269 lines
8.3 KiB
Python
269 lines
8.3 KiB
Python
#
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# (c) 2015 Peter Sprygada, <psprygada@ansible.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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import re
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from ansible.module_utils.urls import fetch_url
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from ansible.module_utils.shell import Shell, HAS_PARAMIKO
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from ansible.module_utils.basic import AnsibleModule, env_fallback
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from ansible.module_utils.netcfg import parse
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NET_PASSWD_RE = re.compile(r"[\r\n]?password: $", re.I)
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NET_COMMON_ARGS = dict(
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host=dict(required=True),
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port=dict(type='int'),
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username=dict(fallback=(env_fallback, ['ANSIBLE_NET_USERNAME'])),
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password=dict(no_log=True, fallback=(env_fallback, ['ANSIBLE_NET_PASSWORD'])),
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ssh_keyfile=dict(fallback=(env_fallback, ['ANSIBLE_NET_SSH_KEYFILE']), type='path'),
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transport=dict(default='cli', choices=['cli', 'nxapi']),
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use_ssl=dict(default=False, type='bool'),
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validate_certs=dict(default=True, type='bool'),
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provider=dict(type='dict')
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)
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NXAPI_COMMAND_TYPES = ['cli_show', 'cli_show_ascii', 'cli_conf', 'bash']
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NXAPI_ENCODINGS = ['json', 'xml']
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CLI_PROMPTS_RE = [
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re.compile(r'[\r\n]?[a-zA-Z]{1}[a-zA-Z0-9-]*[>|#|%](?:\s*)$'),
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re.compile(r'[\r\n]?[a-zA-Z]{1}[a-zA-Z0-9-]*\(.+\)#(?:\s*)$')
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]
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CLI_ERRORS_RE = [
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re.compile(r"% ?Error"),
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re.compile(r"^% \w+", re.M),
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re.compile(r"% ?Bad secret"),
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re.compile(r"invalid input", re.I),
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re.compile(r"(?:incomplete|ambiguous) command", re.I),
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re.compile(r"connection timed out", re.I),
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re.compile(r"[^\r\n]+ not found", re.I),
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re.compile(r"'[^']' +returned error code: ?\d+"),
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re.compile(r"syntax error"),
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re.compile(r"unknown command")
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]
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def to_list(val):
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if isinstance(val, (list, tuple)):
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return list(val)
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elif val is not None:
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return [val]
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else:
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return list()
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class Nxapi(object):
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def __init__(self, module):
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self.module = module
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# sets the module_utils/urls.py req parameters
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self.module.params['url_username'] = module.params['username']
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self.module.params['url_password'] = module.params['password']
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self.url = None
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self._nxapi_auth = None
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def _get_body(self, commands, command_type, encoding, version='1.0', chunk='0', sid=None):
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"""Encodes a NXAPI JSON request message
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"""
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if isinstance(commands, (list, set, tuple)):
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commands = ' ;'.join(commands)
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if encoding not in NXAPI_ENCODINGS:
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msg = 'invalid encoding, received %s, exceped one of %s' % \
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(encoding, ','.join(NXAPI_ENCODINGS))
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self.module_fail_json(msg=msg)
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msg = {
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'version': version,
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'type': command_type,
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'chunk': chunk,
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'sid': sid,
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'input': commands,
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'output_format': encoding
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}
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return dict(ins_api=msg)
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def connect(self):
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host = self.module.params['host']
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port = self.module.params['port']
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if self.module.params['use_ssl']:
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proto = 'https'
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if not port:
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port = 443
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else:
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proto = 'http'
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if not port:
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port = 80
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self.url = '%s://%s:%s/ins' % (proto, host, port)
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def send(self, commands, command_type='cli_show_ascii', encoding='json'):
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"""Send commands to the device.
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"""
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clist = to_list(commands)
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if command_type not in NXAPI_COMMAND_TYPES:
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msg = 'invalid command_type, received %s, exceped one of %s' % \
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(command_type, ','.join(NXAPI_COMMAND_TYPES))
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self.module_fail_json(msg=msg)
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data = self._get_body(clist, command_type, encoding)
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data = self.module.jsonify(data)
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headers = {'Content-Type': 'application/json'}
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if self._nxapi_auth:
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headers['Cookie'] = self._nxapi_auth
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response, headers = fetch_url(self.module, self.url, data=data,
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headers=headers, method='POST')
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self._nxapi_auth = headers.get('set-cookie')
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if headers['status'] != 200:
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self.module.fail_json(**headers)
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response = self.module.from_json(response.read())
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result = list()
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output = response['ins_api']['outputs']['output']
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for item in to_list(output):
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if item['code'] != '200':
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self.module.fail_json(**item)
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else:
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result.append(item['body'])
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return result
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class Cli(object):
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def __init__(self, module):
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self.module = module
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self.shell = None
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def connect(self, **kwargs):
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host = self.module.params['host']
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port = self.module.params['port'] or 22
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username = self.module.params['username']
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password = self.module.params['password']
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key_filename = self.module.params['ssh_keyfile']
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try:
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self.shell = Shell(prompts_re=CLI_PROMPTS_RE, errors_re=CLI_ERRORS_RE, kickstart=False)
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self.shell.open(host, port=port, username=username, password=password, key_filename=key_filename)
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except Exception, exc:
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msg = 'failed to connect to %s:%s - %s' % (host, port, str(exc))
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self.module.fail_json(msg=msg)
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def send(self, commands, encoding='text'):
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return self.shell.send(commands)
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class NetworkModule(AnsibleModule):
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def __init__(self, *args, **kwargs):
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super(NetworkModule, self).__init__(*args, **kwargs)
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self.connection = None
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self._config = None
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self._connected = False
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@property
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def connected(self):
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return self._connected
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@property
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def config(self):
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if not self._config:
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self._config = self.get_config()
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return self._config
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def _load_params(self):
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super(NetworkModule, self)._load_params()
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provider = self.params.get('provider') or dict()
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for key, value in provider.items():
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if key in NET_COMMON_ARGS.keys():
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if self.params.get(key) is None and value is not None:
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self.params[key] = value
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def connect(self):
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if self.params['transport'] == 'nxapi':
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self.connection = Nxapi(self)
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else:
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self.connection = Cli(self)
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self.connection.connect()
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if self.params['transport'] == 'cli':
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self.connection.send('terminal length 0')
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self._connected = True
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def configure_cli(self, commands):
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commands = to_list(commands)
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commands.insert(0, 'configure')
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responses = self.execute(commands)
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responses.pop(0)
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return responses
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def configure(self, commands):
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commands = to_list(commands)
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if self.params['transport'] == 'cli':
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return self.configure_cli(commands)
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else:
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return self.execute(commands, command_type='cli_conf')
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def execute(self, commands, **kwargs):
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if not self.connected:
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self.connect()
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return self.connection.send(commands, **kwargs)
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def disconnect(self):
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self.connection.close()
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def parse_config(self, cfg):
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return parse(cfg, indent=2)
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def get_config(self):
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cmd = 'show running-config'
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if self.params.get('include_defaults'):
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cmd += ' all'
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response = self.execute(cmd)
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return response[0]
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def get_module(**kwargs):
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"""Return instance of NetworkModule
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"""
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argument_spec = NET_COMMON_ARGS.copy()
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if kwargs.get('argument_spec'):
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argument_spec.update(kwargs['argument_spec'])
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kwargs['argument_spec'] = argument_spec
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module = NetworkModule(**kwargs)
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# HAS_PARAMIKO is set by module_utils/shell.py
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if module.params['transport'] == 'cli' and not HAS_PARAMIKO:
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module.fail_json(msg='paramiko is required but does not appear to be installed')
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return module
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