Move ICE into libdino

1 files changed, 0 insertions, 391 deletions

diff --git a/plugins/ice/src/transport_parameters.vala b/plugins/ice/src/transport_parameters.vala
deleted file mode 100644
index 122207c5..00000000
--- a/plugins/ice/src/transport_parameters.vala
+++ /dev/null
@@ -1,391 +0,0 @@
-using Gee;
-
-using Dino.Crypto;
-using Xmpp;
-using Xmpp.Xep;
-
-
-public class Dino.Plugins.Ice.TransportParameters : JingleIceUdp.IceUdpTransportParameters {
-    private Nice.Agent agent;
-    private uint stream_id;
-    private bool we_want_connection;
-    private bool remote_credentials_set;
-    private Map<uint8, DatagramConnection> connections = new HashMap<uint8, DatagramConnection>();
-    private DtlsSrtp.Handler? dtls_srtp_handler;
-    private MainContext thread_context;
-    private MainLoop thread_loop;
-
-    private class DatagramConnection : Jingle.DatagramConnection {
-        private Nice.Agent agent;
-        private DtlsSrtp.Handler? dtls_srtp_handler;
-        private uint stream_id;
-        private string? error;
-        private ulong datagram_received_id;
-
-        public DatagramConnection(Nice.Agent agent, DtlsSrtp.Handler? dtls_srtp_handler, uint stream_id, uint8 component_id) {
-            this.agent = agent;
-            this.dtls_srtp_handler = dtls_srtp_handler;
-            this.stream_id = stream_id;
-            this.component_id = component_id;
-            this.datagram_received_id = this.datagram_received.connect((datagram) => {
-                bytes_received += datagram.length;
-            });
-        }
-
-        public override async void terminate(bool we_terminated, string? reason_string = null, string? reason_text = null) {
-            yield base.terminate(we_terminated, reason_string, reason_text);
-            this.disconnect(datagram_received_id);
-            agent = null;
-            dtls_srtp_handler = null;
-        }
-
-        public override void send_datagram(Bytes datagram) {
-            if (this.agent != null && is_component_ready(agent, stream_id, component_id)) {
-                try {
-                    if (dtls_srtp_handler != null) {
-                        uint8[] encrypted_data = dtls_srtp_handler.process_outgoing_data(component_id, datagram.get_data());
-                        if (encrypted_data == null) return;
-                        GLib.OutputVector vector = { encrypted_data, encrypted_data.length };
-                        GLib.OutputVector[] vectors = { vector };
-                        Nice.OutputMessage message = { vectors };
-                        Nice.OutputMessage[] messages = { message };
-                        agent.send_messages_nonblocking(stream_id, component_id, messages);
-                    } else {
-                        GLib.OutputVector vector = { datagram.get_data(), datagram.get_size() };
-                        GLib.OutputVector[] vectors = { vector };
-                        Nice.OutputMessage message = { vectors };
-                        Nice.OutputMessage[] messages = { message };
-                        agent.send_messages_nonblocking(stream_id, component_id, messages);
-                    }
-                    bytes_sent += datagram.length;
-                } catch (GLib.Error e) {
-                    warning("%s while send_datagram stream %u component %u", e.message, stream_id, component_id);
-                }
-            }
-        }
-    }
-
-    public TransportParameters(Nice.Agent agent, DtlsSrtp.CredentialsCapsule? credentials, Xep.ExternalServiceDiscovery.Service? turn_service, string? turn_ip, uint8 components, Jid local_full_jid, Jid peer_full_jid, StanzaNode? node = null) {
-        base(components, local_full_jid, peer_full_jid, node);
-        this.we_want_connection = (node == null);
-        this.agent = agent;
-
-        if (this.peer_fingerprint != null || !incoming) {
-            dtls_srtp_handler = setup_dtls(this, credentials);
-            own_fingerprint = dtls_srtp_handler.own_fingerprint;
-            if (incoming) {
-                own_setup = "active";
-                dtls_srtp_handler.mode = DtlsSrtp.Mode.CLIENT;
-                dtls_srtp_handler.peer_fingerprint = peer_fingerprint;
-                dtls_srtp_handler.peer_fp_algo = peer_fp_algo;
-            } else {
-                own_setup = "actpass";
-                dtls_srtp_handler.mode = DtlsSrtp.Mode.SERVER;
-                dtls_srtp_handler.setup_dtls_connection.begin((_, res) => {
-                    var content_encryption = dtls_srtp_handler.setup_dtls_connection.end(res);
-                    if (content_encryption != null) {
-                        this.content.encryptions[content_encryption.encryption_ns] = content_encryption;
-                    }
-                });
-            }
-        }
-
-        agent.candidate_gathering_done.connect(on_candidate_gathering_done);
-        agent.initial_binding_request_received.connect(on_initial_binding_request_received);
-        agent.component_state_changed.connect(on_component_state_changed);
-        agent.new_selected_pair_full.connect(on_new_selected_pair_full);
-        agent.new_candidate_full.connect(on_new_candidate);
-
-        agent.controlling_mode = !incoming;
-        stream_id = agent.add_stream(components);
-        thread_context = new MainContext();
-        new Thread<void*>(@"ice-thread-$stream_id", () => {
-            thread_context.push_thread_default();
-            thread_loop = new MainLoop(thread_context, false);
-            thread_loop.run();
-            thread_context.pop_thread_default();
-            return null;
-        });
-
-        if (turn_ip != null) {
-            for (uint8 component_id = 1; component_id <= components; component_id++) {
-                agent.set_relay_info(stream_id, component_id, turn_ip, turn_service.port, turn_service.username, turn_service.password, Nice.RelayType.UDP);
-                debug("TURN info (component %i) %s:%u", component_id, turn_ip, turn_service.port);
-            }
-        }
-        string ufrag;
-        string pwd;
-        agent.get_local_credentials(stream_id, out ufrag, out pwd);
-        init(ufrag, pwd);
-
-        for (uint8 component_id = 1; component_id <= components; component_id++) {
-            // We don't properly get local candidates before this call
-            agent.attach_recv(stream_id, component_id, thread_context, on_recv);
-        }
-
-        agent.gather_candidates(stream_id);
-    }
-
-    private static DtlsSrtp.Handler setup_dtls(TransportParameters tp, DtlsSrtp.CredentialsCapsule credentials) {
-        var weak_self = WeakRef(tp);
-        DtlsSrtp.Handler dtls_srtp = new DtlsSrtp.Handler.with_cert(credentials);
-        dtls_srtp.send_data.connect((data) => {
-            TransportParameters self = (TransportParameters) weak_self.get();
-            if (self != null) self.agent.send(self.stream_id, 1, data);
-        });
-        return dtls_srtp;
-    }
-
-    private void on_candidate_gathering_done(uint stream_id) {
-        if (stream_id != this.stream_id) return;
-        debug("on_candidate_gathering_done in %u", stream_id);
-
-        for (uint8 i = 1; i <= components; i++) {
-            foreach (unowned Nice.Candidate nc in agent.get_local_candidates(stream_id, i)) {
-                if (nc.transport == Nice.CandidateTransport.UDP) {
-                    JingleIceUdp.Candidate? candidate = candidate_to_jingle(nc);
-                    if (candidate == null) continue;
-                    debug("Local candidate summary: %s", agent.generate_local_candidate_sdp(nc));
-                }
-            }
-        }
-    }
-
-    private void on_new_candidate(Nice.Candidate nc) {
-        if (nc.stream_id != stream_id) return;
-        JingleIceUdp.Candidate? candidate = candidate_to_jingle(nc);
-        if (candidate == null) return;
-
-        if (nc.transport == Nice.CandidateTransport.UDP) {
-            // Execution was in the agent thread before
-            add_local_candidate_threadsafe(candidate);
-        }
-    }
-
-    private bool bytes_equal(uint8[] a1, uint8[] a2) {
-        return a1.length == a2.length && Memory.cmp(a1, a2, a1.length) == 0;
-    }
-
-    public override void handle_transport_accept(StanzaNode transport) throws Jingle.IqError {
-        debug("on_transport_accept from %s", peer_full_jid.to_string());
-        base.handle_transport_accept(transport);
-
-        if (dtls_srtp_handler != null && peer_fingerprint != null) {
-            if (dtls_srtp_handler.peer_fingerprint != null) {
-                if (!bytes_equal(dtls_srtp_handler.peer_fingerprint, peer_fingerprint)) {
-                    warning("Tried to replace certificate fingerprint mid use. We don't allow that.");
-                    peer_fingerprint = dtls_srtp_handler.peer_fingerprint;
-                    peer_fp_algo = dtls_srtp_handler.peer_fp_algo;
-                }
-            } else {
-                dtls_srtp_handler.peer_fingerprint = peer_fingerprint;
-                dtls_srtp_handler.peer_fp_algo = peer_fp_algo;
-            }
-            if (peer_setup == "passive") {
-                dtls_srtp_handler.mode = DtlsSrtp.Mode.CLIENT;
-                dtls_srtp_handler.stop_dtls_connection();
-                dtls_srtp_handler.setup_dtls_connection.begin((_, res) => {
-                    var content_encryption = dtls_srtp_handler.setup_dtls_connection.end(res);
-                    if (content_encryption != null) {
-                        this.content.encryptions[content_encryption.encryption_ns] = content_encryption;
-                    }
-                });
-            }
-        } else {
-            dtls_srtp_handler = null;
-        }
-    }
-
-    public override void handle_transport_info(StanzaNode transport) throws Jingle.IqError {
-        debug("on_transport_info from %s", peer_full_jid.to_string());
-        base.handle_transport_info(transport);
-
-        if (dtls_srtp_handler != null && peer_fingerprint != null) {
-            if (dtls_srtp_handler.peer_fingerprint != null) {
-                if (!bytes_equal(dtls_srtp_handler.peer_fingerprint, peer_fingerprint)) {
-                    warning("Tried to replace certificate fingerprint mid use. We don't allow that.");
-                    peer_fingerprint = dtls_srtp_handler.peer_fingerprint;
-                    peer_fp_algo = dtls_srtp_handler.peer_fp_algo;
-                }
-            } else {
-                dtls_srtp_handler.peer_fingerprint = peer_fingerprint;
-                dtls_srtp_handler.peer_fp_algo = peer_fp_algo;
-            }
-        }
-
-        if (!we_want_connection) return;
-
-        if (remote_ufrag != null && remote_pwd != null && !remote_credentials_set) {
-            agent.set_remote_credentials(stream_id, remote_ufrag, remote_pwd);
-            remote_credentials_set = true;
-        }
-        for (uint8 i = 1; i <= components; i++) {
-            SList<Nice.Candidate> candidates = new SList<Nice.Candidate>();
-            foreach (JingleIceUdp.Candidate candidate in remote_candidates) {
-                if (candidate.component == i) {
-                    candidates.append(candidate_to_nice(candidate));
-                }
-            }
-            int new_candidates = agent.set_remote_candidates(stream_id, i, candidates);
-            debug("Updated to %i remote candidates for candidate %u via transport info", new_candidates, i);
-        }
-    }
-
-    public override void create_transport_connection(XmppStream stream, Jingle.Content content) {
-        debug("create_transport_connection: %s", content.session.sid);
-        debug("local_credentials: %s %s", local_ufrag, local_pwd);
-        debug("remote_credentials: %s %s", remote_ufrag, remote_pwd);
-        debug("expected incoming credentials: %s %s", local_ufrag + ":" + remote_ufrag, local_pwd);
-        debug("expected outgoing credentials: %s %s", remote_ufrag + ":" + local_ufrag, remote_pwd);
-
-        we_want_connection = true;
-
-        if (remote_ufrag != null && remote_pwd != null && !remote_credentials_set) {
-            agent.set_remote_credentials(stream_id, remote_ufrag, remote_pwd);
-            remote_credentials_set = true;
-        }
-        for (uint8 i = 1; i <= components; i++) {
-            SList<Nice.Candidate> candidates = new SList<Nice.Candidate>();
-            foreach (JingleIceUdp.Candidate candidate in remote_candidates) {
-                if (candidate.ip.has_prefix("fe80::")) continue;
-                if (candidate.component == i) {
-                    candidates.append(candidate_to_nice(candidate));
-                    debug("remote candidate: %s", agent.generate_local_candidate_sdp(candidate_to_nice(candidate)));
-                }
-            }
-            int new_candidates = agent.set_remote_candidates(stream_id, i, candidates);
-            debug("Initiated component %u with %i remote candidates", i, new_candidates);
-
-            connections[i] = new DatagramConnection(agent, dtls_srtp_handler, stream_id, i);
-            content.set_transport_connection(connections[i], i);
-        }
-
-        base.create_transport_connection(stream, content);
-    }
-
-    private void on_component_state_changed(uint stream_id, uint component_id, uint state) {
-        if (stream_id != this.stream_id) return;
-        debug("stream %u component %u state changed to %s", stream_id, component_id, agent.get_component_state(stream_id, component_id).to_string());
-        may_consider_ready(stream_id, component_id);
-        if (incoming && dtls_srtp_handler != null && !dtls_srtp_handler.ready && is_component_ready(agent, stream_id, component_id) && dtls_srtp_handler.mode == DtlsSrtp.Mode.CLIENT) {
-            dtls_srtp_handler.setup_dtls_connection.begin((_, res) => {
-                Jingle.ContentEncryption? encryption = dtls_srtp_handler.setup_dtls_connection.end(res);
-                if (encryption != null) {
-                    this.content.encryptions[encryption.encryption_ns] = encryption;
-                }
-            });
-        }
-    }
-
-    private void may_consider_ready(uint stream_id, uint component_id) {
-        if (stream_id != this.stream_id) return;
-        if (connections.has_key((uint8) component_id) && !connections[(uint8)component_id].ready && is_component_ready(agent, stream_id, component_id) && (dtls_srtp_handler == null || dtls_srtp_handler.ready)) {
-            connections[(uint8)component_id].ready = true;
-        }
-    }
-
-    private void on_initial_binding_request_received(uint stream_id) {
-        if (stream_id != this.stream_id) return;
-        debug("initial_binding_request_received");
-    }
-
-    private void on_new_selected_pair_full(uint stream_id, uint component_id, Nice.Candidate p1, Nice.Candidate p2) {
-        if (stream_id != this.stream_id) return;
-        debug("new_selected_pair_full %u [%s, %s]", component_id, agent.generate_local_candidate_sdp(p1), agent.generate_local_candidate_sdp(p2));
-    }
-
-    private void on_recv(Nice.Agent agent, uint stream_id, uint component_id, uint8[] data) {
-        if (stream_id != this.stream_id) return;
-        uint8[] decrypt_data = null;
-        if (dtls_srtp_handler != null) {
-            try {
-                decrypt_data = dtls_srtp_handler.process_incoming_data(component_id, data);
-                if (decrypt_data == null) return;
-            } catch (Crypto.Error e) {
-                warning("%s while on_recv stream %u component %u", e.message, stream_id, component_id);
-                return;
-            }
-        }
-        may_consider_ready(stream_id, component_id);
-        if (connections.has_key((uint8) component_id)) {
-            if (!connections[(uint8) component_id].ready) {
-                debug("on_recv stream %u component %u when state %s", stream_id, component_id, agent.get_component_state(stream_id, component_id).to_string());
-            }
-            connections[(uint8) component_id].datagram_received(new Bytes(decrypt_data ?? data));
-        } else {
-            debug("on_recv stream %u component %u length %u", stream_id, component_id, data.length);
-        }
-    }
-
-    private static Nice.Candidate candidate_to_nice(JingleIceUdp.Candidate c) {
-        Nice.CandidateType type;
-        switch (c.type_) {
-            case JingleIceUdp.Candidate.Type.HOST: type = Nice.CandidateType.HOST; break;
-            case JingleIceUdp.Candidate.Type.PRFLX: type = Nice.CandidateType.PEER_REFLEXIVE; break;
-            case JingleIceUdp.Candidate.Type.RELAY: type = Nice.CandidateType.RELAYED; break;
-            case JingleIceUdp.Candidate.Type.SRFLX: type = Nice.CandidateType.SERVER_REFLEXIVE; break;
-            default: assert_not_reached();
-        }
-
-        Nice.Candidate candidate = new Nice.Candidate(type);
-        candidate.component_id = c.component;
-        char[] foundation = new char[Nice.CANDIDATE_MAX_FOUNDATION];
-        Memory.copy(foundation, c.foundation.data, size_t.min(c.foundation.length, Nice.CANDIDATE_MAX_FOUNDATION - 1));
-        candidate.foundation = foundation;
-        candidate.addr = Nice.Address();
-        candidate.addr.init();
-        candidate.addr.set_from_string(c.ip);
-        candidate.addr.set_port(c.port);
-        candidate.priority = c.priority;
-        if (c.rel_addr != null) {
-            candidate.base_addr = Nice.Address();
-            candidate.base_addr.init();
-            candidate.base_addr.set_from_string(c.rel_addr);
-            candidate.base_addr.set_port(c.rel_port);
-        }
-        candidate.transport = Nice.CandidateTransport.UDP;
-        return candidate;
-    }
-
-    private static JingleIceUdp.Candidate? candidate_to_jingle(Nice.Candidate nc) {
-        JingleIceUdp.Candidate candidate = new JingleIceUdp.Candidate();
-        switch (nc.type) {
-            case Nice.CandidateType.HOST: candidate.type_ = JingleIceUdp.Candidate.Type.HOST; break;
-            case Nice.CandidateType.PEER_REFLEXIVE: candidate.type_ = JingleIceUdp.Candidate.Type.PRFLX; break;
-            case Nice.CandidateType.RELAYED: candidate.type_ = JingleIceUdp.Candidate.Type.RELAY; break;
-            case Nice.CandidateType.SERVER_REFLEXIVE: candidate.type_ = JingleIceUdp.Candidate.Type.SRFLX; break;
-            default: assert_not_reached();
-        }
-        candidate.component = (uint8) nc.component_id;
-        candidate.foundation = ((string)nc.foundation).dup();
-        candidate.generation = 0;
-        candidate.id = Random.next_int().to_string("%08x"); // TODO
-
-        char[] res = new char[NICE_ADDRESS_STRING_LEN];
-        nc.addr.to_string(res);
-        candidate.ip = (string) res;
-        candidate.network = 0; // TODO
-        candidate.port = (uint16) nc.addr.get_port();
-        candidate.priority = nc.priority;
-        candidate.protocol = "udp";
-        if (nc.base_addr.is_valid() && !nc.base_addr.equal(nc.addr)) {
-            res = new char[NICE_ADDRESS_STRING_LEN];
-            nc.base_addr.to_string(res);
-            candidate.rel_addr = (string) res;
-            candidate.rel_port = (uint16) nc.base_addr.get_port();
-        }
-        if (candidate.ip.has_prefix("fe80::")) return null;
-
-        return candidate;
-    }
-
-    public override void dispose() {
-        base.dispose();
-        agent = null;
-        dtls_srtp_handler = null;
-        connections.clear();
-        if (thread_loop != null) {
-            thread_loop.quit();
-        }
-    }
-}