Add initial Jingle Message Initiation (XEP-0353) support

Co-authored-by: Marvin W <git@larma.de>

2 files changed, 101 insertions, 0 deletions

diff --git a/xmpp-vala/src/module/bind.vala b/xmpp-vala/src/module/bind.vala
index 89398bfb..4df8881a 100644
--- a/xmpp-vala/src/module/bind.vala
+++ b/xmpp-vala/src/module/bind.vala
@@ -69,6 +69,10 @@ namespace Xmpp.Bind {
         public Jid? my_jid;
         public bool finished = false;
 
+        public static Jid? get_my_jid(XmppStream stream) {
+            return stream.get_flag(IDENTITY).my_jid;
+        }
+
         public override string get_ns() { return NS_URI; }
         public override string get_id() { return IDENTITY.id; }
     }
diff --git a/xmpp-vala/src/module/xep/0353_jingle_message_initiation.vala b/xmpp-vala/src/module/xep/0353_jingle_message_initiation.vala
new file mode 100644
index 00000000..acb2ba2e
--- /dev/null
+++ b/xmpp-vala/src/module/xep/0353_jingle_message_initiation.vala
@@ -0,0 +1,97 @@
+using Gee;
+
+namespace Xmpp.Xep.JingleMessageInitiation {
+    private const string NS_URI = "urn:xmpp:jingle-message:0";
+
+    public class Module : XmppStreamModule {
+        public static ModuleIdentity<Module> IDENTITY = new ModuleIdentity<Module>(NS_URI, "0353_jingle_message_initiation");
+
+        public signal void session_proposed(Jid from, Jid to, string sid, Gee.List<StanzaNode> descriptions);
+        public signal void session_retracted(Jid from, Jid to, string sid);
+        public signal void session_accepted(Jid from, string sid);
+        public signal void session_rejected(Jid from, Jid to, string sid);
+
+        public void send_session_accept_to_self(XmppStream stream, string sid) {
+            MessageStanza accepted_message = new MessageStanza() { to=Bind.Flag.get_my_jid(stream).bare_jid };
+            accepted_message.stanza.put_node(
+                    new StanzaNode.build("accept", NS_URI).add_self_xmlns()
+                            .put_attribute("id", sid, NS_URI));
+            stream.get_module(MessageModule.IDENTITY).send_message.begin(stream, accepted_message);
+        }
+
+        public void send_session_reject_to_self(XmppStream stream, string sid) {
+            MessageStanza accepted_message = new MessageStanza() { to=Bind.Flag.get_my_jid(stream).bare_jid };
+            accepted_message.stanza.put_node(
+                    new StanzaNode.build("reject", NS_URI).add_self_xmlns()
+                            .put_attribute("id", sid, NS_URI));
+            stream.get_module(MessageModule.IDENTITY).send_message.begin(stream, accepted_message);
+        }
+
+        public void send_session_proceed_to_peer(XmppStream stream, Jid to, string sid) {
+            MessageStanza accepted_message = new MessageStanza() { to=to };
+            accepted_message.stanza.put_node(
+                    new StanzaNode.build("proceed", NS_URI).add_self_xmlns()
+                            .put_attribute("id", sid, NS_URI));
+            stream.get_module(MessageModule.IDENTITY).send_message.begin(stream, accepted_message);
+        }
+
+        public void send_session_reject_to_peer(XmppStream stream, Jid to, string sid) {
+            MessageStanza accepted_message = new MessageStanza() { to=to };
+            accepted_message.stanza.put_node(
+                    new StanzaNode.build("reject", NS_URI).add_self_xmlns()
+                            .put_attribute("id", sid, NS_URI));
+            stream.get_module(MessageModule.IDENTITY).send_message.begin(stream, accepted_message);
+        }
+
+        private void on_received_message(XmppStream stream, MessageStanza message) {
+            Xep.MessageArchiveManagement.MessageFlag? mam_flag = Xep.MessageArchiveManagement.MessageFlag.get_flag(message);
+            if (mam_flag != null) return;
+
+            StanzaNode? mi_node = null;
+            foreach (StanzaNode node in message.stanza.sub_nodes) {
+                if (node.ns_uri == NS_URI) {
+                    mi_node = node;
+                }
+            }
+            if (mi_node == null) return;
+
+            switch (mi_node.name) {
+                case "accept":
+                case "proceed":
+                    if (!message.from.equals_bare(Bind.Flag.get_my_jid(stream))) return;
+                    session_accepted(message.from, mi_node.get_attribute("id"));
+                    break;
+                case "propose":
+                    ArrayList<StanzaNode> descriptions = new ArrayList<StanzaNode>();
+
+                    foreach (StanzaNode node in mi_node.sub_nodes) {
+                        if (node.name != "description") continue;
+                        descriptions.add(node);
+                    }
+
+                    if (descriptions.size > 0) {
+                        session_proposed(message.from, message.to, mi_node.get_attribute("id"), descriptions);
+                    }
+                    break;
+                case "retract":
+                    session_retracted(message.from, message.to, mi_node.get_attribute("id"));
+                    break;
+                case "reject":
+                    if (!message.from.equals_bare(Bind.Flag.get_my_jid(stream))) return;
+                    session_rejected(message.from, message.to, mi_node.get_attribute("id"));
+                    break;
+            }
+        }
+
+        public override void attach(XmppStream stream) {
+            stream.get_module(MessageModule.IDENTITY).received_message.connect(on_received_message);
+        }
+
+        public override void detach(XmppStream stream) {
+            stream.get_module(MessageModule.IDENTITY).received_message.disconnect(on_received_message);
+        }
+
+        public override string get_ns() { return NS_URI; }
+        public override string get_id() { return IDENTITY.id; }
+    }
+}