CarotDav_decompile/Rei.Fs/WebRequestCertificateValidationManager.cs

// Decompiled with JetBrains decompiler
// Type: Rei.Fs.WebRequestCertificateValidationManager
// Assembly: Rei.Fs, Version=1.13.2.8796, Culture=neutral, PublicKeyToken=null
// MVID: D8B08A8B-697C-4439-9CFF-1BE4EE46F7B0
// Assembly location: F:\Eigene Dateien\Dropbox\portable Collection\Progs\CarotDAV\Rei.Fs.dll

using System.Collections;
using System.Collections.Generic;
using System.Net;
using System.Net.Security;
using System.Security.Cryptography.X509Certificates;

namespace Rei.Fs
{
  public sealed class WebRequestCertificateValidationManager
  {
    private static Dictionary<WebRequest, WebRequestCertificateValidationManager.RequestStore> p_ReqToClient = new Dictionary<WebRequest, WebRequestCertificateValidationManager.RequestStore>();

    static WebRequestCertificateValidationManager()
    {
      ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(WebRequestCertificateValidationManager.InnerCertificateValidationCallback);
      IEnumerator registeredModules = AuthenticationManager.RegisteredModules;
      List<IAuthenticationModule> authenticationModuleList = new List<IAuthenticationModule>();
      while (registeredModules.MoveNext())
        authenticationModuleList.Add((IAuthenticationModule) registeredModules.Current);
      AuthenticationManager.Register((IAuthenticationModule) new WebRequestCertificateValidationManager.FookAuthClient());
      List<IAuthenticationModule>.Enumerator enumerator = authenticationModuleList.GetEnumerator();
      try
      {
        while (enumerator.MoveNext())
          AuthenticationManager.Register(enumerator.Current);
      }
      finally
      {
        enumerator.Dispose();
      }
    }

    private static bool InnerCertificateValidationCallback(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors sslPolicyErrors)
    {
      if (sslPolicyErrors == SslPolicyErrors.None)
        return true;
      int certErrorIgnores;
      lock (WebRequestCertificateValidationManager.p_ReqToClient)
      {
        WebRequest key = sender as WebRequest;
        if (!WebRequestCertificateValidationManager.p_ReqToClient.ContainsKey(key))
          return false;
        ConnectionSettingBase connectionSetting = WebRequestCertificateValidationManager.p_ReqToClient[key].ConnectionSetting;
        certErrorIgnores = (int) connectionSetting.CertErrorIgnores;
        connectionSetting.LastCertError = sslPolicyErrors;
      }
      return (sslPolicyErrors & (SslPolicyErrors) ~certErrorIgnores) == SslPolicyErrors.None;
    }

    public static void Register(WebRequest req, ConnectionSettingBase setting)
    {
      lock (WebRequestCertificateValidationManager.p_ReqToClient)
        WebRequestCertificateValidationManager.p_ReqToClient.Add(req, new WebRequestCertificateValidationManager.RequestStore(setting));
    }

    public static void UnRegister(WebRequest req)
    {
      lock (WebRequestCertificateValidationManager.p_ReqToClient)
        WebRequestCertificateValidationManager.p_ReqToClient.Remove(req);
    }

    public static string[] GetChallenges(WebRequest req)
    {
      lock (WebRequestCertificateValidationManager.p_ReqToClient)
      {
        if (!WebRequestCertificateValidationManager.p_ReqToClient.ContainsKey(req))
          return new string[0];
        return WebRequestCertificateValidationManager.p_ReqToClient[req].ChallengeList.ToArray();
      }
    }

    public static ConnectionSettingBase GetConnectionSetting(WebRequest req)
    {
      lock (WebRequestCertificateValidationManager.p_ReqToClient)
      {
        if (!WebRequestCertificateValidationManager.p_ReqToClient.ContainsKey(req))
          return (ConnectionSettingBase) null;
        return WebRequestCertificateValidationManager.p_ReqToClient[req].ConnectionSetting;
      }
    }

    private class FookAuthClient : IAuthenticationModule
    {
      public Authorization Authenticate(string challenge, WebRequest request, ICredentials credentials)
      {
        lock (WebRequestCertificateValidationManager.p_ReqToClient)
        {
          if (WebRequestCertificateValidationManager.p_ReqToClient.ContainsKey(request))
            WebRequestCertificateValidationManager.p_ReqToClient[request].ChallengeList.Add(challenge);
        }
        return (Authorization) null;
      }

      public string AuthenticationType
      {
        get
        {
          return ":fook";
        }
      }

      public bool CanPreAuthenticate
      {
        get
        {
          return false;
        }
      }

      public Authorization PreAuthenticate(WebRequest request, ICredentials credentials)
      {
        return (Authorization) null;
      }
    }

    private class RequestStore
    {
      public ConnectionSettingBase ConnectionSetting;
      public List<string> ChallengeList;
      public SslPolicyErrors LastCertError;

      public RequestStore(ConnectionSettingBase c)
      {
        this.ChallengeList = new List<string>();
        this.ConnectionSetting = c;
      }
    }
  }
}