/// <summary>
/// Handles before save event for <see cref="SubscriberUserControl"/>.
/// </summary>
/// <param name="sender">Source of the event.</param>
/// <param name="e">Cancel event arguments.</param>
private void SubscriberUserControl_BeforeSave(object sender, CancelEventArgs e)
{
try
{
string sharedSecret = m_dataContext.CurrentItem.SharedSecret;
WindowsServiceClient windowsServiceClient;
ClientRequest request;
if (m_dataContext.SecurityMode == SecurityMode.Gateway)
{
if (string.IsNullOrWhiteSpace(sharedSecret) || string.IsNullOrWhiteSpace(m_key) || string.IsNullOrWhiteSpace(m_iv))
{
MessageBox.Show("Failed to import key and initialization vectors for associated shared secret - these fields cannot be blank.", "Crypto Key Import Error", MessageBoxButton.OK, MessageBoxImage.Error);
e.Cancel = true;
}
else
{
// Import key and initialization vector for subscriber into common crypto cache
if (ImportCipherKey(sharedSecret.Trim(), 256, m_key.Trim() + "|" + m_iv.Trim()))
{
ReloadServiceCryptoCache();
Cipher.ReloadCache();
}
else
{
MessageBox.Show("Failed to import key and initialization vectors for associated shared secret.", "Crypto Key Import Error", MessageBoxButton.OK, MessageBoxImage.Error);
e.Cancel = true;
}
}
}
else
{
try
{
if (SelfSignedCheckBox.IsChecked == true)
{
// If remote certificate is self-signed, ensure that we expect
// UntrustedRoot error to occur during certificate validation
m_dataContext.CurrentItem.ValidPolicyErrors |= SslPolicyErrors.RemoteCertificateChainErrors;
m_dataContext.CurrentItem.ValidChainFlags |= X509ChainStatusFlags.UntrustedRoot;
}
if ((object)m_dataContext.RemoteCertificateData != null)
{
windowsServiceClient = CommonFunctions.GetWindowsServiceClient();
windowsServiceClient.Helper.ReceivedServiceResponse += WindowsServiceClient_ReceivedServiceResponse;
m_certificateWaitHandle.Reset();
// If an srq file was imported to populate the fields on this page,
// then we will need to copy the attached certificate file from the
// temp folder to the correct location
request = new ClientRequest("INVOKE");
request.Arguments = new Arguments(string.Format("TLS!DATAPUBLISHER ImportCertificate {0}", m_dataContext.CurrentItem.RemoteCertificateFile));
request.Attachments.Add(m_dataContext.RemoteCertificateData);
windowsServiceClient.Helper.SendRequest(request);
if (!m_certificateWaitHandle.Wait(5000))
throw new InvalidOperationException("Timeout waiting for response to ImportCertificate command.");
m_dataContext.RemoteCertificateData = null;
}
}
catch (Exception ex)
{
const string ErrorMessage = "Successfully imported subscription request, but was" +
" unable to import remote certificate. Check that the manager is properly" +
" connected to the service.";
CommonFunctions.LogException(null, "Import Subscription Request", ex);
MessageBox.Show(ErrorMessage, "Import Subscription Request Error");
}
}
}
catch (Exception ex)
{
MessageBox.Show("Failed to import key and initialization vectors for associated shared secret due to exception: " + ex.Message, "Crypto Key Import Error", MessageBoxButton.OK, MessageBoxImage.Error);
e.Cancel = true;
}
}
/// <summary>
/// Raises the <see cref="ReceivedClientRequest"/> event.
/// </summary>
/// <param name="request">The <see cref="ClientRequest"/> that was received.</param>
/// <param name="requestSender">The <see cref="ClientInfo"/> object of the <paramref name="request"/> sender.</param>
protected virtual void OnReceivedClientRequest(ClientRequest request, ClientInfo requestSender)
{
if ((object)ReceivedClientRequest != null)
ReceivedClientRequest(this, new EventArgs<Guid, ClientRequest>(requestSender.ClientID, request));
}
/// <summary>
/// Converts <see cref="string"/> to a <see cref="ClientRequest"/>.
/// </summary>
/// <param name="text">Text to be converted to a <see cref="ClientRequest"/>.</param>
/// <returns><see cref="ClientRequest"/> object if parsing is successful; otherwise null.</returns>
public static ClientRequest Parse(string text)
{
// Input text can't be null.
if ((object)text == null)
return null;
// Input text can't be empty.
text = text.Trim();
if (text == "")
return null;
string[] textSegments = text.Split(' ');
ClientRequest request = new ClientRequest();
request.Command = textSegments[0].ToUpper();
if (textSegments.Length == 1)
request.Arguments = new Arguments("");
else
request.Arguments = new Arguments(text.Remove(0, text.IndexOf(' ') + 1).Trim());
return request;
}
/// <summary>
/// Initializes a new instance of the <see cref="ClientRequestInfo"/> class.
/// </summary>
/// <param name="sender"><see cref="ClientInfo"/> object of the <paramref name="request"/> sender.</param>
/// <param name="request"><see cref="ClientRequest"/> object sent by the <paramref name="sender"/>.</param>
public ClientRequestInfo(ClientInfo sender, ClientRequest request)
{
Request = request;
Sender = sender;
ReceivedAt = DateTime.UtcNow;
}
/// <summary>
/// Sends a request to the <see cref="ServiceHelper"/> using <see cref="RemotingClient"/>.
/// </summary>
/// <param name="request"><see cref="ClientRequest"/> object to be sent.</param>
public void SendRequest(ClientRequest request)
{
try
{
// Intercept TRANSFER requests for uploads.
if (request.Command == "TRANSFER" && request.Arguments.Exists("upload"))
{
string source = FilePath.GetAbsolutePath(request.Arguments["orderedarg1"]);
if (File.Exists(source))
{
// Attach the file content.
request.Attachments.Add(File.ReadAllBytes(source));
}
else
{
// File does not exist.
throw new FileNotFoundException(string.Format("File '{0}' does not exist", source));
}
}
// Pass the request along.
m_remotingClient.SendAsync(request);
}
catch (Exception ex)
{
UpdateStatus(UpdateType.Alarm, "Error processing request - {0}", ex.Message);
}
}
/// <summary>
/// Sends a request to the <see cref="ServiceHelper"/> using <see cref="RemotingClient"/>.
/// </summary>
/// <param name="request"><see cref="ClientRequest"/> object to be sent.</param>
public void SendRequest(ClientRequest request)
{
m_remotingClient.SendAsync(request);
}
private bool TryCreateRequest()
{
try
{
// Generate authorization request
SaveFileDialog saveFileDialog;
WindowsServiceClient serviceClient;
ClientRequest clientRequest;
AuthenticationRequest request;
string[] keyIV;
saveFileDialog = new SaveFileDialog();
saveFileDialog.DefaultExt = ".srq";
saveFileDialog.Filter = "Subscription Requests|*.srq|All Files|*.*";
if (saveFileDialog.ShowDialog() == true)
{
request = new AuthenticationRequest();
// Set up the request
request.Acronym = SubscriberAcronym;
request.Name = SubscriberName;
request.ValidIPAddresses = ValidIPAddresses;
// Cipher key only applies to Gateway security
if (SecurityMode == SecurityMode.Gateway)
{
// Export cipher key to common crypto cache
if (!ExportCipherKey(SharedKey, 256))
throw new Exception("Failed to export cipher keys from common key cache.");
// Reload local crypto cache and get key and IV
// that go into the authentication request
Cipher.ReloadCache();
keyIV = Cipher.ExportKeyIV(SharedKey, 256).Split('|');
// Set up crypto settings in the request
request.SharedSecret = SharedKey;
request.AuthenticationID = IdentityCertificate;
request.Key = keyIV[0];
request.IV = keyIV[1];
}
// Local certificate only applies to TLS security
if (SecurityMode == SecurityMode.TLS)
{
if (File.Exists(m_localCertificateFile))
{
request.CertificateFile = File.ReadAllBytes(m_localCertificateFile);
}
else
{
try
{
serviceClient = CommonFunctions.GetWindowsServiceClient();
serviceClient.Helper.ReceivedServiceResponse += Helper_ReceivedServiceResponse;
serviceClient.Helper.SendRequest("INVOKE TLS!DATAPUBLISHER GetLocalCertificate");
// Wait for command response allowing for processing time
if ((object)m_responseComplete != null)
{
if (!m_responseComplete.WaitOne(5000))
throw new TimeoutException("Timed-out after 5 seconds waiting for service response.");
}
request.CertificateFile = m_localCertificateData;
}
catch (Exception ex)
{
string message = string.Format("Unable to get the local certificate used by the service: {0}", ex.Message);
throw new InvalidOperationException(message, ex);
}
}
if ((object)m_remoteCertificateData != null)
{
serviceClient = CommonFunctions.GetWindowsServiceClient();
serviceClient.Helper.ReceivedServiceResponse += Helper_ReceivedServiceResponse;
clientRequest = new ClientRequest("INVOKE");
clientRequest.Arguments = new Arguments(string.Format("TLS!DATAPUBLISHER ImportCertificate {0}", m_remoteCertificateFile));
clientRequest.Attachments.Add(m_remoteCertificateData);
serviceClient.Helper.SendRequest(clientRequest);
if ((object)m_responseComplete != null)
{
if (!m_responseComplete.WaitOne(5000))
throw new InvalidOperationException("Timeout waiting for response to ImportCertificate command.");
}
m_remoteCertificateData = null;
}
}
// Create the request
using (FileStream requestStream = File.OpenWrite(saveFileDialog.FileName))
{
Serialization.Serialize(request, SerializationFormat.Binary, requestStream);
}
// Send ReloadCryptoCache to service
if (SecurityMode == SecurityMode.Gateway)
ReloadServiceCryptoCache();
return true;
}
}
catch (Exception ex)
{
string message = string.Format("Error creating authorization request: {0}", ex.Message);
Popup(message, "Subscription Request Error", MessageBoxImage.Error);
CommonFunctions.LogException(null, "Subscription Request", ex);
}
return false;
}
/// <summary>
/// Initializes a new instance of the <see cref="ClientRequestInfo"/> class.
/// </summary>
/// <param name="sender"><see cref="ClientInfo"/> object of the <paramref name="request"/> sender.</param>
/// <param name="request"><see cref="ClientRequest"/> object sent by the <paramref name="sender"/>.</param>
public ClientRequestInfo(ClientInfo sender, ClientRequest request)
{
Request = request;
Sender = sender;
ReceivedAt = DateTime.UtcNow;
}