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 require_once($CFG->libdir . '/pluginlib.php');
  29
  30 /**
  31  * Standard HTML output renderer for core_admin subsystem
  32  */
  33 class core_admin_renderer extends plugin_renderer_base {
  34
  35     /**
  36      * Display the 'Do you acknowledge the terms of the GPL' page. The first page
  37      * during install.
  38      * @return string HTML to output.
  39      */
  40     public function install_licence_page() {
  41         global $CFG;
  42         $output = '';
  43
  44         $copyrightnotice = text_to_html(get_string('gpl3'));
  45         $copyrightnotice = str_replace('target="_blank"', 'onclick="this.target=\'_blank\'"', $copyrightnotice); // extremely ugly validation hack
  46
  47         $continue = new single_button(new moodle_url('/admin/index.php', array('lang'=>$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('/admin/index.php', array('agreelicense' => 1, 'lang' => $CFG->lang)));
 101         } else {
 102             $output .= $this->notification(get_string('environmentok', 'admin'), 'notifysuccess');
 103             $output .= $this->continue_button(new moodle_url('/admin/index.php', array('agreelicense'=>1, 'confirmrelease'=>1, 'lang'=>$CFG->lang)));
 104         }
 105
 106         $output .= $this->footer();
 107         return $output;
 108     }
 109
 110     /**
 111      * Displays the list of plugins with unsatisfied dependencies
 112      *
 113      * @param double|string|int $version Moodle on-disk version
 114      * @param array $failed list of plugins with unsatisfied dependecies
 115      * @param moodle_url $reloadurl URL of the page to recheck the dependencies
 116      * @return string HTML
 117      */
 118     public function unsatisfied_dependencies_page($version, array $failed, moodle_url $reloadurl) {
 119         $output = '';
 120
 121         $output .= $this->header();
 122         $output .= $this->heading(get_string('pluginscheck', 'admin'));
 123         $output .= $this->warning(get_string('pluginscheckfailed', 'admin', array('pluginslist' => implode(', ', array_unique($failed)))));
 124         $output .= $this->plugins_check_table(plugin_manager::instance(), $version, array('xdep' => true));
 125         $output .= $this->warning(get_string('pluginschecktodo', 'admin'));
 126         $output .= $this->continue_button($reloadurl);
 127
 128         $output .= $this->footer();
 129
 130         return $output;
 131     }
 132
 133     /**
 134      * Display the 'You are about to upgrade Moodle' page. The first page
 135      * during upgrade.
 136      * @param string $strnewversion
 137      * @param int $maturity
 138      * @return string HTML to output.
 139      */
 140     public function upgrade_confirm_page($strnewversion, $maturity) {
 141         $output = '';
 142
 143         $continueurl = new moodle_url('index.php', array('confirmupgrade' => 1));
 144         $cancelurl = new moodle_url('index.php');
 145
 146         $output .= $this->header();
 147         $output .= $this->maturity_warning($maturity);
 148         $output .= $this->confirm(get_string('upgradesure', 'admin', $strnewversion), $continueurl, $cancelurl);
 149         $output .= $this->footer();
 150
 151         return $output;
 152     }
 153
 154     /**
 155      * Display the environment page during the upgrade process.
 156      * @param string $release
 157      * @param boolean $envstatus final result of env check (true/false)
 158      * @param array $environment_results array of results gathered
 159      * @return string HTML to output.
 160      */
 161     public function upgrade_environment_page($release, $envstatus, $environment_results) {
 162         global $CFG;
 163         $output = '';
 164
 165         $output .= $this->header();
 166         $output .= $this->heading("Moodle $release");
 167         $output .= $this->release_notes_link();
 168         $output .= $this->environment_check_table($envstatus, $environment_results);
 169
 170         if (!$envstatus) {
 171             $output .= $this->upgrade_reload(new moodle_url('/admin/index.php'), array('confirmupgrade' => 1));
 172
 173         } else {
 174             $output .= $this->notification(get_string('environmentok', 'admin'), 'notifysuccess');
 175
 176             if (empty($CFG->skiplangupgrade) and current_language() !== 'en') {
 177                 $output .= $this->box(get_string('langpackwillbeupdated', 'admin'), 'generalbox', 'notice');
 178             }
 179
 180             $output .= $this->continue_button(new moodle_url('/admin/index.php', array('confirmupgrade' => 1, 'confirmrelease' => 1)));
 181         }
 182
 183         $output .= $this->footer();
 184
 185         return $output;
 186     }
 187
 188     /**
 189      * Display the upgrade page that lists all the plugins that require attention.
 190      * @param plugin_manager $pluginman provides information about the plugins.
 191      * @param available_update_checker $checker provides information about available updates.
 192      * @param int $version the version of the Moodle code from version.php.
 193      * @param bool $showallplugins
 194      * @param moodle_url $reloadurl
 195      * @param moodle_url $continueurl
 196      * @return string HTML to output.
 197      */
 198     public function upgrade_plugin_check_page(plugin_manager $pluginman, available_update_checker $checker,
 199             $version, $showallplugins, $reloadurl, $continueurl) {
 200         global $CFG;
 201
 202         $output = '';
 203
 204         $output .= $this->header();
 205         $output .= $this->box_start('generalbox');
 206         $output .= $this->container_start('generalbox', 'notice');
 207         $output .= html_writer::tag('p', get_string('pluginchecknotice', 'core_plugin'));
 208         if (empty($CFG->disableupdatenotifications)) {
 209             $output .= $this->container_start('checkforupdates');
 210             $output .= $this->single_button(new moodle_url($reloadurl, array('fetchupdates' => 1)), get_string('checkforupdates', 'core_plugin'));
 211             if ($timefetched = $checker->get_last_timefetched()) {
 212                 $output .= $this->container(get_string('checkforupdateslast', 'core_plugin',
 213                     userdate($timefetched, get_string('strftimedatetime', 'core_langconfig'))));
 214             }
 215             $output .= $this->container_end();
 216         }
 217         $output .= $this->container_end();
 218
 219         $output .= $this->plugins_check_table($pluginman, $version, array('full' => $showallplugins));
 220         $output .= $this->box_end();
 221         $output .= $this->upgrade_reload($reloadurl);
 222
 223         if ($pluginman->some_plugins_updatable()) {
 224             $output .= $this->container_start('upgradepluginsinfo');
 225             $output .= $this->help_icon('upgradepluginsinfo', 'core_admin', get_string('upgradepluginsfirst', 'core_admin'));
 226             $output .= $this->container_end();
 227         }
 228
 229         $button = new single_button($continueurl, get_string('upgradestart', 'admin'), 'get');
 230         $button->class = 'continuebutton';
 231         $output .= $this->render($button);
 232         $output .= $this->footer();
 233
 234         return $output;
 235     }
 236
 237     /**
 238      * Prints a page with a summary of plugin deployment to be confirmed.
 239      *
 240      * @param available_update_deployer $deployer
 241      * @param array $data deployer's data package as returned by {@link available_update_deployer::submitted_data()}
 242      * @return string
 243      */
 244     public function upgrade_plugin_confirm_deploy_page(available_update_deployer $deployer, array $data) {
 245
 246         if (!$deployer->initialized()) {
 247             throw new coding_exception('Unable to render a page for non-initialized deployer.');
 248         }
 249
 250         if (empty($data['updateinfo'])) {
 251             throw new coding_exception('Missing required data component.');
 252         }
 253
 254         $updateinfo = $data['updateinfo'];
 255
 256         $output  = '';
 257         $output .= $this->header();
 258         $output .= $this->container_start('generalbox updateplugin', 'notice');
 259
 260         $a = new stdClass();
 261         if (get_string_manager()->string_exists('pluginname', $updateinfo->component)) {
 262             $a->name = get_string('pluginname', $updateinfo->component);
 263         } else {
 264             $a->name = $updateinfo->component;
 265         }
 266
 267         if (isset($updateinfo->release)) {
 268             $a->version = $updateinfo->release . ' (' . $updateinfo->version . ')';
 269         } else {
 270             $a->version = $updateinfo->version;
 271         }
 272         $a->url = $updateinfo->download;
 273
 274         $output .= $this->output->heading(get_string('updatepluginconfirm', 'core_plugin'));
 275         $output .= $this->output->container(format_text(get_string('updatepluginconfirminfo', 'core_plugin', $a)), 'updatepluginconfirminfo');
 276         $output .= $this->output->container(get_string('updatepluginconfirmwarning', 'core_plugin', 'updatepluginconfirmwarning'));
 277
 278         if ($repotype = $deployer->plugin_external_source($data['updateinfo'])) {
 279             $output .= $this->output->container(get_string('updatepluginconfirmexternal', 'core_plugin', $repotype), 'updatepluginconfirmexternal');
 280         }
 281
 282         $widget = $deployer->make_execution_widget($data['updateinfo']);
 283         $output .= $this->output->render($widget);
 284
 285         $output .= $this->output->single_button($data['returnurl'], get_string('cancel', 'core'), 'get');
 286
 287         $output .= $this->container_end();
 288         $output .= $this->footer();
 289
 290         return $output;
 291     }
 292
 293     /**
 294      * Display the admin notifications page.
 295      * @param int $maturity
 296      * @param bool $insecuredataroot warn dataroot is invalid
 297      * @param bool $errorsdisplayed warn invalid dispaly error setting
 298      * @param bool $cronoverdue warn cron not running
 299      * @param bool $dbproblems warn db has problems
 300      * @param bool $maintenancemode warn in maintenance mode
 301      * @param bool $buggyiconvnomb warn iconv problems
 302      * @param array|null $availableupdates array of available_update_info objects or null
 303      * @param int|null $availableupdatesfetch timestamp of the most recent updates fetch or null (unknown)
 304      *
 305      * @return string HTML to output.
 306      */
 307     public function admin_notifications_page($maturity, $insecuredataroot, $errorsdisplayed,
 308             $cronoverdue, $dbproblems, $maintenancemode, $availableupdates, $availableupdatesfetch,
 309             $buggyiconvnomb, $registered) {
 310         global $CFG;
 311         $output = '';
 312
 313         $output .= $this->header();
 314         $output .= $this->maturity_info($maturity);
 315         $output .= empty($CFG->disableupdatenotifications) ? $this->available_updates($availableupdates, $availableupdatesfetch) : '';
 316         $output .= $this->insecure_dataroot_warning($insecuredataroot);
 317         $output .= $this->display_errors_warning($errorsdisplayed);
 318         $output .= $this->buggy_iconv_warning($buggyiconvnomb);
 319         $output .= $this->cron_overdue_warning($cronoverdue);
 320         $output .= $this->db_problems($dbproblems);
 321         $output .= $this->maintenance_mode_warning($maintenancemode);
 322         $output .= $this->registration_warning($registered);
 323
 324         //////////////////////////////////////////////////////////////////////////////////////////////////
 325         ////  IT IS ILLEGAL AND A VIOLATION OF THE GPL TO HIDE, REMOVE OR MODIFY THIS COPYRIGHT NOTICE ///
 326         $output .= $this->moodle_copyright();
 327         //////////////////////////////////////////////////////////////////////////////////////////////////
 328
 329         $output .= $this->footer();
 330
 331         return $output;
 332     }
 333
 334     /**
 335      * Display the plugin management page (admin/plugins.php).
 336      *
 337      * The filtering options array may contain following items:
 338      *  bool contribonly - show only contributed extensions
 339      *  bool updatesonly - show only plugins with an available update
 340      *
 341      * @param plugin_manager $pluginman
 342      * @param available_update_checker $checker
 343      * @param array $options filtering options
 344      * @return string HTML to output.
 345      */
 346     public function plugin_management_page(plugin_manager $pluginman, available_update_checker $checker, array $options = array()) {
 347         global $CFG;
 348
 349         $output = '';
 350
 351         $output .= $this->header();
 352         $output .= $this->heading(get_string('pluginsoverview', 'core_admin'));
 353         $output .= $this->plugins_overview_panel($pluginman, $options);
 354
 355         if (empty($CFG->disableupdatenotifications)) {
 356             $output .= $this->container_start('checkforupdates');
 357             $output .= $this->single_button(
 358                 new moodle_url($this->page->url, array_merge($options, array('fetchremote' => 1))),
 359                 get_string('checkforupdates', 'core_plugin')
 360             );
 361             if ($timefetched = $checker->get_last_timefetched()) {
 362                 $output .= $this->container(get_string('checkforupdateslast', 'core_plugin',
 363                     userdate($timefetched, get_string('strftimedatetime', 'core_langconfig'))));
 364             }
 365             $output .= $this->container_end();
 366         }
 367
 368         $output .= $this->box($this->plugins_control_panel($pluginman, $options), 'generalbox');
 369         $output .= $this->footer();
 370
 371         return $output;
 372     }
 373
 374     /**
 375      * Display the plugin management page (admin/environment.php).
 376      * @param array $versions
 377      * @param string $version
 378      * @param boolean $envstatus final result of env check (true/false)
 379      * @param array $environment_results array of results gathered
 380      * @return string HTML to output.
 381      */
 382     public function environment_check_page($versions, $version, $envstatus, $environment_results) {
 383         $output = '';
 384         $output .= $this->header();
 385
 386         // Print the component download link
 387         $output .= html_writer::tag('div', html_writer::link(
 388                     new moodle_url('/admin/environment.php', array('action' => 'updatecomponent', 'sesskey' => sesskey())),
 389                     get_string('updatecomponent', 'admin')),
 390                 array('class' => 'reportlink'));
 391
 392         // Heading.
 393         $output .= $this->heading(get_string('environment', 'admin'));
 394
 395         // Box with info and a menu to choose the version.
 396         $output .= $this->box_start();
 397         $output .= html_writer::tag('div', get_string('adminhelpenvironment'));
 398         $select = new single_select(new moodle_url('/admin/environment.php'), 'version', $versions, $version, null);
 399         $select->label = get_string('moodleversion');
 400         $output .= $this->render($select);
 401         $output .= $this->box_end();
 402
 403         // The results
 404         $output .= $this->environment_check_table($envstatus, $environment_results);
 405
 406         $output .= $this->footer();
 407         return $output;
 408     }
 409
 410     /**
 411      * Output a warning message, of the type that appears on the admin notifications page.
 412      * @param string $message the message to display.
 413      * @param string $type type class
 414      * @return string HTML to output.
 415      */
 416     protected function warning($message, $type = 'warning') {
 417         return $this->box($message, 'generalbox admin' . $type);
 418     }
 419
 420     /**
 421      * Render an appropriate message if dataroot is insecure.
 422      * @param bool $insecuredataroot
 423      * @return string HTML to output.
 424      */
 425     protected function insecure_dataroot_warning($insecuredataroot) {
 426         global $CFG;
 427
 428         if ($insecuredataroot == INSECURE_DATAROOT_WARNING) {
 429             return $this->warning(get_string('datarootsecuritywarning', 'admin', $CFG->dataroot));
 430
 431         } else if ($insecuredataroot == INSECURE_DATAROOT_ERROR) {
 432             return $this->warning(get_string('datarootsecurityerror', 'admin', $CFG->dataroot), 'error');
 433
 434         } else {
 435             return '';
 436         }
 437     }
 438
 439     /**
 440      * Render an appropriate message if dataroot is insecure.
 441      * @param bool $errorsdisplayed
 442      * @return string HTML to output.
 443      */
 444     protected function display_errors_warning($errorsdisplayed) {
 445         if (!$errorsdisplayed) {
 446             return '';
 447         }
 448
 449         return $this->warning(get_string('displayerrorswarning', 'admin'));
 450     }
 451
 452     /**
 453      * Render an appropriate message if iconv is buggy and mbstring missing.
 454      * @param bool $buggyiconvnomb
 455      * @return string HTML to output.
 456      */
 457     protected function buggy_iconv_warning($buggyiconvnomb) {
 458         if (!$buggyiconvnomb) {
 459             return '';
 460         }
 461
 462         return $this->warning(get_string('warningiconvbuggy', 'admin'));
 463     }
 464
 465     /**
 466      * Render an appropriate message if cron has not been run recently.
 467      * @param bool $cronoverdue
 468      * @return string HTML to output.
 469      */
 470     public function cron_overdue_warning($cronoverdue) {
 471         if (!$cronoverdue) {
 472             return '';
 473         }
 474
 475         return $this->warning(get_string('cronwarning', 'admin') . '&nbsp;' .
 476                 $this->help_icon('cron', 'admin'));
 477     }
 478
 479     /**
 480      * Render an appropriate message if there are any problems with the DB set-up.
 481      * @param bool $dbproblems
 482      * @return string HTML to output.
 483      */
 484     public function db_problems($dbproblems) {
 485         if (!$dbproblems) {
 486             return '';
 487         }
 488
 489         return $this->warning($dbproblems);
 490     }
 491
 492     /**
 493      * Render an appropriate message if the site in in maintenance mode.
 494      * @param bool $maintenancemode
 495      * @return string HTML to output.
 496      */
 497     public function maintenance_mode_warning($maintenancemode) {
 498         if (!$maintenancemode) {
 499             return '';
 500         }
 501
 502         $url = new moodle_url('/admin/settings.php', array('section' => 'maintenancemode'));
 503         $url = $url->out(); // get_string() does not support objects in params
 504
 505         return $this->warning(get_string('sitemaintenancewarning2', 'admin', $url));
 506     }
 507
 508     /**
 509      * Display a warning about installing development code if necesary.
 510      * @param int $maturity
 511      * @return string HTML to output.
 512      */
 513     protected function maturity_warning($maturity) {
 514         if ($maturity == MATURITY_STABLE) {
 515             return ''; // No worries.
 516         }
 517
 518         $maturitylevel = get_string('maturity' . $maturity, 'admin');
 519         return $this->box(
 520                     $this->container(get_string('maturitycorewarning', 'admin', $maturitylevel)) .
 521                     $this->container($this->doc_link('admin/versions', get_string('morehelp'))),
 522                 'generalbox maturitywarning');
 523     }
 524
 525     /**
 526      * Output the copyright notice.
 527      * @return string HTML to output.
 528      */
 529     protected function moodle_copyright() {
 530         global $CFG;
 531
 532         //////////////////////////////////////////////////////////////////////////////////////////////////
 533         ////  IT IS ILLEGAL AND A VIOLATION OF THE GPL TO HIDE, REMOVE OR MODIFY THIS COPYRIGHT NOTICE ///
 534         $copyrighttext = '<a href="http://moodle.org/">Moodle</a> '.
 535                          '<a href="http://docs.moodle.org/dev/Releases" title="'.$CFG->version.'">'.$CFG->release.'</a><br />'.
 536                          'Copyright &copy; 1999 onwards, Martin Dougiamas<br />'.
 537                          'and <a href="http://moodle.org/dev">many other contributors</a>.<br />'.
 538                          '<a href="http://docs.moodle.org/dev/License">GNU Public License</a>';
 539         //////////////////////////////////////////////////////////////////////////////////////////////////
 540
 541         return $this->box($copyrighttext, 'copyright');
 542     }
 543
 544     /**
 545      * Display a warning about installing development code if necesary.
 546      * @param int $maturity
 547      * @return string HTML to output.
 548      */
 549     protected function maturity_info($maturity) {
 550         if ($maturity == MATURITY_STABLE) {
 551             return ''; // No worries.
 552         }
 553
 554         $maturitylevel = get_string('maturity' . $maturity, 'admin');
 555         return $this->box(
 556                     get_string('maturitycoreinfo', 'admin', $maturitylevel) . ' ' .
 557                     $this->doc_link('admin/versions', get_string('morehelp')),
 558                 'generalbox adminwarning maturityinfo maturity'.$maturity);
 559     }
 560
 561     /**
 562      * Displays the info about available Moodle core and plugin updates
 563      *
 564      * The structure of the $updates param has changed since 2.4. It contains not only updates
 565      * for the core itself, but also for all other installed plugins.
 566      *
 567      * @param array|null $updates array of (string)component => array of available_update_info objects or null
 568      * @param int|null $fetch timestamp of the most recent updates fetch or null (unknown)
 569      * @return string
 570      */
 571     protected function available_updates($updates, $fetch) {
 572
 573         $updateinfo = $this->box_start('generalbox adminwarning availableupdatesinfo');
 574         $someupdateavailable = false;
 575         if (is_array($updates)) {
 576             if (is_array($updates['core'])) {
 577                 $someupdateavailable = true;
 578                 $updateinfo .= $this->heading(get_string('updateavailable', 'core_admin'), 3);
 579                 foreach ($updates['core'] as $update) {
 580                     $updateinfo .= $this->moodle_available_update_info($update);
 581                 }
 582             }
 583             unset($updates['core']);
 584             // If something has left in the $updates array now, it is updates for plugins.
 585             if (!empty($updates)) {
 586                 $someupdateavailable = true;
 587                 $updateinfo .= $this->heading(get_string('updateavailableforplugin', 'core_admin'), 3);
 588                 $pluginsoverviewurl = new moodle_url('/admin/plugins.php', array('updatesonly' => 1));
 589                 $updateinfo .= $this->container(get_string('pluginsoverviewsee', 'core_admin',
 590                     array('url' => $pluginsoverviewurl->out())));
 591             }
 592         }
 593
 594         if (!$someupdateavailable) {
 595             $now = time();
 596             if ($fetch and ($fetch <= $now) and ($now - $fetch < HOURSECS)) {
 597                 $updateinfo .= $this->heading(get_string('updateavailablenot', 'core_admin'), 3);
 598             }
 599         }
 600
 601         $updateinfo .= $this->container_start('checkforupdates');
 602         $updateinfo .= $this->single_button(new moodle_url($this->page->url, array('fetchupdates' => 1)), get_string('checkforupdates', 'core_plugin'));
 603         if ($fetch) {
 604             $updateinfo .= $this->container(get_string('checkforupdateslast', 'core_plugin',
 605                 userdate($fetch, get_string('strftimedatetime', 'core_langconfig'))));
 606         }
 607         $updateinfo .= $this->container_end();
 608
 609         $updateinfo .= $this->box_end();
 610
 611         return $updateinfo;
 612     }
 613
 614     /**
 615      * Display a warning about not being registered on Moodle.org if necesary.
 616      *
 617      * @param boolean $registered true if the site is registered on Moodle.org
 618      * @return string HTML to output.
 619      */
 620     protected function registration_warning($registered) {
 621
 622         if (!$registered) {
 623
 624             $registerbutton = $this->single_button(new moodle_url('registration/register.php',
 625                     array('huburl' =>  HUB_MOODLEORGHUBURL, 'hubname' => 'Moodle.org')),
 626                     get_string('register', 'admin'));
 627
 628             return $this->warning( get_string('registrationwarning', 'admin')
 629                     . '&nbsp;' . $this->help_icon('registration', 'admin') . $registerbutton );
 630         }
 631
 632         return '';
 633     }
 634
 635     /**
 636      * Helper method to render the information about the available Moodle update
 637      *
 638      * @param available_update_info $updateinfo information about the available Moodle core update
 639      */
 640     protected function moodle_available_update_info(available_update_info $updateinfo) {
 641
 642         $boxclasses = 'moodleupdateinfo';
 643         $info = array();
 644
 645         if (isset($updateinfo->release)) {
 646             $info[] = html_writer::tag('span', get_string('updateavailable_release', 'core_admin', $updateinfo->release),
 647                 array('class' => 'info release'));
 648         }
 649
 650         if (isset($updateinfo->version)) {
 651             $info[] = html_writer::tag('span', get_string('updateavailable_version', 'core_admin', $updateinfo->version),
 652                 array('class' => 'info version'));
 653         }
 654
 655         if (isset($updateinfo->maturity)) {
 656             $info[] = html_writer::tag('span', get_string('maturity'.$updateinfo->maturity, 'core_admin'),
 657                 array('class' => 'info maturity'));
 658             $boxclasses .= ' maturity'.$updateinfo->maturity;
 659         }
 660
 661         if (isset($updateinfo->download)) {
 662             $info[] = html_writer::link($updateinfo->download, get_string('download'), array('class' => 'info download'));
 663         }
 664
 665         if (isset($updateinfo->url)) {
 666             $info[] = html_writer::link($updateinfo->url, get_string('updateavailable_moreinfo', 'core_plugin'),
 667                 array('class' => 'info more'));
 668         }
 669
 670         $box  = $this->output->box_start($boxclasses);
 671         $box .= $this->output->box(implode(html_writer::tag('span', ' ', array('class' => 'separator')), $info), '');
 672         $box .= $this->output->box_end();
 673
 674         return $box;
 675     }
 676
 677     /**
 678      * Display a link to the release notes.
 679      * @return string HTML to output.
 680      */
 681     protected function release_notes_link() {
 682         $releasenoteslink = get_string('releasenoteslink', 'admin', 'http://docs.moodle.org/dev/Releases');
 683         $releasenoteslink = str_replace('target="_blank"', 'onclick="this.target=\'_blank\'"', $releasenoteslink); // extremely ugly validation hack
 684         return $this->box($releasenoteslink, 'generalbox releasenoteslink');
 685     }
 686
 687     /**
 688      * Display the reload link that appears on several upgrade/install pages.
 689      * @return string HTML to output.
 690      */
 691     function upgrade_reload($url) {
 692         return html_writer::empty_tag('br') .
 693                 html_writer::tag('div',
 694                     html_writer::link($url, $this->pix_icon('i/reload', '', '', array('class' => 'icon icon-pre')) .
 695                             get_string('reload'), array('title' => get_string('reload'))),
 696                 array('class' => 'continuebutton')) . html_writer::empty_tag('br');
 697     }
 698
 699     /**
 700      * Displays all known plugins and information about their installation or upgrade
 701      *
 702      * This default implementation renders all plugins into one big table. The rendering
 703      * options support:
 704      *     (bool)full = false: whether to display up-to-date plugins, too
 705      *     (bool)xdep = false: display the plugins with unsatisified dependecies only
 706      *
 707      * @param plugin_manager $pluginman provides information about the plugins.
 708      * @param int $version the version of the Moodle code from version.php.
 709      * @param array $options rendering options
 710      * @return string HTML code
 711      */
 712     public function plugins_check_table(plugin_manager $pluginman, $version, array $options = array()) {
 713         global $CFG;
 714
 715         $plugininfo = $pluginman->get_plugins();
 716
 717         if (empty($plugininfo)) {
 718             return '';
 719         }
 720
 721         $options['full'] = isset($options['full']) ? (bool)$options['full'] : false;
 722         $options['xdep'] = isset($options['xdep']) ? (bool)$options['xdep'] : false;
 723
 724         $table = new html_table();
 725         $table->id = 'plugins-check';
 726         $table->head = array(
 727             get_string('displayname', 'core_plugin'),
 728             get_string('rootdir', 'core_plugin'),
 729             get_string('source', 'core_plugin'),
 730             get_string('versiondb', 'core_plugin'),
 731             get_string('versiondisk', 'core_plugin'),
 732             get_string('requires', 'core_plugin'),
 733             get_string('status', 'core_plugin'),
 734         );
 735         $table->colclasses = array(
 736             'displayname', 'rootdir', 'source', 'versiondb', 'versiondisk', 'requires', 'status',
 737         );
 738         $table->data = array();
 739
 740         $numofhighlighted = array();    // number of highlighted rows per this subsection
 741
 742         foreach ($plugininfo as $type => $plugins) {
 743
 744             $header = new html_table_cell($pluginman->plugintype_name_plural($type));
 745             $header->header = true;
 746             $header->colspan = count($table->head);
 747             $header = new html_table_row(array($header));
 748             $header->attributes['class'] = 'plugintypeheader type-' . $type;
 749
 750             $numofhighlighted[$type] = 0;
 751
 752             if (empty($plugins) and $options['full']) {
 753                 $msg = new html_table_cell(get_string('noneinstalled', 'core_plugin'));
 754                 $msg->colspan = count($table->head);
 755                 $row = new html_table_row(array($msg));
 756                 $row->attributes['class'] .= 'msg msg-noneinstalled';
 757                 $table->data[] = $header;
 758                 $table->data[] = $row;
 759                 continue;
 760             }
 761
 762             $plugintyperows = array();
 763
 764             foreach ($plugins as $name => $plugin) {
 765                 $row = new html_table_row();
 766                 $row->attributes['class'] = 'type-' . $plugin->type . ' name-' . $plugin->type . '_' . $plugin->name;
 767
 768                 if ($this->page->theme->resolve_image_location('icon', $plugin->type . '_' . $plugin->name, null)) {
 769                     $icon = $this->output->pix_icon('icon', '', $plugin->type . '_' . $plugin->name, array('class' => 'smallicon pluginicon'));
 770                 } else {
 771                     $icon = $this->output->pix_icon('spacer', '', 'moodle', array('class' => 'smallicon pluginicon noicon'));
 772                 }
 773                 $displayname  = $icon . ' ' . $plugin->displayname;
 774                 $displayname = new html_table_cell($displayname);
 775
 776                 $rootdir = new html_table_cell($plugin->get_dir());
 777
 778                 if ($isstandard = $plugin->is_standard()) {
 779                     $row->attributes['class'] .= ' standard';
 780                     $source = new html_table_cell(get_string('sourcestd', 'core_plugin'));
 781                 } else {
 782                     $row->attributes['class'] .= ' extension';
 783                     $source = new html_table_cell(get_string('sourceext', 'core_plugin'));
 784                 }
 785
 786                 $versiondb = new html_table_cell($plugin->versiondb);
 787                 $versiondisk = new html_table_cell($plugin->versiondisk);
 788
 789                 $statuscode = $plugin->get_status();
 790                 $row->attributes['class'] .= ' status-' . $statuscode;
 791                 $status = get_string('status_' . $statuscode, 'core_plugin');
 792
 793                 $availableupdates = $plugin->available_updates();
 794                 if (!empty($availableupdates) and empty($CFG->disableupdatenotifications)) {
 795                     foreach ($availableupdates as $availableupdate) {
 796                         $status .= $this->plugin_available_update_info($availableupdate);
 797                     }
 798                 }
 799
 800                 $status = new html_table_cell($status);
 801
 802                 $requires = new html_table_cell($this->required_column($plugin, $pluginman, $version));
 803
 804                 $statusisboring = in_array($statuscode, array(
 805                         plugin_manager::PLUGIN_STATUS_NODB, plugin_manager::PLUGIN_STATUS_UPTODATE));
 806
 807                 $coredependency = $plugin->is_core_dependency_satisfied($version);
 808                 $otherpluginsdependencies = $pluginman->are_dependencies_satisfied($plugin->get_other_required_plugins());
 809                 $dependenciesok = $coredependency && $otherpluginsdependencies;
 810
 811                 if ($options['xdep']) {
 812                     // we want to see only plugins with failed dependencies
 813                     if ($dependenciesok) {
 814                         continue;
 815                     }
 816
 817                 } else if ($isstandard and $statusisboring and $dependenciesok and empty($availableupdates)) {
 818                     // no change is going to happen to the plugin - display it only
 819                     // if the user wants to see the full list
 820                     if (empty($options['full'])) {
 821                         continue;
 822                     }
 823                 }
 824
 825                 // ok, the plugin should be displayed
 826                 $numofhighlighted[$type]++;
 827
 828                 $row->cells = array($displayname, $rootdir, $source,
 829                     $versiondb, $versiondisk, $requires, $status);
 830                 $plugintyperows[] = $row;
 831             }
 832
 833             if (empty($numofhighlighted[$type]) and empty($options['full'])) {
 834                 continue;
 835             }
 836
 837             $table->data[] = $header;
 838             $table->data = array_merge($table->data, $plugintyperows);
 839         }
 840
 841         $sumofhighlighted = array_sum($numofhighlighted);
 842
 843         if ($options['xdep']) {
 844             // we do not want to display no heading and links in this mode
 845             $out = '';
 846
 847         } else if ($sumofhighlighted == 0) {
 848             $out  = $this->output->container_start('nonehighlighted', 'plugins-check-info');
 849             $out .= $this->output->heading(get_string('nonehighlighted', 'core_plugin'));
 850             if (empty($options['full'])) {
 851                 $out .= html_writer::link(new moodle_url('/admin/index.php',
 852                     array('confirmupgrade' => 1, 'confirmrelease' => 1, 'showallplugins' => 1)),
 853                     get_string('nonehighlightedinfo', 'core_plugin'));
 854             }
 855             $out .= $this->output->container_end();
 856
 857         } else {
 858             $out  = $this->output->container_start('somehighlighted', 'plugins-check-info');
 859             $out .= $this->output->heading(get_string('somehighlighted', 'core_plugin', $sumofhighlighted));
 860             if (empty($options['full'])) {
 861                 $out .= html_writer::link(new moodle_url('/admin/index.php',
 862                     array('confirmupgrade' => 1, 'confirmrelease' => 1, 'showallplugins' => 1)),
 863                     get_string('somehighlightedinfo', 'core_plugin'));
 864             } else {
 865                 $out .= html_writer::link(new moodle_url('/admin/index.php',
 866                     array('confirmupgrade' => 1, 'confirmrelease' => 1, 'showallplugins' => 0)),
 867                     get_string('somehighlightedonly', 'core_plugin'));
 868             }
 869             $out .= $this->output->container_end();
 870         }
 871
 872         if ($sumofhighlighted > 0 or $options['full']) {
 873             $out .= html_writer::table($table);
 874         }
 875
 876         return $out;
 877     }
 878
 879     /**
 880      * Formats the information that needs to go in the 'Requires' column.
 881      * @param plugininfo_base $plugin the plugin we are rendering the row for.
 882      * @param plugin_manager $pluginman provides data on all the plugins.
 883      * @param string $version
 884      * @return string HTML code
 885      */
 886     protected function required_column(plugininfo_base $plugin, plugin_manager $pluginman, $version) {
 887         $requires = array();
 888
 889         if (!empty($plugin->versionrequires)) {
 890             if ($plugin->versionrequires <= $version) {
 891                 $class = 'requires-ok';
 892             } else {
 893                 $class = 'requires-failed';
 894             }
 895             $requires[] = html_writer::tag('li',
 896                 get_string('moodleversion', 'core_plugin', $plugin->versionrequires),
 897                 array('class' => $class));
 898         }
 899
 900         foreach ($plugin->get_other_required_plugins() as $component => $requiredversion) {
 901             $ok = true;
 902             $otherplugin = $pluginman->get_plugin_info($component);
 903
 904             if (is_null($otherplugin)) {
 905                 $ok = false;
 906             } else if ($requiredversion != ANY_VERSION and $otherplugin->versiondisk < $requiredversion) {
 907                 $ok = false;
 908             }
 909
 910             if ($ok) {
 911                 $class = 'requires-ok';
 912             } else {
 913                 $class = 'requires-failed';
 914             }
 915
 916             if ($requiredversion != ANY_VERSION) {
 917                 $str = 'otherpluginversion';
 918             } else {
 919                 $str = 'otherplugin';
 920             }
 921             $componenturl = new moodle_url('https://moodle.org/plugins/view.php?plugin='.$component);
 922             $componenturl = html_writer::tag('a', $component, array('href' => $componenturl->out()));
 923             $requires[] = html_writer::tag('li',
 924                     get_string($str, 'core_plugin',
 925                             array('component' => $componenturl, 'version' => $requiredversion)),
 926                     array('class' => $class));
 927         }
 928
 929         if (!$requires) {
 930             return '';
 931         }
 932         return html_writer::tag('ul', implode("\n", $requires));
 933     }
 934
 935     /**
 936      * Prints an overview about the plugins - number of installed, number of extensions etc.
 937      *
 938      * @param plugin_manager $pluginman provides information about the plugins
 939      * @param array $options filtering options
 940      * @return string as usually
 941      */
 942     public function plugins_overview_panel(plugin_manager $pluginman, array $options = array()) {
 943         global $CFG;
 944
 945         $plugininfo = $pluginman->get_plugins();
 946
 947         $numtotal = $numdisabled = $numextension = $numupdatable = 0;
 948
 949         foreach ($plugininfo as $type => $plugins) {
 950             foreach ($plugins as $name => $plugin) {
 951                 if ($plugin->get_status() === plugin_manager::PLUGIN_STATUS_MISSING) {
 952                     continue;
 953                 }
 954                 $numtotal++;
 955                 if ($plugin->is_enabled() === false) {
 956                     $numdisabled++;
 957                 }
 958                 if (!$plugin->is_standard()) {
 959                     $numextension++;
 960                 }
 961                 if (empty($CFG->disableupdatenotifications) and $plugin->available_updates()) {
 962                     $numupdatable++;
 963                 }
 964             }
 965         }
 966
 967         $info = array();
 968         $filter = array();
 969         $somefilteractive = false;
 970         $info[] = html_writer::tag('span', get_string('numtotal', 'core_plugin', $numtotal), array('class' => 'info total'));
 971         $info[] = html_writer::tag('span', get_string('numdisabled', 'core_plugin', $numdisabled), array('class' => 'info disabled'));
 972         $info[] = html_writer::tag('span', get_string('numextension', 'core_plugin', $numextension), array('class' => 'info extension'));
 973         if ($numextension > 0) {
 974             if (empty($options['contribonly'])) {
 975                 $filter[] = html_writer::link(
 976                     new moodle_url($this->page->url, array('contribonly' => 1)),
 977                     get_string('filtercontribonly', 'core_plugin'),
 978                     array('class' => 'filter-item show-contribonly')
 979                 );
 980             } else {
 981                 $filter[] = html_writer::tag('span', get_string('filtercontribonlyactive', 'core_plugin'),
 982                     array('class' => 'filter-item active show-contribonly'));
 983                 $somefilteractive = true;
 984             }
 985         }
 986         if ($numupdatable > 0) {
 987             $info[] = html_writer::tag('span', get_string('numupdatable', 'core_plugin', $numupdatable), array('class' => 'info updatable'));
 988             if (empty($options['updatesonly'])) {
 989                 $filter[] = html_writer::link(
 990                     new moodle_url($this->page->url, array('updatesonly' => 1)),
 991                     get_string('filterupdatesonly', 'core_plugin'),
 992                     array('class' => 'filter-item show-updatesonly')
 993                 );
 994             } else {
 995                 $filter[] = html_writer::tag('span', get_string('filterupdatesonlyactive', 'core_plugin'),
 996                     array('class' => 'filter-item active show-updatesonly'));
 997                 $somefilteractive = true;
 998             }
 999         }
1000         if ($somefilteractive) {
1001             $filter[] = html_writer::link($this->page->url, get_string('filterall', 'core_plugin'), array('class' => 'filter-item show-all'));
1002         }
1003
1004         $output  = $this->output->box(implode(html_writer::tag('span', ' ', array('class' => 'separator')), $info), '', 'plugins-overview-panel');
1005
1006         if (!empty($filter)) {
1007             $output .= $this->output->box(implode(html_writer::tag('span', ' ', array('class' => 'separator')), $filter), '', 'plugins-overview-filter');
1008         }
1009
1010         return $output;
1011     }
1012
1013     /**
1014      * Displays all known plugins and links to manage them
1015      *
1016      * This default implementation renders all plugins into one big table.
1017      *
1018      * @param plugin_manager $pluginman provides information about the plugins.
1019      * @param array $options filtering options
1020      * @return string HTML code
1021      */
1022     public function plugins_control_panel(plugin_manager $pluginman, array $options = array()) {
1023         global $CFG;
1024
1025         $plugininfo = $pluginman->get_plugins();
1026
1027         // Filter the list of plugins according the options.
1028         if (!empty($options['updatesonly'])) {
1029             $updateable = array();
1030             foreach ($plugininfo as $plugintype => $pluginnames) {
1031                 foreach ($pluginnames as $pluginname => $pluginfo) {
1032                     if (!empty($pluginfo->availableupdates)) {
1033                         foreach ($pluginfo->availableupdates as $pluginavailableupdate) {
1034                             if ($pluginavailableupdate->version > $pluginfo->versiondisk) {
1035                                 $updateable[$plugintype][$pluginname] = $pluginfo;
1036                             }
1037                         }
1038                     }
1039                 }
1040             }
1041             $plugininfo = $updateable;
1042         }
1043
1044         if (!empty($options['contribonly'])) {
1045             $contribs = array();
1046             foreach ($plugininfo as $plugintype => $pluginnames) {
1047                 foreach ($pluginnames as $pluginname => $pluginfo) {
1048                     if (!$pluginfo->is_standard()) {
1049                         $contribs[$plugintype][$pluginname] = $pluginfo;
1050                     }
1051                 }
1052             }
1053             $plugininfo = $contribs;
1054         }
1055
1056         if (empty($plugininfo)) {
1057             return '';
1058         }
1059
1060         $table = new html_table();
1061         $table->id = 'plugins-control-panel';
1062         $table->head = array(
1063             get_string('displayname', 'core_plugin'),
1064             get_string('source', 'core_plugin'),
1065             get_string('version', 'core_plugin'),
1066             get_string('availability', 'core_plugin'),
1067             get_string('actions', 'core_plugin'),
1068             get_string('notes','core_plugin'),
1069         );
1070         $table->colclasses = array(
1071             'pluginname', 'source', 'version', 'availability', 'actions', 'notes'
1072         );
1073
1074         foreach ($plugininfo as $type => $plugins) {
1075
1076             $header = new html_table_cell($pluginman->plugintype_name_plural($type));
1077             $header->header = true;
1078             $header->colspan = count($table->head);
1079             $header = new html_table_row(array($header));
1080             $header->attributes['class'] = 'plugintypeheader type-' . $type;
1081             $table->data[] = $header;
1082
1083             if (empty($plugins)) {
1084                 $msg = new html_table_cell(get_string('noneinstalled', 'core_plugin'));
1085                 $msg->colspan = count($table->head);
1086                 $row = new html_table_row(array($msg));
1087                 $row->attributes['class'] .= 'msg msg-noneinstalled';
1088                 $table->data[] = $row;
1089                 continue;
1090             }
1091
1092             foreach ($plugins as $name => $plugin) {
1093                 $row = new html_table_row();
1094                 $row->attributes['class'] = 'type-' . $plugin->type . ' name-' . $plugin->type . '_' . $plugin->name;
1095
1096                 if ($this->page->theme->resolve_image_location('icon', $plugin->type . '_' . $plugin->name)) {
1097                     $icon = $this->output->pix_icon('icon', '', $plugin->type . '_' . $plugin->name, array('class' => 'icon pluginicon'));
1098                 } else {
1099                     $icon = $this->output->pix_icon('spacer', '', 'moodle', array('class' => 'icon pluginicon noicon'));
1100                 }
1101                 if ($plugin->get_status() === plugin_manager::PLUGIN_STATUS_MISSING) {
1102                     $msg = html_writer::tag('span', get_string('status_missing', 'core_plugin'), array('class' => 'notifyproblem'));
1103                     $row->attributes['class'] .= ' missingfromdisk';
1104                 } else {
1105                     $msg = '';
1106                 }
1107                 $pluginname  = html_writer::tag('div', $icon . '' . $plugin->displayname . ' ' . $msg, array('class' => 'displayname')).
1108                                html_writer::tag('div', $plugin->component, array('class' => 'componentname'));
1109                 $pluginname  = new html_table_cell($pluginname);
1110
1111                 if ($plugin->is_standard()) {
1112                     $row->attributes['class'] .= ' standard';
1113                     $source = new html_table_cell(get_string('sourcestd', 'core_plugin'));
1114                 } else {
1115                     $row->attributes['class'] .= ' extension';
1116                     $source = new html_table_cell(get_string('sourceext', 'core_plugin'));
1117                 }
1118
1119                 $version = new html_table_cell($plugin->versiondb);
1120
1121                 $isenabled = $plugin->is_enabled();
1122                 if (is_null($isenabled)) {
1123                     $availability = new html_table_cell('');
1124                 } else if ($isenabled) {
1125                     $row->attributes['class'] .= ' enabled';
1126                     $availability = new html_table_cell(get_string('pluginenabled', 'core_plugin'));
1127                 } else {
1128                     $row->attributes['class'] .= ' disabled';
1129                     $availability = new html_table_cell(get_string('plugindisabled', 'core_plugin'));
1130                 }
1131
1132                 $actions = array();
1133
1134                 $settingsurl = $plugin->get_settings_url();
1135                 if (!is_null($settingsurl)) {
1136                     $actions[] = html_writer::link($settingsurl, get_string('settings', 'core_plugin'), array('class' => 'settings'));
1137                 }
1138
1139                 $uninstallurl = $plugin->get_uninstall_url();
1140                 if (!is_null($uninstallurl)) {
1141                     $actions[] = html_writer::link($uninstallurl, get_string('uninstall', 'core_plugin'), array('class' => 'uninstall'));
1142                 }
1143
1144                 $actions = new html_table_cell(implode(html_writer::tag('span', ' ', array('class' => 'separator')), $actions));
1145
1146                 $requriedby = $pluginman->other_plugins_that_require($plugin->component);
1147                 if ($requriedby) {
1148                     $requiredby = html_writer::tag('div', get_string('requiredby', 'core_plugin', implode(', ', $requriedby)),
1149                         array('class' => 'requiredby'));
1150                 } else {
1151                     $requiredby = '';
1152                 }
1153
1154                 $updateinfo = '';
1155                 if (empty($CFG->disableupdatenotifications) and is_array($plugin->available_updates())) {
1156                     foreach ($plugin->available_updates() as $availableupdate) {
1157                         $updateinfo .= $this->plugin_available_update_info($availableupdate);
1158                     }
1159                 }
1160
1161                 $notes = new html_table_cell($requiredby.$updateinfo);
1162
1163                 $row->cells = array(
1164                     $pluginname, $source, $version, $availability, $actions, $notes
1165                 );
1166                 $table->data[] = $row;
1167             }
1168         }
1169
1170         return html_writer::table($table);
1171     }
1172
1173     /**
1174      * Helper method to render the information about the available plugin update
1175      *
1176      * The passed objects always provides at least the 'version' property containing
1177      * the (higher) version of the plugin available.
1178      *
1179      * @param available_update_info $updateinfo information about the available update for the plugin
1180      */
1181     protected function plugin_available_update_info(available_update_info $updateinfo) {
1182
1183         $boxclasses = 'pluginupdateinfo';
1184         $info = array();
1185
1186         if (isset($updateinfo->release)) {
1187             $info[] = html_writer::tag('span', get_string('updateavailable_release', 'core_plugin', $updateinfo->release),
1188                 array('class' => 'info release'));
1189         }
1190
1191         if (isset($updateinfo->maturity)) {
1192             $info[] = html_writer::tag('span', get_string('maturity'.$updateinfo->maturity, 'core_admin'),
1193                 array('class' => 'info maturity'));
1194             $boxclasses .= ' maturity'.$updateinfo->maturity;
1195         }
1196
1197         if (isset($updateinfo->download)) {
1198             $info[] = html_writer::link($updateinfo->download, get_string('download'), array('class' => 'info download'));
1199         }
1200
1201         if (isset($updateinfo->url)) {
1202             $info[] = html_writer::link($updateinfo->url, get_string('updateavailable_moreinfo', 'core_plugin'),
1203                 array('class' => 'info more'));
1204         }
1205
1206         $box  = $this->output->box_start($boxclasses);
1207         $box .= html_writer::tag('div', get_string('updateavailable', 'core_plugin', $updateinfo->version), array('class' => 'version'));
1208         $box .= $this->output->box(implode(html_writer::tag('span', ' ', array('class' => 'separator')), $info), '');
1209
1210         $deployer = available_update_deployer::instance();
1211         if ($deployer->initialized()) {
1212             $impediments = $deployer->deployment_impediments($updateinfo);
1213             if (empty($impediments)) {
1214                 $widget = $deployer->make_confirm_widget($updateinfo);
1215                 $box .= $this->output->render($widget);
1216             } else {
1217                 if (isset($impediments['notwritable'])) {
1218                     $box .= $this->output->help_icon('notwritable', 'core_plugin', get_string('notwritable', 'core_plugin'));
1219                 }
1220                 if (isset($impediments['notdownloadable'])) {
1221                     $box .= $this->output->help_icon('notdownloadable', 'core_plugin', get_string('notdownloadable', 'core_plugin'));
1222                 }
1223             }
1224         }
1225
1226         $box .= $this->output->box_end();
1227
1228         return $box;
1229     }
1230
1231     /**
1232      * This function will render one beautiful table with all the environmental
1233      * configuration and how it suits Moodle needs.
1234      *
1235      * @param boolean $result final result of the check (true/false)
1236      * @param array $environment_results array of results gathered
1237      * @return string HTML to output.
1238      */
1239     public function environment_check_table($result, $environment_results) {
1240         global $CFG;
1241
1242         // Table headers
1243         $servertable = new html_table();//table for server checks
1244         $servertable->head  = array(
1245             get_string('name'),
1246             get_string('info'),
1247             get_string('report'),
1248             get_string('status'),
1249         );
1250         $servertable->align = array('center', 'center', 'left', 'center');
1251         $servertable->wrap  = array('nowrap', '', '', 'nowrap');
1252         $servertable->size  = array('10', 10, '100%', '10');
1253         $servertable->attributes['class'] = 'environmenttable generaltable';
1254
1255         $serverdata = array('ok'=>array(), 'warn'=>array(), 'error'=>array());
1256
1257         $othertable = new html_table();//table for custom checks
1258         $othertable->head  = array(
1259             get_string('info'),
1260             get_string('report'),
1261             get_string('status'),
1262         );
1263         $othertable->align = array('center', 'left', 'center');
1264         $othertable->wrap  = array('', '', 'nowrap');
1265         $othertable->size  = array(10, '100%', '10');
1266         $othertable->attributes['class'] = 'environmenttable generaltable';
1267
1268         $otherdata = array('ok'=>array(), 'warn'=>array(), 'error'=>array());
1269
1270         // Iterate over each environment_result
1271         $continue = true;
1272         foreach ($environment_results as $environment_result) {
1273             $errorline   = false;
1274             $warningline = false;
1275             $stringtouse = '';
1276             if ($continue) {
1277                 $type = $environment_result->getPart();
1278                 $info = $environment_result->getInfo();
1279                 $status = $environment_result->getStatus();
1280                 $error_code = $environment_result->getErrorCode();
1281                 // Process Report field
1282                 $rec = new stdClass();
1283                 // Something has gone wrong at parsing time
1284                 if ($error_code) {
1285                     $stringtouse = 'environmentxmlerror';
1286                     $rec->error_code = $error_code;
1287                     $status = get_string('error');
1288                     $errorline = true;
1289                     $continue = false;
1290                 }
1291
1292                 if ($continue) {
1293                     if ($rec->needed = $environment_result->getNeededVersion()) {
1294                         // We are comparing versions
1295                         $rec->current = $environment_result->getCurrentVersion();
1296                         if ($environment_result->getLevel() == 'required') {
1297                             $stringtouse = 'environmentrequireversion';
1298                         } else {
1299                             $stringtouse = 'environmentrecommendversion';
1300                         }
1301
1302                     } else if ($environment_result->getPart() == 'custom_check') {
1303                         // We are checking installed & enabled things
1304                         if ($environment_result->getLevel() == 'required') {
1305                             $stringtouse = 'environmentrequirecustomcheck';
1306                         } else {
1307                             $stringtouse = 'environmentrecommendcustomcheck';
1308                         }
1309
1310                     } else if ($environment_result->getPart() == 'php_setting') {
1311                         if ($status) {
1312                             $stringtouse = 'environmentsettingok';
1313                         } else if ($environment_result->getLevel() == 'required') {
1314                             $stringtouse = 'environmentmustfixsetting';
1315                         } else {
1316                             $stringtouse = 'environmentshouldfixsetting';
1317                         }
1318
1319                     } else {
1320                         if ($environment_result->getLevel() == 'required') {
1321                             $stringtouse = 'environmentrequireinstall';
1322                         } else {
1323                             $stringtouse = 'environmentrecommendinstall';
1324                         }
1325                     }
1326
1327                     // Calculate the status value
1328                     if ($environment_result->getBypassStr() != '') {            //Handle bypassed result (warning)
1329                         $status = get_string('bypassed');
1330                         $warningline = true;
1331                     } else if ($environment_result->getRestrictStr() != '') {   //Handle restricted result (error)
1332                         $status = get_string('restricted');
1333                         $errorline = true;
1334                     } else {
1335                         if ($status) {                                          //Handle ok result (ok)
1336                             $status = get_string('ok');
1337                         } else {
1338                             if ($environment_result->getLevel() == 'optional') {//Handle check result (warning)
1339                                 $status = get_string('check');
1340                                 $warningline = true;
1341                             } else {                                            //Handle error result (error)
1342                                 $status = get_string('check');
1343                                 $errorline = true;
1344                             }
1345                         }
1346                     }
1347                 }
1348
1349                 // Build the text
1350                 $linkparts = array();
1351                 $linkparts[] = 'admin/environment';
1352                 $linkparts[] = $type;
1353                 if (!empty($info)){
1354                    $linkparts[] = $info;
1355                 }
1356                 if (empty($CFG->docroot)) {
1357                     $report = get_string($stringtouse, 'admin', $rec);
1358                 } else {
1359                     $report = $this->doc_link(join($linkparts, '/'), get_string($stringtouse, 'admin', $rec));
1360                 }
1361
1362                 // Format error or warning line
1363                 if ($errorline || $warningline) {
1364                     $messagetype = $errorline? 'error':'warn';
1365                 } else {
1366                     $messagetype = 'ok';
1367                 }
1368                 $status = '<span class="'.$messagetype.'">'.$status.'</span>';
1369                 // Here we'll store all the feedback found
1370                 $feedbacktext = '';
1371                 // Append the feedback if there is some
1372                 $feedbacktext .= $environment_result->strToReport($environment_result->getFeedbackStr(), $messagetype);
1373                 //Append the bypass if there is some
1374                 $feedbacktext .= $environment_result->strToReport($environment_result->getBypassStr(), 'warn');
1375                 //Append the restrict if there is some
1376                 $feedbacktext .= $environment_result->strToReport($environment_result->getRestrictStr(), 'error');
1377
1378                 $report .= $feedbacktext;
1379
1380                 // Add the row to the table
1381                 if ($environment_result->getPart() == 'custom_check'){
1382                     $otherdata[$messagetype][] = array ($info, $report, $status);
1383                 } else {
1384                     $serverdata[$messagetype][] = array ($type, $info, $report, $status);
1385                 }
1386             }
1387         }
1388
1389         //put errors first in
1390         $servertable->data = array_merge($serverdata['error'], $serverdata['warn'], $serverdata['ok']);
1391         $othertable->data = array_merge($otherdata['error'], $otherdata['warn'], $otherdata['ok']);
1392
1393         // Print table
1394         $output = '';
1395         $output .= $this->heading(get_string('serverchecks', 'admin'));
1396         $output .= html_writer::table($servertable);
1397         if (count($othertable->data)){
1398             $output .= $this->heading(get_string('customcheck', 'admin'));
1399             $output .= html_writer::table($othertable);
1400         }
1401
1402         // Finally, if any error has happened, print the summary box
1403         if (!$result) {
1404             $output .= $this->box(get_string('environmenterrortodo', 'admin'), 'environmentbox errorbox');
1405         }
1406
1407         return $output;
1408     }
1409 }