private void Server()
{
listenEnable = true;
listener.Start(maxConnect);
//Thread revThread = new Thread(RevMsg);
//revThread.Start();
writeLog("监听程序启动成功，端口：" + hostPort);
while (listenEnable)
{
UserClient clientTmp = new UserClient();
try
{
clientTmp.client = listener.AcceptTcpClient();
clientTmp.netStream = clientTmp.client.GetStream();
clientTmp.endPoint = clientTmp.client.Client.LocalEndPoint;
Thread threadTalk = new Thread(() => { startTalking(clientTmp); });
threadTalk.Start();
}
catch (Exception ex)
{
writeLog("监听信息：" + ex.Message);
if (clientTmp.netStream != null)
{
clientTmp.netStream.Dispose();
}
if (clientTmp.client != null)
{
clientTmp.client.Close();
}
}
}
}
// type___ 1:add 2:remove
void ContUserList(int type, UserClient client)
{
if (1 == type)
{
foreach (UserClient cli in userList)
{
if (cli.id == client.id)
{
if (cli.ip == client.ip && cli.port == client.port)
{
return;
}
else
{
userList.Remove(cli);
}
}
}
userList.Add(client);
}
else if (2 == type)
{
userList.Remove(client);
}
}
private void sendMessageWithOnlineFriends(UserClient toC)
{
string sendMessages;
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.LoadXml(HeaderXML + OnlineFrame);
XmlElement rootNode = xmlDoc.DocumentElement;
rootNode.SetAttribute("type", "OnlineFriends");
XmlNode node = rootNode.SelectSingleNode("Data");
foreach (UserClient cli in userList)
{
if (!toC.Equals(cli))
{
XmlElement userNode = xmlDoc.CreateElement("OnlineUser");
XmlElement ipNode = xmlDoc.CreateElement("IPAddress");
ipNode.InnerText = cli.ip.ToString();
XmlElement portNode = xmlDoc.CreateElement("Port");
portNode.InnerText = cli.port.ToString();
XmlElement nameNode = xmlDoc.CreateElement("Name");
nameNode.InnerText = cli.name;
XmlElement idNode = xmlDoc.CreateElement("UserID");
idNode.InnerText = cli.id.ToString();
userNode.AppendChild(ipNode);
userNode.AppendChild(portNode);
userNode.AppendChild(nameNode);
userNode.AppendChild(idNode);
node.AppendChild(userNode);
}
}
sendMessages = xmlDoc.InnerXml;
//writeLog(sendMessages);
try
{
byte[] sendData = new byte[2048];
sendData = Encoding.UTF8.GetBytes(sendMessages);
toC.netStream.Write(sendData, 0, sendData.Length);
//textBox2.Invoke(callb, "\r\n向服务器发送：\r\n\t" + sendMessages);
//textBox2.Invoke(callb, "\r\n=====发送完毕=====");
}
catch (Exception ex)
{
writeLog("连接服务器请求失败：" + ex.Message);
if (toC.netStream != null)
{
toC.netStream.Dispose();
}
if (toC.client != null)
{
toC.client.Close();
}
userList.Remove(toC);
}
}
private void freshOnlineToEveryone()
{
foreach (UserClient cli in userList)
{
UserClient tmp = new UserClient();
tmp = cli;
Thread sendConnect = new Thread(() =>
{
sendMessageWithOnlineFriends(tmp);
});
sendConnect.Start();
}
}
private void sendConnectingMsg(UserClient client, int isOk)
{
string sendMessages;
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.LoadXml(HeaderXML + ConnectingFrame);
XmlElement rootNode = xmlDoc.DocumentElement;
rootNode.SetAttribute("type", "ConnectingMsg");
XmlNode node = rootNode.SelectSingleNode("Data");
node.SelectSingleNode("Error").InnerText = isOk.ToString();
node.SelectSingleNode("UserID").InnerText = client.id.ToString();
if (1 == isOk)
{
node.SelectSingleNode("Name").InnerText = client.name;
}
sendMessages = xmlDoc.InnerXml;
try
{
byte[] sendData = new byte[2048];
sendData = Encoding.UTF8.GetBytes(sendMessages);
client.netStream.Write(sendData, 0, sendData.Length);
//textBox2.Invoke(callb, "\r\n向服务器发送：\r\n\t" + sendMessages);
//textBox2.Invoke(callb, "\r\n=====发送完毕=====");
}
catch (Exception ex)
{
writeLog("连接请求回复发送失败：" + ex.Message);
if (client.netStream != null)
{
client.netStream.Dispose();
}
if (client.client != null)
{
client.client.Close();
}
}
}
private void resendMessageChat(UserClient toC, string str)
{
try
{
byte[] sendData = new byte[2048];
sendData = Encoding.UTF8.GetBytes(str);
toC.netStream.Write(sendData, 0, sendData.Length);
//textBox2.Invoke(callb, "\r\n向服务器发送：\r\n\t" + sendMessages);
//textBox2.Invoke(callb, "\r\n=====发送完毕=====");
}
catch (Exception ex)
{
writeLog("连接服务器请求失败：" + ex.Message);
if (toC.netStream != null)
{
toC.netStream.Dispose();
}
if (toC.client != null)
{
toC.client.Close();
}
userList.Remove(toC);
}
}
private void startTalking(UserClient client)
{
while (listenEnable)
{
try
{
int readLen = client.client.Available;
if (readLen > 0)
{
byte[] getData = new byte[2048];
client.netStream.Read(getData, 0, getData.Length);
string getMsg = Encoding.UTF8.GetString(getData);
//writeLog(client.endPoint.ToString()+"\r\n\t"+ getMsg);
readMessage(client, getMsg);
//textBox1.Invoke(cbSetTextBox, "从" + client.Client.LocalEndPoint + "接收消息为：\r\n\t" + getMsg);
}
}
catch (Exception ex)
{
writeLog("与会话出现");
return;
}
}
}
private void readMessage(UserClient client, string str)
{
XmlDocument xmlDoc = new XmlDocument();
try
{
xmlDoc.LoadXml(str);
XmlElement rootNode = xmlDoc.DocumentElement;
string stype = rootNode.GetAttribute("type"); //接收到的数据类型、用途
// 连接请求处理及用户认证
if (String.Equals("Connect", stype, StringComparison.OrdinalIgnoreCase))
{
XmlNode node = rootNode.SelectSingleNode("From");
client.ip = IPAddress.Parse(node.SelectSingleNode("IPAddress").InnerText);
client.port = Convert.ToInt32(node.SelectSingleNode("Port").InnerText.ToString());
node = rootNode.SelectSingleNode("Data");
string userid = node.SelectSingleNode("UserID").InnerText;
client.id = Int32.Parse(userid);
string password = EncryptSha256(node.SelectSingleNode("Password").InnerText);
foreach (UserClient cli in userList)
{
if (client.id == cli.id)
{
this.sendConnectingMsg(client, 2);
writeLog("<" + client.id.ToString() + ">(" + client.ip.ToString() + ":"
+ client.port.ToString() + ") 重复登陆失败");
return;
}
}
try
{
XmlDocument xmlDocUserL = new XmlDocument();
xmlDocUserL.Load(UListFilePath);
XmlElement ulRootNode = xmlDocUserL.DocumentElement;
foreach (XmlNode user in ulRootNode.SelectNodes("User"))
{
if (userid == user.SelectSingleNode("UserID").InnerText)
{
if (password.Equals(user.SelectSingleNode("Password").InnerText))
{
client.name = user.SelectSingleNode("Name").InnerText;
client.id = Int32.Parse(user.SelectSingleNode("UserID").InnerText);
this.sendConnectingMsg(client, 1);
ContUserList(1, client);
writeLog("用户 " + client.name + "<" + client.id.ToString() + "> 从"
+ client.ip.ToString() + ":" + client.port.ToString() + "登陆成功");
freshOnlineToEveryone();
return;
}
else
{
writeLog("<" + client.id.ToString() + ">(" + client.ip.ToString() + ":"
+ client.port.ToString() + ") 尝试连接失败");
this.sendConnectingMsg(client, 0); //密码错误
return;
}
}
}
this.sendConnectingMsg(client, -1); //没有该用户错误
return;
}
catch (Exception ex)
{
writeLog("用户认证异常" + ex.Message);
}
}
// 断开连接处理
else if (String.Equals("ConnectOver", stype, StringComparison.OrdinalIgnoreCase))
{
XmlNode node = rootNode.SelectSingleNode("Data");
int userid = Int32.Parse(node.SelectSingleNode("UserID").InnerText);
UserClient cli = new UserClient();
foreach (UserClient clitmp in userList)
{
if (clitmp.id == userid)
{
writeLog("用户 " + clitmp.name + " 离开");
cli = clitmp;
break;
}
}
if (cli != null)
{
ContUserList(2, cli);
}
freshOnlineToEveryone();
}
// 正常聊天处理
else if (String.Equals("clientChat", stype, StringComparison.OrdinalIgnoreCase))
{
XmlNode node = rootNode.SelectSingleNode("From");
client.ip = IPAddress.Parse(node.SelectSingleNode("IPAddress").InnerText);
client.port = Convert.ToInt32(node.SelectSingleNode("Port").InnerText.ToString());
client.name = node.SelectSingleNode("Name").InnerText;
client.id = Int32.Parse(node.SelectSingleNode("UserID").InnerText);
StringBuilder getmsg = new StringBuilder();
getmsg.Append(client.name);
getmsg.Append("<");
getmsg.Append(client.id.ToString() + "> 向 ");
node = rootNode.SelectSingleNode("To");
IPAddress toIP = IPAddress.Parse(node.SelectSingleNode("IPAddress").InnerText);
int toPort = Convert.ToInt32(node.SelectSingleNode("Port").InnerText);
getmsg.Append(node.SelectSingleNode("Name").InnerText);
int tmpid = Int32.Parse(node.SelectSingleNode("UserID").InnerText);
if (0 == tmpid)
{
getmsg.Append("<服务器> 发送：\r\n--> ");
node = rootNode.SelectSingleNode("Data");
getmsg.Append(node.SelectSingleNode("Text").InnerText);
writeLog(getmsg.ToString());
return;
}
int toUserid = Int32.Parse(node.SelectSingleNode("UserID").InnerText);
getmsg.Append("<" + node.SelectSingleNode("UserID").InnerText);
getmsg.Append("> 发送：\r\n--> ");
node = rootNode.SelectSingleNode("Data");
getmsg.Append(node.SelectSingleNode("Text").InnerText);
writeLog(getmsg.ToString());
foreach (UserClient toC in userList)
{
if (toC.id == toUserid)
{
sendMessageChat(toC, str);
}
}
}
// 用户注册处理
else if (String.Equals("Regist", stype, StringComparison.OrdinalIgnoreCase))
{
XmlNode node = rootNode.SelectSingleNode("Data");
string username = node.SelectSingleNode("Name").InnerText;
string password = node.SelectSingleNode("Password").InnerText;
try
{
XmlDocument xmlDocUserL = new XmlDocument();
xmlDocUserL.Load(UListFilePath);
XmlElement ulRootNode = xmlDocUserL.DocumentElement;
int maxID = 10000;
foreach (XmlNode user in ulRootNode.SelectNodes("User"))
{
int tmpint = Int32.Parse(user.SelectSingleNode("UserID").InnerText);
if (maxID < tmpint)
{
maxID = tmpint;
}
}
maxID++;
XmlElement nameNode = xmlDocUserL.CreateElement("Name");
nameNode.InnerText = username;
XmlElement idNode = xmlDocUserL.CreateElement("UserID");
idNode.InnerText = maxID.ToString();
XmlElement passwordNode = xmlDocUserL.CreateElement("Password");
passwordNode.InnerText = EncryptSha256(password);
XmlElement userNode = xmlDocUserL.CreateElement("User");
userNode.AppendChild(idNode);
userNode.AppendChild(nameNode);
userNode.AppendChild(passwordNode);
ulRootNode.AppendChild(userNode);
sendRegistMsg(client, maxID);
xmlDocUserL.Save(UListFilePath);
writeLog("添加新用户 " + username + "<" + maxID.ToString() + "> 成功");
return;
}
catch (Exception ex)
{
writeLog("添加用户异常：" + ex.Message);
}
}
else
{
writeLog("未知的数据类型");
}
}
catch (Exception ex)
{
writeLog("获取数据出现异常：" + ex.Message + "..." + str);
}
}