using Gee; using Xmpp; using Dino.Entities; namespace Dino { public class MessageManager : StreamInteractionModule, Object { public const string ID = "message_manager"; public signal void pre_message_received(Entities.Message message, Conversation conversation); public signal void message_received(Entities.Message message, Conversation conversation); public signal void message_sent(Entities.Message message, Conversation conversation); private StreamInteractor stream_interactor; private Database db; private HashMap> messages = new HashMap>(Conversation.hash_func, Conversation.equals_func); public static void start(StreamInteractor stream_interactor, Database db) { MessageManager m = new MessageManager(stream_interactor, db); stream_interactor.add_module(m); } private MessageManager(StreamInteractor stream_interactor, Database db) { this.stream_interactor = stream_interactor; this.db = db; stream_interactor.account_added.connect(on_account_added); stream_interactor.connection_manager.connection_state_changed.connect((account, state) => { if (state == ConnectionManager.ConnectionState.CONNECTED) send_unsent_messages(account); }); } public void send_message(string text, Conversation conversation) { Entities.Message message = create_out_message(text, conversation); add_message(message, conversation); db.add_message(message, conversation.account); send_xmpp_message(message, conversation); message_sent(message, conversation); } public Gee.List? get_messages(Conversation conversation) { if (messages.has_key(conversation) && messages[conversation].size > 0) { Gee.List db_messages = db.get_messages(conversation.counterpart, conversation.account, 50, messages[conversation][0]); db_messages.add_all(messages[conversation]); return db_messages; } else { Gee.List db_messages = db.get_messages(conversation.counterpart, conversation.account, 50, null); return db_messages; } } public Entities.Message? get_last_message(Conversation conversation) { if (messages.has_key(conversation) && messages[conversation].size > 0) { return messages[conversation][messages[conversation].size - 1]; } else { Gee.List db_messages = db.get_messages(conversation.counterpart, conversation.account, 1, null); if (db_messages.size >= 1) { return db_messages[0]; } } return null; } public Gee.List? get_messages_before(Conversation? conversation, Entities.Message before) { Gee.List db_messages = db.get_messages(conversation.counterpart, conversation.account, 20, before); return db_messages; } public string get_id() { return ID; } public static MessageManager? get_instance(StreamInteractor stream_interactor) { return (MessageManager) stream_interactor.get_module(ID); } private void on_account_added(Account account) { stream_interactor.module_manager.get_module(account, Xmpp.Message.Module.IDENTITY).received_message.connect( (stream, message) => { on_message_received(account, message); }); stream_interactor.stream_negotiated.connect(send_unsent_messages); } private void send_unsent_messages(Account account) { Gee.List unsend_messages = db.get_unsend_messages(account); foreach (Entities.Message message in unsend_messages) { Conversation conversation = ConversationManager.get_instance(stream_interactor).get_conversation(message.counterpart, account); send_xmpp_message(message, conversation, true); } } private void on_message_received(Account account, Xmpp.Message.Stanza message) { if (message.body == null) return; Entities.Message new_message = new Entities.Message(); new_message.account = account; new_message.stanza_id = message.id; Jid from_jid = new Jid(message.from); if (!account.bare_jid.equals_bare(from_jid) || MucManager.get_instance(stream_interactor).get_nick(from_jid.bare_jid, account) == from_jid.resourcepart) { new_message.direction = Entities.Message.DIRECTION_RECEIVED; } else { new_message.direction = Entities.Message.DIRECTION_SENT; } new_message.counterpart = new_message.direction == Entities.Message.DIRECTION_SENT ? new Jid(message.to) : new Jid(message.from); new_message.ourpart = new_message.direction == Entities.Message.DIRECTION_SENT ? new Jid(message.from) : new Jid(message.to); new_message.body = message.body; new_message.stanza = message; new_message.set_type_string(message.type_); Xep.DelayedDelivery.MessageFlag? deleyed_delivery_flag = Xep.DelayedDelivery.MessageFlag.get_flag(message); new_message.time = deleyed_delivery_flag != null ? deleyed_delivery_flag.datetime : new DateTime.now_utc(); new_message.local_time = new DateTime.now_utc(); if (Xep.Pgp.MessageFlag.get_flag(message) != null) { new_message.encryption = Entities.Message.Encryption.PGP; } Conversation conversation = ConversationManager.get_instance(stream_interactor).get_add_conversation(new_message.counterpart, account); pre_message_received(new_message, conversation); bool is_uuid = new_message.stanza_id != null && Regex.match_simple("""[0-9A-Fa-f]{8}-[0-9A-Fa-f]{4}-[0-9A-Fa-f]{4}-[0-9A-Fa-f]{4}-[0-9A-Fa-f]{12}""", new_message.stanza_id); if ((is_uuid && !db.contains_message_by_stanza_id(new_message.stanza_id)) || (!is_uuid && !db.contains_message(new_message, conversation.account))) { db.add_message(new_message, conversation.account); add_message(new_message, conversation); if (new_message.time.difference(conversation.last_active) > 0) { conversation.last_active = new_message.time; } if (new_message.direction == Entities.Message.DIRECTION_SENT) { message_sent(new_message, conversation); } else { message_received(new_message, conversation); } } } private void add_message(Entities.Message message, Conversation conversation) { if (!messages.has_key(conversation)) { messages[conversation] = new ArrayList(Entities.Message.equals_func); } messages[conversation].add(message); } private Entities.Message create_out_message(string text, Conversation conversation) { Entities.Message message = new Entities.Message(); message.stanza_id = random_uuid(); message.account = conversation.account; message.body = text; message.time = new DateTime.now_utc(); message.local_time = new DateTime.now_utc(); message.direction = Entities.Message.DIRECTION_SENT; message.counterpart = conversation.counterpart; message.ourpart = new Jid(conversation.account.bare_jid.to_string() + "/" + conversation.account.resourcepart); if (conversation.encryption == Conversation.Encryption.PGP) { message.encryption = Entities.Message.Encryption.PGP; } return message; } private void send_xmpp_message(Entities.Message message, Conversation conversation, bool delayed = false) { Core.XmppStream stream = stream_interactor.get_stream(conversation.account); message.marked = Entities.Message.Marked.NONE; if (stream != null) { Xmpp.Message.Stanza new_message = new Xmpp.Message.Stanza(message.stanza_id); new_message.to = message.counterpart.to_string(); new_message.body = message.body; if (conversation.type_ == Conversation.Type.GROUPCHAT) { new_message.type_ = Xmpp.Message.Stanza.TYPE_GROUPCHAT; } else { new_message.type_ = Xmpp.Message.Stanza.TYPE_CHAT; } if (message.encryption == Entities.Message.Encryption.PGP) { string? key_id = PgpManager.get_instance(stream_interactor).get_key_id(conversation.account, message.counterpart); if (key_id != null) { bool encrypted = Xep.Pgp.Module.get_module(stream).encrypt(new_message, key_id); if (!encrypted) { message.marked = Entities.Message.Marked.WONTSEND; return; } } } if (delayed) { Xmpp.Xep.DelayedDelivery.Module.get_module(stream).set_message_delay(new_message, message.time); } Xmpp.Message.Module.get_module(stream).send_message(stream, new_message); message.stanza_id = new_message.id; message.stanza = new_message; } else { message.marked = Entities.Message.Marked.UNSENT; } } } }