/// <summary>
/// Handles message receiving and decryption of incoming messages.
/// </summary>
/// <param name="msg"></param>
public void Receive(Message msg)
{
foreach (SharedComponents.Client c in _onlineClients.Values)
{
if (c.Name == msg.Sender)
{
string output = "";
switch (_viewModel.SelectedCypher)
{
case (int)Cyphers.SimpleEncryption:
var cypher1 = new SimpleEncryption();
output = msg.Sender + " : " + cypher1.DecryptMessage(msg.Content, _viewModel.Key);
break;
case (int)Cyphers.Rijndael:
var cypher2 = new Rijndael();
output = msg.Sender + " : " + cypher2.DecryptMessage(msg.Content, _viewModel.Key);
break;
}
ListBoxItem item = MakeItem(c.AvatarID, output);
_viewModel.ChatMsgs.Add(item);
_messages.Add(msg.Content);
using (var terr = new ChatDataContainer())
{
var sender = terr.ChatUsersSet.Where(s => s.Username == msg.Sender).ToList();
var curUser = terr.ChatUsersSet.Where(s => s.Username == _viewModel.Name).ToList();
ChatData temp = new ChatData
{
Id = curUser[0].Id,
Sender = sender[0].Id,
Message = msg.Content,
RecTime = msg.Time,
ChatUsers = curUser[0]
};
_msgIds.Add(msg.Sender);
try
{
terr.ChatDataSet.Add(temp);
terr.SaveChanges();
}
catch (Exception e)
{
_viewModel.Name = e.ToString();
}
}
}
}
_viewModel.ScrollDown();
}
/// <summary>
/// This is the second important method, which creates
/// the proxy, subscribe to connection state events
/// and open a connection with the service
/// </summary>
public void Connect()
{
if (_channel == null)
{
try
{
_localClient = new SharedComponents.Client
{
Name = _viewModel.Name,
AvatarID = _viewModel.SelectedIndex
};
InstanceContext context = new InstanceContext(this);
//As the address in the configuration file is set to localhost
//we want to change it so we can call a service in internal
//network, or over internet
string servicePath = "/WPFHost/tcp";
string[] address = _viewModel.ConnectionIP.Split(':');
var binding = new NetTcpBinding("NetTcpBinding");
var endAdd = new EndpointAddress("net.tcp://" + address[0] + ":" + address[1] + servicePath);
_channel = new WcfChatClient(context, binding, endAdd);
_channel.Open();
_channel.InnerDuplexChannel.Faulted += InnerDuplexChannel_Faulted;
_channel.InnerDuplexChannel.Opened += InnerDuplexChannel_Opened;
_channel.InnerDuplexChannel.Closed += InnerDuplexChannel_Closed;
_channel.SetProxy(_channel.ChannelFactory.CreateChannel());
_channel.ConnectCompleted += proxy_ConnectCompleted;
//_channel.Connect(_localClient);
//_channel.ConnectCompleted += (proxy_ConnectCompleted);
_messages.Clear();
_msgIds.Clear();
//load all previous messages from database
_channel.ConnectAsync(_localClient);
//proxy_ConnectCompleted(output);
using (var temp = new ChatDataContainer())
{
var user = temp.ChatUsersSet.Where(s => s.Username == _viewModel.Name).ToList();
if (user.Count == 0)
{
var newuser = new ChatUsers
{
AvatarID = _viewModel.SelectedIndex,
Username = _viewModel.Name
};
temp.ChatUsersSet.Add(newuser);
temp.SaveChanges();
}
var cur = temp.ChatUsersSet.SingleOrDefault(t => t.Username == _viewModel.Name);
if (cur != null)
{
long id = cur.Id;
var userlist = temp.ChatUsersSet.Select(s => new { ID = s.Id, Avatar = s.AvatarID, Name = s.Username });
foreach (var row in temp.ChatDataSet.Where(s => s.Id == id))
{
var currentUser = userlist.Where(s => s.ID == row.Id).ToList();
ListBoxItem item = MakeItem(currentUser[0].Avatar, currentUser[0].Name + " : " + row.Message);
_viewModel.ChatMsgs.Add(item);
_messages.Add(row.Message);
_msgIds.Add(currentUser[0].Name);
_viewModel.ScrollDown();
}
}
}
}
catch (Exception ex)
{
_viewModel.Name = ex.Message;
_viewModel.ChatStatusLabel = "Offline";
_viewModel.ConnectButtonIsEnabled = true;
}
}
else
{
HandleProxy();
}
}
