vendor/zendframework/zend-diactoros/src/Request.php

   1 <?php
   2 /**
   3  * @see       https://github.com/zendframework/zend-diactoros for the canonical source repository
   4  * @copyright Copyright (c) 2015-2017 Zend Technologies USA Inc. (http://www.zend.com)
   5  * @license   https://github.com/zendframework/zend-diactoros/blob/master/LICENSE.md New BSD License
   6  */
   7
   8 namespace Zend\Diactoros;
   9
  10 use Psr\Http\Message\RequestInterface;
  11 use Psr\Http\Message\StreamInterface;
  12 use Psr\Http\Message\UriInterface;
  13
  14 /**
  15  * HTTP Request encapsulation
  16  *
  17  * Requests are considered immutable; all methods that might change state are
  18  * implemented such that they retain the internal state of the current
  19  * message and return a new instance that contains the changed state.
  20  */
  21 class Request implements RequestInterface
  22 {
  23     use RequestTrait;
  24
  25     /**
  26      * @param null|string|UriInterface $uri URI for the request, if any.
  27      * @param null|string $method HTTP method for the request, if any.
  28      * @param string|resource|StreamInterface $body Message body, if any.
  29      * @param array $headers Headers for the message, if any.
  30      * @throws \InvalidArgumentException for any invalid value.
  31      */
  32     public function __construct($uri = null, $method = null, $body = 'php://temp', array $headers = [])
  33     {
  34         $this->initialize($uri, $method, $body, $headers);
  35     }
  36
  37     /**
  38      * {@inheritdoc}
  39      */
  40     public function getHeaders()
  41     {
  42         $headers = $this->headers;
  43         if (! $this->hasHeader('host')
  44             && $this->uri->getHost()
  45         ) {
  46             $headers['Host'] = [$this->getHostFromUri()];
  47         }
  48
  49         return $headers;
  50     }
  51
  52     /**
  53      * {@inheritdoc}
  54      */
  55     public function getHeader($header)
  56     {
  57         if (! $this->hasHeader($header)) {
  58             if (strtolower($header) === 'host'
  59                 && $this->uri->getHost()
  60             ) {
  61                 return [$this->getHostFromUri()];
  62             }
  63
  64             return [];
  65         }
  66
  67         $header = $this->headerNames[strtolower($header)];
  68
  69         return $this->headers[$header];
  70     }
  71 }