1<?php 2 3/** 4 * Active Directory authentication backend for DokuWiki 5 * 6 * This makes authentication with a Active Directory server much easier 7 * than when using the normal LDAP backend by utilizing the adLDAP library 8 * 9 * Usage: 10 * Set DokuWiki's local.protected.php auth setting to read 11 * 12 * $conf['authtype'] = 'authad'; 13 * 14 * $conf['plugin']['authad']['account_suffix'] = '@my.domain.org'; 15 * $conf['plugin']['authad']['base_dn'] = 'DC=my,DC=domain,DC=org'; 16 * $conf['plugin']['authad']['domain_controllers'] = 'srv1.domain.org,srv2.domain.org'; 17 * 18 * //optional: 19 * $conf['plugin']['authad']['sso'] = 1; 20 * $conf['plugin']['authad']['admin_username'] = 'root'; 21 * $conf['plugin']['authad']['admin_password'] = 'pass'; 22 * $conf['plugin']['authad']['real_primarygroup'] = 1; 23 * $conf['plugin']['authad']['use_ssl'] = 1; 24 * $conf['plugin']['authad']['use_tls'] = 1; 25 * $conf['plugin']['authad']['debug'] = 1; 26 * // warn user about expiring password this many days in advance: 27 * $conf['plugin']['authad']['expirywarn'] = 5; 28 * 29 * // get additional information to the userinfo array 30 * // add a list of comma separated ldap contact fields. 31 * $conf['plugin']['authad']['additional'] = 'field1,field2'; 32 * 33 * @license GPL 2 (http://www.gnu.org/licenses/gpl.html) 34 * @author James Van Lommel <jamesvl@gmail.com> 35 * @link http://www.nosq.com/blog/2005/08/ldap-activedirectory-and-dokuwiki/ 36 * @author Andreas Gohr <andi@splitbrain.org> 37 * @author Jan Schumann <js@schumann-it.com> 38 */ 39class auth_plugin_authad extends DokuWiki_Auth_Plugin 40{ 41 42 /** 43 * @var array hold connection data for a specific AD domain 44 */ 45 protected $opts = array(); 46 47 /** 48 * @var array open connections for each AD domain, as adLDAP objects 49 */ 50 protected $adldap = array(); 51 52 /** 53 * @var bool message state 54 */ 55 protected $msgshown = false; 56 57 /** 58 * @var array user listing cache 59 */ 60 protected $users = array(); 61 62 /** 63 * @var array filter patterns for listing users 64 */ 65 protected $pattern = array(); 66 67 protected $grpsusers = array(); 68 69 /** 70 * Constructor 71 */ 72 public function __construct() 73 { 74 global $INPUT; 75 parent::__construct(); 76 77 require_once(DOKU_PLUGIN.'authad/adLDAP/adLDAP.php'); 78 require_once(DOKU_PLUGIN.'authad/adLDAP/classes/adLDAPUtils.php'); 79 80 // we load the config early to modify it a bit here 81 $this->loadConfig(); 82 83 // additional information fields 84 if (isset($this->conf['additional'])) { 85 $this->conf['additional'] = str_replace(' ', '', $this->conf['additional']); 86 $this->conf['additional'] = explode(',', $this->conf['additional']); 87 } else $this->conf['additional'] = array(); 88 89 // ldap extension is needed 90 if (!function_exists('ldap_connect')) { 91 if ($this->conf['debug']) 92 msg("AD Auth: PHP LDAP extension not found.", -1); 93 $this->success = false; 94 return; 95 } 96 97 // Prepare SSO 98 if (!empty($_SERVER['REMOTE_USER'])) { 99 // make sure the right encoding is used 100 if ($this->getConf('sso_charset')) { 101 $_SERVER['REMOTE_USER'] = iconv($this->getConf('sso_charset'), 'UTF-8', $_SERVER['REMOTE_USER']); 102 } elseif (!\dokuwiki\Utf8\Clean::isUtf8($_SERVER['REMOTE_USER'])) { 103 $_SERVER['REMOTE_USER'] = utf8_encode($_SERVER['REMOTE_USER']); 104 } 105 106 // trust the incoming user 107 if ($this->conf['sso']) { 108 $_SERVER['REMOTE_USER'] = $this->cleanUser($_SERVER['REMOTE_USER']); 109 110 // we need to simulate a login 111 if (empty($_COOKIE[DOKU_COOKIE])) { 112 $INPUT->set('u', $_SERVER['REMOTE_USER']); 113 $INPUT->set('p', 'sso_only'); 114 } 115 } 116 } 117 118 // other can do's are changed in $this->_loadServerConfig() base on domain setup 119 $this->cando['modName'] = (bool)$this->conf['update_name']; 120 $this->cando['modMail'] = (bool)$this->conf['update_mail']; 121 $this->cando['getUserCount'] = true; 122 } 123 124 /** 125 * Load domain config on capability check 126 * 127 * @param string $cap 128 * @return bool 129 */ 130 public function canDo($cap) 131 { 132 //capabilities depend on config, which may change depending on domain 133 $domain = $this->getUserDomain($_SERVER['REMOTE_USER']); 134 $this->loadServerConfig($domain); 135 return parent::canDo($cap); 136 } 137 138 /** 139 * Check user+password [required auth function] 140 * 141 * Checks if the given user exists and the given 142 * plaintext password is correct by trying to bind 143 * to the LDAP server 144 * 145 * @author James Van Lommel <james@nosq.com> 146 * @param string $user 147 * @param string $pass 148 * @return bool 149 */ 150 public function checkPass($user, $pass) 151 { 152 if ($_SERVER['REMOTE_USER'] && 153 $_SERVER['REMOTE_USER'] == $user && 154 $this->conf['sso'] 155 ) return true; 156 157 $adldap = $this->initAdLdap($this->getUserDomain($user)); 158 if (!$adldap) return false; 159 160 try { 161 return $adldap->authenticate($this->getUserName($user), $pass); 162 } catch (adLDAPException $e) { 163 // shouldn't really happen 164 return false; 165 } 166 } 167 168 /** 169 * Return user info [required auth function] 170 * 171 * Returns info about the given user needs to contain 172 * at least these fields: 173 * 174 * name string full name of the user 175 * mail string email address of the user 176 * grps array list of groups the user is in 177 * 178 * This AD specific function returns the following 179 * addional fields: 180 * 181 * dn string distinguished name (DN) 182 * uid string samaccountname 183 * lastpwd int timestamp of the date when the password was set 184 * expires true if the password expires 185 * expiresin int seconds until the password expires 186 * any fields specified in the 'additional' config option 187 * 188 * @author James Van Lommel <james@nosq.com> 189 * @param string $user 190 * @param bool $requireGroups (optional) - ignored, groups are always supplied by this plugin 191 * @return array 192 */ 193 public function getUserData($user, $requireGroups = true) 194 { 195 global $conf; 196 global $lang; 197 global $ID; 198 $adldap = $this->initAdLdap($this->getUserDomain($user)); 199 if (!$adldap) return array(); 200 201 if ($user == '') return array(); 202 203 $fields = array('mail', 'displayname', 'samaccountname', 'lastpwd', 'pwdlastset', 'useraccountcontrol'); 204 205 // add additional fields to read 206 $fields = array_merge($fields, $this->conf['additional']); 207 $fields = array_unique($fields); 208 $fields = array_filter($fields); 209 210 //get info for given user 211 $result = $adldap->user()->info($this->getUserName($user), $fields); 212 if ($result == false) { 213 return array(); 214 } 215 216 //general user info 217 $info = array(); 218 $info['name'] = $result[0]['displayname'][0]; 219 $info['mail'] = $result[0]['mail'][0]; 220 $info['uid'] = $result[0]['samaccountname'][0]; 221 $info['dn'] = $result[0]['dn']; 222 //last password set (Windows counts from January 1st 1601) 223 $info['lastpwd'] = $result[0]['pwdlastset'][0] / 10000000 - 11644473600; 224 //will it expire? 225 $info['expires'] = !($result[0]['useraccountcontrol'][0] & 0x10000); //ADS_UF_DONT_EXPIRE_PASSWD 226 227 // additional information 228 foreach ($this->conf['additional'] as $field) { 229 if (isset($result[0][strtolower($field)])) { 230 $info[$field] = $result[0][strtolower($field)][0]; 231 } 232 } 233 234 // handle ActiveDirectory memberOf 235 $info['grps'] = $adldap->user()->groups($this->getUserName($user), (bool) $this->opts['recursive_groups']); 236 237 if (is_array($info['grps'])) { 238 foreach ($info['grps'] as $ndx => $group) { 239 $info['grps'][$ndx] = $this->cleanGroup($group); 240 } 241 } 242 243 // always add the default group to the list of groups 244 if (!is_array($info['grps']) || !in_array($conf['defaultgroup'], $info['grps'])) { 245 $info['grps'][] = $conf['defaultgroup']; 246 } 247 248 // add the user's domain to the groups 249 $domain = $this->getUserDomain($user); 250 if ($domain && !in_array("domain-$domain", (array) $info['grps'])) { 251 $info['grps'][] = $this->cleanGroup("domain-$domain"); 252 } 253 254 // check expiry time 255 if ($info['expires'] && $this->conf['expirywarn']) { 256 try { 257 $expiry = $adldap->user()->passwordExpiry($user); 258 if (is_array($expiry)) { 259 $info['expiresat'] = $expiry['expiryts']; 260 $info['expiresin'] = round(($info['expiresat'] - time())/(24*60*60)); 261 262 // if this is the current user, warn him (once per request only) 263 if (($_SERVER['REMOTE_USER'] == $user) && 264 ($info['expiresin'] <= $this->conf['expirywarn']) && 265 !$this->msgshown 266 ) { 267 $msg = sprintf($this->getLang('authpwdexpire'), $info['expiresin']); 268 if ($this->canDo('modPass')) { 269 $url = wl($ID, array('do'=> 'profile')); 270 $msg .= ' <a href="'.$url.'">'.$lang['btn_profile'].'</a>'; 271 } 272 msg($msg); 273 $this->msgshown = true; 274 } 275 } 276 } catch (adLDAPException $e) { 277 // ignore. should usually not happen 278 } 279 } 280 281 return $info; 282 } 283 284 /** 285 * Make AD group names usable by DokuWiki. 286 * 287 * Removes backslashes ('\'), pound signs ('#'), and converts spaces to underscores. 288 * 289 * @author James Van Lommel (jamesvl@gmail.com) 290 * @param string $group 291 * @return string 292 */ 293 public function cleanGroup($group) 294 { 295 $group = str_replace('\\', '', $group); 296 $group = str_replace('#', '', $group); 297 $group = preg_replace('[\s]', '_', $group); 298 $group = \dokuwiki\Utf8\PhpString::strtolower(trim($group)); 299 return $group; 300 } 301 302 /** 303 * Sanitize user names 304 * 305 * Normalizes domain parts, does not modify the user name itself (unlike cleanGroup) 306 * 307 * @author Andreas Gohr <gohr@cosmocode.de> 308 * @param string $user 309 * @return string 310 */ 311 public function cleanUser($user) 312 { 313 $domain = ''; 314 315 // get NTLM or Kerberos domain part 316 list($dom, $user) = explode('\\', $user, 2); 317 if (!$user) $user = $dom; 318 if ($dom) $domain = $dom; 319 list($user, $dom) = explode('@', $user, 2); 320 if ($dom) $domain = $dom; 321 322 // clean up both 323 $domain = \dokuwiki\Utf8\PhpString::strtolower(trim($domain)); 324 $user = \dokuwiki\Utf8\PhpString::strtolower(trim($user)); 325 326 // is this a known, valid domain or do we work without account suffix? if not discard 327 if (!is_array($this->conf[$domain]) && $this->conf['account_suffix'] !== '') { 328 $domain = ''; 329 } 330 331 // reattach domain 332 if ($domain) $user = "$user@$domain"; 333 return $user; 334 } 335 336 /** 337 * Most values in LDAP are case-insensitive 338 * 339 * @return bool 340 */ 341 public function isCaseSensitive() 342 { 343 return false; 344 } 345 346 /** 347 * Create a Search-String useable by adLDAPUsers::all($includeDescription = false, $search = "*", $sorted = true) 348 * 349 * @param array $filter 350 * @return string 351 */ 352 protected function constructSearchString($filter) 353 { 354 if (!$filter) { 355 return '*'; 356 } 357 $adldapUtils = new adLDAPUtils($this->initAdLdap(null)); 358 $result = '*'; 359 if (isset($filter['name'])) { 360 $result .= ')(displayname=*' . $adldapUtils->ldapSlashes($filter['name']) . '*'; 361 unset($filter['name']); 362 } 363 364 if (isset($filter['user'])) { 365 $result .= ')(samAccountName=*' . $adldapUtils->ldapSlashes($filter['user']) . '*'; 366 unset($filter['user']); 367 } 368 369 if (isset($filter['mail'])) { 370 $result .= ')(mail=*' . $adldapUtils->ldapSlashes($filter['mail']) . '*'; 371 unset($filter['mail']); 372 } 373 return $result; 374 } 375 376 /** 377 * Return a count of the number of user which meet $filter criteria 378 * 379 * @param array $filter $filter array of field/pattern pairs, empty array for no filter 380 * @return int number of users 381 */ 382 public function getUserCount($filter = array()) 383 { 384 $adldap = $this->initAdLdap(null); 385 if (!$adldap) { 386 dbglog("authad/auth.php getUserCount(): _adldap not set."); 387 return -1; 388 } 389 if ($filter == array()) { 390 $result = $adldap->user()->all(); 391 } else { 392 $searchString = $this->constructSearchString($filter); 393 $result = $adldap->user()->all(false, $searchString); 394 if (isset($filter['grps'])) { 395 $this->users = array_fill_keys($result, false); 396 /** @var admin_plugin_usermanager $usermanager */ 397 $usermanager = plugin_load("admin", "usermanager", false); 398 $usermanager->setLastdisabled(true); 399 if (!isset($this->grpsusers[$this->filterToString($filter)])) { 400 $this->fillGroupUserArray($filter, $usermanager->getStart() + 3*$usermanager->getPagesize()); 401 } elseif (count($this->grpsusers[$this->filterToString($filter)]) < 402 $usermanager->getStart() + 3*$usermanager->getPagesize() 403 ) { 404 $this->fillGroupUserArray( 405 $filter, 406 $usermanager->getStart() + 407 3*$usermanager->getPagesize() - 408 count($this->grpsusers[$this->filterToString($filter)]) 409 ); 410 } 411 $result = $this->grpsusers[$this->filterToString($filter)]; 412 } else { 413 /** @var admin_plugin_usermanager $usermanager */ 414 $usermanager = plugin_load("admin", "usermanager", false); 415 $usermanager->setLastdisabled(false); 416 } 417 } 418 419 if (!$result) { 420 return 0; 421 } 422 return count($result); 423 } 424 425 /** 426 * 427 * create a unique string for each filter used with a group 428 * 429 * @param array $filter 430 * @return string 431 */ 432 protected function filterToString($filter) 433 { 434 $result = ''; 435 if (isset($filter['user'])) { 436 $result .= 'user-' . $filter['user']; 437 } 438 if (isset($filter['name'])) { 439 $result .= 'name-' . $filter['name']; 440 } 441 if (isset($filter['mail'])) { 442 $result .= 'mail-' . $filter['mail']; 443 } 444 if (isset($filter['grps'])) { 445 $result .= 'grps-' . $filter['grps']; 446 } 447 return $result; 448 } 449 450 /** 451 * Create an array of $numberOfAdds users passing a certain $filter, including belonging 452 * to a certain group and save them to a object-wide array. If the array 453 * already exists try to add $numberOfAdds further users to it. 454 * 455 * @param array $filter 456 * @param int $numberOfAdds additional number of users requested 457 * @return int number of Users actually add to Array 458 */ 459 protected function fillGroupUserArray($filter, $numberOfAdds) 460 { 461 if (isset($this->grpsusers[$this->filterToString($filter)])) { 462 $actualstart = count($this->grpsusers[$this->filterToString($filter)]); 463 } else { 464 $this->grpsusers[$this->filterToString($filter)] = []; 465 $actualstart = 0; 466 } 467 468 $i=0; 469 $count = 0; 470 $this->constructPattern($filter); 471 foreach ($this->users as $user => &$info) { 472 if ($i++ < $actualstart) { 473 continue; 474 } 475 if ($info === false) { 476 $info = $this->getUserData($user); 477 } 478 if ($this->filter($user, $info)) { 479 $this->grpsusers[$this->filterToString($filter)][$user] = $info; 480 if (($numberOfAdds > 0) && (++$count >= $numberOfAdds)) break; 481 } 482 } 483 return $count; 484 } 485 486 /** 487 * Bulk retrieval of user data 488 * 489 * @author Dominik Eckelmann <dokuwiki@cosmocode.de> 490 * 491 * @param int $start index of first user to be returned 492 * @param int $limit max number of users to be returned 493 * @param array $filter array of field/pattern pairs, null for no filter 494 * @return array userinfo (refer getUserData for internal userinfo details) 495 */ 496 public function retrieveUsers($start = 0, $limit = 0, $filter = array()) 497 { 498 $adldap = $this->initAdLdap(null); 499 if (!$adldap) return array(); 500 501 //if (!$this->users) { 502 //get info for given user 503 $result = $adldap->user()->all(false, $this->constructSearchString($filter)); 504 if (!$result) return array(); 505 $this->users = array_fill_keys($result, false); 506 //} 507 508 $i = 0; 509 $count = 0; 510 $result = array(); 511 512 if (!isset($filter['grps'])) { 513 /** @var admin_plugin_usermanager $usermanager */ 514 $usermanager = plugin_load("admin", "usermanager", false); 515 $usermanager->setLastdisabled(false); 516 $this->constructPattern($filter); 517 foreach ($this->users as $user => &$info) { 518 if ($i++ < $start) { 519 continue; 520 } 521 if ($info === false) { 522 $info = $this->getUserData($user); 523 } 524 $result[$user] = $info; 525 if (($limit > 0) && (++$count >= $limit)) break; 526 } 527 } else { 528 /** @var admin_plugin_usermanager $usermanager */ 529 $usermanager = plugin_load("admin", "usermanager", false); 530 $usermanager->setLastdisabled(true); 531 if (!isset($this->grpsusers[$this->filterToString($filter)]) || 532 count($this->grpsusers[$this->filterToString($filter)]) < ($start+$limit) 533 ) { 534 if(!isset($this->grpsusers[$this->filterToString($filter)])) { 535 $this->grpsusers[$this->filterToString($filter)] = []; 536 } 537 538 $this->fillGroupUserArray( 539 $filter, 540 $start+$limit - count($this->grpsusers[$this->filterToString($filter)]) +1 541 ); 542 } 543 if (!$this->grpsusers[$this->filterToString($filter)]) return array(); 544 foreach ($this->grpsusers[$this->filterToString($filter)] as $user => &$info) { 545 if ($i++ < $start) { 546 continue; 547 } 548 $result[$user] = $info; 549 if (($limit > 0) && (++$count >= $limit)) break; 550 } 551 } 552 return $result; 553 } 554 555 /** 556 * Modify user data 557 * 558 * @param string $user nick of the user to be changed 559 * @param array $changes array of field/value pairs to be changed 560 * @return bool 561 */ 562 public function modifyUser($user, $changes) 563 { 564 $return = true; 565 $adldap = $this->initAdLdap($this->getUserDomain($user)); 566 if (!$adldap) { 567 msg($this->getLang('connectfail'), -1); 568 return false; 569 } 570 571 // password changing 572 if (isset($changes['pass'])) { 573 try { 574 $return = $adldap->user()->password($this->getUserName($user), $changes['pass']); 575 } catch (adLDAPException $e) { 576 if ($this->conf['debug']) msg('AD Auth: '.$e->getMessage(), -1); 577 $return = false; 578 } 579 if (!$return) msg($this->getLang('passchangefail'), -1); 580 } 581 582 // changing user data 583 $adchanges = array(); 584 if (isset($changes['name'])) { 585 // get first and last name 586 $parts = explode(' ', $changes['name']); 587 $adchanges['surname'] = array_pop($parts); 588 $adchanges['firstname'] = join(' ', $parts); 589 $adchanges['display_name'] = $changes['name']; 590 } 591 if (isset($changes['mail'])) { 592 $adchanges['email'] = $changes['mail']; 593 } 594 if (count($adchanges)) { 595 try { 596 $return = $return & $adldap->user()->modify($this->getUserName($user), $adchanges); 597 } catch (adLDAPException $e) { 598 if ($this->conf['debug']) msg('AD Auth: '.$e->getMessage(), -1); 599 $return = false; 600 } 601 if (!$return) msg($this->getLang('userchangefail'), -1); 602 } 603 604 return $return; 605 } 606 607 /** 608 * Initialize the AdLDAP library and connect to the server 609 * 610 * When you pass null as domain, it will reuse any existing domain. 611 * Eg. the one of the logged in user. It falls back to the default 612 * domain if no current one is available. 613 * 614 * @param string|null $domain The AD domain to use 615 * @return adLDAP|bool true if a connection was established 616 */ 617 protected function initAdLdap($domain) 618 { 619 if (is_null($domain) && is_array($this->opts)) { 620 $domain = $this->opts['domain']; 621 } 622 623 $this->opts = $this->loadServerConfig((string) $domain); 624 if (isset($this->adldap[$domain])) return $this->adldap[$domain]; 625 626 // connect 627 try { 628 $this->adldap[$domain] = new adLDAP($this->opts); 629 return $this->adldap[$domain]; 630 } catch (Exception $e) { 631 if ($this->conf['debug']) { 632 msg('AD Auth: '.$e->getMessage(), -1); 633 } 634 $this->success = false; 635 $this->adldap[$domain] = null; 636 } 637 return false; 638 } 639 640 /** 641 * Get the domain part from a user 642 * 643 * @param string $user 644 * @return string 645 */ 646 public function getUserDomain($user) 647 { 648 list(, $domain) = explode('@', $user, 2); 649 return $domain; 650 } 651 652 /** 653 * Get the user part from a user 654 * 655 * When an account suffix is set, we strip the domain part from the user 656 * 657 * @param string $user 658 * @return string 659 */ 660 public function getUserName($user) 661 { 662 if ($this->conf['account_suffix'] !== '') { 663 list($user) = explode('@', $user, 2); 664 } 665 return $user; 666 } 667 668 /** 669 * Fetch the configuration for the given AD domain 670 * 671 * @param string $domain current AD domain 672 * @return array 673 */ 674 protected function loadServerConfig($domain) 675 { 676 // prepare adLDAP standard configuration 677 $opts = $this->conf; 678 679 $opts['domain'] = $domain; 680 681 // add possible domain specific configuration 682 if ($domain && is_array($this->conf[$domain])) foreach ($this->conf[$domain] as $key => $val) { 683 $opts[$key] = $val; 684 } 685 686 // handle multiple AD servers 687 $opts['domain_controllers'] = explode(',', $opts['domain_controllers']); 688 $opts['domain_controllers'] = array_map('trim', $opts['domain_controllers']); 689 $opts['domain_controllers'] = array_filter($opts['domain_controllers']); 690 691 // compatibility with old option name 692 if (empty($opts['admin_username']) && !empty($opts['ad_username'])) { 693 $opts['admin_username'] = $opts['ad_username']; 694 } 695 if (empty($opts['admin_password']) && !empty($opts['ad_password'])) { 696 $opts['admin_password'] = $opts['ad_password']; 697 } 698 $opts['admin_password'] = conf_decodeString($opts['admin_password']); // deobfuscate 699 700 // we can change the password if SSL is set 701 if ($opts['use_ssl'] || $opts['use_tls']) { 702 $this->cando['modPass'] = true; 703 } else { 704 $this->cando['modPass'] = false; 705 } 706 707 // adLDAP expects empty user/pass as NULL, we're less strict FS#2781 708 if (empty($opts['admin_username'])) $opts['admin_username'] = null; 709 if (empty($opts['admin_password'])) $opts['admin_password'] = null; 710 711 // user listing needs admin priviledges 712 if (!empty($opts['admin_username']) && !empty($opts['admin_password'])) { 713 $this->cando['getUsers'] = true; 714 } else { 715 $this->cando['getUsers'] = false; 716 } 717 718 return $opts; 719 } 720 721 /** 722 * Returns a list of configured domains 723 * 724 * The default domain has an empty string as key 725 * 726 * @return array associative array(key => domain) 727 */ 728 public function getConfiguredDomains() 729 { 730 $domains = array(); 731 if (empty($this->conf['account_suffix'])) return $domains; // not configured yet 732 733 // add default domain, using the name from account suffix 734 $domains[''] = ltrim($this->conf['account_suffix'], '@'); 735 736 // find additional domains 737 foreach ($this->conf as $key => $val) { 738 if (is_array($val) && isset($val['account_suffix'])) { 739 $domains[$key] = ltrim($val['account_suffix'], '@'); 740 } 741 } 742 ksort($domains); 743 744 return $domains; 745 } 746 747 /** 748 * Check provided user and userinfo for matching patterns 749 * 750 * The patterns are set up with $this->_constructPattern() 751 * 752 * @author Chris Smith <chris@jalakai.co.uk> 753 * 754 * @param string $user 755 * @param array $info 756 * @return bool 757 */ 758 protected function filter($user, $info) 759 { 760 foreach ($this->pattern as $item => $pattern) { 761 if ($item == 'user') { 762 if (!preg_match($pattern, $user)) return false; 763 } elseif ($item == 'grps') { 764 if (!count(preg_grep($pattern, $info['grps']))) return false; 765 } else { 766 if (!preg_match($pattern, $info[$item])) return false; 767 } 768 } 769 return true; 770 } 771 772 /** 773 * Create a pattern for $this->_filter() 774 * 775 * @author Chris Smith <chris@jalakai.co.uk> 776 * 777 * @param array $filter 778 */ 779 protected function constructPattern($filter) 780 { 781 $this->pattern = array(); 782 foreach ($filter as $item => $pattern) { 783 $this->pattern[$item] = '/'.str_replace('/', '\/', $pattern).'/i'; // allow regex characters 784 } 785 } 786} 787