71 lines
2.9 KiB
Vala
71 lines
2.9 KiB
Vala
using Gee;
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using Dino.Entities;
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using Xmpp;
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using Xmpp.Xep;
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private extern const size_t NICE_ADDRESS_STRING_LEN;
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public class Dino.Plugins.Ice.Plugin : RootInterface, Object {
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public Dino.Application app;
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public void registered(Dino.Application app) {
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Nice.debug_enable(true);
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this.app = app;
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app.stream_interactor.module_manager.initialize_account_modules.connect((account, list) => {
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list.add(new Module());
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});
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app.stream_interactor.stream_attached_modules.connect((account, stream) => {
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stream.get_module(Socks5Bytestreams.Module.IDENTITY).set_local_ip_address_handler(get_local_ip_addresses);
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});
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app.stream_interactor.stream_negotiated.connect(on_stream_negotiated);
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}
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private async void on_stream_negotiated(Account account, XmppStream stream) {
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Module? ice_udp_module = stream.get_module(JingleIceUdp.Module.IDENTITY) as Module;
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if (ice_udp_module == null) return;
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Gee.List<Xep.ExternalServiceDiscovery.Service> services = yield ExternalServiceDiscovery.request_services(stream);
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foreach (Xep.ExternalServiceDiscovery.Service service in services) {
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if (service.transport == "udp" && (service.ty == "stun" || service.ty == "turn")) {
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InetAddress ip = yield lookup_ipv4_addess(service.host);
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if (ip == null) continue;
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if (service.ty == "stun") {
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debug("Server offers STUN server: %s:%u, resolved to %s", service.host, service.port, ip.to_string());
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ice_udp_module.stun_ip = ip.to_string();
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ice_udp_module.stun_port = service.port;
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} else if (service.ty == "turn") {
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debug("Server offers TURN server: %s:%u, resolved to %s", service.host, service.port, ip.to_string());
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ice_udp_module.turn_ip = ip.to_string();
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ice_udp_module.turn_service = service;
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}
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}
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}
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if (ice_udp_module.stun_ip == null) {
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InetAddress ip = yield lookup_ipv4_addess("stun.l.google.com");
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if (ip == null) return;
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debug("Using fallback STUN server: stun.l.google.com:19302, resolved to %s", ip.to_string());
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ice_udp_module.stun_ip = ip.to_string();
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ice_udp_module.stun_port = 19302;
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}
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}
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public void shutdown() {
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// Nothing to do
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}
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private async InetAddress? lookup_ipv4_addess(string host) {
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try {
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Resolver resolver = Resolver.get_default();
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GLib.List<GLib.InetAddress>? ips = yield resolver.lookup_by_name_async(host);
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foreach (GLib.InetAddress ina in ips) {
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if (ina.get_family() != SocketFamily.IPV4) continue;
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return ina;
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}
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} catch (Error e) {
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warning("Failed looking up IP address of %s", host);
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}
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return null;
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}
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} |