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"""Serve files directly from the ContentsManager."""
# Copyright (c) Jupyter Development Team.
# Distributed under the terms of the Modified BSD License.
import os
import mimetypes
import json
import base64
from tornado import web, escape
from notebook.base.handlers import IPythonHandler
class FilesHandler(IPythonHandler):
"""serve files via ContentsManager"""
@web.authenticated
def get(self, path):
cm = self.contents_manager
if cm.is_hidden(path):
self.log.info("Refusing to serve hidden file, via 404 Error")
raise web.HTTPError(404)
path = path.strip('/')
if '/' in path:
_, name = path.rsplit('/', 1)
else:
name = path
model = cm.get(path, type='file')
if self.get_argument("download", False):
self.set_header('Content-Disposition','attachment; filename="%s"' % escape.url_escape(name))
# get mimetype from filename
if name.endswith('.ipynb'):
self.set_header('Content-Type', 'application/json')
else:
cur_mime = mimetypes.guess_type(name)[0]
if cur_mime is not None:
self.set_header('Content-Type', cur_mime)
else:
if model['format'] == 'base64':
self.set_header('Content-Type', 'application/octet-stream')
else:
self.set_header('Content-Type', 'text/plain')
if model['format'] == 'base64':
b64_bytes = model['content'].encode('ascii')
self.write(base64.decodestring(b64_bytes))
elif model['format'] == 'json':
self.write(json.dumps(model['content']))
else:
self.write(model['content'])
self.flush()
default_handlers = [
(r"/files/(.*)", FilesHandler),
]
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