rpicms

Environment.php (7333B)

---

 <?php
 /**
  * Slim - a micro PHP 5 framework
  *
  * @author      Josh Lockhart <info@slimframework.com>
  * @copyright   2011 Josh Lockhart
  * @link        http://www.slimframework.com
  * @license     http://www.slimframework.com/license
  * @version     2.4.2
  * @package     Slim
  *
  * MIT LICENSE
  *
  * Permission is hereby granted, free of charge, to any person obtaining
  * a copy of this software and associated documentation files (the
  * "Software"), to deal in the Software without restriction, including
  * without limitation the rights to use, copy, modify, merge, publish,
  * distribute, sublicense, and/or sell copies of the Software, and to
  * permit persons to whom the Software is furnished to do so, subject to
  * the following conditions:
  *
  * The above copyright notice and this permission notice shall be
  * included in all copies or substantial portions of the Software.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
 namespace Slim;
 
 /**
  * Environment
  *
  * This class creates and returns a key/value array of common
  * environment variables for the current HTTP request.
  *
  * This is a singleton class; derived environment variables will
  * be common across multiple Slim applications.
  *
  * This class matches the Rack (Ruby) specification as closely
  * as possible. More information available below.
  *
  * @package Slim
  * @author  Josh Lockhart
  * @since   1.6.0
  */
 class Environment implements \ArrayAccess, \IteratorAggregate
 {
     /**
      * @var array
      */
     protected $properties;
 
     /**
      * @var \Slim\Environment
      */
     protected static $environment;
 
     /**
      * Get environment instance (singleton)
      *
      * This creates and/or returns an environment instance (singleton)
      * derived from $_SERVER variables. You may override the global server
      * variables by using `\Slim\Environment::mock()` instead.
      *
      * @param  bool             $refresh Refresh properties using global server variables?
      * @return \Slim\Environment
      */
     public static function getInstance($refresh = false)
     {
         if (is_null(self::$environment) || $refresh) {
             self::$environment = new self();
         }
 
         return self::$environment;
     }
 
     /**
      * Get mock environment instance
      *
      * @param  array       $userSettings
      * @return \Slim\Environment
      */
     public static function mock($userSettings = array())
     {
         $defaults = array(
             'REQUEST_METHOD' => 'GET',
             'SCRIPT_NAME' => '',
             'PATH_INFO' => '',
             'QUERY_STRING' => '',
             'SERVER_NAME' => 'localhost',
             'SERVER_PORT' => 80,
             'ACCEPT' => 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
             'ACCEPT_LANGUAGE' => 'en-US,en;q=0.8',
             'ACCEPT_CHARSET' => 'ISO-8859-1,utf-8;q=0.7,*;q=0.3',
             'USER_AGENT' => 'Slim Framework',
             'REMOTE_ADDR' => '127.0.0.1',
             'slim.url_scheme' => 'http',
             'slim.input' => '',
             'slim.errors' => @fopen('php://stderr', 'w')
         );
         self::$environment = new self(array_merge($defaults, $userSettings));
 
         return self::$environment;
     }
 
     /**
      * Constructor (private access)
      *
      * @param  array|null $settings If present, these are used instead of global server variables
      */
     private function __construct($settings = null)
     {
         if ($settings) {
             $this->properties = $settings;
         } else {
             $env = array();
 
             //The HTTP request method
             $env['REQUEST_METHOD'] = $_SERVER['REQUEST_METHOD'];
 
             //The IP
             $env['REMOTE_ADDR'] = $_SERVER['REMOTE_ADDR'];
 
             // Server params
             $scriptName = $_SERVER['SCRIPT_NAME']; // <-- "/foo/index.php"
             $requestUri = $_SERVER['REQUEST_URI']; // <-- "/foo/bar?test=abc" or "/foo/index.php/bar?test=abc"
             $queryString = isset($_SERVER['QUERY_STRING']) ? $_SERVER['QUERY_STRING'] : ''; // <-- "test=abc" or ""
 
             // Physical path
             if (strpos($requestUri, $scriptName) !== false) {
                 $physicalPath = $scriptName; // <-- Without rewriting
             } else {
                 $physicalPath = str_replace('\\', '', dirname($scriptName)); // <-- With rewriting
             }
             $env['SCRIPT_NAME'] = rtrim($physicalPath, '/'); // <-- Remove trailing slashes
 
             // Virtual path
             $env['PATH_INFO'] = substr_replace($requestUri, '', 0, strlen($physicalPath)); // <-- Remove physical path
             $env['PATH_INFO'] = str_replace('?' . $queryString, '', $env['PATH_INFO']); // <-- Remove query string
             $env['PATH_INFO'] = '/' . ltrim($env['PATH_INFO'], '/'); // <-- Ensure leading slash
 
             // Query string (without leading "?")
             $env['QUERY_STRING'] = $queryString;
 
             //Name of server host that is running the script
             $env['SERVER_NAME'] = $_SERVER['SERVER_NAME'];
 
             //Number of server port that is running the script
             $env['SERVER_PORT'] = $_SERVER['SERVER_PORT'];
 
             //HTTP request headers (retains HTTP_ prefix to match $_SERVER)
             $headers = \Slim\Http\Headers::extract($_SERVER);
             foreach ($headers as $key => $value) {
                 $env[$key] = $value;
             }
 
             //Is the application running under HTTPS or HTTP protocol?
             $env['slim.url_scheme'] = empty($_SERVER['HTTPS']) || $_SERVER['HTTPS'] === 'off' ? 'http' : 'https';
 
             //Input stream (readable one time only; not available for multipart/form-data requests)
             $rawInput = @file_get_contents('php://input');
             if (!$rawInput) {
                 $rawInput = '';
             }
             $env['slim.input'] = $rawInput;
 
             //Error stream
             $env['slim.errors'] = @fopen('php://stderr', 'w');
 
             $this->properties = $env;
         }
     }
 
     /**
      * Array Access: Offset Exists
      */
     public function offsetExists($offset)
     {
         return isset($this->properties[$offset]);
     }
 
     /**
      * Array Access: Offset Get
      */
     public function offsetGet($offset)
     {
         if (isset($this->properties[$offset])) {
             return $this->properties[$offset];
         } else {
             return null;
         }
     }
 
     /**
      * Array Access: Offset Set
      */
     public function offsetSet($offset, $value)
     {
         $this->properties[$offset] = $value;
     }
 
     /**
      * Array Access: Offset Unset
      */
     public function offsetUnset($offset)
     {
         unset($this->properties[$offset]);
     }
 
     /**
      * IteratorAggregate
      *
      * @return \ArrayIterator
      */
     public function getIterator()
     {
         return new \ArrayIterator($this->properties);
     }
 }