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See Release Notes

  • Bug fixes for general core bugs in 4.2.x will end 22 April 2024 (12 months).
  • Bug fixes for security issues in 4.2.x will end 7 October 2024 (18 months).
  • PHP version: minimum PHP 8.0.0 Note: minimum PHP version has increased since Moodle 4.1. PHP 8.1.x is supported too.
/admin/ -> renderer.php (source)

Differences Between: [Versions 310 and 402] [Versions 311 and 402] [Versions 39 and 402] [Versions 400 and 402] [Versions 401 and 402]

   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'), 'sourcetext badge badge-secondary');
1115                  } else {
1116                      $row->attributes['class'] .= ' extension';
1117                      $sourcelabel = html_writer::span(get_string('sourceext', 'core_plugin'), 'sourcetext badge badge-info');
1118                  }
1119  
1120                  $coredependency = $plugin->is_core_dependency_satisfied($version);
1121                  $incompatibledependency = $plugin->is_core_compatible_satisfied($CFG->branch);
1122  
1123                  $otherpluginsdependencies = $pluginman->are_dependencies_satisfied($plugin->get_other_required_plugins());
1124                  $dependenciesok = $coredependency && $otherpluginsdependencies && $incompatibledependency;
1125  
1126                  $statuscode = $plugin->get_status();
1127                  $row->attributes['class'] .= ' status-' . $statuscode;
1128                  $statusclass = 'statustext badge ';
1129                  switch ($statuscode) {
1130                      case core_plugin_manager::PLUGIN_STATUS_NEW:
1131                          $statusclass .= $dependenciesok ? 'badge-success' : 'badge-warning';
1132                          break;
1133                      case core_plugin_manager::PLUGIN_STATUS_UPGRADE:
1134                          $statusclass .= $dependenciesok ? 'badge-info' : 'badge-warning';
1135                          break;
1136                      case core_plugin_manager::PLUGIN_STATUS_MISSING:
1137                      case core_plugin_manager::PLUGIN_STATUS_DOWNGRADE:
1138                      case core_plugin_manager::PLUGIN_STATUS_DELETE:
1139                          $statusclass .= 'badge-danger';
1140                          break;
1141                      case core_plugin_manager::PLUGIN_STATUS_NODB:
1142                      case core_plugin_manager::PLUGIN_STATUS_UPTODATE:
1143                          $statusclass .= $dependenciesok ? 'badge-light' : 'badge-warning';
1144                          break;
1145                  }
1146                  $status = html_writer::span(get_string('status_' . $statuscode, 'core_plugin'), $statusclass);
1147  
1148                  if (!empty($installabortable[$plugin->component])) {
1149                      $status .= $this->output->single_button(
1150                          new moodle_url($this->page->url, array('abortinstall' => $plugin->component, 'confirmplugincheck' => 0)),
1151                          get_string('cancelinstallone', 'core_plugin'),
1152                          'post',
1153                          array('class' => 'actionbutton cancelinstallone d-block mt-1')
1154                      );
1155                  }
1156  
1157                  if (!empty($upgradeabortable[$plugin->component])) {
1158                      $status .= $this->output->single_button(
1159                          new moodle_url($this->page->url, array('abortupgrade' => $plugin->component)),
1160                          get_string('cancelupgradeone', 'core_plugin'),
1161                          'post',
1162                          array('class' => 'actionbutton cancelupgradeone d-block mt-1')
1163                      );
1164                  }
1165  
1166                  $availableupdates = $plugin->available_updates();
1167                  if (!empty($availableupdates)) {
1168                      foreach ($availableupdates as $availableupdate) {
1169                          $status .= $this->plugin_available_update_info($pluginman, $availableupdate);
1170                      }
1171                  }
1172  
1173                  $status = new html_table_cell($sourcelabel.' '.$status);
1174                  if ($plugin->pluginsupported != null) {
1175                      $requires = new html_table_cell($this->required_column($plugin, $pluginman, $version, $CFG->branch));
1176                  } else {
1177                      $requires = new html_table_cell($this->required_column($plugin, $pluginman, $version));
1178                  }
1179  
1180                  $statusisboring = in_array($statuscode, array(
1181                          core_plugin_manager::PLUGIN_STATUS_NODB, core_plugin_manager::PLUGIN_STATUS_UPTODATE));
1182  
1183                  if ($options['xdep']) {
1184                      // we want to see only plugins with failed dependencies
1185                      if ($dependenciesok) {
1186                          continue;
1187                      }
1188  
1189                  } else if ($statusisboring and $dependenciesok and empty($availableupdates)) {
1190                      // no change is going to happen to the plugin - display it only
1191                      // if the user wants to see the full list
1192                      if (empty($options['full'])) {
1193                          continue;
1194                      }
1195  
1196                  } else {
1197                      $sumattention++;
1198                  }
1199  
1200                  // The plugin should be displayed.
1201                  $numdisplayed[$type]++;
1202                  $row->cells = array($displayname, $versiondb, $versiondisk, $requires, $status);
1203                  $plugintyperows[] = $row;
1204              }
1205  
1206              if (empty($numdisplayed[$type]) and empty($options['full'])) {
1207                  continue;
1208              }
1209  
1210              $table->data[] = $header;
1211              $table->data = array_merge($table->data, $plugintyperows);
1212          }
1213  
1214          // Total number of displayed plugins.
1215          $sumdisplayed = array_sum($numdisplayed);
1216  
1217          if ($options['xdep']) {
1218              // At the plugins dependencies check page, display the table only.
1219              return html_writer::table($table);
1220          }
1221  
1222          $out = $this->output->container_start('', 'plugins-check-info');
1223  
1224          if ($sumdisplayed == 0) {
1225              $out .= $this->output->heading(get_string('pluginchecknone', 'core_plugin'));
1226  
1227          } else {
1228              if (empty($options['full'])) {
1229                  $out .= $this->output->heading(get_string('plugincheckattention', 'core_plugin'));
1230              } else {
1231                  $out .= $this->output->heading(get_string('plugincheckall', 'core_plugin'));
1232              }
1233          }
1234  
1235          $out .= $this->output->container_start('actions mb-2');
1236  
1237          $installableupdates = $pluginman->filter_installable($pluginman->available_updates());
1238          if ($installableupdates) {
1239              $out .= $this->output->single_button(
1240                  new moodle_url($this->page->url, array('installupdatex' => 1)),
1241                  get_string('updateavailableinstallall', 'core_admin', count($installableupdates)),
1242                  'post',
1243                  array('class' => 'singlebutton updateavailableinstallall mr-1')
1244              );
1245          }
1246  
1247          if ($installabortable) {
1248              $out .= $this->output->single_button(
1249                  new moodle_url($this->page->url, array('abortinstallx' => 1, 'confirmplugincheck' => 0)),
1250                  get_string('cancelinstallall', 'core_plugin', count($installabortable)),
1251                  'post',
1252                  array('class' => 'singlebutton cancelinstallall mr-1')
1253              );
1254          }
1255  
1256          if ($upgradeabortable) {
1257              $out .= $this->output->single_button(
1258                  new moodle_url($this->page->url, array('abortupgradex' => 1)),
1259                  get_string('cancelupgradeall', 'core_plugin', count($upgradeabortable)),
1260                  'post',
1261                  array('class' => 'singlebutton cancelupgradeall mr-1')
1262              );
1263          }
1264  
1265          $out .= html_writer::div(html_writer::link(new moodle_url($this->page->url, array('showallplugins' => 0)),
1266              get_string('plugincheckattention', 'core_plugin')).' '.html_writer::span($sumattention, 'badge badge-light'),
1267              'btn btn-link mr-1');
1268  
1269          $out .= html_writer::div(html_writer::link(new moodle_url($this->page->url, array('showallplugins' => 1)),
1270              get_string('plugincheckall', 'core_plugin')).' '.html_writer::span($sumtotal, 'badge badge-light'),
1271              'btn btn-link mr-1');
1272  
1273          $out .= $this->output->container_end(); // End of .actions container.
1274          $out .= $this->output->container_end(); // End of #plugins-check-info container.
1275  
1276          if ($sumdisplayed > 0 or $options['full']) {
1277              $out .= html_writer::table($table);
1278          }
1279  
1280          return $out;
1281      }
1282  
1283      /**
1284       * Display the continue / cancel widgets for the plugins management pages.
1285       *
1286       * @param null|moodle_url $continue URL for the continue button, should it be displayed
1287       * @param null|moodle_url $cancel URL for the cancel link, defaults to the current page
1288       * @return string HTML
1289       */
1290      public function plugins_management_confirm_buttons(moodle_url $continue=null, moodle_url $cancel=null) {
1291  
1292          $out = html_writer::start_div('plugins-management-confirm-buttons');
1293  
1294          if (!empty($continue)) {
1295              $out .= $this->output->single_button($continue, get_string('continue'), 'post', array('class' => 'continue'));
1296          }
1297  
1298          if (empty($cancel)) {
1299              $cancel = $this->page->url;
1300          }
1301          $out .= html_writer::div(html_writer::link($cancel, get_string('cancel')), 'cancel');
1302  
1303          return $out;
1304      }
1305  
1306      /**
1307       * Displays the information about missing dependencies
1308       *
1309       * @param core_plugin_manager $pluginman
1310       * @return string
1311       */
1312      protected function missing_dependencies(core_plugin_manager $pluginman) {
1313  
1314          $dependencies = $pluginman->missing_dependencies();
1315  
1316          if (empty($dependencies)) {
1317              return '';
1318          }
1319  
1320          $available = array();
1321          $unavailable = array();
1322          $unknown = array();
1323  
1324          foreach ($dependencies as $component => $remoteinfo) {
1325              if ($remoteinfo === false) {
1326                  // The required version is not available. Let us check if there
1327                  // is at least some version in the plugins directory.
1328                  $remoteinfoanyversion = $pluginman->get_remote_plugin_info($component, ANY_VERSION, false);
1329                  if ($remoteinfoanyversion === false) {
1330                      $unknown[$component] = $component;
1331                  } else {
1332                      $unavailable[$component] = $remoteinfoanyversion;
1333                  }
1334              } else {
1335                  $available[$component] = $remoteinfo;
1336              }
1337          }
1338  
1339          $out  = $this->output->container_start('plugins-check-dependencies mb-4');
1340  
1341          if ($unavailable or $unknown) {
1342              $out .= $this->output->heading(get_string('misdepsunavail', 'core_plugin'));
1343              if ($unknown) {
1344                  $out .= $this->output->render((new \core\output\notification(get_string('misdepsunknownlist', 'core_plugin',
1345                      implode(', ', $unknown))))->set_show_closebutton(false));
1346              }
1347              if ($unavailable) {
1348                  $unavailablelist = array();
1349                  foreach ($unavailable as $component => $remoteinfoanyversion) {
1350                      $unavailablelistitem = html_writer::link('https://moodle.org/plugins/view.php?plugin='.$component,
1351                          '<strong>'.$remoteinfoanyversion->name.'</strong>');
1352                      if ($remoteinfoanyversion->version) {
1353                          $unavailablelistitem .= ' ('.$component.' &gt; '.$remoteinfoanyversion->version->version.')';
1354                      } else {
1355                          $unavailablelistitem .= ' ('.$component.')';
1356                      }
1357                      $unavailablelist[] = $unavailablelistitem;
1358                  }
1359                  $out .= $this->output->render((new \core\output\notification(get_string('misdepsunavaillist', 'core_plugin',
1360                      implode(', ', $unavailablelist))))->set_show_closebutton(false));
1361              }
1362              $out .= $this->output->container_start('plugins-check-dependencies-actions mb-4');
1363              $out .= ' '.html_writer::link(new moodle_url('/admin/tool/installaddon/'),
1364                  get_string('dependencyuploadmissing', 'core_plugin'), array('class' => 'btn btn-secondary'));
1365              $out .= $this->output->container_end(); // End of .plugins-check-dependencies-actions container.
1366          }
1367  
1368          if ($available) {
1369              $out .= $this->output->heading(get_string('misdepsavail', 'core_plugin'));
1370              $out .= $this->output->container_start('plugins-check-dependencies-actions mb-2');
1371  
1372              $installable = $pluginman->filter_installable($available);
1373              if ($installable) {
1374                  $out .= $this->output->single_button(
1375                      new moodle_url($this->page->url, array('installdepx' => 1)),
1376                      get_string('dependencyinstallmissing', 'core_plugin', count($installable)),
1377                      'post',
1378                      array('class' => 'singlebutton dependencyinstallmissing d-inline-block mr-1')
1379                  );
1380              }
1381  
1382              $out .= html_writer::div(html_writer::link(new moodle_url('/admin/tool/installaddon/'),
1383                  get_string('dependencyuploadmissing', 'core_plugin'), array('class' => 'btn btn-link')),
1384                  'dependencyuploadmissing d-inline-block mr-1');
1385  
1386              $out .= $this->output->container_end(); // End of .plugins-check-dependencies-actions container.
1387  
1388              $out .= $this->available_missing_dependencies_list($pluginman, $available);
1389          }
1390  
1391          $out .= $this->output->container_end(); // End of .plugins-check-dependencies container.
1392  
1393          return $out;
1394      }
1395  
1396      /**
1397       * Displays the list if available missing dependencies.
1398       *
1399       * @param core_plugin_manager $pluginman
1400       * @param array $dependencies
1401       * @return string
1402       */
1403      protected function available_missing_dependencies_list(core_plugin_manager $pluginman, array $dependencies) {
1404          global $CFG;
1405  
1406          $table = new html_table();
1407          $table->id = 'plugins-check-available-dependencies';
1408          $table->head = array(
1409              get_string('displayname', 'core_plugin'),
1410              get_string('release', 'core_plugin'),
1411              get_string('version', 'core_plugin'),
1412              get_string('supportedmoodleversions', 'core_plugin'),
1413              get_string('info', 'core'),
1414          );
1415          $table->colclasses = array('displayname', 'release', 'version', 'supportedmoodleversions', 'info');
1416          $table->data = array();
1417  
1418          foreach ($dependencies as $plugin) {
1419  
1420              $supportedmoodles = array();
1421              foreach ($plugin->version->supportedmoodles as $moodle) {
1422                  if ($CFG->branch == str_replace('.', '', $moodle->release)) {
1423                      $supportedmoodles[] = html_writer::span($moodle->release, 'badge badge-success');
1424                  } else {
1425                      $supportedmoodles[] = html_writer::span($moodle->release, 'badge badge-light');
1426                  }
1427              }
1428  
1429              $requriedby = $pluginman->other_plugins_that_require($plugin->component);
1430              if ($requriedby) {
1431                  foreach ($requriedby as $ix => $val) {
1432                      $inf = $pluginman->get_plugin_info($val);
1433                      if ($inf) {
1434                          $requriedby[$ix] = $inf->displayname.' ('.$inf->component.')';
1435                      }
1436                  }
1437                  $info = html_writer::div(
1438                      get_string('requiredby', 'core_plugin', implode(', ', $requriedby)),
1439                      'requiredby mb-1'
1440                  );
1441              } else {
1442                  $info = '';
1443              }
1444  
1445              $info .= $this->output->container_start('actions');
1446  
1447              $info .= html_writer::div(
1448                  html_writer::link('https://moodle.org/plugins/view.php?plugin='.$plugin->component,
1449                      get_string('misdepinfoplugin', 'core_plugin')),
1450                  'misdepinfoplugin d-inline-block mr-3 mb-1'
1451              );
1452  
1453              $info .= html_writer::div(
1454                  html_writer::link('https://moodle.org/plugins/pluginversion.php?id='.$plugin->version->id,
1455                      get_string('misdepinfoversion', 'core_plugin')),
1456                  'misdepinfoversion d-inline-block mr-3 mb-1'
1457              );
1458  
1459              $info .= html_writer::div(html_writer::link($plugin->version->downloadurl, get_string('download')),
1460                  'misdepdownload d-inline-block mr-3 mb-1');
1461  
1462              if ($pluginman->is_remote_plugin_installable($plugin->component, $plugin->version->version, $reason)) {
1463                  $info .= $this->output->single_button(
1464                      new moodle_url($this->page->url, array('installdep' => $plugin->component)),
1465                      get_string('dependencyinstall', 'core_plugin'),
1466                      'post',
1467                      array('class' => 'singlebutton dependencyinstall mr-3 mb-1')
1468                  );
1469              } else {
1470                  $reasonhelp = $this->info_remote_plugin_not_installable($reason);
1471                  if ($reasonhelp) {
1472                      $info .= html_writer::div($reasonhelp, 'reasonhelp dependencyinstall d-inline-block mr-3 mb-1');
1473                  }
1474              }
1475  
1476              $info .= $this->output->container_end(); // End of .actions container.
1477  
1478              $table->data[] = array(
1479                  html_writer::div($plugin->name, 'name').' '.html_writer::div($plugin->component, 'component text-muted small'),
1480                  $plugin->version->release,
1481                  $plugin->version->version,
1482                  implode(' ', $supportedmoodles),
1483                  $info
1484              );
1485          }
1486  
1487          return html_writer::table($table);
1488      }
1489  
1490      /**
1491       * Explain why {@link core_plugin_manager::is_remote_plugin_installable()} returned false.
1492       *
1493       * @param string $reason the reason code as returned by the plugin manager
1494       * @return string
1495       */
1496      protected function info_remote_plugin_not_installable($reason) {
1497  
1498          if ($reason === 'notwritableplugintype' or $reason === 'notwritableplugin') {
1499              return $this->output->help_icon('notwritable', 'core_plugin', get_string('notwritable', 'core_plugin'));
1500          }
1501  
1502          if ($reason === 'remoteunavailable') {
1503              return $this->output->help_icon('notdownloadable', 'core_plugin', get_string('notdownloadable', 'core_plugin'));
1504          }
1505  
1506          return false;
1507      }
1508  
1509      /**
1510       * Formats the information that needs to go in the 'Requires' column.
1511       * @param \core\plugininfo\base $plugin the plugin we are rendering the row for.
1512       * @param core_plugin_manager $pluginman provides data on all the plugins.
1513       * @param string $version
1514       * @param int $branch the current Moodle branch
1515       * @return string HTML code
1516       */
1517      protected function required_column(\core\plugininfo\base $plugin, core_plugin_manager $pluginman, $version, $branch = null) {
1518  
1519          $requires = array();
1520          $displayuploadlink = false;
1521          $displayupdateslink = false;
1522  
1523          $requirements = $pluginman->resolve_requirements($plugin, $version, $branch);
1524          foreach ($requirements as $reqname => $reqinfo) {
1525              if ($reqname === 'core') {
1526                  if ($reqinfo->status == $pluginman::REQUIREMENT_STATUS_OK) {
1527                      $class = 'requires-ok text-muted';
1528                      $label = '';
1529                  } else {
1530                      $class = 'requires-failed';
1531                      $label = html_writer::span(get_string('dependencyfails', 'core_plugin'), 'badge badge-danger');
1532                  }
1533  
1534                  if ($branch != null && !$plugin->is_core_compatible_satisfied($branch)) {
1535                      $requires[] = html_writer::tag('li',
1536                      html_writer::span(get_string('incompatibleversion', 'core_plugin', $branch), 'dep dep-core').
1537                      ' '.$label, array('class' => $class));
1538  
1539                  } else if ($branch != null && $plugin->pluginsupported != null) {
1540                      $requires[] = html_writer::tag('li',
1541                          html_writer::span(get_string('moodlebranch', 'core_plugin',
1542                          array('min' => $plugin->pluginsupported[0], 'max' => $plugin->pluginsupported[1])), 'dep dep-core').
1543                          ' '.$label, array('class' => $class));
1544  
1545                  } else if ($reqinfo->reqver != ANY_VERSION) {
1546                      $requires[] = html_writer::tag('li',
1547                          html_writer::span(get_string('moodleversion', 'core_plugin', $plugin->versionrequires), 'dep dep-core').
1548                          ' '.$label, array('class' => $class));
1549                  }
1550  
1551              } else {
1552                  $actions = array();
1553  
1554                  if ($reqinfo->status == $pluginman::REQUIREMENT_STATUS_OK) {
1555                      $label = '';
1556                      $class = 'requires-ok text-muted';
1557  
1558                  } else if ($reqinfo->status == $pluginman::REQUIREMENT_STATUS_MISSING) {
1559                      if ($reqinfo->availability == $pluginman::REQUIREMENT_AVAILABLE) {
1560                          $label = html_writer::span(get_string('dependencymissing', 'core_plugin'), 'badge badge-warning');
1561                          $label .= ' '.html_writer::span(get_string('dependencyavailable', 'core_plugin'), 'badge badge-warning');
1562                          $class = 'requires-failed requires-missing requires-available';
1563                          $actions[] = html_writer::link(
1564                              new moodle_url('https://moodle.org/plugins/view.php', array('plugin' => $reqname)),
1565                              get_string('misdepinfoplugin', 'core_plugin')
1566                          );
1567  
1568                      } else {
1569                          $label = html_writer::span(get_string('dependencymissing', 'core_plugin'), 'badge badge-danger');
1570                          $label .= ' '.html_writer::span(get_string('dependencyunavailable', 'core_plugin'),
1571                              'badge badge-danger');
1572                          $class = 'requires-failed requires-missing requires-unavailable';
1573                      }
1574                      $displayuploadlink = true;
1575  
1576                  } else if ($reqinfo->status == $pluginman::REQUIREMENT_STATUS_OUTDATED) {
1577                      if ($reqinfo->availability == $pluginman::REQUIREMENT_AVAILABLE) {
1578                          $label = html_writer::span(get_string('dependencyfails', 'core_plugin'), 'badge badge-warning');
1579                          $label .= ' '.html_writer::span(get_string('dependencyavailable', 'core_plugin'), 'badge badge-warning');
1580                          $class = 'requires-failed requires-outdated requires-available';
1581                          $displayupdateslink = true;
1582  
1583                      } else {
1584                          $label = html_writer::span(get_string('dependencyfails', 'core_plugin'), 'badge badge-danger');
1585                          $label .= ' '.html_writer::span(get_string('dependencyunavailable', 'core_plugin'),
1586                              'badge badge-danger');
1587                          $class = 'requires-failed requires-outdated requires-unavailable';
1588                      }
1589                      $displayuploadlink = true;
1590                  }
1591  
1592                  if ($reqinfo->reqver != ANY_VERSION) {
1593                      $str = 'otherpluginversion';
1594                  } else {
1595                      $str = 'otherplugin';
1596                  }
1597  
1598                  $requires[] = html_writer::tag('li', html_writer::span(
1599                      get_string($str, 'core_plugin', array('component' => $reqname, 'version' => $reqinfo->reqver)),
1600                      'dep dep-plugin').' '.$label.' '.html_writer::span(implode(' | ', $actions), 'actions'),
1601                      array('class' => $class)
1602                  );
1603              }
1604          }
1605  
1606          if (!$requires) {
1607              return '';
1608          }
1609  
1610          $out = html_writer::tag('ul', implode("\n", $requires), array('class' => 'm-0'));
1611  
1612          if ($displayuploadlink) {
1613              $out .= html_writer::div(
1614                  html_writer::link(
1615                      new moodle_url('/admin/tool/installaddon/'),
1616                      get_string('dependencyuploadmissing', 'core_plugin'),
1617                      array('class' => 'btn btn-secondary btn-sm m-1')
1618                  ),
1619                  'dependencyuploadmissing'
1620              );
1621          }
1622  
1623          if ($displayupdateslink) {
1624              $out .= html_writer::div(
1625                  html_writer::link(
1626                      new moodle_url($this->page->url, array('sesskey' => sesskey(), 'fetchupdates' => 1)),
1627                      get_string('checkforupdates', 'core_plugin'),
1628                      array('class' => 'btn btn-secondary btn-sm m-1')
1629                  ),
1630                  'checkforupdates'
1631              );
1632          }
1633  
1634          // Check if supports is present, and $branch is not in, only if $incompatible check was ok.
1635          if ($plugin->pluginsupported != null && $class == 'requires-ok' && $branch != null) {
1636              if ($pluginman->check_explicitly_supported($plugin, $branch) == $pluginman::VERSION_NOT_SUPPORTED) {
1637                  $out .= html_writer::div(get_string('notsupported', 'core_plugin', $branch));
1638              }
1639          }
1640  
1641          return $out;
1642  
1643      }
1644  
1645      /**
1646       * Prints an overview about the plugins - number of installed, number of extensions etc.
1647       *
1648       * @param core_plugin_manager $pluginman provides information about the plugins
1649       * @param array $options filtering options
1650       * @return string as usually
1651       */
1652      public function plugins_overview_panel(core_plugin_manager $pluginman, array $options = array()) {
1653  
1654          $plugininfo = $pluginman->get_plugins();
1655  
1656          $numtotal = $numextension = $numupdatable = $numinstallable = 0;
1657  
1658          foreach ($plugininfo as $type => $plugins) {
1659              foreach ($plugins as $name => $plugin) {
1660                  if ($res = $plugin->available_updates()) {
1661                      $numupdatable++;
1662                      foreach ($res as $updateinfo) {
1663                          if ($pluginman->is_remote_plugin_installable($updateinfo->component, $updateinfo->version, $reason, false)) {
1664                              $numinstallable++;
1665                              break;
1666                          }
1667                      }
1668                  }
1669                  if ($plugin->get_status() === core_plugin_manager::PLUGIN_STATUS_MISSING) {
1670                      continue;
1671                  }
1672                  $numtotal++;
1673                  if (!$plugin->is_standard()) {
1674                      $numextension++;
1675                  }
1676              }
1677          }
1678  
1679          $infoall = html_writer::link(
1680              new moodle_url($this->page->url, array('contribonly' => 0, 'updatesonly' => 0)),
1681              get_string('overviewall', 'core_plugin'),
1682              array('title' => get_string('filterall', 'core_plugin'))
1683          ).' '.html_writer::span($numtotal, 'badge number number-all');
1684  
1685          $infoext = html_writer::link(
1686              new moodle_url($this->page->url, array('contribonly' => 1, 'updatesonly' => 0)),
1687              get_string('overviewext', 'core_plugin'),
1688              array('title' => get_string('filtercontribonly', 'core_plugin'))
1689          ).' '.html_writer::span($numextension, 'badge number number-additional');
1690  
1691          if ($numupdatable) {
1692              $infoupdatable = html_writer::link(
1693                  new moodle_url($this->page->url, array('contribonly' => 0, 'updatesonly' => 1)),
1694                  get_string('overviewupdatable', 'core_plugin'),
1695                  array('title' => get_string('filterupdatesonly', 'core_plugin'))
1696              ).' '.html_writer::span($numupdatable, 'badge badge-info number number-updatable');
1697          } else {
1698              // No updates, or the notifications disabled.
1699              $infoupdatable = '';
1700          }
1701  
1702          $out = html_writer::start_div('', array('id' => 'plugins-overview-panel'));
1703  
1704          if (!empty($options['updatesonly'])) {
1705              $out .= $this->output->heading(get_string('overviewupdatable', 'core_plugin'), 3);
1706          } else if (!empty($options['contribonly'])) {
1707              $out .= $this->output->heading(get_string('overviewext', 'core_plugin'), 3);
1708          }
1709  
1710          if ($numinstallable) {
1711              $out .= $this->output->single_button(
1712                  new moodle_url($this->page->url, array('installupdatex' => 1)),
1713                  get_string('updateavailableinstallall', 'core_admin', $numinstallable),
1714                  'post',
1715                  array('class' => 'singlebutton updateavailableinstallall')
1716              );
1717          }
1718  
1719          $out .= html_writer::div($infoall, 'info info-all').
1720              html_writer::div($infoext, 'info info-ext').
1721              html_writer::div($infoupdatable, 'info info-updatable');
1722  
1723          $out .= html_writer::end_div(); // End of #plugins-overview-panel block.
1724  
1725          return $out;
1726      }
1727  
1728      /**
1729       * Displays all known plugins and links to manage them
1730       *
1731       * This default implementation renders all plugins into one big table.
1732       *
1733       * @param core_plugin_manager $pluginman provides information about the plugins.
1734       * @param array $options filtering options
1735       * @return string HTML code
1736       */
1737      public function plugins_control_panel(core_plugin_manager $pluginman, array $options = array()) {
1738  
1739          $plugininfo = $pluginman->get_plugins();
1740  
1741          // Filter the list of plugins according the options.
1742          if (!empty($options['updatesonly'])) {
1743              $updateable = array();
1744              foreach ($plugininfo as $plugintype => $pluginnames) {
1745                  foreach ($pluginnames as $pluginname => $pluginfo) {
1746                      $pluginavailableupdates = $pluginfo->available_updates();
1747                      if (!empty($pluginavailableupdates)) {
1748                          foreach ($pluginavailableupdates as $pluginavailableupdate) {
1749                              $updateable[$plugintype][$pluginname] = $pluginfo;
1750                          }
1751                      }
1752                  }
1753              }
1754              $plugininfo = $updateable;
1755          }
1756  
1757          if (!empty($options['contribonly'])) {
1758              $contribs = array();
1759              foreach ($plugininfo as $plugintype => $pluginnames) {
1760                  foreach ($pluginnames as $pluginname => $pluginfo) {
1761                      if (!$pluginfo->is_standard()) {
1762                          $contribs[$plugintype][$pluginname] = $pluginfo;
1763                      }
1764                  }
1765              }
1766              $plugininfo = $contribs;
1767          }
1768  
1769          if (empty($plugininfo)) {
1770              return '';
1771          }
1772  
1773          $table = new html_table();
1774          $table->id = 'plugins-control-panel';
1775          $table->head = array(
1776              get_string('displayname', 'core_plugin'),
1777              get_string('version', 'core_plugin'),
1778              get_string('availability', 'core_plugin'),
1779              get_string('actions', 'core_plugin'),
1780              get_string('notes','core_plugin'),
1781          );
1782          $table->headspan = array(1, 1, 1, 2, 1);
1783          $table->colclasses = array(
1784              'pluginname', 'version', 'availability', 'settings', 'uninstall', 'notes'
1785          );
1786  
1787          foreach ($plugininfo as $type => $plugins) {
1788              $heading = $pluginman->plugintype_name_plural($type);
1789              $pluginclass = core_plugin_manager::resolve_plugininfo_class($type);
1790              if ($manageurl = $pluginclass::get_manage_url()) {
1791                  $heading .= $this->output->action_icon($manageurl, new pix_icon('i/settings',
1792                      get_string('settings', 'core_plugin')));
1793              }
1794              $header = new html_table_cell(html_writer::tag('span', $heading, array('id'=>'plugin_type_cell_'.$type)));
1795              $header->header = true;
1796              $header->colspan = array_sum($table->headspan);
1797              $header = new html_table_row(array($header));
1798              $header->attributes['class'] = 'plugintypeheader type-' . $type;
1799              $table->data[] = $header;
1800  
1801              if (empty($plugins)) {
1802                  $msg = new html_table_cell(get_string('noneinstalled', 'core_plugin'));
1803                  $msg->colspan = array_sum($table->headspan);
1804                  $row = new html_table_row(array($msg));
1805                  $row->attributes['class'] .= 'msg msg-noneinstalled';
1806                  $table->data[] = $row;
1807                  continue;
1808              }
1809  
1810              foreach ($plugins as $name => $plugin) {
1811                  $component = "{$plugin->type}_{$plugin->name}";
1812  
1813                  $row = new html_table_row();
1814                  $row->attributes['class'] = "type-{$plugin->type} name-{$component}";
1815  
1816                  $iconidentifier = 'icon';
1817                  if ($plugin->type === 'mod') {
1818                      $iconidentifier = 'monologo';
1819                  }
1820  
1821                  if ($this->page->theme->resolve_image_location($iconidentifier, $component, null)) {
1822                      $icon = $this->output->pix_icon($iconidentifier, '', $component, [
1823                          'class' => 'icon pluginicon',
1824                      ]);
1825                  } else {
1826                      $icon = $this->output->spacer();
1827                  }
1828                  $status = $plugin->get_status();
1829                  $row->attributes['class'] .= ' status-'.$status;
1830                  $pluginname  = html_writer::tag('div', $icon.$plugin->displayname, array('class' => 'displayname')).
1831                                 html_writer::tag('div', $plugin->component, array('class' => 'componentname'));
1832                  $pluginname  = new html_table_cell($pluginname);
1833  
1834                  $version = html_writer::div($plugin->versiondb, 'versionnumber');
1835                  if ((string)$plugin->release !== '') {
1836                      $version = html_writer::div($plugin->release, 'release').$version;
1837                  }
1838                  $version = new html_table_cell($version);
1839  
1840                  $isenabled = $plugin->is_enabled();
1841                  if (is_null($isenabled)) {
1842                      $availability = new html_table_cell('');
1843                  } else if ($isenabled) {
1844                      $row->attributes['class'] .= ' enabled';
1845                      $availability = new html_table_cell(get_string('pluginenabled', 'core_plugin'));
1846                  } else {
1847                      $row->attributes['class'] .= ' disabled';
1848                      $availability = new html_table_cell(get_string('plugindisabled', 'core_plugin'));
1849                  }
1850  
1851                  $settingsurl = $plugin->get_settings_url();
1852                  if (!is_null($settingsurl)) {
1853                      $settings = html_writer::link($settingsurl, get_string('settings', 'core_plugin'), array('class' => 'settings'));
1854                  } else {
1855                      $settings = '';
1856                  }
1857                  $settings = new html_table_cell($settings);
1858  
1859                  if ($uninstallurl = $pluginman->get_uninstall_url($plugin->component, 'overview')) {
1860                      $uninstall = html_writer::link($uninstallurl, get_string('uninstall', 'core_plugin'));
1861                  } else {
1862                      $uninstall = '';
1863                  }
1864                  $uninstall = new html_table_cell($uninstall);
1865  
1866                  if ($plugin->is_standard()) {
1867                      $row->attributes['class'] .= ' standard';
1868                      $source = '';
1869                  } else {
1870                      $row->attributes['class'] .= ' extension';
1871                      $source = html_writer::div(get_string('sourceext', 'core_plugin'), 'source badge badge-info');
1872                  }
1873  
1874                  if ($status === core_plugin_manager::PLUGIN_STATUS_MISSING) {
1875                      $msg = html_writer::div(get_string('status_missing', 'core_plugin'), 'statusmsg badge badge-danger');
1876                  } else if ($status === core_plugin_manager::PLUGIN_STATUS_NEW) {
1877                      $msg = html_writer::div(get_string('status_new', 'core_plugin'), 'statusmsg badge badge-success');
1878                  } else {
1879                      $msg = '';
1880                  }
1881  
1882                  $requriedby = $pluginman->other_plugins_that_require($plugin->component);
1883                  if ($requriedby) {
1884                      $requiredby = html_writer::tag('div', get_string('requiredby', 'core_plugin', implode(', ', $requriedby)),
1885                          array('class' => 'requiredby'));
1886                  } else {
1887                      $requiredby = '';
1888                  }
1889  
1890                  $updateinfo = '';
1891                  if (is_array($plugin->available_updates())) {
1892                      foreach ($plugin->available_updates() as $availableupdate) {
1893                          $updateinfo .= $this->plugin_available_update_info($pluginman, $availableupdate);
1894                      }
1895                  }
1896  
1897                  $notes = new html_table_cell($source.$msg.$requiredby.$updateinfo);
1898  
1899                  $row->cells = array(
1900                      $pluginname, $version, $availability, $settings, $uninstall, $notes
1901                  );
1902                  $table->data[] = $row;
1903              }
1904          }
1905  
1906          return html_writer::table($table);
1907      }
1908  
1909      /**
1910       * Helper method to render the information about the available plugin update
1911       *
1912       * @param core_plugin_manager $pluginman plugin manager instance
1913       * @param \core\update\info $updateinfo information about the available update for the plugin
1914       */
1915      protected function plugin_available_update_info(core_plugin_manager $pluginman, \core\update\info $updateinfo) {
1916  
1917          $boxclasses = 'pluginupdateinfo';
1918          $info = array();
1919  
1920          if (isset($updateinfo->release)) {
1921              $info[] = html_writer::div(
1922                  get_string('updateavailable_release', 'core_plugin', $updateinfo->release),
1923                  'info release'
1924              );
1925          }
1926  
1927          if (isset($updateinfo->maturity)) {
1928              $info[] = html_writer::div(
1929                  get_string('maturity'.$updateinfo->maturity, 'core_admin'),
1930                  'info maturity'
1931              );
1932              $boxclasses .= ' maturity'.$updateinfo->maturity;
1933          }
1934  
1935          if (isset($updateinfo->download)) {
1936              $info[] = html_writer::div(
1937                  html_writer::link($updateinfo->download, get_string('download')),
1938                  'info download'
1939              );
1940          }
1941  
1942          if (isset($updateinfo->url)) {
1943              $info[] = html_writer::div(
1944                  html_writer::link($updateinfo->url, get_string('updateavailable_moreinfo', 'core_plugin')),
1945                  'info more'
1946              );
1947          }
1948  
1949          $box = html_writer::start_div($boxclasses);
1950          $box .= html_writer::div(
1951              get_string('updateavailable', 'core_plugin', $updateinfo->version),
1952              'version'
1953          );
1954          $box .= html_writer::div(
1955              implode(html_writer::span(' ', 'separator'), $info),
1956              'infos'
1957          );
1958  
1959          if ($pluginman->is_remote_plugin_installable($updateinfo->component, $updateinfo->version, $reason, false)) {
1960              $box .= $this->output->single_button(
1961                  new moodle_url($this->page->url, array('installupdate' => $updateinfo->component,
1962                      'installupdateversion' => $updateinfo->version)),
1963                  get_string('updateavailableinstall', 'core_admin'),
1964                  'post',
1965                  array('class' => 'singlebutton updateavailableinstall')
1966              );
1967          } else {
1968              $reasonhelp = $this->info_remote_plugin_not_installable($reason);
1969              if ($reasonhelp) {
1970                  $box .= html_writer::div($reasonhelp, 'reasonhelp updateavailableinstall');
1971              }
1972          }
1973          $box .= html_writer::end_div();
1974  
1975          return $box;
1976      }
1977  
1978      /**
1979       * This function will render one beautiful table with all the environmental
1980       * configuration and how it suits Moodle needs.
1981       *
1982       * @param boolean $result final result of the check (true/false)
1983       * @param environment_results[] $environment_results array of results gathered
1984       * @return string HTML to output.
1985       */
1986      public function environment_check_table($result, $environment_results) {
1987          global $CFG;
1988  
1989          // Table headers
1990          $servertable = new html_table();//table for server checks
1991          $servertable->head  = array(
1992              get_string('name'),
1993              get_string('info'),
1994              get_string('report'),
1995              get_string('plugin'),
1996              get_string('status'),
1997          );
1998          $servertable->colclasses = array('centeralign name', 'centeralign info', 'leftalign report', 'leftalign plugin', 'centeralign status');
1999          $servertable->attributes['class'] = 'admintable environmenttable generaltable table-sm';
2000          $servertable->id = 'serverstatus';
2001  
2002          $serverdata = array('ok'=>array(), 'warn'=>array(), 'error'=>array());
2003  
2004          $othertable = new html_table();//table for custom checks
2005          $othertable->head  = array(
2006              get_string('info'),
2007              get_string('report'),
2008              get_string('plugin'),
2009              get_string('status'),
2010          );
2011          $othertable->colclasses = array('aligncenter info', 'alignleft report', 'alignleft plugin', 'aligncenter status');
2012          $othertable->attributes['class'] = 'admintable environmenttable generaltable table-sm';
2013          $othertable->id = 'otherserverstatus';
2014  
2015          $otherdata = array('ok'=>array(), 'warn'=>array(), 'error'=>array());
2016  
2017          // Iterate over each environment_result
2018          $continue = true;
2019          foreach ($environment_results as $environment_result) {
2020              $errorline   = false;
2021              $warningline = false;
2022              $stringtouse = '';
2023              if ($continue) {
2024                  $type = $environment_result->getPart();
2025                  $info = $environment_result->getInfo();
2026                  $status = $environment_result->getStatus();
2027                  $plugin = $environment_result->getPluginName();
2028                  $error_code = $environment_result->getErrorCode();
2029                  // Process Report field
2030                  $rec = new stdClass();
2031                  // Something has gone wrong at parsing time
2032                  if ($error_code) {
2033                      $stringtouse = 'environmentxmlerror';
2034                      $rec->error_code = $error_code;
2035                      $status = get_string('error');
2036                      $errorline = true;
2037                      $continue = false;
2038                  }
2039  
2040                  if ($continue) {
2041                      if ($rec->needed = $environment_result->getNeededVersion()) {
2042                          // We are comparing versions
2043                          $rec->current = $environment_result->getCurrentVersion();
2044                          if ($environment_result->getLevel() == 'required') {
2045                              $stringtouse = 'environmentrequireversion';
2046                          } else {
2047                              $stringtouse = 'environmentrecommendversion';
2048                          }
2049  
2050                      } else if ($environment_result->getPart() == 'custom_check') {
2051                          // We are checking installed & enabled things
2052                          if ($environment_result->getLevel() == 'required') {
2053                              $stringtouse = 'environmentrequirecustomcheck';
2054                          } else {
2055                              $stringtouse = 'environmentrecommendcustomcheck';
2056                          }
2057  
2058                      } else if ($environment_result->getPart() == 'php_setting') {
2059                          if ($status) {
2060                              $stringtouse = 'environmentsettingok';
2061                          } else if ($environment_result->getLevel() == 'required') {
2062                              $stringtouse = 'environmentmustfixsetting';
2063                          } else {
2064                              $stringtouse = 'environmentshouldfixsetting';
2065                          }
2066  
2067                      } else {
2068                          if ($environment_result->getLevel() == 'required') {
2069                              $stringtouse = 'environmentrequireinstall';
2070                          } else {
2071                              $stringtouse = 'environmentrecommendinstall';
2072                          }
2073                      }
2074  
2075                      // Calculate the status value
2076                      if ($environment_result->getBypassStr() != '') {            //Handle bypassed result (warning)
2077                          $status = get_string('bypassed');
2078                          $warningline = true;
2079                      } else if ($environment_result->getRestrictStr() != '') {   //Handle restricted result (error)
2080                          $status = get_string('restricted');
2081                          $errorline = true;
2082                      } else {
2083                          if ($status) {                                          //Handle ok result (ok)
2084                              $status = get_string('statusok');
2085                          } else {
2086                              if ($environment_result->getLevel() == 'optional') {//Handle check result (warning)
2087                                  $status = get_string('check');
2088                                  $warningline = true;
2089                              } else {                                            //Handle error result (error)
2090                                  $status = get_string('check');
2091                                  $errorline = true;
2092                              }
2093                          }
2094                      }
2095                  }
2096  
2097                  // Build the text
2098                  $linkparts = array();
2099                  $linkparts[] = 'admin/environment';
2100                  $linkparts[] = $type;
2101                  if (!empty($info)){
2102                     $linkparts[] = $info;
2103                  }
2104                  // Plugin environments do not have docs pages yet.
2105                  if (empty($CFG->docroot) or $environment_result->plugin) {
2106                      $report = get_string($stringtouse, 'admin', $rec);
2107                  } else {
2108                      $report = $this->doc_link(join('/', $linkparts), get_string($stringtouse, 'admin', $rec), true);
2109                  }
2110                  // Enclose report text in div so feedback text will be displayed underneath it.
2111                  $report = html_writer::div($report);
2112  
2113                  // Format error or warning line
2114                  if ($errorline) {
2115                      $messagetype = 'error';
2116                      $statusclass = 'badge-danger';
2117                  } else if ($warningline) {
2118                      $messagetype = 'warn';
2119                      $statusclass = 'badge-warning';
2120                  } else {
2121                      $messagetype = 'ok';
2122                      $statusclass = 'badge-success';
2123                  }
2124                  $status = html_writer::span($status, 'badge ' . $statusclass);
2125                  // Here we'll store all the feedback found
2126                  $feedbacktext = '';
2127                  // Append the feedback if there is some
2128                  $feedbacktext .= $environment_result->strToReport($environment_result->getFeedbackStr(), $messagetype);
2129                  //Append the bypass if there is some
2130                  $feedbacktext .= $environment_result->strToReport($environment_result->getBypassStr(), 'warn');
2131                  //Append the restrict if there is some
2132                  $feedbacktext .= $environment_result->strToReport($environment_result->getRestrictStr(), 'error');
2133  
2134                  $report .= $feedbacktext;
2135  
2136                  // Add the row to the table
2137                  if ($environment_result->getPart() == 'custom_check'){
2138                      $otherdata[$messagetype][] = array ($info, $report, $plugin, $status);
2139                  } else {
2140                      $serverdata[$messagetype][] = array ($type, $info, $report, $plugin, $status);
2141                  }
2142              }
2143          }
2144  
2145          //put errors first in
2146          $servertable->data = array_merge($serverdata['error'], $serverdata['warn'], $serverdata['ok']);
2147          $othertable->data = array_merge($otherdata['error'], $otherdata['warn'], $otherdata['ok']);
2148  
2149          // Print table
2150          $output = '';
2151          $output .= $this->heading(get_string('serverchecks', 'admin'));
2152          $output .= html_writer::table($servertable);
2153          if (count($othertable->data)){
2154              $output .= $this->heading(get_string('customcheck', 'admin'));
2155              $output .= html_writer::table($othertable);
2156          }
2157  
2158          // Finally, if any error has happened, print the summary box
2159          if (!$result) {
2160              $output .= $this->box(get_string('environmenterrortodo', 'admin'), 'environmentbox errorbox');
2161          }
2162  
2163          return $output;
2164      }
2165  
2166      /**
2167       * Render a simple page for providing the upgrade key.
2168       *
2169       * @param moodle_url|string $url
2170       * @return string
2171       */
2172      public function upgradekey_form_page($url) {
2173  
2174          $output = '';
2175          $output .= $this->header();
2176          $output .= $this->container_start('upgradekeyreq');
2177          $output .= $this->heading(get_string('upgradekeyreq', 'core_admin'));
2178          $output .= html_writer::start_tag('form', array('method' => 'POST', 'action' => $url));
2179          $output .= html_writer::empty_tag('input', [
2180              'name' => 'upgradekey',
2181              'type' => 'password',
2182              'class' => 'form-control w-auto',
2183          ]);
2184          $output .= html_writer::empty_tag('input', [
2185              'type' => 'submit',
2186              'value' => get_string('submit'),
2187              'class' => 'btn btn-primary mt-3',
2188          ]);
2189          $output .= html_writer::end_tag('form');
2190          $output .= $this->container_end();
2191          $output .= $this->footer();
2192  
2193          return $output;
2194      }
2195  
2196      /**
2197       * Display message about the benefits of registering on Moodle.org
2198       *
2199       * @return string
2200       */
2201      public function moodleorg_registration_message() {
2202  
2203          $out = format_text(get_string('registerwithmoodleorginfo', 'core_hub'), FORMAT_MARKDOWN);
2204  
2205          $out .= html_writer::link(
2206              new moodle_url('/admin/settings.php', ['section' => 'moodleservices']),
2207              $this->output->pix_icon('i/info', '').' '.get_string('registerwithmoodleorginfoapp', 'core_hub'),
2208              ['class' => 'btn btn-link', 'role' => 'opener', 'target' => '_href']
2209          );
2210  
2211          $out .= html_writer::link(
2212              HUB_MOODLEORGHUBURL,
2213              $this->output->pix_icon('i/stats', '').' '.get_string('registerwithmoodleorginfostats', 'core_hub'),
2214              ['class' => 'btn btn-link', 'role' => 'opener', 'target' => '_href']
2215          );
2216  
2217          $out .= html_writer::link(
2218              HUB_MOODLEORGHUBURL.'/sites',
2219              $this->output->pix_icon('i/location', '').' '.get_string('registerwithmoodleorginfosites', 'core_hub'),
2220              ['class' => 'btn btn-link', 'role' => 'opener', 'target' => '_href']
2221          );
2222  
2223          return $this->output->box($out);
2224      }
2225  
2226      /**
2227       * Display message about benefits of enabling the user feedback feature.
2228       *
2229       * @param bool $showfeedbackencouragement Whether the encouragement content should be displayed or not
2230       * @return string
2231       */
2232      protected function userfeedback_encouragement(bool $showfeedbackencouragement): string {
2233          $output = '';
2234  
2235          if ($showfeedbackencouragement) {
2236              $settingslink = new moodle_url('/admin/settings.php', ['section' => 'userfeedback']);
2237              $output .= $this->warning(get_string('userfeedbackencouragement', 'admin', $settingslink->out()), 'info');
2238          }
2239  
2240          return $output;
2241      }
2242  
2243      /**
2244       * Display a warning about the deprecation of Mnet.
2245       *
2246       * @param string $xmlrpcwarning The warning message
2247       * @return string HTML to output.
2248       */
2249      protected function mnet_deprecation_warning($xmlrpcwarning) {
2250          if (empty($xmlrpcwarning)) {
2251              return '';
2252          }
2253  
2254          return $this->warning($xmlrpcwarning);
2255      }
2256  }