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

test/units/plugins/httpapi/test_checkpoint.py

@@ -0,0 +1,63 @@
+# (c) 2018 Red Hat Inc.
+# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+
+import json
+
+from ansible.module_utils.six.moves.urllib.error import HTTPError
+from units.compat import mock
+from units.compat import unittest
+from units.compat.builtins import BUILTINS
+from units.compat.mock import mock_open, patch
+
+from ansible.errors import AnsibleConnectionFailure
+from ansible.module_utils.connection import ConnectionError
+from ansible.module_utils.six import BytesIO, StringIO
+from ansible.plugins.httpapi.checkpoint import HttpApi
+
+EXPECTED_BASE_HEADERS = {
+    'Content-Type': 'application/json'
+}
+
+
+class FakeCheckpointHttpApiPlugin(HttpApi):
+    def __init__(self, conn):
+        super(FakeCheckpointHttpApiPlugin, self).__init__(conn)
+
+
+class TestCheckpointHttpApi(unittest.TestCase):
+
+    def setUp(self):
+        self.connection_mock = mock.Mock()
+        self.checkpoint_plugin = FakeCheckpointHttpApiPlugin(self.connection_mock)
+        self.checkpoint_plugin._load_name = 'httpapi'
+
+    def test_login_raises_exception_when_username_and_password_are_not_provided(self):
+        with self.assertRaises(AnsibleConnectionFailure) as res:
+            self.checkpoint_plugin.login(None, None)
+        assert 'Username and password are required' in str(res.exception)
+
+    def test_login_raises_exception_when_invalid_response(self):
+        self.connection_mock.send.return_value = self._connection_response(
+            {'NOSIDKEY': 'NOSIDVALUE'}
+        )
+
+        with self.assertRaises(ConnectionError) as res:
+            self.checkpoint_plugin.login('foo', 'bar')
+
+        assert 'Server returned response without token info during connection authentication' in str(res.exception)
+
+    def test_send_request_should_return_error_info_when_http_error_raises(self):
+        self.connection_mock.send.side_effect = HTTPError('http://testhost.com', 500, '', {},
+                                                          StringIO('{"errorMessage": "ERROR"}'))
+
+        resp = self.checkpoint_plugin.send_request('/test', None)
+
+        assert resp == (500, {'errorMessage': 'ERROR'})
+
+    @staticmethod
+    def _connection_response(response, status=200):
+        response_mock = mock.Mock()
+        response_mock.getcode.return_value = status
+        response_text = json.dumps(response) if type(response) is dict else response
+        response_data = BytesIO(response_text.encode() if response_text else ''.encode())
+        return response_mock, response_data