mirror of
https://github.com/GNS3/gns3-server.git
synced 2024-11-17 17:24:51 +02:00
397 lines
13 KiB
Python
397 lines
13 KiB
Python
# -*- coding: utf-8 -*-
|
|
#
|
|
# Copyright (C) 2015 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 aiohttp
|
|
import asyncio
|
|
import json
|
|
import os
|
|
import psutil
|
|
import tempfile
|
|
|
|
from gns3server.web.route import Route
|
|
from gns3server.compute.project_manager import ProjectManager
|
|
from gns3server.compute import MODULES
|
|
|
|
from gns3server.schemas.project import (
|
|
PROJECT_OBJECT_SCHEMA,
|
|
PROJECT_CREATE_SCHEMA,
|
|
PROJECT_UPDATE_SCHEMA,
|
|
PROJECT_FILE_LIST_SCHEMA,
|
|
PROJECT_LIST_SCHEMA
|
|
)
|
|
|
|
import logging
|
|
log = logging.getLogger()
|
|
|
|
|
|
class ProjectHandler:
|
|
|
|
# How many clients have subscribed to notifications
|
|
_notifications_listening = {}
|
|
|
|
@Route.get(
|
|
r"/projects",
|
|
description="List all projects opened on the server",
|
|
status_codes={
|
|
200: "Project list",
|
|
},
|
|
output=PROJECT_LIST_SCHEMA
|
|
)
|
|
def list_projects(request, response):
|
|
|
|
pm = ProjectManager.instance()
|
|
response.set_status(200)
|
|
response.json(list(pm.projects))
|
|
|
|
@Route.post(
|
|
r"/projects",
|
|
description="Create a new project on the server",
|
|
status_codes={
|
|
201: "Project created",
|
|
403: "Forbidden to create a project",
|
|
409: "Project already created"
|
|
},
|
|
output=PROJECT_OBJECT_SCHEMA,
|
|
input=PROJECT_CREATE_SCHEMA)
|
|
def create_project(request, response):
|
|
|
|
pm = ProjectManager.instance()
|
|
p = pm.create_project(
|
|
name=request.json.get("name"),
|
|
path=request.json.get("path"),
|
|
project_id=request.json.get("project_id")
|
|
)
|
|
response.set_status(201)
|
|
response.json(p)
|
|
|
|
@Route.get(
|
|
r"/projects/{project_id}",
|
|
description="Get project information",
|
|
parameters={
|
|
"project_id": "Project UUID",
|
|
},
|
|
status_codes={
|
|
200: "Success",
|
|
404: "The project doesn't exist"
|
|
},
|
|
output=PROJECT_OBJECT_SCHEMA)
|
|
def show(request, response):
|
|
|
|
pm = ProjectManager.instance()
|
|
project = pm.get_project(request.match_info["project_id"])
|
|
response.json(project)
|
|
|
|
@Route.post(
|
|
r"/projects/{project_id}/close",
|
|
description="Close a project",
|
|
parameters={
|
|
"project_id": "Project UUID",
|
|
},
|
|
status_codes={
|
|
204: "Project closed",
|
|
404: "The project doesn't exist"
|
|
})
|
|
def close(request, response):
|
|
|
|
pm = ProjectManager.instance()
|
|
project = pm.get_project(request.match_info["project_id"])
|
|
if ProjectHandler._notifications_listening.setdefault(project.id, 0) <= 1:
|
|
yield from project.close()
|
|
pm.remove_project(project.id)
|
|
try:
|
|
del ProjectHandler._notifications_listening[project.id]
|
|
except KeyError:
|
|
pass
|
|
else:
|
|
log.warning("Skip project closing, another client is listening for project notifications")
|
|
response.set_status(204)
|
|
|
|
@Route.delete(
|
|
r"/projects/{project_id}",
|
|
description="Delete a project from disk",
|
|
parameters={
|
|
"project_id": "Project UUID",
|
|
},
|
|
status_codes={
|
|
204: "Changes have been written on disk",
|
|
404: "The project doesn't exist"
|
|
})
|
|
def delete(request, response):
|
|
|
|
pm = ProjectManager.instance()
|
|
project = pm.get_project(request.match_info["project_id"])
|
|
yield from project.delete()
|
|
pm.remove_project(project.id)
|
|
response.set_status(204)
|
|
|
|
@Route.get(
|
|
r"/projects/{project_id}/notifications",
|
|
description="Receive notifications about the project",
|
|
parameters={
|
|
"project_id": "Project UUID",
|
|
},
|
|
status_codes={
|
|
200: "End of stream",
|
|
404: "The project doesn't exist"
|
|
})
|
|
def notification(request, response):
|
|
|
|
pm = ProjectManager.instance()
|
|
project = pm.get_project(request.match_info["project_id"])
|
|
|
|
response.content_type = "application/json"
|
|
response.set_status(200)
|
|
response.enable_chunked_encoding()
|
|
|
|
response.start(request)
|
|
queue = project.get_listen_queue()
|
|
ProjectHandler._notifications_listening.setdefault(project.id, 0)
|
|
ProjectHandler._notifications_listening[project.id] += 1
|
|
response.write("{}\n".format(json.dumps(ProjectHandler._getPingMessage())).encode("utf-8"))
|
|
while True:
|
|
try:
|
|
(action, msg) = yield from asyncio.wait_for(queue.get(), 5)
|
|
if hasattr(msg, "__json__"):
|
|
msg = json.dumps({"action": action, "event": msg.__json__()}, sort_keys=True)
|
|
else:
|
|
msg = json.dumps({"action": action, "event": msg}, sort_keys=True)
|
|
log.debug("Send notification: %s", msg)
|
|
response.write(("{}\n".format(msg)).encode("utf-8"))
|
|
except asyncio.futures.CancelledError as e:
|
|
break
|
|
except asyncio.futures.TimeoutError:
|
|
response.write("{}\n".format(json.dumps(ProjectHandler._getPingMessage())).encode("utf-8"))
|
|
project.stop_listen_queue(queue)
|
|
if project.id in ProjectHandler._notifications_listening:
|
|
ProjectHandler._notifications_listening[project.id] -= 1
|
|
|
|
def _getPingMessage(cls):
|
|
"""
|
|
Ping messages are regularly sent to the client to
|
|
keep the connection open. We send with it some information about server load.
|
|
|
|
:returns: hash
|
|
"""
|
|
stats = {}
|
|
# Non blocking call in order to get cpu usage. First call will return 0
|
|
stats["cpu_usage_percent"] = psutil.cpu_percent(interval=None)
|
|
stats["memory_usage_percent"] = psutil.virtual_memory().percent
|
|
return {"action": "ping", "event": stats}
|
|
|
|
@Route.get(
|
|
r"/projects/{project_id}/files",
|
|
description="List files of a project",
|
|
parameters={
|
|
"project_id": "Project UUID",
|
|
},
|
|
status_codes={
|
|
200: "Return a list of files",
|
|
404: "The project doesn't exist"
|
|
},
|
|
output=PROJECT_FILE_LIST_SCHEMA)
|
|
def list_files(request, response):
|
|
|
|
pm = ProjectManager.instance()
|
|
project = pm.get_project(request.match_info["project_id"])
|
|
files = yield from project.list_files()
|
|
response.json(files)
|
|
response.set_status(200)
|
|
|
|
@Route.get(
|
|
r"/projects/{project_id}/files/{path:.+}",
|
|
description="Get a file from a project",
|
|
parameters={
|
|
"project_id": "Project UUID",
|
|
},
|
|
status_codes={
|
|
200: "File returned",
|
|
403: "Permission denied",
|
|
404: "The file doesn't exist"
|
|
})
|
|
def get_file(request, response):
|
|
|
|
pm = ProjectManager.instance()
|
|
project = pm.get_project(request.match_info["project_id"])
|
|
path = request.match_info["path"]
|
|
path = os.path.normpath(path)
|
|
|
|
# Raise error if user try to escape
|
|
if path[0] == ".":
|
|
raise aiohttp.web.HTTPForbidden()
|
|
path = os.path.join(project.path, path)
|
|
|
|
response.content_type = "application/octet-stream"
|
|
response.set_status(200)
|
|
response.enable_chunked_encoding()
|
|
|
|
try:
|
|
with open(path, "rb") as f:
|
|
yield from response.prepare(request)
|
|
while True:
|
|
data = f.read(4096)
|
|
if not data:
|
|
break
|
|
yield from response.write(data)
|
|
|
|
except FileNotFoundError:
|
|
raise aiohttp.web.HTTPNotFound()
|
|
except PermissionError:
|
|
raise aiohttp.web.HTTPForbidden()
|
|
|
|
@Route.get(
|
|
r"/projects/{project_id}/stream/{path:.+}",
|
|
description="Stream a file from a project",
|
|
parameters={
|
|
"project_id": "Project UUID",
|
|
},
|
|
status_codes={
|
|
200: "File returned",
|
|
403: "Permission denied",
|
|
404: "The file doesn't exist"
|
|
})
|
|
def stream_file(request, response):
|
|
|
|
pm = ProjectManager.instance()
|
|
project = pm.get_project(request.match_info["project_id"])
|
|
path = request.match_info["path"]
|
|
path = os.path.normpath(path)
|
|
|
|
# Raise an error if user try to escape
|
|
if path[0] == ".":
|
|
raise aiohttp.web.HTTPForbidden()
|
|
path = os.path.join(project.path, path)
|
|
|
|
response.content_type = "application/octet-stream"
|
|
response.set_status(200)
|
|
response.enable_chunked_encoding()
|
|
|
|
try:
|
|
with open(path, "rb") as f:
|
|
yield from response.prepare(request)
|
|
while True:
|
|
data = f.read(4096)
|
|
if not data:
|
|
yield from asyncio.sleep(0.1)
|
|
yield from response.write(data)
|
|
|
|
except FileNotFoundError:
|
|
raise aiohttp.web.HTTPNotFound()
|
|
except PermissionError:
|
|
raise aiohttp.web.HTTPForbidden()
|
|
|
|
@Route.post(
|
|
r"/projects/{project_id}/files/{path:.+}",
|
|
description="Write a file to a project",
|
|
parameters={
|
|
"project_id": "Project UUID",
|
|
},
|
|
raw=True,
|
|
status_codes={
|
|
200: "File returned",
|
|
403: "Permission denied",
|
|
404: "The path doesn't exist"
|
|
})
|
|
def write_file(request, response):
|
|
|
|
pm = ProjectManager.instance()
|
|
project = pm.get_project(request.match_info["project_id"])
|
|
path = request.match_info["path"]
|
|
path = os.path.normpath(path)
|
|
|
|
# Raise error if user try to escape
|
|
if path[0] == ".":
|
|
raise aiohttp.web.HTTPForbidden()
|
|
path = os.path.join(project.path, path)
|
|
|
|
response.set_status(200)
|
|
|
|
try:
|
|
os.makedirs(os.path.dirname(path), exist_ok=True)
|
|
with open(path, 'wb+') as f:
|
|
while True:
|
|
packet = yield from request.content.read(512)
|
|
if not packet:
|
|
break
|
|
f.write(packet)
|
|
|
|
except FileNotFoundError:
|
|
raise aiohttp.web.HTTPNotFound()
|
|
except PermissionError:
|
|
raise aiohttp.web.HTTPForbidden()
|
|
|
|
@Route.get(
|
|
r"/projects/{project_id}/export",
|
|
description="Export a project as a portable archive",
|
|
parameters={
|
|
"project_id": "Project UUID",
|
|
},
|
|
raw=True,
|
|
status_codes={
|
|
200: "File returned",
|
|
404: "The project doesn't exist"
|
|
})
|
|
def export_project(request, response):
|
|
|
|
pm = ProjectManager.instance()
|
|
project = pm.get_project(request.match_info["project_id"])
|
|
response.content_type = 'application/gns3project'
|
|
response.headers['CONTENT-DISPOSITION'] = 'attachment; filename="{}.gns3project"'.format(project.name)
|
|
response.enable_chunked_encoding()
|
|
yield from response.prepare(request)
|
|
|
|
include_images = bool(int(request.json.get("include_images", "0")))
|
|
for data in project.export(include_images=include_images):
|
|
response.write(data)
|
|
yield from response.drain()
|
|
|
|
yield from response.write_eof()
|
|
|
|
@Route.post(
|
|
r"/projects/{project_id}/import",
|
|
description="Import a project from a portable archive",
|
|
parameters={
|
|
"project_id": "Project UUID",
|
|
},
|
|
raw=True,
|
|
output=PROJECT_OBJECT_SCHEMA,
|
|
status_codes={
|
|
200: "Project imported",
|
|
403: "Forbidden to import project"
|
|
})
|
|
def import_project(request, response):
|
|
|
|
pm = ProjectManager.instance()
|
|
project_id = request.match_info["project_id"]
|
|
project = pm.create_project(project_id=project_id)
|
|
|
|
# We write the content to a temporary location and after we extract it all.
|
|
# It could be more optimal to stream this but it is not implemented in Python.
|
|
# Spooled means the file is temporary kept in memory until max_size is reached
|
|
try:
|
|
with tempfile.SpooledTemporaryFile(max_size=10000) as temp:
|
|
while True:
|
|
packet = yield from request.content.read(512)
|
|
if not packet:
|
|
break
|
|
temp.write(packet)
|
|
project.import_zip(temp, gns3vm=bool(int(request.GET.get("gns3vm", "1"))))
|
|
except OSError as e:
|
|
raise aiohttp.web.HTTPInternalServerError(text="Could not import the project: {}".format(e))
|
|
|
|
response.json(project)
|
|
response.set_status(201)
|