170 lines
3.8 KiB
PHP
170 lines
3.8 KiB
PHP
<?php
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namespace wellrested;
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/*******************************************************************************
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* Request
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*
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* A Request instance contains information relating to the current HTTP request
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* a client sent to the server.
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*
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* Since the main use for this class is to provide info about the one specific
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* request, the class exposes the static getRequest() method for obtaining a
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* singleton Request instance.
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*
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* @package WellRESTed
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*
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******************************************************************************/
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/**
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* @property string body Entity body of the request
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* @property array headers Associative array of HTTP headers
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* @property string method HTTP method or verb for the request
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* @property string path Path component of the URI for the request
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* @property string pathParts Fragments of the path, delimited by slashes
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* @property array query Associative array of query parameters
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*/
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class Request {
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/**
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* Entity body of the request
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* @var string
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*/
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protected $body;
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/**
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* Associative array of HTTP headers
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* @var array
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*/
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protected $headers;
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/**
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* HTTP method or verb for the request
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* @var string
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*/
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protected $method;
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/**
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* Path component of the URI for the request
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* @var string
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*/
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protected $path;
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/**
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* Array of fragments of the path, delimited by slashes
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* @var array
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*/
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protected $pathParts;
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/**
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* Associative array of query parameters
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* @var array
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*/
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protected $query;
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/**
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* Singleton instance derived from reading info from Apache.
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* @var Request
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* @static
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*/
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static protected $theRequest;
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// -------------------------------------------------------------------------
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// !Accessors
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public function __get($name) {
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switch ($name) {
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case 'body':
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return $this->getBody();
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case 'headers':
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return $this->getHeaders();
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case 'method':
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return $this->getMethod();
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case 'path':
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return $this->getPath();
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case 'pathParts':
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return $this->getPathParts();
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case 'query':
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return $this->getQuery();
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default:
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throw new Exception('Property ' . $name . ' does not exist.');
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}
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}
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public function getBody() {
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return $this->body;
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}
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public function getHeaders() {
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return $this->headers;
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}
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public function getMethod() {
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return $this->method;
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}
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public function getPath() {
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return $this->path;
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}
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public function getPathParts() {
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return $this->pathParts;
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}
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public function getQuery() {
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return $this->query;
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}
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// -------------------------------------------------------------------------
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/**
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* Set instance members based on the HTTP request sent to the server.
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*/
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public function readHttpRequest() {
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$this->body = file_get_contents("php://input");
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$this->headers = apache_request_headers();
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$this->method = $_SERVER['REQUEST_METHOD'];
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$uri = parse_url($_SERVER['REQUEST_URI']);
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$this->path = $uri['path'];
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$this->pathParts = explode('/', substr($this->path, 1));
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$this->query = $_GET;
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} // readHttpRequest()
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/**
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* Return a reference to the singleton instance of the Request derived
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* from the server's information about the request sent to the script.
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*
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* @return Request
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* @static
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*/
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static public function getRequest() {
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if (!isset(self::$theRequest)) {
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$klass = __CLASS__;
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$request = new $klass();
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$request->readHttpRequest();
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self::$theRequest = $request;
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}
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return self::$theRequest;
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} // getRequest()
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}
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?>
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