134 lines
4.0 KiB
JavaScript
134 lines
4.0 KiB
JavaScript
"use strict";
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const UI = require("@syndicate-lang/driver-browser-ui");
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// @jsx UI.html
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// @jsxFrag UI.htmlFragment
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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 {
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Set, Bytes,
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Encoder, 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 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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const {
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Assert, Clear, Message,
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Add, Del, Msg,
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makeDecoder,
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} = activate require("./protocol");
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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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}
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on asserted Http.WebSocket(_, server, $path, $query) {
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console.log(path.toJS(), query.toJS());
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}
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}
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spawn named 'rootServer' {
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during Http.Request($reqId, server, 'get', [], _, _) {
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assert :snapshot Http.Response(
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reqId, 200, "OK", {"Content-type": "text/html"},
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'<!DOCTYPE html>' + UI.htmlToString(
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<div>
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<p>Hello</p>
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</div>
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));
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}
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}
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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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assert Connection(reqId);
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on message Http.DataIn(reqId, $data) {
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if (data instanceof Bytes) {
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send Request(reqId, makeDecoder(data).next());
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}
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}
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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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assert Connection(id);
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const decoder = makeDecoder(null);
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on message Tcp.DataIn(id, $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(id, v);
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}
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}
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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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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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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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