public MessageViewModel(UserViewModel sender, string fileName, FileDescription fileDescription, RoomViewModel room)
: this(Room.SpecificMessageId, room, true)
{
NotifierContext.DownloadProgress += ClientDownloadProgress;
NotifierContext.PostedFileDeleted += ClientPostedFileDeleted;
Sender = sender;
File = fileDescription;
Progress = 0;
Title = string.Format(From, DateTime.Now.ToString(TimeFormat));
string sizeDim = string.Empty;
float size = 0;
if (fileDescription.Size < 1024)
{
sizeDim = ByteStr;
size = fileDescription.Size;
}
if (fileDescription.Size >= 1024 && fileDescription.Size < 1024 * 1024)
{
sizeDim = KByteStr;
size = fileDescription.Size / 1024.0f;
}
if (fileDescription.Size >= 1024 * 1024)
{
sizeDim = MByteStr;
size = fileDescription.Size / (1024.0f * 1024.0f);
}
Text = fileName + string.Format(SizeFormat, size, sizeDim);
Type = MessageType.File;
DownloadFileCommand = new Command(DownloadFile, Obj => ClientModel.Client != null);
}
public void DownloadFile(string path, string roomName, FileDescription file)
{
ClientModel.API.DownloadFile(path, roomName, file);
}
public void RemoveFileFromRoom(string roomName, FileDescription file)
{
ClientModel.API.RemoveFileFromRoom(roomName, file);
}
public void AddFileMessage(UserViewModel sender, FileDescription file)
{
AddMessage(new MessageViewModel(sender, file.Name, file, this));
}
public void CancelDownloading(FileDescription file, bool leaveLoadedPart)
{
ClientModel.API.CancelDownloading(file, leaveLoadedPart);
}
public bool Equals(FileDescription file)
{
if (file == null)
return false;
return owner.Equals(file.owner) && id.Equals(file.id);
}
public void AddFileToRoom(string roomName, string path)
{
if (string.IsNullOrEmpty(roomName))
throw new ArgumentException("roomName");
if (string.IsNullOrEmpty(path))
throw new ArgumentException("fileName");
var info = new FileInfo(path);
if (!info.Exists)
return;
using (var client = ClientModel.Get())
{
var postedFile = client.PostedFiles.FirstOrDefault(posted =>
posted.File.Owner.Equals(client.User)
&& string.Equals(posted.ReadStream.Name, path)
&& string.Equals(posted.RoomName, roomName));
// Отправляем на сервер уже созданный файл (нет необходимости создавать новый id)
if (postedFile != null)
{
var oldSendingContent = new ServerAddFileToRoomCommand.MessageContent { RoomName = roomName, File = postedFile.File };
ClientModel.Client.SendMessage(ServerAddFileToRoomCommand.CommandId, oldSendingContent);
return;
}
// Создаем новый файл
var id = 0;
while (client.PostedFiles.Exists(postFile => postFile.File.Id == id))
id = idCreator.Next(int.MinValue, int.MaxValue);
var file = new FileDescription(client.User, info.Length, Path.GetFileName(path), id);
client.PostedFiles.Add(new PostedFile
{
File = file,
RoomName = roomName,
ReadStream = new FileStream(path, FileMode.Open, FileAccess.Read)
});
var newSendingContent = new ServerAddFileToRoomCommand.MessageContent { RoomName = roomName, File = file };
ClientModel.Client.SendMessage(ServerAddFileToRoomCommand.CommandId, newSendingContent);
}
}
public void RemoveFileFromRoom(string roomName, FileDescription file)
{
if (string.IsNullOrEmpty(roomName))
throw new ArgumentException("roomName");
if (file == null)
throw new ArgumentNullException("file");
using (var client = ClientModel.Get())
{
var postedFile = client.PostedFiles.FirstOrDefault(current => current.File.Equals(file));
if (postedFile == null)
return;
client.PostedFiles.Remove(postedFile);
postedFile.Dispose();
}
var sendingContent = new ServerRemoveFileFromRoomCommand.MessageContent { RoomName = roomName, File = file };
ClientModel.Client.SendMessage(ServerRemoveFileFromRoomCommand.CommandId, sendingContent);
}
public void DownloadFile(string path, string roomName, FileDescription file)
{
if (string.IsNullOrEmpty(roomName))
throw new ArgumentException("roomName");
if (string.IsNullOrEmpty(path))
throw new ArgumentException("path");
if (file == null)
throw new ArgumentNullException("file");
if (File.Exists(path))
throw new ArgumentException("Файл уже существует");
using (var client = ClientModel.Get())
{
if (client.DownloadingFiles.Exists(dFile => dFile.File.Equals(file)))
throw new ModelException(ErrorCode.FileAlreadyDownloading, file);
if (client.User.Equals(file.Owner))
throw new ArgumentException("Нельзя скачивать свой файл.");
client.DownloadingFiles.Add(new DownloadingFile { File = file, FullName = path });
}
var sendingContent = new ClientReadFilePartCommand.MessageContent
{
File = file,
Length = AsyncClient.DefaultFilePartSize,
RoomName = roomName,
StartPartPosition = 0,
};
ClientModel.Peer.SendMessage(file.Owner.Nick, ClientReadFilePartCommand.CommandId, sendingContent);
}
public void CancelDownloading(FileDescription file, bool leaveLoadedPart = true)
{
if (file == null)
throw new ArgumentNullException("file");
using (var client = ClientModel.Get())
{
var downloadingFile = client.DownloadingFiles.FirstOrDefault(current => current.File.Equals(file));
if (downloadingFile == null)
return;
var filePath = downloadingFile.FullName;
downloadingFile.Dispose();
client.DownloadingFiles.Remove(downloadingFile);
if (File.Exists(filePath) && !leaveLoadedPart)
File.Delete(filePath);
}
}
