traefik/vendor/github.com/xenolf/lego/providers/dns/dreamhost/dreamhost.go
2018-10-15 09:40:02 +02:00

111 lines
3.1 KiB
Go

// Package dreamhost Adds lego support for http://dreamhost.com DNS updates
// See https://help.dreamhost.com/hc/en-us/articles/217560167-API_overview
// and https://help.dreamhost.com/hc/en-us/articles/217555707-DNS-API-commands for the API spec.
package dreamhost
import (
"errors"
"fmt"
"net/http"
"time"
"github.com/xenolf/lego/acme"
"github.com/xenolf/lego/platform/config/env"
)
// Config is used to configure the creation of the DNSProvider
type Config struct {
BaseURL string
APIKey string
PropagationTimeout time.Duration
PollingInterval time.Duration
HTTPClient *http.Client
}
// NewDefaultConfig returns a default configuration for the DNSProvider
func NewDefaultConfig() *Config {
return &Config{
BaseURL: defaultBaseURL,
PropagationTimeout: env.GetOrDefaultSecond("DREAMHOST_PROPAGATION_TIMEOUT", 60*time.Minute),
PollingInterval: env.GetOrDefaultSecond("DREAMHOST_POLLING_INTERVAL", 1*time.Minute),
HTTPClient: &http.Client{
Timeout: env.GetOrDefaultSecond("DREAMHOST_HTTP_TIMEOUT", 30*time.Second),
},
}
}
// DNSProvider adds and removes the record for the DNS challenge
type DNSProvider struct {
config *Config
}
// NewDNSProvider returns a new DNS provider using
// environment variable DREAMHOST_TOKEN for adding and removing the DNS record.
func NewDNSProvider() (*DNSProvider, error) {
values, err := env.Get("DREAMHOST_API_KEY")
if err != nil {
return nil, fmt.Errorf("dreamhost: %v", err)
}
config := NewDefaultConfig()
config.APIKey = values["DREAMHOST_API_KEY"]
return NewDNSProviderConfig(config)
}
// NewDNSProviderConfig return a DNSProvider instance configured for DreamHost.
func NewDNSProviderConfig(config *Config) (*DNSProvider, error) {
if config == nil {
return nil, errors.New("dreamhost: the configuration of the DNS provider is nil")
}
if config.APIKey == "" {
return nil, errors.New("dreamhost: credentials missing")
}
if config.BaseURL == "" {
config.BaseURL = defaultBaseURL
}
return &DNSProvider{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, _ := acme.DNS01Record(domain, keyAuth)
record := acme.UnFqdn(fqdn)
u, err := d.buildQuery(cmdAddRecord, record, value)
if err != nil {
return fmt.Errorf("dreamhost: %v", err)
}
err = d.updateTxtRecord(u)
if err != nil {
return fmt.Errorf("dreamhost: %v", err)
}
return nil
}
// CleanUp clears DreamHost TXT record
func (d *DNSProvider) CleanUp(domain, token, keyAuth string) error {
fqdn, value, _ := acme.DNS01Record(domain, keyAuth)
record := acme.UnFqdn(fqdn)
u, err := d.buildQuery(cmdRemoveRecord, record, value)
if err != nil {
return fmt.Errorf("dreamhost: %v", err)
}
err = d.updateTxtRecord(u)
if err != nil {
return fmt.Errorf("dreamhost: %v", 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
}