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+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
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+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program 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.
+
+    This program 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 this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.

README.md

@@ -0,0 +1,64 @@
+# H5P Moodle Plugin
+
+Create and add rich content inside your LMS for free. Some examples of what you
+get with H5P are Interactive Video, Quizzes, Collage and Timeline.
+
+## Usage
+
+If you intend to use the repository directly in production, make sure that you're using the "Stable" branch, as this is the production branch.
+There are no guarantees for the state of the other branches at any given time.
+Also make sure that all submodules are pulled as well using:
+
+```
+git submodule update --init
+```
+
+## Description
+
+One of the great benefits with using H5P is that it gives you access to lots of
+different [interactive content types](https://h5p.org/content-types-and-applications).
+
+Another great benefit with H5P is that it allows you to easily share and reuse
+content. To reuse content, you just download the H5P you would like to edit and
+make your changes – e.g. translate to a new language or adjust it to a new
+situation.
+
+H5P is:
+
+* Open Source
+* Free to Use
+* HTML5
+* Responsive
+
+The H5P community is actively contributing to improve H5P. Updates and new
+features are continuously made available on the community portal
+[H5P.org](https://h5p.org).
+
+View our [setup for Moodle](https://h5p.org/moodle) to get information on how
+to get started with H5P.
+
+### GDPR Compliance
+Information useful to help you achieve GDPR compliance while using this plugin
+can be found at [H5P.org's GDPR Compliance](https://h5p.org/plugin-gdpr-compliance) page.
+
+### Development Version
+Warning! Never use the development version in production, there are no guarantees for which state the development branches are in at a given time.
+
+Inside your `moodle/mod` folder you run the following command:
+```
+git clone -b master https://github.com/h5p/h5p-moodle-plugin.git hvp && cd hvp && git submodule update --init
+```
+
+### Enabling The Plugin
+In Moodle, go to administrator -> plugin overview, and press 'Update database'.
+
+## Settings
+Settings can be found at: Site Administration -> Plugins -> Activity Modules -> H5P
+
+## Contributing
+Feel free to contribute by:
+* Submitting translations to the [Moodle AMOS translator](https://lang.moodle.org/local/amos/view.php)
+* Testing and creating issues. But remember to check if the issues is already
+reported before creating a new one. Perhaps you can contribute to an already
+existing issue?
+* Solving issues and submitting code through Pull Requests to the 'master' branch or on a separate feature branch.

ajax.php

@@ -0,0 +1,506 @@
+<?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/>.
+/**
+ * Responsible for handling AJAX requests related to H5P.
+ *
+ * @package    mod_hvp
+ * @copyright  2016 Joubel AS <contact@joubel.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+use mod_hvp\framework;
+
+define('AJAX_SCRIPT', true);
+require(__DIR__ . '/../../config.php');
+require_once($CFG->libdir . '/filelib.php');
+require_once("locallib.php");
+
+require_login();
+
+$action = required_param('action', PARAM_ALPHA);
+switch($action) {
+
+    /*
+     * Handle user data reporting
+     *
+     * Type: HTTP POST
+     *
+     * Parameters:
+     *  - content_id
+     *  - data_type
+     *  - sub_content_id
+     */
+    case 'contentsuserdata':
+        \mod_hvp\content_user_data::handle_ajax();
+        break;
+
+    /*
+     * Handle restricting H5P libraries
+     *
+     * Type: HTTP GET
+     *
+     * Parameters:
+     *  - library_id
+     *  - restrict (0 or 1)
+     *  - token
+     */
+    case 'restrictlibrary':
+
+        // Check permissions.
+        $context = \context_system::instance();
+        if (!has_capability('mod/hvp:restrictlibraries', $context)) {
+            \H5PCore::ajaxError(get_string('nopermissiontorestrict', 'hvp'));
+            http_response_code(403);
+            break;
+        }
+
+        $libraryid = required_param('library_id', PARAM_INT);
+        $restrict = required_param('restrict', PARAM_INT);
+
+        if (!\H5PCore::validToken('library_' . $libraryid, required_param('token', PARAM_RAW))) {
+            \H5PCore::ajaxError(get_string('invalidtoken', 'hvp'));
+            exit;
+        }
+
+        hvp_restrict_library($libraryid, $restrict);
+        header('Cache-Control: no-cache');
+        header('Content-Type: application/json');
+        echo json_encode(array(
+            'url' => (new moodle_url('/mod/hvp/ajax.php', array(
+                'action' => 'restrict_library',
+                'token' => \H5PCore::createToken('library_' . $libraryid),
+                'restrict' => ($restrict === '1' ? 0 : 1),
+                'library_id' => $libraryid
+            )))->out(false)));
+        break;
+
+    /*
+     * Collecting data needed by H5P content upgrade
+     *
+     * Type: HTTP GET
+     *
+     * Parameters:
+     *  - library (Format: /<machine-name>/<major-version>/<minor-version>)
+     */
+    case 'getlibrarydataforupgrade':
+
+        // Check permissions.
+        $context = \context_system::instance();
+        if (!has_capability('mod/hvp:updatelibraries', $context)) {
+            \H5PCore::ajaxError(get_string('nopermissiontoupgrade', 'hvp'));
+            http_response_code(403);
+            break;
+        }
+
+        $library = required_param('library', PARAM_TEXT);
+        $library = explode('/', substr($library, 1));
+
+        if (count($library) !== 3) {
+            http_response_code(422);
+            return;
+        }
+
+        $library = hvp_get_library_upgrade_info($library[0], $library[1], $library[2]);
+
+        header('Cache-Control: no-cache');
+        header('Content-Type: application/json');
+        print json_encode($library);
+
+        break;
+
+    /*
+     * Saving upgraded content, and returning next batch to process
+     *
+     * Type: HTTP POST
+     *
+     * Parameters:
+     *  - library_id
+     */
+    case 'libraryupgradeprogress':
+        // Check upgrade permissions.
+        $context = \context_system::instance();
+        if (!has_capability('mod/hvp:updatelibraries', $context)) {
+            \H5PCore::ajaxError(get_string('nopermissiontoupgrade', 'hvp'));
+            http_response_code(403);
+            break;
+        }
+
+        // Because of a confirmed bug in PHP, filter_input(INPUT_SERVER, ...)
+        // will return null on some versions of FCGI/PHP (5.4 and probably
+        // older versions as well), ref. https://bugs.php.net/bug.php?id=49184.
+        if ($_SERVER['REQUEST_METHOD'] === 'POST') {
+            $libraryid = required_param('library_id', PARAM_INT);
+            $out = hvp_content_upgrade_progress($libraryid);
+            header('Cache-Control: no-cache');
+            header('Content-Type: application/json');
+            print json_encode($out);
+        } else {
+            // Only allow POST.
+            http_response_code(405);
+        }
+        break;
+
+    /*
+     * Handle set finished / storing grades
+     *
+     * Type: HTTP GET
+     *
+     * Parameters:
+     *  - contentId
+     *  - score
+     *  - maxScore
+     */
+    case 'setfinished':
+        \mod_hvp\user_grades::handle_ajax();
+        break;
+
+    /*
+     * Saves a dynamically graded grade to the gradebook
+     *
+     * Type: HTTP POST
+     *
+     * Parameters:
+     *  - subcontent_id
+     *  - score
+     */
+    case 'updatesubcontentscore':
+        \mod_hvp\user_grades::handle_dynamic_grading();
+        break;
+
+    /*
+     * Returns a grade
+     *
+     * Type: HTTP GET
+     *
+     * Parameters:
+     *  - subcontent_id
+     */
+    case 'getsubcontentscore':
+        \mod_hvp\user_grades::return_subcontent_grade();
+        break;
+
+    /*
+     * Provide data for results view
+     *
+     * Type: HTTP GET
+     *
+     * Parameters:
+     *  int content_id
+     *  int offset
+     *  int limit
+     *  int sortBy
+     *  int sortDir
+     *  string[] filters
+     */
+    case 'results':
+        $results = new \mod_hvp\results();
+        $results->print_results();
+        break;
+
+    /*
+     * Load list of libraries or details for library.
+     *
+     * Parameters:
+     *  string machineName
+     *  int majorVersion
+     *  int minorVersion
+     */
+    case 'libraries':
+        if (!framework::has_editor_access('nopermissiontoviewcontenttypes')) {
+            break;
+        }
+
+        // Get parameters.
+        $name = optional_param('machineName', '', PARAM_TEXT);
+        $major = optional_param('majorVersion', 0, PARAM_INT);
+        $minor = optional_param('minorVersion', 0, PARAM_INT);
+        $editor = framework::instance('editor');
+        $language = optional_param('default-language', null, PARAM_RAW);
+
+        if (!empty($name)) {
+            $editor->ajax->action(H5PEditorEndpoints::SINGLE_LIBRARY, $name,
+                $major, $minor, framework::get_language(), '', '', $language);
+
+            new \mod_hvp\event(
+                    'library', null,
+                    null, null,
+                    $name, $major . '.' . $minor
+            );
+        } else {
+            $editor->ajax->action(H5PEditorEndpoints::LIBRARIES);
+        }
+
+        break;
+
+    /*
+     * Load content type cache list to display available libraries in hub
+     */
+    case 'contenttypecache':
+        if (!framework::has_editor_access('nopermissiontoviewcontenttypes')) {
+            break;
+        }
+
+        $editor = framework::instance('editor');
+        $editor->ajax->action(H5PEditorEndpoints::CONTENT_TYPE_CACHE);
+        break;
+
+    /*
+     * Handle file upload through the editor.
+     *
+     * Parameters:
+     *  int contentId
+     *  int contextId
+     */
+    case 'files':
+        $token = required_param('token', PARAM_RAW);
+        $contentid = required_param('contentId', PARAM_INT);
+        if (!framework::has_editor_access('nopermissiontouploadfiles')) {
+            break;
+        }
+
+        $editor = framework::instance('editor');
+        $editor->ajax->action(H5PEditorEndpoints::FILES, $token, $contentid);
+        break;
+
+    /*
+     * Handle file upload through the editor.
+     *
+     * Parameters:
+     *  raw token
+     *  raw contentTypeUrl
+     */
+    case 'libraryinstall':
+        $token = required_param('token', PARAM_RAW);
+        $machinename = required_param('id', PARAM_TEXT);
+        $editor = framework::instance('editor');
+        $editor->ajax->action(H5PEditorEndpoints::LIBRARY_INSTALL, $token, $machinename);
+        break;
+
+    /*
+     * Install libraries from h5p and retrieve content json
+     *
+     * Parameters:
+     *  file h5p
+     */
+    case 'libraryupload':
+        $token = required_param('token', PARAM_RAW);
+        if (!framework::has_editor_access('nopermissiontouploadcontent')) {
+            break;
+        }
+
+        $editor = framework::instance('editor');
+        $uploadpath = $_FILES['h5p']['tmp_name'];
+        $contentid = optional_param('contentId', 0, PARAM_INT);
+        $editor->ajax->action(H5PEditorEndpoints::LIBRARY_UPLOAD, $token, $uploadpath, $contentid);
+        break;
+
+    /*
+     * Record xAPI result from view
+     */
+    case 'xapiresult':
+        \mod_hvp\xapi_result::handle_ajax();
+        break;
+
+    case 'translations':
+        if (!framework::has_editor_access('nopermissiontogettranslations')) {
+            break;
+        }
+        $language = required_param('language', PARAM_RAW);
+        $editor = framework::instance('editor');
+        $editor->ajax->action(H5PEditorEndpoints::TRANSLATIONS, $language);
+        break;
+
+    /*
+     * Handle filtering of parameters through AJAX.
+     */
+    case 'filter':
+        $token = required_param('token', PARAM_RAW);
+        $libraryparameters = required_param('libraryParameters', PARAM_RAW);
+
+        if (!framework::has_editor_access('nopermissiontouploadfiles')) {
+            break;
+        }
+
+        $editor = framework::instance('editor');
+        $editor->ajax->action(H5PEditorEndpoints::FILTER, $token, $libraryparameters);
+        break;
+
+    /*
+     * Handle filtering of parameters through AJAX.
+     */
+    case 'contenthubmetadatacache':
+        if (!framework::has_editor_access('nopermissiontoviewcontenthubcache')) {
+            break;
+        }
+        $editor = framework::instance('editor');
+        $editor->ajax->action(H5PEditorEndpoints::CONTENT_HUB_METADATA_CACHE, framework::get_language());
+        break;
+
+    case 'contenthubregistration':
+        // Check permission.
+        $context = \context_system::instance();
+        if (!has_capability('mod/hvp:contenthubregistration', $context)) {
+            \H5PCore::ajaxError(get_string('contenthub:nopermissions', 'hvp'), 'NO_PERMISSION', 403);
+            return;
+        }
+
+        $token = required_param('_token', PARAM_RAW);
+
+        if (!H5PCore::validToken('contentHubRegistration', $token)) {
+            H5PCore::ajaxError('Invalid token', 'INVALID_TOKEN', 401);
+            return;
+        }
+        $logo = isset($_FILES['logo']) ? $_FILES['logo'] : null;
+
+        $formdata = [
+            'name'           => required_param('name', PARAM_TEXT),
+            'email'          => required_param('email', PARAM_EMAIL),
+            'description'    => optional_param('description', '', PARAM_TEXT),
+            'contact_person' => optional_param('contact_person', '', PARAM_TEXT),
+            'phone'          => optional_param('phone', '', PARAM_TEXT),
+            'address'        => optional_param('address', '', PARAM_TEXT),
+            'city'           => optional_param('city', '', PARAM_TEXT),
+            'zip'            => optional_param('zip', '', PARAM_TEXT),
+            'country'        => optional_param('country', '', PARAM_TEXT),
+            'remove_logo'    => optional_param('remove_logo', '', PARAM_BOOL),
+        ];
+
+        $core = framework::instance();
+        $result = $core->hubRegisterAccount($formdata, $logo);
+
+        if ($result['success'] === false) {
+            $core->h5pF->setErrorMessage($result['message']);
+            H5PCore::ajaxError($result['message'], $result['error_code'], $result['status_code']);
+            return;
+        }
+
+        $core->h5pF->setInfoMessage($result['message']);
+        H5PCore::ajaxSuccess($result['message']);
+        break;
+
+    /*
+     * Handle filtering of parameters through AJAX.
+     */
+    case 'getcontent':
+        $token = required_param('token', PARAM_RAW);
+        $hubid = required_param('hubId', PARAM_INT);
+
+        $editor = \mod_hvp\framework::instance('editor');
+        $editor->ajax->action(H5PEditorEndpoints::GET_HUB_CONTENT, $token, $hubid, null);
+        break;
+
+    /*
+     * Handle publishing of content to the H5P OER Hub.
+     */
+    case 'share':
+        if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
+            http_response_code(405);
+        }
+        $token = required_param('_token', PARAM_RAW);
+        $id = required_param('id', PARAM_INT);
+
+        if (!\H5PCore::validToken('share_' . $id, $token)) {
+            \H5PCore::ajaxError(get_string('invalidtoken', 'hvp'));
+            break;
+        }
+
+        $data = array(
+            'title'                => required_param('title', PARAM_RAW),
+            'language'             => required_param('language', PARAM_RAW),
+            'license'              => required_param('license', PARAM_RAW),
+            'license_version'      => required_param('license_version', PARAM_RAW),
+            'level'                => optional_param('level', null, PARAM_RAW),
+            'disciplines'          => optional_param_array('disciplines', null, PARAM_RAW),
+            'keywords'             => optional_param_array('keywords', null, PARAM_RAW),
+            'summary'              => optional_param('summary', null, PARAM_RAW),
+            'description'          => optional_param('description', null, PARAM_RAW),
+            'screenshot_alt_texts' => optional_param_array('screenshot_alt_texts', null, PARAM_RAW),
+            'remove_screenshots'   => optional_param_array('remove_screenshots', null, PARAM_RAW),
+            'remove_icon'          => optional_param('remove_icon', null, PARAM_RAW),
+            'age'                  => optional_param('age', null, PARAM_RAW),
+        );
+
+        // Load content.
+        $core = \mod_hvp\framework::instance();
+        $cm = get_coursemodule_from_id('hvp', $id);
+        $content = $core->loadContent($cm->instance);
+
+        // Update Hub status for content before proceeding.
+        $newstate = hvp_update_hub_status($content);
+        $synced = $newstate !== false ? $newstate : intval($content['synced']);
+
+        if ($synced === \H5PContentHubSyncStatus::WAITING) {
+            \H5PCore::ajaxError(get_string('contentissyncing', 'hvp'));
+            break;
+        }
+
+        // Create URL.
+        $data['download_url'] = hvp_create_hub_export_url($cm->id, $content);
+
+        // Get file size.
+        $slug = $content['slug'] ? $content['slug'] . '-' : '';
+        $filecontext = context_course::instance($cm->course);
+        $file = get_file_storage()->get_file($filecontext->id, 'mod_hvp', 'exports', 0, '/', "{$slug}{$content['id']}.h5p");
+        if (!$file) {
+            \H5PCore::ajaxError(get_string('noexport', 'hvp'));
+            break;
+        }
+        $size = $file->get_filesize();
+        $data['size'] = empty($size) ? -1 : $size;
+
+        // Add the icon and any screenshots.
+        $files = array(
+            'icon' => !empty($_FILES['icon']) ? $_FILES['icon'] : null,
+            'screenshots' => !empty($_FILES['screenshots']) ? $_FILES['screenshots'] : null,
+        );
+
+        try {
+            $isedit = !empty($content['contentHubId']);
+            $updatecontent = $synced === \H5PContentHubSyncStatus::NOT_SYNCED && $isedit;
+            if ($updatecontent) {
+                // Node has been edited since the last time it was published.
+                $data['resync'] = 1;
+            }
+            $result = $core->hubPublishContent($data, $files, $isedit ? $content['contentHubId'] : null);
+
+            $fields = array(
+                'shared' => 1, // Content is always shared after sharing or editing.
+            );
+            if (!$isedit) {
+                $fields['hub_id'] = $result->content->id;
+                // Sync will not happen on 'edit info', only for 'publish' or 'sync'.
+                $fields['synced'] = \H5PContentHubSyncStatus::WAITING;
+            } else if ($updatecontent) {
+                $fields['synced'] = \H5PContentHubSyncStatus::WAITING;
+            }
+
+            // Store the content hub id.
+            $core->h5pF->updateContentFields($cm->instance, $fields);
+
+            H5PCore::ajaxSuccess();
+        } catch (Exception $e) {
+            H5PCore::ajaxError(!empty($e->errors) ? $e->errors : $e->getMessage());
+        }
+
+        break;
+
+    /*
+     * Throw error if AJAX isnt handeled
+     */
+    default:
+        throw new coding_exception('Unhandled AJAX');
+        break;
+}

amd/build/communicator.min.js

@@ -0,0 +1 @@
+define([],function(){var a=function(){this._actionHandlers={},this.registerEventListeners()};return a.prototype._actionHandlers={},a.prototype.on=function(a,b){this._actionHandlers[a]=b},a.prototype.send=function(a,b){void 0===b&&(b={}),b.context="h5p",b.action=a,window.parent.postMessage(b,"*")},a.prototype.registerEventListeners=function(){var a=this;window.addEventListener("message",function(b){window.parent===b.source&&"h5p"===b.data.context&&void 0!==a._actionHandlers[b.data.action]&&a._actionHandlers[b.data.action](b.data)},!1)},new a});

amd/build/contenthubregistration.min.js

@@ -0,0 +1,2 @@
+define ("mod_hvp/contenthubregistration",[],function(){return{init:function init(){var a=H5PSettings;a.container=document.getElementById("h5p-hub-registration");H5PHub.createRegistrationUI(a)}}});
+//# sourceMappingURL=contenthubregistration.min.js.map

amd/build/contenthubregistration.min.js.map

@@ -0,0 +1 @@
+{"version":3,"sources":["../src/contenthubregistration.js"],"names":["define","init","settings","H5PSettings","container","document","getElementById","H5PHub","createRegistrationUI"],"mappings":"AAAAA,OAAM,kCAAC,EAAD,CAAK,UAAY,CACrB,MAAO,CACLC,IAAI,CAAE,eAAY,CAEhB,GAAMC,CAAAA,CAAQ,CAAGC,WAAjB,CACAD,CAAQ,CAACE,SAAT,CAAqBC,QAAQ,CAACC,cAAT,CAAwB,sBAAxB,CAArB,CACAC,MAAM,CAACC,oBAAP,CAA4BN,CAA5B,CACD,CANI,CAQR,CATK,CAAN","sourcesContent":["define([], function () {\n  return {\n    init: function () {\n      // Moodle complains if you pass in settings through init (js_call_amd) since they are too large\n      const settings = H5PSettings;\n      settings.container = document.getElementById('h5p-hub-registration');\n      H5PHub.createRegistrationUI(settings);\n    },\n  };\n});\n"],"file":"contenthubregistration.min.js"}

amd/build/embed.min.js

@@ -0,0 +1 @@
+define(["jquery","mod_hvp/communicator"],function(a,b){a(document).ready(function(){a(".h5p-iframe").ready(function(){var a=document.querySelector(".h5p-iframe"),c=a.contentWindow.H5P;if(c&&c.instances&&c.instances[0]){var d,e=c.instances[0],f=!1;b.on("ready",function(){b.send("hello")}),b.on("hello",function(){f=!0,a.contentDocument.body.style.overflow="hidden",document.body.classList.add("h5p-resizing"),c.trigger(e,"resize")}),b.on("resizePrepared",function(){b.send("resize",{scrollHeight:a.contentDocument.body.scrollHeight})}),b.on("resize",function(){c.trigger(e,"resize")}),c.on(e,"resize",function(){c.isFullscreen||(clearTimeout(d),d=setTimeout(function(){f?b.send("prepareResize",{scrollHeight:a.contentDocument.body.scrollHeight,clientHeight:a.contentDocument.body.clientHeight}):b.send("hello")},0))}),c.trigger(e,"resize")}})})});

amd/src/communicator.js

@@ -0,0 +1,79 @@
+// 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/>.
+
+define([], function() {
+
+    /**
+     * When embedded the communicator helps talk to the parent page.
+     * This is a copy of the H5P.communicator, which we need to communicate in this context
+     */
+    var H5PEmbedCommunicator = function() {
+        this._actionHandlers = {};
+        this.registerEventListeners();
+    };
+
+    /** @type {Object} Maps actions to functions. */
+    H5PEmbedCommunicator.prototype._actionHandlers = {};
+
+    /**
+     * Register action listener.
+     *
+     * @param {string} action What you are waiting for
+     * @param {function} handler What you want done
+     */
+    H5PEmbedCommunicator.prototype.on = function(action, handler) {
+        this._actionHandlers[action] = handler;
+    };
+
+    /**
+     * Send a message to the all mighty father.
+     *
+     * @param {string} action
+     * @param {Object} [data] payload
+     */
+    H5PEmbedCommunicator.prototype.send = function(action, data) {
+        if (data === undefined) {
+            data = {};
+        }
+        data.context = 'h5p';
+        data.action = action;
+
+        // Parent origin can be anything.
+        window.parent.postMessage(data, '*');
+    };
+
+
+    /**
+     * Register event listeners for the communicator.
+     *
+     * @method registerEventListeners
+     */
+    H5PEmbedCommunicator.prototype.registerEventListeners = function() {
+        var self = this;
+        // Register message listener.
+        window.addEventListener('message', function receiveMessage(event) {
+            if (window.parent !== event.source || event.data.context !== 'h5p') {
+                return; // Only handle messages from parent and in the correct context.
+            }
+
+            if (self._actionHandlers[event.data.action] !== undefined) {
+                self._actionHandlers[event.data.action](event.data);
+            }
+        }, false);
+    };
+
+    return new H5PEmbedCommunicator();
+
+});

amd/src/contenthubregistration.js

@@ -0,0 +1,10 @@
+define([], function () {
+  return {
+    init: function () {
+      // Moodle complains if you pass in settings through init (js_call_amd) since they are too large
+      const settings = H5PSettings;
+      settings.container = document.getElementById('h5p-hub-registration');
+      H5PHub.createRegistrationUI(settings);
+    },
+  };
+});

amd/src/embed.js

@@ -0,0 +1,90 @@
+// 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/>.
+
+define(['jquery', 'mod_hvp/communicator'], function($, H5PEmbedCommunicator) {
+
+    // Wait for instances to be initialize.
+    $(document).ready(function() {
+        $('.h5p-iframe').ready(function() {
+            var iFrame = document.querySelector('.h5p-iframe');
+            var H5P = iFrame.contentWindow.H5P;
+
+            // Check for H5P instances.
+            if (!H5P || !H5P.instances || !H5P.instances[0]) {
+                return;
+            }
+
+            var resizeDelay;
+            var instance = H5P.instances[0];
+            var parentIsFriendly = false;
+
+            // Handle that the resizer is loaded after the iframe.
+            H5PEmbedCommunicator.on('ready', function() {
+                H5PEmbedCommunicator.send('hello');
+            });
+
+            // Handle hello message from our parent window.
+            H5PEmbedCommunicator.on('hello', function() {
+                // Initial setup/handshake is done.
+                parentIsFriendly = true;
+
+                // Hide scrollbars for correct size.
+                iFrame.contentDocument.body.style.overflow = 'hidden';
+
+                document.body.classList.add('h5p-resizing');
+
+                // Content need to be resized to fit the new iframe size.
+                H5P.trigger(instance, 'resize');
+            });
+
+            // When resize has been prepared tell parent window to resize.
+            H5PEmbedCommunicator.on('resizePrepared', function() {
+                H5PEmbedCommunicator.send('resize', {
+                    scrollHeight: iFrame.contentDocument.body.scrollHeight
+                });
+            });
+
+            H5PEmbedCommunicator.on('resize', function() {
+                H5P.trigger(instance, 'resize');
+            });
+
+            H5P.on(instance, 'resize', function() {
+                if (H5P.isFullscreen) {
+                    return; // Skip iframe resize.
+                }
+
+                // Use a delay to make sure iframe is resized to the correct size.
+                clearTimeout(resizeDelay);
+                resizeDelay = setTimeout(function() {
+                    // Only resize if the iframe can be resized.
+                    if (parentIsFriendly) {
+                        H5PEmbedCommunicator.send('prepareResize',
+                            {
+                                scrollHeight: iFrame.contentDocument.body.scrollHeight,
+                                clientHeight: iFrame.contentDocument.body.clientHeight
+                            }
+                        );
+                    } else {
+                        H5PEmbedCommunicator.send('hello');
+                    }
+                }, 0);
+            });
+
+            // Trigger initial resize for instance.
+            H5P.trigger(instance, 'resize');
+        });
+    });
+
+});

autoloader.php

@@ -0,0 +1,80 @@
+<?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/>.
+
+/**
+ * References files that should be automatically loaded
+ *
+ * @package    mod_hvp
+ * @copyright  2016 Joubel AS <contact@joubel.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * A simple autoloader which makes it easy to load classes when you need them.
+ *
+ * @param string $class name
+ */
+function hvp_autoloader($class) {
+    global $CFG;
+    static $classmap;
+    if (!isset($classmap)) {
+        $classmap = array(
+        // Core.
+        'H5PCore' => 'library/h5p.classes.php',
+        'H5PFrameworkInterface' => 'library/h5p.classes.php',
+        'H5PContentValidator' => 'library/h5p.classes.php',
+        'H5PValidator' => 'library/h5p.classes.php',
+        'H5PStorage' => 'library/h5p.classes.php',
+        'H5PExport' => 'library/h5p.classes.php',
+        'H5PDevelopment' => 'library/h5p-development.class.php',
+        'H5PFileStorage' => 'library/h5p-file-storage.interface.php',
+        'H5PDefaultStorage' => 'library/h5p-default-storage.class.php',
+        'H5PEventBase' => 'library/h5p-event-base.class.php',
+        'H5PMetadata' => 'library/h5p-metadata.class.php',
+
+        // Editor.
+        'H5peditor' => 'editor/h5peditor.class.php',
+        'H5PEditorAjax' => 'editor/h5peditor-ajax.class.php',
+        'H5PEditorAjaxInterface' => 'editor/h5peditor-ajax.interface.php',
+        'H5peditorFile' => 'editor/h5peditor-file.class.php',
+        'H5peditorStorage' => 'editor/h5peditor-storage.interface.php',
+
+        // Reporting.
+        'H5PReport' => 'reporting/h5p-report.class.php',
+        'H5PReportXAPIData' => 'reporting/h5p-report-xapi-data.class.php',
+        'ChoiceProcessor' => 'reporting/type-processors/choice-processor.class.php',
+        'CompoundProcessor' => 'reporting/type-processors/compound-processor.class.php',
+        'FillInProcessor' => 'reporting/type-processors/fill-in-processor.class.php',
+        'LongChoiceProcessor' => 'reporting/type-processors/long-choice-processor.class.php',
+        'MatchingProcessor' => 'reporting/type-processors/matching-processor.class.php',
+        'TrueFalseProcessor' => 'reporting/type-processors/true-false-processor.class.php',
+        'IVOpenEndedQuestionProcessor' => 'reporting/type-processors/iv-open-ended-question-processor.class.php',
+        'TypeProcessor' => 'reporting/type-processors/type-processor.class.php',
+        'DocumentationToolProcessor' => 'reporting/type-processors/compound/documentation-tool-processor.class.php',
+        'GoalsPageProcessor' => 'reporting/type-processors/compound/goals-page-processor.class.php',
+        'GoalsAssessmentPageProcessor' => 'reporting/type-processors/compound/goals-assessment-page-processor.class.php',
+        'StandardPageProcessor' => 'reporting/type-processors/compound/standard-page-processor.class.php',
+
+        // Plugin specific classes are loaded by Moodle.
+        );
+    }
+
+    if (isset($classmap[$class])) {
+        require_once($CFG->dirroot . '/mod/hvp/' . $classmap[$class]);
+    }
+}
+spl_autoload_register('hvp_autoloader');

backup/moodle2/backup_hvp_activity_task.class.php

@@ -0,0 +1,90 @@
+<?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/>.
+
+/**
+ * Defines backup_hvp_activity_task class
+ *
+ * @package     mod_hvp
+ * @category    backup
+ * @copyright   2016 Joubel AS <contact@joubel.com>
+ * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+require_once($CFG->dirroot . '/mod/hvp/backup/moodle2/backup_hvp_stepslib.php');
+
+/**
+ * Provides the steps to perform one complete backup of a H5P instance
+ *
+ * @copyright   2018 Joubel AS <contact@joubel.com>
+ * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class backup_hvp_activity_task extends backup_activity_task {
+
+    /**
+     * No specific settings for this activity
+     */
+    protected function define_my_settings() {
+    }
+
+    /**
+     * Defines a backup step to store the instance data in the hvp.xml file
+     */
+    protected function define_my_steps() {
+        global $CFG;
+
+        // Add hvp activity data and content files.
+        $this->add_step(new backup_hvp_activity_structure_step('hvp_structure', 'hvp.xml'));
+
+        // Allow user to override library backup.
+        $backuplibraries = !(isset($CFG->mod_hvp_backup_libraries) && $CFG->mod_hvp_backup_libraries === '0');
+
+        // Exclude hvp libraries step for local 'imports'.
+        if ($backuplibraries && backup_controller_dbops::backup_includes_files($this->plan->get_backupid())) {
+
+            // Note that this step will only run once per backup as it generates
+            // a shared resource.
+            $this->add_step(new backup_hvp_libraries_structure_step('hvp_libraries', 'hvp_libraries.xml'));
+        }
+    }
+
+    /**
+     * Encodes URLs to the index.php and view.php scripts
+     *
+     * @param string $content some HTML text that eventually contains URLs to the activity instance scripts
+     * @return string the content with the URLs encoded
+     */
+    static public function encode_content_links($content) {
+        global $CFG;
+
+        $base = preg_quote($CFG->wwwroot, "/");
+
+        // Link to the list of glossaries.
+        $search = "/(".$base."\/mod\/hvp\/index.php\?id\=)([0-9]+)/";
+        $content = preg_replace($search, '$@HVPINDEX*$2@$', $content);
+
+        // Link to hvp view by module id.
+        $search = "/(".$base."\/mod\/hvp\/view.php\?id\=)([0-9]+)/";
+        $content = preg_replace($search, '$@HVPVIEWBYID*$2@$', $content);
+
+        // Link to hvp embed by module id.
+        $search = "/(".$base."\/mod\/hvp\/embed.php\?id\=)([0-9]+)/";
+        $content = preg_replace($search, '$@HVPEMBEDBYID*$2@$', $content);
+
+        return $content;
+    }
+}

backup/moodle2/backup_hvp_stepslib.php

@@ -0,0 +1,248 @@
+<?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/>.
+
+/**
+ * Defines backup structure steps for both hvp content and hvp libraries.
+ *
+ * @package     mod_hvp
+ * @category    backup
+ * @copyright   2016 Joubel AS <contact@joubel.com>
+ * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Define the complete hvp structure for backup, with file and id annotations
+ *
+ * @copyright   2018 Joubel AS <contact@joubel.com>
+ * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class backup_hvp_activity_structure_step extends backup_activity_structure_step {
+
+    /**
+     * Defines backup element's structure
+     *
+     * @return backup_nested_element
+     * @throws base_element_struct_exception
+     * @throws base_step_exception
+     */
+    protected function define_structure() {
+
+        // To know if we are including user info.
+        $userinfo = $this->get_setting_value('userinfo');
+
+        // Define each element separated.
+        $hvp = new backup_nested_element('hvp', array('id'), array(
+            'name',
+            'machine_name',
+            'major_version',
+            'minor_version',
+            'intro',
+            'introformat',
+            'json_content',
+            'embed_type',
+            'disable',
+            'content_type',
+            'source',
+            'year_from',
+            'year_to',
+            'license_version',
+            'changes',
+            'license_extras',
+            'author_comments',
+            'slug',
+            'timecreated',
+            'timemodified',
+            'authors',
+            'license',
+            'completionpass'
+        ));
+
+        // User data.
+        $entries = new backup_nested_element('content_user_data');
+        $contentuserdata = new backup_nested_element('entry', array(
+            'user_id', // Annotated.
+            'sub_content_id'
+            ), array(
+            'data_id',
+            'data',
+            'preloaded',
+            'delete_on_content_change',
+        ));
+
+        // Build the tree.
+
+        $hvp->add_child($entries);
+        $entries->add_child($contentuserdata);
+
+        // Define sources.
+
+        // Uses library name and version instead of main_library_id.
+        $hvp->set_source_sql('
+          SELECT h.id,
+                 hl.machine_name,
+                 hl.major_version,
+                 hl.minor_version,
+                 h.name,
+                 h.intro,
+                 h.introformat,
+                 h.json_content,
+                 h.embed_type,
+                 h.disable,
+                 h.content_type,
+                 h.slug,
+                 h.timecreated,
+                 h.timemodified,
+                 h.authors,
+                 h.source,
+                 h.year_from,
+                 h.year_to,
+                 h.license_version,
+                 h.changes,
+                 h.license_extras,
+                 h.author_comments,
+                 h.license,
+                 h.completionpass
+          FROM {hvp} h
+              JOIN {hvp_libraries} hl ON hl.id = h.main_library_id
+              WHERE h.id = ?', array(backup::VAR_ACTIVITYID));
+
+        // All the rest of elements only happen if we are including user info.
+        if ($userinfo) {
+            $contentuserdata->set_source_table('hvp_content_user_data', array('hvp_id' => backup::VAR_PARENTID));
+        }
+
+        // Define id annotations.
+        $contentuserdata->annotate_ids('user', 'user_id');
+        // In an ideal world we would use the main_library_id and annotate that
+        // but since we cannot know the required dependencies of the content
+        // without parsing json_content and crawling the libraries_libraries
+        // (library dependencies) table it's much easier to just include all
+        // installed libraries.
+
+        // Define file annotations.
+        $hvp->annotate_files('mod_hvp', 'intro', null, null);
+        $hvp->annotate_files('mod_hvp', 'content', null, null);
+
+        // Return the root element (hvp), wrapped into standard activity structure.
+        return $this->prepare_activity_structure($hvp);
+    }
+}
+
+/**
+ * Backup h5p libraries.
+ *
+ * Structure step in charge of constructing the hvp_libraries.xml file for
+ * all the H5P libraries.
+ *
+ * @copyright   2018 Joubel AS <contact@joubel.com>
+ * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class backup_hvp_libraries_structure_step extends backup_structure_step {
+
+    /**
+     * Determines if backup step should be executed
+     *
+     * @return bool
+     * @throws backup_step_exception
+     */
+    protected function execute_condition() {
+        $fullpath = $this->task->get_taskbasepath();
+        if (empty($fullpath)) {
+            throw new backup_step_exception('backup_structure_step_undefined_fullpath');
+        }
+
+        // Modify filename to use a globally shared file for all libraries.
+        $this->filename = "../{$this->filename}";
+
+        // Append the filename to the full path.
+        $fullpath = rtrim($fullpath, '/') . '/' . $this->filename;
+
+        // Determine if already generated.
+        return !file_exists($fullpath);
+    }
+
+    /**
+     * Defines the structure to be executed by this backup step
+     *
+     * @return backup_nested_element
+     * @throws base_element_struct_exception
+     * @throws dml_exception
+     */
+    protected function define_structure() {
+        // Libraries.
+        $libraries = new backup_nested_element('hvp_libraries');
+        $library = new backup_nested_element('library', array('id'), array(
+            'title',
+            'machine_name',
+            'major_version',
+            'minor_version',
+            'patch_version',
+            'runnable',
+            'fullscreen',
+            'embed_types',
+            'preloaded_js',
+            'preloaded_css',
+            'drop_library_css',
+            'semantics',
+            'restricted',
+            'tutorial_url',
+            'add_to',
+            'metadata'
+        ));
+
+        // Library translations.
+        $translations = new backup_nested_element('translations');
+        $translation = new backup_nested_element('translation', array(
+            'language_code'
+        ), array(
+            'language_json'
+        ));
+
+        // Library dependencies.
+        $dependencies = new backup_nested_element('dependencies');
+        $dependency = new backup_nested_element('dependency', array(
+            'required_library_id'
+        ), array(
+            'dependency_type'
+        ));
+
+        // Build the tree.
+        $libraries->add_child($library);
+
+        $library->add_child($translations);
+        $translations->add_child($translation);
+
+        $library->add_child($dependencies);
+        $dependencies->add_child($dependency);
+
+        // Define sources.
+
+        $library->set_source_table('hvp_libraries', array());
+
+        $translation->set_source_table('hvp_libraries_languages', array('library_id' => backup::VAR_PARENTID));
+
+        $dependency->set_source_table('hvp_libraries_libraries', array('library_id' => backup::VAR_PARENTID));
+
+        // Define file annotations.
+        $context = \context_system::instance();
+        $library->annotate_files('mod_hvp', 'libraries', null, $context->id);
+
+        // Return root element.
+        return $libraries;
+    }
+}

backup/moodle2/restore_hvp_activity_task.class.php

@@ -0,0 +1,115 @@
+<?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/>.
+
+/**
+ * Describe how H5P activites are to be restored from backup
+ *
+ * @package     mod_hvp
+ * @category    backup
+ * @copyright   2016 Joubel AS <contact@joubel.com>
+ * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+require_once($CFG->dirroot . '/mod/hvp/backup/moodle2/restore_hvp_stepslib.php'); // Because it exists (must).
+
+/**
+ * Hvp restore task that provides all the settings and steps to perform one complete restore of the activity.
+ *
+ * @copyright   2018 Joubel AS <contact@joubel.com>
+ * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class restore_hvp_activity_task extends restore_activity_task {
+
+    /**
+     * Define (add) particular settings this activity can have
+     */
+    protected function define_my_settings() {
+        // No particular settings for this activity.
+    }
+
+    /**
+     * Define (add) particular steps this activity can have
+     */
+    protected function define_my_steps() {
+        // Add H5P libraries.
+        $this->add_step(new restore_hvp_libraries_structure_step('hvp_structure', 'hvp_libraries.xml'));
+
+        // Add H5P content.
+        $this->add_step(new restore_hvp_activity_structure_step('hvp_structure', 'hvp.xml'));
+    }
+
+    /**
+     * Define the contents in the activity that must be
+     * processed by the link decoder
+     */
+    static public function define_decode_contents() {
+        $contents = array();
+
+        $contents[] = new restore_decode_content('hvp', array('intro'), 'hvp');
+
+        return $contents;
+    }
+
+    /**
+     * Define the decoding rules for links belonging
+     * to the activity to be executed by the link decoder
+     */
+    static public function define_decode_rules() {
+        $rules = array();
+
+        $rules[] = new restore_decode_rule('HVPVIEWBYID', '/mod/hvp/view.php?id=$1', 'course_module');
+        $rules[] = new restore_decode_rule('HVPINDEX', '/mod/hvp/index.php?id=$1', 'course');
+        $rules[] = new restore_decode_rule('HVPEMBEDBYID', '/mod/hvp/embed.php?id=$1', 'course_module');
+
+        return $rules;
+    }
+
+    /**
+     * Define the restore log rules that will be applied
+     * by the {@link restore_logs_processor} when restoring
+     * hvp logs. It must return one array
+     * of {@link restore_log_rule} objects
+     */
+    static public function define_restore_log_rules() {
+        $rules = array();
+
+        $rules[] = new restore_log_rule('hvp', 'add', 'view.php?id={course_module}', '{hvp}');
+        $rules[] = new restore_log_rule('hvp', 'update', 'view.php?id={course_module}', '{hvp}');
+        $rules[] = new restore_log_rule('hvp', 'view', 'view.php?id={course_module}', '{hvp}');
+
+        return $rules;
+    }
+
+    /**
+     * Define the restore log rules that will be applied
+     * by the {@link restore_logs_processor} when restoring
+     * course logs. It must return one array
+     * of {@link restore_log_rule} objects
+     *
+     * Note this rules are applied when restoring course logs
+     * by the restore final task, but are defined here at
+     * activity level. All them are rules not linked to any module instance (cmid = 0)
+     */
+    static public function define_restore_log_rules_for_course() {
+        $rules = array();
+
+        $rules[] = new restore_log_rule('hvp', 'view all', 'index.php?id={course}', null);
+
+        return $rules;
+    }
+}

backup/moodle2/restore_hvp_stepslib.php

@@ -0,0 +1,372 @@
+<?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/>.
+
+/**
+ * Restore structure step for both hvp content and hvp libraries
+ *
+ * @package     mod_hvp
+ * @category    backup
+ * @copyright   2016 Joubel AS <contact@joubel.com>
+ * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Structure step to restore one H5P activity
+ *
+ * @copyright   2018 Joubel AS <contact@joubel.com>
+ * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class restore_hvp_activity_structure_step extends restore_activity_structure_step {
+
+    /**
+     * Defines restore element's structure
+     *
+     * @return array
+     * @throws base_step_exception
+     */
+    protected function define_structure() {
+        $paths = array();
+        $userinfo = $this->get_setting_value('userinfo');
+
+        // Restore activities.
+        $paths[] = new restore_path_element('hvp', '/activity/hvp');
+
+        if ($userinfo) {
+            // Restore content state.
+            $paths[] = new restore_path_element('content_user_data', '/activity/hvp/content_user_data/entry');
+        }
+
+        // Return the paths wrapped into standard activity structure.
+        return $this->prepare_activity_structure($paths);
+    }
+
+    /**
+     * Process H5P, inserting the record into the database.
+     *
+     * @param $data
+     *
+     * @throws base_step_exception
+     * @throws dml_exception
+     */
+    protected function process_hvp($data) {
+        global $DB;
+
+        $data = (object) $data;
+        $data->course = $this->get_courseid();
+        $data->main_library_id = \restore_hvp_libraries_structure_step::get_library_id($data);
+
+        $data->timecreated = $this->apply_date_offset($data->timecreated);
+        $data->timemodified = $this->apply_date_offset($data->timemodified);
+
+        // Insert the hvp record.
+        $newitemid = $DB->insert_record('hvp', $data);
+        // Immediately after inserting "activity" record, call this.
+        $this->apply_activity_instance($newitemid);
+    }
+
+    /**
+     * Process and inserts content user data.
+     *
+     * @param $data
+     *
+     * @throws dml_exception
+     */
+    protected function process_content_user_data($data) {
+        global $DB;
+
+        $data = (object) $data;
+        $data->user_id = $this->get_mappingid('user', $data->user_id);
+        $data->hvp_id = $this->get_new_parentid('hvp');
+
+        $DB->insert_record('hvp_content_user_data', $data);
+    }
+
+    /**
+     * Additional work that needs to be done after steps executions.
+     */
+    protected function after_execute() {
+        // Add files for intro field.
+        $this->add_related_files('mod_hvp', 'intro', null);
+
+        // Add hvp related files.
+        $this->add_related_files('mod_hvp', 'content', 'hvp');
+    }
+}
+
+/**
+ * Structure step to restore H5P libraries
+ *
+ * @copyright   2018 Joubel AS <contact@joubel.com>
+ * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class restore_hvp_libraries_structure_step extends restore_activity_structure_step {
+
+    /**
+     * Determines if library should be restored.
+     *
+     * @return bool
+     * @throws backup_step_exception
+     */
+    protected function execute_condition() {
+        static $librariesrestored;
+
+        // Prevent this step from running more than once
+        // since all hvp_libraries.xml files are the same.
+        if (!empty($librariesrestored)) {
+            return false;
+        }
+        $librariesrestored = true;
+
+        // Get full path to activity backup location.
+        $fullpath = $this->task->get_taskbasepath();
+        if (empty($fullpath)) {
+            throw new backup_step_exception('backup_structure_step_undefined_fullpath');
+        }
+        $fullpath = rtrim($fullpath, '/');
+
+        // Check for the activity's local hvp_libraries.xml file.
+        if (file_exists("{$fullpath}/{$this->filename}")) {
+            // Use that.
+            return true;
+        }
+
+        // Look for a global hvp_libraries.xml file.
+        if (file_exists("{$fullpath}/../{$this->filename}")) {
+            // Use it.
+            $this->filename = "../{$this->filename}";
+            return true;
+        }
+
+        // Not able to find a hvp_libraries.xml, skip restore and let the admin
+        // be responsible for providing the approperiate libraries.
+        // (Could also be using Import which doesn't need libraries).
+        return false;
+    }
+
+    /**
+     * Defines how library should be restored.
+     *
+     * @return array
+     */
+    protected function define_structure() {
+        $paths = array();
+
+        // Restore libraries first.
+        $paths[] = new restore_path_element('hvp_library', '/hvp_libraries/library');
+
+        // Add translations.
+        $paths[] = new restore_path_element('hvp_library_translation', '/hvp_libraries/library/translations/translation');
+
+        // ... and dependencies.
+        $paths[] = new restore_path_element('hvp_library_dependency', '/hvp_libraries/library/dependencies/dependency');
+
+        // Return the paths wrapped into standard activity structure.
+        return $this->prepare_activity_structure($paths);
+    }
+
+    /**
+     * Process and insert library record.
+     *
+     * @param $data
+     *
+     * @throws dml_exception
+     * @throws restore_step_exception
+     */
+    protected function process_hvp_library($data) {
+        global $DB;
+
+        $data = (object)$data;
+        $oldid = $data->id;
+        unset($data->id);
+
+        $libraryid = self::get_library_id($data);
+        if (!$libraryid) {
+            // There is no updating of libraries. If an older patch version exists
+            // on the site that one will be used instead of the new one in the backup.
+            // This is due to the default behavior when files are restored in Moodle.
+
+            // Restore library.
+            $libraryid = $DB->insert_record('hvp_libraries', $data);
+
+            // Update libraries cache.
+            self::get_library_id($data, $libraryid);
+        }
+
+        // Keep track of libraries for translations and dependencies.
+        $this->set_mapping('hvp_library', $oldid, $libraryid);
+
+        // Update any dependencies that require this library.
+        $this->update_missing_dependencies($oldid, $libraryid);
+    }
+
+    /**
+     * Process and inserts translations for library.
+     *
+     * @param $data
+     *
+     * @throws dml_exception
+     */
+    protected function process_hvp_library_translation($data) {
+        global $DB;
+
+        $data = (object) $data;
+        $data->library_id = $this->get_new_parentid('hvp_library');
+
+        // Check that translations doesn't exists.
+        $translation = $DB->get_record_sql(
+            'SELECT id
+               FROM {hvp_libraries_languages}
+              WHERE library_id = ?
+                AND language_code = ?',
+              array($data->library_id,
+                    $data->language_code)
+        );
+
+        if (empty($translation)) {
+            // Only restore translations if library has been restored.
+            $DB->insert_record('hvp_libraries_languages', $data);
+        }
+    }
+
+    /**
+     * Process and inserts library dependencies.
+     *
+     * @param $data
+     *
+     * @throws dml_exception
+     */
+    protected function process_hvp_library_dependency($data) {
+        global $DB;
+
+        $data             = (object) $data;
+        $data->library_id = $this->get_new_parentid('hvp_library');
+
+        $newlibraryid = $this->get_mappingid('hvp_library', $data->required_library_id);
+        if ($newlibraryid) {
+            $data->required_library_id = $newlibraryid;
+
+            // Check that the dependency doesn't exists.
+            $dependency = $DB->get_record_sql(
+                'SELECT id
+                 FROM {hvp_libraries_libraries}
+                WHERE library_id = ?
+                  AND required_library_id = ?',
+                [
+                    $data->library_id,
+                    $data->required_library_id,
+                ]
+            );
+            if (empty($dependency)) {
+                $DB->insert_record('hvp_libraries_libraries', $data);
+            }
+        } else {
+            // The required dependency hasn't been restored yet. We need to add this dependency later.
+            $this->update_missing_dependencies($data->required_library_id, null, $data);
+        }
+    }
+
+    /**
+     * Additional work that is executed after library restoration steps.
+     *
+     * @throws dml_exception
+     */
+    protected function after_execute() {
+        // Add files for libraries.
+        $context = \context_system::instance();
+        $this->add_related_files('mod_hvp', 'libraries', null, $context->id);
+    }
+
+    /**
+     * Cache to reduce queries.
+     *
+     * @param $library
+     * @param null $set
+     *
+     * @return mixed
+     * @throws dml_exception
+     */
+    public static function get_library_id(&$library, $set = null) {
+        static $keytoid;
+        global $DB;
+
+        $key = $library->machine_name . ' ' . $library->major_version . '.' . $library->minor_version;
+        if (is_null($keytoid)) {
+            $keytoid = array();
+        }
+        if ($set !== null) {
+            $keytoid[$key] = $set;
+        } else if (!isset($keytoid[$key])) {
+            $lib = $DB->get_record_sql(
+                'SELECT id
+                   FROM {hvp_libraries}
+                  WHERE machine_name = ?
+                    AND major_version = ?
+                    AND minor_version = ?',
+                  array($library->machine_name,
+                        $library->major_version,
+                        $library->minor_version)
+            );
+
+            // Non existing = false.
+            $keytoid[$key] = (empty($lib) ? false : $lib->id);
+        }
+
+        return $keytoid[$key];
+    }
+
+    /**
+     * Keep track of missing dependencies since libraries aren't inserted
+     * in any special order
+     *
+     * @param $oldid
+     * @param $newid
+     * @param null $setmissing
+     *
+     * @throws dml_exception
+     */
+    private function update_missing_dependencies($oldid, $newid, $setmissing = null) {
+        static $missingdeps;
+        global $DB;
+
+        if (is_null($missingdeps)) {
+            $missingdeps = array();
+        }
+
+        if ($setmissing !== null) {
+            $missingdeps[$oldid][] = $setmissing;
+        } else if (isset($missingdeps[$oldid])) {
+            foreach ($missingdeps[$oldid] as $missingdep) {
+                $missingdep->required_library_id = $newid;
+
+                // Check that the dependency doesn't exists.
+                $dependency = $DB->get_record_sql(
+                    'SELECT id
+                       FROM {hvp_libraries_libraries}
+                      WHERE library_id = ?
+                        AND required_library_id = ?',
+                      array($missingdep->library_id,
+                            $missingdep->required_library_id)
+                );
+                if (empty($dependency)) {
+                    $DB->insert_record('hvp_libraries_libraries', $missingdep);
+                }
+            }
+            unset($missingdeps[$oldid]);
+        }
+    }
+}

classes/admin_setting_html.php

@@ -0,0 +1,76 @@
+<?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/>.
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * No setting - just html
+ * Note: since admin_setting is not namespaced, this can not be namespaced and put into a class
+ */
+class admin_setting_html extends admin_setting {
+
+    private $hubinfo;
+
+    /**
+     * not a setting, just html
+     *
+     * @param string $name unique ascii name, either 'mysetting' for settings that in config, or 'myplugin/mysetting' for ones in config_plugins.
+     */
+    public function __construct($name, $translation, $hubinfo) {
+        $this->nosave  = true;
+        $this->hubinfo = $hubinfo;
+        parent::__construct($name, $translation, '', '');
+    }
+
+    /**
+     * Always returns true
+     * @return bool Always returns true
+     */
+    public function get_setting() {
+        return true;
+    }
+
+    /**
+     * Always returns true
+     * @return bool Always returns true
+     */
+    public function get_defaultsetting() {
+        return true;
+    }
+
+    /**
+     * Never write settings
+     * @return string Always returns an empty string
+     */
+    public function write_setting($data) {
+        // Do not write any setting.
+        return '';
+    }
+
+    /**
+     * Returns an HTML string
+     * @return string Returns an HTML string
+     */
+    public function output_html($data, $query = '') {
+        global $OUTPUT;
+        $registrationurl = new moodle_url('/mod/hvp/content_hub_registration.php');
+        if ($this->hubinfo === false) {
+          $this->hubinfo = (object) [];
+        }
+        $this->hubinfo->registrationurl = $registrationurl->out(false);
+        return $OUTPUT->render_from_template('mod_hvp/content_hub_registration_box', $this->hubinfo);
+    }
+}

classes/content_hub_service.php

@@ -0,0 +1,56 @@
+<?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/>.
+namespace mod_hvp;
+
+use Exception;
+use moodle_url;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Service for communicating with the content hub
+ *
+ * @package    mod_hvp
+ * @copyright  2020 Joubel AS
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class content_hub_service {
+
+    /**
+     * Get settings for content hub registration UI
+     *
+     * @return array
+     * @throws Exception
+     */
+    public static function get_registration_ui_settings() {
+        $core               = framework::instance();
+        $registrationurl    = new moodle_url('/mod/hvp/ajax.php', [
+            'action' => 'contenthubregistration',
+        ]);
+        $accountsettingsurl = new moodle_url('/admin/settings.php?section=modsettinghvp');
+
+        return [
+            'registrationURL'             => $registrationurl->out(true),
+            'accountSettingsUrl'          => $accountsettingsurl->out(true),
+            'token'                       => $core::createToken('contentHubRegistration'),
+            'l10n'                        => $core->getLocalization(),
+            'licenseAgreementTitle'       => get_string('contenthub:licenseagreementtitle', 'hvp'),
+            'licenseAgreementDescription' => get_string('contenthub:licenseagreementdescription', 'hvp'),
+            'licenseAgreementMainText'    => get_string('contenthub:licenseagreementmaintext', 'hvp'),
+            'accountInfo'                 => $core->hubAccountInfo(),
+        ];
+    }
+}

classes/content_type_cache_form.php

@@ -0,0 +1,61 @@
+<?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/>.
+/**
+ * \mod_hvp\content_type_cache_form class
+ *
+ * @package    mod_hvp
+ * @copyright  2017 Joubel AS
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace mod_hvp;
+
+defined('MOODLE_INTERNAL') || die();
+
+global $CFG;
+require_once($CFG->libdir . '/formslib.php');
+
+/**
+ * Form to update the content type cache that mirrors the available libraries in the H5P hub.
+ *
+ * @package    mod_hvp
+ * @copyright  2017 Joubel AS
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class content_type_cache_form extends \moodleform {
+
+    /**
+     * Define form elements
+     */
+    public function definition() {
+        // Get form.
+        $mform = $this->_form;
+
+        // Get and format date.
+        $lastupdate = get_config('mod_hvp', 'content_type_cache_updated_at');
+
+        $dateformatted = $lastupdate ? \userdate($lastupdate) : get_string('ctcacheneverupdated', 'hvp');
+
+        // Add last update info.
+        $mform->addElement('static', 'lastupdate',
+            get_string('ctcachelastupdatelabel', 'hvp'), $dateformatted);
+
+        $mform->addElement('static', 'lastupdatedescription', '',
+            get_string('ctcachedescription', 'hvp'));
+
+        // Update cache button.
+        $this->add_action_buttons(false, get_string('ctcachebuttonlabel', 'hvp'));
+    }
+}

classes/content_user_data.php

@@ -0,0 +1,256 @@
+<?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/>.
+
+/**
+ * The mod_hvp content user data.
+ *
+ * @package    mod_hvp
+ * @since      Moodle 2.7
+ * @copyright  2016 Joubel AS
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace mod_hvp;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Class content_user_data handles user data and corresponding db operations.
+ *
+ * @package mod_hvp
+ * @copyright   2018 Joubel AS <contact@joubel.com>
+ * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class content_user_data {
+
+    /**
+     * Retrieves ajax parameters for content and update or delete
+     * user data depending on params.
+     *
+     * @throws \coding_exception
+     * @throws \dml_exception
+     */
+    public static function handle_ajax() {
+        // Query String Parameters.
+        $contentid = required_param('content_id', PARAM_INT);
+        $dataid = required_param('data_type', PARAM_RAW);
+        $subcontentid = required_param('sub_content_id', PARAM_INT);
+
+        // Form Data.
+        $data = optional_param('data', null, PARAM_RAW);
+        $preload = optional_param('preload', null, PARAM_INT);
+        $invalidate = optional_param('invalidate', null, PARAM_INT);
+
+        if ($contentid === null || $dataid === null || $subcontentid === null) {
+            // Missing parameters.
+            \H5PCore::ajaxError(get_string('missingparameters', 'hvp'));
+            return;
+        }
+
+        // Saving data.
+        if ($data !== null && $preload !== null && $invalidate !== null) {
+            self::store_data($contentid, $subcontentid, $dataid, $data, $preload, $invalidate);
+        } else {
+            self::fetch_existing_data($contentid, $subcontentid, $dataid);
+        }
+    }
+
+
+    /**
+     * Stores content user data
+     *
+     * @param $contentid
+     * @param $subcontentid
+     * @param $dataid
+     * @param $data
+     * @param $preload
+     * @param $invalidate
+     *
+     * @throws \coding_exception
+     * @throws \dml_exception
+     */
+    private static function store_data($contentid, $subcontentid, $dataid, $data, $preload, $invalidate) {
+        // Validate token.
+        if (!\H5PCore::validToken('contentuserdata', required_param('token', PARAM_RAW))) {
+            \H5PCore::ajaxError(get_string('invalidtoken', 'hvp'));
+            return;
+        }
+
+        if ($contentid === 0) {
+            $context = \context::instance_by_id(required_param('contextId', PARAM_RAW));
+        } else {
+            // Load course module for content to get context.
+            $cm = get_coursemodule_from_instance('hvp', $contentid);
+            if (!$cm) {
+                \H5PCore::ajaxError('No such content');
+                http_response_code(404);
+                return;
+            }
+            $context = \context_module::instance($cm->id);
+        }
+
+        // Check permissions.
+        if (!has_capability('mod/hvp:savecontentuserdata', $context)) {
+            \H5PCore::ajaxError(get_string('nopermissiontosavecontentuserdata', 'hvp'));
+            http_response_code(403);
+            return;
+        }
+
+        if ($data === '0') {
+            // Delete user data.
+            self::delete_user_data($contentid, $subcontentid, $dataid);
+        } else {
+            // Save user data.
+            self::save_user_data($contentid, $subcontentid, $dataid, $preload, $invalidate, $data);
+        }
+        \H5PCore::ajaxSuccess();
+    }
+
+    /**
+     * Return existing content user data
+     *
+     * @param $contentid
+     * @param $subcontentid
+     * @param $dataid
+     *
+     * @throws \dml_exception
+     */
+    private static function fetch_existing_data($contentid, $subcontentid, $dataid) {
+        // Fetch user data.
+        $userdata = self::get_user_data($contentid, $subcontentid, $dataid);
+        \H5PCore::ajaxSuccess($userdata ? $userdata->data : null);
+    }
+
+    /**
+     * Get user data for content.
+     *
+     * @param $contentid
+     * @param $subcontentid
+     * @param $dataid
+     *
+     * @return mixed
+     * @throws \dml_exception
+     */
+    public static function get_user_data($contentid, $subcontentid, $dataid) {
+        global $DB, $USER;
+
+        $result = $DB->get_record('hvp_content_user_data', array(
+                'user_id' => $USER->id,
+                'hvp_id' => $contentid,
+                'sub_content_id' => $subcontentid,
+                'data_id' => $dataid
+            )
+        );
+
+        return $result;
+    }
+
+    /**
+     * Save user data for specific content in database.
+     *
+     * @param $contentid
+     * @param $subcontentid
+     * @param $dataid
+     * @param $preload
+     * @param $invalidate
+     * @param $data
+     *
+     * @throws \dml_exception
+     */
+    public static function save_user_data($contentid, $subcontentid, $dataid, $preload, $invalidate, $data) {
+        global $DB, $USER;
+
+        // Determine if we should update or insert.
+        $update = self::get_user_data($contentid, $subcontentid, $dataid);
+
+        // Wash values to ensure 0 or 1.
+        $preload = ($preload === '0' || $preload === 0) ? 0 : 1;
+        $invalidate = ($invalidate === '0' || $invalidate === 0) ? 0 : 1;
+
+        // New data to be inserted.
+        $newdata = (object)array(
+            'user_id' => $USER->id,
+            'hvp_id' => $contentid,
+            'sub_content_id' => $subcontentid,
+            'data_id' => $dataid,
+            'data' => $data,
+            'preloaded' => $preload,
+            'delete_on_content_change' => $invalidate
+        );
+
+        // Does not exist.
+        if ($update === false) {
+            // Insert new data.
+            $DB->insert_record('hvp_content_user_data', $newdata);
+        } else {
+            // Get old data id.
+            $newdata->id = $update->id;
+
+            // Update old data.
+            $DB->update_record('hvp_content_user_data', $newdata);
+        }
+    }
+
+    /**
+     * Delete user data with specific content from database
+     *
+     * @param $contentid
+     * @param $subcontentid
+     * @param $dataid
+     *
+     * @throws \dml_exception
+     */
+    public static function delete_user_data($contentid, $subcontentid, $dataid) {
+        global $DB, $USER;
+
+        $DB->delete_records('hvp_content_user_data', array(
+            'user_id' => $USER->id,
+            'hvp_id' => $contentid,
+            'sub_content_id' => $subcontentid,
+            'data_id' => $dataid
+        ));
+    }
+
+    /**
+     * Load user data for specific content
+     *
+     * @param $contentid
+     *
+     * @return array User data for specific content if found, else null
+     * @throws \dml_exception
+     */
+    public static function load_pre_loaded_user_data($contentid) {
+        global $DB, $USER;
+
+        $preloadeduserdata = array(
+            'state' => '{}'
+        );
+
+        $results = $DB->get_records('hvp_content_user_data', array(
+            'user_id' => $USER->id,
+            'hvp_id' => $contentid,
+            'sub_content_id' => 0,
+            'preloaded' => 1
+        ));
+
+        // Get data for data ids.
+        foreach ($results as $contentuserdata) {
+            $preloadeduserdata[$contentuserdata->data_id] = $contentuserdata->data;
+        }
+
+        return $preloadeduserdata;
+    }
+}

classes/curl.php

@@ -0,0 +1,59 @@
+<?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/>.
+
+/**
+ * The mod_hvp content user data.
+ *
+ * @package    mod_hvp
+ * @since      Moodle 3.10
+ * @copyright  2020 Joubel AS
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace mod_hvp;
+
+use curl as moodlecurl;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Override Moodle's curl class to provide proper PUT support.
+ *
+ * @package     mod_hvp
+ * @copyright   2020 Joubel AS <contact@joubel.com>
+ * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class curl extends moodlecurl {
+
+    /**
+     * @inheritdoc
+     */
+    public function post($url, $params = '', $options = array()) {
+        $options['CURLOPT_POST'] = 1;
+        $options['CURLOPT_POSTFIELDS'] = $params;
+        return $this->request($url, $options);
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function put($url, $params = '', $options = array()) {
+        $options['CURLOPT_CUSTOMREQUEST'] = 'PUT';
+        $options['CURLOPT_POSTFIELDS'] = $params;
+        return $this->request($url, $options);
+    }
+
+}

classes/editor_ajax.php

@@ -0,0 +1,180 @@
+<?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/>.
+
+/**
+ * \mod_hvp\editor_ajax class
+ *
+ * @package    mod_hvp
+ * @copyright  2016 Joubel AS
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace mod_hvp;
+
+defined('MOODLE_INTERNAL') || die();
+
+require_once(__DIR__ . '/../autoloader.php');
+
+/**
+ * Moodle's implementation of the H5P Editor Ajax interface.
+ * Makes it possible for the editor's core ajax functionality to communicate with the
+ * database used by Moodle.
+ *
+ * @package    mod_hvp
+ * @copyright  2016 Joubel AS
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class editor_ajax implements \H5PEditorAjaxInterface {
+
+    /**
+     * Gets latest library versions that exists locally
+     *
+     * @return array Latest version of all local libraries
+     * @throws \dml_exception
+     */
+    // @codingStandardsIgnoreLine
+    public function getLatestLibraryVersions() {
+        global $DB;
+
+        $maxmajorversionsql = "
+            SELECT hl.machine_name, MAX(hl.major_version) AS major_version
+            FROM {hvp_libraries} hl
+            WHERE hl.runnable = 1
+            GROUP BY hl.machine_name";
+
+        $maxminorversionsql = "
+            SELECT hl2.machine_name, hl2.major_version, MAX(hl2.minor_version) AS minor_version
+            FROM ({$maxmajorversionsql}) hl1
+            JOIN {hvp_libraries} hl2
+            ON hl1.machine_name = hl2.machine_name
+            AND hl1.major_version = hl2.major_version
+            GROUP BY hl2.machine_name, hl2.major_version";
+
+        return $DB->get_records_sql("
+            SELECT hl4.id, hl4.machine_name, hl4.title, hl4.major_version,
+                hl4.minor_version, hl4.patch_version, hl4.has_icon, hl4.restricted
+            FROM {hvp_libraries} hl4
+            JOIN ({$maxminorversionsql}) hl3
+            ON hl4.machine_name = hl3.machine_name
+            AND hl4.major_version = hl3.major_version
+            AND hl4.minor_version = hl3.minor_version"
+        );
+    }
+
+    /**
+     * Get locally stored Content Type Cache. If machine name is provided
+     * it will only get the given content type from the cache
+     *
+     * @param null $machinename
+     *
+     * @return array|mixed|null|object Returns results from querying the database
+     * @throws \dml_exception
+     */
+    // @codingStandardsIgnoreLine
+    public function getContentTypeCache($machinename = null) {
+        global $DB;
+
+        if ($machinename) {
+            return $DB->get_record_sql(
+                "SELECT id, is_recommended
+                   FROM {hvp_libraries_hub_cache}
+                  WHERE machine_name = ?",
+                array($machinename)
+            );
+        }
+
+        return $DB->get_records("hvp_libraries_hub_cache");
+    }
+
+    /**
+     * Gets recently used libraries for the current author
+     *
+     * @return array machine names. The first element in the array is the
+     * most recently used.
+     */
+    // @codingStandardsIgnoreLine
+    public function getAuthorsRecentlyUsedLibraries() {
+        global $DB;
+        global $USER;
+        $recentlyused = array();
+
+        $results = $DB->get_records_sql(
+            "SELECT library_name, max(created_at) AS max_created_at
+            FROM {hvp_events}
+           WHERE type='content' AND sub_type = 'create' AND user_id = ?
+        GROUP BY library_name
+        ORDER BY max_created_at DESC", array($USER->id));
+
+        foreach ($results as $row) {
+            $recentlyused[] = $row->library_name;
+        }
+
+        return $recentlyused;
+    }
+
+    /**
+     * Checks if the provided token is valid for this endpoint
+     *
+     * @param string $token The token that will be validated for.
+     *
+     * @return bool True if successful validation
+     */
+    // @codingStandardsIgnoreLine
+    public function validateEditorToken($token) {
+        return \H5PCore::validToken('editorajax', $token);
+    }
+
+    /**
+     * Get translations for a language for a list of libraries
+     *
+     * @param array $libraries An array of libraries, in the form "<machineName> <majorVersion>.<minorVersion>
+     * @param string $language_code
+     *
+     * @return array
+     * @throws \dml_exception
+     */
+    public function getTranslations($libraries, $language_code) {
+        global $DB;
+
+        $translations = array();
+
+        foreach ($libraries as $library) {
+            $parsedLib = \H5PCore::libraryFromString($library);
+
+            $sql         = "
+                    SELECT language_json
+                    FROM {hvp_libraries} lib
+                      LEFT JOIN {hvp_libraries_languages} lang
+                    ON lib.id = lang.library_id
+                    WHERE lib.machine_name = :machine_name AND
+                      lib.major_version = :major_version AND
+                      lib.minor_version = :minor_version AND
+                      lang.language_code = :language_code";
+            $translation = $DB->get_field_sql($sql, array(
+                'machine_name'  => $parsedLib['machineName'],
+                'major_version' => $parsedLib['majorVersion'],
+                'minor_version' => $parsedLib['minorVersion'],
+                'language_code' => $language_code,
+            ));
+
+            if ($translation !== false) {
+                $translations[$library] = $translation;
+            }
+        }
+
+        return $translations;
+    }
+}

classes/editor_framework.php

@@ -0,0 +1,355 @@
+<?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/>.
+
+/**
+ * \mod_hvp\framework class
+ *
+ * @package    mod_hvp
+ * @copyright  2016 Joubel AS
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace mod_hvp;
+
+use H5peditorFile;
+
+defined('MOODLE_INTERNAL') || die();
+
+require_once(__DIR__ . '/../autoloader.php');
+
+/**
+ * Moodle's implementation of the H5P Editor framework interface.
+ * Makes it possible for the editor's core library to communicate with the
+ * database used by Moodle.
+ *
+ * @package    mod_hvp
+ * @copyright  2016 Joubel AS
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class editor_framework implements \H5peditorStorage {
+
+    /**
+     * Load language file(JSON) from database.
+     * This is used to translate the editor fields(title, description etc.)
+     *
+     * @param string $name The machine readable name of the library(content type)
+     * @param int $major Major part of version number
+     * @param int $minor Minor part of version number
+     * @param string $lang Language code
+     * @return string Translation in JSON format
+     */
+    // @codingStandardsIgnoreLine
+    public function getLanguage($name, $major, $minor, $lang) {
+        global $DB;
+
+        // Load translation field from DB.
+        return $DB->get_field_sql(
+            "SELECT hlt.language_json
+               FROM {hvp_libraries_languages} hlt
+               JOIN {hvp_libraries} hl ON hl.id = hlt.library_id
+              WHERE hl.machine_name = ?
+                AND hl.major_version = ?
+                AND hl.minor_version = ?
+                AND hlt.language_code = ?
+            ", array(
+                $name,
+                $major,
+                $minor,
+                $lang
+            )
+        );
+    }
+
+    /**
+     * "Callback" for mark the given file as a permanent file.
+     * Used when saving content that has new uploaded files.
+     *
+     * @param int $fileid
+     */
+    // @codingStandardsIgnoreLine
+    public function keepFile($fileid) {
+        global $DB;
+
+        // Remove from tmpfiles.
+        $DB->delete_records('hvp_tmpfiles', array(
+            'id' => $fileid
+        ));
+    }
+
+    /**
+     * Decides which content types the editor should have.
+     *
+     * Two usecases:
+     * 1. No input, will list all the available content types.
+     * 2. Libraries supported are specified, load additional data and verify
+     * that the content types are available. Used by e.g. the Presentation Tool
+     * Editor that already knows which content types are supported in its
+     * slides.
+     *
+     * @param array $libraries List of library names + version to load info for
+     * @return array List of all libraries loaded
+     */
+    // @codingStandardsIgnoreLine
+    public function getLibraries($libraries = null) {
+        global $DB;
+
+        $contextid = required_param('contextId', PARAM_RAW);
+        $superuser = has_capability('mod/hvp:userestrictedlibraries',
+            \context::instance_by_id($contextid));
+
+        if ($libraries !== null) {
+            // Get details for the specified libraries only.
+            $librarieswithdetails = array();
+            foreach ($libraries as $library) {
+                // Look for library.
+                $details = $DB->get_record_sql(
+                        "SELECT title,
+                                runnable,
+                                restricted,
+                                tutorial_url,
+                                metadata_settings
+                           FROM {hvp_libraries}
+                          WHERE machine_name = ?
+                            AND major_version = ?
+                            AND minor_version = ?
+                            AND semantics IS NOT NULL
+                        ", array(
+                            $library->name,
+                            $library->majorVersion,
+                            $library->minorVersion
+                        )
+                );
+                if ($details) {
+                    // Library found, add details to list.
+                    $library->tutorialUrl = $details->tutorial_url;
+                    $library->title = $details->title;
+                    $library->runnable = $details->runnable;
+                    $library->restricted = $superuser ? false : ($details->restricted === '1' ? true : false);
+                    $library->metadataSettings = json_decode($details->metadata_settings);
+                    $librarieswithdetails[] = $library;
+                }
+            }
+
+            // Done, return list with library details.
+            return $librarieswithdetails;
+        }
+
+        // Load all libraries.
+        $libraries = array();
+        $librariesresult = $DB->get_records_sql(
+                "SELECT id,
+                        machine_name AS name,
+                        title,
+                        major_version,
+                        minor_version,
+                        tutorial_url,
+                        restricted,
+                        metadata_settings
+                   FROM {hvp_libraries}
+                  WHERE runnable = 1
+                    AND semantics IS NOT NULL
+               ORDER BY title"
+        );
+        foreach ($librariesresult as $library) {
+            // Remove unique index.
+            unset($library->id);
+
+            // Convert snakes to camels.
+            $library->majorVersion = (int) $library->major_version;
+            unset($library->major_version);
+            $library->minorVersion = (int) $library->minor_version;
+            unset($library->minor_version);
+            if (!empty($library->tutorial_url)) {
+               $library->tutorialUrl = $library->tutorial_url;
+            }
+            unset($library->tutorial_url);
+
+            $library->metadataSettings = json_decode($library->metadata_settings);
+            unset($library->metadata_settings);
+
+            // Make sure we only display the newest version of a library.
+            foreach ($libraries as $key => $existinglibrary) {
+                if ($library->name === $existinglibrary->name) {
+                    // Found library with same name, check versions.
+                    if ( ( $library->majorVersion === $existinglibrary->majorVersion &&
+                           $library->minorVersion > $existinglibrary->minorVersion ) ||
+                         ( $library->majorVersion > $existinglibrary->majorVersion ) ) {
+                        // This is a newer version.
+                        $existinglibrary->isOld = true;
+                    } else {
+                        // This is an older version.
+                        $library->isOld = true;
+                    }
+                }
+            }
+
+            // Check to see if content type should be restricted.
+            $library->restricted = $superuser ? false : ($library->restricted === '1' ? true : false);
+
+            // Add new library.
+            $libraries[] = $library;
+        }
+        return $libraries;
+    }
+
+    /**
+     * Allow for other plugins to decide which styles and scripts are attached.
+     * This is useful for adding and/or modifing the functionality and look of
+     * the content types.
+     *
+     * @param array $files
+     *  List of files as objects with path and version as properties
+     * @param array $libraries
+     *  List of libraries indexed by machineName with objects as values. The objects
+     *  have majorVersion and minorVersion as properties.
+     */
+    // @codingStandardsIgnoreLine
+    public function alterLibraryFiles(&$files, $libraries) {
+        global $PAGE;
+
+        // Refactor dependency list.
+        $librarylist = array();
+        foreach ($libraries as $dependency) {
+            $librarylist[$dependency['machineName']] = array(
+                'majorVersion' => $dependency['majorVersion'],
+                'minorVersion' => $dependency['minorVersion']
+            );
+        }
+
+        $contextid = required_param('contextId', PARAM_INT);
+        $context   = \context::instance_by_id($contextid);
+
+        $PAGE->set_context($context);
+        $renderer = $PAGE->get_renderer('mod_hvp');
+
+        $embedtype = 'editor';
+        $renderer->hvp_alter_scripts($files['scripts'], $librarylist, $embedtype);
+        $renderer->hvp_alter_styles($files['styles'], $librarylist, $embedtype);
+    }
+
+    /**
+     * Saves a file or moves it temporarily. This is often necessary in order to
+     * validate and store uploaded or fetched H5Ps.
+     *
+     * @param string $data Uri of data that should be saved as a temporary file
+     * @param boolean $movefile Can be set to TRUE to move the data instead of saving it
+     *
+     * @return bool|object Returns false if saving failed or an object with path
+     * of the directory and file that is temporarily saved
+     */
+    // @codingStandardsIgnoreLine
+    public static function saveFileTemporarily($data, $movefile = false) {
+        global $CFG;
+
+        // Generate local tmp file path.
+        $uniqueh5pid = uniqid('hvp-');
+        $filename = $uniqueh5pid . '.h5p';
+        $directory = $CFG->tempdir . DIRECTORY_SEPARATOR . $uniqueh5pid;
+        $filepath = $directory . DIRECTORY_SEPARATOR . $filename;
+
+        if (!is_dir($directory)) {
+            mkdir($directory, 0777, true);
+        }
+
+        // Move file or save data to new file so core can validate H5P.
+        if ($movefile) {
+            move_uploaded_file($data, $filepath);
+        } else {
+            file_put_contents($filepath, $data);
+        }
+
+        // Add folder and file paths to H5P Core.
+        $interface = framework::instance('interface');
+        $interface->getUploadedH5pFolderPath($directory);
+        $interface->getUploadedH5pPath($directory . DIRECTORY_SEPARATOR . $filename);
+
+        return (object) array(
+            'dir' => $directory,
+            'fileName' => $filename
+        );
+    }
+
+    /**
+     * Marks a file for later cleanup, useful when files are not instantly cleaned
+     * up. E.g. for files that are uploaded through the editor.
+     *
+     * @param int $file Id of file that should be cleaned up
+     * @param int|null $contentid Content id of file
+     */
+    // @codingStandardsIgnoreLine
+    public static function markFileForCleanup($file, $contentid = null) {
+        global $DB;
+
+        // Let H5P Core clean up.
+        if ($contentid) {
+            return;
+        }
+
+        // Track temporary files for later cleanup.
+        $DB->insert_record_raw('hvp_tmpfiles', array(
+            'id' => $file
+        ), false, false, true);
+    }
+
+    /**
+     * Clean up temporary files
+     *
+     * @param string $filepath Path to file or directory
+     */
+    // @codingStandardsIgnoreLine
+    public static function removeTemporarilySavedFiles($filepath) {
+        if (is_dir($filepath)) {
+            \H5PCore::deleteFileTree($filepath);
+        } else {
+            @unlink($filepath);
+        }
+    }
+
+    /**
+     * Load a list of available language codes from the database.
+     *
+     * @param string $machineName The machine readable name of the library(content type)
+     * @param int $majorVersion Major part of version number
+     * @param int $minorVersion Minor part of version number
+     *
+     * @return array List of possible language codes
+     * @throws \dml_exception
+     */
+    public function getAvailableLanguages($machineName, $majorVersion, $minorVersion) {
+        global $DB;
+
+        $sql = "SELECT language_code
+                  FROM {hvp_libraries_languages} hlt
+                  JOIN {hvp_libraries} hl
+                    ON hl.id = hlt.library_id
+                 WHERE hl.machine_name = :machinename
+                   AND hl.major_version = :major
+                   AND hl.minor_version = :minor";
+
+        $results = $DB->get_records_sql($sql, array(
+            'machinename' => $machineName,
+            'major'       => $majorVersion,
+            'minor'       => $minorVersion,
+        ));
+
+        $codes = array('en'); // Semantics is 'en' by default.
+        foreach ($results as $result) {
+            $codes[] = $result->language_code;
+        }
+
+        return $codes;
+    }
+}

classes/event.php

@@ -0,0 +1,98 @@
+<?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/>.
+
+/**
+ * The mod_hvp event logger, makes it easy to track events throughout
+ * the H5P system.
+ *
+ * @package    mod_hvp
+ * @copyright  2016 Joubel AS
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace mod_hvp;
+defined('MOODLE_INTERNAL') || die();
+
+class event extends \H5PEventBase {
+    private $user;
+
+     /**
+      * @inheritdoc
+      */
+    public function __construct($type, $subtype = null, $contentid = null,
+        $contenttitle = null, $libraryname = null, $libraryversion = null) {
+        global $USER;
+
+        // Track the who initiated the event.
+        $this->user = $USER->id;
+
+        parent::__construct($type, $subtype, $contentid, $contenttitle, $libraryname, $libraryversion);
+    }
+
+    /**
+     * Store the event.
+     *
+     * @return int Event ID
+     */
+    protected function save() {
+        global $DB;
+
+        // Get data in array format without null values.
+        $data = $this->getDataArray();
+
+        // Add user.
+        $data['user_id'] = $this->user;
+
+        return $DB->insert_record('hvp_events', $data);
+    }
+
+    /**
+     * @inheritdoc
+     */
+    // @codingStandardsIgnoreLine
+    protected function saveStats() {
+        global $DB;
+        $type = $this->type . ' ' . $this->sub_type;
+
+        // Grab current counter to check if it exists.
+        $id = $DB->get_field_sql(
+            "SELECT id
+               FROM {hvp_counters}
+              WHERE type = ?
+                AND library_name = ?
+                AND library_version = ?",
+            array($type, $this->library_name, $this->library_version)
+        );
+
+        if ($id === false) {
+            // No counter found, insert new one.
+            $DB->insert_record('hvp_counters', array(
+                'type' => $type,
+                'library_name' => $this->library_name,
+                'library_version' => $this->library_version,
+                'num' => 1
+            ));
+        } else {
+            // Update num+1.
+            $DB->execute(
+                "UPDATE {hvp_counters}
+                    SET num = num + 1
+                  WHERE id = ?",
+                array($id)
+            );
+        }
+    }
+}

classes/event/attempt_submitted.php

@@ -0,0 +1,46 @@
+<?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/>.
+
+/**
+ * Attempt submitted event
+ *
+ * @package    mod_hvp
+ * @copyright  2020 Joubel AS <contact@joubel.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace mod_hvp\event;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * The mod_hvp instance list viewed event class.
+ *
+ * @package    mod_hvp
+ * @copyright  @copyright  2016 Joubel AS <contact@joubel.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class attempt_submitted extends \core\event\base
+{
+
+    /**
+     * @inheritDoc
+     */
+    protected function init() {
+        $this->data['crud'] = 'u';
+        $this->data['edulevel'] = self::LEVEL_PARTICIPATING;
+    }
+}

classes/event/course_module_instance_list_viewed.php

@@ -0,0 +1,39 @@
+<?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/>.
+
+/**
+ * The mod_hvp instance list viewed event.
+ *
+ * @package    mod_hvp
+ * @copyright  @copyright  2016 Joubel AS <contact@joubel.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace mod_hvp\event;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * The mod_hvp instance list viewed event class.
+ *
+ * @package    mod_hvp
+ * @copyright  @copyright  2016 Joubel AS <contact@joubel.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class course_module_instance_list_viewed extends \core\event\course_module_instance_list_viewed
+{
+    // No code required here as the parent class handles it all.
+}

classes/event/course_module_viewed.php

@@ -0,0 +1,47 @@
+<?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/>.
+
+/**
+ * The mod_hvp course module viewed event.
+ *
+ * @package    mod_hvp
+ * @copyright  @copyright  2016 Joubel AS <contact@joubel.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace mod_hvp\event;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * The mod_hvp course module viewed event class.
+ *
+ * @package    mod_hvp
+ * @copyright  @copyright  2016 Joubel AS <contact@joubel.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class course_module_viewed extends \core\event\course_module_viewed
+{
+
+    /**
+     * Set basic properties for the event.
+     */
+    protected function init() {
+        $this->data['objecttable'] = 'hvp';
+        $this->data['crud'] = 'r';
+        $this->data['edulevel'] = self::LEVEL_PARTICIPATING;
+    }
+}

classes/file_storage.php

@@ -0,0 +1,912 @@
+<?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/>.
+
+/**
+ * The mod_hvp file storage
+ *
+ * @package    mod_hvp
+ * @copyright  2016 Joubel AS
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace mod_hvp;
+defined('MOODLE_INTERNAL') || die();
+require_once($CFG->dirroot . '/mod/hvp/library/h5p-file-storage.interface.php');
+
+/**
+ * The mod_hvp file storage class.
+ *
+ * @package    mod_hvp
+ * @since      Moodle 2.7
+ * @copyright  2016 Joubel AS
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ *
+ * @SuppressWarnings(PHPMD.TooManyPublicMethods)
+ * @SuppressWarnings(PHPMD.ExcessiveClassComplexity)
+ */
+class file_storage implements \H5PFileStorage {
+
+    /**
+     * Store the library folder.
+     *
+     * @param array $library
+     *  Library properties
+     */
+    // @codingStandardsIgnoreLine
+    public function saveLibrary($library) {
+        // Libraries are stored in a system context.
+        $context = \context_system::instance();
+        $options = array(
+            'contextid' => $context->id,
+            'component' => 'mod_hvp',
+            'filearea' => 'libraries',
+            'itemid' => 0,
+            'filepath' => '/' . \H5PCore::libraryToFolderName($library) . '/',
+        );
+
+        // Remove any old existing library files.
+        self::deleteFileTree($context->id, $options['filearea'], $options['filepath']);
+
+        // Move library folder.
+        self::readFileTree($library['uploadDirectory'], $options);
+    }
+
+    /**
+     * Store the content folder.
+     *
+     * @param string $source
+     *  Path on file system to content directory.
+     * @param array $content
+     *  Content properties
+     */
+    // @codingStandardsIgnoreLine
+    public function saveContent($source, $content) {
+        // Remove any old content.
+        $this->deleteContent($content);
+
+        // Contents are stored in a course context.
+        $context = \context_module::instance($content['coursemodule']);
+        $options = array(
+            'contextid' => $context->id,
+            'component' => 'mod_hvp',
+            'filearea' => 'content',
+            'itemid' => $content['id'],
+            'filepath' => '/',
+        );
+
+        // Move content folder.
+        self::readFileTree($source, $options);
+    }
+
+    /**
+     * Remove content folder.
+     *
+     * @param array $content
+     *  Content properties
+     */
+    // @codingStandardsIgnoreLine
+    public function deleteContent($content) {
+        $context = \context_module::instance($content['coursemodule']);
+        self::deleteFileTree($context->id, 'content', '/', $content['id']);
+    }
+
+    /**
+     * @inheritdoc
+     */
+    // @codingStandardsIgnoreLine
+    public function cloneContent($id, $newid) {
+        // Not implemented in Moodle.
+    }
+
+    /**
+     * Get path to a new unique tmp folder.
+     *
+     * @return string Path
+     */
+    // @codingStandardsIgnoreLine
+    public function getTmpPath() {
+        global $CFG;
+
+        return $CFG->tempdir . uniqid('/hvp-');
+    }
+
+    /**
+     * Fetch content folder and save in target directory.
+     *
+     * @param int $id
+     *  Content identifier
+     * @param string $target
+     *  Where the content folder will be saved
+     */
+    // @codingStandardsIgnoreLine
+    public function exportContent($id, $target) {
+        $cm = \get_coursemodule_from_instance('hvp', $id);
+        $context = \context_module::instance($cm->id);
+        self::exportFileTree($target, $context->id, 'content', '/', $id);
+    }
+
+    /**
+     * Fetch library folder and save in target directory.
+     *
+     * @param array $library
+     *  Library properties
+     * @param string $target
+     *  Where the library folder will be saved
+     */
+    // @codingStandardsIgnoreLine
+    public function exportLibrary($library, $target) {
+        $folder = \H5PCore::libraryToFolderName($library);
+        $context = \context_system::instance();
+        self::exportFileTree("{$target}/{$folder}", $context->id, 'libraries', "/{$folder}/");
+    }
+
+    /**
+     * Save export in file system
+     *
+     * @param string $source
+     *  Path on file system to temporary export file.
+     * @param string $filename
+     *  Name of export file.
+     */
+    // @codingStandardsIgnoreLine
+    public function saveExport($source, $filename) {
+        global $COURSE;
+
+        // Remove old export.
+        $this->deleteExport($filename);
+
+        // Create record.
+        $context = \context_course::instance($COURSE->id);
+        $record = array(
+            'contextid' => $context->id,
+            'component' => 'mod_hvp',
+            'filearea' => 'exports',
+            'itemid' => 0,
+            'filepath' => '/',
+            'filename' => $filename
+        );
+
+        // Store new export.
+        $fs = get_file_storage();
+        $fs->create_file_from_pathname($record, $source);
+    }
+
+    /**
+     * Get file object for given export file.
+     *
+     * @param string $filename
+     * @return stdClass Moodle file object
+     */
+    // @codingStandardsIgnoreLine
+    private function getExportFile($filename) {
+        global $COURSE;
+        $context = \context_course::instance($COURSE->id);
+
+        // Check if file exists.
+        $fs = get_file_storage();
+        return $fs->get_file($context->id, 'mod_hvp', 'exports', 0, '/', $filename);
+    }
+
+    /**
+     * Removes given export file
+     *
+     * @param string $filename
+     */
+    // @codingStandardsIgnoreLine
+    public function deleteExport($filename) {
+        $file = $this->getExportFile($filename);
+        if ($file) {
+            // Remove old export.
+            $file->delete();
+        }
+    }
+
+    /**
+     * Check if the given export file exists
+     *
+     * @param string $filename
+     * @return boolean
+     */
+    // @codingStandardsIgnoreLine
+    public function hasExport($filename) {
+        return !!$this->getExportFile($filename);
+    }
+
+    /**
+     * Will concatenate all JavaScrips and Stylesheets into two files in order
+     * to improve page performance.
+     *
+     * @param array $files
+     *  A set of all the assets required for content to display
+     * @param string $key
+     *  Hashed key for cached asset
+     */
+    // @codingStandardsIgnoreLine
+    public function cacheAssets(&$files, $key) {
+        $context = \context_system::instance();
+        $fs = get_file_storage();
+
+        foreach ($files as $type => $assets) {
+            if (empty($assets)) {
+                continue;
+            }
+
+            $content = '';
+            foreach ($assets as $asset) {
+                // Find location of asset.
+                $location = array();
+                preg_match('/^\/(libraries|development)(.+\/)([^\/]+)$/', $asset->path, $location);
+
+                // Locate file.
+                $file = $fs->get_file($context->id, 'mod_hvp', $location[1], 0, $location[2], $location[3]);
+
+                // Get file content and concatenate.
+                if ($type === 'scripts') {
+                    $content .= $file->get_content() . ";\n";
+                } else {
+                    // Rewrite relative URLs used inside stylesheets.
+                    $content .= preg_replace_callback(
+                            '/url\([\'"]?([^"\')]+)[\'"]?\)/i',
+                            function ($matches) use ($location) {
+                                if (preg_match("/^(data:|([a-z0-9]+:)?\/)/i", $matches[1]) === 1) {
+                                    return $matches[0]; // Not relative, skip.
+                                }
+                                return 'url("../' . $location[1] . $location[2] . $matches[1] . '")';
+                            },
+                            $file->get_content()) . "\n";
+                }
+            }
+
+            // Create new file for cached assets.
+            $ext = ($type === 'scripts' ? 'js' : 'css');
+            $fileinfo = array(
+                'contextid' => $context->id,
+                'component' => 'mod_hvp',
+                'filearea' => 'cachedassets',
+                'itemid' => 0,
+                'filepath' => '/',
+                'filename' => "{$key}.{$ext}"
+            );
+
+            // Store concatenated content.
+            $fs->create_file_from_string($fileinfo, $content);
+            $files[$type] = array((object) array(
+                'path' => "/cachedassets/{$key}.{$ext}",
+                'version' => ''
+            ));
+        }
+    }
+
+    /**
+     * Will check if there are cache assets available for content.
+     *
+     * @param string $key
+     *  Hashed key for cached asset
+     * @return array
+     */
+    // @codingStandardsIgnoreLine
+    public function getCachedAssets($key) {
+        $context = \context_system::instance();
+        $fs = get_file_storage();
+
+        $files = array();
+
+        $js = $fs->get_file($context->id, 'mod_hvp', 'cachedassets', 0, '/', "{$key}.js");
+        if ($js) {
+            $files['scripts'] = array((object) array(
+                'path' => "/cachedassets/{$key}.js",
+                'version' => ''
+            ));
+        }
+
+        $css = $fs->get_file($context->id, 'mod_hvp', 'cachedassets', 0, '/', "{$key}.css");
+        if ($css) {
+            $files['styles'] = array((object) array(
+                'path' => "/cachedassets/{$key}.css",
+                'version' => ''
+            ));
+        }
+
+        return empty($files) ? null : $files;
+    }
+
+    /**
+     * Remove the aggregated cache files.
+     *
+     * @param array $keys
+     *   The hash keys of removed files
+     */
+    // @codingStandardsIgnoreLine
+    public function deleteCachedAssets($keys) {
+        $context = \context_system::instance();
+        $fs = get_file_storage();
+
+        foreach ($keys as $hash) {
+            foreach (array('js', 'css') as $type) {
+                $cachedasset = $fs->get_file($context->id, 'mod_hvp', 'cachedassets', 0, '/', "{$hash}.{$type}");
+                if ($cachedasset) {
+                    $cachedasset->delete();
+                }
+            }
+        }
+    }
+
+    /**
+     * @inheritdoc
+     */
+    // @codingStandardsIgnoreLine
+    public function getContent($filepath) {
+        // Grab context and file storage.
+        $context = \context_system::instance();
+        $fs      = get_file_storage();
+
+        // Find location of file.
+        $location = [];
+        preg_match('/^\/(libraries|development|cachedassets)(.*\/)([^\/]+)$/', $filepath, $location);
+
+        // Locate file.
+        $file = $fs->get_file($context->id, 'mod_hvp', $location[1], 0, $location[2], $location[3]);
+        if (!$file) {
+            throw new \file_serving_exception(
+                'Could not retrieve the requested file, check your file permissions.'
+            );
+        }
+
+        // Return content.
+        return $file->get_content();
+    }
+
+    /**
+     * Save files uploaded through the editor.
+     *
+     * @param \H5peditorFile $file
+     * @param int $contentid
+     * @param \stdClass $contextid Course Context ID
+     *
+     * @return int
+     */
+    // @codingStandardsIgnoreLine
+    public function saveFile($file, $contentid, $contextid = null) {
+        global $CFG;
+
+        if ($contentid !== 0) {
+            // Grab cm context.
+            $cm = \get_coursemodule_from_instance('hvp', $contentid);
+            $context = \context_module::instance($cm->id);
+            $contextid = $context->id;
+        } else if ($contextid === null) {
+            // Check for context id in params.
+            $contextid = optional_param('contextId', null, PARAM_INT);
+            $context = \context::instance_by_id($contextid);
+        }
+
+        if (!$context) {
+            \H5PCore::ajaxError(get_string('invalidcontext', 'error'));
+            return;
+        }
+
+        $maxsize = get_max_upload_file_size($CFG->maxbytes);
+        // Check size of each uploaded file and scan for viruses.
+        foreach ($_FILES as $uploadedfile) {
+            $filename = clean_param($uploadedfile['name'], PARAM_FILE);
+
+            if (!has_capability('moodle/course:ignorefilesizelimits', $context)) {
+                if ($uploadedfile['size'] > $maxsize) {
+                    \H5PCore::ajaxError(get_string('maxbytesfile', 'error', ['file' => $filename, 'size' => display_size($maxsize)]));
+                    return;
+                }
+            }
+            \core\antivirus\manager::scan_file($uploadedfile['tmp_name'], $filename, true);
+        }
+
+        // Files not yet related to any activities are stored in a course context
+        // These are temporary files and should not be part of backups.
+
+        $record = array(
+            'contextid' => $contextid,
+            'component' => 'mod_hvp',
+            'filearea' => $contentid === 0 ? 'editor' : 'content',
+            'itemid' => $contentid,
+            'filepath' => '/' . $file->getType() . 's/',
+            'filename' => $file->getName()
+        );
+        $fs = get_file_storage();
+        $storedfile = $fs->create_file_from_pathname($record, $_FILES['file']['tmp_name']);
+
+        return $storedfile->get_id();
+    }
+
+    /**
+     * Copy a file from another content or editor tmp dir.
+     * Used when copy pasting content in H5P.
+     *
+     * @param string $file path + name
+     * @param string|int $fromid Content ID or 'editor' string
+     * @param stdClass $tocontent Target Content
+     */
+    // @codingStandardsIgnoreLine
+    public function cloneContentFile($file, $fromid, $tocontent) {
+
+        // Determine source file area and item id.
+        if ($fromid === 'editor') {
+            $sourcefilearea = 'editor';
+            if (empty($tocontent->instance)) {
+                $sourceitemid = \context_course::instance($tocontent->course);
+            } else {
+                $sourceitemid = \context_module::instance($tocontent->coursemodule);
+            }
+        } else {
+            $sourcefilearea = 'content';
+            $sourceitemid   = $fromid;
+        };
+
+        // Check to see if source exist.
+        $sourcefile = $this->getFile($sourcefilearea, $sourceitemid, $file);
+        if ($sourcefile === false) {
+            return; // Nothing to copy from.
+        }
+
+        // Check to make sure source doesn't exist already.
+        if ($this->getFile('content', $tocontent, $file) !== false) {
+            return; // File exists, no need to copy.
+        }
+
+        // Grab context for CM.
+        $context = \context_module::instance($tocontent->coursemodule);
+
+        // Create new file record.
+        $record = [
+            'contextid' => $context->id,
+            'component' => 'mod_hvp',
+            'filearea'  => 'content',
+            'itemid'    => $tocontent->id,
+            'filepath'  => $this->getFilepath($file),
+            'filename'  => $this->getFilename($file),
+        ];
+        $fs = get_file_storage();
+        $fs->create_file_from_storedfile($record, $sourcefile);
+    }
+
+    /**
+     * Checks to see if content has the given file.
+     * Used when saving content.
+     *
+     * @param string $file path + name
+     * @param stdClass $content
+     * @return string|int File ID or null if not found
+     */
+    // @codingStandardsIgnoreLine
+    public function getContentFile($file, $content) {
+        $file = $this->getFile('content', $content, $file);
+        return ($file === false ? null : $file->get_id());
+    }
+
+    /**
+     * Remove content files that are no longer used.
+     * Used when saving content.
+     *
+     * @param string $file path + name
+     * @param stdClass $content
+     */
+    // @codingStandardsIgnoreLine
+    public function removeContentFile($file, $content) {
+        $file = $this->getFile('content', $content, $file);
+        if ($file !== false) {
+            $file->delete();
+        }
+    }
+
+    /**
+     * Copies files from tmp folder to Moodle storage.
+     *
+     * @param string $source
+     *  Path to source directory
+     * @param array $options
+     *  For Moodle's file record
+     * @throws \Exception Unable to copy
+     */
+    // @codingStandardsIgnoreLine
+    private static function readFileTree($source, $options) {
+        $dir = opendir($source);
+        if ($dir === false) {
+            trigger_error('Unable to open directory ' . $source, E_USER_WARNING);
+            throw new \Exception('unabletocopy');
+        }
+
+        while (false !== ($file = readdir($dir))) {
+            if (($file != '.') && ($file != '..') && $file != '.git' && $file != '.gitignore') {
+                if (is_dir($source . DIRECTORY_SEPARATOR . $file)) {
+                    $suboptions = $options;
+                    $suboptions['filepath'] .= $file . '/';
+                    self::readFileTree($source . '/' . $file, $suboptions);
+                } else {
+                    $record = $options;
+                    $record['filename'] = $file;
+                    $fs = get_file_storage();
+                    $fs->create_file_from_pathname($record, $source . '/' . $file);
+                }
+            }
+        }
+        closedir($dir);
+    }
+
+    /**
+     * Copies files from Moodle storage to temporary folder.
+     *
+     * @param string $target
+     *  Path to temporary folder
+     * @param int $contextid
+     *  Moodle context where the files are found
+     * @param string $filearea
+     *  Moodle file area
+     * @param string $filepath
+     *  Moodle file path
+     * @param int $itemid
+     *  Optional Moodle item ID
+     */
+    // @codingStandardsIgnoreLine
+    private static function exportFileTree($target, $contextid, $filearea, $filepath, $itemid = 0) {
+        // Make sure target folder exists.
+        if (!file_exists($target)) {
+            mkdir($target, 0777, true);
+        }
+
+        // Read source files.
+        $fs = get_file_storage();
+        $files = $fs->get_directory_files($contextid, 'mod_hvp', $filearea, $itemid, $filepath, true);
+
+        foreach ($files as $file) {
+            // Correct target path for file.
+            $path = $target . str_replace($filepath, '/', $file->get_filepath());
+
+            if ($file->is_directory()) {
+                // Create directory.
+                $path = rtrim($path, '/');
+                if (!file_exists($path)) {
+                    mkdir($path, 0777, true);
+                }
+            } else {
+                // Copy file.
+                $file->copy_content_to($path . $file->get_filename());
+            }
+        }
+    }
+
+    /**
+     * Recursive removal of given filepath.
+     *
+     * @param int $contextid
+     * @param string $filearea
+     * @param string $filepath
+     * @param int $itemid
+     */
+    // @codingStandardsIgnoreLine
+    private static function deleteFileTree($contextid, $filearea, $filepath, $itemid = 0) {
+        $fs = get_file_storage();
+        if ($filepath === '/') {
+            // Remove complete file area.
+            $fs->delete_area_files($contextid, 'mod_hvp', $filearea, $itemid);
+            return;
+        }
+
+        // Look up files and remove.
+        $files = $fs->get_directory_files($contextid, 'mod_hvp', $filearea, $itemid, $filepath, true);
+        foreach ($files as $file) {
+            $file->delete();
+        }
+
+        // Remove root dir.
+        $file = $fs->get_file($contextid, 'mod_hvp', $filearea, $itemid, $filepath, '.');
+        if ($file) {
+            $file->delete();
+        }
+    }
+
+    /**
+     * Help make it easy to load content files.
+     *
+     * @param string $filearea
+     * @param int|object $itemid
+     * @param string $file path + name
+     *
+     * @return \stored_file|bool
+     */
+    // @codingStandardsIgnoreLine
+    private function getFile($filearea, $itemid, $file) {
+        if ($filearea === 'editor') {
+            // Itemid is actually cm or course context.
+            $context = $itemid;
+            $itemid = 0;
+        } else if (is_object($itemid)) {
+            // Grab CM context from item.
+            $context = \context_module::instance($itemid->coursemodule);
+            $itemid = $itemid->id;
+        } else {
+            // Use item ID to find CM context.
+            $cm = \get_coursemodule_from_instance('hvp', $itemid);
+            $context = \context_module::instance($cm->id);
+        }
+
+        // Load file.
+        $fs = get_file_storage();
+        return $fs->get_file($context->id, 'mod_hvp', $filearea, $itemid, $this->getFilepath($file), $this->getFilename($file));
+    }
+
+    /**
+     * Extract Moodle compatible filepath
+     *
+     * @param string $file
+     * @return string With slashes
+     */
+    // @codingStandardsIgnoreLine
+    private function getFilepath($file) {
+        return '/' . dirname($file) . '/';
+    }
+
+    /**
+     * Extract filename from filepath string
+     *
+     * @param string $file
+     * @return string Without slashes
+     */
+    // @codingStandardsIgnoreLine
+    private function getFilename($file) {
+        return basename($file);
+    }
+
+    /**
+     * Checks if a file exists
+     *
+     * @method fileExists
+     * @param  string     $filearea [description]
+     * @param  string     $filepath [description]
+     * @param  string     $filename [description]
+     * @return boolean
+     */
+    // @codingStandardsIgnoreLine
+    public static function fileExists($contextid, $filearea, $filepath, $filename) {
+        // Check if file exists.
+        $fs = get_file_storage();
+        return ($fs->get_file($contextid, 'mod_hvp', $filearea, 0, $filepath, $filename) !== false);
+    }
+
+    /**
+     * Check if server setup has write permission to
+     * the required folders
+     *
+     * @return bool true if server has the proper write access
+     */
+    // @codingStandardsIgnoreLine
+    public function hasWriteAccess() {
+        global $CFG;
+
+        if (!is_dir($CFG->dataroot)) {
+            trigger_error('Path is not a directory ' . $CFG->dataroot, E_USER_WARNING);
+            return false;
+        }
+
+        if (!is_writable($CFG->dataroot)) {
+            trigger_error('Unable to write to ' . $CFG->dataroot . ' – check directory permissions –', E_USER_WARNING);
+            return false;
+        }
+
+        return true;
+    }
+
+    /**
+     * Copy a content from one directory to another. Defaults to cloning
+     * content from the current temporary upload folder to the editor path.
+     *
+     * @param string $source path to source directory
+     * @param string $contentid path of target directory. Defaults to editor path
+     *
+     * @return object|null Object containing h5p json and content json data
+     */
+    // @codingStandardsIgnoreLine
+    public function moveContentDirectory($source, $contentid = null) {
+        if ($source === null) {
+            return null;
+        }
+
+        // Default to 0 (editor).
+        if (!isset($contentid)) {
+            $contentid = 0;
+        }
+
+        // Find content context.
+        if ($contentid > 0) {
+            // Grab cm context.
+            $cm = \get_coursemodule_from_instance('hvp', $contentid);
+            $context = \context_module::instance($cm->id);
+            $contextid = $context->id;
+        }
+
+        // Get context from parameters.
+        if (!isset($contextid)) {
+            $contextid = required_param('contextId', PARAM_INT);
+        }
+
+        // Get h5p and content json.
+        $contentsource = $source . DIRECTORY_SEPARATOR . 'content';
+
+        // Move all temporary content files to editor.
+        $contentfiles = array_diff(scandir($contentsource), array('.', '..', 'content.json'));
+        foreach ($contentfiles as $file) {
+            if (is_dir("{$contentsource}/{$file}")) {
+                self::moveFileTree("{$contentsource}/{$file}", $contextid, $contentid);
+            } else {
+                self::moveFile("{$contentsource}/{$file}", $contextid, $contentid);
+            }
+        }
+
+        // TODO: Return list of all files so they can be marked as temporary. JI-366.
+    }
+
+    /**
+     * Move a single file to editor
+     *
+     * @param string $sourcefile Path to source fil
+     * @param int $contextid Id of context
+     * @param int $contentid Id of content, 0 if editor
+     */
+    // @codingStandardsIgnoreLine
+    private static function moveFile($sourcefile, $contextid, $contentid) {
+        $fs = get_file_storage();
+
+        $pathparts = pathinfo($sourcefile);
+        $filename  = $pathparts['basename'];
+        $filepath  = $pathparts['dirname'];
+        $foldername = basename($filepath);
+
+        if ($contentid > 0) {
+            // Create file record for content.
+            $record = array(
+                'contextid' => $contextid,
+                'component' => 'mod_hvp',
+                'filearea' => $contentid > 0 ? 'content' : 'editor',
+                'itemid' => $contentid,
+                'filepath' => '/' . $foldername . '/',
+                'filename' => $filename
+            );
+        } else {
+            // Create file record for editor.
+            $record = array(
+                'contextid' => $contextid,
+                'component' => 'mod_hvp',
+                'filearea' => 'editor',
+                'itemid' => 0,
+                'filepath' => '/' . $foldername . '/',
+                'filename' => $filename
+            );
+        }
+
+        $sourcedata = file_get_contents($sourcefile);
+
+        // Check if file already exists.
+        $fileexists = $fs->file_exists($record['contextid'], 'mod_hvp',
+            $record['filearea'], $record['itemid'], $record['filepath'],
+            $record['filename']
+        );
+
+        if ($fileexists) {
+            // Delete it to make sure that it is replaced with correct content.
+            $file = $fs->get_file($record['contextid'], 'mod_hvp',
+                $record['filearea'], $record['itemid'], $record['filepath'],
+                $record['filename']
+            );
+            if ($file) {
+                $file->delete();
+            }
+        }
+
+        $fs->create_file_from_string($record, $sourcedata);
+    }
+
+    /**
+     * Move a complete file tree to the editor
+     *
+     * @param string $sourcefiletree Path of file tree that should be moved
+     * @param int $contextid Id of context
+     * @param int $contentid Id of content, 0 for editor
+     *
+     * @throws \Exception
+     */
+    // @codingStandardsIgnoreLine
+    private static function moveFileTree($sourcefiletree, $contextid, $contentid) {
+        $dir = opendir($sourcefiletree);
+        if ($dir === false) {
+            trigger_error('Unable to open directory ' . $sourcefiletree, E_USER_WARNING);
+            throw new \Exception('unabletocopy');
+        }
+
+        while (false !== ($file = readdir($dir))) {
+            if (($file != '.') && ($file != '..') && $file != '.git' && $file != '.gitignore') {
+                if (is_dir("{$sourcefiletree}/{$file}")) {
+                    self::moveFileTree("{$sourcefiletree}/{$file}", $contextid, $contentid);
+                } else {
+                    self::moveFile("{$sourcefiletree}/{$file}", $contextid, $contentid);
+                }
+            }
+        }
+        closedir($dir);
+    }
+
+    /**
+     * Check if the library has a presave.js in the root folder
+     *
+     * @param string $libraryname
+     * @param string $developmentpath
+     *
+     * @return bool
+     */
+    // @codingStandardsIgnoreLine
+    public function hasPresave($libraryname, $developmentpath = null) {
+        // TODO: Implement.
+        return false;
+    }
+
+    /**
+     * Check if upgrades script exist for library.
+     *
+     * @param string $machineName
+     * @param int $majorVersion
+     * @param int $minorVersion
+     * @return string Relative path
+     */
+    // @codingStandardsIgnoreLine
+    public function getUpgradeScript($machinename, $majorversion, $minorversion) {
+        $context = \context_system::instance();
+        $fs = get_file_storage();
+        $area = 'libraries';
+        $path = "/{$machinename}-{$majorversion}.{$minorversion}/";
+        $file = 'upgrades.js';
+        if ($fs->get_file($context->id, 'mod_hvp', $area, 0, $path, $file)) {
+            return "/{$area}{$path}{$file}";
+        } else {
+            return null;
+        }
+    }
+
+    /**
+     * Store the given stream into the given file.
+     *
+     * @param string $path
+     * @param string $file
+     * @param resource $stream
+     *
+     * @return bool
+     */
+    // @codingStandardsIgnoreLine
+    public function saveFileFromZip($path, $file, $stream) {
+        $filepath = $path . '/' . $file;
+
+        // Make sure the directory exists first.
+        $matches = array();
+        preg_match('/(.+)\/[^\/]*$/', $filepath, $matches);
+        // Recursively make directories.
+        if (!file_exists($matches[1])) {
+            mkdir($matches[1], 0777, true);
+        }
+
+        // Store in local storage folder.
+        return file_put_contents($filepath, $stream);
+    }
+
+    // @codingStandardIgnoreLine
+    public function deleteLibrary($library) {
+        // TODO: Implement deleteLibrary() method.
+    }
+}

classes/mobile_auth.php

@@ -0,0 +1,123 @@
+<?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/>.
+
+/**
+ * Helpers for authenticating mobile users through tokens
+ *
+ * @package    mod_hvp
+ * @copyright  2019 Joubel AS
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace mod_hvp;
+
+defined('MOODLE_INTERNAL') || die();
+
+class mobile_auth {
+
+    const VALID_TIME = 60;
+
+    /**
+     * Generate embed auth token
+     *
+     * @param string $secret Secret phrase added to the hash
+     * @param int $validfor Time factor that determines how long the token is valid
+     *
+     * @return array Login token and secret
+     * @throws \Exception
+     */
+    public static function create_embed_auth_token($secret = null, $validfor = null) {
+        if (!$validfor) {
+            $validfor = self::get_time_factor();
+        }
+
+        if (empty($secret)) {
+            if (function_exists('random_bytes')) {
+                $secret = base64_encode(random_bytes(15));
+            } else if (function_exists('openssl_random_pseudo_bytes')) {
+                $secret = base64_encode(openssl_random_pseudo_bytes(15));
+            } else {
+                $secret = uniqid('', true);
+            }
+        }
+
+        return [
+            hash('md5', 'embed_auth' . $validfor . $secret),
+            $secret
+        ];
+    }
+
+    /**
+     * Validate embed auth token
+     *
+     * @param string $token
+     * @param string $secret
+     *
+     * @return bool True if valid token was supplied
+     * @throws \Exception
+     */
+    public static function validate_embed_auth_token($token, $secret) {
+        $timefactor = self::get_time_factor();
+        // Splitting into two halves and allowing both allows for fractions roundup in the time factor.
+        list($generatedtoken) = self::create_embed_auth_token($secret, $timefactor);
+        list($generatedtoken2) = self::create_embed_auth_token($secret, $timefactor - 1);
+        return $token === $generatedtoken || $token === $generatedtoken2;
+    }
+
+    /**
+     * Check if provided user_id and token are valid for authenticating the user
+     *
+     * @param string $userid
+     * @param string $token
+     *
+     * @return bool True if token and user_id is valid
+     * @throws \dml_exception
+     */
+    public static function has_valid_token($userid, $secret) {
+        global $DB;
+
+        if (!$userid || !$secret) {
+            return false;
+        }
+
+        $auth = $DB->get_record('hvp_auth', array(
+            'user_id' => $userid,
+        ));
+        if (!$auth) {
+            return false;
+        }
+
+        $isvalid = self::validate_embed_auth_token($auth->secret, $secret);
+
+        // Cleanup user's token when used.
+        if ($isvalid) {
+            $DB->delete_records('hvp_auth', array(
+                'user_id' => $userid
+            ));
+        }
+
+        return $isvalid;
+    }
+
+    /**
+     * Get time factor for how long the token is valid
+     *
+     * @return float
+     */
+    public static function get_time_factor() {
+        return ceil(time() / self::VALID_TIME);
+    }
+}

classes/output/mobile.php

@@ -0,0 +1,98 @@
+<?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/>.
+
+namespace mod_hvp\output;
+
+defined('MOODLE_INTERNAL') || die();
+
+use context_module;
+use mod_hvp;
+
+class mobile {
+
+    public static function mobile_course_view($args) {
+        global $DB, $CFG, $OUTPUT, $USER;
+
+        $cmid = $args['cmid'];
+        if (!$CFG->allowframembedding) {
+            $context = \context_system::instance();
+            if (has_capability('moodle/site:config', $context)) {
+                $template = 'mod_hvp/iframe_embedding_disabled';
+            } else {
+                $template = 'mod_hvp/contact_site_administrator';
+            }
+            return array(
+                'templates' => array(
+                    array(
+                        'id' => 'noiframeembedding',
+                        'html' => $OUTPUT->render_from_template($template, [])
+                    )
+                )
+            );
+        }
+
+        // Verify course context.
+        $cm = get_coursemodule_from_id('hvp', $cmid);
+        if (!$cm) {
+            print_error('invalidcoursemodule');
+        }
+        $course = $DB->get_record('course', array('id' => $cm->course));
+        if (!$course) {
+            print_error('coursemisconf');
+        }
+        require_course_login($course, false, $cm, true, true);
+        $context = context_module::instance($cm->id);
+        require_capability('mod/hvp:view', $context);
+
+        list($token, $secret) = mod_hvp\mobile_auth::create_embed_auth_token();
+
+        // Store secret in database.
+        $auth             = $DB->get_record('hvp_auth', array(
+            'user_id' => $USER->id,
+        ));
+        $currenttimestamp = time();
+        if ($auth) {
+            $DB->update_record('hvp_auth', array(
+                'id'         => $auth->id,
+                'secret'     => $token,
+                'created_at' => $currenttimestamp,
+            ));
+        } else {
+            $DB->insert_record('hvp_auth', array(
+                'user_id'    => $USER->id,
+                'secret'     => $token,
+                'created_at' => $currenttimestamp
+            ));
+        }
+
+        $data = [
+            'cmid'    => $cmid,
+            'wwwroot' => $CFG->wwwroot,
+            'user_id' => $USER->id,
+            'secret'  => urlencode($secret)
+        ];
+
+        return array(
+            'templates'  => array(
+                array(
+                    'id'   => 'main',
+                    'html' => $OUTPUT->render_from_template('mod_hvp/mobile_view_page', $data),
+                ),
+            ),
+            'javascript' => file_get_contents($CFG->dirroot . '/mod/hvp/library/js/h5p-resizer.js'),
+        );
+    }
+}

classes/privacy/provider.php

@@ -0,0 +1,519 @@
+<?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/>.
+
+/**
+ * Privacy Subsystem implementation for H5P.
+ */
+
+namespace mod_hvp\privacy;
+
+use \core_privacy\local\request\writer;
+use \core_privacy\local\request\contextlist;
+use \core_privacy\local\request\approved_contextlist;
+use \core_privacy\local\request\deletion_criteria;
+use \core_privacy\local\request\approved_userlist;
+use \core_privacy\local\request\userlist;
+use \core_privacy\local\metadata\collection;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Privacy Subsystem implementation for H5P.
+ */
+class provider implements
+    // This plugin has data.
+    \core_privacy\local\metadata\provider,
+    \core_privacy\local\request\core_userlist_provider,
+    // This plugin currently implements the original plugin_provider interface.
+    \core_privacy\local\request\plugin\provider {
+
+    use \core_privacy\local\legacy_polyfill;
+
+    /**
+     * Get the list of contexts that contain user information for the specified user.
+     *
+     * @param collection $items The collection to add metadata to.
+     *
+     * @return collection The array of metadata
+     */
+    public static function _get_metadata(collection $items) {
+        // Stores files using the Moodle file api.
+        $items->add_subsystem_link(
+            'core_files',
+            [],
+            'privacy:metadata:core_files'
+        );
+
+        // Stores grades using the Moodle gradebook api.
+        $items->add_subsystem_link(
+            'core_grades',
+            [],
+            'privacy:metadata:core_grades'
+        );
+
+        // Content user data table.
+        $items->add_database_table('hvp_content_user_data', [
+            'id'                       => 'privacy:metadata:hvp_content_user_data:id',
+            'user_id'                  => 'privacy:metadata:hvp_content_user_data:user_id',
+            'hvp_id'                   => 'privacy:metadata:hvp_content_user_data:hvp_id',
+            'sub_content_id'           => 'privacy:metadata:hvp_content_user_data:sub_content_id',
+            'data_id'                  => 'privacy:metadata:hvp_content_user_data:data_id',
+            'data'                     => 'privacy:metadata:hvp_content_user_data:data',
+            'preloaded'                => 'privacy:metadata:hvp_content_user_data:preloaded',
+            'delete_on_content_change' => 'privacy:metadata:hvp_content_user_data:delete_on_content_change',
+        ],
+            'privacy:metadata:hvp_content_user_data'
+        );
+
+        // Events table.
+        $items->add_database_table('hvp_events', [
+            'id'              => 'privacy:metadata:hvp_events:id',
+            'user_id'         => 'privacy:metadata:hvp_events:user_id',
+            'created_at'      => 'privacy:metadata:hvp_events:created_at',
+            'type'            => 'privacy:metadata:hvp_events:type',
+            'sub_type'        => 'privacy:metadata:hvp_events:sub_type',
+            'content_id'      => 'privacy:metadata:hvp_events:content_id',
+            'content_title'   => 'privacy:metadata:hvp_events:content_title',
+            'library_name'    => 'privacy:metadata:hvp_events:library_name',
+            'library_version' => 'privacy:metadata:hvp_events:library_version',
+        ], 'privacy:metadata:hvp_events');
+
+        // Xapi results table.
+        $items->add_database_table('hvp_xapi_results', [
+            'id'                        => 'privacy:metadata:hvp_xapi_results:id',
+            'content_id'                => 'privacy:metadata:hvp_xapi_results:content_id',
+            'user_id'                   => 'privacy:metadata:hvp_xapi_results:user_id',
+            'parent_id'                 => 'privacy:metadata:hvp_xapi_results:parent_id',
+            'interaction_type'          => 'privacy:metadata:hvp_xapi_results:interaction_type',
+            'description'               => 'privacy:metadata:hvp_xapi_results:description',
+            'correct_responses_pattern' => 'privacy:metadata:hvp_xapi_results:correct_responses_pattern',
+            'response'                  => 'privacy:metadata:hvp_xapi_results:response',
+            'additionals'               => 'privacy:metadata:hvp_xapi_results:additionals',
+            'raw_score'                 => 'privacy:metadata:hvp_xapi_results:raw_score',
+            'max_score'                 => 'privacy:metadata:hvp_xapi_results:max_score',
+        ], 'privacy:metadata:hvp_xapi_results');
+
+        return $items;
+    }
+
+    /**
+     * Get the list of contexts where the specified user has attempted a quiz, or been involved with manual marking
+     * and/or grading of a quiz.
+     *
+     * @param int $userid The user to search.
+     *
+     * @return contextlist $contextlist The contextlist containing the list of contexts used in this plugin.
+     */
+    public static function _get_contexts_for_userid($userid) {
+        $contextlist = new contextlist();
+
+        // Context for content_user_data.
+        $cudsql = "
+          SELECT
+            c.id
+          FROM {course_modules} cm
+            INNER JOIN {modules} m ON m.id = cm.module
+            INNER JOIN {context} c ON c.instanceid = cm.id
+            INNER JOIN {hvp} h ON h.id = cm.instance
+            INNER JOIN {hvp_content_user_data} d ON h.id = d.hvp_id
+          WHERE m.name = 'hvp'
+                AND c.contextlevel = :contextlevel
+                AND d.user_id = :userid
+        ";
+
+        $cudparams = array(
+            'contextlevel' => CONTEXT_MODULE,
+            'userid'       => $userid,
+        );
+
+        $contextlist->add_from_sql($cudsql, $cudparams);
+
+        // Context for xapi results.
+        $xapisql = "
+          SELECT
+            c.id
+          FROM {course_modules} cm
+            INNER JOIN {modules} m ON m.id = cm.module
+            INNER JOIN {context} c ON c.instanceid = cm.id
+            INNER JOIN {hvp} h ON h.id = cm.instance
+            INNER JOIN {hvp_xapi_results} x ON x.content_id = h.id
+          WHERE m.name = 'hvp'
+                AND c.contextlevel = :contextlevel
+                AND x.user_id = :userid
+        ";
+
+        $xapiparams = array(
+            'contextlevel' => CONTEXT_MODULE,
+            'userid'       => $userid,
+        );
+
+        $contextlist->add_from_sql($xapisql, $xapiparams);
+
+        // Table hvp_events note:
+        // H5P events are not tied to instance ids, thus we cannot determine
+        // their context ids, they are considered to be user level context
+        // actions.
+
+        return $contextlist;
+    }
+
+    /**
+     * Export all user data for the specified user, in the specified contexts, using the supplied
+     * exporter instance.
+     *
+     * @param approved_contextlist $contextlist The approved contexts to export information for.
+     */
+    public static function _export_user_data(approved_contextlist $contextlist) {
+        global $DB;
+
+        if (!count($contextlist)) {
+            return;
+        }
+
+        $user   = $contextlist->get_user();
+        $userid = $user->id;
+        list($contextsql, $contextparams) = $DB->get_in_or_equal($contextlist->get_contextids(), SQL_PARAMS_NAMED);
+
+        $cud = self::get_exportable_content_user_data($contextsql, $contextparams, $userid);
+        $xapi = self::get_exportable_xapi_results($contextsql, $contextparams, $userid);
+
+        // Export data with context.
+        foreach ($contextlist->get_contexts() as $context) {
+            $h5pdata = \core_privacy\local\request\helper::get_context_data($context, $contextlist->get_user());
+            \core_privacy\local\request\helper::export_context_files($context, $contextlist->get_user());
+
+            // Add content user data.
+            if (!empty($cud[$context->id]) && !empty($cud[$context->id]->data)) {
+                $h5pdata->contentuserdata = $cud[$context->id]->data;
+            }
+
+            // Add xAPI data.
+            if (!empty($xapi[$context->id])) {
+                $h5pdata->xapiresults = $xapi[$context->id];
+            }
+
+            writer::with_context($context)->export_data([], $h5pdata);
+        }
+
+        // Write H5PEvents to subcontext of the user context.
+        $usercontext = \context_user::instance($userid);
+        $h5pevents = self::get_exportable_events($userid);
+        writer::with_context($usercontext)->export_data(['H5PEvents'], $h5pevents);
+    }
+
+    /**
+     * Get exportable content user data for a given context and user
+     *
+     * @param $contextsql
+     * @param $contextparams
+     * @param $userid
+     *
+     * @return array Exportable and writable content user data
+     * @throws \dml_exception
+     */
+    protected static function get_exportable_content_user_data($contextsql, $contextparams, $userid) {
+        global $DB;
+
+        $cudsql = "
+          SELECT
+            c.id as contextid,
+            cm.id as cmid,
+            h.id,
+            h.name,
+            cud.data
+          FROM {context} c
+            INNER JOIN {course_modules} cm ON cm.id = c.instanceid AND c.contextlevel = :contextlevel
+            INNER JOIN {modules} m ON m.id = cm.module AND m.name = :modname
+            INNER JOIN {hvp} h ON h.id = cm.instance
+            INNER JOIN {hvp_content_user_data} cud ON cud.hvp_id = h.id
+          WHERE cud.user_id = :userid
+          AND c.id {$contextsql}
+        ";
+
+        $cudparams = [
+            'contextlevel' => CONTEXT_MODULE,
+            'modname'      => 'hvp',
+            'userid'       => $userid,
+        ];
+        $cudparams += $contextparams;
+
+        $cudresult = $DB->get_recordset_sql($cudsql, $cudparams);
+        $cud       = [];
+        foreach ($cudresult as $record) {
+            $cud[$record->contextid] = $record;
+        }
+        $cudresult->close();
+
+        return $cud;
+    }
+
+    /**
+     * Get exportable xapi results from context and user id
+     *
+     * @param $contextsql
+     * @param $contextparams
+     * @param $userid
+     *
+     * @return array Exportable and writable xapi results
+     * @throws \dml_exception
+     */
+    protected static function get_exportable_xapi_results($contextsql, $contextparams, $userid) {
+        global $DB;
+
+        $xapisql = "
+          SELECT
+            c.id as contextid,
+            cm.id as cmid,
+            h.id,
+            h.name,
+            x.content_id,
+            x.parent_id,
+            x.description,
+            x.response,
+            x.additionals,
+            x.raw_score,
+            x.max_score
+          FROM {context} c
+            INNER JOIN {course_modules} cm ON cm.id = c.instanceid AND c.contextlevel = :contextlevel
+            INNER JOIN {modules} m ON m.id = cm.module AND m.name = :modname
+            INNER JOIN {hvp} h ON h.id = cm.instance
+            INNER JOIN {hvp_xapi_results} x ON x.content_id = h.id
+          WHERE x.user_id = :userid
+            AND c.id {$contextsql}
+        ";
+
+        $xapiparams = [
+            'contextlevel' => CONTEXT_MODULE,
+            'modname'      => 'hvp',
+            'userid'       => $userid,
+        ];
+        $xapiparams += $contextparams;
+
+        $xapiresult = $DB->get_recordset_sql($xapisql, $xapiparams);
+        $xapi       = [];
+        foreach ($xapiresult as $record) {
+            $h5pxapi = (object) array();
+            if (!empty($record->content_id)) {
+                $h5pxapi->content_id = $record->content_id;
+            }
+
+            if (!empty($record->parent_id)) {
+                $h5pxapi->parent_id = $record->parent_id;
+            }
+
+            if (!empty($record->description)) {
+                $h5pxapi->description = $record->description;
+            }
+
+            if (!empty($record->response)) {
+                $h5pxapi->response = $record->response;
+            }
+
+            if (!empty($record->additionals)) {
+                $h5pxapi->additionals = $record->additionals;
+            }
+
+            if (!empty($record->raw_score)) {
+                $h5pxapi->raw_score = $record->raw_score;
+            }
+
+            if (!empty($record->max_score)) {
+                $h5pxapi->max_score = $record->max_score;
+            }
+
+            $xapi[$record->contextid][] = $h5pxapi;
+        }
+        $xapiresult->close();
+
+        return $xapi;
+    }
+
+    /**
+     * Get exportable H5P events from user id
+     *
+     * @param $userid
+     *
+     * @return object Exportable and writable H5P events
+     * @throws \dml_exception
+     */
+    protected static function get_exportable_events($userid) {
+        global $DB;
+
+        $eventssql = "
+          SELECT *
+          FROM {hvp_events}
+          WHERE user_id = :userid
+        ";
+
+        $eventsparams = [
+            'userid' => $userid,
+        ];
+
+        $h5peventsresults = $DB->get_recordset_sql($eventssql, $eventsparams);
+        $h5pevents        = (object) [
+            'events' => [],
+        ];
+        foreach ($h5peventsresults as $event) {
+            $h5pevents->events[] = $event;
+        }
+        $h5peventsresults->close();
+
+        return $h5pevents;
+    }
+
+    /**
+     * Delete all data for all users in the specified context.
+     *
+     * @param \context $context The specific context to delete data for.
+     */
+    public static function _delete_data_for_all_users_in_context(\context $context) {
+        global $DB;
+
+        if ($context->contextlevel == CONTEXT_USER) {
+            // Delete all H5P events.
+            $DB->delete_records('hvp_events');
+            return;
+        } else if ($context->contextlevel != CONTEXT_MODULE) {
+            return;
+        }
+
+        $cm = get_coursemodule_from_id('hvp', $context->instanceid);
+        if (!$cm) {
+            return;
+        }
+
+        // Delete content user data.
+        $DB->delete_records('hvp_content_user_data', [
+            'hvp_id' => $cm->instance,
+        ]);
+
+        // Delete xAPI results.
+        $DB->delete_records('hvp_xapi_results', [
+            'content_id' => $cm->instance,
+        ]);
+    }
+
+    /**
+     * Delete all user data for the specified user, in the specified contexts.
+     *
+     * @param approved_contextlist $contextlist The approved contexts and user information to delete information for.
+     */
+    public static function _delete_data_for_user(approved_contextlist $contextlist) {
+        global $DB;
+
+        $count = $contextlist->count();
+        if (empty($count)) {
+            return;
+        }
+
+        $userid = $contextlist->get_user()->id;
+        foreach ($contextlist->get_contexts() as $context) {
+            $cm = get_coursemodule_from_id('hvp', $context->instanceid);
+
+            if (!$cm) {
+                continue;
+            }
+
+            // Delete content user data.
+            $DB->delete_records('hvp_content_user_data', [
+                'hvp_id'  => $cm->instance,
+                'user_id' => $userid,
+            ]);
+
+            // Delete xAPI results.
+            $DB->delete_records('hvp_xapi_results', [
+                'content_id' => $cm->instance,
+                'user_id'    => $userid,
+            ]);
+        }
+
+        // Delete H5P events.
+        $DB->delete_records('hvp_events', [
+            'user_id' => $userid,
+        ]);
+    }
+
+    /**
+     * Get the list of users who have data within a context.
+     *
+     * @param   userlist    $userlist   The userlist containing the list of users who have data in this context/plugin combination.
+     */
+    public static function get_users_in_context(userlist $userlist) {
+        $context = $userlist->get_context();
+        if (!is_a($context, \context_module::class)) {
+            return;
+        }
+
+        $sql = "
+          SELECT d.user_id
+          FROM {course_modules} cm
+            INNER JOIN {modules} m ON m.id = cm.module AND m.name = 'hvp'
+            INNER JOIN {context} c ON c.instanceid = cm.id
+            INNER JOIN {hvp} h ON h.id = cm.instance
+            INNER JOIN {hvp_content_user_data} d ON h.id = d.hvp_id
+          WHERE c.contextlevel = :contextlevel AND c.id = :contextid";
+
+        $params = [
+            'contextlevel' => CONTEXT_MODULE,
+            'contextid'    => $context->id,
+        ];
+        $userlist->add_from_sql('user_id', $sql, $params);
+
+        $sql = "
+          SELECT
+            x.user_id
+          FROM {course_modules} cm
+            INNER JOIN {modules} m ON m.id = cm.module AND m.name = 'hvp'
+            INNER JOIN {context} c ON c.instanceid = cm.id
+            INNER JOIN {hvp} h ON h.id = cm.instance
+            INNER JOIN {hvp_xapi_results} x ON x.content_id = h.id
+          WHERE c.contextlevel = :contextlevel AND c.id = :contextid";
+        $userlist->add_from_sql('user_id', $sql, $params);
+    }
+
+    /**
+     * Delete multiple users within a single context.
+     *
+     * @param   approved_userlist       $userlist The approved context and user information to delete information for.
+     */
+    public static function delete_data_for_users(approved_userlist $userlist) {
+        global $DB;
+        $context = $userlist->get_context();
+        if (!is_a($context, \context_module::class)) {
+            return;
+        }
+        $cm = get_coursemodule_from_id('hvp', $context->instanceid);
+
+        // Prepare SQL to gather all completed IDs.
+        $userids = $userlist->get_userids();
+        list($insql, $inparams) = $DB->get_in_or_equal($userids, SQL_PARAMS_NAMED);
+
+        $inparams['hvpid'] = $cm->instance;
+
+        $DB->delete_records_select(
+            'hvp_content_user_data',
+            "hvp_id = :hvpid AND user_id $insql",
+            $inparams
+        );
+
+        $DB->delete_records_select(
+            'hvp_xapi_results',
+            "hvp_id = :hvpid AND user_id $insql",
+            $inparams
+        );
+
+    }
+}

classes/results.php

@@ -0,0 +1,379 @@
+<?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/>.
+
+/**
+ * The mod_hvp file storage
+ *
+ * @package    mod_hvp
+ * @copyright  2016 Joubel AS
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace mod_hvp;
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * The mod_hvp file storage class.
+ *
+ * @package    mod_hvp
+ * @since      Moodle 2.7
+ * @copyright  2016 Joubel AS
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class results {
+
+    // Type specific inputs.
+    protected $contentid;
+
+    // Generic result inputs.
+    protected $offset, $limit, $orderby, $orderdir, $filters;
+
+    /**
+     * Start handling results by filtering input parameters.
+     */
+    public function __construct() {
+        $this->filter_input();
+    }
+
+    /**
+     * Filter and load input parameters
+     *
+     * @throws \coding_exception
+     */
+    protected function filter_input() {
+        // Type specifc.
+        $this->contentid = optional_param('content_id', 0, PARAM_INT);
+
+        // Used to handle pagination.
+        $this->offset = optional_param('offset', 0, PARAM_INT);
+
+        // Max number of items to display on one page.
+        $this->limit = optional_param('limit', 20, PARAM_INT);
+        if ($this->limit > 100) {
+            // Avoid wrong usage.
+            throw new \coding_exception('limit to high');
+        }
+
+        // Field to order by.
+        $this->orderby = optional_param('sortBy', 0, PARAM_INT);
+
+        // Direction to order in.
+        $this->orderdir = optional_param('sortDir', 0, PARAM_INT);
+
+        // List of fields to filter results on.
+        $this->filters = optional_param_array('filters', array(), PARAM_RAW_TRIMMED);
+    }
+
+    /**
+     * Print results data
+     */
+    public function print_results() {
+        global $USER;
+
+        $cm = get_coursemodule_from_instance('hvp', $this->contentid);
+        if (!$cm) {
+            \H5PCore::ajaxError('No such content');
+            http_response_code(404);
+            return;
+        }
+
+        // Check permission.
+        $context = \context_module::instance($cm->id);
+        $viewownresults = has_capability('mod/hvp:viewresults', $context);
+        $viewallresults = has_capability('mod/hvp:viewallresults', $context);
+        if (!$viewownresults && !$viewallresults) {
+            \H5PCore::ajaxError(get_string('nopermissiontoviewresult', 'hvp'));
+            http_response_code(403);
+            return;
+        }
+
+        // Only get own results if can't view all.
+        $uid = $viewallresults ? null : (int)$USER->id;
+        $results = $this->get_results($uid);
+        $rows = $this->get_human_readable_results($results, $cm->course);
+
+        header('Cache-Control: no-cache');
+        header('Content-type: application/json');
+        print json_encode(array(
+            'num' => $this->get_results_num(),
+            'rows' => $rows
+        ));
+    }
+
+    /**
+     * Constructs human readable results
+     *
+     * @param $results
+     * @param $course
+     *
+     * @return array
+     */
+    private function get_human_readable_results($results, $course) {
+        // Make data readable for humans.
+        $rows = array();
+        foreach ($results as $result) {
+            $userlink = \html_writer::link(
+                new \moodle_url('/user/view.php', array(
+                    'id' => $result->id,
+                    'course' => $course
+                )),
+                \fullname($result)
+            );
+
+            $reviewlink = '—';
+
+            // Check if result has xAPI data.
+            if ($result->xapiid) {
+                $reviewlink = \html_writer::link(
+                    new \moodle_url('/mod/hvp/review.php',
+                        array(
+                            'id' => $this->contentid,
+                            'course' => $course,
+                            'user' => $result->id
+                        )
+                    ),
+                    get_string('viewreportlabel', 'hvp')
+                );
+            } else if ($result->rawgrade !== null) {
+                $reviewlink = get_string('reportnotsupported', 'hvp');
+            }
+
+            $rows[] = array(
+                $userlink,
+                $result->rawgrade === null ? '—' : (int) $result->rawgrade,
+                $result->rawgrade === null ? '—' : (int) $result->rawgrademax,
+                empty($result->timemodified) ? '—' : date('Y/m/d – H:i', $result->timemodified),
+                $reviewlink
+            );
+        }
+
+        return $rows;
+    }
+
+    /**
+     * Builds the SQL query required to retrieve results for the given
+     * interactive content.
+     *
+     * @param int $uid Only get results for uid
+     *
+     * @throws \coding_exception
+     * @return array
+     */
+    protected function get_results($uid=null) {
+        // Add extra fields, joins and where for the different result lists.
+        if ($this->contentid !== 0) {
+            list($fields, $join, $where, $order, $args) = $this->get_content_sql($uid);
+        } else {
+            throw new \coding_exception('missing content_id');
+        }
+
+        // Xapi join.
+        $where[] = "x.content_id = ?";
+        $args[] = $this->contentid;
+
+        // Build where statement.
+        $where[] = "i.itemtype = 'mod'";
+        $where[] = "i.itemmodule = 'hvp'";
+        $where[] = "x.parent_id IS NULL";
+        $where = 'WHERE ' . implode(' AND ', $where);
+
+        // Order results by the select column and direction.
+        $order[] = 'g.rawgrade';
+        $order[] = 'g.rawgrademax';
+        $order[] = 'g.timemodified';
+        $orderby = $this->get_order_sql($order);
+
+        // Join on xAPI results.
+        $join .= ' LEFT JOIN {hvp_xapi_results} x ON g.userid = x.user_id';
+        $groupby = ' GROUP BY i.id, g.id, u.id, i.iteminstance, x.id';
+
+        // Get from statement.
+        $from = $this->get_from_sql();
+
+        // Execute query and get results.
+        return $this->get_sql_results("
+                SELECT u.id,
+                       i.id AS gradeitemid,
+                       g.id AS gradeid,
+                       {$fields}
+                       g.rawgrade,
+                       g.rawgrademax,
+                       g.timemodified,
+                       x.id as xapiid
+                  {$from}
+                  {$join}
+                  {$where}
+                  {$groupby}
+                  {$orderby}
+                ", $args,
+                $this->offset,
+                $this->limit);
+    }
+
+    /**
+     * Build and execute the query needed to tell the number of total results.
+     * This is used to create pagination.
+     *
+     * @return int
+     */
+    protected function get_results_num() {
+        global $DB;
+
+        list(, $join, $where, , $args) = $this->get_content_sql();
+        $where[] = "i.itemtype = 'mod'";
+        $where[] = "i.itemmodule = 'hvp'";
+        $where = 'WHERE ' . implode(' AND ', $where);
+        $from = $this->get_from_sql();
+
+        return (int) $DB->get_field_sql("SELECT COUNT(i.id) {$from} {$join} {$where}", $args);
+    }
+
+    /**
+     * Builds the order part of the SQL query.
+     *
+     * @param array $fields Fields allowed to order by
+     * @throws \coding_exception
+     * @return string
+     */
+    protected function get_order_sql($fields) {
+        // Make sure selected order field is valid.
+        if (!isset($fields[$this->orderby])) {
+            throw new \coding_exception('invalid order field');
+        }
+
+        // Find selected sortable field.
+        $field = $fields[$this->orderby];
+
+        if (is_object($field)) {
+            // Some fields are reverse sorted by default, e.g. text fields.
+            // This feels more natural for the humans.
+            if (!empty($field->reverse)) {
+                $this->orderdir = !$this->orderdir;
+            }
+
+            $field = $field->name;
+        }
+
+        $dir = ($this->orderdir ? 'ASC' : 'DESC');
+        if ($field === 'u.firstname') {
+            // Order by all user name fields.
+            $field = implode(" {$dir}, ", self::get_ordered_user_name_fields());
+        }
+
+        return "ORDER BY {$field} {$dir}";
+    }
+
+    /**
+     * Get from part of the SQL query.
+     *
+     * @return string
+     */
+    protected function get_from_sql() {
+        return " FROM {grade_items} i LEFT JOIN {grade_grades} g ON i.id = g.itemid LEFT JOIN {user} u ON u.id = g.userid";
+    }
+
+    /**
+     * Get all user name fields in display order.
+     *
+     * @param string $prefix Optional table prefix to prepend to all fields
+     * @return array
+     */
+    public static function get_ordered_user_name_fields($prefix = 'u.') {
+        static $ordered;
+
+        if (empty($ordered)) {
+            $available = \get_all_user_name_fields();
+            $displayname = \fullname((object)$available);
+            if (empty($displayname)) {
+                $ordered = array("{$prefix}firstname", "{$prefix}lastname");
+            } else {
+                // Find fields in order.
+                foreach ($available as $key => $value) {
+                    $ordered[] = $prefix . $available[$key];
+                }
+            }
+        }
+
+        return $ordered;
+    }
+
+    /**
+     * Get the different parts needed to create the SQL for getting results
+     * belonging to a specifc content.
+     * (An alternative to this could be getting all the results for a
+     * specified user.)
+     *
+     * @param int $uid Only get users with this id
+     * @return array $fields, $join, $where, $order, $args
+     */
+    protected function get_content_sql($uid=null) {
+        global $DB;
+
+        $usernamefields = implode(', ', self::get_ordered_user_name_fields());
+        $fields = " {$usernamefields}, ";
+        $join = "";
+        $where = array("i.iteminstance = ?");
+        $args = array($this->contentid);
+
+        // Only get entries with own user id.
+        if (isset($uid)) {
+            array_push($where, "u.id = ?");
+            array_push($args, $uid);
+        }
+
+        if (isset($this->filters[0])) {
+            $keywordswhere = array();
+
+            // Split up keywords using whitespace and comma.
+            foreach (preg_split("/[\s,]+/", $this->filters[0]) as $keyword) {
+                // Search all user name fields.
+                $usernamewhere = array();
+                foreach (self::get_ordered_user_name_fields() as $usernamefield) {
+                    $usernamewhere[] = $DB->sql_like($usernamefield, '?', false);
+                    $args[] = '%' . $keyword . '%';
+                }
+
+                // Add user name fields where to keywords where.
+                if (!empty($usernamewhere)) {
+                    $keywordswhere[] = '(' . implode(' OR ', $usernamewhere) . ')';
+                }
+            }
+
+            // Add keywords where to SQL where.
+            if (!empty($keywordswhere)) {
+                $where[] = '(' . implode(' AND ', $keywordswhere) . ')';
+            }
+        }
+        $order = array((object) array(
+            'name' => 'u.firstname',
+            'reverse' => true
+        ));
+
+        return array($fields, $join, $where, $order, $args);
+    }
+
+    /**
+     * Execute given query and return any results
+     *
+     * @param string $query
+     * @param array $args Used for placeholders
+     * @return array
+     */
+    protected function get_sql_results($query, $args, $limitfrom = 0, $limitnum = 0) {
+        global $DB;
+        return $DB->get_records_sql($query, $args, $limitfrom, $limitnum);
+    }
+}

classes/task/look_for_updates.php

@@ -0,0 +1,47 @@
+<?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/>.
+/**
+ * Defines the task which looks for H5P updates.
+ *
+ * @package    mod_hvp
+ * @copyright  2016 Joubel AS <contact@joubel.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace mod_hvp\task;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * The mod_hvp look for updates task class
+ *
+ * @package    mod_hvp
+ * @copyright  2016 Joubel AS <contact@joubel.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class look_for_updates extends \core\task\scheduled_task {
+    public function get_name() {
+        return get_string('lookforupdates', 'mod_hvp');
+    }
+
+    public function execute() {
+        // Check to make sure external communications hasn't been disabled.
+        if (get_config('mod_hvp', 'hub_is_enabled') || get_config('mod_hvp', 'send_usage_statistics')) {
+            $core = \mod_hvp\framework::instance();
+            $core->fetchLibrariesMetadata();
+        }
+    }
+}

classes/task/remove_old_auth_tokens.php

@@ -0,0 +1,52 @@
+<?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/>.
+
+/**
+ * Defines the task which removes old mobile auth tokens from the hvp_auth table.
+ *
+ * @package    mod_hvp
+ * @copyright  2019 Joubel AS <contact@joubel.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace mod_hvp\task;
+
+use mod_hvp\mobile_auth;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * The mod_hvp remove old auth tokens class
+ *
+ * @package    mod_hvp
+ * @copyright  2019 Joubel AS <contact@joubel.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class remove_old_auth_tokens extends \core\task\scheduled_task {
+    public function get_name() {
+        return get_string('removeoldmobileauthentries', 'mod_hvp');
+    }
+
+    public function execute() {
+        global $DB;
+
+        require_once(__DIR__ . '/../../autoloader.php');
+        $deletethreshold = time() - mobile_auth::VALID_TIME;
+        $DB->delete_records_select('hvp_auth', 'created_at < :threshold', array(
+            'threshold' => $deletethreshold,
+        ));
+    }
+}

classes/task/remove_old_log_entries.php

@@ -0,0 +1,48 @@
+<?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/>.
+/**
+ * Defines the task which looks for H5P updates.
+ *
+ * @package    mod_hvp
+ * @copyright  2016 Joubel AS <contact@joubel.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace mod_hvp\task;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * The mod_hvp look for updates task class
+ *
+ * @package    mod_hvp
+ * @copyright  2016 Joubel AS <contact@joubel.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class remove_old_log_entries extends \core\task\scheduled_task {
+    public function get_name() {
+        return get_string('removeoldlogentries', 'mod_hvp');
+    }
+
+    public function execute() {
+        global $DB;
+
+        require_once(__DIR__ . '/../../autoloader.php');
+        // @codingStandardsIgnoreLine
+        $olderthan = (time() - \H5PEventBase::$log_time);
+        $DB->execute("DELETE FROM {hvp_events} WHERE created_at < {$olderthan}");
+    }
+}

classes/task/remove_tmpfiles.php

@@ -0,0 +1,63 @@
+<?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/>.
+/**
+ * Defines the task which removes old tmp files
+ *
+ * @package    mod_hvp
+ * @copyright  2016 Joubel AS <contact@joubel.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace mod_hvp\task;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * The mod_hvp look for updates task class
+ *
+ * @package    mod_hvp
+ * @copyright  2016 Joubel AS <contact@joubel.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class remove_tmpfiles extends \core\task\scheduled_task {
+    public function get_name() {
+        return get_string('removetmpfiles', 'mod_hvp');
+    }
+
+    public function execute() {
+        global $DB;
+        $tmpfiles = $DB->get_records_sql(
+                "SELECT f.id
+                   FROM {hvp_tmpfiles} tf
+                   JOIN {files} f ON f.id = tf.id
+                  WHERE f.timecreated < ?",
+                array(time() - 86400)
+        );
+        if (empty($tmpfiles)) {
+            return; // Nothing to clean up.
+        }
+
+        $fs = get_file_storage();
+        foreach ($tmpfiles as $tmpfile) {
+            // Delete file.
+            $file = $fs->get_file_by_id($tmpfile->id);
+            $file->delete();
+
+            // Remove tmpfile entry.
+            $DB->delete_records('hvp_tmpfiles', array('id' => $tmpfile->id));
+        }
+    }
+}

classes/upload_libraries_form.php

@@ -0,0 +1,142 @@
+<?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/>.
+
+/**
+ * \mod_hvp\upload_libraries_form class
+ *
+ * @package    mod_hvp
+ * @copyright  2016 Joubel AS
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace mod_hvp;
+
+defined('MOODLE_INTERNAL') || die();
+
+// Load moodleform class.
+require_once("$CFG->libdir/formslib.php");
+
+/**
+ * Form to upload new H5P libraries and upgrade existing once
+ *
+ * @package    mod_hvp
+ * @copyright  2016 Joubel AS
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class upload_libraries_form extends \moodleform {
+
+    /**
+     * Define form elements
+     */
+    public function definition() {
+        global $CFG, $OUTPUT;
+
+        // Get form.
+        $mform = $this->_form;
+
+        // Add File Picker.
+        $mform->addElement('filepicker', 'h5pfile', get_string('h5pfile', 'hvp'), null,
+                   array('maxbytes' => $CFG->maxbytes, 'accepted_types' => '*.h5p'));
+
+        // Add options.
+        $mform->addElement('checkbox',
+            'onlyupdate',
+            get_string('options', 'hvp'),
+            get_string('onlyupdate', 'hvp'),
+            array('group' => 1)
+        );
+        $mform->setType('onlyupdate', PARAM_BOOL);
+        $mform->setDefault('onlyupdate', false);
+
+        $mform->addElement('checkbox',
+            'disablefileextensioncheck',
+            '',
+            get_string('disablefileextensioncheck', 'hvp'),
+            array('group' => 1)
+        );
+        $mform->setType('disablefileextensioncheck', PARAM_BOOL);
+        $mform->setDefault('disablefileextensioncheck', false);
+
+        $notification = $OUTPUT->notification(
+            get_string('disablefileextensioncheckwarning', 'hvp'),
+            'notifymessage'
+        );
+        $mform->addElement('static', '', '', $notification);
+
+        // Upload button.
+        $this->add_action_buttons(false, get_string('upload', 'hvp'));
+    }
+
+    /**
+     * Preprocess incoming data
+     *
+     * @param array $defaultvalues default values for form
+     */
+    public function data_preprocessing(&$defaultvalues) {
+        // Aaah.. we meet again h5pfile!.
+        $draftitemid = file_get_submitted_draft_itemid('h5pfile');
+        file_prepare_draft_area($draftitemid, $this->context->id, 'mod_hvp', 'package', 0);
+        $defaultvalues['h5pfile'] = $draftitemid;
+    }
+
+    /**
+     * Validate incoming data
+     *
+     * @param array $data array of ("fieldname"=>value) of submitted data
+     * @param array $files array of uploaded files "element_name"=>tmp_file_path
+     * @return array of "element_name"=>"error_description" if there are errors,
+     *         or an empty array if everything is OK (true allowed for backwards compatibility too).
+     */
+    public function validation($data, $files) {
+        global $CFG;
+        $errors = array();
+
+        // Check for file.
+        if (empty($data['h5pfile'])) {
+            $errors['h5pfile'] = get_string('required');
+            return $errors;
+        }
+
+        $files = $this->get_draft_files('h5pfile');
+        if (count($files) < 1) {
+            $errors['h5pfile'] = get_string('required');
+            return $errors;
+        }
+
+        // Add file so that core framework can find it.
+        $file = reset($files);
+        $interface = \mod_hvp\framework::instance('interface');
+
+        $path = $CFG->tempdir . uniqid('/hvp-');
+        $interface->getUploadedH5pFolderPath($path);
+        $path .= '.h5p';
+        $interface->getUploadedH5pPath($path);
+        $file->copy_content_to($path);
+
+        // Validate package.
+        $h5pvalidator = \mod_hvp\framework::instance('validator');
+        if (!$h5pvalidator->isValidPackage(true, isset($data['onlyupdate']))) {
+            // Errors while validating the package.
+            $errors = array_map(function ($message) {
+                return $message->message;
+            }, framework::messages('error'));
+
+            $messages = array_merge(framework::messages('info'), $errors);
+            $errors['h5pfile'] = implode('<br/>', $messages);
+        }
+        return $errors;
+    }
+}

classes/user_grades.php

@@ -0,0 +1,226 @@
+<?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/>.
+
+/**
+ * The mod_hvp user grades
+ *
+ * @package    mod_hvp
+ * @copyright  2016 Joubel AS
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace mod_hvp;
+
+defined('MOODLE_INTERNAL') || die();
+
+require(__DIR__ . '/../lib.php');
+
+/**
+ * Handles grade storage for users
+ * @package mod_hvp
+ */
+class user_grades {
+
+    public static function handle_ajax() {
+        global $DB, $USER, $CFG;
+
+        if (!\H5PCore::validToken('result', required_param('token', PARAM_RAW))) {
+            \H5PCore::ajaxError(get_string('invalidtoken', 'hvp'));
+            return;
+        }
+
+        $cm = get_coursemodule_from_id('hvp', required_param('contextId', PARAM_INT));
+        if (!$cm) {
+            \H5PCore::ajaxError('No such content');
+            http_response_code(404);
+            return;
+        }
+
+        // Content parameters.
+        $score = required_param('score', PARAM_INT);
+        $maxscore = required_param('maxScore', PARAM_INT);
+
+        // Check permission.
+        $context = \context_module::instance($cm->id);
+        if (!has_capability('mod/hvp:saveresults', $context)) {
+            \H5PCore::ajaxError(get_string('nopermissiontosaveresult', 'hvp'));
+            http_response_code(403);
+            return;
+        }
+
+        // Get hvp data from content.
+        $hvp = $DB->get_record('hvp', array('id' => $cm->instance));
+        if (!$hvp) {
+            \H5PCore::ajaxError('No such content');
+            http_response_code(404);
+            return;
+        }
+
+        // Create grade object and set grades.
+        $grade = (object) array(
+            'userid' => $USER->id
+        );
+
+        // Set grade using Gradebook API.
+        $hvp->cmidnumber = $cm->idnumber;
+        $hvp->name = $cm->name;
+        $hvp->rawgrade = $score;
+        $hvp->rawgrademax = $maxscore;
+        hvp_grade_item_update($hvp, $grade);
+
+        // Get content info for log.
+        $content = $DB->get_record_sql(
+                "SELECT c.name AS title, l.machine_name AS name, l.major_version, l.minor_version
+                   FROM {hvp} c
+                   JOIN {hvp_libraries} l ON l.id = c.main_library_id
+                  WHERE c.id = ?",
+                array($hvp->id)
+        );
+
+        require_once($CFG->libdir.'/completionlib.php');
+
+        // Load Course.
+        $course = $DB->get_record('course', array('id' => $cm->course));
+        $completion = new \completion_info( $course );
+
+        if ( $completion->is_enabled( $cm) ) {
+            $completion->update_state($cm, COMPLETION_COMPLETE);
+        }
+
+        // Log results set event.
+        new \mod_hvp\event(
+                'results', 'set',
+                $hvp->id, $content->title,
+                $content->name, $content->major_version . '.' . $content->minor_version
+        );
+
+        // Trigger Moodle event for async notification messages.
+        $event = \mod_hvp\event\attempt_submitted::create([
+            'context' => $context,
+        ]);
+        $event->trigger();
+
+        \H5PCore::ajaxSuccess();
+    }
+
+    /**
+     *  Since the subcontent types do not have their own row in the table,
+     *  we use the hvp_results_table as a 'staging area' to set and get
+     *  dynamically graded scores.
+     */
+    public static function handle_dynamic_grading() {
+        global $DB;
+
+        if (!\H5PCore::validToken('result', required_param('token', PARAM_RAW))) {
+            \H5PCore::ajaxError(get_string('invalidtoken', 'hvp'));
+            return;
+        }
+
+        $cm = get_coursemodule_from_id('hvp', required_param('contextId', PARAM_INT));
+        if (!$cm) {
+            \H5PCore::ajaxError('No such content');
+            http_response_code(404);
+            return;
+        }
+
+        // Content parameters.
+        $subcontentid = required_param('subcontent_id', PARAM_INT);
+        $score = required_param('score', PARAM_INT);
+
+        // Update the answer's score.
+        $data = (object) [
+            'id' => $subcontentid,
+            'raw_score' => $score
+        ];
+        $DB->update_record('hvp_xapi_results', $data, false);
+
+        // Load freshly updated record.
+        $answer = $DB->get_record('hvp_xapi_results', array('id' => $subcontentid));
+
+        // Get the sum of all the OEQ scores with the same parent.
+        $totalgradablesscore = intval($DB->get_field_sql(
+            "SELECT SUM(raw_score)
+            FROM {hvp_xapi_results}
+            WHERE parent_id = ?
+            AND additionals = ?", array($answer->parent_id,
+            '{"extensions":{"https:\/\/h5p.org\/x-api\/h5p-machine-name":"H5P.FreeTextQuestion"}}')
+        ));
+
+        // Get the original raw score from the main content type.
+        $baseanswer = $DB->get_record('hvp_xapi_results', array(
+            'id' => $answer->parent_id
+        ));
+
+        // Get hvp data from content.
+        $hvp = $DB->get_record('hvp', array('id' => $cm->instance));
+        if (!$hvp) {
+            \H5PCore::ajaxError('No such content');
+            http_response_code(404);
+            return;
+        }
+
+        // Set grade using Gradebook API.
+        $hvp->rawgrade = $baseanswer->raw_score + $totalgradablesscore;
+        $hvp->rawgrademax = $baseanswer->max_score;
+        hvp_grade_item_update($hvp, (object) array(
+            'userid' => $answer->user_id
+        ));
+
+        // Get the num of ungraded OEQ answers.
+        $numungraded = intval($DB->get_field_sql(
+            "SELECT COUNT(*)
+            FROM {hvp_xapi_results}
+            WHERE parent_id = ?
+            AND raw_score IS NULL
+            AND additionals = ?", array($answer->parent_id,
+            '{"extensions":{"https:\/\/h5p.org\/x-api\/h5p-machine-name":"H5P.FreeTextQuestion"}}')
+        ));
+
+        $response = [
+            'score' => $answer->raw_score,
+            'maxScore' => $answer->max_score,
+            'totalUngraded' => $numungraded,
+        ];
+        \H5PCore::ajaxSuccess($response);
+    }
+
+    /**
+     * Fetch score/maxScore for ungraded item + number of ungraded items.
+     */
+    public static function return_subcontent_grade() {
+        global $DB;
+
+        // Content parameters.
+        $subcontentid = required_param('subcontent_id', PARAM_INT);
+        $answer = $DB->get_record('hvp_xapi_results', array('id' => $subcontentid));
+
+        // Get the num of ungraded OEQ answers.
+        $numungraded = intval($DB->get_field_sql(
+            "SELECT COUNT(*)
+            FROM {hvp_xapi_results}
+            WHERE parent_id = ?
+            AND raw_score IS NULL
+            AND additionals = ?", array($answer->parent_id,
+            '{"extensions":{"https:\/\/h5p.org\/x-api\/h5p-machine-name":"H5P.FreeTextQuestion"}}')
+        ));
+
+        $response = [
+            'score' => $answer->raw_score,
+            'maxScore' => $answer->max_score,
+            'totalUngraded' => $numungraded,
+        ];
+        \H5PCore::ajaxSuccess($response);
+    }
+}

classes/view_assets.php

@@ -0,0 +1,363 @@
+<?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/>.
+
+/**
+ * The mod_hvp view assets convenience class for viewing and embedding H5Ps
+ *
+ * @package    mod_hvp
+ * @copyright  2017 Joubel
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace mod_hvp;
+
+use moodle_url;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Handles finding and attaching assets for view
+ * @package mod_hvp
+ */
+class view_assets {
+
+    private $cm;
+    private $course;
+    private $core;
+    private $content;
+    private $jsrequires;
+    private $cssrequires;
+
+    protected $settings;
+    protected $embedtype;
+    protected $files;
+
+    public function __construct($cm, $course, $options = []) {
+        $this->cm          = $cm;
+        $this->course      = $course;
+        $this->core        = framework::instance();
+        $this->content     = $this->core->loadContent($cm->instance);
+        $this->settings    = hvp_get_core_assets(\context_module::instance($cm->id));
+        $this->jsrequires  = [];
+        $this->cssrequires = [];
+
+        $context        = \context_module::instance($this->cm->id);
+        $displayoptions = $this->core->getDisplayOptionsForView($this->content['disable'], $context->instanceid);
+        if (isset($options['disabledownload']) && $options['disabledownload']) {
+            $displayoptions[\H5PCore::DISPLAY_OPTION_DOWNLOAD] = false;
+        }
+        if (isset($options['disablefullscreen']) && $options['disablefullscreen']) {
+            $this->settings['fullscreenDisabled'] = true;
+        }
+
+        // Add JavaScript settings for this content.
+        $cid                                  = 'cid-' . $this->content['id'];
+        $root = self::getsiteroot();
+        $this->settings['contents'][ $cid ]   = array(
+            'library'         => \H5PCore::libraryToString($this->content['library']),
+            'jsonContent'     => $this->getfilteredparameters(),
+            'fullScreen'      => $this->content['library']['fullscreen'],
+            'exportUrl'       => $this->getexportsettings($displayoptions[ \H5PCore::DISPLAY_OPTION_DOWNLOAD ]),
+            'embedCode'       => $this->getembedcode($displayoptions[ \H5PCore::DISPLAY_OPTION_EMBED ]),
+            'resizeCode'      => $this->getresizecode($displayoptions[ \H5PCore::DISPLAY_OPTION_EMBED ]),
+            'title'           => $this->content['title'],
+            'displayOptions'  => $displayoptions,
+            'url'             => "{$root}/mod/hvp/view.php?id={$this->cm->id}",
+            'contentUrl'      => "{$root}/pluginfile.php/{$context->id}/mod_hvp/content/{$this->content['id']}",
+            'metadata'        => $this->content['metadata'],
+            'contentUserData' => array(
+                0 => content_user_data::load_pre_loaded_user_data($this->content['id'])
+            )
+        );
+
+        $this->embedtype = isset($options->forceembedtype) ? $options->forceembedtype : \H5PCore::determineEmbedType(
+            $this->content['embedType'], $this->content['library']['embedTypes']
+        );
+
+        $this->files = $this->getdependencyfiles();
+        $this->generateassets();
+    }
+
+    /**
+     * Filtered and potentially altered parameters
+     *
+     * @return Object|string
+     */
+    private function getfilteredparameters() {
+        global $PAGE;
+
+        $safeparameters = $this->core->filterParameters($this->content);
+        $decodedparams  = json_decode($safeparameters);
+        $hvpoutput      = $PAGE->get_renderer('mod_hvp');
+        $hvpoutput->hvp_alter_filtered_parameters(
+            $decodedparams,
+            $this->content['library']['name'],
+            $this->content['library']['majorVersion'],
+            $this->content['library']['minorVersion']
+        );
+        $safeparameters = json_encode($decodedparams);
+
+        return $safeparameters;
+    }
+
+    /**
+     * Export path for settings
+     *
+     * @param $downloadenabled
+     *
+     * @return string
+     */
+    private function getexportsettings($downloadenabled) {
+        global $CFG;
+
+        if ( ! $downloadenabled || (isset($CFG->mod_hvp_export) && $CFG->mod_hvp_export === false)) {
+            return '';
+        }
+
+        $modulecontext = \context_module::instance($this->cm->id);
+        $slug          = $this->content['slug'] ? $this->content['slug'] . '-' : '';
+        $url           = \moodle_url::make_pluginfile_url($modulecontext->id,
+            'mod_hvp',
+            'exports',
+            '',
+            '',
+            "{$slug}{$this->content['id']}.h5p"
+        );
+
+        return $url->out();
+    }
+
+    /**
+     * Embed code for settings
+     *
+     * @param $embedenabled
+     *
+     * @return string
+     */
+    private function getembedcode($embedenabled) {
+        if ( ! $embedenabled) {
+            return '';
+        }
+
+        $root = self::getsiteroot();
+        $embedurl = new \moodle_url("{$root}/mod/hvp/embed.php?id={$this->cm->id}");
+        $title = isset($this->content['metadata']['a11yTitle'])
+            ? $this->content['metadata']['a11yTitle']
+            : (isset($this->content['metadata']['title'])
+                ? $this->content['metadata']['title']
+                : ''
+            );
+
+        return "<iframe src=\"{$embedurl->out()}\" width=\":w\" height=\":h\" frameborder=\"0\" " .
+               "allowfullscreen=\"allowfullscreen\" title=\"{$title}\"></iframe>";
+    }
+
+    /**
+     * Resizing script for settings
+     *
+     * @param $embedenabled
+     *
+     * @return string
+     */
+    private function getresizecode($embedenabled) {
+        if ( ! $embedenabled) {
+            return '';
+        }
+
+        $resizeurl = new \moodle_url(self::getsiteroot() . '/mod/hvp/library/js/h5p-resizer.js');
+
+        return "<script src=\"{$resizeurl->out()}\" charset=\"UTF-8\"></script>";
+    }
+
+    /**
+     * Finds library dependencies of view
+     *
+     * @return array Files that the view has dependencies to
+     */
+    private function getdependencyfiles() {
+        global $PAGE;
+
+        $preloadeddeps = $this->core->loadContentDependencies($this->content['id'], 'preloaded');
+        $files         = $this->core->getDependenciesFiles($preloadeddeps);
+
+        // Add additional asset files if required.
+        $hvpoutput = $PAGE->get_renderer('mod_hvp');
+        $hvpoutput->hvp_alter_scripts($files['scripts'], $preloadeddeps, $this->embedtype);
+        $hvpoutput->hvp_alter_styles($files['styles'], $preloadeddeps, $this->embedtype);
+
+        return $files;
+    }
+
+    /**
+     * Generates assets depending on embed type
+     */
+    private function generateassets() {
+        if ($this->embedtype === 'div') {
+            $context = \context_system::instance();
+            $hvppath = "/pluginfile.php/{$context->id}/mod_hvp";
+
+            // Schedule JavaScripts for loading through Moodle.
+            foreach ($this->files['scripts'] as $script) {
+                $url = $script->path . $script->version;
+
+                // Add URL prefix if not external.
+                $isexternal = strpos($script->path, '://');
+                if ($isexternal === false) {
+                    $url = $hvppath . $url;
+                }
+                $this->settings['loadedJs'][] = $url;
+                $this->jsrequires[]           = new \moodle_url($isexternal ? $url : self::getsiteroot() . $url);
+            }
+
+            // Schedule stylesheets for loading through Moodle.
+            foreach ($this->files['styles'] as $style) {
+                $url = $style->path . $style->version;
+
+                // Add URL prefix if not external.
+                $isexternal = strpos($style->path, '://');
+                if ($isexternal === false) {
+                    $url = $hvppath . $url;
+                }
+                $this->settings['loadedCss'][] = $url;
+                $this->cssrequires[]           = new \moodle_url($isexternal ? $url : self::getsiteroot() . $url);
+            }
+        } else {
+            // JavaScripts and stylesheets will be loaded through h5p.js.
+            $cid                                           = 'cid-' . $this->content['id'];
+            $this->settings['contents'][ $cid ]['scripts'] = $this->core->getAssetsUrls($this->files['scripts']);
+            $this->settings['contents'][ $cid ]['styles']  = $this->core->getAssetsUrls($this->files['styles']);
+        }
+    }
+
+    public function getcontent() {
+        return $this->content;
+    }
+
+    /**
+     * Logs viewed to all handlers
+     */
+    public function logviewed() {
+        $this->logh5pviewedevent();
+        $this->logcompletioncriteriaviewed();
+        $this->triggermoduleviewedevent();
+    }
+
+    /**
+     * Logs content viewed to H5P core
+     */
+    public function logh5pviewedevent() {
+        new event(
+            'content', null,
+            $this->content['id'], $this->content['title'],
+            $this->content['library']['name'],
+            $this->content['library']['majorVersion'] . '.' . $this->content['library']['minorVersion']
+        );
+    }
+
+    /**
+     * Logs activity viewed to completion criterias
+     */
+    public function logcompletioncriteriaviewed() {
+        $completion = new \completion_info($this->course);
+        $completion->set_module_viewed($this->cm);
+    }
+
+    /**
+     * Allows observers to act on viewed event
+     */
+    public function triggermoduleviewedevent() {
+        $event = event\course_module_viewed::create(array(
+            'objectid' => $this->cm->instance,
+            'context'  => \context_module::instance($this->cm->id)
+        ));
+        $event->add_record_snapshot('course_modules', $this->cm);
+        $event->trigger();
+    }
+
+
+    /**
+     * Adds js assets to current page
+     */
+    public function addassetstopage() {
+        global $PAGE;
+
+        foreach ($this->jsrequires as $script) {
+            $PAGE->requires->js($script, true);
+        }
+
+        foreach ($this->cssrequires as $css) {
+            $PAGE->requires->css($css);
+        }
+
+        // Print JavaScript settings to page.
+        $PAGE->requires->data_for_js('H5PIntegration', $this->settings, true);
+
+        // Add xAPI collector script.
+        $PAGE->requires->js(new \moodle_url(self::getsiteroot() . '/mod/hvp/xapi-collector.js'), true);
+    }
+
+    /**
+     * Outputs h5p view
+     */
+    public function outputview() {
+        if ($this->embedtype === 'div') {
+            echo "<div class=\"h5p-content\" data-content-id=\"{$this->content['id']}\"></div>";
+        } else {
+            $title = isset($this->content['metadata']['a11yTitle'])
+                ? $this->content['metadata']['a11yTitle']
+                : (isset($this->content['metadata']['title'])
+                    ? $this->content['metadata']['title']
+                    : ''
+                );
+
+            echo "<div class=\"h5p-iframe-wrapper\">" .
+                 "<iframe id=\"h5p-iframe-{$this->content['id']}\"" .
+                 " class=\"h5p-iframe\"" .
+                 " data-content-id=\"{$this->content['id']}\"" .
+                 " style=\"height:1px\"" .
+                 " src=\"about:blank\"" .
+                 " frameBorder=\"0\"" .
+                 " scrolling=\"no\"" .
+                 " title=\"{$title}\">" .
+                 "</iframe>" .
+                 "</div>";
+        }
+    }
+
+    /**
+     * Checks if content is valid, prints an error if not
+     */
+    public function validatecontent() {
+        if ($this->content === null) {
+            print_error('invalidhvp', 'mod_hvp');
+        }
+    }
+
+    /**
+     * Gets the site root absolute address
+     *
+     * @return string Root address for the site
+     */
+    public static function getsiteroot() {
+        global $CFG;
+        // In Moodle 3.4 version wwwroot is always the same as httpswwwroot.
+        if ($CFG->version < 2017111300) {
+            return $CFG->httpswwwroot;
+        }
+
+        return $CFG->wwwroot;
+    }
+}

classes/xapi_result.php

@@ -0,0 +1,154 @@
+<?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/>.
+
+/**
+ * The mod_hvp content user data.
+ *
+ * @package    mod_hvp
+ * @since      Moodle 2.7
+ * @copyright  2017 Joubel AS
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace mod_hvp;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Class xapi_result handles xapi results and corresponding db operations.
+ *
+ * @package mod_hvp
+ */
+class xapi_result {
+
+    /**
+     * Handle xapi results endpoint
+     */
+    public static function handle_ajax() {
+        // Validate token.
+        if (!self::validate_token()) {
+            $core = framework::instance();
+            \H5PCore::ajaxError($core->h5pF->t('Invalid security token.'),
+                'INVALID_TOKEN');
+            return;
+        }
+
+        $cm = get_coursemodule_from_id('hvp', required_param('contextId', PARAM_INT));
+        if (!$cm) {
+            \H5PCore::ajaxError('No such content');
+            http_response_code(404);
+            return;
+        }
+
+        $xapiresult = required_param('xAPIResult', PARAM_RAW);
+
+        // Validate.
+        $context = \context_module::instance($cm->id);
+        if (!has_capability('mod/hvp:saveresults', $context)) {
+            \H5PCore::ajaxError(get_string('nopermissiontosaveresult', 'hvp'));
+            return;
+        }
+
+        $xapijson = json_decode($xapiresult);
+        if (!$xapijson) {
+            \H5PCore::ajaxError('Invalid json in xAPI data.');
+            return;
+        }
+
+        if (!self::validate_xapi_data($xapijson)) {
+            \H5PCore::ajaxError('Invalid xAPI data.');
+            return;
+        }
+
+        // Delete any old results.
+        self::remove_xapi_data($cm->instance);
+
+        // Store results.
+        self::store_xapi_data($cm->instance, $xapijson);
+
+        // Successfully inserted xAPI result.
+        \H5PCore::ajaxSuccess();
+    }
+
+    /**
+     * Validate xAPI results token
+     *
+     * @return bool True if token was valid
+     */
+    private static function validate_token() {
+        $token = required_param('token', PARAM_ALPHANUM);
+        return \H5PCore::validToken('xapiresult', $token);
+
+    }
+
+    /**
+     * Validate xAPI data
+     *
+     * @param object $xapidata xAPI data
+     *
+     * @return bool True if valid data
+     */
+    private static function validate_xapi_data($xapidata) {
+        $xapidata = new \H5PReportXAPIData($xapidata);
+        return $xapidata->validateData();
+    }
+
+    /**
+     * Store xAPI result(s)
+     *
+     * @param int $contentid Content id
+     * @param object $xapidata xAPI data
+     * @param int $parentid Parent id
+     */
+    private static function store_xapi_data($contentid, $xapidata, $parentid = null) {
+        global $DB, $USER;
+
+        $xapidata = new \H5PReportXAPIData($xapidata, $parentid);
+        $insertedid = $DB->insert_record('hvp_xapi_results', (object) array(
+            'content_id' => $contentid,
+            'user_id' => $USER->id,
+            'parent_id' => $xapidata->getParentID(),
+            'interaction_type' => $xapidata->getInteractionType(),
+            'description' => $xapidata->getDescription(),
+            'correct_responses_pattern' => $xapidata->getCorrectResponsesPattern(),
+            'response' => $xapidata->getResponse(),
+            'additionals' => $xapidata->getAdditionals(),
+            'raw_score' => $xapidata->getScoreRaw(),
+            'max_score' => $xapidata->getScoreMax(),
+        ));
+
+        // Save sub content statements data.
+        if ($xapidata->isCompound()) {
+            foreach ($xapidata->getChildren($contentid) as $child) {
+                self::store_xapi_data($contentid, $child, $insertedid);
+            }
+        }
+    }
+
+    /**
+     * Remove xAPI result(s)
+     *
+     * @param int $contentid Content id
+     */
+    private static function remove_xapi_data($contentid) {
+        global $DB, $USER;
+
+        $DB->delete_records('hvp_xapi_results', array(
+            'content_id' => $contentid,
+            'user_id' => $USER->id
+        ));
+    }
+}

content_hub_registration.php

@@ -0,0 +1,54 @@
+<?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/>.
+/**
+ * Responsible for displaying the content upgrade page
+ *
+ * @package    mod_hvp
+ * @copyright  2020 Joubel AS <contact@joubel.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+use mod_hvp\content_hub_service;
+
+require_once("../../config.php");
+require_once($CFG->libdir.'/adminlib.php');
+require_once("locallib.php");
+
+global $PAGE, $SITE, $OUTPUT, $CFG;
+
+// No guest autologin.
+require_login(0, false);
+
+$context = \context_system::instance();
+require_capability('mod/hvp:contenthubregistration', $context);
+
+$pageurl = new moodle_url('/mod/hvp/content_hub_registration.php');
+$PAGE->set_context(context_system::instance());
+$PAGE->set_url($pageurl);
+$PAGE->set_title("{$SITE->shortname}: " . get_string('upgrade', 'hvp'));
+$PAGE->set_heading(get_string('contenthub:settings:heading', 'mod_hvp'));
+
+$settings = content_hub_service::get_registration_ui_settings();
+$PAGE->requires->data_for_js('H5PSettings', $settings, true);
+$PAGE->requires->js(new moodle_url('library/js/h5p-hub-registration.js'), true);
+$PAGE->requires->css(new moodle_url('library/styles/h5p.css'));
+$PAGE->requires->css(new moodle_url('library/styles/h5p-hub-registration.css'));
+
+echo $OUTPUT->header();
+
+echo $OUTPUT->render_from_template('mod_hvp/content_hub_registration', []);
+$PAGE->requires->js_call_amd('mod_hvp/contenthubregistration', 'init');
+
+echo $OUTPUT->footer();

dataviews.js

@@ -0,0 +1,43 @@
+/* global H5PDataView */
+(function($) {
+
+    /**
+   * Creates a new dataview.
+   *
+   * @private
+   * @param {object} dataView Structure
+   * @param {string} dataView.source AJAX URL for data view
+   * @param {object[]} dataView.headers Header text and props
+   * @param {boolean[]} dataView.filters Which fields to allow filtering for
+   * @param {object} dataView.order Default order by and direction
+   * @param {object} dataView.l10n Translations
+   * @param {Element} wrapper Where in the DOM should the dataview be appended
+   * @param {function} loaded Callback for when the dataview is ready
+   */
+    var createDataView = function(dataView, wrapper, loaded) {
+        new H5PDataView(
+        wrapper,
+        dataView.source,
+        dataView.headers,
+        dataView.l10n,
+        undefined,
+        dataView.filters,
+        loaded,
+        dataView.order
+        );
+    };
+
+    // Create data views when page is done loading.
+    $(document).ready(function() {
+        for (var id in H5PIntegration.dataViews) {
+            if (!H5PIntegration.dataViews.hasOwnProperty(id)) {
+                continue;
+            }
+
+            var wrapper = $('#' + id).get(0);
+            if (wrapper !== undefined) {
+                createDataView(H5PIntegration.dataViews[id], wrapper);
+            }
+        }
+    });
+})(H5P.jQuery);

db/access.php

@@ -0,0 +1,207 @@
+<?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/>.
+
+/**
+ * Capability definitions for the hvp module.
+ *
+ * Available archetypes:
+ *  manager
+ *  coursecreator
+ *  editingteacher
+ *  teacher
+ *  student
+ *  guest
+ *  user
+ *  frontpage
+ *
+ * @package    mod_hvp
+ * @copyright  2016 Joubel AS <contact@joubel.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+$capabilities = array(
+
+    'mod/hvp:view' => array(
+        'captype' => 'read',
+        'contextlevel' => CONTEXT_MODULE,
+        'archetypes' => array(
+            'manager' => CAP_ALLOW,
+            'editingteacher' => CAP_ALLOW,
+            'teacher' => CAP_ALLOW,
+            'student' => CAP_ALLOW,
+            'guest' => CAP_ALLOW
+        )
+    ),
+
+    'mod/hvp:addinstance' => array(
+        'riskbitmask' => RISK_SPAM | RISK_XSS,
+        'captype' => 'write',
+        'contextlevel' => CONTEXT_COURSE,
+        'archetypes' => array(
+            'editingteacher' => CAP_ALLOW,
+            'manager' => CAP_ALLOW
+        ),
+        'clonepermissionsfrom' => 'moodle/course:manageactivities'
+    ),
+
+    'mod/hvp:manage' => array(
+        'riskbitmask' => RISK_SPAM | RISK_XSS,
+        'captype' => 'write',
+        'contextlevel' => CONTEXT_MODULE,
+        'archetypes' => array(
+            'editingteacher' => CAP_ALLOW,
+            'manager' => CAP_ALLOW
+        ),
+        'clonepermissionsfrom' => 'mod/hvp:addinstance'
+    ),
+
+    'mod/hvp:share' => array(
+        'riskbitmask' => RISK_SPAM,
+        'captype' => 'write',
+        'contextlevel' => CONTEXT_MODULE,
+        'archetypes' => array(
+            'editingteacher' => CAP_ALLOW,
+            'manager' => CAP_ALLOW
+        ),
+        'clonepermissionsfrom' => 'mod/hvp:addinstance'
+    ),
+
+    'mod/hvp:getexport' => array(
+        'captype' => 'read',
+        'contextlevel' => CONTEXT_MODULE,
+        'archetypes' => array(
+            'manager' => CAP_ALLOW,
+            'editingteacher' => CAP_ALLOW,
+            'teacher' => CAP_ALLOW
+        )
+    ),
+
+    'mod/hvp:getembedcode' => array(
+        'captype' => 'read',
+        'contextlevel' => CONTEXT_MODULE,
+        'archetypes' => array(
+            'manager' => CAP_ALLOW,
+            'editingteacher' => CAP_ALLOW,
+            'teacher' => CAP_ALLOW
+        )
+    ),
+
+    'mod/hvp:saveresults' => array(
+        'riskbitmask' => RISK_SPAM,
+        'captype' => 'write',
+        'contextlevel' => CONTEXT_MODULE,
+        'archetypes' => array(
+            'student' => CAP_ALLOW
+        )
+    ),
+
+    'mod/hvp:savecontentuserdata' => array(
+        'captype' => 'write',
+        'contextlevel' => CONTEXT_MODULE,
+        'archetypes' => array(
+            'manager' => CAP_ALLOW,
+            'editingteacher' => CAP_ALLOW,
+            'teacher' => CAP_ALLOW,
+            'student' => CAP_ALLOW
+        )
+    ),
+
+    'mod/hvp:viewresults' => array(
+        'captype' => 'write',
+        'contextlevel' => CONTEXT_MODULE,
+        'archetypes' => array(
+            'student' => CAP_ALLOW
+        )
+    ),
+
+    'mod/hvp:viewallresults' => array(
+        'captype' => 'read',
+        'contextlevel' => CONTEXT_MODULE,
+        'archetypes' => array(
+            'manager' => CAP_ALLOW,
+            'editingteacher' => CAP_ALLOW,
+            'teacher' => CAP_ALLOW
+        )
+    ),
+
+    'mod/hvp:restrictlibraries' => array(
+        'captype' => 'write',
+        'contextlevel' => CONTEXT_SYSTEM,
+        'archetypes' => array(
+          'manager' => CAP_ALLOW
+        )
+    ),
+
+    'mod/hvp:userestrictedlibraries' => array(
+        'captype' => 'write',
+        'contextlevel' => CONTEXT_COURSE,
+        'archetypes' => array(
+            'manager' => CAP_ALLOW
+        )
+    ),
+
+    'mod/hvp:updatelibraries' => array(
+        'captype' => 'write',
+        'contextlevel' => CONTEXT_SYSTEM,
+        'archetypes' => array(
+            'manager' => CAP_ALLOW
+        )
+    ),
+
+    'mod/hvp:getcachedassets' => array(
+        'captype' => 'read',
+        'contextlevel' => CONTEXT_SYSTEM,
+        'archetypes' => array(
+            'manager' => CAP_ALLOW,
+            'editingteacher' => CAP_ALLOW,
+            'teacher' => CAP_ALLOW,
+            'student' => CAP_ALLOW,
+            'user' => CAP_ALLOW,
+            'guest' => CAP_ALLOW
+        )
+    ),
+
+    'mod/hvp:installrecommendedh5plibraries' => array(
+        'captype' => 'write',
+        'contextlevel' => CONTEXT_COURSE,
+        'archetypes' => array(
+          'manager' => CAP_ALLOW
+        )
+    ),
+
+    // Receive a confirmation message of own h5p submission.
+    'mod/hvp:emailconfirmsubmission' => array(
+        'captype' => 'read',
+        'contextlevel' => CONTEXT_MODULE,
+        'archetypes' => array()
+    ),
+
+    // Receive a notification message of other peoples' h5p submissions.
+    'mod/hvp:emailnotifysubmission' => array(
+        'captype' => 'read',
+        'contextlevel' => CONTEXT_MODULE,
+        'archetypes' => array()
+    ),
+
+    'mod/hvp:contenthubregistration' => [
+        'captype' => 'write',
+        'contextlevel' => CONTEXT_SYSTEM,
+        'archetypes' => [], // Only admins by default.
+    ],
+
+);

db/events.php

@@ -0,0 +1,38 @@
+<?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/>.
+
+/**
+ * Add event handlers for H5P
+ *
+ * @package    mod_hvp
+ * @category   event
+ * @copyright  2020 Joubel AS <contact@joubel.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+
+defined('MOODLE_INTERNAL') || die();
+
+$observers = array(
+
+    // Handle attempt submitted event, as a way to send confirmation messages asynchronously.
+    array(
+        'eventname'   => '\mod_hvp\event\attempt_submitted',
+        'includefile' => '/mod/hvp/locallib.php',
+        'callback'    => 'hvp_attempt_submitted_handler',
+        'internal'    => false
+    ),
+);

db/install.php

@@ -0,0 +1,54 @@
+<?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/>.
+
+defined('MOODLE_INTERNAL') || die();
+
+function xmldb_hvp_install() {
+
+    // Try to install all the default content types.
+    require_once(__DIR__ . '/../autoloader.php');
+
+    // Fetch info about library updates.
+    $core = \mod_hvp\framework::instance('core');
+    $core->fetchLibrariesMetadata();
+
+    // Check that plugin is set up correctly.
+    $core->checkSetupForRequirements();
+
+    // Print any messages.
+    echo '<h3>' . get_string('welcomeheader', 'hvp') . '</h3>' .
+         '<p>' .
+         get_string('welcomegettingstarted', 'hvp', array(
+             'moodle_tutorial' => 'href="https://h5p.org/moodle" target="_blank"',
+             'example_content' => 'href="https://h5p.org/content-types-and-applications" target="_blank"'
+         )) .
+         '</p>' .
+         '<p>' .
+         get_string('welcomecommunity', 'hvp', array(
+             'forums' => 'href="https://h5p.org/forum" target="_blank"'
+         )) .
+         '</p>' .
+         '<p>' . get_string('welcomecontactus', 'hvp',
+            'href="https://h5p.org/contact" target="_blank"') .
+         '</p>';
+
+    // Notify of communication with H5P Hub.
+    // @codingStandardsIgnoreLine
+    echo "<p>H5P fetches content types directly from the H5P Hub. In order to do this the H5P plugin will communicate with the Hub once a day to fetch information about new and updated content types. It will send in anonymous data to the Hub about H5P usage. Read more at <a href=\"https://h5p.org/tracking-the-usage-of-h5p\">the plugin communication page at H5P.org</a>.</p>";
+
+    \mod_hvp\framework::printMessages('info', \mod_hvp\framework::messages('info'));
+    \mod_hvp\framework::printMessages('error', \mod_hvp\framework::messages('error'));
+}

db/install.xml

@@ -0,0 +1,255 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<XMLDB PATH="mod/hvp/db" VERSION="20190731" COMMENT="XMLDB file for Moodle mod/hvp"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:noNamespaceSchemaLocation="../../../lib/xmldb/xmldb.xsd"
+>
+  <TABLES>
+    <TABLE NAME="hvp" COMMENT="Activity data">
+      <FIELDS>
+        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="true"/>
+        <FIELD NAME="course" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
+        <FIELD NAME="name" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="intro" TYPE="text" NOTNULL="false" SEQUENCE="false"/>
+        <FIELD NAME="introformat" TYPE="int" LENGTH="4" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
+        <FIELD NAME="json_content" TYPE="text" NOTNULL="true" SEQUENCE="false" COMMENT="The content in json format"/>
+        <FIELD NAME="embed_type" TYPE="char" LENGTH="127" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="disable" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
+        <FIELD NAME="main_library_id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false" COMMENT="The library we first instanciate for this node"/>
+        <FIELD NAME="content_type" TYPE="char" LENGTH="127" NOTNULL="false" SEQUENCE="false" COMMENT="Content type as defined in h5p.json"/>
+        <FIELD NAME="authors" TYPE="text" NOTNULL="false" SEQUENCE="false" COMMENT="List of authors in json format"/>
+        <FIELD NAME="source" TYPE="char" LENGTH="255" NOTNULL="false" SEQUENCE="false" COMMENT="Link to the source, could also be citation"/>
+        <FIELD NAME="year_from" TYPE="int" LENGTH="4" NOTNULL="false" SEQUENCE="false" COMMENT="Start year for copyright"/>
+        <FIELD NAME="year_to" TYPE="int" LENGTH="4" NOTNULL="false" SEQUENCE="false" COMMENT="End year for copyright"/>
+        <FIELD NAME="license" TYPE="char" LENGTH="63" NOTNULL="false" SEQUENCE="false" COMMENT="License name of the content"/>
+        <FIELD NAME="license_version" TYPE="char" LENGTH="15" NOTNULL="false" SEQUENCE="false" COMMENT="Version of the license used for the content"/>
+        <FIELD NAME="changes" TYPE="text" NOTNULL="false" SEQUENCE="false" COMMENT="List of changes in json format"/>
+        <FIELD NAME="license_extras" TYPE="text" NOTNULL="false" SEQUENCE="false" COMMENT="Extra licensing terms"/>
+        <FIELD NAME="author_comments" TYPE="text" NOTNULL="false" SEQUENCE="false" COMMENT="Comments for the editor"/>
+        <FIELD NAME="default_language" TYPE="char" LENGTH="32" NOTNULL="false" SEQUENCE="false" COMMENT="Default language for common fields"/>
+        <FIELD NAME="filtered" TYPE="text" NOTNULL="false" SEQUENCE="false" COMMENT="Filtered version of json_content"/>
+        <FIELD NAME="slug" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false" COMMENT="Human readable content identifier that is unique"/>
+        <FIELD NAME="timecreated" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
+        <FIELD NAME="timemodified" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
+        <FIELD NAME="completionpass" TYPE="int" LENGTH="1" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
+        <FIELD NAME="shared" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
+        <FIELD NAME="synced" TYPE="int" LENGTH="10" NOTNULL="false" SEQUENCE="false"/>
+        <FIELD NAME="hub_id" TYPE="int" LENGTH="10" NOTNULL="false" SEQUENCE="false"/>
+        <FIELD NAME="a11y_title" TYPE="char" LENGTH="255" NOTNULL="false" SEQUENCE="false"/>
+      </FIELDS>
+      <KEYS>
+        <KEY NAME="primary" TYPE="primary" FIELDS="id"/>
+      </KEYS>
+    </TABLE>
+    <TABLE NAME="hvp_xapi_results" COMMENT="Stored xAPI events">
+      <FIELDS>
+        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="true"/>
+        <FIELD NAME="content_id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="user_id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="parent_id" TYPE="int" LENGTH="10" NOTNULL="false" SEQUENCE="false"/>
+        <FIELD NAME="interaction_type" TYPE="char" LENGTH="127" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="description" TYPE="text" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="correct_responses_pattern" TYPE="text" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="response" TYPE="text" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="additionals" TYPE="text" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="raw_score" TYPE="int" LENGTH="6" NOTNULL="false" SEQUENCE="false"/>
+        <FIELD NAME="max_score" TYPE="int" LENGTH="6" NOTNULL="false" SEQUENCE="false"/>
+      </FIELDS>
+      <KEYS>
+        <KEY NAME="primary" TYPE="primary" FIELDS="id"/>
+      </KEYS>
+      <INDEXES>
+        <INDEX NAME="results" UNIQUE="false" FIELDS="content_id, user_id"/>
+      </INDEXES>
+    </TABLE>
+    <TABLE NAME="hvp_content_user_data" COMMENT="Stores user data about the content">
+      <FIELDS>
+        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="true"/>
+        <FIELD NAME="user_id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false" COMMENT="Id for the user answering this H5P"/>
+        <FIELD NAME="hvp_id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false" COMMENT="Id of hvp content in the 'hvp' table"/>
+        <FIELD NAME="sub_content_id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false" COMMENT="Subcontent id of hvp content, 0 if this is not subcontent"/>
+        <FIELD NAME="data_id" TYPE="char" LENGTH="127" NOTNULL="false" SEQUENCE="false" COMMENT="The data type identifier"/>
+        <FIELD NAME="data" TYPE="text" NOTNULL="false" SEQUENCE="false" COMMENT="The actual user data that was stored."/>
+        <FIELD NAME="preloaded" TYPE="int" LENGTH="1" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="delete_on_content_change" TYPE="int" LENGTH="1" NOTNULL="true" SEQUENCE="false"/>
+      </FIELDS>
+      <KEYS>
+        <KEY NAME="primary" TYPE="primary" FIELDS="id"/>
+      </KEYS>
+    </TABLE>
+    <TABLE NAME="hvp_libraries" COMMENT="Stores information about libraries.">
+      <FIELDS>
+        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="true" COMMENT="Primary Key: The id of the library"/>
+        <FIELD NAME="machine_name" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false" COMMENT="The library machine name"/>
+        <FIELD NAME="title" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false" COMMENT="The human readable name of this library"/>
+        <FIELD NAME="major_version" TYPE="int" LENGTH="4" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="minor_version" TYPE="int" LENGTH="4" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="patch_version" TYPE="int" LENGTH="4" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="runnable" TYPE="int" LENGTH="1" NOTNULL="true" SEQUENCE="false" COMMENT="Can this library be started by the module? i.e. not a dependency."/>
+        <FIELD NAME="fullscreen" TYPE="int" LENGTH="1" NOTNULL="true" DEFAULT="0" SEQUENCE="false" COMMENT="Display fullscreen button"/>
+        <FIELD NAME="embed_types" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="preloaded_js" TYPE="text" NOTNULL="false" SEQUENCE="false" COMMENT="Comma separated list of scripts to load."/>
+        <FIELD NAME="preloaded_css" TYPE="text" NOTNULL="false" SEQUENCE="false" COMMENT="Comma separated list of stylesheets to load."/>
+        <FIELD NAME="drop_library_css" TYPE="text" NOTNULL="false" SEQUENCE="false" COMMENT="List of libraries that should not have CSS included if this library is used. Comma separated list."/>
+        <FIELD NAME="semantics" TYPE="text" NOTNULL="true" SEQUENCE="false" COMMENT="The semantics definition in json format"/>
+        <FIELD NAME="restricted" TYPE="int" LENGTH="1" NOTNULL="true" DEFAULT="0" SEQUENCE="false" COMMENT="Restricts the ability to create new content using this library"/>
+        <FIELD NAME="tutorial_url" TYPE="char" LENGTH="1000" NOTNULL="false" SEQUENCE="false" COMMENT="URL to a tutorial for this library"/>
+        <FIELD NAME="has_icon" TYPE="int" LENGTH="1" NOTNULL="true" DEFAULT="0" SEQUENCE="false" COMMENT="Whether or not this library contains an icon.svg"/>
+        <FIELD NAME="add_to" TYPE="text" NOTNULL="false" SEQUENCE="false" COMMENT="Plugin configuration data"/>
+        <FIELD NAME="metadata_settings" TYPE="text" NOTNULL="false" SEQUENCE="false" COMMENT="Metadata settings"/>
+      </FIELDS>
+      <KEYS>
+        <KEY NAME="primary" TYPE="primary" FIELDS="id"/>
+      </KEYS>
+      <INDEXES>
+        <INDEX NAME="meta" UNIQUE="false" FIELDS="machine_name, major_version, minor_version, patch_version, runnable"/>
+      </INDEXES>
+    </TABLE>
+    <TABLE NAME="hvp_libraries_hub_cache" COMMENT="Caches content types from the H5P hub.">
+      <FIELDS>
+        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="true" COMMENT="Primary Key: The id of the library"/>
+        <FIELD NAME="machine_name" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false" COMMENT="The library machine name"/>
+        <FIELD NAME="major_version" TYPE="int" LENGTH="4" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="minor_version" TYPE="int" LENGTH="4" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="patch_version" TYPE="int" LENGTH="4" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="h5p_major_version" TYPE="int" LENGTH="4" NOTNULL="false" SEQUENCE="false" COMMENT="The major version required of H5P core"/>
+        <FIELD NAME="h5p_minor_version" TYPE="int" LENGTH="4" NOTNULL="false" SEQUENCE="false" COMMENT="The minor version required of H5P core"/>
+        <FIELD NAME="title" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false" COMMENT="The human readable name of this library"/>
+        <FIELD NAME="summary" TYPE="text" NOTNULL="true" SEQUENCE="false" COMMENT="Short description of library"/>
+        <FIELD NAME="description" TYPE="text" NOTNULL="true" SEQUENCE="false" COMMENT="Long description of library"/>
+        <FIELD NAME="icon" TYPE="char" LENGTH="511" NOTNULL="true" SEQUENCE="false" COMMENT="URL to icon"/>
+        <FIELD NAME="created_at" TYPE="int" LENGTH="11" NOTNULL="true" SEQUENCE="false" COMMENT="Time that the library was uploaded"/>
+        <FIELD NAME="updated_at" TYPE="int" LENGTH="11" NOTNULL="true" SEQUENCE="false" COMMENT="Time that the library has its latest update"/>
+        <FIELD NAME="is_recommended" TYPE="int" LENGTH="1" NOTNULL="true" SEQUENCE="false" COMMENT="Whether the library is recommended by the HUB moderators"/>
+        <FIELD NAME="popularity" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false" COMMENT="How many times the library has been downloaded"/>
+        <FIELD NAME="screenshots" TYPE="text" NOTNULL="false" SEQUENCE="false" COMMENT="Screenshot URLs json encoded"/>
+        <FIELD NAME="license" TYPE="text" NOTNULL="false" SEQUENCE="false" COMMENT="Library license(s) json encoded"/>
+        <FIELD NAME="example" TYPE="char" LENGTH="511" NOTNULL="true" SEQUENCE="false" COMMENT="URL to example content for this library"/>
+        <FIELD NAME="tutorial" TYPE="char" LENGTH="511" NOTNULL="false" SEQUENCE="false" COMMENT="Tutorial URL"/>
+        <FIELD NAME="keywords" TYPE="text" NOTNULL="false" SEQUENCE="false" COMMENT="Keywords for library json encoded"/>
+        <FIELD NAME="categories" TYPE="text" NOTNULL="false" SEQUENCE="false" COMMENT="Categories for library json encoded"/>
+        <FIELD NAME="owner" TYPE="char" LENGTH="511" NOTNULL="false" SEQUENCE="false" COMMENT="Owner of the library"/>
+      </FIELDS>
+      <KEYS>
+        <KEY NAME="primary" TYPE="primary" FIELDS="id"/>
+      </KEYS>
+    </TABLE>
+    <TABLE NAME="hvp_content_hub_cache" COMMENT="Caches content metadata options from the H5P OER Hub.">
+      <FIELDS>
+        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="true"/>
+        <FIELD NAME="language" TYPE="char" LENGTH="31" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="json" TYPE="text" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="last_checked" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
+      </FIELDS>
+      <KEYS>
+        <KEY NAME="primary" TYPE="primary" FIELDS="id"/>
+      </KEYS>
+      <INDEXES>
+        <INDEX NAME="language" UNIQUE="true" FIELDS="language"/>
+      </INDEXES>
+    </TABLE>
+    <TABLE NAME="hvp_libraries_libraries" COMMENT="Library dependencies">
+      <FIELDS>
+        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="true"/>
+        <FIELD NAME="library_id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false" COMMENT="Primary Key: The id of a H5P library."/>
+        <FIELD NAME="required_library_id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false" COMMENT="The dependency to load"/>
+        <FIELD NAME="dependency_type" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false" COMMENT="'preloaded, dynamic, or editor'"/>
+      </FIELDS>
+      <KEYS>
+        <KEY NAME="primary" TYPE="primary" FIELDS="id"/>
+      </KEYS>
+    </TABLE>
+    <TABLE NAME="hvp_libraries_languages" COMMENT="Translations for libraries">
+      <FIELDS>
+        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="true"/>
+        <FIELD NAME="library_id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="language_code" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="language_json" TYPE="text" NOTNULL="true" SEQUENCE="false" COMMENT="The translations defined in json format"/>
+      </FIELDS>
+      <KEYS>
+        <KEY NAME="primary" TYPE="primary" FIELDS="id"/>
+      </KEYS>
+    </TABLE>
+    <TABLE NAME="hvp_libraries_cachedassets" COMMENT="Use to know which caches to clear when a library is updated">
+      <FIELDS>
+        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="true"/>
+        <FIELD NAME="library_id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="hash" TYPE="char" LENGTH="64" NOTNULL="true" SEQUENCE="false"/>
+      </FIELDS>
+      <KEYS>
+        <KEY NAME="primary" TYPE="primary" FIELDS="id"/>
+      </KEYS>
+      <INDEXES>
+        <INDEX NAME="relation" UNIQUE="true" FIELDS="library_id, hash"/>
+      </INDEXES>
+    </TABLE>
+    <TABLE NAME="hvp_contents_libraries" COMMENT="Store which library is used in which content.">
+      <FIELDS>
+        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="true"/>
+        <FIELD NAME="hvp_id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false" COMMENT="Identifier for a content found from the 'hvp' table"/>
+        <FIELD NAME="library_id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false" COMMENT="The identifier of a H5P library this content uses"/>
+        <FIELD NAME="dependency_type" TYPE="char" LENGTH="10" NOTNULL="true" SEQUENCE="false" COMMENT="dynamic, preloaded or editor"/>
+        <FIELD NAME="drop_css" TYPE="int" LENGTH="1" NOTNULL="true" SEQUENCE="false" COMMENT="1 if the preloaded css from the dependency is to be excluded"/>
+        <FIELD NAME="weight" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false" COMMENT="Determines the order in which the preloaded libraries will be loaded"/>
+      </FIELDS>
+      <KEYS>
+        <KEY NAME="primary" TYPE="primary" FIELDS="id"/>
+      </KEYS>
+      <INDEXES>
+        <INDEX NAME="meta" UNIQUE="false" FIELDS="drop_css"/>
+      </INDEXES>
+    </TABLE>
+    <TABLE NAME="hvp_events" COMMENT="Keep track of logged H5P events">
+      <FIELDS>
+        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="true"/>
+        <FIELD NAME="user_id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="created_at" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="type" TYPE="char" LENGTH="63" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="sub_type" TYPE="char" LENGTH="63" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="content_id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="content_title" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="library_name" TYPE="char" LENGTH="127" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="library_version" TYPE="char" LENGTH="31" NOTNULL="true" SEQUENCE="false"/>
+      </FIELDS>
+      <KEYS>
+        <KEY NAME="primary" TYPE="primary" FIELDS="id"/>
+      </KEYS>
+    </TABLE>
+    <TABLE NAME="hvp_tmpfiles" COMMENT="Keep track of files uploaded before content is saved">
+      <FIELDS>
+        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
+      </FIELDS>
+      <KEYS>
+        <KEY NAME="primary" TYPE="primary" FIELDS="id"/>
+      </KEYS>
+    </TABLE>
+    <TABLE NAME="hvp_counters" COMMENT="A set of global counters to keep track of H5P usage">
+      <FIELDS>
+        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="true"/>
+        <FIELD NAME="type" TYPE="char" LENGTH="63" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="library_name" TYPE="char" LENGTH="127" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="library_version" TYPE="char" LENGTH="31" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="num" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
+      </FIELDS>
+      <KEYS>
+        <KEY NAME="primary" TYPE="primary" FIELDS="id"/>
+      </KEYS>
+      <INDEXES>
+        <INDEX NAME="realkey" UNIQUE="false" FIELDS="type, library_name, library_version"/>
+      </INDEXES>
+    </TABLE>
+    <TABLE NAME="hvp_auth" COMMENT="Stores tokens for authenticating users for different actions">
+      <FIELDS>
+        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="true"/>
+        <FIELD NAME="user_id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false" COMMENT="Id of the user that created the token"/>
+        <FIELD NAME="created_at" TYPE="int" LENGTH="11" NOTNULL="true" SEQUENCE="false" COMMENT="Timestamp for when token was created"/>
+        <FIELD NAME="secret" TYPE="char" LENGTH="64" NOTNULL="true" SEQUENCE="false" COMMENT="Secret used to generate the authentication token"/>
+      </FIELDS>
+      <KEYS>
+        <KEY NAME="primary" TYPE="primary" FIELDS="id"/>
+      </KEYS>
+      <INDEXES>
+        <INDEX NAME="user_id" UNIQUE="true" FIELDS="user_id"/>
+      </INDEXES>
+    </TABLE>
+  </TABLES>
+</XMLDB>

db/messages.php

@@ -0,0 +1,40 @@
+<?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/>.
+
+/**
+ * Defines message providers (types of message sent) for the hvp module.
+ *
+ * @package   mod_hvp
+ * @copyright 2020 Joubel AS <contact@joubel.com>
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+$messageproviders = array(
+    // Notify teacher that a student has submitted an attempt.
+    'submission' => array(
+        'capability' => 'mod/hvp:emailnotifysubmission'
+    ),
+
+    // Confirm a student's quiz attempt.
+    'confirmation' => array(
+        'capability' => 'mod/hvp:emailconfirmsubmission',
+        'defaults' => array(
+            'airnotifier' => MESSAGE_PERMITTED + MESSAGE_DEFAULT_LOGGEDIN + MESSAGE_DEFAULT_LOGGEDOFF,
+        ),
+    ),
+);

db/mobile.php

@@ -0,0 +1,32 @@
+<?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/>.
+
+defined('MOODLE_INTERNAL') || die();
+
+$addons = array(
+    "mod_hvp" => array( // Plugin identifier.
+        'handlers' => array( // Different places where the plugin will display content.
+            'coursehvp' => array( // Handler unique name (alphanumeric).
+                'delegate'    => 'CoreCourseModuleDelegate', // Delegate (where to display the link to the plugin).
+                'method'      => 'mobile_course_view', // Main function in \mod_certificate\output\mobile.
+                'displaydata' => array(
+                    'icon'  => $CFG->wwwroot . '/mod/hvp/pix/icon.svg',
+                    'class' => '',
+                ),
+            )
+        )
+    )
+);

db/tasks.php

@@ -0,0 +1,63 @@
+<?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/>.
+/**
+ * Defines the task which looks for H5P updates.
+ *
+ * @package    mod_hvp
+ * @copyright  2016 Joubel AS <contact@joubel.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+$tasks = array(
+    array(
+        'classname' => 'mod_hvp\task\look_for_updates',
+        'blocking' => 0,
+        'minute' => 'R',
+        'hour' => 'R',
+        'day' => '*',
+        'dayofweek' => '*',
+        'month' => '*'
+    ),
+    array(
+        'classname' => 'mod_hvp\task\remove_tmpfiles',
+        'blocking' => 0,
+        'minute' => 'R',
+        'hour' => 'R',
+        'day' => '*',
+        'dayofweek' => '*',
+        'month' => '*'
+    ),
+    array(
+        'classname' => 'mod_hvp\task\remove_old_log_entries',
+        'blocking' => 0,
+        'minute' => 'R',
+        'hour' => 'R',
+        'day' => '*',
+        'dayofweek' => '*',
+        'month' => '*'
+    ),
+    array(
+        'classname' => 'mod_hvp\task\remove_old_auth_tokens',
+        'blocking' => 0,
+        'minute' => 'R',
+        'hour' => '*',
+        'day' => '*',
+        'dayofweek' => '*',
+        'month' => '*'
+    )
+);

db/upgrade.php

@@ -0,0 +1,606 @@
+<?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/>.
+
+/**
+ * Upgrade definitions for the hvp module.
+ *
+ * @package    mod_hvp
+ * @copyright  2016 Joubel AS <contact@joubel.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Adds data for tracking when content was created and last modified.
+ */
+function hvp_upgrade_2016011300() {
+    global $DB;
+    $dbman = $DB->get_manager();
+
+    $table = new xmldb_table('hvp');
+
+    // Define field timecreated to be added to hvp.
+    $timecreated = new xmldb_field('timecreated', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0', 'slug');
+
+    // Conditionally launch add field timecreated.
+    if (!$dbman->field_exists($table, $timecreated)) {
+        $dbman->add_field($table, $timecreated);
+    }
+
+    // Define field timemodified to be added to hvp.
+    $timemodified = new xmldb_field('timemodified', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0', 'timecreated');
+
+    // Conditionally launch add field timemodified.
+    if (!$dbman->field_exists($table, $timemodified)) {
+        $dbman->add_field($table, $timemodified);
+    }
+}
+
+/**
+ * Adds table for keeping track of, and cleaning up temporary files
+ */
+function hvp_upgrade_2016042500() {
+    global $DB;
+    $dbman = $DB->get_manager();
+
+    // Define table hvp_tmpfiles to be created.
+    $table = new xmldb_table('hvp_tmpfiles');
+
+    // Adding fields to table hvp_tmpfiles.
+    $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
+
+    // Adding keys to table hvp_tmpfiles.
+    $table->add_key('primary', XMLDB_KEY_PRIMARY, ['id']);
+
+    // Conditionally launch create table for hvp_tmpfiles.
+    if (!$dbman->table_exists($table)) {
+        $dbman->create_table($table);
+    }
+}
+
+/**
+ * Adds events table
+ */
+function hvp_upgrade_2016050600() {
+    global $DB;
+    $dbman = $DB->get_manager();
+
+    // Define table hvp_events to be created.
+    $table = new xmldb_table('hvp_events');
+
+    // Adding fields to table hvp_events.
+    $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
+    $table->add_field('user_id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
+    $table->add_field('created_at', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
+    $table->add_field('type', XMLDB_TYPE_CHAR, '63', null, XMLDB_NOTNULL, null, null);
+    $table->add_field('sub_type', XMLDB_TYPE_CHAR, '63', null, XMLDB_NOTNULL, null, null);
+    $table->add_field('content_id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
+    $table->add_field('content_title', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
+    $table->add_field('library_name', XMLDB_TYPE_CHAR, '127', null, XMLDB_NOTNULL, null, null);
+    $table->add_field('library_version', XMLDB_TYPE_CHAR, '31', null, XMLDB_NOTNULL, null, null);
+
+    // Adding keys to table hvp_events.
+    $table->add_key('primary', XMLDB_KEY_PRIMARY, ['id']);
+
+    // Conditionally launch create table for hvp_events.
+    if (!$dbman->table_exists($table)) {
+        $dbman->create_table($table);
+    }
+
+    // Define table hvp_counters to be created.
+    $table = new xmldb_table('hvp_counters');
+
+    // Adding fields to table hvp_counters.
+    $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
+    $table->add_field('type', XMLDB_TYPE_CHAR, '63', null, XMLDB_NOTNULL, null, null);
+    $table->add_field('library_name', XMLDB_TYPE_CHAR, '127', null, XMLDB_NOTNULL, null, null);
+    $table->add_field('library_version', XMLDB_TYPE_CHAR, '31', null, XMLDB_NOTNULL, null, null);
+    $table->add_field('num', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
+
+    // Adding keys to table hvp_counters.
+    $table->add_key('primary', XMLDB_KEY_PRIMARY, ['id']);
+
+    // Adding indexes to table hvp_counters.
+    $table->add_index('realkey', XMLDB_INDEX_NOTUNIQUE, [
+        'type',
+        'library_name',
+        'library_version',
+    ]);
+
+    // Conditionally launch create table for hvp_counters.
+    if (!$dbman->table_exists($table)) {
+        $dbman->create_table($table);
+    }
+}
+
+/**
+ * Adds intro and introformat to hvp table
+ */
+function hvp_upgrade_2016051000() {
+    global $DB;
+    $dbman = $DB->get_manager();
+
+    $table = new xmldb_table('hvp');
+
+    // Define field intro to be added to hvp.
+    $intro = new xmldb_field('intro', XMLDB_TYPE_TEXT, null, null, null, null, null, 'name');
+
+    // Add field intro if not defined already.
+    if (!$dbman->field_exists($table, $intro)) {
+        $dbman->add_field($table, $intro);
+    }
+
+    // Define field introformat to be added to hvp.
+    $introformat = new xmldb_field('introformat', XMLDB_TYPE_INTEGER, '4', null, XMLDB_NOTNULL, null, '0', 'intro');
+
+    // Add field introformat if not defined already.
+    if (!$dbman->field_exists($table, $introformat)) {
+        $dbman->add_field($table, $introformat);
+    }
+}
+
+/**
+ * Changes context of activity files to enable backup an restore.
+ */
+function hvp_upgrade_2016110100() {
+    global $DB;
+
+    // Change context of activity files from COURSE to MODULE.
+    $filearea  = 'content';
+    $component = 'mod_hvp';
+
+    // Find activity ID and correct context ID.
+    $hvpsresult = $DB->get_records_sql(
+        "SELECT f.id AS fileid, f.itemid, c.id, f.filepath, f.filename, f.pathnamehash
+                   FROM {files} f
+                   JOIN {course_modules} cm ON f.itemid = cm.instance
+                   JOIN {modules} md ON md.id = cm.module
+                   JOIN {context} c ON c.instanceid = cm.id
+                  WHERE md.name = 'hvp'
+                    AND f.filearea = 'content'
+                    AND c.contextlevel = " . CONTEXT_MODULE
+    );
+
+    foreach ($hvpsresult as $hvp) {
+        // Need to re-hash pathname after changing context.
+        $pathnamehash = file_storage::get_pathname_hash($hvp->id,
+            $component,
+            $filearea,
+            $hvp->itemid,
+            $hvp->filepath,
+            $hvp->filename
+        );
+
+        // Double check that hash doesn't exist (avoid duplicate entries).
+        if (!$DB->get_field_sql("SELECT contextid FROM {files} WHERE pathnamehash = '{$pathnamehash}'")) {
+            // Update context ID and pathname hash for files.
+            $DB->execute("
+                  UPDATE {files}
+                  SET contextid = {$hvp->id},
+                      pathnamehash = '{$pathnamehash}'
+                  WHERE pathnamehash = '{$hvp->pathnamehash}'"
+            );
+        }
+    }
+}
+
+/**
+ * Notifies about breaking changes to H5P content type styling
+ */
+function hvp_upgrade_2016122800() {
+    // @codingStandardsIgnoreLine
+    \mod_hvp\framework::messages('info', '<span style="font-weight: bold;">Upgrade your H5P content types!</span> Old content types will still work, but the authoring tool will look and feel much better if you <a href="https://h5p.org/update-all-content-types">upgrade the content types</a>.');
+    \mod_hvp\framework::printMessages('info', \mod_hvp\framework::messages('info'));
+}
+
+/**
+ * Adds content type cache to enable the content type hub
+ */
+function hvp_upgrade_2017040500() {
+    global $DB;
+    $dbman = $DB->get_manager();
+
+    // Add content type cache database.
+    $table = new xmldb_table('hvp_libraries_hub_cache');
+
+    // Adding fields to table hvp_libraries_hub_cache.
+    $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
+    $table->add_field('machine_name', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
+    $table->add_field('major_version', XMLDB_TYPE_INTEGER, '4', null, XMLDB_NOTNULL, null, null);
+    $table->add_field('minor_version', XMLDB_TYPE_INTEGER, '4', null, XMLDB_NOTNULL, null, null);
+    $table->add_field('patch_version', XMLDB_TYPE_INTEGER, '4', null, XMLDB_NOTNULL, null, null);
+    $table->add_field('h5p_major_version', XMLDB_TYPE_INTEGER, '4', null, null, null, null);
+    $table->add_field('h5p_minor_version', XMLDB_TYPE_INTEGER, '4', null, null, null, null);
+    $table->add_field('title', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
+    $table->add_field('summary', XMLDB_TYPE_TEXT, null, null, XMLDB_NOTNULL, null, null);
+    $table->add_field('description', XMLDB_TYPE_TEXT, null, null, XMLDB_NOTNULL, null, null);
+    $table->add_field('icon', XMLDB_TYPE_CHAR, '511', null, XMLDB_NOTNULL, null, null);
+    $table->add_field('created_at', XMLDB_TYPE_INTEGER, '11', null, XMLDB_NOTNULL, null, null);
+    $table->add_field('updated_at', XMLDB_TYPE_INTEGER, '11', null, XMLDB_NOTNULL, null, null);
+    $table->add_field('is_recommended', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
+    $table->add_field('popularity', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
+    $table->add_field('screenshots', XMLDB_TYPE_TEXT, null, null, null, null, null);
+    $table->add_field('license', XMLDB_TYPE_TEXT, null, null, null, null, null);
+    $table->add_field('example', XMLDB_TYPE_CHAR, '511', null, XMLDB_NOTNULL, null, null);
+    $table->add_field('tutorial', XMLDB_TYPE_CHAR, '511', null, null, null, null);
+    $table->add_field('keywords', XMLDB_TYPE_TEXT, null, null, null, null, null);
+    $table->add_field('categories', XMLDB_TYPE_TEXT, null, null, null, null, null);
+    $table->add_field('owner', XMLDB_TYPE_CHAR, '511', null, null, null, null);
+
+    // Adding keys to table hvp_libraries_hub_cache.
+    $table->add_key('primary', XMLDB_KEY_PRIMARY, ['id']);
+
+    // Conditionally create table for hvp_libraries_hub_cache.
+    if (!$dbman->table_exists($table)) {
+        $dbman->create_table($table);
+    }
+
+    // Update the content type cache.
+    $core = \mod_hvp\framework::instance();
+    $core->updateContentTypeCache();
+
+    // Print messages.
+    \mod_hvp\framework::printMessages('info', \mod_hvp\framework::messages('info'));
+    \mod_hvp\framework::printMessages('error', \mod_hvp\framework::messages('error'));
+
+    // Add has_icon to libraries folder.
+    $table = new xmldb_table('hvp_libraries');
+
+    // Define field has_icon to be added to hvp_libraries.
+    $hasicon = new xmldb_field('has_icon', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
+
+    // Add field has_icon if it does not exist.
+    if (!$dbman->field_exists($table, $hasicon)) {
+        $dbman->add_field($table, $hasicon);
+    }
+
+    // Display hub communication info.
+    if (!get_config('mod_hvp', 'external_communication')) {
+        // @codingStandardsIgnoreLine
+        \mod_hvp\framework::messages('info', 'H5P now fetches content types directly from the H5P Hub. In order to do this, the H5P plugin will communicate with H5P.org once per day to fetch information about new and updated content types. It will send in anonymous data to the hub about H5P usage. You may disable the data contribution and/or the H5P Hub in the H5P settings.');
+        \mod_hvp\framework::printMessages('info', \mod_hvp\framework::messages('info'));
+    }
+
+    // Enable hub and delete old communication variable.
+    set_config('hub_is_enabled', true, 'mod_hvp');
+    unset_config('hub_is_enabled', 'mod_hvp');
+}
+
+/**
+ * Adds xAPI results table to enable reporting
+ */
+function hvp_upgrade_2017050900() {
+    global $DB;
+    $dbman = $DB->get_manager();
+
+    // Add report rendering.
+    $table = new xmldb_table('hvp_xapi_results');
+
+    // Add fields.
+    $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
+    $table->add_field('content_id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
+    $table->add_field('user_id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
+    $table->add_field('parent_id', XMLDB_TYPE_INTEGER, '10', null, null, null, null);
+    $table->add_field('interaction_type', XMLDB_TYPE_CHAR, '127', null, XMLDB_NOTNULL, null, null);
+    $table->add_field('description', XMLDB_TYPE_TEXT, null, null, XMLDB_NOTNULL, null, null);
+    $table->add_field('correct_responses_pattern', XMLDB_TYPE_TEXT, null, null, XMLDB_NOTNULL, null, null);
+    $table->add_field('response', XMLDB_TYPE_TEXT, null, null, XMLDB_NOTNULL, null, null);
+    $table->add_field('additionals', XMLDB_TYPE_TEXT, null, null, XMLDB_NOTNULL, null, null);
+
+    // Add keys and index.
+    $table->add_key('primary', XMLDB_KEY_PRIMARY, ['id']);
+    $table->add_index('result', XMLDB_INDEX_UNIQUE, [
+        'id',
+        'content_id',
+        'user_id',
+    ]);
+
+    // Create table if it does not exist.
+    if (!$dbman->table_exists($table)) {
+        $dbman->create_table($table);
+    }
+}
+
+/**
+ * Adds raw score and max score to xapi results table
+ */
+function hvp_upgrade_2017060900() {
+    global $DB;
+    $dbman = $DB->get_manager();
+
+    // Add score to report rendering.
+    $table = new xmldb_table('hvp_xapi_results');
+
+    if ($dbman->table_exists($table)) {
+        // Raw score field.
+        $scorefield = new xmldb_field('raw_score', XMLDB_TYPE_INTEGER, '6');
+        if (!$dbman->field_exists($table, $scorefield)) {
+            $dbman->add_field($table, $scorefield);
+        }
+
+        // Max score field.
+        $maxscorefield = new xmldb_field('max_score', XMLDB_TYPE_INTEGER, '6');
+        if (!$dbman->field_exists($table, $maxscorefield)) {
+            $dbman->add_field($table, $maxscorefield);
+        }
+    }
+}
+
+function hvp_upgrade_2018090300() {
+    global $DB;
+    $dbman = $DB->get_manager();
+
+    $table = new xmldb_table('hvp');
+
+    // Remove old, unused metadata fields.
+    if ($dbman->field_exists($table, 'author')) {
+        $dbman->drop_field($table, new xmldb_field('author'));
+    }
+
+    if ($dbman->field_exists($table, 'license')) {
+        $dbman->drop_field($table, new xmldb_field('license'));
+    }
+
+    if ($dbman->field_exists($table, 'meta_keywords')) {
+        $dbman->drop_field($table, new xmldb_field('meta_keywords'));
+    }
+
+    if ($dbman->field_exists($table, 'meta_description')) {
+        $dbman->drop_field($table, new xmldb_field('meta_description'));
+    }
+
+    // Create new metadata fields.
+    if (!$dbman->field_exists($table, 'authors')) {
+        $dbman->add_field($table,
+            new xmldb_field('authors', XMLDB_TYPE_TEXT, null, null, null, null, null)
+        );
+    }
+
+    if (!$dbman->field_exists($table, 'source')) {
+        $dbman->add_field($table,
+            new xmldb_field('source', XMLDB_TYPE_CHAR, '255', null, null, null, null)
+        );
+    }
+
+    if (!$dbman->field_exists($table, 'year_from')) {
+        $dbman->add_field($table,
+            new xmldb_field('year_from', XMLDB_TYPE_INTEGER, '4', null, null, null, null)
+        );
+    }
+
+    if (!$dbman->field_exists($table, 'year_to')) {
+        $dbman->add_field($table,
+            new xmldb_field('year_to', XMLDB_TYPE_INTEGER, '4', null, null, null, null)
+        );
+    }
+
+    if (!$dbman->field_exists($table, 'license')) {
+        $dbman->add_field($table,
+            new xmldb_field('license', XMLDB_TYPE_CHAR, '63', null, null, null, null)
+        );
+    }
+
+    if (!$dbman->field_exists($table, 'license_version')) {
+        $dbman->add_field($table,
+            new xmldb_field('license_version', XMLDB_TYPE_CHAR, '15', null, null, null, null)
+        );
+    }
+
+    if (!$dbman->field_exists($table, 'changes')) {
+        $dbman->add_field($table,
+            new xmldb_field('changes', XMLDB_TYPE_TEXT, null, null, null, null, null)
+        );
+    }
+
+    if (!$dbman->field_exists($table, 'license_extras')) {
+        $dbman->add_field($table,
+            new xmldb_field('license_extras', XMLDB_TYPE_TEXT, null, null, null, null, null)
+        );
+    }
+
+    if (!$dbman->field_exists($table, 'author_comments')) {
+        $dbman->add_field($table,
+            new xmldb_field('author_comments', XMLDB_TYPE_TEXT, null, null, null, null, null)
+        );
+    }
+
+    // Add new libraries fields.
+    $table = new xmldb_table('hvp_libraries');
+    if (!$dbman->field_exists($table, 'add_to')) {
+        $dbman->add_field($table,
+            new xmldb_field('add_to', XMLDB_TYPE_TEXT, null, null, null, null, null)
+        );
+    }
+
+    if (!$dbman->field_exists($table, 'metadata_settings')) {
+        $dbman->add_field($table,
+            new xmldb_field('metadata_settings', XMLDB_TYPE_TEXT, null, null, null, null, null)
+        );
+    }
+}
+
+
+/**
+ * Adds authentication table
+ *
+ * @throws ddl_exception
+ */
+function hvp_upgrade_2019022600() {
+    global $DB;
+    $dbman = $DB->get_manager();
+
+    // Add auth table.
+    $table = new xmldb_table('hvp_auth');
+
+    // Add fields.
+    $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
+    $table->add_field('user_id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
+    $table->add_field('created_at', XMLDB_TYPE_INTEGER, '11', null, XMLDB_NOTNULL, null, null);
+    $table->add_field('secret', XMLDB_TYPE_CHAR, '64', null, XMLDB_NOTNULL, null, null);
+
+    // Add keys and index.
+    $table->add_key('primary', XMLDB_KEY_PRIMARY, ['id']);
+    $table->add_index('user_id', XMLDB_INDEX_UNIQUE, ['user_id']);
+
+    // Create table if it does not exist.
+    if (!$dbman->table_exists($table)) {
+        $dbman->create_table($table);
+    }
+}
+
+/**
+ * Add default language to content
+ *
+ * @throws ddl_exception
+ * @throws ddl_table_missing_exception
+ */
+function hvp_upgrade_2019030700() {
+    global $DB;
+    $dbman = $DB->get_manager();
+
+    $table = new xmldb_table('hvp');
+
+    if (!$dbman->field_exists($table, 'default_language')) {
+        $dbman->add_field($table,
+            new xmldb_field('default_language', XMLDB_TYPE_CHAR, '32', null, null, null, null)
+        );
+    }
+}
+
+function hvp_upgrade_2020080400() {
+    global $DB;
+    $dbman = $DB->get_manager();
+    // Define field completionscorerequired to be added to hvp.
+    $table = new xmldb_table('hvp');
+    // Conditionally launch add field completionscorerequired.
+    if (!$dbman->field_exists($table, 'completionpass')) {
+        $dbman->add_field(
+            $table,
+            new xmldb_field('completionpass', XMLDB_TYPE_INTEGER, '1', null, null, null, 0, 'timemodified')
+        );
+    }
+}
+
+function hvp_upgrade_2020080401() {
+    global $DB;
+    $dbman = $DB->get_manager();
+
+    // Changing nullability of field completionpass on table hvp to not null.
+    $table = new xmldb_table('hvp');
+    $field = new xmldb_field('completionpass', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '0', 'timemodified');
+
+    // Launch change of nullability for field completionpass.
+    $dbman->change_field_notnull($table, $field);
+}
+
+function hvp_upgrade_2020082800() {
+    global $DB;
+    $dbman = $DB->get_manager();
+
+    $table = new xmldb_table('hvp');
+
+    if (!$dbman->field_exists($table, 'a11y_title')) {
+        $dbman->add_field($table,
+            new xmldb_field('a11y_title', XMLDB_TYPE_CHAR, '255', null, null, null, null)
+        );
+    }
+}
+
+/**
+ * Drop old unused unique index, add nonunique index.
+ */
+function hvp_upgrade_2020091500() {
+    global $DB;
+    $dbman = $DB->get_manager();
+    $table = new xmldb_table('hvp_xapi_results');
+    $index = new xmldb_index('results', XMLDB_INDEX_NOTUNIQUE, ['content_id', 'user_id']);
+    if (!$dbman->index_exists($table, $index)) {
+        $dbman->add_index($table, $index);
+    }
+
+    $oldindex = new xmldb_index('result', XMLDB_INDEX_UNIQUE, ['id', 'content_id', 'user_id']);
+    $dbman->drop_index($table, $oldindex);
+}
+
+function hvp_upgrade_2020112600() {
+    global $DB;
+    $dbman = $DB->get_manager();
+
+    // Add Content Hub fields to main content table.
+    $table = new xmldb_table('hvp');
+    if (!$dbman->field_exists($table, 'shared')) {
+        $dbman->add_field($table, new xmldb_field('shared', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, 0, 'completionpass'));
+    }
+    if (!$dbman->field_exists($table, 'synced')) {
+        $dbman->add_field($table, new xmldb_field('synced', XMLDB_TYPE_INTEGER, '10', null, null, null, null, 'shared'));
+    }
+    if (!$dbman->field_exists($table, 'hub_id')) {
+        $dbman->add_field($table, new xmldb_field('hub_id', XMLDB_TYPE_INTEGER, '10', null, null, null, null, 'synced'));
+    }
+
+    // Create table for caching content hub metadata.
+    $table = new xmldb_table('hvp_content_hub_cache');
+    $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
+    $table->add_field('language', XMLDB_TYPE_CHAR, '31', null, XMLDB_NOTNULL, null, null);
+    $table->add_field('json', XMLDB_TYPE_TEXT, null, null, XMLDB_NOTNULL, null, null);
+    $table->add_field('last_checked', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
+
+    $table->add_key('primary', XMLDB_KEY_PRIMARY, ['id']);
+    $table->add_index('language', XMLDB_INDEX_UNIQUE, ['language']);
+
+    if (!$dbman->table_exists($table)) {
+        $dbman->create_table($table);
+    }
+}
+
+/**
+ * Hvp module upgrade function.
+ *
+ * @param string $oldversion The version we are upgrading from
+ *
+ * @return bool Success
+ */
+function xmldb_hvp_upgrade($oldversion) {
+    $upgrades = [
+        2016011300,
+        2016042500,
+        2016050600,
+        2016051000,
+        2016110100,
+        2016122800,
+        2017040500,
+        2017050900,
+        2017060900,
+        2018090300,
+        2019022600,
+        2019030700,
+        2020080400,
+        2020080401,
+        2020082800,
+        2020091500,
+        2020112600,
+    ];
+
+    foreach ($upgrades as $version) {
+        if ($oldversion < $version) {
+            call_user_func("hvp_upgrade_{$version}");
+            upgrade_mod_savepoint(true, $version, 'hvp');
+        }
+    }
+
+    return true;
+}

editor.js

@@ -0,0 +1,50 @@
+(function($) {
+
+  /**
+   * Get closest row of element
+   *
+   * @param {jQuery} $el
+   * @returns {jQuery}
+   */
+  function getRow($el) {
+    return $el.closest('.fitem');
+  }
+
+    /**
+     * Initializes editor
+     */
+  function init() {
+    var $editor = $('.h5p-editor');
+    var $fileField = $('input[name="h5pfile"]');
+
+    if (H5PIntegration.hubIsEnabled) {
+      // TODO: This can easily break in new themes. Improve robustness of this
+      // by not including h5paction in form, when it should not be used.
+      $('input[name="h5paction"]').parents('.fitem').last().hide();
+    }
+
+    const mformId = H5PIntegration.editor && H5PIntegration.editor.formId !== null
+      ? H5PIntegration.editor.formId
+      : 'mform1';
+
+    // Cancel validation and submission of form if clicking cancel button
+    const cancelSubmitCallback = function ($button) {
+      return $button.is('[name="cancel"]');
+    };
+
+    H5PEditor.init(
+      $('#' + mformId),
+      $('input[name="h5paction"]'),
+      getRow($fileField),
+      getRow($editor),
+      $editor,
+      $('input[name="h5plibrary"]'),
+      $('input[name="h5pparams"]'),
+      $('input[name="h5pmaxscore"]'),
+      $('input[name="name"]'),
+      cancelSubmitCallback
+    );
+  }
+
+  $(document).ready(init);
+})(H5P.jQuery);

editor/README.md

@@ -0,0 +1,10 @@
+H5P Editor PHP Library
+==========
+
+A general library that is supposed to be used in most PHP implementations of H5P.
+
+## License
+
+All code is licensed under MIT License
+
+Open Sans font is licensed under Apache license, Version 2.0

editor/ckeditor/README.md

@@ -0,0 +1,39 @@
+CKEditor 4
+==========
+
+Copyright (c) 2003-2021, CKSource - Frederico Knabben. All rights reserved.
+https://ckeditor.com - See LICENSE.md for license information.
+
+CKEditor 4 is a text editor to be used inside web pages. It's not a replacement
+for desktop text editors like Word or OpenOffice, but a component to be used as
+part of web applications and websites.
+
+## Documentation
+
+The full editor documentation is available online at the following address:
+https://ckeditor.com/docs/
+
+## Installation
+
+Installing CKEditor is an easy task. Just follow these simple steps:
+
+ 1. **Download** the latest version from the CKEditor website:
+    https://ckeditor.com. You should have already completed this step, but be
+    sure you have the very latest version.
+ 2. **Extract** (decompress) the downloaded file into the root of your website.
+
+**Note:** CKEditor is by default installed in the `ckeditor` folder. You can
+place the files in whichever you want though.
+
+## Checking Your Installation
+
+The editor comes with a few sample pages that can be used to verify that
+installation proceeded properly. Take a look at the `samples` directory.
+
+To test your installation, just call the following page at your website:
+
+	http://<your site>/<CKEditor installation path>/samples/index.html
+
+For example:
+
+	http://www.example.com/ckeditor/samples/index.html

editor/ckeditor/SECURITY.md

@@ -0,0 +1,10 @@
+# Reporting a security issues
+
+If you believe you have found a security issue in the CKEditor 4 software, please contact us immediately.
+
+When reporting a potential security problem, please bear this in mind:
+
+*   Make sure to provide as many details as possible about the vulnerability.
+*   Please do not disclose publicly any security issues until we fix them and publish security releases.
+
+Contact the security team at security@cksource.com. As soon as we receive the security report, we will work promptly to confirm the issue and then to provide a security fix.

editor/ckeditor/adapters/jquery.js

@@ -0,0 +1,10 @@
+/*
+ Copyright (c) 2003-2021, CKSource - Frederico Knabben. All rights reserved.
+ For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
+*/
+(function(a){if("undefined"==typeof a)throw Error("jQuery should be loaded before CKEditor jQuery adapter.");if("undefined"==typeof CKEDITOR)throw Error("CKEditor should be loaded before CKEditor jQuery adapter.");CKEDITOR.config.jqueryOverrideVal="undefined"==typeof CKEDITOR.config.jqueryOverrideVal?!0:CKEDITOR.config.jqueryOverrideVal;a.extend(a.fn,{ckeditorGet:function(){var a=this.eq(0).data("ckeditorInstance");if(!a)throw"CKEditor is not initialized yet, use ckeditor() with a callback.";return a},
+ckeditor:function(g,e){if(!CKEDITOR.env.isCompatible)throw Error("The environment is incompatible.");if(!a.isFunction(g)){var m=e;e=g;g=m}var k=[];e=e||{};this.each(function(){var b=a(this),c=b.data("ckeditorInstance"),f=b.data("_ckeditorInstanceLock"),h=this,l=new a.Deferred;k.push(l.promise());if(c&&!f)g&&g.apply(c,[this]),l.resolve();else if(f)c.once("instanceReady",function(){setTimeout(function d(){c.element?(c.element.$==h&&g&&g.apply(c,[h]),l.resolve()):setTimeout(d,100)},0)},null,null,9999);
+else{if(e.autoUpdateElement||"undefined"==typeof e.autoUpdateElement&&CKEDITOR.config.autoUpdateElement)e.autoUpdateElementJquery=!0;e.autoUpdateElement=!1;b.data("_ckeditorInstanceLock",!0);c=a(this).is("textarea")?CKEDITOR.replace(h,e):CKEDITOR.inline(h,e);b.data("ckeditorInstance",c);c.on("instanceReady",function(e){var d=e.editor;setTimeout(function n(){if(d.element){e.removeListener();d.on("dataReady",function(){b.trigger("dataReady.ckeditor",[d])});d.on("setData",function(a){b.trigger("setData.ckeditor",
+[d,a.data])});d.on("getData",function(a){b.trigger("getData.ckeditor",[d,a.data])},999);d.on("destroy",function(){b.trigger("destroy.ckeditor",[d])});d.on("save",function(){a(h.form).submit();return!1},null,null,20);if(d.config.autoUpdateElementJquery&&b.is("textarea")&&a(h.form).length){var c=function(){b.ckeditor(function(){d.updateElement()})};a(h.form).submit(c);a(h.form).bind("form-pre-serialize",c);b.bind("destroy.ckeditor",function(){a(h.form).unbind("submit",c);a(h.form).unbind("form-pre-serialize",
+c)})}d.on("destroy",function(){b.removeData("ckeditorInstance")});b.removeData("_ckeditorInstanceLock");b.trigger("instanceReady.ckeditor",[d]);g&&g.apply(d,[h]);l.resolve()}else setTimeout(n,100)},0)},null,null,9999)}});var f=new a.Deferred;this.promise=f.promise();a.when.apply(this,k).then(function(){f.resolve()});this.editor=this.eq(0).data("ckeditorInstance");return this}});CKEDITOR.config.jqueryOverrideVal&&(a.fn.val=CKEDITOR.tools.override(a.fn.val,function(g){return function(e){if(arguments.length){var m=
+this,k=[],f=this.each(function(){var b=a(this),c=b.data("ckeditorInstance");if(b.is("textarea")&&c){var f=new a.Deferred;c.setData(e,function(){f.resolve()});k.push(f.promise());return!0}return g.call(b,e)});if(k.length){var b=new a.Deferred;a.when.apply(this,k).done(function(){b.resolveWith(m)});return b.promise()}return f}var f=a(this).eq(0),c=f.data("ckeditorInstance");return f.is("textarea")&&c?c.getData():g.call(f)}}))})(window.jQuery);

editor/ckeditor/bender-runner.config.json

@@ -0,0 +1,16 @@
+{
+  "bender": {
+    "port": 9001
+  },
+  "server": {
+    "port": 9002
+  },
+  "paths": {
+    "ckeditor4": "../ckeditor4/",
+    "runner": "./src/runner.html"
+  },
+  "browsers": {
+    "linux": [ "chrome", "firefox" ],
+    "macos": [ "safari" ]
+  }
+}

editor/ckeditor/build-config.js

@@ -0,0 +1,165 @@
+/**
+ * @license Copyright (c) 2003-2022, CKSource - Frederico Knabben. All rights reserved.
+ * For licensing, see LICENSE.md or https://ckeditor.com/license
+ */
+
+/**
+ * This file was added automatically by CKEditor builder.
+ * You may re-use it at any time to build CKEditor again.
+ *
+ * If you would like to build CKEditor online again
+ * (for example to upgrade), visit one the following links:
+ *
+ * (1) https://ckeditor.com/cke4/builder
+ *     Visit online builder to build CKEditor from scratch.
+ *
+ * (2) https://ckeditor.com/cke4/builder/84b6fa3dae0d9f3cb193260b476e8486
+ *     Visit online builder to build CKEditor, starting with the same setup as before.
+ *
+ * (3) https://ckeditor.com/cke4/builder/download/84b6fa3dae0d9f3cb193260b476e8486
+ *     Straight download link to the latest version of CKEditor (Optimized) with the same setup as before.
+ *
+ * NOTE:
+ *    This file is not used by CKEditor, you may remove it.
+ *    Changing this file will not change your CKEditor configuration.
+ */
+
+var CKBUILDER_CONFIG = {
+	skin: 'bootstrapck',
+	preset: 'basic',
+	ignore: [
+		'.DS_Store',
+		'.bender',
+		'.editorconfig',
+		'.gitattributes',
+		'.gitignore',
+		'.idea',
+		'.jscsrc',
+		'.jshintignore',
+		'.jshintrc',
+		'.mailmap',
+		'.npm',
+		'.nvmrc',
+		'.travis.yml',
+		'bender-err.log',
+		'bender-out.log',
+		'bender.ci.js',
+		'bender.js',
+		'dev',
+		'gruntfile.js',
+		'less',
+		'node_modules',
+		'package-lock.json',
+		'package.json',
+		'tests'
+	],
+	plugins : {
+		'a11yhelp' : 1,
+		'autogrow' : 1,
+		'basicstyles' : 1,
+		'bidi' : 1,
+		'clipboard' : 1,
+		'codeTag' : 1,
+		'codesnippet' : 1,
+		'colorbutton' : 1,
+		'colordialog' : 1,
+		'elementspath' : 1,
+		'enterkey' : 1,
+		'entities' : 1,
+		'floatingspace' : 1,
+		'font' : 1,
+		'format' : 1,
+		'horizontalrule' : 1,
+		'htmlwriter' : 1,
+		'indentlist' : 1,
+		'justify' : 1,
+		'lineheight' : 1,
+		'link' : 1,
+		'list' : 1,
+		'magicline' : 1,
+		'maximize' : 1,
+		'menubutton' : 1,
+		'pastefromword' : 1,
+		'pastetext' : 1,
+		'removeformat' : 1,
+		'resize' : 1,
+		'specialchar' : 1,
+		'stylescombo' : 1,
+		'tabletools' : 1,
+		'toolbar' : 1,
+		'undo' : 1,
+		'wysiwygarea' : 1
+	},
+	languages : {
+		'af' : 1,
+		'ar' : 1,
+		'az' : 1,
+		'bg' : 1,
+		'bn' : 1,
+		'bs' : 1,
+		'ca' : 1,
+		'cs' : 1,
+		'cy' : 1,
+		'da' : 1,
+		'de' : 1,
+		'de-ch' : 1,
+		'el' : 1,
+		'en' : 1,
+		'en-au' : 1,
+		'en-ca' : 1,
+		'en-gb' : 1,
+		'eo' : 1,
+		'es' : 1,
+		'es-mx' : 1,
+		'et' : 1,
+		'eu' : 1,
+		'fa' : 1,
+		'fi' : 1,
+		'fo' : 1,
+		'fr' : 1,
+		'fr-ca' : 1,
+		'gl' : 1,
+		'gu' : 1,
+		'he' : 1,
+		'hi' : 1,
+		'hr' : 1,
+		'hu' : 1,
+		'id' : 1,
+		'is' : 1,
+		'it' : 1,
+		'ja' : 1,
+		'ka' : 1,
+		'km' : 1,
+		'ko' : 1,
+		'ku' : 1,
+		'lt' : 1,
+		'lv' : 1,
+		'mk' : 1,
+		'mn' : 1,
+		'ms' : 1,
+		'nb' : 1,
+		'nl' : 1,
+		'no' : 1,
+		'oc' : 1,
+		'pl' : 1,
+		'pt' : 1,
+		'pt-br' : 1,
+		'ro' : 1,
+		'ru' : 1,
+		'si' : 1,
+		'sk' : 1,
+		'sl' : 1,
+		'sq' : 1,
+		'sr' : 1,
+		'sr-latn' : 1,
+		'sv' : 1,
+		'th' : 1,
+		'tr' : 1,
+		'tt' : 1,
+		'ug' : 1,
+		'uk' : 1,
+		'vi' : 1,
+		'zh' : 1,
+		'zh-cn' : 1
+	}
+};

editor/ckeditor/config.js

@@ -0,0 +1,44 @@
+/**
+ * @license Copyright (c) 2003-2021, CKSource - Frederico Knabben. All rights reserved.
+ * For licensing, see https://ckeditor.com/legal/ckeditor-oss-license
+ */
+
+CKEDITOR.editorConfig = function( config ) {
+	// Define changes to default configuration here.
+	// For complete reference see:
+	// https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_config.html
+
+	// The toolbar groups arrangement, optimized for a single toolbar row.
+	config.toolbarGroups = [
+		{ name: 'document',	   groups: [ 'mode', 'document', 'doctools' ] },
+		{ name: 'clipboard',   groups: [ 'clipboard', 'undo' ] },
+		{ name: 'editing',     groups: [ 'find', 'selection', 'spellchecker' ] },
+		{ name: 'forms' },
+		{ name: 'basicstyles', groups: [ 'basicstyles', 'cleanup' ] },
+		{ name: 'paragraph',   groups: [ 'list', 'indent', 'blocks', 'align', 'bidi' ] },
+		{ name: 'links' },
+		{ name: 'insert' },
+		{ name: 'styles' },
+		{ name: 'colors' },
+		{ name: 'tools' },
+		{ name: 'others' },
+		{ name: 'about' }
+	];
+
+	// The default plugins included in the basic setup define some buttons that
+	// are not needed in a basic editor. They are removed here.
+	//	config.removeButtons = 'Cut,Copy,Paste,Undo,Redo,Anchor,Underline,Strike,Subscript,Superscript';
+
+	// Dialog windows are also simplified.
+	config.removeDialogTabs = 'image:advanced;link:advanced';
+
+	// Se the most common block elements.
+	config.format_tags = 'p;h1;h2;h3;pre';
+
+	config.autoGrow_minHeight = 80;
+	config.height = 80;
+	config.autoGrow_onStartup = true;
+	config.autoGrow_maxHeight = 500;
+	config.colorButton_enableMore = true;
+	config.plugins += ',removeRedundantNBSP,customCodeHighlighter';
+};

editor/ckeditor/contents.css

@@ -0,0 +1,208 @@
+/*
+Copyright (c) 2003-2021, CKSource - Frederico Knabben. All rights reserved.
+For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
+*/
+
+body
+{
+	/* Font */
+	/* Emoji fonts are added to visualise them nicely in Internet Explorer. */
+	font-family: sans-serif, Arial, Verdana, "Trebuchet MS", "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
+	font-size: 12px;
+
+	/* Text color */
+	color: #333;
+
+	/* Remove the background color to make it transparent. */
+	background-color: #fff;
+
+	margin: 20px;
+}
+
+.cke_editable
+{
+	font-size: 13px;
+	line-height: 1.6;
+
+	/* Fix for missing scrollbars with RTL texts. (#10488) */
+	word-wrap: break-word;
+}
+
+blockquote
+{
+	font-style: italic;
+	font-family: Georgia, Times, "Times New Roman", serif;
+	padding: 2px 0;
+	border-style: solid;
+	border-color: #ccc;
+	border-width: 0;
+}
+
+.cke_contents_ltr blockquote
+{
+	padding-left: 20px;
+	padding-right: 8px;
+	border-left-width: 5px;
+}
+
+.cke_contents_rtl blockquote
+{
+	padding-left: 8px;
+	padding-right: 20px;
+	border-right-width: 5px;
+}
+
+a
+{
+	color: #0782C1;
+}
+
+ol,ul,dl
+{
+	/* IE7: reset rtl list margin. (#7334) */
+	*margin-right: 0px;
+	/* Preserved spaces for list items with text direction different than the list. (#6249,#8049)*/
+	padding: 0 40px;
+}
+
+h1,h2,h3,h4,h5,h6
+{
+	font-weight: normal;
+	line-height: 1.2;
+}
+
+hr
+{
+	border: 0px;
+	border-top: 1px solid #ccc;
+}
+
+img.right
+{
+	border: 1px solid #ccc;
+	float: right;
+	margin-left: 15px;
+	padding: 5px;
+}
+
+img.left
+{
+	border: 1px solid #ccc;
+	float: left;
+	margin-right: 15px;
+	padding: 5px;
+}
+
+pre
+{
+	white-space: pre-wrap; /* CSS 2.1 */
+	word-wrap: break-word; /* IE7 */
+	-moz-tab-size: 4;
+	tab-size: 4;
+}
+
+.marker
+{
+	background-color: Yellow;
+}
+
+span[lang]
+{
+	font-style: italic;
+}
+
+figure
+{
+	text-align: center;
+	outline: solid 1px #ccc;
+	background: rgba(0,0,0,0.05);
+	padding: 10px;
+	margin: 10px 20px;
+	display: inline-block;
+}
+
+figure > figcaption
+{
+	text-align: center;
+	display: block; /* For IE8 */
+}
+
+a > img {
+	padding: 1px;
+	margin: 1px;
+	border: none;
+	outline: 1px solid #0782C1;
+}
+
+/* Widget Styles */
+.code-featured
+{
+	border: 5px solid red;
+}
+
+.math-featured
+{
+	padding: 20px;
+	box-shadow: 0 0 2px rgba(200, 0, 0, 1);
+	background-color: rgba(255, 0, 0, 0.05);
+	margin: 10px;
+}
+
+.image-clean
+{
+	border: 0;
+	background: none;
+	padding: 0;
+}
+
+.image-clean > figcaption
+{
+	font-size: .9em;
+	text-align: right;
+}
+
+.image-grayscale
+{
+	background-color: white;
+	color: #666;
+}
+
+.image-grayscale img, img.image-grayscale
+{
+	filter: grayscale(100%);
+}
+
+.embed-240p
+{
+	max-width: 426px;
+	max-height: 240px;
+	margin:0 auto;
+}
+
+.embed-360p
+{
+	max-width: 640px;
+	max-height: 360px;
+	margin:0 auto;
+}
+
+.embed-480p
+{
+	max-width: 854px;
+	max-height: 480px;
+	margin:0 auto;
+}
+
+.embed-720p
+{
+	max-width: 1280px;
+	max-height: 720px;
+	margin:0 auto;
+}
+
+.embed-1080p
+{
+	max-width: 1920px;
+	max-height: 1080px;
+	margin:0 auto;
+}