interface/modules/zend_modules/vendor/doctrine/cache/lib/Doctrine/Common/Cache/FilesystemCache.php

   1 <?php
   2 /*
   3  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   4  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   5  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   6  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   7  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   8  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   9  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  10  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  11  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  12  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  13  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  14  *
  15  * This software consists of voluntary contributions made by many individuals
  16  * and is licensed under the MIT license. For more information, see
  17  * <http://www.doctrine-project.org>.
  18  */
  19
  20 namespace Doctrine\Common\Cache;
  21
  22 /**
  23  * Filesystem cache driver.
  24  *
  25  * @since  2.3
  26  * @author Fabio B. Silva <fabio.bat.silva@gmail.com>
  27  */
  28 class FilesystemCache extends FileCache
  29 {
  30     const EXTENSION = '.doctrinecache.data';
  31
  32     /**
  33      * {@inheritdoc}
  34      */
  35     protected $extension = self::EXTENSION;
  36
  37     /**
  38      * {@inheritdoc}
  39      */
  40     protected function doFetch($id)
  41     {
  42         $data     = '';
  43         $lifetime = -1;
  44         $filename = $this->getFilename($id);
  45
  46         if ( ! is_file($filename)) {
  47             return false;
  48         }
  49
  50         $resource = fopen($filename, "r");
  51
  52         if (false !== ($line = fgets($resource))) {
  53             $lifetime = (integer) $line;
  54         }
  55
  56         if ($lifetime !== 0 && $lifetime < time()) {
  57             fclose($resource);
  58
  59             return false;
  60         }
  61
  62         while (false !== ($line = fgets($resource))) {
  63             $data .= $line;
  64         }
  65
  66         fclose($resource);
  67
  68         return unserialize($data);
  69     }
  70
  71     /**
  72      * {@inheritdoc}
  73      */
  74     protected function doContains($id)
  75     {
  76         $lifetime = -1;
  77         $filename = $this->getFilename($id);
  78
  79         if ( ! is_file($filename)) {
  80             return false;
  81         }
  82
  83         $resource = fopen($filename, "r");
  84
  85         if (false !== ($line = fgets($resource))) {
  86             $lifetime = (integer) $line;
  87         }
  88
  89         fclose($resource);
  90
  91         return $lifetime === 0 || $lifetime > time();
  92     }
  93
  94     /**
  95      * {@inheritdoc}
  96      */
  97     protected function doSave($id, $data, $lifeTime = 0)
  98     {
  99         if ($lifeTime > 0) {
 100             $lifeTime = time() + $lifeTime;
 101         }
 102
 103         $data       = serialize($data);
 104         $filename   = $this->getFilename($id);
 105         $filepath   = pathinfo($filename, PATHINFO_DIRNAME);
 106
 107         if ( ! is_dir($filepath)) {
 108             mkdir($filepath, 0777, true);
 109         }
 110
 111         return file_put_contents($filename, $lifeTime . PHP_EOL . $data) !== false;
 112     }
 113 }