mirror of
https://github.com/GNS3/gns3-server
synced 2024-11-15 21:08:55 +00:00
108 lines
3.1 KiB
Python
108 lines
3.1 KiB
Python
# -*- coding: utf-8 -*-
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#
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# Copyright (C) 2015 GNS3 Technologies Inc.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import aiohttp
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import os
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import tempfile
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import shutil
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from uuid import UUID, uuid4
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class Project:
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"""
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A project contains a list of VM.
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In theory VM are isolated project/project.
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:param uuid: Force project uuid (None by default auto generate an UUID)
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:param location: Parent path of the project. (None should create a tmp directory)
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"""
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def __init__(self, uuid=None, location=None):
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if uuid is None:
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self._uuid = str(uuid4())
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else:
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try:
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UUID(uuid, version=4)
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except ValueError:
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raise aiohttp.web.HTTPBadRequest(text="{} is not a valid UUID".format(uuid))
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self._uuid = uuid
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self._location = location
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if location is None:
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self._location = tempfile.mkdtemp()
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self._vms_to_destroy = set()
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self._path = os.path.join(self._location, self._uuid)
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try:
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os.makedirs(os.path.join(self._path, "vms"), exist_ok=True)
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except OSError as e:
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raise aiohttp.web.HTTPInternalServerError(text="Could not create project directory: {}".format(e))
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@property
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def uuid(self):
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return self._uuid
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@property
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def location(self):
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return self._location
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@property
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def path(self):
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return self._path
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def vm_working_directory(self, vm):
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"""
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Return a working directory for a specific VM.
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If the directory doesn't exist, the directory is created.
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:param vm: An instance of VM
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:returns: A string with a VM working directory
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"""
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workdir = os.path.join(self._path, vm.manager.module_name.lower(), vm.uuid)
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try:
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os.makedirs(workdir, exist_ok=True)
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except OSError as e:
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raise aiohttp.web.HTTPInternalServerError(text="Could not create VM working directory: {}".format(e))
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return workdir
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def mark_vm_for_destruction(self, vm):
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"""
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:param vm: An instance of VM
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"""
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self._vms_to_destroy.add(vm)
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def __json__(self):
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return {
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"uuid": self._uuid,
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"location": self._location
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}
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def commit(self):
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"""Write project changes on disk"""
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while self._vms_to_destroy:
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vm = self._vms_to_destroy.pop()
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directory = self.vm_working_directory(vm)
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if os.path.exists(directory):
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shutil.rmtree(directory)
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