private void ProvideNames(NameRequestMessage message)
{
var names = new List <Name>
{
bob,
jane,
fred,
sandra
};
var provisioningResultMessage = new ProvisioningResultMessage <IEnumerable <Name> >(names.ToImmutableArray());
Sender.Tell(provisioningResultMessage);
}
/// <summary>
/// Receive message in loop and prepare answer
/// </summary>
/// <param name="client"></param>
static private void TalkToClient(TcpClient client)
{
while (true)
{
//if client has disconnected, remove him from the list
if (!client.Connected)
{
if (users.Keys.Contains(client))
{
Broadcast(new TextMessage(DateTime.Now, "Server", String.Format("User {0} disconnected", users[client])));
users.Remove(client);
Log(String.Format("User {0} disconnected", users[client]));
}
else
{
Log("Couldn't register user");
}
break;
}
Message receivedMessage = TCPHelper.ReceiveMessage(client);
switch (receivedMessage.MessageHeader)
{
case Header.NameRequest:
//In case of name request, check is such name is taken, if so, reject this name
NameRequestMessage requestMessage = receivedMessage as NameRequestMessage;
if (users.Values.Contains(requestMessage.NameToRequest))
{
TCPHelper.SendMessage(new Message(Header.NameRejected, DateTime.Now, "Server"), client);
Log(String.Format("Username {0} taken", requestMessage.NameToRequest));
client.Close();
}
else
{
//If we already have a connected user with a name, change his name to a new one and send accept message. Also, tell every user about the name change
if (users.Keys.Contains(client))
{
string previousName = users[client];
users[client] = requestMessage.NameToRequest;
TCPHelper.SendMessage(new Message(Header.NameAccepted, DateTime.Now, "Server"), client);
Broadcast(new TextMessage(DateTime.Now, "Server", String.Format("User {0} is now {1}", previousName, users[client])));
Log(String.Format("User {0} is now {1}", previousName, users[client]));
}
//If this is a new user, add him to our user list, send him accept message, and also notify everyone about new user
else
{
users.Add(client, requestMessage.NameToRequest);
TCPHelper.SendMessage(new Message(Header.NameAccepted, DateTime.Now, "Server"), client);
Broadcast(new TextMessage(DateTime.Now, "Server", String.Format("User {0} has joined the chat", requestMessage.NameToRequest)));
Log(String.Format("User {0} has joined the chat", users[client]));
}
}
break;
//If we get a textmessage, send it to everyone
case Header.TextMessage:
TextMessage textMessage = receivedMessage as TextMessage;
if (users.Keys.Contains(client))
{
Broadcast(new TextMessage(DateTime.Now, users[client], textMessage.Text));
Log(new TextMessage(DateTime.Now, users[client], textMessage.Text).ToString());
}
else
{
Log("Uknown message: " + receivedMessage.ToString());
client.Close();
}
break;
//If we get an image, send it to everyone
case Header.ImageMessage:
ImageMessage imageMessage = receivedMessage as ImageMessage;
if (users.Keys.Contains(client))
{
Broadcast(new ImageMessage(DateTime.Now, users[client], imageMessage.Image));
Log(new TextMessage(DateTime.Now, users[client], "Image sent").ToString());
}
else
{
Log("Uknown message: " + receivedMessage.ToString());
client.Close();
}
break;
default:
Log("Uknown message: " + receivedMessage.ToString());
client.Close();
break;
}
}
}
