Files
acmeclient/src/Stores/CertificateStore.php
2016-03-15 13:21:44 +01:00

94 lines
3.2 KiB
PHP

<?php
namespace Kelunik\AcmeClient\Stores;
use Amp\CoroutineResult;
use Amp\File\FilesystemException;
use InvalidArgumentException;
use Kelunik\Certificate\Certificate;
use Webmozart\Assert\Assert;
class CertificateStore {
private $root;
public function __construct($root) {
if (!is_string($root)) {
throw new InvalidArgumentException(sprintf("\$root must be of type string, %s given.", gettype($root)));
}
$this->root = rtrim(str_replace("\\", "/", $root), "/");
}
public function get($name) {
return \Amp\resolve($this->doGet($name));
}
private function doGet($name) {
Assert::string($name, "Name must be a string. Got: %s");
try {
$contents = (yield \Amp\File\get($this->root . "/" . $name . "/cert.pem"));
yield new CoroutineResult($contents);
} catch (FilesystemException $e) {
throw new CertificateStoreException("Failed to load certificate.", 0, $e);
}
}
public function put(array $certificates) {
return \Amp\resolve($this->doPut($certificates));
}
private function doPut(array $certificates) {
if (empty($certificates)) {
throw new InvalidArgumentException("Empty array not allowed");
}
$cert = new Certificate($certificates[0]);
$commonName = $cert->getSubject()->getCommonName();
if (!$commonName) {
throw new CertificateStoreException("Certificate doesn't have a common name.");
}
// See https://github.com/amphp/dns/blob/4c4d450d4af26fc55dc56dcf45ec7977373a38bf/lib/functions.php#L83
if (isset($commonName[253]) || !preg_match("~^(?:[a-z0-9](?:[a-z0-9-]{0,61}[a-z0-9]){0,1})(?:\\.[a-z0-9][a-z0-9-]{0,61}[a-z0-9])*$~i", $commonName)) {
throw new CertificateStoreException("Invalid common name: '{$commonName}'");
}
try {
$chain = array_slice($certificates, 1);
$path = $this->root . "/" . $commonName;
$realpath = realpath($path);
if (!$realpath && !mkdir($path, 0775, true)) {
throw new FilesystemException("Couldn't create certificate directory: '{$path}'");
}
yield \Amp\File\put($path . "/cert.pem", $certificates[0]);
yield \Amp\File\chmod($path . "/cert.pem", 0644);
yield \Amp\File\put($path . "/fullchain.pem", implode("\n", $certificates));
yield \Amp\File\chmod($path . "/fullchain.pem", 0644);
yield \Amp\File\put($path . "/chain.pem", implode("\n", $chain));
yield \Amp\File\chmod($path . "/chain.pem", 0644);
} catch (FilesystemException $e) {
throw new CertificateStoreException("Couldn't save certificates for '{$commonName}'", 0, $e);
}
}
public function delete($name) {
return \Amp\resolve($this->doDelete($name));
}
private function doDelete($name) {
Assert::string($name, "Name must be a string. Got: %s");
foreach ((yield \Amp\File\scandir($this->root . "/" . $name)) as $file) {
yield \Amp\File\unlink($this->root . "/" . $name . "/" . $file);
}
yield \Amp\File\rmdir($this->root . "/" . $name);
}
}