"""
Support for writing a set of directory entries as LDIF.
You probably want to use this only indirectly, as in
str(LDAPEntry(...)).
TODO support writing modify operations
TODO support reading modify operations
TODO implement rest of syntax from RFC2849
"""
# RFC2849: The LDAP Data Interchange Format (LDIF) - Technical Specification
import base64
[docs]def base64_encode(s):
return ''.join(base64.encodestring(s).split('\n'))+'\n'
[docs]def attributeAsLDIF_base64(attribute, value):
return "%s:: %s" % (attribute, base64_encode(value))
[docs]def containsNonprintable(s):
for c in s:
if ord(c) > 127 or c in ('\0', '\n', '\r'):
return 1
return 0
[docs]def attributeAsLDIF(attribute, value):
if value.startswith('\0') \
or value.startswith('\n') \
or value.startswith('\r') \
or value.startswith(' ') \
or value.startswith(':') \
or value.startswith('<') \
or value.endswith(' ') \
or containsNonprintable(value):
return attributeAsLDIF_base64(attribute, value)
else:
return "%s: %s\n" % (attribute, value)
[docs]def asLDIF(dn, attributes):
s="dn: %s\n"%dn
for k,vs in attributes:
for v in vs:
s=s+attributeAsLDIF(k, v)
s=s+"\n"
return s
[docs]def manyAsLDIF(objects):
s=[header()]
for dn, attributes in objects:
s.append(asLDIF(dn, attributes))
return ''.join(s)