I am developing a SIP client using JAIN SIP library in eclipse environment.
I am having trouble getting authorization. I have also implemented the MD5 challenge and added Authorization to the second Register function.
The authorization credentials are also correct as I checked them with available SIP application. I was able to Register and make calls with it.
This is the code for initialization and registration
String username = "username";
String server = "10.99.00.00";
String password = "password";
String realm = null ;
private String nonce = null;
// Objects used to communicate to the JAIN SIP API.
SipFactory sipFactory; // Used to access the SIP API.
SipStack sipStack; // The SIP stack.
SipProvider sipProvider; // Used to send SIP messages.
MessageFactory messageFactory; // Used to create SIP message factory.
HeaderFactory headerFactory; // Used to create SIP headers.
AddressFactory addressFactory; // Used to create SIP URIs.
ListeningPoint listeningPoint; // SIP listening IP address/port.
Properties properties; // Other properties.
ClientTransaction inviteTid;
Request request;
Response response;
// Objects keeping local configuration.
String proxy = null;
String sipIP="10.99.00.00";
String localIP= null;
// The local IP address.
int sipport = 5060; // The local port.
int rport = 52216;
String protocol = "UDP"; // The local protocol (UDP).
int tag = (new Random()).nextInt(); // The local tag.
Address contactAddress; // The contact address.
ContactHeader contactHeader; // The contact header.
private Dialog dialog;
private Logger logger;
private String current_process;
public test() throws NoSuchAlgorithmException, ParseException{
init();
Response response = null;
register(response);
}
public void init() {
try {
// Get the local IP address.
localIP = InetAddress.getLocalHost().getHostAddress();
// Create the SIP factory and set the path name.
sipFactory = SipFactory.getInstance();
sipFactory.setPathName("gov.nist");
// Create and set the SIP stack properties.
properties = new Properties();
properties.setProperty("javax.sip.STACK_NAME", "stack");
properties.setProperty("gov.nist.javax.sip.TRACE_LEVEL", "32");
if(proxy != null) {
properties.setProperty("javax.sip.OUTBOUND_PROXY", sipIP + ':' + sipport + '/' + protocol);
}
properties.setProperty("gov.nist.javax.sip.LOG_MESSAGE_CONTENT", "true");
properties.setProperty("gov.nist.javax.sip.DEBUG_LOG", "mss-jsip-debuglog.txt");
properties.setProperty("gov.nist.javax.sip.SERVER_LOG","mss-jsip-messages.xml");
// Create the SIP stack.
sipStack = sipFactory.createSipStack(this.properties);
// Create the SIP message factory.
messageFactory = sipFactory.createMessageFactory();
// Create the SIP header factory.
headerFactory = sipFactory.createHeaderFactory();
// Create the SIP address factory.
addressFactory = sipFactory.createAddressFactory();
// Create the SIP listening point and bind it to the local IP
// address, port and protocol.
listeningPoint = sipStack.createListeningPoint(localIP, rport, protocol);
// Create the SIP provider.
sipProvider = sipStack.createSipProvider(listeningPoint);
// Add our application as a SIP listener.
sipProvider.addSipListener(this);
// Display the local IP address and port in the text area.
} catch (Exception e) {
e.printStackTrace();
// If an error occurs, display an error message box and exit.
System.exit(-1);
}
}
int cseq;
public void register(Response response) {
try {
cseq++;
current_process = cseq + "REGISTER";
ArrayList viaHeaders = new ArrayList();
ViaHeader viaHeader = headerFactory.createViaHeader(localIP,
rport, "udp", null);
viaHeader.setRPort();
viaHeaders.add(viaHeader);
// The "Max-Forwards" header.
MaxForwardsHeader maxForwardsHeader = headerFactory.createMaxForwardsHeader(70);
// The "Call-Id" header.
CallIdHeader callIdHeader = sipProvider.getNewCallId();
// The "CSeq" header.
@SuppressWarnings("deprecation")
CSeqHeader cSeqHeader = headerFactory.createCSeqHeader(1L,Request.REGISTER);
Address fromAddress = addressFactory.createAddress("sip:"
+ "username" + '@' + server);
FromHeader fromHeader = headerFactory.createFromHeader(
fromAddress, String.valueOf(this.tag));
// The "To" header.
ToHeader toHeader = headerFactory.createToHeader(fromAddress , null);
// Create the contact address used for all SIP messages.
contactAddress = addressFactory.createAddress("sip:" + username + "@"+ localIP +":"+rport+ ";"+ "transport=UDP");
// Create the contact header used for all SIP messages.
contactHeader = headerFactory.createContactHeader(contactAddress);
URI requestURI = addressFactory.createURI("sip:" + server);
request = messageFactory.createRequest(requestURI, Request.REGISTER,callIdHeader, cSeqHeader, fromHeader, toHeader, viaHeaders, maxForwardsHeader);
request.addHeader(contactHeader);
// System.out.println(request.toString());
if (response != null) {
AuthorizationHeader authHeader = makeAuthHeader(headerFactory, response, request, username, password);
request.addHeader(authHeader);
}
inviteTid = sipProvider.getNewClientTransaction(request);
// send the request out.
inviteTid.sendRequest();
// dialog = inviteTid.getDialog();
System.out.println(request.toString());
// Send the request statelessly through the SIP provider.
// this.sipProvider.sendRequest(request);
// Display the message in the text area.
// logger.debug("Request sent:\n" + request.toString() + "\n\n");
} catch (Exception e) {
// If an error occurred, display the error.
e.printStackTrace();
// logger.debug("Request sent failed: " + e.getMessage() + "\n");
}
}
private AuthorizationHeader makeAuthHeader(HeaderFactory headerFactory2, Response response, Request request, String username2,
String password2) throws ParseException {
// TODO Auto-generated method stub
// Authenticate header with challenge we need to reply to
WWWAuthenticateHeader ah_c = (WWWAuthenticateHeader)response.getHeader(WWWAuthenticateHeader.NAME);
// Authorization header we will build with response to challenge
AuthorizationHeader ah_r = headerFactory.createAuthorizationHeader(ah_c.getScheme());
// assemble data we need to create response string
URI request_uri = request.getRequestURI();
String request_method = request.getMethod();
String nonce = ah_c.getNonce();
String algrm = ah_c.getAlgorithm();
String realm = ah_c.getRealm();
MessageDigest mdigest;
try {
mdigest = MessageDigest.getInstance(algrm);
// A1
String A1 = username + ":" + realm + ":" + password;
String HA1 = toHexString(mdigest.digest(A1.getBytes()));
// A2
String A2 = request_method.toUpperCase() + ":" + request_uri ;
String HA2 = toHexString(mdigest.digest(A2.getBytes()));
// KD
String KD = HA1 + ":" + nonce + ":" + HA2;
String responsenew = toHexString(mdigest.digest(KD.getBytes()));
ah_r.setUsername(username);
ah_r.setRealm(realm);
ah_r.setNonce(nonce);
ah_r.setURI(request_uri);
ah_r.setAlgorithm(algrm);
ah_r.setResponse(responsenew);
} catch (NoSuchAlgorithmException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return ah_r;
}
This is the Request I send and the Response I get.
REGISTER sip:10.99.00.00 SIP/2.0
Via: SIP/2.0/UDP 10.99.00.00:52016;rport;branch=z9hG4bK- 363430-38c329167b2d9108d20c996fec776b29
Max-Forwards: 70
To: <sip:tusername7@10.99.00.00>
From: <sip:username@10.99.00.00>;tag=421569181
Call-ID: 37cd8463e628a6960f62267027cf0720@10.99.00.00
CSeq: 1 REGISTER
Contact: <sip:username@10.99.00.00:52016;transport=UDP>
Content-Length: 0
SIP/2.0 401 Unauthorized
Via: SIP/2.0/UDP 10.99.00.00:52016;branch=z9hG4bK- 363430-38c329167b2d9108d20c996fec776b29;received=10.99.00.00;rport=52016
From: <sip:username@10.99.00.00>;tag=421569181
To: <sip:username@10.99.00.00>;tag=as64c39fdc
Call-ID: 37cd8463e628a6960f62267027cf0720@10.99.00.00
CSeq: 1 REGISTER
Server: Asterisk PBX 10.5.1
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,REFER,SUBSCRIBE,NOTIFY,INFO,PUBLISH
Supported: replaces,timer
WWW-Authenticate: Digest algorithm=MD5,realm="xyz.com",nonce="13250a39"
Content-Length: 0
REGISTER sip:10.99.00.00 SIP/2.0
Via: SIP/2.0/UDP 10.99.00.00:52016;rport;branch=z9hG4bK- 363430-19fd7f5d12dc78762617b26d61129919
Max-Forwards: 70
To: <sip:username@10.99.00.00>
From: <sip:username@10.99.00.00>;tag=421569181
Call-ID: 68bd42d26ac8f9f90729927434eb5ad3@10.99.70.106
CSeq: 2 REGISTER
Contact: <sip:username@10.99.00.00:52016;transport=UDP>
Authorization: Digest username="username",realm="xyz.com",nonce="13250a39",uri="sip:10.99.00.00",algorithm=MD5,response="f525cda4442d7388e6ea4a737e46b639"
Content-Length: 0
SIP/2.0 401 Unauthorized
Via: SIP/2.0/UDP 10.99.00.00:52016;branch=z9hG4bK- 363430-19fd7f5d12dc78762617b26d61129919;received=10.99.00.00;rport=52016
From: <sip:username@10.99.00.00>;tag=421569181
To: <sip:username@10.99.00.00>;tag=as3b3b0796
Call-ID: 68bd42d26ac8f9f90729927434eb5ad3@10.99.00.00
CSeq: 2 REGISTER
Server: Asterisk PBX 10.5.1
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,REFER,SUBSCRIBE,NOTIFY,INFO,PUBLISH
Supported: replaces,timer
WWW-Authenticate: Digest algorithm=MD5,realm="xyz.com",nonce="22cbe904"
Content-Length: 0
And when I used A SIP application with same credentials I got this request and response
2015-04-22 11:55:42,794 SENT to 10.99.00.00/5060 [AWT-EventQueue-0]
REGISTER sip:10.99.00.00 SIP/2.0
Via: SIP/2.0/UDP 10.99.00.00:52016;rport;branch=z9hG4bKcABnbdE6G
Max-Forwards: 70
To: <sip:username@10.99.00.00>
From: <sip:username@10.99.00.00>;tag=vGbh8M9A
Call-ID: mCbF4794-1429696542758@10.99.00.00
CSeq: 1 REGISTER
Contact: <sip:username@10.99.00.00:52016;transport=UDP>
2015-04-22 11:55:42,795 RECEIVED from 10.99.00.00/5060 [TransportManager 0]
SIP/2.0 401 Unauthorized
Via: SIP/2.0/UDP 10.99.00.00:52016;branch=z9hG4bKcABnbdE6G; received=10.99.00.00;rport=52016
From: <sip:username@10.99.00.00>;tag=vGbh8M9A
To: <sip:username@10.99.00.00>;tag=as7c9471aa
Call-ID: mCbF4794-1429696542758@10.99.00.00
CSeq: 1 REGISTER
Server: Asterisk PBX 10.5.1
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH
Supported: replaces, timer
WWW-Authenticate: Digest algorithm=MD5, realm="xyz.com", nonce="7d0754cc"
Content-Length: 0
2015-04-22 11:55:43,637 SENT to 10.99.00.00/5060 [TransportManager 0]
REGISTER sip:10.99.00.00 SIP/2.0
Via: SIP/2.0/UDP 10.99.00.00:52016;rport;branch=z9hG4bK3Oe6XIIh8
Max-Forwards: 70
To: <sip:username@10.99.00.00>
From: <sip:username@10.99.00.00>;tag=vGbh8M9A
Call-ID: mCbF4794-1429696542758@10.99.00.00
CSeq: 2 REGISTER
Contact: <sip:username@10.99.00.00:52016;transport=UDP>
Authorization: Digest username="username", realm="xyz.com", nonce="7d0754cc", uri="sip:10.99.00.00", response="4150b8392729806ff601eb6d67da7c19"
2015-04-22 11:55:43,638 RECEIVED from 10.99.00.00/5060 [TransportManager 0]
OPTIONS sip:username@10.99.00.00:52016;transport=UDP SIP/2.0
Via: SIP/2.0/UDP 10.99.00.00:5060;branch=z9hG4bK21f59b09
Max-Forwards: 70
From: "asterisk" <sip:asterisk@10.99.00.00>;tag=as2093e268
To: <sip:username@10.99.00.00:52016;transport=UDP>
Contact: <sip:asterisk@10.99.00.00:5060>
Call-ID: 77805e3c524799632da223b942a4e8f1@10.99.00.00:5060
CSeq: 102 OPTIONS
User-Agent: Asterisk PBX 10.5.1
Date: Wed, 22 Apr 2015 09:55:43 GMT
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH
Supported: replaces, timer
Content-Length: 0
2015-04-22 11:55:43,660 RECEIVED from 10.99.00.00/5060 [TransportManager 0]
SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.99.00.00:52016;branch=z9hG4bK3Oe6XIIh8;received=10.99.00.00;rport=52016
From: <sip:username@10.99.00.00>;tag=vGbh8M9A
To: <sip:username@10.99.00.00>;tag=as7c9471aa
Call-ID: mCbF4794-1429696542758@10.99.00.00
CSeq: 2 REGISTER
Server: Asterisk PBX 10.5.1
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH
Supported: replaces, timer
Expires: 240
Contact: <sip:username@10.99.00.00:52016;transport=UDP>;expires=240
Date: Wed, 22 Apr 2015 09:55:43 GMT
Content-Length: 0
I compared both the packets and didnt find any difference. I dont understand why I am not geeting Authorized. Also the localIP and SIPIP are different in this case.
I think the problem might be with the ports but I didnt find any help on the net for assigning the rport and sipport: 5060. I would also like to get more information on it.
The call ids on both REGISTERs CSeq 1 and CSeq 2 should be the same. They are different in your case.