Convert IPv6 characters to uppercase about update-plex-ipv6-access-url

[christopherbeneke]

That seems to work perfectly, thank you and happy new year!

[christopherbeneke]

This comment on the plex forums is what gave me the idea to try using an upper-case IPv6 address even though the commenter is referring to this in the context of something called "myplex" which I am not familiar with.

https://forums.plex.tv/t/ipv6-support-for-myplex/36520/271

[cetteup]

Just to verify: When you use Plex remotely, do you actually see Plex connecting via the uppercase IPv6 access URL? You can test this by opening the dev tools in any browser and then navigating to Plex. The network tab will show you which URL Plex ends up using.

[christopherbeneke]

Chrome shows the shortened IPv6 address with lower-case characters. I wish there was a way to check to see which access URL the Android Plex app is using. Changing from upper-case to lower-case seems to have no effect on the behavior of the web app, it only seems to affect the Android app.

[cetteup]

You may be able to pull debug logs from the app, see https://support.plex.tv/articles/201573117-android-android-tv-fire-tv-logs/.

I just want to avoid that this is actually caused by something totally unrelated, since both IPv6 addresses and hostnames should be case-insensitive.

[christopherbeneke]

Thanks for sharing that, it's so helpful in troubleshooting this!

Here's something really strange. When the custom server access URL is set to the uppercase format, the Android logs show that everything works as expected.

When the Custom server access URL is set to the lowecase format, the Android logs do not show any IPv6 address. Instead the logs show two IPv4 addresses, one is the internal IP address of the server and the other is the public WAN IP address of my router.

This leads me to believe that for some reason Plex does not pass along the lowercase IPv6 address to the Android client.

I am actually observing something similar in the Roku app logs as well. No IPv6 address shows up in the logs until the custom server access URL is set to uppercase. It seems like this may be a bug in the way plex shares the custom access URL. I am not sure why it doesn't seem to affect the web app when using plex.tv/web though.

I agree that the client should not care about the case of the IPv6 address, but it seems like plex may not be sharing the lowercase address.

[cetteup]

One last thing: What do you see in the logs when there's no IPv6 custom access URL configured? Same as when it's lowercase?

[christopherbeneke]

When the custom access URL field is left blank, it seems the behavior is similar to when a lower case format URL is used. The android app logs show both the internal and external IPv4 address of my plex server which will never work as I am behind CGNAT and cannot do IPv4 port forwarding. It seems plex could do a much better job handling these scenarios as more ISPs are moving towards this model.

[cetteup]

I added a new flag. If you run with -capitalization upper it will convert the IPv6 IP address to uppercase when building the custom access URL.

Will publish a new release later today.

[cetteup]

Released as part of 0.2.0.