cis-kuldeep/PyBitmessage-2021-04-27
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Moved sslProtocolVersion and sslProtocolCiphers to network.tls

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This commit is contained in:
Dmitri Bogomolov 2019-02-04 12:28:42 +02:00
parent b52cb9360f
commit ffbc09758c
Signed by untrusted user: g1itch
GPG Key ID: 720A756F18DEED13
2 changed files with 32 additions and 33 deletions
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42
src/network/tls.py
View File

@ -12,13 +12,37 @@ from network.advanceddispatcher import AdvancedDispatcher
import network.asyncore_pollchoose as asyncore
from queues import receiveDataQueue
import paths
import protocol
_DISCONNECTED_SSL = frozenset((ssl.SSL_ERROR_EOF,))
# sslProtocolVersion
if sys.version_info >= (2, 7, 13):
# this means TLSv1 or higher
# in the future change to
# ssl.PROTOCOL_TLS1.2
sslProtocolVersion = ssl.PROTOCOL_TLS # pylint: disable=no-member
elif sys.version_info >= (2, 7, 9):
# this means any SSL/TLS. SSLv2 and 3 are excluded with an option after context is created
sslProtocolVersion = ssl.PROTOCOL_SSLv23
else:
# this means TLSv1, there is no way to set "TLSv1 or higher" or
# "TLSv1.2" in < 2.7.9
sslProtocolVersion = ssl.PROTOCOL_TLSv1
# ciphers
if ssl.OPENSSL_VERSION_NUMBER >= 0x10100000 and not ssl.OPENSSL_VERSION.startswith("LibreSSL"):
sslProtocolCiphers = "AECDH-AES256-SHA@SECLEVEL=0"
else:
sslProtocolCiphers = "AECDH-AES256-SHA"
class TLSDispatcher(AdvancedDispatcher):
def __init__(self, address=None, sock=None,
certfile=None, keyfile=None, server_side=False, ciphers=protocol.sslProtocolCiphers):
def __init__(
self, address=None, sock=None, certfile=None, keyfile=None,
server_side=False, ciphers=sslProtocolCiphers
):
self.want_read = self.want_write = True
if certfile is None:
self.certfile = os.path.join(paths.codePath(), 'sslkeys', 'cert.pem')
@ -50,13 +74,11 @@ class TLSDispatcher(AdvancedDispatcher):
context.options = ssl.OP_ALL | ssl.OP_NO_SSLv2 | ssl.OP_NO_SSLv3 | ssl.OP_SINGLE_ECDH_USE | ssl.OP_CIPHER_SERVER_PREFERENCE
self.sslSocket = context.wrap_socket(self.socket, server_side = self.server_side, do_handshake_on_connect=False)
else:
self.sslSocket = ssl.wrap_socket(self.socket,
server_side=self.server_side,
ssl_version=protocol.sslProtocolVersion,
certfile=self.certfile,
keyfile=self.keyfile,
ciphers=self.ciphers,
do_handshake_on_connect=False)
self.sslSocket = ssl.wrap_socket(
self.socket, server_side=self.server_side,
ssl_version=sslProtocolVersion,
certfile=self.certfile, keyfile=self.keyfile,
ciphers=self.ciphers, do_handshake_on_connect=False)
self.sslSocket.setblocking(0)
self.want_read = self.want_write = True
self.set_state("tls_handshake")

23
src/protocol.py
View File

@ -12,7 +12,6 @@ import base64
import hashlib
import random
import socket
import ssl
import sys
import time
import traceback
@ -449,25 +448,3 @@ def decryptAndCheckPubkeyPayload(data, address):
traceback.format_exc()
)
return 'failed'
# sslProtocolVersion
if sys.version_info >= (2, 7, 13):
# this means TLSv1 or higher
# in the future change to
# ssl.PROTOCOL_TLS1.2
sslProtocolVersion = ssl.PROTOCOL_TLS # pylint: disable=no-member
elif sys.version_info >= (2, 7, 9):
# this means any SSL/TLS. SSLv2 and 3 are excluded with an option after context is created
sslProtocolVersion = ssl.PROTOCOL_SSLv23
else:
# this means TLSv1, there is no way to set "TLSv1 or higher" or
# "TLSv1.2" in < 2.7.9
sslProtocolVersion = ssl.PROTOCOL_TLSv1
# ciphers
if ssl.OPENSSL_VERSION_NUMBER >= 0x10100000 and not ssl.OPENSSL_VERSION.startswith("LibreSSL"):
sslProtocolCiphers = "AECDH-AES256-SHA@SECLEVEL=0"
else:
sslProtocolCiphers = "AECDH-AES256-SHA"