feat: add dynv6 dns-01 applicant

internal/pkg/core/applicant/acme-dns-01/lego-providers/dynv6/dnsla.go

@@ -0,0 +1,37 @@
+package dynv6
+
+import (
+	"time"
+
+	"github.com/go-acme/lego/v4/challenge"
+
+	internal "github.com/usual2970/certimate/internal/pkg/core/applicant/acme-dns-01/lego-providers/dynv6/internal"
+)
+
+type ChallengeProviderConfig struct {
+	HttpToken             string `json:"httpToken"`
+	DnsPropagationTimeout int32  `json:"dnsPropagationTimeout,omitempty"`
+	DnsTTL                int32  `json:"dnsTTL,omitempty"`
+}
+
+func NewChallengeProvider(config *ChallengeProviderConfig) (challenge.Provider, error) {
+	if config == nil {
+		panic("config is nil")
+	}
+
+	providerConfig := internal.NewDefaultConfig()
+	providerConfig.HTTPToken = config.HttpToken
+	if config.DnsPropagationTimeout != 0 {
+		providerConfig.PropagationTimeout = time.Duration(config.DnsPropagationTimeout) * time.Second
+	}
+	if config.DnsTTL != 0 {
+		providerConfig.TTL = int(config.DnsTTL)
+	}
+
+	provider, err := internal.NewDNSProviderConfig(providerConfig)
+	if err != nil {
+		return nil, err
+	}
+
+	return provider, nil
+}

internal/pkg/core/applicant/acme-dns-01/lego-providers/dynv6/internal/lego.go

@@ -0,0 +1,167 @@
+package lego_dynv6
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"time"
+
+	"github.com/go-acme/lego/v4/challenge"
+	"github.com/go-acme/lego/v4/challenge/dns01"
+	"github.com/go-acme/lego/v4/platform/config/env"
+	"github.com/libdns/dynv6"
+	"github.com/libdns/libdns"
+)
+
+const (
+	envNamespace = "DYNV6_"
+
+	EnvHTTPToken = envNamespace + "HTTP_TOKEN"
+
+	EnvTTL                = envNamespace + "TTL"
+	EnvPropagationTimeout = envNamespace + "PROPAGATION_TIMEOUT"
+	EnvPollingInterval    = envNamespace + "POLLING_INTERVAL"
+)
+
+var _ challenge.ProviderTimeout = (*DNSProvider)(nil)
+
+type Config struct {
+	HTTPToken string
+
+	PropagationTimeout time.Duration
+	PollingInterval    time.Duration
+	TTL                int
+}
+
+type DNSProvider struct {
+	client *dynv6.Provider
+	config *Config
+}
+
+func NewDefaultConfig() *Config {
+	return &Config{
+		TTL:                env.GetOrDefaultInt(EnvTTL, dns01.DefaultTTL),
+		PropagationTimeout: env.GetOrDefaultSecond(EnvPropagationTimeout, 2*time.Minute),
+		PollingInterval:    env.GetOrDefaultSecond(EnvPollingInterval, dns01.DefaultPollingInterval),
+	}
+}
+
+func NewDNSProvider() (*DNSProvider, error) {
+	values, err := env.Get(EnvHTTPToken)
+	if err != nil {
+		return nil, fmt.Errorf("dynv6: %w", err)
+	}
+
+	config := NewDefaultConfig()
+	config.HTTPToken = values[EnvHTTPToken]
+
+	return NewDNSProviderConfig(config)
+}
+
+func NewDNSProviderConfig(config *Config) (*DNSProvider, error) {
+	if config == nil {
+		return nil, errors.New("dynv6: the configuration of the DNS provider is nil")
+	}
+
+	client := &dynv6.Provider{Token: config.HTTPToken}
+
+	return &DNSProvider{
+		client: client,
+		config: config,
+	}, nil
+}
+
+func (d *DNSProvider) Present(domain, token, keyAuth string) error {
+	info := dns01.GetChallengeInfo(domain, keyAuth)
+
+	authZone, err := dns01.FindZoneByFqdn(info.EffectiveFQDN)
+	if err != nil {
+		return fmt.Errorf("dynv6: %w", err)
+	}
+
+	subDomain, err := dns01.ExtractSubDomain(info.EffectiveFQDN, authZone)
+	if err != nil {
+		return fmt.Errorf("dynv6: %w", err)
+	}
+
+	if err := d.addOrUpdateDNSRecord(dns01.UnFqdn(authZone), subDomain, info.Value); err != nil {
+		return fmt.Errorf("dynv6: %w", err)
+	}
+
+	return nil
+}
+
+func (d *DNSProvider) CleanUp(domain, token, keyAuth string) error {
+	info := dns01.GetChallengeInfo(domain, keyAuth)
+
+	authZone, err := dns01.FindZoneByFqdn(info.EffectiveFQDN)
+	if err != nil {
+		return fmt.Errorf("dynv6: %w", err)
+	}
+
+	subDomain, err := dns01.ExtractSubDomain(info.EffectiveFQDN, authZone)
+	if err != nil {
+		return fmt.Errorf("dynv6: %w", err)
+	}
+
+	if err := d.removeDNSRecord(dns01.UnFqdn(authZone), subDomain); err != nil {
+		return fmt.Errorf("dynv6: %w", err)
+	}
+
+	return nil
+}
+
+func (d *DNSProvider) Timeout() (timeout, interval time.Duration) {
+	return d.config.PropagationTimeout, d.config.PollingInterval
+}
+
+func (d *DNSProvider) getDNSRecord(zoneName, subDomain string) (*libdns.Record, error) {
+	records, err := d.client.GetRecords(context.Background(), zoneName)
+	if err != nil {
+		return nil, err
+	}
+
+	for _, record := range records {
+		if record.Type == "TXT" && record.Name == subDomain {
+			return &record, nil
+		}
+	}
+
+	return nil, nil
+}
+
+func (d *DNSProvider) addOrUpdateDNSRecord(zoneName, subDomain, value string) error {
+	record, err := d.getDNSRecord(zoneName, subDomain)
+	if err != nil {
+		return err
+	}
+
+	if record == nil {
+		record = &libdns.Record{
+			Type:  "TXT",
+			Name:  subDomain,
+			Value: value,
+			TTL:   time.Duration(d.config.TTL) * time.Second,
+		}
+		_, err := d.client.AppendRecords(context.Background(), zoneName, []libdns.Record{*record})
+		return err
+	} else {
+		record.Value = value
+		_, err := d.client.SetRecords(context.Background(), zoneName, []libdns.Record{*record})
+		return err
+	}
+}
+
+func (d *DNSProvider) removeDNSRecord(zoneName, subDomain string) error {
+	record, err := d.getDNSRecord(zoneName, subDomain)
+	if err != nil {
+		return err
+	}
+
+	if record == nil {
+		return nil
+	} else {
+		_, err = d.client.DeleteRecords(context.Background(), zoneName, []libdns.Record{*record})
+		return err
+	}
+}