CN DNS provider: IDN domain names need to be send as punycode

[ConiKost]

I would like to report an issue with the CN DNS (Core-Networks) provider. Currently, when issuing a ssl certificate for an IDN domain, like testö.tld, acme.sh converts this correctly to punycode, but when adding TXT records via DNS provider, the idn name "testö.tld" (just an example) is send instead of "xn--test-8qa.tld", which fails, as the API for Core-Networks demands to use puncycode.

For my understanding, this is not an issue in acme.sh itself, but the written CN DNS adapter.
-> https://github.com/acmesh-official/acme.sh/blob/master/dnsapi/dns_cn.sh
Adding also @5ll, since he seems created this?

$ CN_User="XXX" CN_Password="XXX" /usr/bin/acme.sh --syslog 6 --issue --dns dns_cn --keylength 4096 -d "testö.tld" -d *.testö.tld --server letsencrypt
[..]
[Fr 22. Sep 21:04:44 CEST 2023] invalid domain
[Fr 22. Sep 21:04:44 CEST 2023] Error add txt for domain:_acme-challenge.testö.tld
[Fr 22. Sep 21:04:44 CEST 2023] _on_issue_err

I can manually reproduce this, when talking to the Core-Networks API. The request needs to use domain:_acme-challenge.xn--test-8qa.tld instead of domain:_acme-challenge.testö.tld

[github-actions]

Please upgrade to the latest code and try again first. Maybe it's already fixed. acme.sh --upgrade If it's still not working, please provide the log with --debug 2, otherwise, nobody can help you.

[ConiKost]

Please upgrade to the latest code and try again first. Maybe it's already fixed. acme.sh --upgrade If it's still not working, please provide the log with --debug 2, otherwise, nobody can help you.

Yes, I am using the latest version and the relevant debug log is posted.