lsm/DotNetCore.SKIT.FlurlHttpClient.Wechat
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fix(tenpaybusiness): 修复部分接口请求签名错误

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Fu Diwei
2024-02-15 19:07:13 +08:00
parent 4930bcaf76
commit ab4876296f
1 changed files with 21 additions and 17 deletions
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38
src/SKIT.FlurlHttpClient.Wechat.TenpayBusiness/Interceptors/WechatTenpayBusinessRequestSigningInterceptor.cs
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@@ -9,6 +9,7 @@ namespace SKIT.FlurlHttpClient.Wechat.TenpayBusiness.Interceptors
{
using SKIT.FlurlHttpClient.Internal;
using SKIT.FlurlHttpClient.Primitives;
using SKIT.FlurlHttpClient.Wechat.TenpayBusiness.Constants;
internal class WechatTenpayBusinessRequestSigningInterceptor : HttpInterceptor
{
@@ -45,39 +46,42 @@ namespace SKIT.FlurlHttpClient.Wechat.TenpayBusiness.Interceptors
string nonce = Guid.NewGuid().ToString("N");
string body = string.Empty;
if (context.FlurlCall.HttpRequestMessage.Content is MultipartFormDataContent formdataContent)
if (context.FlurlCall.HttpRequestMessage?.Content is not null)
{
// NOTICE: multipart/form-data 文件上传请求的待签名参数需特殊处理
var httpContent = formdataContent.SingleOrDefault(e => Constants.FormDataFields.FORMDATA_META.Equals(e.Headers.ContentDisposition?.Name?.Trim('\"')));
if (httpContent is not null)
if (context.FlurlCall.HttpRequestMessage.Content is MultipartFormDataContent multipartFormData)
{
HttpContent httpContent = multipartFormData.SingleOrDefault(e => FormDataFields.FORMDATA_META.Equals(e.Headers.ContentDisposition?.Name?.Trim('\"')));
if (httpContent is not null)
{
body = await _AsyncEx.RunTaskWithCancellationTokenAsync(httpContent.ReadAsStringAsync(), cancellationToken).ConfigureAwait(false);
}
}
else if (method != "GET")
{
HttpContent httpContent = context.FlurlCall.HttpRequestMessage.Content;
body = await _AsyncEx.RunTaskWithCancellationTokenAsync(httpContent.ReadAsStringAsync(), cancellationToken).ConfigureAwait(false);
}
}
else
{
body = context.FlurlCall.RequestBody ?? string.Empty;
}
string plainText = $"{method}\n{url}\n{timestamp}\n{nonce}\n{body}\n";
string signText;
string signData = $"{method}\n{url}\n{timestamp}\n{nonce}\n{body}\n";
string sign;
bool softSignRequired = _enterpriseId is not null && _enterpriseCertSn is not null && _enterpriseCertPk is not null;
string? softSignText = null;
string? softSign = null;
switch (_signAlg)
{
case Constants.SignAlgorithms.SHA256_WITH_RSA:
case SignAlgorithms.SHA256_WITH_RSA:
{
try
{
signText = Utilities.RSAUtility.Sign(_platformCertPk, plainText).Value!;
sign = Utilities.RSAUtility.Sign(_platformCertPk, signData).Value!;
if (softSignRequired)
{
byte[] keyBytes = EncodedString.FromBase64String(_enterpriseCertPk!);
byte[] msgBytes = EncodedString.FromBase64String(signText);
softSignText = EncodedString.ToBase64String(Utilities.RSAUtility.Sign(keyBytes, msgBytes)).Value!;
byte[] msgBytes = EncodedString.FromBase64String(sign);
softSign = EncodedString.ToBase64String(Utilities.RSAUtility.Sign(keyBytes, msgBytes)).Value!;
}
}
catch (Exception ex)
@@ -91,11 +95,11 @@ namespace SKIT.FlurlHttpClient.Wechat.TenpayBusiness.Interceptors
throw new WechatTenpayBusinessException($"Failed to sign request. Unsupported signing algorithm: \"{_signAlg}\".");
}
context.FlurlCall.Request.WithHeader(HTTP_HEADER_PLATFORM_AUTHORIZATION, $"platform_id=\"{_platformId}\",platform_serial_number=\"{_platformCertSn}\",nonce=\"{nonce}\",timestamp=\"{timestamp}\",signature=\"{signText}\",signature_algorithm=\"{_signAlg}\"");
context.FlurlCall.Request.WithHeader(HTTP_HEADER_PLATFORM_AUTHORIZATION, $"platform_id=\"{_platformId}\",platform_serial_number=\"{_platformCertSn}\",nonce=\"{nonce}\",timestamp=\"{timestamp}\",signature=\"{sign}\",signature_algorithm=\"{_signAlg}\"");
if (softSignRequired)
{
context.FlurlCall.Request.WithHeader(HTTP_HEADER_ENTERPRISE_AUTHORIZATION, $"ent_id=\"{_enterpriseId}\",enterprise_serial_number=\"{_enterpriseCertSn}\",signature=\"{softSignText}\",signature_algorithm=\"{_signAlg}\"");
context.FlurlCall.Request.WithHeader(HTTP_HEADER_ENTERPRISE_AUTHORIZATION, $"ent_id=\"{_enterpriseId}\",enterprise_serial_number=\"{_enterpriseCertSn}\",signature=\"{softSign}\",signature_algorithm=\"{_signAlg}\"");
}
}
}