From 38944d702331bb9d7a91d8ed05a33c935562e3c0 Mon Sep 17 00:00:00 2001
From: fiaxh <git@lightrise.org>
Date: Thu, 4 Nov 2021 17:32:28 +0100
Subject: [PATCH] Add Jingle Raw UDP Transport Method to xmpp-vala

---
 .../src/module/xep/0177_jingle_raw_udp.vala   | 118 ++++++++++++++++++
 1 file changed, 118 insertions(+)
 create mode 100644 xmpp-vala/src/module/xep/0177_jingle_raw_udp.vala

diff --git a/xmpp-vala/src/module/xep/0177_jingle_raw_udp.vala b/xmpp-vala/src/module/xep/0177_jingle_raw_udp.vala
new file mode 100644
index 00000000..200cdfa9
--- /dev/null
+++ b/xmpp-vala/src/module/xep/0177_jingle_raw_udp.vala
@@ -0,0 +1,118 @@
+using Gee;
+using Xmpp.Xep;
+using Xmpp;
+
+namespace Xmpp.Xep.JingleRawUdp {
+
+    public const string NS_URI = "urn:xmpp:jingle:transports:raw-udp:1";
+
+    public delegate Gee.List<string> GetLocalIpAddresses();
+
+    public class Module : XmppStreamModule, Jingle.Transport {
+        public static ModuleIdentity<Module> IDENTITY = new ModuleIdentity<Module>(NS_URI, "0177_jingle_raw_udp");
+
+        private GetLocalIpAddresses? get_local_ip_addresses_impl = null;
+
+        public override void attach(XmppStream stream) {
+            stream.get_module(Jingle.Module.IDENTITY).register_transport(this);
+            stream.get_module(ServiceDiscovery.Module.IDENTITY).add_feature(stream, NS_URI);
+        }
+        public override void detach(XmppStream stream) {
+            stream.get_module(ServiceDiscovery.Module.IDENTITY).remove_feature(stream, NS_URI);
+        }
+
+        public override string get_ns() { return NS_URI; }
+        public override string get_id() { return IDENTITY.id; }
+
+        public async bool is_transport_available(XmppStream stream, uint8 components, Jid full_jid) {
+            return yield stream.get_module(ServiceDiscovery.Module.IDENTITY).has_entity_feature(stream, full_jid, NS_URI);
+        }
+
+        public string ns_uri{ get { return NS_URI; } }
+        public Jingle.TransportType type_{ get { return Jingle.TransportType.DATAGRAM; } }
+        public int priority { get { return 1; } }
+
+        public void set_local_ip_address_handler(owned GetLocalIpAddresses get_local_ip_addresses) {
+            get_local_ip_addresses_impl = (owned)get_local_ip_addresses;
+        }
+
+        public Gee.List<string> get_local_ip_addresses() {
+            if (get_local_ip_addresses_impl == null) {
+                return Gee.List.empty();
+            }
+            return get_local_ip_addresses_impl();
+        }
+
+        public Jingle.TransportParameters create_transport_parameters(XmppStream stream, uint8 components, Jid local_full_jid, Jid peer_full_jid) {
+            return new TransportParameters(components, null);
+        }
+
+        public Jingle.TransportParameters parse_transport_parameters(XmppStream stream, uint8 components, Jid local_full_jid, Jid peer_full_jid, StanzaNode transport) throws Jingle.IqError {
+            return new TransportParameters(components, transport);
+        }
+    }
+
+    public class TransportParameters : Jingle.TransportParameters, Object {
+        public string ns_uri { get { return NS_URI; } }
+        public uint8 components { get; }
+
+        public Gee.List<Candidate> remote_candidates = new ArrayList<Candidate>();
+        public Gee.List<Candidate> own_candidates = new ArrayList<Candidate>();
+
+        public TransportParameters(uint8 components, StanzaNode? node = null) {
+//            this.components = components;
+            if (node != null) {
+                foreach (StanzaNode candidate_node in node.get_subnodes("candidate")) {
+                    Candidate candidate = new Candidate();
+                    string component_str = candidate_node.get_attribute("component");
+                    candidate.component = int.parse(component_str);
+                    string generation_str = candidate_node.get_attribute("generation");
+                    candidate.generation = int.parse(generation_str);
+                    candidate.id = candidate_node.get_attribute("generation");
+                    string ip_str = candidate_node.get_attribute("ip");
+                    candidate.ip = new InetAddress.from_string(ip_str);
+                    string port_str = candidate_node.get_attribute("port");
+                    candidate.port = int.parse(port_str);
+
+                    remote_candidates.add(candidate);
+                }
+            }
+        }
+
+        public void set_content(Jingle.Content content) {
+
+        }
+
+        public StanzaNode to_transport_stanza_node(string action_type) {
+            StanzaNode transport_node = new StanzaNode.build("transport", NS_URI).add_self_xmlns();
+            foreach (Candidate candidate in own_candidates) {
+                transport_node.put_node(new StanzaNode.build("candidate", NS_URI)
+                        .put_attribute("generation", candidate.generation.to_string())
+                        .put_attribute("id", candidate.id)
+                        .put_attribute("ip", candidate.ip.to_string())
+                        .put_attribute("port", candidate.port.to_string()));
+            }
+            return transport_node;
+        }
+
+        public void handle_transport_accept(StanzaNode transport) throws Jingle.IqError {
+
+        }
+
+        public void handle_transport_info(StanzaNode transport) throws Jingle.IqError {
+
+        }
+
+        public void create_transport_connection(XmppStream stream, Jingle.Content content) {
+
+        }
+    }
+
+    public class Candidate : Object {
+        public int component { get; set; }
+        public int generation { get; set; }
+        public string id { get; set; }
+        public InetAddress ip { get; set; }
+        public uint port { get; set; }
+    }
+}
\ No newline at end of file