79 lines
1.5 KiB
Go
79 lines
1.5 KiB
Go
package dnsexit_manager
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import (
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"errors"
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"net"
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"strconv"
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"strings"
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dns "git.jolbec.icu/OxFF/dns-manager"
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dns_req "github.com/miekg/dns"
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)
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func (c *client) getNSRecods() (*[]string, error) {
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var nameservers []string
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ns, err := net.LookupNS(c.Domain)
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if err != nil {
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return nil, err
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}
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for _, v := range ns {
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nameservers = append(nameservers, v.Host[:len(v.Host)-1]+":53")
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}
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return &nameservers, nil
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}
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func parse_record(record dns_req.RR) (*dns.Record, error) {
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split := strings.SplitN(record.String(), "\t", -1)
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if len(split) == 5 {
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var parsed dns.Record
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rec_type := dns.RecordType(split[3])
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if !rec_type.Check() {
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return nil, errors.New("provided DNS type is not exist in the main library")
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}
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parsed.Type = rec_type
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ttl, _ := strconv.ParseUint(split[1], 10, 64)
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parsed.Name = split[0]
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parsed.Content = split[4]
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parsed.TTL = uint(ttl)
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return &parsed, nil
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}
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return nil, errors.New("no meaningful record provided")
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}
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func find_dns_records(domain string, nameserver string) ([]*dns.Record, error) {
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var subdomains []*dns.Record
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tr := new(dns_req.Transfer)
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m := new(dns_req.Msg)
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m.SetAxfr(domain + ".")
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client, err := tr.In(m, nameserver)
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if err != nil {
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return nil, errors.New("failed to zone transfer in " + err.Error())
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}
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for msg := range client {
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if msg.Error != nil {
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return nil, msg.Error
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}
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for _, r := range msg.RR {
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record, err := parse_record(r)
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if err == nil {
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subdomains = append(subdomains, record)
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}
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}
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}
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return subdomains, nil
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}
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