mirror of
https://github.com/go-acme/lego.git
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159 lines
4.5 KiB
Go
159 lines
4.5 KiB
Go
// Package domeneshop implements a DNS provider for solving the DNS-01 challenge using domeneshop DNS.
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package domeneshop
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import (
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"context"
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"errors"
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"fmt"
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"net/http"
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"time"
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"github.com/go-acme/lego/v4/challenge"
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"github.com/go-acme/lego/v4/challenge/dns01"
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"github.com/go-acme/lego/v4/platform/config/env"
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"github.com/go-acme/lego/v4/providers/dns/domeneshop/internal"
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)
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// Environment variables names.
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const (
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envNamespace = "DOMENESHOP_"
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EnvAPIToken = envNamespace + "API_TOKEN"
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EnvAPISecret = envNamespace + "API_SECRET"
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EnvPropagationTimeout = envNamespace + "PROPAGATION_TIMEOUT"
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EnvPollingInterval = envNamespace + "POLLING_INTERVAL"
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EnvHTTPTimeout = envNamespace + "HTTP_TIMEOUT"
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)
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var _ challenge.ProviderTimeout = (*DNSProvider)(nil)
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// Config is used to configure the creation of the DNSProvider.
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type Config struct {
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APIToken string
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APISecret string
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PropagationTimeout time.Duration
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PollingInterval time.Duration
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HTTPClient *http.Client
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}
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// NewDefaultConfig returns a default configuration for the DNSProvider.
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func NewDefaultConfig() *Config {
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return &Config{
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PropagationTimeout: env.GetOrDefaultSecond(EnvPropagationTimeout, 5*time.Minute),
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PollingInterval: env.GetOrDefaultSecond(EnvPollingInterval, 20*time.Second),
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HTTPClient: &http.Client{
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Timeout: env.GetOrDefaultSecond(EnvHTTPTimeout, 30*time.Second),
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},
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}
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}
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// DNSProvider implements the challenge.Provider interface.
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type DNSProvider struct {
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config *Config
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client *internal.Client
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}
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// NewDNSProvider returns a DNSProvider instance configured for domeneshop.
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// Credentials must be passed in the environment variables:
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// DOMENESHOP_API_TOKEN, DOMENESHOP_API_SECRET.
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func NewDNSProvider() (*DNSProvider, error) {
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values, err := env.Get(EnvAPIToken, EnvAPISecret)
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if err != nil {
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return nil, fmt.Errorf("domeneshop: %w", err)
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}
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config := NewDefaultConfig()
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config.APIToken = values[EnvAPIToken]
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config.APISecret = values[EnvAPISecret]
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return NewDNSProviderConfig(config)
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}
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// NewDNSProviderConfig return a DNSProvider instance configured for Domeneshop.
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func NewDNSProviderConfig(config *Config) (*DNSProvider, error) {
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if config == nil {
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return nil, errors.New("domeneshop: the configuration of the DNS provider is nil")
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}
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if config.APIToken == "" || config.APISecret == "" {
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return nil, errors.New("domeneshop: credentials missing")
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}
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client := internal.NewClient(config.APIToken, config.APISecret)
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if config.HTTPClient != nil {
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client.HTTPClient = config.HTTPClient
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}
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return &DNSProvider{config: config, client: client}, nil
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}
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// Timeout returns the timeout and interval to use when checking for DNS propagation.
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// Adjusting here to cope with spikes in propagation times.
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func (d *DNSProvider) Timeout() (timeout, interval time.Duration) {
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return d.config.PropagationTimeout, d.config.PollingInterval
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}
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// Present creates a TXT record using the specified parameters.
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func (d *DNSProvider) Present(domain, _, keyAuth string) error {
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info := dns01.GetChallengeInfo(domain, keyAuth)
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zone, host, err := d.splitDomain(info.EffectiveFQDN)
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if err != nil {
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return fmt.Errorf("domeneshop: %w", err)
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}
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ctx := context.Background()
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domainInstance, err := d.client.GetDomainByName(ctx, zone)
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if err != nil {
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return fmt.Errorf("domeneshop: %w", err)
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}
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err = d.client.CreateTXTRecord(ctx, domainInstance, host, info.Value)
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if err != nil {
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return fmt.Errorf("domeneshop: failed to create record: %w", err)
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}
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return nil
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}
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// CleanUp removes the TXT record matching the specified parameters.
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func (d *DNSProvider) CleanUp(domain, _, keyAuth string) error {
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info := dns01.GetChallengeInfo(domain, keyAuth)
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zone, host, err := d.splitDomain(info.EffectiveFQDN)
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if err != nil {
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return fmt.Errorf("domeneshop: %w", err)
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}
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ctx := context.Background()
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domainInstance, err := d.client.GetDomainByName(ctx, zone)
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if err != nil {
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return fmt.Errorf("domeneshop: %w", err)
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}
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if err := d.client.DeleteTXTRecord(ctx, domainInstance, host, info.Value); err != nil {
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return fmt.Errorf("domeneshop: failed to create record: %w", err)
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}
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return nil
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}
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// splitDomain splits the hostname from the authoritative zone, and returns both parts (non-fqdn).
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func (d *DNSProvider) splitDomain(fqdn string) (string, string, error) {
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zone, err := dns01.FindZoneByFqdn(fqdn)
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if err != nil {
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return "", "", fmt.Errorf("could not find zone: %w", err)
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}
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subDomain, err := dns01.ExtractSubDomain(fqdn, zone)
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if err != nil {
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return "", "", err
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}
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return dns01.UnFqdn(zone), subDomain, nil
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}
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