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dnsmadeeasy.go
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dnsmadeeasy.go
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// Package dnsmadeeasy implements a DNS provider for solving the DNS-01 challenge using DNS Made Easy.
package dnsmadeeasy
import (
"crypto/tls"
"errors"
"fmt"
"net/http"
"strings"
"time"
"github.com/go-acme/lego/challenge/dns01"
"github.com/go-acme/lego/platform/config/env"
"github.com/go-acme/lego/providers/dns/dnsmadeeasy/internal"
)
// Config is used to configure the creation of the DNSProvider
type Config struct {
BaseURL string
APIKey string
APISecret string
Sandbox bool
HTTPClient *http.Client
PropagationTimeout time.Duration
PollingInterval time.Duration
TTL int
}
// NewDefaultConfig returns a default configuration for the DNSProvider
func NewDefaultConfig() *Config {
return &Config{
TTL: env.GetOrDefaultInt("DNSMADEEASY_TTL", dns01.DefaultTTL),
PropagationTimeout: env.GetOrDefaultSecond("DNSMADEEASY_PROPAGATION_TIMEOUT", dns01.DefaultPropagationTimeout),
PollingInterval: env.GetOrDefaultSecond("DNSMADEEASY_POLLING_INTERVAL", dns01.DefaultPollingInterval),
HTTPClient: &http.Client{
Timeout: env.GetOrDefaultSecond("DNSMADEEASY_HTTP_TIMEOUT", 10*time.Second),
Transport: &http.Transport{
TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
},
},
}
}
// DNSProvider is an implementation of the acme.ChallengeProvider interface that uses
// DNSMadeEasy's DNS API to manage TXT records for a domain.
type DNSProvider struct {
config *Config
client *internal.Client
}
// NewDNSProvider returns a DNSProvider instance configured for DNSMadeEasy DNS.
// Credentials must be passed in the environment variables:
// DNSMADEEASY_API_KEY and DNSMADEEASY_API_SECRET.
func NewDNSProvider() (*DNSProvider, error) {
values, err := env.Get("DNSMADEEASY_API_KEY", "DNSMADEEASY_API_SECRET")
if err != nil {
return nil, fmt.Errorf("dnsmadeeasy: %v", err)
}
config := NewDefaultConfig()
config.Sandbox = env.GetOrDefaultBool("DNSMADEEASY_SANDBOX", false)
config.APIKey = values["DNSMADEEASY_API_KEY"]
config.APISecret = values["DNSMADEEASY_API_SECRET"]
return NewDNSProviderConfig(config)
}
// NewDNSProviderConfig return a DNSProvider instance configured for DNS Made Easy.
func NewDNSProviderConfig(config *Config) (*DNSProvider, error) {
if config == nil {
return nil, errors.New("dnsmadeeasy: the configuration of the DNS provider is nil")
}
var baseURL string
if config.Sandbox {
baseURL = "https://api.sandbox.dnsmadeeasy.com/V2.0"
} else {
if len(config.BaseURL) > 0 {
baseURL = config.BaseURL
} else {
baseURL = "https://api.dnsmadeeasy.com/V2.0"
}
}
client, err := internal.NewClient(config.APIKey, config.APISecret)
if err != nil {
return nil, fmt.Errorf("dnsmadeeasy: %v", err)
}
client.HTTPClient = config.HTTPClient
client.BaseURL = baseURL
return &DNSProvider{
client: client,
config: config,
}, nil
}
// Present creates a TXT record using the specified parameters
func (d *DNSProvider) Present(domainName, token, keyAuth string) error {
fqdn, value := dns01.GetRecord(domainName, keyAuth)
authZone, err := dns01.FindZoneByFqdn(fqdn)
if err != nil {
return fmt.Errorf("dnsmadeeasy: unable to find zone for %s: %v", fqdn, err)
}
// fetch the domain details
domain, err := d.client.GetDomain(authZone)
if err != nil {
return fmt.Errorf("dnsmadeeasy: unable to get domain for zone %s: %v", authZone, err)
}
// create the TXT record
name := strings.Replace(fqdn, "."+authZone, "", 1)
record := &internal.Record{Type: "TXT", Name: name, Value: value, TTL: d.config.TTL}
err = d.client.CreateRecord(domain, record)
if err != nil {
return fmt.Errorf("dnsmadeeasy: unable to create record for %s: %v", name, err)
}
return nil
}
// CleanUp removes the TXT records matching the specified parameters
func (d *DNSProvider) CleanUp(domainName, token, keyAuth string) error {
fqdn, _ := dns01.GetRecord(domainName, keyAuth)
authZone, err := dns01.FindZoneByFqdn(fqdn)
if err != nil {
return fmt.Errorf("dnsmadeeasy: unable to find zone for %s: %v", fqdn, err)
}
// fetch the domain details
domain, err := d.client.GetDomain(authZone)
if err != nil {
return fmt.Errorf("dnsmadeeasy: unable to get domain for zone %s: %v", authZone, err)
}
// find matching records
name := strings.Replace(fqdn, "."+authZone, "", 1)
records, err := d.client.GetRecords(domain, name, "TXT")
if err != nil {
return fmt.Errorf("dnsmadeeasy: unable to get records for domain %s: %v", domain.Name, err)
}
// delete records
var lastError error
for _, record := range *records {
err = d.client.DeleteRecord(record)
if err != nil {
lastError = fmt.Errorf("dnsmadeeasy: unable to delete record [id=%d, name=%s]: %v", record.ID, record.Name, err)
}
}
return lastError
}
// 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
}