96 lines
3.4 KiB
Python
96 lines
3.4 KiB
Python
# Copyright: (c) OpenSpug Organization. https://github.com/openspug/spug
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# Copyright: (c) <spug.dev@gmail.com>
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# Released under the MIT License.
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from paramiko.client import SSHClient, AutoAddPolicy
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from paramiko.config import SSH_PORT
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from paramiko.rsakey import RSAKey
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from paramiko.ssh_exception import AuthenticationException
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from io import StringIO
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class SSH:
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def __init__(self, hostname, port=SSH_PORT, username='root', pkey=None, password=None, connect_timeout=10):
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if pkey is None and password is None:
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raise Exception('public key and password must have one is not None')
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self.client = None
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self.arguments = {
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'hostname': hostname,
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'port': port,
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'username': username,
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'password': password,
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'pkey': RSAKey.from_private_key(StringIO(pkey)) if isinstance(pkey, str) else pkey,
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'timeout': connect_timeout,
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}
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@staticmethod
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def generate_key():
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key_obj = StringIO()
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key = RSAKey.generate(2048)
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key.write_private_key(key_obj)
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return key_obj.getvalue(), 'ssh-rsa ' + key.get_base64()
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def add_public_key(self, public_key):
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command = f'mkdir -p -m 700 ~/.ssh && \
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echo {public_key!r} >> ~/.ssh/authorized_keys && \
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chmod 600 ~/.ssh/authorized_keys'
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code, out = self.exec_command(command)
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if code != 0:
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raise Exception(out)
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def ping(self):
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with self:
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return True
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def get_client(self):
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if self.client is not None:
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return self.client
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self.client = SSHClient()
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self.client.set_missing_host_key_policy(AutoAddPolicy)
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self.client.connect(**self.arguments)
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return self.client
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def put_file(self, local_path, remote_path):
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with self as cli:
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sftp = cli.open_sftp()
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sftp.put(local_path, remote_path)
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sftp.close()
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def exec_command(self, command, timeout=1800, environment=None):
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command = 'set -e\n' + command
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with self as cli:
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chan = cli.get_transport().open_session()
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chan.settimeout(timeout)
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chan.set_combine_stderr(True)
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if environment:
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str_env = ' '.join(f"{k}='{v}'" for k, v in environment.items())
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command = f'export {str_env} && {command}'
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chan.exec_command(command)
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out = chan.makefile("r", -1)
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return chan.recv_exit_status(), out.read()
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def exec_command_with_stream(self, command, timeout=1800, environment=None):
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command = 'set -e\n' + command
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with self as cli:
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chan = cli.get_transport().open_session()
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chan.settimeout(timeout)
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chan.set_combine_stderr(True)
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if environment:
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str_env = ' '.join(f"{k}='{v}'" for k, v in environment.items())
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command = f'export {str_env} && {command}'
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chan.exec_command(command)
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stdout = chan.makefile("r", -1)
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out = stdout.readline()
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while out:
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yield chan.exit_status, out
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out = stdout.readline()
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yield chan.recv_exit_status(), out
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def __enter__(self):
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if self.client is not None:
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raise RuntimeError('Already connected')
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return self.get_client()
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def __exit__(self, exc_type, exc_val, exc_tb):
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self.client.close()
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self.client = None
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