AuthenticationService.php

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<?php
namespace TYPO3\CMS\Sv;

class AuthenticationService extends \TYPO3\CMS\Sv\AbstractAuthenticationService {

    public function processLoginData(array &$loginData, $passwordTransmissionStrategy) {
        $isProcessed = TRUE;
        // Processing data according to the state it was submitted in.
        switch ($passwordTransmissionStrategy) {
            case 'normal':
                $loginData['uident_text'] = $loginData['uident'];
                break;
            case 'challenged':
                $loginData['uident_text'] = '';
                $loginData['uident_challenged'] = $loginData['uident'];
                $loginData['uident_superchallenged'] = '';
                break;
            case 'superchallenged':
                $loginData['uident_text'] = '';
                $loginData['uident_challenged'] = '';
                $loginData['uident_superchallenged'] = $loginData['uident'];
                break;
            default:
                $isProcessed = FALSE;
        }
        if (!empty($loginData['uident_text'])) {
            $loginData['uident_challenged'] = (string) md5(($loginData['uname'] . ':' . $loginData['uident_text'] . ':' . $loginData['chalvalue']));
            $loginData['uident_superchallenged'] = (string) md5(($loginData['uname'] . ':' . md5($loginData['uident_text']) . ':' . $loginData['chalvalue']));
            $isProcessed = TRUE;
        }
        return $isProcessed;
    }

    public function getUser() {
        $user = FALSE;
        if ($this->login['status'] == 'login') {
            if ($this->login['uident']) {
                $user = $this->fetchUserRecord($this->login['uname']);
                if (!is_array($user)) {
                    // Failed login attempt (no username found)
                    $this->writelog(255, 3, 3, 2, 'Login-attempt from %s (%s), username \'%s\' not found!!', array($this->authInfo['REMOTE_ADDR'], $this->authInfo['REMOTE_HOST'], $this->login['uname']));
                    // Logout written to log
                    \TYPO3\CMS\Core\Utility\GeneralUtility::sysLog(sprintf('Login-attempt from %s (%s), username \'%s\' not found!', $this->authInfo['REMOTE_ADDR'], $this->authInfo['REMOTE_HOST'], $this->login['uname']), 'Core', \TYPO3\CMS\Core\Utility\GeneralUtility::SYSLOG_SEVERITY_WARNING);
                } else {
                    if ($this->writeDevLog) {
                        \TYPO3\CMS\Core\Utility\GeneralUtility::devLog('User found: ' . \TYPO3\CMS\Core\Utility\GeneralUtility::arrayToLogString($user, array($this->db_user['userid_column'], $this->db_user['username_column'])), 'TYPO3\\CMS\\Sv\\AuthenticationService');
                    }
                }
            } else {
                // Failed Login attempt (no password given)
                $this->writelog(255, 3, 3, 2, 'Login-attempt from %s (%s) for username \'%s\' with an empty password!', array($this->authInfo['REMOTE_ADDR'], $this->authInfo['REMOTE_HOST'], $this->login['uname']));
                \TYPO3\CMS\Core\Utility\GeneralUtility::sysLog(sprintf('Login-attempt from %s (%s), for username \'%s\' with an empty password!', $this->authInfo['REMOTE_ADDR'], $this->authInfo['REMOTE_HOST'], $this->login['uname']), 'Core', \TYPO3\CMS\Core\Utility\GeneralUtility::SYSLOG_SEVERITY_WARNING);
            }
        }
        return $user;
    }

    public function authUser(array $user) {
        $OK = 100;
        // This authentication service can only work correctly, if a non empty username along with a non empty password is provided.
        // Otherwise a different service is allowed to check for other login credentials
        if ((string)$this->login['uident'] !== '' && (string)$this->login['uname'] !== '') {
            // Checking password match for user:
            $OK = $this->compareUident($user, $this->login);
            if (!$OK) {
                // Failed login attempt (wrong password) - write that to the log!
                if ($this->writeAttemptLog) {
                    $this->writelog(255, 3, 3, 1, 'Login-attempt from %s (%s), username \'%s\', password not accepted!', array($this->authInfo['REMOTE_ADDR'], $this->authInfo['REMOTE_HOST'], $this->login['uname']));
                    \TYPO3\CMS\Core\Utility\GeneralUtility::sysLog(sprintf('Login-attempt from %s (%s), username \'%s\', password not accepted!', $this->authInfo['REMOTE_ADDR'], $this->authInfo['REMOTE_HOST'], $this->login['uname']), 'Core', \TYPO3\CMS\Core\Utility\GeneralUtility::SYSLOG_SEVERITY_WARNING);
                }
                if ($this->writeDevLog) {
                    \TYPO3\CMS\Core\Utility\GeneralUtility::devLog('Password not accepted: ' . $this->login['uident'], 'TYPO3\\CMS\\Sv\\AuthenticationService', 2);
                }
            }
            // Checking the domain (lockToDomain)
            if ($OK && $user['lockToDomain'] && $user['lockToDomain'] != $this->authInfo['HTTP_HOST']) {
                // Lock domain didn't match, so error:
                if ($this->writeAttemptLog) {
                    $this->writelog(255, 3, 3, 1, 'Login-attempt from %s (%s), username \'%s\', locked domain \'%s\' did not match \'%s\'!', array($this->authInfo['REMOTE_ADDR'], $this->authInfo['REMOTE_HOST'], $user[$this->db_user['username_column']], $user['lockToDomain'], $this->authInfo['HTTP_HOST']));
                    \TYPO3\CMS\Core\Utility\GeneralUtility::sysLog(sprintf('Login-attempt from %s (%s), username \'%s\', locked domain \'%s\' did not match \'%s\'!', $this->authInfo['REMOTE_ADDR'], $this->authInfo['REMOTE_HOST'], $user[$this->db_user['username_column']], $user['lockToDomain'], $this->authInfo['HTTP_HOST']), 'Core', \TYPO3\CMS\Core\Utility\GeneralUtility::SYSLOG_SEVERITY_WARNING);
                }
                $OK = 0;
            }
        }
        return $OK;
    }

    public function getGroups($user, $knownGroups) {
        global $TYPO3_CONF_VARS;
        $groupDataArr = array();
        if ($this->mode == 'getGroupsFE') {
            $groups = array();
            if (is_array($user) && $user[$this->db_user['usergroup_column']]) {
                $groupList = $user[$this->db_user['usergroup_column']];
                $groups = array();
                $this->getSubGroups($groupList, '', $groups);
            }
            // ADD group-numbers if the IPmask matches.
            if (is_array($TYPO3_CONF_VARS['FE']['IPmaskMountGroups'])) {
                foreach ($TYPO3_CONF_VARS['FE']['IPmaskMountGroups'] as $IPel) {
                    if ($this->authInfo['REMOTE_ADDR'] && $IPel[0] && \TYPO3\CMS\Core\Utility\GeneralUtility::cmpIP($this->authInfo['REMOTE_ADDR'], $IPel[0])) {
                        $groups[] = (int)$IPel[1];
                    }
                }
            }
            $groups = array_unique($groups);
            if (count($groups)) {
                $list = implode(',', $groups);
                if ($this->writeDevLog) {
                    \TYPO3\CMS\Core\Utility\GeneralUtility::devLog('Get usergroups with id: ' . $list, 'TYPO3\\CMS\\Sv\\AuthenticationService');
                }
                $lockToDomain_SQL =
                    ' AND ('
                        . 'lockToDomain=\'\''
                        . ' OR lockToDomain IS NULL'
                        . ' OR lockToDomain=' . $GLOBALS['TYPO3_DB']->fullQuoteStr($this->authInfo['HTTP_HOST'], $this->db_groups['table'])
                    . ')';
                if (!$this->authInfo['showHiddenRecords']) {
                    $hiddenP = 'AND hidden=0 ';
                }
                $res = $GLOBALS['TYPO3_DB']->exec_SELECTquery('*', $this->db_groups['table'], 'deleted=0 ' . $hiddenP . ' AND uid IN (' . $list . ')' . $lockToDomain_SQL);
                while ($row = $GLOBALS['TYPO3_DB']->sql_fetch_assoc($res)) {
                    $groupDataArr[$row['uid']] = $row;
                }
                if ($res) {
                    $GLOBALS['TYPO3_DB']->sql_free_result($res);
                }
            } else {
                if ($this->writeDevLog) {
                    \TYPO3\CMS\Core\Utility\GeneralUtility::devLog('No usergroups found.', 'TYPO3\\CMS\\Sv\\AuthenticationService', 2);
                }
            }
        } elseif ($this->mode == 'getGroupsBE') {

        }
        return $groupDataArr;
    }

    public function getSubGroups($grList, $idList = '', &$groups) {
        // Fetching records of the groups in $grList (which are not blocked by lockedToDomain either):
        $lockToDomain_SQL =
            ' AND ('
                . 'lockToDomain=\'\''
                . ' OR lockToDomain IS NULL'
                . ' OR lockToDomain=' . $GLOBALS['TYPO3_DB']->fullQuoteStr($this->authInfo['HTTP_HOST'], 'fe_groups')
            . ')';
        if (!$this->authInfo['showHiddenRecords']) {
            $hiddenP = 'AND hidden=0 ';
        }
        $res = $GLOBALS['TYPO3_DB']->exec_SELECTquery('uid,subgroup', 'fe_groups', 'deleted=0 ' . $hiddenP . ' AND uid IN (' . $grList . ')' . $lockToDomain_SQL);
        // Internal group record storage
        $groupRows = array();
        // The groups array is filled
        while ($row = $GLOBALS['TYPO3_DB']->sql_fetch_assoc($res)) {
            if (!in_array($row['uid'], $groups)) {
                $groups[] = $row['uid'];
            }
            $groupRows[$row['uid']] = $row;
        }
        // Traversing records in the correct order
        $include_staticArr = \TYPO3\CMS\Core\Utility\GeneralUtility::intExplode(',', $grList);
        // traversing list
        foreach ($include_staticArr as $uid) {
            // Get row:
            $row = $groupRows[$uid];
            // Must be an array and $uid should not be in the idList, because then it is somewhere previously in the grouplist
            if (is_array($row) && !\TYPO3\CMS\Core\Utility\GeneralUtility::inList($idList, $uid)) {
                // Include sub groups
                if (trim($row['subgroup'])) {
                    // Make integer list
                    $theList = implode(',', \TYPO3\CMS\Core\Utility\GeneralUtility::intExplode(',', $row['subgroup']));
                    // Call recursively, pass along list of already processed groups so they are not recursed again.
                    $this->getSubGroups($theList, $idList . ',' . $uid, $groups);
                }
            }
        }
    }

}