private function solveChallenge(AcmeService $acme, KeyPair $keyPair, $domain, $path)
{
list($location, $challenges) = (yield $acme->requestChallenges($domain));
$goodChallenges = $this->findSuitableCombination($challenges);
if (empty($goodChallenges)) {
throw new AcmeException("Couldn't find any combination of challenges which this client can solve!");
}
$challenge = $challenges->challenges[reset($goodChallenges)];
$token = $challenge->token;
if (!preg_match("#^[a-zA-Z0-9-_]+\$#", $token)) {
throw new AcmeException("Protocol violation: Invalid Token!");
}
$payload = $acme->generateHttp01Payload($keyPair, $token);
$this->climate->whisper(" Providing payload at http://{$domain}/.well-known/acme-challenge/{$token}");
$challengeStore = new ChallengeStore($path);
try {
(yield $challengeStore->put($token, $payload, isset($user) ? $user : null));
(yield $acme->verifyHttp01Challenge($domain, $token, $payload));
(yield $acme->answerChallenge($challenge->uri, $payload));
(yield $acme->pollForChallenge($location));
$this->climate->comment(" {$domain} is now authorized.");
(yield $challengeStore->delete($token));
} catch (Exception $e) {
// no finally because generators...
(yield $challengeStore->delete($token));
throw $e;
} catch (Throwable $e) {
// no finally because generators...
(yield $challengeStore->delete($token));
throw $e;
}
}
