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<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* Various upgrade/install related functions and classes.
*
* @package core
* @subpackage upgrade
* @copyright 1999 onwards Martin Dougiamas (http://dougiamas.com)
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
/** UPGRADE_LOG_NORMAL = 0 */
define('UPGRADE_LOG_NORMAL', 0);
/** UPGRADE_LOG_NOTICE = 1 */
define('UPGRADE_LOG_NOTICE', 1);
/** UPGRADE_LOG_ERROR = 2 */
define('UPGRADE_LOG_ERROR', 2);
/**
* Exception indicating unknown error during upgrade.
*
* @package core
* @subpackage upgrade
* @copyright 2009 Petr Skoda {@link http://skodak.org}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class upgrade_exception extends moodle_exception {
function __construct($plugin, $version, $debuginfo=NULL) {
global $CFG;
$a = (object)array('plugin'=>$plugin, 'version'=>$version);
parent::__construct('upgradeerror', 'admin', "$CFG->wwwroot/$CFG->admin/index.php", $a, $debuginfo);
}
}
/**
* Exception indicating downgrade error during upgrade.
*
* @package core
* @subpackage upgrade
* @copyright 2009 Petr Skoda {@link http://skodak.org}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class downgrade_exception extends moodle_exception {
function __construct($plugin, $oldversion, $newversion) {
global $CFG;
$plugin = is_null($plugin) ? 'moodle' : $plugin;
$a = (object)array('plugin'=>$plugin, 'oldversion'=>$oldversion, 'newversion'=>$newversion);
parent::__construct('cannotdowngrade', 'debug', "$CFG->wwwroot/$CFG->admin/index.php", $a);
}
}
/**
* @package core
* @subpackage upgrade
* @copyright 2009 Petr Skoda {@link http://skodak.org}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class upgrade_requires_exception extends moodle_exception {
function __construct($plugin, $pluginversion, $currentmoodle, $requiremoodle) {
global $CFG;
$a = new stdClass();
$a->pluginname = $plugin;
$a->pluginversion = $pluginversion;
$a->currentmoodle = $currentmoodle;
$a->requiremoodle = $requiremoodle;
parent::__construct('pluginrequirementsnotmet', 'error', "$CFG->wwwroot/$CFG->admin/index.php", $a);
}
}
/**
* Exception thrown when attempting to install a plugin that declares incompatibility with moodle version
*
* @package core
* @subpackage upgrade
* @copyright 2019 Peter Burnett <peterburnett@catalyst-au.net>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class plugin_incompatible_exception extends moodle_exception {
/**
* Constructor function for exception
*
* @param \core\plugininfo\base $plugin The plugin causing the exception
* @param int $pluginversion The version of the plugin causing the exception
*/
public function __construct($plugin, $pluginversion) {
global $CFG;
$a = new stdClass();
$a->pluginname = $plugin;
$a->pluginversion = $pluginversion;
$a->moodleversion = $CFG->branch;
parent::__construct('pluginunsupported', 'error', "$CFG->wwwroot/$CFG->admin/index.php", $a);
}
}
/**
* @package core
* @subpackage upgrade
* @copyright 2009 Petr Skoda {@link http://skodak.org}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class plugin_defective_exception extends moodle_exception {
function __construct($plugin, $details) {
global $CFG;
parent::__construct('detectedbrokenplugin', 'error', "$CFG->wwwroot/$CFG->admin/index.php", $plugin, $details);
}
}
/**
* Misplaced plugin exception.
*
* Note: this should be used only from the upgrade/admin code.
*
* @package core
* @subpackage upgrade
* @copyright 2009 Petr Skoda {@link http://skodak.org}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class plugin_misplaced_exception extends moodle_exception {
/**
* Constructor.
* @param string $component the component from version.php
* @param string $expected expected directory, null means calculate
* @param string $current plugin directory path
*/
public function __construct($component, $expected, $current) {
global $CFG;
if (empty($expected)) {
list($type, $plugin) = core_component::normalize_component($component);
$plugintypes = core_component::get_plugin_types();
if (isset($plugintypes[$type])) {
$expected = $plugintypes[$type] . '/' . $plugin;
}
}
if (strpos($expected, '$CFG->dirroot') !== 0) {
$expected = str_replace($CFG->dirroot, '$CFG->dirroot', $expected);
}
if (strpos($current, '$CFG->dirroot') !== 0) {
$current = str_replace($CFG->dirroot, '$CFG->dirroot', $current);
}
$a = new stdClass();
$a->component = $component;
$a->expected = $expected;
$a->current = $current;
parent::__construct('detectedmisplacedplugin', 'core_plugin', "$CFG->wwwroot/$CFG->admin/index.php", $a);
}
}
/**
* Static class monitors performance of upgrade steps.
*/
class core_upgrade_time {
/** @var float Time at start of current upgrade (plugin/system) */
protected static $before;
/** @var float Time at end of last savepoint */
protected static $lastsavepoint;
/** @var bool Flag to indicate whether we are recording timestamps or not. */
protected static $isrecording = false;
/**
* Records current time at the start of the current upgrade item, e.g. plugin.
*/
public static function record_start() {
self::$before = microtime(true);
self::$lastsavepoint = self::$before;
self::$isrecording = true;
}
/**
* Records current time at the end of a given numbered step.
*
* @param float $version Version number (may have decimals, or not)
*/
public static function record_savepoint($version) {
global $CFG, $OUTPUT;
// In developer debug mode we show a notification after each individual save point.
if ($CFG->debugdeveloper && self::$isrecording) {
$time = microtime(true);
$notification = new \core\output\notification($version . ': ' .
get_string('successduration', '', format_float($time - self::$lastsavepoint, 2)),
\core\output\notification::NOTIFY_SUCCESS);
$notification->set_show_closebutton(false);
echo $OUTPUT->render($notification);
self::$lastsavepoint = $time;
}
}
/**
* Gets the time since the record_start function was called, rounded to 2 digits.
*
* @return float Elapsed time
*/
public static function get_elapsed() {
return microtime(true) - self::$before;
}
}
/**
* Sets maximum expected time needed for upgrade task.
* Please always make sure that upgrade will not run longer!
*
* The script may be automatically aborted if upgrade times out.
*
* @category upgrade
* @param int $max_execution_time in seconds (can not be less than 60 s)
*/
function upgrade_set_timeout($max_execution_time=300) {
global $CFG;
if (!isset($CFG->upgraderunning) or $CFG->upgraderunning < time()) {
$upgraderunning = get_config(null, 'upgraderunning');
} else {
$upgraderunning = $CFG->upgraderunning;
}
if (!$upgraderunning) {
if (CLI_SCRIPT) {
// never stop CLI upgrades
$upgraderunning = 0;
} else {
// web upgrade not running or aborted
print_error('upgradetimedout', 'admin', "$CFG->wwwroot/$CFG->admin/");
}
}
if ($max_execution_time < 60) {
// protection against 0 here
$max_execution_time = 60;
}
$expected_end = time() + $max_execution_time;
if ($expected_end < $upgraderunning + 10 and $expected_end > $upgraderunning - 10) {
// no need to store new end, it is nearly the same ;-)
return;
}
if (CLI_SCRIPT) {
// there is no point in timing out of CLI scripts, admins can stop them if necessary
core_php_time_limit::raise();
} else {
core_php_time_limit::raise($max_execution_time);
}
set_config('upgraderunning', $expected_end); // keep upgrade locked until this time
}
/**
* Upgrade savepoint, marks end of each upgrade block.
* It stores new main version, resets upgrade timeout
* and abort upgrade if user cancels page loading.
*
* Please do not make large upgrade blocks with lots of operations,
* for example when adding tables keep only one table operation per block.
*
* @category upgrade
* @param bool $result false if upgrade step failed, true if completed
* @param string or float $version main version
* @param bool $allowabort allow user to abort script execution here
* @return void
*/
function upgrade_main_savepoint($result, $version, $allowabort=true) {
global $CFG;
//sanity check to avoid confusion with upgrade_mod_savepoint usage.
if (!is_bool($allowabort)) {
$errormessage = 'Parameter type mismatch. Are you mixing up upgrade_main_savepoint() and upgrade_mod_savepoint()?';
throw new coding_exception($errormessage);
}
if (!$result) {
throw new upgrade_exception(null, $version);
}
if ($CFG->version >= $version) {
// something really wrong is going on in main upgrade script
throw new downgrade_exception(null, $CFG->version, $version);
}
set_config('version', $version);
upgrade_log(UPGRADE_LOG_NORMAL, null, 'Upgrade savepoint reached');
// reset upgrade timeout to default
upgrade_set_timeout();
core_upgrade_time::record_savepoint($version);
// this is a safe place to stop upgrades if user aborts page loading
if ($allowabort and connection_aborted()) {
die;
}
}
/**
* Module upgrade savepoint, marks end of module upgrade blocks
* It stores module version, resets upgrade timeout
* and abort upgrade if user cancels page loading.
*
* @category upgrade
* @param bool $result false if upgrade step failed, true if completed
* @param string or float $version main version
* @param string $modname name of module
* @param bool $allowabort allow user to abort script execution here
* @return void
*/
function upgrade_mod_savepoint($result, $version, $modname, $allowabort=true) {
global $DB;
$component = 'mod_'.$modname;
if (!$result) {
throw new upgrade_exception($component, $version);
}
$dbversion = $DB->get_field('config_plugins', 'value', array('plugin'=>$component, 'name'=>'version'));
if (!$module = $DB->get_record('modules', array('name'=>$modname))) {
print_error('modulenotexist', 'debug', '', $modname);
}
if ($dbversion >= $version) {
// something really wrong is going on in upgrade script
throw new downgrade_exception($component, $dbversion, $version);
}
set_config('version', $version, $component);
upgrade_log(UPGRADE_LOG_NORMAL, $component, 'Upgrade savepoint reached');
// reset upgrade timeout to default
upgrade_set_timeout();
core_upgrade_time::record_savepoint($version);
// this is a safe place to stop upgrades if user aborts page loading
if ($allowabort and connection_aborted()) {
die;
}
}
/**
* Blocks upgrade savepoint, marks end of blocks upgrade blocks
* It stores block version, resets upgrade timeout
* and abort upgrade if user cancels page loading.
*
* @category upgrade
* @param bool $result false if upgrade step failed, true if completed
* @param string or float $version main version
* @param string $blockname name of block
* @param bool $allowabort allow user to abort script execution here
* @return void
*/
function upgrade_block_savepoint($result, $version, $blockname, $allowabort=true) {
global $DB;
$component = 'block_'.$blockname;
if (!$result) {
throw new upgrade_exception($component, $version);
}
$dbversion = $DB->get_field('config_plugins', 'value', array('plugin'=>$component, 'name'=>'version'));
if (!$block = $DB->get_record('block', array('name'=>$blockname))) {
print_error('blocknotexist', 'debug', '', $blockname);
}
if ($dbversion >= $version) {
// something really wrong is going on in upgrade script
throw new downgrade_exception($component, $dbversion, $version);
}
set_config('version', $version, $component);
upgrade_log(UPGRADE_LOG_NORMAL, $component, 'Upgrade savepoint reached');
// reset upgrade timeout to default
upgrade_set_timeout();
core_upgrade_time::record_savepoint($version);
// this is a safe place to stop upgrades if user aborts page loading
if ($allowabort and connection_aborted()) {
die;
}
}
/**
* Plugins upgrade savepoint, marks end of blocks upgrade blocks
* It stores plugin version, resets upgrade timeout
* and abort upgrade if user cancels page loading.
*
* @category upgrade
* @param bool $result false if upgrade step failed, true if completed
* @param string or float $version main version
* @param string $type The type of the plugin.
* @param string $plugin The name of the plugin.
* @param bool $allowabort allow user to abort script execution here
* @return void
*/
function upgrade_plugin_savepoint($result, $version, $type, $plugin, $allowabort=true) {
global $DB;
$component = $type.'_'.$plugin;
if (!$result) {
throw new upgrade_exception($component, $version);
}
$dbversion = $DB->get_field('config_plugins', 'value', array('plugin'=>$component, 'name'=>'version'));
if ($dbversion >= $version) {
// Something really wrong is going on in the upgrade script
throw new downgrade_exception($component, $dbversion, $version);
}
set_config('version', $version, $component);
upgrade_log(UPGRADE_LOG_NORMAL, $component, 'Upgrade savepoint reached');
// Reset upgrade timeout to default
upgrade_set_timeout();
core_upgrade_time::record_savepoint($version);
// This is a safe place to stop upgrades if user aborts page loading
if ($allowabort and connection_aborted()) {
die;
}
}
/**
* Detect if there are leftovers in PHP source files.
*
* During main version upgrades administrators MUST move away
* old PHP source files and start from scratch (or better
* use git).
*
* @return bool true means borked upgrade, false means previous PHP files were properly removed
*/
function upgrade_stale_php_files_present(): bool {
global $CFG;
$someexamplesofremovedfiles = [
// Removed in 4.0.
'/admin/classes/task_log_table.php',
'/admin/cli/mysql_engine.php',
'/lib/babel-polyfill/polyfill.js',
'/lib/typo3/class.t3lib_cs.php',
'/question/tests/category_class_test.php',
// Removed in 3.11.
'/customfield/edit.php',
'/lib/phpunit/classes/autoloader.php',
'/lib/xhprof/README',
'/message/defaultoutputs.php',
'/user/files_form.php',
// Removed in 3.10.
'/grade/grading/classes/privacy/gradingform_provider.php',
'/lib/coursecatlib.php',
'/lib/form/htmleditor.php',
'/message/classes/output/messagearea/contact.php',
// Removed in 3.9.
'/course/classes/output/modchooser_item.php',
'/course/yui/build/moodle-course-modchooser/moodle-course-modchooser-min.js',
'/course/yui/src/modchooser/js/modchooser.js',
'/h5p/classes/autoloader.php',
'/lib/adodb/readme.txt',
'/lib/maxmind/GeoIp2/Compat/JsonSerializable.php',
// Removed in 3.8.
'/lib/amd/src/modal_confirm.js',
'/lib/fonts/font-awesome-4.7.0/css/font-awesome.css',
'/lib/jquery/jquery-3.2.1.min.js',
'/lib/recaptchalib.php',
'/lib/sessionkeepalive_ajax.php',
'/lib/yui/src/checknet/js/checknet.js',
'/question/amd/src/qbankmanager.js',
// Removed in 3.7.
'/lib/form/yui/src/showadvanced/js/showadvanced.js',
'/lib/tests/output_external_test.php',
'/message/amd/src/message_area.js',
'/message/templates/message_area.mustache',
'/question/yui/src/qbankmanager/build.json',
// Removed in 3.6.
'/lib/classes/session/memcache.php',
'/lib/eventslib.php',
'/lib/form/submitlink.php',
'/lib/medialib.php',
'/lib/password_compat/lib/password.php',
// Removed in 3.5.
'/lib/dml/mssql_native_moodle_database.php',
'/lib/dml/mssql_native_moodle_recordset.php',
'/lib/dml/mssql_native_moodle_temptables.php',
// Removed in 3.4.
'/auth/README.txt',
'/calendar/set.php',
'/enrol/users.php',
'/enrol/yui/rolemanager/assets/skins/sam/rolemanager.css',
// Removed in 3.3.
'/badges/backpackconnect.php',
'/calendar/yui/src/info/assets/skins/sam/moodle-calendar-info.css',
'/competency/classes/external/exporter.php',
'/mod/forum/forum.js',
'/user/pixgroup.php',
// Removed in 3.2.
'/calendar/preferences.php',
'/lib/alfresco/',
'/lib/jquery/jquery-1.12.1.min.js',
'/lib/password_compat/tests/',
'/lib/phpunit/classes/unittestcase.php',
// Removed in 3.1.
'/lib/classes/log/sql_internal_reader.php',
'/lib/zend/',
'/mod/forum/pix/icon.gif',
'/tag/templates/tagname.mustache',
// Removed in 3.0.
'/mod/lti/grade.php',
'/tag/coursetagslib.php',
// Removed in 2.9.
'/lib/timezone.txt',
// Removed in 2.8.
'/course/delete_category_form.php',
// Removed in 2.7.
'/admin/tool/qeupgradehelper/version.php',
// Removed in 2.6.
'/admin/block.php',
'/admin/oacleanup.php',
// Removed in 2.5.
'/backup/lib.php',
'/backup/bb/README.txt',
'/lib/excel/test.php',
// Removed in 2.4.
'/admin/tool/unittest/simpletestlib.php',
// Removed in 2.3.
'/lib/minify/builder/',
// Removed in 2.2.
'/lib/yui/3.4.1pr1/',
// Removed in 2.2.
'/search/cron_php5.php',
'/course/report/log/indexlive.php',
'/admin/report/backups/index.php',
'/admin/generator.php',
// Removed in 2.1.
'/lib/yui/2.8.0r4/',
// Removed in 2.0.
'/blocks/admin/block_admin.php',
'/blocks/admin_tree/block_admin_tree.php',
];
foreach ($someexamplesofremovedfiles as $file) {
if (file_exists($CFG->dirroot.$file)) {
return true;
}
}
return false;
}
/**
* Upgrade plugins
* @param string $type The type of plugins that should be updated (e.g. 'enrol', 'qtype')
* return void
*/
function upgrade_plugins($type, $startcallback, $endcallback, $verbose) {
global $CFG, $DB;
/// special cases
if ($type === 'mod') {
return upgrade_plugins_modules($startcallback, $endcallback, $verbose);
} else if ($type === 'block') {
return upgrade_plugins_blocks($startcallback, $endcallback, $verbose);
}
$plugs = core_component::get_plugin_list($type);
foreach ($plugs as $plug=>$fullplug) {
// Reset time so that it works when installing a large number of plugins
core_php_time_limit::raise(600);
$component = clean_param($type.'_'.$plug, PARAM_COMPONENT); // standardised plugin name
// check plugin dir is valid name
if (empty($component)) {
throw new plugin_defective_exception($type.'_'.$plug, 'Invalid plugin directory name.');
}
if (!is_readable($fullplug.'/version.php')) {
continue;
}
$plugin = new stdClass();
$plugin->version = null;
$module = $plugin; // Prevent some notices when plugin placed in wrong directory.
require($fullplug.'/version.php'); // defines $plugin with version etc
unset($module);
if (empty($plugin->version)) {
throw new plugin_defective_exception($component, 'Missing $plugin->version number in version.php.');
}
if (empty($plugin->component)) {
throw new plugin_defective_exception($component, 'Missing $plugin->component declaration in version.php.');
}
if ($plugin->component !== $component) {
throw new plugin_misplaced_exception($plugin->component, null, $fullplug);
}
$plugin->name = $plug;
$plugin->fullname = $component;
if (!empty($plugin->requires)) {
if ($plugin->requires > $CFG->version) {
throw new upgrade_requires_exception($component, $plugin->version, $CFG->version, $plugin->requires);
} else if ($plugin->requires < 2010000000) {
throw new plugin_defective_exception($component, 'Plugin is not compatible with Moodle 2.x or later.');
}
}
// Throw exception if plugin is incompatible with moodle version.
if (!empty($plugin->incompatible)) {
if ($CFG->branch >= $plugin->incompatible) {
throw new plugin_incompatible_exception($component, $plugin->version);
}
}
// try to recover from interrupted install.php if needed
if (file_exists($fullplug.'/db/install.php')) {
if (get_config($plugin->fullname, 'installrunning')) {
require_once($fullplug.'/db/install.php');
$recover_install_function = 'xmldb_'.$plugin->fullname.'_install_recovery';
if (function_exists($recover_install_function)) {
$startcallback($component, true, $verbose);
$recover_install_function();
unset_config('installrunning', $plugin->fullname);
update_capabilities($component);
log_update_descriptions($component);
external_update_descriptions($component);
\core\task\manager::reset_scheduled_tasks_for_component($component);
\core_analytics\manager::update_default_models_for_component($component);
message_update_providers($component);
\core\message\inbound\manager::update_handlers_for_component($component);
if ($type === 'message') {
message_update_processors($plug);
}
upgrade_plugin_mnet_functions($component);
core_tag_area::reset_definitions_for_component($component);
$endcallback($component, true, $verbose);
}
}
}
$installedversion = $DB->get_field('config_plugins', 'value', array('name'=>'version', 'plugin'=>$component)); // No caching!
if (empty($installedversion)) { // new installation
$startcallback($component, true, $verbose);
/// Install tables if defined
if (file_exists($fullplug.'/db/install.xml')) {
$DB->get_manager()->install_from_xmldb_file($fullplug.'/db/install.xml');
}
/// store version
upgrade_plugin_savepoint(true, $plugin->version, $type, $plug, false);
/// execute post install file
if (file_exists($fullplug.'/db/install.php')) {
require_once($fullplug.'/db/install.php');
set_config('installrunning', 1, $plugin->fullname);
$post_install_function = 'xmldb_'.$plugin->fullname.'_install';
$post_install_function();
unset_config('installrunning', $plugin->fullname);
}
/// Install various components
update_capabilities($component);
log_update_descriptions($component);
external_update_descriptions($component);
\core\task\manager::reset_scheduled_tasks_for_component($component);
\core_analytics\manager::update_default_models_for_component($component);
message_update_providers($component);
\core\message\inbound\manager::update_handlers_for_component($component);
if ($type === 'message') {
message_update_processors($plug);
}
upgrade_plugin_mnet_functions($component);
core_tag_area::reset_definitions_for_component($component);
$endcallback($component, true, $verbose);
} else if ($installedversion < $plugin->version) { // upgrade
/// Run the upgrade function for the plugin.
$startcallback($component, false, $verbose);
if (is_readable($fullplug.'/db/upgrade.php')) {
require_once($fullplug.'/db/upgrade.php'); // defines upgrading function
$newupgrade_function = 'xmldb_'.$plugin->fullname.'_upgrade';
$result = $newupgrade_function($installedversion);
} else {
$result = true;
}
$installedversion = $DB->get_field('config_plugins', 'value', array('name'=>'version', 'plugin'=>$component)); // No caching!
if ($installedversion < $plugin->version) {
// store version if not already there
upgrade_plugin_savepoint($result, $plugin->version, $type, $plug, false);
}
/// Upgrade various components
update_capabilities($component);
log_update_descriptions($component);
external_update_descriptions($component);
\core\task\manager::reset_scheduled_tasks_for_component($component);
\core_analytics\manager::update_default_models_for_component($component);
message_update_providers($component);
\core\message\inbound\manager::update_handlers_for_component($component);
if ($type === 'message') {
// Ugly hack!
message_update_processors($plug);
}
upgrade_plugin_mnet_functions($component);
core_tag_area::reset_definitions_for_component($component);
$endcallback($component, false, $verbose);
} else if ($installedversion > $plugin->version) {
throw new downgrade_exception($component, $installedversion, $plugin->version);
}
}
}
/**
* Find and check all modules and load them up or upgrade them if necessary
*
* @global object
* @global object
*/
function upgrade_plugins_modules($startcallback, $endcallback, $verbose) {
global $CFG, $DB;
$mods = core_component::get_plugin_list('mod');
foreach ($mods as $mod=>$fullmod) {
if ($mod === 'NEWMODULE') { // Someone has unzipped the template, ignore it
continue;
}
$component = clean_param('mod_'.$mod, PARAM_COMPONENT);
// check module dir is valid name
if (empty($component)) {
throw new plugin_defective_exception('mod_'.$mod, 'Invalid plugin directory name.');
}
if (!is_readable($fullmod.'/version.php')) {
throw new plugin_defective_exception($component, 'Missing version.php');
}
$module = new stdClass();
$plugin = new stdClass();
$plugin->version = null;
require($fullmod .'/version.php'); // Defines $plugin with version etc.
// Check if the legacy $module syntax is still used.
if (!is_object($module) or (count((array)$module) > 0)) {
throw new plugin_defective_exception($component, 'Unsupported $module syntax detected in version.php');
}
// Prepare the record for the {modules} table.
$module = clone($plugin);
unset($module->version);
unset($module->component);
unset($module->dependencies);
unset($module->release);
if (empty($plugin->version)) {
throw new plugin_defective_exception($component, 'Missing $plugin->version number in version.php.');
}
if (empty($plugin->component)) {
throw new plugin_defective_exception($component, 'Missing $plugin->component declaration in version.php.');
}
if ($plugin->component !== $component) {
throw new plugin_misplaced_exception($plugin->component, null, $fullmod);
}
if (!empty($plugin->requires)) {
if ($plugin->requires > $CFG->version) {
throw new upgrade_requires_exception($component, $plugin->version, $CFG->version, $plugin->requires);
} else if ($plugin->requires < 2010000000) {
throw new plugin_defective_exception($component, 'Plugin is not compatible with Moodle 2.x or later.');
}
}
if (empty($module->cron)) {
$module->cron = 0;
}
// all modules must have en lang pack
if (!is_readable("$fullmod/lang/en/$mod.php")) {
throw new plugin_defective_exception($component, 'Missing mandatory en language pack.');
}
$module->name = $mod; // The name MUST match the directory
$installedversion = $DB->get_field('config_plugins', 'value', array('name'=>'version', 'plugin'=>$component)); // No caching!
if (file_exists($fullmod.'/db/install.php')) {
if (get_config($module->name, 'installrunning')) {
require_once($fullmod.'/db/install.php');
$recover_install_function = 'xmldb_'.$module->name.'_install_recovery';
if (function_exists($recover_install_function)) {
$startcallback($component, true, $verbose);
$recover_install_function();
unset_config('installrunning', $module->name);
// Install various components too
update_capabilities($component);
log_update_descriptions($component);
external_update_descriptions($component);
\core\task\manager::reset_scheduled_tasks_for_component($component);
\core_analytics\manager::update_default_models_for_component($component);
message_update_providers($component);
\core\message\inbound\manager::update_handlers_for_component($component);
upgrade_plugin_mnet_functions($component);
core_tag_area::reset_definitions_for_component($component);
$endcallback($component, true, $verbose);
}
}
}
if (empty($installedversion)) {
$startcallback($component, true, $verbose);
/// Execute install.xml (XMLDB) - must be present in all modules
$DB->get_manager()->install_from_xmldb_file($fullmod.'/db/install.xml');
/// Add record into modules table - may be needed in install.php already
$module->id = $DB->insert_record('modules', $module);
upgrade_mod_savepoint(true, $plugin->version, $module->name, false);
/// Post installation hook - optional
if (file_exists("$fullmod/db/install.php")) {
require_once("$fullmod/db/install.php");
// Set installation running flag, we need to recover after exception or error
set_config('installrunning', 1, $module->name);
$post_install_function = 'xmldb_'.$module->name.'_install';
$post_install_function();
unset_config('installrunning', $module->name);
}
/// Install various components
update_capabilities($component);
log_update_descriptions($component);
external_update_descriptions($component);
\core\task\manager::reset_scheduled_tasks_for_component($component);
\core_analytics\manager::update_default_models_for_component($component);
message_update_providers($component);
\core\message\inbound\manager::update_handlers_for_component($component);
upgrade_plugin_mnet_functions($component);
core_tag_area::reset_definitions_for_component($component);
$endcallback($component, true, $verbose);
} else if ($installedversion < $plugin->version) {
/// If versions say that we need to upgrade but no upgrade files are available, notify and continue
$startcallback($component, false, $verbose);
if (is_readable($fullmod.'/db/upgrade.php')) {
require_once($fullmod.'/db/upgrade.php'); // defines new upgrading function
$newupgrade_function = 'xmldb_'.$module->name.'_upgrade';
$result = $newupgrade_function($installedversion, $module);
} else {
$result = true;
}
$installedversion = $DB->get_field('config_plugins', 'value', array('name'=>'version', 'plugin'=>$component)); // No caching!
$currmodule = $DB->get_record('modules', array('name'=>$module->name));
if ($installedversion < $plugin->version) {
// store version if not already there
upgrade_mod_savepoint($result, $plugin->version, $mod, false);
}
// update cron flag if needed
if ($currmodule->cron != $module->cron) {
$DB->set_field('modules', 'cron', $module->cron, array('name' => $module->name));
}
// Upgrade various components
update_capabilities($component);
log_update_descriptions($component);
external_update_descriptions($component);
\core\task\manager::reset_scheduled_tasks_for_component($component);
\core_analytics\manager::update_default_models_for_component($component);
message_update_providers($component);
\core\message\inbound\manager::update_handlers_for_component($component);
upgrade_plugin_mnet_functions($component);
core_tag_area::reset_definitions_for_component($component);
$endcallback($component, false, $verbose);
} else if ($installedversion > $plugin->version) {
throw new downgrade_exception($component, $installedversion, $plugin->version);
}
}
}
/**
* This function finds all available blocks and install them
* into blocks table or do all the upgrade process if newer.
*
* @global object
* @global object
*/
function upgrade_plugins_blocks($startcallback, $endcallback, $verbose) {
global $CFG, $DB;
require_once($CFG->dirroot.'/blocks/moodleblock.class.php');
$blocktitles = array(); // we do not want duplicate titles
//Is this a first install
$first_install = null;
$blocks = core_component::get_plugin_list('block');
foreach ($blocks as $blockname=>$fullblock) {
if (is_null($first_install)) {
$first_install = ($DB->count_records('block_instances') == 0);
}
if ($blockname === 'NEWBLOCK') { // Someone has unzipped the template, ignore it
continue;
}
$component = clean_param('block_'.$blockname, PARAM_COMPONENT);
// check block dir is valid name
if (empty($component)) {
throw new plugin_defective_exception('block_'.$blockname, 'Invalid plugin directory name.');
}
if (!is_readable($fullblock.'/version.php')) {
throw new plugin_defective_exception('block/'.$blockname, 'Missing version.php file.');
}
$plugin = new stdClass();
$plugin->version = null;
$plugin->cron = 0;
$module = $plugin; // Prevent some notices when module placed in wrong directory.
include($fullblock.'/version.php');
unset($module);
$block = clone($plugin);
unset($block->version);
unset($block->component);
unset($block->dependencies);
unset($block->release);
if (empty($plugin->version)) {
throw new plugin_defective_exception($component, 'Missing block version number in version.php.');
}
if (empty($plugin->component)) {
throw new plugin_defective_exception($component, 'Missing $plugin->component declaration in version.php.');
}
if ($plugin->component !== $component) {
throw new plugin_misplaced_exception($plugin->component, null, $fullblock);
}
if (!empty($plugin->requires)) {
if ($plugin->requires > $CFG->version) {
throw new upgrade_requires_exception($component, $plugin->version, $CFG->version, $plugin->requires);
} else if ($plugin->requires < 2010000000) {
throw new plugin_defective_exception($component, 'Plugin is not compatible with Moodle 2.x or later.');
}
}
if (!is_readable($fullblock.'/block_'.$blockname.'.php')) {
throw new plugin_defective_exception('block/'.$blockname, 'Missing main block class file.');
}
include_once($fullblock.'/block_'.$blockname.'.php');
$classname = 'block_'.$blockname;
if (!class_exists($classname)) {
throw new plugin_defective_exception($component, 'Can not load main class.');
}
$blockobj = new $classname; // This is what we'll be testing
$blocktitle = $blockobj->get_title();
// OK, it's as we all hoped. For further tests, the object will do them itself.
if (!$blockobj->_self_test()) {
throw new plugin_defective_exception($component, 'Self test failed.');
}
$block->name = $blockname; // The name MUST match the directory
$installedversion = $DB->get_field('config_plugins', 'value', array('name'=>'version', 'plugin'=>$component)); // No caching!
if (file_exists($fullblock.'/db/install.php')) {
if (get_config('block_'.$blockname, 'installrunning')) {
require_once($fullblock.'/db/install.php');
$recover_install_function = 'xmldb_block_'.$blockname.'_install_recovery';
if (function_exists($recover_install_function)) {
$startcallback($component, true, $verbose);
$recover_install_function();
unset_config('installrunning', 'block_'.$blockname);
// Install various components
update_capabilities($component);
log_update_descriptions($component);
external_update_descriptions($component);
\core\task\manager::reset_scheduled_tasks_for_component($component);
\core_analytics\manager::update_default_models_for_component($component);
message_update_providers($component);
\core\message\inbound\manager::update_handlers_for_component($component);
upgrade_plugin_mnet_functions($component);
core_tag_area::reset_definitions_for_component($component);
$endcallback($component, true, $verbose);
}
}
}
if (empty($installedversion)) { // block not installed yet, so install it
$conflictblock = array_search($blocktitle, $blocktitles);
if ($conflictblock !== false) {
// Duplicate block titles are not allowed, they confuse people
// AND PHP's associative arrays ;)
throw new plugin_defective_exception($component, get_string('blocknameconflict', 'error', (object)array('name'=>$block->name, 'conflict'=>$conflictblock)));
}
$startcallback($component, true, $verbose);
if (file_exists($fullblock.'/db/install.xml')) {
$DB->get_manager()->install_from_xmldb_file($fullblock.'/db/install.xml');
}
$block->id = $DB->insert_record('block', $block);
upgrade_block_savepoint(true, $plugin->version, $block->name, false);
if (file_exists($fullblock.'/db/install.php')) {
require_once($fullblock.'/db/install.php');
// Set installation running flag, we need to recover after exception or error
set_config('installrunning', 1, 'block_'.$blockname);
$post_install_function = 'xmldb_block_'.$blockname.'_install';
$post_install_function();
unset_config('installrunning', 'block_'.$blockname);
}
$blocktitles[$block->name] = $blocktitle;
// Install various components
update_capabilities($component);
log_update_descriptions($component);
external_update_descriptions($component);
\core\task\manager::reset_scheduled_tasks_for_component($component);
\core_analytics\manager::update_default_models_for_component($component);
message_update_providers($component);
\core\message\inbound\manager::update_handlers_for_component($component);
core_tag_area::reset_definitions_for_component($component);
upgrade_plugin_mnet_functions($component);
$endcallback($component, true, $verbose);
} else if ($installedversion < $plugin->version) {
$startcallback($component, false, $verbose);
if (is_readable($fullblock.'/db/upgrade.php')) {
require_once($fullblock.'/db/upgrade.php'); // defines new upgrading function
$newupgrade_function = 'xmldb_block_'.$blockname.'_upgrade';
$result = $newupgrade_function($installedversion, $block);
} else {
$result = true;
}
$installedversion = $DB->get_field('config_plugins', 'value', array('name'=>'version', 'plugin'=>$component)); // No caching!
$currblock = $DB->get_record('block', array('name'=>$block->name));
if ($installedversion < $plugin->version) {
// store version if not already there
upgrade_block_savepoint($result, $plugin->version, $block->name, false);
}
if ($currblock->cron != $block->cron) {
// update cron flag if needed
$DB->set_field('block', 'cron', $block->cron, array('id' => $currblock->id));
}
// Upgrade various components
update_capabilities($component);
log_update_descriptions($component);
external_update_descriptions($component);
\core\task\manager::reset_scheduled_tasks_for_component($component);
\core_analytics\manager::update_default_models_for_component($component);
message_update_providers($component);
\core\message\inbound\manager::update_handlers_for_component($component);
upgrade_plugin_mnet_functions($component);
core_tag_area::reset_definitions_for_component($component);
$endcallback($component, false, $verbose);
} else if ($installedversion > $plugin->version) {
throw new downgrade_exception($component, $installedversion, $plugin->version);
}
}
// Finally, if we are in the first_install of BLOCKS setup frontpage and admin page blocks
if ($first_install) {
//Iterate over each course - there should be only site course here now
if ($courses = $DB->get_records('course')) {
foreach ($courses as $course) {
blocks_add_default_course_blocks($course);
}
}
blocks_add_default_system_blocks();
}
}
/**
* Log_display description function used during install and upgrade.
*
* @param string $component name of component (moodle, mod_assignment, etc.)
* @return void
*/
function log_update_descriptions($component) {
global $DB;
$defpath = core_component::get_component_directory($component).'/db/log.php';
if (!file_exists($defpath)) {
$DB->delete_records('log_display', array('component'=>$component));
return;
}
// load new info
$logs = array();
include($defpath);
$newlogs = array();
foreach ($logs as $log) {
$newlogs[$log['module'].'-'.$log['action']] = $log; // kind of unique name
}
unset($logs);
$logs = $newlogs;
$fields = array('module', 'action', 'mtable', 'field');
// update all log fist
$dblogs = $DB->get_records('log_display', array('component'=>$component));
foreach ($dblogs as $dblog) {
$name = $dblog->module.'-'.$dblog->action;
if (empty($logs[$name])) {
$DB->delete_records('log_display', array('id'=>$dblog->id));
continue;
}
$log = $logs[$name];
unset($logs[$name]);
$update = false;
foreach ($fields as $field) {
if ($dblog->$field != $log[$field]) {
$dblog->$field = $log[$field];
$update = true;
}
}
if ($update) {
$DB->update_record('log_display', $dblog);
}
}
foreach ($logs as $log) {
$dblog = (object)$log;
$dblog->component = $component;
$DB->insert_record('log_display', $dblog);
}
}
/**
* Web service discovery function used during install and upgrade.
* @param string $component name of component (moodle, mod_assignment, etc.)
* @return void
*/
function external_update_descriptions($component) {
global $DB, $CFG;
$defpath = core_component::get_component_directory($component).'/db/services.php';
if (!file_exists($defpath)) {
require_once($CFG->dirroot.'/lib/externallib.php');
external_delete_descriptions($component);
return;
}
// load new info
$functions = array();
$services = array();
include($defpath);
// update all function fist
$dbfunctions = $DB->get_records('external_functions', array('component'=>$component));
foreach ($dbfunctions as $dbfunction) {
if (empty($functions[$dbfunction->name])) {
$DB->delete_records('external_functions', array('id'=>$dbfunction->id));
// do not delete functions from external_services_functions, beacuse
// we want to notify admins when functions used in custom services disappear
//TODO: this looks wrong, we have to delete it eventually (skodak)
continue;
}
$function = $functions[$dbfunction->name];
unset($functions[$dbfunction->name]);
$function['classpath'] = empty($function['classpath']) ? null : $function['classpath'];
$function['methodname'] = $function['methodname'] ?? 'execute';
$update = false;
if ($dbfunction->classname != $function['classname']) {
$dbfunction->classname = $function['classname'];
$update = true;
}
if ($dbfunction->methodname != $function['methodname']) {
$dbfunction->methodname = $function['methodname'];
$update = true;
}
if ($dbfunction->classpath != $function['classpath']) {
$dbfunction->classpath = $function['classpath'];
$update = true;
}
$functioncapabilities = array_key_exists('capabilities', $function)?$function['capabilities']:'';
if ($dbfunction->capabilities != $functioncapabilities) {
$dbfunction->capabilities = $functioncapabilities;
$update = true;
}
if (isset($function['services']) and is_array($function['services'])) {
sort($function['services']);
$functionservices = implode(',', $function['services']);
} else {
// Force null values in the DB.
$functionservices = null;
}
if ($dbfunction->services != $functionservices) {
// Now, we need to check if services were removed, in that case we need to remove the function from them.
$servicesremoved = array_diff(explode(",", $dbfunction->services), explode(",", $functionservices));
foreach ($servicesremoved as $removedshortname) {
if ($externalserviceid = $DB->get_field('external_services', 'id', array("shortname" => $removedshortname))) {
$DB->delete_records('external_services_functions', array('functionname' => $dbfunction->name,
'externalserviceid' => $externalserviceid));
}
}
$dbfunction->services = $functionservices;
$update = true;
}
if ($update) {
$DB->update_record('external_functions', $dbfunction);
}
}
foreach ($functions as $fname => $function) {
$dbfunction = new stdClass();
$dbfunction->name = $fname;
$dbfunction->classname = $function['classname'];
$dbfunction->methodname = $function['methodname'] ?? 'execute';
$dbfunction->classpath = empty($function['classpath']) ? null : $function['classpath'];
$dbfunction->component = $component;
$dbfunction->capabilities = array_key_exists('capabilities', $function)?$function['capabilities']:'';
if (isset($function['services']) and is_array($function['services'])) {
sort($function['services']);
$dbfunction->services = implode(',', $function['services']);
} else {
// Force null values in the DB.
$dbfunction->services = null;
}
$dbfunction->id = $DB->insert_record('external_functions', $dbfunction);
}
unset($functions);
// now deal with services
$dbservices = $DB->get_records('external_services', array('component'=>$component));
foreach ($dbservices as $dbservice) {
if (empty($services[$dbservice->name])) {
$DB->delete_records('external_tokens', array('externalserviceid'=>$dbservice->id));
$DB->delete_records('external_services_functions', array('externalserviceid'=>$dbservice->id));
$DB->delete_records('external_services_users', array('externalserviceid'=>$dbservice->id));
$DB->delete_records('external_services', array('id'=>$dbservice->id));
continue;
}
$service = $services[$dbservice->name];
unset($services[$dbservice->name]);
$service['enabled'] = empty($service['enabled']) ? 0 : $service['enabled'];
$service['requiredcapability'] = empty($service['requiredcapability']) ? null : $service['requiredcapability'];
$service['restrictedusers'] = !isset($service['restrictedusers']) ? 1 : $service['restrictedusers'];
$service['downloadfiles'] = !isset($service['downloadfiles']) ? 0 : $service['downloadfiles'];
$service['uploadfiles'] = !isset($service['uploadfiles']) ? 0 : $service['uploadfiles'];
$service['shortname'] = !isset($service['shortname']) ? null : $service['shortname'];
$update = false;
if ($dbservice->requiredcapability != $service['requiredcapability']) {
$dbservice->requiredcapability = $service['requiredcapability'];
$update = true;
}
if ($dbservice->restrictedusers != $service['restrictedusers']) {
$dbservice->restrictedusers = $service['restrictedusers'];
$update = true;
}
if ($dbservice->downloadfiles != $service['downloadfiles']) {
$dbservice->downloadfiles = $service['downloadfiles'];
$update = true;
}
if ($dbservice->uploadfiles != $service['uploadfiles']) {
$dbservice->uploadfiles = $service['uploadfiles'];
$update = true;
}
//if shortname is not a PARAM_ALPHANUMEXT, fail (tested here for service update and creation)
if (isset($service['shortname']) and
(clean_param($service['shortname'], PARAM_ALPHANUMEXT) != $service['shortname'])) {
throw new moodle_exception('installserviceshortnameerror', 'webservice', '', $service['shortname']);
}
if ($dbservice->shortname != $service['shortname']) {
//check that shortname is unique
if (isset($service['shortname'])) { //we currently accepts multiple shortname == null
$existingservice = $DB->get_record('external_services',
array('shortname' => $service['shortname']));
if (!empty($existingservice)) {
throw new moodle_exception('installexistingserviceshortnameerror', 'webservice', '', $service['shortname']);
}
}
$dbservice->shortname = $service['shortname'];
$update = true;
}
if ($update) {
$DB->update_record('external_services', $dbservice);
}
$functions = $DB->get_records('external_services_functions', array('externalserviceid'=>$dbservice->id));
foreach ($functions as $function) {
$key = array_search($function->functionname, $service['functions']);
if ($key === false) {
$DB->delete_records('external_services_functions', array('id'=>$function->id));
} else {
unset($service['functions'][$key]);
}
}
foreach ($service['functions'] as $fname) {
$newf = new stdClass();
$newf->externalserviceid = $dbservice->id;
$newf->functionname = $fname;
$DB->insert_record('external_services_functions', $newf);
}
unset($functions);
}
foreach ($services as $name => $service) {
//check that shortname is unique
if (isset($service['shortname'])) { //we currently accepts multiple shortname == null
$existingservice = $DB->get_record('external_services',
array('shortname' => $service['shortname']));
if (!empty($existingservice)) {
throw new moodle_exception('installserviceshortnameerror', 'webservice');
}
}
$dbservice = new stdClass();
$dbservice->name = $name;
$dbservice->enabled = empty($service['enabled']) ? 0 : $service['enabled'];
$dbservice->requiredcapability = empty($service['requiredcapability']) ? null : $service['requiredcapability'];
$dbservice->restrictedusers = !isset($service['restrictedusers']) ? 1 : $service['restrictedusers'];
$dbservice->downloadfiles = !isset($service['downloadfiles']) ? 0 : $service['downloadfiles'];
$dbservice->uploadfiles = !isset($service['uploadfiles']) ? 0 : $service['uploadfiles'];
$dbservice->shortname = !isset($service['shortname']) ? null : $service['shortname'];
$dbservice->component = $component;
$dbservice->timecreated = time();
$dbservice->id = $DB->insert_record('external_services', $dbservice);
foreach ($service['functions'] as $fname) {
$newf = new stdClass();
$newf->externalserviceid = $dbservice->id;
$newf->functionname = $fname;
$DB->insert_record('external_services_functions', $newf);
}
}
}
/**
* Allow plugins and subsystems to add external functions to other plugins or built-in services.
* This function is executed just after all the plugins have been updated.
*/
function external_update_services() {
global $DB;
// Look for external functions that want to be added in existing services.
$functions = $DB->get_records_select('external_functions', 'services IS NOT NULL');
$servicescache = array();
foreach ($functions as $function) {
// Prevent edge cases.
if (empty($function->services)) {
continue;
}
$services = explode(',', $function->services);
foreach ($services as $serviceshortname) {
// Get the service id by shortname.
if (!empty($servicescache[$serviceshortname])) {
$serviceid = $servicescache[$serviceshortname];
} else if ($service = $DB->get_record('external_services', array('shortname' => $serviceshortname))) {
// If the component is empty, it means that is not a built-in service.
// We don't allow functions to inject themselves in services created by an user in Moodle.
if (empty($service->component)) {
continue;
}
$serviceid = $service->id;
$servicescache[$serviceshortname] = $serviceid;
} else {
// Service not found.
continue;
}
// Finally add the function to the service.
$newf = new stdClass();
$newf->externalserviceid = $serviceid;
$newf->functionname = $function->name;
if (!$DB->record_exists('external_services_functions', (array)$newf)) {
$DB->insert_record('external_services_functions', $newf);
}
}
}
}
/**
* upgrade logging functions
*/
function upgrade_handle_exception($ex, $plugin = null) {
global $CFG;
// rollback everything, we need to log all upgrade problems
abort_all_db_transactions();
$info = get_exception_info($ex);
// First log upgrade error
upgrade_log(UPGRADE_LOG_ERROR, $plugin, 'Exception: ' . get_class($ex), $info->message, $info->backtrace);
// Always turn on debugging - admins need to know what is going on
set_debugging(DEBUG_DEVELOPER, true);
default_exception_handler($ex, true, $plugin);
}
/**
* Adds log entry into upgrade_log table
*
* @param int $type UPGRADE_LOG_NORMAL, UPGRADE_LOG_NOTICE or UPGRADE_LOG_ERROR
* @param string $plugin frankenstyle component name
* @param string $info short description text of log entry
* @param string $details long problem description
* @param string $backtrace string used for errors only
* @return void
*/
function upgrade_log($type, $plugin, $info, $details=null, $backtrace=null) {
global $DB, $USER, $CFG;
if (empty($plugin)) {
$plugin = 'core';
}
list($plugintype, $pluginname) = core_component::normalize_component($plugin);
$component = is_null($pluginname) ? $plugintype : $plugintype . '_' . $pluginname;
$backtrace = format_backtrace($backtrace, true);
$currentversion = null;
$targetversion = null;
//first try to find out current version number
if ($plugintype === 'core') {
//main
$currentversion = $CFG->version;
$version = null;
include("$CFG->dirroot/version.php");
$targetversion = $version;
} else {
$pluginversion = get_config($component, 'version');
if (!empty($pluginversion)) {
$currentversion = $pluginversion;
}
$cd = core_component::get_component_directory($component);
if (file_exists("$cd/version.php")) {
$plugin = new stdClass();
$plugin->version = null;
$module = $plugin;
include("$cd/version.php");
$targetversion = $plugin->version;
}
}
$log = new stdClass();
$log->type = $type;
$log->plugin = $component;
$log->version = $currentversion;
$log->targetversion = $targetversion;
$log->info = $info;
$log->details = $details;
$log->backtrace = $backtrace;
$log->userid = $USER->id;
$log->timemodified = time();
try {
$DB->insert_record('upgrade_log', $log);
} catch (Exception $ignored) {
// possible during install or 2.0 upgrade
}
}
/**
* Marks start of upgrade, blocks any other access to site.
* The upgrade is finished at the end of script or after timeout.
*
* @global object
* @global object
* @global object
*/
function upgrade_started($preinstall=false) {
global $CFG, $DB, $PAGE, $OUTPUT;
static $started = false;
if ($preinstall) {
ignore_user_abort(true);
upgrade_setup_debug(true);
} else if ($started) {
upgrade_set_timeout(120);
} else {
if (!CLI_SCRIPT and !$PAGE->headerprinted) {
$strupgrade = get_string('upgradingversion', 'admin');
$PAGE->set_pagelayout('maintenance');
upgrade_init_javascript();
$PAGE->set_title($strupgrade.' - Moodle '.$CFG->target_release);
$PAGE->set_heading($strupgrade);
$PAGE->navbar->add($strupgrade);
$PAGE->set_cacheable(false);
echo $OUTPUT->header();
}
ignore_user_abort(true);
core_shutdown_manager::register_function('upgrade_finished_handler');
upgrade_setup_debug(true);
set_config('upgraderunning', time()+300);
$started = true;
}
}
/**
* Internal function - executed if upgrade interrupted.
*/
function upgrade_finished_handler() {
upgrade_finished();
}
/**
* Indicates upgrade is finished.
*
* This function may be called repeatedly.
*
* @global object
* @global object
*/
function upgrade_finished($continueurl=null) {
global $CFG, $DB, $OUTPUT;
if (!empty($CFG->upgraderunning)) {
unset_config('upgraderunning');
// We have to forcefully purge the caches using the writer here.
// This has to be done after we unset the config var. If someone hits the site while this is set they will
// cause the config values to propogate to the caches.
// Caches are purged after the last step in an upgrade but there is several code routines that exceute between
// then and now that leaving a window for things to fall out of sync.
cache_helper::purge_all(true);
upgrade_setup_debug(false);
ignore_user_abort(false);
if ($continueurl) {
echo $OUTPUT->continue_button($continueurl);
echo $OUTPUT->footer();
die;
}
}
}
/**
* @global object
* @global object
*/
function upgrade_setup_debug($starting) {
global $CFG, $DB;
static $originaldebug = null;
if ($starting) {
if ($originaldebug === null) {
$originaldebug = $DB->get_debug();
}
if (!empty($CFG->upgradeshowsql)) {
$DB->set_debug(true);
}
} else {
$DB->set_debug($originaldebug);
}
}
function print_upgrade_separator() {
if (!CLI_SCRIPT) {
echo '<hr />';
}
}
/**
* Default start upgrade callback
* @param string $plugin
* @param bool $installation true if installation, false means upgrade
*/
function print_upgrade_part_start($plugin, $installation, $verbose) {
global $OUTPUT;
if (empty($plugin) or $plugin == 'moodle') {
upgrade_started($installation); // does not store upgrade running flag yet
if ($verbose) {
echo $OUTPUT->heading(get_string('coresystem'));
}
} else {
upgrade_started();
if ($verbose) {
echo $OUTPUT->heading($plugin);
}
}
if ($installation) {
if (empty($plugin) or $plugin == 'moodle') {
// no need to log - log table not yet there ;-)
} else {
upgrade_log(UPGRADE_LOG_NORMAL, $plugin, 'Starting plugin installation');
}
} else {
core_upgrade_time::record_start();
if (empty($plugin) or $plugin == 'moodle') {
upgrade_log(UPGRADE_LOG_NORMAL, $plugin, 'Starting core upgrade');
} else {
upgrade_log(UPGRADE_LOG_NORMAL, $plugin, 'Starting plugin upgrade');
}
}
}
/**
* Default end upgrade callback
* @param string $plugin
* @param bool $installation true if installation, false means upgrade
*/
function print_upgrade_part_end($plugin, $installation, $verbose) {
global $OUTPUT;
upgrade_started();
if ($installation) {
if (empty($plugin) or $plugin == 'moodle') {
upgrade_log(UPGRADE_LOG_NORMAL, $plugin, 'Core installed');
} else {
upgrade_log(UPGRADE_LOG_NORMAL, $plugin, 'Plugin installed');
}
} else {
if (empty($plugin) or $plugin == 'moodle') {
upgrade_log(UPGRADE_LOG_NORMAL, $plugin, 'Core upgraded');
} else {
upgrade_log(UPGRADE_LOG_NORMAL, $plugin, 'Plugin upgraded');
}
}
if ($verbose) {
if ($installation) {
$message = get_string('success');
} else {
$duration = core_upgrade_time::get_elapsed();
$message = get_string('successduration', '', format_float($duration, 2));
}
$notification = new \core\output\notification($message, \core\output\notification::NOTIFY_SUCCESS);
$notification->set_show_closebutton(false);
echo $OUTPUT->render($notification);
print_upgrade_separator();
}
}
/**
* Sets up JS code required for all upgrade scripts.
* @global object
*/
function upgrade_init_javascript() {
global $PAGE;
// scroll to the end of each upgrade page so that ppl see either error or continue button,
// no need to scroll continuously any more, it is enough to jump to end once the footer is printed ;-)
$js = "window.scrollTo(0, 5000000);";
$PAGE->requires->js_init_code($js);
}
/**
* Try to upgrade the given language pack (or current language)
*
* @param string $lang the code of the language to update, defaults to the current language
*/
function upgrade_language_pack($lang = null) {
global $CFG;
if (!empty($CFG->skiplangupgrade)) {
return;
}
if (!file_exists("$CFG->dirroot/$CFG->admin/tool/langimport/lib.php")) {
// weird, somebody uninstalled the import utility
return;
}
if (!$lang) {
$lang = current_language();
}
if (!get_string_manager()->translation_exists($lang)) {
return;
}
get_string_manager()->reset_caches();
if ($lang === 'en') {
return; // Nothing to do
}
upgrade_started(false);
require_once("$CFG->dirroot/$CFG->admin/tool/langimport/lib.php");
tool_langimport_preupgrade_update($lang);
get_string_manager()->reset_caches();
print_upgrade_separator();
}
/**
* Build the current theme so that the user doesn't have to wait for it
* to build on the first page load after the install / upgrade.
*/
function upgrade_themes() {
global $CFG;
require_once("{$CFG->libdir}/outputlib.php");
// Build the current theme so that the user can immediately
// browse the site without having to wait for the theme to build.
$themeconfig = theme_config::load($CFG->theme);
$direction = right_to_left() ? 'rtl' : 'ltr';
theme_build_css_for_themes([$themeconfig], [$direction]);
// Only queue the task if there isn't already one queued.
if (empty(\core\task\manager::get_adhoc_tasks('\\core\\task\\build_installed_themes_task'))) {
// Queue a task to build all of the site themes at some point
// later. These can happen offline because it doesn't block the
// user unless they quickly change theme.
$adhoctask = new \core\task\build_installed_themes_task();
\core\task\manager::queue_adhoc_task($adhoctask);
}
}
/**
* Install core moodle tables and initialize
* @param float $version target version
* @param bool $verbose
* @return void, may throw exception
*/
function install_core($version, $verbose) {
global $CFG, $DB;
// We can not call purge_all_caches() yet, make sure the temp and cache dirs exist and are empty.
remove_dir($CFG->cachedir.'', true);
make_cache_directory('', true);
remove_dir($CFG->localcachedir.'', true);
make_localcache_directory('', true);
remove_dir($CFG->tempdir.'', true);
make_temp_directory('', true);
remove_dir($CFG->backuptempdir.'', true);
make_backup_temp_directory('', true);
remove_dir($CFG->dataroot.'/muc', true);
make_writable_directory($CFG->dataroot.'/muc', true);
try {
core_php_time_limit::raise(600);
print_upgrade_part_start('moodle', true, $verbose); // does not store upgrade running flag
$DB->get_manager()->install_from_xmldb_file("$CFG->libdir/db/install.xml");
upgrade_started(); // we want the flag to be stored in config table ;-)
// set all core default records and default settings
require_once("$CFG->libdir/db/install.php");
xmldb_main_install(); // installs the capabilities too
// store version
upgrade_main_savepoint(true, $version, false);
// Continue with the installation
log_update_descriptions('moodle');
external_update_descriptions('moodle');
\core\task\manager::reset_scheduled_tasks_for_component('moodle');
\core_analytics\manager::update_default_models_for_component('moodle');
message_update_providers('moodle');
\core\message\inbound\manager::update_handlers_for_component('moodle');
core_tag_area::reset_definitions_for_component('moodle');
// Write default settings unconditionally
admin_apply_default_settings(NULL, true);
print_upgrade_part_end(null, true, $verbose);
// Purge all caches. They're disabled but this ensures that we don't have any persistent data just in case something
// during installation didn't use APIs.
cache_helper::purge_all();
} catch (exception $ex) {
upgrade_handle_exception($ex);
} catch (Throwable $ex) {
// Engine errors in PHP7 throw exceptions of type Throwable (this "catch" will be ignored in PHP5).
upgrade_handle_exception($ex);
}
}
/**
* Upgrade moodle core
* @param float $version target version
* @param bool $verbose
* @return void, may throw exception
*/
function upgrade_core($version, $verbose) {
global $CFG, $SITE, $DB, $COURSE;
raise_memory_limit(MEMORY_EXTRA);
require_once($CFG->libdir.'/db/upgrade.php'); // Defines upgrades
try {
// Reset caches before any output.
cache_helper::purge_all(true);
purge_all_caches();
// Upgrade current language pack if we can
upgrade_language_pack();
print_upgrade_part_start('moodle', false, $verbose);
// Pre-upgrade scripts for local hack workarounds.
$preupgradefile = "$CFG->dirroot/local/preupgrade.php";
if (file_exists($preupgradefile)) {
core_php_time_limit::raise();
require($preupgradefile);
// Reset upgrade timeout to default.
upgrade_set_timeout();
}
$result = xmldb_main_upgrade($CFG->version);
if ($version > $CFG->version) {
// store version if not already there
upgrade_main_savepoint($result, $version, false);
}
// In case structure of 'course' table has been changed and we forgot to update $SITE, re-read it from db.
$SITE = $DB->get_record('course', array('id' => $SITE->id));
$COURSE = clone($SITE);
// perform all other component upgrade routines
update_capabilities('moodle');
log_update_descriptions('moodle');
external_update_descriptions('moodle');
\core\task\manager::reset_scheduled_tasks_for_component('moodle');
\core_analytics\manager::update_default_models_for_component('moodle');
message_update_providers('moodle');
\core\message\inbound\manager::update_handlers_for_component('moodle');
core_tag_area::reset_definitions_for_component('moodle');
// Update core definitions.
cache_helper::update_definitions(true);
// Purge caches again, just to be sure we arn't holding onto old stuff now.
cache_helper::purge_all(true);
purge_all_caches();
// Clean up contexts - more and more stuff depends on existence of paths and contexts
context_helper::cleanup_instances();
context_helper::create_instances(null, false);
context_helper::build_all_paths(false);
$syscontext = context_system::instance();
$syscontext->mark_dirty();
print_upgrade_part_end('moodle', false, $verbose);
} catch (Exception $ex) {
upgrade_handle_exception($ex);
} catch (Throwable $ex) {
// Engine errors in PHP7 throw exceptions of type Throwable (this "catch" will be ignored in PHP5).
upgrade_handle_exception($ex);
}
}
/**
* Upgrade/install other parts of moodle
* @param bool $verbose
* @return void, may throw exception
*/
function upgrade_noncore($verbose) {
global $CFG;
raise_memory_limit(MEMORY_EXTRA);
// upgrade all plugins types
try {
// Reset caches before any output.
cache_helper::purge_all(true);
purge_all_caches();
$plugintypes = core_component::get_plugin_types();
foreach ($plugintypes as $type=>$location) {
upgrade_plugins($type, 'print_upgrade_part_start', 'print_upgrade_part_end', $verbose);
}
// Upgrade services.
// This function gives plugins and subsystems a chance to add functions to existing built-in services.
external_update_services();
// Update cache definitions. Involves scanning each plugin for any changes.
cache_helper::update_definitions();
// Mark the site as upgraded.
set_config('allversionshash', core_component::get_all_versions_hash());
// Purge caches again, just to be sure we arn't holding onto old stuff now.
cache_helper::purge_all(true);
purge_all_caches();
} catch (Exception $ex) {
upgrade_handle_exception($ex);
} catch (Throwable $ex) {
// Engine errors in PHP7 throw exceptions of type Throwable (this "catch" will be ignored in PHP5).
upgrade_handle_exception($ex);
}
}
/**
* Checks if the main tables have been installed yet or not.
*
* Note: we can not use caches here because they might be stale,
* use with care!
*
* @return bool
*/
function core_tables_exist() {
global $DB;
if (!$tables = $DB->get_tables(false) ) { // No tables yet at all.
return false;
} else { // Check for missing main tables
$mtables = array('config', 'course', 'groupings'); // some tables used in 1.9 and 2.0, preferable something from the start and end of install.xml
foreach ($mtables as $mtable) {
if (!in_array($mtable, $tables)) {
return false;
}
}
return true;
}
}
/**
* upgrades the mnet rpc definitions for the given component.
* this method doesn't return status, an exception will be thrown in the case of an error
*
* @param string $component the plugin to upgrade, eg auth_mnet
*/
function upgrade_plugin_mnet_functions($component) {
global $DB, $CFG;
list($type, $plugin) = core_component::normalize_component($component);
$path = core_component::get_plugin_directory($type, $plugin);
$publishes = array();
$subscribes = array();
if (file_exists($path . '/db/mnet.php')) {
require_once($path . '/db/mnet.php'); // $publishes comes from this file
}
if (empty($publishes)) {
$publishes = array(); // still need this to be able to disable stuff later
}
if (empty($subscribes)) {
$subscribes = array(); // still need this to be able to disable stuff later
}
static $servicecache = array();
// rekey an array based on the rpc method for easy lookups later
$publishmethodservices = array();
$subscribemethodservices = array();
foreach($publishes as $servicename => $service) {
if (is_array($service['methods'])) {
foreach($service['methods'] as $methodname) {
$service['servicename'] = $servicename;
$publishmethodservices[$methodname][] = $service;
}
}
}
// Disable functions that don't exist (any more) in the source
// Should these be deleted? What about their permissions records?
foreach ($DB->get_records('mnet_rpc', array('pluginname'=>$plugin, 'plugintype'=>$type), 'functionname ASC ') as $rpc) {
if (!array_key_exists($rpc->functionname, $publishmethodservices) && $rpc->enabled) {
$DB->set_field('mnet_rpc', 'enabled', 0, array('id' => $rpc->id));
} else if (array_key_exists($rpc->functionname, $publishmethodservices) && !$rpc->enabled) {
$DB->set_field('mnet_rpc', 'enabled', 1, array('id' => $rpc->id));
}
}
// reflect all the services we're publishing and save them
static $cachedclasses = array(); // to store reflection information in
foreach ($publishes as $service => $data) {
$f = $data['filename'];
$c = $data['classname'];
foreach ($data['methods'] as $method) {
$dataobject = new stdClass();
$dataobject->plugintype = $type;
$dataobject->pluginname = $plugin;
$dataobject->enabled = 1;
$dataobject->classname = $c;
$dataobject->filename = $f;
if (is_string($method)) {
$dataobject->functionname = $method;
} else if (is_array($method)) { // wants to override file or class
$dataobject->functionname = $method['method'];
$dataobject->classname = $method['classname'];
$dataobject->filename = $method['filename'];
}
$dataobject->xmlrpcpath = $type.'/'.$plugin.'/'.$dataobject->filename.'/'.$method;
$dataobject->static = false;
require_once($path . '/' . $dataobject->filename);
$functionreflect = null; // slightly different ways to get this depending on whether it's a class method or a function
if (!empty($dataobject->classname)) {
if (!class_exists($dataobject->classname)) {
throw new moodle_exception('installnosuchmethod', 'mnet', '', (object)array('method' => $dataobject->functionname, 'class' => $dataobject->classname));
}
$key = $dataobject->filename . '|' . $dataobject->classname;
if (!array_key_exists($key, $cachedclasses)) { // look to see if we've already got a reflection object
try {
$cachedclasses[$key] = new ReflectionClass($dataobject->classname);
} catch (ReflectionException $e) { // catch these and rethrow them to something more helpful
throw new moodle_exception('installreflectionclasserror', 'mnet', '', (object)array('method' => $dataobject->functionname, 'class' => $dataobject->classname, 'error' => $e->getMessage()));
}
}
$r =& $cachedclasses[$key];
if (!$r->hasMethod($dataobject->functionname)) {
throw new moodle_exception('installnosuchmethod', 'mnet', '', (object)array('method' => $dataobject->functionname, 'class' => $dataobject->classname));
}
$functionreflect = $r->getMethod($dataobject->functionname);
$dataobject->static = (int)$functionreflect->isStatic();
} else {
if (!function_exists($dataobject->functionname)) {
throw new moodle_exception('installnosuchfunction', 'mnet', '', (object)array('method' => $dataobject->functionname, 'file' => $dataobject->filename));
}
try {
$functionreflect = new ReflectionFunction($dataobject->functionname);
} catch (ReflectionException $e) { // catch these and rethrow them to something more helpful
throw new moodle_exception('installreflectionfunctionerror', 'mnet', '', (object)array('method' => $dataobject->functionname, '' => $dataobject->filename, 'error' => $e->getMessage()));
}
}
$dataobject->profile = serialize(admin_mnet_method_profile($functionreflect));
$dataobject->help = admin_mnet_method_get_help($functionreflect);
if ($record_exists = $DB->get_record('mnet_rpc', array('xmlrpcpath'=>$dataobject->xmlrpcpath))) {
$dataobject->id = $record_exists->id;
$dataobject->enabled = $record_exists->enabled;
$DB->update_record('mnet_rpc', $dataobject);
} else {
$dataobject->id = $DB->insert_record('mnet_rpc', $dataobject, true);
}
// TODO this API versioning must be reworked, here the recently processed method
// sets the service API which may not be correct
foreach ($publishmethodservices[$dataobject->functionname] as $service) {
if ($serviceobj = $DB->get_record('mnet_service', array('name'=>$service['servicename']))) {
$serviceobj->apiversion = $service['apiversion'];
$DB->update_record('mnet_service', $serviceobj);
} else {
$serviceobj = new stdClass();
$serviceobj->name = $service['servicename'];
$serviceobj->description = empty($service['description']) ? '' : $service['description'];
$serviceobj->apiversion = $service['apiversion'];
$serviceobj->offer = 1;
$serviceobj->id = $DB->insert_record('mnet_service', $serviceobj);
}
$servicecache[$service['servicename']] = $serviceobj;
if (!$DB->record_exists('mnet_service2rpc', array('rpcid'=>$dataobject->id, 'serviceid'=>$serviceobj->id))) {
$obj = new stdClass();
$obj->rpcid = $dataobject->id;
$obj->serviceid = $serviceobj->id;
$DB->insert_record('mnet_service2rpc', $obj, true);
}
}
}
}
// finished with methods we publish, now do subscribable methods
foreach($subscribes as $service => $methods) {
if (!array_key_exists($service, $servicecache)) {
if (!$serviceobj = $DB->get_record('mnet_service', array('name' => $service))) {
debugging("TODO: skipping unknown service $service - somebody needs to fix MDL-21993");
continue;
}
$servicecache[$service] = $serviceobj;
} else {
$serviceobj = $servicecache[$service];
}
foreach ($methods as $method => $xmlrpcpath) {
if (!$rpcid = $DB->get_field('mnet_remote_rpc', 'id', array('xmlrpcpath'=>$xmlrpcpath))) {
$remoterpc = (object)array(
'functionname' => $method,
'xmlrpcpath' => $xmlrpcpath,
'plugintype' => $type,
'pluginname' => $plugin,
'enabled' => 1,
);
$rpcid = $remoterpc->id = $DB->insert_record('mnet_remote_rpc', $remoterpc, true);
}
if (!$DB->record_exists('mnet_remote_service2rpc', array('rpcid'=>$rpcid, 'serviceid'=>$serviceobj->id))) {
$obj = new stdClass();
$obj->rpcid = $rpcid;
$obj->serviceid = $serviceobj->id;
$DB->insert_record('mnet_remote_service2rpc', $obj, true);
}
$subscribemethodservices[$method][] = $service;
}
}
foreach ($DB->get_records('mnet_remote_rpc', array('pluginname'=>$plugin, 'plugintype'=>$type), 'functionname ASC ') as $rpc) {
if (!array_key_exists($rpc->functionname, $subscribemethodservices) && $rpc->enabled) {
$DB->set_field('mnet_remote_rpc', 'enabled', 0, array('id' => $rpc->id));
} else if (array_key_exists($rpc->functionname, $subscribemethodservices) && !$rpc->enabled) {
$DB->set_field('mnet_remote_rpc', 'enabled', 1, array('id' => $rpc->id));
}
}
return true;
}
/**
* Given some sort of reflection function/method object, return a profile array, ready to be serialized and stored
*
* @param ReflectionFunctionAbstract $function reflection function/method object from which to extract information
*
* @return array associative array with function/method information
*/
function admin_mnet_method_profile(ReflectionFunctionAbstract $function) {
$commentlines = admin_mnet_method_get_docblock($function);
$getkey = function($key) use ($commentlines) {
return array_values(array_filter($commentlines, function($line) use ($key) {
return $line[0] == $key;
}));
};
$returnline = $getkey('@return');
return array (
'parameters' => array_map(function($line) {
return array(
'name' => trim($line[2], " \t\n\r\0\x0B$"),
'type' => $line[1],
'description' => $line[3]
);
}, $getkey('@param')),
'return' => array(
'type' => !empty($returnline[0][1]) ? $returnline[0][1] : 'void',
'description' => !empty($returnline[0][2]) ? $returnline[0][2] : ''
)
);
}
/**
* Given some sort of reflection function/method object, return an array of docblock lines, where each line is an array of
* keywords/descriptions
*
* @param ReflectionFunctionAbstract $function reflection function/method object from which to extract information
*
* @return array docblock converted in to an array
*/
function admin_mnet_method_get_docblock(ReflectionFunctionAbstract $function) {
return array_map(function($line) {
$text = trim($line, " \t\n\r\0\x0B*/");
if (strpos($text, '@param') === 0) {
return preg_split('/\s+/', $text, 4);
}
if (strpos($text, '@return') === 0) {
return preg_split('/\s+/', $text, 3);
}
return array($text);
}, explode("\n", $function->getDocComment()));
}
/**
* Given some sort of reflection function/method object, return just the help text
*
* @param ReflectionFunctionAbstract $function reflection function/method object from which to extract information
*
* @return string docblock help text
*/
function admin_mnet_method_get_help(ReflectionFunctionAbstract $function) {
$helplines = array_map(function($line) {
return implode(' ', $line);
}, array_values(array_filter(admin_mnet_method_get_docblock($function), function($line) {
return strpos($line[0], '@') !== 0 && !empty($line[0]);
})));
return implode("\n", $helplines);
}
/**
* This function verifies that the database is not using an unsupported storage engine.
*
* @param environment_results $result object to update, if relevant
* @return environment_results|null updated results object, or null if the storage engine is supported
*/
function check_database_storage_engine(environment_results $result) {
global $DB;
// Check if MySQL is the DB family (this will also be the same for MariaDB).
if ($DB->get_dbfamily() == 'mysql') {
// Get the database engine we will either be using to install the tables, or what we are currently using.
$engine = $DB->get_dbengine();
// Check if MyISAM is the storage engine that will be used, if so, do not proceed and display an error.
if ($engine == 'MyISAM') {
$result->setInfo('unsupported_db_storage_engine');
$result->setStatus(false);
return $result;
}
}
return null;
}
/**
* Method used to check the usage of slasharguments config and display a warning message.
*
* @param environment_results $result object to update, if relevant.
* @return environment_results|null updated results or null if slasharguments is disabled.
*/
function check_slasharguments(environment_results $result){
global $CFG;
if (!during_initial_install() && empty($CFG->slasharguments)) {
$result->setInfo('slasharguments');
$result->setStatus(false);
return $result;
}
return null;
}
/**
* This function verifies if the database has tables using innoDB Antelope row format.
*
* @param environment_results $result
* @return environment_results|null updated results object, or null if no Antelope table has been found.
*/
function check_database_tables_row_format(environment_results $result) {
global $DB;
if ($DB->get_dbfamily() == 'mysql') {
$generator = $DB->get_manager()->generator;
foreach ($DB->get_tables(false) as $table) {
$columns = $DB->get_columns($table, false);
$size = $generator->guess_antelope_row_size($columns);
$format = $DB->get_row_format($table);
if ($size <= $generator::ANTELOPE_MAX_ROW_SIZE) {
continue;
}
if ($format === 'Compact' or $format === 'Redundant') {
$result->setInfo('unsupported_db_table_row_format');
$result->setStatus(false);
return $result;
}
}
}
return null;
}
/**
* This function verfies that the database has tables using InnoDB Antelope row format.
*
* @param environment_results $result
* @return environment_results|null updated results object, or null if no Antelope table has been found.
*/
function check_mysql_file_format(environment_results $result) {
global $DB;
if ($DB->get_dbfamily() == 'mysql') {
$collation = $DB->get_dbcollation();
$collationinfo = explode('_', $collation);
$charset = reset($collationinfo);
if ($charset == 'utf8mb4') {
if ($DB->get_row_format() !== "Barracuda") {
$result->setInfo('mysql_full_unicode_support#File_format');
$result->setStatus(false);
return $result;
}
}
}
return null;
}
/**
* This function verfies that the database has a setting of one file per table. This is required for 'utf8mb4'.
*
* @param environment_results $result
* @return environment_results|null updated results object, or null if innodb_file_per_table = 1.
*/
function check_mysql_file_per_table(environment_results $result) {
global $DB;
if ($DB->get_dbfamily() == 'mysql') {
$collation = $DB->get_dbcollation();
$collationinfo = explode('_', $collation);
$charset = reset($collationinfo);
if ($charset == 'utf8mb4') {
if (!$DB->is_file_per_table_enabled()) {
$result->setInfo('mysql_full_unicode_support#File_per_table');
$result->setStatus(false);
return $result;
}
}
}
return null;
}
/**
* This function verfies that the database has the setting of large prefix enabled. This is required for 'utf8mb4'.
*
* @param environment_results $result
* @return environment_results|null updated results object, or null if innodb_large_prefix = 1.
*/
function check_mysql_large_prefix(environment_results $result) {
global $DB;
if ($DB->get_dbfamily() == 'mysql') {
$collation = $DB->get_dbcollation();
$collationinfo = explode('_', $collation);
$charset = reset($collationinfo);
if ($charset == 'utf8mb4') {
if (!$DB->is_large_prefix_enabled()) {
$result->setInfo('mysql_full_unicode_support#Large_prefix');
$result->setStatus(false);
return $result;
}
}
}
return null;
}
/**
* This function checks the database to see if it is using incomplete unicode support.
*
* @param environment_results $result $result
* @return environment_results|null updated results object, or null if unicode is fully supported.
*/
function check_mysql_incomplete_unicode_support(environment_results $result) {
global $DB;
if ($DB->get_dbfamily() == 'mysql') {
$collation = $DB->get_dbcollation();
$collationinfo = explode('_', $collation);
$charset = reset($collationinfo);
if ($charset == 'utf8') {
$result->setInfo('mysql_full_unicode_support');
$result->setStatus(false);
return $result;
}
}
return null;
}
/**
* Check if the site is being served using an ssl url.
*
* Note this does not really perform any request neither looks for proxies or
* other situations. Just looks to wwwroot and warn if it's not using https.
*
* @param environment_results $result $result
* @return environment_results|null updated results object, or null if the site is https.
*/
function check_is_https(environment_results $result) {
global $CFG;
// Only if is defined, non-empty and whatever core tell us.
if (!empty($CFG->wwwroot) && !is_https()) {
$result->setInfo('site not https');
$result->setStatus(false);
return $result;
}
return null;
}
/**
* Check if the site is using 64 bits PHP.
*
* @param environment_results $result
* @return environment_results|null updated results object, or null if the site is using 64 bits PHP.
*/
function check_sixtyfour_bits(environment_results $result) {
if (PHP_INT_SIZE === 4) {
$result->setInfo('php not 64 bits');
$result->setStatus(false);
return $result;
}
return null;
}
/**
* Check if the igbinary extension installed is buggy one
*
* There are a few php-igbinary versions that are buggy and
* return any unserialised array with wrong index. This defeats
* key() and next() operations on them.
*
* This library is used by MUC and also by memcached and redis
* when available.
*
* Let's inform if there is some problem when:
* - php 7.2 is being used (php 7.3 and up are immune).
* - the igbinary extension is installed.
* - the version of the extension is between 3.2.2 and 3.2.4.
* - the buggy behaviour is reproduced.
*
* @param environment_results $result object to update, if relevant.
* @return environment_results|null updated results or null.
*/
function check_igbinary322_version(environment_results $result) {
// No problem if using PHP version 7.3 and up.
$phpversion = normalize_version(phpversion());
if (version_compare($phpversion, '7.3', '>=')) {
return null;
}
// No problem if igbinary is not installed..
if (!function_exists('igbinary_serialize')) {
return null;
}
// No problem if using igbinary < 3.2.2 or > 3.2.4.
$igbinaryversion = normalize_version(phpversion('igbinary'));
if (version_compare($igbinaryversion, '3.2.2', '<') or version_compare($igbinaryversion, '3.2.4', '>')) {
return null;
}
// Let's verify the real behaviour to see if the bug is around.
// Note that we need this extra check because they released 3.2.5 with 3.2.4 version number, so
// over the paper, there are 3.2.4 working versions (3.2.5 ones with messed reflection version).
$data = [1, 2, 3];
$data = igbinary_unserialize(igbinary_serialize($data));
if (key($data) === 0) {
return null;
}
// Arrived here, we are using PHP 7.2 and a buggy verified igbinary version, let's inform and don't allow to continue.
$result->setInfo('igbinary version problem');
$result->setStatus(false);
return $result;
}
/**
* Assert the upgrade key is provided, if it is defined.
*
* The upgrade key can be defined in the main config.php as $CFG->upgradekey. If
* it is defined there, then its value must be provided every time the site is
* being upgraded, regardless the administrator is logged in or not.
*
* This is supposed to be used at certain places in /admin/index.php only.
*
* @param string|null $upgradekeyhash the SHA-1 of the value provided by the user
*/
function check_upgrade_key($upgradekeyhash) {
global $CFG, $PAGE;
if (isset($CFG->config_php_settings['upgradekey'])) {
if ($upgradekeyhash === null or $upgradekeyhash !== sha1($CFG->config_php_settings['upgradekey'])) {
if (!$PAGE->headerprinted) {
$PAGE->set_title(get_string('upgradekeyreq', 'admin'));
$output = $PAGE->get_renderer('core', 'admin');
echo $output->upgradekey_form_page(new moodle_url('/admin/index.php', array('cache' => 0)));
die();
} else {
// This should not happen.
die('Upgrade locked');
}
}
}
}
/**
* Helper procedure/macro for installing remote plugins at admin/index.php
*
* Does not return, always redirects or exits.
*
* @param array $installable list of \core\update\remote_info
* @param bool $confirmed false: display the validation screen, true: proceed installation
* @param string $heading validation screen heading
* @param moodle_url|string|null $continue URL to proceed with installation at the validation screen
* @param moodle_url|string|null $return URL to go back on cancelling at the validation screen
*/
function upgrade_install_plugins(array $installable, $confirmed, $heading='', $continue=null, $return=null) {
global $CFG, $PAGE;
if (empty($return)) {
$return = $PAGE->url;
}
if (!empty($CFG->disableupdateautodeploy)) {
redirect($return);
}
if (empty($installable)) {
redirect($return);
}
$pluginman = core_plugin_manager::instance();
if ($confirmed) {
// Installation confirmed at the validation results page.
if (!$pluginman->install_plugins($installable, true, true)) {
throw new moodle_exception('install_plugins_failed', 'core_plugin', $return);
}
// Always redirect to admin/index.php to perform the database upgrade.
// Do not throw away the existing $PAGE->url parameters such as
// confirmupgrade or confirmrelease if $PAGE->url is a superset of the
// URL we must go to.
$mustgoto = new moodle_url('/admin/index.php', array('cache' => 0, 'confirmplugincheck' => 0));
if ($mustgoto->compare($PAGE->url, URL_MATCH_PARAMS)) {
redirect($PAGE->url);
} else {
redirect($mustgoto);
}
} else {
$output = $PAGE->get_renderer('core', 'admin');
echo $output->header();
if ($heading) {
echo $output->heading($heading, 3);
}
echo html_writer::start_tag('pre', array('class' => 'plugin-install-console'));
$validated = $pluginman->install_plugins($installable, false, false);
echo html_writer::end_tag('pre');
if ($validated) {
echo $output->plugins_management_confirm_buttons($continue, $return);
} else {
echo $output->plugins_management_confirm_buttons(null, $return);
}
echo $output->footer();
die();
}
}
/**
* Method used to check the installed unoconv version.
*
* @param environment_results $result object to update, if relevant.
* @return environment_results|null updated results or null if unoconv path is not executable.
*/
function check_unoconv_version(environment_results $result) {
global $CFG;
if (!during_initial_install() && !empty($CFG->pathtounoconv) && file_is_executable(trim($CFG->pathtounoconv))) {
$currentversion = 0;
$supportedversion = 0.7;
$unoconvbin = \escapeshellarg($CFG->pathtounoconv);
$command = "$unoconvbin --version";
exec($command, $output);
// If the command execution returned some output, then get the unoconv version.
if ($output) {
foreach ($output as $response) {
if (preg_match('/unoconv (\\d+\\.\\d+)/', $response, $matches)) {
$currentversion = (float)$matches[1];
}
}
}
if ($currentversion < $supportedversion) {
$result->setInfo('unoconv version not supported');
$result->setStatus(false);
return $result;
}
}
return null;
}
/**
* Checks for up-to-date TLS libraries. NOTE: this is not currently used, see MDL-57262.
*
* @param environment_results $result object to update, if relevant.
* @return environment_results|null updated results or null if unoconv path is not executable.
*/
function check_tls_libraries(environment_results $result) {
global $CFG;
if (!function_exists('curl_version')) {
$result->setInfo('cURL PHP extension is not installed');
$result->setStatus(false);
return $result;
}
if (!\core\upgrade\util::validate_php_curl_tls(curl_version(), PHP_ZTS)) {
$result->setInfo('invalid ssl/tls configuration');
$result->setStatus(false);
return $result;
}
if (!\core\upgrade\util::can_use_tls12(curl_version(), php_uname('r'))) {
$result->setInfo('ssl/tls configuration not supported');
$result->setStatus(false);
return $result;
}
return null;
}
/**
* Check if recommended version of libcurl is installed or not.
*
* @param environment_results $result object to update, if relevant.
* @return environment_results|null updated results or null.
*/
function check_libcurl_version(environment_results $result) {
if (!function_exists('curl_version')) {
$result->setInfo('cURL PHP extension is not installed');
$result->setStatus(false);
return $result;
}
// Supported version and version number.
$supportedversion = 0x071304;
$supportedversionstring = "7.19.4";
// Installed version.
$curlinfo = curl_version();
$currentversion = $curlinfo['version_number'];
if ($currentversion < $supportedversion) {
// Test fail.
// Set info, we want to let user know how to resolve the problem.
$result->setInfo('Libcurl version check');
$result->setNeededVersion($supportedversionstring);
$result->setCurrentVersion($curlinfo['version']);
$result->setStatus(false);
return $result;
}
return null;
}
/**
* Environment check for the php setting max_input_vars
*
* @param environment_results $result
* @return environment_results|null
*/
function check_max_input_vars(environment_results $result) {
$max = (int)ini_get('max_input_vars');
if ($max < 5000) {
$result->setInfo('max_input_vars');
$result->setStatus(false);
if (PHP_VERSION_ID >= 80000) {
// For PHP8 this check is required.
$result->setLevel('required');
$result->setFeedbackStr('settingmaxinputvarsrequired');
} else {
// For PHP7 this check is optional (recommended).
$result->setFeedbackStr('settingmaxinputvars');
}
return $result;
}
return null;
}
/**
* Check whether the admin directory has been configured and warn if so.
*
* The admin directory has been deprecated since Moodle 4.0.
*
* @param environment_results $result
* @return null|environment_results
*/
function check_admin_dir_usage(environment_results $result): ?environment_results {
global $CFG;
if (empty($CFG->admin)) {
return null;
}
if ($CFG->admin === 'admin') {
return null;
}
$result->setInfo('admin_dir_usage');
$result->setStatus(false);
return $result;
}
/**
* Check whether the XML-RPC protocol is enabled and warn if so.
*
* The XML-RPC protocol will be removed in a future version (4.1) as it is no longer supported by PHP.
*
* See MDL-70889 for further information.
*
* @param environment_results $result
* @return null|environment_results
*/
function check_xmlrpc_usage(environment_results $result): ?environment_results {
global $CFG;
// Checking Web Service protocols.
if (!empty($CFG->webserviceprotocols)) {
$plugins = array_flip(explode(',', $CFG->webserviceprotocols));
if (array_key_exists('xmlrpc', $plugins)) {
$result->setInfo('xmlrpc_webservice_usage');
$result->setFeedbackStr('xmlrpcwebserviceenabled');
return $result;
}
}
if (isset($CFG->mnet_dispatcher_mode) && $CFG->mnet_dispatcher_mode == 'strict') {
// Checking Mnet hosts.
$mnethosts = mnet_get_hosts();
if ($mnethosts) {
$actualhost = 0;
foreach ($mnethosts as $mnethost) {
if ($mnethost->id != $CFG->mnet_all_hosts_id) {
$actualhost++;
}
}
if ($actualhost > 0) {
$result->setInfo('xmlrpc_mnet_usage');
$result->setFeedbackStr('xmlrpcmnetenabled');
return $result;
}
}
// Checking Mahara.
$portfolios = \core\plugininfo\portfolio::get_enabled_plugins();
if (array_key_exists('mahara', $portfolios)) {
$result->setInfo('xmlrpc_mahara_usage');
$result->setFeedbackStr('xmlrpcmaharaenabled');
return $result;
}
}
return null;
}