code.grnet.gr Git - pithos-ms-client/blob - trunk/Pithos.Client.WPF/Shell/ShellViewModel.cs

   1 #region
   2 /* -----------------------------------------------------------------------
   3  * <copyright file="ShellViewModel.cs" company="GRNet">
   4  *
   5  * Copyright 2011-2012 GRNET S.A. All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or
   8  * without modification, are permitted provided that the following
   9  * conditions are met:
  10  *
  11  *   1. Redistributions of source code must retain the above
  12  *      copyright notice, this list of conditions and the following
  13  *      disclaimer.
  14  *
  15  *   2. Redistributions in binary form must reproduce the above
  16  *      copyright notice, this list of conditions and the following
  17  *      disclaimer in the documentation and/or other materials
  18  *      provided with the distribution.
  19  *
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
  22  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  23  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  24  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
  25  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  27  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  28  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  29  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  31  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  32  * POSSIBILITY OF SUCH DAMAGE.
  33  *
  34  * The views and conclusions contained in the software and
  35  * documentation are those of the authors and should not be
  36  * interpreted as representing official policies, either expressed
  37  * or implied, of GRNET S.A.
  38  * </copyright>
  39  * -----------------------------------------------------------------------
  40  */
  41 #endregion
  42 using System.Collections.Concurrent;
  43 using System.Diagnostics;
  44 using System.Diagnostics.Contracts;
  45 using System.IO;
  46 using System.Net;
  47 using System.Reflection;
  48 using System.Runtime.InteropServices;
  49 using System.ServiceModel;
  50 using System.Threading.Tasks;
  51 using System.Windows;
  52 using System.Windows.Controls.Primitives;
  53 using AppLimit.NetSparkle;
  54 using Caliburn.Micro;
  55 using Hardcodet.Wpf.TaskbarNotification;
  56 using Pithos.Client.WPF.Configuration;
  57 using Pithos.Client.WPF.FileProperties;
  58 using Pithos.Client.WPF.Preferences;
  59 using Pithos.Client.WPF.SelectiveSynch;
  60 using Pithos.Client.WPF.Services;
  61 using Pithos.Client.WPF.Shell;
  62 using Pithos.Core;
  63 using Pithos.Core.Agents;
  64 using Pithos.Interfaces;
  65 using System;
  66 using System.Collections.Generic;
  67 using System.Linq;
  68 using Pithos.Network;
  69 using StatusService = Pithos.Client.WPF.Services.StatusService;
  70
  71 namespace Pithos.Client.WPF {
  72         using System.ComponentModel.Composition;
  73
  74
  75         ///<summary>
  76         /// The "shell" of the Pithos application displays the taskbar  icon, menu and notifications.
  77         /// The shell also hosts the status service called by shell extensions to retrieve file info
  78         ///</summary>
  79         ///<remarks>
  80         /// It is a strange "shell" as its main visible element is an icon instead of a window
  81         /// The shell subscribes to the following events:
  82         /// * Notification:  Raised by components that want to notify the user. Usually displayed in a balloon
  83         /// * SelectiveSynchChanges: Notifies that the user made changes to the selective synch folders for an account. Raised by the Selective Synch dialog. Located here because the monitors are here
  84         /// * ShowFilePropertiesEvent: Raised when a shell command requests the display of the file/container properties dialog
  85         ///</remarks>
  86         //TODO: CODE SMELL Why does the shell handle the SelectiveSynchChanges?
  87     [Export(typeof(IShell)), Export(typeof(ShellViewModel))]
  88         public class ShellViewModel : Screen, IStatusNotification, IShell,
  89                 IHandle<Notification>, IHandle<SelectiveSynchChanges>, IHandle<ShowFilePropertiesEvent>
  90         {
  91
  92                 //The Status Checker provides the current synch state
  93                 //TODO: Could we remove the status checker and use events in its place?
  94                 private readonly IStatusChecker _statusChecker;
  95                 private readonly IEventAggregator _events;
  96
  97                 public PithosSettings Settings { get; private set; }
  98
  99
 100                 private readonly ConcurrentDictionary<Uri, PithosMonitor> _monitors = new ConcurrentDictionary<Uri, PithosMonitor>();
 101                 ///<summary>
 102                 /// Dictionary of account monitors, keyed by account
 103                 ///</summary>
 104                 ///<remarks>
 105                 /// One monitor class is created for each account. The Shell needs access to the monitors to execute start/stop/pause commands,
 106                 /// retrieve account and boject info
 107                 ///</remarks>
 108                 // TODO: Does the Shell REALLY need access to the monitors? Could we achieve the same results with a better design?
 109                 // TODO: The monitors should be internal to Pithos.Core, even though exposing them makes coding of the Object and Container windows easier
 110                 public ConcurrentDictionary<Uri, PithosMonitor> Monitors
 111                 {
 112                         get { return _monitors; }
 113                 }
 114
 115
 116                 ///<summary>
 117                 /// The status service is used by Shell extensions to retrieve file status information
 118                 ///</summary>
 119                 //TODO: CODE SMELL! This is the shell! While hosting in the shell makes executing start/stop commands easier, it is still a smell
 120                 private ServiceHost _statusService;
 121
 122                 //Logging in the Pithos client is provided by log4net
 123         private static readonly log4net.ILog Log = log4net.LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
 124
 125             private readonly PollAgent _pollAgent;
 126
 127
 128             private MiniStatusViewModel _miniStatus;
 129
 130             [Import]
 131         public MiniStatusViewModel MiniStatus
 132             {
 133                 get { return _miniStatus; }
 134                 set
 135                 {
 136                     _miniStatus = value;
 137                     _miniStatus.Shell = this;
 138                     _miniStatus.Deactivated += (sender, arg) =>
 139                                                    {
 140                                                        _statusVisible = false;
 141                                                    NotifyOfPropertyChange(()=>MiniStatusCaption);
 142                                                    };
 143                 }
 144             }
 145
 146             ///<summary>
 147                 /// The Shell depends on MEF to provide implementations for windowManager, events, the status checker service and the settings
 148                 ///</summary>
 149                 ///<remarks>
 150                 /// The PithosSettings class encapsulates the app's settings to abstract their storage mechanism (App settings, a database or registry)
 151                 ///</remarks>
 152                 [ImportingConstructor]
 153                 public ShellViewModel(IWindowManager windowManager, IEventAggregator events, IStatusChecker statusChecker, PithosSettings settings,PollAgent pollAgent)
 154                 {
 155                         try
 156                         {
 157
 158                                 _windowManager = windowManager;
 159                                 //CHECK: Caliburn doesn't need explicit command construction
 160                                 //OpenPithosFolderCommand = new PithosCommand(OpenPithosFolder);
 161                                 _statusChecker = statusChecker;
 162                                 //The event subst
 163                                 _events = events;
 164                                 _events.Subscribe(this);
 165
 166                             _pollAgent = pollAgent;
 167                                 Settings = settings;
 168
 169                                 Proxy.SetFromSettings(settings);
 170
 171                 StatusMessage = Settings.Accounts.Count==0
 172                     ? "No Accounts added\r\nPlease add an account"
 173                     : "Starting";
 174
 175                                 _accounts.CollectionChanged += (sender, e) =>
 176                                                                                                    {
 177                                                                                                            NotifyOfPropertyChange(() => OpenFolderCaption);
 178                                                                                                            NotifyOfPropertyChange(() => HasAccounts);
 179                                                                                                    };
 180
 181                 SetVersionMessage();
 182                         }
 183                         catch (Exception exc)
 184                         {
 185                                 Log.Error("Error while starting the ShellViewModel",exc);
 186                                 throw;
 187                         }
 188
 189                 }
 190
 191             private void SetVersionMessage()
 192             {
 193                 Assembly assembly = Assembly.GetExecutingAssembly();
 194                 var fileVersion = FileVersionInfo.GetVersionInfo(assembly.Location);
 195                 VersionMessage = String.Format("Pithos+ {0}", fileVersion.FileVersion);
 196             }
 197
 198         public void OnStatusAction()
 199         {
 200             if (Accounts.Count==0)
 201             {
 202                 ShowPreferences("AccountTab");
 203             }
 204         }
 205             protected override void OnActivate()
 206                 {
 207                         base.OnActivate();
 208
 209             InitializeSparkle();
 210
 211                 //Must delay opening the upgrade window
 212             //to avoid Windows Messages sent by the TaskbarIcon
 213             TaskEx.Delay(5000).ContinueWith(_=>
 214                 Execute.OnUIThread(()=> _sparkle.StartLoop(true,Settings.UpdateForceCheck,Settings.UpdateCheckInterval)));
 215
 216
 217                         StartMonitoring();
 218                 }
 219
 220
 221             private void OnCheckFinished(object sender, bool updaterequired)
 222             {
 223
 224             Log.InfoFormat("Upgrade check finished. Need Upgrade: {0}", updaterequired);
 225             if (_manualUpgradeCheck)
 226             {
 227                 _manualUpgradeCheck = false;
 228                 if (!updaterequired)
 229                     //Sparkle raises events on a background thread
 230                     Execute.OnUIThread(()=>
 231                         ShowBalloonFor(new Notification{Title="Pithos+ is up to date",Message="You have the latest Pithos+ version. No update is required"}));
 232             }
 233             }
 234
 235             private void OnUpgradeDetected(object sender, UpdateDetectedEventArgs e)
 236             {
 237                 Log.InfoFormat("Update detected {0}",e.LatestVersion);
 238             }
 239
 240         public void CheckForUpgrade()
 241         {
 242             ShowBalloonFor(new Notification{Title="Checking for upgrades",Message="Contacting the server to retrieve the latest Pithos+ version."});
 243             _sparkle.StopLoop();
 244             _sparkle.updateDetected -= OnUpgradeDetected;
 245             _sparkle.checkLoopFinished -= OnCheckFinished;
 246             _sparkle.Dispose();
 247
 248             _manualUpgradeCheck = true;
 249             InitializeSparkle();
 250             _sparkle.StartLoop(true,true,Settings.UpdateCheckInterval);
 251         }
 252
 253         private void InitializeSparkle()
 254         {
 255             _sparkle = new Sparkle(Settings.UpdateUrl);
 256             _sparkle.updateDetected += OnUpgradeDetected;
 257             _sparkle.checkLoopFinished += OnCheckFinished;
 258             _sparkle.ShowDiagnosticWindow = Settings.UpdateDiagnostics;
 259         }
 260
 261             private async void StartMonitoring()
 262                 {
 263                         try
 264                         {
 265                 if (Settings.IgnoreCertificateErrors)
 266                 {
 267                     ServicePointManager.ServerCertificateValidationCallback = (sender, certificate, chain, errors) => true;
 268                 }
 269
 270                                 var accounts = Settings.Accounts.Select(MonitorAccount);
 271                                 await TaskEx.WhenAll(accounts);
 272                                 _statusService = StatusService.Start();
 273
 274                         }
 275                         catch (AggregateException exc)
 276                         {
 277                                 exc.Handle(e =>
 278                                 {
 279                                         Log.Error("Error while starting monitoring", e);
 280                                         return true;
 281                                 });
 282                                 throw;
 283                         }
 284                 }
 285
 286                 protected override void OnDeactivate(bool close)
 287                 {
 288                         base.OnDeactivate(close);
 289                         if (close)
 290                         {
 291                                 StatusService.Stop(_statusService);
 292                                 _statusService = null;
 293                         }
 294                 }
 295
 296                 public Task MonitorAccount(AccountSettings account)
 297                 {
 298                         return Task.Factory.StartNew(() =>
 299                         {
 300                                 PithosMonitor monitor;
 301                                 var accountName = account.AccountName;
 302
 303                                 if (Monitors.TryGetValue(account.AccountKey, out monitor))
 304                                 {
 305                                         //If the account is active
 306                     if (account.IsActive)
 307                     {
 308                         //The Api Key may have changed throuth the Preferences dialog
 309                         monitor.ApiKey = account.ApiKey;
 310                                                 Debug.Assert(monitor.StatusNotification == this,"An existing monitor should already have a StatusNotification service object");
 311                         monitor.RootPath = account.RootPath;
 312                         //Start the monitor. It's OK to start an already started monitor,
 313                         //it will just ignore the call
 314                         StartMonitor(monitor).Wait();
 315                     }
 316                     else
 317                     {
 318                         //If the account is inactive
 319                         //Stop and remove the monitor
 320                         RemoveMonitor(account.ServerUrl,accountName);
 321                     }
 322                                         return;
 323                                 }
 324
 325
 326                                 //Create a new monitor/ Can't use MEF here, it would return a single instance for all monitors
 327                                 monitor = new PithosMonitor
 328                                                           {
 329                                                                   UserName = accountName,
 330                                                                   ApiKey = account.ApiKey,
 331                                                                   StatusNotification = this,
 332                                                                   RootPath = account.RootPath
 333                                                           };
 334                                 //PithosMonitor uses MEF so we need to resolve it
 335                                 IoC.BuildUp(monitor);
 336
 337                                 monitor.AuthenticationUrl = account.ServerUrl;
 338
 339                                 Monitors[account.AccountKey] = monitor;
 340
 341                                 if (account.IsActive)
 342                                 {
 343                                         //Don't start a monitor if it doesn't have an account and ApiKey
 344                                         if (String.IsNullOrWhiteSpace(monitor.UserName) ||
 345                                                 String.IsNullOrWhiteSpace(monitor.ApiKey))
 346                                                 return;
 347                                         StartMonitor(monitor);
 348                                 }
 349                         });
 350                 }
 351
 352
 353                 protected override void OnViewLoaded(object view)
 354                 {
 355                         UpdateStatus();
 356                         var window = (Window)view;
 357                         TaskEx.Delay(1000).ContinueWith(t => Execute.OnUIThread(window.Hide));
 358                         base.OnViewLoaded(view);
 359                 }
 360
 361
 362                 #region Status Properties
 363
 364                 private string _statusMessage;
 365                 public string StatusMessage
 366                 {
 367                         get { return _statusMessage; }
 368                         set
 369                         {
 370                                 _statusMessage = value;
 371                                 NotifyOfPropertyChange(() => StatusMessage);
 372                 NotifyOfPropertyChange(() => TooltipMessage);
 373                         }
 374                 }
 375
 376         public string VersionMessage { get; set; }
 377
 378             private string _tooltipMessage;
 379             public string TooltipMessage
 380             {
 381                 get
 382                 {
 383                     return String.Format("{0}\r\n{1}",VersionMessage,StatusMessage);
 384                 }
 385             }
 386
 387             private readonly ObservableConcurrentCollection<AccountInfo> _accounts = new ObservableConcurrentCollection<AccountInfo>();
 388                 public ObservableConcurrentCollection<AccountInfo> Accounts
 389                 {
 390                         get { return _accounts; }
 391                 }
 392
 393                 public bool HasAccounts
 394                 {
 395                         get { return _accounts.Count > 0; }
 396                 }
 397
 398
 399                 public string OpenFolderCaption
 400                 {
 401                         get
 402                         {
 403                                 return (_accounts.Count == 0)
 404                                                 ? "No Accounts Defined"
 405                                                 : "Open Pithos Folder";
 406                         }
 407                 }
 408
 409                 private string _pauseSyncCaption="Pause Synching";
 410                 public string PauseSyncCaption
 411                 {
 412                         get { return _pauseSyncCaption; }
 413                         set
 414                         {
 415                                 _pauseSyncCaption = value;
 416                                 NotifyOfPropertyChange(() => PauseSyncCaption);
 417                         }
 418                 }
 419
 420                 private readonly ObservableConcurrentCollection<FileEntry> _recentFiles = new ObservableConcurrentCollection<FileEntry>();
 421                 public ObservableConcurrentCollection<FileEntry> RecentFiles
 422                 {
 423                         get { return _recentFiles; }
 424                 }
 425
 426
 427                 private string _statusIcon="../Images/Pithos.ico";
 428                 public string StatusIcon
 429                 {
 430                         get { return _statusIcon; }
 431                         set
 432                         {
 433                                 //TODO: Ensure all status icons use the Pithos logo
 434                                 _statusIcon = value;
 435                                 NotifyOfPropertyChange(() => StatusIcon);
 436                         }
 437                 }
 438
 439                 #endregion
 440
 441                 #region Commands
 442
 443         public void ShowPreferences()
 444         {
 445             ShowPreferences(null);
 446         }
 447
 448                 public void ShowPreferences(string currentTab)
 449                 {
 450                         //Settings.Reload();
 451                     var preferences = new PreferencesViewModel(_windowManager, _events, this, Settings,currentTab);
 452                     _windowManager.ShowDialog(preferences);
 453
 454                 }
 455
 456                 public void AboutPithos()
 457                 {
 458                         var about = IoC.Get<AboutViewModel>();
 459                     about.LatestVersion=_sparkle.LatestVersion;
 460                         _windowManager.ShowWindow(about);
 461                 }
 462
 463                 public void SendFeedback()
 464                 {
 465                         var feedBack =  IoC.Get<FeedbackViewModel>();
 466                         _windowManager.ShowWindow(feedBack);
 467                 }
 468
 469                 //public PithosCommand OpenPithosFolderCommand { get; private set; }
 470
 471                 public void OpenPithosFolder()
 472                 {
 473                         var account = Settings.Accounts.FirstOrDefault(acc => acc.IsActive);
 474                         if (account == null)
 475                                 return;
 476                         Process.Start(account.RootPath);
 477                 }
 478
 479                 public void OpenPithosFolder(AccountInfo account)
 480                 {
 481                         Process.Start(account.AccountPath);
 482                 }
 483
 484
 485
 486                 public void GoToSite()
 487                 {
 488                         var site = Properties.Settings.Default.ProductionServer;
 489                         Process.Start(site);
 490                 }
 491
 492
 493                 public void GoToSite(AccountInfo account)
 494                 {
 495                     var uri = account.SiteUri.Replace("http://","https://");
 496                     Process.Start(uri);
 497                 }
 498
 499             private bool _statusVisible;
 500
 501             public string MiniStatusCaption
 502             {
 503                 get
 504                 {
 505                     return  _statusVisible ? "Hide Status Window" : "Show Status Window";
 506                 }
 507             }
 508
 509             public void ShowMiniStatus()
 510         {
 511             if (!_statusVisible)
 512                 _windowManager.ShowWindow(MiniStatus);
 513             else
 514             {
 515                 if (MiniStatus.IsActive)
 516                     MiniStatus.TryClose();
 517             }
 518             _statusVisible=!_statusVisible;
 519
 520                 NotifyOfPropertyChange(()=>MiniStatusCaption);
 521         }
 522
 523             /// <summary>
 524         /// Open an explorer window to the target path's directory
 525         /// and select the file
 526         /// </summary>
 527         /// <param name="entry"></param>
 528         public void GoToFile(FileEntry entry)
 529         {
 530             var fullPath = entry.FullPath;
 531             if (!File.Exists(fullPath) && !Directory.Exists(fullPath))
 532                 return;
 533             Process.Start("explorer.exe","/select, " + fullPath);
 534         }
 535
 536         public void OpenLogPath()
 537         {
 538             var pithosDataPath = PithosSettings.PithosDataPath;
 539
 540             Process.Start(pithosDataPath);
 541         }
 542
 543         public void ShowFileProperties()
 544                 {
 545                         var account = Settings.Accounts.First(acc => acc.IsActive);
 546                         var dir = new DirectoryInfo(account.RootPath + @"\pithos");
 547                         var files=dir.GetFiles();
 548                         var r=new Random();
 549                         var idx=r.Next(0, files.Length);
 550                         ShowFileProperties(files[idx].FullName);
 551                 }
 552
 553                 public void ShowFileProperties(string filePath)
 554                 {
 555                         if (String.IsNullOrWhiteSpace(filePath))
 556                                 throw new ArgumentNullException("filePath");
 557                         if (!File.Exists(filePath) && !Directory.Exists(filePath))
 558                                 throw new ArgumentException(String.Format("Non existent file {0}",filePath),"filePath");
 559                         Contract.EndContractBlock();
 560
 561                         var pair=(from monitor in  Monitors
 562                                                            where filePath.StartsWith(monitor.Value.RootPath, StringComparison.InvariantCultureIgnoreCase)
 563                                                                    select monitor).FirstOrDefault();
 564                         var accountMonitor = pair.Value;
 565
 566                         if (accountMonitor == null)
 567                                 return;
 568
 569                         var infoTask=Task.Factory.StartNew(()=>accountMonitor.GetObjectInfo(filePath));
 570
 571
 572
 573                         var fileProperties = new FilePropertiesViewModel(this, infoTask,filePath);
 574                         _windowManager.ShowWindow(fileProperties);
 575                 }
 576
 577                 public void ShowContainerProperties()
 578                 {
 579                         var account = Settings.Accounts.First(acc => acc.IsActive);
 580                         var dir = new DirectoryInfo(account.RootPath);
 581                         var fullName = (from folder in dir.EnumerateDirectories()
 582                                                         where (folder.Attributes & FileAttributes.Hidden) == 0
 583                                                         select folder.FullName).First();
 584                         ShowContainerProperties(fullName);
 585                 }
 586
 587                 public void ShowContainerProperties(string filePath)
 588                 {
 589                         if (String.IsNullOrWhiteSpace(filePath))
 590                                 throw new ArgumentNullException("filePath");
 591                         if (!Directory.Exists(filePath))
 592                                 throw new ArgumentException(String.Format("Non existent file {0}",filePath),"filePath");
 593                         Contract.EndContractBlock();
 594
 595                         var pair=(from monitor in  Monitors
 596                                                            where filePath.StartsWith(monitor.Value.RootPath, StringComparison.InvariantCultureIgnoreCase)
 597                                                                    select monitor).FirstOrDefault();
 598                         var accountMonitor = pair.Value;
 599                         var info = accountMonitor.GetContainerInfo(filePath);
 600
 601
 602
 603                         var containerProperties = new ContainerPropertiesViewModel(this, info,filePath);
 604                         _windowManager.ShowWindow(containerProperties);
 605                 }
 606
 607                 public void SynchNow()
 608                 {
 609                         _pollAgent.SynchNow();
 610                 }
 611
 612                 public ObjectInfo RefreshObjectInfo(ObjectInfo currentInfo)
 613                 {
 614                         if (currentInfo==null)
 615                                 throw new ArgumentNullException("currentInfo");
 616                         Contract.EndContractBlock();
 617             var monitor = Monitors[currentInfo.AccountKey];
 618                         var newInfo=monitor.CloudClient.GetObjectInfo(currentInfo.Account, currentInfo.Container, currentInfo.Name);
 619                         return newInfo;
 620                 }
 621
 622                 public ContainerInfo RefreshContainerInfo(ContainerInfo container)
 623                 {
 624                         if (container == null)
 625                                 throw new ArgumentNullException("container");
 626                         Contract.EndContractBlock();
 627
 628                         var monitor = Monitors[container.AccountKey];
 629                         var newInfo = monitor.CloudClient.GetContainerInfo(container.Account, container.Name);
 630                         return newInfo;
 631                 }
 632
 633
 634                 public void ToggleSynching()
 635                 {
 636                         bool isPaused=false;
 637                         foreach (var pair in Monitors)
 638                         {
 639                                 var monitor = pair.Value;
 640                                 monitor.Pause = !monitor.Pause;
 641                                 isPaused = monitor.Pause;
 642                         }
 643
 644
 645                         PauseSyncCaption = isPaused ? "Resume syncing" : "Pause syncing";
 646                         var iconKey = isPaused? "TraySyncPaused" : "TrayInSynch";
 647                         StatusIcon = String.Format(@"../Images/{0}.ico", iconKey);
 648                 }
 649
 650                 public void ExitPithos()
 651                 {
 652                         foreach (var pair in Monitors)
 653                         {
 654                                 var monitor = pair.Value;
 655                                 monitor.Stop();
 656                         }
 657
 658                         ((Window)GetView()).Close();
 659                 }
 660                 #endregion
 661
 662
 663                 private readonly Dictionary<PithosStatus, StatusInfo> _iconNames = new List<StatusInfo>
 664                         {
 665                                 new StatusInfo(PithosStatus.InSynch, "All files up to date", "TrayInSynch"),
 666                                 new StatusInfo(PithosStatus.PollSyncing, "Polling Files", "TraySynching"),
 667                 new StatusInfo(PithosStatus.LocalSyncing, "Syncing Files", "TraySynching"),
 668                                 new StatusInfo(PithosStatus.SyncPaused, "Sync Paused", "TraySyncPaused")
 669                         }.ToDictionary(s => s.Status);
 670
 671                 readonly IWindowManager _windowManager;
 672
 673         //private int _syncCount=0;
 674
 675
 676         private PithosStatus _pithosStatus = PithosStatus.Disconnected;
 677
 678         public void SetPithosStatus(PithosStatus status)
 679         {
 680             if (_pithosStatus == PithosStatus.LocalSyncing && status == PithosStatus.PollComplete)
 681                 return;
 682             if (_pithosStatus == PithosStatus.PollSyncing && status == PithosStatus.LocalComplete)
 683                 return;
 684             if (status == PithosStatus.LocalComplete || status == PithosStatus.PollComplete)
 685                 _pithosStatus = PithosStatus.InSynch;
 686             else
 687                 _pithosStatus = status;
 688             UpdateStatus();
 689         }
 690
 691         public void SetPithosStatus(PithosStatus status,string message)
 692         {
 693             StatusMessage = message;
 694             SetPithosStatus(status);
 695         }
 696
 697
 698
 699                 ///<summary>
 700                 /// Updates the visual status indicators of the application depending on status changes, e.g. icon, stat
 701                 ///</summary>
 702                 public void UpdateStatus()
 703                 {
 704
 705                         if (_iconNames.ContainsKey(_pithosStatus))
 706                         {
 707                                 var info = _iconNames[_pithosStatus];
 708                                 StatusIcon = String.Format(@"../Images/{0}.ico", info.IconName);
 709                         }
 710
 711             if (_pithosStatus == PithosStatus.InSynch)
 712                 StatusMessage = "All files up to date";
 713                 }
 714
 715
 716
 717                 private Task StartMonitor(PithosMonitor monitor,int retries=0)
 718                 {
 719                         return Task.Factory.StartNew(() =>
 720                         {
 721                                 using (log4net.ThreadContext.Stacks["Monitor"].Push("Start"))
 722                                 {
 723                                         try
 724                                         {
 725                                                 Log.InfoFormat("Start Monitoring {0}", monitor.UserName);
 726
 727                                                 monitor.Start();
 728                                         }
 729                                         catch (WebException exc)
 730                                         {
 731                                                 if (AbandonRetry(monitor, retries))
 732                                                         return;
 733
 734                                                 HttpStatusCode statusCode =HttpStatusCode.OK;
 735                                                 var response = exc.Response as HttpWebResponse;
 736                                                 if(response!=null)
 737                                                         statusCode = response.StatusCode;
 738
 739                                                 switch (statusCode)
 740                                                 {
 741                                                         case HttpStatusCode.Unauthorized:
 742                                                                 var message = String.Format("API Key Expired for {0}. Starting Renewal",
 743                                                                                                                         monitor.UserName);
 744                                                                 Log.Error(message, exc);
 745                                                         var account = Settings.Accounts.Find(acc => acc.AccountName == monitor.UserName);
 746                                                         account.IsExpired = true;
 747                                 Notify(new ExpirationNotification(account));
 748                                                                 //TryAuthorize(monitor.UserName, retries).Wait();
 749                                                                 break;
 750                                                         case HttpStatusCode.ProxyAuthenticationRequired:
 751                                                                 TryAuthenticateProxy(monitor,retries);
 752                                                                 break;
 753                                                         default:
 754                                                                 TryLater(monitor, exc, retries);
 755                                                                 break;
 756                                                 }
 757                                         }
 758                                         catch (Exception exc)
 759                                         {
 760                                                 if (AbandonRetry(monitor, retries))
 761                                                         return;
 762
 763                                                 TryLater(monitor,exc,retries);
 764                                         }
 765                                 }
 766                         });
 767                 }
 768
 769                 private void TryAuthenticateProxy(PithosMonitor monitor,int retries)
 770                 {
 771                         Execute.OnUIThread(() =>
 772                                                                    {
 773                                                                            var proxyAccount = IoC.Get<ProxyAccountViewModel>();
 774                                                                                 proxyAccount.Settings = Settings;
 775                                                                            if (true != _windowManager.ShowDialog(proxyAccount))
 776                                                                                    return;
 777                                                                            StartMonitor(monitor, retries);
 778                                                                            NotifyOfPropertyChange(() => Accounts);
 779                                                                    });
 780                 }
 781
 782                 private bool AbandonRetry(PithosMonitor monitor, int retries)
 783                 {
 784                         if (retries > 1)
 785                         {
 786                                 var message = String.Format("Monitoring of account {0} has failed too many times. Will not retry",
 787                                                                                         monitor.UserName);
 788                                 _events.Publish(new Notification
 789                                                                         {Title = "Account monitoring failed", Message = message, Level = TraceLevel.Error});
 790                                 return true;
 791                         }
 792                         return false;
 793                 }
 794
 795
 796             private void TryLater(PithosMonitor monitor, Exception exc,int retries)
 797                 {
 798                         var message = String.Format("An exception occured. Can't start monitoring\nWill retry in 10 seconds");
 799                         Task.Factory.StartNewDelayed(10000, () => StartMonitor(monitor,retries+1));
 800                         _events.Publish(new Notification
 801                                                                 {Title = "Error", Message = message, Level = TraceLevel.Error});
 802                         Log.Error(message, exc);
 803                 }
 804
 805
 806                 public void NotifyChange(string status, TraceLevel level=TraceLevel.Info)
 807                 {
 808                         StatusMessage = status;
 809
 810                         _events.Publish(new Notification { Title = "Pithos+", Message = status, Level = level });
 811                 }
 812
 813                 public void NotifyChangedFile(string filePath)
 814                 {
 815             if (RecentFiles.Any(e => e.FullPath == filePath))
 816                 return;
 817
 818                         IProducerConsumerCollection<FileEntry> files=RecentFiles;
 819                         FileEntry popped;
 820                         while (files.Count > 5)
 821                                 files.TryTake(out popped);
 822             var entry = new FileEntry { FullPath = filePath };
 823                         files.TryAdd(entry);
 824                 }
 825
 826                 public void NotifyAccount(AccountInfo account)
 827                 {
 828                         if (account== null)
 829                                 return;
 830                         //TODO: What happens to an existing account whose Token has changed?
 831                         account.SiteUri= String.Format("{0}/ui/?token={1}&user={2}",
 832                                 account.SiteUri, Uri.EscapeDataString(account.Token),
 833                                 Uri.EscapeDataString(account.UserName));
 834
 835                         if (!Accounts.Any(item => item.UserName == account.UserName && item.SiteUri == account.SiteUri))
 836                                 Accounts.TryAdd(account);
 837
 838                 }
 839
 840                 public void NotifyConflicts(IEnumerable<FileSystemInfo> conflictFiles, string message)
 841                 {
 842                         if (conflictFiles == null)
 843                                 return;
 844                     //Convert to list to avoid multiple iterations
 845             var files = conflictFiles.ToList();
 846                         if (files.Count==0)
 847                                 return;
 848
 849                         UpdateStatus();
 850                         //TODO: Create a more specific message. For now, just show a warning
 851                         NotifyForFiles(files,message,TraceLevel.Warning);
 852
 853                 }
 854
 855                 public void NotifyForFiles(IEnumerable<FileSystemInfo> files, string message,TraceLevel level=TraceLevel.Info)
 856                 {
 857                         if (files == null)
 858                                 return;
 859                         if (!files.Any())
 860                                 return;
 861
 862                         StatusMessage = message;
 863
 864                         _events.Publish(new Notification { Title = "Pithos+", Message = message, Level = level});
 865                 }
 866
 867                 public void Notify(Notification notification)
 868                 {
 869                         _events.Publish(notification);
 870                 }
 871
 872
 873                 public void RemoveMonitor(string serverUrl,string accountName)
 874                 {
 875                         if (String.IsNullOrWhiteSpace(accountName))
 876                                 return;
 877
 878                         var accountInfo=_accounts.FirstOrDefault(account => account.UserName == accountName && account.StorageUri.ToString().StartsWith(serverUrl));
 879             if (accountInfo != null)
 880             {
 881                 _accounts.TryRemove(accountInfo);
 882                 _pollAgent.RemoveAccount(accountInfo);
 883             }
 884
 885             var accountKey = new Uri(new Uri(serverUrl),accountName);
 886                     PithosMonitor monitor;
 887                         if (Monitors.TryRemove(accountKey, out monitor))
 888                         {
 889                                 monitor.Stop();
 890                 //TODO: Also remove any pending actions for this account
 891                 //from the network queue
 892                         }
 893                 }
 894
 895                 public void RefreshOverlays()
 896                 {
 897                         foreach (var pair in Monitors)
 898                         {
 899                                 var monitor = pair.Value;
 900
 901                                 var path = monitor.RootPath;
 902
 903                                 if (String.IsNullOrWhiteSpace(path))
 904                                         continue;
 905
 906                                 if (!Directory.Exists(path) && !File.Exists(path))
 907                                         continue;
 908
 909                                 IntPtr pathPointer = Marshal.StringToCoTaskMemAuto(path);
 910
 911                                 try
 912                                 {
 913                                         NativeMethods.SHChangeNotify(HChangeNotifyEventID.SHCNE_UPDATEITEM,
 914                                                                                                  HChangeNotifyFlags.SHCNF_PATHW | HChangeNotifyFlags.SHCNF_FLUSHNOWAIT,
 915                                                                                                  pathPointer, IntPtr.Zero);
 916                                 }
 917                                 finally
 918                                 {
 919                                         Marshal.FreeHGlobal(pathPointer);
 920                                 }
 921                         }
 922                 }
 923
 924                 #region Event Handlers
 925
 926                 public void Handle(SelectiveSynchChanges message)
 927                 {
 928                         PithosMonitor monitor;
 929                         if (Monitors.TryGetValue(message.Account.AccountKey, out monitor))
 930                         {
 931                                 monitor.SetSelectivePaths(message.Uris,message.Added,message.Removed);
 932
 933                         }
 934
 935                 }
 936
 937
 938                 private bool _pollStarted;
 939             private Sparkle _sparkle;
 940             private bool _manualUpgradeCheck;
 941
 942             //SMELL: Doing so much work for notifications in the shell is wrong
 943                 //The notifications should be moved to their own view/viewmodel pair
 944                 //and different templates should be used for different message types
 945                 //This will also allow the addition of extra functionality, eg. actions
 946                 //
 947                 public void Handle(Notification notification)
 948                 {
 949                         UpdateStatus();
 950
 951                         if (!Settings.ShowDesktopNotifications)
 952                                 return;
 953
 954                         if (notification is PollNotification)
 955                         {
 956                                 _pollStarted = true;
 957                                 return;
 958                         }
 959                         if (notification is CloudNotification)
 960                         {
 961                                 if (!_pollStarted)
 962                                         return;
 963                                 _pollStarted= false;
 964                                 notification.Title = "Pithos+";
 965                                 notification.Message = "Start Synchronisation";
 966                         }
 967
 968                     var deleteNotification = notification as CloudDeleteNotification;
 969             if (deleteNotification != null)
 970             {
 971                 StatusMessage = String.Format("Deleted {0}", deleteNotification.Data.Name);
 972                 return;
 973             }
 974
 975                     var progress = notification as ProgressNotification;
 976
 977
 978             if (progress != null)
 979                     {
 980                         StatusMessage = String.Format("{0} {1:p2} of {2} - {3}",
 981                                               progress.Action,
 982                                                       progress.Block/(double)progress.TotalBlocks,
 983                                                       progress.FileSize.ToByteSize(),
 984                                                       progress.FileName);
 985                         return;
 986                     }
 987
 988                     var info = notification as StatusNotification;
 989             if (info != null)
 990             {
 991                 StatusMessage = info.Title;
 992                 return;
 993             }
 994                         if (String.IsNullOrWhiteSpace(notification.Message) && String.IsNullOrWhiteSpace(notification.Title))
 995                                 return;
 996
 997             if (notification.Level <= TraceLevel.Warning)
 998                             ShowBalloonFor(notification);
 999                 }
1000
1001             private void ShowBalloonFor(Notification notification)
1002             {
1003             Contract.Requires(notification!=null);
1004
1005             if (!Settings.ShowDesktopNotifications)
1006                 return;
1007
1008             BalloonIcon icon;
1009                 switch (notification.Level)
1010                 {
1011                 case TraceLevel.Verbose:
1012                         return;
1013                     case TraceLevel.Info:
1014                         icon = BalloonIcon.Info;
1015                         break;
1016                 case TraceLevel.Error:
1017                     icon = BalloonIcon.Error;
1018                     break;
1019                 case TraceLevel.Warning:
1020                         icon = BalloonIcon.Warning;
1021                         break;
1022                     default:
1023                         return;
1024                 }
1025
1026                 var tv = (ShellView) GetView();
1027                 System.Action clickAction = null;
1028                 if (notification is ExpirationNotification)
1029                 {
1030                     clickAction = () => ShowPreferences("AccountTab");
1031                 }
1032                 var balloon = new PithosBalloon
1033                                   {
1034                                       Title = notification.Title,
1035                                       Message = notification.Message,
1036                                       Icon = icon,
1037                                       ClickAction = clickAction
1038                                   };
1039                 tv.TaskbarView.ShowCustomBalloon(balloon, PopupAnimation.Fade, 4000);
1040             }
1041
1042             #endregion
1043
1044                 public void Handle(ShowFilePropertiesEvent message)
1045                 {
1046                         if (message == null)
1047                                 throw new ArgumentNullException("message");
1048                         if (String.IsNullOrWhiteSpace(message.FileName) )
1049                                 throw new ArgumentException("message");
1050                         Contract.EndContractBlock();
1051
1052                         var fileName = message.FileName;
1053                         //TODO: Display file properties for non-container folders
1054                         if (File.Exists(fileName))
1055                                 //Retrieve the full name with exact casing. Pithos names are case sensitive
1056                                 ShowFileProperties(FileInfoExtensions.GetProperFilePathCapitalization(fileName));
1057                         else if (Directory.Exists(fileName))
1058                                 //Retrieve the full name with exact casing. Pithos names are case sensitive
1059                         {
1060                                 var path = FileInfoExtensions.GetProperDirectoryCapitalization(fileName);
1061                                 if (IsContainer(path))
1062                                         ShowContainerProperties(path);
1063                                 else
1064                                         ShowFileProperties(path);
1065                         }
1066                 }
1067
1068                 private bool IsContainer(string path)
1069                 {
1070                         var matchingFolders = from account in _accounts
1071                                                                   from rootFolder in Directory.GetDirectories(account.AccountPath)
1072                                                                   where rootFolder.Equals(path, StringComparison.InvariantCultureIgnoreCase)
1073                                                                   select rootFolder;
1074                         return matchingFolders.Any();
1075                 }
1076
1077                 public FileStatus GetFileStatus(string localFileName)
1078                 {
1079                         if (String.IsNullOrWhiteSpace(localFileName))
1080                                 throw new ArgumentNullException("localFileName");
1081                         Contract.EndContractBlock();
1082
1083                         var statusKeeper = IoC.Get<IStatusKeeper>();
1084                         var status=statusKeeper.GetFileStatus(localFileName);
1085                         return status;
1086                 }
1087
1088             public void RemoveAccountFromDatabase(AccountSettings account)
1089             {
1090             var statusKeeper = IoC.Get<IStatusKeeper>();
1091             statusKeeper.ClearFolderStatus(account.RootPath);
1092             }
1093         }
1094 }