1 files changed, 70 insertions, 0 deletions
diff --git a/vala-xmpp/src/module/xep/0203_delayed_delivery.vala b/vala-xmpp/src/module/xep/0203_delayed_delivery.vala
new file mode 100644
index 00000000..528b0017
--- /dev/null
+++ b/vala-xmpp/src/module/xep/0203_delayed_delivery.vala
@@ -0,0 +1,70 @@
+using Xmpp.Core;
+
+namespace Xmpp.Xep.DelayedDelivery {
+    private const string NS_URI = "urn:xmpp:delay";
+
+    public class Module : XmppStreamModule {
+        public const string ID = "0203_delayed_delivery";
+
+        public static DateTime? get_send_time(Message.Stanza message) {
+            StanzaNode? delay_node = message.stanza.get_subnode("delay", NS_URI);
+            if (delay_node != null) {
+                string time = delay_node.get_attribute("stamp");
+                return new DateTime.utc(int.parse(time.substring(0, 4)),
+                    int.parse(time.substring(5, 2)),
+                    int.parse(time.substring(8, 2)),
+                    int.parse(time.substring(11, 2)),
+                    int.parse(time.substring(14, 2)),
+                    int.parse(time.substring(17, 2)));
+            } else {
+                return null;
+            }
+        }
+
+        public override void attach(XmppStream stream) {
+            Message.Module.get_module(stream).pre_received_message.connect(on_pre_received_message);
+        }
+
+        public override void detach(XmppStream stream) { }
+
+        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 Module());
+        }
+
+        public override string get_ns() { return NS_URI; }
+        public override string get_id() { return ID; }
+
+        private void on_pre_received_message(XmppStream stream, Message.Stanza message) {
+            StanzaNode? delay_node = message.stanza.get_subnode("delay", NS_URI);
+            if (delay_node != null) {
+                string time = delay_node.get_attribute("stamp");
+                DateTime datetime = new DateTime.utc(int.parse(time.substring(0, 4)),
+                    int.parse(time.substring(5, 2)),
+                    int.parse(time.substring(8, 2)),
+                    int.parse(time.substring(11, 2)),
+                    int.parse(time.substring(14, 2)),
+                    int.parse(time.substring(17, 2)));
+                message.add_flag(new MessageFlag(datetime));
+            }
+        }
+    }
+
+    public class MessageFlag : Message.MessageFlag {
+        public const string ID = "delayed_delivery";
+
+        DateTime datetime;
+
+        public MessageFlag(DateTime datetime) {
+            this.datetime = datetime;
+        }
+
+        public static MessageFlag? get_flag(Message.Stanza message) { return (MessageFlag) message.get_flag(NS_URI, ID); }
+
+        public override string get_ns() { return NS_URI; }
+        public override string get_id() { return ID; }
+    }
+}