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gns3-server/gns3server/handlers/file_upload_handler.py

81 lines
2.5 KiB

# -*- coding: utf-8 -*-
#
# Copyright (C) 2014 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/>.
"""
Simple file upload & listing handler.
"""
import os
import stat
import tornado.web
from ..config import Config
import logging
log = logging.getLogger(__name__)
class FileUploadHandler(tornado.web.RequestHandler):
"""
File upload handler.
:param application: Tornado Application instance
:param request: Tornado Request instance
"""
def __init__(self, application, request):
# get the upload directory from the configuration file
config = Config.instance()
server_config = config.get_default_section()
# default projects directory is "~/Documents/GNS3/images"
self._upload_dir = os.path.expandvars(os.path.expanduser(server_config.get("upload_directory", "~/Documents/GNS3/images")))
if not os.path.exists(self._upload_dir):
try:
os.makedirs(self._upload_dir)
log.info("upload directory '{}' created".format(self._upload_dir))
except EnvironmentError as e:
log.error("could not create the upload directory {}: {}".format(self._upload_dir, e))
tornado.websocket.WebSocketHandler.__init__(self, application, request)
def get(self):
"""
Invoked on GET request.
"""
items = []
path = self._upload_dir
for filename in os.listdir(path):
items.append(filename)
self.render("upload.html", path=path, items=items)
def post(self):
"""
Invoked on POST request.
"""
fileinfo = self.request.files["file"][0]
destination_path = os.path.join(self._upload_dir, fileinfo['filename'])
with open(destination_path, 'wb') as f:
f.write(fileinfo['body'])
st = os.stat(destination_path)
os.chmod(destination_path, st.st_mode | stat.S_IXUSR)
self.redirect("/upload")