30 Nov
2021
30 Nov
'21
10:40 p.m.
Hello all,
Looking for some clarification regarding quoting and !#defenv . I understand that the
example below fails because the environmental variable HOME is not quoted, thus when used
in the xlog() call it fails. How is it possible to evaluate and/or use the value of the
environmental variable if defined as a preprocessor variable? Looking at the
documentation the reason for this directive is "It is a simplified alternative of
using #!substdef with $env(NAME) in the replacement part." But #!substdef would allow
setting the value inside of a quoted string, so does it really meet that requirement?
I'm aware that I could use $env(HOME) rather than a preprocessor directive of HOME.
I'm just trying to understand the usage of the #!defenv feature.
#!KAMAILIO
## Tested in 5.5.2
loadmodule "xlog"
loadmodule "pv"
loadmodule "evrexec"
modparam("evrexec", "exec",
"name=evrexec:timer;wait=1000;workers=1;")
#!defenv HOME
request_route{
forward();
}
event_route[evrexec:timer] {
xlog("L_N", "HOME: " + HOME + "\n");
}
Ben Kaufman
6 Dec
6 Dec
10:55 a.m.
Hello,
#!substdef does not set the value inside quoted string, it replaces
inside a string value, so it does not put quotes around replacement
part. So it does it it is written in the docs. There is #!substdefs
witch can create a define with quoted value.
Note that defines are standalone-token replacement, you can define an ID
to a number, to a keyword (e.g., src_ip), to a quoted string or even a
multi-line script snippet, like:
#!define IDLOOP $var(i) = 0; \
while($var(i)<5) { \
xlog("++++ $var(i)\n"); \
$var(i) = $var(i) + 1; \
}
See the core cookbook for more details.
Anyhow, as using env variable values as quoted string is useful and
setting them with quotes might look odd, I added #!defenvs:
* https://www.kamailio.org/wiki/cookbooks/devel/core#defenvs
Cheers,
Daniel
On 30.11.21 22:40, Ben Kaufman wrote:
Hello all,
Looking for some clarification regarding quoting and !#defenv . I
understand that the example below fails because the environmental
variable HOME is not quoted, thus when used in the xlog() call it
fails. How is it possible to evaluate and/or use the value of the
environmental variable if defined as a preprocessor variable? Looking
at the documentation the reason for this directive is “It is a
simplified alternative of using *#!substdef* with *$env(NAME)* in the
replacement part.” But #!substdef would allow setting the value inside
of a quoted string, so does it really meet that requirement?
I’m aware that I could use $env(HOME) rather than a preprocessor
directive of HOME. I’m just trying to understand the usage of the
#!defenv feature.
#!KAMAILIO
## Tested in 5.5.2
loadmodule "xlog"
loadmodule "pv"
loadmodule "evrexec"
modparam("evrexec", "exec",
"name=evrexec:timer;wait=1000;workers=1;")
#!defenv HOME
request_route{
forward();
}
event_route[evrexec:timer] {
xlog("L_N", "HOME: " + HOME + "\n");
}
*Ben Kaufman*
__________________________________________________________
Kamailio - Users Mailing List - Non Commercial Discussions
* sr-users(a)lists.kamailio.org
Important: keep the mailing list in the recipients, do not reply only to the sender!
Edit mailing list options or unsubscribe:
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--
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www.twitter.com/miconda -- www.linkedin.com/in/miconda
Kamailio Advanced Training - Online
Feb 21-24, 2022 (America Timezone)
* https://www.asipto.com/sw/kamailio-advanced-training-online/
9:56 p.m.
Thank you :)
A follow up question would be on the usability of the #!defenv (and probably #!defenvs)
usability with #!ifdef. In the scenario below, if the environmental variable
WITH_DEBUGGER is not defined, then Kamailio will fail to start, thus the #!ifdef is
somewhat limited. It makes sense for scenarios where someone might toggle the setting
editing the config file, but it would be very convenient to toggle the environmental
variable instead, particularly in containerized environments. Any thoughts on how best
to control this?
#!defenv WITH_DEBUGGER
#!ifdef WITH_DEBUGGER
loadmodule "debugger"
. . .
#!endif
Ben Kaufman
From: Daniel-Constantin Mierla <miconda(a)gmail.com>
Sent: Monday, December 6, 2021 3:55 AM
To: Kamailio (SER) - Users Mailing List <sr-users(a)lists.kamailio.org>rg>; Ben Kaufman
<bkaufman(a)nexvortex.com>
Subject: Re: [SR-Users] Unquoted values from #!defenv
Hello,
#!substdef does not set the value inside quoted string, it replaces inside a string value,
so it does not put quotes around replacement part. So it does it it is written in the
docs. There is #!substdefs witch can create a define with quoted value.
Note that defines are standalone-token replacement, you can define an ID to a number, to a
keyword (e.g., src_ip), to a quoted string or even a multi-line script snippet, like:
#!define IDLOOP $var(i) = 0; \
while($var(i)<5) { \
xlog("++++ $var(i)\n"); \
$var(i) = $var(i) + 1; \
}
See the core cookbook for more details.
Anyhow, as using env variable values as quoted string is useful and setting them with
quotes might look odd, I added #!defenvs:
*
https://www.kamailio.org/wiki/cookbooks/devel/core#defenvs<https://nam11…
Cheers,
Daniel
On 30.11.21 22:40, Ben Kaufman wrote:
Hello all,
Looking for some clarification regarding quoting and !#defenv . I understand that the
example below fails because the environmental variable HOME is not quoted, thus when used
in the xlog() call it fails. How is it possible to evaluate and/or use the value of the
environmental variable if defined as a preprocessor variable? Looking at the
documentation the reason for this directive is "It is a simplified alternative of
using #!substdef with $env(NAME) in the replacement part." But #!substdef would allow
setting the value inside of a quoted string, so does it really meet that requirement?
I'm aware that I could use $env(HOME) rather than a preprocessor directive of HOME.
I'm just trying to understand the usage of the #!defenv feature.
#!KAMAILIO
## Tested in 5.5.2
loadmodule "xlog"
loadmodule "pv"
loadmodule "evrexec"
modparam("evrexec", "exec",
"name=evrexec:timer;wait=1000;workers=1;")
#!defenv HOME
request_route{
forward();
}
event_route[evrexec:timer] {
xlog("L_N", "HOME: " + HOME + "\n");
}
Ben Kaufman
__________________________________________________________
Kamailio - Users Mailing List - Non Commercial Discussions
* sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>
Important: keep the mailing list in the recipients, do not reply only to the sender!
Edit mailing list options or unsubscribe:
*
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--
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*
https://www.asipto.com/sw/kamailio-advanced-training-online/<https://nam…
7 Dec
7 Dec
9:21 a.m.
The current behaviour targets the use of existing values from the
environment variables. If you need other kind of features, you can
propose pull requests. Or you can eventually have a start script that
sets defines with -A cli parameter based on env variables.
Cheers,
Daniel
On 06.12.21 21:56, Ben Kaufman wrote:
Thank you :)
A follow up question would be on the usability of the #!defenv (and
probably #!defenvs) usability with #!ifdef. In the scenario below, if
the environmental variable WITH_DEBUGGER is not defined, then Kamailio
will fail to start, thus the #!ifdef is somewhat limited. It makes
sense for scenarios where someone might toggle the setting editing the
config file, but it would be very convenient to toggle the
environmental variable instead, particularly in containerized
environments. Any thoughts on how best to control this?
#!defenv WITH_DEBUGGER
#!ifdef WITH_DEBUGGER
loadmodule "debugger"
. . .
#!endif
*Ben Kaufman*
*From:* Daniel-Constantin Mierla <miconda(a)gmail.com>
*Sent:* Monday, December 6, 2021 3:55 AM
*To:* Kamailio (SER) - Users Mailing List
<sr-users(a)lists.kamailio.org>rg>; Ben Kaufman <bkaufman(a)nexvortex.com>
*Subject:* Re: [SR-Users] Unquoted values from #!defenv
Hello,
#!substdef does not set the value inside quoted string, it replaces
inside a string value, so it does not put quotes around replacement
part. So it does it it is written in the docs. There is #!substdefs
witch can create a define with quoted value.
Note that defines are standalone-token replacement, you can define an
ID to a number, to a keyword (e.g., src_ip), to a quoted string or
even a multi-line script snippet, like:
#!define IDLOOP $var(i) = 0; \
while($var(i)<5) { \
xlog("++++ $var(i)\n"); \
$var(i) = $var(i) + 1; \
}
See the core cookbook for more details.
Anyhow, as using env variable values as quoted string is useful and
setting them with quotes might look odd, I added #!defenvs:
* https://www.kamailio.org/wiki/cookbooks/devel/core#defenvs
<https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.kamailio.org%2Fwiki%2Fcookbooks%2Fdevel%2Fcore%23defenvs&data=04%7C01%7Cbkaufman%40nexvortex.com%7C6028b5b0b93344af8d0308d9b89e8a04%7Cafc1818e7b6848568913201b9396c4fc%7C1%7C0%7C637743813349298668%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C2000&sdata=Q2j9FAXfUTB2uNwKhu5OeEmQanN7xmMGDYb9JBJw6JY%3D&reserved=0>
Cheers,
Daniel
On 30.11.21 22:40, Ben Kaufman wrote:
Hello all,
Looking for some clarification regarding quoting and !#defenv . I
understand that the example below fails because the environmental
variable HOME is not quoted, thus when used in the xlog() call it
fails. How is it possible to evaluate and/or use the value of the
environmental variable if defined as a preprocessor variable?
Looking at the documentation the reason for this directive is “It
is a simplified alternative of
using *#!substdef* with *$env(NAME)* in the replacement part.” But
#!substdef would allow setting the value inside of a quoted
string, so does it really meet that requirement?
I’m aware that I could use $env(HOME) rather than a preprocessor
directive of HOME. I’m just trying to understand the usage of the
#!defenv feature.
#!KAMAILIO
## Tested in 5.5.2
loadmodule "xlog"
loadmodule "pv"
loadmodule "evrexec"
modparam("evrexec", "exec",
"name=evrexec:timer;wait=1000;workers=1;")
#!defenv HOME
request_route{
forward();
}
event_route[evrexec:timer] {
xlog("L_N", "HOME: " + HOME + "\n");
}
*Ben Kaufman*
__________________________________________________________
Kamailio - Users Mailing List - Non Commercial Discussions
* sr-users(a)lists.kamailio.org
Important: keep the mailing list in the recipients, do not reply only to the sender!
Edit mailing list options or unsubscribe:
* https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
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--
Daniel-Constantin Mierla -- www.asipto.com
<https://nam11.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.asipto.com%2F&data=04%7C01%7Cbkaufman%40nexvortex.com%7C6028b5b0b93344af8d0308d9b89e8a04%7Cafc1818e7b6848568913201b9396c4fc%7C1%7C0%7C637743813349298668%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C2000&sdata=TSsHgbu0R21zntLh04F9ygSsdMhf2IFMu0gsQH0QdLE%3D&reserved=0>
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Feb 21-24, 2022 (America Timezone)
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--
Daniel-Constantin Mierla -- www.asipto.com
www.twitter.com/miconda -- www.linkedin.com/in/miconda
Kamailio Advanced Training - Online
Feb 21-24, 2022 (America Timezone)
* https://www.asipto.com/sw/kamailio-advanced-training-online/
4:12 p.m.
Thank you. I've been using -A to set values thus far as CMD arguments to the
container's ENTRYPOINT. If submitting a pull request, would it be preferrable to
allow #!defenv/#!defenvs to accept undefined values, or to add new keywords like
#!ifdefenv/#!ifdefenvs ?
Ben Kaufman
From: Daniel-Constantin Mierla <miconda(a)gmail.com>
Sent: Tuesday, December 7, 2021 2:22 AM
To: Ben Kaufman <bkaufman(a)bcmone.com>om>; Kamailio (SER) - Users Mailing List
<sr-users(a)lists.kamailio.org>
Subject: Re: [SR-Users] Unquoted values from #!defenv
The current behaviour targets the use of existing values from the environment variables.
If you need other kind of features, you can propose pull requests. Or you can eventually
have a start script that sets defines with -A cli parameter based on env variables.
Cheers,
Daniel
On 06.12.21 21:56, Ben Kaufman wrote:
Thank you :)
A follow up question would be on the usability of the #!defenv (and probably #!defenvs)
usability with #!ifdef. In the scenario below, if the environmental variable
WITH_DEBUGGER is not defined, then Kamailio will fail to start, thus the #!ifdef is
somewhat limited. It makes sense for scenarios where someone might toggle the setting
editing the config file, but it would be very convenient to toggle the environmental
variable instead, particularly in containerized environments. Any thoughts on how best
to control this?
#!defenv WITH_DEBUGGER
#!ifdef WITH_DEBUGGER
loadmodule "debugger"
. . .
#!endif
Ben Kaufman
From: Daniel-Constantin Mierla <miconda@gmail.com><mailto:miconda@gmail.com>
Sent: Monday, December 6, 2021 3:55 AM
To: Kamailio (SER) - Users Mailing List
<sr-users@lists.kamailio.org><mailto:sr-users@lists.kamailio.org>; Ben Kaufman
<bkaufman@nexvortex.com><mailto:bkaufman@nexvortex.com>
Subject: Re: [SR-Users] Unquoted values from #!defenv
Hello,
#!substdef does not set the value inside quoted string, it replaces inside a string value,
so it does not put quotes around replacement part. So it does it it is written in the
docs. There is #!substdefs witch can create a define with quoted value.
Note that defines are standalone-token replacement, you can define an ID to a number, to a
keyword (e.g., src_ip), to a quoted string or even a multi-line script snippet, like:
#!define IDLOOP $var(i) = 0; \
while($var(i)<5) { \
xlog("++++ $var(i)\n"); \
$var(i) = $var(i) + 1; \
}
See the core cookbook for more details.
Anyhow, as using env variable values as quoted string is useful and setting them with
quotes might look odd, I added #!defenvs:
*
https://www.kamailio.org/wiki/cookbooks/devel/core#defenvs<https://nam11…
Cheers,
Daniel
On 30.11.21 22:40, Ben Kaufman wrote:
Hello all,
Looking for some clarification regarding quoting and !#defenv . I understand that the
example below fails because the environmental variable HOME is not quoted, thus when used
in the xlog() call it fails. How is it possible to evaluate and/or use the value of the
environmental variable if defined as a preprocessor variable? Looking at the
documentation the reason for this directive is "It is a simplified alternative of
using #!substdef with $env(NAME) in the replacement part." But #!substdef would allow
setting the value inside of a quoted string, so does it really meet that requirement?
I'm aware that I could use $env(HOME) rather than a preprocessor directive of HOME.
I'm just trying to understand the usage of the #!defenv feature.
#!KAMAILIO
## Tested in 5.5.2
loadmodule "xlog"
loadmodule "pv"
loadmodule "evrexec"
modparam("evrexec", "exec",
"name=evrexec:timer;wait=1000;workers=1;")
#!defenv HOME
request_route{
forward();
}
event_route[evrexec:timer] {
xlog("L_N", "HOME: " + HOME + "\n");
}
Ben Kaufman
__________________________________________________________
Kamailio - Users Mailing List - Non Commercial Discussions
* sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>
Important: keep the mailing list in the recipients, do not reply only to the sender!
Edit mailing list options or unsubscribe:
*
https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users<https://nam…
--
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www.asipto.com<https://nam11.safelinks.protection.outlook.com/?url=http%…
www.twitter.com/miconda<https://nam11.safelinks.protection.outlook.com/?…
--
www.linkedin.com/in/miconda<https://nam11.safelinks.protection.outlook.c…
Kamailio Advanced Training - Online
Feb 21-24, 2022 (America Timezone)
*
https://www.asipto.com/sw/kamailio-advanced-training-online/<https://nam…
--
Daniel-Constantin Mierla --
www.asipto.com<https://nam11.safelinks.protection.outlook.com/?url=http%…
www.twitter.com/miconda<https://nam11.safelinks.protection.outlook.com/?…
--
www.linkedin.com/in/miconda<https://nam11.safelinks.protection.outlook.c…
Kamailio Advanced Training - Online
Feb 21-24, 2022 (America Timezone)
*
https://www.asipto.com/sw/kamailio-advanced-training-online/<https://nam…
8 Dec
8 Dec
5:17 p.m.
Daniel,
Is the #!defenvs feature still a work in progress? I wrote a change to add #!defenvn and
#!defenvns to allow for undefined environmental variables, and noticed that the string
quoting on #!defenvs doesn't do anything except log the quoting mode in /src/core/
pp_define_set().
Ben Kaufman
Sr. VoIP Engineer
P:
E: bkaufman@bcmone.com<mailto:bkaufman@bcmone.com>
24 hour client support: 855.639.6300<tel:+18556396300>
From: sr-users <sr-users-bounces(a)lists.kamailio.org> On Behalf Of Ben Kaufman
Sent: Tuesday, December 7, 2021 9:12 AM
To: Kamailio (SER) - Users Mailing List <sr-users(a)lists.kamailio.org>
Subject: Re: [SR-Users] Unquoted values from #!defenv
Thank you. I've been using -A to set values thus far as CMD arguments to the
container's ENTRYPOINT. If submitting a pull request, would it be preferrable to
allow #!defenv/#!defenvs to accept undefined values, or to add new keywords like
#!ifdefenv/#!ifdefenvs ?
Ben Kaufman
From: Daniel-Constantin Mierla <miconda@gmail.com<mailto:miconda@gmail.com>>
Sent: Tuesday, December 7, 2021 2:22 AM
To: Ben Kaufman <bkaufman@bcmone.com<mailto:bkaufman@bcmone.com>>; Kamailio
(SER) - Users Mailing List
<sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>>
Subject: Re: [SR-Users] Unquoted values from #!defenv
The current behaviour targets the use of existing values from the environment variables.
If you need other kind of features, you can propose pull requests. Or you can eventually
have a start script that sets defines with -A cli parameter based on env variables.
Cheers,
Daniel
On 06.12.21 21:56, Ben Kaufman wrote:
Thank you :)
A follow up question would be on the usability of the #!defenv (and probably #!defenvs)
usability with #!ifdef. In the scenario below, if the environmental variable
WITH_DEBUGGER is not defined, then Kamailio will fail to start, thus the #!ifdef is
somewhat limited. It makes sense for scenarios where someone might toggle the setting
editing the config file, but it would be very convenient to toggle the environmental
variable instead, particularly in containerized environments. Any thoughts on how best
to control this?
#!defenv WITH_DEBUGGER
#!ifdef WITH_DEBUGGER
loadmodule "debugger"
. . .
#!endif
Ben Kaufman
From: Daniel-Constantin Mierla <miconda@gmail.com><mailto:miconda@gmail.com>
Sent: Monday, December 6, 2021 3:55 AM
To: Kamailio (SER) - Users Mailing List
<sr-users@lists.kamailio.org><mailto:sr-users@lists.kamailio.org>; Ben Kaufman
<bkaufman@nexvortex.com><mailto:bkaufman@nexvortex.com>
Subject: Re: [SR-Users] Unquoted values from #!defenv
Hello,
#!substdef does not set the value inside quoted string, it replaces inside a string value,
so it does not put quotes around replacement part. So it does it it is written in the
docs. There is #!substdefs witch can create a define with quoted value.
Note that defines are standalone-token replacement, you can define an ID to a number, to a
keyword (e.g., src_ip), to a quoted string or even a multi-line script snippet, like:
#!define IDLOOP $var(i) = 0; \
while($var(i)<5) { \
xlog("++++ $var(i)\n"); \
$var(i) = $var(i) + 1; \
}
See the core cookbook for more details.
Anyhow, as using env variable values as quoted string is useful and setting them with
quotes might look odd, I added #!defenvs:
*
https://www.kamailio.org/wiki/cookbooks/devel/core#defenvs<https://nam11…
Cheers,
Daniel
On 30.11.21 22:40, Ben Kaufman wrote:
Hello all,
Looking for some clarification regarding quoting and !#defenv . I understand that the
example below fails because the environmental variable HOME is not quoted, thus when used
in the xlog() call it fails. How is it possible to evaluate and/or use the value of the
environmental variable if defined as a preprocessor variable? Looking at the
documentation the reason for this directive is "It is a simplified alternative of
using #!substdef with $env(NAME) in the replacement part." But #!substdef would allow
setting the value inside of a quoted string, so does it really meet that requirement?
I'm aware that I could use $env(HOME) rather than a preprocessor directive of HOME.
I'm just trying to understand the usage of the #!defenv feature.
#!KAMAILIO
## Tested in 5.5.2
loadmodule "xlog"
loadmodule "pv"
loadmodule "evrexec"
modparam("evrexec", "exec",
"name=evrexec:timer;wait=1000;workers=1;")
#!defenv HOME
request_route{
forward();
}
event_route[evrexec:timer] {
xlog("L_N", "HOME: " + HOME + "\n");
}
Ben Kaufman
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7:07 p.m.
I expected the quoted mode parameter does the work -- I will check and
push the update.
Regarding support for undefined env values, maybe add something like
#!trydefenv, because I find #!defenv useful at is it, to be used when
the env variable must be set for proper working of kamailio (e.g., DB
url) and fail to start if not set.
Cheers,
Daniel
On 08.12.21 17:17, Ben Kaufman wrote:
Daniel,
Is the #!defenvs feature still a work in progress? I wrote a change to
add #!defenvn and #!defenvns to allow for undefined environmental
variables, and noticed that the string quoting on #!defenvs doesn’t do
anything except log the quoting mode in /src/core/ pp_define_set().
*Ben Kaufman*
/Sr. VoIP Engineer/
P:
E: bkaufman(a)bcmone.com
24 hour client support: 855.639.6300 <tel:+18556396300>
*From:* sr-users <sr-users-bounces(a)lists.kamailio.org> *On Behalf Of
*Ben Kaufman
*Sent:* Tuesday, December 7, 2021 9:12 AM
*To:* Kamailio (SER) - Users Mailing List <sr-users(a)lists.kamailio.org>
*Subject:* Re: [SR-Users] Unquoted values from #!defenv
Thank you. I’ve been using -A to set values thus far as CMD arguments
to the container’s ENTRYPOINT. If submitting a pull request, would it
be preferrable to allow #!defenv/#!defenvs to accept undefined values,
or to add new keywords like #!ifdefenv/#!ifdefenvs ?
*Ben Kaufman*
*From:* Daniel-Constantin Mierla <miconda(a)gmail.com>
*Sent:* Tuesday, December 7, 2021 2:22 AM
*To:* Ben Kaufman <bkaufman(a)bcmone.com>om>; Kamailio (SER) - Users
Mailing List <sr-users(a)lists.kamailio.org>
*Subject:* Re: [SR-Users] Unquoted values from #!defenv
The current behaviour targets the use of existing values from the
environment variables. If you need other kind of features, you can
propose pull requests. Or you can eventually have a start script that
sets defines with -A cli parameter based on env variables.
Cheers,
Daniel
On 06.12.21 21:56, Ben Kaufman wrote:
Thank you :)
A follow up question would be on the usability of the #!defenv
(and probably #!defenvs) usability with #!ifdef. In the scenario
below, if the environmental variable WITH_DEBUGGER is not defined,
then Kamailio will fail to start, thus the #!ifdef is somewhat
limited. It makes sense for scenarios where someone might toggle
the setting editing the config file, but it would be very
convenient to toggle the environmental variable instead,
particularly in containerized environments. Any thoughts on how
best to control this?
#!defenv WITH_DEBUGGER
#!ifdef WITH_DEBUGGER
loadmodule "debugger"
. . .
#!endif
*Ben Kaufman*
*From:* Daniel-Constantin Mierla <miconda(a)gmail.com>
<mailto:miconda@gmail.com>
*Sent:* Monday, December 6, 2021 3:55 AM
*To:* Kamailio (SER) - Users Mailing List
<sr-users(a)lists.kamailio.org>
<mailto:sr-users@lists.kamailio.org>; Ben Kaufman
<bkaufman(a)nexvortex.com> <mailto:bkaufman@nexvortex.com>
*Subject:* Re: [SR-Users] Unquoted values from #!defenv
Hello,
#!substdef does not set the value inside quoted string, it
replaces inside a string value, so it does not put quotes around
replacement part. So it does it it is written in the docs. There
is #!substdefs witch can create a define with quoted value.
Note that defines are standalone-token replacement, you can define
an ID to a number, to a keyword (e.g., src_ip), to a quoted string
or even a multi-line script snippet, like:
#!define IDLOOP $var(i) = 0; \
while($var(i)<5) { \
xlog("++++ $var(i)\n"); \
$var(i) = $var(i) + 1; \
}
See the core cookbook for more details.
Anyhow, as using env variable values as quoted string is useful
and setting them with quotes might look odd, I added #!defenvs:
* https://www.kamailio.org/wiki/cookbooks/devel/core#defenvs
<https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.kamailio.org%2Fwiki%2Fcookbooks%2Fdevel%2Fcore%23defenvs&data=04%7C01%7Cbkaufman%40bcmone.com%7C1aca7b0156bf4d96bc9508d9b9941bbd%7Cafc1818e7b6848568913201b9396c4fc%7C1%7C0%7C637744868075326626%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=nIrsUUO%2Bn8zUzUxCfm9T%2BqLC6HzHPIxDTS80bKGq95w%3D&reserved=0>
Cheers,
Daniel
On 30.11.21 22:40, Ben Kaufman wrote:
Hello all,
Looking for some clarification regarding quoting and !#defenv
. I understand that the example below fails because the
environmental variable HOME is not quoted, thus when used in
the xlog() call it fails. How is it possible to evaluate
and/or use the value of the environmental variable if defined
as a preprocessor variable? Looking at the documentation the
reason for this directive is “It is a simplified alternative
of using *#!substdef* with *$env(NAME)* in the replacement
part.” But #!substdef would allow setting the value inside of
a quoted string, so does it really meet that requirement?
I’m aware that I could use $env(HOME) rather than a
preprocessor directive of HOME. I’m just trying to understand
the usage of the #!defenv feature.
#!KAMAILIO
## Tested in 5.5.2
loadmodule "xlog"
loadmodule "pv"
loadmodule "evrexec"
modparam("evrexec", "exec",
"name=evrexec:timer;wait=1000;workers=1;")
#!defenv HOME
request_route{
forward();
}
event_route[evrexec:timer] {
xlog("L_N", "HOME: " + HOME + "\n");
}
*Ben Kaufman*
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9 Dec
9 Dec
10:54 a.m.
I pushed the code to enclose the value in between quotes. Can you test
and see if works now?
Cheers,
Daniel
On 08.12.21 19:07, Daniel-Constantin Mierla wrote:
I expected the quoted mode parameter does the work -- I will check and
push the update.
Regarding support for undefined env values, maybe add something like
#!trydefenv, because I find #!defenv useful at is it, to be used when
the env variable must be set for proper working of kamailio (e.g., DB
url) and fail to start if not set.
Cheers,
Daniel
On 08.12.21 17:17, Ben Kaufman wrote:
--
Daniel-Constantin Mierla -- www.asipto.com
www.twitter.com/miconda -- www.linkedin.com/in/miconda
Kamailio Advanced Training - Online
Feb 21-24, 2022 (America Timezone)
* https://www.asipto.com/sw/kamailio-advanced-training-online/
Daniel,
Is the #!defenvs feature still a work in progress? I wrote a change
to add #!defenvn and #!defenvns to allow for undefined environmental
variables, and noticed that the string quoting on #!defenvs doesn’t
do anything except log the quoting mode in /src/core/ pp_define_set().
*Ben Kaufman*
/Sr. VoIP Engineer/
P:
E: bkaufman(a)bcmone.com
24 hour client support: 855.639.6300 <tel:+18556396300>
*From:* sr-users <sr-users-bounces(a)lists.kamailio.org> *On Behalf Of
*Ben Kaufman
*Sent:* Tuesday, December 7, 2021 9:12 AM
*To:* Kamailio (SER) - Users Mailing List <sr-users(a)lists.kamailio.org>
*Subject:* Re: [SR-Users] Unquoted values from #!defenv
Thank you. I’ve been using -A to set values thus far as CMD
arguments to the container’s ENTRYPOINT. If submitting a pull
request, would it be preferrable to allow #!defenv/#!defenvs to
accept undefined values, or to add new keywords like
#!ifdefenv/#!ifdefenvs ?
*Ben Kaufman*
*From:* Daniel-Constantin Mierla <miconda(a)gmail.com>
*Sent:* Tuesday, December 7, 2021 2:22 AM
*To:* Ben Kaufman <bkaufman(a)bcmone.com>om>; Kamailio (SER) - Users
Mailing List <sr-users(a)lists.kamailio.org>
*Subject:* Re: [SR-Users] Unquoted values from #!defenv
The current behaviour targets the use of existing values from the
environment variables. If you need other kind of features, you can
propose pull requests. Or you can eventually have a start script that
sets defines with -A cli parameter based on env variables.
Cheers,
Daniel
On 06.12.21 21:56, Ben Kaufman wrote:
Thank you :)
A follow up question would be on the usability of the #!defenv
(and probably #!defenvs) usability with #!ifdef. In the scenario
below, if the environmental variable WITH_DEBUGGER is not
defined, then Kamailio will fail to start, thus the #!ifdef is
somewhat limited. It makes sense for scenarios where someone
might toggle the setting editing the config file, but it would be
very convenient to toggle the environmental variable instead,
particularly in containerized environments. Any thoughts on how
best to control this?
#!defenv WITH_DEBUGGER
#!ifdef WITH_DEBUGGER
loadmodule "debugger"
. . .
#!endif
*Ben Kaufman*
*From:* Daniel-Constantin Mierla <miconda(a)gmail.com>
<mailto:miconda@gmail.com>
*Sent:* Monday, December 6, 2021 3:55 AM
*To:* Kamailio (SER) - Users Mailing List
<sr-users(a)lists.kamailio.org>
<mailto:sr-users@lists.kamailio.org>; Ben Kaufman
<bkaufman(a)nexvortex.com> <mailto:bkaufman@nexvortex.com>
*Subject:* Re: [SR-Users] Unquoted values from #!defenv
Hello,
#!substdef does not set the value inside quoted string, it
replaces inside a string value, so it does not put quotes around
replacement part. So it does it it is written in the docs. There
is #!substdefs witch can create a define with quoted value.
Note that defines are standalone-token replacement, you can
define an ID to a number, to a keyword (e.g., src_ip), to a
quoted string or even a multi-line script snippet, like:
#!define IDLOOP $var(i) = 0; \
while($var(i)<5) { \
xlog("++++ $var(i)\n"); \
$var(i) = $var(i) + 1; \
}
See the core cookbook for more details.
Anyhow, as using env variable values as quoted string is useful
and setting them with quotes might look odd, I added #!defenvs:
* https://www.kamailio.org/wiki/cookbooks/devel/core#defenvs
<https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.kamailio.org%2Fwiki%2Fcookbooks%2Fdevel%2Fcore%23defenvs&data=04%7C01%7Cbkaufman%40bcmone.com%7C1aca7b0156bf4d96bc9508d9b9941bbd%7Cafc1818e7b6848568913201b9396c4fc%7C1%7C0%7C637744868075326626%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=nIrsUUO%2Bn8zUzUxCfm9T%2BqLC6HzHPIxDTS80bKGq95w%3D&reserved=0>
Cheers,
Daniel
On 30.11.21 22:40, Ben Kaufman wrote:
Hello all,
Looking for some clarification regarding quoting and !#defenv
. I understand that the example below fails because the
environmental variable HOME is not quoted, thus when used in
the xlog() call it fails. How is it possible to evaluate
and/or use the value of the environmental variable if defined
as a preprocessor variable? Looking at the documentation the
reason for this directive is “It is a simplified alternative
of using *#!substdef* with *$env(NAME)* in the replacement
part.” But #!substdef would allow setting the value inside of
a quoted string, so does it really meet that requirement?
I’m aware that I could use $env(HOME) rather than a
preprocessor directive of HOME. I’m just trying to
understand the usage of the #!defenv feature.
#!KAMAILIO
## Tested in 5.5.2
loadmodule "xlog"
loadmodule "pv"
loadmodule "evrexec"
modparam("evrexec", "exec",
"name=evrexec:timer;wait=1000;workers=1;")
#!defenv HOME
request_route{
forward();
}
event_route[evrexec:timer] {
xlog("L_N", "HOME: " + HOME + "\n");
}
*Ben Kaufman*
__________________________________________________________
Kamailio - Users Mailing List - Non Commercial Discussions
* sr-users(a)lists.kamailio.org
Important: keep the mailing list in the recipients, do not reply only to the
sender!
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3:57 p.m.
Thank you. It's tested and working with this simple config:
#!KAMAILIO
loadmodule "xlog"
loadmodule "pv"
loadmodule "evrexec"
modparam("evrexec", "exec",
"name=evrexec:timer;wait=1000;workers=1;")
#!defenv HOME
request_route{
forward();
}
event_route[evrexec:timer] {
xlog("L_N", "HOME: " + HOME + "\n");
}
Regards,
Kaufman
From: Daniel-Constantin Mierla <miconda(a)gmail.com>
Sent: Thursday, December 9, 2021 3:55 AM
To: Kamailio (SER) - Users Mailing List <sr-users(a)lists.kamailio.org>rg>; Ben Kaufman
<bkaufman(a)bcmone.com>
Subject: Re: [SR-Users] Unquoted values from #!defenv
I pushed the code to enclose the value in between quotes. Can you test and see if works
now?
Cheers,
Daniel
On 08.12.21 19:07, Daniel-Constantin Mierla wrote:
I expected the quoted mode parameter does the work -- I will check and push the update.
Regarding support for undefined env values, maybe add something like #!trydefenv, because
I find #!defenv useful at is it, to be used when the env variable must be set for proper
working of kamailio (e.g., DB url) and fail to start if not set.
Cheers,
Daniel
On 08.12.21 17:17, Ben Kaufman wrote:
Daniel,
Is the #!defenvs feature still a work in progress? I wrote a change to add #!defenvn and
#!defenvns to allow for undefined environmental variables, and noticed that the string
quoting on #!defenvs doesn't do anything except log the quoting mode in /src/core/
pp_define_set().
Ben Kaufman
Sr. VoIP Engineer
P:
E: bkaufman@bcmone.com<mailto:bkaufman@bcmone.com>
24 hour client support: 855.639.6300<tel:+18556396300>
From: sr-users
<sr-users-bounces@lists.kamailio.org><mailto:sr-users-bounces@lists.kamailio.org>
On Behalf Of Ben Kaufman
Sent: Tuesday, December 7, 2021 9:12 AM
To: Kamailio (SER) - Users Mailing List
<sr-users@lists.kamailio.org><mailto:sr-users@lists.kamailio.org>
Subject: Re: [SR-Users] Unquoted values from #!defenv
Thank you. I've been using -A to set values thus far as CMD arguments to the
container's ENTRYPOINT. If submitting a pull request, would it be preferrable to
allow #!defenv/#!defenvs to accept undefined values, or to add new keywords like
#!ifdefenv/#!ifdefenvs ?
Ben Kaufman
From: Daniel-Constantin Mierla <miconda@gmail.com<mailto:miconda@gmail.com>>
Sent: Tuesday, December 7, 2021 2:22 AM
To: Ben Kaufman <bkaufman@bcmone.com<mailto:bkaufman@bcmone.com>>; Kamailio
(SER) - Users Mailing List
<sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>>
Subject: Re: [SR-Users] Unquoted values from #!defenv
The current behaviour targets the use of existing values from the environment variables.
If you need other kind of features, you can propose pull requests. Or you can eventually
have a start script that sets defines with -A cli parameter based on env variables.
Cheers,
Daniel
On 06.12.21 21:56, Ben Kaufman wrote:
Thank you :)
A follow up question would be on the usability of the #!defenv (and probably #!defenvs)
usability with #!ifdef. In the scenario below, if the environmental variable
WITH_DEBUGGER is not defined, then Kamailio will fail to start, thus the #!ifdef is
somewhat limited. It makes sense for scenarios where someone might toggle the setting
editing the config file, but it would be very convenient to toggle the environmental
variable instead, particularly in containerized environments. Any thoughts on how best
to control this?
#!defenv WITH_DEBUGGER
#!ifdef WITH_DEBUGGER
loadmodule "debugger"
. . .
#!endif
Ben Kaufman
From: Daniel-Constantin Mierla <miconda@gmail.com><mailto:miconda@gmail.com>
Sent: Monday, December 6, 2021 3:55 AM
To: Kamailio (SER) - Users Mailing List
<sr-users@lists.kamailio.org><mailto:sr-users@lists.kamailio.org>; Ben Kaufman
<bkaufman@nexvortex.com><mailto:bkaufman@nexvortex.com>
Subject: Re: [SR-Users] Unquoted values from #!defenv
Hello,
#!substdef does not set the value inside quoted string, it replaces inside a string value,
so it does not put quotes around replacement part. So it does it it is written in the
docs. There is #!substdefs witch can create a define with quoted value.
Note that defines are standalone-token replacement, you can define an ID to a number, to a
keyword (e.g., src_ip), to a quoted string or even a multi-line script snippet, like:
#!define IDLOOP $var(i) = 0; \
while($var(i)<5) { \
xlog("++++ $var(i)\n"); \
$var(i) = $var(i) + 1; \
}
See the core cookbook for more details.
Anyhow, as using env variable values as quoted string is useful and setting them with
quotes might look odd, I added #!defenvs:
*
https://www.kamailio.org/wiki/cookbooks/devel/core#defenvs<https://nam11…
Cheers,
Daniel
On 30.11.21 22:40, Ben Kaufman wrote:
Hello all,
Looking for some clarification regarding quoting and !#defenv . I understand that the
example below fails because the environmental variable HOME is not quoted, thus when used
in the xlog() call it fails. How is it possible to evaluate and/or use the value of the
environmental variable if defined as a preprocessor variable? Looking at the
documentation the reason for this directive is "It is a simplified alternative of
using #!substdef with $env(NAME) in the replacement part." But #!substdef would allow
setting the value inside of a quoted string, so does it really meet that requirement?
I'm aware that I could use $env(HOME) rather than a preprocessor directive of HOME.
I'm just trying to understand the usage of the #!defenv feature.
#!KAMAILIO
## Tested in 5.5.2
loadmodule "xlog"
loadmodule "pv"
loadmodule "evrexec"
modparam("evrexec", "exec",
"name=evrexec:timer;wait=1000;workers=1;")
#!defenv HOME
request_route{
forward();
}
event_route[evrexec:timer] {
xlog("L_N", "HOME: " + HOME + "\n");
}
Ben Kaufman
__________________________________________________________
Kamailio - Users Mailing List - Non Commercial Discussions
* sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>
Important: keep the mailing list in the recipients, do not reply only to the sender!
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*
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www.twitter.com/miconda<https://nam11.safelinks.protection.outlook.com/?…
--
www.linkedin.com/in/miconda<https://nam11.safelinks.protection.outlook.c…
Kamailio Advanced Training - Online
Feb 21-24, 2022 (America Timezone)
*
https://www.asipto.com/sw/kamailio-advanced-training-online/<https://nam…
--
Daniel-Constantin Mierla --
www.asipto.com<https://nam11.safelinks.protection.outlook.com/?url=http%…
www.twitter.com/miconda<https://nam11.safelinks.protection.outlook.com/?…
--
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Kamailio Advanced Training - Online
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--
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Kamailio Advanced Training - Online
Feb 21-24, 2022 (America Timezone)
*
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www.asipto.com<https://nam11.safelinks.protection.outlook.com/?url=http%…
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5:50 p.m.
It does appear that #!devenvs subsequently has problems if the environmental variable is
already quoted, though. I'll put together an example and open a ticket for it.
From: Ben Kaufman
Sent: Thursday, December 9, 2021 8:57 AM
To: Kamailio (SER) - Users Mailing List <sr-users(a)lists.kamailio.org>
Subject: RE: [SR-Users] Unquoted values from #!defenv
Thank you. It's tested and working with this simple config:
#!KAMAILIO
loadmodule "xlog"
loadmodule "pv"
loadmodule "evrexec"
modparam("evrexec", "exec",
"name=evrexec:timer;wait=1000;workers=1;")
#!defenv HOME
request_route{
forward();
}
event_route[evrexec:timer] {
xlog("L_N", "HOME: " + HOME + "\n");
}
Regards,
Kaufman
From: Daniel-Constantin Mierla <miconda@gmail.com<mailto:miconda@gmail.com>>
Sent: Thursday, December 9, 2021 3:55 AM
To: Kamailio (SER) - Users Mailing List
<sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>>; Ben Kaufman
<bkaufman@bcmone.com<mailto:bkaufman@bcmone.com>>
Subject: Re: [SR-Users] Unquoted values from #!defenv
I pushed the code to enclose the value in between quotes. Can you test and see if works
now?
Cheers,
Daniel
On 08.12.21 19:07, Daniel-Constantin Mierla wrote:
I expected the quoted mode parameter does the work -- I will check and push the update.
Regarding support for undefined env values, maybe add something like #!trydefenv, because
I find #!defenv useful at is it, to be used when the env variable must be set for proper
working of kamailio (e.g., DB url) and fail to start if not set.
Cheers,
Daniel
On 08.12.21 17:17, Ben Kaufman wrote:
Daniel,
Is the #!defenvs feature still a work in progress? I wrote a change to add #!defenvn and
#!defenvns to allow for undefined environmental variables, and noticed that the string
quoting on #!defenvs doesn't do anything except log the quoting mode in /src/core/
pp_define_set().
Ben Kaufman
Sr. VoIP Engineer
P:
E: bkaufman@bcmone.com<mailto:bkaufman@bcmone.com>
24 hour client support: 855.639.6300<tel:+18556396300>
From: sr-users
<sr-users-bounces@lists.kamailio.org><mailto:sr-users-bounces@lists.kamailio.org>
On Behalf Of Ben Kaufman
Sent: Tuesday, December 7, 2021 9:12 AM
To: Kamailio (SER) - Users Mailing List
<sr-users@lists.kamailio.org><mailto:sr-users@lists.kamailio.org>
Subject: Re: [SR-Users] Unquoted values from #!defenv
Thank you. I've been using -A to set values thus far as CMD arguments to the
container's ENTRYPOINT. If submitting a pull request, would it be preferrable to
allow #!defenv/#!defenvs to accept undefined values, or to add new keywords like
#!ifdefenv/#!ifdefenvs ?
Ben Kaufman
From: Daniel-Constantin Mierla <miconda@gmail.com<mailto:miconda@gmail.com>>
Sent: Tuesday, December 7, 2021 2:22 AM
To: Ben Kaufman <bkaufman@bcmone.com<mailto:bkaufman@bcmone.com>>; Kamailio
(SER) - Users Mailing List
<sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>>
Subject: Re: [SR-Users] Unquoted values from #!defenv
The current behaviour targets the use of existing values from the environment variables.
If you need other kind of features, you can propose pull requests. Or you can eventually
have a start script that sets defines with -A cli parameter based on env variables.
Cheers,
Daniel
On 06.12.21 21:56, Ben Kaufman wrote:
Thank you :)
A follow up question would be on the usability of the #!defenv (and probably #!defenvs)
usability with #!ifdef. In the scenario below, if the environmental variable
WITH_DEBUGGER is not defined, then Kamailio will fail to start, thus the #!ifdef is
somewhat limited. It makes sense for scenarios where someone might toggle the setting
editing the config file, but it would be very convenient to toggle the environmental
variable instead, particularly in containerized environments. Any thoughts on how best
to control this?
#!defenv WITH_DEBUGGER
#!ifdef WITH_DEBUGGER
loadmodule "debugger"
. . .
#!endif
Ben Kaufman
From: Daniel-Constantin Mierla <miconda@gmail.com><mailto:miconda@gmail.com>
Sent: Monday, December 6, 2021 3:55 AM
To: Kamailio (SER) - Users Mailing List
<sr-users@lists.kamailio.org><mailto:sr-users@lists.kamailio.org>; Ben Kaufman
<bkaufman@nexvortex.com><mailto:bkaufman@nexvortex.com>
Subject: Re: [SR-Users] Unquoted values from #!defenv
Hello,
#!substdef does not set the value inside quoted string, it replaces inside a string value,
so it does not put quotes around replacement part. So it does it it is written in the
docs. There is #!substdefs witch can create a define with quoted value.
Note that defines are standalone-token replacement, you can define an ID to a number, to a
keyword (e.g., src_ip), to a quoted string or even a multi-line script snippet, like:
#!define IDLOOP $var(i) = 0; \
while($var(i)<5) { \
xlog("++++ $var(i)\n"); \
$var(i) = $var(i) + 1; \
}
See the core cookbook for more details.
Anyhow, as using env variable values as quoted string is useful and setting them with
quotes might look odd, I added #!defenvs:
*
https://www.kamailio.org/wiki/cookbooks/devel/core#defenvs<https://nam11…
Cheers,
Daniel
On 30.11.21 22:40, Ben Kaufman wrote:
Hello all,
Looking for some clarification regarding quoting and !#defenv . I understand that the
example below fails because the environmental variable HOME is not quoted, thus when used
in the xlog() call it fails. How is it possible to evaluate and/or use the value of the
environmental variable if defined as a preprocessor variable? Looking at the
documentation the reason for this directive is "It is a simplified alternative of
using #!substdef with $env(NAME) in the replacement part." But #!substdef would allow
setting the value inside of a quoted string, so does it really meet that requirement?
I'm aware that I could use $env(HOME) rather than a preprocessor directive of HOME.
I'm just trying to understand the usage of the #!defenv feature.
#!KAMAILIO
## Tested in 5.5.2
loadmodule "xlog"
loadmodule "pv"
loadmodule "evrexec"
modparam("evrexec", "exec",
"name=evrexec:timer;wait=1000;workers=1;")
#!defenv HOME
request_route{
forward();
}
event_route[evrexec:timer] {
xlog("L_N", "HOME: " + HOME + "\n");
}
Ben Kaufman
__________________________________________________________
Kamailio - Users Mailing List - Non Commercial Discussions
* sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>
Important: keep the mailing list in the recipients, do not reply only to the sender!
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*
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www.twitter.com/miconda<https://nam11.safelinks.protection.outlook.com/?…
--
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Kamailio Advanced Training - Online
Feb 21-24, 2022 (America Timezone)
*
https://www.asipto.com/sw/kamailio-advanced-training-online/<https://nam…
--
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--
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Kamailio Advanced Training - Online
Feb 21-24, 2022 (America Timezone)
*
https://www.asipto.com/sw/kamailio-advanced-training-online/<https://nam…
__________________________________________________________
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--
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Kamailio Advanced Training - Online
Feb 21-24, 2022 (America Timezone)
*
https://www.asipto.com/sw/kamailio-advanced-training-online/<https://nam…
--
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*
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5:59 p.m.
If the value is already quoted, then #!devenv should be used, that's the
reason there are two variants to take it as it is or surround with quotes.
Cheers,
Daniel
On 09.12.21 17:50, Ben Kaufman wrote:
It does appear that #!devenvs subsequently has problems if the
environmental variable is already quoted, though. I’ll put together
an example and open a ticket for it.
*From:* Ben Kaufman
*Sent:* Thursday, December 9, 2021 8:57 AM
*To:* Kamailio (SER) - Users Mailing List <sr-users(a)lists.kamailio.org>
*Subject:* RE: [SR-Users] Unquoted values from #!defenv
Thank you. It’s tested and working with this simple config:
#!KAMAILIO
loadmodule "xlog"
loadmodule "pv"
loadmodule "evrexec"
modparam("evrexec", "exec",
"name=evrexec:timer;wait=1000;workers=1;")
#!defenv HOME
request_route{
forward();
}
event_route[evrexec:timer] {
xlog("L_N", "HOME: " + HOME + "\n");
}
Regards,
Kaufman
*From:* Daniel-Constantin Mierla <miconda(a)gmail.com>
*Sent:* Thursday, December 9, 2021 3:55 AM
*To:* Kamailio (SER) - Users Mailing List
<sr-users(a)lists.kamailio.org>rg>; Ben Kaufman <bkaufman(a)bcmone.com>
*Subject:* Re: [SR-Users] Unquoted values from #!defenv
I pushed the code to enclose the value in between quotes. Can you test
and see if works now?
Cheers,
Daniel
On 08.12.21 19:07, Daniel-Constantin Mierla wrote:
I expected the quoted mode parameter does the work -- I will check
and push the update.
Regarding support for undefined env values, maybe add something
like #!trydefenv, because I find #!defenv useful at is it, to be
used when the env variable must be set for proper working of
kamailio (e.g., DB url) and fail to start if not set.
Cheers,
Daniel
On 08.12.21 17:17, Ben Kaufman wrote:
Daniel,
Is the #!defenvs feature still a work in progress? I wrote a
change to add #!defenvn and #!defenvns to allow for undefined
environmental variables, and noticed that the string quoting
on #!defenvs doesn’t do anything except log the quoting mode
in /src/core/ pp_define_set().
*Ben Kaufman*
/Sr. VoIP Engineer/
P:
E: bkaufman(a)bcmone.com
24 hour client support: 855.639.6300 <tel:+18556396300>
*From:* sr-users <sr-users-bounces(a)lists.kamailio.org>
<mailto:sr-users-bounces@lists.kamailio.org> *On Behalf Of
*Ben Kaufman
*Sent:* Tuesday, December 7, 2021 9:12 AM
*To:* Kamailio (SER) - Users Mailing List
<sr-users(a)lists.kamailio.org> <mailto:sr-users@lists.kamailio.org>
*Subject:* Re: [SR-Users] Unquoted values from #!defenv
Thank you. I’ve been using -A to set values thus far as CMD
arguments to the container’s ENTRYPOINT. If submitting a pull
request, would it be preferrable to allow #!defenv/#!defenvs
to accept undefined values, or to add new keywords like
#!ifdefenv/#!ifdefenvs ?
*Ben Kaufman*
*From:* Daniel-Constantin Mierla <miconda(a)gmail.com>
*Sent:* Tuesday, December 7, 2021 2:22 AM
*To:* Ben Kaufman <bkaufman(a)bcmone.com>om>; Kamailio (SER) -
Users Mailing List <sr-users(a)lists.kamailio.org>
*Subject:* Re: [SR-Users] Unquoted values from #!defenv
The current behaviour targets the use of existing values from
the environment variables. If you need other kind of features,
you can propose pull requests. Or you can eventually have a
start script that sets defines with -A cli parameter based on
env variables.
Cheers,
Daniel
On 06.12.21 21:56, Ben Kaufman wrote:
Thank you :)
A follow up question would be on the usability of the
#!defenv (and probably #!defenvs) usability with #!ifdef.
In the scenario below, if the environmental variable
WITH_DEBUGGER is not defined, then Kamailio will fail to
start, thus the #!ifdef is somewhat limited. It makes
sense for scenarios where someone might toggle the setting
editing the config file, but it would be very convenient
to toggle the environmental variable instead, particularly
in containerized environments. Any thoughts on how best
to control this?
#!defenv WITH_DEBUGGER
#!ifdef WITH_DEBUGGER
loadmodule "debugger"
. . .
#!endif
*Ben Kaufman*
*From:* Daniel-Constantin Mierla <miconda(a)gmail.com>
<mailto:miconda@gmail.com>
*Sent:* Monday, December 6, 2021 3:55 AM
*To:* Kamailio (SER) - Users Mailing List
<sr-users(a)lists.kamailio.org>
<mailto:sr-users@lists.kamailio.org>; Ben Kaufman
<bkaufman(a)nexvortex.com> <mailto:bkaufman@nexvortex.com>
*Subject:* Re: [SR-Users] Unquoted values from #!defenv
Hello,
#!substdef does not set the value inside quoted string, it
replaces inside a string value, so it does not put quotes
around replacement part. So it does it it is written in
the docs. There is #!substdefs witch can create a define
with quoted value.
Note that defines are standalone-token replacement, you
can define an ID to a number, to a keyword (e.g., src_ip),
to a quoted string or even a multi-line script snippet, like:
#!define IDLOOP $var(i) = 0; \
while($var(i)<5) { \
xlog("++++ $var(i)\n"); \
$var(i) = $var(i) + 1; \
}
See the core cookbook for more details.
Anyhow, as using env variable values as quoted string is
useful and setting them with quotes might look odd, I
added #!defenvs:
*
https://www.kamailio.org/wiki/cookbooks/devel/core#defenvs
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Cheers,
Daniel
On 30.11.21 22:40, Ben Kaufman wrote:
Hello all,
Looking for some clarification regarding quoting and
!#defenv . I understand that the example below fails
because the environmental variable HOME is not quoted,
thus when used in the xlog() call it fails. How is it
possible to evaluate and/or use the value of the
environmental variable if defined as a preprocessor
variable? Looking at the documentation the reason for
this directive is “It is a simplified alternative of
using *#!substdef* with *$env(NAME)* in the
replacement part.” But #!substdef would allow setting
the value inside of a quoted string, so does it really
meet that requirement?
I’m aware that I could use $env(HOME) rather than a
preprocessor directive of HOME. I’m just trying to
understand the usage of the #!defenv feature.
#!KAMAILIO
## Tested in 5.5.2
loadmodule "xlog"
loadmodule "pv"
loadmodule "evrexec"
modparam("evrexec", "exec",
"name=evrexec:timer;wait=1000;workers=1;")
#!defenv HOME
request_route{
forward();
}
event_route[evrexec:timer] {
xlog("L_N", "HOME: " + HOME + "\n");
}
*Ben Kaufman*
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6:01 p.m.
The example snippet you gave is with #!devenv, not with #!devenvs. Is it
what you tested in this case?
Cheers,
Daniel
On 09.12.21 15:57, Ben Kaufman wrote:
Thank you. It’s tested and working with this simple config:
#!KAMAILIO
loadmodule "xlog"
loadmodule "pv"
loadmodule "evrexec"
modparam("evrexec", "exec",
"name=evrexec:timer;wait=1000;workers=1;")
c HOME
request_route{
forward();
}
event_route[evrexec:timer] {
xlog("L_N", "HOME: " + HOME + "\n");
}
Regards,
Kaufman
*From:* Daniel-Constantin Mierla <miconda(a)gmail.com>
*Sent:* Thursday, December 9, 2021 3:55 AM
*To:* Kamailio (SER) - Users Mailing List
<sr-users(a)lists.kamailio.org>rg>; Ben Kaufman <bkaufman(a)bcmone.com>
*Subject:* Re: [SR-Users] Unquoted values from #!defenv
I pushed the code to enclose the value in between quotes. Can you test
and see if works now?
Cheers,
Daniel
On 08.12.21 19:07, Daniel-Constantin Mierla wrote:
I expected the quoted mode parameter does the work -- I will check
and push the update.
Regarding support for undefined env values, maybe add something
like #!trydefenv, because I find #!defenv useful at is it, to be
used when the env variable must be set for proper working of
kamailio (e.g., DB url) and fail to start if not set.
Cheers,
Daniel
On 08.12.21 17:17, Ben Kaufman wrote:
Daniel,
Is the #!defenvs feature still a work in progress? I wrote a
change to add #!defenvn and #!defenvns to allow for undefined
environmental variables, and noticed that the string quoting
on #!defenvs doesn’t do anything except log the quoting mode
in /src/core/ pp_define_set().
*Ben Kaufman*
/Sr. VoIP Engineer/
P:
E: bkaufman(a)bcmone.com
24 hour client support: 855.639.6300 <tel:+18556396300>
*From:* sr-users <sr-users-bounces(a)lists.kamailio.org>
<mailto:sr-users-bounces@lists.kamailio.org> *On Behalf Of
*Ben Kaufman
*Sent:* Tuesday, December 7, 2021 9:12 AM
*To:* Kamailio (SER) - Users Mailing List
<sr-users(a)lists.kamailio.org> <mailto:sr-users@lists.kamailio.org>
*Subject:* Re: [SR-Users] Unquoted values from #!defenv
Thank you. I’ve been using -A to set values thus far as CMD
arguments to the container’s ENTRYPOINT. If submitting a pull
request, would it be preferrable to allow #!defenv/#!defenvs
to accept undefined values, or to add new keywords like
#!ifdefenv/#!ifdefenvs ?
*Ben Kaufman*
*From:* Daniel-Constantin Mierla <miconda(a)gmail.com>
*Sent:* Tuesday, December 7, 2021 2:22 AM
*To:* Ben Kaufman <bkaufman(a)bcmone.com>om>; Kamailio (SER) -
Users Mailing List <sr-users(a)lists.kamailio.org>
*Subject:* Re: [SR-Users] Unquoted values from #!defenv
The current behaviour targets the use of existing values from
the environment variables. If you need other kind of features,
you can propose pull requests. Or you can eventually have a
start script that sets defines with -A cli parameter based on
env variables.
Cheers,
Daniel
On 06.12.21 21:56, Ben Kaufman wrote:
Thank you :)
A follow up question would be on the usability of the
#!defenv (and probably #!defenvs) usability with #!ifdef.
In the scenario below, if the environmental variable
WITH_DEBUGGER is not defined, then Kamailio will fail to
start, thus the #!ifdef is somewhat limited. It makes
sense for scenarios where someone might toggle the setting
editing the config file, but it would be very convenient
to toggle the environmental variable instead, particularly
in containerized environments. Any thoughts on how best
to control this?
#!defenv WITH_DEBUGGER
#!ifdef WITH_DEBUGGER
loadmodule "debugger"
. . .
#!endif
*Ben Kaufman*
*From:* Daniel-Constantin Mierla <miconda(a)gmail.com>
<mailto:miconda@gmail.com>
*Sent:* Monday, December 6, 2021 3:55 AM
*To:* Kamailio (SER) - Users Mailing List
<sr-users(a)lists.kamailio.org>
<mailto:sr-users@lists.kamailio.org>; Ben Kaufman
<bkaufman(a)nexvortex.com> <mailto:bkaufman@nexvortex.com>
*Subject:* Re: [SR-Users] Unquoted values from #!defenv
Hello,
#!substdef does not set the value inside quoted string, it
replaces inside a string value, so it does not put quotes
around replacement part. So it does it it is written in
the docs. There is #!substdefs witch can create a define
with quoted value.
Note that defines are standalone-token replacement, you
can define an ID to a number, to a keyword (e.g., src_ip),
to a quoted string or even a multi-line script snippet, like:
#!define IDLOOP $var(i) = 0; \
while($var(i)<5) { \
xlog("++++ $var(i)\n"); \
$var(i) = $var(i) + 1; \
}
See the core cookbook for more details.
Anyhow, as using env variable values as quoted string is
useful and setting them with quotes might look odd, I
added #!defenvs:
*
https://www.kamailio.org/wiki/cookbooks/devel/core#defenvs
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Daniel
On 30.11.21 22:40, Ben Kaufman wrote:
Hello all,
Looking for some clarification regarding quoting and
!#defenv . I understand that the example below fails
because the environmental variable HOME is not quoted,
thus when used in the xlog() call it fails. How is it
possible to evaluate and/or use the value of the
environmental variable if defined as a preprocessor
variable? Looking at the documentation the reason for
this directive is “It is a simplified alternative of
using *#!substdef* with *$env(NAME)* in the
replacement part.” But #!substdef would allow setting
the value inside of a quoted string, so does it really
meet that requirement?
I’m aware that I could use $env(HOME) rather than a
preprocessor directive of HOME. I’m just trying to
understand the usage of the #!defenv feature.
#!KAMAILIO
## Tested in 5.5.2
loadmodule "xlog"
loadmodule "pv"
loadmodule "evrexec"
modparam("evrexec", "exec",
"name=evrexec:timer;wait=1000;workers=1;")
#!defenv HOME
request_route{
forward();
}
event_route[evrexec:timer] {
xlog("L_N", "HOME: " + HOME + "\n");
}
*Ben Kaufman*
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6:13 p.m.
Sorry, I noticed the file discrepancy after sending the email. I did make sure to retest
with #!defenvs and it does work.
With regards to quoted/unquoted envvars, I'm not expecting that a quoted environmental
variable would do anything with the quotes, but right now, Kamailio will fail to start
when using #!defenvs with a quoted variable. If I set:
export FOO= "\"bar\"\"
and use:
#!defenvs FOO
Kamailio will fail to start. I would expect it to have literal quotes in the string.
Ben Kaufman
Sr. VoIP Engineer
P:
E: bkaufman@bcmone.com<mailto:bkaufman@bcmone.com>
24 hour client support: 855.639.6300<tel:+18556396300>
From: Daniel-Constantin Mierla <miconda(a)gmail.com>
Sent: Thursday, December 9, 2021 11:02 AM
To: Kamailio (SER) - Users Mailing List <sr-users(a)lists.kamailio.org>rg>; Ben Kaufman
<bkaufman(a)bcmone.com>
Subject: Re: [SR-Users] Unquoted values from #!defenv
The example snippet you gave is with #!devenv, not with #!devenvs. Is it what you tested
in this case?
Cheers,
Daniel
On 09.12.21 15:57, Ben Kaufman wrote:
Thank you. It's tested and working with this simple config:
#!KAMAILIO
loadmodule "xlog"
loadmodule "pv"
loadmodule "evrexec"
modparam("evrexec", "exec",
"name=evrexec:timer;wait=1000;workers=1;")
c HOME
request_route{
forward();
}
event_route[evrexec:timer] {
xlog("L_N", "HOME: " + HOME + "\n");
}
Regards,
Kaufman
From: Daniel-Constantin Mierla <miconda@gmail.com><mailto:miconda@gmail.com>
Sent: Thursday, December 9, 2021 3:55 AM
To: Kamailio (SER) - Users Mailing List
<sr-users@lists.kamailio.org><mailto:sr-users@lists.kamailio.org>; Ben Kaufman
<bkaufman@bcmone.com><mailto:bkaufman@bcmone.com>
Subject: Re: [SR-Users] Unquoted values from #!defenv
I pushed the code to enclose the value in between quotes. Can you test and see if works
now?
Cheers,
Daniel
On 08.12.21 19:07, Daniel-Constantin Mierla wrote:
I expected the quoted mode parameter does the work -- I will check and push the update.
Regarding support for undefined env values, maybe add something like #!trydefenv, because
I find #!defenv useful at is it, to be used when the env variable must be set for proper
working of kamailio (e.g., DB url) and fail to start if not set.
Cheers,
Daniel
On 08.12.21 17:17, Ben Kaufman wrote:
Daniel,
Is the #!defenvs feature still a work in progress? I wrote a change to add #!defenvn and
#!defenvns to allow for undefined environmental variables, and noticed that the string
quoting on #!defenvs doesn't do anything except log the quoting mode in /src/core/
pp_define_set().
Ben Kaufman
Sr. VoIP Engineer
P:
E: bkaufman@bcmone.com<mailto:bkaufman@bcmone.com>
24 hour client support: 855.639.6300<tel:+18556396300>
From: sr-users
<sr-users-bounces@lists.kamailio.org><mailto:sr-users-bounces@lists.kamailio.org>
On Behalf Of Ben Kaufman
Sent: Tuesday, December 7, 2021 9:12 AM
To: Kamailio (SER) - Users Mailing List
<sr-users@lists.kamailio.org><mailto:sr-users@lists.kamailio.org>
Subject: Re: [SR-Users] Unquoted values from #!defenv
Thank you. I've been using -A to set values thus far as CMD arguments to the
container's ENTRYPOINT. If submitting a pull request, would it be preferrable to
allow #!defenv/#!defenvs to accept undefined values, or to add new keywords like
#!ifdefenv/#!ifdefenvs ?
Ben Kaufman
From: Daniel-Constantin Mierla <miconda@gmail.com<mailto:miconda@gmail.com>>
Sent: Tuesday, December 7, 2021 2:22 AM
To: Ben Kaufman <bkaufman@bcmone.com<mailto:bkaufman@bcmone.com>>; Kamailio
(SER) - Users Mailing List
<sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>>
Subject: Re: [SR-Users] Unquoted values from #!defenv
The current behaviour targets the use of existing values from the environment variables.
If you need other kind of features, you can propose pull requests. Or you can eventually
have a start script that sets defines with -A cli parameter based on env variables.
Cheers,
Daniel
On 06.12.21 21:56, Ben Kaufman wrote:
Thank you :)
A follow up question would be on the usability of the #!defenv (and probably #!defenvs)
usability with #!ifdef. In the scenario below, if the environmental variable
WITH_DEBUGGER is not defined, then Kamailio will fail to start, thus the #!ifdef is
somewhat limited. It makes sense for scenarios where someone might toggle the setting
editing the config file, but it would be very convenient to toggle the environmental
variable instead, particularly in containerized environments. Any thoughts on how best
to control this?
#!defenv WITH_DEBUGGER
#!ifdef WITH_DEBUGGER
loadmodule "debugger"
. . .
#!endif
Ben Kaufman
From: Daniel-Constantin Mierla <miconda@gmail.com><mailto:miconda@gmail.com>
Sent: Monday, December 6, 2021 3:55 AM
To: Kamailio (SER) - Users Mailing List
<sr-users@lists.kamailio.org><mailto:sr-users@lists.kamailio.org>; Ben Kaufman
<bkaufman@nexvortex.com><mailto:bkaufman@nexvortex.com>
Subject: Re: [SR-Users] Unquoted values from #!defenv
Hello,
#!substdef does not set the value inside quoted string, it replaces inside a string value,
so it does not put quotes around replacement part. So it does it it is written in the
docs. There is #!substdefs witch can create a define with quoted value.
Note that defines are standalone-token replacement, you can define an ID to a number, to a
keyword (e.g., src_ip), to a quoted string or even a multi-line script snippet, like:
#!define IDLOOP $var(i) = 0; \
while($var(i)<5) { \
xlog("++++ $var(i)\n"); \
$var(i) = $var(i) + 1; \
}
See the core cookbook for more details.
Anyhow, as using env variable values as quoted string is useful and setting them with
quotes might look odd, I added #!defenvs:
*
https://www.kamailio.org/wiki/cookbooks/devel/core#defenvs<https://nam11…
Cheers,
Daniel
On 30.11.21 22:40, Ben Kaufman wrote:
Hello all,
Looking for some clarification regarding quoting and !#defenv . I understand that the
example below fails because the environmental variable HOME is not quoted, thus when used
in the xlog() call it fails. How is it possible to evaluate and/or use the value of the
environmental variable if defined as a preprocessor variable? Looking at the
documentation the reason for this directive is "It is a simplified alternative of
using #!substdef with $env(NAME) in the replacement part." But #!substdef would allow
setting the value inside of a quoted string, so does it really meet that requirement?
I'm aware that I could use $env(HOME) rather than a preprocessor directive of HOME.
I'm just trying to understand the usage of the #!defenv feature.
#!KAMAILIO
## Tested in 5.5.2
loadmodule "xlog"
loadmodule "pv"
loadmodule "evrexec"
modparam("evrexec", "exec",
"name=evrexec:timer;wait=1000;workers=1;")
#!defenv HOME
request_route{
forward();
}
event_route[evrexec:timer] {
xlog("L_N", "HOME: " + HOME + "\n");
}
Ben Kaufman
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7:36 p.m.
#!defines are preprocessor directives, think about them like copy+paste
and then config interpreter tries to understand the config content.
As one example in the wiki, the value of a define can be even a script
snippet -- see the define of IDLOOP:
* https://www.kamailio.org/wiki/cookbooks/5.5.x/core#define
Your example fails because it results in copying and surrounding the
value with quotes, so the interpreter sees:
""bar""
practically, it is empty string followed by token 'bar' and followed by
another empty string.
It is the expected behaviour, similar to what happens in C with #define
macros. One must know what sets in the value and use the appropriate
pre-processor directive.
Cheers,
Daniel
On 09.12.21 18:13, Ben Kaufman wrote:
Sorry, I noticed the file discrepancy after sending the email. I did
make sure to retest with #!defenvs and it does work.
With regards to quoted/unquoted envvars, I’m not expecting that a
quoted environmental variable would do anything with the quotes, but
right now, Kamailio will fail to start when using #!defenvs with a
quoted variable. If I set:
export FOO= "\"bar\"\"
and use:
#!defenvs FOO
Kamailio will fail to start. I would expect it to have literal quotes
in the string.
*Ben Kaufman*
/Sr. VoIP Engineer/
P:
E: bkaufman(a)bcmone.com
24 hour client support: 855.639.6300 <tel:+18556396300>
*From:* Daniel-Constantin Mierla <miconda(a)gmail.com>
*Sent:* Thursday, December 9, 2021 11:02 AM
*To:* Kamailio (SER) - Users Mailing List
<sr-users(a)lists.kamailio.org>rg>; Ben Kaufman <bkaufman(a)bcmone.com>
*Subject:* Re: [SR-Users] Unquoted values from #!defenv
The example snippet you gave is with #!devenv, not with #!devenvs. Is
it what you tested in this case?
Cheers,
Daniel
On 09.12.21 15:57, Ben Kaufman wrote:
Thank you. It’s tested and working with this simple config:
#!KAMAILIO
loadmodule "xlog"
loadmodule "pv"
loadmodule "evrexec"
modparam("evrexec", "exec",
"name=evrexec:timer;wait=1000;workers=1;")
c HOME
request_route{
forward();
}
event_route[evrexec:timer] {
xlog("L_N", "HOME: " + HOME + "\n");
}
Regards,
Kaufman
*From:* Daniel-Constantin Mierla <miconda(a)gmail.com>
<mailto:miconda@gmail.com>
*Sent:* Thursday, December 9, 2021 3:55 AM
*To:* Kamailio (SER) - Users Mailing List
<sr-users(a)lists.kamailio.org>
<mailto:sr-users@lists.kamailio.org>; Ben Kaufman
<bkaufman(a)bcmone.com> <mailto:bkaufman@bcmone.com>
*Subject:* Re: [SR-Users] Unquoted values from #!defenv
I pushed the code to enclose the value in between quotes. Can you
test and see if works now?
Cheers,
Daniel
On 08.12.21 19:07, Daniel-Constantin Mierla wrote:
I expected the quoted mode parameter does the work -- I will
check and push the update.
Regarding support for undefined env values, maybe add
something like #!trydefenv, because I find #!defenv useful at
is it, to be used when the env variable must be set for proper
working of kamailio (e.g., DB url) and fail to start if not set.
Cheers,
Daniel
On 08.12.21 17:17, Ben Kaufman wrote:
Daniel,
Is the #!defenvs feature still a work in progress? I wrote
a change to add #!defenvn and #!defenvns to allow for
undefined environmental variables, and noticed that the
string quoting on #!defenvs doesn’t do anything except log
the quoting mode in /src/core/ pp_define_set().
*Ben Kaufman*
/Sr. VoIP Engineer/
P:
E: bkaufman(a)bcmone.com
24 hour client support: 855.639.6300 <tel:+18556396300>
*From:* sr-users <sr-users-bounces(a)lists.kamailio.org>
<mailto:sr-users-bounces@lists.kamailio.org> *On Behalf Of
*Ben Kaufman
*Sent:* Tuesday, December 7, 2021 9:12 AM
*To:* Kamailio (SER) - Users Mailing List
<sr-users(a)lists.kamailio.org>
<mailto:sr-users@lists.kamailio.org>
*Subject:* Re: [SR-Users] Unquoted values from #!defenv
Thank you. I’ve been using -A to set values thus far as
CMD arguments to the container’s ENTRYPOINT. If
submitting a pull request, would it be preferrable to
allow #!defenv/#!defenvs to accept undefined values, or to
add new keywords like #!ifdefenv/#!ifdefenvs ?
*Ben Kaufman*
*From:* Daniel-Constantin Mierla <miconda(a)gmail.com>
*Sent:* Tuesday, December 7, 2021 2:22 AM
*To:* Ben Kaufman <bkaufman(a)bcmone.com>om>; Kamailio (SER) -
Users Mailing List <sr-users(a)lists.kamailio.org>
*Subject:* Re: [SR-Users] Unquoted values from #!defenv
The current behaviour targets the use of existing values
from the environment variables. If you need other kind of
features, you can propose pull requests. Or you can
eventually have a start script that sets defines with -A
cli parameter based on env variables.
Cheers,
Daniel
On 06.12.21 21:56, Ben Kaufman wrote:
Thank you :)
A follow up question would be on the usability of the
#!defenv (and probably #!defenvs) usability with
#!ifdef. In the scenario below, if the environmental
variable WITH_DEBUGGER is not defined, then Kamailio
will fail to start, thus the #!ifdef is somewhat
limited. It makes sense for scenarios where someone
might toggle the setting editing the config file, but
it would be very convenient to toggle the
environmental variable instead, particularly in
containerized environments. Any thoughts on how best
to control this?
#!defenv WITH_DEBUGGER
#!ifdef WITH_DEBUGGER
loadmodule "debugger"
. . .
#!endif
*Ben Kaufman*
*From:* Daniel-Constantin Mierla <miconda(a)gmail.com>
<mailto:miconda@gmail.com>
*Sent:* Monday, December 6, 2021 3:55 AM
*To:* Kamailio (SER) - Users Mailing List
<sr-users(a)lists.kamailio.org>
<mailto:sr-users@lists.kamailio.org>; Ben Kaufman
<bkaufman(a)nexvortex.com> <mailto:bkaufman@nexvortex.com>
*Subject:* Re: [SR-Users] Unquoted values from #!defenv
Hello,
#!substdef does not set the value inside quoted
string, it replaces inside a string value, so it does
not put quotes around replacement part. So it does it
it is written in the docs. There is #!substdefs witch
can create a define with quoted value.
Note that defines are standalone-token replacement,
you can define an ID to a number, to a keyword (e.g.,
src_ip), to a quoted string or even a multi-line
script snippet, like:
#!define IDLOOP $var(i) = 0; \
while($var(i)<5) { \
xlog("++++ $var(i)\n"); \
$var(i) = $var(i) + 1; \
}
See the core cookbook for more details.
Anyhow, as using env variable values as quoted string
is useful and setting them with quotes might look odd,
I added #!defenvs:
*
https://www.kamailio.org/wiki/cookbooks/devel/core#defenvs
<https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.kamailio.org%2Fwiki%2Fcookbooks%2Fdevel%2Fcore%23defenvs&data=04%7C01%7Cbkaufman%40bcmone.com%7Cd99fd09975ff46f9a2a808d9bb358e16%7Cafc1818e7b6848568913201b9396c4fc%7C1%7C0%7C637746660990886102%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=rzHyN6OflNNZgm1%2BnXypY01FK1VzlvMnQlOLrWJKOsQ%3D&reserved=0>
Cheers,
Daniel
On 30.11.21 22:40, Ben Kaufman wrote:
Hello all,
Looking for some clarification regarding quoting
and !#defenv . I understand that the example
below fails because the environmental variable
HOME is not quoted, thus when used in the xlog()
call it fails. How is it possible to evaluate
and/or use the value of the environmental variable
if defined as a preprocessor variable? Looking at
the documentation the reason for this directive is
“It is a simplified alternative of
using *#!substdef* with *$env(NAME)* in the
replacement part.” But #!substdef would allow
setting the value inside of a quoted string, so
does it really meet that requirement?
I’m aware that I could use $env(HOME) rather than
a preprocessor directive of HOME. I’m just trying
to understand the usage of the #!defenv feature.
#!KAMAILIO
## Tested in 5.5.2
loadmodule "xlog"
loadmodule "pv"
loadmodule "evrexec"
modparam("evrexec", "exec",
"name=evrexec:timer;wait=1000;workers=1;")
#!defenv HOME
request_route{
forward();
}
event_route[evrexec:timer] {
xlog("L_N", "HOME: " + HOME +
"\n");
}
*Ben Kaufman*
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7:39 p.m.
it is empty string followed by token 'bar' and
followed by another empty string.
OK. It makes perfect sense when viewed that way.
Ben Kaufman
Sr. VoIP Engineer
P:
E: bkaufman@bcmone.com<mailto:bkaufman@bcmone.com>
24 hour client support: 855.639.6300<tel:+18556396300>
From: Daniel-Constantin Mierla <miconda(a)gmail.com>
Sent: Thursday, December 9, 2021 12:37 PM
To: Ben Kaufman <bkaufman(a)bcmone.com>om>; Kamailio (SER) - Users Mailing List
<sr-users(a)lists.kamailio.org>
Subject: Re: [SR-Users] Unquoted values from #!defenv
#!defines are preprocessor directives, think about them like copy+paste and then config
interpreter tries to understand the config content.
As one example in the wiki, the value of a define can be even a script snippet -- see the
define of IDLOOP:
*
https://www.kamailio.org/wiki/cookbooks/5.5.x/core#define<https://nam11.…
Your example fails because it results in copying and surrounding the value with quotes, so
the interpreter sees:
""bar""
practically, it is empty string followed by token 'bar' and followed by another
empty string.
It is the expected behaviour, similar to what happens in C with #define macros. One must
know what sets in the value and use the appropriate pre-processor directive.
Cheers,
Daniel
On 09.12.21 18:13, Ben Kaufman wrote:
Sorry, I noticed the file discrepancy after sending the email. I did make sure to retest
with #!defenvs and it does work.
With regards to quoted/unquoted envvars, I'm not expecting that a quoted environmental
variable would do anything with the quotes, but right now, Kamailio will fail to start
when using #!defenvs with a quoted variable. If I set:
export FOO= "\"bar\"\"
and use:
#!defenvs FOO
Kamailio will fail to start. I would expect it to have literal quotes in the string.
Ben Kaufman
Sr. VoIP Engineer
P:
E: bkaufman@bcmone.com<mailto:bkaufman@bcmone.com>
24 hour client support: 855.639.6300<tel:+18556396300>
From: Daniel-Constantin Mierla <miconda@gmail.com><mailto:miconda@gmail.com>
Sent: Thursday, December 9, 2021 11:02 AM
To: Kamailio (SER) - Users Mailing List
<sr-users@lists.kamailio.org><mailto:sr-users@lists.kamailio.org>; Ben Kaufman
<bkaufman@bcmone.com><mailto:bkaufman@bcmone.com>
Subject: Re: [SR-Users] Unquoted values from #!defenv
The example snippet you gave is with #!devenv, not with #!devenvs. Is it what you tested
in this case?
Cheers,
Daniel
On 09.12.21 15:57, Ben Kaufman wrote:
Thank you. It's tested and working with this simple config:
#!KAMAILIO
loadmodule "xlog"
loadmodule "pv"
loadmodule "evrexec"
modparam("evrexec", "exec",
"name=evrexec:timer;wait=1000;workers=1;")
c HOME
request_route{
forward();
}
event_route[evrexec:timer] {
xlog("L_N", "HOME: " + HOME + "\n");
}
Regards,
Kaufman
From: Daniel-Constantin Mierla <miconda@gmail.com><mailto:miconda@gmail.com>
Sent: Thursday, December 9, 2021 3:55 AM
To: Kamailio (SER) - Users Mailing List
<sr-users@lists.kamailio.org><mailto:sr-users@lists.kamailio.org>; Ben Kaufman
<bkaufman@bcmone.com><mailto:bkaufman@bcmone.com>
Subject: Re: [SR-Users] Unquoted values from #!defenv
I pushed the code to enclose the value in between quotes. Can you test and see if works
now?
Cheers,
Daniel
On 08.12.21 19:07, Daniel-Constantin Mierla wrote:
I expected the quoted mode parameter does the work -- I will check and push the update.
Regarding support for undefined env values, maybe add something like #!trydefenv, because
I find #!defenv useful at is it, to be used when the env variable must be set for proper
working of kamailio (e.g., DB url) and fail to start if not set.
Cheers,
Daniel
On 08.12.21 17:17, Ben Kaufman wrote:
Daniel,
Is the #!defenvs feature still a work in progress? I wrote a change to add #!defenvn and
#!defenvns to allow for undefined environmental variables, and noticed that the string
quoting on #!defenvs doesn't do anything except log the quoting mode in /src/core/
pp_define_set().
Ben Kaufman
Sr. VoIP Engineer
P:
E: bkaufman@bcmone.com<mailto:bkaufman@bcmone.com>
24 hour client support: 855.639.6300<tel:+18556396300>
From: sr-users
<sr-users-bounces@lists.kamailio.org><mailto:sr-users-bounces@lists.kamailio.org>
On Behalf Of Ben Kaufman
Sent: Tuesday, December 7, 2021 9:12 AM
To: Kamailio (SER) - Users Mailing List
<sr-users@lists.kamailio.org><mailto:sr-users@lists.kamailio.org>
Subject: Re: [SR-Users] Unquoted values from #!defenv
Thank you. I've been using -A to set values thus far as CMD arguments to the
container's ENTRYPOINT. If submitting a pull request, would it be preferrable to
allow #!defenv/#!defenvs to accept undefined values, or to add new keywords like
#!ifdefenv/#!ifdefenvs ?
Ben Kaufman
From: Daniel-Constantin Mierla <miconda@gmail.com<mailto:miconda@gmail.com>>
Sent: Tuesday, December 7, 2021 2:22 AM
To: Ben Kaufman <bkaufman@bcmone.com<mailto:bkaufman@bcmone.com>>; Kamailio
(SER) - Users Mailing List
<sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>>
Subject: Re: [SR-Users] Unquoted values from #!defenv
The current behaviour targets the use of existing values from the environment variables.
If you need other kind of features, you can propose pull requests. Or you can eventually
have a start script that sets defines with -A cli parameter based on env variables.
Cheers,
Daniel
On 06.12.21 21:56, Ben Kaufman wrote:
Thank you :)
A follow up question would be on the usability of the #!defenv (and probably #!defenvs)
usability with #!ifdef. In the scenario below, if the environmental variable
WITH_DEBUGGER is not defined, then Kamailio will fail to start, thus the #!ifdef is
somewhat limited. It makes sense for scenarios where someone might toggle the setting
editing the config file, but it would be very convenient to toggle the environmental
variable instead, particularly in containerized environments. Any thoughts on how best
to control this?
#!defenv WITH_DEBUGGER
#!ifdef WITH_DEBUGGER
loadmodule "debugger"
. . .
#!endif
Ben Kaufman
From: Daniel-Constantin Mierla <miconda@gmail.com><mailto:miconda@gmail.com>
Sent: Monday, December 6, 2021 3:55 AM
To: Kamailio (SER) - Users Mailing List
<sr-users@lists.kamailio.org><mailto:sr-users@lists.kamailio.org>; Ben Kaufman
<bkaufman@nexvortex.com><mailto:bkaufman@nexvortex.com>
Subject: Re: [SR-Users] Unquoted values from #!defenv
Hello,
#!substdef does not set the value inside quoted string, it replaces inside a string value,
so it does not put quotes around replacement part. So it does it it is written in the
docs. There is #!substdefs witch can create a define with quoted value.
Note that defines are standalone-token replacement, you can define an ID to a number, to a
keyword (e.g., src_ip), to a quoted string or even a multi-line script snippet, like:
#!define IDLOOP $var(i) = 0; \
while($var(i)<5) { \
xlog("++++ $var(i)\n"); \
$var(i) = $var(i) + 1; \
}
See the core cookbook for more details.
Anyhow, as using env variable values as quoted string is useful and setting them with
quotes might look odd, I added #!defenvs:
*
https://www.kamailio.org/wiki/cookbooks/devel/core#defenvs<https://nam11…
Cheers,
Daniel
On 30.11.21 22:40, Ben Kaufman wrote:
Hello all,
Looking for some clarification regarding quoting and !#defenv . I understand that the
example below fails because the environmental variable HOME is not quoted, thus when used
in the xlog() call it fails. How is it possible to evaluate and/or use the value of the
environmental variable if defined as a preprocessor variable? Looking at the
documentation the reason for this directive is "It is a simplified alternative of
using #!substdef with $env(NAME) in the replacement part." But #!substdef would allow
setting the value inside of a quoted string, so does it really meet that requirement?
I'm aware that I could use $env(HOME) rather than a preprocessor directive of HOME.
I'm just trying to understand the usage of the #!defenv feature.
#!KAMAILIO
## Tested in 5.5.2
loadmodule "xlog"
loadmodule "pv"
loadmodule "evrexec"
modparam("evrexec", "exec",
"name=evrexec:timer;wait=1000;workers=1;")
#!defenv HOME
request_route{
forward();
}
event_route[evrexec:timer] {
xlog("L_N", "HOME: " + HOME + "\n");
}
Ben Kaufman
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10:27 p.m.
And hindsight is always 20/20. The initial question was about this:
!!defenv HOME
. . .
event_route[evrexec:timer] {
xlog("L_N", "HOME: " + HOME + "\n");
}
$def(HOME) would work.
Ben Kaufman
Sr. VoIP Engineer
P:
E: bkaufman@bcmone.com<mailto:bkaufman@bcmone.com>
24 hour client support: 855.639.6300<tel:+18556396300>
From: Daniel-Constantin Mierla <miconda(a)gmail.com>
Sent: Thursday, December 9, 2021 12:37 PM
To: Ben Kaufman <bkaufman(a)bcmone.com>om>; Kamailio (SER) - Users Mailing List
<sr-users(a)lists.kamailio.org>
Subject: Re: [SR-Users] Unquoted values from #!defenv
#!defines are preprocessor directives, think about them like copy+paste and then config
interpreter tries to understand the config content.
As one example in the wiki, the value of a define can be even a script snippet -- see the
define of IDLOOP:
*
https://www.kamailio.org/wiki/cookbooks/5.5.x/core#define<https://nam11.…
Your example fails because it results in copying and surrounding the value with quotes, so
the interpreter sees:
""bar""
practically, it is empty string followed by token 'bar' and followed by another
empty string.
It is the expected behaviour, similar to what happens in C with #define macros. One must
know what sets in the value and use the appropriate pre-processor directive.
Cheers,
Daniel
On 09.12.21 18:13, Ben Kaufman wrote:
Sorry, I noticed the file discrepancy after sending the email. I did make sure to retest
with #!defenvs and it does work.
With regards to quoted/unquoted envvars, I'm not expecting that a quoted environmental
variable would do anything with the quotes, but right now, Kamailio will fail to start
when using #!defenvs with a quoted variable. If I set:
export FOO= "\"bar\"\"
and use:
#!defenvs FOO
Kamailio will fail to start. I would expect it to have literal quotes in the string.
Ben Kaufman
Sr. VoIP Engineer
P:
E: bkaufman@bcmone.com<mailto:bkaufman@bcmone.com>
24 hour client support: 855.639.6300<tel:+18556396300>
From: Daniel-Constantin Mierla <miconda@gmail.com><mailto:miconda@gmail.com>
Sent: Thursday, December 9, 2021 11:02 AM
To: Kamailio (SER) - Users Mailing List
<sr-users@lists.kamailio.org><mailto:sr-users@lists.kamailio.org>; Ben Kaufman
<bkaufman@bcmone.com><mailto:bkaufman@bcmone.com>
Subject: Re: [SR-Users] Unquoted values from #!defenv
The example snippet you gave is with #!devenv, not with #!devenvs. Is it what you tested
in this case?
Cheers,
Daniel
On 09.12.21 15:57, Ben Kaufman wrote:
Thank you. It's tested and working with this simple config:
#!KAMAILIO
loadmodule "xlog"
loadmodule "pv"
loadmodule "evrexec"
modparam("evrexec", "exec",
"name=evrexec:timer;wait=1000;workers=1;")
c HOME
request_route{
forward();
}
event_route[evrexec:timer] {
xlog("L_N", "HOME: " + HOME + "\n");
}
Regards,
Kaufman
From: Daniel-Constantin Mierla <miconda@gmail.com><mailto:miconda@gmail.com>
Sent: Thursday, December 9, 2021 3:55 AM
To: Kamailio (SER) - Users Mailing List
<sr-users@lists.kamailio.org><mailto:sr-users@lists.kamailio.org>; Ben Kaufman
<bkaufman@bcmone.com><mailto:bkaufman@bcmone.com>
Subject: Re: [SR-Users] Unquoted values from #!defenv
I pushed the code to enclose the value in between quotes. Can you test and see if works
now?
Cheers,
Daniel
On 08.12.21 19:07, Daniel-Constantin Mierla wrote:
I expected the quoted mode parameter does the work -- I will check and push the update.
Regarding support for undefined env values, maybe add something like #!trydefenv, because
I find #!defenv useful at is it, to be used when the env variable must be set for proper
working of kamailio (e.g., DB url) and fail to start if not set.
Cheers,
Daniel
On 08.12.21 17:17, Ben Kaufman wrote:
Daniel,
Is the #!defenvs feature still a work in progress? I wrote a change to add #!defenvn and
#!defenvns to allow for undefined environmental variables, and noticed that the string
quoting on #!defenvs doesn't do anything except log the quoting mode in /src/core/
pp_define_set().
Ben Kaufman
Sr. VoIP Engineer
P:
E: bkaufman@bcmone.com<mailto:bkaufman@bcmone.com>
24 hour client support: 855.639.6300<tel:+18556396300>
From: sr-users
<sr-users-bounces@lists.kamailio.org><mailto:sr-users-bounces@lists.kamailio.org>
On Behalf Of Ben Kaufman
Sent: Tuesday, December 7, 2021 9:12 AM
To: Kamailio (SER) - Users Mailing List
<sr-users@lists.kamailio.org><mailto:sr-users@lists.kamailio.org>
Subject: Re: [SR-Users] Unquoted values from #!defenv
Thank you. I've been using -A to set values thus far as CMD arguments to the
container's ENTRYPOINT. If submitting a pull request, would it be preferrable to
allow #!defenv/#!defenvs to accept undefined values, or to add new keywords like
#!ifdefenv/#!ifdefenvs ?
Ben Kaufman
From: Daniel-Constantin Mierla <miconda@gmail.com<mailto:miconda@gmail.com>>
Sent: Tuesday, December 7, 2021 2:22 AM
To: Ben Kaufman <bkaufman@bcmone.com<mailto:bkaufman@bcmone.com>>; Kamailio
(SER) - Users Mailing List
<sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>>
Subject: Re: [SR-Users] Unquoted values from #!defenv
The current behaviour targets the use of existing values from the environment variables.
If you need other kind of features, you can propose pull requests. Or you can eventually
have a start script that sets defines with -A cli parameter based on env variables.
Cheers,
Daniel
On 06.12.21 21:56, Ben Kaufman wrote:
Thank you :)
A follow up question would be on the usability of the #!defenv (and probably #!defenvs)
usability with #!ifdef. In the scenario below, if the environmental variable
WITH_DEBUGGER is not defined, then Kamailio will fail to start, thus the #!ifdef is
somewhat limited. It makes sense for scenarios where someone might toggle the setting
editing the config file, but it would be very convenient to toggle the environmental
variable instead, particularly in containerized environments. Any thoughts on how best
to control this?
#!defenv WITH_DEBUGGER
#!ifdef WITH_DEBUGGER
loadmodule "debugger"
. . .
#!endif
Ben Kaufman
From: Daniel-Constantin Mierla <miconda@gmail.com><mailto:miconda@gmail.com>
Sent: Monday, December 6, 2021 3:55 AM
To: Kamailio (SER) - Users Mailing List
<sr-users@lists.kamailio.org><mailto:sr-users@lists.kamailio.org>; Ben Kaufman
<bkaufman@nexvortex.com><mailto:bkaufman@nexvortex.com>
Subject: Re: [SR-Users] Unquoted values from #!defenv
Hello,
#!substdef does not set the value inside quoted string, it replaces inside a string value,
so it does not put quotes around replacement part. So it does it it is written in the
docs. There is #!substdefs witch can create a define with quoted value.
Note that defines are standalone-token replacement, you can define an ID to a number, to a
keyword (e.g., src_ip), to a quoted string or even a multi-line script snippet, like:
#!define IDLOOP $var(i) = 0; \
while($var(i)<5) { \
xlog("++++ $var(i)\n"); \
$var(i) = $var(i) + 1; \
}
See the core cookbook for more details.
Anyhow, as using env variable values as quoted string is useful and setting them with
quotes might look odd, I added #!defenvs:
*
https://www.kamailio.org/wiki/cookbooks/devel/core#defenvs<https://nam11…
Cheers,
Daniel
On 30.11.21 22:40, Ben Kaufman wrote:
Hello all,
Looking for some clarification regarding quoting and !#defenv . I understand that the
example below fails because the environmental variable HOME is not quoted, thus when used
in the xlog() call it fails. How is it possible to evaluate and/or use the value of the
environmental variable if defined as a preprocessor variable? Looking at the
documentation the reason for this directive is "It is a simplified alternative of
using #!substdef with $env(NAME) in the replacement part." But #!substdef would allow
setting the value inside of a quoted string, so does it really meet that requirement?
I'm aware that I could use $env(HOME) rather than a preprocessor directive of HOME.
I'm just trying to understand the usage of the #!defenv feature.
#!KAMAILIO
## Tested in 5.5.2
loadmodule "xlog"
loadmodule "pv"
loadmodule "evrexec"
modparam("evrexec", "exec",
"name=evrexec:timer;wait=1000;workers=1;")
#!defenv HOME
request_route{
forward();
}
event_route[evrexec:timer] {
xlog("L_N", "HOME: " + HOME + "\n");
}
Ben Kaufman
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