[SR-Users] $(hdr(name)[N]) question

[Daniel-Constantin Mierla]

On 25/04/14 16:15, Juha Heinanen wrote:
> Juha Heinanen writes:
>
>> wiki was this related to $(hdr(name)[N]):
>>
>>    If [N] is omitted then the body of the first header is printed. The
>>    first header is got when N=0, for the second N=1, a.s.o. In case of a
>>    comma-separated multi-body headers, it returns all the bodies,
>>    comma-separated.
>>
>> i don't understand the last sentence. how can i get all bodies of all
>> headers of name=x as a comma separated list?
> perhaps the above "In case" sentence should read:
>
>    In case of comma-separated multi-body headers, $(hdr(name)[*]) returns
>    all the bodies, comma-separated.
>
> while testing this, i found a bug.  when incoming request has
>
> Test: <sip:user1 at foo.bar>.
> Test: <sip:user2 at foo.bar>,<sip:user3 at foo.bar>.
>
> xlog("L_INFO", "Test '$(hdr(test)[*])'\n");
>
> produces:
>
> Apr 25 17:11:37 siika /usr/sbin/sip-proxy[9801]: INFO: Test '<sip:user1 at foo.bar>, <sip:user2 at foo.bar>,<sip:user3 at foo.bar>'
>
> the bug is the extra space char after first comma.
I guess the $hdr(X[*]) uses comma-space for separation (haven't checked 
the sources). In your example, the second header test has two values in 
one line and $hdr(...) is simply returning all of them.

If you would have:

Test: <sip:user1 at foo.bar>.
Test: <sip:user2 at foo.bar>,<sip:user3 at foo.bar>.
Test: <sip:user4 at foo.bar>.
Probably the result would be:

'<sip:user1 at foo.bar>, <sip:user2 at foo.bar>,<sip:user3 at foo.bar>, 
<sip:user4 at foo.bar>'

Cheers,
Daniel

-- 
Daniel-Constantin Mierla - http://www.asipto.com
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