diff options
Diffstat (limited to 'xmpp-vala/src/module/xep')
| -rw-r--r-- | xmpp-vala/src/module/xep/0166_jingle.vala | 205 | ||||
| -rw-r--r-- | xmpp-vala/src/module/xep/0260_jingle_socks5_bytestreams.vala | 22 |
2 files changed, 188 insertions, 39 deletions
diff --git a/xmpp-vala/src/module/xep/0166_jingle.vala b/xmpp-vala/src/module/xep/0166_jingle.vala index 34816fcd..f5d112aa 100644 --- a/xmpp-vala/src/module/xep/0166_jingle.vala +++ b/xmpp-vala/src/module/xep/0166_jingle.vala @@ -139,12 +139,15 @@ public class Module : XmppStreamModule, Iq.Handler { } return transports[ns_uri]; } - public Transport? select_transport(XmppStream stream, TransportType type, Jid receiver_full_jid) { + public Transport? select_transport(XmppStream stream, TransportType type, Jid receiver_full_jid, Set<string> blacklist) { Transport? result = null; foreach (Transport transport in transports.values) { if (transport.transport_type() != type) { continue; } + if (transport.transport_ns_uri() in blacklist) { + continue; + } if (transport.is_transport_available(stream, receiver_full_jid)) { if (result != null) { if (result.transport_priority() >= transport.transport_priority()) { @@ -163,14 +166,14 @@ public class Module : XmppStreamModule, Iq.Handler { } public bool is_available(XmppStream stream, TransportType type, Jid full_jid) { - return is_jingle_available(stream, full_jid) && select_transport(stream, type, full_jid) != null; + return is_jingle_available(stream, full_jid) && select_transport(stream, type, full_jid, Set.empty()) != null; } public Session create_session(XmppStream stream, TransportType type, Jid receiver_full_jid, Senders senders, string content_name, StanzaNode description) throws Error { if (!is_jingle_available(stream, receiver_full_jid)) { throw new Error.NO_SHARED_PROTOCOLS("No Jingle support"); } - Transport? transport = select_transport(stream, type, receiver_full_jid); + Transport? transport = select_transport(stream, type, receiver_full_jid, Set.empty()); if (transport == null) { throw new Error.NO_SHARED_PROTOCOLS("No suitable transports"); } @@ -369,11 +372,13 @@ public interface ContentParameters : Object { public class Session { - // INITIATE_SENT -> CONNECTING -> ACTIVE -> ENDED - // INITIATE_RECEIVED -> CONNECTING -> ACTIVE -> ENDED + // INITIATE_SENT -> CONNECTING -> [REPLACING_TRANSPORT -> CONNECTING ->]... ACTIVE -> ENDED + // INITIATE_RECEIVED -> CONNECTING -> [WAITING_FOR_TRANSPORT_REPLACE -> CONNECTING ->].. ACTIVE -> ENDED public enum State { INITIATE_SENT, + REPLACING_TRANSPORT, INITIATE_RECEIVED, + WAITING_FOR_TRANSPORT_REPLACE, CONNECTING, ACTIVE, ENDED, @@ -381,8 +386,9 @@ public class Session { public State state { get; private set; } + public Role role { get; private set; } public string sid { get; private set; } - public Type type_ { get; private set; } + public TransportType type_ { get; private set; } public Jid local_full_jid { get; private set; } public Jid peer_full_jid { get; private set; } public Role content_creator { get; private set; } @@ -392,25 +398,30 @@ public class Session { public IOStream conn { get { return connection; } } // INITIATE_SENT | INITIATE_RECEIVED | CONNECTING + Set<string> tried_transport_methods = new HashSet<string>(); TransportParameters? transport = null; SessionTerminate session_terminate_handler; - public Session.initiate_sent(string sid, Type type, TransportParameters transport, Jid local_full_jid, Jid peer_full_jid, string content_name, owned SessionTerminate session_terminate_handler) { + public Session.initiate_sent(string sid, TransportType type, TransportParameters transport, Jid local_full_jid, Jid peer_full_jid, string content_name, owned SessionTerminate session_terminate_handler) { this.state = State.INITIATE_SENT; + this.role = Role.INITIATOR; this.sid = sid; this.type_ = type; this.local_full_jid = local_full_jid; this.peer_full_jid = peer_full_jid; this.content_creator = Role.INITIATOR; this.content_name = content_name; + this.tried_transport_methods = new HashSet<string>(); + this.tried_transport_methods.add(transport.transport_ns_uri()); this.transport = transport; this.connection = new Connection(this); this.session_terminate_handler = (owned)session_terminate_handler; } - public Session.initiate_received(string sid, Type type, TransportParameters? transport, Jid local_full_jid, Jid peer_full_jid, string content_name, owned SessionTerminate session_terminate_handler) { + public Session.initiate_received(string sid, TransportType type, TransportParameters? transport, Jid local_full_jid, Jid peer_full_jid, string content_name, owned SessionTerminate session_terminate_handler) { this.state = State.INITIATE_RECEIVED; + this.role = Role.RESPONDER; this.sid = sid; this.type_ = type; this.local_full_jid = local_full_jid; @@ -418,39 +429,87 @@ public class Session { this.content_creator = Role.INITIATOR; this.content_name = content_name; this.transport = transport; + this.tried_transport_methods = new HashSet<string>(); + if (transport != null) { + this.tried_transport_methods.add(transport.transport_ns_uri()); + } this.connection = new Connection(this); this.session_terminate_handler = (owned)session_terminate_handler; } public void handle_iq_set(XmppStream stream, string action, StanzaNode jingle, Iq.Stanza iq) throws IqError { + // Validate action. switch (action) { case "session-accept": - if (state != State.INITIATE_SENT) { - throw new IqError.OUT_OF_ORDER("got session-accept while not waiting for one"); - } - handle_session_accept(stream, jingle, iq); - break; case "session-terminate": - handle_session_terminate(stream, jingle, iq); - break; + case "transport-accept": + case "transport-reject": + case "transport-replace": case "transport-info": - handle_transport_info(stream, jingle, iq); - return; + break; case "content-accept": case "content-add": case "content-modify": case "content-reject": case "content-remove": case "security-info": + default: + throw new IqError.BAD_REQUEST("invalid action"); + } + ContentNode? content = null; + StanzaNode? transport = null; + // Do some pre-processing. + if (action != "session-terminate") { + content = get_single_content_node(jingle); + verify_content(content); + switch (action) { + case "transport-accept": + case "transport-reject": + case "transport-replace": + case "transport-info": + switch (state) { + case State.INITIATE_SENT: + case State.REPLACING_TRANSPORT: + case State.INITIATE_RECEIVED: + case State.WAITING_FOR_TRANSPORT_REPLACE: + case State.CONNECTING: + break; + default: + throw new IqError.OUT_OF_ORDER("transport-* unsupported after connection setup"); + } + // TODO(hrxi): What to do with description nodes? + if (content.transport == null) { + throw new IqError.BAD_REQUEST("missing transport node"); + } + transport = content.transport; + break; + } + } + switch (action) { + case "session-accept": + if (state != State.INITIATE_SENT) { + throw new IqError.OUT_OF_ORDER("got session-accept while not waiting for one"); + } + handle_session_accept(stream, content, jingle, iq); + break; + case "session-terminate": + handle_session_terminate(stream, jingle, iq); + break; case "transport-accept": + handle_transport_accept(stream, transport, jingle, iq); + break; case "transport-reject": + handle_transport_reject(stream, jingle, iq); + break; case "transport-replace": - throw new IqError.NOT_IMPLEMENTED(@"$(action) is not implemented"); - default: - throw new IqError.BAD_REQUEST("invalid action"); + handle_transport_replace(stream, transport, jingle, iq); + break; + case "transport-info": + handle_transport_info(stream, transport, jingle, iq); + break; } } - void handle_session_accept(XmppStream stream, StanzaNode jingle, Iq.Stanza iq) throws IqError { + void handle_session_accept(XmppStream stream, ContentNode content, StanzaNode jingle, Iq.Stanza iq) throws IqError { string? responder_str = jingle.get_attribute("responder"); Jid responder; if (responder_str != null) { @@ -462,8 +521,6 @@ public class Session { if (!responder.is_full()) { throw new IqError.BAD_REQUEST("invalid responder JID"); } - ContentNode content = get_single_content_node(jingle); - verify_content(content); if (content.description == null || content.transport == null) { throw new IqError.BAD_REQUEST("missing description or transport node"); } @@ -472,8 +529,9 @@ public class Session { } transport.on_transport_accept(content.transport); StanzaNode description = content.description; // TODO(hrxi): handle this :P - state = State.CONNECTING; stream.get_module(Iq.Module.IDENTITY).send_iq(stream, new Iq.Stanza.result(iq)); + + state = State.CONNECTING; transport.create_transport_connection(stream, this); } void connection_created(XmppStream stream, IOStream? conn) { @@ -483,12 +541,14 @@ public class Session { if (conn != null) { state = State.ACTIVE; transport = null; + tried_transport_methods.clear(); connection.set_inner(conn); } else { - // TODO(hrxi): try negotiating other transports… - StanzaNode reason = new StanzaNode.build("reason", NS_URI) - .put_node(new StanzaNode.build("failed-transport", NS_URI)); - terminate(reason, "failed transport"); + if (role == Role.INITIATOR) { + select_new_transport(stream); + } else { + state = State.WAITING_FOR_TRANSPORT_REPLACE; + } } } void handle_session_terminate(XmppStream stream, StanzaNode jingle, Iq.Stanza iq) throws IqError { @@ -499,17 +559,88 @@ public class Session { stream.get_module(Iq.Module.IDENTITY).send_iq(stream, new Iq.Stanza.result(iq)); // TODO(hrxi): also handle presence type=unavailable } - void handle_transport_info(XmppStream stream, StanzaNode jingle, Iq.Stanza iq) throws IqError { - if (state != State.INITIATE_RECEIVED && state != State.INITIATE_SENT && state != State.CONNECTING) { - stream.get_module(Iq.Module.IDENTITY).send_iq(stream, new Iq.Stanza.result(iq)); - throw new IqError.UNSUPPORTED_INFO("transport-info unsupported after connection setup"); + void select_new_transport(XmppStream stream) { + Transport? new_transport = stream.get_module(Module.IDENTITY).select_transport(stream, type_, peer_full_jid, tried_transport_methods); + if (new_transport == null) { + StanzaNode reason = new StanzaNode.build("reason", NS_URI) + .put_node(new StanzaNode.build("failed-transport", NS_URI)); + terminate(reason, "failed transport"); + return; } - ContentNode content = get_single_content_node(jingle); - verify_content(content); - if (content.description != null || content.transport == null) { - throw new IqError.BAD_REQUEST("unexpected description node or missing transport node"); + tried_transport_methods.add(new_transport.transport_ns_uri()); + transport = new_transport.create_transport_parameters(stream, local_full_jid, peer_full_jid); + StanzaNode jingle = new StanzaNode.build("jingle", NS_URI) + .add_self_xmlns() + .put_attribute("action", "transport-replace") + .put_attribute("sid", sid) + .put_node(new StanzaNode.build("content", NS_URI) + .put_attribute("creator", "initiator") + .put_attribute("name", content_name) + .put_node(transport.to_transport_stanza_node()) + ); + Iq.Stanza iq = new Iq.Stanza.set(jingle) { to=peer_full_jid }; + stream.get_module(Iq.Module.IDENTITY).send_iq(stream, iq); + state = State.REPLACING_TRANSPORT; + } + void handle_transport_accept(XmppStream stream, StanzaNode transport_node, StanzaNode jingle, Iq.Stanza iq) throws IqError { + if (state != State.REPLACING_TRANSPORT) { + throw new IqError.OUT_OF_ORDER("no outstanding transport-replace request"); + } + if (transport_node.ns_uri != transport.transport_ns_uri()) { + throw new IqError.BAD_REQUEST("transport-accept with unnegotiated transport method"); } - transport.on_transport_info(content.transport); + transport.on_transport_accept(transport_node); + state = State.CONNECTING; + stream.get_module(Iq.Module.IDENTITY).send_iq(stream, new Iq.Stanza.result(iq)); + transport.create_transport_connection(stream, this); + } + void handle_transport_reject(XmppStream stream, StanzaNode jingle, Iq.Stanza iq) throws IqError { + if (state != State.REPLACING_TRANSPORT) { + throw new IqError.OUT_OF_ORDER("no outstanding transport-replace request"); + } + stream.get_module(Iq.Module.IDENTITY).send_iq(stream, new Iq.Stanza.result(iq)); + select_new_transport(stream); + } + void handle_transport_replace(XmppStream stream, StanzaNode transport_node, StanzaNode jingle, Iq.Stanza iq) throws IqError { + Transport? transport = stream.get_module(Module.IDENTITY).get_transport(transport_node.ns_uri); + TransportParameters? parameters = null; + if (transport != null) { + // Just parse the transport info for the errors. + parameters = transport.parse_transport_parameters(stream, local_full_jid, peer_full_jid, transport_node); + } + stream.get_module(Iq.Module.IDENTITY).send_iq(stream, new Iq.Stanza.result(iq)); + if (state != State.WAITING_FOR_TRANSPORT_REPLACE || transport == null) { + StanzaNode jingle_response = new StanzaNode.build("jingle", NS_URI) + .add_self_xmlns() + .put_attribute("action", "transport-reject") + .put_attribute("sid", sid) + .put_node(new StanzaNode.build("content", NS_URI) + .put_attribute("creator", "initiator") + .put_attribute("name", content_name) + .put_node(transport_node) + ); + Iq.Stanza iq_response = new Iq.Stanza.set(jingle_response) { to=peer_full_jid }; + stream.get_module(Iq.Module.IDENTITY).send_iq(stream, iq_response); + return; + } + this.transport = parameters; + StanzaNode jingle_response = new StanzaNode.build("jingle", NS_URI) + .add_self_xmlns() + .put_attribute("action", "transport-accept") + .put_attribute("sid", sid) + .put_node(new StanzaNode.build("content", NS_URI) + .put_attribute("creator", "initiator") + .put_attribute("name", content_name) + .put_node(this.transport.to_transport_stanza_node()) + ); + Iq.Stanza iq_response = new Iq.Stanza.set(jingle_response) { to=peer_full_jid }; + stream.get_module(Iq.Module.IDENTITY).send_iq(stream, iq_response); + + state = State.CONNECTING; + this.transport.create_transport_connection(stream, this); + } + void handle_transport_info(XmppStream stream, StanzaNode transport, StanzaNode jingle, Iq.Stanza iq) throws IqError { + this.transport.on_transport_info(transport); stream.get_module(Iq.Module.IDENTITY).send_iq(stream, new Iq.Stanza.result(iq)); } void verify_content(ContentNode content) throws IqError { diff --git a/xmpp-vala/src/module/xep/0260_jingle_socks5_bytestreams.vala b/xmpp-vala/src/module/xep/0260_jingle_socks5_bytestreams.vala index 78f47cfb..79c62d68 100644 --- a/xmpp-vala/src/module/xep/0260_jingle_socks5_bytestreams.vala +++ b/xmpp-vala/src/module/xep/0260_jingle_socks5_bytestreams.vala @@ -172,6 +172,7 @@ class Parameters : Jingle.TransportParameters, Object { string? waiting_for_activation_cid = null; SourceFunc waiting_for_activation_callback; + bool waiting_for_activation_error = false; private static string calculate_dstaddr(string sid, Jid first_jid, Jid second_jid) { string hashed = sid + first_jid.to_string() + second_jid.to_string(); @@ -200,7 +201,6 @@ class Parameters : Jingle.TransportParameters, Object { throw new Jingle.IqError.BAD_REQUEST("too long dstaddr"); } Parameters result = new Parameters(Jingle.Role.RESPONDER, sid, local_full_jid, peer_full_jid, dstaddr); - //result.remote_candidates.add(new Candidate("b", "0.0.0.0", new Jid("a@b/c"), 1234, 2000000000, CandidateType.PROXY)); foreach (StanzaNode candidate in transport.get_subnodes("candidate", NS_URI)) { result.remote_candidates.add(Candidate.parse(candidate)); } @@ -237,10 +237,12 @@ class Parameters : Jingle.TransportParameters, Object { StanzaNode? candidate_error = transport.get_subnode("candidate-error", NS_URI); StanzaNode? candidate_used = transport.get_subnode("candidate-used", NS_URI); StanzaNode? activated = transport.get_subnode("activated", NS_URI); + StanzaNode? proxy_error = transport.get_subnode("proxy-error", NS_URI); int num_children = 0; if (candidate_error != null) { num_children += 1; } if (candidate_used != null) { num_children += 1; } if (activated != null) { num_children += 1; } + if (proxy_error != null) { num_children += 1; } if (num_children == 0) { throw new Jingle.IqError.UNSUPPORTED_INFO("unknown transport-info"); } else if (num_children > 1) { @@ -263,6 +265,9 @@ class Parameters : Jingle.TransportParameters, Object { } handle_activated(cid); } + if (proxy_error != null) { + handle_proxy_error(); + } } private void handle_remote_candidate(string? cid) throws Jingle.IqError { if (remote_sent_selected_candidate) { @@ -291,6 +296,15 @@ class Parameters : Jingle.TransportParameters, Object { Idle.add((owned)waiting_for_activation_callback); waiting_for_activation_cid = null; } + private void handle_proxy_error() throws Jingle.IqError { + if (waiting_for_activation_cid == null) { + throw new Jingle.IqError.BAD_REQUEST("unexpected proxy error message"); + } + Idle.add((owned)waiting_for_activation_callback); + waiting_for_activation_cid = null; + waiting_for_activation_error = true; + + } private void try_completing_negotiation() { if (!remote_sent_selected_candidate || !local_determined_selected_candidate) { return; @@ -346,7 +360,11 @@ class Parameters : Jingle.TransportParameters, Object { if (strong == null) { return; } - strong.set_transport_connection(hack, conn); + if (!waiting_for_activation_error) { + strong.set_transport_connection(hack, conn); + } else { + strong.set_transport_connection(hack, null); + } } public async void connect_to_local_candidate(Candidate candidate) { try { |