Radarr: IPv6 IP host validation. Claims IPv6 address is "invalid"

[Napsterbater]

Describe the bug
When adding a connection, such as Emby, suppling a Ipv6 address in the host field fails to validate, radarr compalins that it is no valid.
To Reproduce
Steps to reproduce the behavior:

1. Go to Connections.
2. Click on Emby
3. Supply all info and an IPv6 address for the host.
4. See error "must be valid Host without http://"

Expected behavior
It should accept it as valid.
Screenshots
https://drive.google.com/file/d/1NzegxGJOy4-fe79YoG2wJcswMUDiGXti/view?usp=sharing

Platform Information (please complete the following information):

• OS: Windows Server 2019 1809
• Docker: No
• Mono or.NET Core Version: .NET Core Yes (3.1.10)
• Browser and Version: N/A
• Radarr Version: 3.0.0.4204
• Radarr Branch: Master

Trace Logs
https://drive.google.com/file/d/1oZQ-FA7tlsu0s3vcqbAjA1ePHDEUhoPR/view?usp=sharing

[austinwbest]

To be fair, it isn't valid. You can't use Ipv6 with http protocol like that.

I don't recall if it auto appends http,but you can try what is valid with Ipv6 and iirc that is brackets around it

[Napsterbater]

To be fair, it isn't valid. You can't use Ipv6 with http protocol like that.

Ummmm. What are you talking about.

I don't recall if it auto appends http,but you can try what is valid with Ipv6 and iirc that is brackets around it

It doesn't work with or without brackets.

[austinwbest]

What am I taking about.. Well if it prepends http to what you enter in the box to make its connection, then it is not valid as the error states.

http://{ipv6} is not valid as it contains colons iirc (I don't use Ipv6 often) :)

[Napsterbater]

Most software I'm setting up a configuration for something you simply provided the IPv6 address just as a IPv4, It recognizes that it is an IPv6 address and uses it in whatever format it needs to.

If this software simply copies what's in this box adds http:// the front and a colon port number to the end then it should accept the [::1] format.

It doesn't accept either. That is the problem. You cannot use an IPv6 literal in either format.

[Qstick]

Right, this is an issue with the host field validation that we inherit from Sonarr... it doesn’t like IPv6 as of now.

[bakerboy448]

Xref Sonarr https://github.com/Sonarr/Sonarr/issues/4149