gns3-server/gns3server/controller/hypervisor.py
2016-03-11 15:06:14 +01:00

102 lines
3.3 KiB
Python

#!/usr/bin/env python
#
# Copyright (C) 2016 GNS3 Technologies Inc.
#
# This program 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.
#
# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
import aiohttp
import asyncio
import json
from ..controller.controller_error import ControllerError
from ..config import Config
from ..version import __version__
import logging
log = logging.getLogger(__name__)
class HypervisorError(ControllerError):
pass
class Hypervisor:
"""
A GNS3 hypervisor.
"""
def __init__(self, hypervisor_id, protocol="http", host="localhost", port=8000, user=None, password=None):
log.info("Create hypervisor %s", hypervisor_id)
self._id = hypervisor_id
self._protocol = protocol
self._host = host
self._port = port
self._user = user
self._password = password
self._connected = False
# The remote hypervisor version
# TODO: For the moment it's fake we return the controller version
self._version = __version__
# If the hypervisor is local but the hypervisor id is local
# it's a configuration issue
if hypervisor_id == "local" and Config.instance().get_section_config("Server")["local"] is False:
raise HypervisorError("The local hypervisor is started without --local")
@property
def id(self):
"""
:returns: Hypervisor identifier (string)
"""
return self._id
@property
def host(self):
"""
:returns: Hypervisor host (string)
"""
return self._host
def __json__(self):
return {
"hypervisor_id": self._id,
"protocol": self._protocol,
"host": self._host,
"port": self._port,
"user": self._user,
"connected": self._connected,
"version": self._version
}
@asyncio.coroutine
def httpQuery(self, method, path, data=None):
with aiohttp.Timeout(10):
with aiohttp.ClientSession() as session:
url = "{}://{}:{}/v2/hypervisor{}".format(self._protocol, self._host, self._port, path)
headers = {'content-type': 'application/json'}
if hasattr(data, '__json__'):
data = data.__json__()
data = json.dumps(data)
response = yield from session.request(method, url, headers=headers, data=data)
body = yield from response.read()
if response.status >= 300:
raise aiohttp.errors.HttpProcessingError(code=response.status, message=body)
yield from response.release()
return body
@asyncio.coroutine
def post(self, path, data={}):
yield from self.httpQuery("POST", path, data)