Vehicle-Anti-Theft-Face-Rec.../venv/Lib/site-packages/notebook/terminal/handlers.py

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2020-11-12 16:05:57 +00:00
#encoding: utf-8
"""Tornado handlers for the terminal emulator."""
# Copyright (c) Jupyter Development Team.
# Distributed under the terms of the Modified BSD License.
from tornado import web
import terminado
from notebook._tz import utcnow
from ..base.handlers import IPythonHandler
from ..base.zmqhandlers import WebSocketMixin
class TerminalHandler(IPythonHandler):
"""Render the terminal interface."""
@web.authenticated
def get(self, term_name):
self.write(self.render_template('terminal.html',
ws_path="terminals/websocket/%s" % term_name))
class TermSocket(WebSocketMixin, IPythonHandler, terminado.TermSocket):
def origin_check(self):
"""Terminado adds redundant origin_check
Tornado already calls check_origin, so don't do anything here.
"""
return True
def get(self, *args, **kwargs):
if not self.get_current_user():
raise web.HTTPError(403)
if not args[0] in self.term_manager.terminals:
raise web.HTTPError(404)
return super(TermSocket, self).get(*args, **kwargs)
def on_message(self, message):
super(TermSocket, self).on_message(message)
self._update_activity()
def write_message(self, message, binary=False):
super(TermSocket, self).write_message(message, binary=binary)
self._update_activity()
def _update_activity(self):
self.application.settings['terminal_last_activity'] = utcnow()
# terminal may not be around on deletion/cull
if self.term_name in self.terminal_manager.terminals:
self.terminal_manager.terminals[self.term_name].last_activity = utcnow()