public MainPageViewModel(IServiceProvider serviceProvider, AppViewModel appViewModel)
: base(serviceProvider, appViewModel)
{
m_connectionInfoProperty = CreateDictionaryProperty(() => ConnectionInfo, () => null);
m_connectionInfoTaskStatusProperty = CreateDictionaryProperty(() => ConnectionInfoTaskStatus, () => TaskStatus.Created);
m_dhcpInfoProperty = CreateDictionaryProperty(() => DhcpInfo, () => null);
m_dhcpInfoTaskStatusProperty = CreateDictionaryProperty(() => DhcpInfoTaskStatus, () => TaskStatus.Created);
m_externalAddressProperty = CreateDictionaryProperty(() => ExternalAddress, () => null);
m_externalAddressTaskStatusProperty = CreateDictionaryProperty(() => ExternalAddressTaskStatus, () => TaskStatus.Created);
m_statusProperty = CreateDictionaryProperty(() => Status, () => String.Empty);
m_progressPercentProperty = CreateDictionaryProperty(() => ProgressPercent, () => 0.0d);
m_isScanInProgressProperty = CreateDictionaryProperty(() => IsScanInProgress, () => false);
m_customSelectionCommandsProperty = CreateDictionaryProperty(() => CustomSelectionCommands, () => new ObservableCollection <UICommand>());
m_startAddressValueProperty = CreateSettingsProperty(V1SettingsConstants.StartAddressValueKey, () => StartAddressValue, () => 0u, () => { UpdateActionBarControls(); });
m_isStartAddressValidProperty = CreateDictionaryProperty(() => IsStartAddressValid, () => false);
m_endAddressValueProperty = CreateSettingsProperty(V1SettingsConstants.EndAddressValueKey, () => EndAddressValue, () => 0u, () => { UpdateActionBarControls(); });
m_isEndAddressValidProperty = CreateDictionaryProperty(() => IsEndAddressValid, () => false);
var hostInfoService = ServiceProvider.GetService <IHostInfoService>();
var hostInfo = hostInfoService.GetCurrentHostInfo();
if (hostInfo == null)
{
Status = Strings.Status_GetHostInfoFailed;
}
else
{
var connectionInfoTask = RunGetConnectionInfoAsync(hostInfo);
var dhcpInfoTask = RunGetDhcpInfoAsync(hostInfo);
var externalAddressTask = RunGetExternalAddressAsync();
Task.Factory.ContinueWhenAll(new[] { connectionInfoTask, dhcpInfoTask }, t =>
{
if (ConnectionInfo != null)
{
if (DhcpInfo != null && DhcpInfo.DnsServerAddress != null)
{
m_dnsResolver = new UdpDnsResolver(
new DnsResolverOptions(),
new DatagramSocketFactory(),
new IPEndpoint(DhcpInfo.DnsServerAddress, Constants.DefaultDnsPort));
}
SetAddressValues(ConnectionInfo.Network);
IsScanInProgress = false;
m_isScanCommandEnabled = true;
m_scanCommand.Refresh();
m_isCancelScanCommandEnabled = false;
m_cancelScanCommand.Refresh();
}
},
CancellationToken.None,
TaskContinuationOptions.None,
TaskScheduler.FromCurrentSynchronizationContext());
}
m_scanCommand = new DelegateCommand(async() =>
{
var scanStopwatch = new Stopwatch();
scanStopwatch.Start();
m_tokenSource = new CancellationTokenSource();
AvailableServices.Clear();
IsScanInProgress = true;
m_isScanCommandEnabled = false;
m_scanCommand.Refresh();
m_isCancelScanCommandEnabled = true;
m_cancelScanCommand.Refresh();
Status = Strings.Status_ScanStarted;
var selectedAddresses = new IPAddressRange(StartAddressValue, EndAddressValue);
var networkServices = await GetNetworkServicesAsync();
var index = 0;
var progress = (IProgress <ScanNetworkBatch>) new Progress <ScanNetworkBatch>(batch =>
{
foreach (var result in batch.Results)
{
if (result.IsAvailable)
{
AvailableServices.Add(result);
}
}
index += batch.Results.Count;
ProgressPercent = 100.0d * index / (selectedAddresses.Count * networkServices.Length);
});
var task = Task.Factory.StartNew(
arg => { Scanner.ScanNetwork(m_tokenSource.Token, m_dnsResolver, selectedAddresses, networkServices, progress); },
m_tokenSource.Token,
TaskCreationOptions.None);
var t1 = task.ContinueWith(t =>
{
IsScanInProgress = false;
m_isScanCommandEnabled = true;
m_scanCommand.Refresh();
m_isCancelScanCommandEnabled = false;
m_cancelScanCommand.Refresh();
var isCancelled = m_tokenSource.Token.IsCancellationRequested;
if (isCancelled)
{
Status = Strings.Status_ScanCancelled;
ProgressPercent = 0.0d;
}
else
{
scanStopwatch.Stop();
var timeSpan = scanStopwatch.Elapsed;
Status = Strings.Format_Status_ScanCompleted(timeSpan);
ProgressPercent = 100.0d;
}
m_tokenSource.Dispose();
},
CancellationToken.None,
TaskContinuationOptions.None,
TaskScheduler.FromCurrentSynchronizationContext());
},
() => m_isScanCommandEnabled);
m_cancelScanCommand = new DelegateCommand(() =>
{
m_isCancelScanCommandEnabled = false;
m_cancelScanCommand.Refresh();
m_tokenSource.Cancel();
},
() => m_isCancelScanCommandEnabled);
m_showServicesCommand = new DelegateCommand(() =>
{
AppViewModel.NavigateToServicesPage();
});
m_launchUriCommand = new DelegateCommand <IPEndpoint>(endpoint =>
{
AppViewModel.NavigateToBrowserPage(endpoint);
});
}
public void Test_IQUERY_UDP()
{
var sendToInvoked = false;
var receiveInvoked = false;
var disposeInvoked = false;
var datagramSocketFactory = new MockDatagramSocketFactory(
(data, endpoint) =>
{
Assert.IsNotNull(data);
data.ShouldEqual(ExpectedSendData);
Assert.AreEqual("192.168.11.1", endpoint.Address.ToString());
Assert.AreEqual((ushort)53, endpoint.Port);
Assert.IsFalse(sendToInvoked);
Assert.IsFalse(receiveInvoked);
Assert.IsFalse(disposeInvoked);
sendToInvoked = true;
},
buffer =>
{
Assert.IsNotNull(buffer);
Assert.AreEqual(512, buffer.Length);
Assert.IsTrue(sendToInvoked);
Assert.IsFalse(receiveInvoked);
Assert.IsFalse(disposeInvoked);
Array.Copy(ReceivedData, buffer, ReceivedData.Length);
var result = ReceivedData.Length;
receiveInvoked = true;
return(result);
},
() =>
{
Assert.IsTrue(sendToInvoked);
Assert.IsTrue(receiveInvoked);
Assert.IsFalse(disposeInvoked);
disposeInvoked = true;
});
var options = new DnsResolverOptions
{
Timeout = 1000,
RetryCount = 3,
Recursion = true,
UseCache = true
};
var resolver = new UdpDnsResolver(
options,
datagramSocketFactory,
new IPEndpoint(IPAddress.Parse("192.168.11.1"), 53), new Random(0));
var response = resolver.Query("167.11.168.192.in-addr.arpa", QType.PTR, QClass.IN);
Assert.AreEqual(0, response.Error.Length);
Assert.AreEqual(1, response.header.ANCOUNT);
Assert.AreEqual(1, response.Answers.Count);
var answerRR = response.Answers.First();
Assert.AreEqual("167.11.168.192.in-addr.arpa.", answerRR.NAME);
Assert.AreEqual(0u, answerRR.TTL);
Assert.AreEqual(Class.IN, answerRR.Class);
Assert.AreEqual(Lanscan.Networking.Dns.RecordType.PTR, answerRR.Type);
Assert.IsInstanceOfType(answerRR.RECORD, typeof(PTRRecord));
var recordPtr = (PTRRecord)answerRR.RECORD;
Assert.AreEqual("alpha.example.com.", recordPtr.PTRDNAME);
Assert.IsTrue(sendToInvoked);
Assert.IsTrue(receiveInvoked);
Assert.IsTrue(disposeInvoked);
}
