Question

我想使用网络服务（https://realtime-listings-api.webservices.zpg.co.uk/sandbox/v1/listing/list）并根据文档（https://realtime-listings.webservices.zpg.co.uk/docs/latest/documentation.html）我必须发送.crt和.pem文件进行身份验证。我能够加载.crt文件，但对于.pem我收到错误Cannot find the requested object。我尝试了不同的加载PEM文件的方法。

我已关注以下线程，但仍无法从.pem文件加载X509Certificate。

我的代码如下

var webAddr = "https://realtime-listings-api.webservices.zpg.co.uk/sandbox/v1/listing/list";
                    var httpWebRequest = (HttpWebRequest)WebRequest.Create(webAddr);
                    httpWebRequest.ContentType = "application/json; profile=http://realtime-listings.webservices.zpg.co.uk/docs/v1.1/schemas/listing/list.json";
                    httpWebRequest.Method = "POST";

httpWebRequest.ClientCertificates.Add(X509Certificate.CreateFromCertFile(@"E:\ProcessZooplaData\zpg_realtime_listings_14810206-20261204.crt"));
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;

现在到这里一切都好了如果我尝试加载.pem文件然后我收到错误

var pem = System.IO.File.ReadAllText(@"E:\\ProcessZooplaData\\private.pem");
byte[] certBuffer = GetBytesFromPEM(pem, "RSA PRIVATE KEY");
                    var certificate = new X509Certificate(certBuffer);
                    httpWebRequest.ClientCertificates.Add(certificate);



byte[] GetBytesFromPEM(string pemString, string section)
        {
            var header = String.Format("-----BEGIN {0}-----", section);
            var footer = String.Format("-----END {0}-----", section);

            var start = pemString.IndexOf(header, StringComparison.Ordinal);
            if (start < 0)
                return null;

            start += header.Length;
            var end = pemString.IndexOf(footer, start, StringComparison.Ordinal) - start;

            if (end < 0)
                return null;

            return Convert.FromBase64String(pemString.Substring(start, end));
        }

我在Cannot find the requested object收到错误。其余代码如下

using (var streamWriter = new StreamWriter(httpWebRequest.GetRequestStream()))
                    {
                        string json = "{\"branch_reference\":\"test\"}";

                        streamWriter.Write(json);
                        streamWriter.Flush();
                    }

                    var httpResponse = (HttpWebResponse)httpWebRequest.GetResponse();
                    using (var streamReader = new StreamReader(httpResponse.GetResponseStream()))
                    {
                        var result = streamReader.ReadToEnd();
                        //return result;
                    }

我尝试过以下线程供参考 how to get private key from PEM file?

http://pages.infinit.net/ctech/20040812-0816.html

Answer 1

如果您的证书已经加载到您的证书商店，那么您可以执行以下操作：

var requestHandler = new WebRequestHandler();
var store = new X509Store("My", StoreLocation.LocalMachine);
store.Open(OpenFlags.ReadOnly);
var certificates = store.Certificates.Find(X509FindType.FindBySubjectDistinguishedName, certificateName, true);
if (certificates.Count > 0)
    requestHandler.ClientCertificates.Add(certificates[0]);
else
    throw new Exception(string.Format("Can't find certificate {0}", certificateName));
using (var client = new HttpClient(requestHandler))
{
    do work!
}

应该将商店中的证书添加到连接中。

然后，您需要在证书中打开证书存储区（运行mmc，将证书添加到本地计算机商店的控制台），浏览到您的证书，右键单击它并选择所有任务＆gt;管理私钥并授予您的应用程序将在“读取”访问证书私钥的情况下运行的用户帐户，您无需打开任何文件即可执行此操作。

当然，如果您在无法访问证书的共享托管环境中执行此操作，或者无法将其安装到证书库中，则这是一个不同的问题。

无法在c＃中使用Zoopla webservice

1 个答案: