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我正在尝试使用 pysftp 将远程目录的内容复制到我的本地目录。

这是代码:

cnopts = pysftp.CnOpts()
cnopts.hostkeys = None

p=pysftp.Connection("10.2.2.99",username= "user",
                   password="password", cnopts=cnopts)
remote_path = '/cradius-data/files/webapps/vcm/somedirectory'
local_path = 'E:\\New Folder\\FTP Download Folder'
p.get_r(remotedir=remote_path,localdir=local_path)

我收到以下文件未找到错误消息,

No such file or directory: 'E:\\New Folder\\FTP Download Folder\\./cradius-data/files/webapps/vcm/somedirectory/SOME_File.ZIP'

由于某种原因,这两条路径似乎都被连接起来了,这导致了不正确的 FileNotFound 异常。此外,我已验证该文件是否存在于远程目录中。任何帮助深表感谢。

4

1 回答 1

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这是因为 Windows 的路径字符串中的 '\\',如果您从 Windows 复制到 Linux,则会出现此问题。我遇到了同样的问题,我重写了路径字符串,删除了额外的“\”,一切正常,您可以使用我的代码,在脚本中包含 DirectoryCopy.py 并按照下面的 script.py 使用它。

目录复制.py:

import paramiko
import os
import socket
from stat import S_ISDIR

class SSHSession(object):
# Usage:
# Detects DSA or RSA from key_file, either as a string filename or a
# file object.  Password auth is possible, but I will judge you for 
# using it. So:
# ssh=SSHSession('targetserver.com','root',key_file=open('mykey.pem','r'))
# ssh=SSHSession('targetserver.com','root',key_file='/home/me/mykey.pem')
# ssh=SSHSession('targetserver.com','root','mypassword')
# ssh.put('filename','/remote/file/destination/path')
# ssh.put_all('/path/to/local/source/dir','/path/to/remote/destination')
# ssh.get_all('/path/to/remote/source/dir','/path/to/local/destination')
# ssh.command('echo "Command to execute"')

def __init__(self,hostname,username='root',key_file=None,password=None):
    #
    #  Accepts a file-like object (anything with a readlines() function)  
    #  in either dss_key or rsa_key with a private key.  Since I don't 
    #  ever intend to leave a server open to a password auth.
    #
    self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    self.sock.connect((hostname,22))
    self.t = paramiko.Transport(self.sock)
    self.t.start_client()
    #keys = paramiko.util.load_host_keys(os.path.expanduser('~/.ssh/known_hosts'))
    key = self.t.get_remote_server_key()
    # supposed to check for key in keys, but I don't much care right now to find the right notation
    key_file=None
    if key_file is not None:
        if isinstance(key,str):
            key_file=open(key,'r')
        key_head=key_file.readline()
        key_file.seek(0)
        if 'DSA' in key_head:
            keytype=paramiko.DSSKey
        elif 'RSA' in key_head:
            keytype=paramiko.RSAKey
        else:
            raise Exception("Can't identify key type")
        pkey=keytype.from_private_key(key_file)
        self.t.auth_publickey(username, pkey)
    else:
        if password is not None:
            self.t.auth_password(username,password,fallback=False)
        else: raise Exception('Must supply either key_file or password')
    self.sftp=paramiko.SFTPClient.from_transport(self.t)

def command(self,cmd):
    #  Breaks the command by lines, sends and receives 
    #  each line and its output separately
    #
    #  Returns the server response text as a string

    chan = self.t.open_session()
    chan.get_pty()
    chan.invoke_shell()
    chan.settimeout(20.0)
    ret=''
    try:
        ret+=chan.recv(1024)
    except:
        chan.send('\n')
        ret+=chan.recv(1024)
    for line in cmd.split('\n'):
        chan.send(line.strip() + '\n')
        ret+=chan.recv(1024)
    return ret

def put(self,localfile,remotefile):
    #  Copy localfile to remotefile, overwriting or creating as needed.
    self.sftp.put(localfile,remotefile)

def put_all(self,localpath,remotepath):
    #  recursively upload a full directory
    os.chdir(os.path.split(localpath)[0])
    parent=os.path.split(localpath)[1]
    #print('Parent dir:',parent)
    for walker in os.walk(parent):
        #print("walker:",walker)
        try:
            #print("Directory created with path:",os.path.join(remotepath,walker[0]) )
            #temp path for directory for changin  all the '\' to '/' 
            direcTemp = os.path.join(remotepath,walker[0])
            direcTemp = direcTemp.replace('\x5c','/')
            #self.sftp.mkdir(os.path.join(remotepath,walker[0]))
            self.sftp.mkdir(direcTemp)

        except:
            pass
        for file in walker[2]:
            #in order to transfer the whole directory it is necesssary to change all the '\' to '/'

            localTemp=os.path.join(walker[0],file)
            localTemp=localTemp.replace('\x5c','/')

            remoTemp =os.path.join(remotepath,walker[0],file)
            remoTemp = remoTemp.replace('\x5c','/')

           # print('Local windows path:',localTemp)
            print('Remo Linux path:',remoTemp)

            #self.put(localTemp,os.path.join(remotepath,walker[0],file))
            self.put(localTemp,remoTemp)

def get(self,remotefile,localfile):
    #  Copy remotefile to localfile, overwriting or creating as needed.
    self.sftp.get(remotefile,localfile)

def sftp_walk(self,remotepath):
    # Kindof a stripped down  version of os.walk, implemented for 
    # sftp.  Tried running it flat without the yields, but it really
    # chokes on big directories.
    path=remotepath
    files=[]
    folders=[]
    for f in self.sftp.listdir_attr(remotepath):
        if S_ISDIR(f.st_mode):
            folders.append(f.filename)
        else:
            files.append(f.filename)
    print (path,folders,files)
    yield path,folders,files
    for folder in folders:
        new_path=os.path.join(remotepath,folder)
        for x in self.sftp_walk(new_path):
            yield x

def get_all(self,remotepath,localpath):
    #  recursively download a full directory
    #  Harder than it sounded at first, since paramiko won't walk
    #
    # For the record, something like this would gennerally be faster:
    # ssh user@host 'tar -cz /source/folder' | tar -xz

    self.sftp.chdir(os.path.split(remotepath)[0])
    parent=os.path.split(remotepath)[1]
    try:
        os.mkdir(localpath)
    except:
        pass
    for walker in self.sftp_walk(parent):
        try:
            os.mkdir(os.path.join(localpath,walker[0]))
        except:
            pass
        for file in walker[2]:
            self.get(os.path.join(walker[0],file),os.path.join(localpath,walker[0],file))
def write_command(self,text,remotefile):
    #  Writes text to remotefile, and makes remotefile executable.
    #  This is perhaps a bit niche, but I was thinking I needed it.
    #  For the record, I was incorrect.
    self.sftp.open(remotefile,'w').write(text)
    self.sftp.chmod(remotefile,755)

脚本.py:

import paramiko
from DirectoryCopy import SSHSession

def creat_ssh_connection(host, port, username, password, keyfilepath, keyfiletype):
    ssh = None
    key = None
    try:
        if keyfilepath is not None:
            # Get private key used to authenticate user.
            if keyfiletype == 'DSA':
                # The private key is a DSA type key.
                key = paramiko.DSSKey.from_private_key_file(keyfilepath)
            else:
                # The private key is a RSA type key.
                key = paramiko.RSAKey.from_private_key(keyfilepath)

        # Create the SSH client.
        ssh = paramiko.SSHClient()

        # Setting the missing host key policy to AutoAddPolicy will silently add any missing host keys.
        # Using WarningPolicy, a warning message will be logged if the host key is not previously known
        # but all host keys will still be accepted.
        # Finally, RejectPolicy will reject all hosts which key is not previously known.
        ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())

        # Connect to the host.
        if key is not None:
            # Authenticate with a username and a private key located in a file.
            ssh.connect(host, port, username, None, key)
        else:
            # Authenticate with a username and a password.
            ssh.connect(host, port, username, password)    

        #console = ssh.invoke_shell()
        #console.keep_this = ssh
        return ssh
    except:
        print("exception")



ssh=SSHSession('ipaddres','user_name',password='password_string')
#directory_win is copied inside the directory_lin folder.
ssh.put_all('../../windows/example/directory_win','/linux/example/directory_lin/')
于 2018-05-08T08:38:41.667 回答