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100 lines
3.1 KiB
Python
100 lines
3.1 KiB
Python
# (c) 2012, Michael DeHaan <michael.dehaan@gmail.com>
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#
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# This file is part of Ansible
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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#
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################################################
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import paramiko
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import exceptions
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import os
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from ansible.errors import *
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################################################
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class Connection(object):
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''' Handles abstract connections to remote hosts '''
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def __init__(self, runner, transport):
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self.runner = runner
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self.transport = transport
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def connect(self, host):
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conn = None
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if self.transport == 'paramiko':
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conn = ParamikoConnection(self.runner, host)
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if conn is None:
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raise Exception("unsupported connection type")
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return conn.connect()
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################################################
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# want to implement another connection type?
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# follow duck-typing of ParamikoConnection
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# you may wish to read config files in __init__
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# if you have any. Paramiko does not need any.
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class ParamikoConnection(object):
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''' SSH based connections with Paramiko '''
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def __init__(self, runner, host):
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self.ssh = None
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self.runner = runner
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self.host = host
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def connect(self):
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''' connect to the remote host '''
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self.ssh = paramiko.SSHClient()
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self.ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
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try:
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self.ssh.connect(
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self.host,
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username=self.runner.remote_user,
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allow_agent=True,
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look_for_keys=True,
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password=self.runner.remote_pass,
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timeout=self.runner.timeout
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)
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except Exception, e:
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raise AnsibleConnectionFailed(str(e))
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return self
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def exec_command(self, cmd):
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''' run a command on the remote host '''
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stdin, stdout, stderr = self.ssh.exec_command(cmd)
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return (stdin, stdout, stderr)
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def put_file(self, in_path, out_path):
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''' transfer a file from local to remote '''
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if not os.path.exists(in_path):
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raise AnsibleFileNotFound("file or module does not exist: %s" % in_path)
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sftp = self.ssh.open_sftp()
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try:
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sftp.put(in_path, out_path)
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except IOError:
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raise AnsibleException("failed to transfer file to %s" % out_path)
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sftp.close()
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def close(self):
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''' terminate the connection '''
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self.ssh.close()
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############################################
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# add other connection types here
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