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caddyhttp: Normalize hosts in provision

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This commit is contained in:
Matthew Holt 2026-02-18 09:03:49 -07:00
parent 95941a71e8
commit d6f2a05f8d
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1 changed files with 1 additions and 3 deletions
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4
modules/caddyhttp/matchers.go
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@ -262,13 +262,11 @@ func (m MatchHost) Provision(_ caddy.Context) error {
if err != nil {
return fmt.Errorf("converting hostname '%s' to ASCII: %v", host, err)
}
if asciiHost != host {
m[i] = asciiHost
}
normalizedHost := strings.ToLower(asciiHost)
if firstI, ok := seen[normalizedHost]; ok {
return fmt.Errorf("host at index %d is repeated at index %d: %s", firstI, i, host)
}
m[i] = normalizedHost // normalize for all comparisons while matching
seen[normalizedHost] = i
}