86 lines
2.2 KiB
Go
86 lines
2.2 KiB
Go
// Package acme abstracts away various ACME libraries
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package acme
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import (
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"errors"
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"net"
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"github.com/go-acme/lego/v3/challenge"
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)
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var (
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// ErrProviderNotImplemented can be returned when attempting to
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// instantiate an unimplemented provider
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ErrProviderNotImplemented = errors.New("Provider not implemented")
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)
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// Provider is a ACME provider interface
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type Provider interface {
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NewListener(...string) (net.Listener, error)
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}
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// The Let's Encrypt ACME endpoints
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const (
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LetsEncryptStagingCA = "https://acme-staging-v02.api.letsencrypt.org/directory"
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LetsEncryptProductionCA = "https://acme-v02.api.letsencrypt.org/directory"
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)
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// Option (or Options) are passed to New() to configure providers
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type Option func(o *Options)
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// Options represents various options you can present to ACME providers
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type Options struct {
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// AcceptTLS must be set to true to indicate that you have read your
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// provider's terms of service.
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AcceptToS bool
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// CA is the CA to use
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CA string
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// ChallengeProvider is a go-acme/lego challenge provider. Set this if you
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// want to use DNS Challenges. Otherwise, tls-alpn-01 will be used
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ChallengeProvider challenge.Provider
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// Issue certificates for domains on demand. Otherwise, certs will be
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// retrieved / issued on start-up.
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OnDemand bool
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// TODO
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Cache interface{}
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}
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// AcceptTLS indicates whether you accept your CA's terms of service
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func AcceptTLS(b bool) Option {
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return func(o *Options) {
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o.AcceptToS = b
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}
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}
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// CA sets the CA of an acme.Options
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func CA(CA string) Option {
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return func(o *Options) {
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o.CA = CA
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}
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}
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// ChallengeProvider sets the Challenge provider of an acme.Options
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// if set, it enables the DNS challenge, otherwise tls-alpn-01 will be used.
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func ChallengeProvider(p challenge.Provider) Option {
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return func(o *Options) {
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o.ChallengeProvider = p
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}
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}
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// OnDemand enables on-demand certificate issuance. Not recommended for use
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// with the DNS challenge, as the first connection may be very slow.
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func OnDemand(b bool) Option {
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return func(o *Options) {
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o.OnDemand = b
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}
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}
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// Default uses the Let's Encrypt Production CA, with DNS Challenge disabled.
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func Default() []Option {
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return []Option{
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AcceptTLS(true),
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CA(LetsEncryptProductionCA),
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OnDemand(true),
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}
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}
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