public async Task <WeChatPayPlatformCertificate> GetCertificateAsync(IWeChatPayClient client, WeChatPayOptions options) { // 如果证书序列号已缓存,则直接使用缓存的 var platformCert = _certDictionary.Values.Where(cert => cert.EffectiveTime <DateTime.Now && cert.ExpireTime> DateTime.Now).FirstOrDefault(); if (platformCert != null) { return(platformCert); } // 否则重新下载新的平台证书 var request = new WeChatPayCertificatesRequest(); var response = await client.ExecuteAsync(request, options); foreach (var certificate in response.Certificates) { // 若证书序列号未被缓存,解密证书并加入缓存 if (!_certDictionary.ContainsKey(certificate.SerialNo)) { switch (certificate.EncryptCertificate.Algorithm) { case nameof(AEAD_AES_256_GCM): { var certStr = AEAD_AES_256_GCM.Decrypt(certificate.EncryptCertificate.Nonce, certificate.EncryptCertificate.Ciphertext, certificate.EncryptCertificate.AssociatedData, options.V3Key); var cert = new WeChatPayPlatformCertificate { SerialNo = certificate.SerialNo, EffectiveTime = DateTime.Parse(certificate.EffectiveTime), ExpireTime = DateTime.Parse(certificate.ExpireTime), Certificate = new X509Certificate2(Encoding.ASCII.GetBytes(certStr)) }; _certDictionary.TryAdd(certificate.SerialNo, cert); } break; default: throw new WeChatPayException($"Unknown algorithm: {certificate.EncryptCertificate.Algorithm}"); } } } // 重新从缓存获取 platformCert = _certDictionary.Values.Where(cert => cert.EffectiveTime <DateTime.Now && cert.ExpireTime> DateTime.Now).FirstOrDefault(); if (platformCert != null) { return(platformCert); } else { throw new WeChatPayException("Download certificates failed!"); } }
public async Task <IActionResult> GetCertificates() { if (Request.Method == "POST") { var request = new WeChatPayCertificatesRequest(); var response = await _client.ExecuteAsync(request, _optionsAccessor.Value); ViewData["response"] = response.Body; return(View()); } return(View()); }
private async Task <X509Certificate2> LoadPlatformCertificateAsync(string serial, WeChatPayOptions options) { // 如果证书序列号已缓存,则直接使用缓存的 if (_platformCertificateManager.TryGetValue(serial, out var certificate2)) { return(certificate2); } // 否则重新下载新的平台证书 var request = new WeChatPayCertificatesRequest(); var response = await ExecuteAsync(request, options); foreach (var certificate in response.Certificates) { // 若证书序列号未被缓存,解密证书并加入缓存 if (!_platformCertificateManager.ContainsKey(certificate.SerialNo)) { switch (certificate.EncryptCertificate.Algorithm) { case nameof(AEAD_AES_256_GCM): { var certStr = AEAD_AES_256_GCM.Decrypt(certificate.EncryptCertificate.Nonce, certificate.EncryptCertificate.Ciphertext, certificate.EncryptCertificate.AssociatedData, options.V3Key); var cert = new X509Certificate2(Encoding.UTF8.GetBytes(certStr)); _platformCertificateManager.TryAdd(certificate.SerialNo, cert); } break; default: throw new WeChatPayException($"Unknown algorithm: {certificate.EncryptCertificate.Algorithm}"); } } } // 重新从缓存获取 if (_platformCertificateManager.TryGetValue(serial, out certificate2)) { return(certificate2); } else { throw new WeChatPayException("Download certificates failed!"); } }