.Net Core微信服务商二次进件的开发(2)

private async Task<T> V3UpLoadFile<T>(string uri, string meta, MultipartFormDataContent content) { var auth = SrvPayBuildAuthAsync(uri, meta); var header = new Dictionary<string, string> { { "Authorization",$"WECHATPAY2-SHA256-RSA2048 {auth}"}, { "Accept","*/*" }, { "Accept-Encoding","gzip,deflate,brn" }, { "User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.85 Safari/537.36 Edg/90.0.818.46" }, }; return await V3PostFileAsync<T>(uri, header, content); }

protected async Task<T> V3PostFileAsync<T>(string url, Dictionary<string, string> headers, MultipartFormDataContent content) { HttpResponseMessage res = null; try { if (headers != null && headers.Count > 0) { foreach (var header in headers) { _client.DefaultRequestHeaders.TryAddWithoutValidation(header.Key, header.Value); } } res = await _client.PostAsync(url, content); res.EnsureSuccessStatusCode(); var result = await res.Content.ReadAsStringAsync(); if (result == null) { return default; } return result.ToJson<T>(); } catch { var result = await res.Content.ReadAsStringAsync(); if (result == null) { return default; } return result.ToJson<T>(); } finally { if (content != null) { content.Dispose(); } } }

#region 二进制内容进行sha256 private static string GetHash(byte[] bytes) { if (bytes == null) throw new ArgumentNullException(nameof(bytes)); using SHA256 sha = SHA256.Create(); byte[] hashBytes = sha.ComputeHash(bytes); return BitConverter.ToString(hashBytes).Replace("-", "").ToLower(); }

四，敏感信息加密

使用获取到的证书certificateModel，进行加密

public static class RSAUtility { public static string RSAEncrypt(string text, Certificates certificateModel) { var bytes = Encoding.UTF8.GetBytes(certificateModel.EncryptCertificate.Ciphertext); using var x509 = new X509Certificate2(bytes); var rsaParam = x509.GetRSAPublicKey().ExportParameters(false); var rsa = new RSACryptoServiceProvider(); rsa.ImportParameters(rsaParam); var buff = rsa.Encrypt(Encoding.UTF8.GetBytes(text), true); return Convert.ToBase64String(buff); } }

五，查询进件状态

直接使用进件返回的Id,调用接口查询就Ok了

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