xref: /dokuwiki/lib/plugins/usermanager/admin.php (revision 6f54d7aedcf5d8eeed7a45ec2d5647129675f136) 
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    protected $_auth = null;        // auth object
25    protected $_user_total = 0;     // number of registered users
26    protected $_filter = array();   // user selection filter(s)
27    protected $_start = 0;          // index of first user to be displayed
28    protected $_last = 0;           // index of the last user to be displayed
29    protected $_pagesize = 20;      // number of users to list on one page
30    protected $_edit_user = '';     // set to user selected for editing
31    protected $_edit_userdata = array();
32    protected $_disabled = '';      // if disabled set to explanatory string
33    protected $_import_failures = array();
34    protected $_lastdisabled = false; // set to true if last user is unknown and last button is hence buggy
35
36    /**
37     * Constructor
38     */
39    public function __construct(){
40        /** @var DokuWiki_Auth_Plugin $auth */
41        global $auth;
42
43        $this->setupLocale();
44
45        if (!isset($auth)) {
46            $this->_disabled = $this->lang['noauth'];
47        } else if (!$auth->canDo('getUsers')) {
48            $this->_disabled = $this->lang['nosupport'];
49        } else {
50
51            // we're good to go
52            $this->_auth = & $auth;
53
54        }
55
56        // attempt to retrieve any import failures from the session
57        if (!empty($_SESSION['import_failures'])){
58            $this->_import_failures = $_SESSION['import_failures'];
59        }
60    }
61
62    /**
63     * Return prompt for admin menu
64     *
65     * @param string $language
66     * @return string
67     */
68    public function getMenuText($language) {
69
70        if (!is_null($this->_auth))
71          return parent::getMenuText($language);
72
73        return $this->getLang('menu').' '.$this->_disabled;
74    }
75
76    /**
77     * return sort order for position in admin menu
78     *
79     * @return int
80     */
81    public function getMenuSort() {
82        return 2;
83    }
84
85    /**
86     * @return int current start value for pageination
87     */
88    public function getStart() {
89        return $this->_start;
90    }
91
92    /**
93     * @return int number of users per page
94     */
95    public function getPagesize() {
96        return $this->_pagesize;
97    }
98
99    /**
100     * @param boolean $lastdisabled
101     */
102    public function setLastdisabled($lastdisabled) {
103        $this->_lastdisabled = $lastdisabled;
104    }
105
106    /**
107     * Handle user request
108     *
109     * @return bool
110     */
111    public function handle() {
112        global $INPUT;
113        if (is_null($this->_auth)) return false;
114
115        // extract the command and any specific parameters
116        // submit button name is of the form - fn[cmd][param(s)]
117        $fn   = $INPUT->param('fn');
118
119        if (is_array($fn)) {
120            $cmd = key($fn);
121            $param = is_array($fn[$cmd]) ? key($fn[$cmd]) : null;
122        } else {
123            $cmd = $fn;
124            $param = null;
125        }
126
127        if ($cmd != "search") {
128            $this->_start = $INPUT->int('start', 0);
129            $this->_filter = $this->_retrieveFilter();
130        }
131
132        switch($cmd){
133            case "add"    : $this->_addUser(); break;
134            case "delete" : $this->_deleteUser(); break;
135            case "modify" : $this->_modifyUser(); break;
136            case "edit"   : $this->_editUser($param); break;
137            case "search" : $this->_setFilter($param);
138                            $this->_start = 0;
139                            break;
140            case "export" : $this->_export(); break;
141            case "import" : $this->_import(); break;
142            case "importfails" : $this->_downloadImportFailures(); break;
143        }
144
145        $this->_user_total = $this->_auth->canDo('getUserCount') ? $this->_auth->getUserCount($this->_filter) : -1;
146
147        // page handling
148        switch($cmd){
149            case 'start' : $this->_start = 0; break;
150            case 'prev'  : $this->_start -= $this->_pagesize; break;
151            case 'next'  : $this->_start += $this->_pagesize; break;
152            case 'last'  : $this->_start = $this->_user_total; break;
153        }
154        $this->_validatePagination();
155        return true;
156    }
157
158    /**
159     * Output appropriate html
160     *
161     * @return bool
162     */
163    public function html() {
164        global $ID;
165
166        if(is_null($this->_auth)) {
167            print $this->lang['badauth'];
168            return false;
169        }
170
171        $user_list = $this->_auth->retrieveUsers($this->_start, $this->_pagesize, $this->_filter);
172
173        $page_buttons = $this->_pagination();
174        $delete_disable = $this->_auth->canDo('delUser') ? '' : 'disabled="disabled"';
175
176        $editable = $this->_auth->canDo('UserMod');
177        $export_label = empty($this->_filter) ? $this->lang['export_all'] : $this->lang['export_filtered'];
178
179        print $this->locale_xhtml('intro');
180        print $this->locale_xhtml('list');
181
182        ptln("<div id=\"user__manager\">");
183        ptln("<div class=\"level2\">");
184
185        if ($this->_user_total > 0) {
186            ptln("<p>".sprintf($this->lang['summary'],$this->_start+1,$this->_last,$this->_user_total,$this->_auth->getUserCount())."</p>");
187        } else {
188            if($this->_user_total < 0) {
189                $allUserTotal = 0;
190            } else {
191                $allUserTotal = $this->_auth->getUserCount();
192            }
193            ptln("<p>".sprintf($this->lang['nonefound'], $allUserTotal)."</p>");
194        }
195        ptln("<form action=\"".wl($ID)."\" method=\"post\">");
196        formSecurityToken();
197        ptln("  <div class=\"table\">");
198        ptln("  <table class=\"inline\">");
199        ptln("    <thead>");
200        ptln("      <tr>");
201        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>");
202        ptln("      </tr>");
203
204        ptln("      <tr>");
205        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>");
206        ptln("        <td><input type=\"text\" name=\"userid\" class=\"edit\" value=\"".$this->_htmlFilter('user')."\" /></td>");
207        ptln("        <td><input type=\"text\" name=\"username\" class=\"edit\" value=\"".$this->_htmlFilter('name')."\" /></td>");
208        ptln("        <td><input type=\"text\" name=\"usermail\" class=\"edit\" value=\"".$this->_htmlFilter('mail')."\" /></td>");
209        ptln("        <td><input type=\"text\" name=\"usergroups\" class=\"edit\" value=\"".$this->_htmlFilter('grps')."\" /></td>");
210        ptln("      </tr>");
211        ptln("    </thead>");
212
213        if ($this->_user_total) {
214            ptln("    <tbody>");
215            foreach ($user_list as $user => $userinfo) {
216                extract($userinfo);
217                /**
218                 * @var string $name
219                 * @var string $pass
220                 * @var string $mail
221                 * @var array  $grps
222                 */
223                $groups = join(', ',$grps);
224                ptln("    <tr class=\"user_info\">");
225                ptln("      <td class=\"centeralign\"><input type=\"checkbox\" name=\"delete[".hsc($user)."]\" ".$delete_disable." /></td>");
226                if ($editable) {
227                    ptln("    <td><a href=\"".wl($ID,array('fn[edit]['.$user.']' => 1,
228                                                           'do' => 'admin',
229                                                           'page' => 'usermanager',
230                                                           'sectok' => getSecurityToken())).
231                         "\" title=\"".$this->lang['edit_prompt']."\">".hsc($user)."</a></td>");
232                } else {
233                    ptln("    <td>".hsc($user)."</td>");
234                }
235                ptln("      <td>".hsc($name)."</td><td>".hsc($mail)."</td><td>".hsc($groups)."</td>");
236                ptln("    </tr>");
237            }
238            ptln("    </tbody>");
239        }
240
241        ptln("    <tbody>");
242        ptln("      <tr><td colspan=\"5\" class=\"centeralign\">");
243        ptln("        <span class=\"medialeft\">");
244        ptln("          <button type=\"submit\" name=\"fn[delete]\" id=\"usrmgr__del\" ".$delete_disable.">".$this->lang['delete_selected']."</button>");
245        ptln("        </span>");
246        ptln("        <span class=\"mediaright\">");
247        ptln("          <button type=\"submit\" name=\"fn[start]\" ".$page_buttons['start'].">".$this->lang['start']."</button>");
248        ptln("          <button type=\"submit\" name=\"fn[prev]\" ".$page_buttons['prev'].">".$this->lang['prev']."</button>");
249        ptln("          <button type=\"submit\" name=\"fn[next]\" ".$page_buttons['next'].">".$this->lang['next']."</button>");
250        ptln("          <button type=\"submit\" name=\"fn[last]\" ".$page_buttons['last'].">".$this->lang['last']."</button>");
251        ptln("        </span>");
252        if (!empty($this->_filter)) {
253            ptln("    <button type=\"submit\" name=\"fn[search][clear]\">".$this->lang['clear']."</button>");
254        }
255        ptln("        <button type=\"submit\" name=\"fn[export]\">".$export_label."</button>");
256        ptln("        <input type=\"hidden\" name=\"do\"    value=\"admin\" />");
257        ptln("        <input type=\"hidden\" name=\"page\"  value=\"usermanager\" />");
258
259        $this->_htmlFilterSettings(2);
260
261        ptln("      </td></tr>");
262        ptln("    </tbody>");
263        ptln("  </table>");
264        ptln("  </div>");
265
266        ptln("</form>");
267        ptln("</div>");
268
269        $style = $this->_edit_user ? " class=\"edit_user\"" : "";
270
271        if ($this->_auth->canDo('addUser')) {
272            ptln("<div".$style.">");
273            print $this->locale_xhtml('add');
274            ptln("  <div class=\"level2\">");
275
276            $this->_htmlUserForm('add',null,array(),4);
277
278            ptln("  </div>");
279            ptln("</div>");
280        }
281
282        if($this->_edit_user  && $this->_auth->canDo('UserMod')){
283            ptln("<div".$style." id=\"scroll__here\">");
284            print $this->locale_xhtml('edit');
285            ptln("  <div class=\"level2\">");
286
287            $this->_htmlUserForm('modify',$this->_edit_user,$this->_edit_userdata,4);
288
289            ptln("  </div>");
290            ptln("</div>");
291        }
292
293        if ($this->_auth->canDo('addUser')) {
294            $this->_htmlImportForm();
295        }
296        ptln("</div>");
297        return true;
298    }
299
300    /**
301     * User Manager is only available if the auth backend supports it
302     *
303     * @inheritdoc
304     * @return bool
305     */
306    public function isAccessibleByCurrentUser()
307    {
308        /** @var DokuWiki_Auth_Plugin $auth */
309        global $auth;
310        if(!$auth || !$auth->canDo('getUsers') ) {
311            return false;
312        }
313
314        return parent::isAccessibleByCurrentUser();
315    }
316
317
318    /**
319     * Display form to add or modify a user
320     *
321     * @param string $cmd 'add' or 'modify'
322     * @param string $user id of user
323     * @param array  $userdata array with name, mail, pass and grps
324     * @param int    $indent
325     */
326    protected function _htmlUserForm($cmd,$user='',$userdata=array(),$indent=0) {
327        global $conf;
328        global $ID;
329        global $lang;
330
331        $name = $mail = $groups = '';
332        $notes = array();
333
334        if ($user) {
335            extract($userdata);
336            if (!empty($grps)) $groups = join(',',$grps);
337        } else {
338            $notes[] = sprintf($this->lang['note_group'],$conf['defaultgroup']);
339        }
340
341        ptln("<form action=\"".wl($ID)."\" method=\"post\">",$indent);
342        formSecurityToken();
343        ptln("  <div class=\"table\">",$indent);
344        ptln("  <table class=\"inline\">",$indent);
345        ptln("    <thead>",$indent);
346        ptln("      <tr><th>".$this->lang["field"]."</th><th>".$this->lang["value"]."</th></tr>",$indent);
347        ptln("    </thead>",$indent);
348        ptln("    <tbody>",$indent);
349
350        $this->_htmlInputField($cmd."_userid",    "userid",    $this->lang["user_id"],    $user,  $this->_auth->canDo("modLogin"),   true, $indent+6);
351        $this->_htmlInputField($cmd."_userpass",  "userpass",  $this->lang["user_pass"],  "",     $this->_auth->canDo("modPass"),   false, $indent+6);
352        $this->_htmlInputField($cmd."_userpass2", "userpass2", $lang["passchk"],          "",     $this->_auth->canDo("modPass"),   false, $indent+6);
353        $this->_htmlInputField($cmd."_username",  "username",  $this->lang["user_name"],  $name,  $this->_auth->canDo("modName"),    true, $indent+6);
354        $this->_htmlInputField($cmd."_usermail",  "usermail",  $this->lang["user_mail"],  $mail,  $this->_auth->canDo("modMail"),    true, $indent+6);
355        $this->_htmlInputField($cmd."_usergroups","usergroups",$this->lang["user_groups"],$groups,$this->_auth->canDo("modGroups"), false, $indent+6);
356
357        if ($this->_auth->canDo("modPass")) {
358            if ($cmd == 'add') {
359                $notes[] = $this->lang['note_pass'];
360            }
361            if ($user) {
362                $notes[] = $this->lang['note_notify'];
363            }
364
365            ptln("<tr><td><label for=\"".$cmd."_usernotify\" >".$this->lang["user_notify"].": </label></td><td><input type=\"checkbox\" id=\"".$cmd."_usernotify\" name=\"usernotify\" value=\"1\" /></td></tr>", $indent);
366        }
367
368        ptln("    </tbody>",$indent);
369        ptln("    <tbody>",$indent);
370        ptln("      <tr>",$indent);
371        ptln("        <td colspan=\"2\">",$indent);
372        ptln("          <input type=\"hidden\" name=\"do\"    value=\"admin\" />",$indent);
373        ptln("          <input type=\"hidden\" name=\"page\"  value=\"usermanager\" />",$indent);
374
375        // save current $user, we need this to access details if the name is changed
376        if ($user)
377          ptln("          <input type=\"hidden\" name=\"userid_old\"  value=\"".hsc($user)."\" />",$indent);
378
379        $this->_htmlFilterSettings($indent+10);
380
381        ptln("          <button type=\"submit\" name=\"fn[".$cmd."]\">".$this->lang[$cmd]."</button>",$indent);
382        ptln("        </td>",$indent);
383        ptln("      </tr>",$indent);
384        ptln("    </tbody>",$indent);
385        ptln("  </table>",$indent);
386
387        if ($notes) {
388            ptln("    <ul class=\"notes\">");
389            foreach ($notes as $note) {
390                ptln("      <li><span class=\"li\">".$note."</li>",$indent);
391            }
392            ptln("    </ul>");
393        }
394        ptln("  </div>",$indent);
395        ptln("</form>",$indent);
396    }
397
398    /**
399     * Prints a inputfield
400     *
401     * @param string $id
402     * @param string $name
403     * @param string $label
404     * @param string $value
405     * @param bool   $cando whether auth backend is capable to do this action
406     * @param bool   $required is this field required?
407     * @param int $indent
408     */
409    protected function _htmlInputField($id, $name, $label, $value, $cando, $required, $indent=0) {
410        $class = $cando ? '' : ' class="disabled"';
411        echo str_pad('',$indent);
412
413        if($name == 'userpass' || $name == 'userpass2'){
414            $fieldtype = 'password';
415            $autocomp  = 'autocomplete="off"';
416        }elseif($name == 'usermail'){
417            $fieldtype = 'email';
418            $autocomp  = '';
419        }else{
420            $fieldtype = 'text';
421            $autocomp  = '';
422        }
423        $value = hsc($value);
424
425        echo "<tr $class>";
426        echo "<td><label for=\"$id\" >$label: </label></td>";
427        echo "<td>";
428        if($cando){
429            $req = '';
430            if($required) $req = 'required="required"';
431            echo "<input type=\"$fieldtype\" id=\"$id\" name=\"$name\" value=\"$value\" class=\"edit\" $autocomp $req />";
432        }else{
433            echo "<input type=\"hidden\" name=\"$name\" value=\"$value\" />";
434            echo "<input type=\"$fieldtype\" id=\"$id\" name=\"$name\" value=\"$value\" class=\"edit disabled\" disabled=\"disabled\" />";
435        }
436        echo "</td>";
437        echo "</tr>";
438    }
439
440    /**
441     * Returns htmlescaped filter value
442     *
443     * @param string $key name of search field
444     * @return string html escaped value
445     */
446    protected function _htmlFilter($key) {
447        if (empty($this->_filter)) return '';
448        return (isset($this->_filter[$key]) ? hsc($this->_filter[$key]) : '');
449    }
450
451    /**
452     * Print hidden inputs with the current filter values
453     *
454     * @param int $indent
455     */
456    protected function _htmlFilterSettings($indent=0) {
457
458        ptln("<input type=\"hidden\" name=\"start\" value=\"".$this->_start."\" />",$indent);
459
460        foreach ($this->_filter as $key => $filter) {
461            ptln("<input type=\"hidden\" name=\"filter[".$key."]\" value=\"".hsc($filter)."\" />",$indent);
462        }
463    }
464
465    /**
466     * Print import form and summary of previous import
467     *
468     * @param int $indent
469     */
470    protected function _htmlImportForm($indent=0) {
471        global $ID;
472
473        $failure_download_link = wl($ID,array('do'=>'admin','page'=>'usermanager','fn[importfails]'=>1));
474
475        ptln('<div class="level2 import_users">',$indent);
476        print $this->locale_xhtml('import');
477        ptln('  <form action="'.wl($ID).'" method="post" enctype="multipart/form-data">',$indent);
478        formSecurityToken();
479        ptln('    <label>'.$this->lang['import_userlistcsv'].'<input type="file" name="import" /></label>',$indent);
480        ptln('    <button type="submit" name="fn[import]">'.$this->lang['import'].'</button>',$indent);
481        ptln('    <input type="hidden" name="do"    value="admin" />',$indent);
482        ptln('    <input type="hidden" name="page"  value="usermanager" />',$indent);
483
484        $this->_htmlFilterSettings($indent+4);
485        ptln('  </form>',$indent);
486        ptln('</div>');
487
488        // list failures from the previous import
489        if ($this->_import_failures) {
490            $digits = strlen(count($this->_import_failures));
491            ptln('<div class="level3 import_failures">',$indent);
492            ptln('  <h3>'.$this->lang['import_header'].'</h3>');
493            ptln('  <table class="import_failures">',$indent);
494            ptln('    <thead>',$indent);
495            ptln('      <tr>',$indent);
496            ptln('        <th class="line">'.$this->lang['line'].'</th>',$indent);
497            ptln('        <th class="error">'.$this->lang['error'].'</th>',$indent);
498            ptln('        <th class="userid">'.$this->lang['user_id'].'</th>',$indent);
499            ptln('        <th class="username">'.$this->lang['user_name'].'</th>',$indent);
500            ptln('        <th class="usermail">'.$this->lang['user_mail'].'</th>',$indent);
501            ptln('        <th class="usergroups">'.$this->lang['user_groups'].'</th>',$indent);
502            ptln('      </tr>',$indent);
503            ptln('    </thead>',$indent);
504            ptln('    <tbody>',$indent);
505            foreach ($this->_import_failures as $line => $failure) {
506                ptln('      <tr>',$indent);
507                ptln('        <td class="lineno"> '.sprintf('%0'.$digits.'d',$line).' </td>',$indent);
508                ptln('        <td class="error">' .$failure['error'].' </td>', $indent);
509                ptln('        <td class="field userid"> '.hsc($failure['user'][0]).' </td>',$indent);
510                ptln('        <td class="field username"> '.hsc($failure['user'][2]).' </td>',$indent);
511                ptln('        <td class="field usermail"> '.hsc($failure['user'][3]).' </td>',$indent);
512                ptln('        <td class="field usergroups"> '.hsc($failure['user'][4]).' </td>',$indent);
513                ptln('      </tr>',$indent);
514            }
515            ptln('    </tbody>',$indent);
516            ptln('  </table>',$indent);
517            ptln('  <p><a href="'.$failure_download_link.'">'.$this->lang['import_downloadfailures'].'</a></p>');
518            ptln('</div>');
519        }
520
521    }
522
523    /**
524     * Add an user to auth backend
525     *
526     * @return bool whether succesful
527     */
528    protected function _addUser(){
529        global $INPUT;
530        if (!checkSecurityToken()) return false;
531        if (!$this->_auth->canDo('addUser')) return false;
532
533        list($user,$pass,$name,$mail,$grps,$passconfirm) = $this->_retrieveUser();
534        if (empty($user)) return false;
535
536        if ($this->_auth->canDo('modPass')){
537            if (empty($pass)){
538                if($INPUT->has('usernotify')){
539                    $pass = auth_pwgen($user);
540                } else {
541                    msg($this->lang['add_fail'], -1);
542                    msg($this->lang['addUser_error_missing_pass'], -1);
543                    return false;
544                }
545            } else {
546                if (!$this->_verifyPassword($pass,$passconfirm)) {
547                    msg($this->lang['add_fail'], -1);
548                    msg($this->lang['addUser_error_pass_not_identical'], -1);
549                    return false;
550                }
551            }
552        } else {
553            if (!empty($pass)){
554                msg($this->lang['add_fail'], -1);
555                msg($this->lang['addUser_error_modPass_disabled'], -1);
556                return false;
557            }
558        }
559
560        if ($this->_auth->canDo('modName')){
561            if (empty($name)){
562                msg($this->lang['add_fail'], -1);
563                msg($this->lang['addUser_error_name_missing'], -1);
564                return false;
565            }
566        } else {
567            if (!empty($name)){
568                msg($this->lang['add_fail'], -1);
569                msg($this->lang['addUser_error_modName_disabled'], -1);
570                return false;
571            }
572        }
573
574        if ($this->_auth->canDo('modMail')){
575            if (empty($mail)){
576                msg($this->lang['add_fail'], -1);
577                msg($this->lang['addUser_error_mail_missing'], -1);
578                return false;
579            }
580        } else {
581            if (!empty($mail)){
582                msg($this->lang['add_fail'], -1);
583                msg($this->lang['addUser_error_modMail_disabled'], -1);
584                return false;
585            }
586        }
587
588        if ($ok = $this->_auth->triggerUserMod('create', array($user,$pass,$name,$mail,$grps))) {
589
590            msg($this->lang['add_ok'], 1);
591
592            if ($INPUT->has('usernotify') && $pass) {
593                $this->_notifyUser($user,$pass);
594            }
595        } else {
596            msg($this->lang['add_fail'], -1);
597            msg($this->lang['addUser_error_create_event_failed'], -1);
598        }
599
600        return $ok;
601    }
602
603    /**
604     * Delete user from auth backend
605     *
606     * @return bool whether succesful
607     */
608    protected function _deleteUser(){
609        global $conf, $INPUT;
610
611        if (!checkSecurityToken()) return false;
612        if (!$this->_auth->canDo('delUser')) return false;
613
614        $selected = $INPUT->arr('delete');
615        if (empty($selected)) return false;
616        $selected = array_keys($selected);
617
618        if(in_array($_SERVER['REMOTE_USER'], $selected)) {
619            msg("You can't delete yourself!", -1);
620            return false;
621        }
622
623        $count = $this->_auth->triggerUserMod('delete', array($selected));
624        if ($count == count($selected)) {
625            $text = str_replace('%d', $count, $this->lang['delete_ok']);
626            msg("$text.", 1);
627        } else {
628            $part1 = str_replace('%d', $count, $this->lang['delete_ok']);
629            $part2 = str_replace('%d', (count($selected)-$count), $this->lang['delete_fail']);
630            msg("$part1, $part2",-1);
631        }
632
633        // invalidate all sessions
634        io_saveFile($conf['cachedir'].'/sessionpurge',time());
635
636        return true;
637    }
638
639    /**
640     * Edit user (a user has been selected for editing)
641     *
642     * @param string $param id of the user
643     * @return bool whether succesful
644     */
645    protected function _editUser($param) {
646        if (!checkSecurityToken()) return false;
647        if (!$this->_auth->canDo('UserMod')) return false;
648        $user = $this->_auth->cleanUser(preg_replace('/.*[:\/]/','',$param));
649        $userdata = $this->_auth->getUserData($user);
650
651        // no user found?
652        if (!$userdata) {
653            msg($this->lang['edit_usermissing'],-1);
654            return false;
655        }
656
657        $this->_edit_user = $user;
658        $this->_edit_userdata = $userdata;
659
660        return true;
661    }
662
663    /**
664     * Modify user in the auth backend (modified user data has been recieved)
665     *
666     * @return bool whether succesful
667     */
668    protected function _modifyUser(){
669        global $conf, $INPUT;
670
671        if (!checkSecurityToken()) return false;
672        if (!$this->_auth->canDo('UserMod')) return false;
673
674        // get currently valid  user data
675        $olduser = $this->_auth->cleanUser(preg_replace('/.*[:\/]/','',$INPUT->str('userid_old')));
676        $oldinfo = $this->_auth->getUserData($olduser);
677
678        // get new user data subject to change
679        list($newuser,$newpass,$newname,$newmail,$newgrps,$passconfirm) = $this->_retrieveUser();
680        if (empty($newuser)) return false;
681
682        $changes = array();
683        if ($newuser != $olduser) {
684
685            if (!$this->_auth->canDo('modLogin')) {        // sanity check, shouldn't be possible
686                msg($this->lang['update_fail'],-1);
687                return false;
688            }
689
690            // check if $newuser already exists
691            if ($this->_auth->getUserData($newuser)) {
692                msg(sprintf($this->lang['update_exists'],$newuser),-1);
693                $re_edit = true;
694            } else {
695                $changes['user'] = $newuser;
696            }
697        }
698        if ($this->_auth->canDo('modPass')) {
699            if ($newpass || $passconfirm) {
700                if ($this->_verifyPassword($newpass,$passconfirm)) {
701                    $changes['pass'] = $newpass;
702                } else {
703                    return false;
704                }
705            } else {
706                // no new password supplied, check if we need to generate one (or it stays unchanged)
707                if ($INPUT->has('usernotify')) {
708                    $changes['pass'] = auth_pwgen($olduser);
709                }
710            }
711        }
712
713        if (!empty($newname) && $this->_auth->canDo('modName') && $newname != $oldinfo['name']) {
714            $changes['name'] = $newname;
715        }
716        if (!empty($newmail) && $this->_auth->canDo('modMail') && $newmail != $oldinfo['mail']) {
717            $changes['mail'] = $newmail;
718        }
719        if (!empty($newgrps) && $this->_auth->canDo('modGroups') && $newgrps != $oldinfo['grps']) {
720            $changes['grps'] = $newgrps;
721        }
722
723        if ($ok = $this->_auth->triggerUserMod('modify', array($olduser, $changes))) {
724            msg($this->lang['update_ok'],1);
725
726            if ($INPUT->has('usernotify') && !empty($changes['pass'])) {
727                $notify = empty($changes['user']) ? $olduser : $newuser;
728                $this->_notifyUser($notify,$changes['pass']);
729            }
730
731            // invalidate all sessions
732            io_saveFile($conf['cachedir'].'/sessionpurge',time());
733
734        } else {
735            msg($this->lang['update_fail'],-1);
736        }
737
738        if (!empty($re_edit)) {
739            $this->_editUser($olduser);
740        }
741
742        return $ok;
743    }
744
745    /**
746     * Send password change notification email
747     *
748     * @param string $user         id of user
749     * @param string $password     plain text
750     * @param bool   $status_alert whether status alert should be shown
751     * @return bool whether succesful
752     */
753    protected function _notifyUser($user, $password, $status_alert=true) {
754
755        if ($sent = auth_sendPassword($user,$password)) {
756            if ($status_alert) {
757                msg($this->lang['notify_ok'], 1);
758            }
759        } else {
760            if ($status_alert) {
761                msg($this->lang['notify_fail'], -1);
762            }
763        }
764
765        return $sent;
766    }
767
768    /**
769     * Verify password meets minimum requirements
770     * :TODO: extend to support password strength
771     *
772     * @param string  $password   candidate string for new password
773     * @param string  $confirm    repeated password for confirmation
774     * @return bool   true if meets requirements, false otherwise
775     */
776    protected function _verifyPassword($password, $confirm) {
777        global $lang;
778
779        if (empty($password) && empty($confirm)) {
780            return false;
781        }
782
783        if ($password !== $confirm) {
784            msg($lang['regbadpass'], -1);
785            return false;
786        }
787
788        // :TODO: test password for required strength
789
790        // if we make it this far the password is good
791        return true;
792    }
793
794    /**
795     * Retrieve & clean user data from the form
796     *
797     * @param bool $clean whether the cleanUser method of the authentication backend is applied
798     * @return array (user, password, full name, email, array(groups))
799     */
800    protected function _retrieveUser($clean=true) {
801        /** @var DokuWiki_Auth_Plugin $auth */
802        global $auth;
803        global $INPUT;
804
805        $user = array();
806        $user[0] = ($clean) ? $auth->cleanUser($INPUT->str('userid')) : $INPUT->str('userid');
807        $user[1] = $INPUT->str('userpass');
808        $user[2] = $INPUT->str('username');
809        $user[3] = $INPUT->str('usermail');
810        $user[4] = explode(',',$INPUT->str('usergroups'));
811        $user[5] = $INPUT->str('userpass2');                // repeated password for confirmation
812
813        $user[4] = array_map('trim',$user[4]);
814        if($clean) $user[4] = array_map(array($auth,'cleanGroup'),$user[4]);
815        $user[4] = array_filter($user[4]);
816        $user[4] = array_unique($user[4]);
817        if(!count($user[4])) $user[4] = null;
818
819        return $user;
820    }
821
822    /**
823     * Set the filter with the current search terms or clear the filter
824     *
825     * @param string $op 'new' or 'clear'
826     */
827    protected function _setFilter($op) {
828
829        $this->_filter = array();
830
831        if ($op == 'new') {
832            list($user,/* $pass */,$name,$mail,$grps) = $this->_retrieveUser(false);
833
834            if (!empty($user)) $this->_filter['user'] = $user;
835            if (!empty($name)) $this->_filter['name'] = $name;
836            if (!empty($mail)) $this->_filter['mail'] = $mail;
837            if (!empty($grps)) $this->_filter['grps'] = join('|',$grps);
838        }
839    }
840
841    /**
842     * Get the current search terms
843     *
844     * @return array
845     */
846    protected function _retrieveFilter() {
847        global $INPUT;
848
849        $t_filter = $INPUT->arr('filter');
850
851        // messy, but this way we ensure we aren't getting any additional crap from malicious users
852        $filter = array();
853
854        if (isset($t_filter['user'])) $filter['user'] = $t_filter['user'];
855        if (isset($t_filter['name'])) $filter['name'] = $t_filter['name'];
856        if (isset($t_filter['mail'])) $filter['mail'] = $t_filter['mail'];
857        if (isset($t_filter['grps'])) $filter['grps'] = $t_filter['grps'];
858
859        return $filter;
860    }
861
862    /**
863     * Validate and improve the pagination values
864     */
865    protected function _validatePagination() {
866
867        if ($this->_start >= $this->_user_total) {
868            $this->_start = $this->_user_total - $this->_pagesize;
869        }
870        if ($this->_start < 0) $this->_start = 0;
871
872        $this->_last = min($this->_user_total, $this->_start + $this->_pagesize);
873    }
874
875    /**
876     * Return an array of strings to enable/disable pagination buttons
877     *
878     * @return array with enable/disable attributes
879     */
880    protected function _pagination() {
881
882        $disabled = 'disabled="disabled"';
883
884        $buttons = array();
885        $buttons['start'] = $buttons['prev'] = ($this->_start == 0) ? $disabled : '';
886
887        if ($this->_user_total == -1) {
888            $buttons['last'] = $disabled;
889            $buttons['next'] = '';
890        } else {
891            $buttons['last'] = $buttons['next'] = (($this->_start + $this->_pagesize) >= $this->_user_total) ? $disabled : '';
892        }
893
894        if ($this->_lastdisabled) {
895            $buttons['last'] = $disabled;
896        }
897
898        return $buttons;
899    }
900
901    /**
902     * Export a list of users in csv format using the current filter criteria
903     */
904    protected function _export() {
905        // list of users for export - based on current filter criteria
906        $user_list = $this->_auth->retrieveUsers(0, 0, $this->_filter);
907        $column_headings = array(
908            $this->lang["user_id"],
909            $this->lang["user_name"],
910            $this->lang["user_mail"],
911            $this->lang["user_groups"]
912        );
913
914        // ==============================================================================================
915        // GENERATE OUTPUT
916        // normal headers for downloading...
917        header('Content-type: text/csv;charset=utf-8');
918        header('Content-Disposition: attachment; filename="wikiusers.csv"');
919#       // for debugging assistance, send as text plain to the browser
920#       header('Content-type: text/plain;charset=utf-8');
921
922        // output the csv
923        $fd = fopen('php://output','w');
924        fputcsv($fd, $column_headings);
925        foreach ($user_list as $user => $info) {
926            $line = array($user, $info['name'], $info['mail'], join(',',$info['grps']));
927            fputcsv($fd, $line);
928        }
929        fclose($fd);
930        if (defined('DOKU_UNITTEST')){ return; }
931
932        die;
933    }
934
935    /**
936     * Import a file of users in csv format
937     *
938     * csv file should have 4 columns, user_id, full name, email, groups (comma separated)
939     *
940     * @return bool whether successful
941     */
942    protected function _import() {
943        // check we are allowed to add users
944        if (!checkSecurityToken()) return false;
945        if (!$this->_auth->canDo('addUser')) return false;
946
947        // check file uploaded ok.
948        if (empty($_FILES['import']['size']) || !empty($_FILES['import']['error']) && $this->_isUploadedFile($_FILES['import']['tmp_name'])) {
949            msg($this->lang['import_error_upload'],-1);
950            return false;
951        }
952        // retrieve users from the file
953        $this->_import_failures = array();
954        $import_success_count = 0;
955        $import_fail_count = 0;
956        $line = 0;
957        $fd = fopen($_FILES['import']['tmp_name'],'r');
958        if ($fd) {
959            while($csv = fgets($fd)){
960                if (!utf8_check($csv)) {
961                    $csv = utf8_encode($csv);
962                }
963                $raw = str_getcsv($csv);
964                $error = '';                        // clean out any errors from the previous line
965                // data checks...
966                if (1 == ++$line) {
967                    if ($raw[0] == 'user_id' || $raw[0] == $this->lang['user_id']) continue;    // skip headers
968                }
969                if (count($raw) < 4) {                                        // need at least four fields
970                    $import_fail_count++;
971                    $error = sprintf($this->lang['import_error_fields'], count($raw));
972                    $this->_import_failures[$line] = array('error' => $error, 'user' => $raw, 'orig' => $csv);
973                    continue;
974                }
975                array_splice($raw,1,0,auth_pwgen());                          // splice in a generated password
976                $clean = $this->_cleanImportUser($raw, $error);
977                if ($clean && $this->_addImportUser($clean, $error)) {
978                    $sent = $this->_notifyUser($clean[0],$clean[1],false);
979                    if (!$sent){
980                        msg(sprintf($this->lang['import_notify_fail'],$clean[0],$clean[3]),-1);
981                    }
982                    $import_success_count++;
983                } else {
984                    $import_fail_count++;
985                    array_splice($raw, 1, 1);                                  // remove the spliced in password
986                    $this->_import_failures[$line] = array('error' => $error, 'user' => $raw, 'orig' => $csv);
987                }
988            }
989            msg(sprintf($this->lang['import_success_count'], ($import_success_count+$import_fail_count), $import_success_count),($import_success_count ? 1 : -1));
990            if ($import_fail_count) {
991                msg(sprintf($this->lang['import_failure_count'], $import_fail_count),-1);
992            }
993        } else {
994            msg($this->lang['import_error_readfail'],-1);
995        }
996
997        // save import failures into the session
998        if (!headers_sent()) {
999            session_start();
1000            $_SESSION['import_failures'] = $this->_import_failures;
1001            session_write_close();
1002        }
1003        return true;
1004    }
1005
1006    /**
1007     * Returns cleaned user data
1008     *
1009     * @param array $candidate raw values of line from input file
1010     * @param string $error
1011     * @return array|false cleaned data or false
1012     */
1013    protected function _cleanImportUser($candidate, & $error){
1014        global $INPUT;
1015
1016        // kludgy ....
1017        $INPUT->set('userid', $candidate[0]);
1018        $INPUT->set('userpass', $candidate[1]);
1019        $INPUT->set('username', $candidate[2]);
1020        $INPUT->set('usermail', $candidate[3]);
1021        $INPUT->set('usergroups', $candidate[4]);
1022
1023        $cleaned = $this->_retrieveUser();
1024        list($user,/* $pass */,$name,$mail,/* $grps */) = $cleaned;
1025        if (empty($user)) {
1026            $error = $this->lang['import_error_baduserid'];
1027            return false;
1028        }
1029
1030        // no need to check password, handled elsewhere
1031
1032        if (!($this->_auth->canDo('modName') xor empty($name))){
1033            $error = $this->lang['import_error_badname'];
1034            return false;
1035        }
1036
1037        if ($this->_auth->canDo('modMail')) {
1038            if (empty($mail) || !mail_isvalid($mail)) {
1039                $error = $this->lang['import_error_badmail'];
1040                return false;
1041            }
1042        } else {
1043            if (!empty($mail)) {
1044                $error = $this->lang['import_error_badmail'];
1045                return false;
1046            }
1047        }
1048
1049        return $cleaned;
1050    }
1051
1052    /**
1053     * Adds imported user to auth backend
1054     *
1055     * Required a check of canDo('addUser') before
1056     *
1057     * @param array  $user   data of user
1058     * @param string &$error reference catched error message
1059     * @return bool whether successful
1060     */
1061    protected function _addImportUser($user, & $error){
1062        if (!$this->_auth->triggerUserMod('create', $user)) {
1063            $error = $this->lang['import_error_create'];
1064            return false;
1065        }
1066
1067        return true;
1068    }
1069
1070    /**
1071     * Downloads failures as csv file
1072     */
1073    protected function _downloadImportFailures(){
1074
1075        // ==============================================================================================
1076        // GENERATE OUTPUT
1077        // normal headers for downloading...
1078        header('Content-type: text/csv;charset=utf-8');
1079        header('Content-Disposition: attachment; filename="importfails.csv"');
1080#       // for debugging assistance, send as text plain to the browser
1081#       header('Content-type: text/plain;charset=utf-8');
1082
1083        // output the csv
1084        $fd = fopen('php://output','w');
1085        foreach ($this->_import_failures as $fail) {
1086            fputs($fd, $fail['orig']);
1087        }
1088        fclose($fd);
1089        die;
1090    }
1091
1092    /**
1093     * wrapper for is_uploaded_file to facilitate overriding by test suite
1094     *
1095     * @param string $file filename
1096     * @return bool
1097     */
1098    protected function _isUploadedFile($file) {
1099        return is_uploaded_file($file);
1100    }
1101}
1102