code.grnet.gr Git - pithos-ms-client/blob - trunk/Pithos.Client.WPF/Preferences/LoginView.xaml.cs

   1 using System;
   2 using System.Collections.Generic;
   3 using System.ComponentModel;
   4 using System.Linq;
   5 using System.Linq.Expressions;
   6 using System.Reflection;
   7 using System.Text;
   8 using System.Threading.Tasks;
   9 using System.Windows;
  10 using System.Windows.Controls;
  11 using System.Windows.Data;
  12 using System.Windows.Documents;
  13 using System.Windows.Input;
  14 using System.Windows.Media;
  15 using System.Windows.Media.Imaging;
  16 using System.Windows.Shapes;
  17 using Caliburn.Micro;
  18 using Pithos.Client.WPF.Properties;
  19
  20
  21 namespace Pithos.Client.WPF.Preferences
  22 {
  23     /// <summary>
  24     /// Interaction logic for LoginView.xaml
  25     /// </summary>
  26     public partial class LoginView : Window,INotifyPropertyChanged
  27     {
  28         private static readonly log4net.ILog Log = log4net.LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
  29
  30         private Uri _uri;
  31         private Uri _logoutUri;
  32         private bool _loggingOut;
  33
  34         public Uri Uri
  35         {
  36             get
  37             {
  38                 return _uri;
  39             }
  40             set
  41             {
  42                 _uri = value;
  43                 RaisePropertyChanged(() => Uri);
  44             }
  45         }
  46
  47         private void RaisePropertyChanged(Expression<Func<Uri>> property)
  48         {
  49             if (PropertyChanged != null)
  50             {
  51                 PropertyChanged(this, new PropertyChangedEventArgs(property.GetMemberInfo().Name));
  52             }
  53         }
  54
  55         public LoginView(Uri loginUri, Uri logoutUri, string account = null)
  56         {
  57             InitializeComponent();
  58             if (String.IsNullOrWhiteSpace(account))
  59                 this.Title = "Retrieve Pithos credentials";
  60             else
  61                 this.Title = "Retrieve Pithos credentials for " + account;
  62             Uri = loginUri;
  63
  64
  65             _logoutUri = logoutUri;
  66
  67             _loggingOut = true;
  68
  69             LoginBrowser.Navigate(logoutUri ?? loginUri);
  70         }
  71
  72
  73         public string Token { get; set; }
  74         public string Account { get; set; }
  75
  76
  77         private void LoginBrowser_Navigating(object sender, System.Windows.Navigation.NavigatingCancelEventArgs e)
  78         {
  79             IsBusy.IsBusy = true;
  80             LoginBrowser.Visibility=Visibility.Hidden;
  81
  82             if (Log.IsDebugEnabled)
  83                 Log.Debug(e.ToString());
  84
  85             if (e.Uri.Scheme == "pithos")
  86             {
  87                 Log.DebugFormat("Authentication response [{0}]",e.Uri);
  88                 e.Cancel = true;
  89                 var response = ParseResponse(e.Uri.Query);
  90                 Account = response["user"];
  91                 Token = response["token"];
  92                 Log.InfoFormat("Token received for [{0}]", Account);
  93                 DialogResult = true;
  94                 this.Close();
  95             }
  96         }
  97
  98         private static Dictionary<string, string> ParseResponse(string request)
  99         {
 100             //var parts = request.Split(' ');
 101             var query = request.TrimStart('?');
 102
 103             var items = query.Split('&')
 104                 .Select(pair => pair.Split('='))
 105                 .ToDictionary(arr => arr[0].ToLower(), arr => Uri.UnescapeDataString(arr[1]));
 106             return items;
 107         }
 108
 109         public event PropertyChangedEventHandler PropertyChanged;
 110
 111         private void Retry_Click(object sender, RoutedEventArgs e)
 112         {
 113             LoginBrowser.Navigate(Uri);
 114         }
 115
 116         private void LoginBrowser_Navigated(object sender, System.Windows.Navigation.NavigationEventArgs e)
 117         {
 118             if (_loggingOut)
 119             {
 120                 _loggingOut = false;
 121                 IsBusy.BusyContent = "Opening login screen";
 122                 LoginBrowser.Navigate(Uri);
 123             }
 124             else
 125             {
 126                 IsBusy.IsBusy = false;
 127                 LoginBrowser.Visibility = Visibility.Visible;
 128             }
 129         }
 130     }
 131 }