root / trunk / Pithos.Client.WPF / ShellViewModel.cs @ 0bd56b7c
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using System.Collections.Concurrent; |
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using System.ComponentModel.Composition; |
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using System.Diagnostics; |
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using System.Diagnostics.Contracts; |
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using System.IO; |
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using System.Net; |
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using System.Runtime.InteropServices; |
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using System.ServiceModel; |
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using System.ServiceModel.Description; |
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using System.Threading.Tasks; |
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using System.Windows; |
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using Caliburn.Micro; |
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using Hardcodet.Wpf.TaskbarNotification; |
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using Pithos.Client.WPF.Configuration; |
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using Pithos.Client.WPF.Properties; |
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using Pithos.Client.WPF.SelectiveSynch; |
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using Pithos.Core; |
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using Pithos.Interfaces; |
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using System; |
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using System.Collections.Generic; |
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using System.Linq; |
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using System.Text; |
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using Pithos.Network; |
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using StatusService = Pithos.Client.WPF.Services.StatusService; |
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|
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namespace Pithos.Client.WPF { |
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using System.ComponentModel.Composition; |
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|
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[Export(typeof(IShell))] |
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public class ShellViewModel : ViewAware, IStatusNotification, IShell, |
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IHandle<Notification>, IHandle<SelectiveSynchChanges> |
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{ |
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|
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private IStatusChecker _statusChecker; |
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private IEventAggregator _events; |
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|
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public PithosSettings Settings { get; private set; } |
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|
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public IScreen Parent { get; set; } |
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|
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|
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private Dictionary<string, PithosMonitor> _monitors = new Dictionary<string, PithosMonitor>(); |
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public Dictionary<string, PithosMonitor> Monitors |
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{ |
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get { return _monitors; } |
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} |
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|
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private ServiceHost _statusService { get; set; } |
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|
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private static readonly log4net.ILog Log = log4net.LogManager.GetLogger("Pithos"); |
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|
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[ImportingConstructor] |
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public ShellViewModel(IWindowManager windowManager, IEventAggregator events, IStatusChecker statusChecker, PithosSettings settings) |
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{ |
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_windowManager = windowManager; |
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OpenPithosFolderCommand = new PithosCommand(OpenPithosFolder); |
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_statusChecker = statusChecker; |
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_events = events; |
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_events.Subscribe(this); |
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|
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Settings = settings; |
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|
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StatusMessage = "In Synch"; |
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|
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foreach (var account in settings.Accounts) |
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{ |
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|
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MonitorAccount(account); |
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} |
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|
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StartStatusService(); |
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} |
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|
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|
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|
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public void MonitorAccount(AccountSettings account) |
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{ |
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PithosMonitor monitor = null; |
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var accountName = account.AccountName; |
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|
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if (_monitors.TryGetValue(accountName,out monitor)) |
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{ |
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//If the account is active |
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if (account.IsActive) |
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//Start the monitor. It's OK to start an already started monitor, |
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//it will just ignore the call |
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monitor.Start(); |
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else |
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{ |
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//If the account is inactive |
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//Stop and remove the monitor |
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RemoveMonitor(accountName); |
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} |
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return; |
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} |
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|
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//PithosMonitor uses MEF so we need to resolve it |
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monitor = new PithosMonitor |
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{ |
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UserName = accountName, |
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ApiKey = account.ApiKey, |
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UsePithos = account.UsePithos, |
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StatusNotification = this, |
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RootPath=account.RootPath |
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}; |
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IoC.BuildUp(monitor); |
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|
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var appSettings = Properties.Settings.Default; |
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monitor.AuthenticationUrl = account.UsePithos |
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? appSettings.PithosAuthenticationUrl |
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: appSettings.CloudfilesAuthenticationUrl; |
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|
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_monitors[accountName] = monitor; |
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|
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if (account.IsActive) |
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{ |
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//Don't start a monitor if it doesn't have an account and ApiKey |
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if (String.IsNullOrWhiteSpace(monitor.UserName) || String.IsNullOrWhiteSpace(monitor.ApiKey)) |
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return; |
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StartMonitor(monitor); |
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} |
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} |
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|
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|
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protected override void OnViewLoaded(object view) |
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{ |
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var window = (Window)view; |
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window.Hide(); |
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UpdateStatus(); |
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base.OnViewLoaded(view); |
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} |
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|
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|
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#region Status Properties |
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|
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private string _statusMessage; |
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public string StatusMessage |
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{ |
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get { return _statusMessage; } |
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set |
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{ |
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_statusMessage = value; |
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NotifyOfPropertyChange(() => StatusMessage); |
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} |
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} |
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|
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private ObservableConcurrentCollection<AccountInfo> _accounts = new ObservableConcurrentCollection<AccountInfo>(); |
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public ObservableConcurrentCollection<AccountInfo> Accounts |
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{ |
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get { return _accounts; } |
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} |
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|
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|
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private string _pauseSyncCaption="Pause Syncing"; |
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public string PauseSyncCaption |
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{ |
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get { return _pauseSyncCaption; } |
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set |
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{ |
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_pauseSyncCaption = value; |
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NotifyOfPropertyChange(() => PauseSyncCaption); |
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} |
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} |
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|
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private readonly ObservableConcurrentCollection<FileEntry> _recentFiles = new ObservableConcurrentCollection<FileEntry>(); |
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public ObservableConcurrentCollection<FileEntry> RecentFiles |
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{ |
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get { return _recentFiles; } |
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} |
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|
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|
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private string _statusIcon="Images/Tray.ico"; |
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public string StatusIcon |
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{ |
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get { return _statusIcon; } |
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set |
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{ |
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_statusIcon = value; |
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NotifyOfPropertyChange(() => StatusIcon); |
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} |
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} |
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|
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#endregion |
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|
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#region Commands |
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|
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public void ShowPreferences() |
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{ |
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Settings.Reload(); |
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var preferences = new PreferencesViewModel(_windowManager,_events, this,Settings); |
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_windowManager.ShowDialog(preferences); |
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|
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} |
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|
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|
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public PithosCommand OpenPithosFolderCommand { get; private set; } |
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|
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public void OpenPithosFolder() |
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{ |
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Process.Start(Settings.PithosPath); |
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} |
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|
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public void GoToSite() |
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{ |
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|
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} |
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|
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public void GoToSite(AccountInfo account) |
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{ |
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var site = String.Format("{0}/ui/?token={1}&user={2}", |
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Properties.Settings.Default.PithosSite,account.Token, |
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account.UserName); |
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Process.Start(site); |
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} |
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|
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|
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public void ToggleSynching() |
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{ |
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bool isPaused=false; |
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foreach (var pair in Monitors) |
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{ |
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var monitor = pair.Value; |
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monitor.Pause = !monitor.Pause; |
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isPaused = monitor.Pause; |
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} |
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|
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PauseSyncCaption = isPaused ? "Resume syncing" : "Pause syncing"; |
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var iconKey = isPaused? "TraySyncPaused" : "TrayInSynch"; |
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StatusIcon = String.Format(@"Images/{0}.ico", iconKey); |
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} |
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|
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public void ExitPithos() |
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{ |
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foreach (var pair in Monitors) |
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{ |
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var monitor = pair.Value; |
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monitor.Stop(); |
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} |
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|
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((Window)GetView()).Close(); |
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} |
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#endregion |
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|
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|
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private Dictionary<PithosStatus, StatusInfo> iconNames = new List<StatusInfo> |
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{ |
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new StatusInfo(PithosStatus.InSynch, "All files up to date", "TrayInSynch"), |
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new StatusInfo(PithosStatus.Syncing, "Syncing Files", "TraySynching"), |
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new StatusInfo(PithosStatus.SyncPaused, "Sync Paused", "TraySyncPaused") |
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}.ToDictionary(s => s.Status); |
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|
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readonly IWindowManager _windowManager; |
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|
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|
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public void UpdateStatus() |
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{ |
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var pithosStatus = _statusChecker.GetPithosStatus(); |
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|
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if (iconNames.ContainsKey(pithosStatus)) |
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{ |
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var info = iconNames[pithosStatus]; |
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StatusIcon = String.Format(@"Images/{0}.ico", info.IconName); |
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StatusMessage = String.Format("Pithos 1.0\r\n{0}", info.StatusText); |
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} |
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|
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var tv=this.GetView(); |
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_events.Publish(new Notification { Title = "Start", Message = "Start Monitoring", Level = TraceLevel.Info}); |
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} |
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|
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|
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|
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private Task StartMonitor(PithosMonitor monitor,int retries=0) |
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{ |
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return Task.Factory.StartNew(() => |
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{ |
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using (log4net.ThreadContext.Stacks["Monitor"].Push("Start")) |
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{ |
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try |
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{ |
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Log.InfoFormat("Start Monitoring {0}", monitor.UserName); |
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|
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monitor.Start(); |
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} |
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catch (WebException exc) |
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{ |
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if (AbandonRetry(monitor, retries)) |
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return; |
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|
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if (IsUnauthorized(exc)) |
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{ |
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var message = String.Format("API Key Expired for {0}. Starting Renewal",monitor.UserName); |
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Log.Error(message,exc); |
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TryAuthorize(monitor,retries); |
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} |
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else |
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{ |
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TryLater(monitor, exc,retries); |
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} |
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} |
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catch (Exception exc) |
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{ |
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if (AbandonRetry(monitor, retries)) |
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return; |
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|
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TryLater(monitor,exc,retries); |
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} |
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} |
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}); |
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} |
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|
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private bool AbandonRetry(PithosMonitor monitor, int retries) |
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{ |
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if (retries > 1) |
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{ |
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var message = String.Format("Monitoring of account {0} has failed too many times. Will not retry", |
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monitor.UserName); |
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_events.Publish(new Notification |
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{Title = "Account monitoring failed", Message = message, Level = TraceLevel.Error}); |
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return true; |
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} |
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return false; |
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} |
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|
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|
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private Task TryAuthorize(PithosMonitor monitor,int retries) |
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{ |
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_events.Publish(new Notification { Title = "Authorization failed", Message = "Your API Key has probably expired. You will be directed to a page where you can renew it", Level = TraceLevel.Error }); |
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|
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var authorize= PithosAccount.RetrieveCredentialsAsync(Settings.PithosSite); |
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|
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return authorize.ContinueWith(t => |
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{ |
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if (t.IsFaulted) |
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{ |
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string message = String.Format("API Key retrieval for {0} failed", monitor.UserName); |
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Log.Error(message,t.Exception.InnerException); |
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_events.Publish(new Notification { Title = "Authorization failed", Message = message, Level = TraceLevel.Error }); |
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return; |
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} |
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var credentials = t.Result; |
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var account =Settings.Accounts.FirstOrDefault(act => act.AccountName == credentials.UserName); |
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account.ApiKey = credentials.Password; |
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monitor.ApiKey = credentials.Password; |
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Settings.Save(); |
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Task.Factory.StartNewDelayed(10000, () => StartMonitor(monitor,retries+1)); |
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}); |
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} |
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|
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private static bool IsUnauthorized(WebException exc) |
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{ |
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if (exc==null) |
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throw new ArgumentNullException("exc"); |
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Contract.EndContractBlock(); |
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|
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var response = exc.Response as HttpWebResponse; |
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if (response == null) |
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return false; |
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return (response.StatusCode == HttpStatusCode.Unauthorized); |
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} |
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|
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private void TryLater(PithosMonitor monitor, Exception exc,int retries) |
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{ |
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var message = String.Format("An exception occured. Can't start monitoring\nWill retry in 10 seconds"); |
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Task.Factory.StartNewDelayed(10000, () => StartMonitor(monitor,retries+1)); |
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_events.Publish(new Notification |
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{Title = "Error", Message = message, Level = TraceLevel.Error}); |
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Log.Error(message, exc); |
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} |
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|
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|
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public void NotifyChange(string status, TraceLevel level=TraceLevel.Info) |
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{ |
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this.StatusMessage = status; |
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|
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_events.Publish(new Notification { Title = "Pithos", Message = status, Level = level }); |
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} |
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|
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public void NotifyChangedFile(string filePath) |
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{ |
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var entry = new FileEntry {FullPath=filePath}; |
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IProducerConsumerCollection<FileEntry> files=this.RecentFiles; |
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FileEntry popped; |
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while (files.Count > 5) |
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files.TryTake(out popped); |
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files.TryAdd(entry); |
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} |
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|
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public void NotifyAccount(AccountInfo account) |
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{ |
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if (account== null) |
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return; |
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|
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account.SiteUri= String.Format("{0}/ui/?token={1}&user={2}", |
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Properties.Settings.Default.PithosSite, account.Token, |
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account.UserName); |
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|
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IProducerConsumerCollection<AccountInfo> accounts = Accounts; |
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for (var i = 0; i < _accounts.Count; i++) |
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{ |
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AccountInfo item; |
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if (accounts.TryTake(out item)) |
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{ |
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if (item.UserName!=account.UserName) |
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{ |
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accounts.TryAdd(item); |
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} |
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} |
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} |
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|
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accounts.TryAdd(account); |
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} |
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|
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|
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public void RemoveMonitor(string accountName) |
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{ |
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if (String.IsNullOrWhiteSpace(accountName)) |
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return; |
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|
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PithosMonitor monitor; |
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if (Monitors.TryGetValue(accountName, out monitor)) |
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{ |
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Monitors.Remove(accountName); |
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monitor.Stop(); |
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} |
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} |
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|
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public void RefreshOverlays() |
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{ |
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foreach (var pair in Monitors) |
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{ |
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var monitor = pair.Value; |
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|
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var path = monitor.RootPath; |
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|
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if (String.IsNullOrWhiteSpace(path)) |
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continue; |
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|
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if (!Directory.Exists(path) && !File.Exists(path)) |
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continue; |
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|
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IntPtr pathPointer = Marshal.StringToCoTaskMemAuto(path); |
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|
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try |
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{ |
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NativeMethods.SHChangeNotify(HChangeNotifyEventID.SHCNE_UPDATEITEM, |
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HChangeNotifyFlags.SHCNF_PATHW | HChangeNotifyFlags.SHCNF_FLUSHNOWAIT, |
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pathPointer, IntPtr.Zero); |
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} |
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finally |
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{ |
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Marshal.FreeHGlobal(pathPointer); |
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} |
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} |
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} |
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|
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private void StartStatusService() |
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{ |
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// Create a ServiceHost for the CalculatorService type and provide the base address. |
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var baseAddress = new Uri("net.pipe://localhost/pithos"); |
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_statusService = new ServiceHost(typeof(StatusService), baseAddress); |
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|
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var binding = new NetNamedPipeBinding(NetNamedPipeSecurityMode.None); |
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|
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_statusService.AddServiceEndpoint(typeof(IStatusService), binding, "net.pipe://localhost/pithos/statuscache"); |
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_statusService.AddServiceEndpoint(typeof(ISettingsService), binding, "net.pipe://localhost/pithos/settings"); |
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|
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|
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//// Add a mex endpoint |
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var smb = new ServiceMetadataBehavior |
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{ |
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HttpGetEnabled = true, |
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HttpGetUrl = new Uri("http://localhost:30000/pithos/mex") |
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}; |
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_statusService.Description.Behaviors.Add(smb); |
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|
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|
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_statusService.Open(); |
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} |
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|
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private void StopStatusService() |
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{ |
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if (_statusService == null) |
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return; |
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|
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if (_statusService.State == CommunicationState.Faulted) |
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_statusService.Abort(); |
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else if (_statusService.State != CommunicationState.Closed) |
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_statusService.Close(); |
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_statusService = null; |
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|
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} |
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#region Event Handlers |
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|
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public void Handle(SelectiveSynchChanges message) |
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{ |
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var accountName = message.Account.AccountName; |
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PithosMonitor monitor; |
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if (_monitors.TryGetValue(accountName, out monitor)) |
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{ |
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monitor.AddSelectivePaths(message.Added); |
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monitor.RemoveSelectivePaths(message.Removed); |
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|
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} |
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|
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} |
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|
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|
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public void Handle(Notification notification) |
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{ |
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if (!Settings.ShowDesktopNotifications) |
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return; |
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BalloonIcon icon = BalloonIcon.None; |
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switch (notification.Level) |
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{ |
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case TraceLevel.Error: |
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icon = BalloonIcon.Error; |
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break; |
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case TraceLevel.Info: |
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case TraceLevel.Verbose: |
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icon = BalloonIcon.Info; |
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break; |
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case TraceLevel.Warning: |
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icon = BalloonIcon.Warning; |
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break; |
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default: |
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icon = BalloonIcon.None; |
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break; |
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} |
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|
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var tv = (ShellView)this.GetView(); |
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tv.TaskbarView.ShowBalloonTip(notification.Title, notification.Message, icon); |
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} |
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#endregion |
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} |
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} |