rest.inc.php

<?php

/*
* File : Rest.inc.php
* Author : Arun Kumar Sekar
*/

class REST {

	public $_allow = array();
	public $_content_type = "application/json";
	public $_request = array();

	private $_method = "";
	private $_code = 200;

	public function __construct() {
		$this->inputs();
	}

	public function get_referer() {
		return $_SERVER['HTTP_REFERER'];
	}

	public function response( $data, $status ) {
		$this->_code = ( $status )?$status:200;
		$this->set_headers();
		echo $data;
		exit;
	}

	public function json( $data ) {
		if ( is_array( $data ) ) {
			return json_encode( $data );
		}
	}

	private function get_status_message() {
		$status = array(
			100 => 'Continue',
			101 => 'Switching Protocols',
			200 => 'OK',
			201 => 'Created',
			202 => 'Accepted',
			203 => 'Non-Authoritative Information',
			204 => 'No Content',
			205 => 'Reset Content',
			206 => 'Partial Content',
			300 => 'Multiple Choices',
			301 => 'Moved Permanently',
			302 => 'Found',
			303 => 'See Other',
			304 => 'Not Modified',
			305 => 'Use Proxy',
			306 => '(Unused)',
			307 => 'Temporary Redirect',
			400 => 'Bad Request',
			401 => 'Unauthorized',
			402 => 'Payment Required',
			403 => 'Forbidden',
			404 => 'Not Found',
			405 => 'Method Not Allowed',
			406 => 'Not Acceptable',
			407 => 'Proxy Authentication Required',
			408 => 'Request Timeout',
			409 => 'Conflict',
			410 => 'Gone',
			411 => 'Length Required',
			412 => 'Precondition Failed',
			413 => 'Request Entity Too Large',
			414 => 'Request-URI Too Long',
			415 => 'Unsupported Media Type',
			416 => 'Requested Range Not Satisfiable',
			417 => 'Expectation Failed',
			500 => 'Internal Server Error',
			501 => 'Not Implemented',
			502 => 'Bad Gateway',
			503 => 'Service Unavailable',
			504 => 'Gateway Timeout',
			505 => 'HTTP Version Not Supported' );

		return ( $status[$this->_code] ) ? $status[$this->_code] : $status[500];
	}

	public function get_request_method() {
		return $_SERVER['REQUEST_METHOD'];
	}

	private function inputs() {
		switch ( $this->get_request_method() ) {
		case "POST":
			$this->_request = $this->cleanInputs( $_POST );
			break;
		case "GET":
		case "DELETE":
			$this->_request = $this->cleanInputs( $_GET );
			break;
		case "PUT":
			parse_str( file_get_contents( "php://input" ), $this->_request );
			$this->_request = $this->cleanInputs( $this->_request );
			break;
		default:
			$this->response( '', 406 );
			break;
		}
	}

	private function cleanInputs( $data ) {
		$clean_input = array();
		if ( is_array( $data ) ) {
			foreach ( $data as $k => $v ) {
				$clean_input[$k] = $this->cleanInputs( $v );
			}
		} else {
			if ( get_magic_quotes_gpc() ) {
				$data = trim( stripslashes( $data ) );
			}
			$data = strip_tags( $data );
			$clean_input = trim( $data );
		}
		return $clean_input;
	}

	private function set_headers() {
		header( "HTTP/1.1 ".$this->_code." ".$this->get_status_message() );
		header( "Content-Type:".$this->_content_type );
	}

}

?>