|
|
"""A tornado based IPython notebook server.
|
|
|
|
|
|
Authors:
|
|
|
|
|
|
* Brian Granger
|
|
|
"""
|
|
|
|
|
|
#-----------------------------------------------------------------------------
|
|
|
# Copyright (C) 2008-2011 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 errno
|
|
|
import logging
|
|
|
import os
|
|
|
import signal
|
|
|
import socket
|
|
|
import sys
|
|
|
|
|
|
import zmq
|
|
|
|
|
|
# Install the pyzmq ioloop. This has to be done before anything else from
|
|
|
# tornado is imported.
|
|
|
from zmq.eventloop import ioloop
|
|
|
import tornado.ioloop
|
|
|
tornado.ioloop = ioloop
|
|
|
|
|
|
from tornado import httpserver
|
|
|
from tornado import web
|
|
|
|
|
|
from .kernelmanager import MappingKernelManager
|
|
|
from .handlers import (LoginHandler,
|
|
|
NBBrowserHandler, NewHandler, NamedNotebookHandler,
|
|
|
MainKernelHandler, KernelHandler, KernelActionHandler, IOPubHandler,
|
|
|
ShellHandler, NotebookRootHandler, NotebookHandler, RSTHandler
|
|
|
)
|
|
|
from .notebookmanager import NotebookManager
|
|
|
|
|
|
from IPython.core.application import BaseIPythonApplication
|
|
|
from IPython.core.profiledir import ProfileDir
|
|
|
from IPython.zmq.session import Session
|
|
|
from IPython.zmq.zmqshell import ZMQInteractiveShell
|
|
|
from IPython.zmq.ipkernel import (
|
|
|
flags as ipkernel_flags,
|
|
|
aliases as ipkernel_aliases,
|
|
|
IPKernelApp
|
|
|
)
|
|
|
from IPython.utils.traitlets import Dict, Unicode, Int, List, Enum
|
|
|
|
|
|
#-----------------------------------------------------------------------------
|
|
|
# Module globals
|
|
|
#-----------------------------------------------------------------------------
|
|
|
|
|
|
_kernel_id_regex = r"(?P<kernel_id>\w+-\w+-\w+-\w+-\w+)"
|
|
|
_kernel_action_regex = r"(?P<action>restart|interrupt)"
|
|
|
_notebook_id_regex = r"(?P<notebook_id>\w+-\w+-\w+-\w+-\w+)"
|
|
|
|
|
|
LOCALHOST = '127.0.0.1'
|
|
|
|
|
|
_examples = """
|
|
|
ipython notebook # start the notebook
|
|
|
ipython notebook --profile=sympy # use the sympy profile
|
|
|
ipython notebook --pylab=inline # pylab in inline plotting mode
|
|
|
ipython notebook --certfile=mycert.pem # use SSL/TLS certificate
|
|
|
ipython notebook --port=5555 --ip=* # Listen on port 5555, all interfaces
|
|
|
"""
|
|
|
|
|
|
#-----------------------------------------------------------------------------
|
|
|
# The Tornado web application
|
|
|
#-----------------------------------------------------------------------------
|
|
|
|
|
|
class NotebookWebApplication(web.Application):
|
|
|
|
|
|
def __init__(self, ipython_app, kernel_manager, notebook_manager, log):
|
|
|
handlers = [
|
|
|
(r"/", NBBrowserHandler),
|
|
|
(r"/login", LoginHandler),
|
|
|
(r"/new", NewHandler),
|
|
|
(r"/%s" % _notebook_id_regex, NamedNotebookHandler),
|
|
|
(r"/kernels", MainKernelHandler),
|
|
|
(r"/kernels/%s" % _kernel_id_regex, KernelHandler),
|
|
|
(r"/kernels/%s/%s" % (_kernel_id_regex, _kernel_action_regex), KernelActionHandler),
|
|
|
(r"/kernels/%s/iopub" % _kernel_id_regex, IOPubHandler),
|
|
|
(r"/kernels/%s/shell" % _kernel_id_regex, ShellHandler),
|
|
|
(r"/notebooks", NotebookRootHandler),
|
|
|
(r"/notebooks/%s" % _notebook_id_regex, NotebookHandler),
|
|
|
(r"/rstservice/render", RSTHandler)
|
|
|
]
|
|
|
settings = dict(
|
|
|
template_path=os.path.join(os.path.dirname(__file__), "templates"),
|
|
|
static_path=os.path.join(os.path.dirname(__file__), "static"),
|
|
|
cookie_secret=os.urandom(1024),
|
|
|
login_url="/login",
|
|
|
)
|
|
|
web.Application.__init__(self, handlers, **settings)
|
|
|
|
|
|
self.kernel_manager = kernel_manager
|
|
|
self.log = log
|
|
|
self.notebook_manager = notebook_manager
|
|
|
self.ipython_app = ipython_app
|
|
|
|
|
|
|
|
|
#-----------------------------------------------------------------------------
|
|
|
# Aliases and Flags
|
|
|
#-----------------------------------------------------------------------------
|
|
|
|
|
|
flags = dict(ipkernel_flags)
|
|
|
|
|
|
# the flags that are specific to the frontend
|
|
|
# these must be scrubbed before being passed to the kernel,
|
|
|
# or it will raise an error on unrecognized flags
|
|
|
notebook_flags = []
|
|
|
|
|
|
aliases = dict(ipkernel_aliases)
|
|
|
|
|
|
aliases.update({
|
|
|
'ip': 'IPythonNotebookApp.ip',
|
|
|
'port': 'IPythonNotebookApp.port',
|
|
|
'keyfile': 'IPythonNotebookApp.keyfile',
|
|
|
'certfile': 'IPythonNotebookApp.certfile',
|
|
|
'ws-hostname': 'IPythonNotebookApp.ws_hostname',
|
|
|
'notebook-dir': 'NotebookManager.notebook_dir',
|
|
|
})
|
|
|
|
|
|
notebook_aliases = [u'port', u'ip', u'keyfile', u'certfile', u'ws-hostname',
|
|
|
u'notebook-dir']
|
|
|
|
|
|
#-----------------------------------------------------------------------------
|
|
|
# IPythonNotebookApp
|
|
|
#-----------------------------------------------------------------------------
|
|
|
|
|
|
class IPythonNotebookApp(BaseIPythonApplication):
|
|
|
|
|
|
name = 'ipython-notebook'
|
|
|
default_config_file_name='ipython_notebook_config.py'
|
|
|
|
|
|
description = """
|
|
|
The IPython HTML Notebook.
|
|
|
|
|
|
This launches a Tornado based HTML Notebook Server that serves up an
|
|
|
HTML5/Javascript Notebook client.
|
|
|
"""
|
|
|
examples = _examples
|
|
|
|
|
|
classes = [IPKernelApp, ZMQInteractiveShell, ProfileDir, Session,
|
|
|
MappingKernelManager, NotebookManager]
|
|
|
flags = Dict(flags)
|
|
|
aliases = Dict(aliases)
|
|
|
|
|
|
kernel_argv = List(Unicode)
|
|
|
|
|
|
log_level = Enum((0,10,20,30,40,50,'DEBUG','INFO','WARN','ERROR','CRITICAL'),
|
|
|
default_value=logging.INFO,
|
|
|
config=True,
|
|
|
help="Set the log level by value or name.")
|
|
|
|
|
|
# Network related information.
|
|
|
|
|
|
ip = Unicode(LOCALHOST, config=True,
|
|
|
help="The IP address the notebook server will listen on."
|
|
|
)
|
|
|
|
|
|
def _ip_changed(self, name, old, new):
|
|
|
if new == u'*': self.ip = u''
|
|
|
|
|
|
port = Int(8888, config=True,
|
|
|
help="The port the notebook server will listen on."
|
|
|
)
|
|
|
|
|
|
ws_hostname = Unicode(LOCALHOST, config=True,
|
|
|
help="""The FQDN or IP for WebSocket connections. The default will work
|
|
|
fine when the server is listening on localhost, but this needs to
|
|
|
be set if the ip option is used. It will be used as the hostname part
|
|
|
of the WebSocket url: ws://hostname/path."""
|
|
|
)
|
|
|
|
|
|
certfile = Unicode(u'', config=True,
|
|
|
help="""The full path to an SSL/TLS certificate file."""
|
|
|
)
|
|
|
|
|
|
keyfile = Unicode(u'', config=True,
|
|
|
help="""The full path to a private key file for usage with SSL/TLS."""
|
|
|
)
|
|
|
|
|
|
password = Unicode(u'', config=True,
|
|
|
help="""Password to use for web authentication"""
|
|
|
)
|
|
|
|
|
|
def get_ws_url(self):
|
|
|
"""Return the WebSocket URL for this server."""
|
|
|
if self.certfile:
|
|
|
prefix = u'wss://'
|
|
|
else:
|
|
|
prefix = u'ws://'
|
|
|
return prefix + self.ws_hostname + u':' + unicode(self.port)
|
|
|
|
|
|
def parse_command_line(self, argv=None):
|
|
|
super(IPythonNotebookApp, self).parse_command_line(argv)
|
|
|
if argv is None:
|
|
|
argv = sys.argv[1:]
|
|
|
|
|
|
self.kernel_argv = list(argv) # copy
|
|
|
# Kernel should inherit default config file from frontend
|
|
|
self.kernel_argv.append("--KernelApp.parent_appname='%s'"%self.name)
|
|
|
# Scrub frontend-specific flags
|
|
|
for a in argv:
|
|
|
if a.startswith('-') and a.lstrip('-') in notebook_flags:
|
|
|
self.kernel_argv.remove(a)
|
|
|
for a in argv:
|
|
|
if a.startswith('-'):
|
|
|
alias = a.lstrip('-').split('=')[0]
|
|
|
if alias in notebook_aliases:
|
|
|
self.kernel_argv.remove(a)
|
|
|
|
|
|
def init_configurables(self):
|
|
|
# Don't let Qt or ZMQ swallow KeyboardInterupts.
|
|
|
signal.signal(signal.SIGINT, signal.SIG_DFL)
|
|
|
|
|
|
# Create a KernelManager and start a kernel.
|
|
|
self.kernel_manager = MappingKernelManager(
|
|
|
config=self.config, log=self.log, kernel_argv=self.kernel_argv
|
|
|
)
|
|
|
self.notebook_manager = NotebookManager(config=self.config, log=self.log)
|
|
|
self.notebook_manager.list_notebooks()
|
|
|
|
|
|
def init_logging(self):
|
|
|
super(IPythonNotebookApp, self).init_logging()
|
|
|
# This prevents double log messages because tornado use a root logger that
|
|
|
# self.log is a child of. The logging module dipatches log messages to a log
|
|
|
# and all of its ancenstors until propagate is set to False.
|
|
|
self.log.propagate = False
|
|
|
|
|
|
def initialize(self, argv=None):
|
|
|
super(IPythonNotebookApp, self).initialize(argv)
|
|
|
self.init_configurables()
|
|
|
self.web_app = NotebookWebApplication(
|
|
|
self, self.kernel_manager, self.notebook_manager, self.log
|
|
|
)
|
|
|
if self.certfile:
|
|
|
ssl_options = dict(certfile=self.certfile)
|
|
|
if self.keyfile:
|
|
|
ssl_options['keyfile'] = self.keyfile
|
|
|
else:
|
|
|
ssl_options = None
|
|
|
self.web_app.password = self.password
|
|
|
self.http_server = httpserver.HTTPServer(self.web_app, ssl_options=ssl_options)
|
|
|
if ssl_options is None and not self.ip:
|
|
|
self.log.critical('WARNING: the notebook server is listening on all IP addresses '
|
|
|
'but not using any encryption or authentication. This is highly '
|
|
|
'insecure and not recommended.')
|
|
|
|
|
|
# Try random ports centered around the default.
|
|
|
from random import randint
|
|
|
n = 50 # Max number of attempts, keep reasonably large.
|
|
|
for port in [self.port] + [self.port + randint(-2*n, 2*n) for i in range(n)]:
|
|
|
try:
|
|
|
self.http_server.listen(port, self.ip)
|
|
|
except socket.error, e:
|
|
|
if e.errno != errno.EADDRINUSE:
|
|
|
raise
|
|
|
self.log.info('The port %i is already in use, trying another random port.' % port)
|
|
|
else:
|
|
|
self.port = port
|
|
|
break
|
|
|
|
|
|
def start(self):
|
|
|
ip = self.ip if self.ip else '[all ip addresses on your system]'
|
|
|
proto = 'https' if self.certfile else 'http'
|
|
|
self.log.info("The IPython Notebook is running at: %s://%s:%i" % (proto,
|
|
|
ip,
|
|
|
self.port))
|
|
|
ioloop.IOLoop.instance().start()
|
|
|
|
|
|
#-----------------------------------------------------------------------------
|
|
|
# Main entry point
|
|
|
#-----------------------------------------------------------------------------
|
|
|
|
|
|
def launch_new_instance():
|
|
|
app = IPythonNotebookApp()
|
|
|
app.initialize()
|
|
|
app.start()
|
|
|
|
|
|
|
