179 lines
4 KiB
PHP
179 lines
4 KiB
PHP
<?php
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/**
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* Holds the session object.
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* @package Sakura
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*/
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namespace Sakura;
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/**
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* Session object.
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* @package Sakura
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* @author Julian van de Groep <me@flash.moe>
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*/
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class Session
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{
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/**
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* Session storage id.
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* @var int
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*/
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public $id = 0;
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/**
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* User id.
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* @var int
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*/
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public $user = 0;
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/**
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* IP address this session was started from.
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* @var string
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*/
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public $ip = '';
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/**
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* Country this session was started from.
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* @var string
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*/
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public $country = '';
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/**
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* User agent this session was started from.
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* @var string
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*/
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public $agent = '';
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/**
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* Session secret key.
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* @var string
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*/
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public $key = '';
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/**
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* Timestamp from when this session was created.
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* @var int
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*/
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public $start = 0;
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/**
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* Timestamp on which this session will invalidate.
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* @var int
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*/
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public $expire = 0;
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/**
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* Constructor, $id can be a number or the secret key.
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* @param mixed $id
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*/
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public function __construct($id)
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{
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$data = DB::table('sessions');
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if (is_numeric($id)) {
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$data->where('session_id', $id);
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} else {
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$data->where('session_key', $id);
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}
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$data = $data->first();
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if ($data) {
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$this->id = intval($data->session_id);
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$this->user = intval($data->user_id);
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$this->ip = Net::ntop($data->user_ip);
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$this->country = $data->session_country;
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$this->agent = $data->user_agent;
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$this->key = $data->session_key;
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$this->start = intval($data->session_start);
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$this->expire = intval($data->session_expire);
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}
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}
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/**
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* Create a new session
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* @param int $user
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* @param string $ip
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* @param string $country
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* @param string $agent
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* @param int $length
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* @return Session
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*/
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public static function create(int $user, string $ip, string $country, string $agent = null, int $length = 604800)
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{
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$start = time();
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$key = bin2hex(random_bytes(64));
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$id = DB::table('sessions')
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->insertGetId([
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'user_id' => $user,
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'user_ip' => Net::pton($ip),
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'user_agent' => $agent,
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'session_key' => $key,
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'session_start' => $start,
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'session_expire' => $start + $length,
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'session_country' => $country,
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]);
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return new Session($id);
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}
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/**
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* Delete this session.
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*/
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public function delete(): void
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{
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DB::table('sessions')
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->where('session_id', $this->id)
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->delete();
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}
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/**
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* Validate the session.
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* @param int $user
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* @param string $ip
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* @return bool
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*/
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public function validate(int $user, string $ip = null): bool
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{
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// Get session from database
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$session = DB::table('sessions')
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->where([
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'session_key' => $this->key,
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'user_id' => $user,
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])
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->first();
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// Check if we actually got something in return
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if (!$session) {
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return false;
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}
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// Check if the session expired
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if ($session->session_expire < time()) {
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$this->delete();
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return false;
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}
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if ($ip !== null) {
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/* completely removed the code for ip checking because it only worked with IPv4
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good thing is i can probably do CIDR based checking */
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}
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DB::table('sessions')
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->where('session_id', $session->session_id)
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->update(['session_expire' => time() + 604800]);
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return true;
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}
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/**
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* Get the country.
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* @param bool $long
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* @return string
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*/
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public function country(bool $long = false): string
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{
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return $long ? get_country_name($this->country) : $this->country;
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}
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}
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