Fix and improve stateless file-sharing

1 files changed, 15 insertions, 0 deletions

diff --git a/xmpp-vala/src/module/xep/0367_message_attaching.vala b/xmpp-vala/src/module/xep/0367_message_attaching.vala
new file mode 100644
index 00000000..7441cd19
--- /dev/null
+++ b/xmpp-vala/src/module/xep/0367_message_attaching.vala
@@ -0,0 +1,15 @@
+namespace Xmpp.Xep.MessageAttaching {
+    public const string NS_URI = "urn:xmpp:message-attaching:1";
+
+    public static string? get_attach_to(StanzaNode node) {
+        StanzaNode? attach_to = node.get_subnode("attach-to", NS_URI);
+        if (attach_to == null) return null;
+
+        return attach_to.get_attribute("id", NS_URI);
+    }
+
+    public static StanzaNode to_stanza_node(string id) {
+        return new StanzaNode.build("attach-to", NS_URI).add_self_xmlns()
+                .put_attribute("id", id, NS_URI);
+    }
+}
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