1
0
mirror of https://github.com/go-acme/lego.git synced 2024-12-13 13:48:45 +02:00
lego/providers/dns/duckdns/client.go
Ludovic Fernandez 42941ccea6
Refactor the core of the lib (#700)
- Packages
- Isolate code used by the CLI into the package `cmd`
- (experimental) Add e2e tests for HTTP01, TLS-ALPN-01 and DNS-01, use [Pebble](https://github.com/letsencrypt/pebble) and [challtestsrv](https://github.com/letsencrypt/boulder/tree/master/test/challtestsrv) 
- Support non-ascii domain name (punnycode)
- Check all challenges in a predictable order
- No more global exported variables
- Archive revoked certificates
- Fixes revocation for subdomains and non-ascii domains
- Disable pending authorizations
- use pointer for RemoteError/ProblemDetails
- Poll authz URL instead of challenge URL
- The ability for a DNS provider to solve the challenge sequentially
- Check all nameservers in a predictable order
- Option to disable the complete propagation Requirement
- CLI, support for renew with CSR
- CLI, add SAN on renew
- Add command to list certificates.
- Logs every iteration of waiting for the propagation
- update DNSimple client
- update github.com/miekg/dns
2018-12-06 22:50:17 +01:00

69 lines
1.7 KiB
Go

package duckdns
import (
"fmt"
"io/ioutil"
"net/url"
"strconv"
"strings"
"github.com/miekg/dns"
"github.com/xenolf/lego/challenge/dns01"
)
// updateTxtRecord Update the domains TXT record
// To update the TXT record we just need to make one simple get request.
// In DuckDNS you only have one TXT record shared with the domain and all sub domains.
func (d *DNSProvider) updateTxtRecord(domain, token, txt string, clear bool) error {
u, _ := url.Parse("https://www.duckdns.org/update")
mainDomain := getMainDomain(domain)
if len(mainDomain) == 0 {
return fmt.Errorf("unable to find the main domain for: %s", domain)
}
query := u.Query()
query.Set("domains", mainDomain)
query.Set("token", token)
query.Set("clear", strconv.FormatBool(clear))
query.Set("txt", txt)
u.RawQuery = query.Encode()
response, err := d.config.HTTPClient.Get(u.String())
if err != nil {
return err
}
defer response.Body.Close()
bodyBytes, err := ioutil.ReadAll(response.Body)
if err != nil {
return err
}
body := string(bodyBytes)
if body != "OK" {
return fmt.Errorf("request to change TXT record for DuckDNS returned the following result (%s) this does not match expectation (OK) used url [%s]", body, u)
}
return nil
}
// DuckDNS only lets you write to your subdomain
// so it must be in format subdomain.duckdns.org
// not in format subsubdomain.subdomain.duckdns.org
// so strip off everything that is not top 3 levels
func getMainDomain(domain string) string {
domain = dns01.UnFqdn(domain)
split := dns.Split(domain)
if strings.HasSuffix(strings.ToLower(domain), "duckdns.org") {
if len(split) < 3 {
return ""
}
firstSubDomainIndex := split[len(split)-3]
return domain[firstSubDomainIndex:]
}
return domain[split[len(split)-1]:]
}