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  */

    25 require_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  */

    33 class 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 }