class.t3lib_matchcondition_frontend.php

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<?php
/***************************************************************
 *  Copyright notice
 *
 *  (c) 2009-2011 Oliver Hader <oliver@typo3.org>
 *  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!
 ***************************************************************/

/**
 * Matching TypoScript conditions for frontend disposal.
 *
 * Used with the TypoScript parser.
 * Matches browserinfo, IPnumbers for use with templates
 *
 * @author  Kasper Skårhøj <kasperYYYY@typo3.com>
 * @package TYPO3
 * @subpackage t3lib
 */
class t3lib_matchCondition_frontend extends t3lib_matchCondition_abstract {

    /**
     * Evaluates a TypoScript condition given as input, eg. "[browser=net][...(other conditions)...]"
     *
     * @param   string      $string: The condition to match against its criterias.
     * @return  boolean     Whether the condition matched
     * @see t3lib_tsparser::parse()
     */
    protected function evaluateCondition($string) {
        list($key, $value) = t3lib_div::trimExplode('=', $string, FALSE, 2);

        $result = parent::evaluateConditionCommon($key, $value);

        if (is_bool($result)) {
            return $result;
        } else {
            switch ($key) {
                case 'usergroup':
                    $groupList = $this->getGroupList();
                    if ($groupList != '0,-1') { // '0,-1' is the default usergroups when not logged in!
                        $values = t3lib_div::trimExplode(',', $value, TRUE);
                        foreach ($values as $test) {
                            if ($test == '*' || t3lib_div::inList($groupList, $test)) {
                                return TRUE;
                            }
                        }
                    }
                break;
                case 'treeLevel':
                    $values = t3lib_div::trimExplode(',', $value, TRUE);
                    $treeLevel = count($this->rootline) - 1;
                    foreach ($values as $test) {
                        if ($test == $treeLevel) {
                            return TRUE;
                        }
                    }
                break;
                case 'PIDupinRootline':
                case 'PIDinRootline':
                    $values = t3lib_div::trimExplode(',', $value, TRUE);
                    if (($key == 'PIDinRootline') || (!in_array($this->pageId, $values))) {
                        foreach ($values as $test) {
                            foreach ($this->rootline as $rl_dat) {
                                if ($rl_dat['uid'] == $test) {
                                    return TRUE;
                                }
                            }
                        }
                    }
                break;
            }
        }

        return FALSE;
    }

    /**
     * Returns GP / ENV / TSFE vars
     *
     * @param   string      Identifier
     * @return  mixed       The value of the variable pointed to.
     */
    protected function getVariable($var) {
        $vars = explode(':', $var, 2);

        $val = parent::getVariableCommon($vars);

        if (is_null($val)) {
            $splitAgain = explode('|', $vars[1], 2);
            $k = trim($splitAgain[0]);
            if ($k) {
                switch ((string) trim($vars[0])) {
                    case 'TSFE':
                        $val = $this->getGlobal('TSFE|' . $vars[1]);
                    break;
                }
            }
        }

        return $val;
    }

    /**
     * Get the usergroup list of the current user.
     *
     * @return  string      The usergroup list of the current user
     */
    protected function getGroupList() {
        $groupList = $GLOBALS['TSFE']->gr_list;
        return $groupList;
    }

    /**
     * Determines the current page Id.
     *
     * @return  integer     The current page Id
     */
    protected function determinePageId() {
        return (int) $GLOBALS['TSFE']->id;
    }

    /**
     * Gets the properties for the current page.
     *
     * @return  array       The properties for the current page.
     */
    protected function getPage() {
        return $GLOBALS['TSFE']->page;
    }

    /**
     * Determines the rootline for the current page.
     *
     * @return  array       The rootline for the current page.
     */
    protected function determineRootline() {
        $rootline = (array) $GLOBALS['TSFE']->tmpl->rootLine;
        return $rootline;
    }

    /**
     * Get prefix for user functions (normally 'user_').
     *
     * @return  string      The prefix for user functions (normally 'user_').
     */
    protected function getUserFuncClassPrefix() {
        $userFuncClassPrefix = $GLOBALS['TSFE']->TYPO3_CONF_VARS['FE']['userFuncClassPrefix'];
        return $userFuncClassPrefix;
    }

    /**
     * Get the id of the current user.
     *
     * @return  integer     The id of the current user
     */
    protected function getUserId() {
        $userId = $GLOBALS['TSFE']->fe_user->user['uid'];
        return $userId;
    }

    /**
     * Determines if a user is logged in.
     *
     * @return  boolean     Determines if a user is logged in
     */
    protected function isUserLoggedIn() {
        $userLoggedIn = FALSE;
        if ($GLOBALS['TSFE']->loginUser) {
            $userLoggedIn = TRUE;
        }
        return $userLoggedIn;
    }

    /**
     * Set/write a log message.
     *
     * @param   string      $message: The log message to set/write
     * @return  void
     */
    protected function log($message) {
        if (is_object($GLOBALS['TT'])) {
            $GLOBALS['TT']->setTSlogMessage($message, 3);
        }
    }
}


if (defined('TYPO3_MODE') && isset($GLOBALS['TYPO3_CONF_VARS'][TYPO3_MODE]['XCLASS']['t3lib/matchcondition/class.t3lib_matchcondition_frontend.php'])) {
    include_once($GLOBALS['TYPO3_CONF_VARS'][TYPO3_MODE]['XCLASS']['t3lib/matchcondition/class.t3lib_matchcondition_frontend.php']);
}

?>