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Lunny Xiao
22d43ec9b6
## Problem `tea login add` can panic while auto-discovering SSH keys. The interactive login flow calls `regexp.FindStringSubmatch` and immediately indexes `[1]` without checking whether the regex matched. When the selected key display string does not have the expected format, the returned slice is `nil` and tea crashes with: ``` panic: runtime error: index out of range [1] with length 0 ``` This is the crash reported in #527. ## Root cause `regexp.Regexp.FindStringSubmatch` returns `nil` when the input does not match. Indexing that result with `[1]` assumes a match and causes the panic. The same unchecked pattern exists for SSH certificates and plain public keys in `modules/interact/login.go`. ## Changes - Extract auto-discovered SSH key/certificate display parsing into `parseSSHPubkeySelection`. - Add a `regexpSubmatch` helper that returns an error when a regex does not match, so login fails with a descriptive error instead of panicking. - Add table-driven tests for local/agent keys, local/agent certificates, and malformed input. Fixes #527 --------- Co-authored-by: bircni <bircni@icloud.com> Reviewed-on: https://gitea.com/gitea/tea/pulls/1100 Reviewed-by: bircni <bircni@icloud.com> Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>