110 lines
2.8 KiB
PHP
110 lines
2.8 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\HttpFoundation;
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/**
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* Response represents an HTTP response in JSON format.
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*
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* @author Igor Wiedler <igor@wiedler.ch>
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*/
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class JsonResponse extends Response
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{
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protected $data;
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protected $callback;
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/**
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* Constructor.
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*
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* @param mixed $data The response data
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* @param integer $status The response status code
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* @param array $headers An array of response headers
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* @param string $callback A JSONP callback name
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*/
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public function __construct($data = array(), $status = 200, $headers = array(), $callback = null)
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{
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parent::__construct('', $status, $headers);
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$this->setData($data);
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$this->setCallback($callback);
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}
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/**
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* {@inheritDoc}
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*
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* @param string $callback A JSONP callback name.
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*/
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static public function create($data = array(), $status = 200, $headers = array(), $callback = null)
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{
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return new static($data, $status, $headers, $callback);
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}
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/**
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* Sets the JSONP callback.
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*
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* @param string $callback
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*
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* @return JsonResponse
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*/
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public function setCallback($callback = null)
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{
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if ($callback) {
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// taken from http://www.geekality.net/2011/08/03/valid-javascript-identifier/
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$pattern = '/^[$_\p{L}][$_\p{L}\p{Mn}\p{Mc}\p{Nd}\p{Pc}\x{200C}\x{200D}]*+$/u';
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if (!preg_match($pattern, $callback)) {
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throw new \InvalidArgumentException('The callback name is not valid.');
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}
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}
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$this->callback = $callback;
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return $this->update();
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}
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/**
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* Sets the data to be sent as json.
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*
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* @param mixed $data
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*
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* @return JsonResponse
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*/
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public function setData($data = array())
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{
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// root should be JSON object, not array
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if (is_array($data) && 0 === count($data)) {
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$data = new \ArrayObject();
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}
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$this->data = json_encode($data);
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return $this->update();
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}
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/**
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* Updates the content and headers according to the json data and callback.
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*
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* @return JsonResponse
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*/
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protected function update()
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{
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$content = $this->data;
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$this->headers->set('Content-Type', 'application/json', false);
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if ($this->callback) {
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$content = sprintf('%s(%s);', $this->callback, $content);
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// Not using application/javascript for compatibility reasons with older browsers.
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$this->headers->set('Content-Type', 'text/javascript', true);
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}
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return $this->setContent($content);
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}
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}
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