step-ca-inspector/models/x509_cert.py
2025-01-07 09:50:19 +01:00

137 lines
4.1 KiB
Python

import binascii
import dateutil
import json
import mariadb
from cryptography import x509
from cryptography.hazmat.primitives import hashes, serialization
from datetime import datetime, timedelta, timezone
from models.config import config
config()
conn = mariadb.connect(
host = config.database_host,
user = config.database_user,
password = config.database_password,
database = config.database_name
)
class list:
certs = []
def __new__(cls, sort_key=None):
cur = conn.cursor()
cur.execute("SELECT nkey FROM x509_certs")
for (cert_serial,) in cur:
cert_object = cert(cert_serial)
cls.certs.append(cert_object)
cur.close()
if sort_key is not None:
cls.certs.sort(key=lambda item: getattr(item, sort_key))
return cls.certs
class cert:
def __init__(self, serial):
cert_der = self.get_cert(serial)
cert_data = self.get_cert_data(serial)
cert_revoked = self.get_cert_revoked(serial)
self.load(cert_der, cert_data, cert_revoked)
def load(self, cert_der, cert_data, cert_revoked):
cert = x509.load_der_x509_certificate(cert_der)
self.pem = cert.public_bytes(serialization.Encoding.PEM)
self.serial = str(cert.serial_number)
self.sha256 = binascii.b2a_hex(cert.fingerprint(hashes.SHA256()))
self.sha1 = binascii.b2a_hex(cert.fingerprint(hashes.SHA1()))
self.md5 = binascii.b2a_hex(cert.fingerprint(hashes.MD5()))
self.pub_alg = cert.public_key_algorithm_oid._name
self.sig_alg = cert.signature_algorithm_oid._name
self.issuer = cert.issuer.rfc4514_string()
self.subject = cert.subject.rfc4514_string({x509.NameOID.EMAIL_ADDRESS: "E"})
self.not_before = cert.not_valid_before_utc.replace(microsecond=0)
self.not_after = cert.not_valid_after_utc.replace(microsecond=0)
san_data = cert.extensions.get_extension_for_class(x509.SubjectAlternativeName)
self.san_names = san_data.value.get_values_for_type(x509.GeneralName)
self.provisioner = cert_data.get("provisioner", None)
if cert_revoked is not None:
self.revoked_at = dateutil.parser.isoparse(
cert_revoked.get("RevokedAt")
).replace(microsecond=0)
else:
self.revoked_at = None
now_with_tz = datetime.utcnow().replace(
tzinfo=timezone(offset=timedelta()), microsecond=0
)
if self.revoked_at is not None and self.revoked_at < now_with_tz:
self.status = status(status.REVOKED)
elif self.not_after < now_with_tz:
self.status = status(status.EXPIRED)
else:
self.status = status(status.VALID)
def get_cert(self, cert_serial):
cur = conn.cursor()
cur.execute("SELECT nvalue FROM x509_certs WHERE nkey=?", (cert_serial,))
if cur.rowcount > 0:
(cert,) = cur.fetchone()
else:
cert = None
cur.close()
return cert
def get_cert_data(self, cert_serial):
cur = conn.cursor()
cur.execute("SELECT nvalue FROM x509_certs_data WHERE nkey=?", (cert_serial,))
(cert_data_raw,) = cur.fetchone()
cur.close()
cert_data = json.loads(cert_data_raw)
return cert_data
def get_cert_revoked(self, cert_serial):
cur = conn.cursor()
cur.execute(
"SELECT nvalue FROM revoked_x509_certs WHERE nkey=?", (cert_serial,)
)
if cur.rowcount > 0:
(cert_revoked_raw,) = cur.fetchone()
cert_revoked = json.loads(cert_revoked_raw)
else:
cert_revoked = None
cur.close()
return cert_revoked
class status:
REVOKED = 1
EXPIRED = 2
VALID = 3
def __init__(self, status):
self.value = status
def __str__(self):
if self.value == self.EXPIRED:
return "Expired"
elif self.value == self.REVOKED:
return "Revoked"
elif self.value == self.VALID:
return "Valid"
else:
return "Undefined"