Initial QSfera import

Server/vendor/github.com/go-acme/lego/v4/challenge/challenges.go

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+package challenge
+
+import (
+	"fmt"
+
+	"github.com/go-acme/lego/v4/acme"
+)
+
+// Type is a string that identifies a particular challenge type and version of ACME challenge.
+type Type string
+
+const (
+	// HTTP01 is the "http-01" ACME challenge https://tools.ietf.org/html/rfc8555#section-8.3
+	// Note: ChallengePath returns the URL path to fulfill this challenge.
+	HTTP01 = Type("http-01")
+
+	// DNS01 is the "dns-01" ACME challenge https://tools.ietf.org/html/rfc8555#section-8.4
+	// Note: GetRecord returns a DNS record which will fulfill this challenge.
+	DNS01 = Type("dns-01")
+
+	// TLSALPN01 is the "tls-alpn-01" ACME challenge https://tools.ietf.org/html/draft-ietf-acme-tls-alpn-07
+	TLSALPN01 = Type("tls-alpn-01")
+)
+
+func (t Type) String() string {
+	return string(t)
+}
+
+func FindChallenge(chlgType Type, authz acme.Authorization) (acme.Challenge, error) {
+	for _, chlg := range authz.Challenges {
+		if chlg.Type == string(chlgType) {
+			return chlg, nil
+		}
+	}
+
+	return acme.Challenge{}, fmt.Errorf("[%s] acme: unable to find challenge %s", GetTargetedDomain(authz), chlgType)
+}
+
+func GetTargetedDomain(authz acme.Authorization) string {
+	if authz.Wildcard {
+		return "*." + authz.Identifier.Value
+	}
+	return authz.Identifier.Value
+}

Server/vendor/github.com/go-acme/lego/v4/challenge/provider.go

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+package challenge
+
+import "time"
+
+// Provider enables implementing a custom challenge
+// provider. Present presents the solution to a challenge available to
+// be solved. CleanUp will be called by the challenge if Present ends
+// in a non-error state.
+type Provider interface {
+	Present(domain, token, keyAuth string) error
+	CleanUp(domain, token, keyAuth string) error
+}
+
+// ProviderTimeout allows for implementing a
+// Provider where an unusually long timeout is required when
+// waiting for an ACME challenge to be satisfied, such as when
+// checking for DNS record propagation. If an implementor of a
+// Provider provides a Timeout method, then the return values
+// of the Timeout method will be used when appropriate by the acme
+// package. The interval value is the time between checks.
+//
+// The default values used for timeout and interval are 60 seconds and
+// 2 seconds respectively. These are used when no Timeout method is
+// defined for the Provider.
+type ProviderTimeout interface {
+	Provider
+	Timeout() (timeout, interval time.Duration)
+}