39 lines
1.2 KiB
Go
39 lines
1.2 KiB
Go
package dnsprovider
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import (
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"context"
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"strings"
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"github.com/go-acme/lego/v5/challenge"
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)
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// cnameDelegationProvider 将原始域名的 DNS-01 挑战转发到专用验证域。
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// 委派域上的 TXT 记录由目标 Provider 管理，原始域名上的 CNAME 记录由用户提前配置。
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type cnameDelegationProvider struct {
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delegatedDomain string
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target challenge.Provider
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}
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func newCNAMEDelegationProvider(delegatedDomain string, target challenge.Provider) (challenge.Provider, error) {
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delegatedDomain = normalizeProviderDomain(delegatedDomain)
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if delegatedDomain == "" {
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return nil, ErrInvalidDelegatedDomain
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}
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if target == nil {
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return nil, ErrDelegatedProviderUnavailable
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}
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return &cnameDelegationProvider{delegatedDomain: delegatedDomain, target: target}, nil
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}
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func (p *cnameDelegationProvider) Present(ctx context.Context, _ string, token, keyAuth string) error {
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return p.target.Present(ctx, p.delegatedDomain, token, keyAuth)
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}
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func (p *cnameDelegationProvider) CleanUp(ctx context.Context, _ string, token, keyAuth string) error {
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return p.target.CleanUp(ctx, p.delegatedDomain, token, keyAuth)
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}
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func normalizeProviderDomain(value string) string {
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return strings.ToLower(strings.TrimSuffix(strings.TrimSpace(value), "."))
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}
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