使用ThinkPHP6中集成Acmephp实现SSL证书在线生成，并自动续签。

<?php
namespace appcontroller;
use AcmePhpSslPrivateKey;
use AcmePhpSslCertificate;
use AcmePhpCoreAcmeClient;
use AcmePhpBundleAcmeDomainAuthorizationChallengeSolver;
use AcmePhpBundleAcmeDomainAuthorizationChallenge;
use AcmePhpBundleAcmeDomainDomainValidator;
use SymfonyComponentHttpFoundationRequest;
class CertController
{
public function create(Request $request)
{
$domain = $request->get('domain');
$email = $request->get('email');
$client = new AcmeClient($domain, $email);
$solver = new AuthorizationChallengeSolver();
$challenge = $client->requestAuthorization($domain);
$solver->solve($challenge, $domain);
$validator = new DomainValidator();
$validator->validate($domain);
$privateKey = new PrivateKey();
$certificate = new Certificate($client->getCertificateData());
$privateKey->saveToFile(__DIR__.'/../public/certs/'.$domain.'.key');
$certificate->saveToFile(__DIR__.'/../public/certs/'.$domain.'.crt');
return 'OK';
}
}

我们首先从请求参数中获取域名和电子邮件地址，然后创建一个AcmeClient对象来请求证书。接着，我们通过AuthorizationChallengeSolver来解决验证挑战，然后使用DomainValidator来验证域名。最后，我们将私钥和证书保存到public/certs目录下。

5，自动续签SSL证书

用Acmephp的API来自动续签SSL证书。

<?php
namespace appcontroller;
use AcmePhpSslPrivateKey;
use AcmePhpSslCertificate;
use AcmePhpCoreAcmeClient;
use AcmePhpBundleAcmeDomainAuthorizationChallengeSolver;
use AcmePhpBundleAcmeDomainAuthorizationChallenge;
use AcmePhpBundleAcmeDomainDomainValidator;
use SymfonyComponentHttpFoundationRequest;
class CertController
{
public function renew(Request $request)
{
$domain = $request->get('domain');
$email = $request->get('email');
$client = new AcmeClient($domain, $email);
$certificate = new Certificate(file_get_contents(__DIR__.'/../public/certs/'.$domain.'.crt'));
$privateKey = new PrivateKey(file_get_contents(__DIR__.'/../public/certs/'.$domain.'.key'));
$client->renewCertificate($certificate, $privateKey);
$certificate->saveToFile(__DIR__.'/../public/certs/'.$domain.'.crt');
$privateKey->saveToFile(__DIR__.'/../public/certs/'.$domain.'.key');
return 'OK';
}
}