}, function(rq) {
if(rq.method === 'REGISTER') {
var user = sip.parseUri(rq.headers.to.uri).user;
contacts[user] = rq.headers.contact;
var rs = sip.makeResponse(rq, 200, 'Ok');
rs.headers.to.tag = Math.floor(Math.random() * 1e6);
// Notice _proxy.send_ not sip.send
proxy.send(rs);
}
else {
var user = sip.parseUri(rq.uri).user;
if(contacts[user] && Array.isArray(contacts[user]) && contacts[user].length > 0) {
rq.uri = contacts[user][0].uri;
proxy.send(sip.makeResponse(rq, 100, 'Trying'));
proxy.send(rq);
}
else {
proxy.send(sip.makeResponse(rq, 404, 'Not Found'));
}
}
});
function(rq) {
try {
if(rq.method === 'REGISTER') {
//looking up user info
var username = sip.parseUri(rq.headers.to.uri).user;
var userinfo = registry[username];
if(!userinfo) { // we don't know this user and answer with a challenge to hide this fact
var session = {realm: realm};
sip.send(digest.challenge({realm: realm}, sip.makeResponse(rq, 401, 'Authentication Required')));
}
else {
userinfo.session = userinfo.session || {realm: realm};
if(!digest.authenticateRequest(userinfo.session, rq, {user: username, password: userinfo.password})) {
sip.send(digest.challenge(userinfo.session, sip.makeResponse(rq, 401, 'Authentication Required')));
}
else {
userinfo.contact = rq.headers.contact;
var rs = sip.makeResponse(rq, 200, 'Ok');
rs.headers.contact = rq.headers.contact;
sip.send(rs);
}
}
}
else if(rq.method === 'INVITE') {
var username = sip.parseUri(rq.uri).user;
var userinfo = registry[username]
if(userinfo && Array.isArray(userinfo.contact) && userinfo.contact.length > 0) {
var rs = sip.makeResponse(rq, 302, 'Moved');
rs.headers.contact = userinfo.contact;
sip.send(rs);
}
else {
sip.send(sip.makeResponse(rq, 404, 'Not Found'));
}
}
else {
sip.send(sip.makeResponse(rq, 405, 'Method Not Allowed'));
}
} catch(e) {
util.debug(e);
util.debug(e.stack);
sip.send(sip.makeResponse(rq, 500, "Server Internal Error"));
}
});
// Initiating a call example. Note: we use bogus sdp, so no real rtp session will be established.
var sip = require('sip');
var util = require('util');
var os = require('os');
console.log(process.argv);
console.log(process.argv[2]);
if(process.argv < 3 || !sip.parseUri(process.argv[2])) {
console.error('usage node make_call.js _uri_');
process.exit(1);
}
var dialogs = {};
function rstring() { return Math.floor(Math.random()*1e6).toString(); }
//starting stack
sip.start({}, function(rq) {
if(rq.headers.to.params.tag) { // check if it's an in dialog request
var id = [rq.headers['call-id'], rq.headers.to.params.tag, rq.headers.from.params.tag].join(':');
if(dialogs[id])
dialogs[id](rq);
else
sip.send(sip.makeResponse(rq, 481, "Call doesn't exists"));
}
else
sip.send(sip.makeResponse(rq, 405, 'Method not allowed'));
function getUser(sipuri){
var user = sip.parseUri(sipuri).user;
return (user);
}