Migrate to go-acme/lego.

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

@@ -0,0 +1,211 @@
+// Package dnsimple implements a DNS provider for solving the DNS-01 challenge using dnsimple DNS.
+package dnsimple
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/dnsimple/dnsimple-go/dnsimple"
+	"github.com/go-acme/lego/challenge/dns01"
+	"github.com/go-acme/lego/platform/config/env"
+	"golang.org/x/oauth2"
+)
+
+// Config is used to configure the creation of the DNSProvider
+type Config struct {
+	AccessToken        string
+	BaseURL            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("DNSIMPLE_TTL", dns01.DefaultTTL),
+		PropagationTimeout: env.GetOrDefaultSecond("DNSIMPLE_PROPAGATION_TIMEOUT", dns01.DefaultPropagationTimeout),
+		PollingInterval:    env.GetOrDefaultSecond("DNSIMPLE_POLLING_INTERVAL", dns01.DefaultPollingInterval),
+	}
+}
+
+// DNSProvider is an implementation of the acme.ChallengeProvider interface.
+type DNSProvider struct {
+	config *Config
+	client *dnsimple.Client
+}
+
+// NewDNSProvider returns a DNSProvider instance configured for dnsimple.
+// Credentials must be passed in the environment variables: DNSIMPLE_OAUTH_TOKEN.
+//
+// See: https://developer.dnsimple.com/v2/#authentication
+func NewDNSProvider() (*DNSProvider, error) {
+	config := NewDefaultConfig()
+	config.AccessToken = env.GetOrFile("DNSIMPLE_OAUTH_TOKEN")
+	config.BaseURL = env.GetOrFile("DNSIMPLE_BASE_URL")
+
+	return NewDNSProviderConfig(config)
+}
+
+// NewDNSProviderConfig return a DNSProvider instance configured for DNSimple.
+func NewDNSProviderConfig(config *Config) (*DNSProvider, error) {
+	if config == nil {
+		return nil, errors.New("dnsimple: the configuration of the DNS provider is nil")
+	}
+
+	if config.AccessToken == "" {
+		return nil, fmt.Errorf("dnsimple: OAuth token is missing")
+	}
+
+	ts := oauth2.StaticTokenSource(&oauth2.Token{AccessToken: config.AccessToken})
+	client := dnsimple.NewClient(oauth2.NewClient(context.Background(), ts))
+
+	if config.BaseURL != "" {
+		client.BaseURL = config.BaseURL
+	}
+
+	return &DNSProvider{client: client, config: config}, nil
+}
+
+// Present creates a TXT record to fulfill the dns-01 challenge.
+func (d *DNSProvider) Present(domain, token, keyAuth string) error {
+	fqdn, value := dns01.GetRecord(domain, keyAuth)
+
+	zoneName, err := d.getHostedZone(domain)
+	if err != nil {
+		return fmt.Errorf("dnsimple: %v", err)
+	}
+
+	accountID, err := d.getAccountID()
+	if err != nil {
+		return fmt.Errorf("dnsimple: %v", err)
+	}
+
+	recordAttributes := newTxtRecord(zoneName, fqdn, value, d.config.TTL)
+	_, err = d.client.Zones.CreateRecord(accountID, zoneName, recordAttributes)
+	if err != nil {
+		return fmt.Errorf("dnsimple: API call failed: %v", err)
+	}
+
+	return nil
+}
+
+// CleanUp removes the TXT record matching the specified parameters.
+func (d *DNSProvider) CleanUp(domain, token, keyAuth string) error {
+	fqdn, _ := dns01.GetRecord(domain, keyAuth)
+
+	records, err := d.findTxtRecords(domain, fqdn)
+	if err != nil {
+		return fmt.Errorf("dnsimple: %v", err)
+	}
+
+	accountID, err := d.getAccountID()
+	if err != nil {
+		return fmt.Errorf("dnsimple: %v", err)
+	}
+
+	var lastErr error
+	for _, rec := range records {
+		_, err := d.client.Zones.DeleteRecord(accountID, rec.ZoneID, rec.ID)
+		if err != nil {
+			lastErr = fmt.Errorf("dnsimple: %v", err)
+		}
+	}
+
+	return lastErr
+}
+
+// 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) getHostedZone(domain string) (string, error) {
+	authZone, err := dns01.FindZoneByFqdn(dns01.ToFqdn(domain))
+	if err != nil {
+		return "", err
+	}
+
+	accountID, err := d.getAccountID()
+	if err != nil {
+		return "", err
+	}
+
+	zoneName := dns01.UnFqdn(authZone)
+
+	zones, err := d.client.Zones.ListZones(accountID, &dnsimple.ZoneListOptions{NameLike: zoneName})
+	if err != nil {
+		return "", fmt.Errorf("API call failed: %v", err)
+	}
+
+	var hostedZone dnsimple.Zone
+	for _, zone := range zones.Data {
+		if zone.Name == zoneName {
+			hostedZone = zone
+		}
+	}
+
+	if hostedZone.ID == 0 {
+		return "", fmt.Errorf("zone %s not found in DNSimple for domain %s", authZone, domain)
+	}
+
+	return hostedZone.Name, nil
+}
+
+func (d *DNSProvider) findTxtRecords(domain, fqdn string) ([]dnsimple.ZoneRecord, error) {
+	zoneName, err := d.getHostedZone(domain)
+	if err != nil {
+		return nil, err
+	}
+
+	accountID, err := d.getAccountID()
+	if err != nil {
+		return nil, err
+	}
+
+	recordName := extractRecordName(fqdn, zoneName)
+
+	result, err := d.client.Zones.ListRecords(accountID, zoneName, &dnsimple.ZoneRecordListOptions{Name: recordName, Type: "TXT", ListOptions: dnsimple.ListOptions{}})
+	if err != nil {
+		return nil, fmt.Errorf("API call has failed: %v", err)
+	}
+
+	return result.Data, nil
+}
+
+func newTxtRecord(zoneName, fqdn, value string, ttl int) dnsimple.ZoneRecord {
+	name := extractRecordName(fqdn, zoneName)
+
+	return dnsimple.ZoneRecord{
+		Type:    "TXT",
+		Name:    name,
+		Content: value,
+		TTL:     ttl,
+	}
+}
+
+func extractRecordName(fqdn, domain string) string {
+	name := dns01.UnFqdn(fqdn)
+	if idx := strings.Index(name, "."+domain); idx != -1 {
+		return name[:idx]
+	}
+	return name
+}
+
+func (d *DNSProvider) getAccountID() (string, error) {
+	whoamiResponse, err := d.client.Identity.Whoami()
+	if err != nil {
+		return "", err
+	}
+
+	if whoamiResponse.Data.Account == nil {
+		return "", fmt.Errorf("user tokens are not supported, please use an account token")
+	}
+
+	return strconv.FormatInt(whoamiResponse.Data.Account.ID, 10), nil
+}