112 lines
		
	
	
		
			2.8 KiB
		
	
	
	
		
			PHP
		
	
	
			
		
		
	
	
			112 lines
		
	
	
		
			2.8 KiB
		
	
	
	
		
			PHP
		
	
	
<?php
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/*
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 *
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 * This software consists of voluntary contributions made by many individuals
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 * and is licensed under the MIT license. For more information, see
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 * <http://www.doctrine-project.org>.
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 */
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namespace Doctrine\Common\Cache;
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/**
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 * Filesystem cache driver.
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 *
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 * @since  2.3
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 * @author Fabio B. Silva <fabio.bat.silva@gmail.com>
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 */
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class FilesystemCache extends FileCache
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{
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    const EXTENSION = '.doctrinecache.data';
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    /**
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     * {@inheritdoc}
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     */
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    public function __construct($directory, $extension = self::EXTENSION, $umask = 0002)
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    {
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        parent::__construct($directory, $extension, $umask);
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    }
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    /**
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     * {@inheritdoc}
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     */
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    protected function doFetch($id)
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    {
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        $data     = '';
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        $lifetime = -1;
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        $filename = $this->getFilename($id);
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        if ( ! is_file($filename)) {
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            return false;
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        }
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        $resource = fopen($filename, "r");
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        if (false !== ($line = fgets($resource))) {
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            $lifetime = (int) $line;
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        }
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        if ($lifetime !== 0 && $lifetime < time()) {
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            fclose($resource);
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            return false;
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        }
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        while (false !== ($line = fgets($resource))) {
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            $data .= $line;
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        }
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        fclose($resource);
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        return unserialize($data);
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    }
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    /**
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     * {@inheritdoc}
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     */
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    protected function doContains($id)
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    {
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        $lifetime = -1;
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        $filename = $this->getFilename($id);
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        if ( ! is_file($filename)) {
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            return false;
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        }
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        $resource = fopen($filename, "r");
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        if (false !== ($line = fgets($resource))) {
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            $lifetime = (int) $line;
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        }
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        fclose($resource);
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        return $lifetime === 0 || $lifetime > time();
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    }
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    /**
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     * {@inheritdoc}
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     */
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    protected function doSave($id, $data, $lifeTime = 0)
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    {
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        if ($lifeTime > 0) {
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            $lifeTime = time() + $lifeTime;
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        }
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        $data      = serialize($data);
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        $filename  = $this->getFilename($id);
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        return $this->writeFile($filename, $lifeTime . PHP_EOL . $data);
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    }
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}
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