forked from TrueCloudLab/lego
136 lines
4 KiB
Go
136 lines
4 KiB
Go
// Package sakuracloud implements a DNS provider for solving the DNS-01 challenge using SakuraCloud DNS.
|
|
package sakuracloud
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
"net/http"
|
|
"time"
|
|
|
|
"github.com/go-acme/lego/v4/challenge/dns01"
|
|
"github.com/go-acme/lego/v4/platform/config/env"
|
|
client "github.com/sacloud/api-client-go"
|
|
"github.com/sacloud/iaas-api-go"
|
|
"github.com/sacloud/iaas-api-go/helper/api"
|
|
)
|
|
|
|
// Environment variables names.
|
|
const (
|
|
envNamespace = "SAKURACLOUD_"
|
|
|
|
EnvAccessToken = envNamespace + "ACCESS_TOKEN"
|
|
EnvAccessTokenSecret = envNamespace + "ACCESS_TOKEN_SECRET"
|
|
|
|
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.
|
|
type Config struct {
|
|
Token string
|
|
Secret string
|
|
PropagationTimeout time.Duration
|
|
PollingInterval time.Duration
|
|
TTL int
|
|
HTTPClient *http.Client
|
|
}
|
|
|
|
// NewDefaultConfig returns a default configuration for the DNSProvider.
|
|
func NewDefaultConfig() *Config {
|
|
return &Config{
|
|
TTL: env.GetOrDefaultInt(EnvTTL, dns01.DefaultTTL),
|
|
PropagationTimeout: env.GetOrDefaultSecond(EnvPropagationTimeout, dns01.DefaultPropagationTimeout),
|
|
PollingInterval: env.GetOrDefaultSecond(EnvPollingInterval, dns01.DefaultPollingInterval),
|
|
HTTPClient: &http.Client{
|
|
Timeout: env.GetOrDefaultSecond(EnvHTTPTimeout, 10*time.Second),
|
|
},
|
|
}
|
|
}
|
|
|
|
// DNSProvider implements the challenge.Provider interface.
|
|
type DNSProvider struct {
|
|
config *Config
|
|
client iaas.DNSAPI
|
|
}
|
|
|
|
// NewDNSProvider returns a DNSProvider instance configured for SakuraCloud.
|
|
// Credentials must be passed in the environment variables:
|
|
// SAKURACLOUD_ACCESS_TOKEN & SAKURACLOUD_ACCESS_TOKEN_SECRET.
|
|
func NewDNSProvider() (*DNSProvider, error) {
|
|
values, err := env.Get(EnvAccessToken, EnvAccessTokenSecret)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("sakuracloud: %w", err)
|
|
}
|
|
|
|
config := NewDefaultConfig()
|
|
config.Token = values[EnvAccessToken]
|
|
config.Secret = values[EnvAccessTokenSecret]
|
|
|
|
return NewDNSProviderConfig(config)
|
|
}
|
|
|
|
// NewDNSProviderConfig return a DNSProvider instance configured for SakuraCloud.
|
|
func NewDNSProviderConfig(config *Config) (*DNSProvider, error) {
|
|
if config == nil {
|
|
return nil, errors.New("sakuracloud: the configuration of the DNS provider is nil")
|
|
}
|
|
|
|
if config.Token == "" {
|
|
return nil, errors.New("sakuracloud: AccessToken is missing")
|
|
}
|
|
|
|
if config.Secret == "" {
|
|
return nil, errors.New("sakuracloud: AccessSecret is missing")
|
|
}
|
|
|
|
defaultOption, err := api.DefaultOption()
|
|
if err != nil {
|
|
return nil, fmt.Errorf("sakuracloud: %w", err)
|
|
}
|
|
|
|
options := &api.CallerOptions{
|
|
Options: &client.Options{
|
|
AccessToken: config.Token,
|
|
AccessTokenSecret: config.Secret,
|
|
HttpClient: config.HTTPClient,
|
|
UserAgent: fmt.Sprintf("go-acme/lego %s", iaas.DefaultUserAgent),
|
|
},
|
|
}
|
|
|
|
return &DNSProvider{
|
|
client: iaas.NewDNSOp(api.NewCallerWithOptions(api.MergeOptions(defaultOption, options))),
|
|
config: config,
|
|
}, nil
|
|
}
|
|
|
|
// Present creates a TXT record to fulfill the dns-01 challenge.
|
|
func (d *DNSProvider) Present(domain, token, keyAuth string) error {
|
|
fqdn, value := dns01.GetRecord(domain, keyAuth)
|
|
|
|
err := d.addTXTRecord(fqdn, domain, value, d.config.TTL)
|
|
if err != nil {
|
|
return fmt.Errorf("sakuracloud: %w", err)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// CleanUp removes the TXT record matching the specified parameters.
|
|
func (d *DNSProvider) CleanUp(domain, token, keyAuth string) error {
|
|
fqdn, value := dns01.GetRecord(domain, keyAuth)
|
|
|
|
err := d.cleanupTXTRecord(fqdn, domain, value)
|
|
if err != nil {
|
|
return fmt.Errorf("sakuracloud: %w", err)
|
|
}
|
|
|
|
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
|
|
}
|