public class Xmpp.StartTlsXmppStream : TlsXmppStream { private const string TLS_NS_URI = "urn:ietf:params:xml:ns:xmpp-tls"; string host; uint16 port; TlsXmppStream.OnInvalidCertWrapper on_invalid_cert; public StartTlsXmppStream(Jid remote, string host, uint16 port, TlsXmppStream.OnInvalidCertWrapper on_invalid_cert) { base(remote); this.host = host; this.port = port; this.on_invalid_cert = on_invalid_cert; } public override async void connect() throws IOStreamError { try { SocketClient client = new SocketClient(); debug("Connecting to %s %i (starttls)", host, port); IOStream stream = yield client.connect_to_host_async(host, port); reset_stream(stream); yield setup(); StanzaNode node = yield read(); var starttls_node = node.get_subnode("starttls", TLS_NS_URI); if (starttls_node == null) { warning("%s does not offer starttls", remote_name.to_string()); } write(new StanzaNode.build("starttls", TLS_NS_URI).add_self_xmlns()); node = yield read(); if (node.ns_uri != TLS_NS_URI || node.name != "proceed") { warning("Server did not 'proceed' starttls request"); } try { var identity = new NetworkService("xmpp-client", "tcp", remote_name.to_string()); var conn = TlsClientConnection.new(get_stream(), identity); reset_stream(conn); conn.accept_certificate.connect(on_invalid_certificate); conn.accept_certificate.connect((cert, flags) => on_invalid_cert.func(cert, flags)); } catch (Error e) { stderr.printf("Failed to start TLS: %s\n", e.message); } yield setup(); attach_negotation_modules(); } catch (Error e) { throw new IOStreamError.CONNECT("Failed connecting to %s:%i (starttls): %s", host, port, e.message); } } }