// * //
// Unmount encrypted filesystem //
public static BooleanResult UnmountEncryptedFS(string targetDrive)
{
using (Process process = new Process())
{
// GET Dokan DIRECTORY
string programDir = Toolbox.GetSoftwareDirectory(Config.Software.Dokan);
if (programDir == null)
{
return(new BooleanResult()
{
Success = false, Message = "ERROR: Dokan inaccessible!"
});
}
// UNMOUNT ENCRYPTED FS
ProcessStartInfo startInfo = new ProcessStartInfo();
try
{
//.\dokanctl.exe /u Z:
startInfo.WindowStyle = ProcessWindowStyle.Hidden;
startInfo.CreateNoWindow = true;
startInfo.FileName = "cmd.exe";
startInfo.Arguments = "/C \"\"" + programDir + "dokanctl.exe\" /u \"" + targetDrive + ":\"\"";
process.StartInfo = startInfo;
process.Start();
process.WaitForExit();
// Ensure no errors were thrown (unmount status 0 = error, 1 = unmounted)
if (process.ExitCode != 1)
{
return(new BooleanResult()
{
Success = false, Message = "ERROR: Error while unmounting! " + process.ExitCode
});
}
}
catch (Exception err)
{
return(new BooleanResult()
{
Success = false, Message = "ERROR: Failed to unmount encrypted FS! " + err.Message
});
}
}
// Invalidate EncFS instances that claim to be using this drive
EncryptFS.InvalidateDrive(targetDrive);
return(new BooleanResult()
{
Success = true
});
}
private BooleanResult unmountCloud(string guid)
{
// Helper result object
BooleanResult res = null;
// Check to see if it is mounted //
Dictionary <string, string> mounts = EncryptFS.GetAllMountedEncFS();
if (mounts == null)
{
return(new BooleanResult()
{
Success = false, Message = "ERROR: Cannot figure out which EncFS instances are mounted!"
});
}
if (!mounts.ContainsKey(guid))
{
return(new BooleanResult()
{
Success = false, Message = "This encrypted folder does not appear to be mounted!"
});
}
// * //
// Determine where this cloud is mounted to //
string targetDrive = (string)Registry.GetValue(Config.CURR_USR_REG_DRIVE_ROOT + guid, "encDrive", null);
if (string.IsNullOrEmpty(targetDrive))
{
return(new BooleanResult()
{
Success = false, Message = "ERROR: Target drive not found! Is cloud mounted?"
});
}
// * //
// Unmount encrypted drive
res = EncryptFS.UnmountEncryptedFS(targetDrive);
if (res == null || !res.Success)
{
return(res);
}
// * //
return(new BooleanResult()
{
Success = true
});
}
private BooleanResult mountCloud(string guid, Config.Clouds cloudSelected, string cloudPath)
{
// Get password from user //
var promptPassword = new PromptPassword();
if (promptPassword.ShowDialog() != DialogResult.OK)
{
// Cancelled
return(new BooleanResult()
{
Success = true
});
}
string password = promptPassword.CloudPassword;
// * //
// GET NEXT FREE DRIVE LETTER
string targetDrive = Toolbox.GetNextFreeDriveLetter();
if (targetDrive == null)
{
return(new BooleanResult()
{
Success = false, Message = "ERROR: Cannot find a free drive letter!"
});
}
// * //
// Helper result object
BooleanResult res = null;
// Check to see if it is already mounted //
Dictionary <string, string> mounts = EncryptFS.GetAllMountedEncFS();
if (mounts == null)
{
return(new BooleanResult()
{
Success = false, Message = "ERROR: Cannot figure out which EncFS instances are mounted!"
});
}
if (mounts.ContainsKey(guid))
{
return(new BooleanResult()
{
Success = false, Message = "This encrypted folder appears to already be mounted!"
});
}
// * //
// Get and decrypt user's master key (using user password) //
string masterKey = null;
string encHeader = (string)Registry.GetValue(Config.CURR_USR_REG_DRIVE_ROOT + guid, "encHeader", null);
if (string.IsNullOrEmpty(encHeader))
{
return(new BooleanResult()
{
Success = false, Message = "ERROR: User's header information could not be found!"
});
}
masterKey = Toolbox.PasswordDecryptKey(encHeader, password);
// Make sure we got a key back
if (masterKey == null)
{
return(new BooleanResult()
{
Success = false, Message = "ERROR: Failed to decrypt master key!"
});
}
// * //
// Mount their freshly-created encrypted drive
res = EncryptFS.MountEncryptedFS(guid, targetDrive, masterKey, "Secure " + cloudSelected.ToString());
if (res == null || !res.Success)
{
return(res);
}
// * //
return(new BooleanResult()
{
Success = true
});
}
private BooleanResult encryptCloud(Config.Clouds cloudSelected, string cloudPath)
{
// Get new password from user //
var promptPassword = new PromptNewPassword();
if (promptPassword.ShowDialog() != DialogResult.OK)
{
// Cancelled
return(new BooleanResult()
{
Success = true
});
}
string password = promptPassword.CloudPassword;
string passwordConf = promptPassword.CloudPasswordConfirm;
// * //
// Sanity checks //
if (password.Length < Config.MIN_PASSWORD_LEN || !string.Equals(password, passwordConf))
{
return(new BooleanResult()
{
Success = false, Message = "Passwords provided must match and be non-zero in length!"
});
}
// * //
// GET NEXT FREE DRIVE LETTER
string targetDrive = Toolbox.GetNextFreeDriveLetter();
if (targetDrive == null)
{
return(new BooleanResult()
{
Success = false, Message = "ERROR: Cannot find a free drive letter!"
});
}
// * //
// Microsoft OneDrive will cause problems during migration if it is running,
// so terminate it before we start
if (cloudSelected == Config.Clouds.OneDrive)
{
// Ask user permission to close process first
var confirmResult = MessageBox.Show("OneDrive process must be stopped before migration.", "Should I close it?", MessageBoxButtons.YesNo);
if (confirmResult != DialogResult.Yes)
{
return(new BooleanResult()
{
Success = false, Message = "ERROR: Please close OneDrive application before migration."
});
}
// Try OneDrive first, then SkyDrive
Process[] processes = Process.GetProcessesByName("OneDrive");
if (processes.Length == 0)
{
processes = Process.GetProcessesByName("SkyDrive");
}
// If we found a OneDrive/SkyDrive process running, attempt to close it, or kill it otherwise
if (processes.Length > 0)
{
processes[0].CloseMainWindow();
processes[0].WaitForExit(5000);
if (!processes[0].HasExited)
{
processes[0].Kill();
processes[0].WaitForExit(5000);
if (!processes[0].HasExited)
{
return(new BooleanResult()
{
Success = false, Message = "ERROR: Could not close OneDrive application!"
});
}
}
}
}
else
{
// Tell user to turn of syncing for service
var confirmResult = MessageBox.Show("Please remember to disable file syncronization for " + cloudSelected.ToString(), "Press OK when you're ready.", MessageBoxButtons.OKCancel);
if (confirmResult != DialogResult.OK)
{
return(new BooleanResult()
{
Success = false, Message = "ERROR: Please disable file synchronization before migration."
});
}
}
// * //
// Disable while we calcualte stuff
this.Cursor = Cursors.WaitCursor;
g_tabContainer.Controls[1].Enabled = false;
// Progress bar
s_progress.Value = 0;
s_progress.Visible = true;
Application.DoEvents();
s_progress.ProgressBar.Refresh();
// Generate a new GUID to identify this FS
string guid = Guid.NewGuid().ToString();
// Helper result object
BooleanResult res = null;
// Run work-heavy tasks in a separate thread
CancellationTokenSource cts = new CancellationTokenSource();
CancellationToken cancelToken = cts.Token;
var workerThread = Task.Factory.StartNew(() =>
{
// Update UI
this.Invoke((MethodInvoker) delegate
{
s_progress.Value = 25;
l_statusLabel.Text = "Generating encryption key ...";
Application.DoEvents();
s_progress.ProgressBar.Refresh();
});
// Generate master key & protect with user password //
string masterKey = Toolbox.GenerateKey(Config.MASTERKEY_PW_CHAR_COUNT);
string encMasterKey = Toolbox.PasswordEncryptKey(masterKey, password);
// Ensure we got good stuff back
if (masterKey == null)
{
return(new BooleanResult()
{
Success = false, Message = "ERROR: Cannot generate master key!"
});
}
if (encMasterKey == null)
{
return(new BooleanResult()
{
Success = false, Message = "ERROR: Cannot encrypt master key!"
});
}
Registry.SetValue(Config.CURR_USR_REG_DRIVE_ROOT + guid, "encHeader", encMasterKey);
// * //
// Generate temporary location to hold enc data
string tempFolderName = cloudPath + ".backup-" + Path.GetRandomFileName();
Directory.CreateDirectory(tempFolderName);
// Update UI
this.Invoke((MethodInvoker) delegate
{
s_progress.Value = 50;
l_statusLabel.Text = "Creating EncFS drive";
Application.DoEvents();
s_progress.ProgressBar.Refresh();
});
// Create new EncFS
res = EncryptFS.CreateEncryptedFS(guid, cloudPath, targetDrive, masterKey, "Secure " + cloudSelected.ToString(), true);
if (res == null || !res.Success)
{
return(res);
}
// * //
// Update UI
this.Invoke((MethodInvoker) delegate
{
s_progress.Value = 75;
l_statusLabel.Text = "Copying data from Cloud folder to encrypted drive";
Application.DoEvents();
s_progress.ProgressBar.Refresh();
});
// Copy cloud data over
res = EncryptFS.MoveDataFromFolder(cloudPath, tempFolderName);
if (res == null || !res.Success)
{
return(res);
}
res = EncryptFS.CopyDataFromFolder(tempFolderName, targetDrive + ":\\");
if (res == null || !res.Success)
{
return(res);
}
// * //
return(new BooleanResult()
{
Success = true
});
}, TaskCreationOptions.LongRunning);
// When threaded tasks finish, check for errors and continue (if appropriate)
workerThread.ContinueWith((antecedent) =>
{
// Block until we get a result back from previous thread
BooleanResult result = antecedent.Result;
// Check if there was an error in previous thread
if (result == null || !result.Success)
{
ReportEncryptCloudError(result);
return;
}
// Re-enable everything //
this.Cursor = Cursors.Default;
g_tabContainer.Controls[1].Enabled = true;
l_statusLabel.Text = "Successfully moved your cloud folder!";
s_progress.Value = 0;
s_progress.Visible = false;
Application.DoEvents();
// * //
},
cancelToken,
TaskContinuationOptions.OnlyOnRanToCompletion,
TaskScheduler.FromCurrentSynchronizationContext()
);
return(new BooleanResult()
{
Success = true
});
}
private void b_cloudAction_Click(object sender, EventArgs e)
{
// Determine which type of cloud service they want to perform action on
Config.Clouds cloudSelected;
if (rb_cloud_Google.Checked)
{
cloudSelected = Config.Clouds.GoogleDrive;
}
else if (rb_cloud_OneDrive.Checked)
{
cloudSelected = Config.Clouds.OneDrive;
}
else if (rb_cloud_Dropbox.Checked)
{
cloudSelected = Config.Clouds.Dropbox;
}
else
{
ReportEncryptCloudError(new BooleanResult()
{
Success = false, Message = "ERROR: Unsupported cloud type selected!"
});
return;
}
// * //
// Figure out where the cloud's folder is on this computer //
string cloudPath = EncryptFS.GetCloudServicePath(cloudSelected);
if (cloudPath == null)
{
ReportEncryptCloudError(new BooleanResult()
{
Success = false, Message = "ERROR: Cannot determine the location of your cloud service!"
});
return;
}
// * //
// Find guid of desired cloud folder //
string guid = null;
RegistryKey OurKey = Registry.CurrentUser;
OurKey = OurKey.OpenSubKey(@"Software\Keenou\drives");
if (OurKey != null)
{
foreach (string Keyname in OurKey.GetSubKeyNames())
{
RegistryKey key = OurKey.OpenSubKey(Keyname);
if (key.GetValue("encContainerLoc") != null && key.GetValue("encContainerLoc").ToString() == cloudPath)
{
guid = Keyname.ToString();
}
}
}
// * //
// Helper result object
BooleanResult res = null;
// If there is no registered guid yet, then it's the first time (set up) //
if (guid == null)
{
res = this.encryptCloud(cloudSelected, cloudPath);
if (res == null || !res.Success)
{
ReportEncryptCloudError(res);
return;
}
return;
}
// * //
// Check to see if it is mounted //
Dictionary <string, string> mounts = EncryptFS.GetAllMountedEncFS();
if (mounts == null)
{
ReportEncryptCloudError(new BooleanResult()
{
Success = false, Message = "ERROR: Cannot figure out which EncFS instances are mounted!"
});
return;
}
if (mounts.ContainsKey(guid))
{
// already mounted -- unmount
res = this.unmountCloud(guid);
if (res == null || !res.Success)
{
ReportEncryptCloudError(res);
return;
}
return;
}
else
{
// not yet mounted -- mount
res = this.mountCloud(guid, cloudSelected, cloudPath);
if (res == null || !res.Success)
{
ReportEncryptCloudError(res);
return;
}
return;
}
// * //
// We should never make it to here
}
// * //
// Mount encrypted filesystem //
public static BooleanResult MountEncryptedFS(string guid, string targetDrive, string masterKey, string label)
{
// Determine location of configuration file
string configLoc = (string)Registry.GetValue(Config.CURR_USR_REG_DRIVE_ROOT + guid, "configLoc", string.Empty);
if (string.IsNullOrEmpty(configLoc))
{
return(new BooleanResult()
{
Success = false, Message = "ERROR: Invalid GUID given to mount!"
});
}
// Pull enc volume location from registry for this GUID
string volumeLoc = (string)Registry.GetValue(Config.CURR_USR_REG_DRIVE_ROOT + guid, "encContainerLoc", string.Empty);
if (string.IsNullOrEmpty(volumeLoc))
{
return(new BooleanResult()
{
Success = false, Message = "ERROR: Invalid GUID given to mount!"
});
}
// Path cannot end with a slash due to CMD usage
volumeLoc = volumeLoc.TrimEnd(new[] { '/', '\\' });
using (Process process = new Process())
{
// GET EncFS DIRECTORY
string programDir = Toolbox.GetSoftwareDirectory(Config.Software.EncFS);
if (programDir == null)
{
return(new BooleanResult()
{
Success = false, Message = "ERROR: EncFS inaccessible!"
});
}
// GET Dokan DIRECTORY
string dokanDir = Toolbox.GetSoftwareDirectory(Config.Software.Dokan);
if (dokanDir == null)
{
return(new BooleanResult()
{
Success = false, Message = "ERROR: Dokan inaccessible!"
});
}
// MOUNT ENCRYPTED CONTAINER
ProcessStartInfo startInfo = new ProcessStartInfo();
try
{
//.\encfs.exe "C:\Users\jetwhiz\Desktop\encfs4win\testing" "Z:" --stdinpass -o volname="Secure Dropbox"
startInfo.WindowStyle = ProcessWindowStyle.Hidden;
startInfo.CreateNoWindow = true;
startInfo.RedirectStandardInput = true;
startInfo.UseShellExecute = false;
startInfo.FileName = "cmd.exe";
startInfo.EnvironmentVariables["ENCFS6_CONFIG"] = configLoc + Config.ENCFS_CONFIG_FILENAME;
startInfo.Arguments = "/C \"\"" + programDir + "encfs.exe\" --require-macs --stdinpass -o volname=\"" + label + "\" \"" + volumeLoc + "\" \"" + targetDrive + ":\"\"";
process.StartInfo = startInfo;
process.Start();
// Send stdin inputs to program
StreamWriter myStreamWriter = process.StandardInput;
myStreamWriter.WriteLine(masterKey); // user's password
myStreamWriter.Close();
// Give it a few seconds to finish
// TODO: Figure out better way to determine when EncFS has finished
process.WaitForExit(10000);
// If it exited by itself, it was in error
if (process.HasExited)
{
return(new BooleanResult()
{
Success = false, Message = "ERROR: Error while mounting encrypted FS! " + process.ExitCode
});
}
// Invalidate all other EncFS instances that still claim to be using this drive
EncryptFS.InvalidateDrive(targetDrive);
// Save where we mounted the encrypted volume
Registry.SetValue(Config.CURR_USR_REG_DRIVE_ROOT + guid, "encDrive", targetDrive);
// Process will block indefinitely (until unmount called), so just return
//process.WaitForExit();
}
catch (Exception err)
{
return(new BooleanResult()
{
Success = false, Message = "ERROR: Failed to mount encrypted FS! " + err.Message
});
}
}
return(new BooleanResult()
{
Success = true
});
}
// * //
// Create new encrypted filesystem //
public static BooleanResult CreateEncryptedFS(string guid, string volumeLoc, string targetDrive, string masterKey, string label, bool keepMounted = false)
{
// Path cannot end with a slash due to CMD usage
volumeLoc = volumeLoc.TrimEnd(new[] { '/', '\\' });
// GET EncFS DIRECTORY
string programDir = Toolbox.GetSoftwareDirectory(Config.Software.EncFS);
if (programDir == null)
{
return(new BooleanResult()
{
Success = false, Message = "ERROR: EncFS inaccessible!"
});
}
// GET Dokan DIRECTORY
string dokanDir = Toolbox.GetSoftwareDirectory(Config.Software.Dokan);
if (dokanDir == null)
{
return(new BooleanResult()
{
Success = false, Message = "ERROR: Dokan inaccessible!"
});
}
// Determine Keenou config file location for this volume
string configLoc = Environment.GetFolderPath(Environment.SpecialFolder.CommonApplicationData) + @"\Keenou\" + guid + @"\";
if (Directory.Exists(configLoc))
{
// TODO: auto-recovery?
return(new BooleanResult()
{
Success = false, Message = "ERROR: Possible GUID collision!"
});
}
// Create config file directory for this FS
Directory.CreateDirectory(configLoc);
// Save setting values to registry
Registry.SetValue(Config.CURR_USR_REG_DRIVE_ROOT + guid, "encContainerLoc", volumeLoc);
Registry.SetValue(Config.CURR_USR_REG_DRIVE_ROOT + guid, "configLoc", configLoc);
using (Process process = new Process())
{
// MOUNT ENCRYPTED CONTAINER
ProcessStartInfo startInfo = new ProcessStartInfo();
try
{
//.\encfs.exe "C:\Users\jetwhiz\Desktop\encfs4win\testing" "Z:" --stdinpass -o volname="Secure Dropbox"
startInfo.WindowStyle = ProcessWindowStyle.Hidden;
startInfo.CreateNoWindow = true;
startInfo.RedirectStandardInput = true;
startInfo.UseShellExecute = false;
startInfo.FileName = "cmd.exe";
startInfo.EnvironmentVariables["ENCFS6_CONFIG"] = configLoc + Config.ENCFS_CONFIG_FILENAME;
startInfo.Arguments = "/C \"\"" + programDir + "encfs.exe\" --stdinpass -o volname=\"" + label + "\" \"" + volumeLoc + "\" \"" + targetDrive + ":\"\"";
process.StartInfo = startInfo;
process.Start();
// Send stdin inputs to program
StreamWriter myStreamWriter = process.StandardInput;
myStreamWriter.WriteLine("p"); // paranoia mode
myStreamWriter.WriteLine(masterKey); // user's password
myStreamWriter.Close();
// Give it a few seconds to finish
// TODO: Figure out better way to determine when EncFS has finished
process.WaitForExit(10000);
// Unmount drive (forcing the closing of encfs process) if not already exited
if (!process.HasExited)
{
// Auto-unmount unless they asked us not to
if (!keepMounted)
{
BooleanResult res = EncryptFS.UnmountEncryptedFS(targetDrive);
if (res == null || !res.Success)
{
return(res);
}
}
else
{
// Invalidate all other EncFS instances that still claim to be using this drive
EncryptFS.InvalidateDrive(targetDrive);
// Save where we mounted the encrypted volume
Registry.SetValue(Config.CURR_USR_REG_DRIVE_ROOT + guid, "encDrive", targetDrive);
}
}
else
{
// If it exited by itself, it was in error
return(new BooleanResult()
{
Success = false, Message = "ERROR: Error while creating encrypted FS! " + process.ExitCode
});
}
// Process will block indefinitely (until unmount called), so just return
//process.WaitForExit();
}
catch (Exception err)
{
return(new BooleanResult()
{
Success = false, Message = "ERROR: Failed to create encrypted FS! " + err.Message
});
}
}
return(new BooleanResult()
{
Success = true
});
}
