admin/renderer.php

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