Skip to content

Commit

Permalink
MDL-62257 mnetservice_enrol: Implement Privacy API
Browse files Browse the repository at this point in the history
  • Loading branch information
@cescobedo
cescobedo committed May 8, 2018
1 parent 8e5187c commit 7f0e4dc
Show file tree
Hide file tree
Showing 3 changed files with 415 additions and 0 deletions.
176 changes: 176 additions & 0 deletions mnet/service/enrol/classes/privacy/provider.php
View file
@@ -0,0 +1,176 @@
<?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 mnetservice_enrol.
*
* @package mnetservice_enrol
* @copyright 2018 Carlos Escobedo <carlos@moodle.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
namespace mnetservice_enrol\privacy;
defined('MOODLE_INTERNAL') || die();
use core_privacy\local\metadata\collection;
use core_privacy\local\request\approved_contextlist;
use core_privacy\local\request\context;
use core_privacy\local\request\contextlist;
use core_privacy\local\request\transform;
use core_privacy\local\request\writer;
/**
* Privacy Subsystem for mnetservice_enrol implementing metadata and plugin providers.
*
* @copyright 2018 Carlos Escobedo <carlos@moodle.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class provider implements
\core_privacy\local\metadata\provider,
\core_privacy\local\request\subsystem\provider {
/**
* Returns meta data about this system.
*
* @param collection $collection The initialised collection to add items to.
* @return collection A listing of user data stored through this system.
*/
public static function get_metadata(collection $collection) : collection {
$collection->add_database_table(
'mnetservice_enrol_enrolments',
[
'hostid' => 'privacy:metadata:mnetservice_enrol_enrolments:hostid',
'userid' => 'privacy:metadata:mnetservice_enrol_enrolments:userid',
'remotecourseid' => 'privacy:metadata:mnetservice_enrol_enrolments:remotecourseid',
'rolename' => 'privacy:metadata:mnetservice_enrol_enrolments:rolename',
'enroltime' => 'privacy:metadata:mnetservice_enrol_enrolments:enroltime',
'enroltype' => 'privacy:metadata:mnetservice_enrol_enrolments:enroltype'
],
'privacy:metadata:mnetservice_enrol_enrolments:tableexplanation'
);

return $collection;
}
/**
* Get the list of contexts that contain user information for the specified user.
*
* @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(int $userid) : contextlist {
$sql = "SELECT c.id
FROM {context} c
JOIN {mnetservice_enrol_enrolments} me
ON me.userid = c.instanceid
AND c.contextlevel = :contextlevel
WHERE me.userid = :userid";
$params = [
'contextlevel' => CONTEXT_USER,
'userid' => $userid
];
$contextlist = new contextlist();
$contextlist->add_from_sql($sql, $params);
return $contextlist;
}
/**
* Export all user data for the specified user, in the specified contexts.
*
* @param approved_contextlist $contextlist The approved contexts to export information for.
*/
public static function export_user_data(approved_contextlist $contextlist) {
global $DB;
if (empty($contextlist->count())) {
return;
}
$userid = $contextlist->get_user()->id;
$contextuser = \context_user::instance($userid);
list($insql, $inparams) = $DB->get_in_or_equal($contextlist->get_contextids(), SQL_PARAMS_NAMED);
$params = [
'userid' => $userid,
'contextlevel' => CONTEXT_USER
];
$params += $inparams;
$sql = "SELECT me.id,
me.rolename,
me.enroltime,
me.enroltype,
mh.name as hostname,
mc.fullname
FROM {mnetservice_enrol_enrolments} me
JOIN {context} ctx
ON ctx.instanceid = me.userid
AND ctx.contextlevel = :contextlevel
JOIN {mnet_host} mh
ON mh.id = me.hostid
JOIN {mnetservice_enrol_courses} mc
ON mc.remoteid = me.remotecourseid
WHERE me.userid = :userid
AND ctx.id {$insql}";
$mnetenrolments = $DB->get_records_sql($sql, $params);
foreach ($mnetenrolments as $mnetenrolment) {
// The core_enrol data export is organised in:
// {User Context}/User enrolments/data.json.
$data[] = (object) [
'host' => $mnetenrolment->hostname,
'remotecourseid' => $mnetenrolment->fullname,
'rolename' => $mnetenrolment->rolename,
'enroltime' => transform::datetime($mnetenrolment->enroltime),
'enroltype' => $mnetenrolment->enroltype
];
}
writer::with_context($contextuser)->export_data(
[get_string('privacy:metadata:mnetservice_enrol_enrolments', 'mnetservice_enrol')],
(object)$data
);
}
/**
* 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 $context) {
if (empty($context)) {
return;
}
// Sanity check that context is at the User context level.
if ($context->contextlevel == CONTEXT_USER) {
static::delete_user_data($context->instanceid);
}
}
/**
* 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 $contextlist) {
if (empty($contextlist->count())) {
return;
}
$user = $contextlist->get_user();
foreach ($contextlist->get_contexts() as $context) {
// Verify the context is a user context and that the instanceid matches the userid of the contextlist.
if ($context->contextlevel == CONTEXT_USER && $context->instanceid == $user->id) {
// Get the data and write it.
static::delete_user_data($user->id);
}
}
}
/**
* This does the deletion of user data for the auth_oauth2.
*
* @param int $userid The user ID
*/
protected static function delete_user_data(int $userid) {
global $DB;
// Because we only use user contexts the instance ID is the user ID.
$DB->delete_records('mnetservice_enrol_enrolments', ['userid' => $userid]);
}
}
8 changes: 8 additions & 0 deletions mnet/service/enrol/lang/en/mnetservice_enrol.php
View file
Expand Up @@ -37,3 +37,11 @@
$string['otherenrolledusers'] = 'Other enrolled users';
$string['pluginname'] = 'Remote enrolment service';
$string['refetch'] = 'Re-fetch up to date state from remote hosts';
$string['privacy:metadata:mnetservice_enrol_enrolments'] = 'Remote enrolment service';
$string['privacy:metadata:mnetservice_enrol_enrolments:enroltime'] = 'The date/time of when the enrolment was modified.';
$string['privacy:metadata:mnetservice_enrol_enrolments:enroltype'] = 'The name of the enrol plugin at the remote server that was used to enrol our student into their course.';
$string['privacy:metadata:mnetservice_enrol_enrolments:hostid'] = 'The Id of the remote MNet host.';
$string['privacy:metadata:mnetservice_enrol_enrolments:remotecourseid'] = 'ID of the course at the remote server.';
$string['privacy:metadata:mnetservice_enrol_enrolments:rolename'] = 'The name of the role at the remote server.';
$string['privacy:metadata:mnetservice_enrol_enrolments:tableexplanation'] = 'This table stores the information about enrolments of our local users in courses on remote hosts.';
$string['privacy:metadata:mnetservice_enrol_enrolments:userid'] = 'The Id of our local user on this server.';

0 comments on commit 7f0e4dc

Please sign in to comment.