Add External Service Discovery (XEP-0215) support

1 files changed, 49 insertions, 0 deletions

diff --git a/xmpp-vala/src/module/xep/0215_external_service_discovery.vala b/xmpp-vala/src/module/xep/0215_external_service_discovery.vala
new file mode 100644
index 00000000..07c3f71c
--- /dev/null
+++ b/xmpp-vala/src/module/xep/0215_external_service_discovery.vala
@@ -0,0 +1,49 @@
+using Gee;
+
+namespace Xmpp.Xep.ExternalServiceDiscovery {
+
+    private const string NS_URI = "urn:xmpp:extdisco:2";
+
+    public static async Gee.List<Service> request_services(XmppStream stream) {
+        Iq.Stanza request_iq = new Iq.Stanza.get((new StanzaNode.build("services", NS_URI)).add_self_xmlns()) { to=stream.remote_name };
+        Iq.Stanza response_iq = yield stream.get_module(Iq.Module.IDENTITY).send_iq_async(stream, request_iq);
+
+        ArrayList<Service> ret = new ArrayList<Service>();
+        if (response_iq.is_error()) return ret;
+        StanzaNode? services_node = response_iq.stanza.get_subnode("services", NS_URI);
+        if (services_node == null) return ret;
+
+        Gee.List<StanzaNode> service_nodes = services_node.get_subnodes("service", NS_URI);
+        foreach (StanzaNode service_node in service_nodes) {
+            Service service = new Service();
+            service.host = service_node.get_attribute("host", NS_URI);
+            string? port_str = service_node.get_attribute("port", NS_URI);
+            if (port_str != null) service.port = int.parse(port_str);
+            service.ty = service_node.get_attribute("type", NS_URI);
+
+            if (service.host == null || service.ty == null || port_str == null) continue;
+
+            service.username = service_node.get_attribute("username", NS_URI);
+            service.password = service_node.get_attribute("password", NS_URI);
+            service.transport = service_node.get_attribute("transport", NS_URI);
+            service.name = service_node.get_attribute("name", NS_URI);
+            string? restricted_str = service_node.get_attribute("restricted", NS_URI);
+            if (restricted_str != null) service.restricted = bool.parse(restricted_str);
+            ret.add(service);
+        }
+        return ret;
+    }
+
+    public class Service {
+        public string host { get; set; }
+        public uint port { get; set; }
+        public string ty { get; set; }
+
+        public string username { get; set; }
+        public string password { get; set; }
+
+        public string transport { get; set; }
+        public string name { get; set; }
+        public bool restricted { get; set; }
+    }
+}