/**
* Utility method to create a hop from a SIP URI
*
* @param sipUri
* @return
*/
private final Hop createHop(SipURI sipUri, Request request) {
// always use TLS when secure
String transport = sipUri.isSecure() ? SIPConstants.TLS : sipUri.getTransportParam();
if (transport == null) {
// @see issue 131
ViaHeader via = (ViaHeader) request.getHeader(ViaHeader.NAME);
transport = via.getTransport();
}
// sipUri.removeParameter("transport");
int port;
if (sipUri.getPort() != -1) {
port = sipUri.getPort();
} else {
if (transport.equalsIgnoreCase(SIPConstants.TLS)) port = 5061;
else port = 5060; // TCP or UDP
}
String host = sipUri.getMAddrParam() != null ? sipUri.getMAddrParam() : sipUri.getHost();
AddressResolver addressResolver = this.sipStack.getAddressResolver();
return addressResolver.resolveAddress(new HopImpl(host, port, transport));
}
/** This is a listener method. */
public void processRequest(RequestEvent requestEvent) {
Request request = requestEvent.getRequest();
SipProvider sipProvider = (SipProvider) requestEvent.getSource();
ServerTransaction serverTransaction = requestEvent.getServerTransaction();
try {
if (ProxyDebug.debug)
ProxyDebug.println(
"\n****************************************************"
+ "\nRequest "
+ request.getMethod()
+ " received:\n"
+ request.toString());
if (ProxyDebug.debug) ProxyUtilities.printTransaction(serverTransaction);
/** **************************************************************************** */
/** ********************* PROXY BEHAVIOR *********************************** */
/** **************************************************************************** */
/*
* RFC 3261: 16.2: For all new requests, including any with unknown
* methods, an element intending to proxy the request MUST:
*
* 1. Validate the request (Section 16.3)
*
* 2. Preprocess routing information (Section 16.4)
*
* 3. Determine target(s) for the request (Section 16.5)
*
* 4. Forward the request to each target (Section 16.6)
*
* 5. Process all responses (Section 16.7)
*/
/** **************************************************************************** */
/** *************************** 1. Validate the request (Section 16.3) ********* */
/** **************************************************************************** */
/*
* Before an element can proxy a request, it MUST verify the
* message's validity
*/
RequestValidation requestValidation = new RequestValidation(this);
if (!requestValidation.validateRequest(sipProvider, request, serverTransaction)) {
// An appropriate response has been sent back by the request
// validation step, so we just return. The request has been
// processed!
if (ProxyDebug.debug)
ProxyDebug.println(
"Proxy, processRequest(), the request has not been"
+ " validated, so the request is discarded "
+ " (an error code has normally been"
+ " sent back)");
return;
}
// Let's check if the ACK is for the proxy: if there is no Route
// header: it is mandatory for the ACK to be forwarded
if (request.getMethod().equals(Request.ACK)) {
ListIterator routes = request.getHeaders(RouteHeader.NAME);
if (routes == null || !routes.hasNext()) {
if (ProxyDebug.debug)
ProxyDebug.println(
"Proxy, processRequest(), "
+ "the request is an ACK"
+ " targeted for the proxy, we ignore it");
return;
}
/* added code */
CallID call_id = (CallID) request.getHeader(CallID.CALL_ID);
String call_id_str = call_id.getCallId();
TimeThreadController.Start(call_id_str);
/* end of added code */
}
if (serverTransaction == null) {
String method = request.getMethod();
// Methods that creates dialogs, so that can
// generate transactions
if (method.equals(Request.INVITE) || method.equals(Request.SUBSCRIBE)) {
try {
serverTransaction = sipProvider.getNewServerTransaction(request);
TransactionsMapping transactionsMapping =
(TransactionsMapping) serverTransaction.getDialog().getApplicationData();
if (transactionsMapping == null) {
transactionsMapping = new TransactionsMapping(serverTransaction);
}
} catch (TransactionAlreadyExistsException e) {
if (ProxyDebug.debug)
ProxyDebug.println(
"Proxy, processRequest(), this request" + " is a retransmission, we drop it!");
}
}
}
/** ************************************************************************ */
/** **** 2. Preprocess routing information (Section 16.4) ****************** */
/** ************************************************************************ */
/*
* The proxy MUST inspect the Request-URI of the request. If the
* Request-URI of the request contains a value this proxy previously
* placed into a Record-Route header field (see Section 16.6 item
* 4), the proxy MUST replace the Request-URI in the request with
* the last value from the Route header field, and remove that value
* from the Route header field. The proxy MUST then proceed as if it
* received this modified request. ..... (idem to below:) 16.12. The
* proxy will inspect the URI in the topmost Route header field
* value. If it indicates this proxy, the proxy removes it from the
* Route header field (this route node has been reached).
*/
ListIterator routes = request.getHeaders(RouteHeader.NAME);
if (routes != null) {
if (routes.hasNext()) {
RouteHeader routeHeader = (RouteHeader) routes.next();
Address routeAddress = routeHeader.getAddress();
SipURI routeSipURI = (SipURI) routeAddress.getURI();
String host = routeSipURI.getHost();
int port = routeSipURI.getPort();
if (sipStack.getIPAddress().equals(host)) {
Iterator lps = sipStack.getListeningPoints();
while (lps != null && lps.hasNext()) {
ListeningPoint lp = (ListeningPoint) lps.next();
if (lp.getPort() == port) {
if (ProxyDebug.debug)
ProxyDebug.println(
"Proxy, processRequest(),"
+ " we remove the first route form "
+ " the RouteHeader;"
+ " it matches the proxy");
routes.remove();
break;
}
}
}
}
}
/*
* If the Request-URI contains a maddr parameter, the proxy MUST
* check to see if its value is in the set of addresses or domains
* the proxy is configured to be responsible for. If the Request-URI
* has a maddr parameter with a value the proxy is responsible for,
* and the request was received using the port and transport
* indicated (explicitly or by default) in the Request-URI, the
* proxy MUST strip the maddr and any non-default port or transport
* parameter and continue processing as if those values had not been
* present in the request.
*/
URI requestURI = request.getRequestURI();
if (requestURI.isSipURI()) {
SipURI requestSipURI = (SipURI) requestURI;
if (requestSipURI.getMAddrParam() != null) {
// The domain the proxy is configured to be responsible for
// is defined
// by stack_domain parameter in the configuration file:
if (configuration.hasDomain(requestSipURI.getMAddrParam())) {
if (ProxyDebug.debug)
ProxyDebug.println(
"Proxy, processRequest(),"
+ " The maddr contains a domain we are responsible for,"
+ " we remove the mAddr parameter from the original"
+ " request");
// We have to strip the madr parameter:
requestSipURI.removeParameter("maddr");
// We have to strip the port parameter:
if (requestSipURI.getPort() != 5060 && requestSipURI.getPort() != -1) {
requestSipURI.setPort(5060);
}
// We have to strip the transport parameter:
requestSipURI.removeParameter("transport");
} else {
// The Maddr parameter is not a domain we have to take
// care of, we pass this check...
}
} else {
// No Maddr parameter, we pass this check...
}
} else {
// No SipURI, so no Maddr parameter, we pass this check...
}
/** *************************************************************************** */
/** *********** 3. Determine target(s) for the request (Section 16.5) ********* */
/** ************************************************************************** */
/*
* The set of targets will either be predetermined by the contents
* of the request or will be obtained from an abstract location
* service. Each target in the set is represented as a URI.
*/
Vector targetURIList = new Vector();
URI targetURI;
/*
* If the Request-URI of the request contains an maddr parameter,
* the Request-URI MUST be placed into the target set as the only
* target URI, and the proxy MUST proceed to Section 16.6.
*/
if (requestURI.isSipURI()) {
SipURI requestSipURI = (SipURI) requestURI;
if (requestSipURI.getMAddrParam() != null) {
targetURI = requestURI;
targetURIList.addElement(targetURI);
if (ProxyDebug.debug)
ProxyDebug.println(
"Proxy, processRequest(),"
+ " the only target is the Request-URI (mAddr parameter)");
// 4. Forward the request statefully:
requestForwarding.forwardRequest(
targetURIList, sipProvider, request, serverTransaction, true);
return;
}
}
/*
* If the domain of the Request-URI indicates a domain this element
* is not responsible for, the Request-URI MUST be placed into the
* target set as the only target, and the element MUST proceed to
* the task of Request Forwarding (Section 16.6).
*/
if (requestURI.isSipURI()) {
SipURI requestSipURI = (SipURI) requestURI;
if (!configuration.hasDomain(requestSipURI.getHost())) {
if (ProxyDebug.debug)
ProxyDebug.println(
"Proxy, processRequest(),"
+ " we are not responsible for the domain: Let's check if we have"
+ " a registration for this domain from another proxy");
// We have to check if another proxy did not registered
// to us, in this case we have to use the contacts provided
// by the registered proxy to create the targets:
if (registrar.hasDomainRegistered(request)) {
targetURIList = registrar.getDomainContactsURI(request);
if (targetURIList != null && !targetURIList.isEmpty()) {
if (ProxyDebug.debug) {
ProxyDebug.println(
"Proxy, processRequest(), we have"
+ " a registration for this domain from another proxy");
}
// 4. Forward the request statefully:
requestForwarding.forwardRequest(
targetURIList, sipProvider, request, serverTransaction, true);
return;
} else {
targetURIList = new Vector();
ProxyDebug.println(
"Proxy, processRequest(),"
+ " we are not responsible for the domain: the only target"
+ " URI is given by the request-URI");
targetURI = requestURI;
targetURIList.addElement(targetURI);
}
} else {
ProxyDebug.println(
"Proxy, processRequest(),"
+ " we are not responsible for the domain: the only target"
+ " URI is given by the request-URI");
targetURI = requestURI;
targetURIList.addElement(targetURI);
}
// 4. Forward the request statelessly:
requestForwarding.forwardRequest(
targetURIList, sipProvider, request, serverTransaction, false);
return;
} else {
ProxyDebug.println(
"Proxy, processRequest(),"
+ " we are responsible for the domain... Let's find the contact...");
}
}
// we use a SIP registrar:
if (request.getMethod().equals(Request.REGISTER)) {
if (ProxyDebug.debug) ProxyDebug.println("Incoming request Register");
// we call the RegisterProcessing:
registrar.processRegister(request, sipProvider, serverTransaction);
// Henrik: let the presenceserver do some processing too
if (isPresenceServer()) {
presenceServer.processRegisterRequest(sipProvider, request, serverTransaction);
}
return;
}
/*
* If we receive a subscription targeted to a user that is
* publishing its state here, send to presence server
*/
if (isPresenceServer() && (request.getMethod().equals(Request.SUBSCRIBE))) {
ProxyDebug.println("Incoming request Subscribe");
if (presenceServer.isStateAgent(request)) {
Request clonedRequest = (Request) request.clone();
presenceServer.processSubscribeRequest(sipProvider, clonedRequest, serverTransaction);
} else {
// Do we know this guy?
targetURIList = registrar.getContactsURI(request);
if (targetURIList == null) {
// If not respond that we dont know him.
ProxyDebug.println(
"Proxy: received a Subscribe request to "
+ " a user in our domain that was not found, "
+ " responded 404");
Response response = messageFactory.createResponse(Response.NOT_FOUND, request);
if (serverTransaction != null) serverTransaction.sendResponse(response);
else sipProvider.sendResponse(response);
return;
} else {
ProxyDebug.println(
"Trying to forward subscribe to "
+ targetURIList.toString()
+ "\n"
+ request.toString());
requestForwarding.forwardRequest(
targetURIList, sipProvider, request, serverTransaction, false);
}
}
return;
}
/** Received a Notify. TOADD: Check if it match active VirtualSubscriptions and update it */
if (isPresenceServer() && (request.getMethod().equals(Request.NOTIFY))) {
System.out.println("Incoming request Notify");
Response response = messageFactory.createResponse(481, request);
response.setReasonPhrase("Subscription does not exist");
if (serverTransaction != null) serverTransaction.sendResponse(response);
else sipProvider.sendResponse(response);
ProxyDebug.println("Proxy: received a Notify request. Probably wrong, responded 481");
return;
}
if (isPresenceServer() && (request.getMethod().equalsIgnoreCase("PUBLISH"))) {
System.out.println("Incoming request Publish");
ProxyDebug.println("Proxy: received a Publish request.");
Request clonedRequest = (Request) request.clone();
if (presenceServer.isStateAgent(clonedRequest)) {
ProxyDebug.println("PresenceServer.isStateAgent");
} else {
ProxyDebug.println("PresenceServer is NOT StateAgent");
}
if (presenceServer.isStateAgent(clonedRequest)) {
presenceServer.processPublishRequest(sipProvider, clonedRequest, serverTransaction);
} else {
Response response = messageFactory.createResponse(Response.NOT_FOUND, request);
if (serverTransaction != null) serverTransaction.sendResponse(response);
else sipProvider.sendResponse(response);
}
return;
}
// Forward to next hop but dont reply OK right away for the
// BYE. Bye is end-to-end not hop by hop!
if (request.getMethod().equals(Request.BYE)) {
if (serverTransaction == null) {
if (ProxyDebug.debug) ProxyDebug.println("Proxy, null server transaction for BYE");
return;
}
/* added code */
CallID call_id = (CallID) request.getHeader(CallID.CALL_ID);
String call_id_str = call_id.getCallId();
long end_time = TimeThreadController.Stop(call_id_str);
To tou = (To) request.getHeader(ToHeader.NAME);
From fromu = (From) request.getHeader(FromHeader.NAME);
String FromUser = fromu.getUserAtHostPort();
String ToUser = tou.getUserAtHostPort();
StringBuffer sb = new StringBuffer(FromUser);
int endsAt = sb.indexOf("@");
String FromUsername = sb.substring(0, endsAt);
sb = new StringBuffer(ToUser);
endsAt = sb.indexOf("@");
String ToUsername = sb.substring(0, endsAt);
BillStrategyApply bill = new BillStrategyApply(new StandardBillPolicy());
long start_time = TimeThreadController.getStartTime();
java.sql.Timestamp s = new java.sql.Timestamp(start_time);
System.out.println("START TIME POU BIKE :" + s.toString());
BigDecimal cost = bill.executeStrategy(1, 2, start_time, end_time);
ProcessBill.updateCallDB(FromUsername, ToUsername, start_time, end_time, cost);
/* end of added code */
Dialog d = serverTransaction.getDialog();
TransactionsMapping transactionsMapping = (TransactionsMapping) d.getApplicationData();
Dialog peerDialog = (Dialog) transactionsMapping.getPeerDialog(serverTransaction);
Request clonedRequest = (Request) request.clone();
FromHeader from = (FromHeader) clonedRequest.getHeader(FromHeader.NAME);
from.removeParameter("tag");
ToHeader to = (ToHeader) clonedRequest.getHeader(ToHeader.NAME);
to.removeParameter("tag");
ViaHeader via = this.getStackViaHeader();
clonedRequest.addHeader(via);
if (peerDialog.getState() != null) {
ClientTransaction newct = sipProvider.getNewClientTransaction(clonedRequest);
transactionsMapping.addMapping(serverTransaction, newct);
peerDialog.sendRequest(newct);
return;
} else {
// the peer dialog is not yet established so bail out.
// this is a client error - client is sending BYE
// before dialog establishment.
if (ProxyDebug.debug) ProxyDebug.println("Proxy, bad dialog state - BYE dropped");
return;
}
}
/*
* If the target set for the request has not been predetermined as
* described above, this implies that the element is responsible for
* the domain in the Request-URI, and the element MAY use whatever
* mechanism it desires to determine where to send the request. ...
* When accessing the location service constructed by a registrar,
* the Request-URI MUST first be canonicalized as described in
* Section 10.3 before being used as an index.
*/
if (requestURI.isSipURI()) {
SipURI requestSipURI = (SipURI) requestURI;
Iterator iterator = requestSipURI.getParameterNames();
if (ProxyDebug.debug)
ProxyDebug.println("Proxy, processRequest(), we canonicalized" + " the request-URI");
while (iterator != null && iterator.hasNext()) {
String name = (String) iterator.next();
requestSipURI.removeParameter(name);
}
}
if (registrar.hasRegistration(request)) {
targetURIList = registrar.getContactsURI(request);
// We fork only INVITE
if (targetURIList != null
&& targetURIList.size() > 1
&& !request.getMethod().equals("INVITE")) {
if (ProxyDebug.debug)
ProxyDebug.println(
"Proxy, processRequest(), the request "
+ " to fork is not an INVITE, so we will process"
+ " it with the first target as the only target.");
targetURI = (URI) targetURIList.firstElement();
targetURIList = new Vector();
targetURIList.addElement(targetURI);
// 4. Forward the request statefully to the target:
requestForwarding.forwardRequest(
targetURIList, sipProvider, request, serverTransaction, true);
return;
}
if (targetURIList != null && !targetURIList.isEmpty()) {
if (ProxyDebug.debug)
ProxyDebug.println(
"Proxy, processRequest(), the target set"
+ " is the set of the contacts URI from the "
+ " location service");
To to = (To) request.getHeader(ToHeader.NAME);
From from = (From) request.getHeader(FromHeader.NAME);
String FromUser = from.getUserAtHostPort();
String ToUser = to.getUserAtHostPort();
StringBuffer sb = new StringBuffer(FromUser);
int endsAt = sb.indexOf("@");
String FromUsername = sb.substring(0, endsAt);
sb = new StringBuffer(ToUser);
endsAt = sb.indexOf("@");
String ToUsername = sb.substring(0, endsAt);
if (!block.CheckBlock(FromUsername, ToUsername)) {
Response response =
messageFactory.createResponse(Response.TEMPORARILY_UNAVAILABLE, request);
if (serverTransaction != null) serverTransaction.sendResponse(response);
else sipProvider.sendResponse(response);
return;
}
/*
* // ECE355 Changes - Aug. 2005. // Call registry service,
* get response (uri - wsdl). // if response is not null
* then // do our staff // send to caller decline message by
* building a decline msg // and attach wsdl uri in the
* message body // else .. continue the logic below ...
*
*
* // Lets assume that wsdl_string contains the message with
* all the // service names and uri's for each service in
* the required format
*
* // Query for web services for the receiver of INVITE //
* Use WebServices class to get services for org
*
* String messageBody = "" ; WebServicesQuery wsq = null ;
* wsq = WebServicesQuery.getInstance();
*
* // Get services info for receiver // A receiver is
* represented as an organization in the Service Registry
*
* To to = (To)request.getHeader(ToHeader.NAME); String
* toAddress = to.getUserAtHostPort();
*
* // Remove all characters after the @ sign from To address
* StringBuffer sb = new StringBuffer(toAddress); int endsAt
* = sb.indexOf("@"); String orgNamePattern =
* sb.substring(0, endsAt);
*
*
* Collection serviceInfoColl =
* wsq.findServicesForOrg(orgNamePattern);
*
* // If services are found for this receiver (Org), build
* DECLINE message and // send to client if (serviceInfoColl
* != null) { if (serviceInfoColl.size()!= 0 ){
* System.out.println("Found " + serviceInfoColl.size() +
* " services for o rg " + orgNamePattern) ; // Build
* message body for DECLINE message with Service Info
* messageBody = serviceInfoColl.size()+ " -- " ;
*
* Iterator servIter = serviceInfoColl.iterator(); while
* (servIter.hasNext()) { ServiceInfo servInfo =
* (ServiceInfo)servIter.next(); messageBody = messageBody +
* servInfo.getDescription()+ " " + servInfo.getWsdluri() +
* " " + servInfo.getEndPoint()+ " -- ";
*
*
* System.out.println("Name: " + servInfo.getName()) ;
* System.out.println("Providing Organization: " +
* servInfo.getProvidingOrganization()) ;
* System.out.println("Description: " +
* servInfo.getDescription()) ;
* System.out.println("Service End Point " +
* servInfo.getEndPoint()) ; System.out.println("wsdl wri "
* + servInfo.getWsdluri()) ;
* System.out.println("---------------------------------");
*
*
*
* }
*
* System.out.println("ServiceInfo - Message Body " +
* messageBody) ;
*
* // Build and send DECLINE message with web service info
*
* ContentTypeHeader contentTypeHeader = new ContentType(
* "text", "plain");
*
* Response response = messageFactory.createResponse(
* Response.DECLINE, request, contentTypeHeader,
* messageBody);
*
*
*
* if (serverTransaction != null)
* serverTransaction.sendResponse(response); else
* sipProvider.sendResponse(response); return; } else
* System.out.println("There are no services for org " +
* orgNamePattern) ;
*
* }
*
* // End of ECE355 change
*/
// 4. Forward the request statefully to each target Section
// 16.6.:
requestForwarding.forwardRequest(
targetURIList, sipProvider, request, serverTransaction, true);
return;
} else {
// Let's continue and try the default hop.
}
}
// The registrar cannot help to decide the targets, so let's use
// our router: the default hop!
ProxyDebug.println(
"Proxy, processRequest(), the registrar cannot help"
+ " to decide the targets, so let's use our router: the default hop");
Router router = sipStack.getRouter();
if (router != null) {
ProxyHop hop = (ProxyHop) router.getOutboundProxy();
if (hop != null) {
if (ProxyDebug.debug)
ProxyDebug.println(
"Proxy, processRequest(), the target set" + " is the defaut hop: outbound proxy");
// Bug fix contributed by Joe Provino
String user = null;
if (requestURI.isSipURI()) {
SipURI requestSipURI = (SipURI) requestURI;
user = requestSipURI.getUser();
}
SipURI hopURI = addressFactory.createSipURI(user, hop.getHost());
hopURI.setTransportParam(hop.getTransport());
hopURI.setPort(hop.getPort());
targetURI = hopURI;
targetURIList.addElement(targetURI);
// 4. Forward the request statelessly to each target Section
// 16.6.:
requestForwarding.forwardRequest(
targetURIList, sipProvider, request, serverTransaction, false);
return;
}
}
/*
* If the target set remains empty after applying all of the above,
* the proxy MUST return an error response, which SHOULD be the 480
* (Temporarily Unavailable) response.
*/
Response response = messageFactory.createResponse(Response.TEMPORARILY_UNAVAILABLE, request);
if (serverTransaction != null) serverTransaction.sendResponse(response);
else sipProvider.sendResponse(response);
if (ProxyDebug.debug)
ProxyDebug.println(
"Proxy, processRequest(), unable to set "
+ " the targets, 480 (Temporarily Unavailable) replied:\n"
+ response.toString());
} catch (Exception ex) {
try {
if (ProxyDebug.debug) {
ProxyDebug.println("Proxy, processRequest(), internal error, " + "exception raised:");
ProxyDebug.logException(ex);
ex.printStackTrace();
}
// This is an internal error:
// Let's return a 500 SERVER_INTERNAL_ERROR
Response response = messageFactory.createResponse(Response.SERVER_INTERNAL_ERROR, request);
if (serverTransaction != null) serverTransaction.sendResponse(response);
else sipProvider.sendResponse(response);
if (ProxyDebug.debug)
ProxyDebug.println(
"Proxy, processRequest(),"
+ " 500 SERVER_INTERNAL_ERROR replied:\n"
+ response.toString());
} catch (Exception e) {
e.printStackTrace();
}
}
}