Services/Http/HttpRequest.php

   1 <?php
   2
   3 namespace Services\Http;
   4
   5 use Services\Http\IHttpRequest;
   6 use Services\Http\Util;
   7
   8 class HttpRequest implements IHttpRequest
   9 {
  10     const METHOD_GET = 'GET';
  11     const METHOD_POST = 'POST';
  12     const METHOD_PUT = 'PUT';
  13     const METHOD_DELETE = 'DELETE';
  14     const METHOD_HEAD = 'HEAD';
  15
  16     protected $_method;
  17     protected $_cookies;
  18     protected $_formDataMediaTypes = array('application/x-www-form-urlencoded');
  19
  20     public function __construct()
  21     {
  22         $this->_method = $_SERVER['REQUEST_METHOD'];
  23
  24         if(isset($_SERVER['HTTP_COOKIE'])) {
  25             $this->_cookies = Util::parseCookieHeader($_SERVER['HTTP_COOKIE']);
  26         }
  27     }
  28
  29     public function getMethod()
  30     {
  31         return $this->_method;
  32     }
  33
  34     public function isGet()
  35     {
  36         return $this->_method == self::METHOD_GET;
  37     }
  38
  39     public function isPost()
  40     {
  41         return $this->_method == self::METHOD_POST;
  42     }
  43
  44     public function isPut()
  45     {
  46         return $this->_method == self::METHOD_PUT;
  47     }
  48
  49     public function isHead()
  50     {
  51         return $this->_method == self::METHOD_HEAD;
  52     }
  53
  54     public function isDelete()
  55     {
  56         return $this->_method == self::METHOD_DELETE;
  57     }
  58
  59     public function getContentType()
  60     {
  61         return isset($_SERVER['CONTENT_TYPE']) ? $_SERVER['CONTENT_TYPE'] : null;
  62     }
  63
  64     public function isFormData()
  65     {
  66         return in_array($this->getContentType(), $this->_formDataMediaTypes);
  67     }
  68
  69     public function get()
  70     {
  71         return !empty($_GET) ? $_GET : null;
  72     }
  73
  74     public function getGetElement($key)
  75     {
  76         return isset($_GET[$key]) ? $_GET[$key] : null;
  77     }
  78
  79     public function post()
  80     {
  81         return !empty($_POST) ? $_POST : null;
  82     }
  83
  84     public function getPostElement($key)
  85     {
  86         return isset($_POST[$key]) ? $_POST[$key] : null;
  87     }
  88
  89     public function put()
  90     {
  91         return $this->post();
  92     }
  93
  94     public function getPutElement($key)
  95     {
  96         return $this->getPostElement($key);
  97     }
  98
  99     public function delete()
 100     {
 101         return $this->post();
 102     }
 103
 104     public function getDeleteElement($key)
 105     {
 106         return $this->getPostElement($key);
 107     }
 108
 109     public function cookies()
 110     {
 111         return $this->_cookies;
 112     }
 113
 114     public function getCookie($key)
 115     {
 116         return isset($this->_cookies[$key]) ? $this->_cookies[$key] : null;
 117     }
 118
 119     public function getBody()
 120     {
 121         return @file_get_contents('php://input');
 122     }
 123     public function getHost()
 124     {
 125         if(isset($_SERVER['HTTP_HOST'])) {
 126             $parts = explode(':', $_SERVER['HTTP_HOST']);
 127             return $parts[0];
 128         }
 129
 130         return $_SERVER['SERVER_NAME'];
 131     }
 132
 133     public function getIp()
 134     {
 135         $keys = array('X_FORWARDED_FOR', 'HTTP_X_FORWARDED_FOR', 'CLIENT_IP', 'REMOTE_ADDR');
 136         foreach ($keys as $key) {
 137             if(isset($_SERVER[$key])) {
 138                 return $_SERVER[$key];
 139             }
 140         }
 141     }
 142
 143     public function getReferrer()
 144     {
 145         return $_SERVER['HTTP_REFERER'];
 146     }
 147
 148     // some people like to spell it referer due to RFC 1945
 149     public function getReferer()
 150     {
 151         return $this->getReferer();
 152     }
 153
 154     public function getUserAgent()
 155     {
 156         return $_SERVER['HTTP_USER_AGENT'];
 157     }
 158
 159     private function getPhysicalPath()
 160     {
 161         $scriptName = $_SERVER['SCRIPT_NAME']; // <-- "/foo/index.php"
 162         $requestUri = $_SERVER['REQUEST_URI']; // <-- "/foo/bar?test=abc" or "/foo/index.php/bar?test=abc"
 163
 164         // Physical path
 165         if (strpos($requestUri, $scriptName) !== false) {
 166             $physicalPath = $scriptName; // <-- Without rewriting
 167         } else {
 168             $physicalPath = str_replace('\\', '', dirname($scriptName)); // <-- With rewriting
 169         }
 170
 171         return $physicalPath;
 172     }
 173
 174     public function getPath()
 175     {
 176             $physicalPath = $this->getPhysicalPath();
 177             $requestUri = $_SERVER['REQUEST_URI']; // <-- "/foo/bar?test=abc" or "/foo/index.php/bar?test=abc"
 178             $queryString = isset($_SERVER['QUERY_STRING']) ? $_SERVER['QUERY_STRING'] : ''; // <-- "test=abc" or ""
 179
 180             // Virtual path
 181             $path = substr_replace($requestUri, '', 0, strlen($physicalPath)); // <-- Remove physical path
 182             $path = str_replace('?' . $queryString, '', $path); // <-- Remove query string
 183             $path = '/' . ltrim($path, '/'); // <-- Ensure leading slash
 184             $path = rtrim($path, '/'); // remove / from the end of string
 185
 186             return $path;
 187     }
 188 }