mirror of
https://github.com/GNS3/gns3-server
synced 2024-12-26 16:58:28 +00:00
127 lines
3.9 KiB
Python
127 lines
3.9 KiB
Python
#!/usr/bin/env python
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#
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# Copyright (C) 2016 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 asyncio
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import aiohttp
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from ..config import Config
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from .project import Project
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from .compute import Compute
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class Controller:
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"""The controller manage multiple gns3 computes"""
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def __init__(self):
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self._computes = {}
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self._projects = {}
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def isEnabled(self):
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"""
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:returns: True if current instance is the controller
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of our GNS3 infrastructure.
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"""
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return Config.instance().get_section_config("Server").getboolean("controller")
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@asyncio.coroutine
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def addCompute(self, compute_id, **kwargs):
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"""
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Add a server to the dictionnary of computes controlled by GNS3
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:param kwargs: See the documentation of Compute
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"""
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if compute_id not in self._computes:
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compute = Compute(compute_id=compute_id, controller=self, **kwargs)
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self._computes[compute_id] = compute
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return self._computes[compute_id]
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@property
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def computes(self):
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"""
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:returns: The dictionnary of computes managed by GNS3
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"""
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return self._computes
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def getCompute(self, compute_id):
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"""
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Return an compute or raise a 404
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"""
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try:
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return self._computes[compute_id]
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except KeyError:
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raise aiohttp.web.HTTPNotFound(text="Compute ID {} doesn't exist".format(compute_id))
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@asyncio.coroutine
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def addProject(self, project_id=None, **kwargs):
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"""
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Create a project or return an existing project
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:param kwargs: See the documentation of Project
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"""
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if project_id not in self._projects:
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project = Project(project_id=project_id, **kwargs)
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self._projects[project.id] = project
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for compute in self._computes.values():
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yield from project.addCompute(compute)
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return self._projects[project.id]
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return self._projects[project_id]
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def getProject(self, project_id):
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"""
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Return a project or raise a 404
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"""
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try:
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return self._projects[project_id]
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except KeyError:
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raise aiohttp.web.HTTPNotFound(text="Project ID {} doesn't exist".format(project_id))
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def removeProject(self, project):
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del self._projects[project.id]
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@property
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def projects(self):
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"""
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:returns: The dictionnary of computes managed by GNS3
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"""
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return self._projects
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@staticmethod
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def instance():
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"""
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Singleton to return only on instance of Controller.
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:returns: instance of Controller
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"""
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if not hasattr(Controller, '_instance') or Controller._instance is None:
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Controller._instance = Controller()
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return Controller._instance
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def emit(self, action, event, **kwargs):
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"""
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Send a notification to clients scoped by projects
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"""
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if "project_id" in kwargs:
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try:
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project_id = kwargs.pop("project_id")
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self._projects[project_id].emit(action, event, **kwargs)
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except KeyError:
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pass
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else:
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for project in self._projects.values():
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project.emit(action, event, **kwargs)
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