xref: /dokuwiki/lib/plugins/usermanager/admin.php (revision 177d6836e2f75d0e404be9c566e61725852a1e07) 
1<?php
2
3use dokuwiki\Extension\AdminPlugin;
4use dokuwiki\Extension\AuthPlugin;
5use dokuwiki\Utf8\Clean;
6/*
7 *  User Manager
8 *
9 *  Dokuwiki Admin Plugin
10 *
11 *  This version of the user manager has been modified to only work with
12 *  objectified version of auth system
13 *
14 *  @author  neolao <neolao@neolao.com>
15 *  @author  Chris Smith <chris@jalakai.co.uk>
16 */
17/**
18 * All DokuWiki plugins to extend the admin function
19 * need to inherit from this class
20 */
21class admin_plugin_usermanager extends AdminPlugin
22{
23    protected const IMAGE_DIR = DOKU_BASE.'lib/plugins/usermanager/images/';
24
25    protected $auth;        // auth object
26    protected $users_total = 0;     // number of registered users
27    protected $filter = [];   // user selection filter(s)
28    protected $start = 0;          // index of first user to be displayed
29    protected $last = 0;           // index of the last user to be displayed
30    protected $pagesize = 20;      // number of users to list on one page
31    protected $edit_user = '';     // set to user selected for editing
32    protected $edit_userdata = [];
33    protected $disabled = '';      // if disabled set to explanatory string
34    protected $import_failures = [];
35    protected $lastdisabled = false; // set to true if last user is unknown and last button is hence buggy
36
37    /**
38     * Constructor
39     */
40    public function __construct()
41    {
42        /** @var AuthPlugin $auth */
43        global $auth;
44
45        $this->setupLocale();
46
47        if (!isset($auth)) {
48            $this->disabled = $this->lang['noauth'];
49        } elseif (!$auth->canDo('getUsers')) {
50            $this->disabled = $this->lang['nosupport'];
51        } else {
52            // we're good to go
53            $this->auth = & $auth;
54        }
55
56        // attempt to retrieve any import failures from the session
57        if (!empty($_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
71        if (!is_null($this->auth))
72          return parent::getMenuText($language);
73
74        return $this->getLang('menu').' '.$this->disabled;
75    }
76
77    /**
78     * return sort order for position in admin menu
79     *
80     * @return int
81     */
82    public function getMenuSort()
83    {
84        return 2;
85    }
86
87    /**
88     * @return int current start value for pageination
89     */
90    public function getStart()
91    {
92        return $this->start;
93    }
94
95    /**
96     * @return int number of users per page
97     */
98    public function getPagesize()
99    {
100        return $this->pagesize;
101    }
102
103    /**
104     * @param boolean $lastdisabled
105     */
106    public function setLastdisabled($lastdisabled)
107    {
108        $this->lastdisabled = $lastdisabled;
109    }
110
111    /**
112     * Handle user request
113     *
114     * @return bool
115     */
116    public function handle()
117    {
118        global $INPUT;
119        if (is_null($this->auth)) return false;
120
121        // extract the command and any specific parameters
122        // submit button name is of the form - fn[cmd][param(s)]
123        $fn   = $INPUT->param('fn');
124
125        if (is_array($fn)) {
126            $cmd = key($fn);
127            $param = is_array($fn[$cmd]) ? key($fn[$cmd]) : null;
128        } else {
129            $cmd = $fn;
130            $param = null;
131        }
132
133        if ($cmd != "search") {
134            $this->start = $INPUT->int('start', 0);
135            $this->filter = $this->retrieveFilter();
136        }
137
138        switch ($cmd) {
139            case "add":
140                $this->addUser();
141                break;
142            case "delete":
143                $this->deleteUser();
144                break;
145            case "modify":
146                $this->modifyUser();
147                break;
148            case "edit":
149                $this->editUser($param);
150                break;
151            case "search":
152                $this->setFilter($param);
153                            $this->start = 0;
154                break;
155            case "export":
156                $this->exportCSV();
157                break;
158            case "import":
159                $this->importCSV();
160                break;
161            case "importfails":
162                $this->downloadImportFailures();
163                break;
164        }
165
166        $this->users_total = $this->auth->canDo('getUserCount') ? $this->auth->getUserCount($this->filter) : -1;
167
168        // page handling
169        switch ($cmd) {
170            case 'start':
171                $this->start = 0;
172                break;
173            case 'prev':
174                $this->start -= $this->pagesize;
175                break;
176            case 'next':
177                $this->start += $this->pagesize;
178                break;
179            case 'last':
180                $this->start = $this->users_total;
181                break;
182        }
183        $this->validatePagination();
184        return true;
185    }
186
187    /**
188     * Output appropriate html
189     *
190     * @return bool
191     */
192    public function html()
193    {
194        global $ID;
195
196        if (is_null($this->auth)) {
197            print $this->lang['badauth'];
198            return false;
199        }
200
201        $user_list = $this->auth->retrieveUsers($this->start, $this->pagesize, $this->filter);
202
203        $page_buttons = $this->pagination();
204        $delete_disable = $this->auth->canDo('delUser') ? '' : 'disabled="disabled"';
205
206        $editable = $this->auth->canDo('UserMod');
207        $export_label = empty($this->filter) ? $this->lang['export_all'] : $this->lang['export_filtered'];
208
209        print $this->locale_xhtml('intro');
210        print $this->locale_xhtml('list');
211
212        ptln("<div id=\"user__manager\">");
213        ptln("<div class=\"level2\">");
214
215        if ($this->users_total > 0) {
216            ptln(
217                "<p>" . sprintf(
218                    $this->lang['summary'],
219                    $this->start + 1,
220                    $this->last,
221                    $this->users_total,
222                    $this->auth->getUserCount()
223                ) . "</p>"
224            );
225        } else {
226            if ($this->users_total < 0) {
227                $allUserTotal = 0;
228            } else {
229                $allUserTotal = $this->auth->getUserCount();
230            }
231            ptln("<p>".sprintf($this->lang['nonefound'], $allUserTotal)."</p>");
232        }
233        ptln("<form action=\"".wl($ID)."\" method=\"post\">");
234        formSecurityToken();
235        ptln("  <div class=\"table\">");
236        ptln("  <table class=\"inline\">");
237        ptln("    <thead>");
238        ptln("      <tr>");
239        ptln("        <th>&#160;</th>
240            <th>".$this->lang["user_id"]."</th>
241            <th>".$this->lang["user_name"]."</th>
242            <th>".$this->lang["user_mail"]."</th>
243            <th>".$this->lang["user_groups"]."</th>");
244        ptln("      </tr>");
245
246        ptln("      <tr>");
247        ptln("        <td class=\"rightalign\"><input type=\"image\" src=\"".
248             self::IMAGE_DIR."search.png\" name=\"fn[search][new]\" title=\"".
249             $this->lang['search_prompt']."\" alt=\"".$this->lang['search']."\" class=\"button\" /></td>");
250        ptln("        <td><input type=\"text\" name=\"userid\" class=\"edit\" value=\"".
251             $this->htmlFilter('user')."\" /></td>");
252        ptln("        <td><input type=\"text\" name=\"username\" class=\"edit\" value=\"".
253             $this->htmlFilter('name')."\" /></td>");
254        ptln("        <td><input type=\"text\" name=\"usermail\" class=\"edit\" value=\"".
255             $this->htmlFilter('mail')."\" /></td>");
256        ptln("        <td><input type=\"text\" name=\"usergroups\" class=\"edit\" value=\"".
257             $this->htmlFilter('grps')."\" /></td>");
258        ptln("      </tr>");
259        ptln("    </thead>");
260
261        if ($this->users_total) {
262            ptln("    <tbody>");
263            foreach ($user_list as $user => $userinfo) {
264                extract($userinfo);
265                /**
266                 * @var string $name
267                 * @var string $pass
268                 * @var string $mail
269                 * @var array  $grps
270                 */
271                $groups = implode(', ', $grps);
272                ptln("    <tr class=\"user_info\">");
273                ptln("      <td class=\"centeralign\"><input type=\"checkbox\" name=\"delete[".hsc($user).
274                     "]\" ".$delete_disable." /></td>");
275                if ($editable) {
276                    ptln("    <td><a href=\"".wl($ID, ['fn[edit]['.$user.']' => 1,
277                            'do' => 'admin',
278                            'page' => 'usermanager',
279                            'sectok' => getSecurityToken()]).
280                         "\" title=\"".$this->lang['edit_prompt']."\">".hsc($user)."</a></td>");
281                } else {
282                    ptln("    <td>".hsc($user)."</td>");
283                }
284                ptln("      <td>".hsc($name)."</td><td>".hsc($mail)."</td><td>".hsc($groups)."</td>");
285                ptln("    </tr>");
286            }
287            ptln("    </tbody>");
288        }
289
290        ptln("    <tbody>");
291        ptln("      <tr><td colspan=\"5\" class=\"centeralign\">");
292        ptln("        <span class=\"medialeft\">");
293        ptln("          <button type=\"submit\" name=\"fn[delete]\" id=\"usrmgr__del\" ".$delete_disable.">".
294             $this->lang['delete_selected']."</button>");
295        ptln("        </span>");
296        ptln("        <span class=\"mediaright\">");
297        ptln("          <button type=\"submit\" name=\"fn[start]\" ".$page_buttons['start'].">".
298             $this->lang['start']."</button>");
299        ptln("          <button type=\"submit\" name=\"fn[prev]\" ".$page_buttons['prev'].">".
300             $this->lang['prev']."</button>");
301        ptln("          <button type=\"submit\" name=\"fn[next]\" ".$page_buttons['next'].">".
302             $this->lang['next']."</button>");
303        ptln("          <button type=\"submit\" name=\"fn[last]\" ".$page_buttons['last'].">".
304             $this->lang['last']."</button>");
305        ptln("        </span>");
306        if (!empty($this->filter)) {
307            ptln("    <button type=\"submit\" name=\"fn[search][clear]\">".$this->lang['clear']."</button>");
308        }
309        ptln("        <button type=\"submit\" name=\"fn[export]\">".$export_label."</button>");
310        ptln("        <input type=\"hidden\" name=\"do\"    value=\"admin\" />");
311        ptln("        <input type=\"hidden\" name=\"page\"  value=\"usermanager\" />");
312
313        $this->htmlFilterSettings(2);
314
315        ptln("      </td></tr>");
316        ptln("    </tbody>");
317        ptln("  </table>");
318        ptln("  </div>");
319
320        ptln("</form>");
321        ptln("</div>");
322
323        $style = $this->edit_user ? " class=\"edit_user\"" : "";
324
325        if ($this->auth->canDo('addUser')) {
326            ptln("<div".$style.">");
327            print $this->locale_xhtml('add');
328            ptln("  <div class=\"level2\">");
329
330            $this->htmlUserForm('add', null, [], 4);
331
332            ptln("  </div>");
333            ptln("</div>");
334        }
335
336        if ($this->edit_user  && $this->auth->canDo('UserMod')) {
337            ptln("<div".$style." id=\"scroll__here\">");
338            print $this->locale_xhtml('edit');
339            ptln("  <div class=\"level2\">");
340
341            $this->htmlUserForm('modify', $this->edit_user, $this->edit_userdata, 4);
342
343            ptln("  </div>");
344            ptln("</div>");
345        }
346
347        if ($this->auth->canDo('addUser')) {
348            $this->htmlImportForm();
349        }
350        ptln("</div>");
351        return true;
352    }
353
354    /**
355     * User Manager is only available if the auth backend supports it
356     *
357     * @inheritdoc
358     * @return bool
359     */
360    public function isAccessibleByCurrentUser()
361    {
362        /** @var AuthPlugin $auth */
363        global $auth;
364        if (!$auth || !$auth->canDo('getUsers') ) {
365            return false;
366        }
367
368        return parent::isAccessibleByCurrentUser();
369    }
370
371
372    /**
373     * Display form to add or modify a user
374     *
375     * @param string $cmd 'add' or 'modify'
376     * @param string $user id of user
377     * @param array  $userdata array with name, mail, pass and grps
378     * @param int    $indent
379     */
380    protected function htmlUserForm($cmd, $user = '', $userdata = [], $indent = 0)
381    {
382        global $conf;
383        global $ID;
384        global $lang;
385        $name = '';
386        $mail = '';
387        $groups = '';
388        $notes = [];
389
390        if ($user) {
391            extract($userdata);
392            if (!empty($grps)) $groups = implode(',', $grps);
393        } else {
394            $notes[] = sprintf($this->lang['note_group'], $conf['defaultgroup']);
395        }
396
397        ptln("<form action=\"".wl($ID)."\" method=\"post\">", $indent);
398        formSecurityToken();
399        ptln("  <div class=\"table\">", $indent);
400        ptln("  <table class=\"inline\">", $indent);
401        ptln("    <thead>", $indent);
402        ptln("      <tr><th>".$this->lang["field"]."</th><th>".$this->lang["value"]."</th></tr>", $indent);
403        ptln("    </thead>", $indent);
404        ptln("    <tbody>", $indent);
405
406        $this->htmlInputField(
407            $cmd . "_userid",
408            "userid",
409            $this->lang["user_id"],
410            $user,
411            $this->auth->canDo("modLogin"),
412            true,
413            $indent + 6
414        );
415        $this->htmlInputField(
416            $cmd . "_userpass",
417            "userpass",
418            $this->lang["user_pass"],
419            "",
420            $this->auth->canDo("modPass"),
421            false,
422            $indent + 6
423        );
424        $this->htmlInputField(
425            $cmd . "_userpass2",
426            "userpass2",
427            $lang["passchk"],
428            "",
429            $this->auth->canDo("modPass"),
430            false,
431            $indent + 6
432        );
433        $this->htmlInputField(
434            $cmd . "_username",
435            "username",
436            $this->lang["user_name"],
437            $name,
438            $this->auth->canDo("modName"),
439            true,
440            $indent + 6
441        );
442        $this->htmlInputField(
443            $cmd . "_usermail",
444            "usermail",
445            $this->lang["user_mail"],
446            $mail,
447            $this->auth->canDo("modMail"),
448            true,
449            $indent + 6
450        );
451        $this->htmlInputField(
452            $cmd . "_usergroups",
453            "usergroups",
454            $this->lang["user_groups"],
455            $groups,
456            $this->auth->canDo("modGroups"),
457            false,
458            $indent + 6
459        );
460
461        if ($this->auth->canDo("modPass")) {
462            if ($cmd == 'add') {
463                $notes[] = $this->lang['note_pass'];
464            }
465            if ($user) {
466                $notes[] = $this->lang['note_notify'];
467            }
468
469            ptln("<tr><td><label for=\"".$cmd."_usernotify\" >".
470                 $this->lang["user_notify"].": </label></td>
471                 <td><input type=\"checkbox\" id=\"".$cmd."_usernotify\" name=\"usernotify\" value=\"1\" />
472                 </td></tr>", $indent);
473        }
474
475        ptln("    </tbody>", $indent);
476        ptln("    <tbody>", $indent);
477        ptln("      <tr>", $indent);
478        ptln("        <td colspan=\"2\">", $indent);
479        ptln("          <input type=\"hidden\" name=\"do\"    value=\"admin\" />", $indent);
480        ptln("          <input type=\"hidden\" name=\"page\"  value=\"usermanager\" />", $indent);
481
482        // save current $user, we need this to access details if the name is changed
483        if ($user)
484          ptln("          <input type=\"hidden\" name=\"userid_old\"  value=\"".hsc($user)."\" />", $indent);
485
486        $this->htmlFilterSettings($indent+10);
487
488        ptln("          <button type=\"submit\" name=\"fn[".$cmd."]\">".$this->lang[$cmd]."</button>", $indent);
489        ptln("        </td>", $indent);
490        ptln("      </tr>", $indent);
491        ptln("    </tbody>", $indent);
492        ptln("  </table>", $indent);
493
494        if ($notes) {
495            ptln("    <ul class=\"notes\">");
496            foreach ($notes as $note) {
497                ptln("      <li><span class=\"li\">".$note."</li>", $indent);
498            }
499            ptln("    </ul>");
500        }
501        ptln("  </div>", $indent);
502        ptln("</form>", $indent);
503    }
504
505    /**
506     * Prints a inputfield
507     *
508     * @param string $id
509     * @param string $name
510     * @param string $label
511     * @param string $value
512     * @param bool   $cando whether auth backend is capable to do this action
513     * @param bool   $required is this field required?
514     * @param int $indent
515     */
516    protected function htmlInputField($id, $name, $label, $value, $cando, $required, $indent = 0)
517    {
518        $class = $cando ? '' : ' class="disabled"';
519        echo str_pad('', $indent);
520
521        if ($name == 'userpass' || $name == 'userpass2') {
522            $fieldtype = 'password';
523            $autocomp  = 'autocomplete="off"';
524        } elseif ($name == 'usermail') {
525            $fieldtype = 'email';
526            $autocomp  = '';
527        } else {
528            $fieldtype = 'text';
529            $autocomp  = '';
530        }
531        $value = hsc($value);
532
533        echo "<tr $class>";
534        echo "<td><label for=\"$id\" >$label: </label></td>";
535        echo "<td>";
536        if ($cando) {
537            $req = '';
538            if ($required) $req = 'required="required"';
539            echo "<input type=\"$fieldtype\" id=\"$id\" name=\"$name\"
540                  value=\"$value\" class=\"edit\" $autocomp $req />";
541        } else {
542            echo "<input type=\"hidden\" name=\"$name\" value=\"$value\" />";
543            echo "<input type=\"$fieldtype\" id=\"$id\" name=\"$name\"
544                  value=\"$value\" class=\"edit disabled\" disabled=\"disabled\" />";
545        }
546        echo "</td>";
547        echo "</tr>";
548    }
549
550    /**
551     * Returns htmlescaped filter value
552     *
553     * @param string $key name of search field
554     * @return string html escaped value
555     */
556    protected function htmlFilter($key)
557    {
558        if (empty($this->filter)) return '';
559        return (isset($this->filter[$key]) ? hsc($this->filter[$key]) : '');
560    }
561
562    /**
563     * Print hidden inputs with the current filter values
564     *
565     * @param int $indent
566     */
567    protected function htmlFilterSettings($indent = 0)
568    {
569
570        ptln("<input type=\"hidden\" name=\"start\" value=\"".$this->start."\" />", $indent);
571
572        foreach ($this->filter as $key => $filter) {
573            ptln("<input type=\"hidden\" name=\"filter[".$key."]\" value=\"".hsc($filter)."\" />", $indent);
574        }
575    }
576
577    /**
578     * Print import form and summary of previous import
579     *
580     * @param int $indent
581     */
582    protected function htmlImportForm($indent = 0)
583    {
584        global $ID;
585
586        $failure_download_link = wl($ID, ['do'=>'admin', 'page'=>'usermanager', 'fn[importfails]'=>1]);
587
588        ptln('<div class="level2 import_users">', $indent);
589        print $this->locale_xhtml('import');
590        ptln('  <form action="'.wl($ID).'" method="post" enctype="multipart/form-data">', $indent);
591        formSecurityToken();
592        ptln('    <label>'.$this->lang['import_userlistcsv'].'<input type="file" name="import" /></label>', $indent);
593        ptln('    <button type="submit" name="fn[import]">'.$this->lang['import'].'</button>', $indent);
594        ptln('    <input type="hidden" name="do"    value="admin" />', $indent);
595        ptln('    <input type="hidden" name="page"  value="usermanager" />', $indent);
596
597        $this->htmlFilterSettings($indent+4);
598        ptln('  </form>', $indent);
599        ptln('</div>');
600
601        // list failures from the previous import
602        if ($this->import_failures) {
603            $digits = strlen(count($this->import_failures));
604            ptln('<div class="level3 import_failures">', $indent);
605            ptln('  <h3>'.$this->lang['import_header'].'</h3>');
606            ptln('  <table class="import_failures">', $indent);
607            ptln('    <thead>', $indent);
608            ptln('      <tr>', $indent);
609            ptln('        <th class="line">'.$this->lang['line'].'</th>', $indent);
610            ptln('        <th class="error">'.$this->lang['error'].'</th>', $indent);
611            ptln('        <th class="userid">'.$this->lang['user_id'].'</th>', $indent);
612            ptln('        <th class="username">'.$this->lang['user_name'].'</th>', $indent);
613            ptln('        <th class="usermail">'.$this->lang['user_mail'].'</th>', $indent);
614            ptln('        <th class="usergroups">'.$this->lang['user_groups'].'</th>', $indent);
615            ptln('      </tr>', $indent);
616            ptln('    </thead>', $indent);
617            ptln('    <tbody>', $indent);
618            foreach ($this->import_failures as $line => $failure) {
619                ptln('      <tr>', $indent);
620                ptln('        <td class="lineno"> '.sprintf('%0'.$digits.'d', $line).' </td>', $indent);
621                ptln('        <td class="error">' .$failure['error'].' </td>', $indent);
622                ptln('        <td class="field userid"> '.hsc($failure['user'][0]).' </td>', $indent);
623                ptln('        <td class="field username"> '.hsc($failure['user'][2]).' </td>', $indent);
624                ptln('        <td class="field usermail"> '.hsc($failure['user'][3]).' </td>', $indent);
625                ptln('        <td class="field usergroups"> '.hsc($failure['user'][4]).' </td>', $indent);
626                ptln('      </tr>', $indent);
627            }
628            ptln('    </tbody>', $indent);
629            ptln('  </table>', $indent);
630            ptln('  <p><a href="'.$failure_download_link.'">'.$this->lang['import_downloadfailures'].'</a></p>');
631            ptln('</div>');
632        }
633    }
634
635    /**
636     * Add an user to auth backend
637     *
638     * @return bool whether succesful
639     */
640    protected function addUser()
641    {
642        global $INPUT;
643        if (!checkSecurityToken()) return false;
644        if (!$this->auth->canDo('addUser')) return false;
645
646        [$user, $pass, $name, $mail, $grps, $passconfirm] = $this->retrieveUser();
647        if (empty($user)) return false;
648
649        if ($this->auth->canDo('modPass')) {
650            if (empty($pass)) {
651                if ($INPUT->has('usernotify')) {
652                    $pass = auth_pwgen($user);
653                } else {
654                    msg($this->lang['add_fail'], -1);
655                    msg($this->lang['addUser_error_missing_pass'], -1);
656                    return false;
657                }
658            } elseif (!$this->verifyPassword($pass, $passconfirm)) {
659                msg($this->lang['add_fail'], -1);
660                msg($this->lang['addUser_error_pass_not_identical'], -1);
661                return false;
662            }
663        } elseif (!empty($pass)) {
664            msg($this->lang['add_fail'], -1);
665            msg($this->lang['addUser_error_modPass_disabled'], -1);
666            return false;
667        }
668
669        if ($this->auth->canDo('modName')) {
670            if (empty($name)) {
671                msg($this->lang['add_fail'], -1);
672                msg($this->lang['addUser_error_name_missing'], -1);
673                return false;
674            }
675        } elseif (!empty($name)) {
676            msg($this->lang['add_fail'], -1);
677            msg($this->lang['addUser_error_modName_disabled'], -1);
678            return false;
679        }
680
681        if ($this->auth->canDo('modMail')) {
682            if (empty($mail)) {
683                msg($this->lang['add_fail'], -1);
684                msg($this->lang['addUser_error_mail_missing'], -1);
685                return false;
686            }
687        } elseif (!empty($mail)) {
688            msg($this->lang['add_fail'], -1);
689            msg($this->lang['addUser_error_modMail_disabled'], -1);
690            return false;
691        }
692
693        if ($ok = $this->auth->triggerUserMod('create', [$user, $pass, $name, $mail, $grps])) {
694            msg($this->lang['add_ok'], 1);
695
696            if ($INPUT->has('usernotify') && $pass) {
697                $this->notifyUser($user, $pass);
698            }
699        } else {
700            msg($this->lang['add_fail'], -1);
701            msg($this->lang['addUser_error_create_event_failed'], -1);
702        }
703
704        return $ok;
705    }
706
707    /**
708     * Delete user from auth backend
709     *
710     * @return bool whether succesful
711     */
712    protected function deleteUser()
713    {
714        global $conf, $INPUT;
715
716        if (!checkSecurityToken()) return false;
717        if (!$this->auth->canDo('delUser')) return false;
718
719        $selected = $INPUT->arr('delete');
720        if (empty($selected)) return false;
721        $selected = array_keys($selected);
722
723        if (in_array($_SERVER['REMOTE_USER'], $selected)) {
724            msg("You can't delete yourself!", -1);
725            return false;
726        }
727
728        $count = $this->auth->triggerUserMod('delete', [$selected]);
729        if ($count == count($selected)) {
730            $text = str_replace('%d', $count, $this->lang['delete_ok']);
731            msg("$text.", 1);
732        } else {
733            $part1 = str_replace('%d', $count, $this->lang['delete_ok']);
734            $part2 = str_replace('%d', (count($selected)-$count), $this->lang['delete_fail']);
735            msg("$part1, $part2", -1);
736        }
737
738        // invalidate all sessions
739        io_saveFile($conf['cachedir'].'/sessionpurge', time());
740
741        return true;
742    }
743
744    /**
745     * Edit user (a user has been selected for editing)
746     *
747     * @param string $param id of the user
748     * @return bool whether succesful
749     */
750    protected function editUser($param)
751    {
752        if (!checkSecurityToken()) return false;
753        if (!$this->auth->canDo('UserMod')) return false;
754        $user = $this->auth->cleanUser(preg_replace('/.*[:\/]/', '', $param));
755        $userdata = $this->auth->getUserData($user);
756
757        // no user found?
758        if (!$userdata) {
759            msg($this->lang['edit_usermissing'], -1);
760            return false;
761        }
762
763        $this->edit_user = $user;
764        $this->edit_userdata = $userdata;
765
766        return true;
767    }
768
769    /**
770     * Modify user in the auth backend (modified user data has been recieved)
771     *
772     * @return bool whether succesful
773     */
774    protected function modifyUser()
775    {
776        global $conf, $INPUT;
777
778        if (!checkSecurityToken()) return false;
779        if (!$this->auth->canDo('UserMod')) return false;
780
781        // get currently valid  user data
782        $olduser = $this->auth->cleanUser(preg_replace('/.*[:\/]/', '', $INPUT->str('userid_old')));
783        $oldinfo = $this->auth->getUserData($olduser);
784
785        // get new user data subject to change
786        [$newuser, $newpass, $newname, $newmail, $newgrps, $passconfirm] = $this->retrieveUser();
787        if (empty($newuser)) return false;
788
789        $changes = [];
790        if ($newuser != $olduser) {
791            if (!$this->auth->canDo('modLogin')) {        // sanity check, shouldn't be possible
792                msg($this->lang['update_fail'], -1);
793                return false;
794            }
795
796            // check if $newuser already exists
797            if ($this->auth->getUserData($newuser)) {
798                msg(sprintf($this->lang['update_exists'], $newuser), -1);
799                $re_edit = true;
800            } else {
801                $changes['user'] = $newuser;
802            }
803        }
804        if ($this->auth->canDo('modPass')) {
805            if ($newpass || $passconfirm) {
806                if ($this->verifyPassword($newpass, $passconfirm)) {
807                    $changes['pass'] = $newpass;
808                } else {
809                    return false;
810                }
811            } elseif ($INPUT->has('usernotify')) {
812                // no new password supplied, check if we need to generate one (or it stays unchanged)
813                $changes['pass'] = auth_pwgen($olduser);
814            }
815        }
816
817        if (!empty($newname) && $this->auth->canDo('modName') && $newname != $oldinfo['name']) {
818            $changes['name'] = $newname;
819        }
820        if (!empty($newmail) && $this->auth->canDo('modMail') && $newmail != $oldinfo['mail']) {
821            $changes['mail'] = $newmail;
822        }
823        if (!empty($newgrps) && $this->auth->canDo('modGroups') && $newgrps != $oldinfo['grps']) {
824            $changes['grps'] = $newgrps;
825        }
826
827        if ($ok = $this->auth->triggerUserMod('modify', [$olduser, $changes])) {
828            msg($this->lang['update_ok'], 1);
829
830            if ($INPUT->has('usernotify') && !empty($changes['pass'])) {
831                $notify = empty($changes['user']) ? $olduser : $newuser;
832                $this->notifyUser($notify, $changes['pass']);
833            }
834
835            // invalidate all sessions
836            io_saveFile($conf['cachedir'].'/sessionpurge', time());
837        } else {
838            msg($this->lang['update_fail'], -1);
839        }
840
841        if (!empty($re_edit)) {
842            $this->editUser($olduser);
843        }
844
845        return $ok;
846    }
847
848    /**
849     * Send password change notification email
850     *
851     * @param string $user         id of user
852     * @param string $password     plain text
853     * @param bool   $status_alert whether status alert should be shown
854     * @return bool whether succesful
855     */
856    protected function notifyUser($user, $password, $status_alert = true)
857    {
858
859        if ($sent = auth_sendPassword($user, $password)) {
860            if ($status_alert) {
861                msg($this->lang['notify_ok'], 1);
862            }
863        } elseif ($status_alert) {
864            msg($this->lang['notify_fail'], -1);
865        }
866
867        return $sent;
868    }
869
870    /**
871     * Verify password meets minimum requirements
872     * :TODO: extend to support password strength
873     *
874     * @param string  $password   candidate string for new password
875     * @param string  $confirm    repeated password for confirmation
876     * @return bool   true if meets requirements, false otherwise
877     */
878    protected function verifyPassword($password, $confirm)
879    {
880        global $lang;
881
882        if (empty($password) && empty($confirm)) {
883            return false;
884        }
885
886        if ($password !== $confirm) {
887            msg($lang['regbadpass'], -1);
888            return false;
889        }
890
891        // :TODO: test password for required strength
892
893        // if we make it this far the password is good
894        return true;
895    }
896
897    /**
898     * Retrieve & clean user data from the form
899     *
900     * @param bool $clean whether the cleanUser method of the authentication backend is applied
901     * @return array (user, password, full name, email, array(groups))
902     */
903    protected function retrieveUser($clean = true)
904    {
905        /** @var AuthPlugin $auth */
906        global $auth;
907        global $INPUT;
908
909        $user = [];
910        $user[0] = ($clean) ? $auth->cleanUser($INPUT->str('userid')) : $INPUT->str('userid');
911        $user[1] = $INPUT->str('userpass');
912        $user[2] = $INPUT->str('username');
913        $user[3] = $INPUT->str('usermail');
914        $user[4] = explode(',', $INPUT->str('usergroups'));
915        $user[5] = $INPUT->str('userpass2');                // repeated password for confirmation
916
917        $user[4] = array_map('trim', $user[4]);
918        if ($clean) $user[4] = array_map([$auth, 'cleanGroup'], $user[4]);
919        $user[4] = array_filter($user[4]);
920        $user[4] = array_unique($user[4]);
921        if ($user[4] === []) $user[4] = null;
922
923        return $user;
924    }
925
926    /**
927     * Set the filter with the current search terms or clear the filter
928     *
929     * @param string $op 'new' or 'clear'
930     */
931    protected function setFilter($op)
932    {
933
934        $this->filter = [];
935
936        if ($op == 'new') {
937            [$user, /* pass */, $name, $mail, $grps] = $this->retrieveUser(false);
938
939            if (!empty($user)) $this->filter['user'] = $user;
940            if (!empty($name)) $this->filter['name'] = $name;
941            if (!empty($mail)) $this->filter['mail'] = $mail;
942            if (!empty($grps)) $this->filter['grps'] = implode('|', $grps);
943        }
944    }
945
946    /**
947     * Get the current search terms
948     *
949     * @return array
950     */
951    protected function retrieveFilter()
952    {
953        global $INPUT;
954
955        $t_filter = $INPUT->arr('filter');
956
957        // messy, but this way we ensure we aren't getting any additional crap from malicious users
958        $filter = [];
959
960        if (isset($t_filter['user'])) $filter['user'] = $t_filter['user'];
961        if (isset($t_filter['name'])) $filter['name'] = $t_filter['name'];
962        if (isset($t_filter['mail'])) $filter['mail'] = $t_filter['mail'];
963        if (isset($t_filter['grps'])) $filter['grps'] = $t_filter['grps'];
964
965        return $filter;
966    }
967
968    /**
969     * Validate and improve the pagination values
970     */
971    protected function validatePagination()
972    {
973
974        if ($this->start >= $this->users_total) {
975            $this->start = $this->users_total - $this->pagesize;
976        }
977        if ($this->start < 0) $this->start = 0;
978
979        $this->last = min($this->users_total, $this->start + $this->pagesize);
980    }
981
982    /**
983     * Return an array of strings to enable/disable pagination buttons
984     *
985     * @return array with enable/disable attributes
986     */
987    protected function pagination()
988    {
989
990        $disabled = 'disabled="disabled"';
991
992        $buttons = [];
993        $buttons['start'] = $buttons['prev'] = ($this->start == 0) ? $disabled : '';
994
995        if ($this->users_total == -1) {
996            $buttons['last'] = $disabled;
997            $buttons['next'] = '';
998        } else {
999            $buttons['last'] = $buttons['next'] =
1000                (($this->start + $this->pagesize) >= $this->users_total) ? $disabled : '';
1001        }
1002
1003        if ($this->lastdisabled) {
1004            $buttons['last'] = $disabled;
1005        }
1006
1007        return $buttons;
1008    }
1009
1010    /**
1011     * Export a list of users in csv format using the current filter criteria
1012     */
1013    protected function exportCSV()
1014    {
1015        // list of users for export - based on current filter criteria
1016        $user_list = $this->auth->retrieveUsers(0, 0, $this->filter);
1017        $column_headings = [
1018            $this->lang["user_id"],
1019            $this->lang["user_name"],
1020            $this->lang["user_mail"],
1021            $this->lang["user_groups"]
1022        ];
1023
1024        // ==============================================================================================
1025        // GENERATE OUTPUT
1026        // normal headers for downloading...
1027        header('Content-type: text/csv;charset=utf-8');
1028        header('Content-Disposition: attachment; filename="wikiusers.csv"');
1029#       // for debugging assistance, send as text plain to the browser
1030#       header('Content-type: text/plain;charset=utf-8');
1031
1032        // output the csv
1033        $fd = fopen('php://output', 'w');
1034        fputcsv($fd, $column_headings);
1035        foreach ($user_list as $user => $info) {
1036            $line = [$user, $info['name'], $info['mail'], implode(',', $info['grps'])];
1037            fputcsv($fd, $line);
1038        }
1039        fclose($fd);
1040        if (defined('DOKU_UNITTEST')) {
1041            return;
1042        }
1043
1044        die;
1045    }
1046
1047    /**
1048     * Import a file of users in csv format
1049     *
1050     * csv file should have 4 columns, user_id, full name, email, groups (comma separated)
1051     *
1052     * @return bool whether successful
1053     */
1054    protected function importCSV()
1055    {
1056        // check we are allowed to add users
1057        if (!checkSecurityToken()) return false;
1058        if (!$this->auth->canDo('addUser')) return false;
1059
1060        // check file uploaded ok.
1061        if (empty($_FILES['import']['size']) ||
1062            !empty($_FILES['import']['error']) && $this->isUploadedFile($_FILES['import']['tmp_name'])
1063        ) {
1064            msg($this->lang['import_error_upload'], -1);
1065            return false;
1066        }
1067        // retrieve users from the file
1068        $this->import_failures = [];
1069        $import_success_count = 0;
1070        $import_fail_count = 0;
1071        $line = 0;
1072        $fd = fopen($_FILES['import']['tmp_name'], 'r');
1073        if ($fd) {
1074            while ($csv = fgets($fd)) {
1075                if (!Clean::isUtf8($csv)) {
1076                    $csv = utf8_encode($csv);
1077                }
1078                $raw = str_getcsv($csv);
1079                $error = '';                        // clean out any errors from the previous line
1080                // data checks...
1081                if (1 == ++$line) {
1082                    if ($raw[0] == 'user_id' || $raw[0] == $this->lang['user_id']) continue;    // skip headers
1083                }
1084                if (count($raw) < 4) {                                        // need at least four fields
1085                    $import_fail_count++;
1086                    $error = sprintf($this->lang['import_error_fields'], count($raw));
1087                    $this->import_failures[$line] = ['error' => $error, 'user' => $raw, 'orig' => $csv];
1088                    continue;
1089                }
1090                array_splice($raw, 1, 0, auth_pwgen());                          // splice in a generated password
1091                $clean = $this->cleanImportUser($raw, $error);
1092                if ($clean && $this->importUser($clean, $error)) {
1093                    $sent = $this->notifyUser($clean[0], $clean[1], false);
1094                    if (!$sent) {
1095                        msg(sprintf($this->lang['import_notify_fail'], $clean[0], $clean[3]), -1);
1096                    }
1097                    $import_success_count++;
1098                } else {
1099                    $import_fail_count++;
1100                    array_splice($raw, 1, 1);                                  // remove the spliced in password
1101                    $this->import_failures[$line] = ['error' => $error, 'user' => $raw, 'orig' => $csv];
1102                }
1103            }
1104            msg(
1105                sprintf(
1106                    $this->lang['import_success_count'],
1107                    ($import_success_count + $import_fail_count),
1108                    $import_success_count
1109                ),
1110                ($import_success_count ? 1 : -1)
1111            );
1112            if ($import_fail_count) {
1113                msg(sprintf($this->lang['import_failure_count'], $import_fail_count), -1);
1114            }
1115        } else {
1116            msg($this->lang['import_error_readfail'], -1);
1117        }
1118
1119        // save import failures into the session
1120        if (!headers_sent()) {
1121            session_start();
1122            $_SESSION['import_failures'] = $this->import_failures;
1123            session_write_close();
1124        }
1125        return true;
1126    }
1127
1128    /**
1129     * Returns cleaned user data
1130     *
1131     * @param array $candidate raw values of line from input file
1132     * @param string $error
1133     * @return array|false cleaned data or false
1134     */
1135    protected function cleanImportUser($candidate, &$error)
1136    {
1137        global $INPUT;
1138
1139        // FIXME kludgy ....
1140        $INPUT->set('userid', $candidate[0]);
1141        $INPUT->set('userpass', $candidate[1]);
1142        $INPUT->set('username', $candidate[2]);
1143        $INPUT->set('usermail', $candidate[3]);
1144        $INPUT->set('usergroups', $candidate[4]);
1145
1146        $cleaned = $this->retrieveUser();
1147        [$user, /* pass */ , $name, $mail, /* grps */ ] = $cleaned;
1148        if (empty($user)) {
1149            $error = $this->lang['import_error_baduserid'];
1150            return false;
1151        }
1152
1153        // no need to check password, handled elsewhere
1154
1155        if (!($this->auth->canDo('modName') xor empty($name))) {
1156            $error = $this->lang['import_error_badname'];
1157            return false;
1158        }
1159
1160        if ($this->auth->canDo('modMail')) {
1161            if (empty($mail) || !mail_isvalid($mail)) {
1162                $error = $this->lang['import_error_badmail'];
1163                return false;
1164            }
1165        } elseif (!empty($mail)) {
1166            $error = $this->lang['import_error_badmail'];
1167            return false;
1168        }
1169
1170        return $cleaned;
1171    }
1172
1173    /**
1174     * Adds imported user to auth backend
1175     *
1176     * Required a check of canDo('addUser') before
1177     *
1178     * @param array  $user   data of user
1179     * @param string &$error reference catched error message
1180     * @return bool whether successful
1181     */
1182    protected function importUser($user, &$error)
1183    {
1184        if (!$this->auth->triggerUserMod('create', $user)) {
1185            $error = $this->lang['import_error_create'];
1186            return false;
1187        }
1188
1189        return true;
1190    }
1191
1192    /**
1193     * Downloads failures as csv file
1194     */
1195    protected function downloadImportFailures()
1196    {
1197
1198        // ==============================================================================================
1199        // GENERATE OUTPUT
1200        // normal headers for downloading...
1201        header('Content-type: text/csv;charset=utf-8');
1202        header('Content-Disposition: attachment; filename="importfails.csv"');
1203#       // for debugging assistance, send as text plain to the browser
1204#       header('Content-type: text/plain;charset=utf-8');
1205
1206        // output the csv
1207        $fd = fopen('php://output', 'w');
1208        foreach ($this->import_failures as $fail) {
1209            fwrite($fd, $fail['orig']);
1210        }
1211        fclose($fd);
1212        die;
1213    }
1214
1215    /**
1216     * wrapper for is_uploaded_file to facilitate overriding by test suite
1217     *
1218     * @param string $file filename
1219     * @return bool
1220     */
1221    protected function isUploadedFile($file)
1222    {
1223        return is_uploaded_file($file);
1224    }
1225}
1226