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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, request
from flask_cors import CORS, cross_origin
from flask_restful import Resource, Api, reqparse
import logging
from moon_consul import __version__
from moon_consul.api.generic import API
from moon_consul.api.database import Database
from moon_consul.api.messenger import Messenger
from moon_consul.api.openstack import Keystone
from moon_consul.api.slave import Slave
from moon_consul.api.system import Docker, Components
from moon_utilities import exceptions
logger = logging.getLogger(__name__)
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()
__API__ = (
API,
Database, Docker, Messenger, Keystone, Slave, Components
)
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, conf=None, **kwargs):
super(HTTPServer, self).__init__(host=host, port=port, **kwargs)
self.app = Flask(__name__)
self.conf = conf
# Todo : specify only few urls instead of *
# CORS(self.app)
self.api = Api(self.app)
self.__set_route()
# self.__hook_errors()
@self.app.errorhandler(exceptions.AuthException)
def _auth_exception(error):
return {"error": "Unauthorized"}, 401
def __hook_errors(self):
# FIXME (dthom): it doesn't work
def get_404_json(e):
return {"error": "Error", "code": 404, "description": e}
self.app.register_error_handler(404, get_404_json)
def get_400_json(e):
return {"error": "Error", "code": 400, "description": e}
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__,
resource_class_kwargs={
"conf": self.conf,
}
)
def run(self):
self.app.run(debug=True, host=self._host, port=self._port) # nosec
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