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provider_dmapi.go
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provider_dmapi.go
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package joker
import (
"context"
"errors"
"fmt"
"time"
"github.com/go-acme/lego/v4/challenge/dns01"
"github.com/go-acme/lego/v4/log"
"github.com/go-acme/lego/v4/platform/config/env"
"github.com/go-acme/lego/v4/providers/dns/joker/internal/dmapi"
)
// dmapiProvider implements the challenge.Provider interface.
type dmapiProvider struct {
config *Config
client *dmapi.Client
}
// newDmapiProvider returns a DNSProvider instance configured for Joker.
// Credentials must be passed in the environment variable: JOKER_USERNAME, JOKER_PASSWORD or JOKER_API_KEY.
func newDmapiProvider() (*dmapiProvider, error) {
values, err := env.Get(EnvAPIKey)
if err != nil {
var errU error
values, errU = env.Get(EnvUsername, EnvPassword)
if errU != nil {
//nolint:errorlint // false-positive
return nil, fmt.Errorf("joker: %v or %v", errU, err)
}
}
config := NewDefaultConfig()
config.APIKey = values[EnvAPIKey]
config.Username = values[EnvUsername]
config.Password = values[EnvPassword]
return newDmapiProviderConfig(config)
}
// newDmapiProviderConfig return a DNSProvider instance configured for Joker.
func newDmapiProviderConfig(config *Config) (*dmapiProvider, error) {
if config == nil {
return nil, errors.New("joker: the configuration of the DNS provider is nil")
}
if config.APIKey == "" {
if config.Username == "" || config.Password == "" {
return nil, errors.New("joker: credentials missing")
}
}
client := dmapi.NewClient(dmapi.AuthInfo{
APIKey: config.APIKey,
Username: config.Username,
Password: config.Password,
})
client.Debug = config.Debug
if config.HTTPClient != nil {
client.HTTPClient = config.HTTPClient
}
return &dmapiProvider{config: config, client: client}, 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 *dmapiProvider) Timeout() (timeout, interval time.Duration) {
return d.config.PropagationTimeout, d.config.PollingInterval
}
// Present creates a TXT record using the specified parameters.
func (d *dmapiProvider) Present(domain, token, keyAuth string) error {
info := dns01.GetChallengeInfo(domain, keyAuth)
zone, err := dns01.FindZoneByFqdn(info.EffectiveFQDN)
if err != nil {
return fmt.Errorf("joker: could not find zone for domain %q: %w", domain, err)
}
subDomain, err := dns01.ExtractSubDomain(info.EffectiveFQDN, zone)
if err != nil {
return fmt.Errorf("joker: %w", err)
}
if d.config.Debug {
log.Infof("[%s] joker: adding TXT record %q to zone %q with value %q", domain, subDomain, zone, info.Value)
}
ctx, err := d.client.CreateAuthenticatedContext(context.Background())
if err != nil {
return err
}
response, err := d.client.GetZone(ctx, zone)
if err != nil || response.StatusCode != 0 {
return formatResponseError(response, err)
}
dnsZone := dmapi.AddTxtEntryToZone(response.Body, subDomain, info.Value, d.config.TTL)
response, err = d.client.PutZone(ctx, zone, dnsZone)
if err != nil || response.StatusCode != 0 {
return formatResponseError(response, err)
}
return nil
}
// CleanUp removes the TXT record matching the specified parameters.
func (d *dmapiProvider) CleanUp(domain, token, keyAuth string) error {
info := dns01.GetChallengeInfo(domain, keyAuth)
zone, err := dns01.FindZoneByFqdn(info.EffectiveFQDN)
if err != nil {
return fmt.Errorf("joker: could not find zone for domain %q: %w", domain, err)
}
subDomain, err := dns01.ExtractSubDomain(info.EffectiveFQDN, zone)
if err != nil {
return fmt.Errorf("joker: %w", err)
}
if d.config.Debug {
log.Infof("[%s] joker: removing entry %q from zone %q", domain, subDomain, zone)
}
ctx, err := d.client.CreateAuthenticatedContext(context.Background())
if err != nil {
return err
}
defer func() {
// Try to log out in case of errors
_, _ = d.client.Logout(ctx)
}()
response, err := d.client.GetZone(ctx, zone)
if err != nil || response.StatusCode != 0 {
return formatResponseError(response, err)
}
dnsZone, modified := dmapi.RemoveTxtEntryFromZone(response.Body, subDomain)
if modified {
response, err = d.client.PutZone(ctx, zone, dnsZone)
if err != nil || response.StatusCode != 0 {
return formatResponseError(response, err)
}
}
response, err = d.client.Logout(ctx)
if err != nil {
return formatResponseError(response, err)
}
return nil
}
// formatResponseError formats error with optional details from DMAPI response.
func formatResponseError(response *dmapi.Response, err error) error {
if response != nil {
return fmt.Errorf("joker: DMAPI error: %w Response: %v", err, response.Headers)
}
return fmt.Errorf("joker: DMAPI error: %w", err)
}