xref: /dokuwiki/lib/plugins/acl/admin.php (revision 90da0b5500c9c2ab94708308a42b660cce86902a) 
1<?php
2/**
3 * ACL administration functions
4 *
5 * @license    GPL 2 (http://www.gnu.org/licenses/gpl.html)
6 * @author     Andreas Gohr <andi@splitbrain.org>
7 * @author     Anika Henke <anika@selfthinker.org> (concepts)
8 * @author     Frank Schubert <frank@schokilade.de> (old version)
9 */
10// must be run within Dokuwiki
11if(!defined('DOKU_INC')) die();
12
13if(!defined('DOKU_PLUGIN')) define('DOKU_PLUGIN',DOKU_INC.'lib/plugins/');
14require_once(DOKU_PLUGIN.'admin.php');
15
16/**
17 * All DokuWiki plugins to extend the admin function
18 * need to inherit from this class
19 */
20class admin_plugin_acl extends DokuWiki_Admin_Plugin {
21    var $acl = null;
22    var $ns  = null;
23    var $who = '';
24    var $usersgroups = array();
25    var $specials = array();
26
27    /**
28     * return some info
29     */
30    function getInfo(){
31        return array(
32            'author' => 'Andreas Gohr',
33            'email'  => 'andi@splitbrain.org',
34            'date'   => '2009-08-07',
35            'name'   => 'ACL Manager',
36            'desc'   => 'Manage Page Access Control Lists',
37            'url'    => 'http://dokuwiki.org/plugin:acl',
38        );
39    }
40
41    /**
42     * return prompt for admin menu
43     */
44    function getMenuText($language) {
45        return $this->getLang('admin_acl');
46    }
47
48    /**
49     * return sort order for position in admin menu
50     */
51    function getMenuSort() {
52        return 1;
53    }
54
55    /**
56     * handle user request
57     *
58     * Initializes internal vars and handles modifications
59     *
60     * @author Andreas Gohr <andi@splitbrain.org>
61     */
62    function handle() {
63        global $AUTH_ACL;
64        global $ID;
65        global $auth;
66
67        // fresh 1:1 copy without replacements
68        $AUTH_ACL = file(DOKU_CONF.'acl.auth.php');
69
70        // namespace given?
71        if($_REQUEST['ns'] == '*'){
72            $this->ns = '*';
73        }else{
74            $this->ns = cleanID($_REQUEST['ns']);
75        }
76
77        // user or group choosen?
78        $who = trim($_REQUEST['acl_w']);
79        if($_REQUEST['acl_t'] == '__g__' && $who){
80            $this->who = '@'.ltrim($auth->cleanGroup($who),'@');
81        }elseif($_REQUEST['acl_t'] == '__u__' && $who){
82            $this->who = ltrim($auth->cleanUser($who),'@');
83        }elseif($_REQUEST['acl_t'] &&
84                $_REQUEST['acl_t'] != '__u__' &&
85                $_REQUEST['acl_t'] != '__g__'){
86            $this->who = $_REQUEST['acl_t'];
87        }elseif($who){
88            $this->who = $who;
89        }
90
91        // handle modifications
92        if(isset($_REQUEST['cmd'])){
93            // scope for modifications
94            if($this->ns){
95                if($this->ns == '*'){
96                    $scope = '*';
97                }else{
98                    $scope = $this->ns.':*';
99                }
100            }else{
101                $scope = $ID;
102            }
103
104            if(isset($_REQUEST['cmd']['save']) && $scope && $this->who && isset($_REQUEST['acl'])){
105                // handle additions or single modifications
106                $this->_acl_del($scope, $this->who);
107                $this->_acl_add($scope, $this->who, (int) $_REQUEST['acl']);
108            }elseif(isset($_REQUEST['cmd']['del']) && $scope && $this->who){
109                // handle single deletions
110                $this->_acl_del($scope, $this->who);
111            }elseif(isset($_REQUEST['cmd']['update'])){
112                // handle update of the whole file
113                foreach((array) $_REQUEST['del'] as $where => $names){
114                    // remove all rules marked for deletion
115                    foreach($names as $who)
116                        unset($_REQUEST['acl'][$where][$who]);
117                }
118                // prepare lines
119                $lines = array();
120                // keep header
121                foreach($AUTH_ACL as $line){
122                    if($line{0} == '#'){
123                        $lines[] = $line;
124                    }else{
125                        break;
126                    }
127                }
128                // re-add all rules
129                foreach((array) $_REQUEST['acl'] as $where => $opt){
130                    foreach($opt as $who => $perm){
131                        $who = auth_nameencode($who,true);
132                        $lines[] = "$where\t$who\t$perm\n";
133                    }
134                }
135                // save it
136                io_saveFile(DOKU_CONF.'acl.auth.php', join('',$lines));
137            }
138
139            // reload ACL config
140            $AUTH_ACL = file(DOKU_CONF.'acl.auth.php');
141        }
142
143        // initialize ACL array
144        $this->_init_acl_config();
145    }
146
147    /**
148     * ACL Output function
149     *
150     * print a table with all significant permissions for the
151     * current id
152     *
153     * @author  Frank Schubert <frank@schokilade.de>
154     * @author  Andreas Gohr <andi@splitbrain.org>
155     */
156    function html() {
157        global $ID;
158
159        echo '<div id="acl_manager">'.NL;
160        echo '<h1>'.$this->getLang('admin_acl').'</h1>'.NL;
161        echo '<div class="level1">'.NL;
162
163        echo '<div id="acl__tree">'.NL;
164        $this->_html_explorer($_REQUEST['ns']);
165        echo '</div>'.NL;
166
167        echo '<div id="acl__detail">'.NL;
168        $this->_html_detail();
169        echo '</div>'.NL;
170        echo '</div>'.NL;
171
172        echo '<div class="clearer"></div>';
173        echo '<h2>'.$this->getLang('current').'</h2>'.NL;
174        echo '<div class="level2">'.NL;
175        $this->_html_table();
176        echo '</div>'.NL;
177
178        echo '<div class="footnotes"><div class="fn">'.NL;
179        echo '<sup><a id="fn__1" class="fn_bot" name="fn__1" href="#fnt__1">1)</a></sup>'.NL;
180        echo $this->getLang('p_include');
181        echo '</div></div>';
182
183        echo '</div>'.NL;
184    }
185
186    /**
187     * returns array with set options for building links
188     *
189     * @author Andreas Gohr <andi@splitbrain.org>
190     */
191    function _get_opts($addopts=null){
192        global $ID;
193        $opts = array(
194                    'do'=>'admin',
195                    'page'=>'acl',
196                );
197        if($this->ns) $opts['ns'] = $this->ns;
198        if($this->who) $opts['acl_w'] = $this->who;
199
200        if(is_null($addopts)) return $opts;
201        return array_merge($opts, $addopts);
202    }
203
204    /**
205     * Display a tree menu to select a page or namespace
206     *
207     * @author Andreas Gohr <andi@splitbrain.org>
208     */
209    function _html_explorer(){
210        require_once(DOKU_INC.'inc/search.php');
211        global $conf;
212        global $ID;
213        global $lang;
214
215        $dir = $conf['datadir'];
216        $ns  = $this->ns;
217        if(empty($ns)){
218            $ns = dirname(str_replace(':','/',$ID));
219            if($ns == '.') $ns ='';
220        }elseif($ns == '*'){
221            $ns ='';
222        }
223        $ns  = utf8_encodeFN(str_replace(':','/',$ns));
224
225        $data = $this->_get_tree($ns);
226
227        // wrap a list with the root level around the other namespaces
228        $item = array( 'level' => 0, 'id' => '*', 'type' => 'd',
229                   'open' =>'true', 'label' => '['.$lang['mediaroot'].']');
230
231        echo '<ul class="acltree">';
232        echo $this->_html_li_acl($item);
233        echo '<div class="li">';
234        echo $this->_html_list_acl($item);
235        echo '</div>';
236        echo html_buildlist($data,'acl',
237                            array($this,'_html_list_acl'),
238                            array($this,'_html_li_acl'));
239        echo '</li>';
240        echo '</ul>';
241
242    }
243
244    /**
245     * get a combined list of media and page files
246     *
247     * @param string $folder an already converted filesystem folder of the current namespace
248     * @param string $limit  limit the search to this folder
249     */
250    function _get_tree($folder,$limit=''){
251        global $conf;
252
253        // read tree structure from pages and media
254        $data = array();
255        search($data,$conf['datadir'],'search_index',array('ns' => $folder),$limit);
256        $media = array();
257        search($media,$conf['mediadir'],'search_index',array('ns' => $folder, 'nofiles' => true),$limit);
258        $data = array_merge($data,$media);
259        unset($media);
260
261        // combine by sorting and removing duplicates
262        usort($data,array($this,'_tree_sort'));
263        $count = count($data);
264        if($count>0) for($i=1; $i<$count; $i++){
265            if($data[$i]['type'] == 'f') break; // namespaces come first, we're done
266            if($data[$i-1]['id'] == $data[$i]['id']) unset($data[$i]);
267        }
268        return $data;
269    }
270
271    /**
272     * usort callback
273     *
274     * Sorts the combined trees of media and page files
275     */
276    function _tree_sort($a,$b){
277        if($a['type'] == 'd' && $b['type'] == 'f'){
278            return -1;
279        }elseif($a['type'] == 'f' && $b['type'] == 'd'){
280            return 1;
281        }else{
282            return strcmp($a['id'],$b['id']);
283        }
284    }
285
286    /**
287     * Display the current ACL for selected where/who combination with
288     * selectors and modification form
289     *
290     * @author Andreas Gohr <andi@splitbrain.org>
291     */
292    function _html_detail(){
293        global $conf;
294        global $ID;
295
296        echo '<form action="'.wl().'" method="post" accept-charset="utf-8"><div class="no">'.NL;
297
298        echo '<div id="acl__user">';
299        echo $this->getLang('acl_perms').' ';
300        $inl =  $this->_html_select();
301        echo '<input type="text" name="acl_w" class="edit" value="'.(($inl)?'':hsc(ltrim($this->who,'@'))).'" />'.NL;
302        echo '<input type="submit" value="'.$this->getLang('btn_select').'" class="button" />'.NL;
303        echo '</div>'.NL;
304
305        echo '<div id="acl__info">';
306        $this->_html_info();
307        echo '</div>';
308
309        echo '<input type="hidden" name="ns" value="'.hsc($this->ns).'" />'.NL;
310        echo '<input type="hidden" name="id" value="'.hsc($ID).'" />'.NL;
311        echo '<input type="hidden" name="do" value="admin" />'.NL;
312        echo '<input type="hidden" name="page" value="acl" />'.NL;
313        echo '</div></form>'.NL;
314    }
315
316    /**
317     * Print infos and editor
318     */
319    function _html_info(){
320        global $ID;
321
322        if($this->who){
323            $current = $this->_get_exact_perm();
324
325            // explain current permissions
326            $this->_html_explain($current);
327            // load editor
328            $this->_html_acleditor($current);
329        }else{
330            echo '<p>';
331            if($this->ns){
332                printf($this->getLang('p_choose_ns'),hsc($this->ns));
333            }else{
334                printf($this->getLang('p_choose_id'),hsc($ID));
335            }
336            echo '</p>';
337
338            echo $this->locale_xhtml('help');
339        }
340    }
341
342    /**
343     * Display the ACL editor
344     *
345     * @author Andreas Gohr <andi@splitbrain.org>
346     */
347    function _html_acleditor($current){
348        global $lang;
349
350        echo '<fieldset>';
351        if(is_null($current)){
352            echo '<legend>'.$this->getLang('acl_new').'</legend>';
353        }else{
354            echo '<legend>'.$this->getLang('acl_mod').'</legend>';
355        }
356
357
358        echo $this->_html_checkboxes($current,empty($this->ns),'acl');
359
360        if(is_null($current)){
361            echo '<input type="submit" name="cmd[save]" class="button" value="'.$lang['btn_save'].'" />'.NL;
362        }else{
363            echo '<input type="submit" name="cmd[save]" class="button" value="'.$lang['btn_update'].'" />'.NL;
364            echo '<input type="submit" name="cmd[del]" class="button" value="'.$lang['btn_delete'].'" />'.NL;
365        }
366
367        echo '</fieldset>';
368    }
369
370    /**
371     * Explain the currently set permissions in plain english/$lang
372     *
373     * @author Andreas Gohr <andi@splitbrain.org>
374     */
375    function _html_explain($current){
376        global $ID;
377        global $auth;
378
379        $who = $this->who;
380        $ns  = $this->ns;
381
382        // prepare where to check
383        if($ns){
384            if($ns == '*'){
385                $check='*';
386            }else{
387                $check=$ns.':*';
388            }
389        }else{
390            $check = $ID;
391        }
392
393        // prepare who to check
394        if($who{0} == '@'){
395            $user   = '';
396            $groups = array(ltrim($who,'@'));
397        }else{
398            $user = auth_nameencode($who);
399            $info = $auth->getUserData($user);
400            if($info === false){
401                $groups = array();
402            }else{
403                $groups = $info['grps'];
404            }
405        }
406
407        // check the permissions
408        $perm = auth_aclcheck($check,$user,$groups);
409
410        // build array of named permissions
411        $names = array();
412        if($perm){
413            if($ns){
414                if($perm >= AUTH_DELETE) $names[] = $this->getLang('acl_perm16');
415                if($perm >= AUTH_UPLOAD) $names[] = $this->getLang('acl_perm8');
416                if($perm >= AUTH_CREATE) $names[] = $this->getLang('acl_perm4');
417            }
418            if($perm >= AUTH_EDIT) $names[] = $this->getLang('acl_perm2');
419            if($perm >= AUTH_READ) $names[] = $this->getLang('acl_perm1');
420            $names = array_reverse($names);
421        }else{
422            $names[] = $this->getLang('acl_perm0');
423        }
424
425        // print permission explanation
426        echo '<p>';
427        if($user){
428            if($ns){
429                printf($this->getLang('p_user_ns'),hsc($who),hsc($ns),join(', ',$names));
430            }else{
431                printf($this->getLang('p_user_id'),hsc($who),hsc($ID),join(', ',$names));
432            }
433        }else{
434            if($ns){
435                printf($this->getLang('p_group_ns'),hsc(ltrim($who,'@')),hsc($ns),join(', ',$names));
436            }else{
437                printf($this->getLang('p_group_id'),hsc(ltrim($who,'@')),hsc($ID),join(', ',$names));
438            }
439        }
440        echo '</p>';
441
442        // add note if admin
443        if($perm == AUTH_ADMIN){
444            echo '<p>'.$this->getLang('p_isadmin').'</p>';
445        }elseif(is_null($current)){
446            echo '<p>'.$this->getLang('p_inherited').'</p>';
447        }
448    }
449
450
451    /**
452     * Item formatter for the tree view
453     *
454     * User function for html_buildlist()
455     *
456     * @author Andreas Gohr <andi@splitbrain.org>
457     */
458    function _html_list_acl($item){
459        global $ID;
460        $ret = '';
461        // what to display
462        if($item['label']){
463            $base = $item['label'];
464        }else{
465            $base = ':'.$item['id'];
466            $base = substr($base,strrpos($base,':')+1);
467        }
468
469        // highlight?
470        if( ($item['type']=='d' && $item['id'] == $this->ns) ||
471            ($item['type']!='d' && $item['id'] == $ID)) $cl = ' cur';
472
473        // namespace or page?
474        if($item['type']=='d'){
475            if($item['open']){
476                $img   = DOKU_BASE.'lib/images/minus.gif';
477                $alt   = '&minus;';
478            }else{
479                $img   = DOKU_BASE.'lib/images/plus.gif';
480                $alt   = '+';
481            }
482            $ret .= '<img src="'.$img.'" alt="'.$alt.'" />';
483            $ret .= '<a href="'.wl('',$this->_get_opts(array('ns'=>$item['id']))).'" class="idx_dir'.$cl.'">';
484            $ret .= $base;
485            $ret .= '</a>';
486        }else{
487            $ret .= '<a href="'.wl('',$this->_get_opts(array('id'=>$item['id'],'ns'=>''))).'" class="wikilink1'.$cl.'">';
488            $ret .= noNS($item['id']);
489            $ret .= '</a>';
490        }
491        return $ret;
492    }
493
494
495    function _html_li_acl($item){
496            return '<li class="level'.$item['level'].'">';
497    }
498
499
500    /**
501     * Get current ACL settings as multidim array
502     *
503     * @author Andreas Gohr <andi@splitbrain.org>
504     */
505    function _init_acl_config(){
506        global $AUTH_ACL;
507        global $conf;
508        $acl_config=array();
509        $usersgroups = array();
510
511        // get special users and groups
512        $this->specials[] = '@ALL';
513        $this->specials[] = '@'.$conf['defaultgroup'];
514        if($conf['manager'] != '!!not set!!'){
515            $this->specials = array_merge($this->specials,
516                                          array_map('trim',
517                                                    explode(',',$conf['manager'])));
518        }
519        $this->specials = array_filter($this->specials);
520        $this->specials = array_unique($this->specials);
521        sort($this->specials);
522
523        foreach($AUTH_ACL as $line){
524            $line = trim(preg_replace('/#.*$/','',$line)); //ignore comments
525            if(!$line) continue;
526
527            $acl = preg_split('/\s+/',$line);
528            //0 is pagename, 1 is user, 2 is acl
529
530            $acl[1] = rawurldecode($acl[1]);
531            $acl_config[$acl[0]][$acl[1]] = $acl[2];
532
533            // store non-special users and groups for later selection dialog
534            $ug = $acl[1];
535            if(in_array($ug,$this->specials)) continue;
536            $usersgroups[] = $ug;
537        }
538
539        $usersgroups = array_unique($usersgroups);
540        sort($usersgroups);
541        ksort($acl_config);
542
543        $this->acl = $acl_config;
544        $this->usersgroups = $usersgroups;
545    }
546
547    /**
548     * Display all currently set permissions in a table
549     *
550     * @author Andreas Gohr <andi@splitbrain.org>
551     */
552    function _html_table(){
553        global $lang;
554        global $ID;
555
556        echo '<form action="'.wl().'" method="post" accept-charset="utf-8"><div class="no">'.NL;
557        if($this->ns){
558            echo '<input type="hidden" name="ns" value="'.hsc($this->ns).'" />'.NL;
559        }else{
560            echo '<input type="hidden" name="id" value="'.hsc($ID).'" />'.NL;
561        }
562        echo '<input type="hidden" name="acl_w" value="'.hsc($this->who).'" />'.NL;
563        echo '<input type="hidden" name="do" value="admin" />'.NL;
564        echo '<input type="hidden" name="page" value="acl" />'.NL;
565        echo '<table class="inline">';
566        echo '<tr>';
567        echo '<th>'.$this->getLang('where').'</th>';
568        echo '<th>'.$this->getLang('who').'</th>';
569        echo '<th>'.$this->getLang('perm').'<sup><a id="fnt__1" class="fn_top" name="fnt__1" href="#fn__1">1)</a></sup></th>';
570        echo '<th>'.$lang['btn_delete'].'</th>';
571        echo '</tr>';
572        foreach($this->acl as $where => $set){
573            foreach($set as $who => $perm){
574                echo '<tr>';
575                echo '<td>';
576                if(substr($where,-1) == '*'){
577                    echo '<span class="aclns">'.hsc($where).'</span>';
578                    $ispage = false;
579                }else{
580                    echo '<span class="aclpage">'.hsc($where).'</span>';
581                    $ispage = true;
582                }
583                echo '</td>';
584
585                echo '<td>';
586                if($who{0} == '@'){
587                    echo '<span class="aclgroup">'.hsc($who).'</span>';
588                }else{
589                    echo '<span class="acluser">'.hsc($who).'</span>';
590                }
591                echo '</td>';
592
593                echo '<td>';
594                echo $this->_html_checkboxes($perm,$ispage,'acl['.$where.']['.$who.']');
595                echo '</td>';
596
597                echo '<td align="center">';
598                echo '<input type="checkbox" name="del['.hsc($where).'][]" value="'.hsc($who).'" />';
599                echo '</td>';
600                echo '</tr>';
601            }
602        }
603
604        echo '<tr>';
605        echo '<th align="right" colspan="4">';
606        echo '<input type="submit" value="'.$lang['btn_update'].'" name="cmd[update]" class="button" />';
607        echo '</th>';
608        echo '</tr>';
609        echo '</table>';
610        echo '</div></form>'.NL;
611    }
612
613
614    /**
615     * Returns the permission which were set for exactly the given user/group
616     * and page/namespace. Returns null if no exact match is available
617     *
618     * @author Andreas Gohr <andi@splitbrain.org>
619     */
620    function _get_exact_perm(){
621        global $ID;
622        if($this->ns){
623            if($this->ns == '*'){
624                $check = '*';
625            }else{
626                $check = $this->ns.':*';
627            }
628        }else{
629            $check = $ID;
630        }
631
632        if(isset($this->acl[$check][$this->who])){
633            return $this->acl[$check][$this->who];
634        }else{
635            return null;
636        }
637    }
638
639    /**
640     * adds new acl-entry to conf/acl.auth.php
641     *
642     * @author  Frank Schubert <frank@schokilade.de>
643     */
644    function _acl_add($acl_scope, $acl_user, $acl_level){
645        $acl_config = file_get_contents(DOKU_CONF.'acl.auth.php');
646        $acl_user = auth_nameencode($acl_user,true);
647
648        // max level for pagenames is edit
649        if(strpos($acl_scope,'*') === false) {
650            if($acl_level > AUTH_EDIT) $acl_level = AUTH_EDIT;
651        }
652
653
654        $new_acl = "$acl_scope\t$acl_user\t$acl_level\n";
655
656        $new_config = $acl_config.$new_acl;
657
658        return io_saveFile(DOKU_CONF.'acl.auth.php', $new_config);
659    }
660
661    /**
662     * remove acl-entry from conf/acl.auth.php
663     *
664     * @author  Frank Schubert <frank@schokilade.de>
665     */
666    function _acl_del($acl_scope, $acl_user){
667        $acl_config = file(DOKU_CONF.'acl.auth.php');
668        $acl_user = auth_nameencode($acl_user,true);
669
670        $acl_pattern = '^'.preg_quote($acl_scope,'/').'\s+'.$acl_user.'\s+[0-8].*$';
671
672        // save all non!-matching
673        $new_config = preg_grep("/$acl_pattern/", $acl_config, PREG_GREP_INVERT);
674
675        return io_saveFile(DOKU_CONF.'acl.auth.php', join('',$new_config));
676    }
677
678    /**
679     * print the permission radio boxes
680     *
681     * @author  Frank Schubert <frank@schokilade.de>
682     * @author  Andreas Gohr <andi@splitbrain.org>
683     */
684    function _html_checkboxes($setperm,$ispage,$name){
685        global $lang;
686
687        static $label = 0; //number labels
688        $ret = '';
689
690        if($ispage && $setperm > AUTH_EDIT) $perm = AUTH_EDIT;
691
692        foreach(array(AUTH_NONE,AUTH_READ,AUTH_EDIT,AUTH_CREATE,AUTH_UPLOAD,AUTH_DELETE) as $perm){
693            $label += 1;
694
695            //general checkbox attributes
696            $atts = array( 'type'  => 'radio',
697                           'id'    => 'pbox'.$label,
698                           'name'  => $name,
699                           'value' => $perm );
700            //dynamic attributes
701            if(!is_null($setperm) && $setperm == $perm) $atts['checked']  = 'checked';
702            if($ispage && $perm > AUTH_EDIT){
703                $atts['disabled'] = 'disabled';
704                $class = ' class="disabled"';
705            }else{
706                $class = '';
707            }
708
709            //build code
710            $ret .= '<label for="pbox'.$label.'" title="'.$this->getLang('acl_perm'.$perm).'"'.$class.'>';
711            $ret .= '<input '.html_attbuild($atts).' />&nbsp;';
712            $ret .= $this->getLang('acl_perm'.$perm);
713            $ret .= '</label>'.NL;
714        }
715        return $ret;
716    }
717
718    /**
719     * Print a user/group selector (reusing already used users and groups)
720     *
721     * @author  Andreas Gohr <andi@splitbrain.org>
722     */
723    function _html_select(){
724        global $conf;
725        $inlist = false;
726
727        if($this->who &&
728           !in_array($this->who,$this->usersgroups) &&
729           !in_array($this->who,$this->specials)){
730
731            if($this->who{0} == '@'){
732                $gsel = ' selected="selected"';
733            }else{
734                $usel   = ' selected="selected"';
735            }
736        }else{
737            $usel = '';
738            $gsel = '';
739            $inlist = true;
740        }
741
742
743        echo '<select name="acl_t" class="edit">'.NL;
744        echo '  <option value="__g__" class="aclgroup"'.$gsel.'>'.$this->getLang('acl_group').':</option>'.NL;
745        echo '  <option value="__u__"  class="acluser"'.$usel.'>'.$this->getLang('acl_user').':</option>'.NL;
746        echo '  <optgroup label="&nbsp;">'.NL;
747        foreach($this->specials as $ug){
748            if($ug == $this->who){
749                $sel    = ' selected="selected"';
750                $inlist = true;
751            }else{
752                $sel = '';
753            }
754
755            if($ug{0} == '@'){
756                    echo '  <option value="'.hsc($ug).'" class="aclgroup"'.$sel.'>'.hsc($ug).'</option>'.NL;
757            }else{
758                    echo '  <option value="'.hsc($ug).'" class="acluser"'.$sel.'>'.hsc($ug).'</option>'.NL;
759            }
760        }
761        echo '  </optgroup>'.NL;
762        echo '  <optgroup label="&nbsp;">'.NL;
763        foreach($this->usersgroups as $ug){
764            if($ug == $this->who){
765                $sel    = ' selected="selected"';
766                $inlist = true;
767            }else{
768                $sel = '';
769            }
770
771            if($ug{0} == '@'){
772                    echo '  <option value="'.hsc($ug).'" class="aclgroup"'.$sel.'>'.hsc($ug).'</option>'.NL;
773            }else{
774                    echo '  <option value="'.hsc($ug).'" class="acluser"'.$sel.'>'.hsc($ug).'</option>'.NL;
775            }
776        }
777        echo '  </optgroup>'.NL;
778        echo '</select>'.NL;
779        return $inlist;
780    }
781}
782