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"""
ldap.modlist - create add/modify modlist's
(c) by Michael Stroeder <michael@stroeder.com>
See http://python-ldap.sourceforge.net for details.
$Id: modlist.py,v 1.14 2004/01/22 22:30:59 stroeder Exp $
Python compability note:
This module is known to work with Python 2.0+ but should work
with Python 1.5.2 as well.
"""
__version__ = '0.1.1'
import string,ldap
def list_dict(l):
"""
return a dictionary with all items of l being the keys of the dictionary
"""
d = {}
for i in l:
d[i]=None
return d
def addModlist(entry,ignore_attr_types=None):
"""Build modify list for call of method LDAPObject.add()"""
ignore_attr_types = list_dict(map(string.lower,(ignore_attr_types or [])))
modlist = []
for attrtype in entry.keys():
if ignore_attr_types.has_key(string.lower(attrtype)):
# This attribute type is ignored
continue
# Eliminate empty attr value strings in list
attrvaluelist = filter(lambda x:x!=None,entry[attrtype])
if attrvaluelist:
modlist.append((attrtype,entry[attrtype]))
return modlist # addModlist()
def modifyModlist(
old_entry,new_entry,ignore_attr_types=None,ignore_oldexistent=0
):
"""
Build differential modify list for calling LDAPObject.modify()/modify_s()
old_entry
Dictionary holding the old entry
new_entry
Dictionary holding what the new entry should be
ignore_attr_types
List of attribute type names to be ignored completely
ignore_oldexistent
If non-zero attribute type names which are in old_entry
but are not found in new_entry at all are not deleted.
This is handy for situations where your application
sets attribute value to '' for deleting an attribute.
In most cases leave zero.
"""
ignore_attr_types = list_dict(map(string.lower,(ignore_attr_types or [])))
modlist = []
attrtype_lower_map = {}
for a in old_entry.keys():
attrtype_lower_map[string.lower(a)]=a
for attrtype in new_entry.keys():
attrtype_lower = string.lower(attrtype)
if ignore_attr_types.has_key(attrtype_lower):
# This attribute type is ignored
continue
# Filter away null-strings
new_value = filter(lambda x:x!=None,new_entry[attrtype])
if attrtype_lower_map.has_key(attrtype_lower):
old_value = old_entry.get(attrtype_lower_map[attrtype_lower],[])
old_value = filter(lambda x:x!=None,old_value)
del attrtype_lower_map[attrtype_lower]
else:
old_value = []
if not old_value and new_value:
# Add a new attribute to entry
modlist.append((ldap.MOD_ADD,attrtype,new_value))
elif old_value and new_value:
# Replace existing attribute
replace_attr_value = len(old_value)!=len(new_value)
if not replace_attr_value:
old_value_dict=list_dict(old_value)
new_value_dict=list_dict(new_value)
delete_values = []
for v in old_value:
if not new_value_dict.has_key(v):
replace_attr_value = 1
break
add_values = []
if not replace_attr_value:
for v in new_value:
if not old_value_dict.has_key(v):
replace_attr_value = 1
break
if replace_attr_value:
modlist.append((ldap.MOD_DELETE,attrtype,None))
modlist.append((ldap.MOD_ADD,attrtype,new_value))
elif old_value and not new_value:
# Completely delete an existing attribute
modlist.append((ldap.MOD_DELETE,attrtype,None))
if not ignore_oldexistent:
# Remove all attributes of old_entry which are not present
# in new_entry at all
for a in attrtype_lower_map.keys():
if ignore_attr_types.has_key(a):
# This attribute type is ignored
continue
attrtype = attrtype_lower_map[a]
modlist.append((ldap.MOD_DELETE,attrtype,None))
return modlist # modifyModlist()
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