Error parsing parameter value

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Duarte Rocha

8 Oct 2019 8 Oct '19

2:36 p.m.

Greetings, I'm testing some parameters actions and i found a weird behaviour This is my code for the test : $var(Parameter_List) = "blue=twelve;green=twe\"lve\";yellow=\"twelve\""; xerr("Parameter List = $var(Parameter_List)"); xerr("Value of Parameter blue = $(var(Parameter_List){param.value,blue})"); xerr("Value of Parameter green = $(var(Parameter_List){param.value,green})"); xerr("Value of Parameter yellow = $(var(Parameter_List){param.value,yellow})"); The printed logs are the following : ERROR: <script>: Parameter List = blue=twelve;green=twe"lve";yellow="twelve" ERROR: <script>: Value of Parameter blue = twelve ERROR: <script>: Value of Parameter green = twe"lve" ERROR: <script>: Value of Parameter yellow = twelve I have also tried setting the string as : $var(Parameter_List) = 'blue=twelve;green=twe"lve";yellow="twelve"'; But the results were similar The "" are not recognized in some scenarios. Is this intended behaviour or should i submit it as a bug? Best Regards, Duarte Rocha

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David Villasmil

8 Oct 8 Oct

3:55 p.m.

What’s the expected outcome? On Tue, 8 Oct 2019 at 12:39, Duarte Rocha <duarterocha91(a)gmail.com> wrote:

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-- Regards, David Villasmil email: david.villasmil.work(a)gmail.com phone: +34669448337

David Villasmil

4 p.m.

I ask because the output looks good, you’re escaping the double quotes with \ and on the other, no escaping is needed because you’re using single quotes. On Tue, 8 Oct 2019 at 13:55, David Villasmil <david.villasmil.work(a)gmail.com> wrote:

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What’s the expected outcome? On Tue, 8 Oct 2019 at 12:39, Duarte Rocha <duarterocha91(a)gmail.com> wrote:

-- Regards, David Villasmil email: david.villasmil.work(a)gmail.com phone: +34669448337

Duarte Rocha

5:09 p.m.

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Daniel-Constantin Mierla

5:29 p.m.

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Hi David. I want to ble able to print : yellow = "twelve". In the green example the "" are printed, but on the yellow example it is not. Cheers A terça, 8/10/2019, 12:36, Duarte Rocha <duarterocha91(a)gmail.com <mailto:duarterocha91@gmail.com>> escreveu: Greetings, I'm testing some parameters actions and i found a weird behaviour This is my code for the test : $var(Parameter_List) = "blue=twelve;green=twe\"lve\";yellow=\"twelve\""; xerr("Parameter List = $var(Parameter_List)"); xerr("Value of Parameter blue = $(var(Parameter_List){param.value,blue})"); xerr("Value of Parameter green = $(var(Parameter_List){param.value,green})"); xerr("Value of Parameter yellow = $(var(Parameter_List){param.value,yellow})"); The printed logs are the following : ERROR: <script>: Parameter List = blue=twelve;green=twe"lve";yellow="twelve" ERROR: <script>: Value of Parameter blue = twelve ERROR: <script>: Value of Parameter green = twe"lve" ERROR: <script>: Value of Parameter yellow = twelve I have also tried setting the string as : $var(Parameter_List) = 'blue=twelve;green=twe"lve";yellow="twelve"'; But the results were similar The "" are not recognized in some scenarios. Is this intended behaviour or should i submit it as a bug? Best Regards, Duarte Rocha _______________________________________________ Kamailio (SER) - Users Mailing List sr-users(a)lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users

-- Daniel-Constantin Mierla -- www.asipto.com www.twitter.com/miconda -- www.linkedin.com/in/miconda Kamailio Advanced Training, Oct 21-23, 2019, Berlin, Germany -- https://asipto.com/u/kat

David Villasmil

5:36 p.m.

Indeed, it looks like the parser takes 'yellow="twelve"' as a quoted string, since, if you do yellow="twel ve" it would then output `twel ve` properly. Which kind of makes sense, since quotes should be used if one wants a long string like "hello my name is david". I'll defer to Daniel here. Regards, David Villasmil email: david.villasmil.work(a)gmail.com phone: +34669448337 On Tue, Oct 8, 2019 at 3:31 PM Daniel-Constantin Mierla <miconda(a)gmail.com> wrote:

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Hello, the values of parameters can be quoted or unquoted, depending on the format (e.g., URI parameters have to be unquoted). If they start with a quote, then it has to be terminated with the same quote and then the value is in between the quotes. The {param} transformation is using the same parser as for parameters in SIP message. Now, I am not sure if quote is allowed in an unquoted parameters like green, the grammar in SIP specs has to be checked... Cheers, Daniel On 08.10.19 16:09, Duarte Rocha wrote: Hi David. I want to ble able to print : yellow = "twelve". In the green example the "" are printed, but on the yellow example it is not. Cheers A terça, 8/10/2019, 12:36, Duarte Rocha <duarterocha91(a)gmail.com> escreveu:

_______________________________________________ Kamailio (SER) - Users Mailing Listsr-users@lists.kamailio.orghttps://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users -- Daniel-Constantin Mierla -- www.asipto.comwww.twitter.com/miconda -- www.linkedin.com/in/miconda Kamailio Advanced Training, Oct 21-23, 2019, Berlin, Germany -- https://asipto.com/u/kat _______________________________________________ Kamailio (SER) - Users Mailing List sr-users(a)lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users

Duarte Rocha

5:38 p.m.

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Daniel-Constantin Mierla

5:54 p.m.

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Thank you for your answer. The green example was just for testing. My real example is similar to yellow on a header parameter since i have a client sending me the value of sip.instance between quotes and i can't identify the value when it is quoted. Example : Contact:<sip:user@domain>;+sip.instance="<urn:uid:00000000000000>" It seems to me be a valid sip parameter, but if it's not i'll warn the client A terça, 8/10/2019, 15:29, Daniel-Constantin Mierla <miconda(a)gmail.com <mailto:miconda@gmail.com>> escreveu: Hello, the values of parameters can be quoted or unquoted, depending on the format (e.g., URI parameters have to be unquoted). If they start with a quote, then it has to be terminated with the same quote and then the value is in between the quotes. The {param} transformation is using the same parser as for parameters in SIP message. Now, I am not sure if quote is allowed in an unquoted parameters like green, the grammar in SIP specs has to be checked... Cheers, Daniel On 08.10.19 16:09, Duarte Rocha wrote:

Hi David. I want to ble able to print : yellow = "twelve". In the green example the "" are printed, but on the yellow example it is not. Cheers A terça, 8/10/2019, 12:36, Duarte Rocha <duarterocha91(a)gmail.com <mailto:duarterocha91@gmail.com>> escreveu: Greetings, I'm testing some parameters actions and i found a weird behaviour This is my code for the test : $var(Parameter_List) = "blue=twelve;green=twe\"lve\";yellow=\"twelve\""; xerr("Parameter List = $var(Parameter_List)"); xerr("Value of Parameter blue = $(var(Parameter_List){param.value,blue})"); xerr("Value of Parameter green = $(var(Parameter_List){param.value,green})"); xerr("Value of Parameter yellow = $(var(Parameter_List){param.value,yellow})"); The printed logs are the following : ERROR: <script>: Parameter List = blue=twelve;green=twe"lve";yellow="twelve" ERROR: <script>: Value of Parameter blue = twelve ERROR: <script>: Value of Parameter green = twe"lve" ERROR: <script>: Value of Parameter yellow = twelve I have also tried setting the string as : $var(Parameter_List) = 'blue=twelve;green=twe"lve";yellow="twelve"'; But the results were similar The "" are not recognized in some scenarios. Is this intended behaviour or should i submit it as a bug? Best Regards, Duarte Rocha _______________________________________________ Kamailio (SER) - Users Mailing List sr-users(a)lists.kamailio.org <mailto:sr-users@lists.kamailio.org> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users

-- Daniel-Constantin Mierla -- www.asipto.com <http://www.asipto.com> www.twitter.com/miconda <http://www.twitter.com/miconda> -- www.linkedin.com/in/miconda <http://www.linkedin.com/in/miconda> Kamailio Advanced Training, Oct 21-23, 2019, Berlin, Germany -- https://asipto.com/u/kat

-- Daniel-Constantin Mierla -- www.asipto.com www.twitter.com/miconda -- www.linkedin.com/in/miconda Kamailio Advanced Training, Oct 21-23, 2019, Berlin, Germany -- https://asipto.com/u/kat

Duarte Rocha

6:10 p.m.

Yes, i think both ways are correct The only problem is that i want to have the real value using {uri.param} which would be "<urn:uid:00000000000000>". However it only returns <urn:uid:00000000000000>, without the quotes. A terça, 8/10/2019, 15:54, Daniel-Constantin Mierla <miconda(a)gmail.com> escreveu:

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The example you gave with the value of +sip.instance between double quotes is valid, I have seen it many times like this. On the other hand, other parameters of Contact header can usually be without quoted value, like: Contact:<sip:user@domain>;reg-id=1 Both types can be in the header at the same time. Is the value with double quotes making troubles somewhere? Cheers, Daniel On 08.10.19 16:38, Duarte Rocha wrote: Thank you for your answer. The green example was just for testing. My real example is similar to yellow on a header parameter since i have a client sending me the value of sip.instance between quotes and i can't identify the value when it is quoted. Example : Contact:<sip:user@domain> ;+sip.instance="<urn:uid:00000000000000>" It seems to me be a valid sip parameter, but if it's not i'll warn the client A terça, 8/10/2019, 15:29, Daniel-Constantin Mierla <miconda(a)gmail.com> escreveu:

Daniel-Constantin Mierla -- www.asipto.comwww.twitter.com/miconda -- www.linkedin.com/in/miconda Kamailio Advanced Training, Oct 21-23, 2019, Berlin, Germany -- https://asipto.com/u/kat

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Daniel-Constantin Mierla
David Villasmil
Duarte Rocha