xref: /dokuwiki/lib/plugins/usermanager/admin.php (revision 2a7fef40a3ec5483cb6f84418251f8b157c01c15)
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
14/**
15 * All DokuWiki plugins to extend the admin function
16 * need to inherit from this class
17 */
18class admin_plugin_usermanager extends DokuWiki_Admin_Plugin
19{
20    const IMAGE_DIR = DOKU_BASE.'lib/plugins/usermanager/images/';
21
22    protected $auth = null;        // auth object
23    protected $users_total = 0;     // number of registered users
24    protected $filter = array();   // user selection filter(s)
25    protected $start = 0;          // index of first user to be displayed
26    protected $last = 0;           // index of the last user to be displayed
27    protected $pagesize = 20;      // number of users to list on one page
28    protected $edit_user = '';     // set to user selected for editing
29    protected $edit_userdata = array();
30    protected $disabled = '';      // if disabled set to explanatory string
31    protected $import_failures = array();
32    protected $lastdisabled = false; // set to true if last user is unknown and last button is hence buggy
33
34    /**
35     * Constructor
36     */
37    public function __construct()
38    {
39        /** @var DokuWiki_Auth_Plugin $auth */
40        global $auth;
41
42        $this->setupLocale();
43
44        if (!isset($auth)) {
45            $this->disabled = $this->lang['noauth'];
46        } elseif (!$auth->canDo('getUsers')) {
47            $this->disabled = $this->lang['nosupport'];
48        } else {
49            // we're good to go
50            $this->auth = & $auth;
51        }
52
53        // attempt to retrieve any import failures from the session
54        if (!empty($_SESSION['import_failures'])) {
55            $this->import_failures = $_SESSION['import_failures'];
56        }
57    }
58
59    /**
60     * Return prompt for admin menu
61     *
62     * @param string $language
63     * @return string
64     */
65    public function getMenuText($language)
66    {
67
68        if (!is_null($this->auth))
69          return parent::getMenuText($language);
70
71        return $this->getLang('menu').' '.$this->disabled;
72    }
73
74    /**
75     * return sort order for position in admin menu
76     *
77     * @return int
78     */
79    public function getMenuSort()
80    {
81        return 2;
82    }
83
84    /**
85     * @return int current start value for pageination
86     */
87    public function getStart()
88    {
89        return $this->start;
90    }
91
92    /**
93     * @return int number of users per page
94     */
95    public function getPagesize()
96    {
97        return $this->pagesize;
98    }
99
100    /**
101     * @param boolean $lastdisabled
102     */
103    public function setLastdisabled($lastdisabled)
104    {
105        $this->lastdisabled = $lastdisabled;
106    }
107
108    /**
109     * Handle user request
110     *
111     * @return bool
112     */
113    public function handle()
114    {
115        global $INPUT;
116        if (is_null($this->auth)) return false;
117
118        // extract the command and any specific parameters
119        // submit button name is of the form - fn[cmd][param(s)]
120        $fn   = $INPUT->param('fn');
121
122        if (is_array($fn)) {
123            $cmd = key($fn);
124            $param = is_array($fn[$cmd]) ? key($fn[$cmd]) : null;
125        } else {
126            $cmd = $fn;
127            $param = null;
128        }
129
130        if ($cmd != "search") {
131            $this->start = $INPUT->int('start', 0);
132            $this->filter = $this->retrieveFilter();
133        }
134
135        switch ($cmd) {
136            case "add":
137                $this->addUser();
138                break;
139            case "delete":
140                $this->deleteUser();
141                break;
142            case "modify":
143                $this->modifyUser();
144                break;
145            case "edit":
146                $this->editUser($param);
147                break;
148            case "search":
149                $this->setFilter($param);
150                            $this->start = 0;
151                break;
152            case "export":
153                $this->exportCSV();
154                break;
155            case "import":
156                $this->importCSV();
157                break;
158            case "importfails":
159                $this->downloadImportFailures();
160                break;
161        }
162
163        $this->users_total = $this->auth->canDo('getUserCount') ? $this->auth->getUserCount($this->filter) : -1;
164
165        // page handling
166        switch ($cmd) {
167            case 'start':
168                $this->start = 0;
169                break;
170            case 'prev':
171                $this->start -= $this->pagesize;
172                break;
173            case 'next':
174                $this->start += $this->pagesize;
175                break;
176            case 'last':
177                $this->start = $this->users_total;
178                break;
179        }
180        $this->validatePagination();
181        return true;
182    }
183
184    /**
185     * Output appropriate html
186     *
187     * @return bool
188     */
189    public function html()
190    {
191        global $ID;
192
193        if (is_null($this->auth)) {
194            print $this->lang['badauth'];
195            return false;
196        }
197
198        $user_list = $this->auth->retrieveUsers($this->start, $this->pagesize, $this->filter);
199
200        $page_buttons = $this->pagination();
201        $delete_disable = $this->auth->canDo('delUser') ? '' : 'disabled="disabled"';
202
203        $editable = $this->auth->canDo('UserMod');
204        $export_label = empty($this->filter) ? $this->lang['export_all'] : $this->lang['export_filtered'];
205
206        print $this->locale_xhtml('intro');
207        print $this->locale_xhtml('list');
208
209        ptln("<div id=\"user__manager\">");
210        ptln("<div class=\"level2\">");
211
212        if ($this->users_total > 0) {
213            ptln(
214                "<p>" . sprintf(
215                    $this->lang['summary'],
216                    $this->start + 1,
217                    $this->last,
218                    $this->users_total,
219                    $this->auth->getUserCount()
220                ) . "</p>"
221            );
222        } else {
223            if ($this->users_total < 0) {
224                $allUserTotal = 0;
225            } else {
226                $allUserTotal = $this->auth->getUserCount();
227            }
228            ptln("<p>".sprintf($this->lang['nonefound'], $allUserTotal)."</p>");
229        }
230        ptln("<form action=\"".wl($ID)."\" method=\"post\">");
231        formSecurityToken();
232        ptln("  <div class=\"table\">");
233        ptln("  <table class=\"inline\">");
234        ptln("    <thead>");
235        ptln("      <tr>");
236        ptln("        <th>&#160;</th>
237            <th>".$this->lang["user_id"]."</th>
238            <th>".$this->lang["user_name"]."</th>
239            <th>".$this->lang["user_mail"]."</th>
240            <th>".$this->lang["user_groups"]."</th>");
241        ptln("      </tr>");
242
243        ptln("      <tr>");
244        ptln("        <td class=\"rightalign\"><input type=\"image\" src=\"".
245             self::IMAGE_DIR."search.png\" name=\"fn[search][new]\" title=\"".
246             $this->lang['search_prompt']."\" alt=\"".$this->lang['search']."\" class=\"button\" /></td>");
247        ptln("        <td><input type=\"text\" name=\"userid\" class=\"edit\" value=\"".
248             $this->htmlFilter('user')."\" /></td>");
249        ptln("        <td><input type=\"text\" name=\"username\" class=\"edit\" value=\"".
250             $this->htmlFilter('name')."\" /></td>");
251        ptln("        <td><input type=\"text\" name=\"usermail\" class=\"edit\" value=\"".
252             $this->htmlFilter('mail')."\" /></td>");
253        ptln("        <td><input type=\"text\" name=\"usergroups\" class=\"edit\" value=\"".
254             $this->htmlFilter('grps')."\" /></td>");
255        ptln("      </tr>");
256        ptln("    </thead>");
257
258        if ($this->users_total) {
259            ptln("    <tbody>");
260            foreach ($user_list as $user => $userinfo) {
261                extract($userinfo);
262                /**
263                 * @var string $name
264                 * @var string $pass
265                 * @var string $mail
266                 * @var array  $grps
267                 */
268                $groups = join(', ', $grps);
269                ptln("    <tr class=\"user_info\">");
270                ptln("      <td class=\"centeralign\"><input type=\"checkbox\" name=\"delete[".hsc($user).
271                     "]\" ".$delete_disable." /></td>");
272                if ($editable) {
273                    ptln("    <td><a href=\"".wl($ID, array('fn[edit]['.$user.']' => 1,
274                                                           'do' => 'admin',
275                                                           'page' => 'usermanager',
276                                                           'sectok' => getSecurityToken())).
277                         "\" title=\"".$this->lang['edit_prompt']."\">".hsc($user)."</a></td>");
278                } else {
279                    ptln("    <td>".hsc($user)."</td>");
280                }
281                ptln("      <td>".hsc($name)."</td><td>".hsc($mail)."</td><td>".hsc($groups)."</td>");
282                ptln("    </tr>");
283            }
284            ptln("    </tbody>");
285        }
286
287        ptln("    <tbody>");
288        ptln("      <tr><td colspan=\"5\" class=\"centeralign\">");
289        ptln("        <span class=\"medialeft\">");
290        ptln("          <button type=\"submit\" name=\"fn[delete]\" id=\"usrmgr__del\" ".$delete_disable.">".
291             $this->lang['delete_selected']."</button>");
292        ptln("        </span>");
293        ptln("        <span class=\"mediaright\">");
294        ptln("          <button type=\"submit\" name=\"fn[start]\" ".$page_buttons['start'].">".
295             $this->lang['start']."</button>");
296        ptln("          <button type=\"submit\" name=\"fn[prev]\" ".$page_buttons['prev'].">".
297             $this->lang['prev']."</button>");
298        ptln("          <button type=\"submit\" name=\"fn[next]\" ".$page_buttons['next'].">".
299             $this->lang['next']."</button>");
300        ptln("          <button type=\"submit\" name=\"fn[last]\" ".$page_buttons['last'].">".
301             $this->lang['last']."</button>");
302        ptln("        </span>");
303        if (!empty($this->filter)) {
304            ptln("    <button type=\"submit\" name=\"fn[search][clear]\">".$this->lang['clear']."</button>");
305        }
306        ptln("        <button type=\"submit\" name=\"fn[export]\">".$export_label."</button>");
307        ptln("        <input type=\"hidden\" name=\"do\"    value=\"admin\" />");
308        ptln("        <input type=\"hidden\" name=\"page\"  value=\"usermanager\" />");
309
310        $this->htmlFilterSettings(2);
311
312        ptln("      </td></tr>");
313        ptln("    </tbody>");
314        ptln("  </table>");
315        ptln("  </div>");
316
317        ptln("</form>");
318        ptln("</div>");
319
320        $style = $this->edit_user ? " class=\"edit_user\"" : "";
321
322        if ($this->auth->canDo('addUser')) {
323            ptln("<div".$style.">");
324            print $this->locale_xhtml('add');
325            ptln("  <div class=\"level2\">");
326
327            $this->htmlUserForm('add', null, array(), 4);
328
329            ptln("  </div>");
330            ptln("</div>");
331        }
332
333        if ($this->edit_user  && $this->auth->canDo('UserMod')) {
334            ptln("<div".$style." id=\"scroll__here\">");
335            print $this->locale_xhtml('edit');
336            ptln("  <div class=\"level2\">");
337
338            $this->htmlUserForm('modify', $this->edit_user, $this->edit_userdata, 4);
339
340            ptln("  </div>");
341            ptln("</div>");
342        }
343
344        if ($this->auth->canDo('addUser')) {
345            $this->htmlImportForm();
346        }
347        ptln("</div>");
348        return true;
349    }
350
351    /**
352     * Display form to add or modify a user
353     *
354     * @param string $cmd 'add' or 'modify'
355     * @param string $user id of user
356     * @param array  $userdata array with name, mail, pass and grps
357     * @param int    $indent
358     */
359    protected function htmlUserForm($cmd, $user = '', $userdata = array(), $indent = 0)
360    {
361        global $conf;
362        global $ID;
363        global $lang;
364
365        $name = $mail = $groups = '';
366        $notes = array();
367
368        if ($user) {
369            extract($userdata);
370            if (!empty($grps)) $groups = join(',', $grps);
371        } else {
372            $notes[] = sprintf($this->lang['note_group'], $conf['defaultgroup']);
373        }
374
375        ptln("<form action=\"".wl($ID)."\" method=\"post\">", $indent);
376        formSecurityToken();
377        ptln("  <div class=\"table\">", $indent);
378        ptln("  <table class=\"inline\">", $indent);
379        ptln("    <thead>", $indent);
380        ptln("      <tr><th>".$this->lang["field"]."</th><th>".$this->lang["value"]."</th></tr>", $indent);
381        ptln("    </thead>", $indent);
382        ptln("    <tbody>", $indent);
383
384        $this->htmlInputField(
385            $cmd . "_userid",
386            "userid",
387            $this->lang["user_id"],
388            $user,
389            $this->auth->canDo("modLogin"),
390            true,
391            $indent + 6
392        );
393        $this->htmlInputField(
394            $cmd . "_userpass",
395            "userpass",
396            $this->lang["user_pass"],
397            "",
398            $this->auth->canDo("modPass"),
399            false,
400            $indent + 6
401        );
402        $this->htmlInputField(
403            $cmd . "_userpass2",
404            "userpass2",
405            $lang["passchk"],
406            "",
407            $this->auth->canDo("modPass"),
408            false,
409            $indent + 6
410        );
411        $this->htmlInputField(
412            $cmd . "_username",
413            "username",
414            $this->lang["user_name"],
415            $name,
416            $this->auth->canDo("modName"),
417            true,
418            $indent + 6
419        );
420        $this->htmlInputField(
421            $cmd . "_usermail",
422            "usermail",
423            $this->lang["user_mail"],
424            $mail,
425            $this->auth->canDo("modMail"),
426            true,
427            $indent + 6
428        );
429        $this->htmlInputField(
430            $cmd . "_usergroups",
431            "usergroups",
432            $this->lang["user_groups"],
433            $groups,
434            $this->auth->canDo("modGroups"),
435            false,
436            $indent + 6
437        );
438
439        if ($this->auth->canDo("modPass")) {
440            if ($cmd == 'add') {
441                $notes[] = $this->lang['note_pass'];
442            }
443            if ($user) {
444                $notes[] = $this->lang['note_notify'];
445            }
446
447            ptln("<tr><td><label for=\"".$cmd."_usernotify\" >".
448                 $this->lang["user_notify"].": </label></td>
449                 <td><input type=\"checkbox\" id=\"".$cmd."_usernotify\" name=\"usernotify\" value=\"1\" />
450                 </td></tr>", $indent);
451        }
452
453        ptln("    </tbody>", $indent);
454        ptln("    <tbody>", $indent);
455        ptln("      <tr>", $indent);
456        ptln("        <td colspan=\"2\">", $indent);
457        ptln("          <input type=\"hidden\" name=\"do\"    value=\"admin\" />", $indent);
458        ptln("          <input type=\"hidden\" name=\"page\"  value=\"usermanager\" />", $indent);
459
460        // save current $user, we need this to access details if the name is changed
461        if ($user)
462          ptln("          <input type=\"hidden\" name=\"userid_old\"  value=\"".hsc($user)."\" />", $indent);
463
464        $this->htmlFilterSettings($indent+10);
465
466        ptln("          <button type=\"submit\" name=\"fn[".$cmd."]\">".$this->lang[$cmd]."</button>", $indent);
467        ptln("        </td>", $indent);
468        ptln("      </tr>", $indent);
469        ptln("    </tbody>", $indent);
470        ptln("  </table>", $indent);
471
472        if ($notes) {
473            ptln("    <ul class=\"notes\">");
474            foreach ($notes as $note) {
475                ptln("      <li><span class=\"li\">".$note."</li>", $indent);
476            }
477            ptln("    </ul>");
478        }
479        ptln("  </div>", $indent);
480        ptln("</form>", $indent);
481    }
482
483    /**
484     * Prints a inputfield
485     *
486     * @param string $id
487     * @param string $name
488     * @param string $label
489     * @param string $value
490     * @param bool   $cando whether auth backend is capable to do this action
491     * @param bool   $required is this field required?
492     * @param int $indent
493     */
494    protected function htmlInputField($id, $name, $label, $value, $cando, $required, $indent = 0)
495    {
496        $class = $cando ? '' : ' class="disabled"';
497        echo str_pad('', $indent);
498
499        if ($name == 'userpass' || $name == 'userpass2') {
500            $fieldtype = 'password';
501            $autocomp  = 'autocomplete="off"';
502        } elseif ($name == 'usermail') {
503            $fieldtype = 'email';
504            $autocomp  = '';
505        } else {
506            $fieldtype = 'text';
507            $autocomp  = '';
508        }
509        $value = hsc($value);
510
511        echo "<tr $class>";
512        echo "<td><label for=\"$id\" >$label: </label></td>";
513        echo "<td>";
514        if ($cando) {
515            $req = '';
516            if ($required) $req = 'required="required"';
517            echo "<input type=\"$fieldtype\" id=\"$id\" name=\"$name\"
518                  value=\"$value\" class=\"edit\" $autocomp $req />";
519        } else {
520            echo "<input type=\"hidden\" name=\"$name\" value=\"$value\" />";
521            echo "<input type=\"$fieldtype\" id=\"$id\" name=\"$name\"
522                  value=\"$value\" class=\"edit disabled\" disabled=\"disabled\" />";
523        }
524        echo "</td>";
525        echo "</tr>";
526    }
527
528    /**
529     * Returns htmlescaped filter value
530     *
531     * @param string $key name of search field
532     * @return string html escaped value
533     */
534    protected function htmlFilter($key)
535    {
536        if (empty($this->filter)) return '';
537        return (isset($this->filter[$key]) ? hsc($this->filter[$key]) : '');
538    }
539
540    /**
541     * Print hidden inputs with the current filter values
542     *
543     * @param int $indent
544     */
545    protected function htmlFilterSettings($indent = 0)
546    {
547
548        ptln("<input type=\"hidden\" name=\"start\" value=\"".$this->start."\" />", $indent);
549
550        foreach ($this->filter as $key => $filter) {
551            ptln("<input type=\"hidden\" name=\"filter[".$key."]\" value=\"".hsc($filter)."\" />", $indent);
552        }
553    }
554
555    /**
556     * Print import form and summary of previous import
557     *
558     * @param int $indent
559     */
560    protected function htmlImportForm($indent = 0)
561    {
562        global $ID;
563
564        $failure_download_link = wl($ID, array('do'=>'admin','page'=>'usermanager','fn[importfails]'=>1));
565
566        ptln('<div class="level2 import_users">', $indent);
567        print $this->locale_xhtml('import');
568        ptln('  <form action="'.wl($ID).'" method="post" enctype="multipart/form-data">', $indent);
569        formSecurityToken();
570        ptln('    <label>'.$this->lang['import_userlistcsv'].'<input type="file" name="import" /></label>', $indent);
571        ptln('    <button type="submit" name="fn[import]">'.$this->lang['import'].'</button>', $indent);
572        ptln('    <input type="hidden" name="do"    value="admin" />', $indent);
573        ptln('    <input type="hidden" name="page"  value="usermanager" />', $indent);
574
575        $this->htmlFilterSettings($indent+4);
576        ptln('  </form>', $indent);
577        ptln('</div>');
578
579        // list failures from the previous import
580        if ($this->import_failures) {
581            $digits = strlen(count($this->import_failures));
582            ptln('<div class="level3 import_failures">', $indent);
583            ptln('  <h3>'.$this->lang['import_header'].'</h3>');
584            ptln('  <table class="import_failures">', $indent);
585            ptln('    <thead>', $indent);
586            ptln('      <tr>', $indent);
587            ptln('        <th class="line">'.$this->lang['line'].'</th>', $indent);
588            ptln('        <th class="error">'.$this->lang['error'].'</th>', $indent);
589            ptln('        <th class="userid">'.$this->lang['user_id'].'</th>', $indent);
590            ptln('        <th class="username">'.$this->lang['user_name'].'</th>', $indent);
591            ptln('        <th class="usermail">'.$this->lang['user_mail'].'</th>', $indent);
592            ptln('        <th class="usergroups">'.$this->lang['user_groups'].'</th>', $indent);
593            ptln('      </tr>', $indent);
594            ptln('    </thead>', $indent);
595            ptln('    <tbody>', $indent);
596            foreach ($this->import_failures as $line => $failure) {
597                ptln('      <tr>', $indent);
598                ptln('        <td class="lineno"> '.sprintf('%0'.$digits.'d', $line).' </td>', $indent);
599                ptln('        <td class="error">' .$failure['error'].' </td>', $indent);
600                ptln('        <td class="field userid"> '.hsc($failure['user'][0]).' </td>', $indent);
601                ptln('        <td class="field username"> '.hsc($failure['user'][2]).' </td>', $indent);
602                ptln('        <td class="field usermail"> '.hsc($failure['user'][3]).' </td>', $indent);
603                ptln('        <td class="field usergroups"> '.hsc($failure['user'][4]).' </td>', $indent);
604                ptln('      </tr>', $indent);
605            }
606            ptln('    </tbody>', $indent);
607            ptln('  </table>', $indent);
608            ptln('  <p><a href="'.$failure_download_link.'">'.$this->lang['import_downloadfailures'].'</a></p>');
609            ptln('</div>');
610        }
611    }
612
613    /**
614     * Add an user to auth backend
615     *
616     * @return bool whether succesful
617     */
618    protected function addUser()
619    {
620        global $INPUT;
621        if (!checkSecurityToken()) return false;
622        if (!$this->auth->canDo('addUser')) return false;
623
624        list($user,$pass,$name,$mail,$grps,$passconfirm) = $this->retrieveUser();
625        if (empty($user)) return false;
626
627        if ($this->auth->canDo('modPass')) {
628            if (empty($pass)) {
629                if ($INPUT->has('usernotify')) {
630                    $pass = auth_pwgen($user);
631                } else {
632                    msg($this->lang['add_fail'], -1);
633                    msg($this->lang['addUser_error_missing_pass'], -1);
634                    return false;
635                }
636            } else {
637                if (!$this->verifyPassword($pass, $passconfirm)) {
638                    msg($this->lang['add_fail'], -1);
639                    msg($this->lang['addUser_error_pass_not_identical'], -1);
640                    return false;
641                }
642            }
643        } else {
644            if (!empty($pass)) {
645                msg($this->lang['add_fail'], -1);
646                msg($this->lang['addUser_error_modPass_disabled'], -1);
647                return false;
648            }
649        }
650
651        if ($this->auth->canDo('modName')) {
652            if (empty($name)) {
653                msg($this->lang['add_fail'], -1);
654                msg($this->lang['addUser_error_name_missing'], -1);
655                return false;
656            }
657        } else {
658            if (!empty($name)) {
659                msg($this->lang['add_fail'], -1);
660                msg($this->lang['addUser_error_modName_disabled'], -1);
661                return false;
662            }
663        }
664
665        if ($this->auth->canDo('modMail')) {
666            if (empty($mail)) {
667                msg($this->lang['add_fail'], -1);
668                msg($this->lang['addUser_error_mail_missing'], -1);
669                return false;
670            }
671        } else {
672            if (!empty($mail)) {
673                msg($this->lang['add_fail'], -1);
674                msg($this->lang['addUser_error_modMail_disabled'], -1);
675                return false;
676            }
677        }
678
679        if ($ok = $this->auth->triggerUserMod('create', array($user, $pass, $name, $mail, $grps))) {
680            msg($this->lang['add_ok'], 1);
681
682            if ($INPUT->has('usernotify') && $pass) {
683                $this->notifyUser($user, $pass);
684            }
685        } else {
686            msg($this->lang['add_fail'], -1);
687            msg($this->lang['addUser_error_create_event_failed'], -1);
688        }
689
690        return $ok;
691    }
692
693    /**
694     * Delete user from auth backend
695     *
696     * @return bool whether succesful
697     */
698    protected function deleteUser()
699    {
700        global $conf, $INPUT;
701
702        if (!checkSecurityToken()) return false;
703        if (!$this->auth->canDo('delUser')) return false;
704
705        $selected = $INPUT->arr('delete');
706        if (empty($selected)) return false;
707        $selected = array_keys($selected);
708
709        if (in_array($_SERVER['REMOTE_USER'], $selected)) {
710            msg("You can't delete yourself!", -1);
711            return false;
712        }
713
714        $count = $this->auth->triggerUserMod('delete', array($selected));
715        if ($count == count($selected)) {
716            $text = str_replace('%d', $count, $this->lang['delete_ok']);
717            msg("$text.", 1);
718        } else {
719            $part1 = str_replace('%d', $count, $this->lang['delete_ok']);
720            $part2 = str_replace('%d', (count($selected)-$count), $this->lang['delete_fail']);
721            msg("$part1, $part2", -1);
722        }
723
724        // invalidate all sessions
725        io_saveFile($conf['cachedir'].'/sessionpurge', time());
726
727        return true;
728    }
729
730    /**
731     * Edit user (a user has been selected for editing)
732     *
733     * @param string $param id of the user
734     * @return bool whether succesful
735     */
736    protected function editUser($param)
737    {
738        if (!checkSecurityToken()) return false;
739        if (!$this->auth->canDo('UserMod')) return false;
740        $user = $this->auth->cleanUser(preg_replace('/.*[:\/]/', '', $param));
741        $userdata = $this->auth->getUserData($user);
742
743        // no user found?
744        if (!$userdata) {
745            msg($this->lang['edit_usermissing'], -1);
746            return false;
747        }
748
749        $this->edit_user = $user;
750        $this->edit_userdata = $userdata;
751
752        return true;
753    }
754
755    /**
756     * Modify user in the auth backend (modified user data has been recieved)
757     *
758     * @return bool whether succesful
759     */
760    protected function modifyUser()
761    {
762        global $conf, $INPUT;
763
764        if (!checkSecurityToken()) return false;
765        if (!$this->auth->canDo('UserMod')) return false;
766
767        // get currently valid  user data
768        $olduser = $this->auth->cleanUser(preg_replace('/.*[:\/]/', '', $INPUT->str('userid_old')));
769        $oldinfo = $this->auth->getUserData($olduser);
770
771        // get new user data subject to change
772        list($newuser,$newpass,$newname,$newmail,$newgrps,$passconfirm) = $this->retrieveUser();
773        if (empty($newuser)) return false;
774
775        $changes = array();
776        if ($newuser != $olduser) {
777            if (!$this->auth->canDo('modLogin')) {        // sanity check, shouldn't be possible
778                msg($this->lang['update_fail'], -1);
779                return false;
780            }
781
782            // check if $newuser already exists
783            if ($this->auth->getUserData($newuser)) {
784                msg(sprintf($this->lang['update_exists'], $newuser), -1);
785                $re_edit = true;
786            } else {
787                $changes['user'] = $newuser;
788            }
789        }
790        if ($this->auth->canDo('modPass')) {
791            if ($newpass || $passconfirm) {
792                if ($this->verifyPassword($newpass, $passconfirm)) {
793                    $changes['pass'] = $newpass;
794                } else {
795                    return false;
796                }
797            } else {
798                // no new password supplied, check if we need to generate one (or it stays unchanged)
799                if ($INPUT->has('usernotify')) {
800                    $changes['pass'] = auth_pwgen($olduser);
801                }
802            }
803        }
804
805        if (!empty($newname) && $this->auth->canDo('modName') && $newname != $oldinfo['name']) {
806            $changes['name'] = $newname;
807        }
808        if (!empty($newmail) && $this->auth->canDo('modMail') && $newmail != $oldinfo['mail']) {
809            $changes['mail'] = $newmail;
810        }
811        if (!empty($newgrps) && $this->auth->canDo('modGroups') && $newgrps != $oldinfo['grps']) {
812            $changes['grps'] = $newgrps;
813        }
814
815        if ($ok = $this->auth->triggerUserMod('modify', array($olduser, $changes))) {
816            msg($this->lang['update_ok'], 1);
817
818            if ($INPUT->has('usernotify') && !empty($changes['pass'])) {
819                $notify = empty($changes['user']) ? $olduser : $newuser;
820                $this->notifyUser($notify, $changes['pass']);
821            }
822
823            // invalidate all sessions
824            io_saveFile($conf['cachedir'].'/sessionpurge', time());
825        } else {
826            msg($this->lang['update_fail'], -1);
827        }
828
829        if (!empty($re_edit)) {
830            $this->editUser($olduser);
831        }
832
833        return $ok;
834    }
835
836    /**
837     * Send password change notification email
838     *
839     * @param string $user         id of user
840     * @param string $password     plain text
841     * @param bool   $status_alert whether status alert should be shown
842     * @return bool whether succesful
843     */
844    protected function notifyUser($user, $password, $status_alert = true)
845    {
846
847        if ($sent = auth_sendPassword($user, $password)) {
848            if ($status_alert) {
849                msg($this->lang['notify_ok'], 1);
850            }
851        } else {
852            if ($status_alert) {
853                msg($this->lang['notify_fail'], -1);
854            }
855        }
856
857        return $sent;
858    }
859
860    /**
861     * Verify password meets minimum requirements
862     * :TODO: extend to support password strength
863     *
864     * @param string  $password   candidate string for new password
865     * @param string  $confirm    repeated password for confirmation
866     * @return bool   true if meets requirements, false otherwise
867     */
868    protected function verifyPassword($password, $confirm)
869    {
870        global $lang;
871
872        if (empty($password) && empty($confirm)) {
873            return false;
874        }
875
876        if ($password !== $confirm) {
877            msg($lang['regbadpass'], -1);
878            return false;
879        }
880
881        // :TODO: test password for required strength
882
883        // if we make it this far the password is good
884        return true;
885    }
886
887    /**
888     * Retrieve & clean user data from the form
889     *
890     * @param bool $clean whether the cleanUser method of the authentication backend is applied
891     * @return array (user, password, full name, email, array(groups))
892     */
893    protected function retrieveUser($clean = true)
894    {
895        /** @var DokuWiki_Auth_Plugin $auth */
896        global $auth;
897        global $INPUT;
898
899        $user = array();
900        $user[0] = ($clean) ? $auth->cleanUser($INPUT->str('userid')) : $INPUT->str('userid');
901        $user[1] = $INPUT->str('userpass');
902        $user[2] = $INPUT->str('username');
903        $user[3] = $INPUT->str('usermail');
904        $user[4] = explode(',', $INPUT->str('usergroups'));
905        $user[5] = $INPUT->str('userpass2');                // repeated password for confirmation
906
907        $user[4] = array_map('trim', $user[4]);
908        if ($clean) $user[4] = array_map(array($auth,'cleanGroup'), $user[4]);
909        $user[4] = array_filter($user[4]);
910        $user[4] = array_unique($user[4]);
911        if (!count($user[4])) $user[4] = null;
912
913        return $user;
914    }
915
916    /**
917     * Set the filter with the current search terms or clear the filter
918     *
919     * @param string $op 'new' or 'clear'
920     */
921    protected function setFilter($op)
922    {
923
924        $this->filter = array();
925
926        if ($op == 'new') {
927            list($user,/* $pass */,$name,$mail,$grps) = $this->retrieveUser(false);
928
929            if (!empty($user)) $this->filter['user'] = $user;
930            if (!empty($name)) $this->filter['name'] = $name;
931            if (!empty($mail)) $this->filter['mail'] = $mail;
932            if (!empty($grps)) $this->filter['grps'] = join('|', $grps);
933        }
934    }
935
936    /**
937     * Get the current search terms
938     *
939     * @return array
940     */
941    protected function retrieveFilter()
942    {
943        global $INPUT;
944
945        $t_filter = $INPUT->arr('filter');
946
947        // messy, but this way we ensure we aren't getting any additional crap from malicious users
948        $filter = array();
949
950        if (isset($t_filter['user'])) $filter['user'] = $t_filter['user'];
951        if (isset($t_filter['name'])) $filter['name'] = $t_filter['name'];
952        if (isset($t_filter['mail'])) $filter['mail'] = $t_filter['mail'];
953        if (isset($t_filter['grps'])) $filter['grps'] = $t_filter['grps'];
954
955        return $filter;
956    }
957
958    /**
959     * Validate and improve the pagination values
960     */
961    protected function validatePagination()
962    {
963
964        if ($this->start >= $this->users_total) {
965            $this->start = $this->users_total - $this->pagesize;
966        }
967        if ($this->start < 0) $this->start = 0;
968
969        $this->last = min($this->users_total, $this->start + $this->pagesize);
970    }
971
972    /**
973     * Return an array of strings to enable/disable pagination buttons
974     *
975     * @return array with enable/disable attributes
976     */
977    protected function pagination()
978    {
979
980        $disabled = 'disabled="disabled"';
981
982        $buttons = array();
983        $buttons['start'] = $buttons['prev'] = ($this->start == 0) ? $disabled : '';
984
985        if ($this->users_total == -1) {
986            $buttons['last'] = $disabled;
987            $buttons['next'] = '';
988        } else {
989            $buttons['last'] = $buttons['next'] =
990                (($this->start + $this->pagesize) >= $this->users_total) ? $disabled : '';
991        }
992
993        if ($this->lastdisabled) {
994            $buttons['last'] = $disabled;
995        }
996
997        return $buttons;
998    }
999
1000    /**
1001     * Export a list of users in csv format using the current filter criteria
1002     */
1003    protected function exportCSV()
1004    {
1005        // list of users for export - based on current filter criteria
1006        $user_list = $this->auth->retrieveUsers(0, 0, $this->filter);
1007        $column_headings = array(
1008            $this->lang["user_id"],
1009            $this->lang["user_name"],
1010            $this->lang["user_mail"],
1011            $this->lang["user_groups"]
1012        );
1013
1014        // ==============================================================================================
1015        // GENERATE OUTPUT
1016        // normal headers for downloading...
1017        header('Content-type: text/csv;charset=utf-8');
1018        header('Content-Disposition: attachment; filename="wikiusers.csv"');
1019#       // for debugging assistance, send as text plain to the browser
1020#       header('Content-type: text/plain;charset=utf-8');
1021
1022        // output the csv
1023        $fd = fopen('php://output', 'w');
1024        fputcsv($fd, $column_headings);
1025        foreach ($user_list as $user => $info) {
1026            $line = array($user, $info['name'], $info['mail'], join(',', $info['grps']));
1027            fputcsv($fd, $line);
1028        }
1029        fclose($fd);
1030        if (defined('DOKU_UNITTEST')) {
1031            return;
1032        }
1033
1034        die;
1035    }
1036
1037    /**
1038     * Import a file of users in csv format
1039     *
1040     * csv file should have 4 columns, user_id, full name, email, groups (comma separated)
1041     *
1042     * @return bool whether successful
1043     */
1044    protected function importCSV()
1045    {
1046        // check we are allowed to add users
1047        if (!checkSecurityToken()) return false;
1048        if (!$this->auth->canDo('addUser')) return false;
1049
1050        // check file uploaded ok.
1051        if (empty($_FILES['import']['size']) ||
1052            !empty($_FILES['import']['error']) && $this->isUploadedFile($_FILES['import']['tmp_name'])
1053        ) {
1054            msg($this->lang['import_error_upload'], -1);
1055            return false;
1056        }
1057        // retrieve users from the file
1058        $this->import_failures = array();
1059        $import_success_count = 0;
1060        $import_fail_count = 0;
1061        $line = 0;
1062        $fd = fopen($_FILES['import']['tmp_name'], 'r');
1063        if ($fd) {
1064            while ($csv = fgets($fd)) {
1065                if (!utf8_check($csv)) {
1066                    $csv = utf8_encode($csv);
1067                }
1068                $raw = str_getcsv($csv);
1069                $error = '';                        // clean out any errors from the previous line
1070                // data checks...
1071                if (1 == ++$line) {
1072                    if ($raw[0] == 'user_id' || $raw[0] == $this->lang['user_id']) continue;    // skip headers
1073                }
1074                if (count($raw) < 4) {                                        // need at least four fields
1075                    $import_fail_count++;
1076                    $error = sprintf($this->lang['import_error_fields'], count($raw));
1077                    $this->import_failures[$line] = array('error' => $error, 'user' => $raw, 'orig' => $csv);
1078                    continue;
1079                }
1080                array_splice($raw, 1, 0, auth_pwgen());                          // splice in a generated password
1081                $clean = $this->cleanImportUser($raw, $error);
1082                if ($clean && $this->importUser($clean, $error)) {
1083                    $sent = $this->notifyUser($clean[0], $clean[1], false);
1084                    if (!$sent) {
1085                        msg(sprintf($this->lang['import_notify_fail'], $clean[0], $clean[3]), -1);
1086                    }
1087                    $import_success_count++;
1088                } else {
1089                    $import_fail_count++;
1090                    array_splice($raw, 1, 1);                                  // remove the spliced in password
1091                    $this->import_failures[$line] = array('error' => $error, 'user' => $raw, 'orig' => $csv);
1092                }
1093            }
1094            msg(
1095                sprintf(
1096                    $this->lang['import_success_count'],
1097                    ($import_success_count + $import_fail_count),
1098                    $import_success_count
1099                ),
1100                ($import_success_count ? 1 : -1)
1101            );
1102            if ($import_fail_count) {
1103                msg(sprintf($this->lang['import_failure_count'], $import_fail_count), -1);
1104            }
1105        } else {
1106            msg($this->lang['import_error_readfail'], -1);
1107        }
1108
1109        // save import failures into the session
1110        if (!headers_sent()) {
1111            session_start();
1112            $_SESSION['import_failures'] = $this->import_failures;
1113            session_write_close();
1114        }
1115        return true;
1116    }
1117
1118    /**
1119     * Returns cleaned user data
1120     *
1121     * @param array $candidate raw values of line from input file
1122     * @param string $error
1123     * @return array|false cleaned data or false
1124     */
1125    protected function cleanImportUser($candidate, & $error)
1126    {
1127        global $INPUT;
1128
1129        // FIXME kludgy ....
1130        $INPUT->set('userid', $candidate[0]);
1131        $INPUT->set('userpass', $candidate[1]);
1132        $INPUT->set('username', $candidate[2]);
1133        $INPUT->set('usermail', $candidate[3]);
1134        $INPUT->set('usergroups', $candidate[4]);
1135
1136        $cleaned = $this->retrieveUser();
1137        list($user,/* $pass */,$name,$mail,/* $grps */) = $cleaned;
1138        if (empty($user)) {
1139            $error = $this->lang['import_error_baduserid'];
1140            return false;
1141        }
1142
1143        // no need to check password, handled elsewhere
1144
1145        if (!($this->auth->canDo('modName') xor empty($name))) {
1146            $error = $this->lang['import_error_badname'];
1147            return false;
1148        }
1149
1150        if ($this->auth->canDo('modMail')) {
1151            if (empty($mail) || !mail_isvalid($mail)) {
1152                $error = $this->lang['import_error_badmail'];
1153                return false;
1154            }
1155        } else {
1156            if (!empty($mail)) {
1157                $error = $this->lang['import_error_badmail'];
1158                return false;
1159            }
1160        }
1161
1162        return $cleaned;
1163    }
1164
1165    /**
1166     * Adds imported user to auth backend
1167     *
1168     * Required a check of canDo('addUser') before
1169     *
1170     * @param array  $user   data of user
1171     * @param string &$error reference catched error message
1172     * @return bool whether successful
1173     */
1174    protected function importUser($user, &$error)
1175    {
1176        if (!$this->auth->triggerUserMod('create', $user)) {
1177            $error = $this->lang['import_error_create'];
1178            return false;
1179        }
1180
1181        return true;
1182    }
1183
1184    /**
1185     * Downloads failures as csv file
1186     */
1187    protected function downloadImportFailures()
1188    {
1189
1190        // ==============================================================================================
1191        // GENERATE OUTPUT
1192        // normal headers for downloading...
1193        header('Content-type: text/csv;charset=utf-8');
1194        header('Content-Disposition: attachment; filename="importfails.csv"');
1195#       // for debugging assistance, send as text plain to the browser
1196#       header('Content-type: text/plain;charset=utf-8');
1197
1198        // output the csv
1199        $fd = fopen('php://output', 'w');
1200        foreach ($this->import_failures as $fail) {
1201            fputs($fd, $fail['orig']);
1202        }
1203        fclose($fd);
1204        die;
1205    }
1206
1207    /**
1208     * wrapper for is_uploaded_file to facilitate overriding by test suite
1209     *
1210     * @param string $file filename
1211     * @return bool
1212     */
1213    protected function isUploadedFile($file)
1214    {
1215        return is_uploaded_file($file);
1216    }
1217}
1218