1 <?php
2 /*
3 * This code is part of GOsa (http://www.gosa-project.org)
4 * Copyright (C) 2003-2008 GONICUS GmbH
5 *
6 * ID: $$Id$$
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 */
23 class passwordMethodCrypt extends passwordMethod
24 {
25 function passwordMethodCrypt($config)
26 {
27 }
30 function is_available()
31 {
32 if(function_exists("crypt")){
33 return true;
34 }else{
35 return false;
36 }
37 }
40 function generate_hash($pwd)
41 {
42 if ($this->hash == "crypt/standard-des"){
43 $salt = "";
44 for ($i = 0; $i < 2; $i++) {
45 $salt .= get_random_char();
46 }
47 }
49 if ($this->hash == "crypt/enhanced-des"){
50 $salt = "_";
51 for ($i = 0; $i < 8; $i++) {
52 $salt .= get_random_char();
53 }
54 }
56 if ($this->hash == "crypt/md5"){
57 $salt = "\$1\$";
58 for ($i = 0; $i < 8; $i++) {
59 $salt .= get_random_char();
60 }
61 $salt .= "\$";
62 }
64 if ($this->hash == "crypt/blowfish"){
65 $salt = "\$2a\$07\$";
66 for ($i = 0; $i < CRYPT_SALT_LENGTH; $i++) {
67 $salt .= get_random_char();
68 }
69 $salt .= "\$";
70 }
72 return "{CRYPT}".crypt($pwd, $salt);
73 }
76 function get_hash_name()
77 {
78 $hashes= array();
79 if (CRYPT_STD_DES == 1) {
80 $hashes[]= "crypt/standard-des";
81 }
83 if (CRYPT_EXT_DES == 1) {
84 $hashes[]= "crypt/enhanced-des";
85 }
87 if (CRYPT_MD5 == 1) {
88 $hashes[]= "crypt/md5";
89 }
91 if (CRYPT_BLOWFISH == 1) {
92 $hashes[]= "crypt/blowfish";
93 }
95 return $hashes;
96 }
99 function _extract_method($password_hash)
100 {
101 if (!preg_match('/^{crypt}/i', $password_hash)){
102 return "";
103 }
105 $password_hash= preg_replace('/^{[^}]+}!?/', '', $password_hash);
107 if (preg_match("/^[a-zA-Z0-9.\/][a-zA-Z0-9.\/]/", $password_hash)){
108 return "crypt/standard-des";
109 }
111 if (preg_match("/^_[a-zA-Z0-9.\/]/", $password_hash)){
112 return "crypt/enhanced-des";
113 }
115 if (preg_match('/^\$1\$/', $password_hash)){
116 return "crypt/md5";
117 }
119 if (preg_match('/^(\$2\$|\$2a\$)/', $password_hash)){
120 return "crypt/blowfish";
121 }
123 return "";
124 }
126 }
128 // vim:tabstop=2:expandtab:shiftwidth=2:filetype=php:syntax:ruler:
129 ?>