/**
* Checks for certain params existence in the value, and replace them with real values obtained
* from <tt>request</tt>.
*
* @param value the value of the header param
* @param request the request we are processing
* @return the value with replaced params
*/
private static String processParams(String value, Request request) {
if (value.indexOf("${from.address}") != -1) {
FromHeader fromHeader = (FromHeader) request.getHeader(FromHeader.NAME);
if (fromHeader != null) {
value = value.replace("${from.address}", fromHeader.getAddress().getURI().toString());
}
}
if (value.indexOf("${from.userID}") != -1) {
FromHeader fromHeader = (FromHeader) request.getHeader(FromHeader.NAME);
if (fromHeader != null) {
URI fromURI = fromHeader.getAddress().getURI();
String fromAddr = fromURI.toString();
// strips sip: or sips:
if (fromURI.isSipURI()) {
fromAddr = fromAddr.replaceFirst(fromURI.getScheme() + ":", "");
}
// take the userID part
int index = fromAddr.indexOf('@');
if (index > -1) fromAddr = fromAddr.substring(0, index);
value = value.replace("${from.userID}", fromAddr);
}
}
if (value.indexOf("${to.address}") != -1) {
ToHeader toHeader = (ToHeader) request.getHeader(ToHeader.NAME);
if (toHeader != null) {
value = value.replace("${to.address}", toHeader.getAddress().getURI().toString());
}
}
if (value.indexOf("${to.userID}") != -1) {
ToHeader toHeader = (ToHeader) request.getHeader(ToHeader.NAME);
if (toHeader != null) {
URI toURI = toHeader.getAddress().getURI();
String toAddr = toURI.toString();
// strips sip: or sips:
if (toURI.isSipURI()) {
toAddr = toAddr.replaceFirst(toURI.getScheme() + ":", "");
}
// take the userID part
int index = toAddr.indexOf('@');
if (index > -1) toAddr = toAddr.substring(0, index);
value = value.replace("${to.userID}", toAddr);
}
}
return value;
}
/**
* Check the response and answer true if authentication succeeds. We are making simplifying
* assumptions here and assuming that the password is available to us for computation of the MD5
* hash. We also dont cache authentications so that the user has to authenticate on each
* registration.
*
* @param user is the username
* @param authHeader is the Authroization header from the SIP request.
* @param requestLine is the SIP Request line from the SIP request.
* @exception SIPAuthenticationException is thrown when authentication fails or message is bad
*/
public boolean doAuthenticate(String user, AuthorizationHeader authHeader, Request request) {
String realm = authHeader.getRealm();
String username = authHeader.getUsername();
URI requestURI = request.getRequestURI();
if (username == null) {
ProxyDebug.println(
"DEBUG, DigestAuthenticateMethod, doAuthenticate(): "
+ "WARNING: userName parameter not set in the header received!!!");
username = user;
}
if (realm == null) {
ProxyDebug.println(
"DEBUG, DigestAuthenticateMethod, doAuthenticate(): "
+ "WARNING: realm parameter not set in the header received!!! WE use the default one");
realm = DEFAULT_REALM;
}
ProxyDebug.println(
"DEBUG, DigestAuthenticateMethod, doAuthenticate(): "
+ "Trying to authenticate user: "******" for "
+ " the realm: "
+ realm);
String password = (String) passwordTable.get(username + "@" + realm);
if (password == null) {
ProxyDebug.println(
"DEBUG, DigestAuthenticateMethod, doAuthenticate(): "
+ "ERROR: password not found for the user: "******"@"
+ realm);
return false;
}
String nonce = authHeader.getNonce();
// If there is a URI parameter in the Authorization header,
// then use it.
URI uri = authHeader.getURI();
// There must be a URI parameter in the authorization header.
if (uri == null) {
ProxyDebug.println(
"DEBUG, DigestAuthenticateMethod, doAuthenticate(): "
+ "ERROR: uri paramater not set in the header received!");
return false;
}
ProxyDebug.println(
"DEBUG, DigestAuthenticationMethod, doAuthenticate(), username:"******"!");
ProxyDebug.println("DEBUG, DigestAuthenticationMethod, doAuthenticate(), realm:" + realm + "!");
ProxyDebug.println(
"DEBUG, DigestAuthenticationMethod, doAuthenticate(), password:"******"!");
ProxyDebug.println("DEBUG, DigestAuthenticationMethod, doAuthenticate(), uri:" + uri + "!");
ProxyDebug.println("DEBUG, DigestAuthenticationMethod, doAuthenticate(), nonce:" + nonce + "!");
ProxyDebug.println(
"DEBUG, DigestAuthenticationMethod, doAuthenticate(), method:" + request.getMethod() + "!");
String A1 = username + ":" + realm + ":" + password;
String A2 = request.getMethod().toUpperCase() + ":" + uri.toString();
byte mdbytes[] = messageDigest.digest(A1.getBytes());
String HA1 = ProxyUtilities.toHexString(mdbytes);
ProxyDebug.println("DEBUG, DigestAuthenticationMethod, doAuthenticate(), HA1:" + HA1 + "!");
mdbytes = messageDigest.digest(A2.getBytes());
String HA2 = ProxyUtilities.toHexString(mdbytes);
ProxyDebug.println("DEBUG, DigestAuthenticationMethod, doAuthenticate(), HA2:" + HA2 + "!");
String cnonce = authHeader.getCNonce();
String KD = HA1 + ":" + nonce;
if (cnonce != null) {
KD += ":" + cnonce;
}
KD += ":" + HA2;
mdbytes = messageDigest.digest(KD.getBytes());
String mdString = ProxyUtilities.toHexString(mdbytes);
String response = authHeader.getResponse();
ProxyDebug.println(
"DEBUG, DigestAuthenticateMethod, doAuthenticate(): "
+ "we have to compare his response: "
+ response
+ " with our computed"
+ " response: "
+ mdString);
int res = (mdString.compareTo(response));
if (res == 0) {
ProxyDebug.println(
"DEBUG, DigestAuthenticateMethod, doAuthenticate(): " + "User authenticated...");
} else {
ProxyDebug.println(
"DEBUG, DigestAuthenticateMethod, doAuthenticate(): " + "User not authenticated...");
}
return res == 0;
}
/**
* Find the <tt>ProtocolProviderServiceSipImpl</tt> (one of our "candidate recipient" listeners)
* which this <tt>request</tt> should be dispatched to. The strategy is to look first at the
* request URI, and then at the To field to find a matching candidate for dispatching. Note that
* this method takes a <tt>Request</tt> as param, and not a <tt>ServerTransaction</tt>, because
* sometimes <tt>RequestEvent</tt>s have no associated <tt>ServerTransaction</tt>.
*
* @param request the <tt>Request</tt> to find a recipient for.
* @return a suitable <tt>ProtocolProviderServiceSipImpl</tt>.
*/
private ProtocolProviderServiceSipImpl findTargetFor(Request request) {
if (request == null) {
logger.error("request shouldn't be null.");
return null;
}
List<ProtocolProviderServiceSipImpl> currentListenersCopy =
new ArrayList<ProtocolProviderServiceSipImpl>(this.getSipListeners());
// Let's first narrow down candidate choice by comparing
// addresses and ports (no point in delivering to a provider with a
// non matching IP address since they will reject it anyway).
filterByAddress(currentListenersCopy, request);
if (currentListenersCopy.size() == 0) {
logger.error("no listeners");
return null;
}
URI requestURI = request.getRequestURI();
if (requestURI.isSipURI()) {
String requestUser = ((SipURI) requestURI).getUser();
List<ProtocolProviderServiceSipImpl> candidates =
new ArrayList<ProtocolProviderServiceSipImpl>();
// check if the Request-URI username is
// one of ours usernames
for (ProtocolProviderServiceSipImpl listener : currentListenersCopy) {
String ourUserID = listener.getAccountID().getUserID();
// logger.trace(ourUserID + " *** " + requestUser);
if (ourUserID.equals(requestUser)) {
if (logger.isTraceEnabled())
logger.trace("suitable candidate found: " + listener.getAccountID());
candidates.add(listener);
}
}
// the perfect match
// every other case is approximation
if (candidates.size() == 1) {
ProtocolProviderServiceSipImpl perfectMatch = candidates.get(0);
if (logger.isTraceEnabled())
logger.trace("Will dispatch to \"" + perfectMatch.getAccountID() + "\"");
return perfectMatch;
}
// more than one account match
if (candidates.size() > 1) {
// check if a custom param exists in the contact
// address (set for registrar accounts)
for (ProtocolProviderServiceSipImpl candidate : candidates) {
String hostValue =
((SipURI) requestURI).getParameter(SipStackSharing.CONTACT_ADDRESS_CUSTOM_PARAM_NAME);
if (hostValue == null) continue;
if (hostValue.equals(candidate.getContactAddressCustomParamValue())) {
if (logger.isTraceEnabled())
logger.trace(
"Will dispatch to \""
+ candidate.getAccountID()
+ "\" because "
+ "\" the custom param was set");
return candidate;
}
}
// Past this point, our guess is not reliable. We try to find
// the "least worst" match based on parameters like the To field
// check if the To header field host part
// matches any of our SIP hosts
for (ProtocolProviderServiceSipImpl candidate : candidates) {
URI fromURI = ((FromHeader) request.getHeader(FromHeader.NAME)).getAddress().getURI();
if (fromURI.isSipURI() == false) continue;
SipURI ourURI = (SipURI) candidate.getOurSipAddress((SipURI) fromURI).getURI();
String ourHost = ourURI.getHost();
URI toURI = ((ToHeader) request.getHeader(ToHeader.NAME)).getAddress().getURI();
if (toURI.isSipURI() == false) continue;
String toHost = ((SipURI) toURI).getHost();
// logger.trace(toHost + "***" + ourHost);
if (toHost.equals(ourHost)) {
if (logger.isTraceEnabled())
logger.trace(
"Will dispatch to \""
+ candidate.getAccountID()
+ "\" because "
+ "host in the To: is the same as in our AOR");
return candidate;
}
}
// fallback on the first candidate
ProtocolProviderServiceSipImpl target = candidates.iterator().next();
logger.info(
"Will randomly dispatch to \""
+ target.getAccountID()
+ "\" because there is ambiguity on the username from"
+ " the Request-URI");
if (logger.isTraceEnabled()) logger.trace("\n" + request);
return target;
}
// fallback on any account
ProtocolProviderServiceSipImpl target = currentListenersCopy.iterator().next();
if (logger.isDebugEnabled())
logger.debug(
"Will randomly dispatch to \""
+ target.getAccountID()
+ "\" because the username in the Request-URI "
+ "is unknown or empty");
if (logger.isTraceEnabled()) logger.trace("\n" + request);
return target;
} else {
logger.error("Request-URI is not a SIP URI, dropping");
}
return null;
}
/**
* Return addresses for default proxy to forward the request to. The list is organized in the
* following priority. If the requestURI refers directly to a host, the host and port information
* are extracted from it and made the next hop on the list. If the default route has been
* specified, then it is used to construct the next element of the list. <code>
* RouteHeader firstRoute = (RouteHeader) req.getHeader( RouteHeader.NAME );
* if (firstRoute!=null) {
* URI uri = firstRoute.getAddress().getURI();
* if (uri.isSIPUri()) {
* SipURI nextHop = (SipURI) uri;
* if ( nextHop.hasLrParam() ) {
* // OK, use it
* } else {
* nextHop = fixStrictRouting( req ); <--- Here, make the modifications as per RFC3261
* }
* } else {
* // error: non-SIP URI not allowed in Route headers
* throw new SipException( "Request has Route header with non-SIP URI" );
* }
* } else if (outboundProxy!=null) {
* // use outbound proxy for nextHop
* } else if ( req.getRequestURI().isSipURI() ) {
* // use request URI for nextHop
* }
*
* </code>
*
* @param request is the sip request to route.
*/
public Hop getNextHop(Request request) throws SipException {
SIPRequest sipRequest = (SIPRequest) request;
RequestLine requestLine = sipRequest.getRequestLine();
if (requestLine == null) {
return defaultRoute;
}
javax.sip.address.URI requestURI = requestLine.getUri();
if (requestURI == null) throw new IllegalArgumentException("Bad message: Null requestURI");
RouteList routes = sipRequest.getRouteHeaders();
/*
* In case the topmost Route header contains no 'lr' parameter (which
* means the next hop is a strict router), the implementation will
* perform 'Route Information Postprocessing' as described in RFC3261
* section 16.6 step 6 (also known as "Route header popping"). That is,
* the following modifications will be made to the request:
*
* The implementation places the Request-URI into the Route header field
* as the last value.
*
* The implementation then places the first Route header field value
* into the Request-URI and removes that value from the Route header
* field.
*
* Subsequently, the request URI will be used as next hop target
*/
if (routes != null) {
// to send the request through a specified hop the application is
// supposed to prepend the appropriate Route header which.
Route route = (Route) routes.getFirst();
URI uri = route.getAddress().getURI();
if (uri.isSipURI()) {
SipURI sipUri = (SipURI) uri;
if (!sipUri.hasLrParam()) {
fixStrictRouting(sipRequest);
if (sipStack.isLoggingEnabled())
sipStack.getStackLogger().logDebug("Route post processing fixed strict routing");
}
Hop hop = createHop(sipUri, request);
if (sipStack.isLoggingEnabled())
sipStack.getStackLogger().logDebug("NextHop based on Route:" + hop);
return hop;
} else {
throw new SipException("First Route not a SIP URI");
}
} else if (requestURI.isSipURI() && ((SipURI) requestURI).getMAddrParam() != null) {
Hop hop = createHop((SipURI) requestURI, request);
if (sipStack.isLoggingEnabled())
sipStack
.getStackLogger()
.logDebug("Using request URI maddr to route the request = " + hop.toString());
// JvB: don't remove it!
// ((SipURI) requestURI).removeParameter("maddr");
return hop;
} else if (defaultRoute != null) {
if (sipStack.isLoggingEnabled())
sipStack
.getStackLogger()
.logDebug("Using outbound proxy to route the request = " + defaultRoute.toString());
return defaultRoute;
} else if (requestURI.isSipURI()) {
Hop hop = createHop((SipURI) requestURI, request);
if (hop != null && sipStack.isLoggingEnabled())
sipStack.getStackLogger().logDebug("Used request-URI for nextHop = " + hop.toString());
else if (sipStack.isLoggingEnabled()) {
sipStack.getStackLogger().logDebug("returning null hop -- loop detected");
}
return hop;
} else {
// The internal router should never be consulted for non-sip URIs.
InternalErrorHandler.handleException(
"Unexpected non-sip URI", this.sipStack.getStackLogger());
return null;
}
}
/** 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();
}
}
}
/*
* (non-Javadoc)
*
* @see gov.nist.javax.sip.clientauthutils.AuthenticationHelper#handleChallenge(javax.sip.message.Response,
* javax.sip.ClientTransaction, javax.sip.SipProvider)
*/
public ClientTransaction handleChallenge(
Response challenge,
ClientTransaction challengedTransaction,
SipProvider transactionCreator,
int cacheTime)
throws SipException, NullPointerException {
try {
if (sipStack.isLoggingEnabled()) {
sipStack.getStackLogger().logDebug("handleChallenge: " + challenge);
}
SIPRequest challengedRequest = ((SIPRequest) challengedTransaction.getRequest());
Request reoriginatedRequest = null;
/*
* If the challenged request is part of a Dialog and the
* Dialog is confirmed the re-originated request should be
* generated as an in-Dialog request.
*/
if (challengedRequest.getToTag() != null
|| challengedTransaction.getDialog() == null
|| challengedTransaction.getDialog().getState() != DialogState.CONFIRMED) {
reoriginatedRequest = (Request) challengedRequest.clone();
} else {
/*
* Re-originate the request by consulting the dialog. In particular
* the route set could change between the original request and the
* in-dialog challenge.
*/
reoriginatedRequest =
challengedTransaction.getDialog().createRequest(challengedRequest.getMethod());
Iterator<String> headerNames = challengedRequest.getHeaderNames();
while (headerNames.hasNext()) {
String headerName = headerNames.next();
if (reoriginatedRequest.getHeader(headerName) != null) {
ListIterator<Header> iterator = reoriginatedRequest.getHeaders(headerName);
while (iterator.hasNext()) {
reoriginatedRequest.addHeader(iterator.next());
}
}
}
}
// remove the branch id so that we could use the request in a new
// transaction
removeBranchID(reoriginatedRequest);
if (challenge == null || reoriginatedRequest == null) {
throw new NullPointerException("A null argument was passed to handle challenge.");
}
ListIterator authHeaders = null;
if (challenge.getStatusCode() == Response.UNAUTHORIZED) {
authHeaders = challenge.getHeaders(WWWAuthenticateHeader.NAME);
} else if (challenge.getStatusCode() == Response.PROXY_AUTHENTICATION_REQUIRED) {
authHeaders = challenge.getHeaders(ProxyAuthenticateHeader.NAME);
} else {
throw new IllegalArgumentException("Unexpected status code ");
}
if (authHeaders == null) {
throw new IllegalArgumentException(
"Could not find WWWAuthenticate or ProxyAuthenticate headers");
}
// Remove all authorization headers from the request (we'll re-add them
// from cache)
reoriginatedRequest.removeHeader(AuthorizationHeader.NAME);
reoriginatedRequest.removeHeader(ProxyAuthorizationHeader.NAME);
// rfc 3261 says that the cseq header should be augmented for the new
// request. do it here so that the new dialog (created together with
// the new client transaction) takes it into account.
// Bug report - Fredrik Wickstrom
CSeqHeader cSeq = (CSeqHeader) reoriginatedRequest.getHeader((CSeqHeader.NAME));
try {
cSeq.setSeqNumber(cSeq.getSeqNumber() + 1l);
} catch (InvalidArgumentException ex) {
throw new SipException("Invalid CSeq -- could not increment : " + cSeq.getSeqNumber());
}
/* Resolve this to the next hop based on the previous lookup. If we are not using
* lose routing (RFC2543) then just attach hop as a maddr param.
*/
if (challengedRequest.getRouteHeaders() == null) {
Hop hop = ((SIPClientTransaction) challengedTransaction).getNextHop();
SipURI sipUri = (SipURI) reoriginatedRequest.getRequestURI();
sipUri.setMAddrParam(hop.getHost());
if (hop.getPort() != -1) sipUri.setPort(hop.getPort());
}
ClientTransaction retryTran = transactionCreator.getNewClientTransaction(reoriginatedRequest);
WWWAuthenticateHeader authHeader = null;
SipURI requestUri = (SipURI) challengedTransaction.getRequest().getRequestURI();
while (authHeaders.hasNext()) {
authHeader = (WWWAuthenticateHeader) authHeaders.next();
String realm = authHeader.getRealm();
AuthorizationHeader authorization = null;
String sipDomain;
if (this.accountManager instanceof SecureAccountManager) {
UserCredentialHash credHash =
((SecureAccountManager) this.accountManager)
.getCredentialHash(challengedTransaction, realm);
URI uri = reoriginatedRequest.getRequestURI();
sipDomain = credHash.getSipDomain();
authorization =
this.getAuthorization(
reoriginatedRequest.getMethod(),
uri.toString(),
(reoriginatedRequest.getContent() == null)
? ""
: new String(reoriginatedRequest.getRawContent()),
authHeader,
credHash);
} else {
UserCredentials userCreds =
((AccountManager) this.accountManager).getCredentials(challengedTransaction, realm);
sipDomain = userCreds.getSipDomain();
if (userCreds == null)
throw new SipException("Cannot find user creds for the given user name and realm");
// we haven't yet authenticated this realm since we were
// started.
authorization =
this.getAuthorization(
reoriginatedRequest.getMethod(),
reoriginatedRequest.getRequestURI().toString(),
(reoriginatedRequest.getContent() == null)
? ""
: new String(reoriginatedRequest.getRawContent()),
authHeader,
userCreds);
}
sipStack
.getStackLogger()
.logDebug("Created authorization header: " + authorization.toString());
if (cacheTime != 0)
cachedCredentials.cacheAuthorizationHeader(sipDomain, authorization, cacheTime);
reoriginatedRequest.addHeader(authorization);
}
if (sipStack.isLoggingEnabled()) {
sipStack.getStackLogger().logDebug("Returning authorization transaction." + retryTran);
}
return retryTran;
} catch (SipException ex) {
throw ex;
} catch (Exception ex) {
sipStack.getStackLogger().logError("Unexpected exception ", ex);
throw new SipException("Unexpected exception ", ex);
}
}
