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<?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;
/**
* Represents a cookie.
*
* @author Johannes M. Schmitt <schmittjoh@gmail.com>
*/
class Cookie
{
public const SAMESITE_NONE = 'none';
public const SAMESITE_LAX = 'lax';
public const SAMESITE_STRICT = 'strict';
protected $name;
protected $value;
protected $domain;
protected $expire;
protected $path;
protected $secure;
protected $httpOnly;
private $raw;
private $sameSite;
private $secureDefault = false;
private static $reservedCharsList = "=,; \t\r\n\v\f";
private const RESERVED_CHARS_FROM = ['=', ',', ';', ' ', "\t", "\r", "\n", "\v", "\f"];
private const RESERVED_CHARS_TO = ['%3D', '%2C', '%3B', '%20', '%09', '%0D', '%0A', '%0B', '%0C'];
/**
* Creates cookie from raw header string.
*
* @return static
*/
public static function fromString(string $cookie, bool $decode = false)
{
$data = [
'expires' => 0,
'path' => '/',
'domain' => null,
'secure' => false,
'httponly' => false,
'raw' => !$decode,
'samesite' => null,
];
$parts = HeaderUtils::split($cookie, ';=');
$part = array_shift($parts);
$name = $decode ? urldecode($part[0]) : $part[0];
$value = isset($part[1]) ? ($decode ? urldecode($part[1]) : $part[1]) : null;
$data = HeaderUtils::combine($parts) + $data;
$data['expires'] = self::expiresTimestamp($data['expires']);
if (isset($data['max-age']) && ($data['max-age'] > 0 || $data['expires'] > time())) {
$data['expires'] = time() + (int) $data['max-age'];
}
return new static($name, $value, $data['expires'], $data['path'], $data['domain'], $data['secure'], $data['httponly'], $data['raw'], $data['samesite']);
}
public static function create(string $name, string $value = null, $expire = 0, ?string $path = '/', string $domain = null, bool $secure = null, bool $httpOnly = true, bool $raw = false, ?string $sameSite = self::SAMESITE_LAX): self
{
return new self($name, $value, $expire, $path, $domain, $secure, $httpOnly, $raw, $sameSite);
}
/**
* @param string $name The name of the cookie
* @param string|null $value The value of the cookie
* @param int|string|\DateTimeInterface $expire The time the cookie expires
* @param string $path The path on the server in which the cookie will be available on
* @param string|null $domain The domain that the cookie is available to
* @param bool|null $secure Whether the client should send back the cookie only over HTTPS or null to auto-enable this when the request is already using HTTPS
* @param bool $httpOnly Whether the cookie will be made accessible only through the HTTP protocol
* @param bool $raw Whether the cookie value should be sent with no url encoding
* @param string|null $sameSite Whether the cookie will be available for cross-site requests
*
* @throws \InvalidArgumentException
*/
public function __construct(string $name, string $value = null, $expire = 0, ?string $path = '/', string $domain = null, bool $secure = null, bool $httpOnly = true, bool $raw = false, ?string $sameSite = 'lax')
{
// from PHP source code
if ($raw && false !== strpbrk($name, self::$reservedCharsList)) {
throw new \InvalidArgumentException(sprintf('The cookie name "%s" contains invalid characters.', $name));
}
if (empty($name)) {
throw new \InvalidArgumentException('The cookie name cannot be empty.');
}
$this->name = $name;
$this->value = $value;
$this->domain = $domain;
$this->expire = self::expiresTimestamp($expire);
$this->path = empty($path) ? '/' : $path;
$this->secure = $secure;
$this->httpOnly = $httpOnly;
$this->raw = $raw;
$this->sameSite = $this->withSameSite($sameSite)->sameSite;
}
/**
* Creates a cookie copy with a new value.
*
* @return static
*/
public function withValue(?string $value): self
{
$cookie = clone $this;
$cookie->value = $value;
return $cookie;
}
/**
* Creates a cookie copy with a new domain that the cookie is available to.
*
* @return static
*/
public function withDomain(?string $domain): self
{
$cookie = clone $this;
$cookie->domain = $domain;
return $cookie;
}
/**
* Creates a cookie copy with a new time the cookie expires.
*
* @param int|string|\DateTimeInterface $expire
*
* @return static
*/
public function withExpires($expire = 0): self
{
$cookie = clone $this;
$cookie->expire = self::expiresTimestamp($expire);
return $cookie;
}
/**
* Converts expires formats to a unix timestamp.
*
* @param int|string|\DateTimeInterface $expire
*
* @return int
*/
private static function expiresTimestamp($expire = 0)
{
// convert expiration time to a Unix timestamp
if ($expire instanceof \DateTimeInterface) {
$expire = $expire->format('U');
} elseif (!is_numeric($expire)) {
$expire = strtotime($expire);
if (false === $expire) {
throw new \InvalidArgumentException('The cookie expiration time is not valid.');
}
}
return 0 < $expire ? (int) $expire : 0;
}
/**
* Creates a cookie copy with a new path on the server in which the cookie will be available on.
*
* @return static
*/
public function withPath(string $path): self
{
$cookie = clone $this;
$cookie->path = '' === $path ? '/' : $path;
return $cookie;
}
/**
* Creates a cookie copy that only be transmitted over a secure HTTPS connection from the client.
*
* @return static
*/
public function withSecure(bool $secure = true): self
{
$cookie = clone $this;
$cookie->secure = $secure;
return $cookie;
}
/**
* Creates a cookie copy that be accessible only through the HTTP protocol.
*
* @return static
*/
public function withHttpOnly(bool $httpOnly = true): self
{
$cookie = clone $this;
$cookie->httpOnly = $httpOnly;
return $cookie;
}
/**
* Creates a cookie copy that uses no url encoding.
*
* @return static
*/
public function withRaw(bool $raw = true): self
{
if ($raw && false !== strpbrk($this->name, self::$reservedCharsList)) {
throw new \InvalidArgumentException(sprintf('The cookie name "%s" contains invalid characters.', $this->name));
}
$cookie = clone $this;
$cookie->raw = $raw;
return $cookie;
}
/**
* Creates a cookie copy with SameSite attribute.
*
* @return static
*/
public function withSameSite(?string $sameSite): self
{
if ('' === $sameSite) {
$sameSite = null;
} elseif (null !== $sameSite) {
$sameSite = strtolower($sameSite);
}
if (!\in_array($sameSite, [self::SAMESITE_LAX, self::SAMESITE_STRICT, self::SAMESITE_NONE, null], true)) {
throw new \InvalidArgumentException('The "sameSite" parameter value is not valid.');
}
$cookie = clone $this;
$cookie->sameSite = $sameSite;
return $cookie;
}
/**
* Returns the cookie as a string.
*
* @return string The cookie
*/
public function __toString()
{
if ($this->isRaw()) {
$str = $this->getName();
} else {
$str = str_replace(self::RESERVED_CHARS_FROM, self::RESERVED_CHARS_TO, $this->getName());
}
$str .= '=';
if ('' === (string) $this->getValue()) {
$str .= 'deleted; expires='.gmdate('D, d-M-Y H:i:s T', time() - 31536001).'; Max-Age=0';
} else {
$str .= $this->isRaw() ? $this->getValue() : rawurlencode($this->getValue());
if (0 !== $this->getExpiresTime()) {
$str .= '; expires='.gmdate('D, d-M-Y H:i:s T', $this->getExpiresTime()).'; Max-Age='.$this->getMaxAge();
}
}
if ($this->getPath()) {
$str .= '; path='.$this->getPath();
}
if ($this->getDomain()) {
$str .= '; domain='.$this->getDomain();
}
if (true === $this->isSecure()) {
$str .= '; secure';
}
if (true === $this->isHttpOnly()) {
$str .= '; httponly';
}
if (null !== $this->getSameSite()) {
$str .= '; samesite='.$this->getSameSite();
}
return $str;
}
/**
* Gets the name of the cookie.
*
* @return string
*/
public function getName()
{
return $this->name;
}
/**
* Gets the value of the cookie.
*
* @return string|null
*/
public function getValue()
{
return $this->value;
}
/**
* Gets the domain that the cookie is available to.
*
* @return string|null
*/
public function getDomain()
{
return $this->domain;
}
/**
* Gets the time the cookie expires.
*
* @return int
*/
public function getExpiresTime()
{
return $this->expire;
}
/**
* Gets the max-age attribute.
*
* @return int
*/
public function getMaxAge()
{
$maxAge = $this->expire - time();
return 0 >= $maxAge ? 0 : $maxAge;
}
/**
* Gets the path on the server in which the cookie will be available on.
*
* @return string
*/
public function getPath()
{
return $this->path;
}
/**
* Checks whether the cookie should only be transmitted over a secure HTTPS connection from the client.
*
* @return bool
*/
public function isSecure()
{
return $this->secure ?? $this->secureDefault;
}
/**
* Checks whether the cookie will be made accessible only through the HTTP protocol.
*
* @return bool
*/
public function isHttpOnly()
{
return $this->httpOnly;
}
/**
* Whether this cookie is about to be cleared.
*
* @return bool
*/
public function isCleared()
{
return 0 !== $this->expire && $this->expire < time();
}
/**
* Checks if the cookie value should be sent with no url encoding.
*
* @return bool
*/
public function isRaw()
{
return $this->raw;
}
/**
* Gets the SameSite attribute.
*
* @return string|null
*/
public function getSameSite()
{
return $this->sameSite;
}
/**
* @param bool $default The default value of the "secure" flag when it is set to null
*/
public function setSecureDefault(bool $default): void
{
$this->secureDefault = $default;
}
}