blob: 50a8feaae29aa84d826dd003bd5d67114bc0456e (
plain)
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_default -*-
# Copyright (c) Twisted Matrix Laboratories.
# See LICENSE for details.
"""
Accesses the key agent for user authentication.
Maintainer: Paul Swartz
"""
import os
from twisted.conch.ssh import agent, channel, keys
from twisted.internet import protocol, reactor
from twisted.python import log
class SSHAgentClient(agent.SSHAgentClient):
def __init__(self):
agent.SSHAgentClient.__init__(self)
self.blobs = []
def getPublicKeys(self):
return self.requestIdentities().addCallback(self._cbPublicKeys)
def _cbPublicKeys(self, blobcomm):
log.msg('got %i public keys' % len(blobcomm))
self.blobs = [x[0] for x in blobcomm]
def getPublicKey(self):
"""
Return a L{Key} from the first blob in C{self.blobs}, if any, or
return C{None}.
"""
if self.blobs:
return keys.Key.fromString(self.blobs.pop(0))
return None
class SSHAgentForwardingChannel(channel.SSHChannel):
def channelOpen(self, specificData):
cc = protocol.ClientCreator(reactor, SSHAgentForwardingLocal)
d = cc.connectUNIX(os.environ['SSH_AUTH_SOCK'])
d.addCallback(self._cbGotLocal)
d.addErrback(lambda x:self.loseConnection())
self.buf = ''
def _cbGotLocal(self, local):
self.local = local
self.dataReceived = self.local.transport.write
self.local.dataReceived = self.write
def dataReceived(self, data):
self.buf += data
def closed(self):
if self.local:
self.local.loseConnection()
self.local = None
class SSHAgentForwardingLocal(protocol.Protocol):
pass
|
