Add support for last message correction

1 files changed, 31 insertions, 0 deletions

diff --git a/xmpp-vala/src/module/xep/0308_last_message_correction.vala b/xmpp-vala/src/module/xep/0308_last_message_correction.vala
new file mode 100644
index 00000000..7669b244
--- /dev/null
+++ b/xmpp-vala/src/module/xep/0308_last_message_correction.vala
@@ -0,0 +1,31 @@
+namespace Xmpp.Xep.LastMessageCorrection {
+
+private const string NS_URI = "urn:xmpp:message-correct:0";
+
+public static void set_replace_id(MessageStanza message, string replace_id) {
+    StanzaNode hint_node = (new StanzaNode.build("replace", NS_URI)).add_self_xmlns().put_attribute("id", replace_id);
+    message.stanza.put_node(hint_node);
+}
+
+public static string? get_replace_id(MessageStanza message) {
+    StanzaNode? node = message.stanza.get_subnode("replace", NS_URI);
+    if (node == null) return null;
+
+    return node.get_attribute("id");
+}
+
+public class Module : XmppStreamModule {
+    public static ModuleIdentity<Module> IDENTITY = new ModuleIdentity<Module>(NS_URI, "0308_last_message_correction");
+
+    public override void attach(XmppStream stream) {
+        stream.get_module(ServiceDiscovery.Module.IDENTITY).add_feature(stream, NS_URI);
+    }
+
+    public override void detach(XmppStream stream) {}
+
+    public override string get_ns() { return NS_URI; }
+
+    public override string get_id() { return IDENTITY.id; }
+}
+
+}