/src/includes/classes/response.php

<?php
/**
 * Unamed - a WordPress replacement
 *
 * @category CMS
 * @package  Unamed
 * @author   Shane Logsdon <shane.a.logsdon@gmail.com>
 * @license  MIT http://mit.edu/
 * @link     http://bitbucket.org/slogsdon/unamed
 */

namespace Unamed\FrontController;
use Unamed\Interfaces;
{
    /**
     * Response implementation
     *
     * @category Class
     * @package  Unamed
     * @author   Shane Logsdon <shane.a.logsdon@gmail.com>
     * @license  MIT http://mit.edu/
     * @link     http://bitbucket.org/slogsdon/unamed
     * @since    1.0
     */
    class Response implements Interfaces\Response
    {
        /* Constants */
        const DEFAULT_STATUS = 200;
        const HTTP_10 = 'HTTP/1.0';
        const HTTP_11 = 'HTTP/1.1';

        /* Properties */
        protected $headers = array();
        protected $options = array();
        protected $status = self::DEFAULT_STATUS;
        protected $use10 = false;

        /* Methods */
        /**
         * __construct
         */
        public function __construct()
        {
        }

        /**
         * addHeader
         *
         * @param string $name    - 
         * @param string $value   - 
         * @param bool   $replace - 
         *
         * @return object(Response)
         */
        public function addHeader($name, $value, $replace = true)
        {
            $this->headers[] = array(
                'name' => $name,
                'value' => $value,
                'replace' => $replace,
            );
            return $this;
        }

        /**
         * addHeaders
         *
         * @param bool $headers - 
         *
         * @return object(Response)
         */
        public function addHeaders(array $headers)
        {
            foreach ($headers as $header) {
                $this->addHeader(
                    $header['name'],
                    $header['value'],
                    isset($header['replace']) ? $header['replace'] : true
                );
            }
            return $this;
        }

        /**
         * deliver
         *
         * @param string          $request - 
         * @param callback|string $data    - 
         *
         * @return nothing
         */
        public function deliver($request, $data)
        {
            // set up
            if ($this->use10) {
                header(self::HTTP_10 . ' ' . $this->status);
            } else {
                header(self::HTTP_11 . ' ' . $this->status);
            }
            foreach ($this->headers as $header) {
                header(
                    $header['name'] . ': ' . 
                    $header['value'], $header['replace']
                );
            }

            // deliver
            if (is_callable($data)) {
                call_user_func($data);
            } else {
                echo $data;
            }
            return;
        }

        /**
         * noCache
         *
         * @return object(Response)
         */
        public function noCache()
        {
            $this->addHeaders(
                array(
                    array(
                        'name' => 'Cache-Control',
                        'value' => 'no-store, no-cache, must-revalidate'
                    ),
                    array(
                        'name' => 'Cache-Control',
                        'value' => 'post-check=0, pre-check=0',
                        'replace' => false
                    ),
                    array(
                        'name' => 'Pragma',
                        'value' => 'no-cache'
                    ),
                )
            );
            return $this;
        }

        /**
         * setOptions
         *
         * @param string $options - 
         *
         * @return object(Response)
         */
        public function setOptions(array $options)
        {
            $this->options = $options;
            return $this;
        }

        /**
         * setStatus
         *
         * @param int $status - 
         *
         * @return object(Response)
         */
        public function setStatus($status)
        {
            if (is_integer($status))
                $this->status = $status;
            return $this;
        }

        /**
         * useHttp10
         *
         * @return object(Response)
         */
        public function useHttp10()
        {
            if (function_exists('apache_setenv')) {
                apache_setenv('downgrade-1.0', 'true');
                apache_setenv('force-response-1.0', 'true');
            }
            $this->use10 = true;
            return $this;
        }

        /**
         * useHttp11
         *
         * @return object(Response)
         */
        public function useHttp11()
        {
            if (function_exists('apache_setenv')) {
                apache_setenv('downgrade-1.0', 'false');
                apache_setenv('force-response-1.0', 'false');
            }
            $this->use10 = false;
            return $this;
        }
    };
}