/framework/vendor/zend/Zend/Json/Server/Response/Http.php

 1<?php
 2/**
 3 * Zend Framework
 4 *
 5 * LICENSE
 6 *
 7 * This source file is subject to the new BSD license that is bundled
 8 * with this package in the file LICENSE.txt.
 9 * It is also available through the world-wide-web at this URL:
10 * http://framework.zend.com/license/new-bsd
11 * If you did not receive a copy of the license and are unable to
12 * obtain it through the world-wide-web, please send an email
13 * to license@zend.com so we can send you a copy immediately.
14 *
15 * @category   Zend
16 * @package    Zend_Json
17 * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
18 * @license    http://framework.zend.com/license/new-bsd     New BSD License
19 * @version    $Id: Http.php 20096 2010-01-06 02:05:09Z bkarwin $
20 */
21
22/**
23 * @see Zend_Json_Server_Response
24 */
25require_once 'Zend/Json/Server/Response.php';
26
27/**
28 * @category   Zend
29 * @package    Zend_Json
30 * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
31 * @license    http://framework.zend.com/license/new-bsd     New BSD License
32 */
33class Zend_Json_Server_Response_Http extends Zend_Json_Server_Response
34{
35    /**
36     * Emit JSON
37     *
38     * Send appropriate HTTP headers. If no Id, then return an empty string.
39     *
40     * @return string
41     */
42    public function toJson()
43    {
44        $this->sendHeaders();
45        if (!$this->isError() && null === $this->getId()) {
46            return '';
47        }
48
49        return parent::toJson();
50    }
51
52    /**
53     * Send headers
54     *
55     * If headers are already sent, do nothing. If null ID, send HTTP 204
56     * header. Otherwise, send content type header based on content type of
57     * service map.
58     *
59     * @return void
60     */
61    public function sendHeaders()
62    {
63        if (headers_sent()) {
64            return;
65        }
66
67        if (!$this->isError() && (null === $this->getId())) {
68            header('HTTP/1.1 204 No Content');
69            return;
70        }
71
72        if (null === ($smd = $this->getServiceMap())) {
73            return;
74        }
75
76        $contentType = $smd->getContentType();
77        if (!empty($contentType)) {
78            header('Content-Type: ' . $contentType);
79        }
80    }
81}