Re: Stack dropped 200 for INVITE

I can provide a separate encoding utility in the RI for such things 
(Lebing, want to write one :-) ?)  but the stack should be strict about 
checking and true to the RFC so I dont propose to move such an encoder 
into the stack.

Regards,

Ranga

Jeroen van Bemmel wrote:

>> I'd like to avoid the slippery slope of deviations from the RFC given 
>> that this is supposed to be a RI (there's usually a gotcha somewhere 
>> along the line when one makes such devations). It may be equally 
>> simple to expect the caller to just encode the URI correctly. Lebing, 
>> you may want to check and see if there's a Java http url utility that 
>> can help with correctly encoding escaped characters.
>>
>
> Be aware that the encoding rules are very specific to SIP. An encoder 
> for HTTP will not perform the proper transformations.
>
> I agree that there are slippery details here, but that is IMHO 
> *exactly* what the stack should be hiding from the application!
> (Same applies e.g. to escaping of '"' and '\' characters in quoted 
> strings like the display name. I'm willing to bet that most 
> applications that currently allow the user to enter this somewhere  - 
> e.g. in an input field in the GUI - get this wrong)
>
> Jeroen
>
>> Regards,
>>
>> Ranga
>>
>>>
>>> Regards,
>>>
>>> Jeroen
>>>
>>>
>>> ----- Original Message ----- From: "Lebing Xie" 
>>> <[email protected]>
>>> To: "M. Ranganathan" <[email protected]>
>>> Cc: "sip mailing" <[email protected]>
>>> Sent: Wednesday, May 10, 2006 4:14 PM
>>> Subject: Re: [nist-sip] Stack dropped 200 for INVITE
>>>
>>>
>>>> Hi, Rang
>>>>
>>>> The URI is:
>>>> sip:[email protected]:5064;caller="sip:[email protected]" 
>>>>
>>>>
>>>> but the URL Parser (gov.nist.javax.sip.parser.AddressParser L33) 
>>>> return:
>>>> sip:[email protected]:5064;caller=
>>>>
>>>> urs Lebing
>>>>
>>>>
>>>> Error Log:
>>>>
>>>> Expecting >>>><<< got >>>"<<< java.text.ParseException: From:
>>>> <sip:[email protected]:5064;caller="sip:[email protected]">;tag=599416 
>>>> Expecting >>>><<< got >>>"<<< at 
>>>> gov.nist.core.LexerCore.match(LexerCore.java:248) at 
>>>> gov.nist.javax.sip.parser.AddressParser.nameAddr(AddressParser.java:38) 
>>>> at 
>>>> gov.nist.javax.sip.parser.AddressParser.address(AddressParser.java:86) 
>>>> at 
>>>> gov.nist.javax.sip.parser.AddressParametersParser.parse(AddressParametersParser.java:29) 
>>>> at gov.nist.javax.sip.parser.FromParser.parse(FromParser.java:34) 
>>>> at 
>>>> gov.nist.javax.sip.parser.StringMsgParser.parseMessage(StringMsgParser.java:555) 
>>>> at 
>>>> gov.nist.javax.sip.parser.StringMsgParser.parseSIPMessage(StringMsgParser.java:327) 
>>>> at 
>>>> gov.nist.javax.sip.stack.UDPMessageChannel.run(UDPMessageChannel.java:235) 
>>>> at java.lang.Thread.run(Thread.java:595)
>>>>
>>>>
>>>> On Wed, 2006-05-10 at 08:41 -0400, M. Ranganathan wrote:
>>>>
>>>>> Lebing,
>>>>>
>>>>> That is odd! Seems  to work fine and your branch is fine too. 
>>>>> Check in
>>>>> the debug log to see if there was an error in parsing the response
>>>>> (resulting in the response being dropped). If this is not the case,
>>>>> mail  me a debug log and I can figure it out.
>>>>>
>>>>>
>>>>> Ranga
>>>>>
>>>>> Lebing Xie wrote:
>>>>>
>>>>> >Hallo,
>>>>> >
>>>>> >JAIN-SIP-1.2 stack(CVS yesterday) dropped the 200 for INVITE
>>>>> (Lister did
>>>>> >not get the ResponseEvent). Stack tried to retransmit INVITE for a
>>>>> while
>>>>> >and got a transaction timeout later. BranchID in 200 seemed OK, any
>>>>> idea
>>>>> >about it?
>>>>> >
>>>>> >thanx, urs Lebing
>>>>> >
>>>>> >
>>>>> >
>>>>> >
>>>>> >************ INVITE ************
>>>>> >
>>>>> >Session Initiation Protocol
>>>>> >Request-Line: INVITE
>>>>> >sip:[email protected];voicexml=http://193.175.134.83:8080/vxml/mailbox_main.vxml 
>>>>>
>>>>>
>>>>> >SIP/2.0
>>>>> >Message Header
>>>>> >Call-ID: [email protected]
>>>>> >CSeq: 1 INVITE
>>>>> >From:
>>>>> ><sip:[email protected]:5064;caller="sip:[email protected]">;tag=657366 
>>>>>
>>>>>
>>>>> >To:
>>>>> ><sip:[email protected];voicexml=http://193.175.134.83:8080/vxml/mailbox_main.vxml> 
>>>>>
>>>>>
>>>>> >Via: SIP/2.0/UDP
>>>>> >pellmell.open-ims.org:5064;sipseesessionid=1ir0oxwe30s0i;branch=z9hG4bKaf12489b1bb84bdb2daf3d7a997d74ac 
>>>>>
>>>>>
>>>>> >Max-Forwards: 70
>>>>> >Route: <sip:[email protected];lr>
>>>>> >Content-Type: application/sdp
>>>>> >Contact: <sip:[email protected]:5064;transport=udp>
>>>>> >Record-Route:
>>>>> ><sip:pellmell.open-ims.org:5064;lr;transport=udp;sipseesessionid=1ir0oxwe30s0i> 
>>>>>
>>>>>
>>>>> >Content-Length: 241
>>>>> >Message body
>>>>> >
>>>>> >
>>>>> >*********** first 200 **************
>>>>> >
>>>>> >Session Initiation Protocol
>>>>> >Status-Line: SIP/2.0 200 Ok
>>>>> >Message Header
>>>>> >Server: SnowShoreMediaServer/2.0.0-060228A.FC2
>>>>> >Via: SIP/2.0/UDP
>>>>> >pellmell.testDomain.org:5064;received=193.175.134.83;sipseesessionid=1ir0oxwe30s0i;branch=z9hG4bKaf12489b1bb84bdb2daf3d7a997d74ac 
>>>>>
>>>>>
>>>>> >To:
>>>>> ><sip:[email protected];voicexml=http://193.175.134.83:8080/vxml/mailbox_main.vxml>;tag=1147261142 
>>>>>
>>>>>
>>>>> >From:
>>>>> ><sip:[email protected]:5064;caller="sip:[email protected]">;tag=657366 
>>>>>
>>>>>
>>>>> >Call-ID: [email protected]
>>>>> >CSeq: 1 INVITE
>>>>> >Record-Route:
>>>>> ><sip:pellmell.testDomain.org:5064;lr;transport=udp;sipseesessionid=1ir0oxwe30s0i> 
>>>>>
>>>>>
>>>>> >Contact: sip:193.175.134.78:5060
>>>>> >Content-Type: application/sdp
>>>>> >Session-Expires: 1200
>>>>> >Content-Length: 184
>>>>> >Message body
>>>>> >
>>>>> >
>>>>> >_______________________________________________
>>>>> >nist-sip mailing list
>>>>> >[email protected]
>>>>> >http://www-x.antd.nist.gov/mailman/listinfo/nist-sip
>>>>> >
>>>>> >
>>>>> >
>>>>>
>>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> nist-sip mailing list
>>>> [email protected]
>>>> http://www-x.antd.nist.gov/mailman/listinfo/nist-sip
>>>
>>>
>>>
>>>
>>
>>
>> -- 
>> M. Ranganathan
>> Advanced Networking Technologies Division,
>> National Institute of Standards and Technology (NIST),
>> 100 Bureau Drive, Stop 8920, Gaithersburg, MD 20899. tel:301 975 3664 
>> , fax:301 590 0932 http://w3.antd.nist.gov/
>> Advanced Networking Technologies For the People!
>>
>
>


-- 
M. Ranganathan 

Advanced Networking Technologies Division,
National Institute of Standards and Technology (NIST),
100 Bureau Drive, Stop 8920, Gaithersburg, MD 20899. 
tel:301 975 3664 , fax:301 590 0932 http://w3.antd.nist.gov/
Advanced Networking Technologies For the People!