKFINDER_CONNECTOR_LIB_DIR . "/Core/ThumbnailsConfig.php";

/**

 * Include thumbnails config class

 */

require_once CKFINDER_CONNECTOR_LIB_DIR . "/Core/ImagesConfig.php";



/**

 * Main config parser

 *

 *

 * @package CKFinder

 * @subpackage Config

 * @copyright CKSource - Frederico Knabben

 * @global string $GLOBALS['config']

 */

class CKFinder_Connector_Core_Config

{

    /**

     * Is CKFinder enabled

     *

     * @var boolean

     * @access private

     */

    var $_isEnabled = false;

    /**

	 * License Name

	 *

	 * @var string

	 * @access private

	 */

    var $_licenseName = "";

    /**

     * License Key

     *

     * @var string

     * @access private

     */

    var $_licenseKey = "";

    /**

     * Role session variable name

     *

     * @var string

     * @access private

     */

    var $_roleSessionVar = "CKFinder_UserRole";

    /**

     * Access Control Configuration

     *

     * @var CKFinder_Connector_Core_AccessControlConfig

     * @access private

     */

    var $_accessControlConfigCache;

    /**

     * ResourceType config cache

     *

     * @var array

     * @access private

     */

    var $_resourceTypeConfigCache = array();

    /**

     * Thumbnails config cache

     *

     * @var CKFinder_Connector_Core_ThumbnailsConfig

     * @access private

     */

    var $_thumbnailsConfigCache;

    /**

     * Images config cache

     *

     * @var CKFinder_Connector_Core_ImagesConfig

     * @access private

     */

    var $_imagesConfigCache;

    /**

     * Array with default resource types names

     *

     * @access private

     * @var array

     */

    var $_defaultResourceTypes = array();

    /**

     * Filesystem encoding

     *

     * @var string

     * @access private

     */

    var $_filesystemEncoding;

    /**

     * Check double extension

     *

     * @var boolean

     * @access private

     */

    var $_checkDoubleExtension = true;

    /**

     * If set to true, validate image size

     *

     * @var boolean

     * @access private

     */

    var $_secureImageUploads = true;

    /**

     * Check file size after scaling images (applies to images only)

     *

     * @var boolean

     */

    var $_checkSizeAfterScaling = true;

    /**

     * For security, HTML is allowed in the first Kb of data for files having the following extensions only

     *

     * @var array

     * @access private

     */

    var $_htmlExtensions = array('html', 'htm', 'xml', 'xsd', 'txt', 'js');

    /**

     * Chmod files after upload to the following permission

     *

     * @var integer

     * @access private

     */

    var $_chmodFiles = 0777;

    /**

     * Chmod directories after creation

     *

     * @var integer

     * @access private

     */

    var $_chmodFolders = 0755;

    /**

     * Hide folders

     *

     * @var array

     * @access private

     */

    var $_hideFolders = array(".svn", "CVS");

    /**

     * Hide files

     *

     * @var integer

     * @access private

     */

    var $_hideFiles = array(".*");



    function CKFinder_Connector_Core_Config()

    {

        $this->loadValues();

    }



    /**

	 * Get file system encoding, returns null if encoding is not set

	 *

	 * @access public

	 * @return string

	 */

    function getFilesystemEncoding()

    {

        return $this->_filesystemEncoding;

    }



    /**

	 * Get "secureImageUploads" value

	 *

	 * @access public

	 * @return boolean

	 */

    function getSecureImageUploads()

    {

        return $this->_secureImageUploads;

    }



    /**

	 * Get "checkSizeAfterScaling" value

	 *

	 * @access public

	 * @return boolean

	 */

    function checkSizeAfterScaling()

    {

        return $this->_checkSizeAfterScaling;

    }



    /**

	 * Get "htmlExtensions" value

	 *

	 * @access public

	 * @return array

	 */

    function getHtmlExtensions()

    {

        return $this->_htmlExtensions;

    }



    /**

	 * Get regular expression to hide folders

	 *

	 * @access public

	 * @return array

	 */

    function getHideFoldersRegex()

    {

        static $folderRegex;



        if (!isset($folderRegex)) {

            if (is_array($this->_hideFolders) && $this->_hideFolders) {

                $folderRegex = join("|", $this->_hideFolders);

                $folderRegex = strtr($folderRegex, array("?" => "__QMK__", "*" => "__AST__", "|" => "__PIP__"));

                $folderRegex = preg_quote($folderRegex, "/");

                $folderRegex = strtr($folderRegex, array("__QMK__" => ".", "__AST__" => ".*", "__PIP__" => "|"));

                $folderRegex = "/^(?:" . $folderRegex . ")$/uim";

            }

            else {

                $folderRegex = "";

            }

        }



        return $folderRegex;

    }



    /**

	 * Get regular expression to hide files

	 *

	 * @access public

	 * @return array

	 */

    function getHideFilesRegex()

    {

        static $fileRegex;



        if (!isset($fileRegex)) {

            if (is_array($this->_hideFiles) && $this->_hideFiles) {

                $fileRegex = join("|", $this->_hideFiles);

                $fileRegex = strtr($fileRegex, array("?" => "__QMK__", "*" => "__AST__", "|" => "__PIP__"));

                $fileRegex = preg_quote($fileRegex, "/");

                $fileRegex = strtr($fileRegex, array("__QMK__" => ".", "__AST__" => ".*", "__PIP__" => "|"));

                $fileRegex = "/^(?:" . $fileRegex . ")$/uim";

            }

            else {

                $fileRegex = "";

            }

        }



        return $fileRegex;

    }



    /**

	 * Get "Check double extension" value

	 *

	 * @access public

	 * @return boolean

	 */

    function getCheckDoubleExtension()

    {

        return $this->_checkDoubleExtension;

    }



    /**

	 * Get default resource types

	 *

	 * @access public

	 * @return array()

	 */

    function getDefaultResourceTypes()

    {

        return $this->_defaultResourceTypes;

    }



    /**

	 * Is CKFinder enabled

	 *

	 * @access public

	 * @return boolean

	 */

    function getIsEnabled()

    {

        return $this->_isEnabled;

    }



    /**

	 * Get license key

	 *

	 * @access public

	 * @return string

	 */

    function getLicenseKey()

    {

        return $this->_licenseKey;

    }



    /**

	* Get license name

		 *

	* @access public

	* @return string

		 */

    function getLicenseName()

    {

        return $this->_licenseName;

    }



    /**

	* Get chmod settings for uploaded files

	*

	* @access public

	* @return integer

	*/

    function getChmodFiles()

    {

        return $this->_chmodFiles;

    }



    /**

	* Get chmod settings for created directories

	*

	* @access public

	* @return integer

	*/

    function getChmodFolders()

    {

        return $this->_chmodFolders;

    }



    /**

	 * Get role sesion variable name

	 *

	 * @access public

	 * @return string

	 */

    function getRoleSessionVar()

    {

        return $this->_roleSessionVar;

    }



    /**

	 * Get resourceTypeName config

	 *

	 * @param string $resourceTypeName

	 * @return CKFinder_Connector_Core_ResourceTypeConfig|null

	 * @access public

	 */

    function &getResourceTypeConfig($resourceTypeName)

    {

        $_null = null;



        if (isset($this->_resourceTypeConfigCache[$resourceTypeName])) {

            return $this->_resourceTypeConfigCache[$resourceTypeName];

        }



        if (!isset($GLOBALS['config']['ResourceType']) || !is_array($GLOBALS['config']['ResourceType'])) {

            return $_null;

        }



        reset($GLOBALS['config']['ResourceType']);

        while (list($_key,$_resourceTypeNode) = each($GLOBALS['config']['ResourceType'])) {

            if ($_resourceTypeNode['name'] === $resourceTypeName) {

                $this->_resourceTypeConfigCache[$resourceTypeName] = new CKFinder_Connector_Core_ResourceTypeConfig($_resourceTypeNode);



                return $this->_resourceTypeConfigCache[$resourceTypeName];

            }

        }



        return $_null;

    }



    /**

     * Get thumbnails config

     *

     * @access public

     * @return CKFinder_Connector_Core_ThumbnailsConfig

     */

    function &getThumbnailsConfig()

    {

        if (!isset($this->_thumbnailsConfigCache)) {

            $this->_thumbnailsConfigCache = new CKFinder_Connector_Core_ThumbnailsConfig(isset($GLOBALS['config']['Thumbnails']) ? $GLOBALS['config']['Thumbnails'] : array());

        }



        return $this->_thumbnailsConfigCache;

    }



    /**

     * Get images config

     *

     * @access public

     * @return CKFinder_Connector_Core_ImagesConfig

     */

    function &getImagesConfig()

    {

        if (!isset($this->_imagesConfigCache)) {

            $this->_imagesConfigCache = new CKFinder_Connector_Core_ImagesConfig(isset($GLOBALS['config']['Images']) ? $GLOBALS['config']['Images'] : array());

        }



        return $this->_imagesConfigCache;

    }



    /**

     * Get access control config

     *

     * @access public

     * @return CKFinder_Connector_Core_AccessControlConfig

     */

    function &getAccessControlConfig()

    {

        if (!isset($this->_accessControlConfigCache)) {

            $this->_accessControlConfigCache = new CKFinder_Connector_Core_AccessControlConfig(isset($GLOBALS['config']['AccessControl']) ? $GLOBALS['config']['AccessControl'] : array());

        }



        return $this->_accessControlConfigCache;

    }



    /**

     * Load values from config

     *

     * @access private

     */

    function loadValues()

    {

        if (function_exists('CheckAuthentication')) {

            $this->_isEnabled = CheckAuthentication();

        }

        if (isset($GLOBALS['config']['LicenseName'])) {

            $this->_licenseName = (string)$GLOBALS['config']['LicenseName'];

        }

        if (isset($GLOBALS['config']['LicenseKey'])) {

            $this->_licenseKey = (string)$GLOBALS['config']['LicenseKey'];

        }

        if (isset($GLOBALS['config']['FilesystemEncoding'])) {

            $this->_filesystemEncoding = (string)$GLOBALS['config']['FilesystemEncoding'];

        }

        if (isset($GLOBALS['config']['RoleSessionVar'])) {

            $this->_roleSessionVar = (string)$GLOBALS['config']['RoleSessionVar'];

        }

        if (isset($GLOBALS['config']['CheckDoubleExtension'])) {

            $this->_checkDoubleExtension = CKFinder_Connector_Utils_Misc::booleanValue($GLOBALS['config']['CheckDoubleExtension']);

        }

        if (isset($GLOBALS['config']['SecureImageUploads'])) {

            $this->_secureImageUploads = CKFinder_Connector_Utils_Misc::booleanValue($GLOBALS['config']['SecureImageUploads']);

        }

        if (isset($GLOBALS['config']['CheckSizeAfterScaling'])) {

            $this->_checkSizeAfterScaling = CKFinder_Connector_Utils_Misc::booleanValue($GLOBALS['config']['CheckSizeAfterScaling']);

        }

        if (isset($GLOBALS['config']['HtmlExtensions'])) {

            $this->_htmlExtensions = (array)$GLOBALS['config']['HtmlExtensions'];

        }

        if (isset($GLOBALS['config']['HideFolders'])) {

            $this->_hideFolders = (array)$GLOBALS['config']['HideFolders'];

        }

        if (isset($GLOBALS['config']['HideFiles'])) {

            $this->_hideFiles = (array)$GLOBALS['config']['HideFiles'];

        }

        if (isset($GLOBALS['config']['ChmodFiles'])) {

            $this->_chmodFiles = $GLOBALS['config']['ChmodFiles'];

        }

        if (isset($GLOBALS['config']['ChmodFolders'])) {

            $this->_chmodFolders = $GLOBALS['config']['ChmodFolders'];

        }

        if (isset($GLOBALS['config']['DefaultResourceTypes'])) {

            $_defaultResourceTypes = (string)$GLOBALS['config']['DefaultResourceTypes'];

            if (strlen($_defaultResourceTypes)) {

                $this->_defaultResourceTypes = explode(",", $_defaultResourceTypes);

            }

        }

    }



    /**

     * Get all resource type names defined in config

     *

     * @return array

     * @access public

     */

    function getResourceTypeNames()

    {

        if (!isset($GLOBALS['config']['ResourceType']) || !is_array($GLOBALS['config']['ResourceType'])) {

            return array();

        }



        $_names = array();

        foreach ($GLOBALS['config']['ResourceType'] as $key => $_resourceType) {

            if (isset($_resourceType['name'])) {

                $_names[] = (string)$_resourceType['name'];

            }

        }



        return $_names;

    }

}