HttpListenerWebSocketContext.cs

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using System.Collections.Generic;
using System.Collections.Specialized;
using System.Security.Principal;
 
namespace System.Net.WebSockets;
 
public class HttpListenerWebSocketContext : WebSocketContext
{
    private readonly Uri _requestUri;
 
    private readonly NameValueCollection _headers;
 
    private readonly CookieCollection _cookieCollection;
 
    private readonly IPrincipal _user;
 
    private readonly bool _isAuthenticated;
 
    private readonly bool _isLocal;
 
    private readonly bool _isSecureConnection;
 
    private readonly string _origin;
 
    private readonly IEnumerable<string> _secWebSocketProtocols;
 
    private readonly string _secWebSocketVersion;
 
    private readonly string _secWebSocketKey;
 
    private readonly WebSocket _webSocket;
 
    public override Uri RequestUri => _requestUri;
 
    public override NameValueCollection Headers => _headers;
 
    public override string Origin => _origin;
 
    public override IEnumerable<string> SecWebSocketProtocols => _secWebSocketProtocols;
 
    public override string SecWebSocketVersion => _secWebSocketVersion;
 
    public override string SecWebSocketKey => _secWebSocketKey;
 
    public override CookieCollection CookieCollection => _cookieCollection;
 
    public override IPrincipal User => _user;
 
    public override bool IsAuthenticated => _isAuthenticated;
 
    public override bool IsLocal => _isLocal;
 
    public override bool IsSecureConnection => _isSecureConnection;
 
    public override WebSocket WebSocket => _webSocket;
 
    internal HttpListenerWebSocketContext(Uri requestUri, NameValueCollection headers, CookieCollection cookieCollection, IPrincipal user, bool isAuthenticated, bool isLocal, bool isSecureConnection, string origin, IEnumerable<string> secWebSocketProtocols, string secWebSocketVersion, string secWebSocketKey, WebSocket webSocket)
    {
        _cookieCollection = new CookieCollection();
        _cookieCollection.Add(cookieCollection);
        _headers = new NameValueCollection(headers);
        _user = CopyPrincipal(user);
        _requestUri = requestUri;
        _isAuthenticated = isAuthenticated;
        _isLocal = isLocal;
        _isSecureConnection = isSecureConnection;
        _origin = origin;
        _secWebSocketProtocols = secWebSocketProtocols;
        _secWebSocketVersion = secWebSocketVersion;
        _secWebSocketKey = secWebSocketKey;
        _webSocket = webSocket;
    }
 
    private static IPrincipal CopyPrincipal(IPrincipal user)
    {
        if (user != null)
        {
            if (user is WindowsPrincipal)
            {
                throw new PlatformNotSupportedException();
            }
            if (user.Identity is HttpListenerBasicIdentity httpListenerBasicIdentity)
            {
                return new GenericPrincipal(new HttpListenerBasicIdentity(httpListenerBasicIdentity.Name, httpListenerBasicIdentity.Password), null);
            }
        }
        return null;
    }
}