112 lines
2.8 KiB
Python
112 lines
2.8 KiB
Python
import subprocess
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from datetime import datetime
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from pathlib import Path
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from OpenSSL import crypto
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from passlib import pwd
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class EasyRSA:
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__directory: Path | None
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__ca_password: str | None
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def __init__(self, directory: Path) -> None:
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self.__directory = directory
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def set_ca_password(self, password: str | None = None) -> None:
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if password is None:
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password = pwd.genword(length=32, charset="ascii_62")
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self.__ca_password = password
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print(self.__ca_password)
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def __easyrsa(
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self,
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*easyrsa_args: str,
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) -> subprocess.CompletedProcess:
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return subprocess.run(
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[
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"easyrsa", "--batch",
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f"--pki-dir={self.__directory}",
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*easyrsa_args,
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],
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stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL,
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check=True,
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)
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def __build_cert(
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self,
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cert_filename: Path,
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*easyrsa_args: str,
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) -> crypto.X509:
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self.__easyrsa(*easyrsa_args)
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with open(
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self.__directory.joinpath(cert_filename), "r"
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) as cert_file:
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return crypto.load_certificate(
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crypto.FILETYPE_PEM, cert_file.read()
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)
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def init_pki(self) -> bool:
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self.__easyrsa("init-pki")
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def build_ca(
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self,
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days: int = 365 * 50,
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cn: str = "kiwi-ca"
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) -> crypto.X509:
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return self.__build_cert(
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Path("ca.crt"),
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f"--passout=pass:{self.__ca_password}",
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f"--passin=pass:{self.__ca_password}",
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# "--dn-mode=org",
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# "--req-c=EX",
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# "--req-st=EXAMPLE",
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# "--req-city=EXAMPLE",
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# "--req-org=EXAMPLE",
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# "--req-ou=EXAMPLE",
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# "--req-email=EXAMPLE",
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f"--req-cn={cn}",
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f"--days={days}",
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"build-ca",
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)
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def issue(
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self,
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days: int = 365 * 50,
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cn: str = "kiwi-vpn",
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cert_type: str = "client"
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) -> crypto.X509:
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return self.__build_cert(
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Path(f"issued/{cn}.crt"),
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f"--passin=pass:{self.__ca_password}",
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f"--days={days}",
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f"build-{cert_type}-full",
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cn,
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"nopass",
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)
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if __name__ == "__main__":
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rsa = EasyRSA(Path("tmp/pki"))
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rsa.init_pki()
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rsa.set_ca_password()
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ca = rsa.build_ca()
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server = rsa.issue(cert_type="server", cn="kiwi-server")
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client = rsa.issue(cert_type="client", cn="kiwi-client")
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print(ca.get_subject())
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print(server.get_subject())
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print(client.get_subject())
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date_format, encoding = "%Y%m%d%H%M%SZ", "ascii"
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print(datetime.strptime(
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client.get_notAfter().decode(encoding), date_format))
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