WebClient + HTTPS問題

Question

我目前正在與由第三方創建的系統集成。該系統要求我使用XML/HTTPS發送請求。第三方寄給我的證書，我安裝了它

我使用下面的代碼：

using (WebClient client = new WebClient()) 
{ 
    client.Headers.Add(HttpRequestHeader.ContentType, "text/xml"); 

    System.Text.ASCIIEncoding encoding=new System.Text.ASCIIEncoding(); 
    var response = client.UploadData(address, "POST", encoding.GetBytes(msg)); 
} 

此代碼返回以下WebException：

基礎連接已關閉：無法建立信任關係爲SSL/TLS安全通道。

UPDATE因爲這是我對工作的測試服務器，該證書不被信任和驗證失敗...要在測試/調試環境繞過這一點，創建一個新的ServerCertificateValidationCallback

ServicePointManager.ServerCertificateValidationCallback += new System.Net.Security.RemoteCertificateValidationCallback(bypassAllCertificateStuff); 

這裏是我的 「假」 回調

private static bool bypassAllCertificateStuff(object sender, X509Certificate cert, X509Chain chain, System.Net.Security.SslPolicyErrors error) 
{ 
    return true; 
} 

更多here和here

Answer 1

對於原始答案的VB.NET版本，在這裏你去（當需要使用'AddressOf'操作符連接事件時轉換器不能很好地工作）。第一代碼使用Web客戶端（在此之前，雲）或HttpWebRequest的（）對象：

ServicePointManager.ServerCertificateValidationCallback = New System.Net.Security.RemoteCertificateValidationCallback(AddressOf bypassAllCertificateStuff) 

..和有線向上方法的代碼：

Private Shared Function bypassAllCertificateStuff(ByVal sender As Object, ByVal cert As X509Certificate, ByVal chain As X509Chain, ByVal [error] As System.Net.Security.SslPolicyErrors) As Boolean 
    Return True 
End Function 

Answer 2

代碼的最短標記，以允許所有的證書是實際上：

ServicePointManager.ServerCertificateValidationCallback = delegate { return true; }; 

並且適用於此錯誤。不用說，你應該提供一個實際檢查證書的實現，並根據證書信息來決定通信是否安全。出於測試目的，請使用上面的代碼行。

Answer 3

試試這個，它的工作原理：

class Ejemplo 
{ 
    static void Main(string[] args) 
    { 
     string _response = null; 
     string _auth = "Basic"; 
     Uri _uri = new Uri(@"http://api.olr.com/Service.svc"); 

     string addres = @"http://api.olr.com/Service.svc"; 
     string proxy = @"http://xx.xx.xx.xx:xxxx"; 
     string user = @"platinum"; 
     string pass = @"01CFE4BF-11BA"; 


     NetworkCredential net = new NetworkCredential(user, pass); 
     CredentialCache _cc = new CredentialCache(); 

     WebCustom page = new WebCustom(addres, proxy); 
     page.connectProxy(); 

     _cc.Add(_uri, _auth, net); 

     page.myWebClient.Credentials = _cc; 

     Console.WriteLine(page.copyWeb()); 
    } 

} 

public class WebCustom 
{ 
     private string proxy; 
     private string url; 
     public WebClient myWebClient; 
     public WebProxy proxyObj; 
     public string webPageData; 


     public WebCustom(string _url, string _proxy) 
     { 
      url = _url; 
      proxy = _proxy; 
      myWebClient = new WebClient(); 
     } 

     public void connectProxy() 
     { 
      proxyObj = new WebProxy(proxy, true); 
      proxyObj.Credentials = CredentialCache.DefaultCredentials; 
      myWebClient.Proxy = proxyObj; 
     } 

     public string copyWeb() 
     { return webPageData = myWebClient.DownloadString(url); } 
}