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authorMarvin W <git@larma.de>2021-03-21 12:41:06 +0100
committerMarvin W <git@larma.de>2021-03-21 12:41:06 +0100
commit5bd719a919eea613bd800bfca994156a4e9bb968 (patch)
tree6dedef83bc0a171e8ade9d95b939921f4afbe3c8
parent2b90fcc39a1079346d6c5e2bfff8987104da737a (diff)
downloaddino-5bd719a919eea613bd800bfca994156a4e9bb968.tar.gz
dino-5bd719a919eea613bd800bfca994156a4e9bb968.zip
Add ICE-UDP Jingle transport (XEP-0176) to xmpp-vala
Co-authored-by: fiaxh <git@lightrise.org>
-rw-r--r--xmpp-vala/src/module/xep/0176_jingle_ice_udp/candidate.vala93
-rw-r--r--xmpp-vala/src/module/xep/0176_jingle_ice_udp/jingle_ice_udp_module.vala36
-rw-r--r--xmpp-vala/src/module/xep/0176_jingle_ice_udp/transport_parameters.vala114
3 files changed, 243 insertions, 0 deletions
diff --git a/xmpp-vala/src/module/xep/0176_jingle_ice_udp/candidate.vala b/xmpp-vala/src/module/xep/0176_jingle_ice_udp/candidate.vala
new file mode 100644
index 00000000..a2988d90
--- /dev/null
+++ b/xmpp-vala/src/module/xep/0176_jingle_ice_udp/candidate.vala
@@ -0,0 +1,93 @@
+using Gee;
+using Xmpp.Xep;
+using Xmpp;
+
+public class Xmpp.Xep.JingleIceUdp.Candidate {
+ public uint8 component;
+ public uint8 foundation;
+ public uint8 generation;
+ public string id;
+ public string ip;
+ public uint8 network;
+ public uint16 port;
+ public uint32 priority;
+ public string protocol;
+ public string? rel_addr;
+ public uint16 rel_port;
+ public Type type_;
+
+ public static Candidate parse(StanzaNode node) throws Jingle.IqError {
+ Candidate candidate = new Candidate();
+ candidate.component = (uint8) node.get_attribute_uint("component");
+ candidate.foundation = (uint8) node.get_attribute_uint("foundation");
+ candidate.generation = (uint8) node.get_attribute_uint("generation");
+ candidate.id = node.get_attribute("id");
+ candidate.ip = node.get_attribute("ip");
+ candidate.network = (uint8) node.get_attribute_uint("network");
+ candidate.port = (uint16) node.get_attribute_uint("port");
+ candidate.priority = (uint32) node.get_attribute_uint("priority");
+ candidate.protocol = node.get_attribute("protocol");
+ candidate.rel_addr = node.get_attribute("rel-addr");
+ candidate.rel_port = (uint16) node.get_attribute_uint("rel-port");
+ candidate.type_ = Type.parse(node.get_attribute("type"));
+ return candidate;
+ }
+
+ public enum Type {
+ HOST, PRFLX, RELAY, SRFLX;
+ public static Type parse(string str) throws Jingle.IqError {
+ switch (str) {
+ case "host": return HOST;
+ case "prflx": return PRFLX;
+ case "relay": return RELAY;
+ case "srflx": return SRFLX;
+ default: throw new Jingle.IqError.BAD_REQUEST("Illegal ICE-UDP candidate type");
+ }
+ }
+ public string to_string() {
+ switch (this) {
+ case HOST: return "host";
+ case PRFLX: return "prflx";
+ case RELAY: return "relay";
+ case SRFLX: return "srflx";
+ default: assert_not_reached();
+ }
+ }
+ }
+
+ public StanzaNode to_xml() {
+ StanzaNode node = new StanzaNode.build("candidate", NS_URI)
+ .put_attribute("component", component.to_string())
+ .put_attribute("foundation", foundation.to_string())
+ .put_attribute("generation", generation.to_string())
+ .put_attribute("id", id)
+ .put_attribute("ip", ip)
+ .put_attribute("network", network.to_string())
+ .put_attribute("port", port.to_string())
+ .put_attribute("priority", priority.to_string())
+ .put_attribute("protocol", protocol)
+ .put_attribute("type", type_.to_string());
+ if (rel_addr != null) node.put_attribute("rel-addr", rel_addr);
+ if (rel_port != 0) node.put_attribute("rel-port", rel_port.to_string());
+ return node;
+ }
+
+ public bool equals(Candidate c) {
+ return equals_func(this, c);
+ }
+
+ public static bool equals_func(Candidate c1, Candidate c2) {
+ return c1.component == c2.component &&
+ c1.foundation == c2.foundation &&
+ c1.generation == c2.generation &&
+ c1.id == c2.id &&
+ c1.ip == c2.ip &&
+ c1.network == c2.network &&
+ c1.port == c2.port &&
+ c1.priority == c2.priority &&
+ c1.protocol == c2.protocol &&
+ c1.rel_addr == c2.rel_addr &&
+ c1.rel_port == c2.rel_port &&
+ c1.type_ == c2.type_;
+ }
+} \ No newline at end of file
diff --git a/xmpp-vala/src/module/xep/0176_jingle_ice_udp/jingle_ice_udp_module.vala b/xmpp-vala/src/module/xep/0176_jingle_ice_udp/jingle_ice_udp_module.vala
new file mode 100644
index 00000000..9ed494ff
--- /dev/null
+++ b/xmpp-vala/src/module/xep/0176_jingle_ice_udp/jingle_ice_udp_module.vala
@@ -0,0 +1,36 @@
+using Gee;
+using Xmpp.Xep;
+using Xmpp;
+
+namespace Xmpp.Xep.JingleIceUdp {
+
+private const string NS_URI = "urn:xmpp:jingle:transports:ice-udp:1";
+
+public abstract class Module : XmppStreamModule, Jingle.Transport {
+ public static Xmpp.ModuleIdentity<Module> IDENTITY = new Xmpp.ModuleIdentity<Module>(NS_URI, "0176_jingle_ice_udp");
+
+ 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 abstract Jingle.TransportParameters create_transport_parameters(XmppStream stream, uint8 components, Jid local_full_jid, Jid peer_full_jid);
+
+ public abstract Jingle.TransportParameters parse_transport_parameters(XmppStream stream, uint8 components, Jid local_full_jid, Jid peer_full_jid, StanzaNode transport) throws Jingle.IqError;
+}
+
+} \ No newline at end of file
diff --git a/xmpp-vala/src/module/xep/0176_jingle_ice_udp/transport_parameters.vala b/xmpp-vala/src/module/xep/0176_jingle_ice_udp/transport_parameters.vala
new file mode 100644
index 00000000..8b8aa07d
--- /dev/null
+++ b/xmpp-vala/src/module/xep/0176_jingle_ice_udp/transport_parameters.vala
@@ -0,0 +1,114 @@
+using Gee;
+using Xmpp.Xep;
+using Xmpp;
+
+public abstract class Xmpp.Xep.JingleIceUdp.IceUdpTransportParameters : Jingle.TransportParameters, Object {
+ public string ns_uri { get { return NS_URI; } }
+ public string remote_pwd { get; private set; }
+ public string remote_ufrag { get; private set; }
+ public string local_pwd { get; private set; }
+ public string local_ufrag { get; private set; }
+
+ public ConcurrentList<Candidate> local_candidates = new ConcurrentList<Candidate>(Candidate.equals_func);
+ public ConcurrentList<Candidate> unsent_local_candidates = new ConcurrentList<Candidate>(Candidate.equals_func);
+ public Gee.List<Candidate> remote_candidates = new ArrayList<Candidate>(Candidate.equals_func);
+
+ public Jid local_full_jid { get; private set; }
+ public Jid peer_full_jid { get; private set; }
+ private uint8 components_;
+ public uint8 components { get { return components_; } }
+
+ public bool incoming { get; private set; default = false; }
+ private bool connection_created = false;
+
+ private weak Jingle.Content? content = null;
+
+ protected IceUdpTransportParameters(uint8 components, Jid local_full_jid, Jid peer_full_jid, StanzaNode? node = null) {
+ this.components_ = components;
+ this.local_full_jid = local_full_jid;
+ this.peer_full_jid = peer_full_jid;
+ if (node != null) {
+ incoming = true;
+ remote_pwd = node.get_attribute("pwd");
+ remote_ufrag = node.get_attribute("ufrag");
+ foreach (StanzaNode candidateNode in node.get_subnodes("candidate")) {
+ remote_candidates.add(Candidate.parse(candidateNode));
+ }
+ }
+ }
+
+ public void init(string ufrag, string pwd) {
+ this.local_ufrag = ufrag;
+ this.local_pwd = pwd;
+ debug("Initialized for %s", pwd);
+ }
+
+ public void set_content(Jingle.Content content) {
+ this.content = content;
+ this.content.weak_ref(unset_content);
+ }
+
+ public void unset_content() {
+ this.content = null;
+ }
+
+ public StanzaNode to_transport_stanza_node() {
+ var node = new StanzaNode.build("transport", NS_URI)
+ .add_self_xmlns()
+ .put_attribute("ufrag", local_ufrag)
+ .put_attribute("pwd", local_pwd);
+ foreach (Candidate candidate in unsent_local_candidates) {
+ node.put_node(candidate.to_xml());
+ }
+ unsent_local_candidates.clear();
+ return node;
+ }
+
+ public virtual void handle_transport_accept(StanzaNode node) throws Jingle.IqError {
+ string? pwd = node.get_attribute("pwd");
+ string? ufrag = node.get_attribute("ufrag");
+ if (pwd != null) remote_pwd = pwd;
+ if (ufrag != null) remote_ufrag = ufrag;
+ foreach (StanzaNode candidateNode in node.get_subnodes("candidate")) {
+ remote_candidates.add(Candidate.parse(candidateNode));
+ }
+ }
+
+ public virtual void handle_transport_info(StanzaNode node) throws Jingle.IqError {
+ string? pwd = node.get_attribute("pwd");
+ string? ufrag = node.get_attribute("ufrag");
+ if (pwd != null) remote_pwd = pwd;
+ if (ufrag != null) remote_ufrag = ufrag;
+ uint8 components = 0;
+ foreach (StanzaNode candidateNode in node.get_subnodes("candidate")) {
+ remote_candidates.add(Candidate.parse(candidateNode));
+ }
+ }
+
+ public virtual void create_transport_connection(XmppStream stream, Jingle.Content content) {
+ connection_created = true;
+
+ check_send_transport_info();
+ }
+
+ public void add_local_candidate_threadsafe(Candidate candidate) {
+ if (local_candidates.contains(candidate)) return;
+
+ debug("New local candidate %u %s %s:%u", candidate.component, candidate.type_.to_string(), candidate.ip, candidate.port);
+ unsent_local_candidates.add(candidate);
+ local_candidates.add(candidate);
+
+ if (this.content != null && (this.connection_created || !this.incoming)) {
+ Timeout.add(50, () => {
+ check_send_transport_info();
+ return false;
+ });
+ }
+ }
+
+ private void check_send_transport_info() {
+ if (this.content != null && unsent_local_candidates.size > 0) {
+ content.send_transport_info(to_transport_stanza_node());
+ }
+ }
+} \ No newline at end of file