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"""Tornado handlers for the notebook.
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"""Tornado handlers for the notebook.
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Authors:
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Authors:
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* Brian Granger
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* Brian Granger
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"""
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"""
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#-----------------------------------------------------------------------------
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#-----------------------------------------------------------------------------
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# Copyright (C) 2008-2011 The IPython Development Team
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# Copyright (C) 2008-2011 The IPython Development Team
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#
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#
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# Distributed under the terms of the BSD License. The full license is in
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# Distributed under the terms of the BSD License. The full license is in
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# the file COPYING, distributed as part of this software.
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# the file COPYING, distributed as part of this software.
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#-----------------------------------------------------------------------------
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#-----------------------------------------------------------------------------
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#-----------------------------------------------------------------------------
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#-----------------------------------------------------------------------------
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# Imports
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# Imports
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#-----------------------------------------------------------------------------
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#-----------------------------------------------------------------------------
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import logging
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import logging
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import Cookie
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import Cookie
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import uuid
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import uuid
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from tornado import web
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from tornado import web
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from tornado import websocket
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from tornado import websocket
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from zmq.eventloop import ioloop
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from zmq.eventloop import ioloop
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from zmq.utils import jsonapi
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from zmq.utils import jsonapi
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from IPython.external.decorator import decorator
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from IPython.external.decorator import decorator
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from IPython.zmq.session import Session
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from IPython.zmq.session import Session
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from IPython.lib.security import passwd_check
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from IPython.lib.security import passwd_check
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try:
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try:
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from docutils.core import publish_string
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from docutils.core import publish_string
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except ImportError:
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except ImportError:
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publish_string = None
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publish_string = None
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#-----------------------------------------------------------------------------
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#-----------------------------------------------------------------------------
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# Monkeypatch for Tornado <= 2.1.1 - Remove when no longer necessary!
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# Monkeypatch for Tornado <= 2.1.1 - Remove when no longer necessary!
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#-----------------------------------------------------------------------------
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#-----------------------------------------------------------------------------
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# Google Chrome, as of release 16, changed its websocket protocol number. The
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# Google Chrome, as of release 16, changed its websocket protocol number. The
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# parts tornado cares about haven't really changed, so it's OK to continue
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# parts tornado cares about haven't really changed, so it's OK to continue
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# accepting Chrome connections, but as of Tornado 2.1.1 (the currently released
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# accepting Chrome connections, but as of Tornado 2.1.1 (the currently released
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# version as of Oct 30/2011) the version check fails, see the issue report:
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# version as of Oct 30/2011) the version check fails, see the issue report:
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# https://github.com/facebook/tornado/issues/385
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# https://github.com/facebook/tornado/issues/385
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# This issue has been fixed in Tornado post 2.1.1:
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# This issue has been fixed in Tornado post 2.1.1:
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# https://github.com/facebook/tornado/commit/84d7b458f956727c3b0d6710
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# https://github.com/facebook/tornado/commit/84d7b458f956727c3b0d6710
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# Here we manually apply the same patch as above so that users of IPython can
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# Here we manually apply the same patch as above so that users of IPython can
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# continue to work with an officially released Tornado. We make the
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# continue to work with an officially released Tornado. We make the
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# monkeypatch version check as narrow as possible to limit its effects; once
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# monkeypatch version check as narrow as possible to limit its effects; once
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# Tornado 2.1.1 is no longer found in the wild we'll delete this code.
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# Tornado 2.1.1 is no longer found in the wild we'll delete this code.
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import tornado
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import tornado
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if tornado.version_info <= (2,1,1):
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if tornado.version_info <= (2,1,1):
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def _execute(self, transforms, *args, **kwargs):
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def _execute(self, transforms, *args, **kwargs):
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from tornado.websocket import WebSocketProtocol8, WebSocketProtocol76
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from tornado.websocket import WebSocketProtocol8, WebSocketProtocol76
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self.open_args = args
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self.open_args = args
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self.open_kwargs = kwargs
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self.open_kwargs = kwargs
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# The difference between version 8 and 13 is that in 8 the
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# The difference between version 8 and 13 is that in 8 the
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# client sends a "Sec-Websocket-Origin" header and in 13 it's
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# client sends a "Sec-Websocket-Origin" header and in 13 it's
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# simply "Origin".
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# simply "Origin".
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if self.request.headers.get("Sec-WebSocket-Version") in ("7", "8", "13"):
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if self.request.headers.get("Sec-WebSocket-Version") in ("7", "8", "13"):
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self.ws_connection = WebSocketProtocol8(self)
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self.ws_connection = WebSocketProtocol8(self)
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self.ws_connection.accept_connection()
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self.ws_connection.accept_connection()
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elif self.request.headers.get("Sec-WebSocket-Version"):
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elif self.request.headers.get("Sec-WebSocket-Version"):
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self.stream.write(tornado.escape.utf8(
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self.stream.write(tornado.escape.utf8(
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"HTTP/1.1 426 Upgrade Required\r\n"
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"HTTP/1.1 426 Upgrade Required\r\n"
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"Sec-WebSocket-Version: 8\r\n\r\n"))
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"Sec-WebSocket-Version: 8\r\n\r\n"))
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self.stream.close()
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self.stream.close()
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else:
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else:
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self.ws_connection = WebSocketProtocol76(self)
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self.ws_connection = WebSocketProtocol76(self)
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self.ws_connection.accept_connection()
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self.ws_connection.accept_connection()
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websocket.WebSocketHandler._execute = _execute
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websocket.WebSocketHandler._execute = _execute
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del _execute
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del _execute
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#-----------------------------------------------------------------------------
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#-----------------------------------------------------------------------------
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# Decorator for disabling read-only handlers
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# Decorator for disabling read-only handlers
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#-----------------------------------------------------------------------------
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#-----------------------------------------------------------------------------
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@decorator
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@decorator
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def not_if_readonly(f, self, *args, **kwargs):
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def not_if_readonly(f, self, *args, **kwargs):
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if self.application.read_only:
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if self.application.read_only:
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raise web.HTTPError(403, "Notebook server is read-only")
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raise web.HTTPError(403, "Notebook server is read-only")
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else:
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else:
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return f(self, *args, **kwargs)
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return f(self, *args, **kwargs)
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@decorator
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@decorator
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def authenticate_unless_readonly(f, self, *args, **kwargs):
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def authenticate_unless_readonly(f, self, *args, **kwargs):
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"""authenticate this page *unless* readonly view is active.
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"""authenticate this page *unless* readonly view is active.
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In read-only mode, the notebook list and print view should
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In read-only mode, the notebook list and print view should
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be accessible without authentication.
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be accessible without authentication.
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"""
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"""
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@web.authenticated
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@web.authenticated
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def auth_f(self, *args, **kwargs):
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def auth_f(self, *args, **kwargs):
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return f(self, *args, **kwargs)
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return f(self, *args, **kwargs)
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if self.application.read_only:
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if self.application.read_only:
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return f(self, *args, **kwargs)
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return f(self, *args, **kwargs)
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else:
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else:
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return auth_f(self, *args, **kwargs)
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return auth_f(self, *args, **kwargs)
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#-----------------------------------------------------------------------------
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#-----------------------------------------------------------------------------
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# Top-level handlers
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# Top-level handlers
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#-----------------------------------------------------------------------------
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#-----------------------------------------------------------------------------
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class AuthenticatedHandler(web.RequestHandler):
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class RequestHandler(web.RequestHandler):
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"""RequestHandler with default variable setting."""
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def render(*args, **kwargs):
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kwargs.setdefault('message', '')
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return web.RequestHandler.render(*args, **kwargs)
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class AuthenticatedHandler(RequestHandler):
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"""A RequestHandler with an authenticated user."""
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"""A RequestHandler with an authenticated user."""
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def get_current_user(self):
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def get_current_user(self):
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user_id = self.get_secure_cookie("username")
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user_id = self.get_secure_cookie("username")
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# For now the user_id should not return empty, but it could eventually
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# For now the user_id should not return empty, but it could eventually
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if user_id == '':
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if user_id == '':
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user_id = 'anonymous'
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user_id = 'anonymous'
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if user_id is None:
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if user_id is None:
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# prevent extra Invalid cookie sig warnings:
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# prevent extra Invalid cookie sig warnings:
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self.clear_cookie('username')
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self.clear_cookie('username')
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if not self.application.password and not self.application.read_only:
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if not self.application.password and not self.application.read_only:
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user_id = 'anonymous'
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user_id = 'anonymous'
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return user_id
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return user_id
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@property
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@property
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def read_only(self):
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def read_only(self):
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if self.application.read_only:
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if self.application.read_only:
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if self.application.password:
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if self.application.password:
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return self.get_current_user() is None
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return self.get_current_user() is None
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else:
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else:
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return True
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return True
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else:
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else:
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return False
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return False
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@property
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@property
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def ws_url(self):
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def ws_url(self):
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"""websocket url matching the current request
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"""websocket url matching the current request
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turns http[s]://host[:port] into
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turns http[s]://host[:port] into
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ws[s]://host[:port]
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ws[s]://host[:port]
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"""
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"""
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proto = self.request.protocol.replace('http', 'ws')
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proto = self.request.protocol.replace('http', 'ws')
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return "%s://%s" % (proto, self.request.host)
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return "%s://%s" % (proto, self.request.host)
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class ProjectDashboardHandler(AuthenticatedHandler):
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class ProjectDashboardHandler(AuthenticatedHandler):
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@authenticate_unless_readonly
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@authenticate_unless_readonly
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def get(self):
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def get(self):
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nbm = self.application.notebook_manager
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nbm = self.application.notebook_manager
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project = nbm.notebook_dir
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project = nbm.notebook_dir
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self.render(
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self.render(
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'projectdashboard.html', project=project,
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'projectdashboard.html', project=project,
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base_project_url=u'/', base_kernel_url=u'/',
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base_project_url=u'/', base_kernel_url=u'/',
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read_only=self.read_only,
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read_only=self.read_only,
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)
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)
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class LoginHandler(AuthenticatedHandler):
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class LoginHandler(AuthenticatedHandler):
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def _render(self, message=''):
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def _render(self, message=''):
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self.render('login.html',
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self.render('login.html',
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next=self.get_argument('next', default='/'),
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next=self.get_argument('next', default='/'),
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read_only=self.read_only,
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read_only=self.read_only,
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message=message
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message=message
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)
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)
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def get(self):
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def get(self):
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self._render()
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self._render()
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def post(self):
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def post(self):
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pwd = self.get_argument('password', default=u'')
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pwd = self.get_argument('password', default=u'')
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if self.application.password:
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if self.application.password:
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if passwd_check(self.application.password, pwd):
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if passwd_check(self.application.password, pwd):
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self.set_secure_cookie('username', str(uuid.uuid4()))
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self.set_secure_cookie('username', str(uuid.uuid4()))
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else:
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else:
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self._render(message='Invalid password')
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self._render(message='Invalid password')
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return
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return
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self.redirect(self.get_argument('next', default='/'))
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self.redirect(self.get_argument('next', default='/'))
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class NewHandler(AuthenticatedHandler):
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class NewHandler(AuthenticatedHandler):
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@web.authenticated
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@web.authenticated
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|
def get(self):
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202
|
def get(self):
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196
|
nbm = self.application.notebook_manager
|
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203
|
nbm = self.application.notebook_manager
|
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197
|
project = nbm.notebook_dir
|
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204
|
project = nbm.notebook_dir
|
|
198
|
notebook_id = nbm.new_notebook()
|
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205
|
notebook_id = nbm.new_notebook()
|
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199
|
self.render(
|
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206
|
self.render(
|
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200
|
'notebook.html', project=project,
|
|
207
|
'notebook.html', project=project,
|
|
201
|
notebook_id=notebook_id,
|
|
208
|
notebook_id=notebook_id,
|
|
202
|
base_project_url=u'/', base_kernel_url=u'/',
|
|
209
|
base_project_url=u'/', base_kernel_url=u'/',
|
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203
|
kill_kernel=False,
|
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210
|
kill_kernel=False,
|
|
204
|
read_only=False,
|
|
211
|
read_only=False,
|
|
205
|
)
|
|
212
|
)
|
|
206
|
|
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213
|
|
|
207
|
|
|
214
|
|
|
208
|
class NamedNotebookHandler(AuthenticatedHandler):
|
|
215
|
class NamedNotebookHandler(AuthenticatedHandler):
|
|
209
|
|
|
216
|
|
|
210
|
@authenticate_unless_readonly
|
|
217
|
@authenticate_unless_readonly
|
|
211
|
def get(self, notebook_id):
|
|
218
|
def get(self, notebook_id):
|
|
212
|
nbm = self.application.notebook_manager
|
|
219
|
nbm = self.application.notebook_manager
|
|
213
|
project = nbm.notebook_dir
|
|
220
|
project = nbm.notebook_dir
|
|
214
|
if not nbm.notebook_exists(notebook_id):
|
|
221
|
if not nbm.notebook_exists(notebook_id):
|
|
215
|
raise web.HTTPError(404, u'Notebook does not exist: %s' % notebook_id)
|
|
222
|
raise web.HTTPError(404, u'Notebook does not exist: %s' % notebook_id)
|
|
216
|
|
|
223
|
|
|
217
|
self.render(
|
|
224
|
self.render(
|
|
218
|
'notebook.html', project=project,
|
|
225
|
'notebook.html', project=project,
|
|
219
|
notebook_id=notebook_id,
|
|
226
|
notebook_id=notebook_id,
|
|
220
|
base_project_url=u'/', base_kernel_url=u'/',
|
|
227
|
base_project_url=u'/', base_kernel_url=u'/',
|
|
221
|
kill_kernel=False,
|
|
228
|
kill_kernel=False,
|
|
222
|
read_only=self.read_only,
|
|
229
|
read_only=self.read_only,
|
|
223
|
)
|
|
230
|
)
|
|
224
|
|
|
231
|
|
|
225
|
|
|
232
|
|
|
226
|
#-----------------------------------------------------------------------------
|
|
233
|
#-----------------------------------------------------------------------------
|
|
227
|
# Kernel handlers
|
|
234
|
# Kernel handlers
|
|
228
|
#-----------------------------------------------------------------------------
|
|
235
|
#-----------------------------------------------------------------------------
|
|
229
|
|
|
236
|
|
|
230
|
|
|
237
|
|
|
231
|
class MainKernelHandler(AuthenticatedHandler):
|
|
238
|
class MainKernelHandler(AuthenticatedHandler):
|
|
232
|
|
|
239
|
|
|
233
|
@web.authenticated
|
|
240
|
@web.authenticated
|
|
234
|
def get(self):
|
|
241
|
def get(self):
|
|
235
|
km = self.application.kernel_manager
|
|
242
|
km = self.application.kernel_manager
|
|
236
|
self.finish(jsonapi.dumps(km.kernel_ids))
|
|
243
|
self.finish(jsonapi.dumps(km.kernel_ids))
|
|
237
|
|
|
244
|
|
|
238
|
@web.authenticated
|
|
245
|
@web.authenticated
|
|
239
|
def post(self):
|
|
246
|
def post(self):
|
|
240
|
km = self.application.kernel_manager
|
|
247
|
km = self.application.kernel_manager
|
|
241
|
notebook_id = self.get_argument('notebook', default=None)
|
|
248
|
notebook_id = self.get_argument('notebook', default=None)
|
|
242
|
kernel_id = km.start_kernel(notebook_id)
|
|
249
|
kernel_id = km.start_kernel(notebook_id)
|
|
243
|
data = {'ws_url':self.ws_url,'kernel_id':kernel_id}
|
|
250
|
data = {'ws_url':self.ws_url,'kernel_id':kernel_id}
|
|
244
|
self.set_header('Location', '/'+kernel_id)
|
|
251
|
self.set_header('Location', '/'+kernel_id)
|
|
245
|
self.finish(jsonapi.dumps(data))
|
|
252
|
self.finish(jsonapi.dumps(data))
|
|
246
|
|
|
253
|
|
|
247
|
|
|
254
|
|
|
248
|
class KernelHandler(AuthenticatedHandler):
|
|
255
|
class KernelHandler(AuthenticatedHandler):
|
|
249
|
|
|
256
|
|
|
250
|
SUPPORTED_METHODS = ('DELETE')
|
|
257
|
SUPPORTED_METHODS = ('DELETE')
|
|
251
|
|
|
258
|
|
|
252
|
@web.authenticated
|
|
259
|
@web.authenticated
|
|
253
|
def delete(self, kernel_id):
|
|
260
|
def delete(self, kernel_id):
|
|
254
|
km = self.application.kernel_manager
|
|
261
|
km = self.application.kernel_manager
|
|
255
|
km.kill_kernel(kernel_id)
|
|
262
|
km.kill_kernel(kernel_id)
|
|
256
|
self.set_status(204)
|
|
263
|
self.set_status(204)
|
|
257
|
self.finish()
|
|
264
|
self.finish()
|
|
258
|
|
|
265
|
|
|
259
|
|
|
266
|
|
|
260
|
class KernelActionHandler(AuthenticatedHandler):
|
|
267
|
class KernelActionHandler(AuthenticatedHandler):
|
|
261
|
|
|
268
|
|
|
262
|
@web.authenticated
|
|
269
|
@web.authenticated
|
|
263
|
def post(self, kernel_id, action):
|
|
270
|
def post(self, kernel_id, action):
|
|
264
|
km = self.application.kernel_manager
|
|
271
|
km = self.application.kernel_manager
|
|
265
|
if action == 'interrupt':
|
|
272
|
if action == 'interrupt':
|
|
266
|
km.interrupt_kernel(kernel_id)
|
|
273
|
km.interrupt_kernel(kernel_id)
|
|
267
|
self.set_status(204)
|
|
274
|
self.set_status(204)
|
|
268
|
if action == 'restart':
|
|
275
|
if action == 'restart':
|
|
269
|
new_kernel_id = km.restart_kernel(kernel_id)
|
|
276
|
new_kernel_id = km.restart_kernel(kernel_id)
|
|
270
|
data = {'ws_url':self.ws_url,'kernel_id':new_kernel_id}
|
|
277
|
data = {'ws_url':self.ws_url,'kernel_id':new_kernel_id}
|
|
271
|
self.set_header('Location', '/'+new_kernel_id)
|
|
278
|
self.set_header('Location', '/'+new_kernel_id)
|
|
272
|
self.write(jsonapi.dumps(data))
|
|
279
|
self.write(jsonapi.dumps(data))
|
|
273
|
self.finish()
|
|
280
|
self.finish()
|
|
274
|
|
|
281
|
|
|
275
|
|
|
282
|
|
|
276
|
class ZMQStreamHandler(websocket.WebSocketHandler):
|
|
283
|
class ZMQStreamHandler(websocket.WebSocketHandler):
|
|
277
|
|
|
284
|
|
|
278
|
def _reserialize_reply(self, msg_list):
|
|
285
|
def _reserialize_reply(self, msg_list):
|
|
279
|
"""Reserialize a reply message using JSON.
|
|
286
|
"""Reserialize a reply message using JSON.
|
|
280
|
|
|
287
|
|
|
281
|
This takes the msg list from the ZMQ socket, unserializes it using
|
|
288
|
This takes the msg list from the ZMQ socket, unserializes it using
|
|
282
|
self.session and then serializes the result using JSON. This method
|
|
289
|
self.session and then serializes the result using JSON. This method
|
|
283
|
should be used by self._on_zmq_reply to build messages that can
|
|
290
|
should be used by self._on_zmq_reply to build messages that can
|
|
284
|
be sent back to the browser.
|
|
291
|
be sent back to the browser.
|
|
285
|
"""
|
|
292
|
"""
|
|
286
|
idents, msg_list = self.session.feed_identities(msg_list)
|
|
293
|
idents, msg_list = self.session.feed_identities(msg_list)
|
|
287
|
msg = self.session.unserialize(msg_list)
|
|
294
|
msg = self.session.unserialize(msg_list)
|
|
288
|
try:
|
|
295
|
try:
|
|
289
|
msg['header'].pop('date')
|
|
296
|
msg['header'].pop('date')
|
|
290
|
except KeyError:
|
|
297
|
except KeyError:
|
|
291
|
pass
|
|
298
|
pass
|
|
292
|
try:
|
|
299
|
try:
|
|
293
|
msg['parent_header'].pop('date')
|
|
300
|
msg['parent_header'].pop('date')
|
|
294
|
except KeyError:
|
|
301
|
except KeyError:
|
|
295
|
pass
|
|
302
|
pass
|
|
296
|
msg.pop('buffers')
|
|
303
|
msg.pop('buffers')
|
|
297
|
return jsonapi.dumps(msg)
|
|
304
|
return jsonapi.dumps(msg)
|
|
298
|
|
|
305
|
|
|
299
|
def _on_zmq_reply(self, msg_list):
|
|
306
|
def _on_zmq_reply(self, msg_list):
|
|
300
|
try:
|
|
307
|
try:
|
|
301
|
msg = self._reserialize_reply(msg_list)
|
|
308
|
msg = self._reserialize_reply(msg_list)
|
|
302
|
except:
|
|
309
|
except:
|
|
303
|
self.application.log.critical("Malformed message: %r" % msg_list)
|
|
310
|
self.application.log.critical("Malformed message: %r" % msg_list)
|
|
304
|
else:
|
|
311
|
else:
|
|
305
|
self.write_message(msg)
|
|
312
|
self.write_message(msg)
|
|
306
|
|
|
313
|
|
|
307
|
|
|
314
|
|
|
308
|
class AuthenticatedZMQStreamHandler(ZMQStreamHandler):
|
|
315
|
class AuthenticatedZMQStreamHandler(ZMQStreamHandler):
|
|
309
|
|
|
316
|
|
|
310
|
def open(self, kernel_id):
|
|
317
|
def open(self, kernel_id):
|
|
311
|
self.kernel_id = kernel_id.decode('ascii')
|
|
318
|
self.kernel_id = kernel_id.decode('ascii')
|
|
312
|
try:
|
|
319
|
try:
|
|
313
|
cfg = self.application.ipython_app.config
|
|
320
|
cfg = self.application.ipython_app.config
|
|
314
|
except AttributeError:
|
|
321
|
except AttributeError:
|
|
315
|
# protect from the case where this is run from something other than
|
|
322
|
# protect from the case where this is run from something other than
|
|
316
|
# the notebook app:
|
|
323
|
# the notebook app:
|
|
317
|
cfg = None
|
|
324
|
cfg = None
|
|
318
|
self.session = Session(config=cfg)
|
|
325
|
self.session = Session(config=cfg)
|
|
319
|
self.save_on_message = self.on_message
|
|
326
|
self.save_on_message = self.on_message
|
|
320
|
self.on_message = self.on_first_message
|
|
327
|
self.on_message = self.on_first_message
|
|
321
|
|
|
328
|
|
|
322
|
def get_current_user(self):
|
|
329
|
def get_current_user(self):
|
|
323
|
user_id = self.get_secure_cookie("username")
|
|
330
|
user_id = self.get_secure_cookie("username")
|
|
324
|
if user_id == '' or (user_id is None and not self.application.password):
|
|
331
|
if user_id == '' or (user_id is None and not self.application.password):
|
|
325
|
user_id = 'anonymous'
|
|
332
|
user_id = 'anonymous'
|
|
326
|
return user_id
|
|
333
|
return user_id
|
|
327
|
|
|
334
|
|
|
328
|
def _inject_cookie_message(self, msg):
|
|
335
|
def _inject_cookie_message(self, msg):
|
|
329
|
"""Inject the first message, which is the document cookie,
|
|
336
|
"""Inject the first message, which is the document cookie,
|
|
330
|
for authentication."""
|
|
337
|
for authentication."""
|
|
331
|
if isinstance(msg, unicode):
|
|
338
|
if isinstance(msg, unicode):
|
|
332
|
# Cookie can't constructor doesn't accept unicode strings for some reason
|
|
339
|
# Cookie can't constructor doesn't accept unicode strings for some reason
|
|
333
|
msg = msg.encode('utf8', 'replace')
|
|
340
|
msg = msg.encode('utf8', 'replace')
|
|
334
|
try:
|
|
341
|
try:
|
|
335
|
self.request._cookies = Cookie.SimpleCookie(msg)
|
|
342
|
self.request._cookies = Cookie.SimpleCookie(msg)
|
|
336
|
except:
|
|
343
|
except:
|
|
337
|
logging.warn("couldn't parse cookie string: %s",msg, exc_info=True)
|
|
344
|
logging.warn("couldn't parse cookie string: %s",msg, exc_info=True)
|
|
338
|
|
|
345
|
|
|
339
|
def on_first_message(self, msg):
|
|
346
|
def on_first_message(self, msg):
|
|
340
|
self._inject_cookie_message(msg)
|
|
347
|
self._inject_cookie_message(msg)
|
|
341
|
if self.get_current_user() is None:
|
|
348
|
if self.get_current_user() is None:
|
|
342
|
logging.warn("Couldn't authenticate WebSocket connection")
|
|
349
|
logging.warn("Couldn't authenticate WebSocket connection")
|
|
343
|
raise web.HTTPError(403)
|
|
350
|
raise web.HTTPError(403)
|
|
344
|
self.on_message = self.save_on_message
|
|
351
|
self.on_message = self.save_on_message
|
|
345
|
|
|
352
|
|
|
346
|
|
|
353
|
|
|
347
|
class IOPubHandler(AuthenticatedZMQStreamHandler):
|
|
354
|
class IOPubHandler(AuthenticatedZMQStreamHandler):
|
|
348
|
|
|
355
|
|
|
349
|
def initialize(self, *args, **kwargs):
|
|
356
|
def initialize(self, *args, **kwargs):
|
|
350
|
self._kernel_alive = True
|
|
357
|
self._kernel_alive = True
|
|
351
|
self._beating = False
|
|
358
|
self._beating = False
|
|
352
|
self.iopub_stream = None
|
|
359
|
self.iopub_stream = None
|
|
353
|
self.hb_stream = None
|
|
360
|
self.hb_stream = None
|
|
354
|
|
|
361
|
|
|
355
|
def on_first_message(self, msg):
|
|
362
|
def on_first_message(self, msg):
|
|
356
|
try:
|
|
363
|
try:
|
|
357
|
super(IOPubHandler, self).on_first_message(msg)
|
|
364
|
super(IOPubHandler, self).on_first_message(msg)
|
|
358
|
except web.HTTPError:
|
|
365
|
except web.HTTPError:
|
|
359
|
self.close()
|
|
366
|
self.close()
|
|
360
|
return
|
|
367
|
return
|
|
361
|
km = self.application.kernel_manager
|
|
368
|
km = self.application.kernel_manager
|
|
362
|
self.time_to_dead = km.time_to_dead
|
|
369
|
self.time_to_dead = km.time_to_dead
|
|
363
|
kernel_id = self.kernel_id
|
|
370
|
kernel_id = self.kernel_id
|
|
364
|
try:
|
|
371
|
try:
|
|
365
|
self.iopub_stream = km.create_iopub_stream(kernel_id)
|
|
372
|
self.iopub_stream = km.create_iopub_stream(kernel_id)
|
|
366
|
self.hb_stream = km.create_hb_stream(kernel_id)
|
|
373
|
self.hb_stream = km.create_hb_stream(kernel_id)
|
|
367
|
except web.HTTPError:
|
|
374
|
except web.HTTPError:
|
|
368
|
# WebSockets don't response to traditional error codes so we
|
|
375
|
# WebSockets don't response to traditional error codes so we
|
|
369
|
# close the connection.
|
|
376
|
# close the connection.
|
|
370
|
if not self.stream.closed():
|
|
377
|
if not self.stream.closed():
|
|
371
|
self.stream.close()
|
|
378
|
self.stream.close()
|
|
372
|
self.close()
|
|
379
|
self.close()
|
|
373
|
else:
|
|
380
|
else:
|
|
374
|
self.iopub_stream.on_recv(self._on_zmq_reply)
|
|
381
|
self.iopub_stream.on_recv(self._on_zmq_reply)
|
|
375
|
self.start_hb(self.kernel_died)
|
|
382
|
self.start_hb(self.kernel_died)
|
|
376
|
|
|
383
|
|
|
377
|
def on_message(self, msg):
|
|
384
|
def on_message(self, msg):
|
|
378
|
pass
|
|
385
|
pass
|
|
379
|
|
|
386
|
|
|
380
|
def on_close(self):
|
|
387
|
def on_close(self):
|
|
381
|
# This method can be called twice, once by self.kernel_died and once
|
|
388
|
# This method can be called twice, once by self.kernel_died and once
|
|
382
|
# from the WebSocket close event. If the WebSocket connection is
|
|
389
|
# from the WebSocket close event. If the WebSocket connection is
|
|
383
|
# closed before the ZMQ streams are setup, they could be None.
|
|
390
|
# closed before the ZMQ streams are setup, they could be None.
|
|
384
|
self.stop_hb()
|
|
391
|
self.stop_hb()
|
|
385
|
if self.iopub_stream is not None and not self.iopub_stream.closed():
|
|
392
|
if self.iopub_stream is not None and not self.iopub_stream.closed():
|
|
386
|
self.iopub_stream.on_recv(None)
|
|
393
|
self.iopub_stream.on_recv(None)
|
|
387
|
self.iopub_stream.close()
|
|
394
|
self.iopub_stream.close()
|
|
388
|
if self.hb_stream is not None and not self.hb_stream.closed():
|
|
395
|
if self.hb_stream is not None and not self.hb_stream.closed():
|
|
389
|
self.hb_stream.close()
|
|
396
|
self.hb_stream.close()
|
|
390
|
|
|
397
|
|
|
391
|
def start_hb(self, callback):
|
|
398
|
def start_hb(self, callback):
|
|
392
|
"""Start the heartbeating and call the callback if the kernel dies."""
|
|
399
|
"""Start the heartbeating and call the callback if the kernel dies."""
|
|
393
|
if not self._beating:
|
|
400
|
if not self._beating:
|
|
394
|
self._kernel_alive = True
|
|
401
|
self._kernel_alive = True
|
|
395
|
|
|
402
|
|
|
396
|
def ping_or_dead():
|
|
403
|
def ping_or_dead():
|
|
397
|
if self._kernel_alive:
|
|
404
|
if self._kernel_alive:
|
|
398
|
self._kernel_alive = False
|
|
405
|
self._kernel_alive = False
|
|
399
|
self.hb_stream.send(b'ping')
|
|
406
|
self.hb_stream.send(b'ping')
|
|
400
|
else:
|
|
407
|
else:
|
|
401
|
try:
|
|
408
|
try:
|
|
402
|
callback()
|
|
409
|
callback()
|
|
403
|
except:
|
|
410
|
except:
|
|
404
|
pass
|
|
411
|
pass
|
|
405
|
finally:
|
|
412
|
finally:
|
|
406
|
self._hb_periodic_callback.stop()
|
|
413
|
self._hb_periodic_callback.stop()
|
|
407
|
|
|
414
|
|
|
408
|
def beat_received(msg):
|
|
415
|
def beat_received(msg):
|
|
409
|
self._kernel_alive = True
|
|
416
|
self._kernel_alive = True
|
|
410
|
|
|
417
|
|
|
411
|
self.hb_stream.on_recv(beat_received)
|
|
418
|
self.hb_stream.on_recv(beat_received)
|
|
412
|
self._hb_periodic_callback = ioloop.PeriodicCallback(ping_or_dead, self.time_to_dead*1000)
|
|
419
|
self._hb_periodic_callback = ioloop.PeriodicCallback(ping_or_dead, self.time_to_dead*1000)
|
|
413
|
self._hb_periodic_callback.start()
|
|
420
|
self._hb_periodic_callback.start()
|
|
414
|
self._beating= True
|
|
421
|
self._beating= True
|
|
415
|
|
|
422
|
|
|
416
|
def stop_hb(self):
|
|
423
|
def stop_hb(self):
|
|
417
|
"""Stop the heartbeating and cancel all related callbacks."""
|
|
424
|
"""Stop the heartbeating and cancel all related callbacks."""
|
|
418
|
if self._beating:
|
|
425
|
if self._beating:
|
|
419
|
self._hb_periodic_callback.stop()
|
|
426
|
self._hb_periodic_callback.stop()
|
|
420
|
if not self.hb_stream.closed():
|
|
427
|
if not self.hb_stream.closed():
|
|
421
|
self.hb_stream.on_recv(None)
|
|
428
|
self.hb_stream.on_recv(None)
|
|
422
|
|
|
429
|
|
|
423
|
def kernel_died(self):
|
|
430
|
def kernel_died(self):
|
|
424
|
self.application.kernel_manager.delete_mapping_for_kernel(self.kernel_id)
|
|
431
|
self.application.kernel_manager.delete_mapping_for_kernel(self.kernel_id)
|
|
425
|
self.write_message(
|
|
432
|
self.write_message(
|
|
426
|
{'header': {'msg_type': 'status'},
|
|
433
|
{'header': {'msg_type': 'status'},
|
|
427
|
'parent_header': {},
|
|
434
|
'parent_header': {},
|
|
428
|
'content': {'execution_state':'dead'}
|
|
435
|
'content': {'execution_state':'dead'}
|
|
429
|
}
|
|
436
|
}
|
|
430
|
)
|
|
437
|
)
|
|
431
|
self.on_close()
|
|
438
|
self.on_close()
|
|
432
|
|
|
439
|
|
|
433
|
|
|
440
|
|
|
434
|
class ShellHandler(AuthenticatedZMQStreamHandler):
|
|
441
|
class ShellHandler(AuthenticatedZMQStreamHandler):
|
|
435
|
|
|
442
|
|
|
436
|
def initialize(self, *args, **kwargs):
|
|
443
|
def initialize(self, *args, **kwargs):
|
|
437
|
self.shell_stream = None
|
|
444
|
self.shell_stream = None
|
|
438
|
|
|
445
|
|
|
439
|
def on_first_message(self, msg):
|
|
446
|
def on_first_message(self, msg):
|
|
440
|
try:
|
|
447
|
try:
|
|
441
|
super(ShellHandler, self).on_first_message(msg)
|
|
448
|
super(ShellHandler, self).on_first_message(msg)
|
|
442
|
except web.HTTPError:
|
|
449
|
except web.HTTPError:
|
|
443
|
self.close()
|
|
450
|
self.close()
|
|
444
|
return
|
|
451
|
return
|
|
445
|
km = self.application.kernel_manager
|
|
452
|
km = self.application.kernel_manager
|
|
446
|
self.max_msg_size = km.max_msg_size
|
|
453
|
self.max_msg_size = km.max_msg_size
|
|
447
|
kernel_id = self.kernel_id
|
|
454
|
kernel_id = self.kernel_id
|
|
448
|
try:
|
|
455
|
try:
|
|
449
|
self.shell_stream = km.create_shell_stream(kernel_id)
|
|
456
|
self.shell_stream = km.create_shell_stream(kernel_id)
|
|
450
|
except web.HTTPError:
|
|
457
|
except web.HTTPError:
|
|
451
|
# WebSockets don't response to traditional error codes so we
|
|
458
|
# WebSockets don't response to traditional error codes so we
|
|
452
|
# close the connection.
|
|
459
|
# close the connection.
|
|
453
|
if not self.stream.closed():
|
|
460
|
if not self.stream.closed():
|
|
454
|
self.stream.close()
|
|
461
|
self.stream.close()
|
|
455
|
self.close()
|
|
462
|
self.close()
|
|
456
|
else:
|
|
463
|
else:
|
|
457
|
self.shell_stream.on_recv(self._on_zmq_reply)
|
|
464
|
self.shell_stream.on_recv(self._on_zmq_reply)
|
|
458
|
|
|
465
|
|
|
459
|
def on_message(self, msg):
|
|
466
|
def on_message(self, msg):
|
|
460
|
if len(msg) < self.max_msg_size:
|
|
467
|
if len(msg) < self.max_msg_size:
|
|
461
|
msg = jsonapi.loads(msg)
|
|
468
|
msg = jsonapi.loads(msg)
|
|
462
|
self.session.send(self.shell_stream, msg)
|
|
469
|
self.session.send(self.shell_stream, msg)
|
|
463
|
|
|
470
|
|
|
464
|
def on_close(self):
|
|
471
|
def on_close(self):
|
|
465
|
# Make sure the stream exists and is not already closed.
|
|
472
|
# Make sure the stream exists and is not already closed.
|
|
466
|
if self.shell_stream is not None and not self.shell_stream.closed():
|
|
473
|
if self.shell_stream is not None and not self.shell_stream.closed():
|
|
467
|
self.shell_stream.close()
|
|
474
|
self.shell_stream.close()
|
|
468
|
|
|
475
|
|
|
469
|
|
|
476
|
|
|
470
|
#-----------------------------------------------------------------------------
|
|
477
|
#-----------------------------------------------------------------------------
|
|
471
|
# Notebook web service handlers
|
|
478
|
# Notebook web service handlers
|
|
472
|
#-----------------------------------------------------------------------------
|
|
479
|
#-----------------------------------------------------------------------------
|
|
473
|
|
|
480
|
|
|
474
|
class NotebookRootHandler(AuthenticatedHandler):
|
|
481
|
class NotebookRootHandler(AuthenticatedHandler):
|
|
475
|
|
|
482
|
|
|
476
|
@authenticate_unless_readonly
|
|
483
|
@authenticate_unless_readonly
|
|
477
|
def get(self):
|
|
484
|
def get(self):
|
|
478
|
|
|
485
|
|
|
479
|
nbm = self.application.notebook_manager
|
|
486
|
nbm = self.application.notebook_manager
|
|
480
|
files = nbm.list_notebooks()
|
|
487
|
files = nbm.list_notebooks()
|
|
481
|
self.finish(jsonapi.dumps(files))
|
|
488
|
self.finish(jsonapi.dumps(files))
|
|
482
|
|
|
489
|
|
|
483
|
@web.authenticated
|
|
490
|
@web.authenticated
|
|
484
|
def post(self):
|
|
491
|
def post(self):
|
|
485
|
nbm = self.application.notebook_manager
|
|
492
|
nbm = self.application.notebook_manager
|
|
486
|
body = self.request.body.strip()
|
|
493
|
body = self.request.body.strip()
|
|
487
|
format = self.get_argument('format', default='json')
|
|
494
|
format = self.get_argument('format', default='json')
|
|
488
|
name = self.get_argument('name', default=None)
|
|
495
|
name = self.get_argument('name', default=None)
|
|
489
|
if body:
|
|
496
|
if body:
|
|
490
|
notebook_id = nbm.save_new_notebook(body, name=name, format=format)
|
|
497
|
notebook_id = nbm.save_new_notebook(body, name=name, format=format)
|
|
491
|
else:
|
|
498
|
else:
|
|
492
|
notebook_id = nbm.new_notebook()
|
|
499
|
notebook_id = nbm.new_notebook()
|
|
493
|
self.set_header('Location', '/'+notebook_id)
|
|
500
|
self.set_header('Location', '/'+notebook_id)
|
|
494
|
self.finish(jsonapi.dumps(notebook_id))
|
|
501
|
self.finish(jsonapi.dumps(notebook_id))
|
|
495
|
|
|
502
|
|
|
496
|
|
|
503
|
|
|
497
|
class NotebookHandler(AuthenticatedHandler):
|
|
504
|
class NotebookHandler(AuthenticatedHandler):
|
|
498
|
|
|
505
|
|
|
499
|
SUPPORTED_METHODS = ('GET', 'PUT', 'DELETE')
|
|
506
|
SUPPORTED_METHODS = ('GET', 'PUT', 'DELETE')
|
|
500
|
|
|
507
|
|
|
501
|
@authenticate_unless_readonly
|
|
508
|
@authenticate_unless_readonly
|
|
502
|
def get(self, notebook_id):
|
|
509
|
def get(self, notebook_id):
|
|
503
|
nbm = self.application.notebook_manager
|
|
510
|
nbm = self.application.notebook_manager
|
|
504
|
format = self.get_argument('format', default='json')
|
|
511
|
format = self.get_argument('format', default='json')
|
|
505
|
last_mod, name, data = nbm.get_notebook(notebook_id, format)
|
|
512
|
last_mod, name, data = nbm.get_notebook(notebook_id, format)
|
|
506
|
|
|
513
|
|
|
507
|
if format == u'json':
|
|
514
|
if format == u'json':
|
|
508
|
self.set_header('Content-Type', 'application/json')
|
|
515
|
self.set_header('Content-Type', 'application/json')
|
|
509
|
self.set_header('Content-Disposition','attachment; filename="%s.ipynb"' % name)
|
|
516
|
self.set_header('Content-Disposition','attachment; filename="%s.ipynb"' % name)
|
|
510
|
elif format == u'py':
|
|
517
|
elif format == u'py':
|
|
511
|
self.set_header('Content-Type', 'application/x-python')
|
|
518
|
self.set_header('Content-Type', 'application/x-python')
|
|
512
|
self.set_header('Content-Disposition','attachment; filename="%s.py"' % name)
|
|
519
|
self.set_header('Content-Disposition','attachment; filename="%s.py"' % name)
|
|
513
|
self.set_header('Last-Modified', last_mod)
|
|
520
|
self.set_header('Last-Modified', last_mod)
|
|
514
|
self.finish(data)
|
|
521
|
self.finish(data)
|
|
515
|
|
|
522
|
|
|
516
|
@web.authenticated
|
|
523
|
@web.authenticated
|
|
517
|
def put(self, notebook_id):
|
|
524
|
def put(self, notebook_id):
|
|
518
|
nbm = self.application.notebook_manager
|
|
525
|
nbm = self.application.notebook_manager
|
|
519
|
format = self.get_argument('format', default='json')
|
|
526
|
format = self.get_argument('format', default='json')
|
|
520
|
name = self.get_argument('name', default=None)
|
|
527
|
name = self.get_argument('name', default=None)
|
|
521
|
nbm.save_notebook(notebook_id, self.request.body, name=name, format=format)
|
|
528
|
nbm.save_notebook(notebook_id, self.request.body, name=name, format=format)
|
|
522
|
self.set_status(204)
|
|
529
|
self.set_status(204)
|
|
523
|
self.finish()
|
|
530
|
self.finish()
|
|
524
|
|
|
531
|
|
|
525
|
@web.authenticated
|
|
532
|
@web.authenticated
|
|
526
|
def delete(self, notebook_id):
|
|
533
|
def delete(self, notebook_id):
|
|
527
|
nbm = self.application.notebook_manager
|
|
534
|
nbm = self.application.notebook_manager
|
|
528
|
nbm.delete_notebook(notebook_id)
|
|
535
|
nbm.delete_notebook(notebook_id)
|
|
529
|
self.set_status(204)
|
|
536
|
self.set_status(204)
|
|
530
|
self.finish()
|
|
537
|
self.finish()
|
|
531
|
|
|
538
|
|
|
532
|
#-----------------------------------------------------------------------------
|
|
539
|
#-----------------------------------------------------------------------------
|
|
533
|
# RST web service handlers
|
|
540
|
# RST web service handlers
|
|
534
|
#-----------------------------------------------------------------------------
|
|
541
|
#-----------------------------------------------------------------------------
|
|
535
|
|
|
542
|
|
|
536
|
|
|
543
|
|
|
537
|
class RSTHandler(AuthenticatedHandler):
|
|
544
|
class RSTHandler(AuthenticatedHandler):
|
|
538
|
|
|
545
|
|
|
539
|
@web.authenticated
|
|
546
|
@web.authenticated
|
|
540
|
def post(self):
|
|
547
|
def post(self):
|
|
541
|
if publish_string is None:
|
|
548
|
if publish_string is None:
|
|
542
|
raise web.HTTPError(503, u'docutils not available')
|
|
549
|
raise web.HTTPError(503, u'docutils not available')
|
|
543
|
body = self.request.body.strip()
|
|
550
|
body = self.request.body.strip()
|
|
544
|
source = body
|
|
551
|
source = body
|
|
545
|
# template_path=os.path.join(os.path.dirname(__file__), u'templates', u'rst_template.html')
|
|
552
|
# template_path=os.path.join(os.path.dirname(__file__), u'templates', u'rst_template.html')
|
|
546
|
defaults = {'file_insertion_enabled': 0,
|
|
553
|
defaults = {'file_insertion_enabled': 0,
|
|
547
|
'raw_enabled': 0,
|
|
554
|
'raw_enabled': 0,
|
|
548
|
'_disable_config': 1,
|
|
555
|
'_disable_config': 1,
|
|
549
|
'stylesheet_path': 0
|
|
556
|
'stylesheet_path': 0
|
|
550
|
# 'template': template_path
|
|
557
|
# 'template': template_path
|
|
551
|
}
|
|
558
|
}
|
|
552
|
try:
|
|
559
|
try:
|
|
553
|
html = publish_string(source, writer_name='html',
|
|
560
|
html = publish_string(source, writer_name='html',
|
|
554
|
settings_overrides=defaults
|
|
561
|
settings_overrides=defaults
|
|
555
|
)
|
|
562
|
)
|
|
556
|
except:
|
|
563
|
except:
|
|
557
|
raise web.HTTPError(400, u'Invalid RST')
|
|
564
|
raise web.HTTPError(400, u'Invalid RST')
|
|
558
|
print html
|
|
565
|
print html
|
|
559
|
self.set_header('Content-Type', 'text/html')
|
|
566
|
self.set_header('Content-Type', 'text/html')
|
|
560
|
self.finish(html)
|
|
567
|
self.finish(html)
|
|
561
|
|
|
568
|
|
|
562
|
|
|
569
|
|