ACC SHELL
<?php
/**
* This file is part of the Nette Framework (http://nette.org)
*
* Copyright (c) 2004 David Grudl (http://davidgrudl.com)
*
* For the full copyright and license information, please view
* the file license.txt that was distributed with this source code.
*/
namespace Nette\Http;
use Nette;
/**
* HttpResponse class.
*
* @author David Grudl
*
* @property int $code
* @property-read bool $sent
* @property-read array $headers
*/
final class Response extends Nette\Object implements IResponse
{
/** @var bool Send invisible garbage for IE 6? */
private static $fixIE = TRUE;
/** @var string The domain in which the cookie will be available */
public $cookieDomain = '';
/** @var string The path in which the cookie will be available */
public $cookiePath = '/';
/** @var string Whether the cookie is available only through HTTPS */
public $cookieSecure = FALSE;
/** @var string Whether the cookie is hidden from client-side */
public $cookieHttpOnly = TRUE;
/** @var int HTTP response code */
private $code = self::S200_OK;
/**
* Sets HTTP response code.
* @param int
* @return self
* @throws Nette\InvalidArgumentException if code is invalid
* @throws Nette\InvalidStateException if HTTP headers have been sent
*/
public function setCode($code)
{
$code = (int) $code;
if ($code < 100 || $code > 599) {
throw new Nette\InvalidArgumentException("Bad HTTP response '$code'.");
} elseif (headers_sent($file, $line)) {
throw new Nette\InvalidStateException("Cannot set HTTP code after HTTP headers have been sent" . ($file ? " (output started at $file:$line)." : "."));
} else {
$this->code = $code;
$protocol = isset($_SERVER['SERVER_PROTOCOL']) ? $_SERVER['SERVER_PROTOCOL'] : 'HTTP/1.1';
header($protocol . ' ' . $code, TRUE, $code);
}
return $this;
}
/**
* Returns HTTP response code.
* @return int
*/
public function getCode()
{
return $this->code;
}
/**
* Sends a HTTP header and replaces a previous one.
* @param string header name
* @param string header value
* @return self
* @throws Nette\InvalidStateException if HTTP headers have been sent
*/
public function setHeader($name, $value)
{
if (headers_sent($file, $line)) {
throw new Nette\InvalidStateException("Cannot send header after HTTP headers have been sent" . ($file ? " (output started at $file:$line)." : "."));
}
if ($value === NULL && function_exists('header_remove')) {
header_remove($name);
} elseif (strcasecmp($name, 'Content-Length') === 0 && ini_get('zlib.output_compression')) {
// ignore, PHP bug #44164
} else {
header($name . ': ' . $value, TRUE, $this->code);
}
return $this;
}
/**
* Adds HTTP header.
* @param string header name
* @param string header value
* @return self
* @throws Nette\InvalidStateException if HTTP headers have been sent
*/
public function addHeader($name, $value)
{
if (headers_sent($file, $line)) {
throw new Nette\InvalidStateException("Cannot send header after HTTP headers have been sent" . ($file ? " (output started at $file:$line)." : "."));
}
header($name . ': ' . $value, FALSE, $this->code);
return $this;
}
/**
* Sends a Content-type HTTP header.
* @param string mime-type
* @param string charset
* @return self
* @throws Nette\InvalidStateException if HTTP headers have been sent
*/
public function setContentType($type, $charset = NULL)
{
$this->setHeader('Content-Type', $type . ($charset ? '; charset=' . $charset : ''));
return $this;
}
/**
* Redirects to a new URL. Note: call exit() after it.
* @param string URL
* @param int HTTP code
* @return void
* @throws Nette\InvalidStateException if HTTP headers have been sent
*/
public function redirect($url, $code = self::S302_FOUND)
{
if (isset($_SERVER['SERVER_SOFTWARE']) && preg_match('#^Microsoft-IIS/[1-5]#', $_SERVER['SERVER_SOFTWARE'])
&& $this->getHeader('Set-Cookie') !== NULL
) {
$this->setHeader('Refresh', "0;url=$url");
return;
}
$this->setCode($code);
$this->setHeader('Location', $url);
echo "<h1>Redirect</h1>\n\n<p><a href=\"" . htmlSpecialChars($url) . "\">Please click here to continue</a>.</p>";
}
/**
* Sets the number of seconds before a page cached on a browser expires.
* @param string|int|DateTime time, value 0 means "until the browser is closed"
* @return self
* @throws Nette\InvalidStateException if HTTP headers have been sent
*/
public function setExpiration($time)
{
if (!$time) { // no cache
$this->setHeader('Cache-Control', 's-maxage=0, max-age=0, must-revalidate');
$this->setHeader('Expires', 'Mon, 23 Jan 1978 10:00:00 GMT');
return $this;
}
$time = Nette\DateTime::from($time);
$this->setHeader('Cache-Control', 'max-age=' . ($time->format('U') - time()));
$this->setHeader('Expires', self::date($time));
return $this;
}
/**
* Checks if headers have been sent.
* @return bool
*/
public function isSent()
{
return headers_sent();
}
/**
* Return the value of the HTTP header.
* @param string
* @param mixed
* @return mixed
*/
public function getHeader($header, $default = NULL)
{
$header .= ':';
$len = strlen($header);
foreach (headers_list() as $item) {
if (strncasecmp($item, $header, $len) === 0) {
return ltrim(substr($item, $len));
}
}
return $default;
}
/**
* Returns a list of headers to sent.
* @return array
*/
public function getHeaders()
{
$headers = array();
foreach (headers_list() as $header) {
$a = strpos($header, ':');
$headers[substr($header, 0, $a)] = (string) substr($header, $a + 2);
}
return $headers;
}
/**
* Returns HTTP valid date format.
* @param string|int|DateTime
* @return string
*/
public static function date($time = NULL)
{
$time = Nette\DateTime::from($time);
$time->setTimezone(new \DateTimeZone('GMT'));
return $time->format('D, d M Y H:i:s \G\M\T');
}
/**
* @return void
*/
public function __destruct()
{
if (self::$fixIE && isset($_SERVER['HTTP_USER_AGENT']) && strpos($_SERVER['HTTP_USER_AGENT'], 'MSIE ') !== FALSE
&& in_array($this->code, array(400, 403, 404, 405, 406, 408, 409, 410, 500, 501, 505), TRUE)
&& $this->getHeader('Content-Type', 'text/html') === 'text/html'
) {
echo Nette\Utils\Strings::random(2e3, " \t\r\n"); // sends invisible garbage for IE
self::$fixIE = FALSE;
}
}
/**
* Sends a cookie.
* @param string name of the cookie
* @param string value
* @param string|int|DateTime expiration time, value 0 means "until the browser is closed"
* @param string
* @param string
* @param bool
* @param bool
* @return self
* @throws Nette\InvalidStateException if HTTP headers have been sent
*/
public function setCookie($name, $value, $time, $path = NULL, $domain = NULL, $secure = NULL, $httpOnly = NULL)
{
if (headers_sent($file, $line)) {
throw new Nette\InvalidStateException("Cannot set cookie after HTTP headers have been sent" . ($file ? " (output started at $file:$line)." : "."));
}
setcookie(
$name,
$value,
$time ? Nette\DateTime::from($time)->format('U') : 0,
$path === NULL ? $this->cookiePath : (string) $path,
$domain === NULL ? $this->cookieDomain : (string) $domain,
$secure === NULL ? $this->cookieSecure : (bool) $secure,
$httpOnly === NULL ? $this->cookieHttpOnly : (bool) $httpOnly
);
$this->removeDuplicateCookies();
return $this;
}
/**
* Removes duplicate cookies from response.
* @return void
*/
public function removeDuplicateCookies()
{
if (headers_sent($file, $line) || ini_get('suhosin.cookie.encrypt')) {
return;
}
$flatten = array();
foreach (headers_list() as $header) {
if (preg_match('#^Set-Cookie: .+?=#', $header, $m)) {
$flatten[$m[0]] = $header;
if (PHP_VERSION_ID < 50300) { // multiple deleting due PHP bug #61605
header('Set-Cookie:');
} else {
header_remove('Set-Cookie');
}
}
}
foreach (array_values($flatten) as $key => $header) {
header($header, $key === 0);
}
}
/**
* Deletes a cookie.
* @param string name of the cookie.
* @param string
* @param string
* @param bool
* @return void
* @throws Nette\InvalidStateException if HTTP headers have been sent
*/
public function deleteCookie($name, $path = NULL, $domain = NULL, $secure = NULL)
{
$this->setCookie($name, FALSE, 0, $path, $domain, $secure);
}
}
ACC SHELL 2018