[OpenSIPS-Users] Contact param removal

[Callum Guy]

Hi All,

I'm looking for a clean way to de-register a WS location when I
receive a REGISTER with expires set as a contact param:

<sip:v2fera4b at rjeh4sth4ien.invalid;transport=ws>;expires=0

The issue is that a ul record is stored with the following contact and
the parameters are included in the matching process for registrar
module remove() method:

                    "AOR": "6190051 at rtc.example.net",
                    "Contacts": [
                        {
                            "Contact":
"sip:v2fera4b at rjeh4sth4ien.invalid;transport=ws",
                            "ContactID": "3803995821952764351",
                            "Expires": 92,
                            "Q": "0.8",
                            "Callid": "6ndu8fnhpm267tnfpj36",
                            "Cseq": 3,
                            "User-agent": "SoftPhone Linux Chrome
112.0.0.0 (315e66c2)",
                            "Received": "sip:1.2.3.4:43010;transport=wss",
                            "State": "CS_NEW",
                            "Flags": 0,
                            "Cflags": "DST_WS SIP_PING_ENABLE TCP_NO_CONN",
                            "Socket": "wss:172.16.113.200:4433",
                            "Methods": 5439
                        }
                    ]
                }


To make this work I have demonstrated a method using regex to remove
the expires param and <> brackets, this is acceptable but I wanted to
reach out in case there was a cleaner way!

I only want to remove this individual contact address so a broader
match won't work in this situation.

Thanks,

Callum

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