1 files changed, 89 insertions, 0 deletions
diff --git a/xmpp-vala/src/module/iq/module.vala b/xmpp-vala/src/module/iq/module.vala
new file mode 100644
index 00000000..b5c50bd7
--- /dev/null
+++ b/xmpp-vala/src/module/iq/module.vala
@@ -0,0 +1,89 @@
+using Gee;
+
+using Xmpp.Core;
+
+namespace Xmpp.Iq {
+    private const string NS_URI = "jabber:client";
+
+    public class Module : XmppStreamNegotiationModule {
+        public const string ID = "iq_module";
+
+        private HashMap<string, ResponseListener> responseListeners = new HashMap<string, ResponseListener>();
+        private HashMap<string, ArrayList<Handler>> namespaceRegistrants = new HashMap<string, ArrayList<Handler>>();
+
+        public void send_iq(XmppStream stream, Iq.Stanza iq, ResponseListener? listener = null) {
+            stream.write(iq.stanza);
+            if (listener != null) {
+                responseListeners.set(iq.id, listener);
+            }
+        }
+
+        public void register_for_namespace(string namespace, Handler module) {
+            if (!namespaceRegistrants.has_key(namespace)) {
+                namespaceRegistrants.set(namespace, new ArrayList<Handler>());
+            }
+            namespaceRegistrants[namespace].add(module);
+        }
+
+        public override void attach(XmppStream stream) {
+            stream.received_iq_stanza.connect(on_received_iq_stanza);
+        }
+
+        public override void detach(XmppStream stream) {
+            stream.received_iq_stanza.disconnect(on_received_iq_stanza);
+        }
+
+        public static Module? get_module(XmppStream stream) {
+            return (Module?) stream.get_module(NS_URI, ID);
+        }
+
+        public static void require(XmppStream stream) {
+            if (get_module(stream) == null) stream.add_module(new Iq.Module());
+        }
+
+        public override bool mandatory_outstanding(XmppStream stream) { return false; }
+
+        public override bool negotiation_active(XmppStream stream) { return false; }
+
+        public override string get_ns() { return NS_URI; }
+        public override string get_id() { return ID; }
+
+        private void on_received_iq_stanza(XmppStream stream, StanzaNode node) {
+            Iq.Stanza iq = new Iq.Stanza.from_stanza(node, Bind.Flag.has_flag(stream) ? Bind.Flag.get_flag(stream).my_jid : null);
+
+            if (iq.type_ == Iq.Stanza.TYPE_RESULT || iq.is_error()) {
+                if (responseListeners.has_key(iq.id)) {
+                    ResponseListener? listener = responseListeners.get(iq.id);
+                    if (listener != null) {
+                        listener.on_result(stream, iq);
+                    }
+                    responseListeners.unset(iq.id);
+                }
+            } else {
+                ArrayList<StanzaNode> children = node.get_all_subnodes();
+                if (children.size == 1 && namespaceRegistrants.has_key(children[0].ns_uri)) {
+                    ArrayList<Handler> handlers = namespaceRegistrants[children[0].ns_uri];
+                    foreach (Handler handler in handlers) {
+                        if (iq.type_ == Iq.Stanza.TYPE_GET) {
+                            handler.on_iq_get(stream, iq);
+                        } else if (iq.type_ == Iq.Stanza.TYPE_SET) {
+                            handler.on_iq_set(stream, iq);
+                        }
+                    }
+                } else {
+                    Iq.Stanza unaviable_error =  new Iq.Stanza.error(iq, new StanzaNode.build("service-unaviable", "urn:ietf:params:xml:ns:xmpp-stanzas").add_self_xmlns());
+                    send_iq(stream, unaviable_error);
+                }
+            }
+        }
+    }
+
+    public interface Handler : Object {
+        public abstract void on_iq_get(XmppStream stream, Iq.Stanza iq);
+        public abstract void on_iq_set(XmppStream stream, Iq.Stanza iq);
+    }
+
+    public interface ResponseListener : Object {
+        public abstract void on_result(XmppStream stream, Iq.Stanza iq);
+    }
+}