Your IP : 192.168.165.1
<?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/>.
/**
* @package moodlecore
* @subpackage backup-helper
* @copyright 2010 onwards Eloy Lafuente (stronk7) {@link http://stronk7.com}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
/**
* Helper class for anonymization of data
*
* This functions includes a collection of methods that are invoked
* from the backup process when anonymization services have been
* requested.
*
* The name of each method must be "process_parentname_name", as defined
* byt the @anonymizer_final_element final element class, where
* parentname is the name ob the parent tag and name the name of the tag
* contents to be anonymized (i.e. process_user_username) with one param
* being the value to anonymize.
*
* Note: current implementation of anonymization is pretty simple, just some
* sequential values are used. If we want more elaborated generation, it
* can be replaced later (using generators or wathever). Don't forget we must
* ensure some fields (username, idnumber, email) are unique always.
*
* TODO: Improve to use more advanced anonymization
*
* TODO: Finish phpdocs
*/
class backup_anonymizer_helper {
/**
* Determine if the given user is an 'anonymous' user, based on their username, firstname, lastname
* and email address.
* @param stdClass $user the user record to test
* @return bool true if this is an 'anonymous' user
*/
public static function is_anonymous_user($user) {
if (preg_match('/^anon\d*$/', $user->username)) {
$match = preg_match('/^anonfirstname\d*$/', $user->firstname);
$match = $match && preg_match('/^anonlastname\d*$/', $user->lastname);
// Check .com for backwards compatibility.
$emailmatch = preg_match('/^anon\d*@doesntexist\.com$/', $user->email) ||
preg_match('/^anon\d*@doesntexist\.invalid$/', $user->email);
if ($match && $emailmatch) {
return true;
}
}
return false;
}
public static function process_user_auth($value) {
return 'manual'; // Set them to manual always
}
public static function process_user_username($value) {
static $counter = 0;
$counter++;
return 'anon' . $counter; // Just a counter
}
public static function process_user_idnumber($value) {
return ''; // Just blank it
}
public static function process_user_firstname($value) {
static $counter = 0;
$counter++;
return 'anonfirstname' . $counter; // Just a counter
}
public static function process_user_lastname($value) {
static $counter = 0;
$counter++;
return 'anonlastname' . $counter; // Just a counter
}
public static function process_user_email($value) {
static $counter = 0;
$counter++;
return 'anon' . $counter . '@doesntexist.invalid'; // Just a counter.
}
public static function process_user_icq($value) {
return ''; // Clean icq
}
public static function process_user_skype($value) {
return ''; // Clean skype
}
public static function process_user_yahoo($value) {
return ''; // Clean yahoo
}
public static function process_user_aim($value) {
return ''; // Clean aim
}
public static function process_user_msn($value) {
return ''; // Clean msn
}
public static function process_user_phone1($value) {
return ''; // Clean phone1
}
public static function process_user_phone2($value) {
return ''; // Clean phone2
}
public static function process_user_institution($value) {
return ''; // Clean institution
}
public static function process_user_department($value) {
return ''; // Clean department
}
public static function process_user_address($value) {
return ''; // Clean address
}
public static function process_user_city($value) {
return 'Perth'; // Set city
}
public static function process_user_country($value) {
return 'AU'; // Set country
}
public static function process_user_lastip($value) {
return '127.0.0.1'; // Set lastip to localhost
}
public static function process_user_picture($value) {
return 0; // No picture
}
public static function process_user_url($value) {
return ''; // No url
}
public static function process_user_description($value) {
return ''; // No user description
}
public static function process_user_descriptionformat($value) {
return 0; // Format moodle
}
public static function process_user_imagealt($value) {
return ''; // No user imagealt
}
/**
* Anonymises user's phonetic name field
* @param string $value value of the user field
* @return string anonymised phonetic name
*/
public static function process_user_firstnamephonetic($value) {
static $counter = 0;
$counter++;
return 'anonfirstnamephonetic' . $counter; // Just a counter.
}
/**
* Anonymises user's phonetic last name field
* @param string $value value of the user field
* @return string anonymised last phonetic name
*/
public static function process_user_lastnamephonetic($value) {
static $counter = 0;
$counter++;
return 'anonlastnamephonetic' . $counter; // Just a counter.
}
/**
* Anonymises user's middle name field
* @param string $value value of the user field
* @return string anonymised middle name
*/
public static function process_user_middlename($value) {
static $counter = 0;
$counter++;
return 'anonmiddlename' . $counter; // Just a counter.
}
/**
* Anonymises user's alternate name field
* @param string $value value of the user field
* @return string anonymised alternate name
*/
public static function process_user_alternatename($value) {
static $counter = 0;
$counter++;
return 'anonalternatename' . $counter; // Just a counter.
}
}