private static void EncodeSendFileRequestExtend(BinaryWriter wtr, object extendObj)
{
UdpPacketSendFileRequestExtend extend = extendObj as UdpPacketSendFileRequestExtend;
if (extend == null)
{
throw new Exception("[EncodeImageExtend]未想定附加包");
}
using (MemoryStream ms = new MemoryStream())
{
using (BinaryWriter bw = new BinaryWriter(ms))
{
LanFile file = extend.File;
bw.Write(file.Name);
bw.Write(file.Length);
bw.Write(file.IsFolder);
bw.Close();
ms.Close();
byte[] buf = ms.ToArray();
byte[] enBuf = SecurityFactory.Encrypt(buf, extend.EncryptKey);
wtr.Write(enBuf.Length);
wtr.Write(enBuf);
}
}
}
private static UdpPacketSendFileRequestExtend ResolveSendFileRequestExtend(BinaryReader rdr, byte[] priKey)
{
int len = rdr.ReadInt32();
byte[] buf = rdr.ReadBytes(len);
byte[] deBuf = SecurityFactory.Decrypt(buf, priKey);
using (MemoryStream ms = new MemoryStream(deBuf))
{
using (BinaryReader bw = new BinaryReader(ms))
{
LanFile file = new LanFile();
file.Name = bw.ReadString();
file.Length = bw.ReadInt32();
file.IsFolder = bw.ReadBoolean();
bw.Close();
ms.Close();
UdpPacketSendFileRequestExtend extend = new UdpPacketSendFileRequestExtend();
extend.File = file;
return(extend);
}
}
}
private void _user_FileTransportProgressChanged(object sender, FileTransportEventArgs args)
{
TransportFile file = args.File;
OutputLog("接收文件[" + file.File.Name + "]," + file.Progress + "%," +
LanFile.HumanReadbleLen(file.TransportedLength) + "/" +
LanFile.HumanReadbleLen(file.File.Length) + "," +
LanFile.HumanReadbleLen(file.TransportedSpeed) + "/s");
}
protected override void OnItemClicked(ItemClickedEventArgs args)
{
if (args.Button == MouseButtons.Left)
{
MessageListItem item = args.Item as MessageListItem;
Message m = item.Message;
Rectangle rect = item.Bounds;
foreach (DrawingObject dobj in item.DrawingObjects)
{
RectangleF drawingObjRect = dobj.Offset(rect.X, rect.Y);
switch (dobj.Type)
{
//头像
case DrawingObjectType.ProfilePhoto:
if (drawingObjRect.Contains(args.Location))
{
UserProfileControl control = new UserProfileControl();
control.User = item.User;
control.Show(this.PointToScreen(args.Location));
return;
}
break;
case DrawingObjectType.Image:
case DrawingObjectType.File:
{
if (drawingObjRect.Contains(args.Location))
{
//点击了图像，显示大图, 或者打开文件
string path;
if (m.Type == MessageType.Image)
{
path = (m as ImageMessage).OriginPath;
}
else
{
path = (m as FileMessage).OriginFilePath;
}
if (LanFile.Exists(path))
{
Process.Start(path);
}
}
break;
}
}
}
}
else if (args.Button == MouseButtons.Right)
{
//交给显示右键菜单
}
}
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 static void SetPhoto(string key, Image img)
{
string fileName = Path.Combine(LanConfig.Instance.ProfilePhotoPath, key);
_cache.Remove(key);
LanFile.Delete(fileName);
if (img == null)
{
return;
}
using (Bitmap bmp = new Bitmap(img.Width, img.Height))
{
bmp.SetResolution(img.HorizontalResolution, img.VerticalResolution);
using (Graphics g = Graphics.FromImage(bmp))
{
g.DrawImageUnscaled(img, 0, 0);
}
bmp.Save(fileName, ImageFormat.Jpeg);
}
}
private void SendFile_Click(object sender, EventArgs e)
{
if (!this.SendMessageEnabled)
{
return;
}
using (OpenFileDialog ofd = new OpenFileDialog())
{
ofd.Filter = "所有文件|*.*";
if (ofd.ShowDialog(this) == DialogResult.OK)
{
string fileName = ofd.FileName;
long id = User.SendFile(Contacter, fileName);
//保存发送记录
Store.Models.FileMessage m = new Store.Models.FileMessage();
m.FromUserId = this.User.ID;
m.ToUserId = this.Contacter.ID;
m.OriginFilePath = fileName;
m.FileName = Path.GetFileName(fileName);
m.FileLength = LanFile.GetFileLength(fileName);
m.Flag = true; //默认成功，后面按照失败结果设定为false
MessageListItem item = new MessageListItem();
item.ID = id;
item.Message = m;
item.User = this.User;
item.State = MessageState.Sending;
item.Save();
AddMessageItem(item, true);
OnSendMessage(m);
}
}
}
private void SendFileHandler(object clientobj)
{
LoggerFactory.Debug("begin send file");
TcpClient client = null;
NetworkStream ns = null;
try
{
client = clientobj as TcpClient;
ns = client.GetStream();
if (!ns.CanRead)
{
//想定外
ns.Close();
client.Close();
OnError(Errors.NotExistTransportId, "未收到传送ID", null, null);
return;
}
}
catch (Exception e)
{
OnError(Errors.NetworkError, "尝试收取传送ID失败", null, e);
return;
}
LoggerFactory.Debug("get file id");
//取得传送的文件ID
byte[] buff = null;
int len = 0;
try
{
buff = new byte[this.ReceiveBufferSize];
len = ns.Read(buff, 0, buff.Length);
}
catch (Exception e)
{
ns.Close();
client.Close();
OnError(Errors.NetworkError, "尝试收取传送ID失败", null, e);
return;
}
TcpPacket packet = null;
try
{
IPacketResolver resolver = PacketResolverFactory.CreateResolver(buff, 0, len, this.SecurityKeys.Private);
packet = resolver.Resolve() as TcpPacket;
}
catch (Exception e)
{
ns.Close();
client.Close();
OnError(Errors.ResolveError, "解密文件ID失败", null, e);
return;
}
LoggerFactory.Debug("get file");
TcpPacketRequestFileTransportExtend extend = packet.Extend as TcpPacketRequestFileTransportExtend;
if (!_transportFileDic.TryRemove(extend.FileID, out TransportFile file))
{
ns.Close();
client.Close();
OnError(Errors.NotExistTransportId, "不存在的文件ID=" + extend.FileID, null, null);
return;
}
LanFile lanFile = file.File;
if (!File.Exists(lanFile.Path))
{
ns.Close();
client.Close();
OnError(Errors.FileOpenError, "不存在的文件:" + lanFile.Path, file, null);
return;
}
LoggerFactory.Debug("open file");
FileStream fs = null;
try
{
fs = new FileStream(lanFile.Path, FileMode.Open, FileAccess.Read);
//TODO 对于大文件用MemoryMappedFile提高速度,但是对这个类用法不是很清楚，效率也未做实验，暂时不对应
//MemoryMappedFile f1s = MemoryMappedFile.CreateFromFile(fs, FileMode.Open, "", 1024, MemoryMappedFileAccess.Read);
//f1s.CreateViewStream
}
catch (Exception e)
{
ns.Close();
client.Close();
OnError(Errors.FileOpenError, "文件打开失败", file, e);
return;
}
LoggerFactory.Debug("sending file");
try
{
//发送文件
file.StartTransport();
long lastProgressTicks = file.NowTransportTicks;
while ((len = fs.Read(buff, 0, buff.Length)) != 0)
{
ns.Write(buff, 0, len);
file.Transported(len);
if (file.TransportedLength == file.File.Length ||
(DateTime.Now.Ticks - lastProgressTicks) > this._progressChangeInterval) //避免进度太频繁，500ms一次
{
OnProgressChanged(file);
lastProgressTicks = file.NowTransportTicks;
}
}
}
catch (Exception e)
{
OnError(Errors.NetworkError, "文件传输网络错误", file, e);
}
finally
{
fs.Close();
ns.Flush();
ns.Close();
client.Close();
OnCompleted(file);
}
LoggerFactory.Debug("end send file");
}
public void Receive(TransportFile file)
{
TaskFactory taskFactory = new TaskFactory();
taskFactory.StartNew(() =>
{
LoggerFactory.Debug("start receive file:id={0}", file.ID);
string tmpPath = file.SavePath + "." + Path.GetRandomFileName().Replace(".", "") + ".lamim";
FileStream fs = null;
try
{
fs = new FileStream(tmpPath, FileMode.Create);
}
catch (Exception e)
{
OnError(Errors.FileOpenError, "打开文件失败:" + tmpPath, file, e);
return;
}
LoggerFactory.Debug("opened file:" + tmpPath);
LoggerFactory.Debug("try connect remote:remote={0}, port={1}", file.Remote, file.Port);
TcpClient tcpClient = null;
NetworkStream ns = null;
try
{
tcpClient = new TcpClient(AddressFamily.InterNetwork)
{
ReceiveBufferSize = this.ReceiveBufferSize
};
tcpClient.Connect(file.Remote, file.Port);
ns = tcpClient.GetStream();
}
catch (Exception e)
{
OnError(Errors.NetworkError, "连接失败", file, e);
return;
}
LoggerFactory.Debug("conneted remote:remote={0}, port={1}", file.Remote, file.Port);
LoggerFactory.Debug("encode packet, request file:id={0}", file.ID);
TcpPacket packet = null;
EncodeResult result = null;
try
{
//发送要接受的文件ID
TcpPacketRequestFileTransportExtend extend = new TcpPacketRequestFileTransportExtend
{
EncryptKey = file.PublicKey,
FileID = file.ID
};
packet = new TcpPacket
{
Command = TcpPacket.CMD_REQUEST_FILE_TRANSPORT,
Extend = extend
};
IPacketEncoder encoder = PacketEncoderFactory.CreateEncoder(packet);
result = encoder.Encode(null);
}
catch (Exception e)
{
OnError(Errors.EncodeError, "请求文件ID包加密失败。" + packet.ToString(), file, e);
return;
}
LoggerFactory.Debug("send packet, request file:id={0}", file.ID);
try
{
ns.Write(result.Fragments[0], 0, result.Fragments[0].Length);
}
catch (Exception e)
{
OnError(Errors.NetworkError, "请求文件ID包发送失败", file, e);
return;
}
LoggerFactory.Debug("receive file start:id={0}", file.ID);
try
{
int len = 0;
file.StartTransport();
long lastProgressTicks = file.NowTransportTicks;
byte[] buff = new byte[this.ReceiveBufferSize];
while ((len = ns.Read(buff, 0, buff.Length)) != 0)
{
fs.Write(buff, 0, len);
file.Transported(len);
if (file.TransportedLength == file.File.Length ||
(DateTime.Now.Ticks - lastProgressTicks) > this._progressChangeInterval) //避免进度太频繁，500ms一次
{
OnProgressChanged(file);
lastProgressTicks = file.NowTransportTicks;
}
}
LoggerFactory.Debug("receive file end:id={0}", file.ID);
}
catch (Exception e)
{
OnError(Errors.NetworkError, "文件接收失败", file, e);
}
finally
{
LoggerFactory.Debug("close connect and save file:id={0}", file.ID);
//关闭连接
ns.Close();
tcpClient.Close();
fs.Flush(true);
fs.Close();
if (LanFile.Rename(tmpPath, file.SavePath))
{
//发送接收完毕
OnCompleted(file);
}
else
{
OnError(Errors.FileWriteError, "文件写入失败", file, null);
}
}
LoggerFactory.Debug("end receive file:id={0}", file.ID);
});
}
protected override void OnDrawItem(UI.DrawItemEventArgs args)
{
MessageListItem item = args.Item as MessageListItem;
Message m = item.Message;
args.DrawBackground();
Graphics g = args.Graphics;
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
Rectangle rect = item.Bounds;
Rectangle drawingObjRect;
Point pos = PointToClient(MousePosition);
foreach (DrawingObject dobj in item.DrawingObjects)
{
drawingObjRect = dobj.Offset(rect.X, rect.Y);
switch (dobj.Type)
{
//头像
case DrawingObjectType.ProfilePhoto:
{
g.DrawImage(ProfilePhotoPool.GetPhoto(item.User.ID), drawingObjRect);
if (drawingObjRect.Contains(pos))
{
g.DrawRectangle(IMAGE_BORDER_PEN_FOCUS, drawingObjRect.X, drawingObjRect.Y, drawingObjRect.Width, drawingObjRect.Height);
}
break;
}
//时间, 昵称，状态
case DrawingObjectType.Title:
{
string text = item.User.NickName + " " + m.Time.ToString("yyyy/MM/dd HH:mm:ss");
if (!m.Flag)
{
text += " 传送失败";
}
TextRenderer.DrawText(g, text,
args.Font, new Point((int)drawingObjRect.X, (int)drawingObjRect.Y)
, m.Flag ? SUCCESS_TITLE_COLOR : ERROR_TITLE_COLOR, TextFormatFlags.Left);
break;
}
//文本消息
case DrawingObjectType.TextBlock:
{
TextBlockObj tb = dobj.Tag as TextBlockObj;
StringPart sp = tb.StringPart;
int selStart = Math.Min(tb.SelectionStart, tb.SelectionEnd);
int selEnd = Math.Max(tb.SelectionStart, tb.SelectionEnd);
string str1 = selStart == -1 ? sp.String : sp.String.Substring(0, selStart);
string str2 = selStart == -1 ? "" : sp.String.Substring(selStart, tb.SelectionLength);
string str3 = selEnd == -1 ? "" : sp.String.Substring(selEnd + 1);
//选择前的文本
if (!string.IsNullOrEmpty(str1))
{
TextRenderer.DrawText(g, str1, sp.Font, new Point((int)drawingObjRect.X, (int)drawingObjRect.Y), args.ForeColor,
StringMeasurer.TextFormatFlags);
}
//选择中文本
if (!string.IsNullOrEmpty(str2))
{
int w1 = StringMeasurer.Width(g, sp.Font, str1, sp.TextFormatFlags);
int w2 = StringMeasurer.Width(g, sp.Font, str2, sp.TextFormatFlags);
drawingObjRect.X += w1;
drawingObjRect.Width = w2;
g.FillRectangle(BrushPool.GetBrush(TEXT_SELECTION_BACK_COLOR), drawingObjRect);
TextRenderer.DrawText(g, str2, sp.Font, new Point((int)drawingObjRect.X, (int)drawingObjRect.Y),
TEXT_SELECTION_FORE_COLOR, StringMeasurer.TextFormatFlags);
//选择后的文本
if (!string.IsNullOrEmpty(str3))
{
drawingObjRect.X += w2;
drawingObjRect.Width = dobj.Width - w1 - w2;
TextRenderer.DrawText(g, str3, sp.Font, new Point((int)drawingObjRect.X, (int)drawingObjRect.Y), args.ForeColor,
StringMeasurer.TextFormatFlags);
}
}
break;
}
case DrawingObjectType.Image:
{
Image image = (m as ImageMessage).Image;
g.DrawImage(image, drawingObjRect);
if (drawingObjRect.Contains(pos))
{
g.DrawRectangle(IMAGE_BORDER_PEN_FOCUS, drawingObjRect.X, drawingObjRect.Y, drawingObjRect.Width, drawingObjRect.Height);
}
else
{
g.DrawRectangle(IMAGE_BORDER_PEN, drawingObjRect.X, drawingObjRect.Y, drawingObjRect.Width, drawingObjRect.Height);
}
break;
}
case DrawingObjectType.File:
{
FileMessage fm = m as FileMessage;
//底背景
g.FillRectangle(Brushes.White, drawingObjRect);
if (drawingObjRect.Contains(pos))
{
g.DrawRectangle(IMAGE_BORDER_PEN_FOCUS, drawingObjRect.X, drawingObjRect.Y, drawingObjRect.Width, drawingObjRect.Height);
}
else
{
g.DrawRectangle(IMAGE_BORDER_PEN, drawingObjRect.X, drawingObjRect.Y, drawingObjRect.Width, drawingObjRect.Height);
}
//文件名，文件大小，ICON
Image image = FileIconPool.GetIcon(fm.OriginFilePath);
int imageWidth = 64;
int imageHeight = 64 * image.Height / image.Width;
Rectangle imageRect = new Rectangle(drawingObjRect.X + FILE_SEND_WIDTH - imageWidth - MARGIN, drawingObjRect.Y + MARGIN, imageWidth, FILE_SEND_HEIGHT - Font.Height - MARGIN * 3);
Rectangle fileNameRect = new Rectangle(drawingObjRect.X + MARGIN, drawingObjRect.Y + MARGIN, FILE_SEND_WIDTH - imageWidth - MARGIN * 3, FILE_SEND_HEIGHT - Font.Height - MARGIN * 3);
Rectangle fontRect = new Rectangle(drawingObjRect.X + MARGIN, drawingObjRect.Y + FILE_SEND_HEIGHT - Font.Height - MARGIN, FILE_SEND_WIDTH - MARGIN * 2, Font.Height);
Rectangle pieRect = new Rectangle(drawingObjRect.X + (FILE_SEND_WIDTH - PROGRESS_PIE_D) / 2, drawingObjRect.Y + (FILE_SEND_HEIGHT - PROGRESS_PIE_D) / 2, PROGRESS_PIE_D, PROGRESS_PIE_D);
Rectangle processRect = new Rectangle(drawingObjRect.X, drawingObjRect.Y + (FILE_SEND_HEIGHT - Font.Height * 2) / 2, FILE_SEND_WIDTH, Font.Height * 2);
//当文件名超过显示部分时，中间用省略号表示
string str = fm.FileName;
SizeF s = g.MeasureString(fm.FileName, Font, new System.Drawing.SizeF((float)fileNameRect.Width, (float)fileNameRect.Height), StringFormat.GenericDefault, out int count, out int lines);
if (s.Height >= fileNameRect.Height & str.Length >= count)
{
//由于会出现半行的情况，直接写死了所取的字符串数目
str = str.Substring(0, 36) + "・・・" + str.Substring(str.Length - 4);
}
g.DrawImage(image, imageRect.X, imageRect.Y, imageWidth, imageHeight);
g.DrawString(str, args.Font, Brushes.Black, fileNameRect);
TextRenderer.DrawText(g, LanFile.HumanReadbleLen(fm.FileLength), args.Font, fontRect, Color.FromArgb(0, 0, 0), TextFormatFlags.Left);
if (item.State == MessageState.Receiving ||
item.State == MessageState.Sending)
{
//接受进度
g.FillRectangle(MESSAGELIST_PROGRESS_BACKGROUND_BRUSH, drawingObjRect);
g.DrawPie(PROGRESS_PEN, pieRect, 0, 360);
g.FillPie(MESSAGELIST_PROGRESS_FILLED_BRUSH, pieRect, 0, 360 * item.Progress / 100);
//TODO 显示剩余时间，传输速度
TextRenderer.DrawText(g, item.Progress + "%" + "\r\n" + LanFile.HumanReadbleLen(item.FileTransportedLength) + "/" + LanFile.HumanReadbleLen(fm.FileLength),
args.Font, processRect, Color.FromArgb(0, 0, 0), TextFormatFlags.HorizontalCenter);
}
break;
}
}
}
}
