135 lines
3.8 KiB
Go
135 lines
3.8 KiB
Go
package hurricane
|
|
|
|
import (
|
|
"context"
|
|
"errors"
|
|
"fmt"
|
|
"net/http"
|
|
"strings"
|
|
"time"
|
|
|
|
"github.com/go-acme/lego/v4/challenge/dns01"
|
|
"github.com/go-acme/lego/v4/platform/config/env"
|
|
"github.com/go-acme/lego/v4/providers/dns/hurricane/internal"
|
|
)
|
|
|
|
// Environment variables names.
|
|
const (
|
|
envNamespace = "HURRICANE_"
|
|
|
|
EnvTokens = envNamespace + "TOKENS"
|
|
|
|
EnvPropagationTimeout = envNamespace + "PROPAGATION_TIMEOUT"
|
|
EnvPollingInterval = envNamespace + "POLLING_INTERVAL"
|
|
EnvHTTPTimeout = envNamespace + "HTTP_TIMEOUT"
|
|
EnvSequenceInterval = envNamespace + "SEQUENCE_INTERVAL"
|
|
)
|
|
|
|
// Config is used to configure the creation of the DNSProvider.
|
|
type Config struct {
|
|
Credentials map[string]string
|
|
PropagationTimeout time.Duration
|
|
PollingInterval time.Duration
|
|
SequenceInterval time.Duration
|
|
HTTPClient *http.Client
|
|
}
|
|
|
|
// NewDefaultConfig returns a default configuration for the DNSProvider.
|
|
func NewDefaultConfig() *Config {
|
|
return &Config{
|
|
PropagationTimeout: env.GetOrDefaultSecond(EnvPropagationTimeout, 300*time.Second),
|
|
PollingInterval: env.GetOrDefaultSecond(EnvPollingInterval, dns01.DefaultPollingInterval),
|
|
SequenceInterval: env.GetOrDefaultSecond(EnvSequenceInterval, dns01.DefaultPropagationTimeout),
|
|
HTTPClient: &http.Client{
|
|
Timeout: env.GetOrDefaultSecond(EnvHTTPTimeout, 30*time.Second),
|
|
},
|
|
}
|
|
}
|
|
|
|
// DNSProvider implements the challenge.Provider interface.
|
|
type DNSProvider struct {
|
|
config *Config
|
|
client *internal.Client
|
|
}
|
|
|
|
// NewDNSProvider returns a DNSProvider instance configured for Hurricane Electric.
|
|
func NewDNSProvider() (*DNSProvider, error) {
|
|
config := NewDefaultConfig()
|
|
values, err := env.Get(EnvTokens)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("hurricane: %w", err)
|
|
}
|
|
|
|
credentials, err := parseCredentials(values[EnvTokens])
|
|
if err != nil {
|
|
return nil, fmt.Errorf("hurricane: %w", err)
|
|
}
|
|
|
|
config.Credentials = credentials
|
|
|
|
return NewDNSProviderConfig(config)
|
|
}
|
|
|
|
func NewDNSProviderConfig(config *Config) (*DNSProvider, error) {
|
|
if config == nil {
|
|
return nil, errors.New("hurricane: the configuration of the DNS provider is nil")
|
|
}
|
|
|
|
if len(config.Credentials) == 0 {
|
|
return nil, errors.New("hurricane: credentials missing")
|
|
}
|
|
|
|
client := internal.NewClient(config.Credentials)
|
|
|
|
return &DNSProvider{config: config, client: client}, nil
|
|
}
|
|
|
|
// Present updates a TXT record to fulfill the dns-01 challenge.
|
|
func (d *DNSProvider) Present(domain, _, keyAuth string) error {
|
|
_, txtRecord := dns01.GetRecord(domain, keyAuth)
|
|
|
|
err := d.client.UpdateTxtRecord(context.Background(), domain, txtRecord)
|
|
if err != nil {
|
|
return fmt.Errorf("hurricane: %w", err)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// CleanUp updates the TXT record matching the specified parameters.
|
|
func (d *DNSProvider) CleanUp(domain, _, _ string) error {
|
|
err := d.client.UpdateTxtRecord(context.Background(), domain, ".")
|
|
if err != nil {
|
|
return fmt.Errorf("hurricane: %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
|
|
}
|
|
|
|
// Sequential All DNS challenges for this provider will be resolved sequentially.
|
|
// Returns the interval between each iteration.
|
|
func (d *DNSProvider) Sequential() time.Duration {
|
|
return d.config.SequenceInterval
|
|
}
|
|
|
|
func parseCredentials(raw string) (map[string]string, error) {
|
|
credentials := make(map[string]string)
|
|
|
|
credStrings := strings.Split(strings.TrimSuffix(raw, ","), ",")
|
|
for _, credPair := range credStrings {
|
|
data := strings.Split(credPair, ":")
|
|
if len(data) != 2 {
|
|
return nil, fmt.Errorf("incorrect credential pair: %s", credPair)
|
|
}
|
|
|
|
credentials[strings.TrimSpace(data[0])] = strings.TrimSpace(data[1])
|
|
}
|
|
|
|
return credentials, nil
|
|
}
|