import re import traceback from flask import current_app from urllib.parse import urljoin from distutils.util import strtobool from distutils.version import StrictVersion from ..lib import utils from .base import db, domain_apikey from .setting import Setting from .user import User from .account import Account from .account import AccountUser from .domain_user import DomainUser from .domain_setting import DomainSetting from .history import History class Domain(db.Model): id = db.Column(db.Integer, primary_key=True) name = db.Column(db.String(255), index=True, unique=True) master = db.Column(db.String(128)) type = db.Column(db.String(6), nullable=False) serial = db.Column(db.Integer) notified_serial = db.Column(db.Integer) last_check = db.Column(db.Integer) dnssec = db.Column(db.Integer) account_id = db.Column(db.Integer, db.ForeignKey('account.id')) account = db.relationship("Account", back_populates="domains") settings = db.relationship('DomainSetting', back_populates='domain') apikeys = db.relationship("ApiKey", secondary=domain_apikey, back_populates="domains") def __init__(self, id=None, name=None, master=None, type='NATIVE', serial=None, notified_serial=None, last_check=None, dnssec=None, account_id=None): self.id = id self.name = name self.master = master self.type = type self.serial = serial self.notified_serial = notified_serial self.last_check = last_check self.dnssec = dnssec self.account_id = account_id # PDNS configs self.PDNS_STATS_URL = Setting().get('pdns_api_url') self.PDNS_API_KEY = Setting().get('pdns_api_key') self.PDNS_VERSION = Setting().get('pdns_version') self.API_EXTENDED_URL = utils.pdns_api_extended_uri(self.PDNS_VERSION) if StrictVersion(self.PDNS_VERSION) >= StrictVersion('4.0.0'): self.NEW_SCHEMA = True else: self.NEW_SCHEMA = False def __repr__(self): return ''.format(self.name) def add_setting(self, setting, value): try: self.settings.append(DomainSetting(setting=setting, value=value)) db.session.commit() return True except Exception as e: current_app.logger.error( 'Can not create setting {0} for domain {1}. {2}'.format( setting, self.name, e)) return False def get_domain_info(self, domain_name): """ Get all domains which has in PowerDNS """ headers = {} headers['X-API-Key'] = self.PDNS_API_KEY jdata = utils.fetch_json(urljoin( self.PDNS_STATS_URL, self.API_EXTENDED_URL + '/servers/localhost/zones/{0}'.format(domain_name)), headers=headers, timeout=int( Setting().get('pdns_api_timeout'))) return jdata def get_domains(self): """ Get all domains which has in PowerDNS """ headers = {} headers['X-API-Key'] = self.PDNS_API_KEY jdata = utils.fetch_json( urljoin(self.PDNS_STATS_URL, self.API_EXTENDED_URL + '/servers/localhost/zones'), headers=headers, timeout=int(Setting().get('pdns_api_timeout'))) return jdata def get_id_by_name(self, name): """ Return domain id """ try: domain = Domain.query.filter(Domain.name == name).first() return domain.id except Exception as e: current_app.logger.error( 'Domain does not exist. ERROR: {0}'.format(e)) return None def update(self): """ Fetch zones (domains) from PowerDNS and update into DB """ db_domain = Domain.query.all() list_db_domain = [d.name for d in db_domain] dict_db_domain = dict((x.name, x) for x in db_domain) current_app.logger.info("Found {} entrys in PowerDNS-Admin".format( len(list_db_domain))) headers = {} headers['X-API-Key'] = self.PDNS_API_KEY try: jdata = utils.fetch_json( urljoin(self.PDNS_STATS_URL, self.API_EXTENDED_URL + '/servers/localhost/zones'), headers=headers, timeout=int(Setting().get('pdns_api_timeout'))) list_jdomain = [d['name'].rstrip('.') for d in jdata] current_app.logger.info( "Found {} entrys in PowerDNS server".format(len(list_jdomain))) try: # domains should remove from db since it doesn't exist in powerdns anymore should_removed_db_domain = list( set(list_db_domain).difference(list_jdomain)) for domain_name in should_removed_db_domain: self.delete_domain_from_pdnsadmin(domain_name) except Exception as e: current_app.logger.error( 'Can not delete domain from DB. DETAIL: {0}'.format(e)) current_app.logger.debug(traceback.format_exc()) # update/add new domain for data in jdata: if 'account' in data: account_id = Account().get_id_by_name(data['account']) else: current_app.logger.debug( "No 'account' data found in API result - Unsupported PowerDNS version?" ) account_id = None domain = dict_db_domain.get(data['name'].rstrip('.'), None) if domain: self.update_pdns_admin_domain(domain, account_id, data) else: # add new domain self.add_domain_to_powerdns_admin(domain=data) current_app.logger.info('Update domain finished') return { 'status': 'ok', 'msg': 'Domain table has been updated successfully' } except Exception as e: current_app.logger.error( 'Can not update domain table. Error: {0}'.format(e)) return {'status': 'error', 'msg': 'Can not update domain table'} def update_pdns_admin_domain(self, domain, account_id, data): # existing domain, only update if something actually has changed if (domain.master != str(data['masters']) or domain.type != data['kind'] or domain.serial != data['serial'] or domain.notified_serial != data['notified_serial'] or domain.last_check != (1 if data['last_check'] else 0) or domain.dnssec != data['dnssec'] or domain.account_id != account_id): domain.master = str(data['masters']) domain.type = data['kind'] domain.serial = data['serial'] domain.notified_serial = data['notified_serial'] domain.last_check = 1 if data['last_check'] else 0 domain.dnssec = 1 if data['dnssec'] else 0 domain.account_id = account_id try: db.session.commit() current_app.logger.info("Updated PDNS-Admin domain {0}".format( domain.name)) except Exception as e: db.session.rollback() current_app.logger.info("Rolledback Domain {0} {1}".format( domain.name, e)) raise def add(self, domain_name, domain_type, soa_edit_api, domain_ns=[], domain_master_ips=[], account_name=None): """ Add a domain to power dns """ headers = {} headers['X-API-Key'] = self.PDNS_API_KEY if self.NEW_SCHEMA: domain_name = domain_name + '.' domain_ns = [ns + '.' for ns in domain_ns] if soa_edit_api not in ["DEFAULT", "INCREASE", "EPOCH", "OFF"]: soa_edit_api = 'DEFAULT' elif soa_edit_api == 'OFF': soa_edit_api = '' post_data = { "name": domain_name, "kind": domain_type, "masters": domain_master_ips, "nameservers": domain_ns, "soa_edit_api": soa_edit_api, "account": account_name } try: jdata = utils.fetch_json( urljoin(self.PDNS_STATS_URL, self.API_EXTENDED_URL + '/servers/localhost/zones'), headers=headers, timeout=int(Setting().get('pdns_api_timeout')), method='POST', data=post_data) if 'error' in jdata.keys(): current_app.logger.error(jdata['error']) if jdata.get('http_code') == 409: return {'status': 'error', 'msg': 'Domain already exists'} return {'status': 'error', 'msg': jdata['error']} else: current_app.logger.info( 'Added domain successfully to PowerDNS: {0}'.format( domain_name)) self.add_domain_to_powerdns_admin(domain_dict=post_data) return {'status': 'ok', 'msg': 'Added domain successfully'} except Exception as e: current_app.logger.error('Cannot add domain {0} {1}'.format( domain_name, e)) current_app.logger.debug(traceback.format_exc()) return {'status': 'error', 'msg': 'Cannot add this domain.'} def add_domain_to_powerdns_admin(self, domain=None, domain_dict=None): """ Read Domain from PowerDNS and add into PDNS-Admin """ headers = {} headers['X-API-Key'] = self.PDNS_API_KEY if not domain: try: domain = utils.fetch_json( urljoin( self.PDNS_STATS_URL, self.API_EXTENDED_URL + '/servers/localhost/zones/{0}'.format( domain_dict['name'])), headers=headers, timeout=int(Setting().get('pdns_api_timeout'))) except Exception as e: current_app.logger.error('Can not read Domain from PDNS') current_app.logger.error(e) current_app.logger.debug(traceback.format_exc()) if 'account' in domain: account_id = Account().get_id_by_name(domain['account']) else: current_app.logger.debug( "No 'account' data found in API result - Unsupported PowerDNS version?" ) account_id = None # add new domain d = Domain() d.name = domain['name'].rstrip('.') d.master = str(domain['masters']) d.type = domain['kind'] d.serial = domain['serial'] d.notified_serial = domain['notified_serial'] d.last_check = domain['last_check'] d.dnssec = 1 if domain['dnssec'] else 0 d.account_id = account_id db.session.add(d) try: db.session.commit() current_app.logger.info( "Synched PowerDNS Domain to PDNS-Admin: {0}".format(d.name)) return { 'status': 'ok', 'msg': 'Added Domain successfully to PowerDNS-Admin' } except Exception as e: db.session.rollback() current_app.logger.info("Rolledback Domain {0}".format(d.name)) raise def update_soa_setting(self, domain_name, soa_edit_api): domain = Domain.query.filter(Domain.name == domain_name).first() if not domain: return {'status': 'error', 'msg': 'Domain doesnt exist.'} headers = {} headers['X-API-Key'] = self.PDNS_API_KEY if soa_edit_api not in ["DEFAULT", "INCREASE", "EPOCH", "OFF"]: soa_edit_api = 'DEFAULT' elif soa_edit_api == 'OFF': soa_edit_api = '' post_data = {"soa_edit_api": soa_edit_api, "kind": domain.type} try: jdata = utils.fetch_json(urljoin( self.PDNS_STATS_URL, self.API_EXTENDED_URL + '/servers/localhost/zones/{0}'.format(domain.name)), headers=headers, timeout=int( Setting().get('pdns_api_timeout')), method='PUT', data=post_data) if 'error' in jdata.keys(): current_app.logger.error(jdata['error']) return {'status': 'error', 'msg': jdata['error']} else: current_app.logger.info( 'soa-edit-api changed for domain {0} successfully'.format( domain_name)) return { 'status': 'ok', 'msg': 'soa-edit-api changed successfully' } except Exception as e: current_app.logger.debug(e) current_app.logger.debug(traceback.format_exc()) current_app.logger.error( 'Cannot change soa-edit-api for domain {0}'.format( domain_name)) return { 'status': 'error', 'msg': 'Cannot change soa-edit-api this domain.' } def create_reverse_domain(self, domain_name, domain_reverse_name): """ Check the existing reverse lookup domain, if not exists create a new one automatically """ domain_obj = Domain.query.filter(Domain.name == domain_name).first() domain_auto_ptr = DomainSetting.query.filter( DomainSetting.domain == domain_obj).filter( DomainSetting.setting == 'auto_ptr').first() domain_auto_ptr = strtobool( domain_auto_ptr.value) if domain_auto_ptr else False system_auto_ptr = Setting().get('auto_ptr') self.name = domain_name domain_id = self.get_id_by_name(domain_reverse_name) if None == domain_id and \ ( system_auto_ptr or domain_auto_ptr ): result = self.add(domain_reverse_name, 'Master', 'DEFAULT', '', '') self.update() if result['status'] == 'ok': history = History(msg='Add reverse lookup domain {0}'.format( domain_reverse_name), detail=str({ 'domain_type': 'Master', 'domain_master_ips': '' }), created_by='System') history.add() else: return { 'status': 'error', 'msg': 'Adding reverse lookup domain failed' } domain_user_ids = self.get_user() if len(domain_user_ids) > 0: self.name = domain_reverse_name self.grant_privileges(domain_user_ids) return { 'status': 'ok', 'msg': 'New reverse lookup domain created with granted privileges' } return { 'status': 'ok', 'msg': 'New reverse lookup domain created without users' } return {'status': 'ok', 'msg': 'Reverse lookup domain already exists'} def get_reverse_domain_name(self, reverse_host_address): c = 1 if re.search('ip6.arpa', reverse_host_address): for i in range(1, 32, 1): address = re.search( '((([a-f0-9]\.){' + str(i) + '})(?P.+6.arpa)\.?)', reverse_host_address) if None != self.get_id_by_name(address.group('ipname')): c = i break return re.search( '((([a-f0-9]\.){' + str(c) + '})(?P.+6.arpa)\.?)', reverse_host_address).group('ipname') else: for i in range(1, 4, 1): address = re.search( '((([0-9]+\.){' + str(i) + '})(?P.+r.arpa)\.?)', reverse_host_address) if None != self.get_id_by_name(address.group('ipname')): c = i break return re.search( '((([0-9]+\.){' + str(c) + '})(?P.+r.arpa)\.?)', reverse_host_address).group('ipname') def delete(self, domain_name): """ Delete a single domain name from powerdns """ try: self.delete_domain_from_powerdns(domain_name) self.delete_domain_from_pdnsadmin(domain_name) return {'status': 'ok', 'msg': 'Delete domain successfully'} except Exception as e: current_app.logger.error( 'Cannot delete domain {0}'.format(domain_name)) current_app.logger.error(e) current_app.logger.debug(traceback.format_exc()) return {'status': 'error', 'msg': 'Cannot delete domain'} def delete_domain_from_powerdns(self, domain_name): """ Delete a single domain name from powerdns """ headers = {} headers['X-API-Key'] = self.PDNS_API_KEY utils.fetch_json(urljoin( self.PDNS_STATS_URL, self.API_EXTENDED_URL + '/servers/localhost/zones/{0}'.format(domain_name)), headers=headers, timeout=int(Setting().get('pdns_api_timeout')), method='DELETE') current_app.logger.info( 'Deleted domain successfully from PowerDNS-Entity: {0}'.format( domain_name)) return {'status': 'ok', 'msg': 'Delete domain successfully'} def delete_domain_from_pdnsadmin(self, domain_name): # Revoke permission before deleting domain domain = Domain.query.filter(Domain.name == domain_name).first() domain_user = DomainUser.query.filter( DomainUser.domain_id == domain.id) if domain_user: domain_user.delete() db.session.commit() domain_setting = DomainSetting.query.filter( DomainSetting.domain_id == domain.id) if domain_setting: domain_setting.delete() db.session.commit() domain.apikeys[:] = [] db.session.commit() # then remove domain Domain.query.filter(Domain.name == domain_name).delete() db.session.commit() current_app.logger.info( "Deleted Domain successfully from pdnsADMIN: {}".format( domain_name)) def get_user(self): """ Get users (id) who have access to this domain name """ user_ids = [] query = db.session.query( DomainUser, Domain).filter(User.id == DomainUser.user_id).filter( Domain.id == DomainUser.domain_id).filter( Domain.name == self.name).all() for q in query: user_ids.append(q[0].user_id) return user_ids def grant_privileges(self, new_user_ids): """ Reconfigure domain_user table """ domain_id = self.get_id_by_name(self.name) domain_user_ids = self.get_user() removed_ids = list(set(domain_user_ids).difference(new_user_ids)) added_ids = list(set(new_user_ids).difference(domain_user_ids)) try: for uid in removed_ids: DomainUser.query.filter(DomainUser.user_id == uid).filter( DomainUser.domain_id == domain_id).delete() db.session.commit() except Exception as e: db.session.rollback() current_app.logger.error( 'Cannot revoke user privileges on domain {0}. DETAIL: {1}'. format(self.name, e)) current_app.logger.debug(print(traceback.format_exc())) try: for uid in added_ids: du = DomainUser(domain_id, uid) db.session.add(du) db.session.commit() except Exception as e: db.session.rollback() current_app.logger.error( 'Cannot grant user privileges to domain {0}. DETAIL: {1}'. format(self.name, e)) current_app.logger.debug(print(traceback.format_exc())) def update_from_master(self, domain_name): """ Update records from Master DNS server """ domain = Domain.query.filter(Domain.name == domain_name).first() if domain: headers = {} headers['X-API-Key'] = self.PDNS_API_KEY try: utils.fetch_json(urljoin( self.PDNS_STATS_URL, self.API_EXTENDED_URL + '/servers/localhost/zones/{0}/axfr-retrieve'.format( domain.name)), headers=headers, timeout=int( Setting().get('pdns_api_timeout')), method='PUT') return { 'status': 'ok', 'msg': 'Update from Master successfully' } except Exception as e: current_app.logger.error( 'Cannot update from master. DETAIL: {0}'.format(e)) return { 'status': 'error', 'msg': 'There was something wrong, please contact administrator' } else: return {'status': 'error', 'msg': 'This domain doesnot exist'} def get_domain_dnssec(self, domain_name): """ Get domain DNSSEC information """ domain = Domain.query.filter(Domain.name == domain_name).first() if domain: headers = {} headers['X-API-Key'] = self.PDNS_API_KEY try: jdata = utils.fetch_json( urljoin( self.PDNS_STATS_URL, self.API_EXTENDED_URL + '/servers/localhost/zones/{0}/cryptokeys'.format( domain.name)), headers=headers, timeout=int(Setting().get('pdns_api_timeout')), method='GET') if 'error' in jdata: return { 'status': 'error', 'msg': 'DNSSEC is not enabled for this domain' } else: return {'status': 'ok', 'dnssec': jdata} except Exception as e: current_app.logger.error( 'Cannot get domain dnssec. DETAIL: {0}'.format(e)) return { 'status': 'error', 'msg': 'There was something wrong, please contact administrator' } else: return {'status': 'error', 'msg': 'This domain doesnot exist'} def enable_domain_dnssec(self, domain_name): """ Enable domain DNSSEC """ domain = Domain.query.filter(Domain.name == domain_name).first() if domain: headers = {} headers['X-API-Key'] = self.PDNS_API_KEY try: # Enable API-RECTIFY for domain, BEFORE activating DNSSEC post_data = {"api_rectify": True} jdata = utils.fetch_json( urljoin( self.PDNS_STATS_URL, self.API_EXTENDED_URL + '/servers/localhost/zones/{0}'.format(domain.name)), headers=headers, timeout=int(Setting().get('pdns_api_timeout')), method='PUT', data=post_data) if 'error' in jdata: return { 'status': 'error', 'msg': 'API-RECTIFY could not be enabled for this domain', 'jdata': jdata } # Activate DNSSEC post_data = {"keytype": "ksk", "active": True} jdata = utils.fetch_json( urljoin( self.PDNS_STATS_URL, self.API_EXTENDED_URL + '/servers/localhost/zones/{0}/cryptokeys'.format( domain.name)), headers=headers, timeout=int(Setting().get('pdns_api_timeout')), method='POST', data=post_data) if 'error' in jdata: return { 'status': 'error', 'msg': 'Cannot enable DNSSEC for this domain. Error: {0}'. format(jdata['error']), 'jdata': jdata } return {'status': 'ok'} except Exception as e: current_app.logger.error( 'Cannot enable dns sec. DETAIL: {}'.format(e)) current_app.logger.debug(traceback.format_exc()) return { 'status': 'error', 'msg': 'There was something wrong, please contact administrator' } else: return {'status': 'error', 'msg': 'This domain does not exist'} def delete_dnssec_key(self, domain_name, key_id): """ Remove keys DNSSEC """ domain = Domain.query.filter(Domain.name == domain_name).first() if domain: headers = {} headers['X-API-Key'] = self.PDNS_API_KEY try: # Deactivate DNSSEC jdata = utils.fetch_json( urljoin( self.PDNS_STATS_URL, self.API_EXTENDED_URL + '/servers/localhost/zones/{0}/cryptokeys/{1}'.format( domain.name, key_id)), headers=headers, timeout=int(Setting().get('pdns_api_timeout')), method='DELETE') if jdata != True: return { 'status': 'error', 'msg': 'Cannot disable DNSSEC for this domain. Error: {0}'. format(jdata['error']), 'jdata': jdata } # Disable API-RECTIFY for domain, AFTER deactivating DNSSEC post_data = {"api_rectify": False} jdata = utils.fetch_json( urljoin( self.PDNS_STATS_URL, self.API_EXTENDED_URL + '/servers/localhost/zones/{0}'.format(domain.name)), headers=headers, timeout=int(Setting().get('pdns_api_timeout')), method='PUT', data=post_data) if 'error' in jdata: return { 'status': 'error', 'msg': 'API-RECTIFY could not be disabled for this domain', 'jdata': jdata } return {'status': 'ok'} except Exception as e: current_app.logger.error( 'Cannot delete dnssec key. DETAIL: {0}'.format(e)) current_app.logger.debug(traceback.format_exc()) return { 'status': 'error', 'msg': 'There was something wrong, please contact administrator', 'domain': domain.name, 'id': key_id } else: return {'status': 'error', 'msg': 'This domain doesnot exist'} def assoc_account(self, account_id): """ Associate domain with a domain, specified by account id """ domain_name = self.name # Sanity check - domain name if domain_name == "": return {'status': False, 'msg': 'No domain name specified'} # read domain and check that it exists domain = Domain.query.filter(Domain.name == domain_name).first() if not domain: return {'status': False, 'msg': 'Domain does not exist'} headers = {} headers['X-API-Key'] = self.PDNS_API_KEY account_name = Account().get_name_by_id(account_id) post_data = {"account": account_name} try: jdata = utils.fetch_json(urljoin( self.PDNS_STATS_URL, self.API_EXTENDED_URL + '/servers/localhost/zones/{0}'.format(domain_name)), headers=headers, timeout=int( Setting().get('pdns_api_timeout')), method='PUT', data=post_data) if 'error' in jdata.keys(): current_app.logger.error(jdata['error']) return {'status': 'error', 'msg': jdata['error']} else: self.update() msg_str = 'Account changed for domain {0} successfully' current_app.logger.info(msg_str.format(domain_name)) return {'status': 'ok', 'msg': 'account changed successfully'} except Exception as e: current_app.logger.debug(e) current_app.logger.debug(traceback.format_exc()) msg_str = 'Cannot change account for domain {0}' current_app.logger.error(msg_str.format(domain_name)) return { 'status': 'error', 'msg': 'Cannot change account for this domain.' } def get_account(self): """ Get current account associated with this domain """ domain = Domain.query.filter(Domain.name == self.name).first() return domain.account def is_valid_access(self, user_id): """ Check if the user is allowed to access this domain name """ return db.session.query(Domain) \ .outerjoin(DomainUser, Domain.id == DomainUser.domain_id) \ .outerjoin(Account, Domain.account_id == Account.id) \ .outerjoin(AccountUser, Account.id == AccountUser.account_id) \ .filter( db.or_( DomainUser.user_id == user_id, AccountUser.user_id == user_id )).filter(Domain.id == self.id).first()