public static bool insertDirectory(SQLiteConnection conn, DirectoryStatus newStatus, String filename, String path, DateTime lastModTime)
{
try
{
using (SQLiteCommand cmd = conn.CreateCommand())
{
cmd.CommandText = @"insert into snapshots (user_id,creation_time,path,filename,last_mod_time,directory) values"
+ " (@user, @creationTime, @path, @filename, @lastModTime, @directory);";
cmd.Parameters.AddWithValue("@user", newStatus.Username);
cmd.Parameters.AddWithValue("@creationTime", newStatus.CreationTime.ToString(date_format));
cmd.Parameters.AddWithValue("@path", path + "\\");
cmd.Parameters.AddWithValue("@filename", filename);
cmd.Parameters.AddWithValue("@lastModTime", lastModTime.ToString(date_format));
cmd.Parameters.AddWithValue("@directory", true);
cmd.ExecuteNonQuery();
}
//add directory
DirectoryFile dirFile = new DirectoryFile(path, filename, newStatus.Username, lastModTime, true);
newStatus.Files.Add(dirFile.Fullname, dirFile);
return true;
}
catch (SQLiteException) { return false;}
}
public static DirectoryStatus getAllSnapshots(String username) {
DirectoryStatus ds = new DirectoryStatus();
try
{
using (var con = new SQLiteConnection(DBmanager.connectionString))
{
con.Open();
using (var cmd = con.CreateCommand())
{
cmd.CommandText = @"select distinct path,creation_time from snapshots where user_id=@id";
cmd.Parameters.AddWithValue("@id", username);
using (var reader = cmd.ExecuteReader())
{
while (reader.Read())
{
DirectoryFile file = new DirectoryFile();
file.UserId = username;
file.Directory = true;
file.Path = (String)reader["path"];
file.Path = file.Path.Substring(0, file.Path.LastIndexOf('\\'));
DateTime prefix = (DateTime)reader["creation_time"];
file.Fullname = (String)prefix.ToString("dd/MM/yyyyTHH:ss") + "_" + (String)reader["path"];
file.LastModificationTime = (DateTime)reader["creation_time"];
ds.Files.Add(file.Fullname, file);
}
}
}
}
return ds;
}
catch (SQLiteException) { return null; }
}
public static DirectoryStatus getSnapshotFilesOfDirectory(String directory, String username, DateTime creationTime)
{
DirectoryStatus ds = new DirectoryStatus();
ds.FolderPath = directory;
ds.Username = username;
try
{
using (var con = new SQLiteConnection(connectionString))
{
con.Open();
using (var cmd = con.CreateCommand())
{
int len = directory.Length;
cmd.CommandText = @"select * from snapshots where user_id = @id"
+ " and path = @dir and creation_time = @date;";
cmd.Parameters.AddWithValue("@id", username);
cmd.Parameters.AddWithValue("@dir", directory + "\\");
cmd.Parameters.AddWithValue("@date", creationTime.ToString(date_format));
using (var reader = cmd.ExecuteReader())
{
while (reader.Read())
{
DirectoryFile file = new DirectoryFile();
file.UserId = username;
file.Directory = (Boolean)reader["directory"];
file.Path = (String)reader["path"];
file.Path = file.Path.Substring(0, file.Path.LastIndexOf('\\'));
file.Filename = (String)reader["filename"];
file.Deleted = (Boolean)reader["deleted"];
file.LastModificationTime = (DateTime)reader["last_mod_time"];
if (!file.Directory)
{
file.Id = (Int64)reader["file_id"];
file.Checksum = (String)reader["checksum"];
}
file.Fullname = Path.Combine(file.Path, file.Filename);
ds.Files.Add(file.Fullname, file);
}
}
}
}
return ds;
}
catch (SQLiteException) { return ds; }
}
private void OnRenamed(object source, RenamedEventArgs e)
{
try
{
//if from .doc -> ~ ignore
//if from ~->.doc changed
if (Directory.Exists(e.FullPath))
{
// a directory is renamed
lock (this)
{
client.renameDirectory(e.OldFullPath, e.FullPath);
}
}
if (File.Exists(e.FullPath))
{
// a file is renamed
FileInfo fi_old = new FileInfo(e.OldFullPath);
FileInfo fi_new = new FileInfo(e.FullPath);
if ((fi_old.Name[0].Equals('~') && !fi_new.Name[0].Equals('~')) ||
(fi_old.Extension.Equals(".tmp") && !fi_new.Name[0].Equals('~')) ||
(fi_old.Extension.Equals("") && !fi_new.Name[0].Equals('~')) ||
(fi_old.Name[0].Equals('~') && !fi_new.Extension.Equals("tmp")) ||
(fi_old.Extension.Equals(".tmp") && !fi_new.Extension.Equals("tmp")) ||
(fi_old.Extension.Equals("") && !fi_new.Extension.Equals("tmp")) ||
(fi_old.Name[0].Equals('~') && !fi_new.Extension.Equals("")) ||
(fi_old.Extension.Equals(".tmp") && !fi_new.Extension.Equals("")) ||
(fi_old.Extension.Equals("") && !fi_new.Extension.Equals("")))
{
//file Microsoft changed
lock (this)
{
DirectoryFile file = new DirectoryFile();
file.Filename = fi_new.Name;
file.Fullname = fi_new.FullName;
file.Path = fi_new.DirectoryName;
file.UserId = client.UserId;
file.LastModificationTime = fi_new.LastWriteTime;
file.Length = fi_new.Length;
client.updateFile(file, true);
}
}
else
{
if (!fi_new.Name[0].Equals('~') && !fi_new.Name[0].Equals('$') && !fi_new.Name[0].Equals('.') &&
!fi_new.Extension.Equals(".tmp") && !fi_new.Extension.Equals(".TMP") && !fi_new.Extension.Equals(""))
{
lock (this)
{
client.renameFile(fi_old.Name, fi_new.Name, fi_old.DirectoryName);
}
}
}
}
}
catch (Exception) { return; }
}
public int getAllSnapshots(DirectoryStatus ds)
{
try
{
Socket s = tcpClient.Client;
byte[] command = BitConverter.GetBytes((UInt32)Networking.CONNECTION_CODES.GET_SNAP);
s.Send(command);
byte[] recvBuf = Networking.my_recv(4, s);
if (recvBuf == null)
return -1;
Int32 snapToRecv = BitConverter.ToInt32(recvBuf, 0);
for (int i = 0; i < snapToRecv; i++)
{
DirectoryFile file = new DirectoryFile();
file.Directory = true;
file.UserId = userId;
recvBuf = Networking.my_recv(4, s);
if (recvBuf == null)
return -1;
byte[] encryptedData = Networking.my_recv(BitConverter.ToInt32(recvBuf, 0), s);
if (encryptedData == null)
return -1;
String path = Encoding.UTF8.GetString(Security.AESDecrypt(aesKey, encryptedData));
recvBuf = Networking.my_recv(8, s);
if (recvBuf == null)
return -1;
DateTime lastModTime = DateTime.FromBinary(BitConverter.ToInt64(recvBuf, 0));
file.Path = path;
file.LastModificationTime = lastModTime;
file.Fullname = lastModTime.ToString("dd/MM/yyyyTHH:ss") + "_" + path;
ds.Files.Add(file.Fullname, file);
}
return snapToRecv;
}
catch (SocketException)
{
return -1;
}
}
public static DirectoryStatus getPreviousVersion(String path, String username, DateTime date)
{
DirectoryStatus ds = new DirectoryStatus();
ds.FolderPath = path;
ds.Username = username;
try
{
using (var con = new SQLiteConnection(connectionString))
{
con.Open();
using (var cmd = con.CreateCommand())
{
cmd.CommandText = @"select path,filename,file_id,last_mod_time,content"
+ " from files where user_id = @id"
+ " and path = @dir and filename = @filename"
+ " and last_mod_time < @date;";
cmd.Parameters.AddWithValue("@id", username);
cmd.Parameters.AddWithValue("@dir", Path.GetDirectoryName(path) + "\\");
cmd.Parameters.AddWithValue("@filename", Path.GetFileName(path));
cmd.Parameters.AddWithValue("@date", date.ToString(date_format));
using (var reader = cmd.ExecuteReader())
{
while (reader.Read())
{
DirectoryFile file = new DirectoryFile();
file.UserId = username;
file.Path = (String)reader["path"];
file.Path = file.Path.Substring(0, file.Path.LastIndexOf('\\'));
file.Filename = (String)reader["filename"];
file.Id = (Int64)reader["file_id"];
file.Checksum = Security.CalculateMD5Hash((byte[])reader["content"]);
file.LastModificationTime = (DateTime)reader["last_mod_time"];
file.Deleted = true;
file.Fullname = Path.Combine(file.Path, file.Filename);
ds.Files.Add(file.NameVersion, file);
}
}
}
}
return ds;
}
catch (SQLiteException) { return ds; }
}
private void OnCreated(object source, FileSystemEventArgs e)
{
try
{
if (Directory.Exists(e.FullPath))
{
//directory
lock (this)
{
DirectoryFile file = new DirectoryFile();
file.Directory = true;
file.Filename = Path.GetFileName(e.FullPath);
file.Fullname = e.FullPath;
file.LastModificationTime = Directory.GetCreationTime(e.FullPath);
file.Path = Path.GetDirectoryName(e.FullPath);
file.UserId = client.UserId;
client.addFile(file, true);
}
}
else
{
//file
lock (this)
{
FileInfo info = new FileInfo(e.FullPath);
if (!info.Name[0].Equals('~') && !info.Name[0].Equals('$') &&
!info.Name[0].Equals('.') && !info.Extension.Equals(".tmp") &&
!info.Extension.Equals(".TMP") && !info.Extension.Equals(""))
{
DirectoryFile file = new DirectoryFile();
file.Directory = false;
file.Filename = info.Name;
file.Fullname = info.FullName;
file.LastModificationTime = info.LastWriteTime;
file.Path = info.DirectoryName;
file.UserId = client.UserId;
client.addFile(file, true);
}
}
}
}
catch (Exception) { return; }
}
public int getPreviousVersions(DirectoryStatus dir, String path)
{
try
{
Socket s = tcpClient.Client;
byte[] command = BitConverter.GetBytes((UInt32)Networking.CONNECTION_CODES.PREV);
s.Send(command);
byte[] buf = Security.AESEncrypt(aesKey, Encoding.UTF8.GetBytes(path));
s.Send(BitConverter.GetBytes(buf.Length));
s.Send(buf);
long date = File.GetLastWriteTime(path).ToBinary();
buf = BitConverter.GetBytes(date);
s.Send(buf);
command = Networking.my_recv(4, tcpClient.Client);
if (command != null && (
((Networking.CONNECTION_CODES)BitConverter.ToUInt32(command, 0) == Networking.CONNECTION_CODES.OK)))
{
byte[] recvBuf = Networking.my_recv(4, s);
if (recvBuf == null)
return -1;
Int32 filesInfoToRecv = BitConverter.ToInt32(recvBuf, 0);
for (int i = 0; i < filesInfoToRecv; i++)
{
DirectoryFile file = new DirectoryFile();
recvBuf = Networking.my_recv(8, s);
if (recvBuf == null)
return -1;
DateTime lastModTime = DateTime.FromBinary(BitConverter.ToInt64(recvBuf, 0));
recvBuf = Networking.my_recv(8, s);
if (recvBuf == null)
return -1;
Int64 id = BitConverter.ToInt64(recvBuf, 0);
byte[] encryptedData = Networking.my_recv(48, s);
if (encryptedData == null)
return -1;
String checksum = Encoding.UTF8.GetString(Security.AESDecrypt(aesKey, encryptedData));
file.Checksum = checksum;
file.Id = id;
file.Deleted = true;
file.UserId = userId;
file.Filename = Path.GetFileName(path);
file.Path = Path.GetDirectoryName(path);
file.LastModificationTime = lastModTime;
file.Fullname = Path.Combine(file.Path, file.Filename);
dir.Files.Add(file.NameVersion, file);
}
return filesInfoToRecv;
}
}
catch (SocketException) { return -1; }
return -1;
}
public FileListItem(DirectoryFile file) : base(file)
{
btnContent = (base.Directory || base.Deleted) ? "Restore" : "See older versions";
}
public void addFile(DirectoryFile file, bool openSocket)
{
Socket s = null;
try
{
if (keepAlive())
{
TcpClient client = new TcpClient();
client.Connect(this.server);
s = client.Client;
s.ReceiveTimeout = Networking.TIME_OUT_SHORT;
s.SendTimeout = Networking.TIME_OUT_SHORT;
//using client credential with a new socket
byte[] command = BitConverter.GetBytes((UInt32)Networking.CONNECTION_CODES.SESSION_WATCH);
s.Send(command);
byte[] session = BitConverter.GetBytes(this.sessionId);
byte[] rand = Networking.my_recv(8, s);
SHA1CryptoServiceProvider sha = new SHA1CryptoServiceProvider();
byte[] hash = sha.ComputeHash(Security.XOR(rand, session));
s.Send(hash);
command = Networking.my_recv(4, s);
if (command != null && (
((Networking.CONNECTION_CODES)BitConverter.ToUInt32(command, 0) == Networking.CONNECTION_CODES.OK)))
{
//session is not expired: ok
command = BitConverter.GetBytes((UInt32)Networking.CONNECTION_CODES.FS_SYNCH);
s.Send(command);
command = BitConverter.GetBytes((UInt32)Networking.CONNECTION_CODES.ADD);
s.Send(command);
byte[] encryptedData = Security.AESEncrypt(aesKey, file.Filename);
byte[] buf = BitConverter.GetBytes(encryptedData.Length);
s.Send(buf);
s.Send(encryptedData);
encryptedData = Security.AESEncrypt(aesKey, file.Path);
buf = BitConverter.GetBytes(encryptedData.Length);
s.Send(buf);
s.Send(encryptedData);
buf = BitConverter.GetBytes(file.LastModificationTime.ToBinary());
s.Send(buf);
if (file.Directory)
{
command = BitConverter.GetBytes((UInt32)Networking.CONNECTION_CODES.DIR);
s.Send(command);
command = BitConverter.GetBytes((UInt32)Networking.CONNECTION_CODES.END_SYNCH);
s.Send(command);
}
else
{
command = BitConverter.GetBytes((UInt32)Networking.CONNECTION_CODES.FILE);
s.Send(command);
command = Networking.my_recv(4, s);
if (command != null && (
((Networking.CONNECTION_CODES)BitConverter.ToUInt32(command, 0) == Networking.CONNECTION_CODES.OK)))
{
buf = BitConverter.GetBytes(file.Length);
s.Send(buf);
using (FileStream reader = File.OpenRead(file.Fullname))
{
long left = file.Length;
while (left > 0)
{
int dim = (left > 4096) ? 4096 : (int)left;
buf = new byte[dim];
reader.Read(buf, 0, dim);
encryptedData = Security.AESEncrypt(aesKey, buf);
s.Send(encryptedData);
//s.Send(buf);
left -= dim;
}
command = BitConverter.GetBytes((UInt32)Networking.CONNECTION_CODES.END_SYNCH);
s.Send(command);
}
}
}
}
}
}
catch (SocketException) { return; }
finally
{
if (s != null)
s.Close();
}
}
private void addFile(DirectoryFile file)
{
try
{
Socket s = tcpClient.Client;
byte[] command = BitConverter.GetBytes((UInt32)Networking.CONNECTION_CODES.ADD);
s.Send(command);
byte[] encryptedData = Security.AESEncrypt(aesKey, file.Filename);
byte[] buf = BitConverter.GetBytes(encryptedData.Length);
s.Send(buf);
s.Send(encryptedData);
encryptedData = Security.AESEncrypt(aesKey, file.Path);
buf = BitConverter.GetBytes(encryptedData.Length);
s.Send(buf);
s.Send(encryptedData);
buf = BitConverter.GetBytes(file.LastModificationTime.ToBinary());
s.Send(buf);
if (file.Directory)
{
command = BitConverter.GetBytes((UInt32)Networking.CONNECTION_CODES.DIR);
s.Send(command);
}
else
{
command = BitConverter.GetBytes((UInt32)Networking.CONNECTION_CODES.FILE);
s.Send(command);
command = Networking.my_recv(4, tcpClient.Client);
if (command != null && (
((Networking.CONNECTION_CODES)BitConverter.ToUInt32(command, 0) == Networking.CONNECTION_CODES.OK)))
{
buf = BitConverter.GetBytes(file.Length);
s.Send(buf);
using (FileStream reader = File.OpenRead(file.Fullname))
{
long left = file.Length;
while (left > 0)
{
int dim = (left > 4096) ? 4096 : (int)left;
buf = new byte[dim];
reader.Read(buf, 0, dim);
encryptedData = Security.AESEncrypt(aesKey, buf);
s.Send(encryptedData);
//s.Send(buf);
left -= dim;
}
}
}
}
}
catch (SocketException se) { throw se; }
}
private void deleteFile(DirectoryFile file)
{
try
{
Socket s = tcpClient.Client;
byte[] command = BitConverter.GetBytes((UInt32)Networking.CONNECTION_CODES.DEL);
s.Send(command);
byte[] encryptedData = Security.AESEncrypt(aesKey, file.Filename);
byte[] buf = BitConverter.GetBytes(encryptedData.Length);
s.Send(buf);
s.Send(encryptedData);
encryptedData = Security.AESEncrypt(aesKey, file.Path);
buf = BitConverter.GetBytes(encryptedData.Length);
s.Send(buf);
s.Send(encryptedData);
buf = BitConverter.GetBytes(file.LastModificationTime.ToBinary());
s.Send(buf);
if (file.Directory)
{
command = BitConverter.GetBytes((UInt32)Networking.CONNECTION_CODES.DIR);
s.Send(command);
}
else
{
command = BitConverter.GetBytes((UInt32)Networking.CONNECTION_CODES.FILE);
s.Send(command);
}
}
catch (SocketException se) { throw se; }
}
public void fillDirectoryStatus(DirectoryStatus local, String directory)
{
try
{
var entries = Directory.EnumerateFileSystemEntries(directory);
foreach (var path in entries)
{
if (File.Exists(path))
{
//entry is a file
FileInfo info = new FileInfo(path);
DirectoryFile file = new DirectoryFile();
file.Length = info.Length;
file.UserId = userId;
file.LastModificationTime = info.LastWriteTime;
file.Filename = info.Name;
file.Path = info.DirectoryName;
file.Fullname = info.FullName;
file.Checksum = getChecksum(info);
local.Files.Add(file.Fullname, file);
}
if (Directory.Exists(path))
{
//entry is a directory
DirectoryFile file = new DirectoryFile();
DirectoryInfo info = new DirectoryInfo(path);
file.UserId = userId;
file.Directory = true;
file.Filename = info.Name;
file.Path = info.Parent.FullName;
file.Fullname = info.FullName;
file.LastModificationTime = info.LastWriteTime;
local.Files.Add(file.Fullname, file);
fillDirectoryStatus(local, info.FullName);
}
}
}
catch (UnauthorizedAccessException uae) { throw uae; }
catch (IOException ioe) { throw ioe; }
}
public Int64 getDirectoryInfo(DirectoryStatus current, String directory)
{
try
{
Socket s = tcpClient.Client;
byte[] command = BitConverter.GetBytes((UInt32)Networking.CONNECTION_CODES.DIR);
s.Send(command);
byte[] buf = Security.AESEncrypt(aesKey, Encoding.UTF8.GetBytes(directory));
s.Send(BitConverter.GetBytes(buf.Length));
s.Send(buf);
command = Networking.my_recv(4, tcpClient.Client);
if (command != null && (
((Networking.CONNECTION_CODES)BitConverter.ToUInt32(command, 0) == Networking.CONNECTION_CODES.OK)))
{
byte[] recvBuf = Networking.my_recv(4, s);
if (recvBuf == null)
return -1;
Int32 filesInfoToRecv = BitConverter.ToInt32(recvBuf, 0);
for (int i = 0; i < filesInfoToRecv; i++)
{
DirectoryFile file = new DirectoryFile();
recvBuf = Networking.my_recv(4, s);
if (recvBuf == null)
return -1;
int len = BitConverter.ToInt32(recvBuf, 0);
byte[] encryptedData = Networking.my_recv(len, s);
if (encryptedData == null)
return -1;
String path = Encoding.UTF8.GetString(Security.AESDecrypt(aesKey, encryptedData));
recvBuf = Networking.my_recv(4, s);
if (recvBuf == null)
return -1;
len = BitConverter.ToInt32(recvBuf, 0);
encryptedData = Networking.my_recv(len, s);
if (encryptedData == null)
return -1;
String filename = Encoding.UTF8.GetString(Security.AESDecrypt(aesKey, encryptedData));
recvBuf = Networking.my_recv(8, s);
if (recvBuf == null)
return -1;
DateTime lastModTime = DateTime.FromBinary(BitConverter.ToInt64(recvBuf, 0));
command = Networking.my_recv(4, s);
if (command == null)
return -1;
if ((Networking.CONNECTION_CODES)BitConverter.ToUInt32(command, 0) == Networking.CONNECTION_CODES.DEL)
{
file.Deleted = true;
}
command = Networking.my_recv(4, s);
if (command == null)
return -1;
if ((Networking.CONNECTION_CODES)BitConverter.ToUInt32(command, 0) == Networking.CONNECTION_CODES.DIR)
{
file.Directory = true;
}
if ((Networking.CONNECTION_CODES)BitConverter.ToUInt32(command, 0) == Networking.CONNECTION_CODES.FILE)
{
recvBuf = Networking.my_recv(8, s);
if (recvBuf == null)
return -1;
file.Id = BitConverter.ToInt64(recvBuf, 0);
}
file.LastModificationTime = lastModTime;
file.UserId = userId;
file.Filename = filename;
file.Path = path;
file.Fullname = Path.Combine(path, filename);
current.Files.Add(file.Fullname, file);
}
return filesInfoToRecv;
}
}
catch (SocketException) { return -1; }
return -1;
}
/***** END CLEAN DB ******/
public static bool insertFile(SQLiteConnection conn, DirectoryStatus newStatus, String filename, String path, byte[] file, DateTime lastModTime)
{
try
{ /*****DB cleaning******/
if (!cleanDBfiles(conn, newStatus, filename, path)) return false;
/*****END CLEANING******/
using (SQLiteCommand cmd = conn.CreateCommand())
{
cmd.CommandText = @"insert into files (user_id,path,filename,content,last_mod_time) values"
+ " (@user, @path, @filename, @content, @lastModTime);";
cmd.Parameters.AddWithValue("@user", newStatus.Username);
cmd.Parameters.AddWithValue("@path", path + "\\");
cmd.Parameters.AddWithValue("@filename", filename);
cmd.Parameters.AddWithValue("@content", file);
cmd.Parameters.AddWithValue("@lastModTime", lastModTime.ToString(date_format));
cmd.ExecuteNonQuery();
}
Int64? fileId = -1;
using (SQLiteCommand cmd = conn.CreateCommand())
{
cmd.CommandText = "select file_id from files where user_id = @user and path = @path and"
+ " filename = @filename and last_mod_time = @lastModTime;";
cmd.Parameters.AddWithValue("@user", newStatus.Username);
cmd.Parameters.AddWithValue("@path", path + "\\");
cmd.Parameters.AddWithValue("@filename", filename);
cmd.Parameters.AddWithValue("@lastModTime", lastModTime.ToString(date_format));
using (var reader = cmd.ExecuteReader())
{
while (reader.Read())
{
fileId = (Int64?)reader[0];
}
}
}
if (fileId == null || fileId <= 0)
return false;
String checksum = Security.CalculateMD5Hash(file);
using (SQLiteCommand cmd = conn.CreateCommand())
{
cmd.CommandText = @"insert into snapshots (user_id,file_id,creation_time,checksum,path,last_mod_time,filename) values"
+ " (@user, @fileId, @creationTime, @checksum, @path, @lastModTime, @filename);";
cmd.Parameters.AddWithValue("@user", newStatus.Username);
cmd.Parameters.AddWithValue("@fileId", fileId);
cmd.Parameters.AddWithValue("@creationTime", newStatus.CreationTime.ToString(date_format));
cmd.Parameters.AddWithValue("@checksum", checksum);
cmd.Parameters.AddWithValue("@lastModTime", lastModTime.ToString(date_format));
cmd.Parameters.AddWithValue("@path", path + "\\");
cmd.Parameters.AddWithValue("@filename", filename);
cmd.ExecuteNonQuery();
}
//add file
DirectoryFile dirFile = new DirectoryFile((Int64)fileId, path, filename, newStatus.Username, checksum, lastModTime);
newStatus.Files.Add(dirFile.Fullname, dirFile);
return true;
}
catch (SQLiteException) { return false;}
}
public DirectoryFile clone()
{
DirectoryFile file = new DirectoryFile();
file.Deleted = (deleted) ? true : false;
file.Directory = (directory) ? true : false;
file.Filename = (filename == null) ? null : String.Copy(filename);
file.Fullname = (fullname == null) ? null : String.Copy(fullname);
file.Id = id;
file.Length = length;
file.Path = (path == null) ? null : String.Copy(path);
file.LastModificationTime = lastModificationTime;
file.UserId = (userId == null) ? null : String.Copy(userId);
file.Checksum = (checksum == null) ? null : String.Copy(checksum);
return file;
}
public static bool deleteFile(SQLiteConnection conn, DirectoryFile file, DirectoryStatus newStatus)
{
try
{
using (SQLiteCommand cmd = conn.CreateCommand())
{
cmd.CommandText = @"insert into snapshots (user_id,file_id,creation_time,checksum,path,"
+ " filename,last_mod_time,deleted) values (@user, @fileId, @creationTime, @checksum, @path,"
+ " @filename, @lastModTime, @deleted);";
cmd.Parameters.AddWithValue("@user", file.UserId);
cmd.Parameters.AddWithValue("@fileId", file.Id);
cmd.Parameters.AddWithValue("@creationTime", newStatus.CreationTime.ToString(date_format));
cmd.Parameters.AddWithValue("@checksum", file.Checksum);
cmd.Parameters.AddWithValue("@path", file.Path + "\\");
cmd.Parameters.AddWithValue("@filename", file.Filename);
cmd.Parameters.AddWithValue("@lastModTime", file.LastModificationTime.ToString(date_format));
cmd.Parameters.AddWithValue("@deleted", true);
cmd.ExecuteNonQuery();
}
DirectoryFile dirFile = new DirectoryFile(file.Id, file.Path, file.Filename, file.UserId, file.Checksum, file.LastModificationTime);
file.Deleted = true;
newStatus.Files.Add(dirFile.Fullname, dirFile);
return true;
}
catch (SQLiteException) { return false; }
}
public SnapshotItem(DirectoryFile file) : base(file)
{
}
public static DirectoryStatus getLastSnapshot(String directory, String username)
{
DirectoryStatus ds = new DirectoryStatus();
ds.FolderPath = directory;
ds.Username = username;
directory += "\\";
String date = null;
try
{
using (var con = new SQLiteConnection(connectionString))
{
con.Open();
if (!cleanDBsnapshots(con, username, directory)) return ds;
using (var cmd = con.CreateCommand())
{
int len = directory.Length;
cmd.CommandText = @"select max(creation_time) from snapshots where"
+ " user_id = @id and substr(path,1," + len + ") = @dir;";
cmd.Parameters.AddWithValue("@id", username);
cmd.Parameters.AddWithValue("@dir", directory);
object val = cmd.ExecuteScalar();
date = (val == System.DBNull.Value) ? null : (String)val;
}
if (date != null)
{
ds.CreationTime = DateTime.ParseExact(date, date_format, null);
using (var cmd = con.CreateCommand())
{
int len = directory.Length;
cmd.CommandText = @"select * from snapshots where user_id = @id"
+ " and substr(path,1," + len + ") = @dir"
+ " and creation_time = @date;";
cmd.Parameters.AddWithValue("@id", username);
cmd.Parameters.AddWithValue("@dir", directory);
cmd.Parameters.AddWithValue("@date", date);
using (var reader = cmd.ExecuteReader())
{
while (reader.Read())
{
DirectoryFile file = new DirectoryFile();
file.UserId = username;
file.Directory = (Boolean)reader["directory"];
file.Path = (String)reader["path"];
file.Path = file.Path.Substring(0,file.Path.LastIndexOf('\\'));
file.Filename = (String)reader["filename"];
file.Deleted = (Boolean)reader["deleted"];
file.LastModificationTime = (DateTime)reader["last_mod_time"];
if (!file.Directory)
{
file.Id = (Int64)reader["file_id"];
file.Checksum = (String)reader["checksum"];
}
file.Fullname = Path.Combine(file.Path, file.Filename);
ds.Files.Add(file.Fullname, file);
}
}
}
}
}
return ds;
}
catch (SQLiteException) { return null; }
}
public DirectoryItem(DirectoryFile file) : base(file)
{
fullname = System.IO.Path.Combine(base.Path, base.Filename);
isOnDisk = (base.Deleted) ? false : true;
}
private void OnChanged(object source, FileSystemEventArgs e)
{
try
{
lock (this)
{
if (File.Exists(e.FullPath))
{
DateTime lastWriteTime = File.GetLastWriteTime(e.FullPath);
if (lastWriteTime != lastRead)
{
//exclude files started from '~','$' and '.'(hidden files) and without extensions
FileInfo info = new FileInfo(e.FullPath);
if (!info.Name[0].Equals('~') && !info.Name[0].Equals('$') &&
!info.Name[0].Equals('.') && !info.Extension.Equals(".tmp") &&
!info.Extension.Equals(".TMP") && !info.Extension.Equals(""))
{
//file
DirectoryFile file = new DirectoryFile();
file.Filename = info.Name;
file.Fullname = info.FullName;
file.Path = info.DirectoryName;
file.UserId = client.UserId;
file.LastModificationTime = info.LastWriteTime;
file.Length = info.Length;
client.updateFile(file, true);
}
lastRead = lastWriteTime;
}
}
}
}
catch (Exception) { return; }
}
public FileVersionItem(DirectoryFile file) : base(file)
{
checksum = file.Checksum;
}
// Define the event handlers.
private void OnDeleted(object source, FileSystemEventArgs e)
{
DirectoryFile file = new DirectoryFile();
file.Fullname = e.FullPath;
file.Filename = Path.GetFileName(e.FullPath);
file.Path = Path.GetDirectoryName(e.FullPath);
file.UserId = client.UserId;
if (!Path.HasExtension(e.FullPath))
{
file.Directory = true;
//directory: a file with no extension is treated like a directory
client.deleteFile(file, true);
}
else
{
//file
file.Directory = false;
if ( !Path.GetFileName(e.FullPath)[0].Equals('~') && !Path.GetFileName(e.FullPath)[0].Equals('$') &&
!Path.GetFileName(e.FullPath)[0].Equals('.') && !Path.GetExtension(e.FullPath).Equals(".tmp") &&
!Path.GetExtension(e.FullPath).Equals(".TMP") )
{
client.deleteFile(file, true);
}
}
}
public ListItem(DirectoryFile file)
{
directory = file.Directory;
filename = file.Filename;
path = file.Path;
deleted = file.Deleted;
id = file.Id;
lastModTime = file.LastModificationTime.ToString("ddd, d MMM yyyy HH:mm:ss");
}