Lenovo cnos user module (#53763)

* Adding cnos_user module to Ansible

* Update cnos_user.py

* Adding Functional test cases and unit test cases.

* Fixing Bug found in testing with Lenovo Mars.

* Review comments incorporated

* Review comments implemented.

* Copy paste mistake

lib/ansible/modules/network/cnos/cnos_logging.py

@@ -289,7 +289,7 @@ def map_config_to_obj(module):
             obj.append({'dest': logs[1], 'level': logs[2]})
         elif logs[1] == 'logfile':
             level = '5'
-            if logs[3] is not None:
+            if index > 3 and logs[3].isdigit():
                 level = logs[3]
             size = '10485760'
             if len(logs) > 4:
@@ -299,7 +299,7 @@ def map_config_to_obj(module):
             level = '5'
             facility = None
 
-            if logs[3].isdigit():
+            if index > 3 and logs[3].isdigit():
                 level = logs[3]
             if index > 3 and logs[3] == 'facility':
                 facility = logs[4]

lib/ansible/modules/network/cnos/cnos_user.py

@@ -0,0 +1,391 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+from __future__ import (absolute_import, division, print_function)
+__metaclass__ = type
+#
+# Copyright (C) 2019 Lenovo.
+# (c) 2017, Ansible by 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/>.
+#
+# Module to work on management of local users on Lenovo CNOS Switches
+# Lenovo Networking
+#
+ANSIBLE_METADATA = {'metadata_version': '1.1',
+                    'status': ['preview'],
+                    'supported_by': 'community'}
+
+DOCUMENTATION = """
+---
+module: cnos_user
+version_added: "2.8"
+author: "Anil Kumar Muraleedharan (@amuraleedhar)"
+short_description: Manage the collection of local users on Lenovo CNOS devices
+description:
+  - This module provides declarative management of the local usernames
+    configured on Lenovo CNOS devices.  It allows playbooks to manage
+    either individual usernames or the collection of usernames in the
+    current running config.  It also supports purging usernames from the
+    configuration that are not explicitly defined.
+options:
+  aggregate:
+    description:
+      - The set of username objects to be configured on the remote
+        Lenovo CNOS device.  The list entries can either be the username
+        or a hash of username and properties.  This argument is mutually
+        exclusive with the C(name) argument.
+    aliases: ['users', 'collection']
+  name:
+    description:
+      - The username to be configured on the remote Lenovo CNOS
+        device.  This argument accepts a string value and is mutually
+        exclusive with the C(aggregate) argument.
+  configured_password:
+    description:
+      - The password to be configured on the network device. The
+        password needs to be provided in cleartext and it will be encrypted
+        on the device.
+        Please note that this option is not same as C(provider password).
+  update_password:
+    description:
+      - Since passwords are encrypted in the device running config, this
+        argument will instruct the module when to change the password.  When
+        set to C(always), the password will always be updated in the device
+        and when set to C(on_create) the password will be updated only if
+        the username is created.
+    default: always
+    choices: ['on_create', 'always']
+  role:
+    description:
+      - The C(role) argument configures the role for the username in the
+        device running configuration.  The argument accepts a string value
+        defining the role name.  This argument does not check if the role
+        has been configured on the device.
+    aliases: ['roles']
+  sshkey:
+    description:
+      - The C(sshkey) argument defines the SSH public key to configure
+        for the username.  This argument accepts a valid SSH key value.
+  purge:
+    description:
+      - The C(purge) argument instructs the module to consider the
+        resource definition absolute.  It will remove any previously
+        configured usernames on the device with the exception of the
+        `admin` user which cannot be deleted per cnos constraints.
+    type: bool
+    default: 'no'
+  state:
+    description:
+      - The C(state) argument configures the state of the username definition
+        as it relates to the device operational configuration.  When set
+        to I(present), the username(s) should be configured in the device active
+        configuration and when set to I(absent) the username(s) should not be
+        in the device active configuration
+    default: present
+    choices: ['present', 'absent']
+"""
+
+EXAMPLES = """
+- name: create a new user
+  cnos_user:
+    name: ansible
+    sshkey: "{{ lookup('file', '~/.ssh/id_rsa.pub') }}"
+    state: present
+
+- name: remove all users except admin
+  cnos_user:
+    purge: yes
+
+- name: set multiple users role
+  aggregate:
+    - name: netop
+    - name: netend
+  role: network-operator
+  state: present
+"""
+
+RETURN = """
+commands:
+  description: The list of configuration mode commands to send to the device
+  returned: always
+  type: list
+  sample:
+    - name ansible
+    - name ansible password password
+start:
+  description: The time the job started
+  returned: always
+  type: str
+  sample: "2016-11-16 10:38:15.126146"
+end:
+  description: The time the job ended
+  returned: always
+  type: str
+  sample: "2016-11-16 10:38:25.595612"
+delta:
+  description: The time elapsed to perform all operations
+  returned: always
+  type: str
+  sample: "0:00:10.469466"
+"""
+import re
+
+from copy import deepcopy
+from functools import partial
+
+from ansible.module_utils.network.cnos.cnos import run_commands, load_config
+from ansible.module_utils.network.cnos.cnos import get_config
+from ansible.module_utils.network.cnos.cnos import cnos_argument_spec
+from ansible.module_utils.basic import AnsibleModule
+from ansible.module_utils.six import string_types, iteritems
+from ansible.module_utils.network.common.utils import to_list
+from ansible.module_utils.network.common.utils import remove_default_spec
+from ansible.module_utils.network.cnos.cnos import get_user_roles
+
+
+def validate_roles(value, module):
+    for item in value:
+        if item not in get_user_roles():
+            module.fail_json(msg='invalid role specified')
+
+
+def map_obj_to_commands(updates, module):
+    commands = list()
+    state = module.params['state']
+    update_password = module.params['update_password']
+
+    for update in updates:
+        want, have = update
+
+        def needs_update(x):
+            return want.get(x) and (want.get(x) != have.get(x))
+
+        def add(x):
+            return commands.append('username %s %s' % (want['name'], x))
+
+        def remove(x):
+            return commands.append('no username %s %s' % (want['name'], x))
+
+        if want['state'] == 'absent':
+            commands.append('no username %s' % want['name'])
+            continue
+
+        if want['state'] == 'present' and not have:
+            commands.append('username %s' % want['name'])
+
+        if needs_update('configured_password'):
+            if update_password == 'always' or not have:
+                add('password %s' % want['configured_password'])
+
+        if needs_update('sshkey'):
+            add('sshkey %s' % want['sshkey'])
+
+        if want['roles']:
+            if have:
+                for item in set(have['roles']).difference(want['roles']):
+                    remove('role %s' % item)
+
+                for item in set(want['roles']).difference(have['roles']):
+                    add('role %s' % item)
+            else:
+                for item in want['roles']:
+                    add('role %s' % item)
+
+    return commands
+
+
+def parse_password(data):
+    if 'no password set' in data:
+        return None
+    return '<PASSWORD>'
+
+
+def parse_roles(data):
+    roles = list()
+    if 'role:' in data:
+        items = data.split()
+        my_item = items[items.index('role:') + 1]
+        roles.append(my_item)
+    return roles
+
+
+def parse_username(data):
+    name = data.split(' ', 1)[0]
+    username = name[1:]
+    return username
+
+
+def parse_sshkey(data):
+    key = None
+    if 'sskkey:' in data:
+        items = data.split()
+        key = items[items.index('sshkey:') + 1]
+    return key
+
+
+def map_config_to_obj(module):
+    out = run_commands(module, ['show user-account'])
+    data = out[0]
+    objects = list()
+    datum = data.split('User')
+
+    for item in datum:
+        objects.append({
+            'name': parse_username(item),
+            'configured_password': parse_password(item),
+            'sshkey': parse_sshkey(item),
+            'roles': parse_roles(item),
+            'state': 'present'
+        })
+    return objects
+
+
+def get_param_value(key, item, module):
+    # if key doesn't exist in the item, get it from module.params
+    if not item.get(key):
+        value = module.params[key]
+
+    # if key does exist, do a type check on it to validate it
+    else:
+        value_type = module.argument_spec[key].get('type', 'str')
+        type_checker = module._CHECK_ARGUMENT_TYPES_DISPATCHER[value_type]
+        type_checker(item[key])
+        value = item[key]
+
+    return value
+
+
+def map_params_to_obj(module):
+    aggregate = module.params['aggregate']
+    if not aggregate:
+        if not module.params['name'] and module.params['purge']:
+            return list()
+        elif not module.params['name']:
+            module.fail_json(msg='username is required')
+        else:
+            collection = [{'name': module.params['name']}]
+    else:
+        collection = list()
+        for item in aggregate:
+            if not isinstance(item, dict):
+                collection.append({'name': item})
+            elif 'name' not in item:
+                module.fail_json(msg='name is required')
+            else:
+                collection.append(item)
+
+    objects = list()
+
+    for item in collection:
+        get_value = partial(get_param_value, item=item, module=module)
+        item.update({
+            'configured_password': get_value('configured_password'),
+            'sshkey': get_value('sshkey'),
+            'roles': get_value('roles'),
+            'state': get_value('state')
+        })
+
+        for key, value in iteritems(item):
+            if value:
+                # validate the param value (if validator func exists)
+                validator = globals().get('validate_%s' % key)
+                if all((value, validator)):
+                    validator(value, module)
+
+        objects.append(item)
+
+    return objects
+
+
+def update_objects(want, have):
+    updates = list()
+    for entry in want:
+        item = next((i for i in have if i['name'] == entry['name']), None)
+        if all((item is None, entry['state'] == 'present')):
+            updates.append((entry, {}))
+        elif item:
+            for key, value in iteritems(entry):
+                if value and value != item[key]:
+                    updates.append((entry, item))
+    return updates
+
+
+def main():
+    """ main entry point for module execution
+    """
+    element_spec = dict(
+        name=dict(),
+        configured_password=dict(no_log=True),
+        update_password=dict(default='always', choices=['on_create', 'always']),
+        roles=dict(type='list', aliases=['role']),
+        sshkey=dict(),
+        state=dict(default='present', choices=['present', 'absent'])
+    )
+
+    aggregate_spec = deepcopy(element_spec)
+
+    # remove default in aggregate spec, to handle common arguments
+    remove_default_spec(aggregate_spec)
+
+    argument_spec = dict(
+        aggregate=dict(type='list', elements='dict',
+                       options=aggregate_spec, aliases=['collection', 'users']),
+        purge=dict(type='bool', default=False)
+    )
+
+    argument_spec.update(element_spec)
+
+    mutually_exclusive = [('name', 'aggregate')]
+
+    module = AnsibleModule(argument_spec=argument_spec,
+                           mutually_exclusive=mutually_exclusive,
+                           supports_check_mode=True)
+
+    warnings = list()
+
+    result = {'changed': False}
+    result['warnings'] = warnings
+
+    want = map_params_to_obj(module)
+    have = map_config_to_obj(module)
+
+    commands = map_obj_to_commands(update_objects(want, have), module)
+
+    if module.params['purge']:
+        want_users = [x['name'] for x in want]
+        have_users = [x['name'] for x in have]
+        for item in set(have_users).difference(want_users):
+            if item != 'admin':
+                if not item.strip():
+                    continue
+                item = item.replace("\\", "\\\\")
+                commands.append('no username %s' % item)
+
+    result['commands'] = commands
+
+    # the cnos cli prevents this by rule but still
+    if 'no username admin' in commands:
+        module.fail_json(msg='Cannot delete the `admin` account')
+
+    if commands:
+        if not module.check_mode:
+            load_config(module, commands)
+        result['changed'] = True
+
+    module.exit_json(**result)
+
+
+if __name__ == '__main__':
+    main()