Migrate to go-acme/lego.

vendor/github.com/go-acme/lego/providers/dns/auroradns/auroradns.go

@@ -0,0 +1,191 @@
+// Package auroradns implements a DNS provider for solving the DNS-01 challenge using Aurora DNS.
+package auroradns
+
+import (
+	"errors"
+	"fmt"
+	"sync"
+	"time"
+
+	"github.com/go-acme/lego/challenge/dns01"
+	"github.com/go-acme/lego/platform/config/env"
+	"github.com/nrdcg/auroradns"
+)
+
+const defaultBaseURL = "https://api.auroradns.eu"
+
+// Config is used to configure the creation of the DNSProvider
+type Config struct {
+	BaseURL            string
+	UserID             string
+	Key                string
+	PropagationTimeout time.Duration
+	PollingInterval    time.Duration
+	TTL                int
+}
+
+// NewDefaultConfig returns a default configuration for the DNSProvider
+func NewDefaultConfig() *Config {
+	return &Config{
+		TTL:                env.GetOrDefaultInt("AURORA_TTL", 300),
+		PropagationTimeout: env.GetOrDefaultSecond("AURORA_PROPAGATION_TIMEOUT", dns01.DefaultPropagationTimeout),
+		PollingInterval:    env.GetOrDefaultSecond("AURORA_POLLING_INTERVAL", dns01.DefaultPollingInterval),
+	}
+}
+
+// DNSProvider describes a provider for AuroraDNS
+type DNSProvider struct {
+	recordIDs   map[string]string
+	recordIDsMu sync.Mutex
+	config      *Config
+	client      *auroradns.Client
+}
+
+// NewDNSProvider returns a DNSProvider instance configured for AuroraDNS.
+// Credentials must be passed in the environment variables:
+// AURORA_USER_ID and AURORA_KEY.
+func NewDNSProvider() (*DNSProvider, error) {
+	values, err := env.Get("AURORA_USER_ID", "AURORA_KEY")
+	if err != nil {
+		return nil, fmt.Errorf("aurora: %v", err)
+	}
+
+	config := NewDefaultConfig()
+	config.BaseURL = env.GetOrFile("AURORA_ENDPOINT")
+	config.UserID = values["AURORA_USER_ID"]
+	config.Key = values["AURORA_KEY"]
+
+	return NewDNSProviderConfig(config)
+}
+
+// NewDNSProviderConfig return a DNSProvider instance configured for AuroraDNS.
+func NewDNSProviderConfig(config *Config) (*DNSProvider, error) {
+	if config == nil {
+		return nil, errors.New("aurora: the configuration of the DNS provider is nil")
+	}
+
+	if config.UserID == "" || config.Key == "" {
+		return nil, errors.New("aurora: some credentials information are missing")
+	}
+
+	if config.BaseURL == "" {
+		config.BaseURL = defaultBaseURL
+	}
+
+	tr, err := auroradns.NewTokenTransport(config.UserID, config.Key)
+	if err != nil {
+		return nil, fmt.Errorf("aurora: %v", err)
+	}
+
+	client, err := auroradns.NewClient(tr.Client(), auroradns.WithBaseURL(config.BaseURL))
+	if err != nil {
+		return nil, fmt.Errorf("aurora: %v", err)
+	}
+
+	return &DNSProvider{
+		config:    config,
+		client:    client,
+		recordIDs: make(map[string]string),
+	}, nil
+}
+
+// Present creates a record with a secret
+func (d *DNSProvider) Present(domain, token, keyAuth string) error {
+	fqdn, value := dns01.GetRecord(domain, keyAuth)
+
+	authZone, err := dns01.FindZoneByFqdn(dns01.ToFqdn(domain))
+	if err != nil {
+		return fmt.Errorf("aurora: could not determine zone for domain: '%s'. %s", domain, err)
+	}
+
+	// 1. Aurora will happily create the TXT record when it is provided a fqdn,
+	//    but it will only appear in the control panel and will not be
+	//    propagated to DNS servers. Extract and use subdomain instead.
+	// 2. A trailing dot in the fqdn will cause Aurora to add a trailing dot to
+	//    the subdomain, resulting in _acme-challenge..<domain> rather
+	//    than _acme-challenge.<domain>
+
+	subdomain := fqdn[0 : len(fqdn)-len(authZone)-1]
+
+	authZone = dns01.UnFqdn(authZone)
+
+	zone, err := d.getZoneInformationByName(authZone)
+	if err != nil {
+		return fmt.Errorf("aurora: could not create record: %v", err)
+	}
+
+	record := auroradns.Record{
+		RecordType: "TXT",
+		Name:       subdomain,
+		Content:    value,
+		TTL:        d.config.TTL,
+	}
+
+	newRecord, _, err := d.client.CreateRecord(zone.ID, record)
+	if err != nil {
+		return fmt.Errorf("aurora: could not create record: %v", err)
+	}
+
+	d.recordIDsMu.Lock()
+	d.recordIDs[fqdn] = newRecord.ID
+	d.recordIDsMu.Unlock()
+
+	return nil
+}
+
+// CleanUp removes a given record that was generated by Present
+func (d *DNSProvider) CleanUp(domain, token, keyAuth string) error {
+	fqdn, _ := dns01.GetRecord(domain, keyAuth)
+
+	d.recordIDsMu.Lock()
+	recordID, ok := d.recordIDs[fqdn]
+	d.recordIDsMu.Unlock()
+
+	if !ok {
+		return fmt.Errorf("unknown recordID for %q", fqdn)
+	}
+
+	authZone, err := dns01.FindZoneByFqdn(dns01.ToFqdn(domain))
+	if err != nil {
+		return fmt.Errorf("could not determine zone for domain: %q. %v", domain, err)
+	}
+
+	authZone = dns01.UnFqdn(authZone)
+
+	zone, err := d.getZoneInformationByName(authZone)
+	if err != nil {
+		return err
+	}
+
+	_, _, err = d.client.DeleteRecord(zone.ID, recordID)
+	if err != nil {
+		return err
+	}
+
+	d.recordIDsMu.Lock()
+	delete(d.recordIDs, fqdn)
+	d.recordIDsMu.Unlock()
+
+	return nil
+}
+
+// Timeout returns the timeout and interval to use when checking for DNS propagation.
+// Adjusting here to cope with spikes in propagation times.
+func (d *DNSProvider) Timeout() (timeout, interval time.Duration) {
+	return d.config.PropagationTimeout, d.config.PollingInterval
+}
+
+func (d *DNSProvider) getZoneInformationByName(name string) (auroradns.Zone, error) {
+	zs, _, err := d.client.ListZones()
+	if err != nil {
+		return auroradns.Zone{}, err
+	}
+
+	for _, element := range zs {
+		if element.Name == name {
+			return element, nil
+		}
+	}
+
+	return auroradns.Zone{}, fmt.Errorf("could not find Zone record")
+}