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See Release Notes
Long Term Support Release

  • Bug fixes for general core bugs in 4.1.x will end 13 November 2023 (12 months).
  • Bug fixes for security issues in 4.1.x will end 10 November 2025 (36 months).
  • PHP version: minimum PHP 7.4.0 Note: minimum PHP version has increased since Moodle 4.0. PHP 8.0.x is supported too.
<?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/>.

< /** < * H5P core class. < * < * @package core_h5p < * @copyright 2019 Sara Arjona <sara@moodle.com> < * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later < */ <
namespace core_h5p; defined('MOODLE_INTERNAL') || die(); require_once("$CFG->libdir/filelib.php"); use Moodle\H5PCore; use Moodle\H5PFrameworkInterface; use Moodle\H5PHubEndpoints; use stdClass; use moodle_url; use core_h5p\local\library\autoloader;
> // phpcs:disable moodle.NamingConventions.ValidFunctionName.LowercaseMethod /** > // phpcs:disable moodle.NamingConventions.ValidVariableName.VariableNameLowerCase * H5P core class, containing functions and storage shared by the other H5P classes. >
* * @package core_h5p * @copyright 2019 Sara Arjona <sara@moodle.com> * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later */ class core extends H5PCore { /** @var array The array containing all the present libraries */ protected $libraries; /** * Constructor for core_h5p/core. * * @param H5PFrameworkInterface $framework The frameworks implementation of the H5PFrameworkInterface * @param string|H5PFileStorage $path The H5P file storage directory or class * @param string $url The URL to the file storage directory * @param string $language The language code. Defaults to english * @param boolean $export Whether export is enabled */ public function __construct(H5PFrameworkInterface $framework, $path, string $url, string $language = 'en', bool $export = false) { parent::__construct($framework, $path, $url, $language, $export); // Aggregate the assets by default. $this->aggregateAssets = true; } /** * Get the path to the dependency. * * @param array $dependency An array containing the information of the requested dependency library * @return string The path to the dependency library */ protected function getDependencyPath(array $dependency): string { $library = $this->find_library($dependency);
< return "libraries/{$library->id}/{$library->machinename}-{$library->majorversion}.{$library->minorversion}";
> return "libraries/{$library->id}/" . H5PCore::libraryToFolderName($dependency);
} /** * Get the paths to the content dependencies. * * @param int $id The H5P content ID * @return array An array containing the path of each content dependency */ public function get_dependency_roots(int $id): array { $roots = []; $dependencies = $this->h5pF->loadContentDependencies($id); $context = \context_system::instance(); foreach ($dependencies as $dependency) { $library = $this->find_library($dependency);
< $roots[self::libraryToString($dependency, true)] = (moodle_url::make_pluginfile_url(
> $roots[self::libraryToFolderName($dependency)] = (moodle_url::make_pluginfile_url(
$context->id, 'core_h5p', 'libraries', $library->id,
< "/" . self::libraryToString($dependency, true),
> "/" . self::libraryToFolderName($dependency),
'' ))->out(false); } return $roots; } /** * Get a particular dependency library. * * @param array $dependency An array containing information of the dependency library * @return stdClass|null The library object if the library dependency exists, null otherwise */ protected function find_library(array $dependency): ?\stdClass { global $DB; if (null === $this->libraries) { $this->libraries = $DB->get_records('h5p_libraries'); } $major = $dependency['majorVersion']; $minor = $dependency['minorVersion']; $patch = $dependency['patchVersion']; foreach ($this->libraries as $library) { if ($library->machinename !== $dependency['machineName']) { continue; } if ($library->majorversion != $major) { continue; } if ($library->minorversion != $minor) { continue; } if ($library->patchversion != $patch) { continue; } return $library; } return null; } /** * Get the list of JS scripts to include on the page. * * @return array The array containg urls of the core JavaScript files */ public static function get_scripts(): array { global $PAGE; $jsrev = $PAGE->requires->get_jsrev(); $urls = []; foreach (self::$scripts as $script) { $urls[] = autoloader::get_h5p_core_library_url($script, [ 'ver' => $jsrev, ]); } $urls[] = new moodle_url("/h5p/js/h5p_overrides.js", [ 'ver' => $jsrev, ]); return $urls; } /** * Fetch and install the latest H5P content types libraries from the official H5P repository. * If the latest version of a content type library is present in the system, nothing is done for that content type. * * @return stdClass */ public function fetch_latest_content_types(): ?\stdClass { $contenttypes = $this->get_latest_content_types(); if (!empty($contenttypes->error)) { return $contenttypes; } $typesinstalled = []; $factory = new factory(); $framework = $factory->get_framework(); foreach ($contenttypes->contentTypes as $type) { // Don't fetch content types if any of the versions is disabled. $librarydata = (object) ['machinename' => $type->id]; if (!api::is_library_enabled($librarydata)) { continue; } // Don't fetch content types that require a higher H5P core API version. if (!$this->is_required_core_api($type->coreApiVersionNeeded)) { continue; } $library = [ 'machineName' => $type->id, 'majorVersion' => $type->version->major, 'minorVersion' => $type->version->minor, 'patchVersion' => $type->version->patch, ]; // Add example and tutorial to the library, to store this information too. if (isset($type->example)) { $library['example'] = $type->example; } if (isset($type->tutorial)) { $library['tutorial'] = $type->tutorial; } $shoulddownload = true; if ($framework->getLibraryId($type->id, $type->version->major, $type->version->minor)) { if (!$framework->isPatchedLibrary($library)) { $shoulddownload = false; } } if ($shoulddownload) { $installed['id'] = $this->fetch_content_type($library); if ($installed['id']) { $installed['name'] = H5PCore::libraryToString($library); $typesinstalled[] = $installed; } } } $result = new stdClass(); $result->error = ''; $result->typesinstalled = $typesinstalled; return $result; } /** * Given an H5P content type machine name, fetch and install the required library from the official H5P repository. * * @param array $library Library machineName, majorversion and minorversion. * @return int|null Returns the id of the content type library installed, null otherwise. */ public function fetch_content_type(array $library): ?int { global $DB; $factory = new factory(); $fs = get_file_storage(); // Delete any existing file, if it was not deleted during a previous download. $existing = $fs->get_file( (\context_system::instance())->id, 'core_h5p', 'library_sources', 0, '/', $library['machineName'] ); if ($existing) { $existing->delete(); } // Download the latest content type from the H5P official repository. $file = $fs->create_file_from_url( (object) [ 'component' => 'core_h5p', 'filearea' => 'library_sources', 'itemid' => 0, 'contextid' => (\context_system::instance())->id, 'filepath' => '/', 'filename' => $library['machineName'], ], $this->get_api_endpoint($library['machineName']), null, true ); if (!$file) { return null; } helper::save_h5p($factory, $file, (object) [], false, true); $file->delete(); $librarykey = static::libraryToString($library); $libraryjson = $factory->get_storage()->h5pC->librariesJsonData[$librarykey]; if (!array_key_exists('libraryId', $libraryjson)) { return null; } $libraryid = $libraryjson['libraryId']; // Update example and tutorial (if any of them are defined in $library). $params = ['id' => $libraryid]; if (array_key_exists('example', $library)) { $params['example'] = $library['example']; } if (array_key_exists('tutorial', $library)) { $params['tutorial'] = $library['tutorial']; } if (count($params) > 1) { $DB->update_record('h5p_libraries', $params); } return $libraryid; } /** * Get H5P endpoints. * * If $endpoint = 'content' and $library is null, moodle_url is the endpoint of the latest version of the H5P content * types; however, if $library is the machine name of a content type, moodle_url is the endpoint to download the content type. * The SITES endpoint ($endpoint = 'site') may be use to get a site UUID or send site data. * * @param string|null $library The machineName of the library whose endpoint is requested. * @param string $endpoint The endpoint required. Valid values: "site", "content". * @return moodle_url The endpoint moodle_url object. */ public function get_api_endpoint(?string $library = null, string $endpoint = 'content'): moodle_url { if ($endpoint == 'site') { $h5purl = H5PHubEndpoints::createURL(H5PHubEndpoints::SITES ); } else if ($endpoint == 'content') { $h5purl = H5PHubEndpoints::createURL(H5PHubEndpoints::CONTENT_TYPES ) . $library; } return new moodle_url($h5purl); } /** * Get the latest version of the H5P content types available in the official repository. * * @return stdClass An object with 2 properties: * - string error: error message when there is any problem, empty otherwise * - array contentTypes: an object for each H5P content type with its information */ public function get_latest_content_types(): \stdClass { global $CFG; $siteuuid = $this->get_site_uuid() ?? md5($CFG->wwwroot); $postdata = ['uuid' => $siteuuid]; // Get the latest content-types json. $endpoint = $this->get_api_endpoint(); $request = download_file_content($endpoint, null, $postdata, true); if (!empty($request->error) || $request->status != '200' || empty($request->results)) { if (empty($request->error)) { $request->error = get_string('fetchtypesfailure', 'core_h5p'); } return $request; } $contenttypes = json_decode($request->results); $contenttypes->error = ''; return $contenttypes; } /** * Get the site UUID. If site UUID is not defined, try to register the site. * * return $string The site UUID, null if it is not set. */ public function get_site_uuid(): ?string { // Check if the site_uuid is already set. $siteuuid = get_config('core_h5p', 'site_uuid'); if (!$siteuuid) { $siteuuid = $this->register_site(); } return $siteuuid; } /** * Get H5P generated site UUID. * * return ?string Returns H5P generated site UUID, null if can't get it. */ private function register_site(): ?string { $endpoint = $this->get_api_endpoint(null, 'site'); $siteuuid = download_file_content($endpoint, null, ''); // Successful UUID retrieval from H5P. if ($siteuuid) { $json = json_decode($siteuuid); if (isset($json->uuid)) { set_config('site_uuid', $json->uuid, 'core_h5p'); return $json->uuid; } } return null; } /** * Checks that the required H5P core API version or higher is installed. * * @param stdClass $coreapi Object with properties major and minor for the core API version required. * @return bool True if the required H5P core API version is installed. False if not. */ public function is_required_core_api($coreapi): bool { if (isset($coreapi) && !empty($coreapi)) { if (($coreapi->major > H5PCore::$coreApi['majorVersion']) || (($coreapi->major == H5PCore::$coreApi['majorVersion']) && ($coreapi->minor > H5PCore::$coreApi['minorVersion']))) { return false; } } return true; } /** * Get the library string from a DB library record. * * @param stdClass $record The DB library record. * @param bool $foldername If true, use hyphen instead of space in returned string. * @return string The string name on the form {machineName} {majorVersion}.{minorVersion}. */ public static function record_to_string(stdClass $record, bool $foldername = false): string {
> if ($foldername) { return static::libraryToString([ > return static::libraryToFolderName([ 'machineName' => $record->machinename, > 'machineName' => $record->machinename, 'majorVersion' => $record->majorversion, > 'majorVersion' => $record->majorversion, 'minorVersion' => $record->minorversion, > 'minorVersion' => $record->minorversion, ], $foldername); > ]); } > } else {
< ], $foldername);
> ]);
> > } > > /** > * Small helper for getting the library's ID. > * This method is rewritten to use MUC (instead of an static variable which causes some problems with PHPUnit). > * > * @param array $library > * @param string $libString > * @return int Identifier, or FALSE if non-existent > */ > public function getLibraryId($library, $libString = null) { > if (!$libString) { > $libString = self::libraryToString($library); > } > > // Check if this information has been saved previously into the cache. > $libcache = \cache::make('core', 'h5p_libraries'); > $librarykey = helper::get_cache_librarykey($libString); > $libraryId = $libcache->get($librarykey); > if ($libraryId === false) { > $libraryId = $this->h5pF->getLibraryId($library['machineName'], $library['majorVersion'], $library['minorVersion']); > $libcache->set($librarykey, $libraryId); > } > > return $libraryId; > } >