mirror of
https://github.com/GNS3/gns3-server
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780 lines
25 KiB
Python
780 lines
25 KiB
Python
# -*- coding: utf-8 -*-
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#
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# Copyright (C) 2014 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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"""
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VirtualBox server module.
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"""
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import sys
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import os
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import socket
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import shutil
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import subprocess
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from gns3server.modules import IModule
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from gns3server.config import Config
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from .virtualbox_vm import VirtualBoxVM
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from .virtualbox_error import VirtualBoxError
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from .nios.nio_udp import NIO_UDP
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from ..attic import find_unused_port
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from .schemas import VBOX_CREATE_SCHEMA
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from .schemas import VBOX_DELETE_SCHEMA
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from .schemas import VBOX_UPDATE_SCHEMA
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from .schemas import VBOX_START_SCHEMA
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from .schemas import VBOX_STOP_SCHEMA
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from .schemas import VBOX_SUSPEND_SCHEMA
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from .schemas import VBOX_RELOAD_SCHEMA
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from .schemas import VBOX_ALLOCATE_UDP_PORT_SCHEMA
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from .schemas import VBOX_ADD_NIO_SCHEMA
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from .schemas import VBOX_DELETE_NIO_SCHEMA
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from .schemas import VBOX_START_CAPTURE_SCHEMA
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from .schemas import VBOX_STOP_CAPTURE_SCHEMA
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import logging
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log = logging.getLogger(__name__)
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class VirtualBox(IModule):
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"""
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VirtualBox module.
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:param name: module name
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:param args: arguments for the module
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:param kwargs: named arguments for the module
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"""
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def __init__(self, name, *args, **kwargs):
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# get the vboxmanage location
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self._vboxmanage_path = None
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if sys.platform.startswith("win") and "VBOX_INSTALL_PATH" in os.environ:
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self._vboxmanage_path = os.path.join(os.environ["VBOX_INSTALL_PATH"], "VBoxManage.exe")
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else:
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config = Config.instance()
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vbox_config = config.get_section_config(name.upper())
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self._vboxmanage_path = vbox_config.get("vboxmanage_path")
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if not self._vboxmanage_path or not os.path.isfile(self._vboxmanage_path):
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paths = [os.getcwd()] + os.environ["PATH"].split(os.pathsep)
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# look for vboxmanage in the current working directory and $PATH
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for path in paths:
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try:
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if "vboxmanage" in [s.lower() for s in os.listdir(path)] and os.access(os.path.join(path, "vboxmanage"), os.X_OK):
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self._vboxmanage_path = os.path.join(path, "vboxmanage")
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break
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except OSError:
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continue
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if not self._vboxmanage_path:
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log.warning("vboxmanage couldn't be found!")
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elif not os.access(self._vboxmanage_path, os.X_OK):
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log.warning("vboxmanage is not executable")
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# a new process start when calling IModule
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IModule.__init__(self, name, *args, **kwargs)
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self._vbox_instances = {}
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config = Config.instance()
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vbox_config = config.get_section_config(name.upper())
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self._console_start_port_range = vbox_config.get("console_start_port_range", 3501)
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self._console_end_port_range = vbox_config.get("console_end_port_range", 4000)
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self._allocated_udp_ports = []
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self._udp_start_port_range = vbox_config.get("udp_start_port_range", 35001)
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self._udp_end_port_range = vbox_config.get("udp_end_port_range", 35500)
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self._host = vbox_config.get("host", kwargs["host"])
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self._console_host = vbox_config.get("console_host", kwargs["console_host"])
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self._projects_dir = kwargs["projects_dir"]
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self._tempdir = kwargs["temp_dir"]
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self._working_dir = self._projects_dir
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def stop(self, signum=None):
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"""
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Properly stops the module.
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:param signum: signal number (if called by the signal handler)
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"""
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# delete all VirtualBox instances
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for vbox_id in self._vbox_instances:
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vbox_instance = self._vbox_instances[vbox_id]
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try:
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vbox_instance.delete()
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except VirtualBoxError:
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continue
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IModule.stop(self, signum) # this will stop the I/O loop
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def get_vbox_instance(self, vbox_id):
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"""
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Returns a VirtualBox VM instance.
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:param vbox_id: VirtualBox VM identifier
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:returns: VirtualBoxVM instance
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"""
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if vbox_id not in self._vbox_instances:
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log.debug("VirtualBox VM ID {} doesn't exist".format(vbox_id), exc_info=1)
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self.send_custom_error("VirtualBox VM ID {} doesn't exist".format(vbox_id))
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return None
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return self._vbox_instances[vbox_id]
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@IModule.route("virtualbox.reset")
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def reset(self, request):
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"""
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Resets the module.
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:param request: JSON request
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"""
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# delete all VirtualBox instances
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for vbox_id in self._vbox_instances:
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vbox_instance = self._vbox_instances[vbox_id]
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vbox_instance.delete()
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# resets the instance IDs
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VirtualBoxVM.reset()
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self._vbox_instances.clear()
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self._allocated_udp_ports.clear()
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self._working_dir = self._projects_dir
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log.info("VirtualBox module has been reset")
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@IModule.route("virtualbox.settings")
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def settings(self, request):
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"""
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Set or update settings.
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Optional request parameters:
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- working_dir (path to a working directory)
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- vboxmanage_path (path to vboxmanage)
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- project_name
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- console_start_port_range
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- console_end_port_range
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- udp_start_port_range
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- udp_end_port_range
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:param request: JSON request
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"""
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if request is None:
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self.send_param_error()
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return
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if "working_dir" in request:
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new_working_dir = request["working_dir"]
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log.info("this server is local with working directory path to {}".format(new_working_dir))
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else:
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new_working_dir = os.path.join(self._projects_dir, request["project_name"])
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log.info("this server is remote with working directory path to {}".format(new_working_dir))
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if self._projects_dir != self._working_dir != new_working_dir:
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if not os.path.isdir(new_working_dir):
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try:
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shutil.move(self._working_dir, new_working_dir)
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except OSError as e:
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log.error("could not move working directory from {} to {}: {}".format(self._working_dir,
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new_working_dir,
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e))
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return
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# update the working directory if it has changed
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if self._working_dir != new_working_dir:
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self._working_dir = new_working_dir
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for vbox_id in self._vbox_instances:
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vbox_instance = self._vbox_instances[vbox_id]
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vbox_instance.working_dir = os.path.join(self._working_dir, "vbox", "{}".format(vbox_instance.name))
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if "vboxmanage_path" in request:
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self._vboxmanage_path = request["vboxmanage_path"]
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if "console_start_port_range" in request and "console_end_port_range" in request:
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self._console_start_port_range = request["console_start_port_range"]
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self._console_end_port_range = request["console_end_port_range"]
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if "udp_start_port_range" in request and "udp_end_port_range" in request:
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self._udp_start_port_range = request["udp_start_port_range"]
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self._udp_end_port_range = request["udp_end_port_range"]
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log.debug("received request {}".format(request))
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@IModule.route("virtualbox.create")
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def vbox_create(self, request):
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"""
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Creates a new VirtualBox VM instance.
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Mandatory request parameters:
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- name (VirtualBox VM name)
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- vmname (VirtualBox VM name in VirtualBox)
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- linked_clone (Flag to create a linked clone)
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Optional request parameters:
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- console (VirtualBox VM console port)
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Response parameters:
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- id (VirtualBox VM instance identifier)
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- name (VirtualBox VM name)
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- default settings
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:param request: JSON request
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"""
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# validate the request
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if not self.validate_request(request, VBOX_CREATE_SCHEMA):
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return
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name = request["name"]
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vmname = request["vmname"]
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linked_clone = request["linked_clone"]
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console = request.get("console")
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vbox_id = request.get("vbox_id")
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try:
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if not self._vboxmanage_path or not os.path.exists(self._vboxmanage_path):
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raise VirtualBoxError("Could not find VBoxManage, is VirtualBox correctly installed?")
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vbox_instance = VirtualBoxVM(self._vboxmanage_path,
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name,
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vmname,
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linked_clone,
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self._working_dir,
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vbox_id,
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console,
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self._console_host,
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self._console_start_port_range,
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self._console_end_port_range)
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except VirtualBoxError as e:
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self.send_custom_error(str(e))
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return
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response = {"name": vbox_instance.name,
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"id": vbox_instance.id}
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defaults = vbox_instance.defaults()
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response.update(defaults)
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self._vbox_instances[vbox_instance.id] = vbox_instance
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self.send_response(response)
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@IModule.route("virtualbox.delete")
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def vbox_delete(self, request):
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"""
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Deletes a VirtualBox VM instance.
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Mandatory request parameters:
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- id (VirtualBox VM instance identifier)
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Response parameter:
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- True on success
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:param request: JSON request
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"""
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# validate the request
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if not self.validate_request(request, VBOX_DELETE_SCHEMA):
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return
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# get the instance
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vbox_instance = self.get_vbox_instance(request["id"])
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if not vbox_instance:
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return
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try:
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vbox_instance.clean_delete()
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del self._vbox_instances[request["id"]]
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except VirtualBoxError as e:
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self.send_custom_error(str(e))
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return
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self.send_response(True)
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@IModule.route("virtualbox.update")
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def vbox_update(self, request):
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"""
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Updates a VirtualBox VM instance
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Mandatory request parameters:
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- id (VirtualBox VM instance identifier)
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Optional request parameters:
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- any setting to update
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Response parameters:
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- updated settings
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:param request: JSON request
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"""
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# validate the request
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if not self.validate_request(request, VBOX_UPDATE_SCHEMA):
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return
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# get the instance
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vbox_instance = self.get_vbox_instance(request["id"])
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if not vbox_instance:
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return
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# update the VirtualBox VM settings
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response = {}
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for name, value in request.items():
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if hasattr(vbox_instance, name) and getattr(vbox_instance, name) != value:
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try:
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setattr(vbox_instance, name, value)
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response[name] = value
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except VirtualBoxError as e:
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self.send_custom_error(str(e))
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return
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self.send_response(response)
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@IModule.route("virtualbox.start")
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def vbox_start(self, request):
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"""
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Starts a VirtualBox VM instance.
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Mandatory request parameters:
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- id (VirtualBox VM instance identifier)
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Response parameters:
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- True on success
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:param request: JSON request
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"""
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# validate the request
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if not self.validate_request(request, VBOX_START_SCHEMA):
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return
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# get the instance
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vbox_instance = self.get_vbox_instance(request["id"])
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if not vbox_instance:
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return
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try:
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vbox_instance.start()
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except VirtualBoxError as e:
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self.send_custom_error(str(e))
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return
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self.send_response(True)
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@IModule.route("virtualbox.stop")
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def vbox_stop(self, request):
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"""
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Stops a VirtualBox VM instance.
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Mandatory request parameters:
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- id (VirtualBox VM instance identifier)
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Response parameters:
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- True on success
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:param request: JSON request
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"""
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# validate the request
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if not self.validate_request(request, VBOX_STOP_SCHEMA):
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return
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# get the instance
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vbox_instance = self.get_vbox_instance(request["id"])
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if not vbox_instance:
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return
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try:
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vbox_instance.stop()
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except VirtualBoxError as e:
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self.send_custom_error(str(e))
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return
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self.send_response(True)
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@IModule.route("virtualbox.reload")
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def vbox_reload(self, request):
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"""
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Reloads a VirtualBox VM instance.
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Mandatory request parameters:
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- id (VirtualBox VM identifier)
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Response parameters:
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- True on success
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:param request: JSON request
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"""
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# validate the request
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if not self.validate_request(request, VBOX_RELOAD_SCHEMA):
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return
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# get the instance
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vbox_instance = self.get_vbox_instance(request["id"])
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if not vbox_instance:
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return
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try:
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vbox_instance.reload()
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except VirtualBoxError as e:
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self.send_custom_error(str(e))
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return
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self.send_response(True)
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@IModule.route("virtualbox.stop")
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def vbox_stop(self, request):
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"""
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Stops a VirtualBox VM instance.
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Mandatory request parameters:
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- id (VirtualBox VM instance identifier)
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Response parameters:
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- True on success
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:param request: JSON request
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"""
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# validate the request
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if not self.validate_request(request, VBOX_STOP_SCHEMA):
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return
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# get the instance
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vbox_instance = self.get_vbox_instance(request["id"])
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if not vbox_instance:
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return
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try:
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vbox_instance.stop()
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except VirtualBoxError as e:
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self.send_custom_error(str(e))
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return
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self.send_response(True)
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@IModule.route("virtualbox.suspend")
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def vbox_suspend(self, request):
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"""
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Suspends a VirtualBox VM instance.
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Mandatory request parameters:
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- id (VirtualBox VM instance identifier)
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Response parameters:
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- True on success
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:param request: JSON request
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"""
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# validate the request
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if not self.validate_request(request, VBOX_SUSPEND_SCHEMA):
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return
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# get the instance
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vbox_instance = self.get_vbox_instance(request["id"])
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if not vbox_instance:
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return
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try:
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vbox_instance.suspend()
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except VirtualBoxError as e:
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self.send_custom_error(str(e))
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return
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self.send_response(True)
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@IModule.route("virtualbox.allocate_udp_port")
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def allocate_udp_port(self, request):
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"""
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Allocates a UDP port in order to create an UDP NIO.
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Mandatory request parameters:
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- id (VirtualBox VM identifier)
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- port_id (unique port identifier)
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Response parameters:
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- port_id (unique port identifier)
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- lport (allocated local port)
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:param request: JSON request
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"""
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# validate the request
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if not self.validate_request(request, VBOX_ALLOCATE_UDP_PORT_SCHEMA):
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return
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# get the instance
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vbox_instance = self.get_vbox_instance(request["id"])
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if not vbox_instance:
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return
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try:
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port = find_unused_port(self._udp_start_port_range,
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self._udp_end_port_range,
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host=self._host,
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socket_type="UDP",
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ignore_ports=self._allocated_udp_ports)
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except Exception as e:
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self.send_custom_error(str(e))
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return
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self._allocated_udp_ports.append(port)
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log.info("{} [id={}] has allocated UDP port {} with host {}".format(vbox_instance.name,
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vbox_instance.id,
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port,
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self._host))
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response = {"lport": port,
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"port_id": request["port_id"]}
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self.send_response(response)
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@IModule.route("virtualbox.add_nio")
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def add_nio(self, request):
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"""
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Adds an NIO (Network Input/Output) for a VirtualBox VM instance.
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Mandatory request parameters:
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- id (VirtualBox VM instance identifier)
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- port (port number)
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- port_id (unique port identifier)
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- nio (one of the following)
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- type "nio_udp"
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- lport (local port)
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- rhost (remote host)
|
|
- rport (remote port)
|
|
|
|
Response parameters:
|
|
- port_id (unique port identifier)
|
|
|
|
:param request: JSON request
|
|
"""
|
|
|
|
# validate the request
|
|
if not self.validate_request(request, VBOX_ADD_NIO_SCHEMA):
|
|
return
|
|
|
|
# get the instance
|
|
vbox_instance = self.get_vbox_instance(request["id"])
|
|
if not vbox_instance:
|
|
return
|
|
|
|
port = request["port"]
|
|
try:
|
|
nio = None
|
|
if request["nio"]["type"] == "nio_udp":
|
|
lport = request["nio"]["lport"]
|
|
rhost = request["nio"]["rhost"]
|
|
rport = request["nio"]["rport"]
|
|
try:
|
|
#TODO: handle IPv6
|
|
with socket.socket(socket.AF_INET, socket.SOCK_DGRAM) as sock:
|
|
sock.connect((rhost, rport))
|
|
except OSError as e:
|
|
raise VirtualBoxError("Could not create an UDP connection to {}:{}: {}".format(rhost, rport, e))
|
|
nio = NIO_UDP(lport, rhost, rport)
|
|
if not nio:
|
|
raise VirtualBoxError("Requested NIO does not exist or is not supported: {}".format(request["nio"]["type"]))
|
|
except VirtualBoxError as e:
|
|
self.send_custom_error(str(e))
|
|
return
|
|
|
|
try:
|
|
vbox_instance.port_add_nio_binding(port, nio)
|
|
except VirtualBoxError as e:
|
|
self.send_custom_error(str(e))
|
|
return
|
|
|
|
self.send_response({"port_id": request["port_id"]})
|
|
|
|
@IModule.route("virtualbox.delete_nio")
|
|
def delete_nio(self, request):
|
|
"""
|
|
Deletes an NIO (Network Input/Output).
|
|
|
|
Mandatory request parameters:
|
|
- id (VirtualBox instance identifier)
|
|
- port (port identifier)
|
|
|
|
Response parameters:
|
|
- True on success
|
|
|
|
:param request: JSON request
|
|
"""
|
|
|
|
# validate the request
|
|
if not self.validate_request(request, VBOX_DELETE_NIO_SCHEMA):
|
|
return
|
|
|
|
# get the instance
|
|
vbox_instance = self.get_vbox_instance(request["id"])
|
|
if not vbox_instance:
|
|
return
|
|
|
|
port = request["port"]
|
|
try:
|
|
nio = vbox_instance.port_remove_nio_binding(port)
|
|
if isinstance(nio, NIO_UDP) and nio.lport in self._allocated_udp_ports:
|
|
self._allocated_udp_ports.remove(nio.lport)
|
|
except VirtualBoxError as e:
|
|
self.send_custom_error(str(e))
|
|
return
|
|
|
|
self.send_response(True)
|
|
|
|
@IModule.route("virtualbox.start_capture")
|
|
def vbox_start_capture(self, request):
|
|
"""
|
|
Starts a packet capture.
|
|
|
|
Mandatory request parameters:
|
|
- id (VirtualBox VM identifier)
|
|
- port (port number)
|
|
- port_id (port identifier)
|
|
- capture_file_name
|
|
|
|
Response parameters:
|
|
- port_id (port identifier)
|
|
- capture_file_path (path to the capture file)
|
|
|
|
:param request: JSON request
|
|
"""
|
|
|
|
# validate the request
|
|
if not self.validate_request(request, VBOX_START_CAPTURE_SCHEMA):
|
|
return
|
|
|
|
# get the instance
|
|
vbox_instance = self.get_vbox_instance(request["id"])
|
|
if not vbox_instance:
|
|
return
|
|
|
|
port = request["port"]
|
|
capture_file_name = request["capture_file_name"]
|
|
|
|
try:
|
|
capture_file_path = os.path.join(self._working_dir, "captures", capture_file_name)
|
|
vbox_instance.start_capture(port, capture_file_path)
|
|
except VirtualBoxError as e:
|
|
self.send_custom_error(str(e))
|
|
return
|
|
|
|
response = {"port_id": request["port_id"],
|
|
"capture_file_path": capture_file_path}
|
|
self.send_response(response)
|
|
|
|
@IModule.route("virtualbox.stop_capture")
|
|
def vbox_stop_capture(self, request):
|
|
"""
|
|
Stops a packet capture.
|
|
|
|
Mandatory request parameters:
|
|
- id (VirtualBox VM identifier)
|
|
- port (port number)
|
|
- port_id (port identifier)
|
|
|
|
Response parameters:
|
|
- port_id (port identifier)
|
|
|
|
:param request: JSON request
|
|
"""
|
|
|
|
# validate the request
|
|
if not self.validate_request(request, VBOX_STOP_CAPTURE_SCHEMA):
|
|
return
|
|
|
|
# get the instance
|
|
vbox_instance = self.get_vbox_instance(request["id"])
|
|
if not vbox_instance:
|
|
return
|
|
|
|
port = request["port"]
|
|
try:
|
|
vbox_instance.stop_capture(port)
|
|
except VirtualBoxError as e:
|
|
self.send_custom_error(str(e))
|
|
return
|
|
|
|
response = {"port_id": request["port_id"]}
|
|
self.send_response(response)
|
|
|
|
def _execute_vboxmanage(self, command):
|
|
"""
|
|
Executes VBoxManage and return its result.
|
|
|
|
:param command: command to execute (list)
|
|
|
|
:returns: VBoxManage output
|
|
"""
|
|
|
|
try:
|
|
result = subprocess.check_output(command, stderr=subprocess.STDOUT, universal_newlines=True, timeout=30)
|
|
except subprocess.SubprocessError as e:
|
|
raise VirtualBoxError("Could not execute VBoxManage {}".format(e))
|
|
return result
|
|
|
|
@IModule.route("virtualbox.vm_list")
|
|
def vm_list(self, request):
|
|
"""
|
|
Gets VirtualBox VM list.
|
|
|
|
Response parameters:
|
|
- Server address/host
|
|
- List of VM names
|
|
"""
|
|
|
|
try:
|
|
|
|
if request and "vboxmanage_path" in request:
|
|
vboxmanage_path = request["vboxmanage_path"]
|
|
else:
|
|
vboxmanage_path = self._vboxmanage_path
|
|
|
|
if not vboxmanage_path or not os.path.exists(vboxmanage_path):
|
|
raise VirtualBoxError("Could not find VBoxManage, is VirtualBox correctly installed?")
|
|
|
|
command = [vboxmanage_path, "--nologo", "list", "vms"]
|
|
result = self._execute_vboxmanage(command)
|
|
except VirtualBoxError as e:
|
|
self.send_custom_error(str(e))
|
|
return
|
|
|
|
vms = []
|
|
for line in result.splitlines():
|
|
vmname, uuid = line.rsplit(' ', 1)
|
|
vmname = vmname.strip('"')
|
|
if vmname == "<inaccessible>":
|
|
continue # ignore inaccessible VMs
|
|
try:
|
|
extra_data = self._execute_vboxmanage([vboxmanage_path, "getextradata", vmname, "GNS3/Clone"]).strip()
|
|
except VirtualBoxError as e:
|
|
self.send_custom_error(str(e))
|
|
return
|
|
if not extra_data == "Value: yes":
|
|
vms.append(vmname)
|
|
|
|
response = {"vms": vms}
|
|
self.send_response(response)
|
|
|
|
@IModule.route("virtualbox.echo")
|
|
def echo(self, request):
|
|
"""
|
|
Echo end point for testing purposes.
|
|
|
|
:param request: JSON request
|
|
"""
|
|
|
|
if request is None:
|
|
self.send_param_error()
|
|
else:
|
|
log.debug("received request {}".format(request))
|
|
self.send_response(request)
|