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@ -0,0 +1,2 @@
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- TLS for both WS and TCP
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- authn, authz
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@ -6,10 +6,35 @@ const UI = require("@syndicate-lang/driver-browser-ui");
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const Http = activate require("@syndicate-lang/driver-http-node");
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const Tcp = activate require("@syndicate-lang/driver-tcp-node");
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import { Decoder, Bytes } from "@syndicate-lang/core";
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import {
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Set, Bytes,
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Decoder, Encoder,
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Discard, Capture, Observe,
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Dataspace, Skeleton, currentFacet,
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} from "@syndicate-lang/core";
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const server = Http.HttpServer(null, 8000);
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assertion type Connection(connId);
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message type Fragment(connId, data);
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message type Request(connId, body);
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message type Response(connId, body);
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// Internal isolation
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assertion type Envelope(body);
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// Client ---> Broker
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message type Assert(endpointName, assertion);
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message type Clear(endpointName);
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message type Message(body);
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// Client <--- Broker
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message type Add(endpointName, captures);
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message type Del(endpointName, captures);
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message type Msg(endpointName, captures);
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assertion type Endpoint(connId, endpointName, assertion);
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spawn named 'serverLogger' {
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on asserted Http.Request(_, server, $method, $path, $query, $req) {
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console.log(method, path.toJS(), query.toJS());
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@ -33,21 +58,89 @@ spawn named 'rootServer' {
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spawn named 'websocketListener' {
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during Http.WebSocket($reqId, server, ['broker'], _) spawn named ['wsConnection', reqId] {
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on message Http.DataIn(reqId, $message) {
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console.log('got', reqId, new Decoder(message).next());
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send Http.DataOut(reqId, message);
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}
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stop on message Http.DataIn(reqId, Bytes.from("quit"));
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assert Connection(reqId);
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on message Http.DataIn(reqId, $data) send Fragment(reqId, data);
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on message Response(reqId, $resp) send Http.DataOut(reqId, new Encoder().push(resp).contents());
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}
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}
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spawn named 'tcpListener' {
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during Tcp.TcpConnection($id, Tcp.TcpListener(8001)) spawn named ['tcpConnection', id] {
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assert Tcp.TcpAccepted(id);
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on message Tcp.DataIn(id, $data) {
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console.log('got', id, new Decoder(data).next());
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send Tcp.DataOut(id, data);
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assert Connection(id);
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on message Tcp.DataIn(id, $data) send Fragment(id, data);
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on message Response(id, $resp) send Tcp.DataOut(id, new Encoder().push(resp).contents());
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}
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}
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spawn named 'connectionHandler' {
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during Connection($connId) spawn named Connection(connId) {
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on start console.log(connId, 'connected');
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on stop console.log(connId, 'disconnected');
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let endpoints = Set();
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const decoder = new Decoder(null, {
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shortForms: {
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0: Discard.constructorInfo.label,
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1: Capture.constructorInfo.label,
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2: Observe.constructorInfo.label,
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}
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});
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on message Fragment(connId, $data) {
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decoder.write(data);
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let v;
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while ((v = decoder.try_next())) {
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send Request(connId, v);
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}
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}
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on message Request(connId, Assert($ep, $a)) {
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if (!endpoints.includes(ep)) {
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endpoints = endpoints.add(ep);
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react {
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on stop { endpoints = endpoints.remove(ep); }
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field this.assertion = a;
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currentFacet().addEndpoint(() => {
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if (Observe.isClassOf(this.assertion)) {
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console.log("Subscription", connId, ep, this.assertion.toString());
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const spec = Envelope(this.assertion.get(0));
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const analysis = Skeleton.analyzeAssertion(spec);
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analysis.callback = Dataspace.wrap((evt, vs) => {
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currentFacet().actor.scheduleScript(() => {
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console.log('EVENT', currentFacet().toString(), connId, ep, evt, vs);
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switch (evt) {
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case Skeleton.EVENT_ADDED:
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send Response(connId, Add(ep, vs));
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break;
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case Skeleton.EVENT_REMOVED:
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send Response(connId, Del(ep, vs));
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break;
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case Skeleton.EVENT_MESSAGE:
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send Response(connId, Msg(ep, vs));
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break;
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}
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});
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});
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return [Observe(spec), analysis];
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} else {
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return [Envelope(this.assertion), null];
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}
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}, true);
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on message Request(connId, Assert(ep, $newAssertion)) this.assertion = newAssertion;
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stop on message Request(connId, Clear(ep));
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}
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}
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}
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on message Request(connId, Message($body)) {
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send Envelope(body);
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}
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on message Request(connId, $req) console.log('IN: ', connId, req.toString());
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on message Response(connId, $resp) console.log('OUT:', connId, resp.toString());
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}
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}
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