private void UserListBox_SelectionChanged(object sender, System.EventArgs e)
{
UserListItem item = this.userListBox.SelectedItem as UserListItem;
LanUser user = item.User;
if (user == null)
{
return;
}
labelUserName.Text = user.NickName;
UserChatControl ucc = item.ChatControl;
if (ucc == null)
{
ucc = new UserChatControl();
ucc.Anchor = AnchorStyles.Left | AnchorStyles.Top | AnchorStyles.Right | AnchorStyles.Bottom;
ucc.User = _user;
ucc.Contacter = user;
ucc.SendMessageEnabled = user.Status != UserStatus.Offline;
ucc.SendMessage += Ucc_SendMessage;
ucc.InitializeLatastMessage(item.WaitDisplayMessages);
//显示到界面后，缓存就清理掉
item.WaitDisplayMessages.Clear();
this.Controls.Add(ucc);
item.ChatControl = ucc;
}
ucc.Location = new Point(this.searchBox.Right, searchBox.Top + 1);
ucc.Size = new Size(this.ClientSize.Width - this.searchBox.Right - 1, this.ClientSize.Height - searchBox.Top - 2);
ucc.BringToFront();
}
private void _user_FileReceiveError(object sender, FileTransportErrorEventArgs args)
{
TransportFile file = args.File;
LanUser user = _user[args.File.MAC];
this.userListBox.SetMessageResult(user.ID, _user.ID, file.ID, false);
}
public long SendFile(LanUser user, string path, bool bImage = false)
{
//发送请求
UdpPacket packet = new UdpPacket();
packet.Address = user.IP;
packet.Port = user.Port;
packet.ToMAC = user.MAC;
packet.Command = UdpPacket.CMD_SEND_FILE_REQUEST | UdpPacket.CMD_OPTION_NEED_RESPONSE;
if (bImage)
{
packet.Command |= UdpPacket.CMD_OPTION_SEND_FILE_IMAGE;
}
packet.FromMAC = this.MAC;
UdpPacketSendFileRequestExtend extend = new UdpPacketSendFileRequestExtend();
extend.EncryptKey = user.SecurityKeys.Public;
extend.File = new LanFile(path);
packet.Extend = extend;
_client.Send(packet);
//保存要发送文件一览
TransportFile file = new TransportFile(packet.ID, user.MAC, user.IP, user.Port, user.SecurityKeys.Public, extend.File);
_fileTransTcpListener.AddTransportFile(file);
return(file.ID);
}
private void UpdateContacter(UserStateChangeEventArgs args)
{
LanUser user = args.User;
if (user.ID == _user.ID)
{
//自己就忽略掉，本身也不显示在list里面
return;
}
userListBox.AddOrUpdateUser(user, args.UpdateState);
}
private void LoadContacters()
{
ContacterMapper mapper = new ContacterMapper();
List <Contacter> cs = mapper.Query();
foreach (Contacter contacter in cs)
{
LanUser user = new LanUser();
user.Contacter = contacter;
_user.Contacters.Add(user);
}
}
private void ReceiveImage(LanUser user, TransportFile file)
{
file.SavePath = LanConfig.Instance.GetTempFileName(".png");
FileTransportTcpClient client = new FileTransportTcpClient(_context);
client.ProgressChanged += ImageReceiveProgressChanged;
client.Completed += new FileTransportEventHandler((sender, args) =>
{
Image image = Image.FromFile(file.SavePath);
ImageReceivedEventArgs stateArgs = new ImageReceivedEventArgs(user, file.ID, image);
ImageReceived(this, stateArgs);
});
client.Error += ImageReceiveError;
client.Receive(file);
}
private void buttonStart_Click(object sender, System.EventArgs e)
{
_user = new LanUser();
_user.NickName = textBoxNN.Text;
_user.UserEntry += _user_UserEntry;
_user.UserExit += _user_UserExit;
_user.UserStateChange += _user_UserStateChange;
_user.Send += _user_Send;
_user.TextMessageReceived += _user_TextMessageReceived;
_user.ImageReceived += _user_ImageReceived;
_user.FileTransportRequested += _user_FileTransportRequested;
_user.FileReceiveProgressChanged += _user_FileTransportProgressChanged;
_user.FileSendProgressChanged += _user_FileSendProgressChanged;
_user.Listen();
buttonStart.Enabled = false;
buttonClose.Enabled = true;
}
private long SendImageCore(LanUser user, Image image, string imagePath)
{
string path;
if (image != null)
{
path = LanConfig.Instance.GetTempFileName(".png");
image.Save(path, ImageFormat.Png);
}
else
{
path = imagePath;
}
long len = LanFile.GetFileLength(path);
if (len > UdpClientEx.UDP_MAX_BUF_SIZE)
{
//图像文件过大的话用文件形式发送
return(SendFile(user, path, true));
}
else
{
UdpPacket packet = new UdpPacket();
packet.Address = user.IP;
packet.Port = user.Port;
packet.ToMAC = user.MAC;
packet.Command = UdpPacket.CMD_SEND_IMAGE | UdpPacket.CMD_OPTION_NEED_RESPONSE;
packet.FromMAC = this.MAC;
UdpPacketImageExtend extend = new UdpPacketImageExtend();
extend.EncryptKey = user.SecurityKeys.Public;
extend.Image = image ?? Image.FromFile(path);
packet.Extend = extend;
_client.Send(packet);
if (image != null)
{
//直接发送图像的话，临时图片就删除
LanFile.Delete(path);
}
return(packet.ID);
}
}
public long SendTextMessage(LanUser user, string text)
{
UdpPacket packet = new UdpPacket();
packet.Address = user.IP;
packet.Port = user.Port;
packet.ToMAC = user.MAC;
packet.Command = UdpPacket.CMD_SEND_TEXT | UdpPacket.CMD_OPTION_NEED_RESPONSE;
packet.FromMAC = this.MAC;
UdpPacketTextExtend extend = new UdpPacketTextExtend();
extend.EncryptKey = user.SecurityKeys.Public;
extend.Text = text;
packet.Extend = extend;
_client.Send(packet);
return(packet.ID);
}
private UpdateState UpdateContacter(UdpPacket packet)
{
UdpPacketStateExtend extend = packet.Extend as UdpPacketStateExtend;
LanUser user = this[packet.FromMAC];
UpdateState updateState = 0;
if ((packet.Command & UdpPacket.CMD_OPTION_STATE_PUBKEY) != 0)
{
user.SecurityKeys.Public = extend.PublicKey;
updateState |= LanIM.UpdateState.PublicKey;
}
if ((packet.Command & UdpPacket.CMD_OPTION_STATE_NICKNAME) != 0)
{
user.NickName = extend.NickName;
updateState |= LanIM.UpdateState.NickName;
}
if ((packet.Command & UdpPacket.CMD_OPTION_STATE_PROFILE_PHOTO) != 0)
{
ProfilePhotoPool.SetPhoto(user.ID, extend.ProfilePhoto);
updateState |= LanIM.UpdateState.Photo;
}
if ((packet.Command & UdpPacket.CMD_OPTION_STATE_STATUS) != 0)
{
user.Status = extend.Status;
updateState |= LanIM.UpdateState.Status;
}
if (user.Port != packet.Port)
{
user.Port = packet.Port;
updateState |= LanIM.UpdateState.Port;
}
if (user.IP != packet.Address)
{
user.IP = packet.Address;
updateState |= LanIM.UpdateState.IP;
}
return(updateState);
}
public LanUser this[string mac]
{
get
{
LanUser user = Contacters.Find((u) =>
{
if (u.MAC == mac)
{
return(true);
}
return(false);
});
if (user == null)
{
user = new LanUser();
user.MAC = mac;
this.Contacters.Add(user);
}
return(user);
}
}
private void InitMainUser(SynchronizationContext context)
{
_user = new LanUser(context);
if (LanConfig.Instance.HideStatus)
{
_user.Status = UserStatus.Offline;
}
else
{
_user.Status = UserStatus.Online;
}
_user.MAC = LanConfig.Instance.MAC;
_user.IP = NCIInfo.GetIPAddress(LanConfig.Instance.MAC);
_user.BroadcastAddress = LanConfig.Instance.BroadcastAddress;
_user.NickName = LanConfig.Instance.NickName;
//events
_user.UserEntry += _user_UserEntry;
_user.UserExit += _user_UserExit;
_user.UserStateChange += _user_UserStateChange;
_user.Send += _user_Send;
_user.TextMessageReceived += _user_TextMessageReceived;
_user.ImageReceived += _user_ImageReceived;
_user.ImageReceiveError += _user_ImageReceiveError;
_user.ImageReceiveProgressChanged += _user_ImageReceiveProgressChanged;
_user.FileTransportRequested += _user_FileTransportRequested;
_user.FileReceiveProgressChanged += _user_FileReceiveProgressChanged;
_user.FileReceiveCompleted += _user_FileReceiveCompleted;
_user.FileReceiveError += _user_FileReceiveError;
_user.FileSendProgressChanged += _user_FileSendProgressChanged;
_user.FileSendCompleted += _user_FileSendCompleted;
_user.FileSendError += _user_FileSendError;
//加载用户列表
LoadContacters();
}
public UserStateChangeEventArgs(LanUser user, UpdateState updateState)
: base(user)
{
this.UpdateState = updateState;
}
public LanIMUserEventArgs(LanUser user)
{
_user = user;
}
public FileTransportRequestedEventArgs(LanUser user, TransportFile file)
: base(user)
{
this._file = file;
}
public ImageReceivedEventArgs(LanUser user, long id, Image image)
: base(user)
{
_image = image;
}
public TextMessageReceivedEventArgs(LanUser user, long id, string msg)
: base(user)
{
ID = id;
Message = msg;
}
private void ReceivePacketEvent(object sender, UdpClientReceiveEventArgs args)
{
UdpPacket packet = args.Packet as UdpPacket;
if (packet.CheckSendResponse)
{
#region 需要回应收到包
if (packet.Version == Packet.VERSION)
{
UdpPacket packetRsp = new UdpPacket();
packetRsp.Address = packet.Address;
packetRsp.Port = packet.Port;
packet.ToMAC = packet.ToMAC;
packetRsp.FromMAC = this.MAC;
packetRsp.Command = UdpPacket.CMD_RESPONSE;
UdpPacketResponseExtend extend = new UdpPacketResponseExtend();
extend.ID = packet.ID;
packetRsp.Extend = extend;
_client.Send(packetRsp);
}
#endregion
}
if (packet.CMD == UdpPacket.CMD_NOTHING)
{
//do nothing
}
else if (packet.CMD == UdpPacket.CMD_ENTRY)
{
#region CMD_ENTRY 对方上线
UpdateState updateState = UpdateContacter(packet);
//TODO 应该更新所有的，但是跨网的时候好像发送的byte太长，不能正常发送暂且去掉头像
//SendUpdateStatePacket(LanIM.UpdateState.All,
// packet.Address, packet.Port, packet.FromMAC);
SendUpdateStatePacket(LanIM.UpdateState.NickName | LanIM.UpdateState.PublicKey | LanIM.UpdateState.Status,
packet.Address, packet.Port, packet.FromMAC);
if (UserEntry != null)
{
LanUser user = this[packet.FromMAC];
UserStateChangeEventArgs stateArgs = new UserStateChangeEventArgs(user, updateState);
UserEntry(this, stateArgs);
}
#endregion
}
else if (packet.CMD == UdpPacket.CMD_EXIT)
{
#region CMD_EXIT
if (UserExit != null)
{
LanUser user = this[packet.FromMAC];
user.Status = UserStatus.Offline;
UserStateChangeEventArgs stateArgs = new UserStateChangeEventArgs(user, LanIM.UpdateState.Status);
UserExit(this, stateArgs);
}
#endregion
}
else if (packet.CMD == UdpPacket.CMD_STATE)
{
#region CMD_STATE
UpdateState updateState = UpdateContacter(packet);
if (UserStateChange != null)
{
LanUser user = this[packet.FromMAC];
UserStateChangeEventArgs stateArgs = new UserStateChangeEventArgs(user, updateState);
UserStateChange(this, stateArgs);
}
#endregion
}
else if (packet.CMD == UdpPacket.CMD_SEND_TEXT)
{
#region CMD_SEND_TEXT
UdpPacketTextExtend extend = packet.Extend as UdpPacketTextExtend;
if (TextMessageReceived != null)
{
LanUser user = this[packet.FromMAC];
TextMessageReceivedEventArgs stateArgs = new TextMessageReceivedEventArgs(user, packet.ID, extend.Text);
TextMessageReceived(this, stateArgs);
}
#endregion
}
else if (packet.CMD == UdpPacket.CMD_SEND_IMAGE)
{
#region CMD_SEND_IMAGE
UdpPacketImageExtend extend = packet.Extend as UdpPacketImageExtend;
if (ImageReceived != null)
{
LanUser user = this[packet.FromMAC];
ImageReceivedEventArgs stateArgs = new ImageReceivedEventArgs(user, packet.ID, extend.Image);
ImageReceived(this, stateArgs);
}
#endregion
}
else if (packet.CMD == UdpPacket.CMD_SEND_FILE_REQUEST)
{
#region CMD_SEND_FILE_REQUEST
LanUser user = this[packet.FromMAC];
UdpPacketSendFileRequestExtend extend = packet.Extend as UdpPacketSendFileRequestExtend;
TransportFile file = new TransportFile(packet.ID, user.MAC, user.IP, user.Port, user.SecurityKeys.Public, extend.File);
if ((packet.Command & UdpPacket.CMD_OPTION_SEND_FILE_IMAGE) != 0)
{
//接收图像
if (ImageReceived != null)
{
this.ReceiveImage(user, file);
}
}
else
{
if (FileTransportRequested != null)
{
FileTransportRequestedEventArgs stateArgs = new FileTransportRequestedEventArgs(user, file);
FileTransportRequested(this, stateArgs);
}
}
#endregion
}
else if (packet.CMD == UdpPacket.CMD_RESPONSE)
{
UdpPacketResponseExtend extend = packet.Extend as UdpPacketResponseExtend;
_client.NotifySendPacketSuccess(extend.ID);
}
else
{
throw new Exception("未想定命令");
}
}
public long SendImage(LanUser user, Image image)
{
return(SendImageCore(user, image, null));
}
public long SendImage(LanUser user, string imagePath)
{
return(SendImageCore(user, null, imagePath));
}