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# # (c) 2017 Red Hat Inc. # # This file is part of Ansible # # Ansible is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # Ansible is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with Ansible. If not, see <http://www.gnu.org/licenses/>. # from __future__ import (absolute_import, division, print_function) __metaclass__ = type DOCUMENTATION = ''' --- author: Unknown (!UNKNOWN) name: ce short_description: Use ce netconf plugin to run netconf commands on Huawei Cloudengine platform description: - This ce plugin provides low level abstraction apis for sending and receiving netconf commands from Huawei Cloudengine network devices. options: ncclient_device_handler: type: str default: huawei description: - Specifies the ncclient device handler name for Huawei Cloudengine. To identify the ncclient device handler name refer ncclient library documentation. ''' import json import re from ansible.module_utils._text import to_text, to_bytes from ansible.errors import AnsibleConnectionFailure from ansible.plugins.netconf import NetconfBase, ensure_ncclient try: from ncclient import manager from ncclient.operations import RPCError from ncclient.transport.errors import SSHUnknownHostError from ncclient.xml_ import to_ele, to_xml, new_ele HAS_NCCLIENT = True except (ImportError, AttributeError): # paramiko and gssapi are incompatible and raise AttributeError not ImportError HAS_NCCLIENT = False try: from lxml.etree import fromstring except ImportError: from xml.etree.ElementTree import fromstring class Netconf(NetconfBase): @ensure_ncclient def get_text(self, ele, tag): try: return to_text(ele.find(tag).text, errors='surrogate_then_replace').strip() except AttributeError: pass @ensure_ncclient def get_device_info(self): device_info = dict() device_info['network_os'] = 'ce' filter_xml = '''<filter type="subtree"> <system xmlns="http://www.huawei.com/netconf/vrp" content-version="1.0" format-version="1.0"> <systemInfo> <sysName></sysName> <sysContact></sysContact> <productVer></productVer> <platformVer></platformVer> <productName></productName> </systemInfo> </system> </filter>''' data = self.get(filter_xml) data = re.sub(r'xmlns=".+?"', r'', data) reply = fromstring(to_bytes(data, errors='surrogate_or_strict')) sw_info = reply.find('.//systemInfo') device_info['network_os_version'] = self.get_text(sw_info, 'productVer') device_info['network_os_hostname'] = self.get_text(sw_info, 'sysName') device_info['network_os_platform_version'] = self.get_text(sw_info, 'platformVer') device_info['network_os_platform'] = self.get_text(sw_info, 'productName') return device_info def execute_rpc(self, name): """RPC to be execute on remote device :name: Name of rpc in string format""" return self.rpc(name) @ensure_ncclient def load_configuration(self, *args, **kwargs): """Loads given configuration on device :format: Format of configuration (xml, text, set) :action: Action to be performed (merge, replace, override, update) :target: is the name of the configuration datastore being edited :config: is the configuration in string format.""" if kwargs.get('config'): kwargs['config'] = to_bytes(kwargs['config'], errors='surrogate_or_strict') if kwargs.get('format', 'xml') == 'xml': kwargs['config'] = to_ele(kwargs['config']) try: return self.m.load_configuration(*args, **kwargs).data_xml except RPCError as exc: raise Exception(to_xml(exc.xml)) def get_capabilities(self): result = dict() result['rpc'] = self.get_base_rpc() + ['execute_rpc', 'load_configuration', 'get_configuration', 'compare_configuration', 'execute_action', 'halt', 'reboot', 'execute_nc_cli', 'dispatch_rpc'] result['network_api'] = 'netconf' result['device_info'] = self.get_device_info() result['server_capabilities'] = list(self.m.server_capabilities) result['client_capabilities'] = list(self.m.client_capabilities) result['session_id'] = self.m.session_id return json.dumps(result) @staticmethod @ensure_ncclient def guess_network_os(obj): try: m = manager.connect( host=obj._play_context.remote_addr, port=obj._play_context.port or 830, username=obj._play_context.remote_user, password=obj._play_context.password, key_filename=obj.key_filename, hostkey_verify=obj.get_option('host_key_checking'), look_for_keys=obj.get_option('look_for_keys'), allow_agent=obj._play_context.allow_agent, timeout=obj.get_option('persistent_connect_timeout'), # We need to pass in the path to the ssh_config file when guessing # the network_os so that a jumphost is correctly used if defined ssh_config=obj._ssh_config ) except SSHUnknownHostError as exc: raise AnsibleConnectionFailure(to_text(exc)) guessed_os = None for c in m.server_capabilities: if re.search('huawei', c): guessed_os = 'ce' break m.close_session() return guessed_os def get_configuration(self, *args, **kwargs): """Retrieve all or part of a specified configuration. :format: format in configuration should be retrieved :filter: specifies the portion of the configuration to retrieve (by default entire configuration is retrieved)""" return self.m.get_configuration(*args, **kwargs).data_xml def compare_configuration(self, *args, **kwargs): """Compare configuration :rollback: rollback id""" return self.m.compare_configuration(*args, **kwargs).data_xml @ensure_ncclient def execute_action(self, xml_str): """huawei execute-action""" con_obj = None try: con_obj = self.m.action(action=xml_str) except RPCError as exc: raise Exception(to_xml(exc.xml)) return con_obj.xml def halt(self): """reboot the device""" return self.m.halt().data_xml def reboot(self): """reboot the device""" return self.m.reboot().data_xml @ensure_ncclient def get(self, *args, **kwargs): try: if_rpc_reply = kwargs.pop('if_rpc_reply', False) if if_rpc_reply: return self.m.get(*args, **kwargs).xml return self.m.get(*args, **kwargs).data_xml except RPCError as exc: raise Exception(to_xml(exc.xml)) @ensure_ncclient def get_config(self, *args, **kwargs): try: return self.m.get_config(*args, **kwargs).data_xml except RPCError as exc: raise Exception(to_xml(exc.xml)) @ensure_ncclient def edit_config(self, *args, **kwargs): try: return self.m.edit_config(*args, **kwargs).xml except RPCError as exc: raise Exception(to_xml(exc.xml)) @ensure_ncclient def execute_nc_cli(self, *args, **kwargs): try: return self.m.cli(*args, **kwargs).xml except RPCError as exc: raise Exception(to_xml(exc.xml)) @ensure_ncclient def commit(self, *args, **kwargs): try: return self.m.commit(*args, **kwargs).data_xml except RPCError as exc: raise Exception(to_xml(exc.xml)) def validate(self, *args, **kwargs): return self.m.validate(*args, **kwargs).data_xml def discard_changes(self, *args, **kwargs): return self.m.discard_changes(*args, **kwargs).data_xml @ensure_ncclient def dispatch_rpc(self, rpc_command=None, source=None, filter=None): """ Execute rpc on the remote device eg. dispatch('get-next') :param rpc_command: specifies rpc command to be dispatched either in plain text or in xml element format (depending on command) :param source: name of the configuration datastore being queried :param filter: specifies the portion of the configuration to retrieve (by default entire configuration is retrieved) :return: Returns xml string containing the rpc-reply response received from remote host """ if rpc_command is None: raise ValueError('rpc_command value must be provided') resp = self.m.dispatch(fromstring(rpc_command), source=source, filter=filter) # just return rpc-reply xml return resp.xml