request history since last known messages (#110)

request history since last known messages
when rejoining a room at startup

2 files changed, 15 insertions, 2 deletions

diff --git a/libdino/src/service/muc_manager.vala b/libdino/src/service/muc_manager.vala
index 7761373f..779783cc 100644
--- a/libdino/src/service/muc_manager.vala
+++ b/libdino/src/service/muc_manager.vala
@@ -35,7 +35,15 @@ public class MucManager : StreamInteractionModule, Object {
         if (stream == null) return;
         string nick_ = nick ?? account.bare_jid.localpart ?? account.bare_jid.domainpart;
         set_autojoin(stream, jid, nick_, password);
-        stream.get_module(Xep.Muc.Module.IDENTITY).enter(stream, jid.bare_jid.to_string(), nick_, password);
+
+        string history_since = null;
+        Conversation? conversation = stream_interactor.get_module(ConversationManager.IDENTITY).get_conversation(jid, account);
+        if (conversation != null) {
+            Entities.Message? last_message = stream_interactor.get_module(MessageStorage.IDENTITY).get_last_message(conversation);
+            if (last_message != null) history_since = last_message.time.to_string();
+        }
+        
+        stream.get_module(Xep.Muc.Module.IDENTITY).enter(stream, jid.bare_jid.to_string(), nick_, password, history_since);
     }
 
     public void part(Account account, Jid jid) {
diff --git a/xmpp-vala/src/module/xep/0045_muc/module.vala b/xmpp-vala/src/module/xep/0045_muc/module.vala
index 951ec7d1..a40f18d8 100644
--- a/xmpp-vala/src/module/xep/0045_muc/module.vala
+++ b/xmpp-vala/src/module/xep/0045_muc/module.vala
@@ -69,13 +69,18 @@ public class Module : XmppStreamModule {
     public signal void self_removed_from_room(XmppStream stream, string jid, StatusCode code);
     public signal void removed_from_room(XmppStream stream, string jid, StatusCode? code);
 
-    public void enter(XmppStream stream, string bare_jid, string nick, string? password) {
+    public void enter(XmppStream stream, string bare_jid, string nick, string? password, string? history_since) {
         Presence.Stanza presence = new Presence.Stanza();
         presence.to = bare_jid + "/" + nick;
         StanzaNode x_node = new StanzaNode.build("x", NS_URI).add_self_xmlns();
         if (password != null) {
             x_node.put_node(new StanzaNode.build("password", NS_URI).put_node(new StanzaNode.text(password)));
         }
+        if (history_since != null) {
+            StanzaNode history_node = new StanzaNode.build("history", NS_URI);
+            history_node.set_attribute("since", history_since);
+            x_node.put_node(history_node);
+        }
         presence.stanza.put_node(x_node);
 
         stream.get_flag(Flag.IDENTITY).start_muc_enter(bare_jid, presence.id);