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