//Получение списка файлов в директории
public static List <string> PrintFiles(string path, string sessionId)
{
FileSystemContext ctx = new FileSystemContext();
List <string> result = new List <string>();
MdDirectory dir = PathExist(path);
ctx.Files.Where(f => f.IdDirectory == dir.Id).ToList().ForEach(f => {
string lockedBy = "";
if (ctx.Locks.Where(l => l.IdFile == f.Id).Count() > 0)
{
lockedBy = "locked by ";
ctx.Locks.Where(l => l.IdFile == f.Id).ToList().ForEach(l =>
{
if (l.User == FileServiceSession.GetUser(sessionId))
{
lockedBy += "Me,";
}
else
{
lockedBy += $"{l.User},";
}
});
lockedBy = $"[{lockedBy.Trim(',')}]";
}
result.Add($"{dir.Path}{f.FileName}{lockedBy}");
});
return(result);
}
//Разблокировка файла
public static string UnlockFile(string sessionId, string path, string filename)
{
string user = FileServiceSession.GetUser(sessionId);
string localPath = path;
FileSystemContext ctx = new FileSystemContext();
if (path == "")
{
localPath = GetPath(sessionId);
}
string fullFilename = $"{localPath}{filename}";
MdDirectory localDir = PathExist(localPath);
if (ctx.Files.Where(f => f.IdDirectory == localDir.Id && f.FileName == filename).Count() > 0)
{
MdFile localFile = ctx.Files.Where(f => f.IdDirectory == localDir.Id && f.FileName == filename).FirstOrDefault();
if (ctx.Locks.Where(l => l.IdFile == localFile.Id && l.User == user).Count() > 0)
{
ctx.Locks.Remove(ctx.Locks.Where(l => l.IdFile == localFile.Id && l.User == user).FirstOrDefault());
ctx.SaveChanges();
}
return($"{localPath}{filename}");
}
else
{
throw new FileServiceCommandExeption($"{filename} not exist in {localPath}");
}
}
public string Run(string sessionId, params string[] args)
{
if (args.Count() > 1)
{
FileServiceSession.SetUser(sessionId, args[1]);
VirtualFileSystem.SetPath(sessionId, "C:");
return(FileServiceSession.GetUser(sessionId));
}
else
{
throw new FileServiceCommandExeption("Missed user name");
}
}
//Проверка файла на наличие блокировки
private static void CheckLock(string sessionId, FileSystemContext ctx, MdFile filename)
{
if (ctx.Locks.Where(l => l.IdFile == filename.Id).Count() > 0)
{
string user = FileServiceSession.GetUser(sessionId);
MdDirectory dir = ctx.Directories.Where(d => d.Id == filename.IdDirectory).FirstOrDefault();
string error = $"{dir.Path}{filename.FileName} locked by ";
ctx.Locks.Where(l => l.IdFile == filename.Id
).ToList().ForEach(l => {
if (user == l.User)
{
error += "Me,";
}
else
{
error += $"{l.User},";
}
});
throw new FileServiceCommandExeption(error.Trim(','));
}
}
public string RunCommand(string cmd)
{
string fsCommand = cmd.Split(' ')[0];
string[] args = cmd.Split(' ').Skip(1).ToArray();
try
{
IFileServiceCommand fsCommandObj = FileServiceCommands.NewCommand(fsCommand.ToLower());
string answer = fsCommandObj.Run(OperationContext.Current.SessionId, args);
OperationContext.Current.GetCallbackChannel <IFileServiceCallback>().Notify(FileServiceSession.GetUser(OperationContext.Current.SessionId) + " " + fsCommandObj.Notify(args));
return(answer);
}
catch (FileServiceCommandExeption e)
{
return($"Error: {e.Message}");
}
finally
{
if (Monitor.IsEntered(VirtualFileSystem.Lock))
{
Monitor.Exit(VirtualFileSystem.Lock);
}
}
}
public void Logout()
{
FileServiceSession.DeleteUser(OperationContext.Current.SessionId);
}