public DataTable List(string username, string token)
{
SQLiteConn conn = SQLiteConn.Instance;
CheckToken(username, token);
DataTable dt = conn.ListFiles(username);
return(dt);
}
public void Register(string username, string password)
{
SQLiteConn conn = SQLiteConn.Instance;
if (conn.QueryUser(username))
{
throw new FaultException("Username already exists.");
}
conn.InsertUser(username, password);
}
public void Delete(string username, string token, string filename)
{
SQLiteConn conn = SQLiteConn.Instance;
CheckToken(username, token);
if (!conn.QueryFile(username, filename))
{
throw new FaultException("File does not exist.");
}
conn.DeleteFile(username, filename);
}
public void Upload(string username, StoredFile f, string token)
{
SQLiteConn conn = SQLiteConn.Instance;
CheckToken(username, token);
if (conn.QueryFile(username, f.filename))
{
throw new FaultException("File with that name already exsits.");
}
conn.InsertFile(f);
}
private void CheckToken(string username, string token)
{
SQLiteConn conn = SQLiteConn.Instance;
if (!conn.QueryUser(username))
{
throw new FaultException("Username does not exist.");
}
string usertoken = conn.GetToken(username);
if (usertoken != token)
{
throw new FaultException("Bad token.");
}
}
public StoredFile Download(string username, string filename, string token)
{
SQLiteConn conn = SQLiteConn.Instance;
CheckToken(username, token);
if (!conn.QueryFile(username, filename))
{
throw new FaultException("File does not exist.");
}
StoredFile sf = conn.GetFile(username, filename);
return(sf);
//--
}
public string LogIn(string username, string password)
{
SQLiteConn conn = SQLiteConn.Instance;
if (!conn.QueryUser(username, password))
{
throw new FaultException("Wrong password or username does not exist.");
}
string token = Guid.NewGuid().ToString();
conn.SetToken(username, token);
return(token);
}
