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