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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<Conversation, ArrayList<Entities.Message>> messages = new HashMap<Conversation, ArrayList<Entities.Message>>(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<Entities.Message>? get_messages(Conversation conversation) {
if (messages.has_key(conversation) && messages[conversation].size > 0) {
Gee.List<Entities.Message> 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<Entities.Message> 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<Entities.Message> 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<Entities.Message>? get_messages_before(Conversation? conversation, Entities.Message before) {
Gee.List<Entities.Message> 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.message_modules[account].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<Entities.Message> 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>(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;
}
}
}
}
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