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# Copyright 2015 Open Platform for NFV Project, Inc. and its contributors
# This software is distributed under the terms and conditions of the 'Apache-2.0'
# license which can be found in the file 'LICENSE' in this package distribution
# or at 'http://www.apache.org/licenses/LICENSE-2.0'.
from flask import Flask, jsonify
from flask_restful import Resource, Api
import logging
import requests
import time
from moon_orchestrator import __version__
from moon_orchestrator.api.pods import Pods
from moon_orchestrator.api.slaves import Slaves
from moon_orchestrator.api.generic import Status
from moon_orchestrator.drivers import get_driver
from python_moonutilities import configuration, exceptions
logger = logging.getLogger("moon.orchestrator.http_server")
__API__ = (
Status,
)
class Server:
"""Base class for HTTP server"""
def __init__(self, host="localhost", port=80, api=None, **kwargs):
"""Run a server
:param host: hostname of the server
:param port: port for the running server
:param kwargs: optional parameters
:return: a running server
"""
self._host = host
self._port = port
self._api = api
self._extra = kwargs
@property
def host(self):
return self._host
@host.setter
def host(self, name):
self._host = name
@host.deleter
def host(self):
self._host = ""
@property
def port(self):
return self._port
@port.setter
def port(self, number):
self._port = number
@port.deleter
def port(self):
self._port = 80
def run(self):
raise NotImplementedError()
class Root(Resource):
"""
The root of the web service
"""
__urls__ = ("/",)
__methods = ("get", "post", "put", "delete", "options")
def get(self):
tree = {"/": {"methods": ("get",), "description": "List all methods for that service."}}
for item in __API__:
tree[item.__name__] = {"urls": item.__urls__}
_methods = []
for _method in self.__methods:
if _method in dir(item):
_methods.append(_method)
tree[item.__name__]["methods"] = _methods
tree[item.__name__]["description"] = item.__doc__.strip()
return {
"version": __version__,
"tree": tree
}
class HTTPServer(Server):
def __init__(self, host="localhost", port=80, **kwargs):
super(HTTPServer, self).__init__(host=host, port=port, **kwargs)
self.app = Flask(__name__)
conf = configuration.get_configuration("components/orchestrator")
self.orchestrator_hostname = conf["components/orchestrator"].get("hostname", "orchestrator")
self.orchestrator_port = conf["components/orchestrator"].get("port", 80)
conf = configuration.get_configuration("components/manager")
self.manager_hostname = conf["components/manager"].get("hostname", "manager")
self.manager_port = conf["components/manager"].get("port", 80)
# TODO : specify only few urls instead of *
# CORS(self.app)
self.api = Api(self.app)
self.driver = get_driver()
logger.info("Driver = {}".format(self.driver.__class__))
self.__set_route()
self.__hook_errors()
pdp = None
while True:
try:
pdp = requests.get(
"http://{}:{}/pdp".format(self.manager_hostname,
self.manager_port))
except requests.exceptions.ConnectionError:
logger.warning("Manager is not ready, standby...")
time.sleep(1)
except KeyError:
logger.warning("Manager is not ready, standby...")
time.sleep(1)
else:
if "pdps" in pdp.json():
break
logger.debug("pdp={}".format(pdp))
# self.driver.create_wrappers()
for _pdp_key, _pdp_value in pdp.json()['pdps'].items():
if _pdp_value.get('keystone_project_id'):
# TODO: select context to add security function
self.driver.create_pipeline(
keystone_project_id=_pdp_value.get('keystone_project_id'),
pdp_id=_pdp_key,
policy_ids=_pdp_value.get('security_pipeline', []))
def __hook_errors(self):
def get_404_json(e):
return jsonify({"result": False, "code": 404, "description": str(e)}), 404
self.app.register_error_handler(404, get_404_json)
def get_400_json(e):
return jsonify({"result": False, "code": 400, "description": str(e)}), 400
self.app.register_error_handler(400, lambda e: get_400_json)
self.app.register_error_handler(403, exceptions.AuthException)
def __set_route(self):
self.api.add_resource(Root, '/')
for api in __API__:
self.api.add_resource(api, *api.__urls__)
self.api.add_resource(Pods, *Pods.__urls__,
resource_class_kwargs={
"driver": self.driver
})
self.api.add_resource(Slaves, *Slaves.__urls__,
resource_class_kwargs={
"driver": self.driver
})
def run(self):
self.app.run(host=self._host, port=self._port, threaded=True) # nosec
@staticmethod
def __filter_str(data):
return data.replace("@", "-")
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