public Multicast(Unicast uni, MediaElement msgPop, ListView recentList)
{
multicastIP = new HostName(ChatScreen.applicationData.Multicast_ip);
multicastPort = ChatScreen.applicationData.Multicast_port;
unicast = uni;
recentMessageList = recentList;
messageSound = msgPop;
socketIsConnected = false;
packet = new MulticastPacket(ChatScreen.loggedInUser, true);
SetUpLocalFolder();
JoinMulticastGroup();
}
private async void SocketOnMessageReceived(DatagramSocket sender, DatagramSocketMessageReceivedEventArgs args)
{
Conversation WasSelected = null;
var myDisp = CoreApplication.MainView.CoreWindow.Dispatcher;
await myDisp.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
{
if (recentMessageList.SelectedItem != null)
{
WasSelected = recentMessageList.SelectedItem as Conversation;
}
});
var result = args.GetDataStream();
var resultStream = result.AsStreamForRead(1024);
using (var reader = new StreamReader(resultStream))
{
string encryptedString = await reader.ReadToEndAsync();
string text = StringCipher.Decrypt(encryptedString);
if (text.StartsWith("trending"))
{
string[] splitted = text.Split(new char[] { '~', '|', '*' });
string senderUsername = splitted[3];
string trendingMessage = splitted[6];
User trendingUser = null;
Message rMessage = new Message()
{
Type = Message.MessageType.Text, ReceivedSide = true, Text = trendingMessage, UnRead = true
};
var disp = CoreApplication.MainView.CoreWindow.Dispatcher;
await disp.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
{
foreach (User u in ChatScreen.availableUsers)
{
if (u.Username.Equals(senderUsername))
{
trendingUser = u;
}
}
if (trendingUser == null)
{
return; // change this to request the user later
}
if (trendingUser.Username.Equals(ChatScreen.loggedInUser.Username))
{
return;
}
rMessage.MsgUser = trendingUser;
foreach (Conversation c in ChatScreen.recentMessages)
{
if (c.MessageUser.Username.Equals("trending"))
{
if (c.LastMessage.MsgUser != null)
{
if (c.LastMessage.Text.Equals(rMessage.Text) && c.LastMessage.MsgUser.Username.Equals(trendingUser.Username))
{
return;
}
}
if (WasSelected == c)
{
rMessage.UnRead = false;
}
c.Messages.Add(rMessage);
c.LastMessage = rMessage;
if (ChatScreen.recentMessages.IndexOf(c) != 0)
{
ChatScreen.recentMessages.Move(ChatScreen.recentMessages.IndexOf(c), 0);
}
if (WasSelected != null)
{
recentMessageList.SelectedItem = WasSelected;
}
messageSound.Play();
StoreConversations();
return;
}
}
});
return;
}
User incomingUser = getUser(text);
//return if the user is same as the logged-in user
if (incomingUser.Username.Equals(ChatScreen.loggedInUser.Username))
{
return;
}
foreach (User u in ChatScreen.blockedUsers.ToList())
{
if (u.Username.Equals(incomingUser.Username))
{
return;
}
}
foreach (User u in ChatScreen.availableUsers.ToList())
{
if (u.Username.Equals(incomingUser.Username))
{
var d = CoreApplication.MainView.CoreWindow.Dispatcher;
await d.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
{
//ChatScreen.availableUsers.Remove(u);
u.CurrentStatus = incomingUser.CurrentStatus;
u.Name = incomingUser.Name;
u.Email = incomingUser.Email;
u.IPAddress = incomingUser.IPAddress;
if (incomingUser.CurrentStatus == User.Status.Offline)
{
ChatScreen.availableUsers.Remove(u);
}
});
if (getAck(text))
{
MulticastPacket p = new MulticastPacket(ChatScreen.loggedInUser, false);
await SendMessage(Parse(p), multicastPort);
if (!ChatScreen.loggedInUser.ProfilePicture.Equals("ms-appx:///Assets/default_profile_picture.png"))
{
await unicast.SendProfilePicture(incomingUser);
}
await unicast.RequestPicture(incomingUser);
}
return;
}
}
var dispatcher = CoreApplication.MainView.CoreWindow.Dispatcher;
await dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
{
ChatScreen.availableUsers.Add(incomingUser);
foreach (User u in (ChatScreen.favouriteUsers).ToList())
{
if (u.Username.Equals(incomingUser.Username))
{
ChatScreen.availableUsers.Move(ChatScreen.availableUsers.IndexOf(incomingUser), 0);
}
}
});
await UpdateMessageUser(incomingUser);
if (getAck(text))
{
MulticastPacket p = new MulticastPacket(ChatScreen.loggedInUser, false);
await SendMessage(Parse(p), multicastPort);
if (!ChatScreen.loggedInUser.ProfilePicture.Equals("ms-appx:///Assets/default_profile_picture.png"))
{
await unicast.SendProfilePicture(incomingUser);
}
await unicast.RequestPicture(incomingUser);
}
}
}
private string Parse(MulticastPacket p)
{
string s = "" + p.UserIP + ":" + p.Username + ":" + p.UserFullName + ":" + p.UserEmail + ":" + p.Status + ":" + p.Ack;
return(s);
}
public async Task update()
{
MulticastPacket p = new MulticastPacket(ChatScreen.loggedInUser, true);
await SendMessage(Parse(p), multicastPort);
}
