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