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106 lines
3.1 KiB
Go
106 lines
3.1 KiB
Go
// Package mydnsjp implements a DNS provider for solving the DNS-01 challenge using MyDNS.jp.
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package mydnsjp
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import (
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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/dns01"
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"github.com/go-acme/lego/v4/platform/config/env"
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)
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const defaultBaseURL = "https://www.mydns.jp/directedit.html"
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// Environment variables names.
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const (
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envNamespace = "MYDNSJP_"
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EnvMasterID = envNamespace + "MASTER_ID"
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EnvPassword = envNamespace + "PASSWORD"
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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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// Config is used to configure the creation of the DNSProvider.
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type Config struct {
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MasterID string
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Password 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, 2*time.Minute),
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PollingInterval: env.GetOrDefaultSecond(EnvPollingInterval, 2*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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}
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// NewDNSProvider returns a DNSProvider instance configured for MyDNS.jp.
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// Credentials must be passed in the environment variables: MYDNSJP_MASTER_ID and MYDNSJP_PASSWORD.
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func NewDNSProvider() (*DNSProvider, error) {
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values, err := env.Get(EnvMasterID, EnvPassword)
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if err != nil {
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return nil, fmt.Errorf("mydnsjp: %w", err)
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}
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config := NewDefaultConfig()
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config.MasterID = values[EnvMasterID]
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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 MyDNS.jp.
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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("mydnsjp: the configuration of the DNS provider is nil")
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}
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if config.MasterID == "" || config.Password == "" {
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return nil, errors.New("mydnsjp: some credentials information are missing")
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}
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return &DNSProvider{config: config}, 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 to fulfill the dns-01 challenge.
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func (d *DNSProvider) Present(domain, token, keyAuth string) error {
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_, value := dns01.GetRecord(domain, keyAuth)
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err := d.doRequest(domain, value, "REGIST")
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if err != nil {
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return fmt.Errorf("mydnsjp: %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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_, value := dns01.GetRecord(domain, keyAuth)
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err := d.doRequest(domain, value, "DELETE")
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if err != nil {
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return fmt.Errorf("mydnsjp: %w", err)
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}
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return nil
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}
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