org.restcomm.connect.telephony.ua.UserAgentManager Maven / Gradle / Ivy
/*
* TeleStax, Open Source Cloud Communications
* Copyright 2011-2014, Telestax Inc and individual contributors
* by the @authors tag.
*
* This program is free software: you can redistribute it and/or modify
* under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation; either version 3 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see results = registrations.getRegistrationsByInstanceId(instanceId);
for (final Registration result : results) {
if (result.isWebRTC()) {
//If this is a WebRTC registration remove it since after restart the websocket connection is gone
if (logger.isInfoEnabled())
logger.info("Will remove WebRTC client: "+result.getLocation());
registrations.removeRegistration(result);
monitoringService.tell(new UserRegistration(result.getUserName(), result.getLocation(), false, result.getOrganizationSid()), self());
} else {
final DateTime expires = result.getDateExpires();
if (expires.isBeforeNow() || expires.isEqualNow()) {
if (logger.isInfoEnabled()) {
logger.info("Registration: " + result.getLocation() + " expired and will be removed now");
}
registrations.removeRegistration(result);
monitoringService.tell(new UserRegistration(result.getUserName(), result.getLocation(), false, result.getOrganizationSid()), self());
monitoringService.tell(new GetCall(result.getLocation()), self());
} else {
final DateTime updated = result.getDateUpdated();
Long pingIntervalMillis = new Long(pingInterval * 1000 * 3);
if ((DateTime.now().getMillis() - updated.getMillis()) > pingIntervalMillis) {
//Last time this registration updated was older than (pingInterval * 3), looks like it doesn't respond to OPTIONS
if (logger.isInfoEnabled()) {
logger.info("Registration: " + result.getLocation() + " didn't respond to OPTIONS and will be removed now");
}
registrations.removeRegistration(result);
monitoringService.tell(new UserRegistration(result.getUserName(), result.getLocation(), false, result.getOrganizationSid()), self());
monitoringService.tell(new GetCall(result.getLocation()), self());
}
}
}
}
results = registrations.getRegistrationsByInstanceId(instanceId);
if (logger.isInfoEnabled())
logger.info("Initial registration cleanup finished, starting Restcomm with "+results.size()+" registrations");
}
private void clean() throws ServletException {
final RegistrationsDao registrations = storage.getRegistrationsDao();
final List results = registrations.getRegistrationsByInstanceId(instanceId);
for (final Registration result : results) {
final DateTime expires = result.getDateExpires();
if (expires.isBeforeNow() || expires.isEqualNow()) {
if(logger.isInfoEnabled()) {
logger.info("Registration: "+result.getAddressOfRecord()+" expired. Will ping again.");
}
//Instead of removing registrations we ping the client one last time to ensure it was not a temporary loss
// of connectivity. We don't need to remove the registration here. It will be handled only if the OPTIONS ping
// times out and the related calls from the client cleaned up as well
try{
ping(result.getLocation());
}catch(ServletParseException spe){
logger.warning("Bad Parameters: "+result.getLocation());
registrations.removeRegistration(result);
}
//registrations.removeRegistration(result);
//monitoringService.tell(new UserRegistration(result.getUserName(), result.getLocation(), false), self());
} else {
final DateTime updated = result.getDateUpdated();
Long pingIntervalMillis = new Long(pingInterval * 1000 * 3);
if ((DateTime.now().getMillis() - updated.getMillis()) > pingIntervalMillis) {
//Last time this registration updated was older than (pingInterval * 3), looks like it doesn't respond to OPTIONS
if (logger.isInfoEnabled()) {
logger.info("Registration: " + result.getAddressOfRecord() + " didn't respond to OPTIONS. Will ping again.");
}
// Instead of removing registrations we ping the client one last time to ensure it was not a temporary loss
// of connectivity. We don't need to remove the registration here. It will be handled only if the OPTIONS ping
// times out and the related calls from the client cleaned up as well
try{
ping(result.getLocation());
}catch(ServletParseException spe){
logger.warning("Bad Parameters: "+result.getLocation());
registrations.removeRegistration(result);
}
// registrations.removeRegistration(result);
// monitoringService.tell(new UserRegistration(result.getUserName(), result.getLocation(), false), self());
}
}
}
}
private void disconnectActiveCalls(ActorRef call) {
if (call != null && !call.isTerminated()) {
call.tell(new Hangup("Registration_Removed"), self());
//callManager.tell(new DestroyCall(call), self());
if (logger.isDebugEnabled()) {
logger.debug("Disconnected call: "+call.path()+" , after registration removed");
}
}
}
private String header(final String nonce, final String realm, final String scheme) {
final StringBuilder buffer = new StringBuilder();
buffer.append(scheme).append(" ");
buffer.append("realm=\"").append(realm).append("\", ");
buffer.append("nonce=\"").append(nonce).append("\"");
return buffer.toString();
}
private void authenticate(final Object message) throws IOException {
final SipServletRequest request = (SipServletRequest) message;
final SipServletResponse response = request.createResponse(SC_PROXY_AUTHENTICATION_REQUIRED);
final String nonce = nonce();
final SipURI uri = (SipURI) request.getTo().getURI();
final String realm = uri.getHost();
final String header = header(nonce, realm, "Digest");
response.addHeader("Proxy-Authenticate", header);
response.send();
}
private void keepAlive() throws Exception {
final RegistrationsDao registrations = storage.getRegistrationsDao();
final List results = registrations.getRegistrationsByInstanceId(instanceId);
if (results != null && results.size() > 0) {
if (logger.isDebugEnabled()) {
logger.debug("Registrations for InstanceId: "+ instanceId +" , returned "+results.size()+" registrations");
}
for (final Registration result : results) {
final String to = result.getLocation();
try{
ping(to);
}catch(ServletParseException spe){
logger.warning("Bad Parameters: "+to);
registrations.removeRegistration(result);
}
}
} else {
if (logger.isDebugEnabled()) {
logger.debug("Registrations for InstanceId: "+ instanceId +" , returned no registrations");
}
}
}
private String nonce() {
final byte[] uuid = UUID.randomUUID().toString().getBytes();
final char[] hex = toHex(uuid);
return new String(hex).substring(0, 31);
}
@Override
public void onReceive(final Object message) throws Exception {
final Class klass = message.getClass();
final ActorRef sender = sender();
if (logger.isInfoEnabled()) {
logger.info("UserAgentManager Processing Message: \"" + klass.getName() + " sender : "+ sender.getClass()+" self is terminated: "+self().isTerminated());
}
if (message instanceof ReceiveTimeout) {
if (logger.isDebugEnabled()) {
logger.debug("Timeout received, ping interval: "+pingInterval+" , will clean up registrations and send keep alive");
}
clean();
keepAlive();
} else if (message instanceof SipServletRequest) {
final SipServletRequest request = (SipServletRequest) message;
final String method = request.getMethod();
if ("REGISTER".equalsIgnoreCase(method)) {
if (logger.isDebugEnabled()) {
logger.debug("REGISTER request received: "+request.toString());
}
if (actAsImsUa) {
proxyRequestToIms(request);
} else if(authenticateUsers) { // https://github.com/Mobicents/RestComm/issues/29 Allow disabling of SIP authentication
final String authorization = request.getHeader("Proxy-Authorization");
if (authorization != null) {
if (permitted(authorization, method, (SipURI) request.getFrom().getURI())) {
register(message);
} else {
SipServletResponse response = ((SipServletRequest) message).createResponse(javax.servlet.sip.SipServletResponse.SC_FORBIDDEN); //Issue #935, Send 403 FORBIDDEN instead of issuing 407 again and again
response.send();
}
} else {
authenticate(message);
}
} else {
register(message);
}
}
} else if (message instanceof SipServletResponse) {
SipServletResponse response = (SipServletResponse) message;
if (response.getStatus()>400 && response.getMethod().equalsIgnoreCase("OPTIONS")) {
removeRegistration(response);
} else if (actAsImsUa && response.getMethod().equalsIgnoreCase(REGISTER)) {
proxyResponseFromIms(message, response);
} else {
pong(message);
}
} else if(message instanceof ActorRef) {
disconnectActiveCalls((ActorRef) message);
}
}
private void removeRegistration(final SipServletMessage sipServletMessage) throws ServletParseException {
removeRegistration(sipServletMessage, false);
}
private void removeRegistration(final SipServletMessage sipServletMessage, boolean locationInContact) throws ServletParseException{
String user = ((SipURI)sipServletMessage.getTo().getURI()).getUser();
SipURI location = locationInContact ? ((SipURI)sipServletMessage.getAddressHeader("Contact").getURI()) :
((SipURI)sipServletMessage.getTo().getURI());
if(logger.isDebugEnabled()) {
logger.debug("Error response for the OPTIONS to: "+location+" will remove registration");
}
final RegistrationsDao regDao = storage.getRegistrationsDao();
List registrations = regDao.getRegistrationsByLocation(user, "%"+location.getHost()+":"+location.getPort());
if(logger.isDebugEnabled()) {
logger.debug("Resultant registrations of given criteria, that will be removed are:"+registrations);
}
if (registrations != null) {
Iterator iter = registrations.iterator();
SipURI regLocation = null;
while (iter.hasNext()) {
Registration reg = iter.next();
try {
regLocation = (SipURI) factory.createURI(reg.getLocation());
} catch (ServletParseException e) {}
// Long pingIntervalMillis = new Long(pingInterval * 1000 * 3);
// boolean optionsTimeout = ((DateTime.now().getMillis() - reg.getDateUpdated().getMillis()) > pingIntervalMillis);
if(logger.isDebugEnabled()) {
logger.debug("regLocation: " + regLocation + " reg.getAddressOfRecord(): "+reg.getAddressOfRecord() +
" reg.getLocation(): "+reg.getLocation() + ", reg.getDateExpires(): " + reg.getDateExpires()
+ ", reg.getDateUpdated(): " + reg.getDateUpdated()
+ ", location: " + location
+ ", reg.getLocation().contains(location): " + reg.getLocation().contains(location.toString()));
if (reg.getDateExpires().isBeforeNow() || reg.getDateExpires().isEqualNow()) {
logger.debug("Registration: "+ reg.getAddressOfRecord()+" expired");
}
}
String locationStored = getLocationWithoutParameters(regLocation);
String locationToTest = getLocationWithoutParameters(location);
// We clean up only if the location is similar to the registration location to avoid cleaning up all registration lcoation for the AOR
// We keep getting REGISTER and allow for some leeway in case of connectivity issues from restcomm clients.
// if (regLocation != null && optionsTimeout && reg.getLocation().contains(location) &&
if (locationStored != null && locationStored.equalsIgnoreCase(locationToTest) ) {
// && (reg.getAddressOfRecord().equalsIgnoreCase(regLocation.toString()) || reg.getLocation().equalsIgnoreCase(regLocation.toString()))) {
if(logger.isDebugEnabled()) {
logger.debug("Registration: " + reg.getLocation() + " failed to response to OPTIONS and will be removed");
}
regDao.removeRegistration(reg);
monitoringService.tell(new UserRegistration(reg.getUserName(), reg.getLocation(), false, reg.getOrganizationSid()), self());
monitoringService.tell(new GetCall(reg.getLocation()), self());
} else {
if (logger.isDebugEnabled()) {
String msg = String.format("Registration DID NOT removed. SIP Message location: %s, registration location (in DB) %s.", locationToTest, reg.getLocation());
logger.debug(msg);
}
}
}
}
}
private String getLocationWithoutParameters(final SipURI location) {
String result = null;
result = "sip:"+location.getUser()+"@"+location.getHost()+":"+location.getPort();
return result;
}
private void patch(final SipURI uri, final String address, final int port) throws UnknownHostException {
uri.setHost(address);
uri.setPort(port);
}
private boolean permitted(final String authorization, final String method, SipURI sipURI) {
final Map map = toMap(authorization);
final String user = map.get("username").trim();
final String algorithm = map.get("algorithm");
final String realm = map.get("realm");
final String uri = map.get("uri");
final String nonce = map.get("nonce");
final String nc = map.get("nc");
final String cnonce = map.get("cnonce");
final String qop = map.get("qop");
final String response = map.get("response");
final ClientsDao clients = storage.getClientsDao();
final Client client = clients.getClient(user, OrganizationUtil.getOrganizationSidBySipURIHost(storage, sipURI));
if (client != null && Client.ENABLED == client.getStatus()) {
final String password = client.getPassword();
final String result = DigestAuthentication.response(algorithm, user, realm, password, nonce, nc, cnonce, method,
uri, null, qop);
return result.equals(response);
} else {
return false;
}
}
private void ping(final String to) throws ServletException {
final SipApplicationSession application = factory.createApplicationSession();
String toTransport = ((SipURI) factory.createURI(to)).getTransportParam();
if (toTransport == null) {
// RESTCOMM-301 NPE in RestComm Ping
toTransport = "udp";
}
/* sometime users on webrtc clients like olympus, closes the tab instead of properly hangup.
* so removing this check so we could send OPTIONS to WebRtc clients as well:
* if (toTransport.equalsIgnoreCase("ws") || toTransport.equalsIgnoreCase("wss")) {
return;
}*/
final SipURI outboundInterface = outboundInterface(toTransport);
StringBuilder buffer = new StringBuilder();
buffer.append("sip:restcomm").append("@").append(outboundInterface.getHost());
final String from = buffer.toString();
final SipServletRequest ping = factory.createRequest(application, "OPTIONS", from, to);
final SipURI uri = (SipURI) factory.createURI(to);
ping.pushRoute(uri);
ping.setRequestURI(uri);
final SipSession session = ping.getSession();
session.setHandler("UserAgentManager");
if(logger.isDebugEnabled()) {
logger.debug("About to send OPTIONS keepalive to: "+to);
}
try {
ping.send();
} catch (IOException e) {
if (logger.isInfoEnabled()) {
logger.info("There was a problem while trying to ping client: "+to+" , will remove registration. " + e.getMessage());
}
removeRegistration(ping);
}
}
private void pong(final Object message) {
final SipServletResponse response = (SipServletResponse) message;
if (response.getApplicationSession().isValid()) {
try {
response.getApplicationSession().setInvalidateWhenReady(true);
} catch (IllegalStateException ise) {
if (logger.isDebugEnabled()) {
logger.debug("The session was already invalidated, nothing to do");
}
}
}
final RegistrationsDao registrations = storage.getRegistrationsDao();
SipURI toUri = (SipURI)response.getTo().getURI();
String location = "%"+toUri.getHost()+":"+toUri.getPort();
List registrationList = registrations.getRegistrationsByLocation(toUri.getUser(), location);
//Registration here shouldn't be null. Update it
if(registrationList != null && !registrationList.isEmpty()){
Registration registration = registrationList.get(0).updated();
registrations.updateRegistration(registration);
}else{
if (logger.isDebugEnabled()) {
logger.debug(String.format("UAM pong: Could not find any registration for %s Location %s", toUri.getUser(), location));
}
}
}
private SipURI outboundInterface(String toTransport) {
SipURI result = null;
@SuppressWarnings("unchecked")
final List uris = (List) servletContext.getAttribute(OUTBOUND_INTERFACES);
for (final SipURI uri : uris) {
final String transport = uri.getTransportParam();
if (toTransport != null && toTransport.equalsIgnoreCase(transport)) {
result = uri;
}
}
return result;
}
private void register(final Object message) throws Exception {
final SipServletRequest request = (SipServletRequest) message;
final Address contact = request.getAddressHeader("Contact");
// Get the expiration time.
int ttl = contact.getExpires();
if (ttl == -1) {
final String expires = request.getHeader("Expires");
if (expires != null) {
ttl = parseInt(expires);
} else {
ttl = 3600;
}
}
// Make sure registrations don't last more than 1 hour.
if (ttl > 3600) {
ttl = 3600;
}
if (logger.isDebugEnabled()) {
logger.debug("Register request received for contact: "+contact+", and ttl: "+ttl);
}
// Get the rest of the information needed for a registration record.
String name = contact.getDisplayName();
String ua = request.getHeader("User-Agent");
final SipURI to = (SipURI) request.getTo().getURI();
final String aor = to.toString();
final String user = to.getUser().trim();
final SipURI uri = (SipURI) contact.getURI();
final String ip = request.getInitialRemoteAddr();
final int port = request.getInitialRemotePort();
String transport = (uri.getTransportParam()==null?request.getParameter("transport"):uri.getTransportParam()); //Issue #935, take transport of initial request-uri if contact-uri has no transport parameter
//If RURI is secure (SIPS) then pick TLS for transport - https://github.com/RestComm/Restcomm-Connect/issues/1956
if (((SipURI)request.getRequestURI()).isSecure()) {
transport = "tls";
}
if (transport == null && !request.getInitialTransport().equalsIgnoreCase("udp")) {
//Issue1068, if Contact header or RURI doesn't specify transport, check InitialTransport from
transport = request.getInitialTransport();
}
boolean isLBPresent = false;
//Issue 306: https://telestax.atlassian.net/browse/RESTCOMM-306
final String initialIpBeforeLB = request.getHeader("X-Sip-Balancer-InitialRemoteAddr");
final String initialPortBeforeLB = request.getHeader("X-Sip-Balancer-InitialRemotePort");
if(initialIpBeforeLB != null && !initialIpBeforeLB.isEmpty() && initialPortBeforeLB != null && !initialPortBeforeLB.isEmpty()) {
if(logger.isInfoEnabled()) {
logger.info("Client in front of LB. Patching URI: "+uri.toString()+" with IP: "+initialIpBeforeLB+" and PORT: "+initialPortBeforeLB+" for USER: "+user);
}
patch(uri, initialIpBeforeLB, Integer.valueOf(initialPortBeforeLB));
isLBPresent = true;
} else {
if(logger.isInfoEnabled()) {
logger.info("Patching URI: " + uri.toString() + " with IP: " + ip + " and PORT: " + port + " for USER: " + user);
}
patch(uri, ip, port);
}
final String address = createAddress(request);
// Prepare the response.
final SipServletResponse response = request.createResponse(SC_OK);
// Update the data store.
final Sid sid = Sid.generate(Sid.Type.REGISTRATION);
final DateTime now = DateTime.now();
// Issue 87
// (http://www.google.com/url?q=https://bitbucket.org/telestax/telscale-restcomm/issue/87/verb-and-not-working-for-end-to-end-calls%23comment-5855486&usd=2&usg=ALhdy2_mIt4FU4Yb_EL-s0GZCpBG9BB8eQ)
// if display name or UA are null, the hasRegistration returns 0 even if there is a registration
if (name == null)
name = user;
if (ua == null)
ua = "GenericUA";
boolean webRTC = isWebRTC(transport, ua);
Sid organizationSid = OrganizationUtil.getOrganizationSidBySipURIHost(storage, to);
final Registration registration = new Registration(sid, instanceId, now, now, aor, name, user, ua, ttl, address, webRTC, isLBPresent, organizationSid);
final RegistrationsDao registrations = storage.getRegistrationsDao();
if (ttl == 0) {
// Remove Registration if ttl=0
registrations.removeRegistration(registration);
response.setHeader("Expires", "0");
monitoringService.tell(new UserRegistration(user, address, false, organizationSid), self());
if(logger.isInfoEnabled()) {
logger.info("The user agent manager unregistered " + user + " at address "+address+":"+port);
}
} else {
monitoringService.tell(new UserRegistration(user, address, true, organizationSid), self());
if (registrations.hasRegistration(registration)) {
// Update Registration if exists
registrations.updateRegistration(registration);
if(logger.isInfoEnabled()) {
logger.info("The user agent manager updated " + user + " at address " + address+":"+port);
}
} else {
// Add registration since it doesn't exists on the DB
registrations.addRegistration(registration);
if(logger.isInfoEnabled()) {
logger.info("The user agent manager registered " + user + " at address " + address+":"+port);
}
}
response.setHeader("Contact", contact(uri, ttl));
}
// Success
response.send();
// Cleanup
// if(request.getSession().isValid()) {
// request.getSession().invalidate();
// }
try {
if (request != null) {
if (request.getApplicationSession() != null) {
if (request.getApplicationSession().isValid()) {
try {
request.getApplicationSession().setInvalidateWhenReady(true);
} catch (IllegalStateException exception) {
logger.warning("Illegal State: while trying to setInvalidateWhenReady(true) for application session, message: "+exception.getMessage());
}
}
} else {
if (logger.isInfoEnabled()) {
logger.info("After sent response: "+response.toString()+" for Register request, application session is NULL!");
}
}
} else {
if (logger.isInfoEnabled()) {
logger.info("After sent response: "+response.toString()+" for Register request, request is NULL!");
}
}
} catch (Exception e) {
logger.error("Exception while trying to setInvalidateWhenReady(true) after sent response to register : "+response.toString()+" exception: "+e);
}
}
private String createAddress(SipServletRequest request) throws ServletParseException {
final Address contact = request.getAddressHeader("Contact");
final SipURI uri = (SipURI) contact.getURI();
final SipURI to = (SipURI) request.getTo().getURI();
final String user = to.getUser().trim();
String transport = (uri.getTransportParam()==null?request.getParameter("transport"):uri.getTransportParam()); //Issue #935, take transport of initial request-uri if contact-uri has no transport parameter
//If RURI is secure (SIPS) then pick TLS for transport - https://github.com/RestComm/Restcomm-Connect/issues/1956
if (((SipURI)request.getRequestURI()).isSecure()) {
transport = "tls";
}
if (transport == null && !request.getInitialTransport().equalsIgnoreCase("udp")) {
//Issue1068, if Contact header or RURI doesn't specify transport, check InitialTransport from
transport = request.getInitialTransport();
}
final StringBuffer buffer = new StringBuffer();
if (((SipURI)request.getRequestURI()).isSecure()) {
buffer.append("sips:");
} else {
buffer.append("sip:");
}
buffer.append(normalize(user)).append("@").append(uri.getHost()).append(":").append(uri.getPort());
// https://bitbucket.org/telestax/telscale-restcomm/issue/142/restcomm-support-for-other-transports-than
if (transport != null) {
buffer.append(";transport=").append(transport);
}
Iterator extraParameterNames = uri.getParameterNames();
while (extraParameterNames.hasNext()) {
String paramName = extraParameterNames.next();
if (!paramName.equalsIgnoreCase("transport")) {
String paramValue = uri.getParameter(paramName);
buffer.append(";");
buffer.append(paramName);
buffer.append("=");
buffer.append(paramValue);
}
}
return buffer.toString();
}
/**
* Checks whether the client is WebRTC or not.
*
*
* A client is considered WebRTC if one of the following statements is true:
* 1. The chosen transport is WebSockets (transport=ws).
* 2. The chosen transport is WebSockets Secured (transport=wss).
* 3. The User-Agent corresponds to one of TeleStax mobile clients.
*
*
* @param transport
* @param userAgent
* @return
*/
private boolean isWebRTC(String transport, String userAgent) {
return "ws".equalsIgnoreCase(transport) || "wss".equalsIgnoreCase(transport) || userAgent.toLowerCase().contains("restcomm");
}
private String contact(final SipURI uri, final int expires) {
final Address contact = factory.createAddress(uri);
contact.setExpires(expires);
return contact.toString();
}
private Map toMap(final String header) {
final Map map = new HashMap();
final int endOfScheme = header.indexOf(" ");
map.put("scheme", header.substring(0, endOfScheme).trim());
final String[] tokens = header.substring(endOfScheme + 1).split(",");
for (final String token : tokens) {
final String[] values = token.trim().split("=",2); //Issue #935, split only for first occurrence of "="
map.put(values[0].toLowerCase(), values[1].replace("\"", ""));
}
return map;
}
private void proxyResponseFromIms(Object message, SipServletResponse response) throws ServletParseException, IOException {
if(logger.isDebugEnabled()) {
logger.debug("REGISTER IMS Response received: "+message);
}
final SipServletRequest incomingRequest = (SipServletRequest) response.getApplicationSession().getAttribute(REQ_PARAMETER);
String wwwAuthenticate = response.getHeader("WWW-Authenticate");
final Address contact = incomingRequest.getAddressHeader("Contact");
final SipURI uri = (SipURI) contact.getURI();
final String ip = incomingRequest.getInitialRemoteAddr();
final int port = incomingRequest.getInitialRemotePort();
String ua = incomingRequest.getHeader("User-Agent");
String name = contact.getDisplayName();
final SipURI to = (SipURI) incomingRequest.getTo().getURI();
final String aor = to.toString();
final String user = to.getUser();
boolean isLBPresent = false;
//Issue 306: https://telestax.atlassian.net/browse/RESTCOMM-306
final String initialIpBeforeLB = incomingRequest.getHeader("X-Sip-Balancer-InitialRemoteAddr");
final String initialPortBeforeLB = incomingRequest.getHeader("X-Sip-Balancer-InitialRemotePort");
if(initialIpBeforeLB != null && !initialIpBeforeLB.isEmpty() && initialPortBeforeLB != null && !initialPortBeforeLB.isEmpty()) {
if(logger.isInfoEnabled()) {
logger.info("Client in front of LB. Patching URI: "+uri.toString()+" with IP: "+initialIpBeforeLB+" and PORT: "+initialPortBeforeLB+" for USER: "+user);
}
patch(uri, initialIpBeforeLB, Integer.valueOf(initialPortBeforeLB));
isLBPresent = true;
} else {
if(logger.isInfoEnabled()) {
logger.info("Patching URI: " + uri.toString() + " with IP: " + ip + " and PORT: " + port + " for USER: " + user);
}
patch(uri, ip, port);
}
SipServletResponse incomingLegResposne = incomingRequest.createResponse(response.getStatus(), response.getReasonPhrase());
if (wwwAuthenticate != null) {
incomingLegResposne.addHeader("WWW-Authenticate", wwwAuthenticate);
}
int ttl = 3600;
final Address imsContact = response.getAddressHeader("Contact");
if (imsContact != null) {
ttl = imsContact.getExpires();
if (ttl == -1) {
final String expires = response.getRequest().getHeader("Expires");
if (expires != null) {
ttl = parseInt(expires);
} else {
ttl = 3600;
}
}
final SipURI sipURI = (SipURI) contact.getURI();
String newContact = contact(sipURI, ttl);
if(logger.isInfoEnabled()) {
logger.info("ttl: "+ttl);
logger.info("new contact: "+newContact);
}
incomingLegResposne.setHeader("Contact", newContact);
}
if(logger.isInfoEnabled()) {
logger.info("outgoing leg state: "+response.getSession().getState());
logger.info("incoming leg state: "+incomingLegResposne.getSession().getState());
}
if (response.getStatus()>=400 && response.getStatus() != SC_UNAUTHORIZED && response.getStatus() != SC_PROXY_AUTHENTICATION_REQUIRED) {
removeRegistration(incomingRequest, true);
} else if (response.getStatus()==200) {
String transport = (uri.getTransportParam()==null?incomingRequest.getParameter("transport"):uri.getTransportParam()); //Issue #935, take transport of initial request-uri if contact-uri has no transport parameter
if (transport == null && !incomingRequest.getInitialTransport().equalsIgnoreCase("udp")) {
//Issue1068, if Contact header or RURI doesn't specify transport, check InitialTransport from
transport = incomingRequest.getInitialTransport();
}
final Sid sid = Sid.generate(Sid.Type.REGISTRATION);
final DateTime now = DateTime.now();
final StringBuffer buffer = new StringBuffer();
buffer.append("sip:").append(normalize(user)).append("@").append(uri.getHost()).append(":").append(uri.getPort());
// https://bitbucket.org/telestax/telscale-restcomm/issue/142/restcomm-support-for-other-transports-than
if (transport != null) {
buffer.append(";transport=").append(transport);
}
final String address = buffer.toString();
if (name == null)
name = user;
if (ua == null)
ua = "GenericUA";
boolean webRTC = isWebRTC(transport, ua);
Sid organizationSid = OrganizationUtil.getOrganizationSidBySipURIHost(storage, to);
final Registration registration = new Registration(sid, RestcommConfiguration.getInstance().getMain().getInstanceId(), now, now, aor, name, user, ua, ttl, address, webRTC, isLBPresent, organizationSid);
final RegistrationsDao registrations = storage.getRegistrationsDao();
if (ttl == 0) {
// Remove Registration if ttl=0
registrations.removeRegistration(registration);
incomingLegResposne.setHeader("Expires", "0");
monitoringService.tell(new UserRegistration(user, address, false, organizationSid), self());
if(logger.isInfoEnabled()) {
logger.info("The user agent manager unregistered " + user + " at address "+address+":"+port);
}
} else {
monitoringService.tell(new UserRegistration(user, address, true, organizationSid), self());
if (registrations.hasRegistration(registration)) {
// Update Registration if exists
registrations.updateRegistration(registration);
if(logger.isInfoEnabled()) {
logger.info("The user agent manager updated " + user + " at address " + address+":"+port);
}
} else {
// Add registration since it doesn't exists on the DB
registrations.addRegistration(registration);
if(logger.isInfoEnabled()) {
logger.info("The user agent manager registered " + user + " at address " + address+":"+port);
}
}
}
}
incomingLegResposne.send();
if(logger.isDebugEnabled()) {
logger.debug("REGISTER IMS Response sent: "+incomingLegResposne);
}
}
/**
* normalize: normalize clients that contain @ sign in user e.g. [email protected]
* @param user
* @return
*/
private String normalize(String user) {
if(user != null){
if(user.contains("@"))
user = user.replaceAll("@", "%40");
}
if(logger.isDebugEnabled())
logger.debug("Normalized User = " + user);
return user;
}
private void proxyRequestToIms(SipServletRequest request) throws ServletParseException, IOException {
// TODO question - this method is deprecated but only that can be used to set callId which has to be the same for both REGISTER messages
final SipServletRequest outgoingRequest = factory.createRequest(request, true);
Parameterable via = outgoingRequest.getParameterableHeader("Via");
if (via == null) {
seltLocalContact(outgoingRequest);
} else {
String[] strings = via.getValue().trim().split(" ");
if (strings.length != 2) {
seltLocalContact(outgoingRequest);
} else {
outgoingRequest.removeHeader("Contact");
String addressFromVia = strings[1].trim();
Address address = factory.createAddress("sip:" + addressFromVia);
outgoingRequest.setAddressHeader("Contact", address);
}
}
request.getApplicationSession().setAttribute(REQ_PARAMETER, request);
final SipURI routeToRegistrar = factory.createSipURI(null, imsProxyAddress);
routeToRegistrar.setLrParam(true);
routeToRegistrar.setPort(imsProxyPort);
outgoingRequest.pushRoute(routeToRegistrar);
final SipURI requestUri = factory.createSipURI(null, imsDomain);
outgoingRequest.setRequestURI(requestUri);
if(logger.isDebugEnabled()) {
logger.debug("Sending to ims proxy: "+ outgoingRequest);
}
outgoingRequest.send();
}
private void seltLocalContact(SipServletRequest outgoingRequest) throws ServletParseException {
Address contact = outgoingRequest.getAddressHeader("Contact");
SipURI sipURI = ((SipURI)contact.getURI());
sipURI.setPort(outgoingRequest.getLocalPort());
sipURI.setHost(outgoingRequest.getLocalAddr());
}
@Override
public void postStop() {
try {
if (logger.isInfoEnabled()) {
logger.info("UserAgentManager actor at postStop, path: "+self().path()+", isTerminated: "+self().isTerminated()+", sender: "+sender());
if (storage != null){
logger.info("Number of current Registrations:" + storage.getRegistrationsDao().getRegistrations().size());
}
}
} catch (Exception exception) {
if(logger.isInfoEnabled()) {
logger.info("Exception during UserAgentManager postStop");
}
}
super.postStop();
}
}
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