104 lines
4.0 KiB
Python
104 lines
4.0 KiB
Python
# -*- coding: utf-8 -*-
|
|
# Copyright 2014 matrix.org
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
|
|
from _base import SQLBaseStore
|
|
|
|
from twisted.internet import defer
|
|
|
|
import OpenSSL
|
|
import nacl.signing
|
|
|
|
class KeyStore(SQLBaseStore):
|
|
"""Persistence for signature verification keys and tls X.509 certificates
|
|
"""
|
|
|
|
@defer.inlineCallbacks
|
|
def get_server_certificate(self, server_name):
|
|
"""Retrieve the TLS X.509 certificate for the given server
|
|
Args:
|
|
server_name (bytes): The name of the server.
|
|
Returns:
|
|
(OpenSSL.crypto.X509): The tls certificate.
|
|
"""
|
|
tls_certificate_bytes, = yield self._simple_select_one(
|
|
table="server_tls_certificates",
|
|
keyvalues={"server_name": server_name},
|
|
retcols=("tls_certificate",),
|
|
)
|
|
tls_certificate = OpenSSL.crypto.load_certificate(
|
|
OpenSSL.crypto.FILETYPE_ASN1, tls_certificate_bytes,
|
|
)
|
|
defer.returnValue(tls_certificate)
|
|
|
|
def store_server_certificate(self, server_name, key_server, ts_now_ms,
|
|
tls_certificate):
|
|
"""Stores the TLS X.509 certificate for the given server
|
|
Args:
|
|
server_name (bytes): The name of the server.
|
|
key_server (bytes): Where the certificate was looked up
|
|
ts_now_ms (int): The time now in milliseconds
|
|
tls_certificate (OpenSSL.crypto.X509): The X.509 certificate.
|
|
"""
|
|
tls_certificate_bytes = OpenSSL.crypto.dump_certificate(
|
|
OpenSSL.crypto.FILETYPE_ASN1, tls_certificate
|
|
)
|
|
return self._simple_insert(
|
|
table="server_tls_certificates",
|
|
keyvalues={
|
|
"server_name": server_name,
|
|
"key_server": key_server,
|
|
"ts_added_ms": ts_now_ms,
|
|
"tls_certificate": tls_certificate_bytes,
|
|
},
|
|
)
|
|
|
|
@defer.inlineCallbacks
|
|
def get_server_verification_key(self, server_name):
|
|
"""Retrieve the NACL verification key for a given server
|
|
Args:
|
|
server_name (bytes): The name of the server.
|
|
Returns:
|
|
(nacl.signing.VerifyKey): The verification key.
|
|
"""
|
|
verification_key_bytes, = yield self._simple_select_one(
|
|
table="server_signature_keys",
|
|
key_values={"server_name": server_name},
|
|
retcols=("tls_certificate",),
|
|
)
|
|
verification_key = nacl.signing.VerifyKey(verification_key_bytes)
|
|
defer.returnValue(verify_key)
|
|
|
|
def store_server_verification_key(self, server_name, key_version,
|
|
key_server, ts_now_ms, verification_key):
|
|
"""Stores a NACL verification key for the given server.
|
|
Args:
|
|
server_name (bytes): The name of the server.
|
|
key_version (bytes): The version of the key for the server.
|
|
key_server (bytes): Where the verification key was looked up
|
|
ts_now_ms (int): The time now in milliseconds
|
|
verification_key (nacl.signing.VerifyKey): The NACL verify key.
|
|
"""
|
|
verification_key_bytes = verification_key.encode()
|
|
return self._simple_insert(
|
|
table="server_signature_keys",
|
|
key_values={
|
|
"server_name": server_name,
|
|
"key_version": key_version,
|
|
"key_server": key_server,
|
|
"ts_added_ms": ts_now_ms,
|
|
"verification_key": verification_key_bytes,
|
|
},
|
|
)
|