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phorge-phorge/support/aphlict/server/lib/AphlictClientServer.js
Joshua Spence 53834d1471 Enable "strict" mode for NodeJS
Summary:
In particular, this changes the behavior of NodeJS in the following ways:

- Any attempt to get or modify the global object will result in an error.
- `null` values of `this` will no longer be evaluated to the global object and primitive values of this will not be converted to wrapper objects.
- Writing or deleting properties which have there writeable or configurable attributes set to false will now throw an error instead of failing silently.
- Adding a property to an object whose extensible attribute is false will also throw an error now.
- A functions arguments are not writeable so attempting to change them will now throw an error `arguments = [...]`.
- `with(){}` statements are gone.
- Use of `eval` is effectively banned.
- `eval` and `arguments` are not allowed as variable or function identifiers in any scope.
- The identifiers `implements`, `interface`, `let`, `package`, `private`, `protected`, `public`, `static` and `yield` are all now reserved for future use (roll on ES6).

Test Plan: Verified that Aphlict was still functional.

Reviewers: #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: Korvin, epriestley

Differential Revision: https://secure.phabricator.com/D11430
2015-01-20 07:43:10 +11:00

92 lines
2.1 KiB
JavaScript

'use strict';
var JX = require('./javelin').JX;
require('./AphlictListenerList');
require('./AphlictLog');
var util = require('util');
var WebSocket = require('ws');
JX.install('AphlictClientServer', {
construct: function(server) {
this.setListenerList(new JX.AphlictListenerList());
this.setLogger(new JX.AphlictLog());
this._server = server;
},
members: {
_server: null,
listen: function() {
var self = this;
var server = this._server.listen.apply(this._server, arguments);
var wss = new WebSocket.Server({server: server});
wss.on('connection', function(ws) {
var listener = self.getListenerList().addListener(ws);
function log() {
self.getLogger().log(
util.format('<%s>', listener.getDescription()) +
' ' +
util.format.apply(null, arguments));
}
log('Connected from %s.', ws._socket.remoteAddress);
ws.on('message', function(data) {
log('Received message: %s', data);
var message;
try {
message = JSON.parse(data);
} catch (err) {
log('Message is invalid: %s', err.message);
return;
}
switch (message.command) {
case 'subscribe':
log(
'Subscribed to: %s',
JSON.stringify(message.data));
listener.subscribe(message.data);
break;
case 'unsubscribe':
log(
'Unsubscribed from: %s',
JSON.stringify(message.data));
listener.unsubscribe(message.data);
break;
default:
log(
'Unrecognized command "%s".',
message.command || '<undefined>');
}
});
wss.on('close', function() {
self.getListenerList().removeListener(listener);
log('Disconnected.');
});
wss.on('error', function(err) {
log('Error: %s', err.message);
});
});
},
},
properties: {
listenerList: null,
logger: null,
}
});