/// <summary>
/// Set User Information - Set's the local user information and the initial nickname the user has.
/// This is essentially only done when you connect to the server
/// </summary>
/// <param name="name"></param>
/// <param name="sender"></param>
/// <param name="msg"></param>
/// <returns></returns>
private bool SetUserInformation(string name, NetConnection sender, NetPipeMessage msg)
{
var userInfo = msg.GetMessage <UserInfoMessage>();
if (userInfo == null)
{
return(false);
}
// Default first channel as the selected channel.
CurrentChannel = userInfo.ChatChannels.First();
_chatChannels = userInfo.ChatChannels;
// update the channel list
UpdateChannelList(_chatChannels);
// assign current user as default
LocalUser = userInfo.UserData;
// set default to be current channel and load chat history
OnChannelSet(CurrentChannel);
_chatTerminal.Print("My nickname is: " + userInfo.UserData.Nickname + ", to change it type /nickname yournickname also /help shows you a list of commands.");
return(true);
}
/// <summary>
/// OnChannelUpdate Network Handler
/// Called when something changes in a channel, this is only executed on the clients.
/// </summary>
/// <param name="name"></param>
/// <param name="sender"></param>
/// <param name="msg"></param>
/// <returns></returns>
private bool OnChannelUpdate(string name, NetConnection sender, NetPipeMessage msg)
{
var channel = msg.GetMessage <ChatChannel>();
if (channel == null)
{
return(true); // error
}
// check if channel already exists
var localChannel = GetChannelByName(channel.Name);
if (localChannel != null)
{
localChannel.Participants = channel.Participants;
// only update visual list if that channel is selected.
if (CurrentChannel == localChannel)
{
OnChannelUserUpdate(localChannel);
}
}
else
{
// add channel to list, participants came from server so it is trustworthy.
_chatChannels.Add(channel);
// update the channel list
UpdateChannelList(_chatChannels);
}
return(false);
}
/// <summary>
/// Say Message Handler - When server tells us someone has sent a message.
/// </summary>
/// <param name="name">the message name</param>
/// <param name="sender">the sender information (server)</param>
/// <param name="msg">the message which was sent across the network</param>
/// <returns></returns>
private bool SayMessageReceived(string name, NetConnection sender, NetPipeMessage msg)
{
// Retrieve the message
var chatMessage = msg.GetMessage <Message>();
// this can be null if someone is sending data which is erroneous or they're sending the wrong arguments
if (chatMessage == null)
{
return(false);
}
// filter text - bad words, smiley conversion
chatMessage.Text = FilterHandler(chatMessage.Text);
// message is for other channel
if (chatMessage.ChannelName == CurrentChannel.Name)
{
_chatTerminal.Print(chatMessage.User.Nickname + ": " + chatMessage.Text);
}
// get channel by name
var sourceChannel = GetChannelByName(chatMessage.ChannelName);
sourceChannel.Messages.Add(chatMessage);
Log.Information("Recieved message:" + chatMessage.Text);
Debug.Log("Nickname said: " + chatMessage.Text);
return(true);
}
/// <summary>
/// Request nickname handler for client
/// </summary>
/// <param name="name"></param>
/// <param name="sender"></param>
/// <param name="msg"></param>
/// <returns></returns>
public bool NicknameChangeRequest(string name, NetConnection sender, NetPipeMessage msg)
{
var message = msg.GetMessage <User>();
if (message != null)
{
var newNickname = CleanString(message.Nickname);
if (newNickname.Length > 3)
{
var senderUser = GetUser(sender);
var oldnickname = senderUser.Nickname;
if (Users.SingleOrDefault(data => data.Key.Nickname == newNickname).Key != null)
{
Log.Information("Someone tried to change their username and it's already in use.");
return(false);
}
else
{
// update nickname
senderUser.Nickname = newNickname;
// tell client they have new nickname - only tell the exact client
_server.NetworkPipe.SendClient(sender, "OnServerNotification", new Message
{
Text = "Nickname changed to " + senderUser.Nickname
});
var channels = GetChannelByUser(senderUser);
// update all channels with the new nickname
foreach (var channel in channels)
{
_server.NetworkPipe.SendReliable("ChannelUpdate", channel);
}
Log.Information("user nickname changed from {oldname} to {nickname}", oldnickname, senderUser.Nickname);
}
}
else
{
// tell client they have new nickname - only tell the exact client
_server.NetworkPipe.SendClient(sender, "OnServerNotification", new Message
{
Text = "Sorry the new nickname is not long enough"
});
Log.Information("Someone tried to change their username and it wasn't long enough.");
}
return(false);
}
return(true);
}
/// <summary>
/// On Nickname Response
/// </summary>
/// <param name="name"></param>
/// <param name="sender"></param>
/// <param name="msg"></param>
/// <returns></returns>
private bool OnServerNotification(string name, NetConnection sender, NetPipeMessage msg)
{
var message = msg.GetMessage <Message>();
if (message != null)
{
_chatTerminal.Print("[server] " + message.Text);
}
return(true);
}
public bool RequestInviteUser(string name, NetConnection sender, NetPipeMessage msg)
{
var invite = msg.GetMessage <UserChannelInvite>();
if (invite != null)
{
Log.Information("Processing channel invite {channel} nickname {nickname}", invite.ChannelName, invite.Nickname);
var user = GetuserByName(invite.Nickname);
var channel = GetChannelByName(invite.ChannelName);
if (channel.Participants.Contains(user))
{
// tell client that this user is already in this group
_server.NetworkPipe.SendClient(sender, "OnServerNotification", new Message
{
Text = "Sorry, you can't add a user to the same group twice."
});
return(false);
}
if (channel == _globalChannel)
{
_server.NetworkPipe.SendClient(sender, "OnServerNotification", new Message
{
Text = "Sorry, you can't invite users to the global channel."
});
return(false);
}
if (user != null && channel != null)
{
Log.Information("Channel found {channel}, and user found too {user}", channel.Name, user.Nickname);
channel.Participants.Add(user);
// send all the members of the channel an update with the new member
_server.NetworkPipe.SendReliable("ChannelUpdate", channel, GetParticipantConnections(channel));
// tell client that this user is already in this group
_server.NetworkPipe.SendClient(sender, "OnServerNotification", new Message
{
Text = "New user added to the group: " + user.Nickname
});
}
else
{
Log.Error("Failed to find channel or user {invite}", invite);
}
}
return(false);
}
public bool RequestNewGroup(string name, NetConnection sender, NetPipeMessage msg)
{
var channel = msg.GetMessage <ChatChannel>();
if (channel != null)
{
Log.Information("New group requested: {name}", channel.Name);
// make sure channel doesn't already exist
if (GetChannelByName(channel.Name) == null)
{
Channels.Add(channel);
channel.Participants = new List <User>
{
GetUser(sender)
};
// add this user to the channel
_server.NetworkPipe.SendClient(sender, "ChannelUpdate", channel);
Log.Information("Group creation completed: {name}", channel.Name);
// tell client we created the group, and tell them what to do.
_server.NetworkPipe.SendClient(sender, "OnServerNotification", new Message
{
Text = channel.Name + " <b>group created</b>, it's now in the tabs at the top, click on it! then /invite anotherusername to invite users to your group."
});
}
else
{
// tell client we couldn't make a group with that name
_server.NetworkPipe.SendClient(sender, "OnServerNotification", new Message
{
Text = "Sorry a group with that name already exists " + channel.Name
});
Log.Information("Group already exists error {name}", channel.Name);
// channel can't be made it already exists.
// notify("channel can't be created already exists, try another name")
}
}
return(false);
}
/// <summary>
/// Say Text Handler
/// </summary>
/// <param name="name"></param>
/// <param name="sender"></param>
/// <param name="msg"></param>
public bool SayMessageReceived(string name, NetConnection sender, NetPipeMessage msg)
{
// Retrieve the message
var chatMessage = msg.GetMessage <Message>();
// this can be null if someone is sending data which is erroneous or they're sending the wrong arguments
if (chatMessage == null)
{
return(false);
}
// get the sender user
var senderUser = GetUser(sender);
// make sure this user has been registered properly and has a valid session
if (senderUser != null)
{
// apply the user info to the message (only safe to do serverside)
chatMessage.User = senderUser;
Log.Debug("Found valid user for {sender} attaching User to message for retransmission", sender);
}
else
{
// exit, someone is probably trying to fake being another user
Log.Error("Someone caught trying to be another user: {sender}", sender);
return(false);
}
// process message and send to clients which should recieve the message
var server = GameServiceManager.GetService <NetworkServer>();
Log.Information("Recieved message:" + chatMessage.Text);
// todo: add other channel support
// if channel is not supplied then it's for the global channel
var channel = GetChannelByName(chatMessage.ChannelName) ?? _globalChannel;
if (channel == null)
{
Log.Error("Error channel not found");
}
// add conversation message to history
channel.Messages.Add(chatMessage);
var participantsCount = channel.Participants.Count;
var userConnections = new List <NetConnection>();
// send message to all participants of the channel
foreach (var user in channel.Participants)
{
if (Users.ContainsKey(user))
{
userConnections.Add(Users[user]);
}
}
// send message to all clients
server.NetworkPipe.SendReliable("say", chatMessage, userConnections);
return(true);
}