public LianLianPayClient(
ILogger <LianLianPayClient> logger,
IHttpClientFactory clientFactory,
IOptions <LianLianPayOptions> optionsAccessor)
{
Logger = logger;
ClientFactory = clientFactory;
Options = optionsAccessor.Value;
if (string.IsNullOrEmpty(Options.OidPartner))
{
throw new ArgumentNullException(nameof(Options.OidPartner));
}
if (string.IsNullOrEmpty(Options.BusiPartner))
{
throw new ArgumentNullException(nameof(Options.BusiPartner));
}
if (string.IsNullOrEmpty(Options.RsaPrivateKey))
{
throw new ArgumentNullException(nameof(Options.RsaPrivateKey));
}
if (string.IsNullOrEmpty(Options.RsaPublicKey))
{
throw new ArgumentNullException(nameof(Options.RsaPublicKey));
}
}
public async Task <T> ExecuteAsync <T>(ILianLianPayRequest <T> request, LianLianPayOptions options) where T : LianLianPayResponse
{
var txtParams = new LianLianPayDictionary(request.GetParameters())
{
{ OID_PARTNER, options.OidPartner },
{ SIGN_TYPE, options.SignType }
};
if (request is LianLianPayCreateBillRequest || request is LianLianPayUnifiedCardBindRequest)
{
txtParams.Add(TIME_STAMP, DateTime.Now);
txtParams.Add(BUSI_PARTNER, options.BusiPartner);
}
// 添加签名
var signContent = LianLianPaySecurity.GetSignContent(txtParams);
txtParams.Add(SIGN, MD5WithRSA.SignData(signContent, options.PrivateKey));
var content = string.Empty;
if (request is LianLianPayPaymentRequest || request is LianLianPayConfirmPaymentRequest)
{
var plaintext = Serialize(txtParams);
var ciphertext = LianLianPaySecurity.Encrypt(plaintext, options.PublicKey);
content = $"{{\"pay_load\":\"{ciphertext}\",\"oid_partner\":\"{options.OidPartner}\"}}";
}
else
{
content = Serialize(txtParams);
}
using (var client = _httpClientFactory.CreateClient(nameof(LianLianPay)))
{
var body = await client.DoPostAsync(request.GetRequestUrl(), content);
var parser = new LianLianPayJsonParser <T>();
var rsp = parser.Parse(body);
// 不签名参数
var excludePara = new List <string>();
if (request is LianLianPayOrderQueryRequest)
{
excludePara.Add("bank_name");
excludePara.Add("card_no");
}
else if (request is LianLianPayQueryBankCardBindListRequest)
{
excludePara.Add("agreement_list");
}
CheckNotifySign(rsp, excludePara, options);
return(rsp);
}
}
private void CheckNotifySign(LianLianPayDictionary dictionary, LianLianPayOptions options)
{
if (dictionary == null || dictionary.Count == 0)
{
throw new LianLianPayException("sign check fail: dictionary is Empty!");
}
if (!dictionary.TryGetValue("sign", out var sign))
{
throw new LianLianPayException("sign check fail: sign is Empty!");
}
var prestr = LianLianPaySecurity.GetSignContent(dictionary);
if (!MD5WithRSA.VerifyData(prestr, sign, options.PublicKey))
{
throw new LianLianPayException("sign check fail: check Sign and Data Fail JSON also");
}
}
public LianLianPayNotifyClient(
ILogger <LianLianPayClient> logger,
IOptions <LianLianPayOptions> optionsAccessor)
{
Logger = logger;
Options = optionsAccessor?.Value;
if (string.IsNullOrEmpty(Options.OidPartner))
{
throw new ArgumentNullException(nameof(Options.OidPartner));
}
if (string.IsNullOrEmpty(Options.BusiPartner))
{
throw new ArgumentNullException(nameof(Options.BusiPartner));
}
if (string.IsNullOrEmpty(Options.RsaPublicKey))
{
throw new ArgumentNullException(nameof(Options.RsaPublicKey));
}
}
public async Task <T> ExecuteAsync <T>(HttpRequest request, LianLianPayOptions options) where T : LianLianPayNotify
{
if (request.HasFormContentType)
{
var parameters = await GetParametersAsync(request);
var parser = new LianLianPayDictionaryParser <T>();
var rsp = parser.Parse(parameters);
CheckNotifySign(parameters, options);
return(rsp);
}
if (request.HasTextJsonContentType())
{
var body = await new StreamReader(request.Body).ReadToEndAsync();
var parser = new LianLianPayJsonParser <T>();
var rsp = parser.Parse(body);
CheckNotifySign(rsp.Parameters, options);
return(rsp);
}
throw new LianLianPayException("content type is not supported");
}
private void CheckNotifySign(LianLianPayResponse response, List <string> excludePara, LianLianPayOptions options)
{
if (string.IsNullOrEmpty(response.Body))
{
throw new LianLianPayException("sign check fail: Body is Empty!");
}
if (response.Parameters.Count == 0)
{
throw new LianLianPayException("sign check fail: Parameters is Empty!");
}
if (!response.Parameters.TryGetValue("sign", out var sign))
{
throw new LianLianPayException("sign check fail: sign is Empty!");
}
var prestr = LianLianPaySecurity.GetSignContent(response.Parameters, excludePara);
if (!MD5WithRSA.VerifyData(prestr, sign, options.PublicKey))
{
throw new LianLianPayException("sign check fail: check Sign and Data Fail JSON also");
}
}
