/
ws_server.js
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/
ws_server.js
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#!/usr/bin/env node
var WebSocketServer = require('websocket').server;
var http = require('http');
var server = http.createServer(function(request, response) {
console.log('Received request from ' + request.url);
response.writeHead(404);
response.end();
});
server.listen(1337, function() {
console.log('Server is listening on port 1337.');
});
wsServer = new WebSocketServer({
httpServer: server,
autoAcceptConnections: false // because security matters
});
function isAllowedOrigin(origin) {
valid_origins = ['http://localhost', '127.0.0.1'];
if (valid_origins.indexOf(origin) != -1) {
console.log('Connection accepted from origin ' + origin);
return true;
}
return false;
}
wsServer.on('connection', function(webSocketConnection) {
console.log('Connection started.');
});
wsServer.on('request', function(request) {
var connection = isAllowedOrigin(request.origin) ?
request.accept()
: request.reject();
connection.on('message', function(message) {
var response = '';
console.log('Received Message: ' + message.utf8Data);
if (message.type === 'utf8') {
switch (message.utf8Data) {
case 'hi':
response = 'Hey there';
break;
case 'hello':
response = 'Heya!';
break;
case 'xyzzy':
response = 'Nothing happens.';
break;
case 'desu':
response = 'Keep typing, man. Keep typing.';
break;
default:
response = "Hello. Uh... what am I supposed to do with '" +
message.utf8Data + "'?";
}
connection.sendUTF(response);
}
});
connection.on('close', function(reasonCode, description) {
console.log(connection.remoteAddress + ' has been disconnected.');
});
});