admin/renderer.php

   1 <?php
   2 // This file is part of Moodle - http://moodle.org/
   3 //
   4 // Moodle is free software: you can redistribute it and/or modify
   5 // it under the terms of the GNU General Public License as published by
   6 // the Free Software Foundation, either version 3 of the License, or
   7 // (at your option) any later version.
   8 //
   9 // Moodle is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13 //
  14 // You should have received a copy of the GNU General Public License
  15 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 /**
  18  * Standard HTML output renderer for core_admin subsystem.
  19  *
  20  * @package    core
  21  * @subpackage admin
  22  * @copyright  2011 David Mudrak <david@moodle.com>
  23  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24  */
  25 class core_admin_renderer extends plugin_renderer_base {
  26
  27     /**
  28      * Display the 'Do you acknowledge the terms of the GPL' page. The first page
  29      * during install.
  30      * @return string HTML to output.
  31      */
  32     public function install_licence_page() {
  33         global $CFG;
  34         $output = '';
  35
  36         $copyrightnotice = text_to_html(get_string('gpl3'));
  37         $copyrightnotice = str_replace('target="_blank"', 'onclick="this.target=\'_blank\'"', $copyrightnotice); // extremely ugly validation hack
  38
  39         $continue = new single_button(new moodle_url($this->page->url, array(
  40             'lang' => $CFG->lang, 'agreelicense' => 1)), get_string('continue'), 'get');
  41
  42         $output .= $this->header();
  43         $output .= $this->heading('<a href="http://moodle.org">Moodle</a> - Modular Object-Oriented Dynamic Learning Environment');
  44         $output .= $this->heading(get_string('copyrightnotice'));
  45         $output .= $this->box($copyrightnotice, 'copyrightnotice');
  46         $output .= html_writer::empty_tag('br');
  47         $output .= $this->confirm(get_string('doyouagree'), $continue, "https://moodledev.io/general/license");
  48         $output .= $this->footer();
  49
  50         return $output;
  51     }
  52
  53     /**
  54      * Display page explaining proper upgrade process,
  55      * there can not be any PHP file leftovers...
  56      *
  57      * @return string HTML to output.
  58      */
  59     public function upgrade_stale_php_files_page() {
  60         $output = '';
  61         $output .= $this->header();
  62         $output .= $this->heading(get_string('upgradestalefiles', 'admin'));
  63         $output .= $this->box_start('generalbox', 'notice');
  64         $output .= format_text(get_string('upgradestalefilesinfo', 'admin', get_docs_url('Upgrading')), FORMAT_MARKDOWN);
  65         $output .= html_writer::empty_tag('br');
  66         $output .= html_writer::tag('div', $this->single_button($this->page->url, get_string('reload'), 'get'), array('class' => 'buttons'));
  67         $output .= $this->box_end();
  68         $output .= $this->footer();
  69
  70         return $output;
  71     }
  72
  73     /**
  74      * Display the 'environment check' page that is displayed during install.
  75      * @param int $maturity
  76      * @param boolean $envstatus final result of the check (true/false)
  77      * @param array $environment_results array of results gathered
  78      * @param string $release moodle release
  79      * @return string HTML to output.
  80      */
  81     public function install_environment_page($maturity, $envstatus, $environment_results, $release) {
  82         global $CFG;
  83         $output = '';
  84
  85         $output .= $this->header();
  86         $output .= $this->maturity_warning($maturity);
  87         $output .= $this->heading("Moodle $release");
  88         $output .= $this->release_notes_link();
  89
  90         $output .= $this->environment_check_table($envstatus, $environment_results);
  91
  92         if (!$envstatus) {
  93             $output .= $this->upgrade_reload(new moodle_url($this->page->url, array('agreelicense' => 1, 'lang' => $CFG->lang)));
  94         } else {
  95             $output .= $this->notification(get_string('environmentok', 'admin'), 'notifysuccess');
  96             $output .= $this->continue_button(new moodle_url($this->page->url, array(
  97                 'agreelicense' => 1, 'confirmrelease' => 1, 'lang' => $CFG->lang)));
  98         }
  99
 100         $output .= $this->footer();
 101         return $output;
 102     }
 103
 104     /**
 105      * Displays the list of plugins with unsatisfied dependencies
 106      *
 107      * @param double|string|int $version Moodle on-disk version
 108      * @param array $failed list of plugins with unsatisfied dependecies
 109      * @param moodle_url $reloadurl URL of the page to recheck the dependencies
 110      * @return string HTML
 111      */
 112     public function unsatisfied_dependencies_page($version, array $failed, moodle_url $reloadurl) {
 113         $output = '';
 114
 115         $output .= $this->header();
 116         $output .= $this->heading(get_string('pluginscheck', 'admin'));
 117         $output .= $this->warning(get_string('pluginscheckfailed', 'admin', array('pluginslist' => implode(', ', array_unique($failed)))));
 118         $output .= $this->plugins_check_table(core_plugin_manager::instance(), $version, array('xdep' => true));
 119         $output .= $this->warning(get_string('pluginschecktodo', 'admin'));
 120         $output .= $this->continue_button($reloadurl);
 121
 122         $output .= $this->footer();
 123
 124         return $output;
 125     }
 126
 127     /**
 128      * Display the 'You are about to upgrade Moodle' page. The first page
 129      * during upgrade.
 130      * @param string $strnewversion
 131      * @param int $maturity
 132      * @param string $testsite
 133      * @return string HTML to output.
 134      */
 135     public function upgrade_confirm_page($strnewversion, $maturity, $testsite) {
 136         $output = '';
 137
 138         $continueurl = new moodle_url($this->page->url, array('confirmupgrade' => 1, 'cache' => 0));
 139         $continue = new single_button($continueurl, get_string('continue'), 'get');
 140         $cancelurl = new moodle_url('/admin/index.php');
 141
 142         $output .= $this->header();
 143         $output .= $this->maturity_warning($maturity);
 144         $output .= $this->test_site_warning($testsite);
 145         $output .= $this->confirm(get_string('upgradesure', 'admin', $strnewversion), $continue, $cancelurl);
 146         $output .= $this->footer();
 147
 148         return $output;
 149     }
 150
 151     /**
 152      * Display the environment page during the upgrade process.
 153      * @param string $release
 154      * @param boolean $envstatus final result of env check (true/false)
 155      * @param array $environment_results array of results gathered
 156      * @return string HTML to output.
 157      */
 158     public function upgrade_environment_page($release, $envstatus, $environment_results) {
 159         global $CFG;
 160         $output = '';
 161
 162         $output .= $this->header();
 163         $output .= $this->heading("Moodle $release");
 164         $output .= $this->release_notes_link();
 165         $output .= $this->environment_check_table($envstatus, $environment_results);
 166
 167         if (!$envstatus) {
 168             $output .= $this->upgrade_reload(new moodle_url($this->page->url, array('confirmupgrade' => 1, 'cache' => 0)));
 169
 170         } else {
 171             $output .= $this->notification(get_string('environmentok', 'admin'), 'notifysuccess');
 172
 173             if (empty($CFG->skiplangupgrade) and current_language() !== 'en') {
 174                 $output .= $this->box(get_string('langpackwillbeupdated', 'admin'), 'generalbox', 'notice');
 175             }
 176
 177             $output .= $this->continue_button(new moodle_url($this->page->url, array(
 178                 'confirmupgrade' => 1, 'confirmrelease' => 1, 'cache' => 0)));
 179         }
 180
 181         $output .= $this->footer();
 182
 183         return $output;
 184     }
 185
 186     /**
 187      * Display the upgrade page that lists all the plugins that require attention.
 188      * @param core_plugin_manager $pluginman provides information about the plugins.
 189      * @param \core\update\checker $checker provides information about available updates.
 190      * @param int $version the version of the Moodle code from version.php.
 191      * @param bool $showallplugins
 192      * @param moodle_url $reloadurl
 193      * @param moodle_url $continueurl
 194      * @return string HTML to output.
 195      */
 196     public function upgrade_plugin_check_page(core_plugin_manager $pluginman, \core\update\checker $checker,
 197             $version, $showallplugins, $reloadurl, $continueurl) {
 198
 199         $output = '';
 200
 201         $output .= $this->header();
 202         $output .= $this->box_start('generalbox', 'plugins-check-page');
 203         $output .= html_writer::tag('p', get_string('pluginchecknotice', 'core_plugin'), array('class' => 'page-description'));
 204         $output .= $this->check_for_updates_button($checker, $reloadurl);
 205         $output .= $this->missing_dependencies($pluginman);
 206         $output .= $this->plugins_check_table($pluginman, $version, array('full' => $showallplugins));
 207         $output .= $this->box_end();
 208         $output .= $this->upgrade_reload($reloadurl);
 209
 210         if ($pluginman->some_plugins_updatable()) {
 211             $output .= $this->container_start('upgradepluginsinfo');
 212             $output .= $this->help_icon('upgradepluginsinfo', 'core_admin', get_string('upgradepluginsfirst', 'core_admin'));
 213             $output .= $this->container_end();
 214         }
 215
 216         $button = new single_button($continueurl, get_string('upgradestart', 'admin'), 'get', single_button::BUTTON_PRIMARY);
 217         $button->class = 'continuebutton';
 218         $output .= $this->render($button);
 219         $output .= $this->footer();
 220
 221         return $output;
 222     }
 223
 224     /**
 225      * Display a page to confirm plugin installation cancelation.
 226      *
 227      * @param array $abortable list of \core\update\plugininfo
 228      * @param moodle_url $continue
 229      * @return string
 230      */
 231     public function upgrade_confirm_abort_install_page(array $abortable, moodle_url $continue) {
 232
 233         $pluginman = core_plugin_manager::instance();
 234
 235         if (empty($abortable)) {
 236             // The UI should not allow this.
 237             throw new moodle_exception('err_no_plugin_install_abortable', 'core_plugin');
 238         }
 239
 240         $out = $this->output->header();
 241         $out .= $this->output->heading(get_string('cancelinstallhead', 'core_plugin'), 3);
 242         $out .= $this->output->container(get_string('cancelinstallinfo', 'core_plugin'), 'cancelinstallinfo');
 243
 244         foreach ($abortable as $pluginfo) {
 245             $out .= $this->output->heading($pluginfo->displayname.' ('.$pluginfo->component.')', 4);
 246             $out .= $this->output->container(get_string('cancelinstallinfodir', 'core_plugin', $pluginfo->rootdir));
 247             if ($repotype = $pluginman->plugin_external_source($pluginfo->component)) {
 248                 $out .= $this->output->container(get_string('uninstalldeleteconfirmexternal', 'core_plugin', $repotype),
 249                     'alert alert-warning mt-2');
 250             }
 251         }
 252
 253         $out .= $this->plugins_management_confirm_buttons($continue, $this->page->url);
 254         $out .= $this->output->footer();
 255
 256         return $out;
 257     }
 258
 259     /**
 260      * Display the admin notifications page.
 261      * @param int $maturity
 262      * @param bool $insecuredataroot warn dataroot is invalid
 263      * @param bool $errorsdisplayed warn invalid dispaly error setting
 264      * @param bool $cronoverdue warn cron not running
 265      * @param bool $dbproblems warn db has problems
 266      * @param bool $maintenancemode warn in maintenance mode
 267      * @param bool $buggyiconvnomb warn iconv problems
 268      * @param array|null $availableupdates array of \core\update\info objects or null
 269      * @param int|null $availableupdatesfetch timestamp of the most recent updates fetch or null (unknown)
 270      * @param string[] $cachewarnings An array containing warnings from the Cache API.
 271      * @param array $eventshandlers Events 1 API handlers.
 272      * @param bool $themedesignermode Warn about the theme designer mode.
 273      * @param bool $devlibdir Warn about development libs directory presence.
 274      * @param bool $mobileconfigured Whether the mobile web services have been enabled
 275      * @param bool $overridetossl Whether or not ssl is being forced.
 276      * @param bool $invalidforgottenpasswordurl Whether the forgotten password URL does not link to a valid URL.
 277      * @param bool $croninfrequent If true, warn that cron hasn't run in the past few minutes
 278      * @param bool $showcampaigncontent Whether the campaign content should be visible or not.
 279      * @param bool $showfeedbackencouragement Whether the feedback encouragement content should be displayed or not.
 280      * @param bool $showservicesandsupport Whether the services and support content should be displayed or not.
 281      * @param string $xmlrpcwarning XML-RPC deprecation warning message.
 282      *
 283      * @return string HTML to output.
 284      */
 285     public function admin_notifications_page($maturity, $insecuredataroot, $errorsdisplayed,
 286             $cronoverdue, $dbproblems, $maintenancemode, $availableupdates, $availableupdatesfetch,
 287             $buggyiconvnomb, $registered, array $cachewarnings = array(), $eventshandlers = 0,
 288             $themedesignermode = false, $devlibdir = false, $mobileconfigured = false,
 289             $overridetossl = false, $invalidforgottenpasswordurl = false, $croninfrequent = false,
 290             $showcampaigncontent = false, bool $showfeedbackencouragement = false, bool $showservicesandsupport = false,
 291             $xmlrpcwarning = '') {
 292
 293         global $CFG;
 294         $output = '';
 295
 296         $output .= $this->header();
 297         $output .= $this->output->heading(get_string('notifications', 'admin'));
 298         $output .= $this->upgrade_news_message();
 299         $output .= $this->maturity_info($maturity);
 300         $output .= empty($CFG->disableupdatenotifications) ? $this->available_updates($availableupdates, $availableupdatesfetch) : '';
 301         $output .= $this->insecure_dataroot_warning($insecuredataroot);
 302         $output .= $this->development_libs_directories_warning($devlibdir);
 303         $output .= $this->themedesignermode_warning($themedesignermode);
 304         $output .= $this->display_errors_warning($errorsdisplayed);
 305         $output .= $this->buggy_iconv_warning($buggyiconvnomb);
 306         $output .= $this->cron_overdue_warning($cronoverdue);
 307         $output .= $this->cron_infrequent_warning($croninfrequent);
 308         $output .= $this->db_problems($dbproblems);
 309         $output .= $this->maintenance_mode_warning($maintenancemode);
 310         $output .= $this->overridetossl_warning($overridetossl);
 311         $output .= $this->cache_warnings($cachewarnings);
 312         $output .= $this->events_handlers($eventshandlers);
 313         $output .= $this->registration_warning($registered);
 314         $output .= $this->mobile_configuration_warning($mobileconfigured);
 315         $output .= $this->forgotten_password_url_warning($invalidforgottenpasswordurl);
 316         $output .= $this->mnet_deprecation_warning($xmlrpcwarning);
 317         $output .= $this->userfeedback_encouragement($showfeedbackencouragement);
 318         $output .= $this->services_and_support_content($showservicesandsupport);
 319         $output .= $this->campaign_content($showcampaigncontent);
 320
 321         //////////////////////////////////////////////////////////////////////////////////////////////////
 322         ////  IT IS ILLEGAL AND A VIOLATION OF THE GPL TO HIDE, REMOVE OR MODIFY THIS COPYRIGHT NOTICE ///
 323         $output .= $this->moodle_copyright();
 324         //////////////////////////////////////////////////////////////////////////////////////////////////
 325
 326         $output .= $this->footer();
 327
 328         return $output;
 329     }
 330
 331     /**
 332      * Display the plugin management page (admin/plugins.php).
 333      *
 334      * The filtering options array may contain following items:
 335      *  bool contribonly - show only contributed extensions
 336      *  bool updatesonly - show only plugins with an available update
 337      *
 338      * @param core_plugin_manager $pluginman
 339      * @param \core\update\checker $checker
 340      * @param array $options filtering options
 341      * @return string HTML to output.
 342      */
 343     public function plugin_management_page(core_plugin_manager $pluginman, \core\update\checker $checker, array $options = array()) {
 344
 345         $output = '';
 346
 347         $output .= $this->header();
 348         $output .= $this->heading(get_string('pluginsoverview', 'core_admin'));
 349         $output .= $this->check_for_updates_button($checker, $this->page->url);
 350         $output .= $this->plugins_overview_panel($pluginman, $options);
 351         $output .= $this->plugins_control_panel($pluginman, $options);
 352         $output .= $this->footer();
 353
 354         return $output;
 355     }
 356
 357     /**
 358      * Renders a button to fetch for available updates.
 359      *
 360      * @param \core\update\checker $checker
 361      * @param moodle_url $reloadurl
 362      * @return string HTML
 363      */
 364     public function check_for_updates_button(\core\update\checker $checker, $reloadurl) {
 365
 366         $output = '';
 367
 368         if ($checker->enabled()) {
 369             $output .= $this->container_start('checkforupdates mb-4');
 370             $output .= $this->single_button(
 371                 new moodle_url($reloadurl, array('fetchupdates' => 1)),
 372                 get_string('checkforupdates', 'core_plugin')
 373             );
 374             if ($timefetched = $checker->get_last_timefetched()) {
 375                 $timefetched = userdate($timefetched, get_string('strftimedatetime', 'core_langconfig'));
 376                 $output .= $this->container(get_string('checkforupdateslast', 'core_plugin', $timefetched),
 377                     'lasttimefetched small text-muted mt-1');
 378             }
 379             $output .= $this->container_end();
 380         }
 381
 382         return $output;
 383     }
 384
 385     /**
 386      * Display a page to confirm the plugin uninstallation.
 387      *
 388      * @param core_plugin_manager $pluginman
 389      * @param \core\plugininfo\base $pluginfo
 390      * @param moodle_url $continueurl URL to continue after confirmation
 391      * @param moodle_url $cancelurl URL to to go if cancelled
 392      * @return string
 393      */
 394     public function plugin_uninstall_confirm_page(core_plugin_manager $pluginman, \core\plugininfo\base $pluginfo, moodle_url $continueurl, moodle_url $cancelurl) {
 395         $output = '';
 396
 397         $pluginname = $pluginman->plugin_name($pluginfo->component);
 398
 399         $confirm = '<p>' . get_string('uninstallconfirm', 'core_plugin', array('name' => $pluginname)) . '</p>';
 400         if ($extraconfirm = $pluginfo->get_uninstall_extra_warning()) {
 401             $confirm .= $extraconfirm;
 402         }
 403
 404         $output .= $this->output->header();
 405         $output .= $this->output->heading(get_string('uninstalling', 'core_plugin', array('name' => $pluginname)));
 406         $output .= $this->output->confirm($confirm, $continueurl, $cancelurl);
 407         $output .= $this->output->footer();
 408
 409         return $output;
 410     }
 411
 412     /**
 413      * Display a page with results of plugin uninstallation and offer removal of plugin files.
 414      *
 415      * @param core_plugin_manager $pluginman
 416      * @param \core\plugininfo\base $pluginfo
 417      * @param progress_trace_buffer $progress
 418      * @param moodle_url $continueurl URL to continue to remove the plugin folder
 419      * @return string
 420      */
 421     public function plugin_uninstall_results_removable_page(core_plugin_manager $pluginman, \core\plugininfo\base $pluginfo,
 422                                                             progress_trace_buffer $progress, moodle_url $continueurl) {
 423         $output = '';
 424
 425         $pluginname = $pluginman->plugin_name($pluginfo->component);
 426
 427         // Do not show navigation here, they must click one of the buttons.
 428         $this->page->set_pagelayout('maintenance');
 429         $this->page->set_cacheable(false);
 430
 431         $output .= $this->output->header();
 432         $output .= $this->output->heading(get_string('uninstalling', 'core_plugin', array('name' => $pluginname)));
 433
 434         $output .= $this->output->box($progress->get_buffer(), 'generalbox uninstallresultmessage');
 435
 436         $confirm = $this->output->container(get_string('uninstalldeleteconfirm', 'core_plugin',
 437             array('name' => $pluginname, 'rootdir' => $pluginfo->rootdir)), 'uninstalldeleteconfirm');
 438
 439         if ($repotype = $pluginman->plugin_external_source($pluginfo->component)) {
 440             $confirm .= $this->output->container(get_string('uninstalldeleteconfirmexternal', 'core_plugin', $repotype),
 441                 'alert alert-warning mt-2');
 442         }
 443
 444         // After any uninstall we must execute full upgrade to finish the cleanup!
 445         $output .= $this->output->confirm($confirm, $continueurl, new moodle_url('/admin/index.php'));
 446         $output .= $this->output->footer();
 447
 448         return $output;
 449     }
 450
 451     /**
 452      * Display a page with results of plugin uninstallation and inform about the need to remove plugin files manually.
 453      *
 454      * @param core_plugin_manager $pluginman
 455      * @param \core\plugininfo\base $pluginfo
 456      * @param progress_trace_buffer $progress
 457      * @return string
 458      */
 459     public function plugin_uninstall_results_page(core_plugin_manager $pluginman, \core\plugininfo\base $pluginfo, progress_trace_buffer $progress) {
 460         $output = '';
 461
 462         $pluginname = $pluginfo->component;
 463
 464         $output .= $this->output->header();
 465         $output .= $this->output->heading(get_string('uninstalling', 'core_plugin', array('name' => $pluginname)));
 466
 467         $output .= $this->output->box($progress->get_buffer(), 'generalbox uninstallresultmessage');
 468
 469         $output .= $this->output->box(get_string('uninstalldelete', 'core_plugin',
 470             array('name' => $pluginname, 'rootdir' => $pluginfo->rootdir)), 'generalbox uninstalldelete');
 471         $output .= $this->output->continue_button(new moodle_url('/admin/index.php'));
 472         $output .= $this->output->footer();
 473
 474         return $output;
 475     }
 476
 477     /**
 478      * Display the plugin management page (admin/environment.php).
 479      * @param array $versions
 480      * @param string $version
 481      * @param boolean $envstatus final result of env check (true/false)
 482      * @param array $environment_results array of results gathered
 483      * @return string HTML to output.
 484      */
 485     public function environment_check_page($versions, $version, $envstatus, $environment_results) {
 486         $output = '';
 487         $output .= $this->header();
 488
 489         // Print the component download link
 490         $output .= html_writer::tag('div', html_writer::link(
 491                     new moodle_url('/admin/environment.php', array('action' => 'updatecomponent', 'sesskey' => sesskey())),
 492                     get_string('updatecomponent', 'admin')),
 493                 array('class' => 'reportlink'));
 494
 495         // Heading.
 496         $output .= $this->heading(get_string('environment', 'admin'));
 497
 498         // Box with info and a menu to choose the version.
 499         $output .= $this->box_start();
 500         $output .= html_writer::tag('div', get_string('adminhelpenvironment'));
 501         $select = new single_select(new moodle_url('/admin/environment.php'), 'version', $versions, $version, null);
 502         $select->label = get_string('moodleversion');
 503         $output .= $this->render($select);
 504         $output .= $this->box_end();
 505
 506         // The results
 507         $output .= $this->environment_check_table($envstatus, $environment_results);
 508
 509         $output .= $this->footer();
 510         return $output;
 511     }
 512
 513     /**
 514      * Output a warning message, of the type that appears on the admin notifications page.
 515      * @param string $message the message to display.
 516      * @param string $type type class
 517      * @return string HTML to output.
 518      */
 519     protected function warning($message, $type = 'warning') {
 520         return $this->box($message, 'generalbox alert alert-' . $type);
 521     }
 522
 523     /**
 524      * Render an appropriate message if dataroot is insecure.
 525      * @param bool $insecuredataroot
 526      * @return string HTML to output.
 527      */
 528     protected function insecure_dataroot_warning($insecuredataroot) {
 529         global $CFG;
 530
 531         if ($insecuredataroot == INSECURE_DATAROOT_WARNING) {
 532             return $this->warning(get_string('datarootsecuritywarning', 'admin', $CFG->dataroot));
 533
 534         } else if ($insecuredataroot == INSECURE_DATAROOT_ERROR) {
 535             return $this->warning(get_string('datarootsecurityerror', 'admin', $CFG->dataroot), 'danger');
 536
 537         } else {
 538             return '';
 539         }
 540     }
 541
 542     /**
 543      * Render a warning that a directory with development libs is present.
 544      *
 545      * @param bool $devlibdir True if the warning should be displayed.
 546      * @return string
 547      */
 548     protected function development_libs_directories_warning($devlibdir) {
 549
 550         if ($devlibdir) {
 551             $moreinfo = new moodle_url('/report/security/index.php');
 552             $warning = get_string('devlibdirpresent', 'core_admin', ['moreinfourl' => $moreinfo->out()]);
 553             return $this->warning($warning, 'danger');
 554
 555         } else {
 556             return '';
 557         }
 558     }
 559
 560     /**
 561      * Render an appropriate message if dataroot is insecure.
 562      * @param bool $errorsdisplayed
 563      * @return string HTML to output.
 564      */
 565     protected function display_errors_warning($errorsdisplayed) {
 566         if (!$errorsdisplayed) {
 567             return '';
 568         }
 569
 570         return $this->warning(get_string('displayerrorswarning', 'admin'));
 571     }
 572
 573     /**
 574      * Render an appropriate message if themdesignermode is enabled.
 575      * @param bool $themedesignermode true if enabled
 576      * @return string HTML to output.
 577      */
 578     protected function themedesignermode_warning($themedesignermode) {
 579         if (!$themedesignermode) {
 580             return '';
 581         }
 582
 583         return $this->warning(get_string('themedesignermodewarning', 'admin'));
 584     }
 585
 586     /**
 587      * Render an appropriate message if iconv is buggy and mbstring missing.
 588      * @param bool $buggyiconvnomb
 589      * @return string HTML to output.
 590      */
 591     protected function buggy_iconv_warning($buggyiconvnomb) {
 592         if (!$buggyiconvnomb) {
 593             return '';
 594         }
 595
 596         return $this->warning(get_string('warningiconvbuggy', 'admin'));
 597     }
 598
 599     /**
 600      * Render an appropriate message if cron has not been run recently.
 601      * @param bool $cronoverdue
 602      * @return string HTML to output.
 603      */
 604     public function cron_overdue_warning($cronoverdue) {
 605         global $CFG;
 606         if (!$cronoverdue) {
 607             return '';
 608         }
 609
 610         $check = new \tool_task\check\cronrunning();
 611         $result = $check->get_result();
 612         return $this->warning($result->get_summary() . '&nbsp;' . $this->help_icon('cron', 'admin'));
 613     }
 614
 615     /**
 616      * Render an appropriate message if cron is not being run frequently (recommended every minute).
 617      *
 618      * @param bool $croninfrequent
 619      * @return string HTML to output.
 620      */
 621     public function cron_infrequent_warning(bool $croninfrequent): string {
 622         global $CFG;
 623
 624         if (!$croninfrequent) {
 625             return '';
 626         }
 627
 628         $check = new \tool_task\check\cronrunning();
 629         $result = $check->get_result();
 630         return $this->warning($result->get_summary() . '&nbsp;' . $this->help_icon('cron', 'admin'));
 631     }
 632
 633     /**
 634      * Render an appropriate message if there are any problems with the DB set-up.
 635      * @param bool $dbproblems
 636      * @return string HTML to output.
 637      */
 638     public function db_problems($dbproblems) {
 639         if (!$dbproblems) {
 640             return '';
 641         }
 642
 643         return $this->warning($dbproblems);
 644     }
 645
 646     /**
 647      * Renders cache warnings if there are any.
 648      *
 649      * @param string[] $cachewarnings
 650      * @return string
 651      */
 652     public function cache_warnings(array $cachewarnings) {
 653         if (!count($cachewarnings)) {
 654             return '';
 655         }
 656         return join("\n", array_map(array($this, 'warning'), $cachewarnings));
 657     }
 658
 659     /**
 660      * Renders events 1 API handlers warning.
 661      *
 662      * @param array $eventshandlers
 663      * @return string
 664      */
 665     public function events_handlers($eventshandlers) {
 666         if ($eventshandlers) {
 667             $components = '';
 668             foreach ($eventshandlers as $eventhandler) {
 669                 $components .= $eventhandler->component . ', ';
 670             }
 671             $components = rtrim($components, ', ');
 672             return $this->warning(get_string('eventshandlersinuse', 'admin', $components));
 673         }
 674     }
 675
 676     /**
 677      * Render an appropriate message if the site in in maintenance mode.
 678      * @param bool $maintenancemode
 679      * @return string HTML to output.
 680      */
 681     public function maintenance_mode_warning($maintenancemode) {
 682         if (!$maintenancemode) {
 683             return '';
 684         }
 685
 686         $url = new moodle_url('/admin/settings.php', array('section' => 'maintenancemode'));
 687         $url = $url->out(); // get_string() does not support objects in params
 688
 689         return $this->warning(get_string('sitemaintenancewarning2', 'admin', $url));
 690     }
 691
 692     /**
 693      * Render a warning that ssl is forced because the site was on loginhttps.
 694      *
 695      * @param bool $overridetossl Whether or not ssl is being forced.
 696      * @return string
 697      */
 698     protected function overridetossl_warning($overridetossl) {
 699         if (!$overridetossl) {
 700             return '';
 701         }
 702         $warning = get_string('overridetossl', 'core_admin');
 703         return $this->warning($warning, 'warning');
 704     }
 705
 706     /**
 707      * Display a warning about installing development code if necesary.
 708      * @param int $maturity
 709      * @return string HTML to output.
 710      */
 711     protected function maturity_warning($maturity) {
 712         if ($maturity == MATURITY_STABLE) {
 713             return ''; // No worries.
 714         }
 715
 716         $maturitylevel = get_string('maturity' . $maturity, 'admin');
 717         return $this->warning(
 718                     $this->container(get_string('maturitycorewarning', 'admin', $maturitylevel)) .
 719                     $this->container($this->doc_link('admin/versions', get_string('morehelp'))),
 720                 'danger');
 721     }
 722
 723     /*
 724      * If necessary, displays a warning about upgrading a test site.
 725      *
 726      * @param string $testsite
 727      * @return string HTML
 728      */
 729     protected function test_site_warning($testsite) {
 730
 731         if (!$testsite) {
 732             return '';
 733         }
 734
 735         $warning = (get_string('testsiteupgradewarning', 'admin', $testsite));
 736         return $this->warning($warning, 'danger');
 737     }
 738
 739     /**
 740      * Output the copyright notice.
 741      * @return string HTML to output.
 742      */
 743     protected function moodle_copyright() {
 744         global $CFG;
 745
 746         //////////////////////////////////////////////////////////////////////////////////////////////////
 747         ////  IT IS ILLEGAL AND A VIOLATION OF THE GPL TO HIDE, REMOVE OR MODIFY THIS COPYRIGHT NOTICE ///
 748         $copyrighttext = '<a href="http://moodle.org/">Moodle</a> '.
 749                          '<a href="https://moodledev.io/general/releases" title="'.$CFG->version.'">'.$CFG->release.'</a><br />'.
 750                          'Copyright &copy; 1999 onwards, Martin Dougiamas<br />'.
 751                          'and <a href="http://moodle.org/dev">many other contributors</a>.<br />'.
 752                          '<a href="https://moodledev.io/general/license">GNU Public License</a>';
 753         //////////////////////////////////////////////////////////////////////////////////////////////////
 754
 755         return $this->box($copyrighttext, 'copyright');
 756     }
 757
 758     /**
 759      * Display a transient notification for important upgrades messages for
 760      * specific releases.
 761      *
 762      * @return string HTML to output.
 763      */
 764     protected function upgrade_news_message() {
 765         return $this->notification(
 766             get_string('importantupdates_content', 'admin'),
 767             'info',
 768             false,
 769             get_string('importantupdates_title', 'admin'),
 770             'i/circleinfo, core'
 771         );
 772     }
 773
 774     /**
 775      * Display a warning about installing development code if necesary.
 776      * @param int $maturity
 777      * @return string HTML to output.
 778      */
 779     protected function maturity_info($maturity) {
 780         if ($maturity == MATURITY_STABLE) {
 781             return ''; // No worries.
 782         }
 783
 784         $level = 'warning';
 785
 786         if ($maturity == MATURITY_ALPHA) {
 787             $level = 'danger';
 788         }
 789
 790         $maturitylevel = get_string('maturity' . $maturity, 'admin');
 791         $warningtext = get_string('maturitycoreinfo', 'admin', $maturitylevel);
 792         $warningtext .= ' ' . $this->doc_link('admin/versions', get_string('morehelp'));
 793         return $this->warning($warningtext, $level);
 794     }
 795
 796     /**
 797      * Displays the info about available Moodle core and plugin updates
 798      *
 799      * The structure of the $updates param has changed since 2.4. It contains not only updates
 800      * for the core itself, but also for all other installed plugins.
 801      *
 802      * @param array|null $updates array of (string)component => array of \core\update\info objects or null
 803      * @param int|null $fetch timestamp of the most recent updates fetch or null (unknown)
 804      * @return string
 805      */
 806     protected function available_updates($updates, $fetch) {
 807
 808         $updateinfo = '';
 809         $someupdateavailable = false;
 810         if (is_array($updates)) {
 811             if (is_array($updates['core'])) {
 812                 $someupdateavailable = true;
 813                 $updateinfo .= $this->heading(get_string('updateavailable', 'core_admin'), 3);
 814                 foreach ($updates['core'] as $update) {
 815                     $updateinfo .= $this->moodle_available_update_info($update);
 816                 }
 817                 $updateinfo .= html_writer::tag('p', get_string('updateavailablerecommendation', 'core_admin'),
 818                     array('class' => 'updateavailablerecommendation'));
 819             }
 820             unset($updates['core']);
 821             // If something has left in the $updates array now, it is updates for plugins.
 822             if (!empty($updates)) {
 823                 $someupdateavailable = true;
 824                 $updateinfo .= $this->heading(get_string('updateavailableforplugin', 'core_admin'), 3);
 825                 $pluginsoverviewurl = new moodle_url('/admin/plugins.php', array('updatesonly' => 1));
 826                 $updateinfo .= $this->container(get_string('pluginsoverviewsee', 'core_admin',
 827                     array('url' => $pluginsoverviewurl->out())));
 828             }
 829         }
 830
 831         if (!$someupdateavailable) {
 832             $now = time();
 833             if ($fetch and ($fetch <= $now) and ($now - $fetch < HOURSECS)) {
 834                 $updateinfo .= $this->heading(get_string('updateavailablenot', 'core_admin'), 3);
 835             }
 836         }
 837
 838         $updateinfo .= $this->container_start('checkforupdates mt-1');
 839         $fetchurl = new moodle_url('/admin/index.php', array('fetchupdates' => 1, 'sesskey' => sesskey(), 'cache' => 0));
 840         $updateinfo .= $this->single_button($fetchurl, get_string('checkforupdates', 'core_plugin'));
 841         if ($fetch) {
 842             $updateinfo .= $this->container(get_string('checkforupdateslast', 'core_plugin',
 843                 userdate($fetch, get_string('strftimedatetime', 'core_langconfig'))));
 844         }
 845         $updateinfo .= $this->container_end();
 846
 847         return $this->warning($updateinfo);
 848     }
 849
 850     /**
 851      * Display a warning about not being registered on Moodle.org if necesary.
 852      *
 853      * @param boolean $registered true if the site is registered on Moodle.org
 854      * @return string HTML to output.
 855      */
 856     protected function registration_warning($registered) {
 857
 858         if (!$registered && site_is_public()) {
 859             if (has_capability('moodle/site:config', context_system::instance())) {
 860                 $registerbutton = $this->single_button(new moodle_url('/admin/registration/index.php'),
 861                     get_string('register', 'admin'));
 862                 $str = 'registrationwarning';
 863                 $type = 'error alert alert-danger';
 864             } else {
 865                 $registerbutton = '';
 866                 $str = 'registrationwarningcontactadmin';
 867                 $type = 'info';
 868             }
 869
 870             return $this->warning( get_string($str, 'admin') . '&nbsp;' . $registerbutton , $type);
 871         }
 872
 873         return '';
 874     }
 875
 876     /**
 877      * Return an admin page warning if site is not registered with moodle.org
 878      *
 879      * @return string
 880      */
 881     public function warn_if_not_registered() {
 882         return $this->registration_warning(\core\hub\registration::is_registered());
 883     }
 884
 885     /**
 886      * Display a warning about the Mobile Web Services being disabled.
 887      *
 888      * @param boolean $mobileconfigured true if mobile web services are enabled
 889      * @return string HTML to output.
 890      */
 891     protected function mobile_configuration_warning($mobileconfigured) {
 892         $output = '';
 893         if (!$mobileconfigured) {
 894             $settingslink = new moodle_url('/admin/search.php', ['query' => 'enablemobilewebservice']);
 895             $configurebutton = $this->single_button($settingslink, get_string('enablemobilewebservice', 'admin'), 'get');
 896             $output .= $this->warning(get_string('mobilenotconfiguredwarning', 'admin') . '&nbsp;' . $configurebutton);
 897         }
 898
 899         return $output;
 900     }
 901
 902     /**
 903      * Display campaign content.
 904      *
 905      * @param bool $showcampaigncontent Whether the campaign content should be visible or not.
 906      * @return string the campaign content raw html.
 907      */
 908     protected function campaign_content(bool $showcampaigncontent): string {
 909         if (!$showcampaigncontent) {
 910             return '';
 911         }
 912
 913         $lang = current_language();
 914         $url = "https://campaign.moodle.org/current/lms/{$lang}/install/";
 915         $params = [
 916             'url' => $url,
 917             'iframeid' => 'campaign-content',
 918             'title' => get_string('campaign', 'admin'),
 919         ];
 920
 921         return $this->render_from_template('core/external_content_banner', $params);
 922     }
 923
 924     /**
 925      * Display services and support content.
 926      *
 927      * @param bool $showservicesandsupport Whether the services and support content should be visible or not.
 928      * @return string the campaign content raw html.
 929      */
 930     protected function services_and_support_content(bool $showservicesandsupport): string {
 931         if (!$showservicesandsupport) {
 932             return '';
 933         }
 934
 935         $lang = current_language();
 936         $url = "https://campaign.moodle.org/current/lms/{$lang}/servicesandsupport/";
 937         $params = [
 938             'url' => $url,
 939             'iframeid' => 'services-support-content',
 940             'title' => get_string('supportandservices', 'admin'),
 941         ];
 942
 943         return $this->render_from_template('core/external_content_banner', $params);
 944     }
 945
 946     /**
 947      * Display a warning about the forgotten password URL not linking to a valid URL.
 948      *
 949      * @param boolean $invalidforgottenpasswordurl true if the forgotten password URL is not valid
 950      * @return string HTML to output.
 951      */
 952     protected function forgotten_password_url_warning($invalidforgottenpasswordurl) {
 953         $output = '';
 954         if ($invalidforgottenpasswordurl) {
 955             $settingslink = new moodle_url('/admin/settings.php', ['section' => 'manageauths']);
 956             $configurebutton = $this->single_button($settingslink, get_string('check', 'moodle'));
 957             $output .= $this->warning(get_string('invalidforgottenpasswordurl', 'admin') . '&nbsp;' . $configurebutton,
 958                 'error alert alert-danger');
 959         }
 960
 961         return $output;
 962     }
 963
 964     /**
 965      * Helper method to render the information about the available Moodle update
 966      *
 967      * @param \core\update\info $updateinfo information about the available Moodle core update
 968      */
 969     protected function moodle_available_update_info(\core\update\info $updateinfo) {
 970
 971         $boxclasses = 'moodleupdateinfo mb-2';
 972         $info = array();
 973
 974         if (isset($updateinfo->release)) {
 975             $info[] = html_writer::tag('span', get_string('updateavailable_release', 'core_admin', $updateinfo->release),
 976                 array('class' => 'info release'));
 977         }
 978
 979         if (isset($updateinfo->version)) {
 980             $info[] = html_writer::tag('span', get_string('updateavailable_version', 'core_admin', $updateinfo->version),
 981                 array('class' => 'info version'));
 982         }
 983
 984         if (isset($updateinfo->maturity)) {
 985             $info[] = html_writer::tag('span', get_string('maturity'.$updateinfo->maturity, 'core_admin'),
 986                 array('class' => 'info maturity'));
 987             $boxclasses .= ' maturity'.$updateinfo->maturity;
 988         }
 989
 990         if (isset($updateinfo->download)) {
 991             $info[] = html_writer::link($updateinfo->download, get_string('download'),
 992                 array('class' => 'info download btn btn-secondary'));
 993         }
 994
 995         if (isset($updateinfo->url)) {
 996             $info[] = html_writer::link($updateinfo->url, get_string('updateavailable_moreinfo', 'core_plugin'),
 997                 array('class' => 'info more'));
 998         }
 999
1000         $box  = $this->output->container_start($boxclasses);
1001         $box .= $this->output->container(implode(html_writer::tag('span', ' | ', array('class' => 'separator')), $info), '');
1002         $box .= $this->output->container_end();
1003
1004         return $box;
1005     }
1006
1007     /**
1008      * Display a link to the release notes.
1009      * @return string HTML to output.
1010      */
1011     protected function release_notes_link() {
1012         $releasenoteslink = get_string('releasenoteslink', 'admin', 'https://moodledev.io/general/releases');
1013         $releasenoteslink = str_replace('target="_blank"', 'onclick="this.target=\'_blank\'"', $releasenoteslink); // extremely ugly validation hack
1014         return $this->box($releasenoteslink, 'generalbox alert alert-info');
1015     }
1016
1017     /**
1018      * Display the reload link that appears on several upgrade/install pages.
1019      * @return string HTML to output.
1020      */
1021     function upgrade_reload($url) {
1022         return html_writer::empty_tag('br') .
1023                 html_writer::tag('div',
1024                     html_writer::link($url, $this->pix_icon('i/reload', '', '', ['class' => 'icon']) .
1025                             get_string('reload'), array('title' => get_string('reload'))),
1026                 array('class' => 'continuebutton')) . html_writer::empty_tag('br');
1027     }
1028
1029     /**
1030      * Displays all known plugins and information about their installation or upgrade
1031      *
1032      * This default implementation renders all plugins into one big table. The rendering
1033      * options support:
1034      *     (bool)full = false: whether to display up-to-date plugins, too
1035      *     (bool)xdep = false: display the plugins with unsatisified dependecies only
1036      *
1037      * @param core_plugin_manager $pluginman provides information about the plugins.
1038      * @param int $version the version of the Moodle code from version.php.
1039      * @param array $options rendering options
1040      * @return string HTML code
1041      */
1042     public function plugins_check_table(core_plugin_manager $pluginman, $version, array $options = array()) {
1043         global $CFG;
1044         $plugininfo = $pluginman->get_plugins();
1045
1046         if (empty($plugininfo)) {
1047             return '';
1048         }
1049
1050         $options['full'] = isset($options['full']) ? (bool)$options['full'] : false;
1051         $options['xdep'] = isset($options['xdep']) ? (bool)$options['xdep'] : false;
1052
1053         $table = new html_table();
1054         $table->id = 'plugins-check';
1055         $table->head = array(
1056             get_string('displayname', 'core_plugin').' / '.get_string('rootdir', 'core_plugin'),
1057             get_string('versiondb', 'core_plugin'),
1058             get_string('versiondisk', 'core_plugin'),
1059             get_string('requires', 'core_plugin'),
1060             get_string('source', 'core_plugin').' / '.get_string('status', 'core_plugin'),
1061         );
1062         $table->colclasses = array(
1063             'displayname', 'versiondb', 'versiondisk', 'requires', 'status',
1064         );
1065         $table->data = array();
1066
1067         // Number of displayed plugins per type.
1068         $numdisplayed = array();
1069         // Number of plugins known to the plugin manager.
1070         $sumtotal = 0;
1071         // Number of plugins requiring attention.
1072         $sumattention = 0;
1073         // List of all components we can cancel installation of.
1074         $installabortable = $pluginman->list_cancellable_installations();
1075         // List of all components we can cancel upgrade of.
1076         $upgradeabortable = $pluginman->list_restorable_archives();
1077
1078         foreach ($plugininfo as $type => $plugins) {
1079
1080             $header = new html_table_cell($pluginman->plugintype_name_plural($type));
1081             $header->header = true;
1082             $header->colspan = count($table->head);
1083             $header = new html_table_row(array($header));
1084             $header->attributes['class'] = 'plugintypeheader type-' . $type;
1085
1086             $numdisplayed[$type] = 0;
1087
1088             if (empty($plugins) and $options['full']) {
1089                 $msg = new html_table_cell(get_string('noneinstalled', 'core_plugin'));
1090                 $msg->colspan = count($table->head);
1091                 $row = new html_table_row(array($msg));
1092                 $row->attributes['class'] .= 'msg msg-noneinstalled';
1093                 $table->data[] = $header;
1094                 $table->data[] = $row;
1095                 continue;
1096             }
1097
1098             $plugintyperows = array();
1099
1100             foreach ($plugins as $name => $plugin) {
1101                 $component = "{$plugin->type}_{$plugin->name}";
1102
1103                 $sumtotal++;
1104                 $row = new html_table_row();
1105                 $row->attributes['class'] = "type-{$plugin->type} name-{$component}";
1106
1107                 $iconidentifier = 'icon';
1108                 if ($plugin->type === 'mod') {
1109                     $iconidentifier = 'monologo';
1110                 }
1111
1112                 if ($this->page->theme->resolve_image_location($iconidentifier, $component, null)) {
1113                     $icon = $this->output->pix_icon($iconidentifier, '', $component, [
1114                         'class' => 'smallicon pluginicon',
1115                     ]);
1116                 } else {
1117                     $icon = '';
1118                 }
1119
1120                 $displayname = new html_table_cell(
1121                     $icon.
1122                     html_writer::span($plugin->displayname, 'pluginname').
1123                     html_writer::div($plugin->get_dir(), 'plugindir text-muted small')
1124                 );
1125
1126                 $versiondb = new html_table_cell($plugin->versiondb);
1127                 $versiondisk = new html_table_cell($plugin->versiondisk);
1128
1129                 if ($isstandard = $plugin->is_standard()) {
1130                     $row->attributes['class'] .= ' standard';
1131                     $sourcelabel = html_writer::span(get_string('sourcestd', 'core_plugin'),
1132                         'sourcetext badge bg-secondary text-dark');
1133                 } else {
1134                     $row->attributes['class'] .= ' extension';
1135                     $sourcelabel = html_writer::span(get_string('sourceext', 'core_plugin'), 'sourcetext badge bg-info text-white');
1136                 }
1137
1138                 $coredependency = $plugin->is_core_dependency_satisfied($version);
1139                 $incompatibledependency = $plugin->is_core_compatible_satisfied($CFG->branch);
1140
1141                 $otherpluginsdependencies = $pluginman->are_dependencies_satisfied($plugin->get_other_required_plugins());
1142                 $dependenciesok = $coredependency && $otherpluginsdependencies && $incompatibledependency;
1143
1144                 $statuscode = $plugin->get_status();
1145                 $row->attributes['class'] .= ' status-' . $statuscode;
1146                 $statusclass = 'statustext badge ';
1147                 switch ($statuscode) {
1148                     case core_plugin_manager::PLUGIN_STATUS_NEW:
1149                         $statusclass .= $dependenciesok ? 'bg-success text-white' : 'bg-warning text-dark';
1150                         break;
1151                     case core_plugin_manager::PLUGIN_STATUS_UPGRADE:
1152                         $statusclass .= $dependenciesok ? 'bg-info text-white' : 'bg-warning text-dark';
1153                         break;
1154                     case core_plugin_manager::PLUGIN_STATUS_MISSING:
1155                     case core_plugin_manager::PLUGIN_STATUS_DOWNGRADE:
1156                     case core_plugin_manager::PLUGIN_STATUS_DELETE:
1157                         $statusclass .= 'bg-danger text-white';
1158                         break;
1159                     case core_plugin_manager::PLUGIN_STATUS_NODB:
1160                     case core_plugin_manager::PLUGIN_STATUS_UPTODATE:
1161                         $statusclass .= $dependenciesok ? 'bg-light text-dark' : 'bg-warning text-dark';
1162                         break;
1163                 }
1164                 $status = html_writer::span(get_string('status_' . $statuscode, 'core_plugin'), $statusclass);
1165
1166                 if (!empty($installabortable[$plugin->component])) {
1167                     $status .= $this->output->single_button(
1168                         new moodle_url($this->page->url, array('abortinstall' => $plugin->component, 'confirmplugincheck' => 0)),
1169                         get_string('cancelinstallone', 'core_plugin'),
1170                         'post',
1171                         array('class' => 'actionbutton cancelinstallone d-block mt-1')
1172                     );
1173                 }
1174
1175                 if (!empty($upgradeabortable[$plugin->component])) {
1176                     $status .= $this->output->single_button(
1177                         new moodle_url($this->page->url, array('abortupgrade' => $plugin->component)),
1178                         get_string('cancelupgradeone', 'core_plugin'),
1179                         'post',
1180                         array('class' => 'actionbutton cancelupgradeone d-block mt-1')
1181                     );
1182                 }
1183
1184                 $availableupdates = $plugin->available_updates();
1185                 if (!empty($availableupdates)) {
1186                     foreach ($availableupdates as $availableupdate) {
1187                         $status .= $this->plugin_available_update_info($pluginman, $availableupdate);
1188                     }
1189                 }
1190
1191                 $status = new html_table_cell($sourcelabel.' '.$status);
1192                 if ($plugin->pluginsupported != null) {
1193                     $requires = new html_table_cell($this->required_column($plugin, $pluginman, $version, $CFG->branch));
1194                 } else {
1195                     $requires = new html_table_cell($this->required_column($plugin, $pluginman, $version));
1196                 }
1197
1198                 $statusisboring = in_array($statuscode, array(
1199                         core_plugin_manager::PLUGIN_STATUS_NODB, core_plugin_manager::PLUGIN_STATUS_UPTODATE));
1200
1201                 if ($options['xdep']) {
1202                     // we want to see only plugins with failed dependencies
1203                     if ($dependenciesok) {
1204                         continue;
1205                     }
1206
1207                 } else if ($statusisboring and $dependenciesok and empty($availableupdates)) {
1208                     // no change is going to happen to the plugin - display it only
1209                     // if the user wants to see the full list
1210                     if (empty($options['full'])) {
1211                         continue;
1212                     }
1213
1214                 } else {
1215                     $sumattention++;
1216                 }
1217
1218                 // The plugin should be displayed.
1219                 $numdisplayed[$type]++;
1220                 $row->cells = array($displayname, $versiondb, $versiondisk, $requires, $status);
1221                 $plugintyperows[] = $row;
1222             }
1223
1224             if (empty($numdisplayed[$type]) and empty($options['full'])) {
1225                 continue;
1226             }
1227
1228             $table->data[] = $header;
1229             $table->data = array_merge($table->data, $plugintyperows);
1230         }
1231
1232         // Total number of displayed plugins.
1233         $sumdisplayed = array_sum($numdisplayed);
1234
1235         if ($options['xdep']) {
1236             // At the plugins dependencies check page, display the table only.
1237             return html_writer::table($table);
1238         }
1239
1240         $out = $this->output->container_start('', 'plugins-check-info');
1241
1242         if ($sumdisplayed == 0) {
1243             $out .= $this->output->heading(get_string('pluginchecknone', 'core_plugin'));
1244
1245         } else {
1246             if (empty($options['full'])) {
1247                 $out .= $this->output->heading(get_string('plugincheckattention', 'core_plugin'));
1248             } else {
1249                 $out .= $this->output->heading(get_string('plugincheckall', 'core_plugin'));
1250             }
1251         }
1252
1253         $out .= $this->output->container_start('actions mb-2');
1254
1255         $installableupdates = $pluginman->filter_installable($pluginman->available_updates());
1256         if ($installableupdates) {
1257             $out .= $this->output->single_button(
1258                 new moodle_url($this->page->url, array('installupdatex' => 1)),
1259                 get_string('updateavailableinstallall', 'core_admin', count($installableupdates)),
1260                 'post',
1261                 array('class' => 'singlebutton updateavailableinstallall me-1')
1262             );
1263         }
1264
1265         if ($installabortable) {
1266             $out .= $this->output->single_button(
1267                 new moodle_url($this->page->url, array('abortinstallx' => 1, 'confirmplugincheck' => 0)),
1268                 get_string('cancelinstallall', 'core_plugin', count($installabortable)),
1269                 'post',
1270                 array('class' => 'singlebutton cancelinstallall me-1')
1271             );
1272         }
1273
1274         if ($upgradeabortable) {
1275             $out .= $this->output->single_button(
1276                 new moodle_url($this->page->url, array('abortupgradex' => 1)),
1277                 get_string('cancelupgradeall', 'core_plugin', count($upgradeabortable)),
1278                 'post',
1279                 array('class' => 'singlebutton cancelupgradeall me-1')
1280             );
1281         }
1282
1283         $out .= html_writer::div(html_writer::link(new moodle_url($this->page->url, array('showallplugins' => 0)),
1284             get_string('plugincheckattention', 'core_plugin')).' '.html_writer::span($sumattention, 'badge bg-light text-dark'),
1285             'btn btn-link me-1');
1286
1287         $out .= html_writer::div(html_writer::link(new moodle_url($this->page->url, array('showallplugins' => 1)),
1288             get_string('plugincheckall', 'core_plugin')).' '.html_writer::span($sumtotal, 'badge bg-light text-dark'),
1289             'btn btn-link me-1');
1290
1291         $out .= $this->output->container_end(); // End of .actions container.
1292         $out .= $this->output->container_end(); // End of #plugins-check-info container.
1293
1294         if ($sumdisplayed > 0 or $options['full']) {
1295             $out .= html_writer::table($table);
1296         }
1297
1298         return $out;
1299     }
1300
1301     /**
1302      * Display the continue / cancel widgets for the plugins management pages.
1303      *
1304      * @param null|moodle_url $continue URL for the continue button, should it be displayed
1305      * @param null|moodle_url $cancel URL for the cancel link, defaults to the current page
1306      * @return string HTML
1307      */
1308     public function plugins_management_confirm_buttons(?moodle_url $continue=null, ?moodle_url $cancel=null) {
1309
1310         $out = html_writer::start_div('plugins-management-confirm-buttons');
1311
1312         if (!empty($continue)) {
1313             $out .= $this->output->single_button($continue, get_string('continue'), 'post', array('class' => 'continue'));
1314         }
1315
1316         if (empty($cancel)) {
1317             $cancel = $this->page->url;
1318         }
1319         $out .= html_writer::div(html_writer::link($cancel, get_string('cancel')), 'cancel');
1320
1321         return $out;
1322     }
1323
1324     /**
1325      * Displays the information about missing dependencies
1326      *
1327      * @param core_plugin_manager $pluginman
1328      * @return string
1329      */
1330     protected function missing_dependencies(core_plugin_manager $pluginman) {
1331
1332         $dependencies = $pluginman->missing_dependencies();
1333
1334         if (empty($dependencies)) {
1335             return '';
1336         }
1337
1338         $available = array();
1339         $unavailable = array();
1340         $unknown = array();
1341
1342         foreach ($dependencies as $component => $remoteinfo) {
1343             if ($remoteinfo === false) {
1344                 // The required version is not available. Let us check if there
1345                 // is at least some version in the plugins directory.
1346                 $remoteinfoanyversion = $pluginman->get_remote_plugin_info($component, ANY_VERSION, false);
1347                 if ($remoteinfoanyversion === false) {
1348                     $unknown[$component] = $component;
1349                 } else {
1350                     $unavailable[$component] = $remoteinfoanyversion;
1351                 }
1352             } else {
1353                 $available[$component] = $remoteinfo;
1354             }
1355         }
1356
1357         $out  = $this->output->container_start('plugins-check-dependencies mb-4');
1358
1359         if ($unavailable or $unknown) {
1360             $out .= $this->output->heading(get_string('misdepsunavail', 'core_plugin'));
1361             if ($unknown) {
1362                 $out .= $this->output->render((new \core\output\notification(get_string('misdepsunknownlist', 'core_plugin',
1363                     implode(', ', $unknown))))->set_show_closebutton(false));
1364             }
1365             if ($unavailable) {
1366                 $unavailablelist = array();
1367                 foreach ($unavailable as $component => $remoteinfoanyversion) {
1368                     $unavailablelistitem = html_writer::link('https://moodle.org/plugins/view.php?plugin='.$component,
1369                         '<strong>'.$remoteinfoanyversion->name.'</strong>');
1370                     if ($remoteinfoanyversion->version) {
1371                         $unavailablelistitem .= ' ('.$component.' &gt; '.$remoteinfoanyversion->version->version.')';
1372                     } else {
1373                         $unavailablelistitem .= ' ('.$component.')';
1374                     }
1375                     $unavailablelist[] = $unavailablelistitem;
1376                 }
1377                 $out .= $this->output->render((new \core\output\notification(get_string('misdepsunavaillist', 'core_plugin',
1378                     implode(', ', $unavailablelist))))->set_show_closebutton(false));
1379             }
1380             $out .= $this->output->container_start('plugins-check-dependencies-actions mb-4');
1381             $out .= ' '.html_writer::link(new moodle_url('/admin/tool/installaddon/'),
1382                 get_string('dependencyuploadmissing', 'core_plugin'), array('class' => 'btn btn-secondary'));
1383             $out .= $this->output->container_end(); // End of .plugins-check-dependencies-actions container.
1384         }
1385
1386         if ($available) {
1387             $out .= $this->output->heading(get_string('misdepsavail', 'core_plugin'));
1388             $out .= $this->output->container_start('plugins-check-dependencies-actions mb-2');
1389
1390             $installable = $pluginman->filter_installable($available);
1391             if ($installable) {
1392                 $out .= $this->output->single_button(
1393                     new moodle_url($this->page->url, array('installdepx' => 1)),
1394                     get_string('dependencyinstallmissing', 'core_plugin', count($installable)),
1395                     'post',
1396                     array('class' => 'singlebutton dependencyinstallmissing d-inline-block me-1')
1397                 );
1398             }
1399
1400             $out .= html_writer::div(html_writer::link(new moodle_url('/admin/tool/installaddon/'),
1401                 get_string('dependencyuploadmissing', 'core_plugin'), array('class' => 'btn btn-link')),
1402                 'dependencyuploadmissing d-inline-block me-1');
1403
1404             $out .= $this->output->container_end(); // End of .plugins-check-dependencies-actions container.
1405
1406             $out .= $this->available_missing_dependencies_list($pluginman, $available);
1407         }
1408
1409         $out .= $this->output->container_end(); // End of .plugins-check-dependencies container.
1410
1411         return $out;
1412     }
1413
1414     /**
1415      * Displays the list if available missing dependencies.
1416      *
1417      * @param core_plugin_manager $pluginman
1418      * @param array $dependencies
1419      * @return string
1420      */
1421     protected function available_missing_dependencies_list(core_plugin_manager $pluginman, array $dependencies) {
1422         global $CFG;
1423
1424         $table = new html_table();
1425         $table->id = 'plugins-check-available-dependencies';
1426         $table->head = array(
1427             get_string('displayname', 'core_plugin'),
1428             get_string('release', 'core_plugin'),
1429             get_string('version', 'core_plugin'),
1430             get_string('supportedmoodleversions', 'core_plugin'),
1431             get_string('info', 'core'),
1432         );
1433         $table->colclasses = array('displayname', 'release', 'version', 'supportedmoodleversions', 'info');
1434         $table->data = array();
1435
1436         foreach ($dependencies as $plugin) {
1437
1438             $supportedmoodles = array();
1439             foreach ($plugin->version->supportedmoodles as $moodle) {
1440                 if ($CFG->branch == str_replace('.', '', $moodle->release)) {
1441                     $supportedmoodles[] = html_writer::span($moodle->release, 'badge bg-success text-white');
1442                 } else {
1443                     $supportedmoodles[] = html_writer::span($moodle->release, 'badge bg-light text-dark');
1444                 }
1445             }
1446
1447             $requriedby = $pluginman->other_plugins_that_require($plugin->component);
1448             if ($requriedby) {
1449                 foreach ($requriedby as $ix => $val) {
1450                     $inf = $pluginman->get_plugin_info($val);
1451                     if ($inf) {
1452                         $requriedby[$ix] = $inf->displayname.' ('.$inf->component.')';
1453                     }
1454                 }
1455                 $info = html_writer::div(
1456                     get_string('requiredby', 'core_plugin', implode(', ', $requriedby)),
1457                     'requiredby mb-1'
1458                 );
1459             } else {
1460                 $info = '';
1461             }
1462
1463             $info .= $this->output->container_start('actions');
1464
1465             $info .= html_writer::div(
1466                 html_writer::link('https://moodle.org/plugins/view.php?plugin='.$plugin->component,
1467                     get_string('misdepinfoplugin', 'core_plugin')),
1468                 'misdepinfoplugin d-inline-block me-3 mb-1'
1469             );
1470
1471             $info .= html_writer::div(
1472                 html_writer::link('https://moodle.org/plugins/pluginversion.php?id='.$plugin->version->id,
1473                     get_string('misdepinfoversion', 'core_plugin')),
1474                 'misdepinfoversion d-inline-block me-3 mb-1'
1475             );
1476
1477             $info .= html_writer::div(html_writer::link($plugin->version->downloadurl, get_string('download')),
1478                 'misdepdownload d-inline-block me-3 mb-1');
1479
1480             if ($pluginman->is_remote_plugin_installable($plugin->component, $plugin->version->version, $reason)) {
1481                 $info .= $this->output->single_button(
1482                     new moodle_url($this->page->url, array('installdep' => $plugin->component)),
1483                     get_string('dependencyinstall', 'core_plugin'),
1484                     'post',
1485                     array('class' => 'singlebutton dependencyinstall me-3 mb-1')
1486                 );
1487             } else {
1488                 $reasonhelp = $this->info_remote_plugin_not_installable($reason);
1489                 if ($reasonhelp) {
1490                     $info .= html_writer::div($reasonhelp, 'reasonhelp dependencyinstall d-inline-block me-3 mb-1');
1491                 }
1492             }
1493
1494             $info .= $this->output->container_end(); // End of .actions container.
1495
1496             $table->data[] = array(
1497                 html_writer::div($plugin->name, 'name').' '.html_writer::div($plugin->component, 'component text-muted small'),
1498                 $plugin->version->release,
1499                 $plugin->version->version,
1500                 implode(' ', $supportedmoodles),
1501                 $info
1502             );
1503         }
1504
1505         return html_writer::table($table);
1506     }
1507
1508     /**
1509      * Explain why {@link core_plugin_manager::is_remote_plugin_installable()} returned false.
1510      *
1511      * @param string $reason the reason code as returned by the plugin manager
1512      * @return string
1513      */
1514     protected function info_remote_plugin_not_installable($reason) {
1515
1516         if ($reason === 'notwritableplugintype' or $reason === 'notwritableplugin') {
1517             return $this->output->help_icon('notwritable', 'core_plugin', get_string('notwritable', 'core_plugin'));
1518         }
1519
1520         if ($reason === 'remoteunavailable') {
1521             return $this->output->help_icon('notdownloadable', 'core_plugin', get_string('notdownloadable', 'core_plugin'));
1522         }
1523
1524         return false;
1525     }
1526
1527     /**
1528      * Formats the information that needs to go in the 'Requires' column.
1529      * @param \core\plugininfo\base $plugin the plugin we are rendering the row for.
1530      * @param core_plugin_manager $pluginman provides data on all the plugins.
1531      * @param string $version
1532      * @param int $branch the current Moodle branch
1533      * @return string HTML code
1534      */
1535     protected function required_column(\core\plugininfo\base $plugin, core_plugin_manager $pluginman, $version, $branch = null) {
1536
1537         $requires = array();
1538         $displayuploadlink = false;
1539         $displayupdateslink = false;
1540
1541         $requirements = $pluginman->resolve_requirements($plugin, $version, $branch);
1542         foreach ($requirements as $reqname => $reqinfo) {
1543             if ($reqname === 'core') {
1544                 if ($reqinfo->status == $pluginman::REQUIREMENT_STATUS_OK) {
1545                     $class = 'requires-ok text-muted';
1546                     $label = '';
1547                 } else {
1548                     $class = 'requires-failed';
1549                     $label = html_writer::span(get_string('dependencyfails', 'core_plugin'), 'badge bg-danger text-white');
1550                 }
1551
1552                 if ($branch != null && !$plugin->is_core_compatible_satisfied($branch)) {
1553                     $requires[] = html_writer::tag('li',
1554                     html_writer::span(get_string('incompatibleversion', 'core_plugin', $branch), 'dep dep-core').
1555                     ' '.$label, array('class' => $class));
1556
1557                 } else if ($branch != null && $plugin->pluginsupported != null) {
1558                     $requires[] = html_writer::tag('li',
1559                         html_writer::span(get_string('moodlebranch', 'core_plugin',
1560                         array('min' => $plugin->pluginsupported[0], 'max' => $plugin->pluginsupported[1])), 'dep dep-core').
1561                         ' '.$label, array('class' => $class));
1562
1563                 } else if ($reqinfo->reqver != ANY_VERSION) {
1564                     $requires[] = html_writer::tag('li',
1565                         html_writer::span(get_string('moodleversion', 'core_plugin', $plugin->versionrequires), 'dep dep-core').
1566                         ' '.$label, array('class' => $class));
1567                 }
1568
1569             } else {
1570                 $actions = array();
1571
1572                 if ($reqinfo->status == $pluginman::REQUIREMENT_STATUS_OK) {
1573                     $label = '';
1574                     $class = 'requires-ok text-muted';
1575
1576                 } else if ($reqinfo->status == $pluginman::REQUIREMENT_STATUS_MISSING) {
1577                     if ($reqinfo->availability == $pluginman::REQUIREMENT_AVAILABLE) {
1578                         $label = html_writer::span(get_string('dependencymissing', 'core_plugin'),
1579                             'badge bg-warning text-dark');
1580                         $label .= ' '.html_writer::span(get_string('dependencyavailable', 'core_plugin'),
1581                             'badge bg-warning text-dark');
1582                         $class = 'requires-failed requires-missing requires-available';
1583                         $actions[] = html_writer::link(
1584                             new moodle_url('https://moodle.org/plugins/view.php', array('plugin' => $reqname)),
1585                             get_string('misdepinfoplugin', 'core_plugin')
1586                         );
1587
1588                     } else {
1589                         $label = html_writer::span(get_string('dependencymissing', 'core_plugin'), 'badge bg-danger text-white');
1590                         $label .= ' '.html_writer::span(get_string('dependencyunavailable', 'core_plugin'),
1591                             'badge bg-danger text-white');
1592                         $class = 'requires-failed requires-missing requires-unavailable';
1593                     }
1594                     $displayuploadlink = true;
1595
1596                 } else if ($reqinfo->status == $pluginman::REQUIREMENT_STATUS_OUTDATED) {
1597                     if ($reqinfo->availability == $pluginman::REQUIREMENT_AVAILABLE) {
1598                         $label = html_writer::span(get_string('dependencyfails', 'core_plugin'), 'badge bg-warning text-dark');
1599                         $label .= ' '.html_writer::span(get_string('dependencyavailable', 'core_plugin'),
1600                             'badge bg-warning text-dark');
1601                         $class = 'requires-failed requires-outdated requires-available';
1602                         $displayupdateslink = true;
1603
1604                     } else {
1605                         $label = html_writer::span(get_string('dependencyfails', 'core_plugin'), 'badge bg-danger text-white');
1606                         $label .= ' '.html_writer::span(get_string('dependencyunavailable', 'core_plugin'),
1607                             'badge bg-danger text-white');
1608                         $class = 'requires-failed requires-outdated requires-unavailable';
1609                     }
1610                     $displayuploadlink = true;
1611                 }
1612
1613                 if ($reqinfo->reqver != ANY_VERSION) {
1614                     $str = 'otherpluginversion';
1615                 } else {
1616                     $str = 'otherplugin';
1617                 }
1618
1619                 $requires[] = html_writer::tag('li', html_writer::span(
1620                     get_string($str, 'core_plugin', array('component' => $reqname, 'version' => $reqinfo->reqver)),
1621                     'dep dep-plugin').' '.$label.' '.html_writer::span(implode(' | ', $actions), 'actions'),
1622                     array('class' => $class)
1623                 );
1624             }
1625         }
1626
1627         if (!$requires) {
1628             return '';
1629         }
1630
1631         $out = html_writer::tag('ul', implode("\n", $requires), array('class' => 'm-0'));
1632
1633         if ($displayuploadlink) {
1634             $out .= html_writer::div(
1635                 html_writer::link(
1636                     new moodle_url('/admin/tool/installaddon/'),
1637                     get_string('dependencyuploadmissing', 'core_plugin'),
1638                     array('class' => 'btn btn-secondary btn-sm m-1')
1639                 ),
1640                 'dependencyuploadmissing'
1641             );
1642         }
1643
1644         if ($displayupdateslink) {
1645             $out .= html_writer::div(
1646                 html_writer::link(
1647                     new moodle_url($this->page->url, array('sesskey' => sesskey(), 'fetchupdates' => 1)),
1648                     get_string('checkforupdates', 'core_plugin'),
1649                     array('class' => 'btn btn-secondary btn-sm m-1')
1650                 ),
1651                 'checkforupdates'
1652             );
1653         }
1654
1655         // Check if supports is present, and $branch is not in, only if $incompatible check was ok.
1656         if ($plugin->pluginsupported != null && $class == 'requires-ok' && $branch != null) {
1657             if ($pluginman->check_explicitly_supported($plugin, $branch) == $pluginman::VERSION_NOT_SUPPORTED) {
1658                 $out .= html_writer::div(get_string('notsupported', 'core_plugin', $branch));
1659             }
1660         }
1661
1662         return $out;
1663
1664     }
1665
1666     /**
1667      * Prints an overview about the plugins - number of installed, number of extensions etc.
1668      *
1669      * @param core_plugin_manager $pluginman provides information about the plugins
1670      * @param array $options filtering options
1671      * @return string as usually
1672      */
1673     public function plugins_overview_panel(core_plugin_manager $pluginman, array $options = array()) {
1674
1675         $plugininfo = $pluginman->get_plugins();
1676         $this->page->requires->js_call_amd('core_admin/plugins_overview', 'init');
1677
1678         $numtotal = $numextension = $numupdatable = $numinstallable = $nummissing = $numnew = 0;
1679
1680         foreach ($plugininfo as $type => $plugins) {
1681             foreach ($plugins as $name => $plugin) {
1682                 if ($res = $plugin->available_updates()) {
1683                     $numupdatable++;
1684                     foreach ($res as $updateinfo) {
1685                         if ($pluginman->is_remote_plugin_installable($updateinfo->component, $updateinfo->version, $reason, false)) {
1686                             $numinstallable++;
1687                             break;
1688                         }
1689                     }
1690                 }
1691                 if ($plugin->get_status() === core_plugin_manager::PLUGIN_STATUS_MISSING) {
1692                     $nummissing++;
1693                     continue;
1694                 }
1695                 if ($plugin->get_status() === core_plugin_manager::PLUGIN_STATUS_NEW) {
1696                     $numnew++;
1697                 }
1698                 $numtotal++;
1699                 if (!$plugin->is_standard()) {
1700                     $numextension++;
1701                 }
1702             }
1703         }
1704
1705         $infoall = html_writer::link(
1706             $this->page->url,
1707             get_string('overviewall', 'core_plugin'),
1708             ['title' => get_string('filterall', 'core_plugin'), 'data-filterby' => 'all', 'class' => 'active']
1709         ).' '.html_writer::span($numtotal, 'badge number number-all');
1710
1711         $infoext = html_writer::link(
1712             new moodle_url($this->page->url, [], 'additional'),
1713             get_string('overviewext', 'core_plugin'),
1714             ['title' => get_string('filtercontribonly', 'core_plugin'), 'data-filterby' => 'additional']
1715         ).' '.html_writer::span($numextension, 'badge number number-additional');
1716
1717         if ($numupdatable) {
1718             $infoupdatable = html_writer::link(
1719                 new moodle_url($this->page->url, [], 'updatable'),
1720                 get_string('overviewupdatable', 'core_plugin'),
1721                 ['title' => get_string('filterupdatesonly', 'core_plugin'), 'data-filterby' => 'updatable']
1722             ).' '.html_writer::span($numupdatable, 'badge bg-info text-white number number-updatable');
1723         } else {
1724             // No updates, or the notifications disabled.
1725             $infoupdatable = '';
1726         }
1727
1728         if ($numnew) {
1729             $infonew = html_writer::link(
1730                 new moodle_url($this->page->url, [], 'newplugin'),
1731                 get_string('status_new', 'plugin'),
1732                 ['title' => get_string('filternewpluginsonly', 'core_plugin'), 'data-filterby' => 'newplugin']
1733             ).' '.html_writer::span($numnew, 'badge bg-success text-white number number-newplugin');
1734         } else {
1735             $infonew = '';
1736         }
1737
1738         if ($nummissing) {
1739             $infomissing = html_writer::link(
1740                 new moodle_url($this->page->url, [], 'missing'),
1741                 get_string('status_missing', 'plugin'),
1742                 ['title' => get_string('filtermissingonly', 'core_plugin'), 'data-filterby' => 'missing']
1743             ).' '.html_writer::span($nummissing, 'badge bg-danger text-white number number-missing');
1744         } else {
1745             $infomissing = '';
1746         }
1747
1748         $out = html_writer::start_div('', ['id' => 'plugins-overview-panel']);
1749
1750         if ($numinstallable) {
1751             $out .= $this->output->single_button(
1752                 new moodle_url($this->page->url, array('installupdatex' => 1)),
1753                 get_string('updateavailableinstallall', 'core_admin', $numinstallable),
1754                 'post',
1755                 array('class' => 'singlebutton updateavailableinstallall')
1756             );
1757         }
1758
1759         $out .= html_writer::div($infoall, 'info info-all').
1760             html_writer::div($infoext, 'info info-additional').
1761             html_writer::div($infoupdatable, 'info info-updatable').
1762             html_writer::div($infonew, 'info info-newplugin').
1763             html_writer::div($infomissing, 'info info-missing');
1764
1765         $out .= html_writer::end_div(); // End of #plugins-overview-panel block.
1766
1767         return $out;
1768     }
1769
1770     /**
1771      * Displays all known plugins and links to manage them
1772      *
1773      * This default implementation renders all plugins into one big table.
1774      *
1775      * @param core_plugin_manager $pluginman provides information about the plugins.
1776      * @param array $options filtering options
1777      * @return string HTML code
1778      */
1779     public function plugins_control_panel(core_plugin_manager $pluginman, array $options = array()) {
1780
1781         $plugininfo = $pluginman->get_plugins();
1782
1783         $table = new html_table();
1784         $table->id = 'plugins-control-panel';
1785         $table->head = array(
1786             get_string('displayname', 'core_plugin'),
1787             get_string('version', 'core_plugin'),
1788             get_string('availability', 'core_plugin'),
1789             get_string('actions', 'core_plugin'),
1790             get_string('notes','core_plugin'),
1791         );
1792         $table->headspan = array(1, 1, 1, 2, 1);
1793         $table->colclasses = array(
1794             'pluginname', 'version', 'availability', 'settings', 'uninstall', 'notes'
1795         );
1796
1797         foreach ($plugininfo as $type => $plugins) {
1798             $heading = $pluginman->plugintype_name_plural($type);
1799             $pluginclass = core_plugin_manager::resolve_plugininfo_class($type);
1800             if ($manageurl = $pluginclass::get_manage_url()) {
1801                 $heading .= $this->output->action_icon($manageurl, new pix_icon('i/settings',
1802                     get_string('settings', 'core_plugin')));
1803             }
1804             $header = new html_table_cell(html_writer::tag('span', $heading, array('id'=>'plugin_type_cell_'.$type)));
1805             $header->header = true;
1806             $header->colspan = array_sum($table->headspan);
1807             $header = new html_table_row(array($header));
1808             $header->attributes['class'] = 'plugintypeheader type-' . $type;
1809             $table->data[] = $header;
1810
1811             if (empty($plugins)) {
1812                 $msg = new html_table_cell(get_string('noneinstalled', 'core_plugin'));
1813                 $msg->colspan = array_sum($table->headspan);
1814                 $row = new html_table_row(array($msg));
1815                 $row->attributes['class'] .= 'msg msg-noneinstalled';
1816                 $table->data[] = $row;
1817                 continue;
1818             }
1819
1820             foreach ($plugins as $name => $plugin) {
1821                 $component = "{$plugin->type}_{$plugin->name}";
1822
1823                 $row = new html_table_row();
1824                 $row->attributes['class'] = "type-{$plugin->type} name-{$component}";
1825
1826                 $iconidentifier = 'icon';
1827                 if ($plugin->type === 'mod') {
1828                     $iconidentifier = 'monologo';
1829                 }
1830
1831                 if ($this->page->theme->resolve_image_location($iconidentifier, $component, null)) {
1832                     $icon = $this->output->pix_icon($iconidentifier, '', $component, [
1833                         'class' => 'icon pluginicon',
1834                     ]);
1835                 } else {
1836                     $icon = $this->output->spacer();
1837                 }
1838                 $status = $plugin->get_status();
1839                 $row->attributes['class'] .= ' status-'.$status;
1840                 $pluginname  = html_writer::tag('div', $icon.$plugin->displayname, array('class' => 'displayname')).
1841                                html_writer::tag('div', $plugin->component, array('class' => 'componentname'));
1842                 $pluginname  = new html_table_cell($pluginname);
1843
1844                 $version = html_writer::div($plugin->versiondb, 'versionnumber');
1845                 if ((string)$plugin->release !== '') {
1846                     $version = html_writer::div($plugin->release, 'release').$version;
1847                 }
1848                 $version = new html_table_cell($version);
1849
1850                 $isenabled = $plugin->is_enabled();
1851                 if (is_null($isenabled)) {
1852                     $availability = new html_table_cell('');
1853                 } else if ($isenabled) {
1854                     $row->attributes['class'] .= ' enabled';
1855                     $availability = new html_table_cell(get_string('pluginenabled', 'core_plugin'));
1856                 } else {
1857                     $row->attributes['class'] .= ' disabled';
1858                     $availability = new html_table_cell(get_string('plugindisabled', 'core_plugin'));
1859                 }
1860
1861                 $settingsurl = $plugin->get_settings_url();
1862                 if (!is_null($settingsurl)) {
1863                     $settings = html_writer::link($settingsurl, get_string('settings', 'core_plugin'), array('class' => 'settings'));
1864                 } else {
1865                     $settings = '';
1866                 }
1867                 $settings = new html_table_cell($settings);
1868
1869                 if ($uninstallurl = $pluginman->get_uninstall_url($plugin->component, 'overview')) {
1870                     $uninstall = html_writer::link($uninstallurl, get_string('uninstall', 'core_plugin'));
1871                 } else {
1872                     $uninstall = '';
1873                 }
1874                 $uninstall = new html_table_cell($uninstall);
1875
1876                 if ($plugin->is_standard()) {
1877                     $row->attributes['class'] .= ' standard';
1878                     $source = '';
1879                 } else {
1880                     $row->attributes['class'] .= ' additional';
1881                     $source = html_writer::div(get_string('sourceext', 'core_plugin'), 'source badge mr-1 bg-info text-white');
1882                 }
1883
1884                 if ($status === core_plugin_manager::PLUGIN_STATUS_MISSING) {
1885                     $row->attributes['class'] .= ' missing';
1886                     $msg = html_writer::div(get_string('status_missing', 'core_plugin'), 'statusmsg badge bg-danger text-white');
1887                 } else if ($status === core_plugin_manager::PLUGIN_STATUS_NEW) {
1888                     $row->attributes['class'] .= ' newplugin';
1889                     $msg = html_writer::div(get_string('status_new', 'core_plugin'), 'statusmsg badge bg-success text-white');
1890                 } else {
1891                     $msg = '';
1892                 }
1893
1894                 $requriedby = $pluginman->other_plugins_that_require($plugin->component);
1895                 if ($requriedby) {
1896                     $requiredby = html_writer::tag('div', get_string('requiredby', 'core_plugin', implode(', ', $requriedby)),
1897                         array('class' => 'requiredby'));
1898                 } else {
1899                     $requiredby = '';
1900                 }
1901
1902                 $updateinfo = '';
1903                 if (is_array($plugin->available_updates())) {
1904                     $row->attributes['class'] .= ' updatable';
1905                     foreach ($plugin->available_updates() as $availableupdate) {
1906                         $updateinfo .= $this->plugin_available_update_info($pluginman, $availableupdate);
1907                     }
1908                 }
1909
1910                 $notes = new html_table_cell($source.$msg.$requiredby.$updateinfo);
1911
1912                 $row->cells = array(
1913                     $pluginname, $version, $availability, $settings, $uninstall, $notes
1914                 );
1915                 $table->data[] = $row;
1916             }
1917         }
1918
1919         return html_writer::table($table);
1920     }
1921
1922     /**
1923      * Helper method to render the information about the available plugin update
1924      *
1925      * @param core_plugin_manager $pluginman plugin manager instance
1926      * @param \core\update\info $updateinfo information about the available update for the plugin
1927      */
1928     protected function plugin_available_update_info(core_plugin_manager $pluginman, \core\update\info $updateinfo) {
1929
1930         $boxclasses = 'pluginupdateinfo';
1931         $info = array();
1932
1933         if (isset($updateinfo->release)) {
1934             $info[] = html_writer::div(
1935                 get_string('updateavailable_release', 'core_plugin', $updateinfo->release),
1936                 'info release'
1937             );
1938         }
1939
1940         if (isset($updateinfo->maturity)) {
1941             $info[] = html_writer::div(
1942                 get_string('maturity'.$updateinfo->maturity, 'core_admin'),
1943                 'info maturity'
1944             );
1945             $boxclasses .= ' maturity'.$updateinfo->maturity;
1946         }
1947
1948         if (isset($updateinfo->download)) {
1949             $info[] = html_writer::div(
1950                 html_writer::link($updateinfo->download, get_string('download')),
1951                 'info download'
1952             );
1953         }
1954
1955         if (isset($updateinfo->url)) {
1956             $info[] = html_writer::div(
1957                 html_writer::link($updateinfo->url, get_string('updateavailable_moreinfo', 'core_plugin')),
1958                 'info more'
1959             );
1960         }
1961
1962         $box = html_writer::start_div($boxclasses);
1963         $box .= html_writer::div(
1964             get_string('updateavailable', 'core_plugin', $updateinfo->version),
1965             'version'
1966         );
1967         $box .= html_writer::div(
1968             implode(html_writer::span(' ', 'separator'), $info),
1969             'infos'
1970         );
1971
1972         if ($pluginman->is_remote_plugin_installable($updateinfo->component, $updateinfo->version, $reason, false)) {
1973             $box .= $this->output->single_button(
1974                 new moodle_url($this->page->url, array('installupdate' => $updateinfo->component,
1975                     'installupdateversion' => $updateinfo->version)),
1976                 get_string('updateavailableinstall', 'core_admin'),
1977                 'post',
1978                 array('class' => 'singlebutton updateavailableinstall')
1979             );
1980         } else {
1981             $reasonhelp = $this->info_remote_plugin_not_installable($reason);
1982             if ($reasonhelp) {
1983                 $box .= html_writer::div($reasonhelp, 'reasonhelp updateavailableinstall');
1984             }
1985         }
1986         $box .= html_writer::end_div();
1987
1988         return $box;
1989     }
1990
1991     /**
1992      * This function will render one beautiful table with all the environmental
1993      * configuration and how it suits Moodle needs.
1994      *
1995      * @param boolean $result final result of the check (true/false)
1996      * @param environment_results[] $environment_results array of results gathered
1997      * @return string HTML to output.
1998      */
1999     public function environment_check_table($result, $environment_results) {
2000         global $CFG;
2001
2002         // Table headers
2003         $servertable = new html_table();//table for server checks
2004         $servertable->head  = array(
2005             get_string('name'),
2006             get_string('info'),
2007             get_string('report'),
2008             get_string('plugin'),
2009             get_string('status'),
2010         );
2011         $servertable->colclasses = array('centeralign name', 'centeralign info', 'leftalign report', 'leftalign plugin', 'centeralign status');
2012         $servertable->attributes['class'] = 'admintable environmenttable generaltable table-sm';
2013         $servertable->id = 'serverstatus';
2014
2015         $serverdata = array('ok'=>array(), 'warn'=>array(), 'error'=>array());
2016
2017         $othertable = new html_table();//table for custom checks
2018         $othertable->head  = array(
2019             get_string('info'),
2020             get_string('report'),
2021             get_string('plugin'),
2022             get_string('status'),
2023         );
2024         $othertable->colclasses = array('aligncenter info', 'alignleft report', 'alignleft plugin', 'aligncenter status');
2025         $othertable->attributes['class'] = 'admintable environmenttable generaltable table-sm';
2026         $othertable->id = 'otherserverstatus';
2027
2028         $otherdata = array('ok'=>array(), 'warn'=>array(), 'error'=>array());
2029
2030         // Iterate over each environment_result
2031         $continue = true;
2032         foreach ($environment_results as $environment_result) {
2033             $errorline   = false;
2034             $warningline = false;
2035             $stringtouse = '';
2036             if ($continue) {
2037                 $type = $environment_result->getPart();
2038                 $info = $environment_result->getInfo();
2039                 $status = $environment_result->getStatus();
2040                 $plugin = $environment_result->getPluginName();
2041                 $error_code = $environment_result->getErrorCode();
2042                 // Process Report field
2043                 $rec = new stdClass();
2044                 // Something has gone wrong at parsing time
2045                 if ($error_code) {
2046                     $stringtouse = 'environmentxmlerror';
2047                     $rec->error_code = $error_code;
2048                     $status = get_string('error');
2049                     $errorline = true;
2050                     $continue = false;
2051                 }
2052
2053                 if ($continue) {
2054                     if ($rec->needed = $environment_result->getNeededVersion()) {
2055                         // We are comparing versions
2056                         $rec->current = $environment_result->getCurrentVersion();
2057                         if ($environment_result->getLevel() == 'required') {
2058                             $stringtouse = 'environmentrequireversion';
2059                         } else {
2060                             $stringtouse = 'environmentrecommendversion';
2061                         }
2062
2063                     } else if ($environment_result->getPart() == 'custom_check') {
2064                         // We are checking installed & enabled things
2065                         if ($environment_result->getLevel() == 'required') {
2066                             $stringtouse = 'environmentrequirecustomcheck';
2067                         } else if ($environment_result->getLevel() == 'optional') {
2068                             $stringtouse = 'environmentrecommendcustomcheck';
2069                         } else {
2070                             $stringtouse = 'environmentshouldfixcustomcheck';
2071                         }
2072
2073                     } else if ($environment_result->getPart() == 'php_setting') {
2074                         if ($status) {
2075                             $stringtouse = 'environmentsettingok';
2076                         } else if ($environment_result->getLevel() == 'required') {
2077                             $stringtouse = 'environmentmustfixsetting';
2078                         } else {
2079                             $stringtouse = 'environmentshouldfixsetting';
2080                         }
2081
2082                     } else {
2083                         if ($environment_result->getLevel() == 'required') {
2084                             $stringtouse = 'environmentrequireinstall';
2085                         } else {
2086                             $stringtouse = 'environmentrecommendinstall';
2087                         }
2088                     }
2089
2090                     // Calculate the status value
2091                     if ($environment_result->getBypassStr() != '') {            //Handle bypassed result (warning)
2092                         $status = get_string('bypassed');
2093                         $warningline = true;
2094                     } else if ($environment_result->getRestrictStr() != '') {   //Handle restricted result (error)
2095                         $status = get_string('restricted');
2096                         $errorline = true;
2097                     } else {
2098                         if ($status) {                                          //Handle ok result (ok)
2099                             $status = get_string('statusok');
2100                         } else {
2101                             // Handle check result (warning).
2102                             if (in_array($environment_result->getLevel(), ['optional', 'recommended'])) {
2103                                 $status = get_string('check');
2104                                 $warningline = true;
2105                             } else {                                            //Handle error result (error)
2106                                 $status = get_string('check');
2107                                 $errorline = true;
2108                             }
2109                         }
2110                     }
2111                 }
2112
2113                 // Build the text
2114                 $linkparts = array();
2115                 $linkparts[] = 'admin/environment';
2116                 $linkparts[] = $type;
2117                 if (!empty($info)){
2118                    $linkparts[] = $info;
2119                 }
2120                 // Plugin environments do not have docs pages yet.
2121                 if (empty($CFG->docroot) or $environment_result->plugin) {
2122                     $report = get_string($stringtouse, 'admin', $rec);
2123                 } else {
2124                     $report = $this->doc_link(join('/', $linkparts), get_string($stringtouse, 'admin', $rec), true);
2125                 }
2126                 // Enclose report text in div so feedback text will be displayed underneath it.
2127                 $report = html_writer::div($report);
2128
2129                 // Format error or warning line
2130                 if ($errorline) {
2131                     $messagetype = 'error';
2132                     $statusclass = 'bg-danger text-white';
2133                 } else if ($warningline) {
2134                     $messagetype = 'warn';
2135                     $statusclass = 'bg-warning text-dark';
2136                 } else {
2137                     $messagetype = 'ok';
2138                     $statusclass = 'bg-success text-white';
2139                 }
2140                 $status = html_writer::span($status, 'badge ' . $statusclass);
2141                 // Here we'll store all the feedback found
2142                 $feedbacktext = '';
2143                 // Append the feedback if there is some
2144                 $feedbacktext .= $environment_result->strToReport($environment_result->getFeedbackStr(), $messagetype);
2145                 //Append the bypass if there is some
2146                 $feedbacktext .= $environment_result->strToReport($environment_result->getBypassStr(), 'warn');
2147                 //Append the restrict if there is some
2148                 $feedbacktext .= $environment_result->strToReport($environment_result->getRestrictStr(), 'error');
2149
2150                 $report .= $feedbacktext;
2151
2152                 // Add the row to the table
2153                 if ($environment_result->getPart() == 'custom_check'){
2154                     $otherdata[$messagetype][] = array ($info, $report, $plugin, $status);
2155                 } else {
2156                     $serverdata[$messagetype][] = array ($type, $info, $report, $plugin, $status);
2157                 }
2158             }
2159         }
2160
2161         //put errors first in
2162         $servertable->data = array_merge($serverdata['error'], $serverdata['warn'], $serverdata['ok']);
2163         $othertable->data = array_merge($otherdata['error'], $otherdata['warn'], $otherdata['ok']);
2164
2165         // Print table
2166         $output = '';
2167         $output .= $this->heading(get_string('serverchecks', 'admin'));
2168         $output .= html_writer::table($servertable);
2169         if (count($othertable->data)){
2170             $output .= $this->heading(get_string('customcheck', 'admin'));
2171             $output .= html_writer::table($othertable);
2172         }
2173
2174         // Finally, if any error has happened, print the summary box
2175         if (!$result) {
2176             $output .= $this->box(get_string('environmenterrortodo', 'admin'), 'environmentbox errorbox');
2177         }
2178
2179         return $output;
2180     }
2181
2182     /**
2183      * Render a simple page for providing the upgrade key.
2184      *
2185      * @param moodle_url|string $url
2186      * @return string
2187      */
2188     public function upgradekey_form_page($url) {
2189
2190         $output = '';
2191         $output .= $this->header();
2192         $output .= $this->container_start('upgradekeyreq');
2193         $output .= $this->heading(get_string('upgradekeyreq', 'core_admin'));
2194         $output .= html_writer::start_tag('form', array('method' => 'POST', 'action' => $url));
2195         $output .= html_writer::empty_tag('input', [
2196             'name' => 'upgradekey',
2197             'type' => 'password',
2198             'class' => 'form-control w-auto',
2199         ]);
2200         $output .= html_writer::empty_tag('input', [
2201             'type' => 'submit',
2202             'value' => get_string('submit'),
2203             'class' => 'btn btn-primary mt-3',
2204         ]);
2205         $output .= html_writer::end_tag('form');
2206         $output .= $this->container_end();
2207         $output .= $this->footer();
2208
2209         return $output;
2210     }
2211
2212     /**
2213      * Display message about the benefits of registering on Moodle.org
2214      *
2215      * @return string
2216      */
2217     public function moodleorg_registration_message() {
2218         $a = new stdClass();
2219         $a->moreinformation = '#id_sitestats'; // More information anchor.
2220         $a->moodleapp = HUB_MOODLEORGHUBURL . '/solutions/moodle-app/';
2221         $out = format_text(get_string('registerwithmoodleorginfo', 'core_hub', $a), FORMAT_MARKDOWN);
2222
2223         $out .= html_writer::link(
2224             HUB_MOODLEORGHUBURL,
2225             $this->output->pix_icon('i/stats', '').' '.get_string('registerwithmoodleorginfostats', 'core_hub'),
2226             ['class' => 'btn btn-link', 'role' => 'opener', 'target' => '_href']
2227         );
2228
2229         $out .= html_writer::link(
2230             HUB_MOODLEORGHUBURL.'/sites',
2231             $this->output->pix_icon('i/location', '').' '.get_string('registerwithmoodleorginfosites', 'core_hub'),
2232             ['class' => 'btn btn-link', 'role' => 'opener', 'target' => '_href']
2233         );
2234
2235         return $this->output->box($out);
2236     }
2237
2238     /**
2239      * Display message about benefits of enabling the user feedback feature.
2240      *
2241      * @param bool $showfeedbackencouragement Whether the encouragement content should be displayed or not
2242      * @return string
2243      */
2244     protected function userfeedback_encouragement(bool $showfeedbackencouragement): string {
2245         $output = '';
2246
2247         if ($showfeedbackencouragement) {
2248             $settingslink = new moodle_url('/admin/settings.php', ['section' => 'userfeedback']);
2249             $output .= $this->warning(get_string('userfeedbackencouragement', 'admin', $settingslink->out()), 'info');
2250         }
2251
2252         return $output;
2253     }
2254
2255     /**
2256      * Display a warning about the deprecation of Mnet.
2257      *
2258      * @param string $xmlrpcwarning The warning message
2259      * @return string HTML to output.
2260      */
2261     protected function mnet_deprecation_warning($xmlrpcwarning) {
2262         if (empty($xmlrpcwarning)) {
2263             return '';
2264         }
2265
2266         return $this->warning($xmlrpcwarning);
2267     }
2268
2269     /**
2270      * Renders the theme selector list.
2271      *
2272      * @param core_admin\output\theme_selector $themeselector
2273      * @return string HTML
2274      */
2275     public function theme_selector_list(core_admin\output\theme_selector $themeselector): string {
2276         $renderable = $themeselector->export_for_template($this);
2277         return $this->render_from_template('core_admin/themeselector/theme_selector', $renderable);
2278     }
2279 }