Support Wildcard Contact

[autoexpect]

The following message parsing failed: Error in SIP message at line 0 offset 0:

Thanks!

SIP Message ( does not contain [ and ] ):

[REGISTER sip:34020000002000000001@1.2.3.4:5060 SIP/2.0
Via: SIP/2.0/UDP 172.16.1.36:5060;rport;branch=z9hG4bK1585760165
From: sip:34020000001320000360@172.16.1.36:5060;tag=1882859352
To: sip:34020000001320000360@172.16.1.36:5060
Call-ID: f3g4h5366947196@172.16.1.36
CSeq: 3 REGISTER
Contact: *
Authorization: Digest username="34020000001320000360", realm="3402000000", nonce="MTYwMzM2NDU0MA==", uri="sip:34020000002000000001@1.2.3.4:5060", response="39c7240195630f0b26124c00db7cfa5c", algorithm=MD5, cnonce="0a4f113b", qop=auth, nc=00000002
Max-Forwards: 70
User-Agent: VCP MWARE
Expires: 0
RegMode: DEVICE;Describe=IPC-S642-IR;Register;DevVer=CIPC-B2301.5.21.200528
ReplaceDescribe: IPC-S642-IR;ProductId=defaultProductId;RegionCode=NONE;Vendor=UNIVIEW;Resolve=HIC1080P;Ptzfg=1;;SnmpVer=v3;DescribeAssy=PAU-X5;ReplaceNameAssy=PAU-X5
Ability: UCSStore=0
Content-Length: 0

]

[negbie]

Look at your contact header.

[negbie]

It's not a valid URI.

Edit: It's valid

[negbie]

Oh just checked the abnf and seems to be valid

Contact	=	( "Contact" | "m" ) ":" ( "*" | ( 1#( ( name-addr | addr-spec ) *( ";" contact-params ) ) ) )

[negbie]

Related to this:

Registrations expire as described above or may be removed explicitly
by setting the expires parameter for an existing registration to zero
or including an Expires: 0 header field. Registrations are matched
based on the user, host, port and maddr parameters. A client can
remove all registrations by including a single Contact header field
with the wildcard address "*". This usage is only allowed in REGISTER
requests when a Expires header with value of zero is present.

[negbie]

Since Expire is 0 in your case Contact: * is correct.

[jart]

Indeed. Thanks for the report @umbrellary. This sounds like a simple fix. Would you like to send us a pull request adding a special case for star contact? We should be able to merge that right away. Otherwise we can fix it for you in the next round of changes.