ConditionMatcher.php

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<?php
namespace TYPO3\CMS\Frontend\Configuration\TypoScript\ConditionMatching;

class ConditionMatcher extends \TYPO3\CMS\Core\Configuration\TypoScript\ConditionMatching\AbstractConditionMatcher {

    protected function evaluateCondition($string) {
        list($key, $value) = \TYPO3\CMS\Core\Utility\GeneralUtility::trimExplode('=', $string, FALSE, 2);
        $result = $this->evaluateConditionCommon($key, $value);
        if (is_bool($result)) {
            return $result;
        } else {
            switch ($key) {
                case 'usergroup':
                    $groupList = $this->getGroupList();
                    // '0,-1' is the default usergroups when not logged in!
                    if ($groupList != '0,-1') {
                        $values = \TYPO3\CMS\Core\Utility\GeneralUtility::trimExplode(',', $value, TRUE);
                        foreach ($values as $test) {
                            if ($test == '*' || \TYPO3\CMS\Core\Utility\GeneralUtility::inList($groupList, $test)) {
                                return TRUE;
                            }
                        }
                    }
                    break;
                case 'treeLevel':
                    $values = \TYPO3\CMS\Core\Utility\GeneralUtility::trimExplode(',', $value, TRUE);
                    $treeLevel = count($this->rootline) - 1;
                    foreach ($values as $test) {
                        if ($test == $treeLevel) {
                            return TRUE;
                        }
                    }
                    break;
                case 'PIDupinRootline':

                case 'PIDinRootline':
                    $values = \TYPO3\CMS\Core\Utility\GeneralUtility::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;
    }

    protected function getVariable($var) {
        $vars = explode(':', $var, 2);
        $val = $this->getVariableCommon($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;
    }

    protected function getGroupList() {
        $groupList = $GLOBALS['TSFE']->gr_list;
        return $groupList;
    }

    protected function determinePageId() {
        return (int)$GLOBALS['TSFE']->id;
    }

    protected function getPage() {
        return $GLOBALS['TSFE']->page;
    }

    protected function determineRootline() {
        $rootline = (array) $GLOBALS['TSFE']->tmpl->rootLine;
        return $rootline;
    }

    protected function getUserId() {
        $userId = $GLOBALS['TSFE']->fe_user->user['uid'];
        return $userId;
    }

    protected function isUserLoggedIn() {
        $userLoggedIn = FALSE;
        if ($GLOBALS['TSFE']->loginUser) {
            $userLoggedIn = TRUE;
        }
        return $userLoggedIn;
    }

    protected function log($message) {
        if (is_object($GLOBALS['TT'])) {
            $GLOBALS['TT']->setTSlogMessage($message, 3);
        }
    }

}