Remove some unnecessary resolves.

Fix NAPTR queries, getting SRV query string from NAPTR results.
Fix NPE when there is no SERVER_ADDRESS saved.
Process SIP 423 Interval Too Brief to update our expiration time value.
Disable Jabber user id field when editing jabber accounts.

src/net/java/sip/communicator/impl/protocol/sip/ProtocolProviderServiceSipImpl.java

@@ -2027,8 +2027,6 @@ void initOutboundProxy(SipAccountID accountID, int ix)
             proxyAddress = proxySocketAddress.getAddress();
             proxyPort = proxySocketAddress.getPort();
 
-            proxyAddressStr = proxyAddress.getHostName();
-
             if (logger.isTraceEnabled())
                 logger.trace("Setting proxy address = " + proxyAddressStr);
 
@@ -2069,9 +2067,7 @@ void initOutboundProxy(SipAccountID accountID, int ix)
         }
 
         // Return if no proxy is specified or if the proxyAddress is null.
-        if(proxyAddressStr == null
-           || proxyAddressStr.length() == 0
-           || proxyAddress == null)
+        if(proxyAddress == null)
         {
             return;
         }
@@ -2692,17 +2688,22 @@ public void resolveSipAddress(
                     for(String[] rec : naptrRecords)
                     {
                         resolveSRV(
-                                address,
+                                rec[2],
                                 rec[1],
                                 resultAddresses,
                                 resultTransports,
-                                preferIPv6Addresses);
+                                preferIPv6Addresses,
+                                true);
                     }
 
                     // NAPTR found use only it
                     if(logger.isInfoEnabled())
                         logger.info("Found NAPRT record and using it:"
                             + resultAddresses);
+
+                    // return only if found something
+                    if(resultAddresses.size() > 0
+                        && resultTransports.size() > 0)
                     return;
                 }
             }
@@ -2720,7 +2721,8 @@ public void resolveSipAddress(
                 transport,
                 resultAddresses,
                 resultTransports,
-                preferIPv6Addresses);
+                preferIPv6Addresses,
+                false);
         }
         catch (ParseException e)
         {
@@ -2871,17 +2873,25 @@ public InetSocketAddress resolveSipAddress(String address)
      * @param resultAddresses the result address after resolve.
      * @param resultTransports and the addresses transports.
      * @param preferIPv6Addresses is ipv6 addresses are preferred over ipv4.
+     * @param srvQueryString is the supplied address is of type
+     *  _sip(s)._protocol.address, a string ready for srv queries, used
+     * when we have a NAPTR returned records with value <tt>true</tt>.
      * @throws ParseException exception when parsing dns address
      */
     private void resolveSRV(String address,
                             String transport,
                             List<InetSocketAddress> resultAddresses,
                             List<String> resultTransports,
-                            boolean preferIPv6Addresses)
+                            boolean preferIPv6Addresses,
+                            boolean srvQueryString)
             throws  ParseException
     {
-        InetSocketAddress[] socketAddresses =
-            NetworkUtils.getSRVRecords(
+        InetSocketAddress[] socketAddresses;
+
+            if(srvQueryString)
+                socketAddresses = NetworkUtils.getSRVRecords(address);
+            else
+                socketAddresses = NetworkUtils.getSRVRecords(
                     transport.equalsIgnoreCase(ListeningPoint.TLS)
                             ? "sips" : "sip",
                     transport.equalsIgnoreCase(ListeningPoint.UDP)

src/net/java/sip/communicator/impl/protocol/sip/SipMessageFactory.java

@@ -1039,6 +1039,11 @@ public Request createRegisterRequest(Address      addressOfRecord,
         String domain = protocolProvider.getAccountID().
             getAccountPropertyString(ProtocolProviderFactory.SERVER_ADDRESS);
 
+        // we used to take domain from toHeader, if there is no such
+        // account property back to previous behaviour
+        if(domain == null)
+            domain = ((SipURI) toHeader.getAddress().getURI()).getHost();
+
         //Request URI
         SipURI requestURI = protocolProvider.getAddressFactory()
                 .createSipURI(null, domain);

src/net/java/sip/communicator/impl/protocol/sip/SipRegistrarConnection.java

@@ -163,7 +163,8 @@ public SipRegistrarConnection(
         this.sipProvider = sipProviderCallback;
         this.currentRegistrarAddress = registrarAddresses[0];
         registrarURI = sipProvider.getAddressFactory().createSipURI(
-                null, this.currentRegistrarAddress.getHostName());
+                null,
+                this.currentRegistrarAddress.getAddress().getHostAddress());
 
         if(this.currentRegistrarAddress.getPort() != ListeningPoint.PORT_5060)
             registrarURI.setPort(this.currentRegistrarAddress.getPort());
@@ -313,9 +314,11 @@ private boolean registerUsingNextAddress()
             try
             {
                 registrarURI = sipProvider.getAddressFactory().createSipURI(
-                    null, this.currentRegistrarAddress.getHostName());
+                        null,
+                        this.currentRegistrarAddress.getAddress().getHostAddress());
 
-                if(this.currentRegistrarAddress.getPort() != ListeningPoint.PORT_5060)
+                if(this.currentRegistrarAddress.getPort()
+                        != ListeningPoint.PORT_5060)
                     registrarURI.setPort(this.currentRegistrarAddress.getPort());
 
                 // as the transport may change NAPTR records provides
@@ -867,6 +870,11 @@ else if (response.getStatusCode() == Response.UNAUTHORIZED
                     clientTransaction, response, sourceProvider);
             processed = true;
         }
+        else if (response.getStatusCode() == Response.INTERVAL_TOO_BRIEF)
+        {
+            processIntervalTooBrief(response);
+            processed = true;
+        }
         else if ( response.getStatusCode() >= 400 )
         {
             logger.error("Received an error response.");
@@ -1033,6 +1041,56 @@ public boolean processIOException(IOExceptionEvent exceptionEvent)
         return true;
     }
 
+    /**
+     * Process error 423 Interval Too Brief. If there is minimum interval
+     * specified use it. Check the specified interval is greater than the one
+     * we used in our register.
+     * @param response the response containing the min expires header.
+     */
+    private void processIntervalTooBrief(Response response)
+    {
+        // interval is too brief, if we have specified correct interval
+        // in the response use it and re-register
+        MinExpiresHeader header =
+                (MinExpiresHeader)response.getHeader(MinExpiresHeader.NAME);
+
+        if(header != null)
+        {
+            int expires = header.getExpires();
+            if(expires > registrationsExpiration)
+            {
+                registrationsExpiration = expires;
+
+                try
+                {
+                    register();
+
+                    return;
+                }
+                catch (Throwable e)
+                {
+                    logger.error("Cannot send register!", e);
+
+                    setRegistrationState(
+                        RegistrationState.CONNECTION_FAILED,
+                        RegistrationStateChangeEvent.REASON_NOT_SPECIFIED,
+                            "A timeout occurred while trying to " +
+                                "connect to the server.");
+
+                    return;
+                }
+            }
+        }
+
+        //tell the others we couldn't register
+        this.setRegistrationState(
+            RegistrationState.CONNECTION_FAILED
+            , RegistrationStateChangeEvent.REASON_NOT_SPECIFIED
+            , "Received an error while trying to register. "
+            + "Server returned error:" + response.getReasonPhrase()
+        );
+    }
+
     /**
     * Returns a string representation of this connection instance
     * instance including information that would permit to distinguish it among

src/net/java/sip/communicator/plugin/jabberaccregwizz/AccountPanel.java

@@ -208,6 +208,7 @@ String getUsername()
     void setUsername(String username)
     {
         userIDField.setText(username);
+        userIDField.setEnabled(false);
     }
 
     /**

src/net/java/sip/communicator/util/NetworkUtils.java

@@ -1019,7 +1019,7 @@ private static boolean isMappedIPv4Addr(byte[] address)
     private static Lookup createLookup(String domain, int type)
         throws TextParseException
     {
-        Lookup lookup = new Lookup(domain, Type.SRV);
+        Lookup lookup = new Lookup(domain, type);
 
         //initiate our global parallel resolver if this is our first ever
         //DNS query.