|
|
"""Tornado handlers for the notebooks web service.
|
|
|
|
|
|
Authors:
|
|
|
|
|
|
* Brian Granger
|
|
|
"""
|
|
|
|
|
|
#-----------------------------------------------------------------------------
|
|
|
# Copyright (C) 2011 The IPython Development Team
|
|
|
#
|
|
|
# Distributed under the terms of the BSD License. The full license is in
|
|
|
# the file COPYING, distributed as part of this software.
|
|
|
#-----------------------------------------------------------------------------
|
|
|
|
|
|
#-----------------------------------------------------------------------------
|
|
|
# Imports
|
|
|
#-----------------------------------------------------------------------------
|
|
|
|
|
|
import json
|
|
|
|
|
|
from tornado import web
|
|
|
|
|
|
from IPython.html.utils import url_path_join, url_escape
|
|
|
from IPython.utils.jsonutil import date_default
|
|
|
|
|
|
from IPython.html.base.handlers import (IPythonHandler, json_errors,
|
|
|
notebook_path_regex, path_regex,
|
|
|
notebook_name_regex)
|
|
|
|
|
|
#-----------------------------------------------------------------------------
|
|
|
# Notebook web service handlers
|
|
|
#-----------------------------------------------------------------------------
|
|
|
|
|
|
|
|
|
class NotebookHandler(IPythonHandler):
|
|
|
|
|
|
SUPPORTED_METHODS = (u'GET', u'PUT', u'PATCH', u'POST', u'DELETE')
|
|
|
|
|
|
def notebook_location(self, name, path=''):
|
|
|
"""Return the full URL location of a notebook based.
|
|
|
|
|
|
Parameters
|
|
|
----------
|
|
|
name : unicode
|
|
|
The base name of the notebook, such as "foo.ipynb".
|
|
|
path : unicode
|
|
|
The URL path of the notebook.
|
|
|
"""
|
|
|
return url_escape(url_path_join(
|
|
|
self.base_url, 'api', 'notebooks', path, name
|
|
|
))
|
|
|
|
|
|
def _finish_model(self, model, location=True):
|
|
|
"""Finish a JSON request with a model, setting relevant headers, etc."""
|
|
|
if location:
|
|
|
location = self.notebook_location(model['name'], model['path'])
|
|
|
self.set_header('Location', location)
|
|
|
self.set_header('Last-Modified', model['last_modified'])
|
|
|
self.finish(json.dumps(model, default=date_default))
|
|
|
|
|
|
@web.authenticated
|
|
|
@json_errors
|
|
|
def get(self, path='', name=None):
|
|
|
"""Return a Notebook or list of notebooks.
|
|
|
|
|
|
* GET with path and no notebook name lists notebooks in a directory
|
|
|
* GET with path and notebook name returns notebook JSON
|
|
|
"""
|
|
|
nbm = self.notebook_manager
|
|
|
# Check to see if a notebook name was given
|
|
|
if name is None:
|
|
|
# TODO: Remove this after we create the contents web service and directories are
|
|
|
# no longer listed by the notebook web service. This should only handle notebooks
|
|
|
# and not directories.
|
|
|
dirs = nbm.list_dirs(path)
|
|
|
notebooks = []
|
|
|
index = []
|
|
|
for nb in nbm.list_notebooks(path):
|
|
|
if nb['name'].lower() == 'index.ipynb':
|
|
|
index.append(nb)
|
|
|
else:
|
|
|
notebooks.append(nb)
|
|
|
notebooks = index + dirs + notebooks
|
|
|
self.finish(json.dumps(notebooks, default=date_default))
|
|
|
return
|
|
|
# get and return notebook representation
|
|
|
model = nbm.get_notebook_model(name, path)
|
|
|
self._finish_model(model, location=False)
|
|
|
|
|
|
@web.authenticated
|
|
|
@json_errors
|
|
|
def patch(self, path='', name=None):
|
|
|
"""PATCH renames a notebook without re-uploading content."""
|
|
|
nbm = self.notebook_manager
|
|
|
if name is None:
|
|
|
raise web.HTTPError(400, u'Notebook name missing')
|
|
|
model = self.get_json_body()
|
|
|
if model is None:
|
|
|
raise web.HTTPError(400, u'JSON body missing')
|
|
|
model = nbm.update_notebook_model(model, name, path)
|
|
|
self._finish_model(model)
|
|
|
|
|
|
def _copy_notebook(self, copy_from, path, copy_to=None):
|
|
|
"""Copy a notebook in path, optionally specifying the new name.
|
|
|
|
|
|
Only support copying within the same directory.
|
|
|
"""
|
|
|
self.log.info(u"Copying notebook from %s/%s to %s/%s",
|
|
|
path, copy_from,
|
|
|
path, copy_to or '',
|
|
|
)
|
|
|
model = self.notebook_manager.copy_notebook(copy_from, copy_to, path)
|
|
|
self.set_status(201)
|
|
|
self._finish_model(model)
|
|
|
|
|
|
def _upload_notebook(self, model, path, name=None):
|
|
|
"""Upload a notebook
|
|
|
|
|
|
If name specified, create it in path/name.
|
|
|
"""
|
|
|
self.log.info(u"Uploading notebook to %s/%s", path, name or '')
|
|
|
if name:
|
|
|
model['name'] = name
|
|
|
|
|
|
model = self.notebook_manager.create_notebook_model(model, path)
|
|
|
self.set_status(201)
|
|
|
self._finish_model(model)
|
|
|
|
|
|
def _create_empty_notebook(self, path, name=None):
|
|
|
"""Create an empty notebook in path
|
|
|
|
|
|
If name specified, create it in path/name.
|
|
|
"""
|
|
|
self.log.info(u"Creating new notebook in %s/%s", path, name or '')
|
|
|
model = {}
|
|
|
if name:
|
|
|
model['name'] = name
|
|
|
model = self.notebook_manager.create_notebook_model(model, path=path)
|
|
|
self.set_status(201)
|
|
|
self._finish_model(model)
|
|
|
|
|
|
def _save_notebook(self, model, path, name):
|
|
|
"""Save an existing notebook."""
|
|
|
self.log.info(u"Saving notebook at %s/%s", path, name)
|
|
|
model = self.notebook_manager.save_notebook_model(model, name, path)
|
|
|
if model['path'] != path.strip('/') or model['name'] != name:
|
|
|
# a rename happened, set Location header
|
|
|
location = True
|
|
|
else:
|
|
|
location = False
|
|
|
self._finish_model(model, location)
|
|
|
|
|
|
@web.authenticated
|
|
|
@json_errors
|
|
|
def post(self, path='', name=None):
|
|
|
"""Create a new notebook in the specified path.
|
|
|
|
|
|
POST creates new notebooks. The server always decides on the notebook name.
|
|
|
|
|
|
POST /api/notebooks/path
|
|
|
New untitled notebook in path. If content specified, upload a
|
|
|
notebook, otherwise start empty.
|
|
|
POST /api/notebooks/path?copy=OtherNotebook.ipynb
|
|
|
New copy of OtherNotebook in path
|
|
|
"""
|
|
|
|
|
|
if name is not None:
|
|
|
raise web.HTTPError(400, "Only POST to directories. Use PUT for full names.")
|
|
|
|
|
|
model = self.get_json_body()
|
|
|
|
|
|
if model is not None:
|
|
|
copy_from = model.get('copy_from')
|
|
|
if copy_from:
|
|
|
if model.get('content'):
|
|
|
raise web.HTTPError(400, "Can't upload and copy at the same time.")
|
|
|
self._copy_notebook(copy_from, path)
|
|
|
else:
|
|
|
self._upload_notebook(model, path)
|
|
|
else:
|
|
|
self._create_empty_notebook(path)
|
|
|
|
|
|
@web.authenticated
|
|
|
@json_errors
|
|
|
def put(self, path='', name=None):
|
|
|
"""Saves the notebook in the location specified by name and path.
|
|
|
|
|
|
PUT is very similar to POST, but the requester specifies the name,
|
|
|
whereas with POST, the server picks the name.
|
|
|
|
|
|
PUT /api/notebooks/path/Name.ipynb
|
|
|
Save notebook at ``path/Name.ipynb``. Notebook structure is specified
|
|
|
in `content` key of JSON request body. If content is not specified,
|
|
|
create a new empty notebook.
|
|
|
PUT /api/notebooks/path/Name.ipynb?copy=OtherNotebook.ipynb
|
|
|
Copy OtherNotebook to Name
|
|
|
"""
|
|
|
if name is None:
|
|
|
raise web.HTTPError(400, "Only PUT to full names. Use POST for directories.")
|
|
|
|
|
|
model = self.get_json_body()
|
|
|
if model:
|
|
|
copy_from = model.get('copy_from')
|
|
|
if copy_from:
|
|
|
if model.get('content'):
|
|
|
raise web.HTTPError(400, "Can't upload and copy at the same time.")
|
|
|
self._copy_notebook(copy_from, path, name)
|
|
|
elif self.notebook_manager.notebook_exists(name, path):
|
|
|
self._save_notebook(model, path, name)
|
|
|
else:
|
|
|
self._upload_notebook(model, path, name)
|
|
|
else:
|
|
|
self._create_empty_notebook(path, name)
|
|
|
|
|
|
@web.authenticated
|
|
|
@json_errors
|
|
|
def delete(self, path='', name=None):
|
|
|
"""delete the notebook in the given notebook path"""
|
|
|
nbm = self.notebook_manager
|
|
|
nbm.delete_notebook_model(name, path)
|
|
|
self.set_status(204)
|
|
|
self.finish()
|
|
|
|
|
|
|
|
|
class NotebookCheckpointsHandler(IPythonHandler):
|
|
|
|
|
|
SUPPORTED_METHODS = ('GET', 'POST')
|
|
|
|
|
|
@web.authenticated
|
|
|
@json_errors
|
|
|
def get(self, path='', name=None):
|
|
|
"""get lists checkpoints for a notebook"""
|
|
|
nbm = self.notebook_manager
|
|
|
checkpoints = nbm.list_checkpoints(name, path)
|
|
|
data = json.dumps(checkpoints, default=date_default)
|
|
|
self.finish(data)
|
|
|
|
|
|
@web.authenticated
|
|
|
@json_errors
|
|
|
def post(self, path='', name=None):
|
|
|
"""post creates a new checkpoint"""
|
|
|
nbm = self.notebook_manager
|
|
|
checkpoint = nbm.create_checkpoint(name, path)
|
|
|
data = json.dumps(checkpoint, default=date_default)
|
|
|
location = url_path_join(self.base_url, 'api/notebooks',
|
|
|
path, name, 'checkpoints', checkpoint['id'])
|
|
|
self.set_header('Location', url_escape(location))
|
|
|
self.set_status(201)
|
|
|
self.finish(data)
|
|
|
|
|
|
|
|
|
class ModifyNotebookCheckpointsHandler(IPythonHandler):
|
|
|
|
|
|
SUPPORTED_METHODS = ('POST', 'DELETE')
|
|
|
|
|
|
@web.authenticated
|
|
|
@json_errors
|
|
|
def post(self, path, name, checkpoint_id):
|
|
|
"""post restores a notebook from a checkpoint"""
|
|
|
nbm = self.notebook_manager
|
|
|
nbm.restore_checkpoint(checkpoint_id, name, path)
|
|
|
self.set_status(204)
|
|
|
self.finish()
|
|
|
|
|
|
@web.authenticated
|
|
|
@json_errors
|
|
|
def delete(self, path, name, checkpoint_id):
|
|
|
"""delete clears a checkpoint for a given notebook"""
|
|
|
nbm = self.notebook_manager
|
|
|
nbm.delete_checkpoint(checkpoint_id, name, path)
|
|
|
self.set_status(204)
|
|
|
self.finish()
|
|
|
|
|
|
#-----------------------------------------------------------------------------
|
|
|
# URL to handler mappings
|
|
|
#-----------------------------------------------------------------------------
|
|
|
|
|
|
|
|
|
_checkpoint_id_regex = r"(?P<checkpoint_id>[\w-]+)"
|
|
|
|
|
|
default_handlers = [
|
|
|
(r"/api/notebooks%s/checkpoints" % notebook_path_regex, NotebookCheckpointsHandler),
|
|
|
(r"/api/notebooks%s/checkpoints/%s" % (notebook_path_regex, _checkpoint_id_regex),
|
|
|
ModifyNotebookCheckpointsHandler),
|
|
|
(r"/api/notebooks%s" % notebook_path_regex, NotebookHandler),
|
|
|
(r"/api/notebooks%s" % path_regex, NotebookHandler),
|
|
|
]
|
|
|
|
|
|
|
|
|
|
|
|
|
