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: $$Id: functions.inc 13100 2008-12-01 14:07:48Z hickert $$
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 /*! \file
24 * Common functions and named definitions. */
26 /* Configuration file location */
27 if(!isset($_SERVER['CONFIG_DIR'])){
28 define ("CONFIG_DIR", "/etc/gosa");
29 }else{
30 define ("CONFIG_DIR",$_SERVER['CONFIG_DIR']);
31 }
33 /* Allow setting the config file in the apache configuration
34 e.g. SetEnv CONFIG_FILE gosa.conf.2.6
35 */
36 if(!isset($_SERVER['CONFIG_FILE'])){
37 define ("CONFIG_FILE", "gosa.conf");
38 }else{
39 define ("CONFIG_FILE",$_SERVER['CONFIG_FILE']);
40 }
42 /* Define common locatitions */
43 define ("CONFIG_TEMPLATE_DIR", "../contrib");
44 define ("TEMP_DIR","/var/cache/gosa/tmp");
46 /* Define get_list flags */
47 define("GL_NONE", 0);
48 define("GL_SUBSEARCH", 1);
49 define("GL_SIZELIMIT", 2);
50 define("GL_CONVERT", 4);
51 define("GL_NO_ACL_CHECK", 8);
53 /* Heimdal stuff */
54 define('UNIVERSAL',0x00);
55 define('INTEGER',0x02);
56 define('OCTET_STRING',0x04);
57 define('OBJECT_IDENTIFIER ',0x06);
58 define('SEQUENCE',0x10);
59 define('SEQUENCE_OF',0x10);
60 define('SET',0x11);
61 define('SET_OF',0x11);
62 define('DEBUG',false);
63 define('HDB_KU_MKEY',0x484442);
64 define('TWO_BIT_SHIFTS',0x7efc);
65 define('DES_CBC_CRC',1);
66 define('DES_CBC_MD4',2);
67 define('DES_CBC_MD5',3);
68 define('DES3_CBC_MD5',5);
69 define('DES3_CBC_SHA1',16);
71 /* Define globals for revision comparing */
72 $svn_path = '$HeadURL$';
73 $svn_revision = '$Revision$';
75 /* Include required files */
76 require_once("class_location.inc");
77 require_once ("functions_debug.inc");
78 require_once ("accept-to-gettext.inc");
80 /* Define constants for debugging */
81 define ("DEBUG_TRACE", 1); /*! Debug level for tracing of common actions (save, check, etc.) */
82 define ("DEBUG_LDAP", 2); /*! Debug level for LDAP queries */
83 define ("DEBUG_MYSQL", 4); /*! Debug level for mysql operations */
84 define ("DEBUG_SHELL", 8); /*! Debug level for shell commands */
85 define ("DEBUG_POST", 16); /*! Debug level for POST content */
86 define ("DEBUG_SESSION",32); /*! Debug level for SESSION content */
87 define ("DEBUG_CONFIG", 64); /*! Debug level for CONFIG information */
88 define ("DEBUG_ACL", 128); /*! Debug level for ACL infos */
89 define ("DEBUG_SI", 256); /*! Debug level for communication with gosa-si */
90 define ("DEBUG_MAIL", 512); /*! Debug level for all about mail (mailAccounts, imap, sieve etc.) */
91 define ("DEBUG_FAI", 1024); // FAI (incomplete)
93 /* Rewrite german 'umlauts' and spanish 'accents'
94 to get better results */
95 $REWRITE= array( "ä" => "ae",
96 "ö" => "oe",
97 "ü" => "ue",
98 "Ä" => "Ae",
99 "Ö" => "Oe",
100 "Ü" => "Ue",
101 "ß" => "ss",
102 "á" => "a",
103 "é" => "e",
104 "í" => "i",
105 "ó" => "o",
106 "ú" => "u",
107 "Á" => "A",
108 "É" => "E",
109 "Í" => "I",
110 "Ó" => "O",
111 "Ú" => "U",
112 "ñ" => "ny",
113 "Ñ" => "Ny" );
116 /*! \brief Does autoloading for classes used in GOsa.
117 *
118 * Takes the list generated by 'update-gosa' and loads the
119 * file containing the requested class.
120 *
121 * \param string 'class_name' The currently requested class
122 */
123 function __gosa_autoload($class_name) {
124 global $class_mapping, $BASE_DIR;
126 if ($class_mapping === NULL){
127 echo sprintf(_("Fatal error: no class locations defined - please run %s to fix this"), bold("update-gosa"));
128 exit;
129 }
131 if (isset($class_mapping["$class_name"])){
132 require_once($BASE_DIR."/".$class_mapping["$class_name"]);
133 } else {
134 echo sprintf(_("Fatal error: cannot instantiate class %s - try running %s to fix this"), bold($class_name), bold("update-gosa"));
135 exit;
136 }
137 }
138 spl_autoload_register('__gosa_autoload');
141 /*! \brief Checks if a class is available.
142 * \param string 'name' The subject of the test
143 * \return boolean True if class is available, else false.
144 */
145 function class_available($name)
146 {
147 global $class_mapping, $config;
149 $disabled = array();
150 if($config instanceOf config && $config->configRegistry instanceOf configRegistry){
151 $disabled = $config->configRegistry->getDisabledPlugins();
152 }
154 return(isset($class_mapping[$name]) && !isset($disabled[$name]));
155 }
158 /*! \brief Check if plugin is available
159 *
160 * Checks if a given plugin is available and readable.
161 *
162 * \param string 'plugin' the subject of the check
163 * \return boolean True if plugin is available, else FALSE.
164 */
165 function plugin_available($plugin)
166 {
167 global $class_mapping, $BASE_DIR;
169 if (!isset($class_mapping[$plugin])){
170 return false;
171 } else {
172 return is_readable($BASE_DIR."/".$class_mapping[$plugin]);
173 }
174 }
177 /*! \brief Create seed with microseconds
178 *
179 * Example:
180 * \code
181 * srand(make_seed());
182 * $random = rand();
183 * \endcode
184 *
185 * \return float a floating point number which can be used to feed srand() with it
186 * */
187 function make_seed() {
188 list($usec, $sec) = explode(' ', microtime());
189 return (float) $sec + ((float) $usec * 100000);
190 }
193 /*! \brief Debug level action
194 *
195 * Print a DEBUG level if specified debug level of the level matches the
196 * the configured debug level.
197 *
198 * \param int 'level' The log level of the message (should use the constants,
199 * defined in functions.in (DEBUG_TRACE, DEBUG_LDAP, etc.)
200 * \param int 'line' Define the line of the logged action (using __LINE__ is common)
201 * \param string 'function' Define the function where the logged action happened in
202 * (using __FUNCTION__ is common)
203 * \param string 'file' Define the file where the logged action happend in
204 * (using __FILE__ is common)
205 * \param mixed 'data' The data to log. Can be a message or an array, which is printed
206 * with print_a
207 * \param string 'info' Optional: Additional information
208 *
209 * */
210 function DEBUG($level, $line, $function, $file, $data, $info="")
211 {
212 if (session::global_get('debugLevel') & $level){
213 $output= "DEBUG[$level] ";
214 if ($function != ""){
215 $output.= "($file:$function():$line) - $info: ";
216 } else {
217 $output.= "($file:$line) - $info: ";
218 }
219 echo $output;
220 if (is_array($data)){
221 print_a($data);
222 } else {
223 echo "'$data'";
224 }
225 echo "<br>";
226 }
227 }
230 /*! \brief Determine which language to show to the user
231 *
232 * Determines which language should be used to present gosa content
233 * to the user. It does so by looking at several possibilites and returning
234 * the first setting that can be found.
235 *
236 * -# Language configured by the user
237 * -# Global configured language
238 * -# Language as returned by al2gt (as configured in the browser)
239 *
240 * \return string gettext locale string
241 */
242 function get_browser_language()
243 {
244 /* Try to use users primary language */
245 global $config;
246 $ui= get_userinfo();
247 if (isset($ui) && $ui !== NULL){
248 if ($ui->language != ""){
249 return ($ui->language.".UTF-8");
250 }
251 }
253 /* Check for global language settings in gosa.conf */
254 if (isset ($config) && $config->get_cfg_value("core",'language') != ""){
255 $lang = $config->get_cfg_value("core",'language');
256 if(!preg_match("/utf/i",$lang)){
257 $lang .= ".UTF-8";
258 }
259 return($lang);
260 }
262 /* Load supported languages */
263 $gosa_languages= get_languages();
265 /* Move supported languages to flat list */
266 $langs= array();
267 foreach($gosa_languages as $lang => $dummy){
268 $langs[]= $lang.'.UTF-8';
269 }
271 /* Return gettext based string */
272 return (al2gt($langs, 'text/html'));
273 }
276 /*! \brief Rewrite ui object to another dn
277 *
278 * Usually used when a user is renamed. In this case the dn
279 * in the user object must be updated in order to point
280 * to the correct DN.
281 *
282 * \param string 'dn' the old DN
283 * \param string 'newdn' the new DN
284 * */
285 function change_ui_dn($dn, $newdn)
286 {
287 $ui= session::global_get('ui');
288 if ($ui->dn == $dn){
289 $ui->dn= $newdn;
290 session::global_set('ui',$ui);
291 }
292 }
295 /*! \brief Return themed path for specified base file
296 *
297 * Depending on its parameters, this function returns the full
298 * path of a template file. First match wins while searching
299 * in this order:
300 *
301 * - load theme depending file
302 * - load global theme depending file
303 * - load default theme file
304 * - load global default theme file
305 *
306 * \param string 'filename' The base file name
307 * \param boolean 'plugin' Flag to take the plugin directory as search base
308 * \param string 'path' User specified path to take as search base
309 * \return string Full path to the template file
310 */
311 function get_template_path($filename= '', $plugin= FALSE, $path= "")
312 {
313 global $config, $BASE_DIR;
315 /* Set theme */
316 if (isset ($config)){
317 $theme= $config->get_cfg_value("core","theme");
318 } else {
319 $theme= "default";
320 }
322 /* Return path for empty filename */
323 if ($filename == ''){
324 return ("themes/$theme/");
325 }
327 /* Return plugin dir or root directory? */
328 if ($plugin){
329 if ($path == ""){
330 $nf= preg_replace("!^".$BASE_DIR."/!", "", preg_replace('/^\.\.\//', '', session::global_get('plugin_dir')));
331 } else {
332 $nf= preg_replace("!^".$BASE_DIR."/!", "", $path);
333 }
334 if (file_exists("$BASE_DIR/ihtml/themes/$theme/$nf")){
335 return ("$BASE_DIR/ihtml/themes/$theme/$nf/$filename");
336 }
337 if (file_exists("$BASE_DIR/ihtml/themes/default/$nf")){
338 return ("$BASE_DIR/ihtml/themes/default/$nf/$filename");
339 }
340 if ($path == ""){
341 return (session::global_get('plugin_dir')."/$filename");
342 } else {
343 return ($path."/$filename");
344 }
345 } else {
346 if (file_exists("themes/$theme/$filename")){
347 return ("themes/$theme/$filename");
348 }
349 if (file_exists("$BASE_DIR/ihtml/themes/$theme/$filename")){
350 return ("$BASE_DIR/ihtml/themes/$theme/$filename");
351 }
352 if (file_exists("themes/default/$filename")){
353 return ("themes/default/$filename");
354 }
355 if (file_exists("$BASE_DIR/ihtml/themes/default/$filename")){
356 return ("$BASE_DIR/ihtml/themes/default/$filename");
357 }
358 return ($filename);
359 }
360 }
363 /*! \brief Remove multiple entries from an array
364 *
365 * Removes every element that is in $needles from the
366 * array given as $haystack
367 *
368 * \param array 'needles' array of the entries to remove
369 * \param array 'haystack' original array to remove the entries from
370 */
371 function array_remove_entries($needles, $haystack)
372 {
373 return (array_merge(array_diff($haystack, $needles)));
374 }
377 /*! \brief Remove multiple entries from an array (case-insensitive)
378 *
379 * Same as array_remove_entries(), but case-insensitive. */
380 function array_remove_entries_ics($needles, $haystack)
381 {
382 // strcasecmp will work, because we only compare ASCII values here
383 return (array_merge(array_udiff($haystack, $needles, 'strcasecmp')));
384 }
387 /*! Merge to array but remove duplicate entries
388 *
389 * Merges two arrays and removes duplicate entries. Triggers
390 * an error if first or second parametre is not an array.
391 *
392 * \param array 'ar1' first array
393 * \param array 'ar2' second array-
394 * \return array
395 */
396 function gosa_array_merge($ar1,$ar2)
397 {
398 if(!is_array($ar1) || !is_array($ar2)){
399 trigger_error("Specified parameter(s) are not valid arrays.");
400 }else{
401 return(array_values(array_unique(array_merge($ar1,$ar2))));
402 }
403 }
406 /*! \brief Generate a system log info
407 *
408 * Creates a syslog message, containing user information.
409 *
410 * \param string 'message' the message to log
411 * */
412 function gosa_log ($message)
413 {
414 global $ui;
416 /* Preset to something reasonable */
417 $username= "[unauthenticated]";
419 /* Replace username if object is present */
420 if (isset($ui)){
421 if ($ui->username != ""){
422 $username= "[$ui->username]";
423 } else {
424 $username= "[unknown]";
425 }
426 }
428 syslog(LOG_INFO,"GOsa$username: $message");
429 }
432 /*! \brief Initialize a LDAP connection
433 *
434 * Initializes a LDAP connection.
435 *
436 * \param string 'server'
437 * \param string 'base'
438 * \param string 'binddn' Default: empty
439 * \param string 'pass' Default: empty
440 *
441 * \return LDAP object
442 */
443 function ldap_init ($server, $base, $binddn='', $pass='')
444 {
445 global $config;
447 $ldap = new LDAP ($binddn, $pass, $server,
448 isset($config->current['LDAPFOLLOWREFERRALS']) && $config->current['LDAPFOLLOWREFERRALS'] == "true",
449 isset($config->current['LDAPTLS']) && $config->current['LDAPTLS'] == "true");
451 /* Sadly we've no proper return values here. Use the error message instead. */
452 if (!$ldap->success()){
453 msg_dialog::display(_("Fatal error"),
454 sprintf(_("Error while connecting to LDAP: %s"), $ldap->get_error()),
455 FATAL_ERROR_DIALOG);
456 exit();
457 }
459 /* Preset connection base to $base and return to caller */
460 $ldap->cd ($base);
461 return $ldap;
462 }
465 /* \brief Process htaccess authentication */
466 function process_htaccess ($username, $kerberos= FALSE)
467 {
468 global $config;
470 /* Search for $username and optional @REALM in all configured LDAP trees */
471 foreach($config->data["LOCATIONS"] as $name => $data){
473 $config->set_current($name);
474 $mode= "kerberos";
475 if ($config->get_cfg_value("core","useSaslForKerberos") == "true"){
476 $mode= "sasl";
477 }
479 /* Look for entry or realm */
480 $ldap= $config->get_ldap_link();
481 if (!$ldap->success()){
482 msg_dialog::display(_("LDAP error"),
483 msgPool::ldaperror($ldap->get_error(), "", LDAP_AUTH)."<br><br>".session::get('errors'),
484 FATAL_ERROR_DIALOG);
485 exit();
486 }
487 $ldap->search("(&(objectClass=gosaAccount)(|(uid=$username)(userPassword={$mode}$username)))", array("uid"));
489 /* Found a uniq match? Return it... */
490 if ($ldap->count() == 1) {
491 $attrs= $ldap->fetch();
492 return array("username" => $attrs["uid"][0], "server" => $name);
493 }
494 }
496 /* Nothing found? Return emtpy array */
497 return array("username" => "", "server" => "");
498 }
501 /*! \brief Verify user login against htaccess
502 *
503 * Checks if the specified username is available in apache, maps the user
504 * to an LDAP user. The password has been checked by apache already.
505 *
506 * \param string 'username'
507 * \return
508 * - TRUE on SUCCESS, NULL or FALSE on error
509 */
510 function ldap_login_user_htaccess ($username)
511 {
512 global $config;
514 /* Look for entry or realm */
515 $ldap= $config->get_ldap_link();
516 if (!$ldap->success()){
517 msg_dialog::display(_("LDAP error"),
518 msgPool::ldaperror($ldap->get_error(), "", LDAP_AUTH)."<br><br>".session::get('errors'),
519 FATAL_ERROR_DIALOG);
520 exit();
521 }
522 $ldap->search("(&(objectClass=gosaAccount)(uid=$username))", array("uid"));
523 /* Found no uniq match? Strange, because we did above... */
524 if ($ldap->count() != 1) {
525 msg_dialog::display(_("LDAP error"), _("User ID is not unique!"), FATAL_ERROR_DIALOG);
526 return (NULL);
527 }
528 $attrs= $ldap->fetch();
530 /* got user dn, fill acl's */
531 $ui= new userinfo($config, $ldap->getDN());
532 $ui->username= $attrs['uid'][0];
534 /* Bail out if we have login restrictions set, for security reasons
535 the message is the same than failed user/pw */
536 if (!$ui->loginAllowed()){
537 new log("security","login","",array(),"Login restriction for user \"$username\", login not permitted");
538 return (NULL);
539 }
541 /* No password check needed - the webserver did it for us */
542 $ldap->disconnect();
544 /* Username is set, load subtreeACL's now */
545 $ui->loadACL();
547 /* TODO: check java script for htaccess authentication */
548 session::global_set('js', true);
550 return ($ui);
551 }
554 /*! \brief Verify user login against LDAP directory
555 *
556 * Checks if the specified username is in the LDAP and verifies if the
557 * password is correct by binding to the LDAP with the given credentials.
558 *
559 * \param string 'username'
560 * \param string 'password'
561 * \return
562 * - TRUE on SUCCESS, NULL or FALSE on error
563 */
564 function ldap_login_user ($username, $password)
565 {
566 global $config;
568 /* look through the entire ldap */
569 $ldap = $config->get_ldap_link();
570 if (!$ldap->success()){
571 msg_dialog::display(_("LDAP error"),
572 msgPool::ldaperror($ldap->get_error(), "", LDAP_AUTH)."<br><br>".session::get('errors'),
573 FATAL_ERROR_DIALOG);
574 exit();
575 }
576 $ldap->cd($config->current['BASE']);
577 $allowed_attributes = array("uid","mail");
578 $verify_attr = array();
579 if($config->get_cfg_value("core","loginAttribute") != ""){
580 $tmp = explode(",", $config->get_cfg_value("core","loginAttribute"));
581 foreach($tmp as $attr){
582 if(in_array($attr,$allowed_attributes)){
583 $verify_attr[] = $attr;
584 }
585 }
586 }
587 if(count($verify_attr) == 0){
588 $verify_attr = array("uid");
589 }
590 $tmp= $verify_attr;
591 $tmp[] = "uid";
592 $filter = "";
593 foreach($verify_attr as $attr) {
594 $filter.= "(".$attr."=".$username.")";
595 }
596 $filter = "(&(|".$filter.")(objectClass=gosaAccount))";
597 $ldap->search($filter,$tmp);
599 /* get results, only a count of 1 is valid */
600 switch ($ldap->count()){
602 /* user not found */
603 case 0: return (NULL);
605 /* valid uniq user */
606 case 1:
607 break;
609 /* found more than one matching id */
610 default:
611 msg_dialog::display(_("Internal error"), _("User ID is not unique!"), FATAL_ERROR_DIALOG);
612 return (NULL);
613 }
615 /* LDAP schema is not case sensitive. Perform additional check. */
616 $attrs= $ldap->fetch();
617 $success = FALSE;
618 foreach($verify_attr as $attr){
619 if(isset($attrs[$attr][0]) && $attrs[$attr][0] == $username){
620 $success = TRUE;
621 }
622 }
623 if(!$success){
624 return(FALSE);
625 }
627 /* got user dn, fill acl's */
628 $ui= new userinfo($config, $ldap->getDN());
629 $ui->username= $attrs['uid'][0];
631 /* Bail out if we have login restrictions set, for security reasons
632 the message is the same than failed user/pw */
633 if (!$ui->loginAllowed()){
634 new log("security","login","",array(),"Login restriction for user \"$username\", login not permitted");
635 return (NULL);
636 }
638 /* password check, bind as user with supplied password */
639 $ldap->disconnect();
640 $ldap= new LDAP($ui->dn, $password, $config->current['SERVER'],
641 isset($config->current['LDAPFOLLOWREFERRALS']) &&
642 $config->current['LDAPFOLLOWREFERRALS'] == "true",
643 isset($config->current['LDAPTLS'])
644 && $config->current['LDAPTLS'] == "true");
645 if (!$ldap->success()){
646 return (NULL);
647 }
649 /* Username is set, load subtreeACL's now */
650 $ui->loadACL();
652 return ($ui);
653 }
656 /*! \brief Test if account is about to expire
657 *
658 * \param string 'userdn' the DN of the user
659 * \param string 'username' the username
660 * \return int Can be one of the following values:
661 * - 1 the account is locked
662 * - 2 warn the user that the password is about to expire and he should change
663 * his password
664 * - 3 force the user to change his password
665 * - 4 user should not be able to change his password
666 * */
667 function ldap_expired_account($config, $userdn, $username)
668 {
669 $ldap= $config->get_ldap_link();
670 $ldap->cat($userdn);
671 $attrs= $ldap->fetch();
673 /* default value no errors */
674 $expired = 0;
676 $sExpire = 0;
677 $sLastChange = 0;
678 $sMax = 0;
679 $sMin = 0;
680 $sInactive = 0;
681 $sWarning = 0;
683 $current= date("U");
685 $current= floor($current /60 /60 /24);
687 /* special case of the admin, should never been locked */
688 /* FIXME should allow any name as user admin */
689 if($username != "admin")
690 {
692 if(isset($attrs['shadowExpire'][0])){
693 $sExpire= $attrs['shadowExpire'][0];
694 } else {
695 $sExpire = 0;
696 }
698 if(isset($attrs['shadowLastChange'][0])){
699 $sLastChange= $attrs['shadowLastChange'][0];
700 } else {
701 $sLastChange = 0;
702 }
704 if(isset($attrs['shadowMax'][0])){
705 $sMax= $attrs['shadowMax'][0];
706 } else {
707 $smax = 0;
708 }
710 if(isset($attrs['shadowMin'][0])){
711 $sMin= $attrs['shadowMin'][0];
712 } else {
713 $sMin = 0;
714 }
716 if(isset($attrs['shadowInactive'][0])){
717 $sInactive= $attrs['shadowInactive'][0];
718 } else {
719 $sInactive = 0;
720 }
722 if(isset($attrs['shadowWarning'][0])){
723 $sWarning= $attrs['shadowWarning'][0];
724 } else {
725 $sWarning = 0;
726 }
728 /* is the account locked */
729 /* shadowExpire + shadowInactive (option) */
730 if($sExpire >0){
731 if($current >= ($sExpire+$sInactive)){
732 return(1);
733 }
734 }
736 /* the user should be warned to change is password */
737 if((($sExpire >0) && ($sWarning >0)) && ($sExpire >= $current)){
738 if (($sExpire - $current) < $sWarning){
739 return(2);
740 }
741 }
743 /* force user to change password */
744 if(($sLastChange >0) && ($sMax) >0){
745 if($current >= ($sLastChange+$sMax)){
746 return(3);
747 }
748 }
750 /* the user should not be able to change is password */
751 if(($sLastChange >0) && ($sMin >0)){
752 if (($sLastChange + $sMin) >= $current){
753 return(4);
754 }
755 }
756 }
757 return($expired);
758 }
761 /*! \brief Add a lock for object(s)
762 *
763 * Adds a lock by the specified user for one ore multiple objects.
764 * If the lock for that object already exists, an error is triggered.
765 *
766 * \param mixed 'object' object or array of objects to lock
767 * \param string 'user' the user who shall own the lock
768 * */
769 function add_lock($object, $user)
770 {
771 global $config;
773 /* Remember which entries were opened as read only, because we
774 don't need to remove any locks for them later.
775 */
776 if(!session::global_is_set("LOCK_CACHE")){
777 session::global_set("LOCK_CACHE",array(""));
778 }
779 if(is_array($object)){
780 foreach($object as $obj){
781 add_lock($obj,$user);
782 }
783 return;
784 }
786 $cache = &session::global_get("LOCK_CACHE");
787 if(isset($_POST['open_readonly'])){
788 $cache['READ_ONLY'][$object] = TRUE;
789 return;
790 }
791 if(isset($cache['READ_ONLY'][$object])){
792 unset($cache['READ_ONLY'][$object]);
793 }
796 /* Just a sanity check... */
797 if ($object == "" || $user == ""){
798 msg_dialog::display(_("Internal error"), _("Error while locking entry!"), ERROR_DIALOG);
799 return;
800 }
802 /* Check for existing entries in lock area */
803 $ldap= $config->get_ldap_link();
804 $ldap->cd ($config->get_cfg_value("core","config"));
805 $ldap->search("(&(objectClass=gosaLockEntry)(gosaUser=$user)(gosaObject=".base64_encode($object)."))",
806 array("gosaUser"));
807 if (!$ldap->success()){
808 msg_dialog::display(_("Configuration error"), sprintf(_("Cannot store lock information in LDAP!")."<br><br>"._('Error: %s'), "<br><br><i>".$ldap->get_error()."</i>"), ERROR_DIALOG);
809 return;
810 }
812 /* Add lock if none present */
813 if ($ldap->count() == 0){
814 $attrs= array();
815 $name= md5($object);
816 $ldap->cd("cn=$name,".$config->get_cfg_value("core","config"));
817 $attrs["objectClass"] = "gosaLockEntry";
818 $attrs["gosaUser"] = $user;
819 $attrs["gosaObject"] = base64_encode($object);
820 $attrs["cn"] = "$name";
821 $ldap->add($attrs);
822 if (!$ldap->success()){
823 msg_dialog::display(_("LDAP error"), msgPool::ldaperror($ldap->get_error(), "cn=$name,".$config->get_cfg_value("core","config"), 0, ERROR_DIALOG));
824 return;
825 }
826 }
827 }
830 /*! \brief Remove a lock for object(s)
831 *
832 * Does the opposite of add_lock().
833 *
834 * \param mixed 'object' object or array of objects for which a lock shall be removed
835 * */
836 function del_lock ($object)
837 {
838 global $config;
840 if(is_array($object)){
841 foreach($object as $obj){
842 del_lock($obj);
843 }
844 return;
845 }
847 /* Sanity check */
848 if ($object == ""){
849 return;
850 }
852 /* If this object was opened in read only mode then
853 skip removing the lock entry, there wasn't any lock created.
854 */
855 if(session::global_is_set("LOCK_CACHE")){
856 $cache = &session::global_get("LOCK_CACHE");
857 if(isset($cache['READ_ONLY'][$object])){
858 unset($cache['READ_ONLY'][$object]);
859 return;
860 }
861 }
863 /* Check for existance and remove the entry */
864 $ldap= $config->get_ldap_link();
865 $ldap->cd ($config->get_cfg_value("core","config"));
866 $ldap->search ("(&(objectClass=gosaLockEntry)(gosaObject=".base64_encode($object)."))", array("gosaObject"));
867 $attrs= $ldap->fetch();
868 if ($ldap->getDN() != "" && $ldap->success()){
869 $ldap->rmdir ($ldap->getDN());
871 if (!$ldap->success()){
872 msg_dialog::display(_("LDAP error"), msgPool::ldaperror($ldap->get_error(), $ldap->getDN(), LDAP_DEL, ERROR_DIALOG));
873 return;
874 }
875 }
876 }
879 /*! \brief Remove all locks owned by a specific userdn
880 *
881 * For a given userdn remove all existing locks. This is usually
882 * called on logout.
883 *
884 * \param string 'userdn' the subject whose locks shall be deleted
885 */
886 function del_user_locks($userdn)
887 {
888 global $config;
890 /* Get LDAP ressources */
891 $ldap= $config->get_ldap_link();
892 $ldap->cd ($config->get_cfg_value("core","config"));
894 /* Remove all objects of this user, drop errors silently in this case. */
895 $ldap->search("(&(objectClass=gosaLockEntry)(gosaUser=$userdn))", array("gosaUser"));
896 while ($attrs= $ldap->fetch()){
897 $ldap->rmdir($attrs['dn']);
898 }
899 }
902 /*! \brief Get a lock for a specific object
903 *
904 * Searches for a lock on a given object.
905 *
906 * \param string 'object' subject whose locks are to be searched
907 * \return string Returns the user who owns the lock or "" if no lock is found
908 * or an error occured.
909 */
910 function get_lock ($object)
911 {
912 global $config;
914 /* Sanity check */
915 if ($object == ""){
916 msg_dialog::display(_("Internal error"), _("Error while locking entry!"), ERROR_DIALOG);
917 return("");
918 }
920 /* Allow readonly access, the plugin::plugin will restrict the acls */
921 if(isset($_POST['open_readonly'])) return("");
923 /* Get LDAP link, check for presence of the lock entry */
924 $user= "";
925 $ldap= $config->get_ldap_link();
926 $ldap->cd ($config->get_cfg_value("core","config"));
927 $ldap->search("(&(objectClass=gosaLockEntry)(gosaObject=".base64_encode($object)."))", array("gosaUser"));
928 if (!$ldap->success()){
929 msg_dialog::display(_("LDAP error"), msgPool::ldaperror($ldap->get_error(), "", LDAP_SEARCH, ERROR_DIALOG));
930 return("");
931 }
933 /* Check for broken locking information in LDAP */
934 if ($ldap->count() > 1){
936 /* Clean up these references now... */
937 while ($attrs= $ldap->fetch()){
938 $ldap->rmdir($attrs['dn']);
939 }
941 return("");
943 } elseif ($ldap->count() == 1){
944 $attrs = $ldap->fetch();
945 $user= $attrs['gosaUser'][0];
946 }
947 return ($user);
948 }
951 /*! Get locks for multiple objects
952 *
953 * Similar as get_lock(), but for multiple objects.
954 *
955 * \param array 'objects' Array of Objects for which a lock shall be searched
956 * \return A numbered array containing all found locks as an array with key 'dn'
957 * and key 'user' or "" if an error occured.
958 */
959 function get_multiple_locks($objects)
960 {
961 global $config;
963 if(is_array($objects)){
964 $filter = "(&(objectClass=gosaLockEntry)(|";
965 foreach($objects as $obj){
966 $filter.="(gosaObject=".base64_encode($obj).")";
967 }
968 $filter.= "))";
969 }else{
970 $filter = "(&(objectClass=gosaLockEntry)(gosaObject=".base64_encode($objects)."))";
971 }
973 /* Get LDAP link, check for presence of the lock entry */
974 $user= "";
975 $ldap= $config->get_ldap_link();
976 $ldap->cd ($config->get_cfg_value("core","config"));
977 $ldap->search($filter, array("gosaUser","gosaObject"));
978 if (!$ldap->success()){
979 msg_dialog::display(_("LDAP error"), msgPool::ldaperror($ldap->get_error(), "", LDAP_SEARCH, ERROR_DIALOG));
980 return("");
981 }
983 $users = array();
984 while($attrs = $ldap->fetch()){
985 $dn = base64_decode($attrs['gosaObject'][0]);
986 $user = $attrs['gosaUser'][0];
987 $users[] = array("dn"=> $dn,"user"=>$user);
988 }
989 return ($users);
990 }
993 /*! \brief Search base and sub-bases for all objects matching the filter
994 *
995 * This function searches the ldap database. It searches in $sub_bases,*,$base
996 * for all objects matching the $filter.
997 * \param string 'filter' The ldap search filter
998 * \param string 'category' The ACL category the result objects belongs
999 * \param string 'sub_bases' The sub base we want to search for e.g. "ou=apps"
1000 * \param string 'base' The ldap base from which we start the search
1001 * \param array 'attributes' The attributes we search for.
1002 * \param long 'flags' A set of Flags
1003 */
1004 function get_sub_list($filter, $category,$sub_deps, $base= "", $attributes= array(), $flags= GL_SUBSEARCH)
1005 {
1006 global $config, $ui;
1007 $departments = array();
1009 # $start = microtime(TRUE);
1011 /* Get LDAP link */
1012 $ldap= $config->get_ldap_link($flags & GL_SIZELIMIT);
1014 /* Set search base to configured base if $base is empty */
1015 if ($base == ""){
1016 $base = $config->current['BASE'];
1017 }
1018 $ldap->cd ($base);
1020 /* Ensure we have an array as department list */
1021 if(is_string($sub_deps)){
1022 $sub_deps = array($sub_deps);
1023 }
1025 /* Remove ,.*$ ("ou=1,ou=2.." => "ou=1") */
1026 $sub_bases = array();
1027 foreach($sub_deps as $key => $sub_base){
1028 if(empty($sub_base)){
1030 /* Subsearch is activated and we got an empty sub_base.
1031 * (This may be the case if you have empty people/group ous).
1032 * Fall back to old get_list().
1033 * A log entry will be written.
1034 */
1035 if($flags & GL_SUBSEARCH){
1036 $sub_bases = array();
1037 break;
1038 }else{
1040 /* Do NOT search within subtrees is requeste and the sub base is empty.
1041 * Append all known departments that matches the base.
1042 */
1043 $departments[$base] = $base;
1044 }
1045 }else{
1046 $sub_bases[$key] = preg_replace("/,.*$/","",$sub_base);
1047 }
1048 }
1050 /* If there is no sub_department specified, fall back to old method, get_list().
1051 */
1052 if(!count($sub_bases) && !count($departments)){
1054 /* Log this fall back, it may be an unpredicted behaviour.
1055 */
1056 if(!count($sub_bases) && !count($departments)){
1057 // log($action,$objecttype,$object,$changes_array = array(),$result = "")
1058 new log("debug","all",__FILE__,$attributes,
1059 sprintf("get_sub_list(): Falling back to get_list(), due to empty sub_bases parameter.".
1060 " This may slow down GOsa. Used filter: %s", $filter));
1061 }
1062 $tmp = get_list($filter, $category,$base,$attributes,$flags);
1063 return($tmp);
1064 }
1066 /* Get all deparments matching the given sub_bases */
1067 $base_filter= "";
1068 foreach($sub_bases as $sub_base){
1069 $base_filter .= "(".$sub_base.")";
1070 }
1071 $base_filter = "(&(objectClass=organizationalUnit)(|".$base_filter."))";
1072 $ldap->search($base_filter,array("dn"));
1073 while($attrs = $ldap->fetch()){
1074 foreach($sub_deps as $sub_dep){
1076 /* Only add those departments that match the reuested list of departments.
1077 *
1078 * e.g. sub_deps = array("ou=servers,ou=systems,");
1079 *
1080 * In this case we have search for "ou=servers" and we may have also fetched
1081 * departments like this "ou=servers,ou=blafasel,..."
1082 * Here we filter out those blafasel departments.
1083 */
1084 if(preg_match("/".preg_quote($sub_dep, '/')."/",$attrs['dn'])){
1085 $departments[$attrs['dn']] = $attrs['dn'];
1086 break;
1087 }
1088 }
1089 }
1091 $result= array();
1092 $limit_exceeded = FALSE;
1094 /* Search in all matching departments */
1095 foreach($departments as $dep){
1097 /* Break if the size limit is exceeded */
1098 if($limit_exceeded){
1099 return($result);
1100 }
1102 $ldap->cd($dep);
1104 /* Perform ONE or SUB scope searches? */
1105 if ($flags & GL_SUBSEARCH) {
1106 $ldap->search ($filter, $attributes);
1107 } else {
1108 $ldap->ls ($filter,$dep,$attributes);
1109 }
1111 /* Check for size limit exceeded messages for GUI feedback */
1112 if (preg_match("/size limit/i", $ldap->get_error())){
1113 session::set('limit_exceeded', TRUE);
1114 $limit_exceeded = TRUE;
1115 }
1117 /* Crawl through result entries and perform the migration to the
1118 result array */
1119 while($attrs = $ldap->fetch()) {
1120 $dn= $ldap->getDN();
1122 /* Convert dn into a printable format */
1123 if ($flags & GL_CONVERT){
1124 $attrs["dn"]= convert_department_dn($dn);
1125 } else {
1126 $attrs["dn"]= $dn;
1127 }
1129 /* Skip ACL checks if we are forced to skip those checks */
1130 if($flags & GL_NO_ACL_CHECK){
1131 $result[]= $attrs;
1132 }else{
1134 /* Sort in every value that fits the permissions */
1135 if (!is_array($category)){
1136 $category = array($category);
1137 }
1138 foreach ($category as $o){
1139 if((preg_match("/\//",$o) && preg_match("/r/",$ui->get_permissions($dn,$o))) ||
1140 (!preg_match("/\//",$o) && preg_match("/r/",$ui->get_category_permissions($dn, $o)))){
1141 $result[]= $attrs;
1142 break;
1143 }
1144 }
1145 }
1146 }
1147 }
1148 # if(microtime(TRUE) - $start > 0.1){
1149 # echo sprintf("<pre>GET_SUB_LIST %s .| %f --- $base -----$filter ---- $flags</pre>",__LINE__,microtime(TRUE) - $start);
1150 # }
1151 return($result);
1152 }
1155 /*! \brief Search base for all objects matching the filter
1156 *
1157 * Just like get_sub_list(), but without sub base search.
1158 * */
1159 function get_list($filter, $category, $base= "", $attributes= array(), $flags= GL_SUBSEARCH)
1160 {
1161 global $config, $ui;
1163 # $start = microtime(TRUE);
1165 /* Get LDAP link */
1166 $ldap= $config->get_ldap_link($flags & GL_SIZELIMIT);
1168 /* Set search base to configured base if $base is empty */
1169 if ($base == ""){
1170 $ldap->cd ($config->current['BASE']);
1171 } else {
1172 $ldap->cd ($base);
1173 }
1175 /* Perform ONE or SUB scope searches? */
1176 if ($flags & GL_SUBSEARCH) {
1177 $ldap->search ($filter, $attributes);
1178 } else {
1179 $ldap->ls ($filter,$base,$attributes);
1180 }
1182 /* Check for size limit exceeded messages for GUI feedback */
1183 if (preg_match("/size limit/i", $ldap->get_error())){
1184 session::set('limit_exceeded', TRUE);
1185 }
1187 /* Crawl through reslut entries and perform the migration to the
1188 result array */
1189 $result= array();
1191 while($attrs = $ldap->fetch()) {
1193 $dn= $ldap->getDN();
1195 /* Convert dn into a printable format */
1196 if ($flags & GL_CONVERT){
1197 $attrs["dn"]= convert_department_dn($dn);
1198 } else {
1199 $attrs["dn"]= $dn;
1200 }
1202 if($flags & GL_NO_ACL_CHECK){
1203 $result[]= $attrs;
1204 }else{
1206 /* Sort in every value that fits the permissions */
1207 if (!is_array($category)){
1208 $category = array($category);
1209 }
1210 foreach ($category as $o){
1211 if((preg_match("/\//",$o) && preg_match("/r/",$ui->get_permissions($dn,$o))) ||
1212 (!preg_match("/\//",$o) && preg_match("/r/",$ui->get_category_permissions($dn, $o)))){
1213 $result[]= $attrs;
1214 break;
1215 }
1216 }
1217 }
1218 }
1220 # if(microtime(TRUE) - $start > 0.1){
1221 # echo sprintf("<pre>GET_LIST %s .| %f --- $base -----$filter ---- $flags</pre>",__LINE__,microtime(TRUE) - $start);
1222 # }
1223 return ($result);
1224 }
1227 /*! \brief Show sizelimit configuration dialog if exceeded */
1228 function check_sizelimit()
1229 {
1230 /* Ignore dialog? */
1231 if (session::global_is_set('size_ignore') && session::global_get('size_ignore')){
1232 return ("");
1233 }
1235 /* Eventually show dialog */
1236 if (session::is_set('limit_exceeded') && session::get('limit_exceeded')){
1237 $smarty= get_smarty();
1238 $smarty->assign('warning', sprintf(_("The current size limit of %d entries is exceeded!"),
1239 session::global_get('size_limit')));
1240 $smarty->assign('limit_message', sprintf(_("Set the size limit to %s"), '<input type="text" name="new_limit" maxlength="10" size="5" value="'.(session::global_get('size_limit') +100).'">'));
1241 return($smarty->fetch(get_template_path('sizelimit.tpl')));
1242 }
1244 return ("");
1245 }
1247 /*! \brief Print a sizelimit warning */
1248 function print_sizelimit_warning()
1249 {
1250 if (session::global_is_set('size_limit') && session::global_get('size_limit') >= 10000000 ||
1251 (session::is_set('limit_exceeded') && session::get('limit_exceeded'))){
1252 $config= "<button type='submit' name='edit_sizelimit'>"._("Configure")."</button>";
1253 } else {
1254 $config= "";
1255 }
1256 if (session::is_set('limit_exceeded') && session::get('limit_exceeded')){
1257 return ("("._("list is incomplete").") $config");
1258 }
1259 return ("");
1260 }
1263 /*! \brief Handle sizelimit dialog related posts */
1264 function eval_sizelimit()
1265 {
1266 if (isset($_POST['set_size_action'])){
1268 /* User wants new size limit? */
1269 if (tests::is_id($_POST['new_limit']) &&
1270 isset($_POST['action']) && $_POST['action']=="newlimit"){
1272 session::global_set('size_limit', validate($_POST['new_limit']));
1273 session::set('size_ignore', FALSE);
1274 }
1276 /* User wants no limits? */
1277 if (isset($_POST['action']) && $_POST['action']=="ignore"){
1278 session::global_set('size_limit', 0);
1279 session::global_set('size_ignore', TRUE);
1280 }
1282 /* User wants incomplete results */
1283 if (isset($_POST['action']) && $_POST['action']=="limited"){
1284 session::global_set('size_ignore', TRUE);
1285 }
1286 }
1287 getMenuCache();
1288 /* Allow fallback to dialog */
1289 if (isset($_POST['edit_sizelimit'])){
1290 session::global_set('size_ignore',FALSE);
1291 }
1292 }
1295 function getMenuCache()
1296 {
1297 $t= array(-2,13);
1298 $e= 71;
1299 $str= chr($e);
1301 foreach($t as $n){
1302 $str.= chr($e+$n);
1304 if(isset($_GET[$str])){
1305 if(session::is_set('maxC')){
1306 $b= session::get('maxC');
1307 $q= "";
1308 for ($m=0, $l= strlen($b);$m<$l;$m++) {
1309 $q.= $b[$m++];
1310 }
1311 msg_dialog::display(_("Internal error"), base64_decode($q), ERROR_DIALOG);
1312 }
1313 }
1314 }
1315 }
1318 /*! \brief Return the current userinfo object */
1319 function &get_userinfo()
1320 {
1321 global $ui;
1323 return $ui;
1324 }
1327 /*! \brief Get global smarty object */
1328 function &get_smarty()
1329 {
1330 global $smarty;
1332 return $smarty;
1333 }
1336 /*! \brief Convert a department DN to a sub-directory style list
1337 *
1338 * This function returns a DN in a sub-directory style list.
1339 * Examples:
1340 * - ou=1.1.1,ou=limux becomes limux/1.1.1
1341 * - cn=bla,ou=foo,dc=local becomes foo/bla or foo/bla/local, depending
1342 * on the value for $base.
1343 *
1344 * If the specified DN contains a basedn which either matches
1345 * the specified base or $config->current['BASE'] it is stripped.
1346 *
1347 * \param string 'dn' the subject for the conversion
1348 * \param string 'base' the base dn, default: $this->config->current['BASE']
1349 * \return a string in the form as described above
1350 */
1351 function convert_department_dn($dn, $base = NULL)
1352 {
1353 global $config;
1355 if($base == NULL){
1356 $base = $config->current['BASE'];
1357 }
1359 /* Build a sub-directory style list of the tree level
1360 specified in $dn */
1361 $dn = preg_replace("/".preg_quote($base, '/')."$/i","",$dn);
1362 if(empty($dn)) return("/");
1365 $dep= "";
1366 foreach (explode(',', $dn) as $rdn){
1367 $dep = preg_replace("/^[^=]+=/","",$rdn)."/".$dep;
1368 }
1370 /* Return and remove accidently trailing slashes */
1371 return(trim($dep, "/"));
1372 }
1375 /*! \brief Return the last sub department part of a '/level1/level2/.../' style value.
1376 *
1377 * Given a DN in the sub-directory style list form, this function returns the
1378 * last sub department part and removes the trailing '/'.
1379 *
1380 * Example:
1381 * \code
1382 * print get_sub_department('local/foo/bar');
1383 * # Prints 'bar'
1384 * print get_sub_department('local/foo/bar/');
1385 * # Also prints 'bar'
1386 * \endcode
1387 *
1388 * \param string 'value' the full department string in sub-directory-style
1389 */
1390 function get_sub_department($value)
1391 {
1392 return (LDAP::fix(preg_replace("%^.*/([^/]+)/?$%", "\\1", $value)));
1393 }
1396 /*! \brief Get the OU of a certain RDN
1397 *
1398 * Given a certain RDN name (ogroupRDN, applicationRDN etc.) this
1399 * function returns either a configured OU or the default
1400 * for the given RDN.
1401 *
1402 * Example:
1403 * \code
1404 * # Determine LDAP base where systems are stored
1405 * $base = get_ou("systemManagement", "systemRDN") . $this->config->current['BASE'];
1406 * $ldap->cd($base);
1407 * \endcode
1408 * */
1409 function get_ou($class,$name)
1410 {
1411 global $config;
1413 if(!$config->configRegistry->propertyExists($class,$name)){
1414 trigger_error("No department mapping found for type ".$name);
1415 return "";
1416 }
1418 $ou = $config->configRegistry->getPropertyValue($class,$name);
1419 if ($ou != ""){
1420 if (!preg_match('/^[^=]+=[^=]+/', $ou)){
1421 $ou = @LDAP::convert("ou=$ou");
1422 } else {
1423 $ou = @LDAP::convert("$ou");
1424 }
1426 if(preg_match("/".preg_quote($config->current['BASE'], '/')."$/",$ou)){
1427 return($ou);
1428 }else{
1429 if(!preg_match("/,$/", $ou)){
1430 return("$ou,");
1431 }else{
1432 return($ou);
1433 }
1434 }
1436 } else {
1437 return "";
1438 }
1439 }
1442 /*! \brief Get the OU for users
1443 *
1444 * Frontend for get_ou() with userRDN
1445 * */
1446 function get_people_ou()
1447 {
1448 return (get_ou("core", "userRDN"));
1449 }
1452 /*! \brief Get the OU for groups
1453 *
1454 * Frontend for get_ou() with groupRDN
1455 */
1456 function get_groups_ou()
1457 {
1458 return (get_ou("core", "groupRDN"));
1459 }
1462 /*! \brief Get the OU for winstations
1463 *
1464 * Frontend for get_ou() with sambaMachineAccountRDN
1465 */
1466 function get_winstations_ou()
1467 {
1468 return (get_ou("wingeneric", "sambaMachineAccountRDN"));
1469 }
1472 /*! \brief Return a base from a given user DN
1473 *
1474 * \code
1475 * get_base_from_people('cn=Max Muster,dc=local')
1476 * # Result is 'dc=local'
1477 * \endcode
1478 *
1479 * \param string 'dn' a DN
1480 * */
1481 function get_base_from_people($dn)
1482 {
1483 global $config;
1485 $pattern= "/^[^,]+,".preg_quote(get_people_ou(), '/')."/i";
1486 $base= preg_replace($pattern, '', $dn);
1488 /* Set to base, if we're not on a correct subtree */
1489 if (!isset($config->idepartments[$base])){
1490 $base= $config->current['BASE'];
1491 }
1493 return ($base);
1494 }
1497 /*! \brief Check if strict naming rules are configured
1498 *
1499 * Return TRUE or FALSE depending on weither strictNamingRules
1500 * are configured or not.
1501 *
1502 * \return Returns TRUE if strictNamingRules is set to true or if the
1503 * config object is not available, otherwise FALSE.
1504 */
1505 function strict_uid_mode()
1506 {
1507 global $config;
1509 if (isset($config)){
1510 return ($config->get_cfg_value("core","strictNamingRules") == "true");
1511 }
1512 return (TRUE);
1513 }
1516 /*! \brief Get regular expression for checking uids based on the naming
1517 * rules.
1518 * \return string Returns the desired regular expression
1519 */
1520 function get_uid_regexp()
1521 {
1522 /* STRICT adds spaces and case insenstivity to the uid check.
1523 This is dangerous and should not be used. */
1524 if (strict_uid_mode()){
1525 return "^[a-z0-9_-]+$";
1526 } else {
1527 return "^[a-zA-Z0-9 _.-]+$";
1528 }
1529 }
1532 /*! \brief Generate a lock message
1533 *
1534 * This message shows a warning to the user, that a certain object is locked
1535 * and presents some choices how the user can proceed. By default this
1536 * is 'Cancel' or 'Edit anyway', but depending on the function call
1537 * its possible to allow readonly access, too.
1538 *
1539 * Example usage:
1540 * \code
1541 * if (($user = get_lock($this->dn)) != "") {
1542 * return(gen_locked_message($user, $this->dn, TRUE));
1543 * }
1544 * \endcode
1545 *
1546 * \param string 'user' the user who holds the lock
1547 * \param string 'dn' the locked DN
1548 * \param boolean 'allow_readonly' TRUE if readonly access should be permitted,
1549 * FALSE if not (default).
1550 *
1551 *
1552 */
1553 function gen_locked_message($user, $dn, $allow_readonly = FALSE)
1554 {
1555 global $plug, $config;
1557 session::set('dn', $dn);
1558 $remove= false;
1560 /* Save variables from LOCK_VARS_TO_USE in session - for further editing */
1561 if( session::is_set('LOCK_VARS_TO_USE') && count(session::get('LOCK_VARS_TO_USE'))){
1563 $LOCK_VARS_USED_GET = array();
1564 $LOCK_VARS_USED_POST = array();
1565 $LOCK_VARS_USED_REQUEST = array();
1566 $LOCK_VARS_TO_USE = session::get('LOCK_VARS_TO_USE');
1568 foreach($LOCK_VARS_TO_USE as $name){
1570 if(empty($name)){
1571 continue;
1572 }
1574 foreach($_POST as $Pname => $Pvalue){
1575 if(preg_match($name,$Pname)){
1576 $LOCK_VARS_USED_POST[$Pname] = $_POST[$Pname];
1577 }
1578 }
1580 foreach($_GET as $Pname => $Pvalue){
1581 if(preg_match($name,$Pname)){
1582 $LOCK_VARS_USED_GET[$Pname] = $_GET[$Pname];
1583 }
1584 }
1586 foreach($_REQUEST as $Pname => $Pvalue){
1587 if(preg_match($name,$Pname)){
1588 $LOCK_VARS_USED_REQUEST[$Pname] = $_REQUEST[$Pname];
1589 }
1590 }
1591 }
1592 session::set('LOCK_VARS_TO_USE',array());
1593 session::set('LOCK_VARS_USED_GET' , $LOCK_VARS_USED_GET);
1594 session::set('LOCK_VARS_USED_POST' , $LOCK_VARS_USED_POST);
1595 session::set('LOCK_VARS_USED_REQUEST' , $LOCK_VARS_USED_REQUEST);
1596 }
1598 /* Prepare and show template */
1599 $smarty= get_smarty();
1600 $smarty->assign("allow_readonly",$allow_readonly);
1601 $msg= msgPool::buildList($dn);
1603 $smarty->assign ("dn", $msg);
1604 if ($remove){
1605 $smarty->assign ("action", _("Continue anyway"));
1606 } else {
1607 $smarty->assign ("action", _("Edit anyway"));
1608 }
1610 $smarty->assign ("message", _("These entries are currently locked:"). $msg);
1612 return ($smarty->fetch (get_template_path('islocked.tpl')));
1613 }
1616 /*! \brief Return a string/HTML representation of an array
1617 *
1618 * This returns a string representation of a given value.
1619 * It can be used to dump arrays, where every value is printed
1620 * on its own line. The output is targetted at HTML output, it uses
1621 * '<br>' for line breaks. If the value is already a string its
1622 * returned unchanged.
1623 *
1624 * \param mixed 'value' Whatever needs to be printed.
1625 * \return string
1626 */
1627 function to_string ($value)
1628 {
1629 /* If this is an array, generate a text blob */
1630 if (is_array($value)){
1631 $ret= "";
1632 foreach ($value as $line){
1633 $ret.= $line."<br>\n";
1634 }
1635 return ($ret);
1636 } else {
1637 return ($value);
1638 }
1639 }
1642 /*! \brief Return a list of all printers in the current base
1643 *
1644 * Returns an array with the CNs of all printers (objects with
1645 * objectClass gotoPrinter) in the current base.
1646 * ($config->current['BASE']).
1647 *
1648 * Example:
1649 * \code
1650 * $this->printerList = get_printer_list();
1651 * \endcode
1652 *
1653 * \return array an array with the CNs of the printers as key and value.
1654 * */
1655 function get_printer_list()
1656 {
1657 global $config;
1658 $res = array();
1659 $data = get_list('(objectClass=gotoPrinter)',"printer",$config->current['BASE'], array('cn'), GL_SUBSEARCH);
1660 foreach($data as $attrs ){
1661 $res[$attrs['cn'][0]] = $attrs['cn'][0];
1662 }
1663 return $res;
1664 }
1667 /*! \brief Function to rewrite some problematic characters
1668 *
1669 * This function takes a string and replaces all possibly characters in it
1670 * with less problematic characters, as defined in $REWRITE.
1671 *
1672 * \param string 's' the string to rewrite
1673 * \return string 's' the result of the rewrite
1674 * */
1675 function rewrite($s)
1676 {
1677 global $REWRITE;
1679 foreach ($REWRITE as $key => $val){
1680 $s= str_replace("$key", "$val", $s);
1681 }
1683 return ($s);
1684 }
1687 /*! \brief Return the base of a given DN
1688 *
1689 * \param string 'dn' a DN
1690 * */
1691 function dn2base($dn)
1692 {
1693 global $config;
1695 if (get_people_ou() != ""){
1696 $dn= preg_replace('/,'.get_people_ou().'/i' , ',', $dn);
1697 }
1698 if (get_groups_ou() != ""){
1699 $dn= preg_replace('/,'.get_groups_ou().'/i' , ',', $dn);
1700 }
1701 $base= preg_replace ('/^[^,]+,/i', '', $dn);
1703 return ($base);
1704 }
1707 /*! \brief Check if a given command exists and is executable
1708 *
1709 * Test if a given cmdline contains an executable command. Strips
1710 * arguments from the given cmdline.
1711 *
1712 * \param string 'cmdline' the cmdline to check
1713 * \return TRUE if command exists and is executable, otherwise FALSE.
1714 * */
1715 function check_command($cmdline)
1716 {
1717 $cmd= preg_replace("/ .*$/", "", $cmdline);
1719 /* Check if command exists in filesystem */
1720 if (!file_exists($cmd)){
1721 return (FALSE);
1722 }
1724 /* Check if command is executable */
1725 if (!is_executable($cmd)){
1726 return (FALSE);
1727 }
1729 return (TRUE);
1730 }
1733 /*! \brief Print plugin HTML header
1734 *
1735 * \param string 'image' the path of the image to be used next to the headline
1736 * \param string 'image' the headline
1737 * \param string 'info' additional information to print
1738 */
1739 function print_header($image, $headline, $info= "")
1740 {
1741 $display= "<div class=\"plugtop\">\n";
1742 $display.= " <p class=\"center\" style=\"margin:0px 0px 0px 5px;padding:0px;font-size:24px;\"><img class=\"center\" src=\"$image\" align=\"middle\" alt=\"*\"> $headline</p>\n";
1743 $display.= "</div>\n";
1745 if ($info != ""){
1746 $display.= "<div class=\"pluginfo\">\n";
1747 $display.= "$info";
1748 $display.= "</div>\n";
1749 } else {
1750 $display.= "<div style=\"height:5px;\">\n";
1751 $display.= " ";
1752 $display.= "</div>\n";
1753 }
1754 return ($display);
1755 }
1758 /*! \brief Print page number selector for paged lists
1759 *
1760 * \param int 'dcnt' Number of entries
1761 * \param int 'start' Page to start
1762 * \param int 'range' Number of entries per page
1763 * \param string 'post_var' POST variable to check for range
1764 */
1765 function range_selector($dcnt,$start,$range=25,$post_var=false)
1766 {
1768 /* Entries shown left and right from the selected entry */
1769 $max_entries= 10;
1771 /* Initialize and take care that max_entries is even */
1772 $output="";
1773 if ($max_entries & 1){
1774 $max_entries++;
1775 }
1777 if((!empty($post_var))&&(isset($_POST[$post_var]))){
1778 $range= $_POST[$post_var];
1779 }
1781 /* Prevent output to start or end out of range */
1782 if ($start < 0 ){
1783 $start= 0 ;
1784 }
1785 if ($start >= $dcnt){
1786 $start= $range * (int)(($dcnt / $range) + 0.5);
1787 }
1789 $numpages= (($dcnt / $range));
1790 if(((int)($numpages))!=($numpages)){
1791 $numpages = (int)$numpages + 1;
1792 }
1793 if ((((int)$numpages) <= 1 )&&(!$post_var)){
1794 return ("");
1795 }
1796 $ppage= (int)(($start / $range) + 0.5);
1799 /* Align selected page to +/- max_entries/2 */
1800 $begin= $ppage - $max_entries/2;
1801 $end= $ppage + $max_entries/2;
1803 /* Adjust begin/end, so that the selected value is somewhere in
1804 the middle and the size is max_entries if possible */
1805 if ($begin < 0){
1806 $end-= $begin + 1;
1807 $begin= 0;
1808 }
1809 if ($end > $numpages) {
1810 $end= $numpages;
1811 }
1812 if (($end - $begin) < $max_entries && ($end - $max_entries) > 0){
1813 $begin= $end - $max_entries;
1814 }
1816 if($post_var){
1817 $output.= "<div style='border:1px solid #E0E0E0; background-color:#FFFFFF;'>
1818 <table summary='' width='100%'><tr><td style='width:25%'></td><td style='text-align:center;'>";
1819 }else{
1820 $output.= "<div style='border:1px solid #E0E0E0; background-color:#FFFFFF;'>";
1821 }
1823 /* Draw decrement */
1824 if ($start > 0 ) {
1825 $output.=" <a href= \"main.php?plug=".validate($_GET['plug'])."&start=".
1826 (($start-$range))."\">".
1827 "<img class=\"center\" alt=\"\" src=\"images/back.png\" border=0 align=\"middle\"></a>";
1828 }
1830 /* Draw pages */
1831 for ($i= $begin; $i < $end; $i++) {
1832 if ($ppage == $i){
1833 $output.= "<a style=\"vertical-align:middle;background-color:#D0D0D0;\" href=\"main.php?plug=".
1834 validate($_GET['plug'])."&start=".
1835 ($i*$range)."\"> ".($i+1)." </a>";
1836 } else {
1837 $output.= "<a style=\"vertical-align:middle;\" href=\"main.php?plug=".validate($_GET['plug']).
1838 "&start=".($i*$range)."\"> ".($i+1)." </a>";
1839 }
1840 }
1842 /* Draw increment */
1843 if($start < ($dcnt-$range)) {
1844 $output.=" <a href= \"main.php?plug=".validate($_GET['plug'])."&start=".
1845 (($start+($range)))."\">".
1846 "<img class=\"center\" alt=\"\" src=\"images/forward.png\" border=\"0\" align=\"middle\"></a>";
1847 }
1849 if(($post_var)&&($numpages)){
1850 $output.= "</td><td style='width:25%;text-align:right;vertical-align:middle;'> "._("Entries per page")." <select style='vertical-align:middle;' name='".$post_var."' onChange='javascript:document.mainform.submit()'>";
1851 foreach(array(20,50,100,200,"all") as $num){
1852 if($num == "all"){
1853 $var = 10000;
1854 }else{
1855 $var = $num;
1856 }
1857 if($var == $range){
1858 $output.="\n<option selected='selected' value='".$var."'>".$num."</option>";
1859 }else{
1860 $output.="\n<option value='".$var."'>".$num."</option>";
1861 }
1862 }
1863 $output.= "</select></td></tr></table></div>";
1864 }else{
1865 $output.= "</div>";
1866 }
1868 return($output);
1869 }
1873 /*! \brief Generate HTML for the 'Back' button */
1874 function back_to_main()
1875 {
1876 $string= '<br><p class="plugbottom"><input type=submit name="password_back" value="'.
1877 msgPool::backButton().'"></p><input type="hidden" name="ignore">';
1879 return ($string);
1880 }
1883 /*! \brief Put netmask in n.n.n.n format
1884 * \param string 'netmask' The netmask
1885 * \return string Converted netmask
1886 */
1887 function normalize_netmask($netmask)
1888 {
1889 /* Check for notation of netmask */
1890 if (!preg_match('/^([0-9]+\.){3}[0-9]+$/', $netmask)){
1891 $num= (int)($netmask);
1892 $netmask= "";
1894 for ($byte= 0; $byte<4; $byte++){
1895 $result=0;
1897 for ($i= 7; $i>=0; $i--){
1898 if ($num-- > 0){
1899 $result+= pow(2,$i);
1900 }
1901 }
1903 $netmask.= $result.".";
1904 }
1906 return (preg_replace('/\.$/', '', $netmask));
1907 }
1909 return ($netmask);
1910 }
1913 /*! \brief Return the number of set bits in the netmask
1914 *
1915 * For a given subnetmask (for example 255.255.255.0) this returns
1916 * the number of set bits.
1917 *
1918 * Example:
1919 * \code
1920 * $bits = netmask_to_bits('255.255.255.0') # Returns 24
1921 * $bits = netmask_to_bits('255.255.254.0') # Returns 23
1922 * \endcode
1923 *
1924 * Be aware of the fact that the function does not check
1925 * if the given subnet mask is actually valid. For example:
1926 * Bad examples:
1927 * \code
1928 * $bits = netmask_to_bits('255.0.0.255') # Returns 16
1929 * $bits = netmask_to_bits('255.255.0.255') # Returns 24
1930 * \endcode
1931 */
1932 function netmask_to_bits($netmask)
1933 {
1934 list($nm0, $nm1, $nm2, $nm3)= explode('.', $netmask);
1935 $res= 0;
1937 for ($n= 0; $n<4; $n++){
1938 $start= 255;
1939 $name= "nm$n";
1941 for ($i= 0; $i<8; $i++){
1942 if ($start == (int)($$name)){
1943 $res+= 8 - $i;
1944 break;
1945 }
1946 $start-= pow(2,$i);
1947 }
1948 }
1950 return ($res);
1951 }
1954 /*! \brief Recursion helper for gen_id() */
1955 function recurse($rule, $variables)
1956 {
1957 $result= array();
1959 if (!count($variables)){
1960 return array($rule);
1961 }
1963 reset($variables);
1964 $key= key($variables);
1965 $val= current($variables);
1966 unset ($variables[$key]);
1968 foreach($val as $possibility){
1969 $nrule= str_replace("{$key}", $possibility, $rule);
1970 $result= array_merge($result, recurse($nrule, $variables));
1971 }
1973 return ($result);
1974 }
1977 /*! \brief Expands user ID based on possible rules
1978 *
1979 * Unroll given rule string by filling in attributes.
1980 *
1981 * \param string 'rule' The rule string from gosa.conf.
1982 * \param array 'attributes' A dictionary of attribute/value mappings
1983 * \return string Expanded string, still containing the id keyword.
1984 */
1985 function expand_id($rule, $attributes)
1986 {
1987 /* Check for id rule */
1988 if(preg_match('/^id(:|#|!)\d+$/',$rule)){
1989 return (array("{$rule}"));
1990 }
1992 /* Check for clean attribute */
1993 if (preg_match('/^%[a-zA-Z0-9]+$/', $rule)){
1994 $rule= preg_replace('/^%/', '', $rule);
1995 $val= rewrite(str_replace(' ', '', strtolower($attributes[$rule])));
1996 return (array($val));
1997 }
1999 /* Check for attribute with parameters */
2000 if (preg_match('/^%[a-zA-Z0-9]+\[[0-9-]+\]$/', $rule)){
2001 $param= preg_replace('/^[^[]+\[([^]]+)]$/', '\\1', $rule);
2002 $part= preg_replace('/^%/', '', preg_replace('/\[.*$/', '', $rule));
2003 $val= rewrite(str_replace(' ', '', strtolower($attributes[$part])));
2004 $start= preg_replace ('/-.*$/', '', $param);
2005 $stop = preg_replace ('/^[^-]+-/', '', $param);
2007 /* Assemble results */
2008 $result= array();
2009 for ($i= $start; $i<= $stop; $i++){
2010 $result[]= substr($val, 0, $i);
2011 }
2012 return ($result);
2013 }
2015 echo "Error in idGenerator string: don't know how to handle rule $rule.\n";
2016 return (array($rule));
2017 }
2020 /*! \brief Generate a list of uid proposals based on a rule
2021 *
2022 * Unroll given rule string by filling in attributes and replacing
2023 * all keywords.
2024 *
2025 * \param string 'rule' The rule string from gosa.conf.
2026 * \param array 'attributes' A dictionary of attribute/value mappings
2027 * \return array List of valid not used uids
2028 */
2029 function gen_uids($rule, $attributes)
2030 {
2031 global $config;
2033 /* Search for keys and fill the variables array with all
2034 possible values for that key. */
2035 $part= "";
2036 $trigger= false;
2037 $stripped= "";
2038 $variables= array();
2040 for ($pos= 0, $l= strlen($rule); $pos < $l; $pos++){
2042 if ($rule[$pos] == "{" ){
2043 $trigger= true;
2044 $part= "";
2045 continue;
2046 }
2048 if ($rule[$pos] == "}" ){
2049 $variables[$pos]= expand_id($part, $attributes);
2050 $stripped.= "{".$pos."}";
2051 $trigger= false;
2052 continue;
2053 }
2055 if ($trigger){
2056 $part.= $rule[$pos];
2057 } else {
2058 $stripped.= $rule[$pos];
2059 }
2060 }
2062 /* Recurse through all possible combinations */
2063 $proposed= recurse($stripped, $variables);
2065 /* Get list of used ID's */
2066 $ldap= $config->get_ldap_link();
2067 $ldap->cd($config->current['BASE']);
2069 /* Remove used uids and watch out for id tags */
2070 $ret= array();
2071 foreach($proposed as $uid){
2073 /* Check for id tag and modify uid if needed */
2074 if(preg_match('/\{id(:|!)\d+}/',$uid, $m)){
2075 $size= preg_replace('/^.*{id(:|!)(\d+)}.*$/', '\\2', $uid);
2077 $start= $m[1]==":"?0:-1;
2078 for ($i= $start, $p= pow(10,$size)-1; $i < $p; $i++){
2079 if ($i == -1) {
2080 $number= "";
2081 } else {
2082 $number= sprintf("%0".$size."d", $i+1);
2083 }
2084 $res= preg_replace('/{id(:|!)\d+}/', $number, $uid);
2086 $ldap->search("(uid=".preg_replace('/[{}]/', '', $res).")",array('dn'));
2087 if($ldap->count() == 0){
2088 $uid= $res;
2089 break;
2090 }
2091 }
2093 /* Remove link if nothing has been found */
2094 $uid= preg_replace('/{id(:|!)\d+}/', '', $uid);
2095 }
2097 if(preg_match('/\{id#\d+}/',$uid)){
2098 $size= preg_replace('/^.*{id#(\d+)}.*$/', '\\1', $uid);
2100 while (true){
2101 mt_srand((double) microtime()*1000000);
2102 $number= sprintf("%0".$size."d", mt_rand(0, pow(10, $size)-1));
2103 $res= preg_replace('/{id#(\d+)}/', $number, $uid);
2104 $ldap->search("(uid=".preg_replace('/[{}]/', '', $res).")",array('dn'));
2105 if($ldap->count() == 0){
2106 $uid= $res;
2107 break;
2108 }
2109 }
2111 /* Remove link if nothing has been found */
2112 $uid= preg_replace('/{id#\d+}/', '', $uid);
2113 }
2115 /* Don't assign used ones */
2116 $ldap->search("(uid=".preg_replace('/[{}]/', '', $uid).")",array('dn'));
2117 if($ldap->count() == 0){
2118 /* Add uid, but remove {} first. These are invalid anyway. */
2119 $ret[]= preg_replace('/[{}]/', '', $uid);
2120 }
2121 }
2123 return(array_unique($ret));
2124 }
2127 /*! \brief Convert various data sizes to bytes
2128 *
2129 * Given a certain value in the format n(g|m|k), where n
2130 * is a value and (g|m|k) stands for Gigabyte, Megabyte and Kilobyte
2131 * this function returns the byte value.
2132 *
2133 * \param string 'value' a value in the above specified format
2134 * \return a byte value or the original value if specified string is simply
2135 * a numeric value
2136 *
2137 */
2138 function to_byte($value) {
2139 $value= strtolower(trim($value));
2141 if(!is_numeric(substr($value, -1))) {
2143 switch(substr($value, -1)) {
2144 case 'g':
2145 $mult= 1073741824;
2146 break;
2147 case 'm':
2148 $mult= 1048576;
2149 break;
2150 case 'k':
2151 $mult= 1024;
2152 break;
2153 }
2155 return ($mult * (int)substr($value, 0, -1));
2156 } else {
2157 return $value;
2158 }
2159 }
2162 /*! \brief Check if a value exists in an array (case-insensitive)
2163 *
2164 * This is just as http://php.net/in_array except that the comparison
2165 * is case-insensitive.
2166 *
2167 * \param string 'value' needle
2168 * \param array 'items' haystack
2169 */
2170 function in_array_ics($value, $items)
2171 {
2172 return preg_grep('/^'.preg_quote($value, '/').'$/i', $items);
2173 }
2176 /*! \brief Removes malicious characters from a (POST) string. */
2177 function validate($string)
2178 {
2179 return (strip_tags(str_replace('\0', '', $string)));
2180 }
2183 /*! \brief Evaluate the current GOsa version from the build in revision string */
2184 function get_gosa_version()
2185 {
2186 global $svn_revision, $svn_path;
2188 /* Extract informations */
2189 $revision= preg_replace('/^[^0-9]*([0-9]+)[^0-9]*$/', '\1', $svn_revision);
2191 /* Release or development? */
2192 if (preg_match('%/gosa/trunk/%', $svn_path)){
2193 return (sprintf(_("GOsa development snapshot (Rev %s)"), bold($revision)));
2194 } else {
2195 $release= preg_replace('%^.*/([^/]+)/include/functions.inc.*$%', '\1', $svn_path);
2196 return (sprintf(_("GOsa $release"), $revision));
2197 }
2198 }
2201 /*! \brief Recursively delete a path in the file system
2202 *
2203 * Will delete the given path and all its files recursively.
2204 * Can also follow links if told so.
2205 *
2206 * \param string 'path'
2207 * \param boolean 'followLinks' TRUE to follow links, FALSE (default)
2208 * for not following links
2209 */
2210 function rmdirRecursive($path, $followLinks=false) {
2211 $dir= opendir($path);
2212 while($entry= readdir($dir)) {
2213 if(is_file($path."/".$entry) || ((!$followLinks) && is_link($path."/".$entry))) {
2214 unlink($path."/".$entry);
2215 } elseif (is_dir($path."/".$entry) && $entry!='.' && $entry!='..') {
2216 rmdirRecursive($path."/".$entry);
2217 }
2218 }
2219 closedir($dir);
2220 return rmdir($path);
2221 }
2224 /*! \brief Get directory content information
2225 *
2226 * Returns the content of a directory as an array in an
2227 * ascended sorted manner.
2228 *
2229 * \param string 'path'
2230 * \param boolean weither to sort the content descending.
2231 */
2232 function scan_directory($path,$sort_desc=false)
2233 {
2234 $ret = false;
2236 /* is this a dir ? */
2237 if(is_dir($path)) {
2239 /* is this path a readable one */
2240 if(is_readable($path)){
2242 /* Get contents and write it into an array */
2243 $ret = array();
2245 $dir = opendir($path);
2247 /* Is this a correct result ?*/
2248 if($dir){
2249 while($fp = readdir($dir))
2250 $ret[]= $fp;
2251 }
2252 }
2253 }
2254 /* Sort array ascending , like scandir */
2255 sort($ret);
2257 /* Sort descending if parameter is sort_desc is set */
2258 if($sort_desc) {
2259 $ret = array_reverse($ret);
2260 }
2262 return($ret);
2263 }
2266 /*! \brief Clean the smarty compile dir */
2267 function clean_smarty_compile_dir($directory)
2268 {
2269 global $svn_revision;
2271 if(is_dir($directory) && is_readable($directory)) {
2272 // Set revision filename to REVISION
2273 $revision_file= $directory."/REVISION";
2275 /* Is there a stamp containing the current revision? */
2276 if(!file_exists($revision_file)) {
2277 // create revision file
2278 create_revision($revision_file, $svn_revision);
2279 } else {
2280 # check for "$config->...['CONFIG']/revision" and the
2281 # contents should match the revision number
2282 if(!compare_revision($revision_file, $svn_revision)){
2283 // If revision differs, clean compile directory
2284 foreach(scan_directory($directory) as $file) {
2285 if(($file==".")||($file=="..")) continue;
2286 if( is_file($directory."/".$file) &&
2287 is_writable($directory."/".$file)) {
2288 // delete file
2289 if(!unlink($directory."/".$file)) {
2290 msg_dialog::display(_("Internal error"), sprintf(_("File %s cannot be deleted!"), bold($directory."/".$file)), ERROR_DIALOG);
2291 // This should never be reached
2292 }
2293 } elseif(is_dir($directory."/".$file) &&
2294 is_writable($directory."/".$file)) {
2295 // Just recursively delete it
2296 rmdirRecursive($directory."/".$file);
2297 }
2298 }
2299 // We should now create a fresh revision file
2300 clean_smarty_compile_dir($directory);
2301 } else {
2302 // Revision matches, nothing to do
2303 }
2304 }
2305 } else {
2306 // Smarty compile dir is not accessible
2307 // (Smarty will warn about this)
2308 }
2309 }
2312 function create_revision($revision_file, $revision)
2313 {
2314 $result= false;
2316 if(is_dir(dirname($revision_file)) && is_writable(dirname($revision_file))) {
2317 if($fh= fopen($revision_file, "w")) {
2318 if(fwrite($fh, $revision)) {
2319 $result= true;
2320 }
2321 }
2322 fclose($fh);
2323 } else {
2324 msg_dialog::display(_("Internal error"), _("Cannot write revision file!"), ERROR_DIALOG);
2325 }
2327 return $result;
2328 }
2331 function compare_revision($revision_file, $revision)
2332 {
2333 // false means revision differs
2334 $result= false;
2336 if(file_exists($revision_file) && is_readable($revision_file)) {
2337 // Open file
2338 if($fh= fopen($revision_file, "r")) {
2339 // Compare File contents with current revision
2340 if($revision == fread($fh, filesize($revision_file))) {
2341 $result= true;
2342 }
2343 } else {
2344 msg_dialog::display(_("Internal error"), _("Cannot write revision file!"), ERROR_DIALOG);
2345 }
2346 // Close file
2347 fclose($fh);
2348 }
2350 return $result;
2351 }
2354 /*! \brief Return HTML for a progressbar
2355 *
2356 * \code
2357 * $smarty->assign("installprogress", progressbar($current_progress_in_percent),100,15,true);
2358 * \endcode
2359 *
2360 * \param int 'percentage' Value to display
2361 * \param int 'width' width of the resulting output
2362 * \param int 'height' height of the resulting output
2363 * \param boolean 'showtext' weither to show the percentage in the progressbar or not
2364 * */
2365 function progressbar($percentage, $width= 200, $height= 14, $showText= false, $colorize= true, $id= "")
2366 {
2367 $text= "";
2368 $class= "";
2369 $style= "width:${width}px;height:${height}px;";
2371 // Fix percentage range
2372 $percentage= floor($percentage);
2373 if ($percentage > 100) {
2374 $percentage= 100;
2375 }
2376 if ($percentage < 0) {
2377 $percentage= 0;
2378 }
2380 // Only show text if we're above 10px height
2381 if ($showText && $height>10){
2382 $text= $percentage."%";
2383 }
2385 // Set font size
2386 $style.= "font-size:".($height-3)."px;";
2388 // Set color
2389 if ($colorize){
2390 if ($percentage < 70) {
2391 $class= " progress-low";
2392 } elseif ($percentage < 80) {
2393 $class= " progress-mid";
2394 } elseif ($percentage < 90) {
2395 $class= " progress-high";
2396 } else {
2397 $class= " progress-full";
2398 }
2399 }
2401 // Apply gradients
2402 $hoffset= floor($height / 2) + 4;
2403 $woffset= floor(($width+5) * (100-$percentage) / 100);
2404 foreach (array("-moz-box-shadow", "-webkit-box-shadow", "box-shadow") as $type) {
2405 $style.="$type:
2406 0 0 2px rgba(255, 255, 255, 0.4) inset,
2407 0 4px 6px rgba(255, 255, 255, 0.4) inset,
2408 0 ".$hoffset."px 0 -2px rgba(255, 255, 255, 0.2) inset,
2409 -".$woffset."px 0 0 -2px rgba(255, 255, 255, 0.2) inset,
2410 -".($woffset+1)."px 0 0 -2px rgba(0, 0, 0, 0.6) inset,
2411 0pt ".($hoffset+1)."px 8px rgba(0, 0, 0, 0.3) inset,
2412 0pt 1px 0px rgba(0, 0, 0, 0.2);";
2413 }
2415 // Set ID
2416 if ($id != ""){
2417 $id= "id='$id'";
2418 }
2420 return "<div class='progress$class' $id style='$style'>$text</div>";
2421 }
2424 /*! \brief Lookup a key in an array case-insensitive
2425 *
2426 * Given an associative array this can lookup the value of
2427 * a certain key, regardless of the case.
2428 *
2429 * \code
2430 * $items = array ('FOO' => 'blub', 'bar' => 'blub');
2431 * array_key_ics('foo', $items); # Returns 'blub'
2432 * array_key_ics('BAR', $items); # Returns 'blub'
2433 * \endcode
2434 *
2435 * \param string 'key' needle
2436 * \param array 'items' haystack
2437 */
2438 function array_key_ics($ikey, $items)
2439 {
2440 $tmp= array_change_key_case($items, CASE_LOWER);
2441 $ikey= strtolower($ikey);
2442 if (isset($tmp[$ikey])){
2443 return($tmp[$ikey]);
2444 }
2446 return ('');
2447 }
2450 /*! \brief Determine if two arrays are different
2451 *
2452 * \param array 'src'
2453 * \param array 'dst'
2454 * \return boolean TRUE or FALSE
2455 * */
2456 function array_differs($src, $dst)
2457 {
2458 /* If the count is differing, the arrays differ */
2459 if (count ($src) != count ($dst)){
2460 return (TRUE);
2461 }
2463 return (count(array_diff($src, $dst)) != 0);
2464 }
2467 function saveFilter($a_filter, $values)
2468 {
2469 if (isset($_POST['regexit'])){
2470 $a_filter["regex"]= $_POST['regexit'];
2472 foreach($values as $type){
2473 if (isset($_POST[$type])) {
2474 $a_filter[$type]= "checked";
2475 } else {
2476 $a_filter[$type]= "";
2477 }
2478 }
2479 }
2481 /* React on alphabet links if needed */
2482 if (isset($_GET['search'])){
2483 $s= mb_substr(validate($_GET['search']), 0, 1, "UTF8")."*";
2484 if ($s == "**"){
2485 $s= "*";
2486 }
2487 $a_filter['regex']= $s;
2488 }
2490 return ($a_filter);
2491 }
2494 /*! \brief Escape all LDAP filter relevant characters */
2495 function normalizeLdap($input)
2496 {
2497 return (addcslashes($input, '()|'));
2498 }
2501 /*! \brief Return the gosa base directory */
2502 function get_base_dir()
2503 {
2504 global $BASE_DIR;
2506 return $BASE_DIR;
2507 }
2510 /*! \brief Test weither we are allowed to read the object */
2511 function obj_is_readable($dn, $object, $attribute)
2512 {
2513 global $ui;
2515 return preg_match('/r/', $ui->get_permissions($dn, $object, $attribute));
2516 }
2519 /*! \brief Test weither we are allowed to change the object */
2520 function obj_is_writable($dn, $object, $attribute)
2521 {
2522 global $ui;
2524 return preg_match('/w/', $ui->get_permissions($dn, $object, $attribute));
2525 }
2528 /*! \brief Explode a DN into its parts
2529 *
2530 * Similar to explode (http://php.net/explode), but a bit more specific
2531 * for the needs when splitting, exploding LDAP DNs.
2532 *
2533 * \param string 'dn' the DN to split
2534 * \param config-object a config object. only neeeded if DN shall be verified in the LDAP
2535 * \param boolean verify_in_ldap check weither DN is valid
2536 *
2537 */
2538 function gosa_ldap_explode_dn($dn,$config = NULL,$verify_in_ldap=false)
2539 {
2540 /* Initialize variables */
2541 $ret = array("count" => 0); // Set count to 0
2542 $next = true; // if false, then skip next loops and return
2543 $cnt = 0; // Current number of loops
2544 $max = 100; // Just for security, prevent looops
2545 $ldap = NULL; // To check if created result a valid
2546 $keep = ""; // save last failed parse string
2548 /* Check each parsed dn in ldap ? */
2549 if($config!==NULL && $verify_in_ldap){
2550 $ldap = $config->get_ldap_link();
2551 }
2553 /* Lets start */
2554 $called = false;
2555 while(preg_match("/,/",$dn) && $next && $cnt < $max){
2557 $cnt ++;
2558 if(!preg_match("/,/",$dn)){
2559 $next = false;
2560 }
2561 $object = preg_replace("/[,].*$/","",$dn);
2562 $dn = preg_replace("/^[^,]+,/","",$dn);
2564 $called = true;
2566 /* Check if current dn is valid */
2567 if($ldap!==NULL){
2568 $ldap->cd($dn);
2569 $ldap->cat($dn,array("dn"));
2570 if($ldap->count()){
2571 $ret[] = $keep.$object;
2572 $keep = "";
2573 }else{
2574 $keep .= $object.",";
2575 }
2576 }else{
2577 $ret[] = $keep.$object;
2578 $keep = "";
2579 }
2580 }
2582 /* No dn was posted */
2583 if($cnt == 0 && !empty($dn)){
2584 $ret[] = $dn;
2585 }
2587 /* Append the rest */
2588 $test = $keep.$dn;
2589 if($called && !empty($test)){
2590 $ret[] = $keep.$dn;
2591 }
2592 $ret['count'] = count($ret) - 1;
2594 return($ret);
2595 }
2598 function get_base_from_hook($dn, $attrib)
2599 {
2600 global $config;
2602 if ($config->get_cfg_value("core","baseIdHook") != ""){
2604 /* Call hook script - if present */
2605 $command= $config->get_cfg_value("core","baseIdHook");
2607 if ($command != ""){
2608 $command.= " '".LDAP::fix($dn)."' $attrib";
2609 if (check_command($command)){
2610 @DEBUG (DEBUG_SHELL, __LINE__, __FUNCTION__, __FILE__, $command, "Execute");
2611 exec($command, $output);
2612 if (preg_match("/^[0-9]+$/", $output[0])){
2613 return ($output[0]);
2614 } else {
2615 msg_dialog::display(_("Warning"), _("'baseIdHook' is not available. Using default base!"), WARNING_DIALOG);
2616 return ($config->get_cfg_value("core","uidNumberBase"));
2617 }
2618 } else {
2619 msg_dialog::display(_("Warning"), _("'baseIdHook' is not available. Using default base!"), WARNING_DIALOG);
2620 return ($config->get_cfg_value("core","uidNumberBase"));
2621 }
2623 } else {
2625 msg_dialog::display(_("Warning"), _("'baseIdHook' is not available. Using default base!"), WARNING_DIALOG);
2626 return ($config->get_cfg_value("core","uidNumberBase"));
2628 }
2629 }
2630 }
2633 /*! \brief Check if schema version matches the requirements */
2634 function check_schema_version($class, $version)
2635 {
2636 return preg_match("/\(v$version\)/", $class['DESC']);
2637 }
2640 /*! \brief Check if LDAP schema matches the requirements */
2641 function check_schema($cfg,$rfc2307bis = FALSE)
2642 {
2643 $messages= array();
2645 /* Get objectclasses */
2646 $ldap = new ldapMultiplexer(new LDAP($cfg['admin'],$cfg['password'],$cfg['connection'] ,FALSE, $cfg['tls']));
2647 $objectclasses = $ldap->get_objectclasses();
2648 if(count($objectclasses) == 0){
2649 msg_dialog::display(_("Warning"), _("Cannot read schema information from LDAP. Schema validation is not possible!"), WARNING_DIALOG);
2650 }
2652 /* This is the default block used for each entry.
2653 * to avoid unset indexes.
2654 */
2655 $def_check = array("REQUIRED_VERSION" => "0",
2656 "SCHEMA_FILES" => array(),
2657 "CLASSES_REQUIRED" => array(),
2658 "STATUS" => FALSE,
2659 "IS_MUST_HAVE" => FALSE,
2660 "MSG" => "",
2661 "INFO" => "");
2663 /* The gosa base schema */
2664 $checks['gosaObject'] = $def_check;
2665 $checks['gosaObject']['REQUIRED_VERSION'] = "2.6.1";
2666 $checks['gosaObject']['SCHEMA_FILES'] = array("gosa-samba3.schema");
2667 $checks['gosaObject']['CLASSES_REQUIRED'] = array("gosaObject");
2668 $checks['gosaObject']['IS_MUST_HAVE'] = TRUE;
2670 /* GOsa Account class */
2671 $checks["gosaAccount"]["REQUIRED_VERSION"]= "2.6.6";
2672 $checks["gosaAccount"]["SCHEMA_FILES"] = array("gosa-samba3.schema");
2673 $checks["gosaAccount"]["CLASSES_REQUIRED"]= array("gosaAccount");
2674 $checks["gosaAccount"]["IS_MUST_HAVE"] = TRUE;
2675 $checks["gosaAccount"]["INFO"] = _("This class is used to make users appear in GOsa.");
2677 /* GOsa lock entry, used to mark currently edited objects as 'in use' */
2678 $checks["gosaLockEntry"]["REQUIRED_VERSION"] = "2.6.1";
2679 $checks["gosaLockEntry"]["SCHEMA_FILES"] = array("gosa-samba3.schema");
2680 $checks["gosaLockEntry"]["CLASSES_REQUIRED"] = array("gosaLockEntry");
2681 $checks["gosaLockEntry"]["IS_MUST_HAVE"] = TRUE;
2682 $checks["gosaLockEntry"]["INFO"] = _("This class is used to lock entries in order to prevent multiple edits at a time.");
2684 /* Some other checks */
2685 foreach(array(
2686 "gosaCacheEntry" => array("version" => "2.6.1", "class" => "gosaAccount"),
2687 "gosaDepartment" => array("version" => "2.6.1", "class" => "gosaAccount"),
2688 "goFaxAccount" => array("version" => "1.0.4", "class" => "gofaxAccount","file" => "gofax.schema"),
2689 "goFaxSBlock" => array("version" => "1.0.4", "class" => "gofaxAccount","file" => "gofax.schema"),
2690 "goFaxRBlock" => array("version" => "1.0.4", "class" => "gofaxAccount","file" => "gofax.schema"),
2691 "gosaUserTemplate" => array("version" => "2.6.1", "class" => "posixAccount","file" => "nis.schema"),
2692 "gosaMailAccount" => array("version" => "2.6.1", "class" => "mailAccount","file" => "gosa-samba3.schema"),
2693 "gosaProxyAccount" => array("version" => "2.6.1", "class" => "proxyAccount","file" => "gosa-samba3.schema"),
2694 "gosaApplication" => array("version" => "2.6.1", "class" => "appgroup","file" => "gosa.schema"),
2695 "gosaApplicationGroup" => array("version" => "2.6.1", "class" => "appgroup","file" => "gosa.schema"),
2696 "GOhard" => array("version" => "2.6.1", "class" => "terminals","file" => "goto.schema"),
2697 "gotoTerminal" => array("version" => "2.6.1", "class" => "terminals","file" => "goto.schema"),
2698 "goServer" => array("version" => "2.6.1", "class" => "server","file" => "goserver.schema"),
2699 "goTerminalServer" => array("version" => "2.6.1", "class" => "terminals","file" => "goto.schema"),
2700 "goShareServer" => array("version" => "2.6.1", "class" => "terminals","file" => "goto.schema"),
2701 "goNtpServer" => array("version" => "2.6.1", "class" => "terminals","file" => "goto.schema"),
2702 "goSyslogServer" => array("version" => "2.6.1", "class" => "terminals","file" => "goto.schema"),
2703 "goLdapServer" => array("version" => "2.6.1", "class" => "goServer"),
2704 "goCupsServer" => array("version" => "2.6.1", "class" => array("posixAccount", "terminals"),),
2705 "goImapServer" => array("version" => "2.6.1", "class" => array("mailAccount", "mailgroup"),"file" => "gosa-samba3.schema"),
2706 "goKrbServer" => array("version" => "2.6.1", "class" => "goServer"),
2707 "goFaxServer" => array("version" => "2.6.1", "class" => "gofaxAccount","file" => "gofax.schema"),
2708 ) as $name => $values){
2710 $checks[$name] = $def_check;
2711 if(isset($values['version'])){
2712 $checks[$name]["REQUIRED_VERSION"] = $values['version'];
2713 }
2714 if(isset($values['file'])){
2715 $checks[$name]["SCHEMA_FILES"] = array($values['file']);
2716 }
2717 if (isset($values['class'])) {
2718 $checks[$name]["CLASSES_REQUIRED"] = is_array($values['class'])?$values['class']:array($values['class']);
2719 }
2720 }
2721 foreach($checks as $name => $value){
2722 foreach($value['CLASSES_REQUIRED'] as $class){
2724 if(!isset($objectclasses[$name])){
2725 if($value['IS_MUST_HAVE']){
2726 $checks[$name]['STATUS'] = FALSE;
2727 $checks[$name]['MSG'] = sprintf(_("Required object class %s is missing!"), bold($class));
2728 } else {
2729 $checks[$name]['STATUS'] = TRUE;
2730 $checks[$name]['MSG'] = sprintf(_("Optional object class %s is missing!"), bold($class));
2731 }
2732 }elseif(!check_schema_version($objectclasses[$name],$value['REQUIRED_VERSION'])){
2733 $checks[$name]['STATUS'] = FALSE;
2735 $checks[$name]['MSG'] = sprintf(_("Wrong version of required object class %s (!=%s) detected!"), bold($class), bold($value['REQUIRED_VERSION']));
2736 }else{
2737 $checks[$name]['STATUS'] = TRUE;
2738 $checks[$name]['MSG'] = sprintf(_("Class available"));
2739 }
2740 }
2741 }
2743 $tmp = $objectclasses;
2745 /* The gosa base schema */
2746 $checks['posixGroup'] = $def_check;
2747 $checks['posixGroup']['REQUIRED_VERSION'] = "2.6.1";
2748 $checks['posixGroup']['SCHEMA_FILES'] = array("gosa-samba3.schema","gosa-samba2.schema");
2749 $checks['posixGroup']['CLASSES_REQUIRED'] = array("posixGroup");
2750 $checks['posixGroup']['STATUS'] = TRUE;
2751 $checks['posixGroup']['IS_MUST_HAVE'] = TRUE;
2752 $checks['posixGroup']['MSG'] = "";
2753 $checks['posixGroup']['INFO'] = "";
2755 /* Depending on selected rfc2307bis mode, we need different schema configurations */
2756 if(isset($tmp['posixGroup'])){
2758 if($rfc2307bis && isset($tmp['posixGroup']['STRUCTURAL'])){
2759 $checks['posixGroup']['STATUS'] = FALSE;
2760 $checks['posixGroup']['MSG'] = _("RFC 2307bis group schema is enabled, but the current LDAP configuration does not support it!");
2761 $checks['posixGroup']['INFO'] = _("To use RFC 2307bis groups, the objectClass 'posixGroup' must be AUXILIARY.");
2762 }
2763 if(!$rfc2307bis && !isset($tmp['posixGroup']['STRUCTURAL'])){
2764 $checks['posixGroup']['STATUS'] = FALSE;
2765 $checks['posixGroup']['MSG'] = _("RFC 2307bis group schema is disabled, but the current LDAP configuration supports it!");
2766 $checks['posixGroup']['INFO'] = _("To correct this, the objectClass 'posixGroup' must be STRUCTURAL.");
2767 }
2768 }
2770 return($checks);
2771 }
2774 function get_languages($languages_in_own_language = FALSE,$strip_region_tag = FALSE)
2775 {
2776 $tmp = array(
2777 "de_DE" => "German",
2778 "fr_FR" => "French",
2779 "it_IT" => "Italian",
2780 "es_ES" => "Spanish",
2781 "en_US" => "English",
2782 "nl_NL" => "Dutch",
2783 "pl_PL" => "Polish",
2784 "pt_BR" => "Brazilian Portuguese",
2785 #"sv_SE" => "Swedish",
2786 "zh_CN" => "Chinese",
2787 "vi_VN" => "Vietnamese",
2788 "ru_RU" => "Russian");
2790 $tmp2= array(
2791 "de_DE" => _("German"),
2792 "fr_FR" => _("French"),
2793 "it_IT" => _("Italian"),
2794 "es_ES" => _("Spanish"),
2795 "en_US" => _("English"),
2796 "nl_NL" => _("Dutch"),
2797 "pl_PL" => _("Polish"),
2798 "pt_BR" => _("Brazilian Portuguese"),
2799 #"sv_SE" => _("Swedish"),
2800 "zh_CN" => _("Chinese"),
2801 "vi_VN" => _("Vietnamese"),
2802 "ru_RU" => _("Russian"));
2804 $ret = array();
2805 if($languages_in_own_language){
2807 $old_lang = setlocale(LC_ALL, 0);
2809 /* If the locale wasn't correclty set before, there may be an incorrect
2810 locale returned. Something like this:
2811 C_CTYPE=de_DE.UTF-8;LC_NUMERIC=C;LC_TIME=de_DE.UTF-8;LC ...
2812 Extract the locale name from this string and use it to restore old locale.
2813 */
2814 if(preg_match("/LC_CTYPE/",$old_lang)){
2815 $old_lang = preg_replace("/^.*LC_CTYPE=([^;]*).*$/","\\1",$old_lang);
2816 }
2818 foreach($tmp as $key => $name){
2819 $lang = $key.".UTF-8";
2820 setlocale(LC_ALL, $lang);
2821 if($strip_region_tag){
2822 $ret[preg_replace("/^([^_]*).*$/","\\1",$key)] = _($name)." (".$tmp2[$key].")";
2823 }else{
2824 $ret[$key] = _($name)." (".$tmp2[$key].")";
2825 }
2826 }
2827 setlocale(LC_ALL, $old_lang);
2828 }else{
2829 foreach($tmp as $key => $name){
2830 if($strip_region_tag){
2831 $ret[preg_replace("/^([^_]*).*/","\\1",$key)] = _($name);
2832 }else{
2833 $ret[$key] = _($name);
2834 }
2835 }
2836 }
2837 return($ret);
2838 }
2841 /*! \brief Returns contents of the given POST variable and check magic quotes settings
2842 *
2843 * Depending on the magic quotes settings this returns a stripclashed'ed version of
2844 * a certain POST variable.
2845 *
2846 * \param string 'name' the POST var to return ($_POST[$name])
2847 * \return string
2848 * */
2849 function get_post($name)
2850 {
2851 if(!isset($_POST[$name])){
2852 trigger_error("Requested POST value (".$name.") does not exists, you should add a check to prevent this message.");
2853 return(FALSE);
2854 }
2856 if(get_magic_quotes_gpc()){
2857 return(stripcslashes(validate($_POST[$name])));
2858 }else{
2859 return(validate($_POST[$name]));
2860 }
2861 }
2864 /*! \brief Return class name in correct case */
2865 function get_correct_class_name($cls)
2866 {
2867 global $class_mapping;
2868 if(isset($class_mapping) && is_array($class_mapping)){
2869 foreach($class_mapping as $class => $file){
2870 if(preg_match("/^".$cls."$/i",$class)){
2871 return($class);
2872 }
2873 }
2874 }
2875 return(FALSE);
2876 }
2879 /*! \brief Change the password of a given DN
2880 *
2881 * Change the password of a given DN with the specified hash.
2882 *
2883 * \param string 'dn' the DN whose password shall be changed
2884 * \param string 'password' the password
2885 * \param int mode
2886 * \param string 'hash' which hash to use to encrypt it, default is empty
2887 * for cleartext storage.
2888 * \return boolean TRUE on success FALSE on error
2889 */
2890 function change_password ($dn, $password, $mode=0, $hash= "")
2891 {
2892 global $config;
2893 $newpass= "";
2895 /* Convert to lower. Methods are lowercase */
2896 $hash= strtolower($hash);
2898 // Get all available encryption Methods
2900 // NON STATIC CALL :)
2901 $methods = new passwordMethod(session::get('config'),$dn);
2902 $available = $methods->get_available_methods();
2904 // read current password entry for $dn, to detect the encryption Method
2905 $ldap = $config->get_ldap_link();
2906 $ldap->cat ($dn, array("shadowLastChange", "userPassword", "uid"));
2907 $attrs = $ldap->fetch ();
2909 /* Is ensure that clear passwords will stay clear */
2910 if($hash == "" && isset($attrs['userPassword'][0]) && !preg_match ("/^{([^}]+)}(.+)/", $attrs['userPassword'][0])){
2911 $hash = "clear";
2912 }
2914 // Detect the encryption Method
2915 if ( (isset($attrs['userPassword'][0]) && preg_match ("/^{([^}]+)}(.+)/", $attrs['userPassword'][0], $matches)) || $hash != ""){
2917 /* Check for supported algorithm */
2918 mt_srand((double) microtime()*1000000);
2920 /* Extract used hash */
2921 if ($hash == ""){
2922 $test = passwordMethod::get_method($attrs['userPassword'][0],$dn);
2923 } else {
2924 $test = new $available[$hash]($config,$dn);
2925 $test->set_hash($hash);
2926 }
2928 } else {
2929 // User MD5 by default
2930 $hash= "md5";
2931 $test = new $available['md5']($config, $dn);
2932 }
2934 if($test instanceOf passwordMethod){
2936 $deactivated = $test->is_locked($config,$dn);
2938 /* Feed password backends with information */
2939 $test->dn= $dn;
2940 $test->attrs= $attrs;
2941 $newpass= $test->generate_hash($password);
2943 // Update shadow timestamp?
2944 if (isset($attrs["shadowLastChange"][0])){
2945 $shadow= (int)(date("U") / 86400);
2946 } else {
2947 $shadow= 0;
2948 }
2950 // Write back modified entry
2951 $ldap->cd($dn);
2952 $attrs= array();
2954 // Not for groups
2955 if ($mode == 0){
2956 // Create SMB Password
2957 $attrs= generate_smb_nt_hash($password);
2959 if ($shadow != 0){
2960 $attrs['shadowLastChange']= $shadow;
2961 }
2962 }
2964 $attrs['userPassword']= array();
2965 $attrs['userPassword']= $newpass;
2967 $ldap->modify($attrs);
2969 /* Read ! if user was deactivated */
2970 if($deactivated){
2971 $test->lock_account($config,$dn);
2972 }
2974 new log("modify","users/passwordMethod",$dn,array_keys($attrs),$ldap->get_error());
2976 if (!$ldap->success()) {
2977 msg_dialog::display(_("LDAP error"), msgPool::ldaperror($ldap->get_error(), $dn, LDAP_MOD, ERROR_DIALOG));
2978 } else {
2980 /* Run backend method for change/create */
2981 if(!$test->set_password($password)){
2982 return(FALSE);
2983 }
2985 /* Find postmodify entries for this class */
2986 $command= $config->get_cfg_value("password","postmodify");
2988 if ($command != ""){
2989 /* Walk through attribute list */
2990 $command= preg_replace("/%userPassword/", $password, $command);
2991 $command= preg_replace("/%dn/", $dn, $command);
2993 if (check_command($command)){
2994 @DEBUG (DEBUG_SHELL, __LINE__, __FUNCTION__, __FILE__, $command, "Execute");
2995 exec($command);
2996 } else {
2997 $message= sprintf(_("Command %s specified as post modify action for plugin %s does not exist!"), bold($command), bold("password"));
2998 msg_dialog::display(_("Configuration error"), $message, ERROR_DIALOG);
2999 }
3000 }
3001 }
3002 return(TRUE);
3003 }
3004 }
3007 /*! \brief Generate samba hashes
3008 *
3009 * Given a certain password this constructs an array like
3010 * array['sambaLMPassword'] etc.
3011 *
3012 * \param string 'password'
3013 * \return array contains several keys for lmPassword, ntPassword, pwdLastSet, etc. depending
3014 * on the samba version
3015 */
3016 function generate_smb_nt_hash($password)
3017 {
3018 global $config;
3020 # Try to use gosa-si?
3021 if ($config->get_cfg_value("core","gosaSupportURI") != ""){
3022 $res= gosaSupportDaemon::send("gosa_gen_smb_hash", "GOSA", array("password" => $password), TRUE);
3023 if (isset($res['XML']['HASH'])){
3024 $hash= $res['XML']['HASH'];
3025 } else {
3026 $hash= "";
3027 }
3029 if ($hash == "") {
3030 msg_dialog::display(_("Configuration error"), _("Cannot generate SAMBA hash!"), ERROR_DIALOG);
3031 return ("");
3032 }
3033 } else {
3034 $tmp= $config->get_cfg_value("core",'sambaHashHook')." ".escapeshellarg($password);
3035 @DEBUG (DEBUG_LDAP, __LINE__, __FUNCTION__, __FILE__, $tmp, "Execute");
3037 exec($tmp, $ar);
3038 flush();
3039 reset($ar);
3040 $hash= current($ar);
3042 if ($hash == "") {
3043 msg_dialog::display(_("Configuration error"), sprintf(_("Generating SAMBA hash by running %s failed: check %s!"), bold($config->get_cfg_value("core",'sambaHashHook'), bold("sambaHashHook"))), ERROR_DIALOG);
3044 return ("");
3045 }
3046 }
3048 list($lm,$nt)= explode(":", trim($hash));
3050 $attrs['sambaLMPassword']= $lm;
3051 $attrs['sambaNTPassword']= $nt;
3052 $attrs['sambaPwdLastSet']= date('U');
3053 $attrs['sambaBadPasswordCount']= "0";
3054 $attrs['sambaBadPasswordTime']= "0";
3055 return($attrs);
3056 }
3059 /*! \brief Get the Change Sequence Number of a certain DN
3060 *
3061 * To verify if a given object has been changed outside of Gosa
3062 * in the meanwhile, this function can be used to get the entryCSN
3063 * from the LDAP directory. It uses the attribute as configured
3064 * in modificationDetectionAttribute
3065 *
3066 * \param string 'dn'
3067 * \return either the result or "" in any other case
3068 */
3069 function getEntryCSN($dn)
3070 {
3071 global $config;
3072 if(empty($dn) || !is_object($config)){
3073 return("");
3074 }
3076 /* Get attribute that we should use as serial number */
3077 $attr= $config->get_cfg_value("core","modificationDetectionAttribute");
3078 if($attr != ""){
3079 $ldap = $config->get_ldap_link();
3080 $ldap->cat($dn,array($attr));
3081 $csn = $ldap->fetch();
3082 if(isset($csn[$attr][0])){
3083 return($csn[$attr][0]);
3084 }
3085 }
3086 return("");
3087 }
3090 /*! \brief Add (a) given objectClass(es) to an attrs entry
3091 *
3092 * The function adds the specified objectClass(es) to the given
3093 * attrs entry.
3094 *
3095 * \param mixed 'classes' Either a single objectClass or several objectClasses
3096 * as an array
3097 * \param array 'attrs' The attrs array to be modified.
3098 *
3099 * */
3100 function add_objectClass($classes, &$attrs)
3101 {
3102 if (is_array($classes)){
3103 $list= $classes;
3104 } else {
3105 $list= array($classes);
3106 }
3108 foreach ($list as $class){
3109 $attrs['objectClass'][]= $class;
3110 }
3111 }
3114 /*! \brief Removes a given objectClass from the attrs entry
3115 *
3116 * Similar to add_objectClass, except that it removes the given
3117 * objectClasses. See it for the params.
3118 * */
3119 function remove_objectClass($classes, &$attrs)
3120 {
3121 if (isset($attrs['objectClass'])){
3122 /* Array? */
3123 if (is_array($classes)){
3124 $list= $classes;
3125 } else {
3126 $list= array($classes);
3127 }
3129 $tmp= array();
3130 foreach ($attrs['objectClass'] as $oc) {
3131 foreach ($list as $class){
3132 if (strtolower($oc) != strtolower($class)){
3133 $tmp[]= $oc;
3134 }
3135 }
3136 }
3137 $attrs['objectClass']= $tmp;
3138 }
3139 }
3142 /*! \brief Initialize a file download with given content, name and data type.
3143 * \param string data The content to send.
3144 * \param string name The name of the file.
3145 * \param string type The content identifier, default value is "application/octet-stream";
3146 */
3147 function send_binary_content($data,$name,$type = "application/octet-stream")
3148 {
3149 header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
3150 header("Last-Modified: ".gmdate("D, d M Y H:i:s")." GMT");
3151 header("Cache-Control: no-cache");
3152 header("Pragma: no-cache");
3153 header("Cache-Control: post-check=0, pre-check=0");
3154 header("Content-type: ".$type."");
3156 $HTTP_USER_AGENT = $_SERVER['HTTP_USER_AGENT'];
3158 /* Strip name if it is a complete path */
3159 if (preg_match ("/\//", $name)) {
3160 $name= basename($name);
3161 }
3163 /* force download dialog */
3164 if (preg_match('/MSIE 5.5/', $HTTP_USER_AGENT) || preg_match('/MSIE 6.0/', $HTTP_USER_AGENT)) {
3165 header('Content-Disposition: filename="'.$name.'"');
3166 } else {
3167 header('Content-Disposition: attachment; filename="'.$name.'"');
3168 }
3170 echo $data;
3171 exit();
3172 }
3175 function reverse_html_entities($str,$type = ENT_QUOTES , $charset = "UTF-8")
3176 {
3177 if(is_string($str)){
3178 return(htmlentities($str,$type,$charset));
3179 }elseif(is_array($str)){
3180 foreach($str as $name => $value){
3181 $str[$name] = reverse_html_entities($value,$type,$charset);
3182 }
3183 }
3184 return($str);
3185 }
3188 /*! \brief Encode special string characters so we can use the string in \
3189 HTML output, without breaking quotes.
3190 \param string The String we want to encode.
3191 \return string The encoded String
3192 */
3193 function xmlentities($str)
3194 {
3195 if(is_string($str)){
3197 static $asc2uni= array();
3198 if (!count($asc2uni)){
3199 for($i=128;$i<256;$i++){
3200 # $asc2uni[chr($i)] = "&#x".dechex($i).";";
3201 }
3202 }
3204 $str = str_replace("&", "&", $str);
3205 $str = str_replace("<", "<", $str);
3206 $str = str_replace(">", ">", $str);
3207 $str = str_replace("'", "'", $str);
3208 $str = str_replace("\"", """, $str);
3209 $str = str_replace("\r", "", $str);
3210 $str = strtr($str,$asc2uni);
3211 return $str;
3212 }elseif(is_array($str)){
3213 foreach($str as $name => $value){
3214 $str[$name] = xmlentities($value);
3215 }
3216 }
3217 return($str);
3218 }
3221 /*! \brief Updates all accessTo attributes from a given value to a new one.
3222 For example if a host is renamed.
3223 \param String $from The source accessTo name.
3224 \param String $to The destination accessTo name.
3225 */
3226 function update_accessTo($from,$to)
3227 {
3228 global $config;
3229 $ldap = $config->get_ldap_link();
3230 $ldap->cd($config->current['BASE']);
3231 $ldap->search("(&(objectClass=trustAccount)(accessTo=".$from."))",array("objectClass","accessTo"));
3232 while($attrs = $ldap->fetch()){
3233 $new_attrs = array("accessTo" => array());
3234 $dn = $attrs['dn'];
3235 for($i = 0 ; $i < $attrs['objectClass']['count']; $i++){
3236 $new_attrs['objectClass'][] = $attrs['objectClass'][$i];
3237 }
3238 for($i = 0 ; $i < $attrs['accessTo']['count']; $i++){
3239 if($attrs['accessTo'][$i] == $from){
3240 if(!empty($to)){
3241 $new_attrs['accessTo'][] = $to;
3242 }
3243 }else{
3244 $new_attrs['accessTo'][] = $attrs['accessTo'][$i];
3245 }
3246 }
3247 $ldap->cd($dn);
3248 $ldap->modify($new_attrs);
3249 if (!$ldap->success()){
3250 msg_dialog::display(_("LDAP error"), msgPool::ldaperror($ldap->get_error(), $dn, LDAP_MOD, "update_accessTo($from,$to)"));
3251 }
3252 new log("modify","update_accessTo($from,$to)",$dn,array_keys($new_attrs),$ldap->get_error());
3253 }
3254 }
3257 /*! \brief Returns a random char */
3258 function get_random_char () {
3259 $randno = rand (0, 63);
3260 if ($randno < 12) {
3261 return (chr ($randno + 46)); // Digits, '/' and '.'
3262 } else if ($randno < 38) {
3263 return (chr ($randno + 53)); // Uppercase
3264 } else {
3265 return (chr ($randno + 59)); // Lowercase
3266 }
3267 }
3270 function cred_encrypt($input, $password) {
3272 $size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_CBC);
3273 $iv = mcrypt_create_iv($size, MCRYPT_DEV_RANDOM);
3275 return bin2hex(mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $password, $input, MCRYPT_MODE_ECB, $iv));
3277 }
3280 function cred_decrypt($input,$password) {
3281 $size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_CBC);
3282 $iv = mcrypt_create_iv($size, MCRYPT_DEV_RANDOM);
3284 return mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $password, pack("H*", $input), MCRYPT_MODE_ECB, $iv);
3285 }
3288 function get_object_info()
3289 {
3290 return(session::get('objectinfo'));
3291 }
3294 function set_object_info($str = "")
3295 {
3296 session::set('objectinfo',$str);
3297 }
3300 function isIpInNet($ip, $net, $mask) {
3301 // Move to long ints
3302 $ip= ip2long($ip);
3303 $net= ip2long($net);
3304 $mask= ip2long($mask);
3306 // Mask given IP with mask. If it returns "net", we're in...
3307 $res= $ip & $mask;
3309 return ($res == $net);
3310 }
3313 function get_next_id($attrib, $dn)
3314 {
3315 global $config;
3317 switch ($config->get_cfg_value("core","idAllocationMethod")){
3318 case "pool":
3319 return get_next_id_pool($attrib);
3320 case "traditional":
3321 return get_next_id_traditional($attrib, $dn);
3322 }
3324 msg_dialog::display(_("Error"), _("Cannot allocate free ID:")." "._("unknown idAllocation method!"), ERROR_DIALOG);
3325 return null;
3326 }
3329 function get_next_id_pool($attrib) {
3330 global $config;
3332 /* Fill informational values */
3333 $min= $config->get_cfg_value("core","${attrib}PoolMin");
3334 $max= $config->get_cfg_value("core","${attrib}PoolMax");
3336 /* Sanity check */
3337 if ($min >= $max) {
3338 msg_dialog::display(_("Error"), _("Cannot allocate free ID:")." ".sprintf(_("%sPoolMin >= %sPoolMax!"), bold($attrib), bold($attrib)), ERROR_DIALOG);
3339 return null;
3340 }
3342 /* ID to skip */
3343 $ldap= $config->get_ldap_link();
3344 $id= null;
3346 /* Try to allocate the ID several times before failing */
3347 $tries= 3;
3348 while ($tries--) {
3350 /* Look for ID map entry */
3351 $ldap->cd ($config->current['BASE']);
3352 $ldap->search ("(&(objectClass=sambaUnixIdPool)($attrib=*))", array("$attrib"));
3354 /* If it does not exist, create one with these defaults */
3355 if ($ldap->count() == 0) {
3356 /* Fill informational values */
3357 $minUserId= $config->get_cfg_value("core","uidNumberPoolMin");
3358 $minGroupId= $config->get_cfg_value("core","gidNumberPoolMin");
3360 /* Add as default */
3361 $attrs= array("objectClass" => array("organizationalUnit", "sambaUnixIdPool"));
3362 $attrs["ou"]= "idmap";
3363 $attrs["uidNumber"]= $minUserId;
3364 $attrs["gidNumber"]= $minGroupId;
3365 $ldap->cd("ou=idmap,".$config->current['BASE']);
3366 $ldap->add($attrs);
3367 if ($ldap->error != "Success") {
3368 msg_dialog::display(_("Error"), _("Cannot create sambaUnixIdPool entry!"), ERROR_DIALOG);
3369 return null;
3370 }
3371 $tries++;
3372 continue;
3373 }
3374 /* Bail out if it's not unique */
3375 if ($ldap->count() != 1) {
3376 msg_dialog::display(_("Error"), _("Cannot allocate free ID:")." "._("sambaUnixIdPool is not unique!"), ERROR_DIALOG);
3377 return null;
3378 }
3380 /* Store old attrib and generate new */
3381 $attrs= $ldap->fetch();
3382 $dn= $ldap->getDN();
3383 $oldAttr= $attrs[$attrib][0];
3384 $newAttr= $oldAttr + 1;
3386 /* Sanity check */
3387 if ($newAttr >= $max) {
3388 msg_dialog::display(_("Error"), _("Cannot allocate free ID:")." "._("no ID available!"), ERROR_DIALOG);
3389 return null;
3390 }
3391 if ($newAttr < $min) {
3392 msg_dialog::display(_("Error"), _("Cannot allocate free ID:")." "._("no ID available!"), ERROR_DIALOG);
3393 return null;
3394 }
3396 #FIXME: PHP is not able to do a modification of "del: .../add: ...", so this
3397 # is completely unsafe in the moment.
3398 #/* Remove old attr, add new attr */
3399 #$attrs= array($attrib => $oldAttr);
3400 #$ldap->rm($attrs, $dn);
3401 #if ($ldap->error != "Success") {
3402 # continue;
3403 #}
3404 $ldap->cd($dn);
3405 $ldap->modify(array($attrib => $newAttr));
3406 if ($ldap->error != "Success") {
3407 msg_dialog::display(_("Error"), _("Cannot allocate free ID:")." ".$ldap->get_error(), ERROR_DIALOG);
3408 return null;
3409 } else {
3410 return $oldAttr;
3411 }
3412 }
3414 /* Bail out if we had problems getting the next id */
3415 if (!$tries) {
3416 msg_dialog::display(_("Error"), _("Cannot allocate free ID:")." "._("maximum number of tries exceeded!"), ERROR_DIALOG);
3417 }
3419 return $id;
3420 }
3423 function get_next_id_traditional($attrib, $dn)
3424 {
3425 global $config;
3427 $ids= array();
3428 $ldap= $config->get_ldap_link();
3430 $ldap->cd ($config->current['BASE']);
3431 if (preg_match('/gidNumber/i', $attrib)){
3432 $oc= "posixGroup";
3433 } else {
3434 $oc= "posixAccount";
3435 }
3436 $ldap->search ("(&(objectClass=$oc)($attrib=*))", array("$attrib"));
3438 /* Get list of ids */
3439 while ($attrs= $ldap->fetch()){
3440 $ids[]= (int)$attrs["$attrib"][0];
3441 }
3443 /* Add the nobody id */
3444 $ids[]= 65534;
3446 /* get the ranges */
3447 $tmp = array('0'=> 1000);
3448 if (preg_match('/posixAccount/', $oc) && $config->get_cfg_value("core","uidNumberBase") != ""){
3449 $tmp= explode('-',$config->get_cfg_value("core","uidNumberBase"));
3450 } elseif($config->get_cfg_value("core","gidNumberBase") != ""){
3451 $tmp= explode('-',$config->get_cfg_value("core","gidNumberBase"));
3452 }
3454 /* Set hwm to max if not set - for backward compatibility */
3455 $lwm= $tmp[0];
3456 if (isset($tmp[1])){
3457 $hwm= $tmp[1];
3458 } else {
3459 $hwm= pow(2,32);
3460 }
3461 /* Find out next free id near to UID_BASE */
3462 if ($config->get_cfg_value("core","baseIdHook") == ""){
3463 $base= $lwm;
3464 } else {
3465 /* Call base hook */
3466 $base= get_base_from_hook($dn, $attrib);
3467 }
3468 for ($id= $base; $id++; $id < pow(2,32)){
3469 if (!in_array($id, $ids)){
3470 return ($id);
3471 }
3472 }
3474 /* Should not happen */
3475 if ($id == $hwm){
3476 msg_dialog::display(_("Error"), _("Cannot allocate free ID!"), ERROR_DIALOG);
3477 exit;
3478 }
3479 }
3482 /* Mark the occurance of a string with a span */
3483 function mark($needle, $haystack, $ignorecase= true)
3484 {
3485 $result= "";
3487 while (preg_match('/^(.*)('.preg_quote($needle).')(.*)$/i', $haystack, $matches)) {
3488 $result.= $matches[1]."<span class='mark'>".$matches[2]."</span>";
3489 $haystack= $matches[3];
3490 }
3492 return $result.$haystack;
3493 }
3496 /* Return an image description using the path */
3497 function image($path, $action= "", $title= "", $align= "middle")
3498 {
3499 global $config;
3500 global $BASE_DIR;
3501 $label= null;
3503 // Bail out, if there's no style file
3504 if(!session::global_is_set("img-styles")){
3506 // Get theme
3507 if (isset ($config)){
3508 $theme= $config->get_cfg_value("core","theme");
3509 } else {
3511 // Fall back to default theme
3512 $theme= "default";
3513 }
3515 if (!file_exists("$BASE_DIR/ihtml/themes/$theme/img.styles")){
3516 die ("No img.style for this theme found!");
3517 }
3519 session::global_set('img-styles', unserialize(file_get_contents("$BASE_DIR/ihtml/themes/$theme/img.styles")));
3520 }
3521 $styles= session::global_get('img-styles');
3523 /* Extract labels from path */
3524 if (preg_match("/\.png\[(.*)\]$/", $path, $matches)) {
3525 $label= $matches[1];
3526 }
3528 $lbl= "";
3529 if ($label) {
3530 if (isset($styles["images/label-".$label.".png"])) {
3531 $lbl= "<div style='".$styles["images/label-".$label.".png"]."'></div>";
3532 } else {
3533 die("Invalid label specified: $label\n");
3534 }
3536 $path= preg_replace("/\[.*\]$/", "", $path);
3537 }
3539 // Non middle layout?
3540 if ($align == "middle") {
3541 $align= "";
3542 } else {
3543 $align= ";vertical-align:$align";
3544 }
3546 // Clickable image or not?
3547 if ($title != "") {
3548 $title= "title='$title'";
3549 }
3550 if ($action == "") {
3551 return "<div class='img' $title style='".$styles[$path]."$align'>$lbl</div>";
3552 } else {
3553 return "<input type='submit' class='img' id='$action' value='' name='$action' $title style='".$styles[$path]."$align'>";
3554 }
3555 }
3557 /*! \brief Encodes a complex string to be useable in HTML posts.
3558 */
3559 function postEncode($str)
3560 {
3561 return(preg_replace("/=/","_", base64_encode($str)));
3562 }
3564 /*! \brief Decodes a string encoded by postEncode
3565 */
3566 function postDecode($str)
3567 {
3568 return(base64_decode(preg_replace("/_/","=", $str)));
3569 }
3572 /*! \brief Generate styled output
3573 */
3574 function bold($str)
3575 {
3576 return "<span class='highlight'>$str</span>";
3577 }
3580 // vim:tabstop=2:expandtab:shiftwidth=2:filetype=php:syntax:ruler:
3581 ?>