Checkpoint httpapi plugin (#49929)

* Add checkpoint httpapi plugin and access rule facts module

* WIP checkpoint_access_rule module

* Add publish and install policy, plus fix empty json object request for publish

* Refactor publish and install_policy onto module_utils

* Add update resource logic

* Add checkpoint_host_facts module

* Return code and response on get_acess_rule function

* Add checkpoint_host module

* Add checkpoint_run_script module

* Add checkpoint_task_facts module

* Show all tasks if no task id is passed

Note, this is only available on v1.3 of Checkpoint WS API

* Add update logic to checkpoint host

* Add full details on get task call

* Add checkpoint httpapi plugin

* Fix pep8

* Use auth instead of sid property and return False on handle_httperror method

* Fix version in docstring

* Remove constructor

* Remove Accept from base headers

* Do not override http error handler and assign Checkpoint sid to connection _auth

There is scaffolding in the base class to autoappend the token, given
it is assigned to connection _send

* Use new connection queue message method instead of display

* Remove unused display

* Catch ValueError, since it's a parent of JSONDecodeError

* Make static methods that are not used outside the class regular methods

* Add missing self to previously static methods

* Fix logout

Was carrying copy pasta from ftd plugin

* Remove send_auth_request

* Use BASE_HEADERS constant

* Simplify copyright header on httpapi plugin

* Remove access rule module

* Remove unused imports

* Add unit test

* Fix pep8

* Add test

* Add test

* Fix pep8

lib/ansible/plugins/httpapi/checkpoint.py

@@ -0,0 +1,76 @@
+# (c) 2018 Red Hat Inc.
+# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+
+from __future__ import (absolute_import, division, print_function)
+
+__metaclass__ = type
+
+DOCUMENTATION = """
+---
+author: Ansible Networking Team
+httpapi : checkpoint
+short_description: HttpApi Plugin for Checkpoint devices
+description:
+  - This HttpApi plugin provides methods to connect to Checkpoint
+    devices over a HTTP(S)-based api.
+version_added: "2.8"
+"""
+
+import json
+
+from ansible.module_utils.basic import to_text
+from ansible.errors import AnsibleConnectionFailure
+from ansible.module_utils.six.moves.urllib.error import HTTPError
+from ansible.plugins.httpapi import HttpApiBase
+from ansible.module_utils.connection import ConnectionError
+
+BASE_HEADERS = {
+    'Content-Type': 'application/json',
+}
+
+
+class HttpApi(HttpApiBase):
+    def login(self, username, password):
+        if username and password:
+            payload = {'user': username, 'password': password}
+            url = '/web_api/login'
+            response, response_data = self.send_request(url, payload)
+        else:
+            raise AnsibleConnectionFailure('Username and password are required for login')
+
+        try:
+            self.connection._auth = {'X-chkp-sid': response_data['sid']}
+        except KeyError:
+            raise ConnectionError(
+                'Server returned response without token info during connection authentication: %s' % response)
+
+    def logout(self):
+        url = '/web_api/logout'
+
+        response, dummy = self.send_request(url, None)
+
+    def send_request(self, path, body_params):
+        data = json.dumps(body_params) if body_params else '{}'
+
+        try:
+            self._display_request()
+            response, response_data = self.connection.send(path, data, method='POST', headers=BASE_HEADERS)
+            value = self._get_response_value(response_data)
+
+            return response.getcode(), self._response_to_json(value)
+        except HTTPError as e:
+            error = json.loads(e.read())
+            return e.code, error
+
+    def _display_request(self):
+        self.connection.queue_message('vvvv', 'Web Services: %s %s' % ('POST', self.connection._url))
+
+    def _get_response_value(self, response_data):
+        return to_text(response_data.getvalue())
+
+    def _response_to_json(self, response_text):
+        try:
+            return json.loads(response_text) if response_text else {}
+        # JSONDecodeError only available on Python 3.5+
+        except ValueError:
+            raise ConnectionError('Invalid JSON response: %s' % response_text)