Attachment #3861 for bug #23945

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# vim: set fileencoding=utf-8 et sw=4 ts=4 :

ARPA_IP4 = '.in-addr.arpa'
ARPA_IP6 = '.ip6.arpa'

def makeContactPerson(obj, arg):
    """Create contact Email-address for domain."""
    domain = obj.position.getDomain()
    return 'root@%s.' % (domain.replace('dc=', '').replace(',','.'),)

def unescapeSOAemail(email):
    r"""
    Un-escape Email-address from DNS SOA record.
    >>> unescapeSOAemail(r'first\.last.domain.tld')
    'first.last@domain.tld'
    """
    ret = ''
    i = 0
    while i < len(email):
        if email[i] == '\\':
            i += 1
            if i >= len(email):
                raise ValueError()
        elif email[i] == '.':
            i += 1
            if i >= len(email):
                raise ValueError()
            ret += '@'
            ret += email[i:]
            return ret
        ret += email[i]
        i += 1
    raise ValueError()

def escapeSOAemail(email):
    r"""
    Escape Email-address for DNS SOA record.
    >>> escapeSOAemail('first.last@domain.tld')
    'first\\.last.domain.tld'
    """
    SPECIAL_CHARACTERS = set('"(),.:;<>@[\\]')
    if not '@' in email:
        raise ValueError()
    (local, domain) = email.rsplit('@', 1)
    tmp = ''
    for c in local:
        if c in SPECIAL_CHARACTERS:
            tmp += '\\'
        tmp += c
    local = tmp
    return local + '.' + domain

if __name__ == '__main__':
    import doctest
    doctest.testmod()




# /usr/share/common-licenses/AGPL-3; if not, see
# <http://www.gnu.org/licenses/>.

import re

from univention.admin.layout import Tab, Group
from univention.admin import configRegistry

import univention.admin.filter
import univention.admin.handlers
import univention.admin.localization
from univention.admin.handlers.dns import ARPA_IP4, ARPA_IP6, escapeSOAemail, unescapeSOAemail

translation=univention.admin.localization.translation('univention.admin.handlers.dns')
_=translation.translate

def makeContactPerson(object, arg):
	domain=object.position.getDomain()
	return 'root@%s.' %(domain.replace(',dc=','.').replace('dc=',''))

module='dns/forward_zone'
operations=['add','edit','remove','search']
usewizard=1


		univention.admin.handlers.simpleLdap.__init__(self, co, lo, position, dn, superordinate, attributes = attributes )

	def unescapeSOAemail(self, email):
		ret = ''
		i = 0
		while i < len(email):
			if email[i] == '\\':
				i += 1
				if i >= len(email):
					raise ValueError()
			elif email[i] == '.':
				i += 1
				if i >= len(email):
					raise ValueError()
				ret += '@'
				ret += email[i:]
				return ret
			ret += email[i]
			i += 1
		raise ValueError()

	def escapeSOAemail(self, email):
		SPECIAL_CHARACTERS = set('"(),.:;<>@[\\]')
		if not '@' in email:
			raise ValueError()
		(local, domain, ) = email.rsplit('@', 1)
		tmp = ''
		for c in local:
			if c in SPECIAL_CHARACTERS:
				tmp += '\\'
			tmp += c
		local = tmp
		return local + '.' + domain

	def open(self):
		univention.admin.handlers.simpleLdap.open(self)
		self.info['a'] = []


		soa=self.oldattr.get('sOARecord',[''])[0].split(' ')
		if len(soa) > 6:
			self['contact'] = unescapeSOAemail(soa[1])
			self['serial'] = soa[2]
			self['refresh'] = univention.admin.mapping.unmapUNIX_TimeInterval( soa[3] )
			self['retry'] = univention.admin.mapping.unmapUNIX_TimeInterval( soa[4] )
			self['expire'] = univention.admin.mapping.unmapUNIX_TimeInterval( soa[5] )

		ml=univention.admin.handlers.simpleLdap._ldap_modlist(self)
		if self.hasChanged(['nameserver', 'contact', 'serial', 'refresh', 'retry', 'expire', 'ttl']):
			if self['contact'] and not self['contact'].endswith('.'):
				self['contact'] += '.'
			if len (self['nameserver'][0]) > 0 \
				and ':' not in self['nameserver'][0] \
				and '.' in self['nameserver'][0] \
				and not self['nameserver'][0].endswith('.'):
				self['nameserver'][0] += '.'
			refresh = univention.admin.mapping.mapUNIX_TimeInterval( self[ 'refresh' ] )
			retry = univention.admin.mapping.mapUNIX_TimeInterval( self[ 'retry' ] )
			expire = univention.admin.mapping.mapUNIX_TimeInterval( self[ 'expire' ] )
			ttl = univention.admin.mapping.mapUNIX_TimeInterval( self[ 'ttl' ] )
			soa='%s %s %s %s %s %s %s' % (self['nameserver'][0], escapeSOAemail(self['contact']), self['serial'], refresh, retry, expire, ttl )
			ml.append(('sOARecord', self.oldattr.get('sOARecord', []), [soa]))

		oldAddresses = self.oldinfo.get('a')

	filter=univention.admin.filter.conjunction('&', [
		univention.admin.filter.expression('objectClass', 'dNSZone'),
		univention.admin.filter.expression('relativeDomainName', '@'),
		univention.admin.filter.conjunction('!', [univention.admin.filter.expression('zoneName', '*%s' % ARPA_IP4)]),
		univention.admin.filter.conjunction('!', [univention.admin.filter.expression('zoneName', '*%s' % ARPA_IP6)]),
		])

	if filter_s:

		res.append((object(co, lo, None, dn=dn, superordinate=superordinate, attributes = attrs )))
	return res


def identify(dn, attr, canonical=0):
	return 'dNSZone' in attr.get('objectClass', []) and ['@'] == attr.get('relativeDomainName', []) and not attr['zoneName'][0].endswith(ARPA_IP4) and not attr['zoneName'][0].endswith(ARPA_IP6)




# /usr/share/common-licenses/AGPL-3; if not, see
# <http://www.gnu.org/licenses/>.

import string
import types

from univention.admin.layout import Tab, Group
from univention.admin import configRegistry

import univention.admin.filter
import univention.admin.handlers
import univention.admin.localization
from univention.admin.handlers.dns import ARPA_IP4, ARPA_IP6, escapeSOAemail, unescapeSOAemail

translation=univention.admin.localization.translation('univention.admin.handlers.dns')
_=translation.translate

]

def mapSubnet(subnet):
	"""
	Map subnet to reverse zone.
	>>> mapSubnet('0123:4567:89ab:cdef')
	'f.e.d.c.b.a.9.8.7.6.5.4.3.2.1.0.ip6.arpa'
	>>> mapSubnet('1.2.3')
	'3.2.1.in-addr.arpa'
	"""
	if ':' in subnet: # IPv6
		return '%s%s' % ('.'.join(reversed(subnet.replace(':', ''))), ARPA_IP6)
	else:
		q=subnet.split('.')
		q.reverse()
		return '%s%s' % ('.'.join(q), ARPA_IP4)

def unmapSubnet(zone):
	"""
	Map reverse zone to subnet.
	>>> unmapSubnet('f.e.d.c.b.a.9.8.7.6.5.4.3.2.1.0.ip6.arpa')
	'0123:4567:89ab:cdef'
	>>> unmapSubnet('3.2.1.in-addr.arpa')
	'1.2.3'
	"""
	if isinstance(zone, list):
		zone=zone[0]
	if zone.endswith(ARPA_IP6): # IPv6
		zone = zone[:-len(ARPA_IP6)]
		zone = list(reversed(zone.split('.')))
		return ':'.join([''.join(zone[i:i+4]) for i in xrange(0, len(zone), 4)])
	elif zone.endswith(ARPA_IP4): # IPv4
		zone = zone[:-len(ARPA_IP4)]
		q=zone.split('.')
		q.reverse()
		return '.'.join(q)
	else:
		raise ValueError('Neither an IPv4 nor an IPv& address')

mapping=univention.admin.mapping.mapping()
mapping.register('subnet', 'zoneName', mapSubnet, unmapSubnet)


		soa=self.oldattr.get('sOARecord',[''])[0].split(' ')
		if len(soa) > 6:
			self['contact'] = unescapeSOAemail(soa[1])
			self['serial'] = soa[2]
			self['refresh'] = univention.admin.mapping.unmapUNIX_TimeInterval( soa[3] )
			self['retry'] = univention.admin.mapping.unmapUNIX_TimeInterval( soa[4] )

	def _ldap_modlist(self):
		ml=univention.admin.handlers.simpleLdap._ldap_modlist(self)
		if self.hasChanged(['nameserver', 'contact', 'serial', 'refresh', 'retry', 'expire', 'ttl']):
			if self['contact'] and not self['contact'].endswith('.'):
				self['contact'] += '.'
			if len(self['nameserver'][0]) > 0 \
				and ':' not in self['nameserver'][0] \
				and '.' in self['nameserver'][0] \
				and not self['nameserver'][0].endswith('.'):
				self['nameserver'][0] += '.'
			refresh = univention.admin.mapping.mapUNIX_TimeInterval( self[ 'refresh' ] )
			retry = univention.admin.mapping.mapUNIX_TimeInterval( self[ 'retry' ] )
			expire = univention.admin.mapping.mapUNIX_TimeInterval( self[ 'expire' ] )
			ttl = univention.admin.mapping.mapUNIX_TimeInterval( self[ 'ttl' ] )
			soa = '%s %s %s %s %s %s %s' % (self['nameserver'][0], escapeSOAemail(self['contact']), self['serial'], refresh, retry, expire, ttl)
			ml.append(('sOARecord', self.oldattr.get('sOARecord', []), soa))
		return ml


		univention.admin.filter.expression('objectClass', 'dNSZone'),
		univention.admin.filter.expression('relativeDomainName', '@'),
		univention.admin.filter.conjunction('|', [
			univention.admin.filter.expression('zoneName', '*%s' % ARPA_IP4),
			univention.admin.filter.expression('zoneName', '*%s' % ARPA_IP6)
			]),
		])


	return res

def identify(dn, attr):

	return 'dNSZone' in attr.get('objectClass', []) and\
		['@'] == attr.get('relativeDomainName', []) and\
		(attr['zoneName'][0].endswith(ARPA_IP4) or attr['zoneName'][0].endswith(ARPA_IP6))

def quickDescription(rdn):

	return unmapSubnet(rdn)

if __name__ == '__main__':
    import doctest
    doctest.testmod()

Return to bug 23945