243 lines
7.6 KiB
JavaScript
243 lines
7.6 KiB
JavaScript
"use strict";
|
|
|
|
const UI = require("@syndicate-lang/driver-browser-ui");
|
|
// @jsx UI.html
|
|
// @jsxFrag UI.htmlFragment
|
|
|
|
const Http = activate require("@syndicate-lang/driver-http-node");
|
|
const S = activate require("@syndicate-lang/driver-streams-node");
|
|
const M = activate require("@syndicate-lang/driver-mdns");
|
|
|
|
import {
|
|
Set, Bytes,
|
|
Encoder, Observe,
|
|
Dataspace, Skeleton, currentFacet, genUuid, RandomID
|
|
} from "@syndicate-lang/core";
|
|
|
|
const HTTP_PORT = 8000;
|
|
const TCP_PORT = 8001;
|
|
|
|
const server = Http.HttpServer(null, HTTP_PORT);
|
|
|
|
const dataspaceId = 'EToUNUJI0ykSfudmN9Z99wu62qGQB1nd8SHvjNtL5tM'; // public key of root server
|
|
const localId = RandomID.randomId(8, false);
|
|
const gatewayId = dataspaceId + ':' + localId;
|
|
|
|
const fs = require('fs');
|
|
|
|
assertion type Connection(connId);
|
|
message type Request(connId, body);
|
|
message type Response(connId, body);
|
|
|
|
message type Disconnect(connId);
|
|
|
|
// Internal isolation
|
|
assertion type Proposal(scope, body);
|
|
assertion type Envelope(scope, body);
|
|
|
|
// Monitoring
|
|
assertion type ConnectionScope(connId, scope);
|
|
|
|
const {
|
|
Connect, Peer,
|
|
Assert, Clear, Message,
|
|
Add, Del, Msg, Err,
|
|
makeDecoder,
|
|
} = activate require("./protocol");
|
|
|
|
spawn named 'serverLogger' {
|
|
on asserted Http.Request(_, server, $method, $path, $query, $req) {
|
|
console.log(method, path.toJS(), query.toJS());
|
|
}
|
|
on asserted Http.WebSocket(_, server, $path, $query) {
|
|
console.log(path.toJS(), query.toJS());
|
|
}
|
|
}
|
|
|
|
spawn named 'rootServer' {
|
|
during Http.Request($reqId, server, 'get', [], _, _) {
|
|
assert :snapshot Http.Response(
|
|
reqId, 200, "OK", {"Content-type": "text/html"},
|
|
'<!DOCTYPE html>' + UI.htmlToString(
|
|
<html>
|
|
<head>
|
|
<meta charset="utf-8"></meta>
|
|
</head>
|
|
<body>
|
|
<script src="dist/monitor.js"></script>
|
|
</body>
|
|
</html>
|
|
));
|
|
}
|
|
|
|
during Http.Request($reqId, server, 'get', ['chat.html'], _, _) {
|
|
const contents = fs.readFileSync(__dirname + '/../chat.html');
|
|
assert :snapshot Http.Response(reqId, 200, "OK", {}, contents);
|
|
}
|
|
|
|
during Http.Request($reqId, server, 'get', ['style.css'], _, _) {
|
|
const contents = fs.readFileSync(__dirname + '/../style.css');
|
|
assert :snapshot Http.Response(reqId, 200, "OK", {}, contents);
|
|
}
|
|
|
|
during Http.Request($reqId, server, 'get', ['dist', $file], _, _) {
|
|
const contents = fs.readFileSync(__dirname + '/../dist/' + file);
|
|
assert :snapshot Http.Response(reqId, 200, "OK", {}, contents);
|
|
}
|
|
|
|
during ConnectionScope($connId, $scope) assert Envelope('monitor', ConnectionScope(connId, scope));
|
|
on message Envelope('monitor', Disconnect($connId)) send Disconnect(connId);
|
|
}
|
|
|
|
spawn named 'websocketListener' {
|
|
assert M.Publish(M.Service(gatewayId, '_syndicate+ws._tcp'),
|
|
null, HTTP_PORT, ["tier=0", "path=/local"]);
|
|
assert M.Publish(M.Service(localId, '_syndicate+ws._tcp'),
|
|
null, HTTP_PORT, ["tier=0", "path=/monitor"]);
|
|
|
|
during Http.WebSocket($reqId, server, [], _) spawn named ['wsConnection', reqId] {
|
|
assert Connection(reqId);
|
|
on message Http.DataIn(reqId, $data) {
|
|
if (data instanceof Bytes) {
|
|
send Request(reqId, makeDecoder(data).next());
|
|
}
|
|
}
|
|
on message Response(reqId, $resp) send Http.DataOut(reqId, new Encoder().push(resp).contents());
|
|
stop on message Disconnect(reqId);
|
|
}
|
|
}
|
|
|
|
spawn named 'tcpListener' {
|
|
assert M.Publish(M.Service(gatewayId, '_syndicate._tcp'), null, TCP_PORT, ["tier=0"]);
|
|
on asserted S.IncomingConnection($id, S.TcpListener(TCP_PORT)) {
|
|
spawnStreamConnection('tcpServer', id);
|
|
}
|
|
}
|
|
|
|
spawn named 'unixListener' {
|
|
on asserted S.IncomingConnection($id, S.UnixSocketServer("./sock")) {
|
|
spawnStreamConnection('unixServer', id);
|
|
}
|
|
}
|
|
|
|
function spawnStreamConnection(debugLabel, id) {
|
|
spawn named [debugLabel, id] {
|
|
stop on retracted S.Duplex(id);
|
|
assert Connection(id);
|
|
const decoder = makeDecoder(null);
|
|
on message S.Data(id, $data) {
|
|
decoder.write(data);
|
|
let v;
|
|
while ((v = decoder.try_next())) {
|
|
send Request(id, v);
|
|
}
|
|
}
|
|
on message Response(id, $resp) send S.Push(id, new Encoder().push(resp).contents(), null);
|
|
stop on message Disconnect(id);
|
|
}
|
|
}
|
|
|
|
spawn named 'connectionHandler' {
|
|
during Proposal($scope, $assertion) assert Envelope(scope, assertion);
|
|
on message Proposal($scope, $assertion) send Envelope(scope, assertion);
|
|
|
|
during Connection($connId) spawn named Connection(connId) {
|
|
on start console.log(connId.toString(), 'connected');
|
|
on stop console.log(connId.toString(), 'disconnected');
|
|
|
|
field this.scope = null;
|
|
assert ConnectionScope(connId, this.scope) when (this.scope !== null);
|
|
|
|
let endpoints = Set();
|
|
|
|
on message Request(connId, Connect($scope)) {
|
|
// TODO: Enforce requirement that Connect appear exactly once, before anything else
|
|
this.scope = scope;
|
|
}
|
|
|
|
on message Request(connId, Assert($ep, $a)) {
|
|
if (!endpoints.includes(ep)) {
|
|
endpoints = endpoints.add(ep);
|
|
react {
|
|
on stop { endpoints = endpoints.remove(ep); }
|
|
|
|
field this.assertion = a;
|
|
assert Proposal(this.scope, this.assertion);
|
|
|
|
currentFacet().addEndpoint(() => {
|
|
if (Observe.isClassOf(this.assertion)) {
|
|
const spec = Envelope(this.scope, this.assertion.get(0));
|
|
const analysis = Skeleton.analyzeAssertion(spec);
|
|
analysis.callback = Dataspace.wrap((evt, vs) => {
|
|
currentFacet().actor.scheduleScript(() => {
|
|
console.log('EVENT', currentFacet().toString(), connId.toString(), ep, evt, vs);
|
|
switch (evt) {
|
|
case Skeleton.EVENT_ADDED:
|
|
send Response(connId, Add(ep, vs));
|
|
break;
|
|
case Skeleton.EVENT_REMOVED:
|
|
send Response(connId, Del(ep, vs));
|
|
break;
|
|
case Skeleton.EVENT_MESSAGE:
|
|
send Response(connId, Msg(ep, vs));
|
|
break;
|
|
}
|
|
});
|
|
});
|
|
return [Observe(spec), analysis];
|
|
} else {
|
|
return [void 0, null];
|
|
}
|
|
}, true);
|
|
|
|
on message Request(connId, Assert(ep, $newAssertion)) this.assertion = newAssertion;
|
|
stop on message Request(connId, Clear(ep));
|
|
}
|
|
}
|
|
}
|
|
|
|
on message Request(connId, Message($body)) {
|
|
send Proposal(this.scope, body);
|
|
}
|
|
|
|
on message Request(connId, $req) console.log('IN: ', connId.toString(), req.toString());
|
|
on message Response(connId, $resp) console.log('OUT:', connId.toString(), resp.toString());
|
|
}
|
|
}
|
|
|
|
spawn named 'peerDiscovery' {
|
|
// during M.DefaultGateway($gwif, _) {
|
|
// on start console.log('GW+', gwif);
|
|
// on stop console.log('GW-', gwif);
|
|
during M.Discovered(
|
|
M.Service($name, '_syndicate+ws._tcp'), $host, $port, $txt, $addr, "IPv4", $gwif)
|
|
{
|
|
const [dsId, peerId] = name.split(':');
|
|
|
|
let tier = null;
|
|
txt.forEach((t) => {
|
|
t.split(' ').forEach((kv) => {
|
|
const [k, v] = kv.split('=');
|
|
if (k === 'tier') {
|
|
tier = Number.parseInt(v);
|
|
}
|
|
});
|
|
});
|
|
|
|
on start console.log('+ws', gwif, tier, name, host, port, addr);
|
|
on stop console.log('-ws', gwif, tier, name, host, port, addr);
|
|
}
|
|
// }
|
|
|
|
/*
|
|
|
|
If there's a server on our gateway interface, see if it's better than us.
|
|
- if it is, use it.
|
|
- if it's not, pretend it isn't there.
|
|
|
|
If there's no server on our gateway interface (or we're pretending
|
|
none exists), try to connect to the top.
|
|
|
|
*/
|
|
}
|