freeipa/ipaserver/ipaldap.py
Petr Viktorin 994563bfe9 Provide 'protocol' argument to IPAdmin
The ancient IPAdmin class used some heuristics to determine the protocol
to connect with (ldap, ldaps, or ldapi). In turn, some calling code used
questionable mechanisms to get the correct protocol: in
ipaserver/install/replication.py, the CA cert was either passed to the
constructor or added to the class afterwards, to get ldap:// or ldaps://.

Add an explicit protocol argument and only fall back to backwards-compatible
guessing if it is not given.
2012-11-23 12:19:20 +01:00

790 lines
29 KiB
Python

# Authors: Rich Megginson <richm@redhat.com>
# Rob Crittenden <rcritten@redhat.com>
# John Dennis <jdennis@redhat.com>
#
# Copyright (C) 2007 Red Hat
# see file 'COPYING' for use and warranty information
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
import sys
import os
import os.path
import socket
import ldif
import re
import string
import ldap
import cStringIO
import time
import struct
import ldap.sasl
import ldapurl
from ldap.controls import LDAPControl
from ldap.ldapobject import SimpleLDAPObject
from ipapython.ipa_log_manager import *
from ipapython import ipautil
from ipalib import errors
from ipapython.ipautil import format_netloc, wait_for_open_socket, wait_for_open_ports
from ipapython.dn import DN
from ipapython.entity import Entity
from ipaserver.plugins.ldap2 import IPASimpleLDAPObject
# Global variable to define SASL auth
SASL_AUTH = ldap.sasl.sasl({},'GSSAPI')
DEFAULT_TIMEOUT = 10
class IPAEntryLDAPObject(IPASimpleLDAPObject):
def __init__(self, *args, **kwds):
IPASimpleLDAPObject.__init__(self, *args, **kwds)
def result(self, msgid=ldap.RES_ANY, all=1, timeout=None):
objtype, data = IPASimpleLDAPObject.result(self, msgid, all, timeout)
# data is either a 2-tuple or a list of 2-tuples
if data:
if isinstance(data, tuple):
return objtype, Entry(data)
elif isinstance(data, list):
return objtype, [Entry(x) for x in data]
else:
raise TypeError, "unknown data type %s returned by result" % type(data)
else:
return objtype, data
def add(self, dn, modlist):
if isinstance(dn, Entry):
return IPASimpleLDAPObject.add(self, dn.dn, dn.toTupleList())
else:
return IPASimpleLDAPObject.add(self, dn, modlist)
def add_s(self, dn, modlist):
if isinstance(dn, Entry):
return IPASimpleLDAPObject.add_s(self, dn.dn, dn.toTupleList())
else:
return IPASimpleLDAPObject.add_s(self, dn, modlist)
def add_ext(self, dn, modlist, serverctrls=None, clientctrls=None):
if isinstance(dn, Entry):
return IPASimpleLDAPObject.add_ext(self, dn.dn, dn.toTupleList(), serverctrls, clientctrls)
else:
return IPASimpleLDAPObject.add_ext(self, dn, modlist, serverctrls, clientctrls)
def add_ext_s(self, dn, modlist, serverctrls=None, clientctrls=None):
if isinstance(dn, Entry):
return IPASimpleLDAPObject.add_ext_s(self, dn.dn, dn.toTupleList(), serverctrls, clientctrls)
else:
return IPASimpleLDAPObject.add_ext_s(self, dn, modlist, serverctrls, clientctrls)
class Entry:
"""
This class represents an LDAP Entry object. An LDAP entry consists of
a DN and a list of attributes. Each attribute consists of a name and
a list of values. In python-ldap, entries are returned as a list of
2-tuples. Instance variables:
* dn - DN object - the DN of the entry
* data - CIDict - case insensitive dict of the attributes and values
"""
def __init__(self,entrydata):
"""data is the raw data returned from the python-ldap result method, which is
a search result entry or a reference or None.
If creating a new empty entry, data is the string DN."""
if entrydata:
if isinstance(entrydata,tuple):
self.dn = entrydata[0]
self.data = ipautil.CIDict(entrydata[1])
elif isinstance(entrydata,DN):
self.dn = entrydata
self.data = ipautil.CIDict()
elif isinstance(entrydata, basestring):
self.dn = DN(entrydata)
self.data = ipautil.CIDict()
else:
raise TypeError("entrydata must be 2-tuple, DN, or basestring, got %s" % type(entrydata))
else:
self.dn = DN()
self.data = ipautil.CIDict()
assert isinstance(self.dn, DN)
dn = ipautil.dn_attribute_property('_dn')
def __nonzero__(self):
"""This allows us to do tests like if entry: returns false if there is no data,
true otherwise"""
return self.data != None and len(self.data) > 0
def hasAttr(self,name):
"""Return True if this entry has an attribute named name, False otherwise"""
return self.data and self.data.has_key(name)
def getValues(self,name):
"""Get the list (array) of values for the attribute named name"""
return self.data.get(name)
def getValue(self,name, default=None):
"""Get the first value for the attribute named name"""
value = self.data.get(name, default)
if isinstance(value, (list, tuple)):
return value[0]
return value
def setValue(self, name, *value):
"""
Set a value on this entry.
The value passed in may be a single value, several values, or a
single sequence. For example:
* ent.setValue('name', 'value')
* ent.setValue('name', 'value1', 'value2', ..., 'valueN')
* ent.setValue('name', ['value1', 'value2', ..., 'valueN'])
* ent.setValue('name', ('value1', 'value2', ..., 'valueN'))
Since value is a tuple, we may have to extract a list or tuple from
that tuple as in the last two examples above.
"""
if isinstance(value[0],list) or isinstance(value[0],tuple):
self.data[name] = value[0]
else:
self.data[name] = value
setValues = setValue
def delAttr(self, name):
"""
Entirely remove an attribute of this entry.
"""
if self.hasAttr(name):
del self.data[name]
def toTupleList(self):
"""Convert the attrs and values to a list of 2-tuples. The first element
of the tuple is the attribute name. The second element is either a
single value or a list of values."""
r = []
for i in self.data.iteritems():
n = ipautil.utf8_encode_values(i[1])
r.append((i[0], n))
return r
def toDict(self):
"""Convert the attrs and values to a dict. The dict is keyed on the
attribute name. The value is either single value or a list of values."""
assert isinstance(self.dn, DN)
result = ipautil.CIDict(self.data)
for i in result.keys():
result[i] = ipautil.utf8_encode_values(result[i])
result['dn'] = self.dn
return result
def __str__(self):
"""Convert the Entry to its LDIF representation"""
return self.__repr__()
# the ldif class base64 encodes some attrs which I would rather see in
# raw form - to encode specific attrs as base64, add them to the list below
ldif.safe_string_re = re.compile('^$')
base64_attrs = ['nsstate', 'krbprincipalkey', 'krbExtraData']
def __repr__(self):
"""Convert the Entry to its LDIF representation"""
sio = cStringIO.StringIO()
# what's all this then? the unparse method will currently only accept
# a list or a dict, not a class derived from them. self.data is a
# cidict, so unparse barfs on it. I've filed a bug against python-ldap,
# but in the meantime, we have to convert to a plain old dict for
# printing
# I also don't want to see wrapping, so set the line width really high
# (1000)
newdata = {}
newdata.update(self.data)
ldif.LDIFWriter(sio,Entry.base64_attrs,1000).unparse(str(self.dn),newdata)
return sio.getvalue()
class IPAdmin(IPAEntryLDAPObject):
def __localinit(self):
if self.protocol == 'ldaps':
IPAEntryLDAPObject.__init__(self,'ldaps://%s' % format_netloc(self.host, self.port))
elif self.protocol == 'ldapi':
IPAEntryLDAPObject.__init__(self,'ldapi://%%2fvar%%2frun%%2fslapd-%s.socket' % "-".join(self.realm.split(".")))
elif self.protocol == 'ldap':
IPAEntryLDAPObject.__init__(self,'ldap://%s' % format_netloc(self.host, self.port))
else:
raise ValueError('Protocol %r not supported' % self.protocol)
def __guess_protocol(self):
"""Return the protocol to use based on flags passed to the constructor
Only used when "protocol" is not specified explicitly.
If a CA certificate is provided then it is assumed that we are
doing SSL client authentication with proxy auth.
If a CA certificate is not present then it is assumed that we are
using a forwarded kerberos ticket for SASL auth. SASL provides
its own encryption.
"""
if self.cacert is not None:
return 'ldaps'
elif self.ldapi:
return 'ldapi'
else:
return 'ldap'
def __init__(self, host='', port=389, cacert=None, bindcert=None,
bindkey=None, proxydn=None, debug=None, ldapi=False,
realm=None, protocol=None):
"""We just set our instance variables and wrap the methods - the real
work is done in __localinit. This is separated out this way so
that we can call it from places other than instance creation
e.g. when we just need to reconnect
"""
log_mgr.get_logger(self, True)
if debug and debug.lower() == "on":
ldap.set_option(ldap.OPT_DEBUG_LEVEL,255)
if cacert is not None:
ldap.set_option(ldap.OPT_X_TLS_CACERTFILE,cacert)
if bindcert is not None:
ldap.set_option(ldap.OPT_X_TLS_CERTFILE,bindcert)
if bindkey is not None:
ldap.set_option(ldap.OPT_X_TLS_KEYFILE,bindkey)
self.port = port
self.host = host
self.cacert = cacert
self.bindcert = bindcert
self.bindkey = bindkey
self.proxydn = proxydn
self.ldapi = ldapi
self.realm = realm
self.suffixes = {}
self.protocol = protocol or self.__guess_protocol()
self.__localinit()
def __lateinit(self):
"""
This is executed after the connection is bound to fill in some useful
values.
"""
try:
ent = self.getEntry(DN(('cn', 'config'), ('cn', 'ldbm database'), ('cn', 'plugins'), ('cn', 'config')),
ldap.SCOPE_BASE, '(objectclass=*)',
[ 'nsslapd-directory' ])
self.dbdir = os.path.dirname(ent.getValue('nsslapd-directory'))
except ldap.LDAPError, e:
self.__handle_errors(e)
def __str__(self):
return self.host + ":" + str(self.port)
def __get_server_controls(self):
"""Create the proxy user server control. The control has the form
0x04 = Octet String
4|0x80 sets the length of the string length field at 4 bytes
the struct() gets us the length in bytes of string self.proxydn
self.proxydn is the proxy dn to send"""
if self.proxydn is not None:
proxydn = chr(0x04) + chr(4|0x80) + struct.pack('l', socket.htonl(len(self.proxydn))) + self.proxydn;
# Create the proxy control
sctrl=[]
sctrl.append(LDAPControl('2.16.840.1.113730.3.4.18',True,proxydn))
else:
sctrl=None
return sctrl
def __handle_errors(self, e, **kw):
"""
Centralize error handling in one place.
e is the error to be raised
**kw is an exception-specific list of options
"""
if not isinstance(e,ldap.TIMEOUT):
desc = e.args[0]['desc'].strip()
info = e.args[0].get('info','').strip()
arg_desc = kw.get('arg_desc')
if arg_desc is not None:
info += " arguments: %s" % arg_desc
else:
desc = ''
info = ''
try:
# re-raise the error so we can handle it
raise e
except ldap.NO_SUCH_OBJECT, e:
arg_desc = kw.get('arg_desc', "entry not found")
raise errors.NotFound(reason=arg_desc)
except ldap.ALREADY_EXISTS, e:
raise errors.DuplicateEntry()
except ldap.CONSTRAINT_VIOLATION, e:
# This error gets thrown by the uniqueness plugin
if info.startswith('Another entry with the same attribute value already exists'):
raise errors.DuplicateEntry()
else:
raise errors.DatabaseError(desc=desc,info=info)
except ldap.INSUFFICIENT_ACCESS, e:
raise errors.ACIError(info=info)
except ldap.NO_SUCH_ATTRIBUTE:
# this is raised when a 'delete' attribute isn't found.
# it indicates the previous attribute was removed by another
# update, making the oldentry stale.
raise errors.MidairCollision()
except ldap.ADMINLIMIT_EXCEEDED, e:
raise errors.LimitsExceeded()
except ldap.SIZELIMIT_EXCEEDED, e:
raise errors.LimitsExceeded()
except ldap.TIMELIMIT_EXCEEDED, e:
raise errors.LimitsExceeded()
except ldap.LDAPError, e:
raise errors.DatabaseError(desc=desc,info=info)
def __wait_for_connection(self, timeout):
lurl = ldapurl.LDAPUrl(self.uri)
if lurl.urlscheme == 'ldapi':
wait_for_open_socket(lurl.hostport, timeout)
else:
(host,port) = lurl.hostport.split(':')
wait_for_open_ports(host, int(port), timeout)
def __bind_with_wait(self, bind_func, timeout, *args, **kwargs):
try:
bind_func(*args, **kwargs)
except (ldap.CONNECT_ERROR, ldap.SERVER_DOWN), e:
if not timeout or 'TLS' in e.args[0].get('info', ''):
# No connection to continue on if we have a TLS failure
# https://bugzilla.redhat.com/show_bug.cgi?id=784989
raise e
try:
self.__wait_for_connection(timeout)
except:
raise e
bind_func(*args, **kwargs)
def toLDAPURL(self):
return "ldap://%s/" % format_netloc(self.host, self.port)
def set_proxydn(self, proxydn):
self.proxydn = proxydn
def set_krbccache(self, krbccache, principal):
try:
if krbccache is not None:
os.environ["KRB5CCNAME"] = krbccache
self.sasl_interactive_bind_s(None, SASL_AUTH)
self.principal = principal
self.proxydn = None
except ldap.LDAPError, e:
self.__handle_errors(e)
def do_simple_bind(self, binddn=DN(('cn', 'directory manager')), bindpw="", timeout=DEFAULT_TIMEOUT):
self.binddn = binddn # FIXME, self.binddn & self.bindpwd never referenced.
self.bindpwd = bindpw
self.__bind_with_wait(self.simple_bind_s, timeout, binddn, bindpw)
self.__lateinit()
def do_sasl_gssapi_bind(self, timeout=DEFAULT_TIMEOUT):
self.__bind_with_wait(self.sasl_interactive_bind_s, timeout, None, SASL_AUTH)
self.__lateinit()
def do_external_bind(self, user_name=None, timeout=DEFAULT_TIMEOUT):
auth_tokens = ldap.sasl.external(user_name)
self.__bind_with_wait(self.sasl_interactive_bind_s, timeout, None, auth_tokens)
self.__lateinit()
def getEntry(self, base, scope, filterstr='(objectClass=*)', attrlist=None, attrsonly=0):
"""This wraps the search function. It is common to just get one entry"""
sctrl = self.__get_server_controls()
if sctrl is not None:
self.set_option(ldap.OPT_SERVER_CONTROLS, sctrl)
try:
res = self.search(base, scope, filterstr, attrlist, attrsonly)
objtype, obj = self.result(res)
except ldap.LDAPError, e:
arg_desc = 'base="%s", scope=%s, filterstr="%s"' % (base, scope, filterstr)
self.__handle_errors(e, arg_desc=arg_desc)
if not obj:
arg_desc = 'base="%s", scope=%s, filterstr="%s"' % (base, scope, filterstr)
raise errors.NotFound(reason=arg_desc)
elif isinstance(obj,Entry):
return obj
else: # assume list/tuple
return obj[0]
def getList(self, base, scope, filterstr='(objectClass=*)', attrlist=None, attrsonly=0):
"""This wraps the search function to find multiple entries."""
sctrl = self.__get_server_controls()
if sctrl is not None:
self.set_option(ldap.OPT_SERVER_CONTROLS, sctrl)
try:
res = self.search(base, scope, filterstr, attrlist, attrsonly)
objtype, obj = self.result(res)
except ldap.LDAPError, e:
arg_desc = 'base="%s", scope=%s, filterstr="%s"' % (base, scope, filterstr)
self.__handle_errors(e, arg_desc=arg_desc)
if not obj:
arg_desc = 'base="%s", scope=%s, filterstr="%s"' % (base, scope, filterstr)
raise errors.NotFound(reason=arg_desc)
entries = []
for s in obj:
entries.append(s)
return entries
def getListAsync(self, base, scope, filterstr='(objectClass=*)', attrlist=None, attrsonly=0,
serverctrls=None, clientctrls=None, timeout=-1, sizelimit=0):
"""This version performs an asynchronous search, to allow
results even if we hit a limit.
It returns a list: counter followed by the results.
If the results are truncated, counter will be set to -1.
"""
sctrl = self.__get_server_controls()
if sctrl is not None:
self.set_option(ldap.OPT_SERVER_CONTROLS, sctrl)
entries = []
partial = 0
try:
msgid = self.search_ext(base, scope, filterstr, attrlist, attrsonly,
serverctrls, clientctrls, timeout, sizelimit)
objtype, result_list = self.result(msgid, 0)
while result_list:
for result in result_list:
entries.append(result)
objtype, result_list = self.result(msgid, 0)
except (ldap.ADMINLIMIT_EXCEEDED, ldap.SIZELIMIT_EXCEEDED,
ldap.TIMELIMIT_EXCEEDED), e:
partial = 1
except ldap.LDAPError, e:
arg_desc = 'base="%s", scope=%s, filterstr="%s", timeout=%s, sizelimit=%s' % \
(base, scope, filterstr, timeout, sizelimit)
self.__handle_errors(e, arg_desc=arg_desc)
if not entries:
arg_desc = 'base="%s", scope=%s, filterstr="%s"' % (base, scope, filterstr)
raise errors.NotFound(reason=arg_desc)
if partial == 1:
counter = -1
else:
counter = len(entries)
return [counter] + entries
def addEntry(self, entry):
"""This wraps the add function. It assumes that the entry is already
populated with all of the desired objectclasses and attributes"""
if not isinstance(entry, (Entry, Entity)):
raise TypeError('addEntry expected an Entry or Entity object, got %s instead' % entry.__class__)
sctrl = self.__get_server_controls()
try:
if sctrl is not None:
self.set_option(ldap.OPT_SERVER_CONTROLS, sctrl)
self.add_s(entry.dn, entry.toTupleList())
except ldap.LDAPError, e:
arg_desc = 'entry=%s: %s' % (entry.dn, entry.toTupleList())
self.__handle_errors(e, arg_desc=arg_desc)
return True
def updateRDN(self, dn, newrdn):
"""Wrap the modrdn function."""
assert isinstance(dn, DN)
assert isinstance(newrdn, DN)
sctrl = self.__get_server_controls()
if dn == newrdn:
# no need to report an error
return True
try:
if sctrl is not None:
self.set_option(ldap.OPT_SERVER_CONTROLS, sctrl)
self.modrdn_s(dn, newrdn, delold=1)
except ldap.LDAPError, e:
self.__handle_errors(e)
return True
def updateEntry(self,dn,oldentry,newentry):
"""This wraps the mod function. It assumes that the entry is already
populated with all of the desired objectclasses and attributes"""
assert isinstance(dn, DN)
sctrl = self.__get_server_controls()
modlist = self.generateModList(oldentry, newentry)
if len(modlist) == 0:
raise errors.EmptyModlist
try:
if sctrl is not None:
self.set_option(ldap.OPT_SERVER_CONTROLS, sctrl)
self.modify_s(dn, modlist)
except ldap.LDAPError, e:
self.__handle_errors(e)
return True
def generateModList(self, old_entry, new_entry):
"""A mod list generator that computes more precise modification lists
than the python-ldap version. For single-value attributes always
use a REPLACE operation, otherwise use ADD/DEL.
"""
# Some attributes, like those in cn=config, need to be replaced
# not deleted/added.
FORCE_REPLACE_ON_UPDATE_ATTRS = ('nsslapd-ssl-check-hostname', 'nsslapd-lookthroughlimit', 'nsslapd-idlistscanlimit', 'nsslapd-anonlimitsdn', 'nsslapd-minssf-exclude-rootdse')
modlist = []
old_entry = ipautil.CIDict(old_entry)
new_entry = ipautil.CIDict(new_entry)
keys = set(map(string.lower, old_entry.keys()))
keys.update(map(string.lower, new_entry.keys()))
for key in keys:
new_values = new_entry.get(key, [])
if not(isinstance(new_values,list) or isinstance(new_values,tuple)):
new_values = [new_values]
new_values = filter(lambda value:value!=None, new_values)
old_values = old_entry.get(key, [])
if not(isinstance(old_values,list) or isinstance(old_values,tuple)):
old_values = [old_values]
old_values = filter(lambda value:value!=None, old_values)
# We used to convert to sets and use difference to calculate
# the changes but this did not preserve order which is important
# particularly for schema
adds = [x for x in new_values if x not in old_values]
removes = [x for x in old_values if x not in new_values]
if len(adds) == 0 and len(removes) == 0:
continue
is_single_value = self.get_single_value(key)
force_replace = False
if key in FORCE_REPLACE_ON_UPDATE_ATTRS or is_single_value:
force_replace = True
# You can't remove schema online. An add will automatically
# replace any existing schema.
if old_entry.get('dn', DN()) == DN(('cn', 'schema')):
if len(adds) > 0:
modlist.append((ldap.MOD_ADD, key, adds))
else:
if adds:
if force_replace:
modlist.append((ldap.MOD_REPLACE, key, adds))
else:
modlist.append((ldap.MOD_ADD, key, adds))
if removes:
if not force_replace:
modlist.append((ldap.MOD_DELETE, key, removes))
return modlist
def inactivateEntry(self,dn, has_key):
"""Rather than deleting entries we mark them as inactive.
has_key defines whether the entry already has nsAccountlock
set so we can determine which type of mod operation to run."""
assert isinstance(dn, DN)
sctrl = self.__get_server_controls()
modlist=[]
if has_key:
operation = ldap.MOD_REPLACE
else:
operation = ldap.MOD_ADD
modlist.append((operation, "nsAccountlock", "TRUE"))
try:
if sctrl is not None:
self.set_option(ldap.OPT_SERVER_CONTROLS, sctrl)
self.modify_s(dn, modlist)
except ldap.LDAPError, e:
self.__handle_errors(e)
return True
def deleteEntry(self, dn):
"""This wraps the delete function. Use with caution."""
assert isinstance(dn, DN)
sctrl = self.__get_server_controls()
try:
if sctrl is not None:
self.set_option(ldap.OPT_SERVER_CONTROLS, sctrl)
self.delete_s(dn)
except ldap.LDAPError, e:
arg_desc = 'dn=%s' % (dn)
self.__handle_errors(e, arg_desc=arg_desc)
return True
def modifyPassword(self, dn, oldpass, newpass):
"""Set the user password using RFC 3062, LDAP Password Modify Extended
Operation. This ends up calling the IPA password slapi plugin
handler so the Kerberos password gets set properly.
oldpass is not mandatory
"""
assert isinstance(dn, DN)
sctrl = self.__get_server_controls()
try:
if sctrl is not None:
self.set_option(ldap.OPT_SERVER_CONTROLS, sctrl)
self.passwd_s(dn, oldpass, newpass)
except ldap.LDAPError, e:
self.__handle_errors(e)
return True
def waitForEntry(self, dn, timeout=7200, attr='', quiet=True):
scope = ldap.SCOPE_BASE
filter = "(objectclass=*)"
attrlist = []
if attr:
filter = "(%s=*)" % attr
attrlist.append(attr)
timeout += int(time.time())
if isinstance(dn,Entry):
dn = dn.dn
assert isinstance(dn, DN)
# wait for entry and/or attr to show up
if not quiet:
sys.stdout.write("Waiting for %s %s:%s " % (self,dn,attr))
sys.stdout.flush()
entry = None
while not entry and int(time.time()) < timeout:
try:
entry = self.getEntry(dn, scope, filter, attrlist)
except ldap.NO_SUCH_OBJECT:
pass # no entry yet
except ldap.LDAPError, e: # badness
print "\nError reading entry", dn, e
break
if not entry:
if not quiet:
sys.stdout.write(".")
sys.stdout.flush()
time.sleep(1)
if not entry and int(time.time()) > timeout:
print "\nwaitForEntry timeout for %s for %s" % (self,dn)
elif entry and not quiet:
print "\nThe waited for entry is:", entry
elif not entry:
print "\nError: could not read entry %s from %s" % (dn,self)
return entry
def checkTask(self, dn, dowait=False, verbose=False):
"""check task status - task is complete when the nsTaskExitCode attr
is set return a 2 tuple (true/false,code) first is false if task is
running, true if done - if true, second is the exit code - if dowait
is True, this function will block until the task is complete
"""
assert isinstance(dn, DN)
attrlist = ['nsTaskLog', 'nsTaskStatus', 'nsTaskExitCode', 'nsTaskCurrentItem', 'nsTaskTotalItems']
done = False
exitCode = 0
while not done:
try:
entry = self.getEntry(dn, ldap.SCOPE_BASE, "(objectclass=*)", attrlist)
except errors.NotFound:
break
if verbose:
print entry
if entry.getValue('nsTaskExitCode'):
exitCode = int(entry.getValue('nsTaskExitCode'))
done = True
if dowait: time.sleep(1)
else: break
return (done, exitCode)
def get_single_value(self, attr):
"""
Check the schema to see if the attribute is single-valued.
If the attribute is in the schema then returns True/False
If there is a problem loading the schema or the attribute is
not in the schema return None
"""
obj = self.schema.get_obj(ldap.schema.AttributeType, attr)
return obj and obj.single_value
def get_dns_sorted_by_length(self, entries, reverse=False):
"""
Sorts a list of entries [(dn, entry_attrs)] based on their DN.
Entries within the same node are not sorted in any meaningful way.
If Reverse is set to True, leaf entries are returned first. This is
useful to perform recursive deletes where you need to delete entries
starting from the leafs and go up to delete nodes only when all its
leafs are removed.
Returns a list of list of dn's. Every dn in the dn list has
the same number of RDN's. The outer list is sorted according
to the number of RDN's in each inner list.
Example:
[['cn=bob', cn=tom], ['cn=bob,ou=people', cn=tom,ou=people]]
dn's in list[0] have 1 RDN
dn's in list[1] have 2 RDN's
"""
res = dict()
for e in entries:
dn = e.dn
assert isinstance(dn, DN)
rdn_count = len(dn)
rdn_count_list = res.setdefault(rdn_count, [])
if dn not in rdn_count_list:
rdn_count_list.append(dn)
keys = res.keys()
keys.sort(reverse=reverse)
return map(res.get, keys)