[SR-Users] Publish XML and xpath

[Igor Olhovskiy]

Daniel,

Many thanks!

Your "replace" solution looks more elegant than just remove the whole 
string.

Regards,
Igor

Le 10.02.2022 à 16:52, Daniel-Constantin Mierla a écrit :
>
> Hello,
>
> actually the problem is the mess SIMPLE RFC authors made with XML 
> namespaces, by not setting and not using a prefix for them, otherwise 
> the #012 is end-of-line printed by syslog as octal character.
>
> The solutions:
>
> 1) replace "xmlns=" with something else like "xyzwq=":
>
> $xml(body=>doc) = $(rb{s.replace,xmlns=,xyzwq=})
>
> and use xpath without concerning of xml namespaces prefix.
>
> 2) register a prefix for the namespace using xml_ns parameter from 
> xmlops module and use that prefix in xpath expressions.
>
> See a past discussion on the mailing list:
>
>    - 
> https://lists.kamailio.org/pipermail/sr-users/2010-December/066690.html
>
> Cheers,
> Daniel
>
> On 10.02.22 16:25, Igor Olhovskiy wrote:
>>
>> Hello
>>
>> Just to add, when I'm trying to dump $rb to logs, I'm getting this line
>>
>> <?xml version="1.0"?>#012<dialog-info xmlns="urn:ietf:params:xml:ns:dialog-info" version="0" state="full" entity="sip:88881 at dev.company">#012  <dialog id="f-XGMVyeO0" direction="recipient">#012    <state>terminated</state>#012  </dialog>#012</dialog-info>
>>
>> So, I expect problem is in this #012 + extra spaces. Is there a way 
>> to clean it up in an easy way?
>>
>> Regards,
>> Igor
>> Le 10.02.2022 à 16:01, Igor Olhovskiy a écrit :
>>>
>>> Hello,
>>>
>>> I'm trying to get state of endpoint from PUBLISH message in a most 
>>> simple way using xmlops module
>>>
>>> Trying to make this
>>>
>>> $xml(body=>doc) = $rb;
>>> log("L_ERR", "$rU is now in state $xml(body=>xpath:/dialog-info/dialog/state)\n");
>>>
>>> XML in PUBLISH itself
>>>
>>> <?xml version="1.0"?>
>>> <dialog-info xmlns="urn:ietf:params:xml:ns:dialog-info" version="0" state="full" entity="sip:88881 at dev.company">
>>>    <dialog id="v6qmEYf5yI" direction="initiator">
>>>      <state>confirmed</state>
>>>    </dialog>
>>> </dialog-info>
>>>
>>>
>>> Actual text in log is
>>>
>>> ... <script>: 88881 is now in state
>>>
>>> Means it's empty. xmlops module is loaded with no parameters. Tried 
>>> also string
>>>
>>> $xml(body=>xpath:/dialog-info/dialog/state/text())
>>>
>>> -> same result
>>>
>>> What am I missing here?
>>>
>>> kamailio 5.4.6
>>>
>>> -- 
>>> Thanks in advance,
>>> Igor
>>
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> -- 
> Daniel-Constantin Mierla --www.asipto.com
> www.twitter.com/miconda  --www.linkedin.com/in/miconda
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>    Feb 21-24, 2022 (America Timezone)
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