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修复了证书在 python 3.13 下无法通过验证的情况 #241

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Merged
URenko merged 2 commits into from
Jun 25, 2025
Merged

修复了证书在 python 3.13 下无法通过验证的情况 #241

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87513f5
fix certpath && fix the verification problem on python 3.13
Sving1024 Jun 25, 2025
a522560
replace split with rsplit
Sving1024 Jun 25, 2025
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2 changes: 1 addition & 1 deletion accesser/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -64,7 +64,7 @@ async def send_pac(writer: asyncio.StreamWriter):
await writer.wait_closed()

async def send_crt(writer: asyncio.StreamWriter, path: str):
with open(os.path.join(basepath, path.lstrip('/')), 'rb') as f:
with open(os.path.join(cm.certpath, path.rsplit(sep = '/',maxsplit = 1)[-1]), 'rb') as f:
crt = f.read()
writer.write(f'HTTP/1.1 200 OK\r\nContent-Type: application/x-x509-ca-cert\r\nContent-Length: {len(crt)}\r\n\r\n'.encode('iso-8859-1'))
writer.write(crt)
Expand Down
194 changes: 134 additions & 60 deletions accesser/utils/certmanager.py
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Original file line number Diff line number Diff line change
Expand Up @@ -17,8 +17,6 @@
# along with this program. If not, see <http://www.gnu.org/licenses/>.

import os
import random
import sys
import datetime
from pathlib import Path

Expand All @@ -27,54 +25,90 @@
from cryptography.hazmat.primitives import hashes
from cryptography.hazmat.primitives import serialization
from cryptography.hazmat.primitives.asymmetric import rsa
from cryptography.x509.extensions import (
AuthorityKeyIdentifier,
KeyUsage,
ExtendedKeyUsage,
SubjectKeyIdentifier,
)
from cryptography.x509.oid import ExtendedKeyUsageOID

from . import setting
from .setting import basepath

if setting.config['importca']:
certpath = os.path.join(basepath, 'CERT')
if setting.config["importca"]:
certpath = os.path.join(basepath, "CERT")
else:
certpath ='CERT'
certpath = "CERT"
if not os.path.exists(certpath):
os.makedirs(certpath, exist_ok=True)


def create_root_ca():
key = rsa.generate_private_key(
public_exponent=65537,
key_size=4096,
)

subject = issuer = x509.Name([
x509.NameAttribute(NameOID.ORGANIZATION_NAME, "Accesser"),
x509.NameAttribute(NameOID.COMMON_NAME, "Accesser"),
])
cert = x509.CertificateBuilder().subject_name(
subject
).issuer_name(
issuer
).public_key(
key.public_key()
).serial_number(
x509.random_serial_number()
).not_valid_before(
datetime.datetime.now(datetime.timezone.utc)
).not_valid_after(
datetime.datetime.now(datetime.timezone.utc) + datetime.timedelta(days=10*365)
).add_extension(
x509.BasicConstraints(ca=True, path_length=None), critical=True,
).sign(key, hashes.SHA256())

(Path(certpath) / "root.crt").write_bytes(cert.public_bytes(serialization.Encoding.PEM))

(Path(certpath) / "root.key").write_bytes(key.private_bytes(
encoding=serialization.Encoding.PEM,
format=serialization.PrivateFormat.PKCS8,
encryption_algorithm=serialization.NoEncryption(),
))

(Path(certpath) / "root.pfx").write_bytes(serialization.pkcs12.serialize_key_and_certificates(
b"Accesser", key, cert, None, serialization.NoEncryption()
))
subject = issuer = x509.Name(
[
x509.NameAttribute(NameOID.ORGANIZATION_NAME, "Accesser"),
x509.NameAttribute(NameOID.COMMON_NAME, "Accesser"),
]
)
cert = (
x509.CertificateBuilder()
.subject_name(subject)
.issuer_name(issuer)
.public_key(key.public_key())
.serial_number(x509.random_serial_number())
.not_valid_before(datetime.datetime.now(datetime.timezone.utc))
.not_valid_after(
datetime.datetime.now(datetime.timezone.utc)
+ datetime.timedelta(days=10 * 365)
)
.add_extension(
x509.BasicConstraints(ca=True, path_length=None),
critical=True,
)
.add_extension(
KeyUsage(
digital_signature=False,
content_commitment=False,
key_encipherment=False,
data_encipherment=False,
key_agreement=False,
key_cert_sign=True,
crl_sign=True,
encipher_only=False,
decipher_only=False,
),
critical=True,
)
.add_extension(
SubjectKeyIdentifier.from_public_key(key.public_key()),
critical=False,
)
.sign(key, hashes.SHA256())
)

(Path(certpath) / "root.crt").write_bytes(
cert.public_bytes(serialization.Encoding.PEM)
)

(Path(certpath) / "root.key").write_bytes(
key.private_bytes(
encoding=serialization.Encoding.PEM,
format=serialization.PrivateFormat.PKCS8,
encryption_algorithm=serialization.NoEncryption(),
)
)

(Path(certpath) / "root.pfx").write_bytes(
serialization.pkcs12.serialize_key_and_certificates(
b"Accesser", key, cert, None, serialization.NoEncryption()
)
)


def create_certificate(server_name):
Expand All @@ -83,32 +117,72 @@ def create_certificate(server_name):
ca_cert = x509.load_pem_x509_certificate(rootpem)
pkey = serialization.load_pem_private_key(rootkey, password=None)

cert = x509.CertificateBuilder().subject_name(x509.Name([
x509.NameAttribute(NameOID.ORGANIZATION_NAME, "Accesser"),
x509.NameAttribute(NameOID.COMMON_NAME, "Accesser_Proxy"),
])
).issuer_name(
ca_cert.subject
).public_key(
pkey.public_key()
).serial_number(
x509.random_serial_number()
).not_valid_before(
datetime.datetime.now(datetime.timezone.utc) - datetime.timedelta(seconds=600)
).not_valid_after(
datetime.datetime.now(datetime.timezone.utc) + datetime.timedelta(days=365)
).add_extension(
x509.SubjectAlternativeName([
x509.DNSName(server_name),
x509.DNSName('*.'+server_name),
]),
critical=False,
).sign(pkey, hashes.SHA256())

cert = (
x509.CertificateBuilder()
.subject_name(
x509.Name(
[
x509.NameAttribute(NameOID.ORGANIZATION_NAME, "Accesser"),
x509.NameAttribute(NameOID.COMMON_NAME, "Accesser_Proxy"),
]
)
)
.issuer_name(ca_cert.subject)
.public_key(pkey.public_key())
.serial_number(x509.random_serial_number())
.not_valid_before(
datetime.datetime.now(datetime.timezone.utc)
- datetime.timedelta(seconds=600)
)
.not_valid_after(
datetime.datetime.now(datetime.timezone.utc) + datetime.timedelta(days=365)
)
.add_extension(
x509.SubjectAlternativeName(
[
x509.DNSName(server_name),
x509.DNSName("*." + server_name),
]
),
critical=False,
)
.add_extension(
KeyUsage(
digital_signature=True,
content_commitment=False,
key_encipherment=False,
data_encipherment=False,
key_agreement=False,
key_cert_sign=False,
crl_sign=False,
encipher_only=False,
decipher_only=False,
),
critical=True,
)
.add_extension(
AuthorityKeyIdentifier.from_issuer_public_key(pkey.public_key()),
critical=False,
)
.add_extension(
SubjectKeyIdentifier.from_public_key(pkey.public_key()),
critical=False,
)
.add_extension(
ExtendedKeyUsage(
usages=[
ExtendedKeyUsageOID.SERVER_AUTH,
ExtendedKeyUsageOID.CLIENT_AUTH,
]
),
critical=True,
)
.sign(pkey, hashes.SHA256())
)

(Path(certpath) / f"{server_name}.crt").write_bytes(
cert.public_bytes(serialization.Encoding.PEM) +
pkey.private_bytes(
cert.public_bytes(serialization.Encoding.PEM)
+ pkey.private_bytes(
encoding=serialization.Encoding.PEM,
format=serialization.PrivateFormat.PKCS8,
encryption_algorithm=serialization.NoEncryption(),
Expand Down