www.aleph1.co.uk Git - yaffs-website/blob - vendor/zendframework/zend-diactoros/src/PhpInputStream.php

   1 <?php
   2 /**
   3  * Zend Framework (http://framework.zend.com/)
   4  *
   5  * @see       http://github.com/zendframework/zend-diactoros for the canonical source repository
   6  * @copyright Copyright (c) 2015-2016 Zend Technologies USA Inc. (http://www.zend.com)
   7  * @license   https://github.com/zendframework/zend-diactoros/blob/master/LICENSE.md New BSD License
   8  */
   9
  10 namespace Zend\Diactoros;
  11
  12 /**
  13  * Caching version of php://input
  14  */
  15 class PhpInputStream extends Stream
  16 {
  17     /**
  18      * @var string
  19      */
  20     private $cache = '';
  21
  22     /**
  23      * @var bool
  24      */
  25     private $reachedEof = false;
  26
  27     /**
  28      * @param  string|resource $stream
  29      */
  30     public function __construct($stream = 'php://input')
  31     {
  32         parent::__construct($stream, 'r');
  33     }
  34
  35     /**
  36      * {@inheritdoc}
  37      */
  38     public function __toString()
  39     {
  40         if ($this->reachedEof) {
  41             return $this->cache;
  42         }
  43
  44         $this->getContents();
  45         return $this->cache;
  46     }
  47
  48     /**
  49      * {@inheritdoc}
  50      */
  51     public function isWritable()
  52     {
  53         return false;
  54     }
  55
  56     /**
  57      * {@inheritdoc}
  58      */
  59     public function read($length)
  60     {
  61         $content = parent::read($length);
  62         if ($content && ! $this->reachedEof) {
  63             $this->cache .= $content;
  64         }
  65
  66         if ($this->eof()) {
  67             $this->reachedEof = true;
  68         }
  69
  70         return $content;
  71     }
  72
  73     /**
  74      * {@inheritdoc}
  75      */
  76     public function getContents($maxLength = -1)
  77     {
  78         if ($this->reachedEof) {
  79             return $this->cache;
  80         }
  81
  82         $contents     = stream_get_contents($this->resource, $maxLength);
  83         $this->cache .= $contents;
  84
  85         if ($maxLength === -1 || $this->eof()) {
  86             $this->reachedEof = true;
  87         }
  88
  89         return $contents;
  90     }
  91 }