From de4d68eac3afc76d4169eb527fef0df6787e1298 Mon Sep 17 00:00:00 2001
From: Julian Rother <julian@jrother.eu>
Date: Sat, 11 Dec 2021 16:30:23 +0100
Subject: [PATCH] Caching for DN parsing and stringprep
---
ldapserver/dn.py | 2 ++
ldapserver/rfc4518_stringprep.py | 2 ++
ldapserver/schema/types.py | 3 +++
3 files changed, 7 insertions(+)
diff --git a/ldapserver/dn.py b/ldapserver/dn.py
index f291fac..76a371f 100644
--- a/ldapserver/dn.py
+++ b/ldapserver/dn.py
@@ -16,6 +16,7 @@ Limitations:
import typing
import re
+import functools
from . import exceptions
@@ -45,6 +46,7 @@ class DN(tuple):
# distinguishedName = [ relativeDistinguishedName *( COMMA relativeDistinguishedName ) ]
@classmethod
+ @functools.lru_cache(maxsize=128, typed=False)
def from_str(cls, schema, expr):
'''Parse string representation of a DN according to RFC 4514
diff --git a/ldapserver/rfc4518_stringprep.py b/ldapserver/rfc4518_stringprep.py
index 6e4c93c..889b94b 100644
--- a/ldapserver/rfc4518_stringprep.py
+++ b/ldapserver/rfc4518_stringprep.py
@@ -1,6 +1,7 @@
import unicodedata
import stringprep
import enum
+import functools
SPACE = 0x0020
@@ -159,6 +160,7 @@ class SubstringType(enum.Enum):
ANY = enum.auto()
FINAL = enum.auto()
+@functools.lru_cache(maxsize=128, typed=False)
def prepare(value, matching_type=MatchingType.EXACT_STRING,
substring_type=SubstringType.NONE):
# Algortihm according to RFC 4518
diff --git a/ldapserver/schema/types.py b/ldapserver/schema/types.py
index 4f3dcee..aba3bed 100644
--- a/ldapserver/schema/types.py
+++ b/ldapserver/schema/types.py
@@ -543,3 +543,6 @@ class Schema(OIDDict):
matching_rule_definitions=value.matching_rule_definitions,
attribute_type_definitions=value.attribute_type_definitions,
object_class_definitions=value.object_class_definitions)
+
+ def __hash__(self):
+ return id(self)
--
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