def addChild(self, rdn, attributes):
self._checkState()
a = []
if attributes.get('objectClass', None):
a.append(('objectClass', attributes['objectClass']))
del attributes['objectClass']
attributes = a + sorted(attributes.items())
del a
rdn = distinguishedname.RelativeDistinguishedName(rdn)
dn = distinguishedname.DistinguishedName(listOfRDNs=(rdn, ) +
self.dn.split())
ldapAttrs = []
for attrType, values in attributes:
ldapAttrType = pureldap.LDAPAttributeDescription(attrType)
lst = []
for value in values:
if (isinstance(value, six.text_type)):
value = value.encode('utf-8')
lst.append(pureldap.LDAPAttributeValue(value))
ldapValues = pureber.BERSet(lst)
ldapAttrs.append((ldapAttrType, ldapValues))
op = pureldap.LDAPAddRequest(entry=dn.getText(), attributes=ldapAttrs)
d = self.client.send(op)
d.addCallback(self._cbAddDone, dn)
return d
def test_add_fail_existsAlready(self):
self.server.dataReceived(
pureldap.LDAPMessage(
pureldap.LDAPAddRequest(
entry=self.thingie.dn.getText(),
attributes=[
(
pureldap.LDAPAttributeDescription("objectClass"),
pureber.BERSet(
value=[
pureldap.LDAPAttributeValue('something'),
])
)
]),
id=2).toWire())
self.assertEqual(
self.server.transport.value(),
pureldap.LDAPMessage(
pureldap.LDAPAddResponse(
resultCode=ldaperrors.LDAPEntryAlreadyExists.resultCode,
errorMessage=self.thingie.dn.getText()),
id=2).toWire())
# tree did not change
d = self.stuff.children()
d.addCallback(lambda actual: six.assertCountEqual(
self, actual, [self.thingie, self.another]))
return d
def test_add_success(self):
dn = 'cn=new,ou=stuff,dc=example,dc=com'
self.server.dataReceived(
str(
pureldap.LDAPMessage(pureldap.LDAPAddRequest(
entry=dn,
attributes=[
(pureldap.LDAPAttributeDescription("objectClass"),
pureber.BERSet(
value=[pureldap.LDAPAttributeValue('something')]))
]),
id=2)))
self.assertEquals(
self.server.transport.value(),
str(
pureldap.LDAPMessage(pureldap.LDAPAddResponse(
resultCode=ldaperrors.Success.resultCode),
id=2)))
# tree changed
d = self.stuff.children()
d.addCallback(self.assertItemsEqual, [
self.thingie, self.another,
inmemory.ReadOnlyInMemoryLDAPEntry(
'cn=new,ou=stuff,dc=example,dc=com',
{'objectClass': ['something']})
])
return d
def entry_to_attribs_(self, entry):
"""
Convert a simple mapping to the data structures required for an
entry in the DIT.
Returns: (dn, attributes)
"""
attribs = {}
dn = None
for prop, value in entry.items():
if prop == 'dn':
dn = value.encode('utf-8')
continue
msg = ("Account template value should be an iterable: "
"prop='{}', value='{}'").format(prop, value)
assert iterable_not_string(value), msg
attribs[prop] = set(value)
if dn is None:
raise Exception("Entry needs to include key, `dn`!")
ldap_attrs = []
for attrib, values in attribs.items():
ldap_attrib_type = pureldap.LDAPAttributeDescription(attrib)
l = []
for value in values:
if (isinstance(value, unicode)):
value = value.encode('utf-8')
l.append(pureldap.LDAPAttributeValue(value))
ldap_values = pureber.BERSet(l)
ldap_attrs.append((ldap_attrib_type, ldap_values))
return dn, ldap_attrs
def entry_to_attributes(entry):
"""
Convert a simple mapping to the data structures required for an
entry in the DIT.
Returns: (dn, attributes)
"""
attributes = {}
dn = None
for prop, value in entry.items():
if prop == "dn":
dn = value
continue
attributes.setdefault(prop, set()).add(value)
if dn is None:
raise Exception("Entry needs to include key, `dn`!")
ldap_attributes = []
for attrib, values in attributes.items():
ldap_attribute_type = pureldap.LDAPAttributeDescription(attrib)
ldap_attribute_values = []
for value in values:
ldap_attribute_values.append(pureldap.LDAPAttributeValue(value))
ldap_values = pureber.BERSet(ldap_attribute_values)
ldap_attributes.append((ldap_attribute_type, ldap_values))
return dn, ldap_attributes
def test_add_success(self):
dn = "cn=new,ou=stuff,dc=example,dc=com"
self.server.dataReceived(
pureldap.LDAPMessage(
pureldap.LDAPAddRequest(
entry=dn,
attributes=[(
pureldap.LDAPAttributeDescription("objectClass"),
pureber.BERSet(
value=[pureldap.LDAPAttributeValue("something")]),
)],
),
id=2,
).toWire())
self.assertEqual(
self.server.transport.value(),
pureldap.LDAPMessage(pureldap.LDAPAddResponse(
resultCode=ldaperrors.Success.resultCode),
id=2).toWire(),
)
# tree changed
d = self.stuff.children()
d.addCallback(lambda actual: self.assertCountEqual(
actual,
[
self.thingie,
self.another,
inmemory.ReadOnlyInMemoryLDAPEntry(
b"cn=new,ou=stuff,dc=example,dc=com",
{b"objectClass": [b"something"]},
),
],
))
return d
def asLDAP(self):
if self._LDAP_OP is None:
raise NotImplementedError("%s.asLDAP not implemented" %
self.__class__.__name__)
return str(
pureber.BERSequence([
pureber.BEREnumerated(self._LDAP_OP),
pureber.BERSequence([
pureldap.LDAPAttributeDescription(self.key),
pureber.BERSet(map(pureldap.LDAPString, list(self))),
]),
]))
def addChild(self, rdn, attributes):
self._checkState()
rdn = distinguishedname.RelativeDistinguishedName(rdn)
dn = distinguishedname.DistinguishedName(listOfRDNs=(rdn, ) +
self.dn.split())
ldapAttrs = []
for attrType, values in attributes.items():
ldapAttrType = pureldap.LDAPAttributeDescription(attrType)
l = []
for value in values:
l.append(pureldap.LDAPAttributeValue(value))
ldapValues = pureber.BERSet(l)
ldapAttrs.append((ldapAttrType, ldapValues))
op = pureldap.LDAPAddRequest(entry=str(dn), attributes=ldapAttrs)
d = self.client.send(op)
d.addCallback(self._cbAddDone, dn)
return d
def asLDAP(self):
if self._LDAP_OP is None:
raise NotImplementedError("%s.asLDAP not implemented"
% self.__class__.__name__)
tmplist = list(self)
newlist = []
for x in range(len(tmplist)):
if (isinstance(tmplist[x], unicode)):
value = tmplist[x].encode('utf-8')
newlist.append(value)
else:
value = tmplist[x]
newlist.append(value)
return str(pureber.BERSequence([
pureber.BEREnumerated(self._LDAP_OP),
pureber.BERSequence([ pureldap.LDAPAttributeDescription(self.key),
pureber.BERSet(map(pureldap.LDAPString, newlist)),
]),
]))
class KnownValues(unittest.TestCase):
knownValues = ( # class, args, kwargs, expected_result
(pureldap.LDAPModifyRequest, [], {
"object":
'cn=foo, dc=example, dc=com',
"modification": [
pureber.BERSequence([
pureber.BEREnumerated(0),
pureber.BERSequence([
pureldap.LDAPAttributeDescription('bar'),
pureber.BERSet([
pureldap.LDAPString('a'),
pureldap.LDAPString('b'),
]),
]),
]),
],
}, None, [0x66, 50] +
([0x04, 0x1a] + l("cn=foo, dc=example, dc=com") + [0x30, 20] +
([0x30, 18] +
([0x0a, 0x01, 0x00] + [0x30, 13] +
([0x04, len("bar")] + l("bar") + [0x31, 0x06] +
([0x04, len("a")] + l("a") + [0x04, len("b")] + l("b"))))))),
(pureldap.LDAPModifyRequest, [], {
"object":
'cn=foo, dc=example, dc=com',
"modification": [
pureber.BERSequence([
pureber.BEREnumerated(1L),
pureber.BERSequence([
pureber.BEROctetString('bar'),
pureber.BERSet([]),
]),
]),
],
}, None, [0x66, 0x2c] +
([0x04, 0x1a] + l("cn=foo, dc=example, dc=com") + [0x30, 0x0e] +
([0x30, 0x0c] + ([0x0a, 0x01, 0x01] + [0x30, 0x07] +
([0x04, 0x03] + l("bar") + [0x31, 0x00]))))),
(pureldap.LDAPFilter_not, [], {
"value": pureldap.LDAPFilter_present("foo"),
},
pureldap.LDAPBERDecoderContext_Filter(
fallback=pureber.BERDecoderContext()),
[0xa2, 0x05] + [0x87] + [len("foo")] + l("foo")),
(
pureldap.LDAPFilter_or,
[],
{
"value": [
pureldap.LDAPFilter_equalityMatch(
attributeDesc=pureldap.LDAPAttributeDescription(
value='cn'),
assertionValue=pureldap.LDAPAssertionValue(
value='foo')),
pureldap.LDAPFilter_equalityMatch(
attributeDesc=pureldap.LDAPAttributeDescription(
value='uid'),
assertionValue=pureldap.LDAPAssertionValue(
value='foo')),
]
},
pureldap.LDAPBERDecoderContext_Filter(
fallback=pureber.BERDecoderContext()),
[0xa1, 23] + [0xa3, 9] + [0x04] + [len("cn")] + l("cn") + [0x04] +
[len("foo")] + l("foo") + [0xa3, 10] + [0x04] + [len("uid")] +
l("uid") + [0x04] + [len("foo")] + l("foo"),
),
(
pureldap.LDAPFilter_and,
[],
{
"value": [
pureldap.LDAPFilter_equalityMatch(
attributeDesc=pureldap.LDAPAttributeDescription(
value='cn'),
assertionValue=pureldap.LDAPAssertionValue(
value='foo')),
pureldap.LDAPFilter_equalityMatch(
attributeDesc=pureldap.LDAPAttributeDescription(
value='uid'),
assertionValue=pureldap.LDAPAssertionValue(
value='foo')),
]
},
pureldap.LDAPBERDecoderContext_Filter(
fallback=pureber.BERDecoderContext()),
[0xa0, 23] + [0xa3, 9] + [0x04] + [len("cn")] + l("cn") + [0x04] +
[len("foo")] + l("foo") + [0xa3, 10] + [0x04] + [len("uid")] +
l("uid") + [0x04] + [len("foo")] + l("foo"),
),
(pureldap.LDAPModifyDNRequest, [], {
'entry': 'cn=foo,dc=example,dc=com',
'newrdn': 'uid=bar',
'deleteoldrdn': 0,
}, None, [0x6c, 0x26] + [0x04] + [len("cn=foo,dc=example,dc=com")] +
l("cn=foo,dc=example,dc=com") + [0x04] + [len("uid=bar")] +
l("uid=bar") + [0x01, 0x01, 0x00]),
(pureldap.LDAPModifyDNRequest, [], {
'entry': 'cn=aoue,dc=example,dc=com',
'newrdn': 'uid=aoue',
'deleteoldrdn': 0,
'newSuperior': 'ou=People,dc=example,dc=com',
}, None, [0x6c, 69] + [0x04] + [len("cn=aoue,dc=example,dc=com")] +
l("cn=aoue,dc=example,dc=com") + [0x04] + [len("uid=aoue")] +
l("uid=aoue") + [0x01, 0x01, 0x00] + [0x80] +
[len("ou=People,dc=example,dc=com")] +
l("ou=People,dc=example,dc=com")),
(
pureldap.LDAPSearchRequest,
[],
{
'baseObject': 'dc=yoja,dc=example,dc=com',
},
None,
[0x63, 57] + [0x04] + [len('dc=yoja,dc=example,dc=com')] +
l('dc=yoja,dc=example,dc=com')
# scope
+ [0x0a, 1, 2]
# derefAliases
+ [0x0a, 1, 0]
# sizeLimit
+ [0x02, 1, 0]
# timeLimit
+ [0x02, 1, 0]
# typesOnly
+ [0x01, 1, 0]
# filter
+ [135, 11] + l('objectClass')
# attributes
+ [48, 0]),
(pureldap.LDAPUnbindRequest, [], {}, None, [0x42, 0x00]),
(
pureldap.LDAPSearchResultDone,
[],
{
'resultCode': 0,
},
None,
[0x65, 0x07]
# resultCode
+ [0x0a, 0x01, 0x00]
# matchedDN
+ [0x04] + [len('')] + l('')
# errorMessage
+ [0x04] + [len('')] + l('')
# referral, TODO
+ []),
(
pureldap.LDAPSearchResultDone,
[],
{
'resultCode': 0,
'matchedDN': 'dc=foo,dc=example,dc=com',
},
None,
[0x65, 31]
# resultCode
+ [0x0a, 0x01, 0x00]
# matchedDN
+ [0x04] + [len('dc=foo,dc=example,dc=com')] +
l('dc=foo,dc=example,dc=com')
# errorMessage
+ [0x04] + [len('')] + l('')
# referral, TODO
+ []),
(
pureldap.LDAPSearchResultDone,
[],
{
'resultCode': 0,
'matchedDN': 'dc=foo,dc=example,dc=com',
'errorMessage': 'the foobar was fubar',
},
None,
[0x65, 51]
# resultCode
+ [0x0a, 0x01, 0x00]
# matchedDN
+ [0x04] + [len('dc=foo,dc=example,dc=com')] +
l('dc=foo,dc=example,dc=com')
# errorMessage
+ [0x04] + [len('the foobar was fubar')] +
l('the foobar was fubar', )
# referral, TODO
+ []),
(
pureldap.LDAPSearchResultDone,
[],
{
'resultCode': 0,
'errorMessage': 'the foobar was fubar',
},
None,
[0x65, 27]
# resultCode
+ [0x0a, 0x01, 0x00]
# matchedDN
+ [0x04] + [len('')] + l('')
# errorMessage
+ [0x04] + [len('the foobar was fubar')] +
l('the foobar was fubar', )
# referral, TODO
+ []),
(
pureldap.LDAPMessage,
[],
{
'id': 42,
'value': pureldap.LDAPBindRequest(),
},
pureldap.LDAPBERDecoderContext_TopLevel(
inherit=pureldap.LDAPBERDecoderContext_LDAPMessage(
fallback=pureldap.LDAPBERDecoderContext(
fallback=pureber.BERDecoderContext()),
inherit=pureldap.LDAPBERDecoderContext(
fallback=pureber.BERDecoderContext()))),
[0x30, 12]
# id
+ [0x02, 0x01, 42]
# value
+ l(str(pureldap.LDAPBindRequest()))),
(
pureldap.LDAPControl,
[],
{
'controlType': '1.2.3.4',
},
None,
[0x30, 9]
# controlType
+ [0x04, 7] + l("1.2.3.4")),
(
pureldap.LDAPControl,
[],
{
'controlType': '1.2.3.4',
'criticality': True,
},
None,
[0x30, 12]
# controlType
+ [0x04, 7] + l("1.2.3.4")
# criticality
+ [0x01, 1, 0xFF]),
(
pureldap.LDAPControl,
[],
{
'controlType': '1.2.3.4',
'criticality': True,
'controlValue': 'silly',
},
None,
[0x30, 19]
# controlType
+ [0x04, 7] + l("1.2.3.4")
# criticality
+ [0x01, 1, 0xFF]
# controlValue
+ [0x04, len("silly")] + l("silly")),
(
pureldap.LDAPMessage,
[],
{
'id':
42,
'value':
pureldap.LDAPBindRequest(),
'controls': [
('1.2.3.4', None, None),
('2.3.4.5', False),
('3.4.5.6', True, '\x00\x01\x02\xFF'),
],
},
pureldap.LDAPBERDecoderContext_TopLevel(
inherit=pureldap.LDAPBERDecoderContext_LDAPMessage(
fallback=pureldap.LDAPBERDecoderContext(
fallback=pureber.BERDecoderContext()),
inherit=pureldap.LDAPBERDecoderContext(
fallback=pureber.BERDecoderContext()))),
[0x30, 59]
# id
+ [0x02, 0x01, 42]
# value
+ l(str(pureldap.LDAPBindRequest()))
# controls
+ l(
str(
pureldap.LDAPControls(value=[
pureldap.LDAPControl(controlType='1.2.3.4'),
pureldap.LDAPControl(controlType='2.3.4.5',
criticality=False),
pureldap.LDAPControl(controlType='3.4.5.6',
criticality=True,
controlValue='\x00\x01\x02\xFF'),
]))),
),
(pureldap.LDAPFilter_equalityMatch, [], {
'attributeDesc': pureldap.LDAPAttributeDescription('cn'),
'assertionValue': pureldap.LDAPAssertionValue('foo'),
},
pureldap.LDAPBERDecoderContext_Filter(
fallback=pureldap.LDAPBERDecoderContext(
fallback=pureber.BERDecoderContext()),
inherit=pureldap.LDAPBERDecoderContext(
fallback=pureber.BERDecoderContext())),
[0xa3, 9] + ([0x04, 2] + l('cn') + [0x04, 3] + l('foo'))),
(pureldap.LDAPFilter_or, [[
pureldap.LDAPFilter_equalityMatch(
attributeDesc=pureldap.LDAPAttributeDescription('cn'),
assertionValue=pureldap.LDAPAssertionValue('foo')),
pureldap.LDAPFilter_equalityMatch(
attributeDesc=pureldap.LDAPAttributeDescription('uid'),
assertionValue=pureldap.LDAPAssertionValue('foo')),
pureldap.LDAPFilter_equalityMatch(
attributeDesc=pureldap.LDAPAttributeDescription('mail'),
assertionValue=pureldap.LDAPAssertionValue('foo')),
pureldap.LDAPFilter_substrings(
type='mail',
substrings=[pureldap.LDAPFilter_substrings_initial('foo@')]),
]], {},
pureldap.LDAPBERDecoderContext_Filter(
fallback=pureldap.LDAPBERDecoderContext(
fallback=pureber.BERDecoderContext()),
inherit=pureldap.LDAPBERDecoderContext(
fallback=pureber.BERDecoderContext())), [0xA1, 52] +
([0xa3, 9] +
([0x04, 2] + l('cn') + [0x04, 3] + l('foo')) + [0xa3, 10] +
([0x04, 3] + l('uid') + [0x04, 3] + l('foo')) + [0xa3, 11] +
([0x04, 4] + l('mail') + [0x04, 3] + l('foo')) + [0xa4, 14] +
([0x04, 4] + l('mail') + [0x30, 6] + ([0x80, 4] + l('foo@'))))),
(pureldap.LDAPSearchRequest, [], {
'baseObject':
'dc=example,dc=com',
'scope':
pureldap.LDAP_SCOPE_wholeSubtree,
'derefAliases':
pureldap.LDAP_DEREF_neverDerefAliases,
'sizeLimit':
1,
'timeLimit':
0,
'typesOnly':
False,
'filter':
pureldap.LDAPFilter_or([
pureldap.LDAPFilter_equalityMatch(
attributeDesc=pureldap.LDAPAttributeDescription('cn'),
assertionValue=pureldap.LDAPAssertionValue('foo')),
pureldap.LDAPFilter_equalityMatch(
attributeDesc=pureldap.LDAPAttributeDescription('uid'),
assertionValue=pureldap.LDAPAssertionValue('foo')),
pureldap.LDAPFilter_equalityMatch(
attributeDesc=pureldap.LDAPAttributeDescription('mail'),
assertionValue=pureldap.LDAPAssertionValue('foo')),
pureldap.LDAPFilter_substrings(
type='mail',
substrings=[
pureldap.LDAPFilter_substrings_initial('foo@')
]),
]),
'attributes': [''],
},
pureldap.LDAPBERDecoderContext_LDAPMessage(
fallback=pureldap.LDAPBERDecoderContext(
fallback=pureber.BERDecoderContext()),
inherit=pureldap.LDAPBERDecoderContext(
fallback=pureber.BERDecoderContext())), [0x63, 92] +
([0x04, 17] + l('dc=example,dc=com') + [0x0a, 1, 0x02] +
[0x0a, 1, 0x00] + [0x02, 1, 0x01] + [0x02, 1, 0x00] +
[0x01, 1, 0x00] + [0xA1, 52] +
([0xa3, 9] +
([0x04, 2] + l('cn') + [0x04, 3] + l('foo')) + [0xa3, 10] +
([0x04, 3] + l('uid') + [0x04, 3] + l('foo')) + [0xa3, 11] +
([0x04, 4] + l('mail') + [0x04, 3] + l('foo')) + [0xa4, 14] +
([0x04, 4] + l('mail') + [0x30, 6] +
([0x80, 4] + l('foo@')))) + [0x30, 2] + ([0x04, 0]))),
(
pureldap.LDAPMessage,
[],
{
'id':
1L,
'value':
pureldap.LDAPSearchRequest(
baseObject='dc=example,dc=com',
scope=pureldap.LDAP_SCOPE_wholeSubtree,
derefAliases=pureldap.LDAP_DEREF_neverDerefAliases,
sizeLimit=1,
timeLimit=0,
typesOnly=False,
filter=pureldap.LDAPFilter_or([
pureldap.LDAPFilter_equalityMatch(
attributeDesc=pureldap.LDAPAttributeDescription(
'cn'),
assertionValue=pureldap.LDAPAssertionValue('foo')),
pureldap.LDAPFilter_equalityMatch(
attributeDesc=pureldap.LDAPAttributeDescription(
'uid'),
assertionValue=pureldap.LDAPAssertionValue('foo')),
pureldap.LDAPFilter_equalityMatch(
attributeDesc=pureldap.LDAPAttributeDescription(
'mail'),
assertionValue=pureldap.LDAPAssertionValue('foo')),
pureldap.LDAPFilter_substrings(
type='mail',
substrings=[
pureldap.LDAPFilter_substrings_initial('foo@')
]),
]),
attributes=[''],
),
},
pureldap.LDAPBERDecoderContext_TopLevel(
inherit=pureldap.LDAPBERDecoderContext_LDAPMessage(
fallback=pureldap.LDAPBERDecoderContext(
fallback=pureber.BERDecoderContext()),
inherit=pureldap.LDAPBERDecoderContext(
fallback=pureber.BERDecoderContext()))),
[0x30, 97]
# id
+ [0x02, 1, 1]
# value
+ [0x63, 92] +
([0x04, 17] + l('dc=example,dc=com') + [0x0a, 1, 0x02] +
[0x0a, 1, 0x00] + [0x02, 1, 0x01] + [0x02, 1, 0x00] +
[0x01, 1, 0x00] + [0xA1, 52] +
([0xa3, 9] +
([0x04, 2] + l('cn') + [0x04, 3] + l('foo')) + [0xa3, 10] +
([0x04, 3] + l('uid') + [0x04, 3] + l('foo')) + [0xa3, 11] +
([0x04, 4] + l('mail') + [0x04, 3] + l('foo')) + [0xa4, 14] +
([0x04, 4] + l('mail') + [0x30, 6] +
([0x80, 4] + l('foo@')))) + [0x30, 2] + ([0x04, 0]))),
(pureldap.LDAPExtendedRequest, [], {
'requestName': '42.42.42',
'requestValue': 'foo',
}, None, [0x40 | 0x20 | 23, 1 + 1 + 8 + 1 + 1 + 3] +
([0x80 | 0] + [len('42.42.42')] + l('42.42.42')) +
([0x80 | 1] + [len('foo')] + l('foo'))),
)
def testToLDAP(self):
"""str(LDAPClass(...)) should give known result with known input"""
for klass, args, kwargs, decoder, encoded in self.knownValues:
result = klass(*args, **kwargs)
result = str(result)
result = map(ord, result)
if result != encoded:
raise AssertionError, \
"Class %s(*%s, **%s) doesn't encode properly: " \
"%s != %s" % (klass.__name__,
repr(args), repr(kwargs),
repr(result), repr(encoded))
def testFromLDAP(self):
"""LDAPClass(encoded="...") should give known result with known input"""
for klass, args, kwargs, decoder, encoded in self.knownValues:
if decoder is None:
decoder = pureldap.LDAPBERDecoderContext(
fallback=pureber.BERDecoderContext())
m = s(*encoded)
result, bytes = pureber.berDecodeObject(decoder, m)
self.assertEquals(bytes, len(m))
shouldBe = klass(*args, **kwargs)
#TODO shouldn't use str below
assert str(result)==str(shouldBe), \
"Class %s(*%s, **%s) doesn't decode properly: " \
"%s != %s" % (klass.__name__,
repr(args), repr(kwargs),
repr(result), repr(shouldBe))
def testPartial(self):
"""LDAPClass(encoded="...") with too short input should throw BERExceptionInsufficientData"""
for klass, args, kwargs, decoder, encoded in self.knownValues:
if decoder is None:
decoder = pureldap.LDAPBERDecoderContext(
fallback=pureber.BERDecoderContext())
for i in xrange(1, len(encoded)):
m = s(*encoded)[:i]
self.assertRaises(pureber.BERExceptionInsufficientData,
pureber.berDecodeObject, decoder, m)
self.assertEquals((None, 0), pureber.berDecodeObject(decoder, ''))
