mirror of
https://github.com/GNS3/gns3-server
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215 lines
8.4 KiB
Python
215 lines
8.4 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 os
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import sys
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import json
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import uuid
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import shutil
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import asyncio
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import zipfile
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import aiohttp
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from ..config import Config
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from .topology import load_topology
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"""
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Handle the import of project from a .gns3project
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"""
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@asyncio.coroutine
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def import_project(controller, project_id, stream, location=None, name=None, keep_compute_id=False):
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"""
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Import a project contain in a zip file
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You need to handle OSerror exceptions
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:param controller: GNS3 Controller
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:param project_id: ID of the project to import
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:param stream: A io.BytesIO of the zipfile
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:param location: Directory for the project if None put in the default directory
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:param name: Wanted project name, generate one from the .gns3 if None
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:param keep_compute_id: If true do not touch the compute id
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:returns: Project
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"""
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if location and ".gns3" in location:
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raise aiohttp.web.HTTPConflict(text="The destination path should not contain .gns3")
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try:
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with zipfile.ZipFile(stream) as myzip:
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try:
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topology = json.loads(myzip.read("project.gns3").decode())
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# We import the project on top of an existing project (snapshots)
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if topology["project_id"] == project_id:
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project_name = topology["name"]
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else:
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# If the project name is already used we generate a new one
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if name:
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project_name = controller.get_free_project_name(name)
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else:
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project_name = controller.get_free_project_name(topology["name"])
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except KeyError:
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raise aiohttp.web.HTTPConflict(text="Can't import topology the .gns3 is corrupted or missing")
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if location:
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path = location
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else:
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projects_path = controller.projects_directory()
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path = os.path.join(projects_path, project_name)
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try:
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os.makedirs(path, exist_ok=True)
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except UnicodeEncodeError as e:
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raise aiohttp.web.HTTPConflict(text="The project name contain non supported or invalid characters")
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myzip.extractall(path)
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topology = load_topology(os.path.join(path, "project.gns3"))
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topology["name"] = project_name
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# To avoid unexpected behavior (project start without manual operations just after import)
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topology["auto_start"] = False
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topology["auto_open"] = False
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topology["auto_close"] = True
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# Generate a new node id
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node_old_to_new = {}
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for node in topology["topology"]["nodes"]:
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if "node_id" in node:
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node_old_to_new[node["node_id"]] = str(uuid.uuid4())
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_move_node_file(path, node["node_id"], node_old_to_new[node["node_id"]])
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node["node_id"] = node_old_to_new[node["node_id"]]
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else:
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node["node_id"] = str(uuid.uuid4())
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# Update link to use new id
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for link in topology["topology"]["links"]:
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link["link_id"] = str(uuid.uuid4())
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for node in link["nodes"]:
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node["node_id"] = node_old_to_new[node["node_id"]]
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# Generate new drawings id
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for drawing in topology["topology"]["drawings"]:
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drawing["drawing_id"] = str(uuid.uuid4())
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# Modify the compute id of the node depending of compute capacity
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if not keep_compute_id:
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# For some VM type we move them to the GNS3 VM if possible
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# unless it's a linux host without GNS3 VM
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if not sys.platform.startswith("linux") or controller.has_compute("vm"):
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for node in topology["topology"]["nodes"]:
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if node["node_type"] in ("docker", "qemu", "iou"):
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node["compute_id"] = "vm"
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else:
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for node in topology["topology"]["nodes"]:
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node["compute_id"] = "local"
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compute_created = set()
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for node in topology["topology"]["nodes"]:
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if node["compute_id"] != "local":
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# Project created on the remote GNS3 VM?
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if node["compute_id"] not in compute_created:
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compute = controller.get_compute(node["compute_id"])
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yield from compute.post("/projects", data={
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"name": project_name,
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"project_id": project_id,
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})
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compute_created.add(node["compute_id"])
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yield from _move_files_to_compute(compute, project_id, path, os.path.join("project-files", node["node_type"], node["node_id"]))
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# And we dump the updated.gns3
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dot_gns3_path = os.path.join(path, project_name + ".gns3")
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# We change the project_id to avoid erasing the project
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topology["project_id"] = project_id
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with open(dot_gns3_path, "w+") as f:
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json.dump(topology, f, indent=4)
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os.remove(os.path.join(path, "project.gns3"))
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if os.path.exists(os.path.join(path, "images")):
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_import_images(controller, path)
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project = yield from controller.load_project(dot_gns3_path, load=False)
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return project
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except zipfile.BadZipFile:
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raise aiohttp.web.HTTPConflict(text="Can't import topology the file is corrupted or not a GNS3 project (invalid zip)")
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def _move_node_file(path, old_id, new_id):
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"""
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Move the files from a node when changing his id
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:param path: Path of the project
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:param old_id: ID before change
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:param new_id: New node UUID
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"""
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root = os.path.join(path, "project-files")
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if os.path.exists(root):
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for dirname in os.listdir(root):
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module_dir = os.path.join(root, dirname)
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if os.path.isdir(module_dir):
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node_dir = os.path.join(module_dir, old_id)
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if os.path.exists(node_dir):
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shutil.move(node_dir, os.path.join(module_dir, new_id))
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@asyncio.coroutine
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def _move_files_to_compute(compute, project_id, directory, files_path):
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"""
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Move the files to a remote compute
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"""
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location = os.path.join(directory, files_path)
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if os.path.exists(location):
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for (dirpath, dirnames, filenames) in os.walk(location):
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for filename in filenames:
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path = os.path.join(dirpath, filename)
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dst = os.path.relpath(path, directory)
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yield from _upload_file(compute, project_id, path, dst)
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shutil.rmtree(os.path.join(directory, files_path))
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@asyncio.coroutine
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def _upload_file(compute, project_id, file_path, path):
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"""
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Upload a file to a remote project
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:param file_path: File path on the controller file system
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:param path: File path on the remote system relative to project directory
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"""
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path = "/projects/{}/files/{}".format(project_id, path.replace("\\", "/"))
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with open(file_path, "rb") as f:
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yield from compute.http_query("POST", path, f, timeout=None)
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def _import_images(controller, path):
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"""
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Copy images to the images directory or delete them if they
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already exists.
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"""
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image_dir = controller.images_path()
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root = os.path.join(path, "images")
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for (dirpath, dirnames, filenames) in os.walk(root):
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for filename in filenames:
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path = os.path.join(dirpath, filename)
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dst = os.path.join(image_dir, os.path.relpath(path, root))
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os.makedirs(os.path.dirname(dst), exist_ok=True)
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shutil.move(path, dst)
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