ipa/SOURCES/0005-Use-the-python-cryptog...

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From d9aa75459d650e5282a160a3eef09ed175dc5b51 Mon Sep 17 00:00:00 2001
From: Rob Crittenden <rcritten@redhat.com>
Date: Wed, 7 Jun 2023 11:44:05 -0400
Subject: [PATCH] Use the python-cryptography parser directly in cert-find
cert-find is a rather complex beast because it not only
looks for certificates in the optional CA but within the
IPA LDAP database as well. It has a process to deduplicate
the certificates since any PKI issued certificates will
also be associated with an IPA record.
In order to obtain the data to deduplicate the certificates
the cert from LDAP must be parser for issuer and serial number.
ipaldap has automation to determine the datatype of an
attribute and will use the ipalib.x509 IPACertificate class to
decode a certificate automatically if you access
entry['usercertificate'].
The downside is that this is comparatively slow. Here is the
parse time in microseconds:
cryptography 0.0081
OpenSSL.crypto 0.2271
ipalib.x509 2.6814
Since only issuer and subject are required there is no need to
make the expensive IPACertificate call.
The IPACertificate parsing time is fine if you're parsing one
certificate but if the LDAP search returns a lot of certificates,
say in the thousands, then those microseconds add up quickly.
In testing it took ~17 seconds to parse 5k certificates (excluding
transmission overhead, etc).
cert-find when there are a lot of certificates has been
historically slow. It isn't related to the CA which returns
large sets (well, 5k anyway) in a second or two. It was the
LDAP comparision adding tens of seconds to the runtime.
When searching with the default sizelimit of 100 the time is
~10s without this patch. With it the time is 1.5s.
CLI times from before and after searching for all certs:
original:
-------------------------------
Number of entries returned 5038
-------------------------------
real 0m15.507s
user 0m0.828s
sys 0m0.241s
using cryptography:
real 0m4.037s
user 0m0.816s
sys 0m0.193s
Fixes: https://pagure.io/freeipa/issue/9331
Signed-off-by: Rob Crittenden <rcritten@redhat.com>
Reviewed-By: Florence Blanc-Renaud <frenaud@redhat.com>
---
ipaserver/plugins/cert.py | 3 ++-
ipatests/test_xmlrpc/test_cert_plugin.py | 12 +++++++++++-
2 files changed, 13 insertions(+), 2 deletions(-)
diff --git a/ipaserver/plugins/cert.py b/ipaserver/plugins/cert.py
index 36a0e8cb31b4dbdd9bff09165d1d8aa203936d37..4fb85069a835d94969c9d05789714345ecc60e2e 100644
--- a/ipaserver/plugins/cert.py
+++ b/ipaserver/plugins/cert.py
@@ -1795,7 +1795,8 @@ class cert_find(Search, CertMethod):
ca_enabled = getattr(context, 'ca_enabled')
for entry in entries:
for attr in ('usercertificate', 'usercertificate;binary'):
- for cert in entry.get(attr, []):
+ for der in entry.raw.get(attr, []):
+ cert = cryptography.x509.load_der_x509_certificate(der)
cert_key = self._get_cert_key(cert)
try:
obj = result[cert_key]
diff --git a/ipatests/test_xmlrpc/test_cert_plugin.py b/ipatests/test_xmlrpc/test_cert_plugin.py
index 433cebcd79f792e5c97307c6d599e50855ff4151..583c67fd942a61f42e578cc51a0e456cacf9a5e5 100644
--- a/ipatests/test_xmlrpc/test_cert_plugin.py
+++ b/ipatests/test_xmlrpc/test_cert_plugin.py
@@ -254,6 +254,16 @@ class test_cert(BaseCert):
result = _emails_are_valid(email_addrs, [])
assert not result
+ def test_00012_cert_find_all(self):
+ """
+ Test that cert-find --all returns successfully.
+
+ We don't know how many we'll get but there should be at least 10
+ by default.
+ """
+ res = api.Command['cert_find'](all=True)
+ assert 'count' in res and res['count'] >= 10
+
def test_99999_cleanup(self):
"""
Clean up cert test data
@@ -283,7 +293,7 @@ class test_cert_find(XMLRPC_test):
short = api.env.host.split('.', maxsplit=1)[0]
- def test_0001_find_all(self):
+ def test_0001_find_all_certs(self):
"""
Search for all certificates.
--
2.41.0