src/Model/Storage/SystemResource.php

   1 <?php
   2 /**
   3  * @file src/Model/Storage/SystemStorage.php
   4  * @brief Storage backend system
   5  */
   6
   7 namespace Friendica\Model\Storage;
   8
   9 use \BadMethodCallException;
  10
  11 /**
  12  * @brief System resource storage class
  13  *
  14  * This class is used to load system resources, like images.
  15  * Is not intended to be selectable by admins as default storage class.
  16  */
  17 class SystemResource implements IStorage
  18 {
  19         const NAME = 'SystemResource';
  20
  21         // Valid folders to look for resources
  22         const VALID_FOLDERS = ["images"];
  23
  24         /**
  25          * @inheritDoc
  26          */
  27         public function get(string $filename)
  28         {
  29                 $folder = dirname($filename);
  30                 if (!in_array($folder, self::VALID_FOLDERS)) {
  31                         return "";
  32                 }
  33                 if (!file_exists($filename)) {
  34                         return "";
  35                 }
  36                 return file_get_contents($filename);
  37         }
  38
  39         /**
  40          * @inheritDoc
  41          */
  42         public function put(string $data, string $filename = '')
  43         {
  44                 throw new BadMethodCallException();
  45         }
  46
  47         public function delete(string $filename)
  48         {
  49                 throw new BadMethodCallException();
  50         }
  51
  52         /**
  53          * @inheritDoc
  54          */
  55         public function getOptions()
  56         {
  57                 return [];
  58         }
  59
  60         /**
  61          * @inheritDoc
  62          */
  63         public function saveOptions(array $data)
  64         {
  65                 return [];
  66         }
  67
  68         /**
  69          * @inheritDoc
  70          */
  71         public function __toString()
  72         {
  73                 return self::NAME;
  74         }
  75
  76         /**
  77          * @inheritDoc
  78          */
  79         public static function getName()
  80         {
  81                 return self::NAME;
  82         }
  83 }