admin/user.php

   1 <?php
   2
   3     require_once('../config.php');
   4     require_once($CFG->libdir.'/adminlib.php');
   5     require_once($CFG->libdir.'/authlib.php');
   6     require_once($CFG->dirroot.'/user/filters/lib.php');
   7     require_once($CFG->dirroot.'/user/lib.php');
   8
   9     $delete       = optional_param('delete', 0, PARAM_INT);
  10     $confirm      = optional_param('confirm', '', PARAM_ALPHANUM);   //md5 confirmation hash
  11     $confirmuser  = optional_param('confirmuser', 0, PARAM_INT);
  12     $sort         = optional_param('sort', 'name', PARAM_ALPHANUM);
  13     $dir          = optional_param('dir', 'ASC', PARAM_ALPHA);
  14     $page         = optional_param('page', 0, PARAM_INT);
  15     $perpage      = optional_param('perpage', 30, PARAM_INT);        // how many per page
  16     $ru           = optional_param('ru', '2', PARAM_INT);            // show remote users
  17     $lu           = optional_param('lu', '2', PARAM_INT);            // show local users
  18     $acl          = optional_param('acl', '0', PARAM_INT);           // id of user to tweak mnet ACL (requires $access)
  19     $suspend      = optional_param('suspend', 0, PARAM_INT);
  20     $unsuspend    = optional_param('unsuspend', 0, PARAM_INT);
  21     $unlock       = optional_param('unlock', 0, PARAM_INT);
  22     $resendemail  = optional_param('resendemail', 0, PARAM_INT);
  23
  24     admin_externalpage_setup('editusers');
  25
  26     $sitecontext = context_system::instance();
  27     $site = get_site();
  28
  29     if (!has_capability('moodle/user:update', $sitecontext) and !has_capability('moodle/user:delete', $sitecontext)) {
  30         print_error('nopermissions', 'error', '', 'edit/delete users');
  31     }
  32
  33     $stredit   = get_string('edit');
  34     $strdelete = get_string('delete');
  35     $strdeletecheck = get_string('deletecheck');
  36     $strshowallusers = get_string('showallusers');
  37     $strsuspend = get_string('suspenduser', 'admin');
  38     $strunsuspend = get_string('unsuspenduser', 'admin');
  39     $strunlock = get_string('unlockaccount', 'admin');
  40     $strconfirm = get_string('confirm');
  41     $strresendemail = get_string('resendemail');
  42
  43     $returnurl = new moodle_url('/admin/user.php', array('sort' => $sort, 'dir' => $dir, 'perpage' => $perpage, 'page'=>$page));
  44
  45     // The $user variable is also used outside of these if statements.
  46     $user = null;
  47     if ($confirmuser and confirm_sesskey()) {
  48         require_capability('moodle/user:update', $sitecontext);
  49         if (!$user = $DB->get_record('user', array('id'=>$confirmuser, 'mnethostid'=>$CFG->mnet_localhost_id))) {
  50             print_error('nousers');
  51         }
  52
  53         $auth = get_auth_plugin($user->auth);
  54
  55         $result = $auth->user_confirm($user->username, $user->secret);
  56
  57         if ($result == AUTH_CONFIRM_OK or $result == AUTH_CONFIRM_ALREADY) {
  58             redirect($returnurl);
  59         } else {
  60             echo $OUTPUT->header();
  61             redirect($returnurl, get_string('usernotconfirmed', '', fullname($user, true)));
  62         }
  63
  64     } else if ($resendemail && confirm_sesskey()) {
  65         if (!$user = $DB->get_record('user', ['id' => $resendemail, 'mnethostid' => $CFG->mnet_localhost_id, 'deleted' => 0])) {
  66             print_error('nousers');
  67         }
  68
  69         // Prevent spamming users who are already confirmed.
  70         if ($user->confirmed) {
  71             print_error('alreadyconfirmed');
  72         }
  73
  74         $returnmsg = get_string('emailconfirmsentsuccess');
  75         $messagetype = \core\output\notification::NOTIFY_SUCCESS;
  76         if (!send_confirmation_email($user)) {
  77             $returnmsg = get_string('emailconfirmsentfailure');
  78             $messagetype = \core\output\notification::NOTIFY_ERROR;
  79         }
  80
  81         redirect($returnurl, $returnmsg, null, $messagetype);
  82     } else if ($delete and confirm_sesskey()) {              // Delete a selected user, after confirmation
  83         require_capability('moodle/user:delete', $sitecontext);
  84
  85         $user = $DB->get_record('user', array('id'=>$delete, 'mnethostid'=>$CFG->mnet_localhost_id), '*', MUST_EXIST);
  86
  87         if ($user->deleted) {
  88             print_error('usernotdeleteddeleted', 'error');
  89         }
  90         if (is_siteadmin($user->id)) {
  91             print_error('useradminodelete', 'error');
  92         }
  93
  94         if ($confirm != md5($delete)) {
  95             echo $OUTPUT->header();
  96             $fullname = fullname($user, true);
  97             echo $OUTPUT->heading(get_string('deleteuser', 'admin'));
  98
  99             $optionsyes = array('delete'=>$delete, 'confirm'=>md5($delete), 'sesskey'=>sesskey());
 100             $deleteurl = new moodle_url($returnurl, $optionsyes);
 101             $deletebutton = new single_button($deleteurl, get_string('delete'), 'post');
 102
 103             echo $OUTPUT->confirm(get_string('deletecheckfull', '', "'$fullname'"), $deletebutton, $returnurl);
 104             echo $OUTPUT->footer();
 105             die;
 106         } else if (data_submitted()) {
 107             if (delete_user($user)) {
 108                 \core\session\manager::gc(); // Remove stale sessions.
 109                 redirect($returnurl);
 110             } else {
 111                 \core\session\manager::gc(); // Remove stale sessions.
 112                 echo $OUTPUT->header();
 113                 echo $OUTPUT->notification($returnurl, get_string('deletednot', '', fullname($user, true)));
 114             }
 115         }
 116     } else if ($acl and confirm_sesskey()) {
 117         if (!has_capability('moodle/user:update', $sitecontext)) {
 118             print_error('nopermissions', 'error', '', 'modify the NMET access control list');
 119         }
 120         if (!$user = $DB->get_record('user', array('id'=>$acl))) {
 121             print_error('nousers', 'error');
 122         }
 123         if (!is_mnet_remote_user($user)) {
 124             print_error('usermustbemnet', 'error');
 125         }
 126         $accessctrl = strtolower(required_param('accessctrl', PARAM_ALPHA));
 127         if ($accessctrl != 'allow' and $accessctrl != 'deny') {
 128             print_error('invalidaccessparameter', 'error');
 129         }
 130         $aclrecord = $DB->get_record('mnet_sso_access_control', array('username'=>$user->username, 'mnet_host_id'=>$user->mnethostid));
 131         if (empty($aclrecord)) {
 132             $aclrecord = new stdClass();
 133             $aclrecord->mnet_host_id = $user->mnethostid;
 134             $aclrecord->username = $user->username;
 135             $aclrecord->accessctrl = $accessctrl;
 136             $DB->insert_record('mnet_sso_access_control', $aclrecord);
 137         } else {
 138             $aclrecord->accessctrl = $accessctrl;
 139             $DB->update_record('mnet_sso_access_control', $aclrecord);
 140         }
 141         $mnethosts = $DB->get_records('mnet_host', null, 'id', 'id,wwwroot,name');
 142         redirect($returnurl);
 143
 144     } else if ($suspend and confirm_sesskey()) {
 145         require_capability('moodle/user:update', $sitecontext);
 146
 147         if ($user = $DB->get_record('user', array('id'=>$suspend, 'mnethostid'=>$CFG->mnet_localhost_id, 'deleted'=>0))) {
 148             if (!is_siteadmin($user) and $USER->id != $user->id and $user->suspended != 1) {
 149                 $user->suspended = 1;
 150                 // Force logout.
 151                 \core\session\manager::kill_user_sessions($user->id);
 152                 user_update_user($user, false);
 153             }
 154         }
 155         redirect($returnurl);
 156
 157     } else if ($unsuspend and confirm_sesskey()) {
 158         require_capability('moodle/user:update', $sitecontext);
 159
 160         if ($user = $DB->get_record('user', array('id'=>$unsuspend, 'mnethostid'=>$CFG->mnet_localhost_id, 'deleted'=>0))) {
 161             if ($user->suspended != 0) {
 162                 $user->suspended = 0;
 163                 user_update_user($user, false);
 164             }
 165         }
 166         redirect($returnurl);
 167
 168     } else if ($unlock and confirm_sesskey()) {
 169         require_capability('moodle/user:update', $sitecontext);
 170
 171         if ($user = $DB->get_record('user', array('id'=>$unlock, 'mnethostid'=>$CFG->mnet_localhost_id, 'deleted'=>0))) {
 172             login_unlock_account($user);
 173         }
 174         redirect($returnurl);
 175     }
 176
 177     // create the user filter form
 178     $ufiltering = new user_filtering();
 179     echo $OUTPUT->header();
 180
 181     // Carry on with the user listing
 182     $context = context_system::instance();
 183     // These columns are always shown in the users list.
 184     $requiredcolumns = array('city', 'country', 'lastaccess');
 185     // Extra columns containing the extra user fields, excluding the required columns (city and country, to be specific).
 186     $extracolumns = get_extra_user_fields($context, $requiredcolumns);
 187     // Get all user name fields as an array.
 188     $allusernamefields = get_all_user_name_fields(false, null, null, null, true);
 189     $columns = array_merge($allusernamefields, $extracolumns, $requiredcolumns);
 190
 191     foreach ($columns as $column) {
 192         $string[$column] = get_user_field_name($column);
 193         if ($sort != $column) {
 194             $columnicon = "";
 195             if ($column == "lastaccess") {
 196                 $columndir = "DESC";
 197             } else {
 198                 $columndir = "ASC";
 199             }
 200         } else {
 201             $columndir = $dir == "ASC" ? "DESC":"ASC";
 202             if ($column == "lastaccess") {
 203                 $columnicon = ($dir == "ASC") ? "sort_desc" : "sort_asc";
 204             } else {
 205                 $columnicon = ($dir == "ASC") ? "sort_asc" : "sort_desc";
 206             }
 207             $columnicon = $OUTPUT->pix_icon('t/' . $columnicon, get_string(strtolower($columndir)), 'core',
 208                                             ['class' => 'iconsort']);
 209
 210         }
 211         $$column = "<a href=\"user.php?sort=$column&amp;dir=$columndir\">".$string[$column]."</a>$columnicon";
 212     }
 213
 214     // We need to check that alternativefullnameformat is not set to '' or language.
 215     // We don't need to check the fullnamedisplay setting here as the fullname function call further down has
 216     // the override parameter set to true.
 217     $fullnamesetting = $CFG->alternativefullnameformat;
 218     // If we are using language or it is empty, then retrieve the default user names of just 'firstname' and 'lastname'.
 219     if ($fullnamesetting == 'language' || empty($fullnamesetting)) {
 220         // Set $a variables to return 'firstname' and 'lastname'.
 221         $a = new stdClass();
 222         $a->firstname = 'firstname';
 223         $a->lastname = 'lastname';
 224         // Getting the fullname display will ensure that the order in the language file is maintained.
 225         $fullnamesetting = get_string('fullnamedisplay', null, $a);
 226     }
 227
 228     // Order in string will ensure that the name columns are in the correct order.
 229     $usernames = order_in_string($allusernamefields, $fullnamesetting);
 230     $fullnamedisplay = array();
 231     foreach ($usernames as $name) {
 232         // Use the link from $$column for sorting on the user's name.
 233         $fullnamedisplay[] = ${$name};
 234     }
 235     // All of the names are in one column. Put them into a string and separate them with a /.
 236     $fullnamedisplay = implode(' / ', $fullnamedisplay);
 237     // If $sort = name then it is the default for the setting and we should use the first name to sort by.
 238     if ($sort == "name") {
 239         // Use the first item in the array.
 240         $sort = reset($usernames);
 241     }
 242
 243     list($extrasql, $params) = $ufiltering->get_sql_filter();
 244     $users = get_users_listing($sort, $dir, $page*$perpage, $perpage, '', '', '',
 245             $extrasql, $params, $context);
 246     $usercount = get_users(false);
 247     $usersearchcount = get_users(false, '', false, null, "", '', '', '', '', '*', $extrasql, $params);
 248
 249     if ($extrasql !== '') {
 250         echo $OUTPUT->heading("$usersearchcount / $usercount ".get_string('users'));
 251         $usercount = $usersearchcount;
 252     } else {
 253         echo $OUTPUT->heading("$usercount ".get_string('users'));
 254     }
 255
 256     $strall = get_string('all');
 257
 258     $baseurl = new moodle_url('/admin/user.php', array('sort' => $sort, 'dir' => $dir, 'perpage' => $perpage));
 259     echo $OUTPUT->paging_bar($usercount, $page, $perpage, $baseurl);
 260
 261     flush();
 262
 263
 264     if (!$users) {
 265         $match = array();
 266         echo $OUTPUT->heading(get_string('nousersfound'));
 267
 268         $table = NULL;
 269
 270     } else {
 271
 272         $countries = get_string_manager()->get_list_of_countries(true);
 273         if (empty($mnethosts)) {
 274             $mnethosts = $DB->get_records('mnet_host', null, 'id', 'id,wwwroot,name');
 275         }
 276
 277         foreach ($users as $key => $user) {
 278             if (isset($countries[$user->country])) {
 279                 $users[$key]->country = $countries[$user->country];
 280             }
 281         }
 282         if ($sort == "country") {
 283             // Need to resort by full country name, not code.
 284             foreach ($users as $user) {
 285                 $susers[$user->id] = $user->country;
 286             }
 287             // Sort by country name, according to $dir.
 288             if ($dir === 'DESC') {
 289                 arsort($susers);
 290             } else {
 291                 asort($susers);
 292             }
 293             foreach ($susers as $key => $value) {
 294                 $nusers[] = $users[$key];
 295             }
 296             $users = $nusers;
 297         }
 298
 299         $table = new html_table();
 300         $table->head = array ();
 301         $table->colclasses = array();
 302         $table->head[] = $fullnamedisplay;
 303         $table->attributes['class'] = 'admintable generaltable table-sm';
 304         foreach ($extracolumns as $field) {
 305             $table->head[] = ${$field};
 306         }
 307         $table->head[] = $city;
 308         $table->head[] = $country;
 309         $table->head[] = $lastaccess;
 310         $table->head[] = get_string('edit');
 311         $table->colclasses[] = 'centeralign';
 312         $table->head[] = "";
 313         $table->colclasses[] = 'centeralign';
 314
 315         $table->id = "users";
 316         foreach ($users as $user) {
 317             $buttons = array();
 318             $lastcolumn = '';
 319
 320             // delete button
 321             if (has_capability('moodle/user:delete', $sitecontext)) {
 322                 if (is_mnet_remote_user($user) or $user->id == $USER->id or is_siteadmin($user)) {
 323                     // no deleting of self, mnet accounts or admins allowed
 324                 } else {
 325                     $url = new moodle_url($returnurl, array('delete'=>$user->id, 'sesskey'=>sesskey()));
 326                     $buttons[] = html_writer::link($url, $OUTPUT->pix_icon('t/delete', $strdelete));
 327                 }
 328             }
 329
 330             // suspend button
 331             if (has_capability('moodle/user:update', $sitecontext)) {
 332                 if (is_mnet_remote_user($user)) {
 333                     // mnet users have special access control, they can not be deleted the standard way or suspended
 334                     $accessctrl = 'allow';
 335                     if ($acl = $DB->get_record('mnet_sso_access_control', array('username'=>$user->username, 'mnet_host_id'=>$user->mnethostid))) {
 336                         $accessctrl = $acl->accessctrl;
 337                     }
 338                     $changeaccessto = ($accessctrl == 'deny' ? 'allow' : 'deny');
 339                     $buttons[] = " (<a href=\"?acl={$user->id}&amp;accessctrl=$changeaccessto&amp;sesskey=".sesskey()."\">".get_string($changeaccessto, 'mnet') . " access</a>)";
 340
 341                 } else {
 342                     if ($user->suspended) {
 343                         $url = new moodle_url($returnurl, array('unsuspend'=>$user->id, 'sesskey'=>sesskey()));
 344                         $buttons[] = html_writer::link($url, $OUTPUT->pix_icon('t/show', $strunsuspend));
 345                     } else {
 346                         if ($user->id == $USER->id or is_siteadmin($user)) {
 347                             // no suspending of admins or self!
 348                         } else {
 349                             $url = new moodle_url($returnurl, array('suspend'=>$user->id, 'sesskey'=>sesskey()));
 350                             $buttons[] = html_writer::link($url, $OUTPUT->pix_icon('t/hide', $strsuspend));
 351                         }
 352                     }
 353
 354                     if (login_is_lockedout($user)) {
 355                         $url = new moodle_url($returnurl, array('unlock'=>$user->id, 'sesskey'=>sesskey()));
 356                         $buttons[] = html_writer::link($url, $OUTPUT->pix_icon('t/unlock', $strunlock));
 357                     }
 358                 }
 359             }
 360
 361             // edit button
 362             if (has_capability('moodle/user:update', $sitecontext)) {
 363                 // prevent editing of admins by non-admins
 364                 if (is_siteadmin($USER) or !is_siteadmin($user)) {
 365                     $url = new moodle_url('/user/editadvanced.php', array('id'=>$user->id, 'course'=>$site->id));
 366                     $buttons[] = html_writer::link($url, $OUTPUT->pix_icon('t/edit', $stredit));
 367                 }
 368             }
 369
 370             // the last column - confirm or mnet info
 371             if (is_mnet_remote_user($user)) {
 372                 // all mnet users are confirmed, let's print just the name of the host there
 373                 if (isset($mnethosts[$user->mnethostid])) {
 374                     $lastcolumn = get_string($accessctrl, 'mnet').': '.$mnethosts[$user->mnethostid]->name;
 375                 } else {
 376                     $lastcolumn = get_string($accessctrl, 'mnet');
 377                 }
 378
 379             } else if ($user->confirmed == 0) {
 380                 if (has_capability('moodle/user:update', $sitecontext)) {
 381                     $lastcolumn = html_writer::link(new moodle_url($returnurl, array('confirmuser'=>$user->id, 'sesskey'=>sesskey())), $strconfirm);
 382                 } else {
 383                     $lastcolumn = "<span class=\"dimmed_text\">".get_string('confirm')."</span>";
 384                 }
 385
 386                 $lastcolumn .= ' | ' . html_writer::link(new moodle_url($returnurl,
 387                     [
 388                         'resendemail' => $user->id,
 389                         'sesskey' => sesskey()
 390                     ]
 391                 ), $strresendemail);
 392             }
 393
 394             if ($user->lastaccess) {
 395                 $strlastaccess = format_time(time() - $user->lastaccess);
 396             } else {
 397                 $strlastaccess = get_string('never');
 398             }
 399             $fullname = fullname($user, true);
 400
 401             $row = array ();
 402             $row[] = "<a href=\"../user/view.php?id=$user->id&amp;course=$site->id\">$fullname</a>";
 403             foreach ($extracolumns as $field) {
 404                 $row[] = s($user->{$field});
 405             }
 406             $row[] = $user->city;
 407             $row[] = $user->country;
 408             $row[] = $strlastaccess;
 409             if ($user->suspended) {
 410                 foreach ($row as $k=>$v) {
 411                     $row[$k] = html_writer::tag('span', $v, array('class'=>'usersuspended'));
 412                 }
 413             }
 414             $row[] = implode(' ', $buttons);
 415             $row[] = $lastcolumn;
 416             $table->data[] = $row;
 417         }
 418     }
 419
 420     // add filters
 421     $ufiltering->display_add();
 422     $ufiltering->display_active();
 423
 424     if (!empty($table)) {
 425         echo html_writer::start_tag('div', array('class'=>'no-overflow'));
 426         echo html_writer::table($table);
 427         echo html_writer::end_tag('div');
 428         echo $OUTPUT->paging_bar($usercount, $page, $perpage, $baseurl);
 429     }
 430     if (has_capability('moodle/user:create', $sitecontext)) {
 431         $url = new moodle_url('/user/editadvanced.php', array('id' => -1));
 432         echo $OUTPUT->single_button($url, get_string('addnewuser'), 'get');
 433     }
 434
 435     echo $OUTPUT->footer();