89 lines
2.4 KiB
Python
89 lines
2.4 KiB
Python
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# -*- coding: utf-8 -*-
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"""
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ldap.controls.readentry - classes for the Read Entry controls
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(see RFC 4527)
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See https://www.python-ldap.org/ for project details.
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"""
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import ldap
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from pyasn1.codec.ber import encoder,decoder
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from ldap.controls import LDAPControl,KNOWN_RESPONSE_CONTROLS
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from pyasn1_modules.rfc2251 import AttributeDescriptionList,SearchResultEntry
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class ReadEntryControl(LDAPControl):
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"""
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Base class for read entry control described in RFC 4527
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attrList
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list of attribute type names requested
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Class attributes with values extracted from the response control:
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dn
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string holding the distinguished name of the LDAP entry
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entry
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dictionary holding the LDAP entry
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"""
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def __init__(self,criticality=False,attrList=None):
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self.criticality,self.attrList,self.entry = criticality,attrList or [],None
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def encodeControlValue(self):
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attributeSelection = AttributeDescriptionList()
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for i in range(len(self.attrList)):
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attributeSelection.setComponentByPosition(i,self.attrList[i])
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return encoder.encode(attributeSelection)
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def decodeControlValue(self,encodedControlValue):
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decodedEntry,_ = decoder.decode(encodedControlValue,asn1Spec=SearchResultEntry())
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self.dn = str(decodedEntry[0])
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self.entry = {}
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for attr in decodedEntry[1]:
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self.entry[str(attr[0])] = [ str(attr_value) for attr_value in attr[1] ]
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class PreReadControl(ReadEntryControl):
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"""
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Class for pre-read control described in RFC 4527
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attrList
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list of attribute type names requested
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Class attributes with values extracted from the response control:
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dn
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string holding the distinguished name of the LDAP entry
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before the operation was done by the server
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entry
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dictionary holding the LDAP entry
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before the operation was done by the server
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"""
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controlType = ldap.CONTROL_PRE_READ
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KNOWN_RESPONSE_CONTROLS[PreReadControl.controlType] = PreReadControl
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class PostReadControl(ReadEntryControl):
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"""
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Class for post-read control described in RFC 4527
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attrList
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list of attribute type names requested
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Class attributes with values extracted from the response control:
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dn
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string holding the distinguished name of the LDAP entry
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after the operation was done by the server
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entry
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dictionary holding the LDAP entry
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after the operation was done by the server
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"""
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controlType = ldap.CONTROL_POST_READ
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KNOWN_RESPONSE_CONTROLS[PostReadControl.controlType] = PostReadControl
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