80e8c18b5392cc1d881f13b1bee0b0d2c45cbec3
1 <?php
2 /*
3 This code is part of GOsa (https://gosa.gonicus.de)
4 Copyright (C) 2004 Cajus Pollmeier
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
22 class passwordMethod
23 {
24 var $config = false;
25 var $attrs= array();
27 // Konstructor
28 function passwordMethod($config)
29 {
30 }
32 // Loads Methods in annother way as get_available_methods do, (For setup ..)
33 // and loads them,.
34 function get_available_methods_if_not_loaded($path_to_load="../include")
35 {
36 $oh = opendir($path_to_load);
37 $i = 0;
38 $ret = false;
39 while ($file = readdir($oh)) {
40 $one = strtolower($file);
41 if((strstr($one,"class_password-methods-" ))&&($one[0]!=".")){
42 require_once($file);
43 }
44 }
45 return(passwordMethod::get_available_methods());
46 }
51 // Crypts a single string, with given Method
52 function crypt_single_str($string,$method)
53 {
54 $available = passwordMethod::get_available_methods();
55 if(!is_array($available))
56 {
57 $available = passwordMethod::get_available_methods_if_not_loaded();
58 }
60 $test = new $available[$method](false);
61 $newpass = $test->generate_hash($string);
62 return( $newpass);
63 }
66 // this function returns all loaded classes for password encryption
67 function get_available_methods()
68 {
69 $ret =false;
70 $all = get_declared_classes();
71 $i = 0;
72 foreach($all as $one) {
73 if(preg_match('/passwordMethod/i', $one) && !preg_match("/^passwordMethod$/i", $one)){
74 $name = preg_replace ("/passwordMethod/i", "", $one);
75 $test = new $one(false);
76 if($test->is_available()) {
77 $plugname= strtolower(preg_replace ("/passwordMethod/i","",$one));
78 $ret['name'][$i]= $plugname;
79 $ret['class'][$i]=$one;
80 $ret[$i]['name']= $plugname;
81 $ret[$i]['class']= $one;
82 $ret[$plugname]=$one;
83 $i++;
84 }
85 }
86 }
87 return($ret);
88 }
90 }
92 // change_password, changes the Password, of the given dn
93 function change_password ($dn, $password, $mode=0, $hash= "")
94 {
95 global $config;
96 $newpass= "";
98 /* Convert to lower. Methods are lowercase */
99 $hash= strtolower($hash);
101 // Get all available encryption Methods
103 // NON STATIC CALL :)
104 $tmp = new passwordMethod($_SESSION['config']);
105 $available = $tmp->get_available_methods();
107 // read current password entry for $dn, to detect the encryption Method
108 $ldap = $config->get_ldap_link();
109 $ldap->cat ($dn, array("shadowLastChange", "userPassword", "uid"));
110 $attrs = $ldap->fetch ();
112 // Set encryption type to clear if required
113 if (isset($attrs['userPassword'][0]) && preg_match('/^[^{}]+$/', $attrs['userPassword'][0]) && $hash == ""){
114 $hash= "clear";
115 }
117 // Detect the encryption Method
118 if ( (isset($attrs['userPassword'][0]) && preg_match ("/^{([^}]+)}(.+)/", $attrs['userPassword'][0], $matches)) || $hash != ""){
120 /* Check for supported algorithm */
121 mt_srand((double) microtime()*1000000);
123 /* Extract used hash */
124 if ($hash == ""){
125 $hash= strtolower($matches[1]);
126 }
129 // Crypt with the detected Method
130 $test = new $available[$hash]($config);
131 $test->attrs= $attrs;
132 $newpass = $test->generate_hash($password);
134 } else {
135 // Crypt it by default
136 $test = new $available['md5']($config);
137 $newpass = $test->generate_hash($password);
138 }
140 // Update shadow timestamp?
141 if (isset($attrs["shadowLastChange"][0])){
142 $shadow= (int)(date("U") / 86400);
143 } else {
144 $shadow= 0;
145 }
147 // Write back modified entry
148 $ldap->cd($dn);
149 $attrs= array();
151 // Not for groups
152 if ($mode == 0){
154 if ($shadow != 0){
155 $attrs['shadowLastChange']= $shadow;
156 }
158 // Create SMB Password
159 $attrs= generate_smb_nt_hash($password);
160 }
162 $attrs['userPassword']= array();
163 $attrs['userPassword']= $newpass;
165 $ldap->modify($attrs);
167 new log("modify","users/passwordMethod",$dn,array_keys($attrs),$ldap->get_error());
169 if ($ldap->error != 'Success') {
170 print_red(sprintf(_("Setting the password failed. LDAP server says '%s'."),
171 $ldap->get_error()));
172 } else {
174 /* Find postmodify entries for this class */
175 $command= search_config($config->data['MENU'], "password", "POSTMODIFY");
177 if ($command != ""){
178 /* Walk through attribute list */
179 $command= preg_replace("/%userPassword/", $password, $command);
180 $command= preg_replace("/%dn/", $dn, $command);
182 if (check_command($command)){
183 @DEBUG (DEBUG_SHELL, __LINE__, __FUNCTION__, __FILE__, $command, "Execute");
184 exec($command);
185 } else {
186 $message= sprintf(_("Command '%s', specified as POSTMODIFY for plugin '%s' doesn't seem to exist."), $command, "password");
187 print_red ($message);
188 }
189 }
190 }
191 }
194 // Return something like array['sambaLMPassword']= "lalla..."
195 function generate_smb_nt_hash($password)
196 {
197 global $config;
198 $tmp= $config->data['MAIN']['SMBHASH']." ".escapeshellarg($password);
199 @DEBUG (DEBUG_LDAP, __LINE__, __FUNCTION__, __FILE__, $tmp, "Execute");
201 exec($tmp, $ar);
202 flush();
203 reset($ar);
204 $hash= current($ar);
205 if ($hash == "")
206 {
207 print_red (_("Setting for SMBHASH in gosa.conf is incorrect! Can't change Samba password."));
208 }
209 else
210 {
211 list($lm,$nt)= split (":", trim($hash));
213 if ($config->current['SAMBAVERSION'] == 3)
214 {
215 $attrs['sambaLMPassword']= $lm;
216 $attrs['sambaNTPassword']= $nt;
217 $attrs['sambaPwdLastSet']= date('U');
218 $attrs['sambaBadPasswordCount']= "0";
219 $attrs['sambaBadPasswordTime']= "0";
220 } else {
221 $attrs['lmPassword']= $lm;
222 $attrs['ntPassword']= $nt;
223 $attrs['pwdLastSet']= date('U');
224 }
225 return($attrs);
226 }
227 }
229 function crypt_single($string,$enc_type )
230 {
231 if(!class_exists("passwordMethod")){
232 require_once("class_password-methods.inc");
233 }
234 return( passwordMethod::crypt_single_str($string,$enc_type));
235 }
237 // vim:tabstop=2:expandtab:shiftwidth=2:filetype=php:syntax:ruler:
238 ?>