Robot Framework - SSH 库 - 使用公钥登录

如何解决Robot Framework - SSH 库 - 使用公钥登录

我正在尝试使用从带有 SSH 库的机器人框架到托管在 AWS 云上的机器的私钥创建 SSH 连接。使用的关键字是 - 使用公钥登录。 以下是当前在 Eclipse 中使用红色编辑器编写的代码

*** Variables ***
${hostname}    <hostname>
${username}    <username>


*** Test Cases ***
ConnectionToJump
    Set Log Level    DEBUG
    Enable Ssh Logging    logfile.txt
    Log    Starting the connection to jump server
    ${connectionIndex}    Open Connection    ${hostname}    port=22
    ${output}    Login With Public Key    ${username}    C:/Users/<username>/.ssh/id_rsa.ppk
    Log    ${output}

但不幸的是，这在 Eclipse 控制台中引发了错误，看起来像

Starting test: Demo-Telemetry.TestCases.ConnectToJumpServer.ConnectionToJump
20210616 12:52:54.448 : INFO : Log level changed from INFO to DEBUG.
20210616 12:52:54.449 : INFO : SSH log is written to <a href="logfile.txt">file</a>.
20210616 12:52:54.449 : INFO : Starting the connection to jump server
20210616 12:52:54.450 : INFO : ${connectionIndex} = 1
20210616 12:52:54.451 : INFO : Logging into '<hostname>:22' as '<username>'.
20210616 12:52:54.643 : DEBUG : Adding ecdsa-sha2-nistp256 host key for <hostname>: b'db779d1ed1b0995ec97b1cbe96c27c5f'
20210616 12:52:54.888 : FAIL : Login with public key failed for user '<username>'.
20210616 12:52:54.888 : DEBUG : Traceback (most recent call last):
  File "D:\Program Files (x86)\Python\Python39\Lib\site-packages\SSHLibrary\library.py",line 1043,in login_with_public_key
    return self._login(self.current.login_with_public_key,username,File "D:\Program Files (x86)\Python\Python39\Lib\site-packages\SSHLibrary\library.py",line 1059,in _login
    raise RuntimeError(e)
Ending test: Demo-Telemetry.TestCases.ConnectToJumpServer.ConnectionToJump

从logfile.txt查看SSH日志，信息如下

DEB [20210616-12:52:54.532] thr=1   paramiko.transport: starting thread (client mode): 0xfdaa1340
DEB [20210616-12:52:54.533] thr=1   paramiko.transport: Local version/idstring: SSH-2.0-paramiko_2.7.2
DEB [20210616-12:52:54.558] thr=1   paramiko.transport: Remote version/idstring: SSH-2.0-OpenSSH_7.4
INF [20210616-12:52:54.558] thr=1   paramiko.transport: Connected (version 2.0,client OpenSSH_7.4)
DEB [20210616-12:52:54.607] thr=1   paramiko.transport: kex algos:['diffie-hellman-group-exchange-sha256','diffie-hellman-group14-sha256','diffie-hellman-group16-sha512','ecdh-sha2-nistp256','ecdh-sha2-nistp384','ecdh-sha2-nistp521'] server key:['ssh-rsa','rsa-sha2-512','rsa-sha2-256','ecdsa-sha2-nistp256','ssh-dss'] client encrypt:['[e-mail]','[e-mail]','aes128-cbc','aes192-cbc','aes256-cbc','aes128-ctr','aes192-ctr','aes256-ctr'] server encrypt:['[e-mail]','aes256-ctr'] client mac:['[e-mail]','[e-mail]','hmac-sha2-512','hmac-sha2-256'] server mac:['[e-mail]','hmac-sha2-256'] client compress:['none','[e-mail]'] server compress:['none','[e-mail]'] client lang:[''] server lang:[''] kex follows?False
DEB [20210616-12:52:54.607] thr=1   paramiko.transport: Kex agreed: ecdh-sha2-nistp256
DEB [20210616-12:52:54.607] thr=1   paramiko.transport: HostKey agreed: ecdsa-sha2-nistp256
DEB [20210616-12:52:54.607] thr=1   paramiko.transport: Cipher agreed: aes128-ctr
DEB [20210616-12:52:54.608] thr=1   paramiko.transport: MAC agreed: hmac-sha2-256
DEB [20210616-12:52:54.608] thr=1   paramiko.transport: Compression agreed: none
DEB [20210616-12:52:54.642] thr=1   paramiko.transport: kex engine KexNistp256 specified hash_algo <built-in function openssl_sha256>
DEB [20210616-12:52:54.642] thr=1   paramiko.transport: Switch to new keys ...
DEB [20210616-12:52:54.643] thr=2   paramiko.transport: Adding ecdsa-sha2-nistp256 host key for sshhost.fftest.tst.zipbo.mop-test.comp.db.de: b'db779d1ed1b0995ec97b1cbe96c27c5f'
DEB [20210616-12:52:54.747] thr=1   paramiko.transport: userauth is OK
DEB [20210616-12:52:54.782] thr=1   paramiko.transport: Authentication type (password) not permitted.
DEB [20210616-12:52:54.783] thr=1   paramiko.transport: Allowed methods: ['publickey']
DEB [20210616-12:52:54.815] thr=1   paramiko.transport: userauth is OK
DEB [20210616-12:52:54.857] thr=1   paramiko.transport: Authentication type (none) not permitted.
DEB [20210616-12:52:54.857] thr=1   paramiko.transport: Allowed methods: ['publickey']
DEB [20210616-12:52:54.884] thr=1   paramiko.transport: userauth is OK
ERR [20210616-12:52:54.884] thr=1   paramiko.transport: Unknown exception: 'NoneType' object has no attribute 'public_blob'
ERR [20210616-12:52:54.886] thr=1   paramiko.transport: Traceback (most recent call last):
ERR [20210616-12:52:54.886] thr=1   paramiko.transport:   File "D:\Program Files (x86)\Python\Python39\Lib\site-packages\paramiko\transport.py",line 2109,in run
ERR [20210616-12:52:54.886] thr=1   paramiko.transport:     handler(self.auth_handler,m)
ERR [20210616-12:52:54.886] thr=1   paramiko.transport:   File "D:\Program Files (x86)\Python\Python39\Lib\site-packages\paramiko\auth_handler.py",line 289,in _parse_service_accept
ERR [20210616-12:52:54.886] thr=1   paramiko.transport:     if self.private_key.public_blob:
ERR [20210616-12:52:54.886] thr=1   paramiko.transport: AttributeError: 'NoneType' object has no attribute 'public_blob'

我可以使用相同的密钥文件成功地使用 PuTTY 和 MobaXterm 创建连接。

您能否帮助我了解我在做什么错误或需要更改哪些内容才能成功连接。

谢谢

解决方法

机器人框架 SSH 库使用 paramiko。基于 this paramiko 无法解析 ppk 密钥。您需要将 .ppk 文件转换为 openssh 私钥格式