Re: [asterisk-users] Parsing custom SIP headers
Steve Howes wrote: > On 1 Dec 2009, at 09:20, Benny Amorsen wrote: >> I do believe that we have run out of brackets... > > Could always do it vertically and useV and ^ ;) And before you know it, we'll be here: http://www.catonmat.net/blog/secret-perl-operators/ :) -- Alex Balashov - Principal Evariste Systems Web : http://www.evaristesys.com/ Tel : (+1) (678) 954-0670 Direct : (+1) (678) 954-0671 ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] Parsing custom SIP headers
On 1 Dec 2009, at 09:20, Benny Amorsen wrote: > I do believe that we have run out of brackets... Could always do it vertically and useV and ^ ;) S ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] Parsing custom SIP headers
Philipp Kempgen writes: > Just to be sure: Is there a dialplan function in Asterisk that > parses custom "name-addr"-style SIP headers for me? No. > so I guess SIP_PARSE_HEADER() would need an index argument, just > like SIP_HEADER(). Yes, Asterisk array handling leaves a bit to be desired as well. A good start would be first class arrays in the dial plan, but that would probably involve adding another type of brackets, and I do believe that we have run out of brackets... /Benny ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] Parsing custom SIP headers
Leif Madsen schrieb: > Philipp Kempgen wrote: >> Just to be sure: Is there a dialplan function in Asterisk that >> parses custom "name-addr"-style SIP headers for me? > > Try this: https://issues.asterisk.org/view.php?id=16268 Thanks but I don't see the connection. Philipp Kempgen -- AMOOMA GmbH - Bachstr. 126 - 56566 Neuwied -> http://www.amooma.de Geschäftsführer: Stefan Wintermeyer, Handelsregister: Neuwied B14998 Asterisk: http://the-asterisk-book.com - http://das-asterisk-buch.de Videos of the AMOOCON VoIP conference 2009 -> http://www.amoocon.de -- ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] Parsing custom SIP headers
Philipp Kempgen wrote: > Just to be sure: Is there a dialplan function in Asterisk that > parses custom "name-addr"-style SIP headers for me? Try this: https://issues.asterisk.org/view.php?id=16268 Leif Madsen. ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
[asterisk-users] Parsing custom SIP headers
Hi,
Just to be sure: Is there a dialplan function in Asterisk that
parses custom "name-addr"-style SIP headers for me?
If I wanted to do it right the syntax
name-addr *(SEMI generic-param)
is quite complex to parse in the dialplan using nothing but CUT().
It's so easy to make false assumtions about angle brackets (< >),
whitespace (LWS), quotes (") around the display-name, character
escaping etc. All of the applications of CUT() I have seen are
way too simplistic.
Example of how it could work:
Set(addr=${SIP_PARSE_HEADER(${SIP_HEADER(P-Asserted-Identity)},addr-spec)});
Interesting parts include:
name-addr, display-name, addr-spec, scheme, userinfo, user,
telephone-subscriber, host, hostname, port, ...
Actually headers like P-Asserted-Identity can even have more then
one value.
---cut---
PAssertedID = "P-Asserted-Identity" HCOLON PAssertedID-value
*(COMMA PAssertedID-value)
PAssertedID-value = name-addr / addr-spec
---cut---
so I guess SIP_PARSE_HEADER() would need an index argument, just
like SIP_HEADER().
Proper parsing could be done in an AGI() script of course but that
involves a big overhead especially since the code to parse name-addr
is already in Asterisk. It's just not available in the dialplan.
Philipp Kempgen
--
AMOOMA GmbH - Bachstr. 126 - 56566 Neuwied -> http://www.amooma.de
Geschäftsführer: Stefan Wintermeyer, Handelsregister: Neuwied B14998
Asterisk: http://the-asterisk-book.com - http://das-asterisk-buch.de
Videos of the AMOOCON VoIP conference 2009 -> http://www.amoocon.de
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