661 lines
19 KiB
PHP
661 lines
19 KiB
PHP
<?php
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/*
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$Id$
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This code is part of LDAP Account Manager (http://www.ldap-account-manager.org/)
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Copyright (C) 2003 - 2006 Tilo Lutz
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2009 - 2010 Roland Gruber
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/**
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* This provides several helper function for the account modules.
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*
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* @author Tilo Lutz
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* @author Roland Gruber
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*
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* @package lib
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*/
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/**
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* Returns a list of shells listed in config/shells.
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*
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* @return array list of shell names
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*/
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function getshells() {
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if (!isset($_SESSION['lampath'])) return array();
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// Load shells from file
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if (file_exists($_SESSION['lampath'] . 'config/shells')) {
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$shells = file($_SESSION['lampath'] . 'config/shells');
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$i = 0;
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while (count($shells) > $i) {
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// remove whitespaces
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trim($shells[$i]);
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// remove lineend
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$shells[$i] = substr($shells[$i], 0, strpos($shells[$i], "\n"));
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// remove comments
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if ($shells[$i]{0}=='#') unset ($shells[$i]);
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else $i++;
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}
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// $shells is array with all valid shells
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return $shells;
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}
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else return array();
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}
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/**
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* This function will return all values from $array without values of $values.
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*
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* @param array $values list of values which should be removed
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* @param array $array list of original values
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* @return array list of remaining values
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*/
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function array_delete($values, $array) {
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// Loop for every entry and check if it should be removed
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if (is_array($array)) {
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$return = array();
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foreach ($array as $array_value)
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if (!@in_array($array_value, $values))
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$return[] = $array_value;
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return $return;
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}
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else return array();
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}
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/**
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* Checks if a string exists in an array, ignoring case.
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*/
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function in_array_ignore_case($needle, $haystack) {
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if( ! is_array( $haystack ) )
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return false;
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if( ! is_string( $needle ) )
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return false;
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foreach( $haystack as $element )
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if( is_string( $element ) && 0 == strcasecmp( $needle, $element ) )
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return true;
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return false;
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}
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/**
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* This function will return the days from 1.1.1970 until now.
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*
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* @return number of days
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*/
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function getdays() {
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$days = time() / 86400;
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settype($days, 'integer');
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return $days;
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}
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/**
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* Takes a list of Samba flags and creates the corresponding flag string.
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*
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* @param array $input is an array of Samba flags (e.g. X or D)
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* @return string Samba flag string
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*/
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function smbflag($input) {
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// Start character
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$flag = "[";
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// Add Options
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if ($input['W']) $flag .= "W"; else $flag .= "U";
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if ($input['D']) $flag .= "D";
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if ($input['X']) $flag .= "X";
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if ($input['N']) $flag .= "N";
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if ($input['S']) $flag .= "S";
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if ($input['H']) $flag .= "H";
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// Expand string to fixed length
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$flag = str_pad($flag, 12);
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// End character
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$flag = $flag. "]";
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return $flag;
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}
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/**
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* Generates the LM hash of a password.
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*
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* @param string password original password
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* @return string password hash
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*/
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function lmPassword($password) {
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// Needed to calculate Samba passwords
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include_once("createntlm.inc");
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// get hash
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$hash = new smbHash();
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return $hash->lmhash($password);
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}
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/**
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* Generates the NT hash of a password.
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*
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* @param string password original password
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* @return string password hash
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*/
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function ntPassword($password) {
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// Needed to calculate Samba passwords
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include_once("createntlm.inc");
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// get hash
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$hash = new smbHash();
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return $hash->nthash($password);
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}
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/**
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* Returns the hash value of a plain text password
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* the hash algorithm depends on the configuration file
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*
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* @param string $password the password string
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* @param boolean $enabled marks the hash as enabled/disabled (e.g. by prefixing "!")
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* @param string $hashType password hash type (CRYPT, SHA, SSHA, MD5, SMD5, PLAIN)
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* @return string the password hash
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*/
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function pwd_hash($password, $enabled = true, $hashType = 'SSHA') {
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// check for empty password
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if (! $password || ($password == "")) {
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return "";
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}
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// calculate new random number
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if (isset($_SESSION['ldap'])) {
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$rand = $_SESSION['ldap']->new_rand();
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}
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else {
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mt_srand((microtime() * 1000000));
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$rand = mt_rand();
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}
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$hash = "";
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switch ($hashType) {
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case 'CRYPT':
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$hash = "{CRYPT}" . crypt($password);
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break;
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case 'MD5':
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$hash = "{MD5}" . base64_encode(hex2bin(md5($password)));
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break;
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case 'SMD5':
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$salt0 = substr(pack("h*", md5($rand)), 0, 8);
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$salt = substr(pack("H*", md5($salt0 . $password)), 0, 4);
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$hash = "{SMD5}" . base64_encode(hex2bin(md5($password . $salt)) . $salt);
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break;
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case 'SHA':
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$hash = "{SHA}" . base64_encode(hex2bin(sha1($password)));
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break;
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case 'PLAIN':
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$hash = $password;
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break;
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case 'SSHA':
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default: // use SSHA if the setting is invalid
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$salt0 = substr(pack("h*", md5($rand)), 0, 8);
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$salt = substr(pack("H*", sha1($salt0 . $password)), 0, 4);
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$hash = "{SSHA}" . base64_encode(hex2bin(sha1($password . $salt)) . $salt);
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break;
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}
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// enable/disable password
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if (! $enabled) return pwd_disable($hash);
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else return $hash;
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}
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/**
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* Marks an password hash as enabled and returns the new hash string
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*
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* @param string $hash hash value to enable
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* @return string enabled password hash
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*/
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function pwd_enable($hash) {
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// check if password is disabled (old wrong LAM method)
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if ((substr($hash, 0, 2) == "!{") || ((substr($hash, 0, 2) == "*{"))) {
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return substr($hash, 1, strlen($hash));
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}
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// check for "!" or "*" at beginning of password hash
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else {
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if (substr($hash, 0, 1) == "{") {
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$pos = strpos($hash, "}");
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if ((substr($hash, $pos + 1, 1) == "!") || (substr($hash, $pos + 1, 1) == "*")) {
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// enable hash
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return substr($hash, 0, $pos + 1) . substr($hash, $pos + 2, strlen($hash));
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}
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else return $hash; // not disabled
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}
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else return $hash; // password is plain text
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}
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}
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/**
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* Marks an password hash as disabled and returns the new hash string
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*
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* @param string $hash hash value to disable
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* @return string disabled hash value
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*/
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function pwd_disable($hash) {
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// check if password is disabled (old wrong LAM method)
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if ((substr($hash, 0, 2) == "!{") || ((substr($hash, 0, 2) == "*{"))) {
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return $hash;
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}
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// check for "!" or "*" at beginning of password hash
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else {
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if (substr($hash, 0, 1) == "{") {
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$pos = strpos($hash, "}");
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if ((substr($hash, $pos + 1, 1) == "!") || (substr($hash, $pos + 1, 1) == "*")) {
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// hash already disabled
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return $hash;
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}
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else return substr($hash, 0, $pos + 1) . "!" . substr($hash, $pos + 1, strlen($hash)); // not disabled
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}
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else return $hash; // password is plain text
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}
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}
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/**
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* Checks if a password hash is enabled/disabled
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*
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* @param string $hash password hash to check
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* @return boolean true if the password is marked as enabled
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*/
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function pwd_is_enabled($hash) {
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// disabled passwords have a "!" or "*" at the beginning (old wrong LAM method)
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if ((substr($hash, 0, 2) == "!{") || ((substr($hash, 0, 2) == "*{"))) return false;
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if (substr($hash, 0, 1) == "{") {
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$pos = strrpos($hash, "}");
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// check if hash starts with "!" or "*"
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if ((substr($hash, $pos + 1, 1) == "!") || (substr($hash, $pos + 1, 1) == "*")) return false;
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else return true;
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}
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else return true;
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}
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/**
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* Generates a random password with 12 digits.
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*
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* @return String password
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*/
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function generateRandomPassword() {
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$list = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ.-_';
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$password = '';
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for ($i = 0; $i < 12; $i++) {
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$rand = $_SESSION['ldap']->new_rand() % 65;
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$password .= $list[$rand];
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}
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return $password;
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}
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/**
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* Returns an array with all Samba 3 domain entries under the given suffix
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*
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* @return array list of samba3domain objects
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*/
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function search_domains($server = null, $suffix = null) {
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if ($suffix == null) {
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$suffix = $_SESSION['config']->get_Suffix('smbDomain');
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}
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$ret = array();
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$attr = array("DN", "sambaDomainName", "sambaSID", "sambaNextRid", "sambaNextGroupRid",
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"sambaNextUserRid", "sambaAlgorithmicRidBase", 'sambaMinPwdAge', 'sambaMaxPwdAge');
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if ($server == null) {
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$server = $_SESSION['ldap']->server();
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}
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$units = searchLDAPByAttribute(null, null, 'sambaDomain', $attr, array('smbDomain'));
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// extract attributes
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for ($i = 0; $i < sizeof($units); $i++) {
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$ret[$i] = new samba3domain();
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$ret[$i]->dn = $units[$i]['dn'];
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$ret[$i]->name = $units[$i]['sambadomainname'][0];
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$ret[$i]->SID = $units[$i]['sambasid'][0];
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if (isset($units[$i]['sambanextrid'][0])) $ret[$i]->nextRID = $units[$i]['sambanextrid'][0];
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if (isset($units[$i]['sambanextgrouprid'][0])) $ret[$i]->nextGroupRID = $units[$i]['sambanextgrouprid'][0];
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if (isset($units[$i]['sambanextuserrid'][0])) $ret[$i]->nextUserRID = $units[$i]['sambanextuserrid'][0];
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if (isset($units[$i]['sambaalgorithmicridbase'][0])) $ret[$i]->RIDbase = $units[$i]['sambaalgorithmicridbase'][0];
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if (isset($units[$i]['sambaminpwdage'][0])) $ret[$i]->minPwdAge = $units[$i]['sambaminpwdage'][0];
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if (isset($units[$i]['sambamaxpwdage'][0])) $ret[$i]->maxPwdAge = $units[$i]['sambamaxpwdage'][0];
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}
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return $ret;
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}
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/**
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* Represents a Samba 3 domain entry
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*
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* @package modules
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*/
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class samba3domain {
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/** DN */
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public $dn;
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/** Domain name */
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public $name;
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/** Domain SID */
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public $SID;
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/** Next RID */
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public $nextRID;
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/** Next user RID */
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public $nextUserRID;
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/** Next group RID */
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public $nextGroupRID;
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/** RID base to calculate RIDs, default 1000 */
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public $RIDbase = 1000;
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/** seconds after the password can be changed */
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public $minPwdAge;
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/** seconds after the password must be changed */
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public $maxPwdAge;
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}
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/**
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* Checks if a given value matches the selected regular expression.
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*
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* @param string $argument value to check
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* @param string $regexp pattern name
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* @return boolean true if matches, otherwise false
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*/
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function get_preg($argument, $regexp) {
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/* Bug in php preg_match doesn't work correct with utf8
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*/
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$language = explode(":", $_SESSION['language']);
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$language2 = explode ('.', $language[0]);
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setlocale(LC_ALL, $language2[0]);
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// First we check "positive" cases
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$pregexpr = '';
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switch ($regexp) {
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case 'password':
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$pregexpr = '/^([[:alnum:]\\^\\ \\|\\#\\*\\,\\.\\;\\:\\_\\+\\!\\%\\&\\/\\?\\{\\(\\)\\}\\[\\]\\$@=-])*$/u';
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break;
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case 'groupname': // all letters, numbers, space and ._- are allowed characters
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case 'username':
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case 'hostname':
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$pregexpr = '/^([[:alnum:]@\\.\\ \\_\\$-])+$/u';
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break;
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case 'usernameList': // comma separated list of user names
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case 'groupnameList': // comma separated list of group names
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$pregexpr = '/^([[:alnum:]@\\.\\ \\_-])+(,([[:alnum:]@\\.\\ \\_-])+)*$/u';
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break;
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case 'realname': // Allow all but \, <, >, =, $, ?
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case 'cn':
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$pregexpr = '/^[^\\\<>=\\$\\?]+(\\$)?$/';
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break;
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case "telephone": // Allow letters, numbers, space, brackets, /-+.
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$pregexpr = '/^(\\+)*([0-9a-zA-Z\\.\\ \\(\\)\\/-])*$/';
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break;
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case "email":
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$pregexpr = '/^([0-9a-zA-Z\\._-])+[@]([0-9a-zA-Z-])+([.]([0-9a-zA-Z-])+)*$/';
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break;
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case "mailLocalAddress":
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$pregexpr = '/^([0-9a-zA-Z\\._-])+([@]([0-9a-zA-Z-])+([.]([0-9a-zA-Z-])+)*)?$/';
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break;
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case "postalAddress": // Allow all but \, <, >, =, $, ?
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case "postalCode":
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case "street":
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case "title":
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case "employeeType":
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case "businessCategory":
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$pregexpr = '/^[^\\\<>=\\$\\?]*$/';
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break;
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case "homeDirectory": // Homapath, /path/......
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$pregexpr = '/^([\/]([[:alnum:]@\\$\\.\\ \\_-])+)+(\/)?$/u';
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break;
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case "digit": // Normal number
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$pregexpr = '/^[[:digit:]]*$/';
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break;
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case "UNC": // UNC Path, e.g. \\server\share\folder\...
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$pregexpr = '/^((([\\\][\\\])|(%))([a-zA-Z0-9%\\.-])+)([\\\]([[:alnum:]%\\.\\$\\ \\_-])+)+$/u';
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break;
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case "logonscript": // path to login-script. normal unix file
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$pregexpr = '/^(([\/\\\])*([[:alnum:]%\\.\\ \\$\\_-])+([\/\\\]([[:alnum:]%\\.\\ \\$\\_-])+)*((\\.bat)|(\\.cmd)|(\\.exe)|(\\.vbs)))*$/u';
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break;
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case "workstations": // comma separated list with windows-hosts
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$pregexpr = '/^(([a-zA-Z0-9\\.\\_-])+(,[a-zA-Z0-9\\.\\_-])*)*$/';
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break;
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case "domainname": // Windows Domainname
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$pregexpr = '/^([A-Za-z0-9\\.\\_-])+$/';
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break;
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case "unixhost": // Unix hosts
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$pregexpr = '/^([a-z0-9,\\.\\*_-])*$/';
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break;
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case 'digit2': // Same as digit but also -1
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$pregexpr = '/^(([-][1])|([[:digit:]]*))$/';
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break;
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case 'gecos':
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$pregexpr = '/^[a-zA-z0-9 \\._-]+([,][a-zA-z0-9 \\._-]+)*$/';
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break;
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case 'macAddress':
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$pregexpr = '/^[0-9a-fA-F]{2}(:[0-9a-fA-F]{2}){5}$/';
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break;
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case 'date':
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$pregexpr = '/^((0?[1-9])|([1-2][0-9])|30|31)\\-((0?[1-9])|(1[0-2]))\\-[1-3][0-9][0-9][0-9]$/';
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break;
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case 'date2':
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$pregexpr = '/^((0[1-9])|([1-2][0-9])|30|31)\\.((0[1-9])|(1[0-2]))\\.[1-3][0-9][0-9][0-9]$/';
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break;
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case 'sambaLogonHours':
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$pregexpr = '/^[0-9a-fA-F]{42}$/';
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break;
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case 'DNSname':
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$pregexpr = '/^[0-9a-zA-Z_-]+(\\.[0-9a-zA-Z_-]+)*$/';
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break;
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case 'nis_alias':
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$pregexpr = '/^([[:alnum:]@\\.\\ \\_-])+$/u';
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break;
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case 'nis_recipient':
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$pregexpr = '/^([[:alnum:]@\\.\\ \\_-])+$/u';
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break;
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case 'country': // Allow all letters and space
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$pregexpr = '/^[[:alpha:]]([[:alpha:] ])+$/u';
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break;
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case 'dn': // LDAP DN
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$pregexpr = '/^([^=,]+=[^=,]+)(,([^=,]+=[^=,]+))*$/';
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break;
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case 'domainSID': // Samba domain SID
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$pregexpr = "/^S\\-[0-9]\\-[0-9]\\-[0-9]{2,2}\\-[0-9]+\\-[0-9]+\\-[0-9]+$/";
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case 'ip': // IP address
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$pregexpr = '/^[0-9]{1,3}[.][0-9]{1,3}[.][0-9]{1,3}[.][0-9]{1,3}$/';
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break;
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}
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|
if ($pregexpr!='')
|
|
if (preg_match($pregexpr, $argument)) {
|
|
/* Bug in php preg_match doesn't work correct with utf8
|
|
*/
|
|
setlocale(LC_ALL, $language[0]);
|
|
return true;
|
|
}
|
|
// Now we check "negative" cases, characters which are not allowed
|
|
$pregexpr = '';
|
|
switch ($regexp) {
|
|
case "!lower":
|
|
$pregexpr = '/[[:lower:]]/';
|
|
break;
|
|
case "!upper":
|
|
$pregexpr = '/[[:upper:]]/';
|
|
break;
|
|
case "!digit":
|
|
$pregexpr = '/[[:digit:]]/';
|
|
break;
|
|
}
|
|
if ($pregexpr!='')
|
|
if (!preg_match($pregexpr, $argument)) {
|
|
/* Bug in php preg_match doesn't work correct with utf8
|
|
*/
|
|
setlocale(LC_ALL, $language[0]);
|
|
return true;
|
|
}
|
|
/* Bug in php preg_match doesn't work correct with utf8
|
|
*/
|
|
setlocale(LC_ALL, $language[0]);
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Escapes any special characters in an LDAP DN.
|
|
*
|
|
* @param String $dn DN
|
|
* @return String escaped DN
|
|
*/
|
|
function escapeDN($dn) {
|
|
$dn = preg_replace('/[ ]*,[ ]*/', ',', $dn);
|
|
return str_replace(
|
|
array(')', '(', ' ', '*'),
|
|
array('\\29', '\\28', '\\20', '\\2a'),
|
|
$dn
|
|
);
|
|
}
|
|
|
|
/**
|
|
* This will search the given LDAP suffix for all entries which have the given attribute.
|
|
*
|
|
* @param String $name attribute name (may be null)
|
|
* @param String $value attribute value
|
|
* @param String $objectClass object class (may be null)
|
|
* @param array $attributes list of attributes to return
|
|
* @param array $scopes account types
|
|
* @return array list of found entries
|
|
*/
|
|
function searchLDAPByAttribute($name, $value, $objectClass, $attributes, $scopes) {
|
|
$return = array();
|
|
// build filter
|
|
$filter = '';
|
|
$filterParts = array();
|
|
if ($name != null) {
|
|
$filterParts[] = '(' . $name . '=' . $value . ')';
|
|
}
|
|
if ($objectClass != null) {
|
|
$filterParts[] = '(objectClass=' . $objectClass . ')';
|
|
}
|
|
if (sizeof($filterParts) == 1) {
|
|
$filter = $filterParts[0];
|
|
}
|
|
elseif (sizeof($filterParts) > 1) {
|
|
$filter = '(& ' . implode(' ', $filterParts) . ')';
|
|
}
|
|
for ($s = 0; $s < sizeof($scopes); $s++) {
|
|
// search LDAP
|
|
$sr = @ldap_search($_SESSION['ldap']->server(), escapeDN($_SESSION['config']->get_Suffix($scopes[$s])),
|
|
$filter, $attributes, 0, $_SESSION['config']->get_searchLimit(), 0, LDAP_DEREF_NEVER);
|
|
if ($sr) {
|
|
$entries = ldap_get_entries($_SESSION['ldap']->server(), $sr);
|
|
if ($entries) {
|
|
$return = array_merge($return, cleanLDAPResult($entries));
|
|
}
|
|
@ldap_free_result($sr);
|
|
}
|
|
}
|
|
return $return;
|
|
}
|
|
|
|
/**
|
|
* This will search the given LDAP suffix for all entries which match the given filter.
|
|
*
|
|
* @param String $filter
|
|
* @param array $attributes list of attributes to return
|
|
* @param array $scopes account types
|
|
* @return array list of found entries
|
|
*/
|
|
function searchLDAPByFilter($filter, $attributes, $scopes) {
|
|
$return = array();
|
|
for ($s = 0; $s < sizeof($scopes); $s++) {
|
|
// search LDAP
|
|
$sr = @ldap_search($_SESSION['ldap']->server(), escapeDN($_SESSION['config']->get_Suffix($scopes[$s])),
|
|
$filter, $attributes, 0, $_SESSION['config']->get_searchLimit(), 0, LDAP_DEREF_NEVER);
|
|
if ($sr) {
|
|
$entries = ldap_get_entries($_SESSION['ldap']->server(), $sr);
|
|
if ($entries) {
|
|
$return = array_merge($return, cleanLDAPResult($entries));
|
|
}
|
|
@ldap_free_result($sr);
|
|
}
|
|
}
|
|
return $return;
|
|
}
|
|
|
|
/**
|
|
* Runs an LDAP search.
|
|
*
|
|
* @param String $suffix LDAP suffix
|
|
* @param String $filter filter
|
|
* @param array $attributes list of attributes to return
|
|
* @return array list of found entries
|
|
*/
|
|
function searchLDAP($suffix, $filter, $attributes) {
|
|
$return = array();
|
|
$sr = @ldap_search($_SESSION['ldap']->server(), escapeDN($suffix), $filter, $attributes,
|
|
0, $_SESSION['config']->get_searchLimit(), 0, LDAP_DEREF_NEVER);
|
|
if ($sr) {
|
|
$entries = ldap_get_entries($_SESSION['ldap']->server(), $sr);
|
|
if ($entries) {
|
|
$return = cleanLDAPResult($entries);
|
|
}
|
|
@ldap_free_result($sr);
|
|
}
|
|
return $return;
|
|
}
|
|
|
|
/**
|
|
* Returns the error number of the last LDAP command.
|
|
*
|
|
* @return int error number (0 if all was ok)
|
|
*/
|
|
function getLastLDAPErrorNumber() {
|
|
return ldap_errno($_SESSION["ldap"]->server());
|
|
}
|
|
|
|
/**
|
|
* Returns the error message of the last LDAP command.
|
|
*
|
|
* @return String error message
|
|
*/
|
|
function getLastLDAPErrorMessage() {
|
|
return ldap_error($_SESSION["ldap"]->server());
|
|
}
|
|
|
|
/**
|
|
* Cleans the result of an LDAP search.
|
|
* This will remove all 'count' entries and also all numeric array keys.
|
|
*
|
|
* @param array $entries LDAP entries in format $entries[entry number][attribute name][attribute values]
|
|
* @return array cleaned entries
|
|
*/
|
|
function cleanLDAPResult($entries) {
|
|
if (isset($entries['count'])) {
|
|
unset($entries['count']);
|
|
}
|
|
// iterate over all results
|
|
for ($e = 0; $e < sizeof($entries); $e++) {
|
|
// remove 'count' entries and numerical entries
|
|
for ($i = 0; $i < $entries[$e]['count']; $i++) {
|
|
if (isset($entries[$e][$i])) {
|
|
unset($entries[$e][$i]);
|
|
}
|
|
}
|
|
unset($entries[$e]['count']);
|
|
$attrNames = array_keys($entries[$e]);
|
|
for ($i = 0; $i < sizeof($attrNames); $i++) {
|
|
if (is_array($entries[$e][$attrNames[$i]])) {
|
|
unset($entries[$e][$attrNames[$i]]['count']);
|
|
}
|
|
}
|
|
}
|
|
return $entries;
|
|
}
|
|
|
|
|
|
?>
|