/usr/lib/python2.7/dist-packages/twisted/conch/openssh_compat/factory.py is in python-twisted-conch 1:13.2.0-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 | # -*- test-case-name: twisted.conch.test.test_openssh_compat -*-
# Copyright (c) Twisted Matrix Laboratories.
# See LICENSE for details.
"""
Factory for reading openssh configuration files: public keys, private keys, and
moduli file.
"""
import os, errno
from twisted.python import log
from twisted.python.util import runAsEffectiveUser
from twisted.conch.ssh import keys, factory, common
from twisted.conch.openssh_compat import primes
class OpenSSHFactory(factory.SSHFactory):
dataRoot = '/usr/local/etc'
moduliRoot = '/usr/local/etc' # for openbsd which puts moduli in a different
# directory from keys
def getPublicKeys(self):
"""
Return the server public keys.
"""
ks = {}
for filename in os.listdir(self.dataRoot):
if filename[:9] == 'ssh_host_' and filename[-8:]=='_key.pub':
try:
k = keys.Key.fromFile(
os.path.join(self.dataRoot, filename))
t = common.getNS(k.blob())[0]
ks[t] = k
except Exception, e:
log.msg('bad public key file %s: %s' % (filename, e))
return ks
def getPrivateKeys(self):
"""
Return the server private keys.
"""
privateKeys = {}
for filename in os.listdir(self.dataRoot):
if filename[:9] == 'ssh_host_' and filename[-4:]=='_key':
fullPath = os.path.join(self.dataRoot, filename)
try:
key = keys.Key.fromFile(fullPath)
except IOError, e:
if e.errno == errno.EACCES:
# Not allowed, let's switch to root
key = runAsEffectiveUser(0, 0, keys.Key.fromFile, fullPath)
keyType = keys.objectType(key.keyObject)
privateKeys[keyType] = key
else:
raise
except Exception, e:
log.msg('bad private key file %s: %s' % (filename, e))
else:
keyType = keys.objectType(key.keyObject)
privateKeys[keyType] = key
return privateKeys
def getPrimes(self):
try:
return primes.parseModuliFile(self.moduliRoot+'/moduli')
except IOError:
return None
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