ZwiiCMS/core/vendor/filemanager/include/Response.php

<?php

/**
 * Class Response
 * Simplified copy of Symfony/Http-Foundation Response
 * to allow compatibility with frameworks
 *
 * @package Filemanager
 */
class Response {

    const HTTP_CONTINUE = 100;
    const HTTP_SWITCHING_PROTOCOLS = 101;
    const HTTP_PROCESSING = 102;            // RFC2518
    const HTTP_OK = 200;
    const HTTP_CREATED = 201;
    const HTTP_ACCEPTED = 202;
    const HTTP_NON_AUTHORITATIVE_INFORMATION = 203;
    const HTTP_NO_CONTENT = 204;
    const HTTP_RESET_CONTENT = 205;
    const HTTP_PARTIAL_CONTENT = 206;
    const HTTP_MULTI_STATUS = 207;          // RFC4918
    const HTTP_ALREADY_REPORTED = 208;      // RFC5842
    const HTTP_IM_USED = 226;               // RFC3229
    const HTTP_MULTIPLE_CHOICES = 300;
    const HTTP_MOVED_PERMANENTLY = 301;
    const HTTP_FOUND = 302;
    const HTTP_SEE_OTHER = 303;
    const HTTP_NOT_MODIFIED = 304;
    const HTTP_USE_PROXY = 305;
    const HTTP_RESERVED = 306;
    const HTTP_TEMPORARY_REDIRECT = 307;
    const HTTP_PERMANENTLY_REDIRECT = 308;  // RFC7238
    const HTTP_BAD_REQUEST = 400;
    const HTTP_UNAUTHORIZED = 401;
    const HTTP_PAYMENT_REQUIRED = 402;
    const HTTP_FORBIDDEN = 403;
    const HTTP_NOT_FOUND = 404;
    const HTTP_METHOD_NOT_ALLOWED = 405;
    const HTTP_NOT_ACCEPTABLE = 406;
    const HTTP_PROXY_AUTHENTICATION_REQUIRED = 407;
    const HTTP_REQUEST_TIMEOUT = 408;
    const HTTP_CONFLICT = 409;
    const HTTP_GONE = 410;
    const HTTP_LENGTH_REQUIRED = 411;
    const HTTP_PRECONDITION_FAILED = 412;
    const HTTP_REQUEST_ENTITY_TOO_LARGE = 413;
    const HTTP_REQUEST_URI_TOO_LONG = 414;
    const HTTP_UNSUPPORTED_MEDIA_TYPE = 415;
    const HTTP_REQUESTED_RANGE_NOT_SATISFIABLE = 416;
    const HTTP_EXPECTATION_FAILED = 417;
    const HTTP_I_AM_A_TEAPOT = 418;                                               // RFC2324
    const HTTP_UNPROCESSABLE_ENTITY = 422;                                        // RFC4918
    const HTTP_LOCKED = 423;                                                      // RFC4918
    const HTTP_FAILED_DEPENDENCY = 424;                                           // RFC4918
    const HTTP_RESERVED_FOR_WEBDAV_ADVANCED_COLLECTIONS_EXPIRED_PROPOSAL = 425;   // RFC2817
    const HTTP_UPGRADE_REQUIRED = 426;                                            // RFC2817
    const HTTP_PRECONDITION_REQUIRED = 428;                                       // RFC6585
    const HTTP_TOO_MANY_REQUESTS = 429;                                           // RFC6585
    const HTTP_REQUEST_HEADER_FIELDS_TOO_LARGE = 431;                             // RFC6585
    const HTTP_INTERNAL_SERVER_ERROR = 500;
    const HTTP_NOT_IMPLEMENTED = 501;
    const HTTP_BAD_GATEWAY = 502;
    const HTTP_SERVICE_UNAVAILABLE = 503;
    const HTTP_GATEWAY_TIMEOUT = 504;
    const HTTP_VERSION_NOT_SUPPORTED = 505;
    const HTTP_VARIANT_ALSO_NEGOTIATES_EXPERIMENTAL = 506;                        // RFC2295
    const HTTP_INSUFFICIENT_STORAGE = 507;                                        // RFC4918
    const HTTP_LOOP_DETECTED = 508;                                               // RFC5842
    const HTTP_NOT_EXTENDED = 510;                                                // RFC2774
    const HTTP_NETWORK_AUTHENTICATION_REQUIRED = 511;                             // RFC6585

    /**
     * Status codes translation table.
     *
     * The list of codes is complete according to the
     * {@link http://www.iana.org/assignments/http-status-codes/ Hypertext Transfer Protocol (HTTP) Status Code Registry}
     * (last updated 2012-02-13).
     *
     * Unless otherwise noted, the status code is defined in RFC2616.
     *
     * @var array
     */
    public static $statusTexts = array(
        100 => 'Continue',
        101 => 'Switching Protocols',
        102 => 'Processing',            // RFC2518
        200 => 'OK',
        201 => 'Created',
        202 => 'Accepted',
        203 => 'Non-Authoritative Information',
        204 => 'No Content',
        205 => 'Reset Content',
        206 => 'Partial Content',
        207 => 'Multi-Status',          // RFC4918
        208 => 'Already Reported',      // RFC5842
        226 => 'IM Used',               // RFC3229
        300 => 'Multiple Choices',
        301 => 'Moved Permanently',
        302 => 'Found',
        303 => 'See Other',
        304 => 'Not Modified',
        305 => 'Use Proxy',
        306 => 'Reserved',
        307 => 'Temporary Redirect',
        308 => 'Permanent Redirect',    // RFC7238
        400 => 'Bad Request',
        401 => 'Unauthorized',
        402 => 'Payment Required',
        403 => 'Forbidden',
        404 => 'Not Found',
        405 => 'Method Not Allowed',
        406 => 'Not Acceptable',
        407 => 'Proxy Authentication Required',
        408 => 'Request Timeout',
        409 => 'Conflict',
        410 => 'Gone',
        411 => 'Length Required',
        412 => 'Precondition Failed',
        413 => 'Request Entity Too Large',
        414 => 'Request-URI Too Long',
        415 => 'Unsupported Media Type',
        416 => 'Requested Range Not Satisfiable',
        417 => 'Expectation Failed',
        418 => 'I\'m a teapot',                                               // RFC2324
        422 => 'Unprocessable Entity',                                        // RFC4918
        423 => 'Locked',                                                      // RFC4918
        424 => 'Failed Dependency',                                           // RFC4918
        425 => 'Reserved for WebDAV advanced collections expired proposal',   // RFC2817
        426 => 'Upgrade Required',                                            // RFC2817
        428 => 'Precondition Required',                                       // RFC6585
        429 => 'Too Many Requests',                                           // RFC6585
        431 => 'Request Header Fields Too Large',                             // RFC6585
        500 => 'Internal Server Error',
        501 => 'Not Implemented',
        502 => 'Bad Gateway',
        503 => 'Service Unavailable',
        504 => 'Gateway Timeout',
        505 => 'HTTP Version Not Supported',
        506 => 'Variant Also Negotiates (Experimental)',                      // RFC2295
        507 => 'Insufficient Storage',                                        // RFC4918
        508 => 'Loop Detected',                                               // RFC5842
        510 => 'Not Extended',                                                // RFC2774
        511 => 'Network Authentication Required',                             // RFC6585
    );

    /**
     * @var  string
     */
    protected $content;

    /**
     * @var  int
     */
    protected $statusCode;

    /**
     * @var  string
     */
    protected $statusText;

    /**
     * @var  array
     */
    public $headers;

    /**
     * @var string
     */
    protected $version;

    /**
     * Construct the response
     *
     * @param  mixed  $content
     * @param  int    $statusCode
     * @param  array  $headers
     */
    public function __construct($content = '', $statusCode = 200, $headers = array())
    {
        $this->setContent($content);
        $this->setStatusCode($statusCode);
        $this->headers = $headers;
        $this->version = '1.1';
    }

    /**
     * Set the content on the response.
     *
     * @param  mixed  $content
     * @return $this
     */
    public function setContent($content)
    {
        if ($content instanceof ArrayObject || is_array($content))
        {
            $this->headers['Content-Type'] = array('application/json');

            $content = json_encode($content);
        }

        $this->content = $content;
    }

    /**
     * Returns the Response as an HTTP string.
     *
     * The string representation of the Response is the same as the
     * one that will be sent to the client only if the prepare() method
     * has been called before.
     *
     * @return string The Response as an HTTP string
     *
     * @see prepare()
     */
    public function __toString()
    {
        return
            sprintf('HTTP/%s %s %s', $this->version, $this->statusCode, $this->statusText)."\r\n".
            $this->headers."\r\n".
            $this->getContent();
    }

    /**
     * Sets the response status code.
     *
     * @param int   $code HTTP status code
     * @param mixed $text HTTP status text
     *
     * If the status text is null it will be automatically populated for the known
     * status codes and left empty otherwise.
     *
     * @return Response
     *
     * @throws \InvalidArgumentException When the HTTP status code is not valid
     *
     * @api
     */
    public function setStatusCode($code, $text = null)
    {
        $this->statusCode = $code = (int) $code;
        if ($this->isInvalid()) {
            throw new InvalidArgumentException(sprintf('The HTTP status code "%s" is not valid.', $code));
        }

        if (null === $text) {
            $this->statusText = isset(self::$statusTexts[$code]) ? self::$statusTexts[$code] : '';

            return $this;
        }

        if (false === $text) {
            $this->statusText = '';

            return $this;
        }

        $this->statusText = $text;

        return $this;
    }

    // http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
    /**
     * Is response invalid?
     *
     * @return bool
     *
     * @api
     */
    public function isInvalid()
    {
        return $this->statusCode < 100 || $this->statusCode >= 600;
    }

    /**
     * Set a header on the Response.
     *
     * @param string $key
     * @param string $value
     * @param bool $replace
     * @return $this
     */
    public function header($key, $value, $replace = true)
    {
        if (empty($this->headers[$key]))
        {
            $this->headers[$key] = array();
        }
        if ($replace)
        {
            $this->headers[$key] = array($value);
        }
        else
        {
            $this->headers[$key][] = $value;
        }

        return $this;
    }

    /**
     * Sends HTTP headers and content.
     *
     * @return Response
     *
     * @api
     */
    public function send()
    {
        $this->sendHeaders();
        $this->sendContent();

        if (function_exists('fastcgi_finish_request')) {
            fastcgi_finish_request();
        }

        return $this;
    }

    /**
     * Sends content for the current web response.
     *
     * @return Response
     */
    public function sendContent()
    {
        echo $this->content;

        return $this;
    }

    /**
     * Sends HTTP headers.
     *
     * @return Response
     */
    public function sendHeaders()
    {
        // headers have already been sent by the developer
        if (headers_sent()) {
            return $this;
        }

        // status
        header(sprintf('HTTP/%s %s %s', $this->version, $this->statusCode, $this->statusText), true, $this->statusCode);

        // headers
        foreach ($this->headers as $name => $values) {
            if (is_array($values))
            {
                foreach ($values as $value)
                {
                    header($name . ': ' . $value, false, $this->statusCode);
                }
            }
            else
            {
                header($name . ': ' . $values, false, $this->statusCode);
            }
        }

        return $this;
    }
}