xref: /dokuwiki/lib/plugins/usermanager/admin.php (revision 5c967d3d04622c1420313f1a514da5cda99827f3) 
1<?php
2/*
3 *  User Manager
4 *
5 *  Dokuwiki Admin Plugin
6 *
7 *  This version of the user manager has been modified to only work with
8 *  objectified version of auth system
9 *
10 *  @author  neolao <neolao@neolao.com>
11 *  @author  Chris Smith <chris@jalakai.co.uk>
12 */
13// must be run within Dokuwiki
14if(!defined('DOKU_INC')) die();
15
16if(!defined('DOKU_PLUGIN_IMAGES')) define('DOKU_PLUGIN_IMAGES',DOKU_BASE.'lib/plugins/usermanager/images/');
17
18/**
19 * All DokuWiki plugins to extend the admin function
20 * need to inherit from this class
21 */
22class admin_plugin_usermanager extends DokuWiki_Admin_Plugin {
23
24    var $_auth = null;        // auth object
25    var $_user_total = 0;     // number of registered users
26    var $_filter = array();   // user selection filter(s)
27    var $_start = 0;          // index of first user to be displayed
28    var $_last = 0;           // index of the last user to be displayed
29    var $_pagesize = 20;      // number of users to list on one page
30    var $_edit_user = '';     // set to user selected for editing
31    var $_edit_userdata = array();
32    var $_disabled = '';      // if disabled set to explanatory string
33
34    /**
35     * Constructor
36     */
37    function admin_plugin_usermanager(){
38        global $auth;
39
40        $this->setupLocale();
41
42        if (!isset($auth)) {
43          $this->disabled = $this->lang['noauth'];
44        } else if (!$auth->canDo('getUsers')) {
45          $this->disabled = $this->lang['nosupport'];
46        } else {
47
48          // we're good to go
49          $this->_auth = & $auth;
50
51        }
52    }
53
54     /**
55     * return prompt for admin menu
56     */
57    function getMenuText($language) {
58
59        if (!is_null($this->_auth))
60          return parent::getMenuText($language);
61
62        return $this->getLang('menu').' '.$this->disabled;
63    }
64
65    /**
66     * return sort order for position in admin menu
67     */
68    function getMenuSort() {
69        return 2;
70    }
71
72    /**
73     * handle user request
74     */
75    function handle() {
76        global $INPUT;
77        if (is_null($this->_auth)) return false;
78
79        // extract the command and any specific parameters
80        // submit button name is of the form - fn[cmd][param(s)]
81        $fn   = $INPUT->param('fn');
82
83        if (is_array($fn)) {
84            $cmd = key($fn);
85            $param = is_array($fn[$cmd]) ? key($fn[$cmd]) : null;
86        } else {
87            $cmd = $fn;
88            $param = null;
89        }
90
91        if ($cmd != "search") {
92          $this->_start = $INPUT->int('start', 0);
93          $this->_filter = $this->_retrieveFilter();
94        }
95
96        switch($cmd){
97          case "add"    : $this->_addUser(); break;
98          case "delete" : $this->_deleteUser(); break;
99          case "modify" : $this->_modifyUser(); break;
100          case "edit"   : $this->_editUser($param); break;
101          case "search" : $this->_setFilter($param);
102                          $this->_start = 0;
103                          break;
104          case "export" : $this->_export(); break;
105        }
106
107        $this->_user_total = $this->_auth->canDo('getUserCount') ? $this->_auth->getUserCount($this->_filter) : -1;
108
109        // page handling
110        switch($cmd){
111          case 'start' : $this->_start = 0; break;
112          case 'prev'  : $this->_start -= $this->_pagesize; break;
113          case 'next'  : $this->_start += $this->_pagesize; break;
114          case 'last'  : $this->_start = $this->_user_total; break;
115        }
116        $this->_validatePagination();
117    }
118
119    /**
120     * output appropriate html
121     */
122    function html() {
123        global $ID;
124
125        if(is_null($this->_auth)) {
126            print $this->lang['badauth'];
127            return false;
128        }
129
130        $user_list = $this->_auth->retrieveUsers($this->_start, $this->_pagesize, $this->_filter);
131        $users = array_keys($user_list);
132
133        $page_buttons = $this->_pagination();
134        $delete_disable = $this->_auth->canDo('delUser') ? '' : 'disabled="disabled"';
135
136        $editable = $this->_auth->canDo('UserMod');
137        $export_label = empty($this->_filter) ? $this->lang['export_all'] : $this->lang[export_filtered];
138
139        print $this->locale_xhtml('intro');
140        print $this->locale_xhtml('list');
141
142        ptln("<div id=\"user__manager\">");
143        ptln("<div class=\"level2\">");
144
145        if ($this->_user_total > 0) {
146          ptln("<p>".sprintf($this->lang['summary'],$this->_start+1,$this->_last,$this->_user_total,$this->_auth->getUserCount())."</p>");
147        } else {
148          ptln("<p>".sprintf($this->lang['nonefound'],$this->_auth->getUserCount())."</p>");
149        }
150        ptln("<form action=\"".wl($ID)."\" method=\"post\">");
151        formSecurityToken();
152        ptln("  <div class=\"table\">");
153        ptln("  <table class=\"inline\">");
154        ptln("    <thead>");
155        ptln("      <tr>");
156        ptln("        <th>&#160;</th><th>".$this->lang["user_id"]."</th><th>".$this->lang["user_name"]."</th><th>".$this->lang["user_mail"]."</th><th>".$this->lang["user_groups"]."</th>");
157        ptln("      </tr>");
158
159        ptln("      <tr>");
160        ptln("        <td class=\"rightalign\"><input type=\"image\" src=\"".DOKU_PLUGIN_IMAGES."search.png\" name=\"fn[search][new]\" title=\"".$this->lang['search_prompt']."\" alt=\"".$this->lang['search']."\" class=\"button\" /></td>");
161        ptln("        <td><input type=\"text\" name=\"userid\" class=\"edit\" value=\"".$this->_htmlFilter('user')."\" /></td>");
162        ptln("        <td><input type=\"text\" name=\"username\" class=\"edit\" value=\"".$this->_htmlFilter('name')."\" /></td>");
163        ptln("        <td><input type=\"text\" name=\"usermail\" class=\"edit\" value=\"".$this->_htmlFilter('mail')."\" /></td>");
164        ptln("        <td><input type=\"text\" name=\"usergroups\" class=\"edit\" value=\"".$this->_htmlFilter('grps')."\" /></td>");
165        ptln("      </tr>");
166        ptln("    </thead>");
167
168        if ($this->_user_total) {
169          ptln("    <tbody>");
170          foreach ($user_list as $user => $userinfo) {
171            extract($userinfo);
172            $groups = join(', ',$grps);
173            ptln("    <tr class=\"user_info\">");
174            ptln("      <td class=\"centeralign\"><input type=\"checkbox\" name=\"delete[".$user."]\" ".$delete_disable." /></td>");
175            if ($editable) {
176              ptln("    <td><a href=\"".wl($ID,array('fn[edit]['.hsc($user).']' => 1,
177                                                     'do' => 'admin',
178                                                     'page' => 'usermanager',
179                                                     'sectok' => getSecurityToken())).
180                   "\" title=\"".$this->lang['edit_prompt']."\">".hsc($user)."</a></td>");
181            } else {
182              ptln("    <td>".hsc($user)."</td>");
183            }
184            ptln("      <td>".hsc($name)."</td><td>".hsc($mail)."</td><td>".hsc($groups)."</td>");
185            ptln("    </tr>");
186          }
187          ptln("    </tbody>");
188        }
189
190        ptln("    <tbody>");
191        ptln("      <tr><td colspan=\"5\" class=\"centeralign\">");
192        ptln("        <span class=\"medialeft\">");
193        ptln("          <input type=\"submit\" name=\"fn[delete]\" ".$delete_disable." class=\"button\" value=\"".$this->lang['delete_selected']."\" id=\"usrmgr__del\" />");
194        ptln("        </span>");
195        ptln("        <span class=\"mediaright\">");
196        ptln("          <input type=\"submit\" name=\"fn[start]\" ".$page_buttons['start']." class=\"button\" value=\"".$this->lang['start']."\" />");
197        ptln("          <input type=\"submit\" name=\"fn[prev]\" ".$page_buttons['prev']." class=\"button\" value=\"".$this->lang['prev']."\" />");
198        ptln("          <input type=\"submit\" name=\"fn[next]\" ".$page_buttons['next']." class=\"button\" value=\"".$this->lang['next']."\" />");
199        ptln("          <input type=\"submit\" name=\"fn[last]\" ".$page_buttons['last']." class=\"button\" value=\"".$this->lang['last']."\" />");
200        ptln("        </span>");
201        if (!empty($this->_filter)) {
202            ptln("    <input type=\"submit\" name=\"fn[search][clear]\" class=\"button\" value=\"".$this->lang['clear']."\" />");
203        }
204        ptln("        <input type=\"submit\" name=\"fn[export]\" class=\"button\" value=\"".$export_label."\" />");
205        ptln("        <input type=\"hidden\" name=\"do\"    value=\"admin\" />");
206        ptln("        <input type=\"hidden\" name=\"page\"  value=\"usermanager\" />");
207
208        $this->_htmlFilterSettings(2);
209
210        ptln("      </td></tr>");
211        ptln("    </tbody>");
212        ptln("  </table>");
213        ptln("  </div>");
214
215        ptln("</form>");
216        ptln("</div>");
217
218        $style = $this->_edit_user ? " class=\"edit_user\"" : "";
219
220        if ($this->_auth->canDo('addUser')) {
221          ptln("<div".$style.">");
222          print $this->locale_xhtml('add');
223          ptln("  <div class=\"level2\">");
224
225          $this->_htmlUserForm('add',null,array(),4);
226
227          ptln("  </div>");
228          ptln("</div>");
229        }
230
231        if($this->_edit_user  && $this->_auth->canDo('UserMod')){
232          ptln("<div".$style." id=\"scroll__here\">");
233          print $this->locale_xhtml('edit');
234          ptln("  <div class=\"level2\">");
235
236          $this->_htmlUserForm('modify',$this->_edit_user,$this->_edit_userdata,4);
237
238          ptln("  </div>");
239          ptln("</div>");
240        }
241        ptln("</div>");
242    }
243
244
245    /**
246     * @todo disable fields which the backend can't change
247     */
248    function _htmlUserForm($cmd,$user='',$userdata=array(),$indent=0) {
249        global $conf;
250        global $ID;
251
252        $name = $mail = $groups = '';
253        $notes = array();
254
255        if ($user) {
256          extract($userdata);
257          if (!empty($grps)) $groups = join(',',$grps);
258        } else {
259          $notes[] = sprintf($this->lang['note_group'],$conf['defaultgroup']);
260        }
261
262        ptln("<form action=\"".wl($ID)."\" method=\"post\">",$indent);
263        formSecurityToken();
264        ptln("  <div class=\"table\">",$indent);
265        ptln("  <table class=\"inline\">",$indent);
266        ptln("    <thead>",$indent);
267        ptln("      <tr><th>".$this->lang["field"]."</th><th>".$this->lang["value"]."</th></tr>",$indent);
268        ptln("    </thead>",$indent);
269        ptln("    <tbody>",$indent);
270
271        $this->_htmlInputField($cmd."_userid",    "userid",    $this->lang["user_id"],    $user,  $this->_auth->canDo("modLogin"), $indent+6);
272        $this->_htmlInputField($cmd."_userpass",  "userpass",  $this->lang["user_pass"],  "",     $this->_auth->canDo("modPass"),  $indent+6);
273        $this->_htmlInputField($cmd."_username",  "username",  $this->lang["user_name"],  $name,  $this->_auth->canDo("modName"),  $indent+6);
274        $this->_htmlInputField($cmd."_usermail",  "usermail",  $this->lang["user_mail"],  $mail,  $this->_auth->canDo("modMail"),  $indent+6);
275        $this->_htmlInputField($cmd."_usergroups","usergroups",$this->lang["user_groups"],$groups,$this->_auth->canDo("modGroups"),$indent+6);
276
277        if ($this->_auth->canDo("modPass")) {
278          $notes[] = $this->lang['note_pass'];
279          if ($user) {
280            $notes[] = $this->lang['note_notify'];
281          }
282
283          ptln("<tr><td><label for=\"".$cmd."_usernotify\" >".$this->lang["user_notify"].": </label></td><td><input type=\"checkbox\" id=\"".$cmd."_usernotify\" name=\"usernotify\" value=\"1\" /></td></tr>", $indent);
284        }
285
286        ptln("    </tbody>",$indent);
287        ptln("    <tbody>",$indent);
288        ptln("      <tr>",$indent);
289        ptln("        <td colspan=\"2\">",$indent);
290        ptln("          <input type=\"hidden\" name=\"do\"    value=\"admin\" />",$indent);
291        ptln("          <input type=\"hidden\" name=\"page\"  value=\"usermanager\" />",$indent);
292
293        // save current $user, we need this to access details if the name is changed
294        if ($user)
295          ptln("          <input type=\"hidden\" name=\"userid_old\"  value=\"".$user."\" />",$indent);
296
297        $this->_htmlFilterSettings($indent+10);
298
299        ptln("          <input type=\"submit\" name=\"fn[".$cmd."]\" class=\"button\" value=\"".$this->lang[$cmd]."\" />",$indent);
300        ptln("        </td>",$indent);
301        ptln("      </tr>",$indent);
302        ptln("    </tbody>",$indent);
303        ptln("  </table>",$indent);
304        ptln("  </div>",$indent);
305
306        foreach ($notes as $note)
307          ptln("<div class=\"fn\">".$note."</div>",$indent);
308
309        ptln("</form>",$indent);
310    }
311
312    function _htmlInputField($id, $name, $label, $value, $cando, $indent=0) {
313        $class = $cando ? '' : ' class="disabled"';
314        echo str_pad('',$indent);
315
316        if($name == 'userpass'){
317            $fieldtype = 'password';
318            $autocomp  = 'autocomplete="off"';
319        }elseif($name == 'usermail'){
320            $fieldtype = 'email';
321            $autocomp  = '';
322        }else{
323            $fieldtype = 'text';
324            $autocomp  = '';
325        }
326
327
328        echo "<tr $class>";
329        echo "<td><label for=\"$id\" >$label: </label></td>";
330        echo "<td>";
331        if($cando){
332            echo "<input type=\"$fieldtype\" id=\"$id\" name=\"$name\" value=\"$value\" class=\"edit\" $autocomp />";
333        }else{
334            echo "<input type=\"hidden\" name=\"$name\" value=\"$value\" />";
335            echo "<input type=\"$fieldtype\" id=\"$id\" name=\"$name\" value=\"$value\" class=\"edit disabled\" disabled=\"disabled\" />";
336        }
337        echo "</td>";
338        echo "</tr>";
339    }
340
341    function _htmlFilter($key) {
342        if (empty($this->_filter)) return '';
343        return (isset($this->_filter[$key]) ? hsc($this->_filter[$key]) : '');
344    }
345
346    function _htmlFilterSettings($indent=0) {
347
348        ptln("<input type=\"hidden\" name=\"start\" value=\"".$this->_start."\" />",$indent);
349
350        foreach ($this->_filter as $key => $filter) {
351          ptln("<input type=\"hidden\" name=\"filter[".$key."]\" value=\"".hsc($filter)."\" />",$indent);
352        }
353    }
354
355    function _addUser(){
356        global $INPUT;
357        if (!checkSecurityToken()) return false;
358        if (!$this->_auth->canDo('addUser')) return false;
359
360        list($user,$pass,$name,$mail,$grps) = $this->_retrieveUser();
361        if (empty($user)) return false;
362
363        if ($this->_auth->canDo('modPass')){
364          if (empty($pass)){
365            if($INPUT->has('usernotify')){
366              $pass = auth_pwgen($user);
367            } else {
368              msg($this->lang['add_fail'], -1);
369              return false;
370            }
371          }
372        } else {
373          if (!empty($pass)){
374            msg($this->lang['add_fail'], -1);
375            return false;
376          }
377        }
378
379        if ($this->_auth->canDo('modName')){
380          if (empty($name)){
381            msg($this->lang['add_fail'], -1);
382            return false;
383          }
384        } else {
385          if (!empty($name)){
386            return false;
387          }
388        }
389
390        if ($this->_auth->canDo('modMail')){
391          if (empty($mail)){
392            msg($this->lang['add_fail'], -1);
393            return false;
394          }
395        } else {
396          if (!empty($mail)){
397            return false;
398          }
399        }
400
401        if ($ok = $this->_auth->triggerUserMod('create', array($user,$pass,$name,$mail,$grps))) {
402
403          msg($this->lang['add_ok'], 1);
404
405          if ($INPUT->has('usernotify') && $pass) {
406            $this->_notifyUser($user,$pass);
407          }
408        } else {
409          msg($this->lang['add_fail'], -1);
410        }
411
412        return $ok;
413    }
414
415    /**
416     * Delete user
417     */
418    function _deleteUser(){
419        global $conf, $INPUT;
420
421        if (!checkSecurityToken()) return false;
422        if (!$this->_auth->canDo('delUser')) return false;
423
424        $selected = $INPUT->arr('delete');
425        if (empty($selected)) return false;
426        $selected = array_keys($selected);
427
428        if(in_array($_SERVER['REMOTE_USER'], $selected)) {
429            msg("You can't delete yourself!", -1);
430            return false;
431        }
432
433        $count = $this->_auth->triggerUserMod('delete', array($selected));
434        if ($count == count($selected)) {
435          $text = str_replace('%d', $count, $this->lang['delete_ok']);
436          msg("$text.", 1);
437        } else {
438          $part1 = str_replace('%d', $count, $this->lang['delete_ok']);
439          $part2 = str_replace('%d', (count($selected)-$count), $this->lang['delete_fail']);
440          msg("$part1, $part2",-1);
441        }
442
443        // invalidate all sessions
444        io_saveFile($conf['cachedir'].'/sessionpurge',time());
445
446        return true;
447    }
448
449    /**
450     * Edit user (a user has been selected for editing)
451     */
452    function _editUser($param) {
453        if (!checkSecurityToken()) return false;
454        if (!$this->_auth->canDo('UserMod')) return false;
455
456        $user = cleanID(preg_replace('/.*:/','',$param));
457        $userdata = $this->_auth->getUserData($user);
458
459        // no user found?
460        if (!$userdata) {
461          msg($this->lang['edit_usermissing'],-1);
462          return false;
463        }
464
465        $this->_edit_user = $user;
466        $this->_edit_userdata = $userdata;
467
468        return true;
469    }
470
471    /**
472     * Modify user (modified user data has been recieved)
473     */
474    function _modifyUser(){
475        global $conf, $INPUT;
476
477        if (!checkSecurityToken()) return false;
478        if (!$this->_auth->canDo('UserMod')) return false;
479
480        // get currently valid  user data
481        $olduser = cleanID(preg_replace('/.*:/','',$INPUT->str('userid_old')));
482        $oldinfo = $this->_auth->getUserData($olduser);
483
484        // get new user data subject to change
485        list($newuser,$newpass,$newname,$newmail,$newgrps) = $this->_retrieveUser();
486        if (empty($newuser)) return false;
487
488        $changes = array();
489        if ($newuser != $olduser) {
490
491          if (!$this->_auth->canDo('modLogin')) {        // sanity check, shouldn't be possible
492            msg($this->lang['update_fail'],-1);
493            return false;
494          }
495
496          // check if $newuser already exists
497          if ($this->_auth->getUserData($newuser)) {
498            msg(sprintf($this->lang['update_exists'],$newuser),-1);
499            $re_edit = true;
500          } else {
501            $changes['user'] = $newuser;
502          }
503        }
504
505        // generate password if left empty and notification is on
506        if($INPUT->has('usernotify') && empty($newpass)){
507            $newpass = auth_pwgen($olduser);
508        }
509
510        if (!empty($newpass) && $this->_auth->canDo('modPass'))
511          $changes['pass'] = $newpass;
512        if (!empty($newname) && $this->_auth->canDo('modName') && $newname != $oldinfo['name'])
513          $changes['name'] = $newname;
514        if (!empty($newmail) && $this->_auth->canDo('modMail') && $newmail != $oldinfo['mail'])
515          $changes['mail'] = $newmail;
516        if (!empty($newgrps) && $this->_auth->canDo('modGroups') && $newgrps != $oldinfo['grps'])
517          $changes['grps'] = $newgrps;
518
519        if ($ok = $this->_auth->triggerUserMod('modify', array($olduser, $changes))) {
520          msg($this->lang['update_ok'],1);
521
522          if ($INPUT->has('usernotify') && $newpass) {
523            $notify = empty($changes['user']) ? $olduser : $newuser;
524            $this->_notifyUser($notify,$newpass);
525          }
526
527          // invalidate all sessions
528          io_saveFile($conf['cachedir'].'/sessionpurge',time());
529
530        } else {
531          msg($this->lang['update_fail'],-1);
532        }
533
534        if (!empty($re_edit)) {
535            $this->_editUser($olduser);
536        }
537
538        return $ok;
539    }
540
541    /**
542     * send password change notification email
543     */
544    function _notifyUser($user, $password) {
545
546        if ($sent = auth_sendPassword($user,$password)) {
547          msg($this->lang['notify_ok'], 1);
548        } else {
549          msg($this->lang['notify_fail'], -1);
550        }
551
552        return $sent;
553    }
554
555    /**
556     * retrieve & clean user data from the form
557     *
558     * @return array (user, password, full name, email, array(groups))
559     */
560    function _retrieveUser($clean=true) {
561        global $auth;
562        global $INPUT;
563
564        $user[0] = ($clean) ? $auth->cleanUser($INPUT->str('userid')) : $INPUT->str('userid');
565        $user[1] = $INPUT->str('userpass');
566        $user[2] = $INPUT->str('username');
567        $user[3] = $INPUT->str('usermail');
568        $user[4] = explode(',',$INPUT->str('usergroups'));
569
570        $user[4] = array_map('trim',$user[4]);
571        if($clean) $user[4] = array_map(array($auth,'cleanGroup'),$user[4]);
572        $user[4] = array_filter($user[4]);
573        $user[4] = array_unique($user[4]);
574        if(!count($user[4])) $user[4] = null;
575
576        return $user;
577    }
578
579    function _setFilter($op) {
580
581        $this->_filter = array();
582
583        if ($op == 'new') {
584          list($user,$pass,$name,$mail,$grps) = $this->_retrieveUser(false);
585
586          if (!empty($user)) $this->_filter['user'] = $user;
587          if (!empty($name)) $this->_filter['name'] = $name;
588          if (!empty($mail)) $this->_filter['mail'] = $mail;
589          if (!empty($grps)) $this->_filter['grps'] = join('|',$grps);
590        }
591    }
592
593    function _retrieveFilter() {
594        global $INPUT;
595
596        $t_filter = $INPUT->arr('filter');
597
598        // messy, but this way we ensure we aren't getting any additional crap from malicious users
599        $filter = array();
600
601        if (isset($t_filter['user'])) $filter['user'] = $t_filter['user'];
602        if (isset($t_filter['name'])) $filter['name'] = $t_filter['name'];
603        if (isset($t_filter['mail'])) $filter['mail'] = $t_filter['mail'];
604        if (isset($t_filter['grps'])) $filter['grps'] = $t_filter['grps'];
605
606        return $filter;
607    }
608
609    function _validatePagination() {
610
611        if ($this->_start >= $this->_user_total) {
612          $this->_start = $this->_user_total - $this->_pagesize;
613        }
614        if ($this->_start < 0) $this->_start = 0;
615
616        $this->_last = min($this->_user_total, $this->_start + $this->_pagesize);
617    }
618
619    /*
620     *  return an array of strings to enable/disable pagination buttons
621     */
622    function _pagination() {
623
624        $disabled = 'disabled="disabled"';
625
626        $buttons['start'] = $buttons['prev'] = ($this->_start == 0) ? $disabled : '';
627
628        if ($this->_user_total == -1) {
629          $buttons['last'] = $disabled;
630          $buttons['next'] = '';
631        } else {
632          $buttons['last'] = $buttons['next'] = (($this->_start + $this->_pagesize) >= $this->_user_total) ? $disabled : '';
633        }
634
635        return $buttons;
636    }
637
638    /*
639     *  export a list of users in csv format using the current filter criteria
640     */
641    function _export() {
642        // list of users for export - based on current filter criteria
643        $user_list = $this->_auth->retrieveUsers(0, 0, $this->_filter);
644        $column_headings = array(
645            $this->lang["user_id"],
646            $this->lang["user_name"],
647            $this->lang["user_mail"],
648            $this->lang["user_groups"]
649        );
650
651        // ==============================================================================================
652        // GENERATE OUTPUT
653        // normal headers for downloading...
654        header('Content-type: text/csv;charset=utf-8');
655        header('Content-Disposition: attachment; filename="wikiusers.csv"');
656#       // for debugging assistance, send as text plain to the browser
657#       header('Content-type: text/plain;charset=utf-8');
658
659        // output the csv
660        $fd = fopen('php://output','w');
661        fputcsv($fd, $column_headings);
662        foreach ($user_list as $user => $info) {
663            $line = array($user, $info['name'], $info['mail'], join(',',$info['grps']));
664            fputcsv($fd, $line);
665        }
666        fclose($fd);
667        die;
668    }
669}
670