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var sys = require('sys');
var ws = require('./ws');
var forge = require('../js/forge');
// function to create certificate
var createCert = function(cn, data)
{
sys.puts(
'Generating 512-bit key-pair and certificate for \"' + cn + '\".');
var keys = forge.pki.rsa.generateKeyPair(512);
sys.puts('key-pair created.');
var cert = forge.pki.createCertificate();
cert.serialNumber = '01';
cert.validity.notBefore = new Date();
cert.validity.notAfter = new Date();
cert.validity.notAfter.setFullYear(
cert.validity.notBefore.getFullYear() + 1);
var attrs = [{
name: 'commonName',
value: cn
}, {
name: 'countryName',
value: 'US'
}, {
shortName: 'ST',
value: 'Virginia'
}, {
name: 'localityName',
value: 'Blacksburg'
}, {
name: 'organizationName',
value: 'Test'
}, {
shortName: 'OU',
value: 'Test'
}];
cert.setSubject(attrs);
cert.setIssuer(attrs);
cert.setExtensions([{
name: 'basicConstraints',
cA: true
}, {
name: 'keyUsage',
keyCertSign: true,
digitalSignature: true,
nonRepudiation: true,
keyEncipherment: true,
dataEncipherment: true
}, {
name: 'subjectAltName',
altNames: [{
type: 6, // URI
value: 'http://myuri.com/webid#me'
}]
}]);
// FIXME: add subjectKeyIdentifier extension
// FIXME: add authorityKeyIdentifier extension
cert.publicKey = keys.publicKey;
// self-sign certificate
cert.sign(keys.privateKey);
// save data
data[cn] = {
cert: forge.pki.certificateToPem(cert),
privateKey: forge.pki.privateKeyToPem(keys.privateKey)
};
sys.puts('certificate created for \"' + cn + '\": \n' + data[cn].cert);
};
var data = {};
// create certificate for server
createCert('server', data);
// function to create TLS server connection
var createTls = function(websocket)
{
return forge.tls.createConnection(
{
server: true,
caStore: [],
sessionCache: {},
// supported cipher suites in order of preference
cipherSuites: [
forge.tls.CipherSuites.TLS_RSA_WITH_AES_128_CBC_SHA,
forge.tls.CipherSuites.TLS_RSA_WITH_AES_256_CBC_SHA],
connected: function(c)
{
sys.puts('Server connected');
},
verifyClient: true,
verify: function(c, verified, depth, certs)
{
sys.puts(
'Server verifying certificate w/CN: \"' +
certs[0].subject.getField('CN').value +
'\", verified: ' + verified + '...');
// accept any certificate (could actually do WebID authorization from
// here within the protocol)
return true;
},
getCertificate: function(c, hint)
{
sys.puts('Server getting certificate for \"' + hint[0] + '\"...');
return data.server.cert;
},
getPrivateKey: function(c, cert)
{
return data.server.privateKey;
},
tlsDataReady: function(c)
{
// send base64-encoded TLS data over websocket
websocket.write(forge.util.encode64(c.tlsData.getBytes()));
},
dataReady: function(c)
{
sys.puts('Server received \"' + c.data.getBytes() + '\"');
// send response
c.prepare('Hello Client');
},
closed: function(c)
{
sys.puts('Server disconnected.');
websocket.end();
},
error: function(c, error)
{
sys.puts('Server error: ' + error.message);
}
});
};
// create websocket server
var port = 8080;
ws.createServer(function(websocket)
{
// create TLS server connection
var tls = createTls(websocket);
websocket.addListener('connect', function(resource)
{
sys.puts('connected: ' + resource);
// close connection after 10 seconds
setTimeout(websocket.end, 10 * 1000);
});
websocket.addListener('data', function(data)
{
// base64-decode data and process it
tls.process(forge.util.decode64(data));
});
websocket.addListener('close', function()
{
sys.puts('closed');
});
}).listen(port);
sys.puts('server running on port ' + port);
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