mirror of
https://github.com/StackExchange/dnscontrol.git
synced 2024-09-21 15:26:32 +08:00
100 lines
3 KiB
Go
100 lines
3 KiB
Go
package namedotcom
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import (
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"fmt"
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"regexp"
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"sort"
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"strings"
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"github.com/StackExchange/dnscontrol/models"
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)
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var nsRegex = regexp.MustCompile(`ns([1-4])[a-z]{3}\.name\.com`)
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func (n *nameDotCom) GetNameservers(domain string) ([]*models.Nameserver, error) {
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//This is an interesting edge case. Name.com expects you to SET the nameservers to ns[1-4].name.com,
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//but it will internally set it to ns1xyz.name.com, where xyz is a uniqueish 3 letters.
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//In order to avoid endless loops, we will use the unique nameservers if present, or else the generic ones if not.
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nss, err := n.getNameserversRaw(domain)
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if err != nil {
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return nil, err
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}
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toUse := []string{"ns1.name.com", "ns2.name.com", "ns3.name.com", "ns4.name.com"}
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for _, ns := range nss {
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if matches := nsRegex.FindStringSubmatch(ns); len(matches) == 2 && len(matches[1]) == 1 {
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idx := matches[1][0] - '1' //regex ensures proper range
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toUse[idx] = matches[0]
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}
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}
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return models.StringsToNameservers(toUse), nil
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}
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func (n *nameDotCom) getNameserversRaw(domain string) ([]string, error) {
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result := &getDomainResult{}
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if err := n.get(n.apiGetDomain(domain), result); err != nil {
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return nil, err
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}
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if err := result.getErr(); err != nil {
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return nil, err
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}
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sort.Strings(result.Nameservers)
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return result.Nameservers, nil
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}
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func (n *nameDotCom) GetRegistrarCorrections(dc *models.DomainConfig) ([]*models.Correction, error) {
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nss, err := n.getNameserversRaw(dc.Name)
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if err != nil {
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return nil, err
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}
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foundNameservers := strings.Join(nss, ",")
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expected := []string{}
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for _, ns := range dc.Nameservers {
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name := strings.TrimRight(ns.Name, ".")
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expected = append(expected, name)
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}
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sort.Strings(expected)
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expectedNameservers := strings.Join(expected, ",")
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if foundNameservers != expectedNameservers {
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return []*models.Correction{
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{
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Msg: fmt.Sprintf("Update nameservers %s -> %s", foundNameservers, expectedNameservers),
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F: n.updateNameservers(expected, dc.Name),
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},
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}, nil
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}
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return nil, nil
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}
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//even if you provide them "ns1.name.com", they will set it to "ns1qrt.name.com". This will match that pattern to see if defaults are in use.
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var defaultNsRegexp = regexp.MustCompile(`ns1[a-z]{0,3}\.name\.com,ns2[a-z]{0,3}\.name\.com,ns3[a-z]{0,3}\.name\.com,ns4[a-z]{0,3}\.name\.com`)
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func (n *nameDotCom) apiGetDomain(domain string) string {
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return fmt.Sprintf("%s/domain/get/%s", n.APIUrl, domain)
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}
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func (n *nameDotCom) apiUpdateNS(domain string) string {
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return fmt.Sprintf("%s/domain/update_nameservers/%s", n.APIUrl, domain)
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}
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type getDomainResult struct {
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*apiResult
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DomainName string `json:"domain_name"`
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Nameservers []string `json:"nameservers"`
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}
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func (n *nameDotCom) updateNameservers(ns []string, domain string) func() error {
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return func() error {
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dat := struct {
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Nameservers []string `json:"nameservers"`
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}{ns}
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resp, err := n.post(n.apiUpdateNS(domain), dat)
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if err != nil {
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return err
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}
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if err = resp.getErr(); err != nil {
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return err
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}
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return nil
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}
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}
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