private void ScreenShotButton_Click(object sender, EventArgs e)//点击“截图”图标
{
InfoWindow Mes = new InfoWindow("功能尚未开放\n 敬请期待", false);
Mes.StartPosition = FormStartPosition.CenterParent;
Mes.ShowDialog();
}
private void button2_Click(object sender, EventArgs e)//点击"退出登录"按键，执行下线功能
{
InfoWindow Confirm = new InfoWindow("确认退出当前账号？", true);
Confirm.StartPosition = FormStartPosition.CenterParent;
Confirm.ShowDialog();
if (Confirm.DialogResult == DialogResult.OK)//确认退出
{
Confirm.Close();
TcpClient client = new TcpClient();
try
{
client.Connect(BasicInfo.ServerIp, BasicInfo.ServerPort);
}
catch
{
InfoWindow Mes = new InfoWindow("服务器正忙\n 请稍等", false);
Mes.StartPosition = FormStartPosition.CenterParent;
Mes.Show();
return;
}
if (client.Connected)//连接成功发送下线请求
{
NetworkStream ClientToServer = client.GetStream();
string LoginInfo = "logout" + BasicInfo.UserName; //"logout"+学号
byte[] send = Encoding.Default.GetBytes(LoginInfo); //转化为字节流
ClientToServer.Write(send, 0, send.Length); //写入NetworkStream
byte[] msg = new byte[1024]; //接收
int length = ClientToServer.Read(msg, 0, msg.Length);
string response = Encoding.Default.GetString(msg, 0, length);
Console.WriteLine(response);
if (response == "loo")//服务器返回成功下线信息
{
ClientToServer.Close();
client.Close();
InfoWindow Mes = new InfoWindow("下线成功！", false);
Mes.StartPosition = FormStartPosition.CenterParent;
Mes.ShowDialog();
if (Mes.DialogResult == DialogResult.Cancel)
{
System.Environment.Exit(0);//关闭所有进程
}
}
else
{
//InfoWindow Mes = new InfoWindow("服务器状态异常\n 请稍等", false);//提示信息好像会重复，这里不要了
//Mes.StartPosition = FormStartPosition.CenterParent;
//Mes.Show();
return;
}
}
}
}
static void Logout()//下线功能，现已移植到ChatWindow中
{
InfoWindow Confirm = new InfoWindow("确认退出当前账号？", true);
Confirm.StartPosition = FormStartPosition.CenterParent;
Confirm.ShowDialog();
if (Confirm.DialogResult == DialogResult.OK)
{
Confirm.Close();
TcpClient client = new TcpClient();
try
{
client.Connect(BasicInfo.ServerIp, BasicInfo.ServerPort);
}
catch
{
InfoWindow Mes = new InfoWindow("服务器无响应\n您已强制退出程序", false);
Mes.StartPosition = FormStartPosition.CenterParent;
Mes.Show();
}
if (client.Connected)
{
NetworkStream ClientToServer = client.GetStream();
string LoginInfo = "logout" + BasicInfo.UserName; //下线格式："logout"+学号
byte[] send = Encoding.Default.GetBytes(LoginInfo); //将输入信息转化为byte字节流
ClientToServer.Write(send, 0, send.Length); //从networkstream中写入字节流
//接收
byte[] msg = new byte[1024];
int length = ClientToServer.Read(msg, 0, msg.Length);
string response = Encoding.Default.GetString(msg, 0, length);
Console.WriteLine(response);
if (response == "loo")
{
ClientToServer.Close();
client.Close();
InfoWindow Mes = new InfoWindow("您已强制退出程序\n 下线成功！", false);
Mes.StartPosition = FormStartPosition.CenterParent;
Mes.ShowDialog();
if (Mes.DialogResult == DialogResult.Cancel)
{
System.Environment.Exit(0);
} //关闭所有进程
}
else
{
InfoWindow Mes = new InfoWindow("未成功下线！\n您已强制退出程序", false);
Mes.StartPosition = FormStartPosition.CenterParent;
Mes.Show();
}
}
}
}
private void TcpSend(NetworkStream ClientToServer, string Message) //发送TCP消息
{
byte[] msg = Encoding.Default.GetBytes(Message); //将字符串转化为字节流
try
{
ClientToServer.Write(msg, 0, msg.Length);//写入NetworkStream
Console.WriteLine(Message);
}
catch
{
InfoWindow Mes = new InfoWindow("发送消息失败！", false);
Mes.StartPosition = FormStartPosition.CenterParent;
Mes.ShowDialog();
}
}
private void SearchDialogueButton_Click(object sender, EventArgs e)//点击“保存/查询聊天记录”图标
{
string path = ".\\" + BasicInfo.UserName;
if (!Directory.Exists(path))//用户目录不存在时新建文件夹
{
DirectoryInfo directoryInfo = new DirectoryInfo(path);
directoryInfo.Create();
}
if (!File.Exists(path + "\\With" + BasicInfo.CurrentFriend + ".txt"))//打开保存聊天记录的文件
{
FileStream fs = new FileStream(path + "\\With" + BasicInfo.CurrentFriend + ".txt", FileMode.Create, FileAccess.ReadWrite);
fs.Close();
}
int pos = -1;
for (int i = 0; i < MyFriendList.Count; i++)
{
if (MyFriendList[i].Name == BasicInfo.CurrentFriend)
{
pos = i;
break;
}
}
if (pos > -1)
{
Console.WriteLine(pos);
StreamWriter sw = new StreamWriter(path + "\\With" + BasicInfo.CurrentFriend + ".txt", true);
for (int i = MyFriendList[pos].RecentSave; i < MyFriendList[pos].WordList.Count; i++)
{
sw.WriteLine(MyFriendList[pos].WordList[i]);
}
MyFriendList[pos].RecentSave = MyFriendList[pos].WordList.Count;
sw.Close();
InfoWindow Confirm = new InfoWindow("聊天记录保存成功\n 是否打开?", true);
Confirm.StartPosition = FormStartPosition.CenterParent;
Confirm.ShowDialog();
if (Confirm.DialogResult == DialogResult.OK)//确认退出
{
System.Diagnostics.Process.Start("Explorer", path);
}
else
{
return;
}
}
}
private void LoginButton_Click(object sender, EventArgs e)//"Send"按键，按下发送消息键
{
if (RichText.Text.Length == 0)
{
InfoWindow Mes1 = new InfoWindow("您还未输入信息哦", false);
Mes1.StartPosition = FormStartPosition.CenterParent;
Mes1.ShowDialog();
return;
}
else
{
if (BasicInfo.CurrentFriend == null)
{
InfoWindow Mes1 = new InfoWindow("您还未添加好友哦", false);
Mes1.StartPosition = FormStartPosition.CenterParent;
Mes1.ShowDialog();
return;
}
string filePath = "";
//string
if (filePath == string.Empty)
{
if (SendText(BasicInfo.CurrentFriend, RichText.Text))
{
Friend TempFriend = UpdateChatPanel(BasicInfo.CurrentFriend, RichText.Text, DialogueType.MyText);
Refresh(TempFriend, true);
RichText.Clear();
}
else
{
return;
}
}
else
{
string file = BasicInfo.CurrentFriend + filePath;
Thread SendFile; //发送文件线程
SendFile = new Thread(new ParameterizedThreadStart(sendfile));
SendFile.Start((object)file); //开线程传文件
RichText.Clear();
}
}
}
private QueryResult SearchIP(string Name) //查询对话方的IP地址信息
{
TcpClient client = new TcpClient();
QueryResult query = new QueryResult();
try
{
client.Connect(BasicInfo.ServerIp, BasicInfo.ServerPort);
}
catch
{
InfoWindow Mes2 = new InfoWindow("连接失败\n 请稍后重试", false);
Mes2.StartPosition = FormStartPosition.CenterParent;
Mes2.ShowDialog();
client.Close();
}
if (client.Connected)
{
NetworkStream ClientToServer = client.GetStream();
string QueryInfo = "q" + Name;//“q”+学号查询在线状态
TcpSend(ClientToServer, QueryInfo);
string response = TcpReceive(ClientToServer);
query.Message = response;
if (response.Length > 0)
{
if (response == "n")
{
InfoWindow Mes1 = new InfoWindow("该用户不在线", false);
Mes1.StartPosition = FormStartPosition.CenterParent;
Mes1.ShowDialog();
}
else
{
query.IsOnline = true;
query.IP = response;
}
}
ClientToServer.Close();
}
client.Close();
return(query);
}
private void GroupButton_Click(object sender, EventArgs e)//点击“发起群聊”图标
{
if (MyFriendList.Count < 3)
{
InfoWindow Mes1 = new InfoWindow("您的好友数小于3\n 不能发起群聊", false);
Mes1.StartPosition = FormStartPosition.CenterParent;
Mes1.ShowDialog();
return;
}
InfoWindow Confirm = new InfoWindow("与当前所有好友\n 发起群聊？", true);
Confirm.StartPosition = FormStartPosition.CenterParent;
Confirm.ShowDialog();
if (Confirm.DialogResult == DialogResult.Cancel)//
{
return;
}
InfoWindow Mes = new InfoWindow("程序员Debug中...\n 请尝试其他功能", false);
Mes.StartPosition = FormStartPosition.CenterParent;
Mes.ShowDialog();
return;
}
private string TcpReceive(NetworkStream ClientToServer)//接收TCP消息
{
string response = "";
byte[] Buffer = new byte[1024];
int length = 0;
try
{
length = ClientToServer.Read(Buffer, 0, 1024);
if (length > 0)
{
response = Encoding.Default.GetString(Buffer, 0, length);//将字节流转化为字符串
Console.WriteLine("TCP_Receive" + response);
}
}
catch
{
InfoWindow Mes = new InfoWindow("接收消息失败！", false);
Mes.StartPosition = FormStartPosition.CenterParent;
Mes.ShowDialog();
}
return(response);
}
private void button1_Click(object sender, EventArgs e)//“查询好友”按键，查询好友在线状态并添加好友
{
string QueryName = SearchText.Text;
if (QueryName == BasicInfo.UserName)//查询自己学号禁止添加自己操作
{
InfoWindow Mes2 = new InfoWindow("您已在线", false);
Mes2.StartPosition = FormStartPosition.CenterParent;
Mes2.ShowDialog();
return;
}
TcpClient client = new TcpClient();
QueryResult query = new QueryResult();
try
{
client.Connect(BasicInfo.ServerIp, BasicInfo.ServerPort);
}
catch
{
InfoWindow Mes2 = new InfoWindow("连接失败\n 请稍后重试", false);
Mes2.StartPosition = FormStartPosition.CenterParent;
Mes2.ShowDialog();
client.Close();
}
if (client.Connected)
{
NetworkStream ClientToServer = client.GetStream();
string QueryInfo = "q" + QueryName;//“q”+学号查询在线状态
TcpSend(ClientToServer, QueryInfo);
string response = TcpReceive(ClientToServer);
query.Message = response;
Console.WriteLine("查询好友状态IP" + response);
if (response.Length > 0)
{
if (response.StartsWith("I") || response.StartsWith("P"))//服务器返回InVailid No.或Please send correct message
{
InfoWindow Mes1 = new InfoWindow("该用户不存在", false);
Mes1.StartPosition = FormStartPosition.CenterParent;
Mes1.ShowDialog();
return;
}
else if (response == "n")
{
InfoWindow Mes1 = new InfoWindow("该用户不在线", false);
Mes1.StartPosition = FormStartPosition.CenterParent;
Mes1.ShowDialog();
return;
}
else
{
query.IsOnline = true;
query.IP = response;
}
}
ClientToServer.Close();
}
client.Close();
InfoWindow Mes = new InfoWindow(QueryName + "在线\n 是否发起会话？", true);
Mes.StartPosition = FormStartPosition.CenterParent;
Mes.ShowDialog();
if (Mes.DialogResult == DialogResult.Cancel)
{
return;
}
Friend CurrentFriend = UpdateChatPanel(QueryName, string.Empty);
Refresh(CurrentFriend, true);
return;
}
private void sendfile(object file)//发起P2P连接发送文件
{
string FileName = (string)file;
string FriendName = FileName.Substring(0, 10);
FileName = FileName.Substring(10);
string truefilename = FileName.Substring(FileName.LastIndexOf('\\') + 1);
FileStream ReadStream = new FileStream(FileName, FileMode.Open, FileAccess.Read);
byte[] buffer = new byte[1024];
int Packet = 1024;
int TotalFileNum = (int)(ReadStream.Length + 1023) / 1024;
if (TotalFileNum > 0)// 文件不为空
{
int pos = -1;
for (int i = 0; i < MyFriendList.Count; i++)
{
if (MyFriendList[i].Name == FriendName)
{
pos = i;
break;
}
}
QueryResult query = SearchIP(FriendName); //与发送消息基本相同
while (true) //等待端口空闲
{
pos = -1;
for (int i = 0; i < MyFriendList.Count; i++)
{
if (MyFriendList[i].Name == FriendName)
{
pos = i;
break;
}
}
if (pos > -1 || MyFriendList[pos].IsBusy == false)
{
break;
}
else
{
InfoLabel.Text = "端口正在占用，请稍等";
}
}
TcpClient NewClient = new TcpClient();
MyFriendList[pos].IsBusy = true; //正在占用端口
try //先尝试连接服务器
{
int Port = int.Parse(FriendName.Substring(6)) + 10000;
NewClient.Connect(query.IP, Port);
}
catch//未连接成功
{
Console.WriteLine("发起P2P连接失败");
return;
}
if (NewClient.Connected)
{
NetworkStream PeerToPeer = NewClient.GetStream();
byte[] ConfirmMessage = Encoding.Default.GetBytes(BasicInfo.UserName);
string response;
try
{
PeerToPeer.Write(ConfirmMessage, 0, ConfirmMessage.Length);//发送自己的名字，收到ACK时进行对话
byte[] ReturnMessage = new byte[20];
int length = PeerToPeer.Read(ReturnMessage, 0, ReturnMessage.Length);
response = Encoding.Default.GetString(ReturnMessage, 0, length);
Console.WriteLine(response);
}
catch
{
Console.WriteLine("发送P2P认证信息失败");
PeerToPeer.Close();
NewClient.Close();
return;
}
if (response == "ACK")//对方已经收到发出去的消息并加自己为好友
{
string temp = "[FileName]" + truefilename + "[Length]" + ReadStream.Length.ToString();
byte[] msg = Encoding.Default.GetBytes(temp);
//Console.WriteLine(msg.Length);
PeerToPeer.Write(msg, 0, msg.Length);
PeerToPeer.WriteTimeout = 20000;
int fileLength = 0;
try
{
while (fileLength < ReadStream.Length)
{
this.Invoke(new EventHandler(delegate
{
double percent = Convert.ToInt32(100.0 * fileLength / ReadStream.Length);
InfoLabel.Text = "文件传输中..." + percent + "%";//显示文件传输进度
}));
Packet = ReadStream.Read(buffer, 0, buffer.Length);
PeerToPeer.Write(buffer, 0, Packet);
fileLength += Packet;
}
Console.WriteLine(fileLength.ToString() + " " + ReadStream.Length.ToString());
this.Invoke(new EventHandler(delegate
{
InfoLabel.Text = "文件传输完成";
}));
ReadStream.Flush();//ReadStream.Flush();
PeerToPeer.Flush();
ReadStream.Close();
}
catch
{
InfoWindow Mes2 = new InfoWindow("文件传输失败", false);
Console.WriteLine("文件传输失败");
Mes2.StartPosition = FormStartPosition.CenterParent;
Mes2.Show();
return;
}
this.Invoke(new EventHandler(delegate
{
temp = "[文件][" + truefilename + "]";
UpdateChatPanel(BasicInfo.CurrentFriend, temp, DialogueType.MyText);//更新对话框显示
}));
}
PeerToPeer.Close();
NewClient.Close();
}
MyFriendList[pos].IsBusy = false;//释放端口
}
else
{
InfoWindow Mes2 = new InfoWindow("传输文件为空或过大", false);
Mes2.StartPosition = FormStartPosition.CenterParent;
Mes2.ShowDialog();
return;
}
}
private void LoginButton_Click(object sender, EventArgs e)
{
string LoginInfo;
int Port = 10000;
try//记录端口
{
Port = int.Parse(NameText.Text.Substring(6)) + 10000;
}
catch
{
InfoWindow Mes = new InfoWindow("请输入有效账号", false);
Mes.StartPosition = FormStartPosition.CenterParent;
Mes.ShowDialog();
}
IPGlobalProperties ipProperties = IPGlobalProperties.GetIPGlobalProperties();
IPEndPoint[] ipEndPoints = ipProperties.GetActiveTcpListeners();
foreach (IPEndPoint endPoint in ipEndPoints)//判断该端口是否被占用
{
if (endPoint.Port == Port)
{
InfoWindow Mes = new InfoWindow("该账号已登录", false);
Mes.StartPosition = FormStartPosition.CenterParent;
Mes.ShowDialog();
return;
}
}
TcpClient client = new TcpClient();
try//尝试连接服务器
{
client.Connect(BasicInfo.ServerIp, BasicInfo.ServerPort);
}
catch//未连接成功
{
InfoWindow Mes = new InfoWindow("连接失败\n请稍后重试", false);
Mes.StartPosition = FormStartPosition.CenterParent;
Mes.ShowDialog();
}
if (client.Connected)
{
NetworkStream ClientToServer = client.GetStream();
LoginInfo = NameText.Text + "_" + PasswordText.Text;
byte[] send = Encoding.Default.GetBytes(LoginInfo); //将输入信息转化为字节流
ClientToServer.Write(send, 0, send.Length); //写入NetworkStream
//接收
byte[] msg = new byte[1024];
int length = ClientToServer.Read(msg, 0, msg.Length);
string response = Encoding.Default.GetString(msg, 0, length);
Console.WriteLine(response);
if (response == "lol")//服务器返回登录成功
{
BasicInfo.UserName = NameText.Text;
ClientToServer.Close();
client.Close();
this.DialogResult = DialogResult.OK;
}
else
{
InfoWindow Mes = new InfoWindow("用户名或密码错误！", false);
Mes.StartPosition = FormStartPosition.CenterParent;
Mes.ShowDialog();
}
}
else
{
return;
}
}