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gns3-server/gns3server/controller/topology.py
2016-06-15 16:26:16 +02:00

69 lines
2.2 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 json
import aiohttp
from ..version import __version__
GNS3_FILE_FORMAT_REVISION = 5
def project_to_topology(project):
"""
:return: A dictionnary with the topology ready to dump to a .gns3
"""
data = {
"project_id": project.id,
"name": project.name,
"topology": {
"nodes": [],
"links": [],
"computes": []
},
"type": "topology",
"revision": GNS3_FILE_FORMAT_REVISION,
"version": __version__
}
computes = set()
for node in project.nodes.values():
computes.add(node.compute)
data["topology"]["nodes"].append(node.__json__(topology_dump=True))
for link in project.links.values():
data["topology"]["links"].append(link.__json__(topology_dump=True))
for compute in computes:
if hasattr(compute, "__json__"):
data["topology"]["computes"].append(compute.__json__(topology_dump=True))
#TODO: check JSON schema
return data
def load_topology(path):
"""
Open a topology file, patch it for last GNS3 release and return it
"""
try:
with open(path) as f:
topo = json.load(f)
except OSError as e:
raise aiohttp.web.HTTPConflict(text="Could not load topology {}: {}".format(path, str(e)))
#TODO: Check JSON schema
if topo["revision"] < GNS3_FILE_FORMAT_REVISION:
raise aiohttp.web.HTTPConflict(text="Old GNS3 project are not yet supported")
return topo