public override void Connect()
{
base.Connect();
// If it's the first access for the user, we send the added meta message
if (FirstAccess)
{
SendMetaMessage(MetaState.Added);
}
// Now send a meta message, that the user is online
SendMetaMessage(MetaState.Online);
// Declare the queue for the user
var queue = GroupChat.SharedSecret.GroupChatName + "." + GroupChat.ChatMember;
Model.QueueDeclare(queue, true, false, false, null);
var consumer = new EventingBasicConsumer(Model);
consumer.Received += (obj, ea) =>
{
var message = BinaryFormatter <ChatMessage> .FromBinary(ea.Body);
// Proof that receiver is not the sender
if (message.Sender == GroupChat.ChatMember)
{
return;
}
// Decrypt the message
if (message.IsEncrypted)
{
message = GroupChat.Decrypt(message);
}
// if Message can't decrypted (due to wrong shared key etc)
if (message == null)
{
return;
}
// Check, if the plain text is a json meta object
var parsedJsonObject = JObject.Parse(message.PlainText);
if (parsedJsonObject.IsValid(MetaMessageSchema))
{
var metaMessage = JsonConvert.DeserializeObject <MetaMessage>(message.PlainText);
OnMetaMessageReceived?.Invoke(GroupChat.ChatMember, message.Sender, metaMessage);
}
else if (parsedJsonObject.IsValid(ContentMessageSchema))
{
var contentMessage = JsonConvert.DeserializeObject <TMessageObject>(message.PlainText);
OnMessageReceived?.Invoke(GroupChat.ChatMember, message.Sender, contentMessage);
}
};
Model.QueueBind(queue, "amq.fanout", GroupChat.SharedSecret.GroupChatName, null);
Model.BasicConsume(queue, true, string.Empty, false, true, null, consumer);
}