Update lego

vendor/github.com/xenolf/lego/providers/dns/ns1/ns1.go

@@ -3,6 +3,7 @@
 package ns1
 
 import (
+	"errors"
 	"fmt"
 	"net/http"
 	"strings"
@@ -14,9 +15,31 @@ import (
 	"gopkg.in/ns1/ns1-go.v2/rest/model/dns"
 )
 
+// Config is used to configure the creation of the DNSProvider
+type Config struct {
+	APIKey             string
+	PropagationTimeout time.Duration
+	PollingInterval    time.Duration
+	TTL                int
+	HTTPClient         *http.Client
+}
+
+// NewDefaultConfig returns a default configuration for the DNSProvider
+func NewDefaultConfig() *Config {
+	return &Config{
+		TTL:                env.GetOrDefaultInt("NS1_TTL", 120),
+		PropagationTimeout: env.GetOrDefaultSecond("NS1_PROPAGATION_TIMEOUT", acme.DefaultPropagationTimeout),
+		PollingInterval:    env.GetOrDefaultSecond("NS1_POLLING_INTERVAL", acme.DefaultPollingInterval),
+		HTTPClient: &http.Client{
+			Timeout: env.GetOrDefaultSecond("NS1_HTTP_TIMEOUT", 10*time.Second),
+		},
+	}
+}
+
 // DNSProvider is an implementation of the acme.ChallengeProvider interface.
 type DNSProvider struct {
 	client *rest.Client
+	config *Config
 }
 
 // NewDNSProvider returns a DNSProvider instance configured for NS1.
@@ -24,38 +47,53 @@ type DNSProvider struct {
 func NewDNSProvider() (*DNSProvider, error) {
 	values, err := env.Get("NS1_API_KEY")
 	if err != nil {
-		return nil, fmt.Errorf("NS1: %v", err)
+		return nil, fmt.Errorf("ns1: %v", err)
 	}
 
-	return NewDNSProviderCredentials(values["NS1_API_KEY"])
+	config := NewDefaultConfig()
+	config.APIKey = values["NS1_API_KEY"]
+
+	return NewDNSProviderConfig(config)
 }
 
-// NewDNSProviderCredentials uses the supplied credentials to return a
-// DNSProvider instance configured for NS1.
+// NewDNSProviderCredentials uses the supplied credentials
+// to return a DNSProvider instance configured for NS1.
+// Deprecated
 func NewDNSProviderCredentials(key string) (*DNSProvider, error) {
-	if key == "" {
-		return nil, fmt.Errorf("NS1 credentials missing")
+	config := NewDefaultConfig()
+	config.APIKey = key
+
+	return NewDNSProviderConfig(config)
+}
+
+// NewDNSProviderConfig return a DNSProvider instance configured for NS1.
+func NewDNSProviderConfig(config *Config) (*DNSProvider, error) {
+	if config == nil {
+		return nil, errors.New("ns1: the configuration of the DNS provider is nil")
 	}
 
-	httpClient := &http.Client{Timeout: time.Second * 10}
-	client := rest.NewClient(httpClient, rest.SetAPIKey(key))
+	if config.APIKey == "" {
+		return nil, fmt.Errorf("ns1: credentials missing")
+	}
 
-	return &DNSProvider{client}, nil
+	client := rest.NewClient(config.HTTPClient, rest.SetAPIKey(config.APIKey))
+
+	return &DNSProvider{client: client, config: config}, nil
 }
 
 // Present creates a TXT record to fulfil the dns-01 challenge.
 func (d *DNSProvider) Present(domain, token, keyAuth string) error {
-	fqdn, value, ttl := acme.DNS01Record(domain, keyAuth)
+	fqdn, value, _ := acme.DNS01Record(domain, keyAuth)
 
 	zone, err := d.getHostedZone(domain)
 	if err != nil {
-		return err
+		return fmt.Errorf("ns1: %v", err)
 	}
 
-	record := d.newTxtRecord(zone, fqdn, value, ttl)
+	record := d.newTxtRecord(zone, fqdn, value, d.config.TTL)
 	_, err = d.client.Records.Create(record)
 	if err != nil && err != rest.ErrRecordExists {
-		return err
+		return fmt.Errorf("ns1: %v", err)
 	}
 
 	return nil
@@ -67,23 +105,29 @@ func (d *DNSProvider) CleanUp(domain, token, keyAuth string) error {
 
 	zone, err := d.getHostedZone(domain)
 	if err != nil {
-		return err
+		return fmt.Errorf("ns1: %v", err)
 	}
 
 	name := acme.UnFqdn(fqdn)
 	_, err = d.client.Records.Delete(zone.Zone, name, "TXT")
-	return err
+	return fmt.Errorf("ns1: %v", err)
+}
+
+// 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) (*dns.Zone, error) {
 	authZone, err := getAuthZone(domain)
 	if err != nil {
-		return nil, err
+		return nil, fmt.Errorf("ns1: %v", err)
 	}
 
 	zone, _, err := d.client.Zones.Get(authZone)
 	if err != nil {
-		return nil, err
+		return nil, fmt.Errorf("ns1: %v", err)
 	}
 
 	return zone, nil