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<?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 2.6.1
* @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'] = $requestUri;
if (substr($requestUri, 0, strlen($physicalPath)) == $physicalPath) {
$env['PATH_INFO'] = substr($requestUri, 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
//Fixes: https://github.com/slimphp/Slim/issues/962
$env['SERVER_PORT'] = isset($_SERVER['SERVER_PORT']) ? $_SERVER['SERVER_PORT'] : 80;
//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];
}
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);
}
}
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