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Member "serendipity/bundled-libs/voku/simple-cache/src/voku/cache/AdapterFileSimple.php" (20 Nov 2022, 1803 Bytes) of package /linux/www/serendipity-2.4.0.zip:

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    1 <?php
    2 
    3 declare(strict_types=1);
    4 
    5 namespace voku\cache;
    6 
    7 /**
    8  * AdapterFileSimple: File-adapter (simple)
    9  */
   10 class AdapterFileSimple extends AdapterFileAbstract
   11 {
   12     const CACHE_FILE_PREFIX = '__simple_';
   13 
   14     /**
   15      * @return resource
   16      */
   17     protected function getContext()
   18     {
   19         static $CONTEXT_CACHE = null;
   20 
   21         if ($CONTEXT_CACHE === null) {
   22             $CONTEXT_CACHE = \stream_context_create(
   23                 [
   24                     'http' => [
   25                         'timeout' => 2,
   26                     ],
   27                 ]
   28             );
   29         }
   30 
   31         return $CONTEXT_CACHE;
   32     }
   33 
   34     /**
   35      * {@inheritdoc}
   36      */
   37     public function get(string $key)
   38     {
   39         $path = $this->getFileName($key);
   40 
   41         if (
   42             \file_exists($path) === false
   43             ||
   44             \filesize($path) === 0
   45         ) {
   46             return null;
   47         }
   48 
   49         // init
   50         $string = \file_get_contents(
   51             $path,
   52             false,
   53             $this->getContext()
   54         );
   55 
   56         if (!$string) {
   57             return null;
   58         }
   59 
   60         $data = $this->serializer->unserialize($string);
   61 
   62         if (!$data || !$this->validateDataFromCache($data)) {
   63             return null;
   64         }
   65 
   66         if ($this->ttlHasExpired($data['ttl']) === true) {
   67             $this->remove($key);
   68 
   69             return null;
   70         }
   71 
   72         return $data['value'];
   73     }
   74 
   75     /**
   76      * {@inheritdoc}
   77      */
   78     public function setExpired(string $key, $value, int $ttl = 0): bool
   79     {
   80         return $this->writeFile(
   81             $this->getFileName($key),
   82             $this->serializer->serialize(
   83                 [
   84                     'value' => $value,
   85                     'ttl'   => $ttl ? $ttl + \time() : 0,
   86                 ]
   87             )
   88         );
   89     }
   90 }