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Edit File : JsonResponse.php \| Size : 7.23 KB
<?php /* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. / namespace Symfony\Component\HttpFoundation; /* * Response represents an HTTP response in JSON format. * * Note that this class does not force the returned JSON content to be an * object. It is however recommended that you do return an object as it * protects yourself against XSSI and JSON-JavaScript Hijacking. * * @see https://github.com/OWASP/CheatSheetSeries/blob/master/cheatsheets/AJAX_Security_Cheat_Sheet.md#always-return-json-with-an-object-on-the-outside * * @author Igor Wiedler <igor@wiedler.ch> / class JsonResponse extends Response { protected $data; protected $callback; // Encode <, >, ', &, and " characters in the JSON, making it also safe to be embedded into HTML. // 15 === JSON_HEX_TAG \| JSON_HEX_APOS \| JSON_HEX_AMP \| JSON_HEX_QUOT public const DEFAULT_ENCODING_OPTIONS = 15; protected $encodingOptions = self::DEFAULT_ENCODING_OPTIONS; /* * @param mixed $data The response data * @param int $status The response status code * @param array $headers An array of response headers * @param bool $json If the data is already a JSON string / public function __construct($data = null, int $status = 200, array $headers = [], bool $json = false) { parent::__construct('', $status, $headers); if ($json && !\is_string($data) && !is_numeric($data) && !\is_callable([$data, '__toString'])) { throw new \TypeError(sprintf('"%s": If $json is set to true, argument $data must be a string or object implementing __toString(), "%s" given.', __METHOD__, get_debug_type($data))); } if (null === $data) { $data = new \ArrayObject(); } $json ? $this->setJson($data) : $this->setData($data); } /* * Factory method for chainability. * * Example: * * return JsonResponse::create(['key' => 'value']) * ->setSharedMaxAge(300); * * @param mixed $data The JSON response data * @param int $status The response status code * @param array $headers An array of response headers * * @return static / public static function create($data = null, $status = 200, $headers = []) { return new static($data, $status, $headers); } /* * Factory method for chainability. * * Example: * * return JsonResponse::fromJsonString('{"key": "value"}') * ->setSharedMaxAge(300); * * @param string $data The JSON response string * @param int $status The response status code * @param array $headers An array of response headers * * @return static / public static function fromJsonString($data, $status = 200, $headers = []) { return new static($data, $status, $headers, true); } /* * Sets the JSONP callback. * * @param string\|null $callback The JSONP callback or null to use none * * @return $this * * @throws \InvalidArgumentException When the callback name is not valid / public function setCallback($callback = null) { if (null !== $callback) { // partially taken from https://geekality.net/2011/08/03/valid-javascript-identifier/ // partially taken from https://github.com/willdurand/JsonpCallbackValidator // JsonpCallbackValidator is released under the MIT License. See https://github.com/willdurand/JsonpCallbackValidator/blob/v1.1.0/LICENSE for details. // (c) William Durand <william.durand1@gmail.com> $pattern = '/^[$_\p{L}][$_\p{L}\p{Mn}\p{Mc}\p{Nd}\p{Pc}\x{200C}\x{200D}](?:\[(?:"(?:\\\.\|[^"\\\])"\|\'(?:\\\.\|[^\'\\\])\'\|\d+)\])?$/u'; $reserved = [ 'break', 'do', 'instanceof', 'typeof', 'case', 'else', 'new', 'var', 'catch', 'finally', 'return', 'void', 'continue', 'for', 'switch', 'while', 'debugger', 'function', 'this', 'with', 'default', 'if', 'throw', 'delete', 'in', 'try', 'class', 'enum', 'extends', 'super', 'const', 'export', 'import', 'implements', 'let', 'private', 'public', 'yield', 'interface', 'package', 'protected', 'static', 'null', 'true', 'false', ]; $parts = explode('.', $callback); foreach ($parts as $part) { if (!preg_match($pattern, $part) \|\| \in_array($part, $reserved, true)) { throw new \InvalidArgumentException('The callback name is not valid.'); } } } $this->callback = $callback; return $this->update(); } /* * Sets a raw string containing a JSON document to be sent. * * @param string $json * * @return $this / public function setJson($json) { $this->data = $json; return $this->update(); } /* * Sets the data to be sent as JSON. * * @param mixed $data * * @return $this * * @throws \InvalidArgumentException / public function setData($data = []) { try { $data = json_encode($data, $this->encodingOptions); } catch (\Exception $e) { if ('Exception' === \get_class($e) && str_starts_with($e->getMessage(), 'Failed calling ')) { throw $e->getPrevious() ?: $e; } throw $e; } if (\PHP_VERSION_ID >= 70300 && (\JSON_THROW_ON_ERROR & $this->encodingOptions)) { return $this->setJson($data); } if (\JSON_ERROR_NONE !== json_last_error()) { throw new \InvalidArgumentException(json_last_error_msg()); } return $this->setJson($data); } /* * Returns options used while encoding data to JSON. * * @return int / public function getEncodingOptions() { return $this->encodingOptions; } /* * Sets options used while encoding data to JSON. * * @param int $encodingOptions * * @return $this / public function setEncodingOptions($encodingOptions) { $this->encodingOptions = (int) $encodingOptions; return $this->setData(json_decode($this->data)); } /* * Updates the content and headers according to the JSON data and callback. * * @return $this / protected function update() { if (null !== $this->callback) { // Not using application/javascript for compatibility reasons with older browsers. $this->headers->set('Content-Type', 'text/javascript'); return $this->setContent(sprintf('/*/%s(%s);', $this->callback, $this->data)); } // Only set the header when there is none or when it equals 'text/javascript' (from a previous update with callback) // in order to not overwrite a custom definition. if (!$this->headers->has('Content-Type') \|\| 'text/javascript' === $this->headers->get('Content-Type')) { $this->headers->set('Content-Type', 'application/json'); } return $this->setContent($this->data); } } Back

Edit File : JsonResponse.php | Size : 7.23 KB

<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\HttpFoundation;

/**
 * Response represents an HTTP response in JSON format.
 *
 * Note that this class does not force the returned JSON content to be an
 * object. It is however recommended that you do return an object as it
 * protects yourself against XSSI and JSON-JavaScript Hijacking.
 *
 * @see https://github.com/OWASP/CheatSheetSeries/blob/master/cheatsheets/AJAX_Security_Cheat_Sheet.md#always-return-json-with-an-object-on-the-outside
 *
 * @author Igor Wiedler <igor@wiedler.ch>
 */
class JsonResponse extends Response
{
    protected $data;
    protected $callback;

// Encode <, >, ', &, and " characters in the JSON, making it also safe to be embedded into HTML.
    // 15 === JSON_HEX_TAG | JSON_HEX_APOS | JSON_HEX_AMP | JSON_HEX_QUOT
    public const DEFAULT_ENCODING_OPTIONS = 15;

protected $encodingOptions = self::DEFAULT_ENCODING_OPTIONS;

/**
     * @param mixed $data    The response data
     * @param int   $status  The response status code
     * @param array $headers An array of response headers
     * @param bool  $json    If the data is already a JSON string
     */
    public function __construct($data = null, int $status = 200, array $headers = [], bool $json = false)
    {
        parent::__construct('', $status, $headers);

if ($json && !\is_string($data) && !is_numeric($data) && !\is_callable([$data, '__toString'])) {
            throw new \TypeError(sprintf('"%s": If $json is set to true, argument $data must be a string or object implementing __toString(), "%s" given.', __METHOD__, get_debug_type($data)));
        }

if (null === $data) {
            $data = new \ArrayObject();
        }

$json ? $this->setJson($data) : $this->setData($data);
    }

/**
     * Factory method for chainability.
     *
     * Example:
     *
     *     return JsonResponse::create(['key' => 'value'])
     *         ->setSharedMaxAge(300);
     *
     * @param mixed $data    The JSON response data
     * @param int   $status  The response status code
     * @param array $headers An array of response headers
     *
     * @return static
     */
    public static function create($data = null, $status = 200, $headers = [])
    {
        return new static($data, $status, $headers);
    }

/**
     * Factory method for chainability.
     *
     * Example:
     *
     *     return JsonResponse::fromJsonString('{"key": "value"}')
     *         ->setSharedMaxAge(300);
     *
     * @param string $data    The JSON response string
     * @param int    $status  The response status code
     * @param array  $headers An array of response headers
     *
     * @return static
     */
    public static function fromJsonString($data, $status = 200, $headers = [])
    {
        return new static($data, $status, $headers, true);
    }

/**
     * Sets the JSONP callback.
     *
     * @param string|null $callback The JSONP callback or null to use none
     *
     * @return $this
     *
     * @throws \InvalidArgumentException When the callback name is not valid
     */
    public function setCallback($callback = null)
    {
        if (null !== $callback) {
            // partially taken from https://geekality.net/2011/08/03/valid-javascript-identifier/
            // partially taken from https://github.com/willdurand/JsonpCallbackValidator
            //      JsonpCallbackValidator is released under the MIT License. See https://github.com/willdurand/JsonpCallbackValidator/blob/v1.1.0/LICENSE for details.
            //      (c) William Durand <william.durand1@gmail.com>
            $pattern = '/^[$_\p{L}][$_\p{L}\p{Mn}\p{Mc}\p{Nd}\p{Pc}\x{200C}\x{200D}]*(?:\[(?:"(?:\\\.|[^"\\\])*"|\'(?:\\\.|[^\'\\\])*\'|\d+)\])*?$/u';
            $reserved = [
                'break', 'do', 'instanceof', 'typeof', 'case', 'else', 'new', 'var', 'catch', 'finally', 'return', 'void', 'continue', 'for', 'switch', 'while',
                'debugger', 'function', 'this', 'with', 'default', 'if', 'throw', 'delete', 'in', 'try', 'class', 'enum', 'extends', 'super',  'const', 'export',
                'import', 'implements', 'let', 'private', 'public', 'yield', 'interface', 'package', 'protected', 'static', 'null', 'true', 'false',
            ];
            $parts = explode('.', $callback);
            foreach ($parts as $part) {
                if (!preg_match($pattern, $part) || \in_array($part, $reserved, true)) {
                    throw new \InvalidArgumentException('The callback name is not valid.');
                }
            }
        }

$this->callback = $callback;

return $this->update();
    }

/**
     * Sets a raw string containing a JSON document to be sent.
     *
     * @param string $json
     *
     * @return $this
     */
    public function setJson($json)
    {
        $this->data = $json;

return $this->update();
    }

/**
     * Sets the data to be sent as JSON.
     *
     * @param mixed $data
     *
     * @return $this
     *
     * @throws \InvalidArgumentException
     */
    public function setData($data = [])
    {
        try {
            $data = json_encode($data, $this->encodingOptions);
        } catch (\Exception $e) {
            if ('Exception' === \get_class($e) && str_starts_with($e->getMessage(), 'Failed calling ')) {
                throw $e->getPrevious() ?: $e;
            }
            throw $e;
        }

if (\PHP_VERSION_ID >= 70300 && (\JSON_THROW_ON_ERROR & $this->encodingOptions)) {
            return $this->setJson($data);
        }

if (\JSON_ERROR_NONE !== json_last_error()) {
            throw new \InvalidArgumentException(json_last_error_msg());
        }

return $this->setJson($data);
    }

/**
     * Returns options used while encoding data to JSON.
     *
     * @return int
     */
    public function getEncodingOptions()
    {
        return $this->encodingOptions;
    }

/**
     * Sets options used while encoding data to JSON.
     *
     * @param int $encodingOptions
     *
     * @return $this
     */
    public function setEncodingOptions($encodingOptions)
    {
        $this->encodingOptions = (int) $encodingOptions;

return $this->setData(json_decode($this->data));
    }

/**
     * Updates the content and headers according to the JSON data and callback.
     *
     * @return $this
     */
    protected function update()
    {
        if (null !== $this->callback) {
            // Not using application/javascript for compatibility reasons with older browsers.
            $this->headers->set('Content-Type', 'text/javascript');

return $this->setContent(sprintf('/**/%s(%s);', $this->callback, $this->data));
        }

// Only set the header when there is none or when it equals 'text/javascript' (from a previous update with callback)
        // in order to not overwrite a custom definition.
        if (!$this->headers->has('Content-Type') || 'text/javascript' === $this->headers->get('Content-Type')) {
            $this->headers->set('Content-Type', 'application/json');
        }

return $this->setContent($this->data);
    }
}

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