private bool AddNewFileDRInfoToServer(ref string iv, ref string key, ref long creationTime)
{
bool retVal = false;
string lastError = string.Empty;
try
{
iv = string.Empty;
key = string.Empty;
creationTime = 0;
DRPolicy drPolicy = GetDRSetting();
string encryptedDRPolicy = DigitalRightControl.EncryptObjectToStr <DRPolicy>(drPolicy);
retVal = WebAPIServices.AddShareFile(encryptedDRPolicy, ref creationTime, ref key, ref iv, ref lastError);
if (!retVal)
{
MessageBoxHelper.PrepToCenterMessageBoxOnForm(this);
MessageBox.Show("Create share encrypted file failed with error:" + lastError, "Process share encrypted file", MessageBoxButtons.OK, MessageBoxIcon.Error);
return(retVal);
}
}
catch (Exception ex)
{
MessageBoxHelper.PrepToCenterMessageBoxOnForm(this);
MessageBox.Show("Get encryption key info failed with error:" + ex.Message, "GetEncryptionKeyAndIVFromServer", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
return(retVal);
}
public ShareFileForm(DRPolicy _selectedDRPolicy)
{
InitializeComponent();
this.selectedDRPolicy = _selectedDRPolicy;
InitializeDRSetting();
}
private DRPolicy GetDRSetting()
{
DRPolicy drPolicy = new DRPolicy();
try
{
drPolicy.AuthorizedProcessNames = textBox_authorizedProcessNames.Text.Trim().ToLower();
drPolicy.UnauthorizedProcessNames = textBox_UnauthorizedProcessNames.Text.Trim().ToLower();
drPolicy.AuthorizedUserNames = textBox_AuthorizedUserNames.Text.Trim().ToLower();
drPolicy.UnauthorizedUserNames = textBox_UnauthorizedUserNames.Text.Trim().ToLower();
DateTime expireDate = dateTimePicker_ExpireDate.Value.Date + dateTimePicker_ExpireTime.Value.TimeOfDay;
drPolicy.FileName = Path.GetFileName(textBox_TargetName.Text);
drPolicy.ExpireTime = expireDate.ToFileTime();
if (null != selectedDRPolicy)
{
drPolicy.EncryptionIV = selectedDRPolicy.EncryptionIV;
}
}
catch (Exception ex)
{
throw new Exception("Apply digital right failed with error:" + ex.Message);
}
return(drPolicy);
}
private void button_Delete_Click(object sender, EventArgs e)
{
button_Delete.Enabled = false;
try
{
if (listView_SharedFiles.SelectedItems.Count != 1)
{
MessageBoxHelper.PrepToCenterMessageBoxOnForm(this);
MessageBox.Show("Please select a file.", "Delete", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
string creationTimeStr = (string)listView_SharedFiles.SelectedItems[0].Tag;
if (sharedFileList.ContainsKey(creationTimeStr))
{
DRPolicy drPolicy = sharedFileList[creationTimeStr];
MessageBoxHelper.PrepToCenterMessageBoxOnForm(this);
if (MessageBox.Show("Are you sure you want to delete the file " + drPolicy.FileName + " ?", "Delete", MessageBoxButtons.YesNo, MessageBoxIcon.Question) != System.Windows.Forms.DialogResult.Yes)
{
return;
}
string fileName = drPolicy.FileName + "." + creationTimeStr;
string lastError = string.Empty;
//if (!WebFormServices.DeleteShareFile(AccountForm.accountName, AccountForm.password, fileName, ref lastError))
//{
// MessageBoxHelper.PrepToCenterMessageBoxOnForm(this);
// MessageBox.Show("Delete shared file " + selectedDRPolicy.FileName + " failed with error:" + lastError, "DeleteSharedFile", MessageBoxButtons.OK, MessageBoxIcon.Error);
// return;
//}
sharedFileList.Remove(creationTimeStr);
}
InitListView();
}
catch (Exception ex)
{
MessageBoxHelper.PrepToCenterMessageBoxOnForm(this);
MessageBox.Show("Delete shared file " + selectedDRPolicy.FileName + " failed with error " + ex.Message, "DeleteSharedFile", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
finally
{
button_Delete.Enabled = true;
}
}
private void button_Apply_Click(object sender, EventArgs e)
{
button_Apply.Enabled = false;
try
{
string lastError = string.Empty;
if (isNewFile)
{
if (CreateShareEncryptFile())
{
this.Close();
}
}
else
{
DRPolicy newDRPolicy = GetDRSetting();
newDRPolicy.CreationTime = selectedDRPolicy.CreationTime;
string encryptedDRPolicy = string.Empty;
encryptedDRPolicy = DigitalRightControl.EncryptObjectToStr <DRPolicy>(newDRPolicy);
//if (!WebFormServices.SetFileDRInfo(AccountForm.accountName, AccountForm.password, encryptedDRPolicy, ref lastError))
//{
// MessageBoxHelper.PrepToCenterMessageBoxOnForm(this);
// MessageBox.Show("Apply digital right information for file " + selectedDRPolicy.FileName + " failed with error " + lastError, "Apply", MessageBoxButtons.OK, MessageBoxIcon.Error);
// return;
//}
//else
{
MessageBoxHelper.PrepToCenterMessageBoxOnForm(this);
MessageBox.Show("Apply digital right information for file " + selectedDRPolicy.FileName + " succeeded.", "Apply", MessageBoxButtons.OK, MessageBoxIcon.Information);
this.Close();
return;
}
}
}
catch (Exception ex)
{
MessageBoxHelper.PrepToCenterMessageBoxOnForm(this);
MessageBox.Show("Apply digital right information for file " + selectedDRPolicy.FileName + " failed with error " + ex.Message, "Apply", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
finally
{
button_Apply.Enabled = true;
}
}
public bool GetSharedFileList()
{
string lastError = string.Empty;
string encryptFileList = string.Empty;
Dictionary <string, DRPolicy> shareList = new Dictionary <string, DRPolicy>();
//bool retVal = WebFormServices.GetFileList(AccountForm.accountName, AccountForm.password, ref encryptFileList, ref lastError);
//if (!retVal)
//{
// MessageBoxHelper.PrepToCenterMessageBoxOnForm(this);
// MessageBox.Show(lastError, "GetFileList", MessageBoxButtons.OK, MessageBoxIcon.Error);
// return false;
//}
//else
{
if (encryptFileList.Length > 0)
{
List <string> decrypFileList = DigitalRightControl.DecryptStrToObject <List <string> >(encryptFileList);
foreach (string name in decrypFileList)
{
if (name.Length > 0)
{
//the extension of the file is the creation time.
string creationTimeStr = Path.GetExtension(name).Substring(1);
string fileName = Path.GetFileNameWithoutExtension(name);
DRPolicy drPolicy = new DRPolicy();
drPolicy.FileName = fileName;
drPolicy.CreationTime = long.Parse(creationTimeStr);
drPolicy.ExpireTime = 0;
shareList.Add(creationTimeStr, drPolicy);
}
}
}
sharedFileList = shareList;
InitListView();
}
return(true);
}
private bool AddNewFileDRInfoToServer(ref string iv, ref string key, ref long creationTime)
{
bool retVal = false;
string lastError = string.Empty;
try
{
iv = string.Empty;
key = string.Empty;
creationTime = 0;
if (AccountForm.accountName.Length == 0 || AccountForm.password.Length == 0)
{
MessageBoxHelper.PrepToCenterMessageBoxOnForm(this);
MessageBox.Show("Can't enable revoke access feature for guest user!", "Create share encrypted file", MessageBoxButtons.OK, MessageBoxIcon.Error);
return(retVal);
}
selectedDRPolicy = GetDRSetting();
string encryptedDRPolicy = DigitalRightControl.EncryptObjectToStr <DRPolicy>(selectedDRPolicy);
//retVal = WebFormServices.AddNewFile(AccountForm.accountName, AccountForm.password, encryptedDRPolicy, ref creationTime, ref key, ref iv, ref lastError);
//if (!retVal)
//{
// MessageBoxHelper.PrepToCenterMessageBoxOnForm(this);
// MessageBox.Show("Create share encrypted file failed with error:" + lastError, "Process share encrypted file", MessageBoxButtons.OK, MessageBoxIcon.Error);
// return retVal;
//}
//else
{
selectedDRPolicy.CreationTime = creationTime;
isNewFileAddedToServer = true;
}
}
catch (Exception ex)
{
MessageBoxHelper.PrepToCenterMessageBoxOnForm(this);
MessageBox.Show("Get encryption key info failed with error:" + ex.Message, "GetEncryptionKeyAndIVFromServer", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
return(retVal);
}
public ShareFileForm(DRPolicy drPolicy)
{
InitializeComponent();
textBox_FileName.Text = drPolicy.FileName;
selectedDRPolicy = drPolicy;
textBox_FileName.Enabled = false;
textBox_TargetName.Enabled = false;
button_OpenFile.Enabled = false;
dateTimePicker_ExpireDate.Value = DateTime.FromFileTime(drPolicy.ExpireTime);
dateTimePicker_ExpireTime.Value = DateTime.FromFileTime(drPolicy.ExpireTime);
textBox_authorizedProcessNames.Text = drPolicy.AuthorizedProcessNames;
textBox_UnauthorizedProcessNames.Text = drPolicy.UnauthorizedProcessNames;
textBox_AuthorizedUserNames.Text = drPolicy.AuthorizedUserNames;
textBox_UnauthorizedUserNames.Text = drPolicy.UnauthorizedUserNames;
button_CreateFile.Text = "Apply change";
}
private void toolStripButton_ModifyShareFile_Click(object sender, EventArgs e)
{
if (listView_SharedFiles.SelectedItems.Count != 1)
{
MessageBoxHelper.PrepToCenterMessageBoxOnForm(this);
MessageBox.Show("Please select a file.", "Edit", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
DRPolicy drPolicy = (DRPolicy)listView_SharedFiles.SelectedItems[0].Tag;
ShareFileForm shareFileForm = new ShareFileForm(drPolicy);
shareFileForm.Text = "EaseFilter Shared File Modification";
if (shareFileForm.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
GetSharedFileList();
InitShareFileListView();
}
}
private void button_EditSharedFile_Click(object sender, EventArgs e)
{
if (listView_SharedFiles.SelectedItems.Count != 1)
{
MessageBoxHelper.PrepToCenterMessageBoxOnForm(this);
MessageBox.Show("Please select a file.", "Edit", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
string creationTimeStr = (string)listView_SharedFiles.SelectedItems[0].Tag;
if (sharedFileList.ContainsKey(creationTimeStr))
{
DRPolicy drPolicy = sharedFileList[creationTimeStr];
if (drPolicy.ExpireTime == 0)
{
string fileName = drPolicy.FileName;
long creationTime = drPolicy.CreationTime;
string lastError = string.Empty;
string encryptedDRPolicy = string.Empty;
//bool retVal = WebFormServices.GetFileDRInfo(AccountForm.accountName, AccountForm.password, fileName, creationTime, ref encryptedDRPolicy, ref lastError);
//if (!retVal)
//{
// MessageBoxHelper.PrepToCenterMessageBoxOnForm(this);
// MessageBox.Show("Get digital right information for file " + fileName + " failed with error:" + lastError, "GetFileDRInfo", MessageBoxButtons.OK, MessageBoxIcon.Error);
// return;
//}
drPolicy = DigitalRightControl.DecryptStrToObject <DRPolicy>(encryptedDRPolicy);
drPolicy.CreationTime = creationTime;
sharedFileList[creationTimeStr] = drPolicy;
}
ShareFileForm shareFileForm = new ShareFileForm(drPolicy);
shareFileForm.ShowDialog();
}
}
private void toolStripButton_RemoveShareFile_Click(object sender, EventArgs e)
{
if (listView_SharedFiles.SelectedItems.Count != 1)
{
MessageBoxHelper.PrepToCenterMessageBoxOnForm(this);
MessageBox.Show("Please select a file.", "Delete", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
DRPolicy drPolicy = (DRPolicy)listView_SharedFiles.SelectedItems[0].Tag;
string lastError = string.Empty;
if (!WebAPIServices.DeleteShareFile(drPolicy.EncryptionIV, ref lastError))
{
MessageBoxHelper.PrepToCenterMessageBoxOnForm(this);
MessageBox.Show("Delete shared file " + selectedDRPolicy.FileName + " failed with error:" + lastError, "DeleteSharedFile", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
GetSharedFileList();
}
private DRPolicy GetDRSetting()
{
DRPolicy drPolicy = new DRPolicy();
try
{
drPolicy.IncludeProcessNames = textBox_IncludeProcessNames.Text.Trim().ToLower();
drPolicy.ExcludeProcessNames = textBox_ExcludeProcessNames.Text.Trim().ToLower();
drPolicy.IncludeUserNames = textBox_IncludeUserNames.Text.Trim().ToLower();
drPolicy.ExcludeUserNames = textBox_ExcludeUserNames.Text.Trim().ToLower();
drPolicy.IncludeComputerIds = textBox_IncludeComputerIds.Text.Trim();
DateTime expireDate = dateTimePicker_ExpireDate.Value.Date + dateTimePicker_ExpireTime.Value.TimeOfDay;
drPolicy.ExpireTime = expireDate.ToUniversalTime().ToFileTime();
drPolicy.FileName = Path.GetFileName(textBox_OutputFilePath.Text);
drPolicy.UserPassword = textBox_UserPassword.Text.Trim();
}
catch (Exception ex)
{
throw new Exception("Apply digital right failed with error:" + ex.Message);
}
return(drPolicy);
}
private bool CreateOrModifyShareEncryptFile()
{
string lastError = string.Empty;
string authorizedProcessNames = textBox_authorizedProcessNames.Text.Trim();
string unauthorizedProcessNames = textBox_UnauthorizedProcessNames.Text.Trim();
string authorizedUserNames = textBox_AuthorizedUserNames.Text.Trim();
string unauthorizedUserNames = textBox_UnauthorizedUserNames.Text.Trim();
string fileName = textBox_FileName.Text.Trim();
string targetFileName = textBox_TargetName.Text;
try
{
if (fileName.Length == 0)
{
MessageBoxHelper.PrepToCenterMessageBoxOnForm(this);
MessageBox.Show("The file name can't be empty.", "Create share encrypted file", MessageBoxButtons.OK, MessageBoxIcon.Error);
return(false);
}
DateTime expireDateTime = dateTimePicker_ExpireDate.Value.Date + dateTimePicker_ExpireTime.Value.TimeOfDay;
if (expireDateTime <= DateTime.Now)
{
MessageBoxHelper.PrepToCenterMessageBoxOnForm(this);
MessageBox.Show("The expire time can't be less than current time.", "Create share encrypted file", MessageBoxButtons.OK, MessageBoxIcon.Error);
return(false);
}
if (selectedDRPolicy != null)
{
DRPolicy drPolicy = GetDRSetting();
string encryptedDRPolicy = DigitalRightControl.EncryptObjectToStr <DRPolicy>(drPolicy);
if (WebAPIServices.ModifySharedFileDRInfo(encryptedDRPolicy, ref lastError))
{
MessageBoxHelper.PrepToCenterMessageBoxOnForm(this);
MessageBox.Show("Modify shared file " + textBox_FileName.Text + " policy succeeded.", "Modify shared file", MessageBoxButtons.OK, MessageBoxIcon.Information);
return(true);
}
else
{
MessageBoxHelper.PrepToCenterMessageBoxOnForm(this);
MessageBox.Show("Modify shared file " + textBox_FileName.Text + " policy failed with error:" + lastError, "Modify shared file", MessageBoxButtons.OK, MessageBoxIcon.Error);
return(false);
}
}
//here we generate the random unique IV and key, you can use your own key and iv
byte[] encryptionIV = Utils.GetRandomIV();
byte[] encryptionKey = Utils.GetRandomKey();
string keyStr = string.Empty;
string ivStr = string.Empty;
if (GlobalConfig.StoreSharedFileMetaDataInServer)
{
long creationTime = DateTime.Now.ToFileTime();
//send the encrypted file digital right information to the server and get back the iv and key.
if (!AddNewFileDRInfoToServer(ref ivStr, ref keyStr, ref creationTime))
{
return(false);
}
if (ivStr.Length > 0 && keyStr.Length > 0)
{
encryptionIV = Utils.ConvertHexStrToByteArray(ivStr);
encryptionKey = Utils.ConvertHexStrToByteArray(keyStr);
}
}
//for this example, we add the encryptIV and account name as the tag data to the encrypted file
//you can add your own custom tag data to the encyrpted file, so when someone open the encrypted file, you will get the tag data.
string tagStr = GlobalConfig.AccountName + ";" + ivStr;
byte[] tagData = UnicodeEncoding.Unicode.GetBytes(tagStr);
bool retVal = false;
if (fileName.Equals(targetFileName, StringComparison.CurrentCulture))
{
retVal = FilterAPI.AESEncryptFileWithTag(fileName, (uint)encryptionKey.Length, encryptionKey, (uint)encryptionIV.Length, encryptionIV, (uint)tagData.Length, tagData);
}
else
{
retVal = FilterAPI.AESEncryptFileToFileWithTag(fileName, targetFileName, (uint)encryptionKey.Length, encryptionKey, (uint)encryptionIV.Length, encryptionIV, (uint)tagData.Length, tagData);
}
if (!retVal)
{
MessageBoxHelper.PrepToCenterMessageBoxOnForm(this);
MessageBox.Show("Create encrypted file " + targetFileName + " failed with error:" + FilterAPI.GetLastErrorMessage(), "Create share encrypted file", MessageBoxButtons.OK, MessageBoxIcon.Error);
if (GlobalConfig.StoreSharedFileMetaDataInServer)
{
WebAPIServices.DeleteShareFile(ivStr, ref lastError);
}
if (!fileName.Equals(targetFileName, StringComparison.CurrentCulture))
{
File.Delete(targetFileName);
}
return(false);
}
else
{
//set this flag to the encrypted file, require to get permission from user mode when the file open
if (!FilterAPI.SetHeaderFlags(targetFileName, (uint)AESFlags.Flags_Request_IV_And_Key_From_User, FilterAPI.ALLOW_MAX_RIGHT_ACCESS))
{
MessageBoxHelper.PrepToCenterMessageBoxOnForm(this);
MessageBox.Show("SetHeaderFlags for file " + targetFileName + " failed with error:" + FilterAPI.GetLastErrorMessage(), "SetHeaderFlags", MessageBoxButtons.OK, MessageBoxIcon.Error);
return(false);
}
if (!GlobalConfig.StoreSharedFileMetaDataInServer)
{
//add the permission meta data to a file and store it in the server, it will be used when the file open.
if (!DRServer.AddDRInfoToFile(targetFileName, authorizedProcessNames, unauthorizedProcessNames, authorizedUserNames, unauthorizedUserNames
, expireDateTime, encryptionIV, encryptionKey, FilterAPI.ALLOW_MAX_RIGHT_ACCESS.ToString()))
{
return(false);
}
}
MessageBoxHelper.PrepToCenterMessageBoxOnForm(this);
string message = "Create encrypted file " + targetFileName + " succeeded, you can distribute this encrypted file to your client.\r\n\r\nDownload this file to the share file drop folder in the client,";
message += " then start the filter service there, now you can open the encrypted file if the process in client has the permission.";
MessageBox.Show(message, "Share encrypted file", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
return(true);
}
catch (Exception ex)
{
MessageBoxHelper.PrepToCenterMessageBoxOnForm(this);
MessageBox.Show("Create share file failed with error " + ex.Message, "Create share encrypted file", MessageBoxButtons.OK, MessageBoxIcon.Error);
return(false);
}
}
public void InitShareFileListView()
{
textBox_SharedFileDropFolder.Text = GlobalConfig.ShareFolder;
listView_SharedFiles.Clear();
//create column header for ListView
listView_SharedFiles.Columns.Add("FileName", 150, System.Windows.Forms.HorizontalAlignment.Left);
listView_SharedFiles.Columns.Add("CreationTime", 100, System.Windows.Forms.HorizontalAlignment.Left);
listView_SharedFiles.Columns.Add("ExpireTime", 100, System.Windows.Forms.HorizontalAlignment.Left);
listView_SharedFiles.Columns.Add("AuthorizedProcessNames", 100, System.Windows.Forms.HorizontalAlignment.Left);
listView_SharedFiles.Columns.Add("UnauthorizedProcessNames", 100, System.Windows.Forms.HorizontalAlignment.Left);
listView_SharedFiles.Columns.Add("AuthorizedUserNames", 100, System.Windows.Forms.HorizontalAlignment.Left);
listView_SharedFiles.Columns.Add("UnauthorizedUserNames", 100, System.Windows.Forms.HorizontalAlignment.Left);
try
{
foreach (DRPolicy sharedFile in sharedFileList.Values)
{
int index = 0;
ListViewItem lvItem = new ListViewItem();
string[] listEntry = new string[listView_SharedFiles.Columns.Count];
string fileName = sharedFile.FileName;
if (fileName.EndsWith(GlobalConfig.ShareFileExt))
{
fileName = fileName.Replace(GlobalConfig.ShareFileExt, "");
}
listEntry[index++] = fileName;
long dateTimeN = sharedFile.CreationTime;
DateTime dateTimeD = DateTime.FromFileTime(dateTimeN);
listEntry[index++] = dateTimeD.ToShortDateString();// String.Format("{0:F}", dateTimeD);
dateTimeN = sharedFile.ExpireTime;
dateTimeD = DateTime.FromFileTime(dateTimeN);
listEntry[index++] = dateTimeD.ToShortDateString();//String.Format("{0:F}", dateTimeD);
listEntry[index++] = sharedFile.AuthorizedProcessNames;
listEntry[index++] = sharedFile.UnauthorizedProcessNames;
listEntry[index++] = sharedFile.AuthorizedUserNames;
listEntry[index++] = sharedFile.UnauthorizedUserNames;
lvItem = new ListViewItem(listEntry, 0);
lvItem.Tag = sharedFile;
int insertIndex = 0;
if (listView_SharedFiles.Items.Count > 0)
{
for (insertIndex = 0; insertIndex < listView_SharedFiles.Items.Count; insertIndex++)
{
DRPolicy sharedFileInList = (DRPolicy)(listView_SharedFiles.Items[insertIndex]).Tag;
if (sharedFile.CreationTime < sharedFileInList.CreationTime)
{
break;
}
}
}
listView_SharedFiles.Items.Insert(insertIndex, lvItem);
}
}
catch
{
}
}
