Hi list, I'm testing permissions module with kamailio 5.1.1 and I was struggling with regular expressions in trusted requests part of module.
I noticed that 9[0-9]{4} doesn't work as expected so I had to change it for 9[0-9][0-9][0-9][0-9] to work.
Is it supposed to be like that?
Is there other way in this module to simplify the expression since it is not accepting the POSIX way?
Thanks, Paulo
Hello,
On 09.02.18 12:25, Paulo Ferreira wrote:
Hi list, I'm testing permissions module with kamailio 5.1.1 and I was struggling with regular expressions in trusted requests part of module.
I noticed that 9[0-9]{4} doesn't work as expected so I had to change it for 9[0-9][0-9][0-9][0-9] to work.
Is it supposed to be like that?
Is there other way in this module to simplify the expression since it is not accepting the POSIX way?
it should be postfix regexp, at a matter of fact, the input is passed to the regexp implementation in libc, it is not written from scratch by kamailio. I have seen in the past some situations that a regexp didn't work as expect on various versions of operating systems.
Can you try and see if 9([0-9]){4} works?
Otherwise, try with debug=3 in kamailio.cfg and see if you can spot some useful debug messages.
Cheers, Daniel
On Fri, 2018-02-09 at 13:36 +0100, Daniel-Constantin Mierla wrote:
Hello,
On 09.02.18 12:25, Paulo Ferreira wrote:
Hi list, I'm testing permissions module with kamailio 5.1.1 and I was struggling with regular expressions in trusted requests part of module.
I noticed that 9[0-9]{4} doesn't work as expected so I had to change it for 9[0-9][0-9][0-9][0-9] to work.
Is it supposed to be like that?
Is there other way in this module to simplify the expression since it is not accepting the POSIX way?
it should be postfix regexp, at a matter of fact, the input is passed to the regexp implementation in libc, it is not written from scratch by kamailio. I have seen in the past some situations that a regexp didn't work as expect on various versions of operating systems.
Can you try and see if 9([0-9]){4} works?
I tried and didn't work.
Otherwise, try with debug=3 in kamailio.cfg and see if you can spot some useful debug messages.
I tried before attempting to discover what was wrong with the expression and no useful messages regarding this.
Regards, Paulo
Cheers, Daniel
On 09.02.18 14:19, Paulo Ferreira wrote:
On Fri, 2018-02-09 at 13:36 +0100, Daniel-Constantin Mierla wrote:
Hello,
On 09.02.18 12:25, Paulo Ferreira wrote:
Hi list, I'm testing permissions module with kamailio 5.1.1 and I was struggling with regular expressions in trusted requests part of module.
I noticed that 9[0-9]{4} doesn't work as expected so I had to change it for 9[0-9][0-9][0-9][0-9] to work.
Is it supposed to be like that?
Is there other way in this module to simplify the expression since it is not accepting the POSIX way?
it should be postfix regexp, at a matter of fact, the input is passed to the regexp implementation in libc, it is not written from scratch by kamailio. I have seen in the past some situations that a regexp didn't work as expect on various versions of operating systems.
Can you try and see if 9([0-9]){4} works?
I tried and didn't work.
Otherwise, try with debug=3 in kamailio.cfg and see if you can spot some useful debug messages.
I tried before attempting to discover what was wrong with the expression and no useful messages regarding this.
Can you try in kamailio.cfg:
$var(x) = "912345678"; if($var(x) =~ "9[0-9]{4}") { xlog("regexp matched\n"); }
Same regexp library is used. If this one works, then loading the value from trusted might have some issues.
Cheers, Daniel
Hi,
On Fri, 2018-02-09 at 14:27 +0100, Daniel-Constantin Mierla wrote:
On 09.02.18 14:19, Paulo Ferreira wrote:
On Fri, 2018-02-09 at 13:36 +0100, Daniel-Constantin Mierla wrote:
Hello,
On 09.02.18 12:25, Paulo Ferreira wrote:
Hi list, I'm testing permissions module with kamailio 5.1.1 and I was struggling with regular expressions in trusted requests part of module.
I noticed that 9[0-9]{4} doesn't work as expected so I had to change it for 9[0-9][0-9][0-9][0-9] to work.
Is it supposed to be like that?
Is there other way in this module to simplify the expression since it is not accepting the POSIX way?
it should be postfix regexp, at a matter of fact, the input is passed to the regexp implementation in libc, it is not written from scratch by kamailio. I have seen in the past some situations that a regexp didn't work as expect on various versions of operating systems.
Can you try and see if 9([0-9]){4} works?
I tried and didn't work.
Otherwise, try with debug=3 in kamailio.cfg and see if you can spot some useful debug messages.
I tried before attempting to discover what was wrong with the expression and no useful messages regarding this.
Can you try in kamailio.cfg:
$var(x) = "912345678"; if($var(x) =~ "9[0-9]{4}") { xlog("regexp matched\n"); }
Same regexp library is used. If this one works, then loading the value from trusted might have some issues.
Worked as expected:
kamailio[22093]: ERROR: <script>: regexp 9[0-9]{4} matched
So it seems something with trusted.
Regards, PF
Cheers, Daniel
-
Daniel-Constantin Mierla -
Paulo Ferreira