private void btnSignXML_Click(object sender, EventArgs e)
{
if (string.IsNullOrWhiteSpace(txtXmlFile.Text))
{
// files validation
MessageBox.Show("The XML file was not specified!", Text, MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
if (string.IsNullOrWhiteSpace(txtCert.Text))
{
// files validation
MessageBox.Show("The Signing Certificate was not specified!", Text, MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
if (string.IsNullOrWhiteSpace(txtCertPass.Text))
{
// certificate password validation
MessageBox.Show("Signing Certificate password was not specified!", Text, MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
if (string.IsNullOrWhiteSpace(txtKeyCert.Text))
{
// files validation
MessageBox.Show("Encryption Certificate was not specified!", Text, MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
try
{
// load XML file content
byte[] xmlContent = File.ReadAllBytes(txtXmlFile.Text);
string senderGIIN = Path.GetFileNameWithoutExtension(txtXmlFile.Text);
string filePath = Path.GetDirectoryName(txtXmlFile.Text);
// perform sign
byte[] envelopingSignature = XmlManager.Sign(XmlSignatureType.Enveloping, xmlContent, txtCert.Text, txtCertPass.Text);
string envelopingFileName = txtXmlFile.Text.Replace(".xml", "_Payload.xml");
string zipFileName = envelopingFileName.Replace(".xml", ".zip");
// save enveloping version to disk
File.WriteAllBytes(envelopingFileName, envelopingSignature);
// add enveloping signature to ZIP file
ZipManager.CreateArchive(envelopingFileName, zipFileName);
// generate AES key (32 bytes) & default initialization vector (empty)
byte[] aesEncryptionKey = AesManager.GenerateRandomKey(AesManager.KeySize / 8);
byte[] aesEncryptionVector = AesManager.GenerateRandomKey(16, radECB.Checked);
// encrypt file & save to disk
string encryptedFileName = zipFileName.Replace(".zip", "");
string encryptedHCTAFileName = zipFileName.Replace(".zip", "");
string payloadFileName = encryptedFileName;
AesManager.EncryptFile(zipFileName, encryptedFileName, aesEncryptionKey, aesEncryptionVector, radECB.Checked);
// encrypt key with public key of certificate & save to disk
encryptedFileName = Path.GetDirectoryName(zipFileName) + "\\000000.00000.TA.840_Key";
AesManager.EncryptAesKey(aesEncryptionKey, aesEncryptionVector, txtKeyCert.Text, txtKeyCertPassword.Text, encryptedFileName, radECB.Checked);
//For Model1 Option2 Only, encrypt the AES Key with the HCTA Public Key
if (chkM1O2.Checked)
{
encryptedHCTAFileName = Path.GetDirectoryName(zipFileName) + "\\000000.00000.TA." + txtHCTACode.Text + "_Key";
AesManager.EncryptAesKey(aesEncryptionKey, aesEncryptionVector, txtHCTACert.Text, txtHCTACertPassword.Text, encryptedHCTAFileName, radECB.Checked);
}
// cleanup
envelopingSignature = null;
aesEncryptionKey = aesEncryptionVector = null;
//Start creating XML metadata
XmlWriter writer = null;
string fileCreationDateTime = "";
fileCreationDateTime = DateTime.Now.ToString("yyyy'-'MM'-'dd'T'HH':'mm':'ssZ");
DateTime uDat = new DateTime();
uDat = DateTime.UtcNow;
string senderFile = uDat.ToString("yyyyMMddTHHmmssfffZ") + "_" + senderGIIN;
try
{
// Create an XmlWriterSettings object with the correct options.
XmlWriterSettings settings = new XmlWriterSettings();
settings.Indent = true;
settings.IndentChars = ("\t");
settings.OmitXmlDeclaration = false;
settings.NewLineHandling = NewLineHandling.Replace;
settings.CloseOutput = true;
string metadataFileName = filePath + "\\" + senderGIIN + "_Metadata.xml";
// Create the XmlWriter object and write some content.
writer = XmlWriter.Create(metadataFileName, settings);
writer.WriteStartElement("FATCAIDESSenderFileMetadata", "urn:fatca:idessenderfilemetadata");
writer.WriteAttributeString("xmlns", "xsi", null, "http://www.w3.org/2001/XMLSchema-instance");
writer.WriteStartElement("FATCAEntitySenderId");
writer.WriteString(senderGIIN);
writer.WriteEndElement();
writer.WriteStartElement("FATCAEntityReceiverId");
writer.WriteString("000000.00000.TA.840");
writer.WriteEndElement();
writer.WriteStartElement("FATCAEntCommunicationTypeCd");
writer.WriteString("RPT");
writer.WriteEndElement();
writer.WriteStartElement("SenderFileId");
writer.WriteString(senderFile);
writer.WriteEndElement();
writer.WriteStartElement("FileFormatCd");
writer.WriteString("XML");
writer.WriteEndElement();
writer.WriteStartElement("BinaryEncodingSchemeCd");
writer.WriteString("NONE");
writer.WriteEndElement();
writer.WriteStartElement("FileCreateTs");
writer.WriteString(fileCreationDateTime);
writer.WriteEndElement();
writer.WriteStartElement("TaxYear");
writer.WriteString(cmbTaxYear.SelectedItem.ToString());
writer.WriteEndElement();
writer.WriteStartElement("FileRevisionInd");
writer.WriteString("false");
writer.WriteEndElement();
//Close the XmlTextWriter.
writer.WriteEndDocument();
writer.Close();
writer.Flush();
//Add the metadata, payload, and key files to the final zip package
// add enveloping signature to ZIP file
ZipManager.CreateArchive(metadataFileName, filePath + "\\" + senderFile + ".zip");
ZipManager.UpdateArchive(encryptedFileName, filePath + "\\" + senderFile + ".zip");
ZipManager.UpdateArchive(payloadFileName, filePath + "\\" + senderFile + ".zip");
//Add the HCTA Key file for a M1O2 packet
if (chkM1O2.Checked)
{
ZipManager.UpdateArchive(encryptedHCTAFileName, filePath + "\\" + senderFile + ".zip");
}
// success
MessageBox.Show("XML Signing and Encryption process is complete!", Text, MessageBoxButtons.OK, MessageBoxIcon.Information);
}
finally
{
if (writer != null)
{
writer.Close();
}
}
}
catch (Exception ex)
{
ex.DisplayException(Text);
}
}
private void btnSignXML_Click(object sender, EventArgs e)
{
if (string.IsNullOrWhiteSpace(txtXmlFile.Text))
{
// files validation
MessageBox.Show("The XML file was not specified!", Text, MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
if (string.IsNullOrWhiteSpace(txtCert.Text))
{
// files validation
MessageBox.Show("The Signing Certificate was not specified!", Text, MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
if (string.IsNullOrWhiteSpace(txtCertPass.Text))
{
// certificate password validation
MessageBox.Show("Signing Certificate password was not specified!", Text, MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
if (string.IsNullOrWhiteSpace(txtKeyCert.Text))
{
// files validation
MessageBox.Show("Encryption Certificate was not specified!", Text, MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
if (chkSchemaValidation.Checked == true && string.IsNullOrWhiteSpace(txtSchemaFolder.Text))
{
// files validation
MessageBox.Show("Schema Validation selected but Schema Folder was not specified!", Text, MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
//this will be used as a holder for processed files if a folder is being sent
string processedFolder = "";
try
{
//if we are sending a folder, we will load up the files into an array to process
//otherwise, we will just load our file in the array
string[] filesToProcess;
if (chkSendFolder.Checked == false)
{
filesToProcess = new string[1];
filesToProcess[0] = txtXmlFile.Text;
}
else
{
// Load all XML files in the folder into an array
filesToProcess = Directory.GetFiles(txtXmlFile.Text, "*.xml", SearchOption.TopDirectoryOnly);
processedFolder = txtXmlFile.Text + "\\Processed";
//if the processedFolder doesn't exist, create it
if (!Directory.Exists(processedFolder))
{
Directory.CreateDirectory(processedFolder);
}
}
//This will loop through all files in the array
//This will be one file or it could be a set of files in a folder
string currentFileToProcess = "";
foreach (string fileName in filesToProcess)
{
currentFileToProcess = fileName;
//if the file we are processing has an underscore we will split it off for logging
//this should only happen for bulk sending from a folder
if (currentFileToProcess.Contains("_"))
{
string[] filePart = fileName.Split('_');
currentFileToProcess = txtXmlFile.Text + "\\" + filePart[1];
//Rename the file so we can process it
File.Move(fileName, currentFileToProcess);
}
// perform the schema validation if we have the checkbox checked for it
if (chkSchemaValidation.Checked)
{
string validationError = XmlManager.CheckSchema(currentFileToProcess, txtSchemaFolder.Text);
if (validationError != "")
{
// Show schema validation error(s)
MessageBox.Show("Schema Validation Error:\r\n" + validationError, Text, MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
}
// load XML file content
byte[] xmlContent = File.ReadAllBytes(currentFileToProcess);
string senderGIIN = Path.GetFileNameWithoutExtension(currentFileToProcess);
string filePath = Path.GetDirectoryName(currentFileToProcess);
string fileExtension = Path.GetExtension(currentFileToProcess.ToUpper()).Replace(".", "");
bool isXML = true;
if (fileExtension != "XML")
{
isXML = false;
}
// perform signature
byte[] envelopingSignature;
string envelopingFileName = "";
//if the file is XML we will use the enveloping digital signature for the XML
if (isXML == true)
{
envelopingSignature = XmlManager.Sign(XmlSignatureType.Enveloping, xmlContent, txtCert.Text, txtCertPass.Text, filePath);
envelopingFileName = currentFileToProcess.Replace(".xml", "_Payload.xml");
}
//if the file is NOT XML, we will convert the file data to base64 and put in XML and sign it
else
{
envelopingSignature = XmlManager.Sign(XmlSignatureType.NonXML, xmlContent, txtCert.Text, txtCertPass.Text, filePath);
envelopingFileName = currentFileToProcess.ToUpper().Replace(".PDF", "_Payload.xml");
}
string zipFileName = envelopingFileName.Replace(".xml", ".zip");
// save enveloping version to disk
File.WriteAllBytes(envelopingFileName, envelopingSignature);
// add enveloping signature to ZIP file
ZipManager.CreateArchive(envelopingFileName, zipFileName);
// generate AES key (32 bytes) & default initialization vector (empty)
byte[] aesEncryptionKey = AesManager.GenerateRandomKey(AesManager.KeySize / 8);
byte[] aesEncryptionVector = AesManager.GenerateRandomKey(16, radECB.Checked);
// encrypt file & save to disk
string encryptedFileName = zipFileName.Replace(".zip", "");
string encryptedHCTAFileName = zipFileName.Replace(".zip", "");
string payloadFileName = encryptedFileName + "";
AesManager.EncryptFile(zipFileName, encryptedFileName, aesEncryptionKey, aesEncryptionVector, radECB.Checked);
// encrypt key with public key of certificate & save to disk
encryptedFileName = Path.GetDirectoryName(zipFileName) + "\\000000.00000.TA.840_Key";;
AesManager.EncryptAesKey(aesEncryptionKey, aesEncryptionVector, txtKeyCert.Text, txtKeyCertPassword.Text, encryptedFileName, radECB.Checked);
//For Model1 Option2 Only, encrypt the AES Key with the HCTA Public Key
if (chkM1O2.Checked)
{
encryptedHCTAFileName = Path.GetDirectoryName(zipFileName) + "\\000000.00000.TA." + txtHCTACode.Text + "_Key";
AesManager.EncryptAesKey(aesEncryptionKey, aesEncryptionVector, txtHCTACert.Text, txtHCTACertPassword.Text, encryptedHCTAFileName, radECB.Checked);
}
// cleanup
envelopingSignature = null;
aesEncryptionKey = aesEncryptionVector = null;
try
{
DateTime uDat = new DateTime();
uDat = DateTime.UtcNow;
string senderFile = uDat.ToString("yyyyMMddTHHmmssfffZ") + "_" + senderGIIN;
string metadataFileName = filePath + "\\" + senderGIIN + "_Metadata.xml";
XmlManager.CreateMetadataFile(metadataFileName, fileExtension, isXML, cmbTaxYear.SelectedItem.ToString(), senderGIIN, senderFile);
//Check the signature to make sure it is valid, this requires the KeyInfo to be present
//This is controlled using the checkbox on the form
//This should be commented out or not selected if not using the KeyInfo in the XmlManager class
if (chkSignatureValidation.Checked)
{
bool result = XmlManager.CheckSignature(envelopingFileName);
if (result == false)
{
MessageBox.Show("Signature is not valid!", Text, MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
}
//Add the metadata, payload, and key files to the final zip package
// add enveloping signature to ZIP file
ZipManager.CreateArchive(metadataFileName, filePath + "\\" + senderFile + ".zip");
ZipManager.UpdateArchive(encryptedFileName, filePath + "\\" + senderFile + ".zip");
ZipManager.UpdateArchive(payloadFileName, filePath + "\\" + senderFile + ".zip");
//Add the HCTA Key file for a M1O2 packet
if (chkM1O2.Checked)
{
ZipManager.UpdateArchive(encryptedHCTAFileName, filePath + "\\" + senderFile + ".zip");
}
if (chkAutoSendSFTP.Checked == true)
{
SessionOptions currentSFTPSession = SFTPManager.CreateSFTPSession(cmbSFTPServers.SelectedItem.ToString(), username.Text, password.Text);
string sftpUpName = filePath + "\\" + senderFile + ".zip";
string transferResult = SFTPManager.UploadFile(currentSFTPSession, sftpUpName);
//This can be commented out if there is no desire to see an upload confirmation
MessageBox.Show(transferResult, Text, MessageBoxButtons.OK, MessageBoxIcon.Information);
//write to log
string path = @"simplelog.csv";
// This text is added only once to the file.
string lineToLog = fileName + "," + currentFileToProcess + "," + senderFile + ",IDESTRANSID,NOTIFICATIONID,NULL,ERRORCOUNT";
if (!File.Exists(path))
{
// Create a file to write to.
using (StreamWriter sw = File.CreateText(path))
{
sw.WriteLine(lineToLog);
}
}
else
{
// This text is always added, making the file longer over time
// if it is not deleted.
using (StreamWriter sw = File.AppendText(path))
{
sw.WriteLine(lineToLog);
}
}
}
if (chkSendFolder.Checked == true)
{
//Move the file to a processed folder so we can move on to the next
//This is only used when sending an entire folder
File.Move(currentFileToProcess, processedFolder + "\\" + Path.GetFileName(fileName));
}
}
catch (Exception ex)
{
ex.DisplayException(Text);
return;
}
finally
{
}
}
// success
MessageBox.Show("XML Signing and Encryption process is complete!", Text, MessageBoxButtons.OK, MessageBoxIcon.Information);
}
catch (Exception ex)
{
ex.DisplayException(Text);
}
}