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# service.py - service entry lookup routines
#
# Copyright (C) 2011 Arthur de Jong
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301 USA
import constants
import common
import struct
import ldap.filter
class ServiceRequest(common.Request):
filter = '(objectClass=ipService)'
attmap_cn = 'cn'
attmap_ipServicePort = 'ipServicePort'
attmap_ipServiceProtocol = 'ipServiceProtocol'
attributes = ( 'cn', 'ipServicePort', 'ipServiceProtocol' )
def __init__(self, *args):
super(ServiceRequest, self).__init__(*args)
self.protocol = None
def write(self, entry):
dn, attributes = entry
# get name
name = common.get_rdn_value(entry, self.attmap_cn)
names = attributes.get(self.attmap_cn, [])
if not names:
print 'Error: entry %s does not contain %s value' % ( dn, self.attmap_cn )
if self.name and self.name not in names + [ name, ]:
return # case of result entry did not match
if not name:
name = names.pop(0)
elif name in names:
names.remove(name)
# get port number
( port, ) = attributes.get(self.attmap_ipServicePort, [])
if not port:
print 'Error: entry %s does not contain %s value' % ( dn, self.attmap_ipServicePort)
port = int(port)
# get protocol
protocols = attributes.get(self.attmap_ipServiceProtocol, [])
if self.protocol:
if self.protocol not in protocols:
return
protocols = ( self.protocol, )
# write result
for protocol in protocols:
self.fp.write_int32(constants.NSLCD_RESULT_BEGIN)
self.fp.write_string(name)
self.fp.write_stringlist(names)
self.fp.write_int32(port)
self.fp.write_string(protocol)
class ServiceByNameRequest(ServiceRequest):
action = constants.NSLCD_ACTION_SERVICE_BYNAME
def read_parameters(self):
self.name = self.fp.read_string()
self.protocol = self.fp.read_string()
def mk_filter(self):
if self.protocol:
return '(&%s(%s=%s)(%s=%s))' % ( self.filter,
self.attmap_cn, ldap.filter.escape_filter_chars(self.name),
self.attmap_ipServiceProtocol, ldap.filter.escape_filter_chars(self.protocol) )
else:
return '(&%s(%s=%s))' % ( self.filter,
self.attmap_cn, ldap.filter.escape_filter_chars(self.name) )
class ServiceByNumberRequest(ServiceRequest):
action = constants.NSLCD_ACTION_SERVICE_BYNUMBER
def read_parameters(self):
self.number = self.fp.read_int32()
self.protocol = self.fp.read_string()
def mk_filter(self):
if self.protocol:
return '(&%s(%s=%d)(%s=%s))' % ( self.filter,
self.attmap_ipServicePort, self.number,
self.attmap_ipServiceProtocol, ldap.filter.escape_filter_chars(self.protocol) )
else:
return '(&%s(%s=%d))' % ( self.filter,
self.attmap_ipServicePort, self.number )
class ServiceAllRequest(ServiceRequest):
action = constants.NSLCD_ACTION_SERVICE_ALL
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