chore: trim the code

providers/dns/cloudxns/cloudxns.go

@@ -2,28 +2,11 @@
 package cloudxns
 
 import (
-	"context"
 	"errors"
-	"fmt"
 	"net/http"
 	"time"
 
 	"github.com/go-acme/lego/v4/challenge/dns01"
-	"github.com/go-acme/lego/v4/platform/config/env"
-	"github.com/go-acme/lego/v4/providers/dns/cloudxns/internal"
-)
-
-// Environment variables names.
-const (
-	envNamespace = "CLOUDXNS_"
-
-	EnvAPIKey    = envNamespace + "API_KEY"
-	EnvSecretKey = envNamespace + "SECRET_KEY"
-
-	EnvTTL                = envNamespace + "TTL"
-	EnvPropagationTimeout = envNamespace + "PROPAGATION_TIMEOUT"
-	EnvPollingInterval    = envNamespace + "POLLING_INTERVAL"
-	EnvHTTPTimeout        = envNamespace + "HTTP_TIMEOUT"
 )
 
 // Config is used to configure the creation of the DNSProvider.
@@ -38,101 +21,34 @@ type Config struct {
 
 // NewDefaultConfig returns a default configuration for the DNSProvider.
 func NewDefaultConfig() *Config {
-	return &Config{
-		PropagationTimeout: env.GetOrDefaultSecond(EnvPropagationTimeout, dns01.DefaultPropagationTimeout),
-		PollingInterval:    env.GetOrDefaultSecond(EnvPollingInterval, dns01.DefaultPollingInterval),
-		TTL:                env.GetOrDefaultInt(EnvTTL, dns01.DefaultTTL),
-		HTTPClient: &http.Client{
-			Timeout: env.GetOrDefaultSecond(EnvHTTPTimeout, 30*time.Second),
-		},
-	}
+	return &Config{}
 }
 
 // DNSProvider implements the challenge.Provider interface.
-type DNSProvider struct {
-	config *Config
-	client *internal.Client
-}
+type DNSProvider struct{}
 
 // 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(EnvAPIKey, EnvSecretKey)
-	if err != nil {
-		return nil, fmt.Errorf("cloudxns: %w", err)
-	}
-
-	config := NewDefaultConfig()
-	config.APIKey = values[EnvAPIKey]
-	config.SecretKey = values[EnvSecretKey]
-
-	return NewDNSProviderConfig(config)
+	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, fmt.Errorf("cloudxns: %w", err)
-	}
-
-	if config.HTTPClient != nil {
-		client.HTTPClient = config.HTTPClient
-	}
-
-	return &DNSProvider{client: client, config: config}, nil
+func NewDNSProviderConfig(_ *Config) (*DNSProvider, error) {
+	return nil, errors.New("cloudxns: provider has shut down")
 }
 
 // Present creates a TXT record to fulfill the dns-01 challenge.
-func (d *DNSProvider) Present(domain, token, keyAuth string) error {
-	challengeInfo := dns01.GetChallengeInfo(domain, keyAuth)
-
-	ctx := context.Background()
-
-	info, err := d.client.GetDomainInformation(ctx, challengeInfo.EffectiveFQDN)
-	if err != nil {
-		return fmt.Errorf("cloudxns: %w", err)
-	}
-
-	err = d.client.AddTxtRecord(ctx, info, challengeInfo.EffectiveFQDN, challengeInfo.Value, d.config.TTL)
-	if err != nil {
-		return fmt.Errorf("cloudxns: %w", err)
-	}
-
+func (d *DNSProvider) Present(_, _, _ string) error {
 	return nil
 }
 
 // CleanUp removes the TXT record matching the specified parameters.
-func (d *DNSProvider) CleanUp(domain, token, keyAuth string) error {
-	challengeInfo := dns01.GetChallengeInfo(domain, keyAuth)
-
-	ctx := context.Background()
-
-	info, err := d.client.GetDomainInformation(ctx, challengeInfo.EffectiveFQDN)
-	if err != nil {
-		return fmt.Errorf("cloudxns: %w", err)
-	}
-
-	record, err := d.client.FindTxtRecord(ctx, info.ID, challengeInfo.EffectiveFQDN)
-	if err != nil {
-		return fmt.Errorf("cloudxns: %w", err)
-	}
-
-	err = d.client.RemoveTxtRecord(ctx, record.RecordID, info.ID)
-	if err != nil {
-		return fmt.Errorf("cloudxns: %w", err)
-	}
-
+func (d *DNSProvider) CleanUp(_, _, _ string) error {
 	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
+	return dns01.DefaultPropagationTimeout, dns01.DefaultPollingInterval
 }