afcb2bc6d1
Co-authored-by: Fernandez Ludovic <ldez@users.noreply.github.com>
169 lines
4.4 KiB
Go
169 lines
4.4 KiB
Go
// Package ultradns implements a DNS provider for solving the DNS-01 challenge using ultradns.
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package ultradns
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import (
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"errors"
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"fmt"
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"time"
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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/ultradns/ultradns-go-sdk/pkg/client"
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"github.com/ultradns/ultradns-go-sdk/pkg/record"
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"github.com/ultradns/ultradns-go-sdk/pkg/rrset"
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)
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// Environment variables names.
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const (
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envNamespace = "ULTRADNS_"
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EnvUsername = envNamespace + "USERNAME"
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EnvPassword = envNamespace + "PASSWORD"
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EnvEndpoint = envNamespace + "ENDPOINT"
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EnvTTL = envNamespace + "TTL"
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EnvPropagationTimeout = envNamespace + "PROPAGATION_TIMEOUT"
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EnvPollingInterval = envNamespace + "POLLING_INTERVAL"
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// Default variables names.
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defaultEndpoint = "https://api.ultradns.com/"
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defaultUserAgent = "lego-provider-ultradns"
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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 *client.Client
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}
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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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Username string
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Password string
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Endpoint string
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TTL int
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PropagationTimeout time.Duration
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PollingInterval time.Duration
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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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Endpoint: env.GetOrDefaultString(EnvEndpoint, defaultEndpoint),
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TTL: env.GetOrDefaultInt(EnvTTL, 120),
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PropagationTimeout: env.GetOrDefaultSecond(EnvPropagationTimeout, 2*time.Minute),
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PollingInterval: env.GetOrDefaultSecond(EnvPollingInterval, 4*time.Second),
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}
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}
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// NewDNSProvider returns a DNSProvider instance configured for ultradns.
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// Credentials must be passed in the environment variables:
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// ULTRADNS_USERNAME and ULTRADNS_PASSWORD.
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func NewDNSProvider() (*DNSProvider, error) {
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values, err := env.Get(EnvUsername, EnvPassword)
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if err != nil {
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return nil, fmt.Errorf("ultradns: %w", err)
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}
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config := NewDefaultConfig()
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config.Username = values[EnvUsername]
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config.Password = values[EnvPassword]
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return NewDNSProviderConfig(config)
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}
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// NewDNSProviderConfig return a DNSProvider instance configured for ultradns.
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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("ultradns: the configuration of the DNS provider is nil")
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}
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ultraConfig := client.Config{
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Username: config.Username,
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Password: config.Password,
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HostURL: config.Endpoint,
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UserAgent: defaultUserAgent,
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}
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uClient, err := client.NewClient(ultraConfig)
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if err != nil {
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return nil, fmt.Errorf("ultradns: %w", err)
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}
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return &DNSProvider{config: config, client: uClient}, 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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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, token, keyAuth string) error {
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fqdn, value := dns01.GetRecord(domain, keyAuth)
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authZone, err := dns01.FindZoneByFqdn(fqdn)
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if err != nil {
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return fmt.Errorf("ultradns: %w", err)
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}
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recordService, err := record.Get(d.client)
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if err != nil {
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return fmt.Errorf("ultradns: %w", err)
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}
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rrSetKeyData := &rrset.RRSetKey{
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Owner: fqdn,
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Zone: authZone,
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RecordType: "TXT",
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}
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res, _, _ := recordService.Read(rrSetKeyData)
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rrSetData := &rrset.RRSet{
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OwnerName: fqdn,
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TTL: d.config.TTL,
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RRType: "TXT",
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RData: []string{value},
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}
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if res != nil && res.StatusCode == 200 {
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_, err = recordService.Update(rrSetKeyData, rrSetData)
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} else {
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_, err = recordService.Create(rrSetKeyData, rrSetData)
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}
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if err != nil {
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return fmt.Errorf("ultradns: %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, token, keyAuth string) error {
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fqdn, _ := dns01.GetRecord(domain, keyAuth)
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authZone, err := dns01.FindZoneByFqdn(fqdn)
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if err != nil {
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return fmt.Errorf("ultradns: %w", err)
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}
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recordService, err := record.Get(d.client)
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if err != nil {
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return fmt.Errorf("ultradns: %w", err)
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}
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rrSetKeyData := &rrset.RRSetKey{
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Owner: fqdn,
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Zone: authZone,
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RecordType: "TXT",
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}
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_, err = recordService.Delete(rrSetKeyData)
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if err != nil {
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return fmt.Errorf("ultradns: %w", err)
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}
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return nil
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}
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