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package tencentcloud
import (
"errors"
"fmt"
"strings"
"github.com/go-acme/lego/v4/challenge/dns01"
"github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common"
errorsdk "github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common/errors"
dnspod "github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/dnspod/v20210323"
"golang.org/x/net/idna"
)
func (d *DNSProvider) getHostedZone(domain string) (*dnspod.DomainListItem, error) {
request := dnspod.NewDescribeDomainListRequest()
var domains []*dnspod.DomainListItem
for {
response, err := d.client.DescribeDomainList(request)
if err != nil {
return nil, fmt.Errorf("API call failed: %w", err)
}
domains = append(domains, response.Response.DomainList...)
if uint64(len(domains)) >= *response.Response.DomainCountInfo.AllTotal {
break
}
request.Offset = common.Int64Ptr(int64(len(domains)))
}
authZone, err := dns01.FindZoneByFqdn(domain)
if err != nil {
return nil, err
}
var hostedZone *dnspod.DomainListItem
for _, zone := range domains {
if *zone.Name == dns01.UnFqdn(authZone) {
hostedZone = zone
}
}
if hostedZone == nil {
return nil, fmt.Errorf("zone %s not found in dnspod for domain %s", authZone, domain)
}
return hostedZone, nil
}
func (d *DNSProvider) findTxtRecords(zone *dnspod.DomainListItem, fqdn string) ([]*dnspod.RecordListItem, error) {
recordName, err := extractRecordName(fqdn, *zone.Name)
if err != nil {
return nil, err
}
request := dnspod.NewDescribeRecordListRequest()
request.Domain = zone.Name
request.DomainId = zone.DomainId
request.Subdomain = common.StringPtr(recordName)
request.RecordType = common.StringPtr("TXT")
request.RecordLine = common.StringPtr("默认")
response, err := d.client.DescribeRecordList(request)
if err != nil {
var sdkError *errorsdk.TencentCloudSDKError
if errors.As(err, &sdkError) {
if sdkError.Code == dnspod.RESOURCENOTFOUND_NODATAOFRECORD {
return nil, nil
}
}
return nil, err
}
return response.Response.RecordList, nil
}
func extractRecordName(fqdn, zone string) (string, error) {
asciiDomain, err := idna.ToASCII(zone)
if err != nil {
return "", fmt.Errorf("fail to convert punycode: %w", err)
}
name := dns01.UnFqdn(fqdn)
if idx := strings.Index(name, "."+asciiDomain); idx != -1 {
return name[:idx], nil
}
return name, nil
}
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