1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319
|
<?php
/**
* Plaintext authentication backend
*
* @license GPL 2 (http://www.gnu.org/licenses/gpl.html)
* @author Andreas Gohr <andi@splitbrain.org>
* @author Chris Smith <chris@jalakai.co.uk>
*/
define('DOKU_AUTH', dirname(__FILE__));
require_once(DOKU_AUTH.'/basic.class.php');
define('AUTH_USERFILE',DOKU_CONF.'users.auth.php');
// we only accept page ids for auth_plain
if(isset($_REQUEST['u']))
$_REQUEST['u'] = cleanID($_REQUEST['u']);
if(isset($_REQUEST['acl_user']))
$_REQUEST['acl_user'] = cleanID($_REQUEST['acl_user']);
// the same goes for password reset requests
if(isset($_POST['login'])){
$_POST['login'] = cleanID($_POST['login']);
}
class auth_plain extends auth_basic {
var $users = null;
var $_pattern = array();
/**
* Constructor
*
* Carry out sanity checks to ensure the object is
* able to operate. Set capabilities.
*
* @author Christopher Smith <chris@jalakai.co.uk>
*/
function auth_plain() {
if (!@is_readable(AUTH_USERFILE)){
$this->success = false;
}else{
if(@is_writable(AUTH_USERFILE)){
$this->cando['addUser'] = true;
$this->cando['delUser'] = true;
$this->cando['modLogin'] = true;
$this->cando['modPass'] = true;
$this->cando['modName'] = true;
$this->cando['modMail'] = true;
$this->cando['modGroups'] = true;
}
$this->cando['getUsers'] = true;
$this->cando['getUserCount'] = true;
}
}
/**
* Check user+password [required auth function]
*
* Checks if the given user exists and the given
* plaintext password is correct
*
* @author Andreas Gohr <andi@splitbrain.org>
* @return bool
*/
function checkPass($user,$pass){
$userinfo = $this->getUserData($user);
if ($userinfo === false) return false;
return auth_verifyPassword($pass,$this->users[$user]['pass']);
}
/**
* Return user info
*
* Returns info about the given user needs to contain
* at least these fields:
*
* name string full name of the user
* mail string email addres of the user
* grps array list of groups the user is in
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function getUserData($user){
if($this->users === null) $this->_loadUserData();
return isset($this->users[$user]) ? $this->users[$user] : false;
}
/**
* Create a new User
*
* Returns false if the user already exists, null when an error
* occured and true if everything went well.
*
* The new user will be added to the default group by this
* function if grps are not specified (default behaviour).
*
* @author Andreas Gohr <andi@splitbrain.org>
* @author Chris Smith <chris@jalakai.co.uk>
*/
function createUser($user,$pwd,$name,$mail,$grps=null){
global $conf;
// user mustn't already exist
if ($this->getUserData($user) !== false) return false;
$pass = auth_cryptPassword($pwd);
// set default group if no groups specified
if (!is_array($grps)) $grps = array($conf['defaultgroup']);
// prepare user line
$groups = join(',',$grps);
$userline = join(':',array($user,$pass,$name,$mail,$groups))."\n";
if (io_saveFile(AUTH_USERFILE,$userline,true)) {
$this->users[$user] = compact('pass','name','mail','grps');
return $pwd;
}
msg('The '.AUTH_USERFILE.' file is not writable. Please inform the Wiki-Admin',-1);
return null;
}
/**
* Modify user data
*
* @author Chris Smith <chris@jalakai.co.uk>
* @param $user nick of the user to be changed
* @param $changes array of field/value pairs to be changed (password will be clear text)
* @return bool
*/
function modifyUser($user, $changes) {
global $conf;
global $ACT;
global $INFO;
// sanity checks, user must already exist and there must be something to change
if (($userinfo = $this->getUserData($user)) === false) return false;
if (!is_array($changes) || !count($changes)) return true;
// update userinfo with new data, remembering to encrypt any password
$newuser = $user;
foreach ($changes as $field => $value) {
if ($field == 'user') {
$newuser = $value;
continue;
}
if ($field == 'pass') $value = auth_cryptPassword($value);
$userinfo[$field] = $value;
}
$groups = join(',',$userinfo['grps']);
$userline = join(':',array($newuser, $userinfo['pass'], $userinfo['name'], $userinfo['mail'], $groups))."\n";
if (!$this->deleteUsers(array($user))) {
msg('Unable to modify user data. Please inform the Wiki-Admin',-1);
return false;
}
if (!io_saveFile(AUTH_USERFILE,$userline,true)) {
msg('There was an error modifying your user data. You should register again.',-1);
// FIXME, user has been deleted but not recreated, should force a logout and redirect to login page
$ACT == 'register';
return false;
}
$this->users[$newuser] = $userinfo;
return true;
}
/**
* Remove one or more users from the list of registered users
*
* @author Christopher Smith <chris@jalakai.co.uk>
* @param array $users array of users to be deleted
* @return int the number of users deleted
*/
function deleteUsers($users) {
if (!is_array($users) || empty($users)) return 0;
if ($this->users === null) $this->_loadUserData();
$deleted = array();
foreach ($users as $user) {
if (isset($this->users[$user])) $deleted[] = preg_quote($user,'/');
}
if (empty($deleted)) return 0;
$pattern = '/^('.join('|',$deleted).'):/';
if (io_deleteFromFile(AUTH_USERFILE,$pattern,true)) {
foreach ($deleted as $user) unset($this->users[$user]);
return count($deleted);
}
// problem deleting, reload the user list and count the difference
$count = count($this->users());
$this->_loadUserData();
$count -= $count($this->users());
return $count;
}
/**
* Return a count of the number of user which meet $filter criteria
*
* @author Chris Smith <chris@jalakai.co.uk>
*/
function getUserCount($filter=array()) {
if($this->users === null) $this->_loadUserData();
if (!count($filter)) return count($this->users);
$count = 0;
$this->_constructPattern($filter);
foreach ($this->users as $user => $info) {
$count += $this->_filter($user, $info);
}
return $count;
}
/**
* Bulk retrieval of user data
*
* @author Chris Smith <chris@jalakai.co.uk>
* @param start index of first user to be returned
* @param limit max number of users to be returned
* @param filter array of field/pattern pairs
* @return array of userinfo (refer getUserData for internal userinfo details)
*/
function retrieveUsers($start=0,$limit=0,$filter=array()) {
if ($this->users === null) $this->_loadUserData();
ksort($this->users);
$i = 0;
$count = 0;
$out = array();
$this->_constructPattern($filter);
foreach ($this->users as $user => $info) {
if ($this->_filter($user, $info)) {
if ($i >= $start) {
$out[$user] = $info;
$count++;
if (($limit > 0) && ($count >= $limit)) break;
}
$i++;
}
}
return $out;
}
/**
* Load all user data
*
* loads the user file into a datastructure
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function _loadUserData(){
$this->users = array();
if(!@file_exists(AUTH_USERFILE)) return;
$lines = file(AUTH_USERFILE);
foreach($lines as $line){
$line = preg_replace('/#.*$/','',$line); //ignore comments
$line = trim($line);
if(empty($line)) continue;
$row = split(":",$line,5);
$groups = split(",",$row[4]);
$this->users[$row[0]]['pass'] = $row[1];
$this->users[$row[0]]['name'] = urldecode($row[2]);
$this->users[$row[0]]['mail'] = $row[3];
$this->users[$row[0]]['grps'] = $groups;
}
}
/**
* return 1 if $user + $info match $filter criteria, 0 otherwise
*
* @author Chris Smith <chris@jalakai.co.uk>
*/
function _filter($user, $info) {
// FIXME
foreach ($this->_pattern as $item => $pattern) {
if ($item == 'user') {
if (!preg_match($pattern, $user)) return 0;
} else if ($item == 'grps') {
if (!count(preg_grep($pattern, $info['grps']))) return 0;
} else {
if (!preg_match($pattern, $info[$item])) return 0;
}
}
return 1;
}
function _constructPattern($filter) {
$this->_pattern = array();
foreach ($filter as $item => $pattern) {
// $this->_pattern[$item] = '/'.preg_quote($pattern,"/").'/'; // don't allow regex characters
$this->_pattern[$item] = '/'.str_replace('/','\/',$pattern).'/'; // allow regex characters
}
}
}
//Setup VIM: ex: et ts=2 enc=utf-8 :
|