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<?php
namespace Http\Client\Common\Plugin;
use Http\Client\Common\Plugin;
use Http\Client\Exception\TransferException;
use Http\Message\Cookie;
use Http\Message\CookieJar;
use Http\Message\CookieUtil;
use Http\Message\Exception\UnexpectedValueException;
use Psr\Http\Message\RequestInterface;
use Psr\Http\Message\ResponseInterface;
/**
* Handle request cookies.
*
* @author Joel Wurtz <joel.wurtz@gmail.com>
*/
final class CookiePlugin implements Plugin
{
/**
* Cookie storage.
*
* @var CookieJar
*/
private $cookieJar;
/**
* @param CookieJar $cookieJar
*/
public function __construct(CookieJar $cookieJar)
{
$this->cookieJar = $cookieJar;
}
/**
* {@inheritdoc}
*/
public function handleRequest(RequestInterface $request, callable $next, callable $first)
{
foreach ($this->cookieJar->getCookies() as $cookie) {
if ($cookie->isExpired()) {
continue;
}
if (!$cookie->matchDomain($request->getUri()->getHost())) {
continue;
}
if (!$cookie->matchPath($request->getUri()->getPath())) {
continue;
}
if ($cookie->isSecure() && ('https' !== $request->getUri()->getScheme())) {
continue;
}
$request = $request->withAddedHeader('Cookie', sprintf('%s=%s', $cookie->getName(), $cookie->getValue()));
}
return $next($request)->then(function (ResponseInterface $response) use ($request) {
if ($response->hasHeader('Set-Cookie')) {
$setCookies = $response->getHeader('Set-Cookie');
foreach ($setCookies as $setCookie) {
$cookie = $this->createCookie($request, $setCookie);
// Cookie invalid do not use it
if (null === $cookie) {
continue;
}
// Restrict setting cookie from another domain
if (!preg_match("/\.{$cookie->getDomain()}$/", '.'.$request->getUri()->getHost())) {
continue;
}
$this->cookieJar->addCookie($cookie);
}
}
return $response;
});
}
/**
* Creates a cookie from a string.
*
* @param RequestInterface $request
* @param $setCookie
*
* @return Cookie|null
*
* @throws TransferException
*/
private function createCookie(RequestInterface $request, $setCookie)
{
$parts = array_map('trim', explode(';', $setCookie));
if (empty($parts) || !strpos($parts[0], '=')) {
return;
}
list($name, $cookieValue) = $this->createValueKey(array_shift($parts));
$maxAge = null;
$expires = null;
$domain = $request->getUri()->getHost();
$path = $request->getUri()->getPath();
$secure = false;
$httpOnly = false;
// Add the cookie pieces into the parsed data array
foreach ($parts as $part) {
list($key, $value) = $this->createValueKey($part);
switch (strtolower($key)) {
case 'expires':
try {
$expires = CookieUtil::parseDate($value);
} catch (UnexpectedValueException $e) {
throw new TransferException(
sprintf(
'Cookie header `%s` expires value `%s` could not be converted to date',
$name,
$value
),
null,
$e
);
}
break;
case 'max-age':
$maxAge = (int) $value;
break;
case 'domain':
$domain = $value;
break;
case 'path':
$path = $value;
break;
case 'secure':
$secure = true;
break;
case 'httponly':
$httpOnly = true;
break;
}
}
return new Cookie($name, $cookieValue, $maxAge, $domain, $path, $secure, $httpOnly, $expires);
}
/**
* Separates key/value pair from cookie.
*
* @param $part
*
* @return array
*/
private function createValueKey($part)
{
$parts = explode('=', $part, 2);
$key = trim($parts[0]);
$value = isset($parts[1]) ? trim($parts[1]) : true;
return [$key, $value];
}
}
|
