160 lines
6.0 KiB
Python
160 lines
6.0 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2014 matrix.org
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import ConfigParser as configparser
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import argparse
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import socket
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import sys
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import os
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from OpenSSL import crypto
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import nacl.signing
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from syutil.base64util import encode_base64
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import subprocess
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def load_config(description, argv):
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config_parser = argparse.ArgumentParser(add_help=False)
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config_parser.add_argument("-c", "--config-path", metavar="CONFIG_FILE",
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help="Specify config file")
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config_args, remaining_args = config_parser.parse_known_args(argv)
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if config_args.config_path:
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config = configparser.SafeConfigParser()
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config.read([config_args.config_path])
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defaults = dict(config.items("KeyServer"))
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else:
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defaults = {}
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parser = argparse.ArgumentParser(
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parents=[config_parser],
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description=description,
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formatter_class=argparse.RawDescriptionHelpFormatter,
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)
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parser.set_defaults(**defaults)
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parser.add_argument("--server-name", default=socket.getfqdn(),
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help="The name of the server")
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parser.add_argument("--signing-key-path",
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help="The signing key to sign responses with")
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parser.add_argument("--tls-certificate-path",
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help="PEM encoded X509 certificate for TLS")
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parser.add_argument("--tls-private-key-path",
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help="PEM encoded private key for TLS")
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parser.add_argument("--tls-dh-params-path",
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help="PEM encoded dh parameters for ephemeral keys")
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parser.add_argument("--bind-port", type=int,
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help="TCP port to listen on")
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parser.add_argument("--bind-host", default="",
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help="Local interface to listen on")
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args = parser.parse_args(remaining_args)
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server_config = vars(args)
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del server_config["config_path"]
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return server_config
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def generate_config(argv):
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parser = argparse.ArgumentParser()
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parser.add_argument("-c", "--config-path", help="Specify config file",
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metavar="CONFIG_FILE", required=True)
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parser.add_argument("--server-name", default=socket.getfqdn(),
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help="The name of the server")
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parser.add_argument("--signing-key-path",
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help="The signing key to sign responses with")
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parser.add_argument("--tls-certificate-path",
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help="PEM encoded X509 certificate for TLS")
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parser.add_argument("--tls-private-key-path",
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help="PEM encoded private key for TLS")
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parser.add_argument("--tls-dh-params-path",
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help="PEM encoded dh parameters for ephemeral keys")
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parser.add_argument("--bind-port", type=int, required=True,
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help="TCP port to listen on")
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parser.add_argument("--bind-host", default="",
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help="Local interface to listen on")
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args = parser.parse_args(argv)
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dir_name = os.path.dirname(args.config_path)
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base_key_name = os.path.join(dir_name, args.server_name)
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if args.signing_key_path is None:
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args.signing_key_path = base_key_name + ".signing.key"
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if args.tls_certificate_path is None:
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args.tls_certificate_path = base_key_name + ".tls.crt"
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if args.tls_private_key_path is None:
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args.tls_private_key_path = base_key_name + ".tls.key"
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if args.tls_dh_params_path is None:
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args.tls_dh_params_path = base_key_name + ".tls.dh"
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if not os.path.exists(args.signing_key_path):
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with open(args.signing_key_path, "w") as signing_key_file:
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key = nacl.signing.SigningKey.generate()
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signing_key_file.write(encode_base64(key.encode()))
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if not os.path.exists(args.tls_private_key_path):
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with open(args.tls_private_key_path, "w") as private_key_file:
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tls_private_key = crypto.PKey()
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tls_private_key.generate_key(crypto.TYPE_RSA, 2048)
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private_key_pem = crypto.dump_privatekey(
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crypto.FILETYPE_PEM, tls_private_key
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)
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private_key_file.write(private_key_pem)
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else:
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with open(args.tls_private_key_path) as private_key_file:
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private_key_pem = private_key_file.read()
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tls_private_key = crypto.load_privatekey(
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crypto.FILETYPE_PEM, private_key_pem
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)
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if not os.path.exists(args.tls_certificate_path):
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with open(args.tls_certificate_path, "w") as certifcate_file:
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cert = crypto.X509()
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subject = cert.get_subject()
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subject.CN = args.server_name
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cert.set_serial_number(1000)
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cert.gmtime_adj_notBefore(0)
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cert.gmtime_adj_notAfter(10 * 365 * 24 * 60 * 60)
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cert.set_issuer(cert.get_subject())
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cert.set_pubkey(tls_private_key)
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cert.sign(tls_private_key, 'sha256')
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cert_pem = crypto.dump_certificate(crypto.FILETYPE_PEM, cert)
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certifcate_file.write(cert_pem)
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if not os.path.exists(args.tls_dh_params_path):
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subprocess.check_call([
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"openssl", "dhparam",
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"-outform", "PEM",
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"-out", args.tls_dh_params_path,
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"2048"
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])
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config = configparser.SafeConfigParser()
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config.add_section("KeyServer")
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for key, value in vars(args).items():
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if key != "config_path":
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config.set("KeyServer", key, str(value))
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with open(args.config_path, "w") as config_file:
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config.write(config_file)
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if __name__ == "__main__":
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generate_config(sys.argv[1:])
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