mirror of
https://github.com/alextselegidis/easyappointments.git
synced 2024-11-25 01:12:21 +03:00
85 lines
2.2 KiB
PHP
85 lines
2.2 KiB
PHP
<?php defined('BASEPATH') or exit('No direct script access allowed');
|
|
|
|
/* ----------------------------------------------------------------------------
|
|
* Easy!Appointments - Open Source Web Scheduler
|
|
*
|
|
* @package EasyAppointments
|
|
* @author A.Tselegidis <alextselegidis@gmail.com>
|
|
* @copyright Copyright (c) 2013 - 2020, Alex Tselegidis
|
|
* @license http://opensource.org/licenses/GPL-3.0 - GPLv3
|
|
* @link http://easyappointments.org
|
|
* @since v1.0.0
|
|
* ---------------------------------------------------------------------------- */
|
|
|
|
/**
|
|
* Get date in RFC3339
|
|
*
|
|
* For example used in XML/Atom
|
|
*
|
|
* @link http://stackoverflow.com/questions/5671433/php-time-to-google-calendar-dates-time-format
|
|
*
|
|
* @param integer $timestamp
|
|
*
|
|
* @return string date in RFC3339
|
|
*
|
|
* @author Boris Korobkov
|
|
*/
|
|
function date3339($timestamp = 0)
|
|
{
|
|
if ( ! $timestamp)
|
|
{
|
|
$timestamp = time();
|
|
}
|
|
$date = date('Y-m-d\TH:i:s', $timestamp);
|
|
|
|
$matches = [];
|
|
if (preg_match('/^([\-+])(\d{2})(\d{2})$/', date('O', $timestamp), $matches))
|
|
{
|
|
$date .= $matches[1] . $matches[2] . ':' . $matches[3];
|
|
}
|
|
else
|
|
{
|
|
$date .= 'Z';
|
|
}
|
|
return $date;
|
|
}
|
|
|
|
/**
|
|
* Generate a hash of password string.
|
|
*
|
|
* For user security, all system passwords are stored in hash string into the database. Use this method to produce the
|
|
* hashed password.
|
|
*
|
|
* @param string $salt Salt value for current user. This value is stored on the database and is used when generating
|
|
* the password hash.
|
|
* @param string $password Given string password.
|
|
*
|
|
* @return string Returns the hash string of the given password.
|
|
*/
|
|
function hash_password($salt, $password)
|
|
{
|
|
$half = (int)(strlen($salt) / 2);
|
|
$hash = hash('sha256', substr($salt, 0, $half) . $password . substr($salt, $half));
|
|
|
|
for ($i = 0; $i < 100000; $i++)
|
|
{
|
|
$hash = hash('sha256', $hash);
|
|
}
|
|
|
|
return $hash;
|
|
}
|
|
|
|
/**
|
|
* Generate a new password salt.
|
|
*
|
|
* This method will not check if the salt is unique in database. This must be done
|
|
* from the calling procedure.
|
|
*
|
|
* @return string Returns a salt string.
|
|
*/
|
|
function generate_salt()
|
|
{
|
|
$max_length = 100;
|
|
$salt = hash('sha256', (uniqid(rand(), TRUE)));
|
|
return substr($salt, 0, $max_length);
|
|
}
|