Cherry pick v1.7 into master

vendor/github.com/xenolf/lego/providers/dns/transip/transip.go

@@ -0,0 +1,150 @@
+// Package transip implements a DNS provider for solving the DNS-01 challenge using TransIP.
+package transip
+
+import (
+	"errors"
+	"fmt"
+	"strings"
+	"time"
+
+	"github.com/transip/gotransip"
+	transipdomain "github.com/transip/gotransip/domain"
+	"github.com/xenolf/lego/acme"
+	"github.com/xenolf/lego/platform/config/env"
+)
+
+// Config is used to configure the creation of the DNSProvider
+type Config struct {
+	AccountName        string
+	PrivateKeyPath     string
+	PropagationTimeout time.Duration
+	PollingInterval    time.Duration
+	TTL                int64
+}
+
+// NewDefaultConfig returns a default configuration for the DNSProvider
+func NewDefaultConfig() *Config {
+	return &Config{
+		TTL:                int64(env.GetOrDefaultInt("TRANSIP_TTL", 10)),
+		PropagationTimeout: env.GetOrDefaultSecond("TRANSIP_PROPAGATION_TIMEOUT", 10*time.Minute),
+		PollingInterval:    env.GetOrDefaultSecond("TRANSIP_POLLING_INTERVAL", 10*time.Second),
+	}
+}
+
+// DNSProvider describes a provider for TransIP
+type DNSProvider struct {
+	config *Config
+	client gotransip.SOAPClient
+}
+
+// NewDNSProvider returns a DNSProvider instance configured for TransIP.
+// Credentials must be passed in the environment variables:
+// TRANSIP_ACCOUNTNAME, TRANSIP_PRIVATEKEYPATH.
+func NewDNSProvider() (*DNSProvider, error) {
+	values, err := env.Get("TRANSIP_ACCOUNT_NAME", "TRANSIP_PRIVATE_KEY_PATH")
+	if err != nil {
+		return nil, fmt.Errorf("transip: %v", err)
+	}
+
+	config := NewDefaultConfig()
+	config.AccountName = values["TRANSIP_ACCOUNT_NAME"]
+	config.PrivateKeyPath = values["TRANSIP_PRIVATE_KEY_PATH"]
+
+	return NewDNSProviderConfig(config)
+}
+
+// NewDNSProviderConfig return a DNSProvider instance configured for TransIP.
+func NewDNSProviderConfig(config *Config) (*DNSProvider, error) {
+	if config == nil {
+		return nil, errors.New("transip: the configuration of the DNS provider is nil")
+	}
+
+	client, err := gotransip.NewSOAPClient(gotransip.ClientConfig{
+		AccountName:    config.AccountName,
+		PrivateKeyPath: config.PrivateKeyPath,
+	})
+	if err != nil {
+		return nil, fmt.Errorf("transip: %v", err)
+	}
+
+	return &DNSProvider{client: client, config: config}, 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
+}
+
+// Present creates a TXT record to fulfill the dns-01 challenge
+func (d *DNSProvider) Present(domain, token, keyAuth string) error {
+	fqdn, value, _ := acme.DNS01Record(domain, keyAuth)
+
+	authZone, err := acme.FindZoneByFqdn(fqdn, acme.RecursiveNameservers)
+	if err != nil {
+		return err
+	}
+
+	domainName := acme.UnFqdn(authZone)
+
+	// get the subDomain
+	subDomain := strings.TrimSuffix(acme.UnFqdn(fqdn), "."+domainName)
+
+	// get all DNS entries
+	info, err := transipdomain.GetInfo(d.client, domainName)
+	if err != nil {
+		return fmt.Errorf("transip: error for %s in Present: %v", domain, err)
+	}
+
+	// include the new DNS entry
+	dnsEntries := append(info.DNSEntries, transipdomain.DNSEntry{
+		Name:    subDomain,
+		TTL:     d.config.TTL,
+		Type:    transipdomain.DNSEntryTypeTXT,
+		Content: value,
+	})
+
+	// set the updated DNS entries
+	err = transipdomain.SetDNSEntries(d.client, domainName, dnsEntries)
+	if err != nil {
+		return fmt.Errorf("transip: %v", err)
+	}
+	return nil
+}
+
+// CleanUp removes the TXT record matching the specified parameters
+func (d *DNSProvider) CleanUp(domain, token, keyAuth string) error {
+	fqdn, _, _ := acme.DNS01Record(domain, keyAuth)
+
+	authZone, err := acme.FindZoneByFqdn(fqdn, acme.RecursiveNameservers)
+	if err != nil {
+		return err
+	}
+
+	domainName := acme.UnFqdn(authZone)
+
+	// get the subDomain
+	subDomain := strings.TrimSuffix(acme.UnFqdn(fqdn), "."+domainName)
+
+	// get all DNS entries
+	info, err := transipdomain.GetInfo(d.client, domainName)
+	if err != nil {
+		return fmt.Errorf("transip: error for %s in CleanUp: %v", fqdn, err)
+	}
+
+	// loop through the existing entries and remove the specific record
+	updatedEntries := info.DNSEntries[:0]
+	for _, e := range info.DNSEntries {
+		if e.Name != subDomain {
+			updatedEntries = append(updatedEntries, e)
+		}
+	}
+
+	// set the updated DNS entries
+	err = transipdomain.SetDNSEntries(d.client, domainName, updatedEntries)
+	if err != nil {
+		return fmt.Errorf("transip: couldn't get Record ID in CleanUp: %sv", err)
+	}
+
+	return nil
+}