111 lines
2.2 KiB
PHP
111 lines
2.2 KiB
PHP
<?php
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/**
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* This file is part of the Tracy (https://tracy.nette.org)
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* Copyright (c) 2004 David Grudl (https://davidgrudl.com)
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*/
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declare(strict_types=1);
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namespace Tracy;
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class FileSession implements SessionStorage
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{
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private const FilePrefix = 'tracy-';
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private const CookieLifetime = 31557600;
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/** @var string */
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public $cookieName = 'tracy-session';
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/** @var float probability that the clean() routine is started */
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public $gcProbability = 0.001;
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/** @var string */
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private $dir;
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/** @var resource */
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private $file;
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/** @var array */
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private $data = [];
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public function __construct(string $dir)
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{
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$this->dir = $dir;
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}
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public function isAvailable(): bool
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{
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if (!$this->file) {
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$this->open();
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}
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return true;
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}
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private function open(): void
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{
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$id = $_COOKIE[$this->cookieName] ?? null;
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if (
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!is_string($id)
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|| !preg_match('#^\w{10}\z#i', $id)
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|| !($file = @fopen($path = $this->dir . '/' . self::FilePrefix . $id, 'r+')) // intentionally @
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) {
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$id = Helpers::createId();
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setcookie($this->cookieName, $id, time() + self::CookieLifetime, '/', '', false, true);
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$file = @fopen($path = $this->dir . '/' . self::FilePrefix . $id, 'c+'); // intentionally @
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if ($file === false) {
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throw new \RuntimeException("Unable to create file '$path'. " . error_get_last()['message']);
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}
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}
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if (!@flock($file, LOCK_EX)) { // intentionally @
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throw new \RuntimeException("Unable to acquire exclusive lock on '$path'. ", error_get_last()['message']);
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}
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$this->file = $file;
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$this->data = @unserialize(stream_get_contents($this->file)) ?: []; // @ - file may be empty
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if (mt_rand() / mt_getrandmax() < $this->gcProbability) {
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$this->clean();
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}
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}
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public function &getData(): array
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{
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return $this->data;
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}
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public function clean(): void
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{
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$old = strtotime('-1 week');
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foreach (glob($this->dir . '/' . self::FilePrefix . '*') as $file) {
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if (filemtime($file) < $old) {
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unlink($file);
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}
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}
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}
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public function __destruct()
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{
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if (!$this->file) {
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return;
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}
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ftruncate($this->file, 0);
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fseek($this->file, 0);
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fwrite($this->file, serialize($this->data));
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flock($this->file, LOCK_UN);
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fclose($this->file);
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$this->file = null;
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}
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}
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