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DotNetCore.SKIT.FlurlHttpCl…/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Extensions/WechatTenpayClientParameterExtensions.cs
2025-07-14 20:39:03 +08:00

126 lines
6.3 KiB
C#

using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
namespace SKIT.FlurlHttpClient.Wechat.TenpayV3
{
using SKIT.FlurlHttpClient.Wechat.TenpayV3.Constants;
public static class WechatTenpayClientParameterExtensions
{
/// <summary>
/// <para>生成客户端 JSAPI / 小程序调起支付所需的参数字典。</para>
/// <para>
/// REF: <br/>
/// <![CDATA[ https://pay.weixin.qq.com/doc/v3/merchant/4012266069 ]]> <br/>
/// <![CDATA[ https://pay.weixin.qq.com/doc/v3/merchant/4012266109 ]]> <br/>
/// <![CDATA[ https://pay.weixin.qq.com/doc/v3/merchant/4012791857 ]]> <br/>
/// <![CDATA[ https://pay.weixin.qq.com/doc/v3/merchant/4012791898 ]]> <br/>
/// <![CDATA[ https://pay.weixin.qq.com/doc/v3/partner/4012069855 ]]> <br/>
/// <![CDATA[ https://pay.weixin.qq.com/doc/v3/partner/4012085827 ]]> <br/>
/// <![CDATA[ https://pay.weixin.qq.com/doc/v3/partner/4012090156 ]]> <br/>
/// <![CDATA[ https://pay.weixin.qq.com/doc/v3/partner/4012090843 ]]> <br/>
/// <![CDATA[ https://pay.weixin.qq.com/doc/v3/partner/4012091236 ]]> <br/>
/// <![CDATA[ https://pay.weixin.qq.com/doc/v3/partner/4012166844 ]]> <br/>
/// <![CDATA[ https://pay.weixin.qq.com/doc/v3/partner/4012166847 ]]> <br/>
/// <![CDATA[ https://pay.weixin.qq.com/doc/v3/partner/4012602233 ]]> <br/>
/// <![CDATA[ https://pay.weixin.qq.com/doc/v3/partner/4015124455 ]]>
/// </para>
/// </summary>
/// <param name="client"></param>
/// <param name="appId"></param>
/// <param name="prepayId"></param>
/// <returns></returns>
public static IDictionary<string, string> GenerateParametersForJsapiPayRequest(this WechatTenpayClient client, string appId, string prepayId)
{
if (client is null) throw new ArgumentNullException(nameof(client));
if (appId is null) throw new ArgumentNullException(nameof(appId));
if (prepayId is null) throw new ArgumentNullException(nameof(prepayId));
string timestamp = DateTimeOffset.Now.ToLocalTime().ToUnixTimeSeconds().ToString();
string nonce = Guid.NewGuid().ToString("N");
string package = $"prepay_id={prepayId}";
string sign = Utilities.RSAUtility.SignWithSHA256(
privateKeyPem: client.Credentials.MerchantCertificatePrivateKey,
messageData: $"{appId}\n{timestamp}\n{nonce}\n{package}\n"
)!;
return new ReadOnlyDictionary<string, string>(new Dictionary<string, string>()
{
{ "appId", appId },
{ "timeStamp", timestamp },
{ "nonceStr", nonce },
{ "package", package },
{ "signType", SignTypes.RSA },
{ "paySign", sign }
});
}
/// <summary>
/// <para>生成 APP 调起支付所需的参数字典。</para>
/// <para>
/// REF: <br/>
/// <![CDATA[ https://pay.weixin.qq.com/doc/v3/partner/4012090168 ]]> <br/>
/// <![CDATA[ https://pay.weixin.qq.com/doc/v3/partner/4012090181 ]]> <br/>
/// <![CDATA[ https://pay.weixin.qq.com/doc/v3/partner/4012090949 ]]> <br/>
/// <![CDATA[ https://pay.weixin.qq.com/doc/v3/partner/4012166845 ]]> <br/>
/// <![CDATA[ https://pay.weixin.qq.com/doc/v3/partner/4013080233 ]]> <br/>
/// <![CDATA[ https://pay.weixin.qq.com/doc/v3/partner/4015001851 ]]> <br/>
/// <![CDATA[ https://pay.weixin.qq.com/doc/v3/partner/4015124372 ]]>
/// </para>
/// </summary>
/// <param name="client"></param>
/// <param name="appId"></param>
/// <param name="prepayId"></param>
/// <returns></returns>
public static IDictionary<string, string> GenerateParametersForAppPayRequest(this WechatTenpayClient client, string appId, string prepayId)
{
return GenerateParametersForAppPayRequest(client, merchantId: client.Credentials.MerchantId, appId: appId, prepayId: prepayId);
}
/// <summary>
/// <para>生成 APP 调起支付所需的参数字典。</para>
/// <para>
/// REF: <br/>
/// <![CDATA[ https://pay.weixin.qq.com/doc/v3/partner/4012090168 ]]> <br/>
/// <![CDATA[ https://pay.weixin.qq.com/doc/v3/partner/4012090181 ]]> <br/>
/// <![CDATA[ https://pay.weixin.qq.com/doc/v3/partner/4012090949 ]]> <br/>
/// <![CDATA[ https://pay.weixin.qq.com/doc/v3/partner/4012166845 ]]> <br/>
/// <![CDATA[ https://pay.weixin.qq.com/doc/v3/partner/4013080233 ]]> <br/>
/// <![CDATA[ https://pay.weixin.qq.com/doc/v3/partner/4015001851 ]]> <br/>
/// <![CDATA[ https://pay.weixin.qq.com/doc/v3/partner/4015124372 ]]>
/// </para>
/// </summary>
/// <param name="client"></param>
/// <param name="merchantId"></param>
/// <param name="appId"></param>
/// <param name="prepayId"></param>
/// <returns></returns>
public static IDictionary<string, string> GenerateParametersForAppPayRequest(this WechatTenpayClient client, string merchantId, string appId, string prepayId)
{
if (client is null) throw new ArgumentNullException(nameof(client));
if (merchantId is null) throw new ArgumentNullException(nameof(merchantId));
if (appId is null) throw new ArgumentNullException(nameof(appId));
if (prepayId is null) throw new ArgumentNullException(nameof(prepayId));
string timestamp = DateTimeOffset.Now.ToLocalTime().ToUnixTimeSeconds().ToString();
string nonce = Guid.NewGuid().ToString("N");
string sign = Utilities.RSAUtility.SignWithSHA256(
privateKeyPem: client.Credentials.MerchantCertificatePrivateKey,
messageData: $"{appId}\n{timestamp}\n{nonce}\n{prepayId}\n"
)!;
return new ReadOnlyDictionary<string, string>(new Dictionary<string, string>()
{
{ "appid", appId },
{ "partnerid", merchantId },
{ "prepayid", prepayId },
{ "package", "Sign=WXPay" },
{ "noncestr", nonce },
{ "timestamp", timestamp },
{ "sign", sign }
});
}
}
}