public OnlineUser(ServerUser serverUser, NetworkStream stream)
{
this.UserName = serverUser.UserName;
this.NickName = serverUser.NickName;
this.Gender = serverUser.Gender;
this.Head = serverUser.Head;
this.Password = serverUser.Password;
this.Age = serverUser.Age;
this.Email = serverUser.Email;
this.FriendNames = serverUser.FriendNames;
this.StreamToRemote = stream;
}
public OnlineUser(ServerUser serverUser, NetworkStream stream)
{
this.UserName = serverUser.UserName;
this.NickName = serverUser.NickName;
this.Gender = serverUser.Gender;
this.Head = serverUser.Head;
this.Password = serverUser.Password;
this.Age = serverUser.Age;
this.Email = serverUser.Email;
this.FriendNames = serverUser.FriendNames;
this.StreamToRemote = stream;
}
private void AddUserToDatabase(UserDatabase database, string content)
{
//元数据content = username|password|nickname|gender|age|email|
//可能的错误：信息中带有“|”
string[] tokens = content.Split(new char[] { '|' });
ServerUser newUser = new ServerUser()
{
UserName = tokens[0],
Password = tokens[1],
NickName = tokens[2],
Gender = (GenderOption)Enum.Parse(typeof(GenderOption), tokens[3]),
Age = int.Parse(tokens[4]),
Email = tokens[5]
};
database.AddUser(newUser);
}
public object Clone()
{
ServerUser newServerUser = new ServerUser();
newServerUser.UserName = this.UserName;
newServerUser.NickName = this.NickName;
newServerUser.Gender = this.Gender;
newServerUser.Age = this.Age;
newServerUser.Email = this.Email;
newServerUser.Head = this.Head;
newServerUser.Password = this.Password;
newServerUser.FriendNames = new List<string>();
foreach (string name in this.FriendNames)
{
newServerUser.FriendNames.Add(name);
}
return newServerUser;
}
private bool CheckIdentity(string userName, string password)
{
if (database.ContainsUser(userName) == false)
{
return(false);
}
ServerUser currentUser = database.GetUser(userName);
if (currentUser.Password == password)
{
return(true);
}
else
{
return(false);
}
}
public object Clone()
{
ServerUser newServerUser = new ServerUser();
newServerUser.UserName = this.UserName;
newServerUser.NickName = this.NickName;
newServerUser.Gender = this.Gender;
newServerUser.Age = this.Age;
newServerUser.Email = this.Email;
newServerUser.Head = this.Head;
newServerUser.Password = this.Password;
newServerUser.FriendNames = new List <string>();
foreach (string name in this.FriendNames)
{
newServerUser.FriendNames.Add(name);
}
return(newServerUser);
}
//获取用户信息
public ServerUser GetUser(string userName)
{
var selectedUser = (from u in dataContext.DatabaseUser
where u.UserName == userName
select u).Single();
ServerUser newServerUser = new ServerUser()
{
UserName = selectedUser.UserName,
NickName = selectedUser.NickName,
Age = selectedUser.Age,
Email = selectedUser.Email,
Gender = (GenderOption)Enum.Parse(typeof(GenderOption), selectedUser.Gender),
Password = selectedUser.Password,
FriendNames = new List <string>()
};
foreach (UserFriend userFriend in selectedUser.UserFriend)
{
newServerUser.FriendNames.Add(userFriend.UserName);
}
return(newServerUser);
}
//添加用户
public void AddUser(ServerUser user)
{
DatabaseUser newUser = new DatabaseUser()
{
UserName = user.UserName,
NickName = user.NickName,
Gender = user.Gender.ToString(),
Email = user.Email,
Age = user.Age,
Password = user.Password
};
foreach (string username in user.FriendNames)
{
UserFriend newFriend = new UserFriend()
{
UserName = username
};
newUser.UserFriend.Add(newFriend);
}
dataContext.DatabaseUser.InsertOnSubmit(newUser);
dataContext.SubmitChanges();
}
//添加用户
public void AddUser(ServerUser user)
{
DatabaseUser newUser = new DatabaseUser()
{
UserName = user.UserName,
NickName = user.NickName,
Gender = user.Gender.ToString(),
Email = user.Email,
Age = user.Age,
Password = user.Password
};
foreach (string username in user.FriendNames)
{
UserFriend newFriend = new UserFriend() { UserName = username };
newUser.UserFriend.Add(newFriend);
}
dataContext.DatabaseUser.InsertOnSubmit(newUser);
dataContext.SubmitChanges();
}
//更新用户信息
public void UpdateUser(string userName, ServerUser newUser)
{
this.RemoveUser(userName);
this.AddUser(newUser);
}
//查询用户
public List<ServerUser> SearchUser(string userName, string nickName, string gender, int age)
{
List<ServerUser> usersFound = new List<ServerUser>();
if (this.ContainsUser(userName))
{
usersFound.Add(this.GetUser(userName));
}
//寻找昵称精确匹配
var nickNameMatches = from u in dataContext.DatabaseUser
where u.NickName == nickName
select u;
foreach (DatabaseUser user in nickNameMatches)
{
ServerUser newServerUser = new ServerUser()
{
UserName = user.UserName,
NickName = user.NickName,
Age = user.Age,
Email = user.Email,
Gender = (GenderOption)Enum.Parse(typeof(GenderOption), user.Gender),
Password = user.Password,
};
usersFound.Add(newServerUser);
}
//寻找昵称粗匹配
var nickNameRoughMatches = from u in dataContext.DatabaseUser
where u.NickName.Contains(nickName) && u.NickName != nickName
select u;
foreach (DatabaseUser user in nickNameRoughMatches)
{
ServerUser newServerUser = new ServerUser()
{
UserName = user.UserName,
NickName = user.NickName,
Age = user.Age,
Email = user.Email,
Gender = (GenderOption)Enum.Parse(typeof(GenderOption), user.Gender),
Password = user.Password,
};
usersFound.Add(newServerUser);
}
//按条件过滤
if (gender.ToLower() != "unlimited")
{
List<ServerUser> usersToDelete = new List<ServerUser>();
GenderOption filter =
(GenderOption)Enum.Parse(typeof(GenderOption), gender);
foreach (ServerUser user in usersFound)
{
if (user.Gender != filter)
{
usersToDelete.Add(user);
}
}
foreach (ServerUser userToDelete in usersToDelete)
{
usersFound.Remove(userToDelete);
}
}
if (age != -1)
{
List<ServerUser> usersToDelete = new List<ServerUser>();
foreach (ServerUser user in usersFound)
{
if (user.Age != age)
{
usersToDelete.Add(user);
}
}
foreach (ServerUser userToDelete in usersToDelete)
{
usersFound.Remove(userToDelete);
}
}
return usersFound;
}
//获取用户信息
public ServerUser GetUser(string userName)
{
var selectedUser = (from u in dataContext.DatabaseUser
where u.UserName == userName
select u).Single();
ServerUser newServerUser = new ServerUser()
{
UserName = selectedUser.UserName,
NickName = selectedUser.NickName,
Age = selectedUser.Age,
Email = selectedUser.Email,
Gender = (GenderOption)Enum.Parse(typeof(GenderOption), selectedUser.Gender),
Password = selectedUser.Password,
FriendNames = new List<string>()
};
foreach (UserFriend userFriend in selectedUser.UserFriend)
{
newServerUser.FriendNames.Add(userFriend.UserName);
}
return newServerUser;
}
private void AddUserToDatabase(UserDatabase database, string content)
{
//元数据content = username|password|nickname|gender|age|email|
//可能的错误：信息中带有“|”
string[] tokens = content.Split(new char[] { '|' });
ServerUser newUser = new ServerUser()
{
UserName = tokens[0],
Password = tokens[1],
NickName = tokens[2],
Gender = (GenderOption)Enum.Parse(typeof(GenderOption), tokens[3]),
Age = int.Parse(tokens[4]),
Email = tokens[5]
};
database.AddUser(newUser);
}
private void ProcessMessage(object sender, MessageReceivedEventArgs e)
{
string originalString = e.Content;
//从string获取Message
Message msg = GenerateMessage(originalString);
//注册
if (msg.Type == MessageType.REGISTER)
{
//数据库中有此用户，注册失败
if (database.ContainsUser(msg.Sender))
{
RespondInvalid(e);
}
//数据库中无此用户，注册成功
else
{
RespondOK(e);
AddUserToDatabase(database, msg.Content);
}
}
//登录
else if (msg.Type == MessageType.LOGIN)
{
string userName = msg.Sender;
string password = msg.Content;
if (CheckIdentity(userName, password) && !onlineUsers.Contains(userName))
{
//回应ok
RespondOK(e);
//将用户加入在线用户表
ServerUser fetchedServerUser = database.GetUser(userName);
OnlineUser newOnlineUser = new OnlineUser(fetchedServerUser, e.StreamToRemote);
onlineUsers.Add(userName, newOnlineUser);
//发送用户好友列表
SendFriendList(e, userName);
Thread.Sleep(100);
//发送用户群聊列表
SendGroupChatList(e, userName);
//发送用户在线好友列表，发送给在线好友JOIN信息
//SendOnlineFriendList(e, userName);
Thread.Sleep(200);
//发送用户离线时收到的信息
SendOfflineMessage(e, userName);
//触发在线用户改变事件
if (OnlineUserChanged != null)
{
OnlineUserChanged(this, new OnlineUserChangedEventArgs(newOnlineUser.UserName, "online"));
}
}
else
{
RespondInvalid(e);
}
}
//查询好友
else if (msg.Type == MessageType.FRIENDSEARCH)
{
string[] keyWords = msg.Content.Split(new char[] { '|' });
string userName = keyWords[0];
string nickName = keyWords[1];
string gender = keyWords[2]; //注意此处gender为string以方便查询
int age = -1;
if (keyWords[3].Trim().ToLower() != "unlimited")
{
age = int.Parse(keyWords[3].Trim());
}
List <ServerUser> usersFound = database.SearchUser(userName, nickName, gender, age);
if (usersFound.Count == 0)
{
Message newMessage = new Message(MessageType.FRIENDSEARCH, "SERVER", "empty");
FowardTo(e, msg.Sender, newMessage);
}
else
{
StringBuilder sb = new StringBuilder();
foreach (ServerUser userFound in usersFound)
{
string newUserName = userFound.UserName;
string newNickName = userFound.NickName;
string newGender = userFound.Gender.ToString();
string newAge = userFound.Age.ToString();
string newEmail = userFound.Email;
sb.AppendFormat("{0}|{1}|{2}|{3}|{4}|", newUserName, newNickName,
newGender, newAge, newEmail);
}
string newContent = sb.ToString();
Message newMessage = new Message(MessageType.FRIENDSEARCH, "SERVER", newContent);
FowardTo(e, msg.Sender, newMessage);
}
}
//私聊，转发给目标用户，写入总聊天记录
else if (msg.Type == MessageType.PRIV)
{
bool IsSuccess = FowardTo(e, msg.Receiver, msg);
if (IsSuccess)
{
database.AddMessage(msg);
RespondOK(e);
}
else
{
RespondInvalid(e);
}
}
//群聊，获取群信息，写入总聊天记录，转发给目标用户
else if (msg.Type == MessageType.GROUP)
{
int chatNumber = int.Parse(msg.Receiver);
ServerChat targetChat = database.GetChat(chatNumber);
foreach (string userName in targetChat.ChatUserNames)
{
if (userName != msg.Sender)
{
try
{
FowardTo(e, userName, msg);
}
catch
{
RespondInvalid(e);
}
}
}
database.AddMessage(msg);
RespondOK(e);
}
//用户离线
else if (msg.Type == MessageType.LEAVE)
{
string userName = msg.Sender;
OnlineUser currentUser = onlineUsers[userName] as OnlineUser;
//向在线好友发送离线消息
foreach (string friendName in currentUser.FriendNames)
{
if (onlineUsers.Contains(friendName))
{
FowardTo(e, friendName, msg);
}
}
//触发在线用户改变事件
if (OnlineUserChanged != null)
{
OnlineUserChanged(this,
new OnlineUserChangedEventArgs(onlineUsers[userName] as OnlineUser, "offline"));
}
//是否要在此关闭用户连接？
//将用户移出在线用户列表
onlineUsers.Remove(userName);
}
//好友申请消息
else if (msg.Type == MessageType.FRIENDREQUEST)
{
MakeFriend(msg.Sender, msg.Receiver);
bool IsSuccess = FowardTo(e, msg.Receiver, msg);
if (IsSuccess)
{
database.AddMessage(msg);
RespondOK(e);
}
else
{
RespondInvalid(e);
}
}
//创建群聊
else if (msg.Type == MessageType.CREATECHAT)
{
ServerChat newChat = new ServerChat(msg.Receiver);
string[] tokens = msg.Content.Split(new char[] { '|' });
foreach (string token in tokens)
{
if (!string.IsNullOrEmpty(token))
{
newChat.AddUserName(token.Trim());
}
}
//在数据库中创建群聊
try
{
database.AddChat(newChat);
}
catch
{
RespondInvalid(e);
}
//将信息转发给群聊参与者
StringBuilder sb = new StringBuilder();
sb.AppendFormat("{0}|", newChat.ChatNumber.ToString());
sb.AppendFormat("{0}|", newChat.ChatName);
foreach (var user in newChat.ChatUserNames)
{
sb.AppendFormat("{0}|", user);
}
Message msgToClient = new Message(MessageType.CREATECHAT, msg.SendTime,
msg.Sender, sb.ToString());
bool IsSuccess = true;
foreach (string userName in newChat.ChatUserNames)
{
IsSuccess = FowardTo(e, userName, msgToClient);
}
//回应
if (IsSuccess)
{
RespondOK(e);
}
else
{
RespondOK(e);
}
}
//离开群聊
else if (msg.Type == MessageType.LEAVECHAT)
{
int chatNumber = int.Parse(msg.Content);
string userName = msg.Sender;
//在数据库中更新群聊信息
try
{
database.DeleteChatUser(chatNumber, userName);
}
catch
{
RespondInvalid(e);
}
//向群聊者推送离开信息
ServerChat currentChat = database.GetChat(chatNumber);
bool IsSuccess = true;
foreach (string name in currentChat.ChatUserNames)
{
if (name != userName)
{
IsSuccess = FowardTo(e, name, msg);
}
}
if (IsSuccess)
{
RespondOK(e);
}
else
{
RespondOK(e);
}
}
}
//更新用户信息
public void UpdateUser(string userName, ServerUser newUser)
{
this.RemoveUser(userName);
this.AddUser(newUser);
}
//查询用户
public List <ServerUser> SearchUser(string userName, string nickName, string gender, int age)
{
List <ServerUser> usersFound = new List <ServerUser>();
if (this.ContainsUser(userName))
{
usersFound.Add(this.GetUser(userName));
}
//寻找昵称精确匹配
var nickNameMatches = from u in dataContext.DatabaseUser
where u.NickName == nickName
select u;
foreach (DatabaseUser user in nickNameMatches)
{
ServerUser newServerUser = new ServerUser()
{
UserName = user.UserName,
NickName = user.NickName,
Age = user.Age,
Email = user.Email,
Gender = (GenderOption)Enum.Parse(typeof(GenderOption), user.Gender),
Password = user.Password,
};
usersFound.Add(newServerUser);
}
//寻找昵称粗匹配
var nickNameRoughMatches = from u in dataContext.DatabaseUser
where u.NickName.Contains(nickName) && u.NickName != nickName
select u;
foreach (DatabaseUser user in nickNameRoughMatches)
{
ServerUser newServerUser = new ServerUser()
{
UserName = user.UserName,
NickName = user.NickName,
Age = user.Age,
Email = user.Email,
Gender = (GenderOption)Enum.Parse(typeof(GenderOption), user.Gender),
Password = user.Password,
};
usersFound.Add(newServerUser);
}
//按条件过滤
if (gender.ToLower() != "unlimited")
{
List <ServerUser> usersToDelete = new List <ServerUser>();
GenderOption filter =
(GenderOption)Enum.Parse(typeof(GenderOption), gender);
foreach (ServerUser user in usersFound)
{
if (user.Gender != filter)
{
usersToDelete.Add(user);
}
}
foreach (ServerUser userToDelete in usersToDelete)
{
usersFound.Remove(userToDelete);
}
}
if (age != -1)
{
List <ServerUser> usersToDelete = new List <ServerUser>();
foreach (ServerUser user in usersFound)
{
if (user.Age != age)
{
usersToDelete.Add(user);
}
}
foreach (ServerUser userToDelete in usersToDelete)
{
usersFound.Remove(userToDelete);
}
}
return(usersFound);
}