Hi everybody,I am student and need help of any one.I am working on internship
and I have to implement a SFTP client usign twisted conch module.I have program
thoe code to establish th ssh tunnel using password authentication. I arrive to
create directory with "MakeDirectory" method of FileTransfertClient class.But
my objective is to upload and download files and the FileTransfertClient class
has no method [or as I konw ] to do that.
Can you help me with way to do the uploading and the downloding with twisted
conch?
Here is my program.<code>'''Created on 8 avr. 2015
@author: hsanfo'''
from sys import stdout
from twisted.python.log import startLogging, err
from twisted.internet import reactorfrom twisted.internet.defer import Deferred
from twisted.conch.ssh.common import NSimport
twisted.conch.scripts.cftp.ClientOptionsfrom twisted.conch.scripts.cftp import
ClientOptionsfrom twisted.conch.ssh.filetransfer import FileTransferClientfrom
twisted.conch.client.connect import connectfrom twisted.conch.client.default
import SSHUserAuthClient, verifyHostKeyfrom twisted.conch.ssh.connection import
SSHConnectionfrom twisted.conch.ssh.channel import SSHChannel
from twisted.conch.ssh import keys, userauthfrom twisted.internet import defer
class SFTPSession(SSHChannel): name = 'session'
def channelOpen(self, whatever): d = self.conn.sendRequest(
self, 'subsystem', NS('sftp'), wantReply=True)
d.addCallbacks(self._cbSFTP)
def _cbSFTP(self, result): client = FileTransferClient()
client.makeConnection(self) self.dataReceived = client.dataReceived
self.conn._sftp.callback(client)
class SFTPConnection(SSHConnection): def serviceStarted(self):
self.openChannel(SFTPSession())
class ClientUserAuth(userauth.SSHUserAuthClient): def getPassword(self,
prompt = None): #normal password authentication print "PASSWORD
AUTH" return defer.succeed('test') # <-- YOUR PASSWORD
def getGenericAnswers(self, name, instruction, prompts):
#interactive password authentication print "INTERACTIVE AUTH"
response = ['']*len(prompts) for i, p in enumerate(prompts):
try: if('password' in p[0].lower()):
response[i] = 'test' # <-- YOUR PASSWORD except: pass
#The response is always a sequence, and the length of it is always
#identical to the length of prompts return defer.succeed(response)
def sftp(user, host, port): options = ClientOptions() options['host']
= host options['port'] = port conn = SFTPConnection() conn._sftp =
Deferred() auth = SSHUserAuthClient(user, options, conn) #auth =
ClientUserAuth(user, options, conn) #connect(host, port, options,
verifyHostKey, auth) connect(host, port, options, None, auth) return
conn._sftp
def transfer(client): d = client.makeDirectory('foobarbaz', {}) def
cbDir(ignored): print 'Made directory' d.addCallback(cbDir) return
d
def main(): startLogging(stdout)
user = 'test' host = '192.168.29.129' port = 22 d = sftp(user,
host, port) d.addCallback(transfer) d.addErrback(err, "Problem with SFTP
transfer") d.addCallback(lambda ignored: reactor.stop()) reactor.run()
if __name__ == '__main__': main()<code> Best regards
SANFO
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