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Differences Between: [Versions 310 and 400] [Versions 311 and 400] [Versions 39 and 400] [Versions 400 and 401] [Versions 400 and 402] [Versions 400 and 403]

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