Hi Calvin,
I'm afraid there is not much you can do, especially if (via script and
modules) you will need access to the "fixed" FROM - the msg changes you
do via script are not applied on the spot, but only when the msg is sent
out -> so you do not see your own changes.
But if you do not need to access the FROM hdr, you can do a brutal
replacement with remove_hf() and append_hf(), but not sure if you will
be able to extract any other parts of the FROM (if you want o preserve
them).
Regards,
Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
https://www.opensips-solutions.com
OpenSIPS Bootcamp 2021 online
https://opensips.org/training/OpenSIPS_eBootcamp_2021/
On 4/15/21 8:47 PM, Calvin Ellison wrote:
I would like to more gracefully handle non-RFC compliant From headers.
Is it possible to fix them with regex or a string replacement so I can
process them?
Most often the misbehavior is a space in the user part:
<sip:redacter Coredact@
<sip:redact0330 @
Other times there's an unclosed double quote on the friendly-name part
or some kind of non-printing character in the friendly-name or user
part. It's garbage that will ultimately be rejected, but the failure
to parse is preventing me from logging the offending trunk ID in the
'otg=' parameter of the From header.
opensips 3.1.1 (x86_64/linux) with commit to remove unnecessary regex
limitation
https://github.com/OpenSIPS/opensips/commit/a8f8aabc245ca86bd40a9eddf9befcd74a087be1
Here's the error followed by xlog $mb
Apr 15 15:26:24 /usr/sbin/opensips[13864]:
ERROR:core:parse_from_header: bad from header
Apr 15 15:26:24 /usr/sbin/opensips[13864]:
ERROR:core:pv_get_from_attr: cannot parse From header
Apr 15 15:26:24 /usr/sbin/opensips[13864]: INVITE
sip:redact@redact:5060 SIP/2.0#015#012Via: SIP/2.0/UDP
redact:5060;branch=z9hG4bK1sansay2313795380rdb15209#015#012Record-Route:
<sip:sansay2313795380rdb15209@redact:5060;lr;transport=udp>#015#012To:
<sip:redact@redact>#015#012From: <sip:redact0330
@redact;otg=redact;qtype=ers>;tag=sansay2313795380rdb15209#015#012Call-ID:
ers-1718949283-0-660497714@redact#015#012CSeq: 1
INVITE#015#012Contact: <sip:redact0330
@redact:5060>#015#012P-Asserted-Identity:
<sip:redact0330%20@redact;user=phone>#015#012Remote-Party-ID:
<sip:redact0330%20@redact>;privacy=off;screen=yes#015#012Max-Forwards:
63#015#012Content-Length: 0#015#012#015#012
Regards,
*Calvin Ellison*
Systems Architect
[email protected] <mailto:[email protected]>
+1 (213) 285-0555
-----------------------------------------------
*voxox.com <http://www.voxox.com/> *
5825 Oberlin Drive, Suite 5
San Diego, CA 92121
Voxox
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