Migrate to go-acme/lego.

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

@@ -0,0 +1,108 @@
+// Package cloudxns implements a DNS provider for solving the DNS-01 challenge using CloudXNS DNS.
+package cloudxns
+
+import (
+	"errors"
+	"fmt"
+	"net/http"
+	"time"
+
+	"github.com/go-acme/lego/challenge/dns01"
+	"github.com/go-acme/lego/platform/config/env"
+	"github.com/go-acme/lego/providers/dns/cloudxns/internal"
+)
+
+// Config is used to configure the creation of the DNSProvider
+type Config struct {
+	APIKey             string
+	SecretKey          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{
+		PropagationTimeout: env.GetOrDefaultSecond("CLOUDXNS_PROPAGATION_TIMEOUT", dns01.DefaultPropagationTimeout),
+		PollingInterval:    env.GetOrDefaultSecond("CLOUDXNS_POLLING_INTERVAL", dns01.DefaultPollingInterval),
+		TTL:                env.GetOrDefaultInt("CLOUDXNS_TTL", dns01.DefaultTTL),
+		HTTPClient: &http.Client{
+			Timeout: env.GetOrDefaultSecond("CLOUDXNS_HTTP_TIMEOUT", 30*time.Second),
+		},
+	}
+}
+
+// DNSProvider is an implementation of the acme.ChallengeProvider interface
+type DNSProvider struct {
+	config *Config
+	client *internal.Client
+}
+
+// NewDNSProvider returns a DNSProvider instance configured for CloudXNS.
+// Credentials must be passed in the environment variables:
+// CLOUDXNS_API_KEY and CLOUDXNS_SECRET_KEY.
+func NewDNSProvider() (*DNSProvider, error) {
+	values, err := env.Get("CLOUDXNS_API_KEY", "CLOUDXNS_SECRET_KEY")
+	if err != nil {
+		return nil, fmt.Errorf("CloudXNS: %v", err)
+	}
+
+	config := NewDefaultConfig()
+	config.APIKey = values["CLOUDXNS_API_KEY"]
+	config.SecretKey = values["CLOUDXNS_SECRET_KEY"]
+
+	return NewDNSProviderConfig(config)
+}
+
+// NewDNSProviderConfig return a DNSProvider instance configured for CloudXNS.
+func NewDNSProviderConfig(config *Config) (*DNSProvider, error) {
+	if config == nil {
+		return nil, errors.New("CloudXNS: the configuration of the DNS provider is nil")
+	}
+
+	client, err := internal.NewClient(config.APIKey, config.SecretKey)
+	if err != nil {
+		return nil, err
+	}
+
+	client.HTTPClient = config.HTTPClient
+
+	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)
+
+	info, err := d.client.GetDomainInformation(fqdn)
+	if err != nil {
+		return err
+	}
+
+	return d.client.AddTxtRecord(info, fqdn, value, d.config.TTL)
+}
+
+// CleanUp removes the TXT record matching the specified parameters.
+func (d *DNSProvider) CleanUp(domain, token, keyAuth string) error {
+	fqdn, _ := dns01.GetRecord(domain, keyAuth)
+
+	info, err := d.client.GetDomainInformation(fqdn)
+	if err != nil {
+		return err
+	}
+
+	record, err := d.client.FindTxtRecord(info.ID, fqdn)
+	if err != nil {
+		return err
+	}
+
+	return d.client.RemoveTxtRecord(record.RecordID, info.ID)
+}
+
+// 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
+}