<?php
namespace GuzzleHttp\Cookie;
use Psr\Http\Message\RequestInterface;
use Psr\Http\Message\ResponseInterface;
/**
* Cookie jar that stores cookies as an array
*/
class CookieJar implements CookieJarInterface
{
/**
* @var SetCookie[] Loaded cookie data
*/
private $cookies = [];
/**
* @var bool
*/
private $strictMode;
/**
* @param bool $strictMode Set to true to throw exceptions when invalid
* cookies are added to the cookie jar.
* @param array $cookieArray Array of SetCookie objects or a hash of
* arrays that can be used with the SetCookie
* constructor
*/
public function __construct(bool $strictMode = false, array $cookieArray = [])
{
$this->strictMode = $strictMode;
foreach ($cookieArray as $cookie) {
if (!($cookie instanceof SetCookie)) {
$cookie = new SetCookie($cookie);
}
$this->setCookie($cookie);
}
}
/**
* Create a new Cookie jar from an associative array and domain.
*
* @param array $cookies Cookies to create the jar from
* @param string $domain Domain to set the cookies to
*/
public static function fromArray(array $cookies, string $domain): self
{
$cookieJar = new self();
foreach ($cookies as $name => $value) {
$cookieJar->setCookie(new SetCookie([
'Domain' => $domain,
'Name' => $name,
'Value' => $value,
'Discard' => true
]));
}
return $cookieJar;
}
/**
* Evaluate if this cookie should be persisted to storage
* that survives between requests.
*
* @param SetCookie $cookie Being evaluated.
* @param bool $allowSessionCookies If we should persist session cookies
*/
public static function shouldPersist(SetCookie $cookie, bool $allowSessionCookies = false): bool
{
if ($cookie->getExpires() || $allowSessionCookies) {
if (!$cookie->getDiscard()) {
return true;
}
}
return false;
}
/**
* Finds and returns the cookie based on the name
*
* @param string $name cookie name to search for
*
* @return SetCookie|null cookie that was found or null if not found
*/
public function getCookieByName(string $name): ?SetCookie
{
foreach ($this->cookies as $cookie) {
if ($cookie->getName() !== null && \strcasecmp($cookie->getName(), $name) === 0) {
return $cookie;
}
}
return null;
}
/**
* @inheritDoc
*/
public function toArray(): array
{
return \array_map(static function (SetCookie $cookie): array {
return $cookie->toArray();
}, $this->getIterator()->getArrayCopy());
}
/**
* @inheritDoc
*/
public function clear(?string $domain = null, ?string $path = null, ?string $name = null): void
{
if (!$domain) {
$this->cookies = [];
return;
} elseif (!$path) {
$this->cookies = \array_filter(
$this->cookies,
static function (SetCookie $cookie) use ($domain): bool {
return !$cookie->matchesDomain($domain);
}
);
} elseif (!$name) {
$this->cookies = \array_filter(
$this->cookies,
static function (SetCookie $cookie) use ($path, $domain): bool {
return !($cookie->matchesPath($path) &&
$cookie->matchesDomain($domain));
}
);
} else {
$this->cookies = \array_filter(
$this->cookies,
static function (SetCookie $cookie) use ($path, $domain, $name) {
return !($cookie->getName() == $name &&
$cookie->matchesPath($path) &&
$cookie->matchesDomain($domain));
}
);
}
}
/**
* @inheritDoc
*/
public function clearSessionCookies(): void
{
$this->cookies = \array_filter(
$this->cookies,
static function (SetCookie $cookie): bool {
return !$cookie->getDiscard() && $cookie->getExpires();
}
);
}
/**
* @inheritDoc
*/
public function setCookie(SetCookie $cookie): bool
{
// If the name string is empty (but not 0), ignore the set-cookie
// string entirely.
$name = $cookie->getName();
if (!$name && $name !== '0') {
return false;
}
// Only allow cookies with set and valid domain, name, value
$result = $cookie->validate();
if ($result !== true) {
if ($this->strictMode) {
throw new \RuntimeException('Invalid cookie: ' . $result);
}
$this->removeCookieIfEmpty($cookie);
return false;
}
// Resolve conflicts with previously set cookies
foreach ($this->cookies as $i => $c) {
// Two cookies are identical, when their path, and domain are
// identical.
if ($c->getPath() != $cookie->getPath() ||
$c->getDomain() != $cookie->getDomain() ||
$c->getName() != $cookie->getName()
) {
continue;
}
// The previously set cookie is a discard cookie and this one is
// not so allow the new cookie to be set
if (!$cookie->getDiscard() && $c->getDiscard()) {
unset($this->cookies[$i]);
continue;
}
// If the new cookie's expiration is further into the future, then
// replace the old cookie
if ($cookie->getExpires() > $c->getExpires()) {
unset($this->cookies[$i]);
continue;
}
// If the value has changed, we better change it
if ($cookie->getValue() !== $c->getValue()) {
unset($this->cookies[$i]);
continue;
}
// The cookie exists, so no need to continue
return false;
}
$this->cookies[] = $cookie;
return true;
}
public function count(): int
{
return \count($this->cookies);
}
/**
* @return \ArrayIterator<int, SetCookie>
*/
public function getIterator(): \ArrayIterator
{
return new \ArrayIterator(\array_values($this->cookies));
}
public function extractCookies(RequestInterface $request, ResponseInterface $response): void
{
if ($cookieHeader = $response->getHeader('Set-Cookie')) {
foreach ($cookieHeader as $cookie) {
$sc = SetCookie::fromString($cookie);
if (!$sc->getDomain()) {
$sc->setDomain($request->getUri()->getHost());
}
if (0 !== \strpos($sc->getPath(), '/')) {
$sc->setPath($this->getCookiePathFromRequest($request));
}
if (!$sc->matchesDomain($request->getUri()->getHost())) {
continue;
}
// Note: At this point `$sc->getDomain()` being a public suffix should
// be rejected, but we don't want to pull in the full PSL dependency.
$this->setCookie($sc);
}
}
}
/**
* Computes cookie path following RFC 6265 section 5.1.4
*
* @link https://tools.ietf.org/html/rfc6265#section-5.1.4
*/
private function getCookiePathFromRequest(RequestInterface $request): string
{
$uriPath = $request->getUri()->getPath();
if ('' === $uriPath) {
return '/';
}
if (0 !== \strpos($uriPath, '/')) {
return '/';
}
if ('/' === $uriPath) {
return '/';
}
$lastSlashPos = \strrpos($uriPath, '/');
if (0 === $lastSlashPos || false === $lastSlashPos) {
return '/';
}
return \substr($uriPath, 0, $lastSlashPos);
}
public function withCookieHeader(RequestInterface $request): RequestInterface
{
$values = [];
$uri = $request->getUri();
$scheme = $uri->getScheme();
$host = $uri->getHost();
$path = $uri->getPath() ?: '/';
foreach ($this->cookies as $cookie) {
if ($cookie->matchesPath($path) &&
$cookie->matchesDomain($host) &&
!$cookie->isExpired() &&
(!$cookie->getSecure() || $scheme === 'https')
) {
$values[] = $cookie->getName() . '='
. $cookie->getValue();
}
}
return $values
? $request->withHeader('Cookie', \implode('; ', $values))
: $request;
}
/**
* If a cookie already exists and the server asks to set it again with a
* null value, the cookie must be deleted.
*/
private function removeCookieIfEmpty(SetCookie $cookie): void
{
$cookieValue = $cookie->getValue();
if ($cookieValue === null || $cookieValue === '') {
$this->clear(
$cookie->getDomain(),
$cookie->getPath(),
$cookie->getName()
);
}
}
}