Pierre-Olivier Mercier
c0a3ea2d4c
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223 lines
5.2 KiB
Go
223 lines
5.2 KiB
Go
// Copyright or © or Copr. happyDNS (2020)
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//
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// contact@happydomain.org
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//
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// This software is a computer program whose purpose is to provide a modern
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// interface to interact with DNS systems.
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//
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// This software is governed by the CeCILL license under French law and abiding
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// by the rules of distribution of free software. You can use, modify and/or
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// redistribute the software under the terms of the CeCILL license as
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// circulated by CEA, CNRS and INRIA at the following URL
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// "http://www.cecill.info".
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//
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// As a counterpart to the access to the source code and rights to copy, modify
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// and redistribute granted by the license, users are provided only with a
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// limited warranty and the software's author, the holder of the economic
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// rights, and the successive licensors have only limited liability.
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//
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// In this respect, the user's attention is drawn to the risks associated with
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// loading, using, modifying and/or developing or reproducing the software by
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// the user in light of its specific status of free software, that may mean
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// that it is complicated to manipulate, and that also therefore means that it
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// is reserved for developers and experienced professionals having in-depth
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// computer knowledge. Users are therefore encouraged to load and test the
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// software's suitability as regards their requirements in conditions enabling
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// the security of their systems and/or data to be ensured and, more generally,
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// to use and operate it in the same conditions as regards security.
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//
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// The fact that you are presently reading this means that you have had
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// knowledge of the CeCILL license and that you accept its terms.
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package database
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import (
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"bytes"
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"fmt"
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"log"
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"git.happydns.org/happydomain/model"
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"github.com/syndtr/goleveldb/leveldb"
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"github.com/syndtr/goleveldb/leveldb/util"
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)
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func (s *LevelDBStorage) GetDomains(u *happydns.User) (domains happydns.Domains, err error) {
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iter := s.search("domain-")
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defer iter.Release()
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for iter.Next() {
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var z happydns.Domain
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err = decodeData(iter.Value(), &z)
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if err != nil {
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return
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}
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if bytes.Equal(z.IdUser, u.Id) {
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domains = append(domains, &z)
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}
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}
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return
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}
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func (s *LevelDBStorage) getDomain(id string) (z *happydns.Domain, err error) {
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z = &happydns.Domain{}
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err = s.get(id, z)
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return
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}
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func (s *LevelDBStorage) GetDomain(u *happydns.User, id int64) (z *happydns.Domain, err error) {
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z, err = s.getDomain(fmt.Sprintf("domain-%d", id))
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if err != nil {
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return
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}
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if !bytes.Equal(z.IdUser, u.Id) {
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z = nil
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err = leveldb.ErrNotFound
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}
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return
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}
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func (s *LevelDBStorage) GetDomainByDN(u *happydns.User, dn string) (*happydns.Domain, error) {
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domains, err := s.GetDomains(u)
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if err != nil {
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return nil, err
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}
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for _, domain := range domains {
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if domain.DomainName == dn {
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return domain, nil
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}
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}
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return nil, leveldb.ErrNotFound
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}
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func (s *LevelDBStorage) DomainExists(dn string) bool {
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iter := s.search("domain-")
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defer iter.Release()
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for iter.Next() {
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var z happydns.Domain
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err := decodeData(iter.Value(), &z)
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if err != nil {
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continue
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}
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if z.DomainName == dn {
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return true
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}
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}
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return false
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}
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func (s *LevelDBStorage) CreateDomain(u *happydns.User, z *happydns.Domain) error {
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key, id, err := s.findInt63Key("domain-")
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if err != nil {
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return err
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}
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z.Id = id
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z.IdUser = u.Id
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return s.put(key, z)
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}
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func (s *LevelDBStorage) UpdateDomain(z *happydns.Domain) error {
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return s.put(fmt.Sprintf("domain-%d", z.Id), z)
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}
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func (s *LevelDBStorage) UpdateDomainOwner(z *happydns.Domain, newOwner *happydns.User) error {
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z.IdUser = newOwner.Id
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return s.put(fmt.Sprintf("domain-%d", z.Id), z)
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}
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func (s *LevelDBStorage) DeleteDomain(z *happydns.Domain) error {
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return s.delete(fmt.Sprintf("domain-%d", z.Id))
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}
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func (s *LevelDBStorage) ClearDomains() error {
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err := s.ClearZones()
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if err != nil {
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return err
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}
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tx, err := s.db.OpenTransaction()
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if err != nil {
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return err
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}
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iter := tx.NewIterator(util.BytesPrefix([]byte("domain-")), nil)
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defer iter.Release()
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for iter.Next() {
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err = tx.Delete(iter.Key(), nil)
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if err != nil {
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tx.Discard()
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return err
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}
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}
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err = tx.Commit()
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if err != nil {
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tx.Discard()
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return err
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}
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return nil
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}
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func (s *LevelDBStorage) TidyDomains() error {
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tx, err := s.db.OpenTransaction()
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if err != nil {
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return err
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}
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iter := tx.NewIterator(util.BytesPrefix([]byte("domain-")), nil)
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defer iter.Release()
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for iter.Next() {
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domain, err := s.getDomain(string(iter.Key()))
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if err == nil {
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var u *happydns.User
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u, err = s.GetUser(domain.IdUser)
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if err == leveldb.ErrNotFound {
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// Drop domain of unexistant users
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err = tx.Delete(iter.Key(), nil)
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log.Printf("Deleting orphan domain (user %d not found): %v\n", domain.IdUser, domain)
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}
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_, err = s.GetProvider(u, domain.IdProvider)
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if err == leveldb.ErrNotFound {
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// Drop domain of unexistant provider
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err = tx.Delete(iter.Key(), nil)
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log.Printf("Deleting orphan domain (provider %d not found): %v\n", domain.IdProvider, domain)
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}
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} else {
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// Drop unreadable domains
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log.Printf("Deleting unreadable domain (%w): %v\n", err, domain)
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err = tx.Delete(iter.Key(), nil)
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}
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if err != nil {
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tx.Discard()
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return err
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}
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}
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err = tx.Commit()
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if err != nil {
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tx.Discard()
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return err
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}
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return nil
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}
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