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UserDecisionCertificatePolicy.cs

//
// FSpotTabbloExport.UserDecisionCertificatePolicy
//
// Authors:
//    Wojciech Dzierzanowski (wojciech.dzierzanowski@gmail.com)
//
// (C) Copyright 2008 Wojciech Dzierzanowski
//

// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//

using System;
using System.Diagnostics;
using System.Net;
using System.Reflection;
using System.Security.Cryptography.X509Certificates;
using System.Threading;

using FSpot.Utils;

namespace FSpotTabbloExport {

      class UserDecisionCertificatePolicy
                  : ApplicationCentricCertificatePolicy {

            private const string DialogName = "trust_error_dialog";
            [GtkBeans.Builder.Object] Gtk.Dialog dialog;
            [GtkBeans.Builder.Object] Gtk.Label url_label;
            [GtkBeans.Builder.Object] Gtk.RadioButton abort_radiobutton;
            [GtkBeans.Builder.Object] Gtk.RadioButton once_radiobutton;
            [GtkBeans.Builder.Object] Gtk.RadioButton always_radiobutton;

            private X509Certificate certificate;
            private WebRequest request;
            private Decision decision;

            private Object decision_lock = new Object ();
            private ManualResetEvent decision_event;


            protected override Decision GetDecision (
                        X509Certificate certificate,
                        WebRequest request)
            {
                  this.certificate = certificate;
                  this.request = request;

                  lock (decision_lock) {
                        GLib.Idle.Add (this.DoGetDecision);
                        decision_event = new ManualResetEvent (false);
                        decision_event.WaitOne ();
                  }

                  return decision;
            }

            private bool DoGetDecision ()
            {
                  GtkBeans.Builder builder = new GtkBeans.Builder (
                              Assembly.GetExecutingAssembly (),
                              "TrustError.ui", null);
                  builder.Autoconnect (this);
                  dialog = (Gtk.Dialog) builder.GetObject (DialogName);

                  url_label.Markup = String.Format (
                              url_label.Text, String.Format (
                                          "<b>{0}</b>",
                                          request.RequestUri));

                  Gtk.ResponseType response =
                              (Gtk.ResponseType) dialog.Run ();
                  Log.Debug ("Decision dialog response: " + response);

                  dialog.Destroy ();

                  decision = Decision.DontTrust;
                  if (0 == response) {
                        if (abort_radiobutton.Active) {
                              decision = Decision.DontTrust;
                        } else if (once_radiobutton.Active) {
                              decision = Decision.TrustOnce;
                        } else if (always_radiobutton.Active) {
                              decision = Decision.TrustAlways;
                        } else {
                              Debug.Assert (false,
                                          "Unhandled decision");
                        }
                  }

                  decision_event.Set ();
                  return false;
            }
      }
}

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