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https://github.com/the-djmaze/snappymail.git
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114 lines
2.5 KiB
PHP
114 lines
2.5 KiB
PHP
<?php
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/*
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* This file is part of MailSo.
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*
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* (c) 2014 Usenko Timur
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace MailSo\Cache\Drivers;
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/**
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* @category MailSo
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* @package Cache
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* @subpackage Drivers
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*/
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class File implements \MailSo\Cache\DriverInterface
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{
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/**
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* @var string
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*/
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private $sCacheFolder;
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/**
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* @var string
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*/
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private $sKeyPrefix;
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private function __construct(string $sCacheFolder, string $sKeyPrefix = '')
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{
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$this->sCacheFolder = $sCacheFolder;
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$this->sCacheFolder = rtrim(trim($this->sCacheFolder), '\\/').'/';
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$this->sKeyPrefix = $sKeyPrefix;
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if (!empty($this->sKeyPrefix))
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{
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$this->sKeyPrefix = \str_pad(\preg_replace('/[^a-zA-Z0-9_]/', '_',
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rtrim(trim($this->sKeyPrefix), '\\/')), 5, '_');
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$this->sKeyPrefix = '__/'.
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\substr($this->sKeyPrefix, 0, 2).'/'.\substr($this->sKeyPrefix, 2, 2).'/'.
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$this->sKeyPrefix.'/';
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}
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}
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public static function NewInstance(string $sCacheFolder, string $sKeyPrefix = '') : self
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{
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return new self($sCacheFolder, $sKeyPrefix);
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}
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public function Set(string $sKey, string $sValue) : bool
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{
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$sPath = $this->generateCachedFileName($sKey, true);
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return '' === $sPath ? false : false !== \file_put_contents($sPath, $sValue);
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}
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public function Get(string $sKey) : string
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{
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$sValue = '';
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$sPath = $this->generateCachedFileName($sKey);
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if ('' !== $sPath && \file_exists($sPath))
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{
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$sValue = \file_get_contents($sPath);
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}
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return \is_string($sValue) ? $sValue : '';
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}
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public function Delete(string $sKey) : void
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{
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$sPath = $this->generateCachedFileName($sKey);
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if ('' !== $sPath && \file_exists($sPath))
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{
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\unlink($sPath);
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}
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}
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public function GC(int $iTimeToClearInHours = 24) : bool
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{
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if (0 < $iTimeToClearInHours)
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{
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\MailSo\Base\Utils::RecTimeDirRemove($this->sCacheFolder, 60 * 60 * $iTimeToClearInHours, \time());
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return true;
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}
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return false;
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}
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private function generateCachedFileName(string $sKey, bool $bMkDir = false) : string
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{
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$sFilePath = '';
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if (3 < \strlen($sKey))
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{
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$sKeyPath = \sha1($sKey);
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$sKeyPath = \substr($sKeyPath, 0, 2).'/'.\substr($sKeyPath, 2, 2).'/'.$sKeyPath;
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$sFilePath = $this->sCacheFolder.$this->sKeyPrefix.$sKeyPath;
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if ($bMkDir && !\is_dir(\dirname($sFilePath)))
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{
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if (!@\mkdir(\dirname($sFilePath), 0755, true))
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{
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if (!@\mkdir(\dirname($sFilePath), 0755, true))
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{
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$sFilePath = '';
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}
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}
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}
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}
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return $sFilePath;
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}
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}
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