C# Websocket client with SSL

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Hello,
I would like to ask of anyone ever wrote web socket client in C# as e.g. console application. I did find some external libraries but either they had no SSL support or it didn't make any difference. I'm using .NET 3.5 and I can't change it. Unfortunately my client is using WebSocket and I have no other choice.

Posted 14-Jan-15 5:44am

Kurkey

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Sergey Alexandrovich Kryukov 14-Jan-15 14:44pm

Not clear. And not really a question. Why finding "external library"? Why searching or someone who "ever wrote Web socket". Why not sitting down and writing what you need using MSDN documentation? Any problems?
—SA

geo_m 15-Jan-15 8:53am

Isn't WebSocket supported only since net4.5?

Kurkey 15-Jan-15 8:56am

Yeah native support for WebSocket is available since .NET 3.5. Thats why I'm looking for good external library for .NET 3.5 so it possibly could work with mono.

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BacchusBeale · Answer 1 · 2015-01-15T10:39:00

To send requests and receive responses you can use:

HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);

where url is the query string "https://...".

The main difference with SSL is you must verify the certificate:

C#

//before any request you need this only once in your code
//you can put in beginning of you app

RemoteCertificateValidationCallback remote = ValidateServerCertificate;
ServicePointManager.ServerCertificateValidationCallback = remote;
                

public bool ValidateServerCertificate(
            object sender,
            X509Certificate certificate, 
            X509Chain chain,
            SslPolicyErrors sslPolicyErrors)
        {
            return true; //always accept... really should check it
        }