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