`nbdiff-web` gives error `Exception: You must define the 'login_url' setting in your application to use @tornado.web.authenticated`` #749

this-josh · 2024-03-11T09:44:50Z

I have created a clean conda 3.12.2 env and installed nbdime==4.0.1.

I have then created a clean git repo, a and committed a notebook called a.ipynb. Now, after changing the notebook and running nbdiff-web a.ipynb

I get the error

[I nbdimeserver:430] Listening on 127.0.0.1, port 58036
[I webutil:29] URL: http://127.0.0.1:58036/difftool
[E web:1875] Uncaught exception GET /difftool (127.0.0.1)
HTTPServerRequest(protocol='http', host='127.0.0.1:58036', method='GET', uri='/difftool', version='HTTP/1.1', remote_ip='127.0.0.1')
Traceback (most recent call last):
  File "/private/tmp/.venv/lib/python3.12/site-packages/tornado/web.py", line 1769, in _execute
    result = await result  # type: ignore
             ^^^^^^^^^^^^
  File "/private/tmp/.venv/lib/python3.12/site-packages/jupyter_server/base/handlers.py", line 642, in prepare
    return web.authenticated(lambda _: super().prepare())(self)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/private/tmp/.venv/lib/python3.12/site-packages/tornado/web.py", line 3289, in wrapper
    url = self.get_login_url()
          ^^^^^^^^^^^^^^^^^^^^
  File "/private/tmp/.venv/lib/python3.12/site-packages/tornado/web.py", line 1443, in get_login_url
    self.require_setting("login_url", "@tornado.web.authenticated")
  File "/private/tmp/.venv/lib/python3.12/site-packages/tornado/web.py", line 1673, in require_setting
    raise Exception(
Exception: You must define the 'login_url' setting in your application to use @tornado.web.authenticated
[E web:1300] Uncaught exception in write_error
Traceback (most recent call last):
  File "/private/tmp/.venv/lib/python3.12/site-packages/tornado/web.py", line 1769, in _execute
    result = await result  # type: ignore
             ^^^^^^^^^^^^
  File "/private/tmp/.venv/lib/python3.12/site-packages/jupyter_server/base/handlers.py", line 642, in prepare
    return web.authenticated(lambda _: super().prepare())(self)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/private/tmp/.venv/lib/python3.12/site-packages/tornado/web.py", line 3289, in wrapper
    url = self.get_login_url()
          ^^^^^^^^^^^^^^^^^^^^
  File "/private/tmp/.venv/lib/python3.12/site-packages/tornado/web.py", line 1443, in get_login_url
    self.require_setting("login_url", "@tornado.web.authenticated")
  File "/private/tmp/.venv/lib/python3.12/site-packages/tornado/web.py", line 1673, in require_setting
    raise Exception(
Exception: You must define the 'login_url' setting in your application to use @tornado.web.authenticated

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/private/tmp/.venv/lib/python3.12/site-packages/jupyter_server/base/handlers.py", line 738, in write_error
    html = self.render_template("%s.html" % status_code, **ns)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/private/tmp/.venv/lib/python3.12/site-packages/jupyter_server/base/handlers.py", line 665, in render_template
    template = self.get_template(name)
               ^^^^^^^^^^^^^^^^^^^^^^^
  File "/private/tmp/.venv/lib/python3.12/site-packages/jupyter_server/base/handlers.py", line 660, in get_template
    return self.settings["jinja2_env"].get_template(name)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/private/tmp/.venv/lib/python3.12/site-packages/jinja2/environment.py", line 1010, in get_template
    return self._load_template(name, globals)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/private/tmp/.venv/lib/python3.12/site-packages/jinja2/environment.py", line 969, in _load_template
    template = self.loader.load(self, name, self.make_globals(globals))
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/private/tmp/.venv/lib/python3.12/site-packages/jinja2/loaders.py", line 125, in load
    source, filename, uptodate = self.get_source(environment, name)
                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/private/tmp/.venv/lib/python3.12/site-packages/jinja2/loaders.py", line 204, in get_source
    raise TemplateNotFound(template)
jinja2.exceptions.TemplateNotFound: 500.html

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/private/tmp/.venv/lib/python3.12/site-packages/tornado/web.py", line 1298, in send_error
    self.write_error(status_code, **kwargs)
  File "/private/tmp/.venv/lib/python3.12/site-packages/nbdime/webapp/nbdimeserver.py", line 68, in write_error
    return super(NbdimeHandler, self).write_error(status_code, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/private/tmp/.venv/lib/python3.12/site-packages/jupyter_server/base/handlers.py", line 740, in write_error
    html = self.render_template("error.html", **ns)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/private/tmp/.venv/lib/python3.12/site-packages/jupyter_server/base/handlers.py", line 665, in render_template
    template = self.get_template(name)
               ^^^^^^^^^^^^^^^^^^^^^^^
  File "/private/tmp/.venv/lib/python3.12/site-packages/jupyter_server/base/handlers.py", line 660, in get_template
    return self.settings["jinja2_env"].get_template(name)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/private/tmp/.venv/lib/python3.12/site-packages/jinja2/environment.py", line 1010, in get_template
    return self._load_template(name, globals)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/private/tmp/.venv/lib/python3.12/site-packages/jinja2/environment.py", line 969, in _load_template
    template = self.loader.load(self, name, self.make_globals(globals))
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/private/tmp/.venv/lib/python3.12/site-packages/jinja2/loaders.py", line 125, in load
    source, filename, uptodate = self.get_source(environment, name)
                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/private/tmp/.venv/lib/python3.12/site-packages/jinja2/loaders.py", line 204, in get_source
    raise TemplateNotFound(template)
jinja2.exceptions.TemplateNotFound: error.html
[E log:97] {
  "Host": "127.0.0.1:58036",
  "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7",
  "User-Agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36"
}
[E log:98] 500 GET /difftool (@127.0.0.1) 22.21ms referer=None
^CTraceback (most recent call last):
  File "/private/tmp/.venv/bin/nbdiff-web", line 8, in <module>
    sys.exit(main())
             ^^^^^^
  File "/private/tmp/.venv/lib/python3.12/site-packages/nbdime/webapp/nbdiffweb.py", line 96, in main
    return main_diff(opts)
           ^^^^^^^^^^^^^^^
  File "/private/tmp/.venv/lib/python3.12/site-packages/nbdime/webapp/nbdiffweb.py", line 82, in main_diff
    return handle_gitrefs(base, remote, path, opts)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/private/tmp/.venv/lib/python3.12/site-packages/nbdime/webapp/nbdiffweb.py", line 64, in handle_gitrefs
    status = run_server(
             ^^^^^^^^^^^
  File "/private/tmp/.venv/lib/python3.12/site-packages/nbdime/webapp/nbdimeserver.py", line 446, in main_server
    io_loop.start()
  File "/private/tmp/.venv/lib/python3.12/site-packages/tornado/platform/asyncio.py", line 205, in start
    self.asyncio_loop.run_forever()
  File "/private/tmp/.venv/lib/python3.12/asyncio/base_events.py", line 639, in run_forever
    self._run_once()
  File "/private/tmp/.venv/lib/python3.12/asyncio/base_events.py", line 1947, in _run_once
    event_list = self._selector.select(timeout)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/private/tmp/.venv/lib/python3.12/selectors.py", line 566, in select
    kev_list = self._selector.control(None, max_ev, timeout)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
KeyboardInterrupt

This is on macOS 14.3.1

The text was updated successfully, but these errors were encountered:

yan12125 · 2024-03-12T13:59:51Z

Seems related to the latest jupyter-server. I can get it working with pip install 'jupyter-server==2.12.5'.

edmundhenley-mo · 2024-03-12T14:11:20Z

Just encountered the same issue on Linux, updating an old conda env using nbdime==3.1.1 (which didn't exhibit this) to nbdime==4.0.1 (context: old nbdiff-web was stalling on a big notebook; I wanted to try a newer version post #400 to see if any better).

Had no luck trying to roll back nbdime version alone (when I tried, striding releases, confirmed issue present in nbdime versions [4.0.0, 3.2.1, <gave up>])

Gave up as I spotted jupyter-server/jupyter_server#1392 enabling authentication by default: pinning only jupyter_server to v2.12.5 (version just before that auth PR went in) seems to give a workaround for now (ha, you've just pipped me to post @yan12125!)

Info for reproducing @ nbdime==4.0.1 (incl. lockfile)

How I created the conda env exhibiting login_url error:

$ conda --version
conda 24.1.0
$ conda create --name nbdime nbdime jupyter

(not shown: my ~/.condarc enforces conda-forge channel)

Lockfile for reproducing:

(nbdime) $ conda list --explicit --md5 > ~/nbdime_gh749_loginurl.lock
(nbdime) $ cat ~/nbdime_gh749_loginurl.lock 
# This file may be used to create an environment using:
# $ conda create --name <env> --file <this file>
# platform: linux-64
@EXPLICIT
https://conda.anaconda.org/conda-forge/linux-64/_libgcc_mutex-0.1-conda_forge.tar.bz2#d7c89558ba9fa0495403155b64376d81
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https://conda.anaconda.org/conda-forge/linux-64/ld_impl_linux-64-2.40-h41732ed_0.conda#7aca3059a1729aa76c597603f10b0dd3
https://conda.anaconda.org/conda-forge/linux-64/libstdcxx-ng-13.2.0-h7e041cc_5.conda#f6f6600d18a4047b54f803cf708b868a
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https://conda.anaconda.org/conda-forge/noarch/tomli-2.0.1-pyhd8ed1ab_0.tar.bz2#5844808ffab9ebdb694585b50ba02a96
https://conda.anaconda.org/conda-forge/linux-64/tornado-6.4-py312h98912ed_0.conda#e8332e534dca8c5c12c8352e0a23501c
https://conda.anaconda.org/conda-forge/noarch/traitlets-5.14.1-pyhd8ed1ab_0.conda#1c6acfdc7ecbfe09954c4216da99c146
https://conda.anaconda.org/conda-forge/noarch/types-python-dateutil-2.8.19.20240311-pyhd8ed1ab_0.conda#bd1f4958ce0d78874e98f6b28e3da15e
https://conda.anaconda.org/conda-forge/noarch/typing_extensions-4.10.0-pyha770c72_0.conda#16ae769069b380646c47142d719ef466
https://conda.anaconda.org/conda-forge/noarch/typing_utils-0.1.0-pyhd8ed1ab_0.tar.bz2#eb67e3cace64c66233e2d35949e20f92
https://conda.anaconda.org/conda-forge/noarch/uri-template-1.3.0-pyhd8ed1ab_0.conda#0944dc65cb4a9b5b68522c3bb585d41c
https://conda.anaconda.org/conda-forge/noarch/wcwidth-0.2.13-pyhd8ed1ab_0.conda#68f0738df502a14213624b288c60c9ad
https://conda.anaconda.org/conda-forge/noarch/webcolors-1.13-pyhd8ed1ab_0.conda#166212fe82dad8735550030488a01d03
https://conda.anaconda.org/conda-forge/noarch/webencodings-0.5.1-pyhd8ed1ab_2.conda#daf5160ff9cde3a468556965329085b9
https://conda.anaconda.org/conda-forge/noarch/websocket-client-1.7.0-pyhd8ed1ab_0.conda#50ad31e07d706aae88b14a4ac9c73f23
https://conda.anaconda.org/conda-forge/noarch/wheel-0.42.0-pyhd8ed1ab_0.conda#1cdea58981c5cbc17b51973bcaddcea7
https://conda.anaconda.org/conda-forge/noarch/widgetsnbextension-4.0.10-pyhd8ed1ab_0.conda#521f489e3babeddeec638c2add7e9e64
https://conda.anaconda.org/conda-forge/noarch/zipp-3.17.0-pyhd8ed1ab_0.conda#2e4d6bc0b14e10f895fc6791a7d9b26a
https://conda.anaconda.org/conda-forge/noarch/anyio-4.3.0-pyhd8ed1ab_0.conda#ac95aa8ed65adfdde51132595c79aade
https://conda.anaconda.org/conda-forge/noarch/asttokens-2.4.1-pyhd8ed1ab_0.conda#5f25798dcefd8252ce5f9dc494d5f571
https://conda.anaconda.org/conda-forge/noarch/async-lru-2.0.4-pyhd8ed1ab_0.conda#3d081de3a6ea9f894bbb585e8e3a4dcb
https://conda.anaconda.org/conda-forge/noarch/babel-2.14.0-pyhd8ed1ab_0.conda#9669586875baeced8fc30c0826c3270e
https://conda.anaconda.org/conda-forge/noarch/beautifulsoup4-4.12.3-pyha770c72_0.conda#332493000404d8411859539a5a630865
https://conda.anaconda.org/conda-forge/noarch/bleach-6.1.0-pyhd8ed1ab_0.conda#0ed9d7c0e9afa7c025807a9a8136ea3e
https://conda.anaconda.org/conda-forge/noarch/cached-property-1.5.2-hd8ed1ab_1.tar.bz2#9b347a7ec10940d3f7941ff6c460b551
https://conda.anaconda.org/conda-forge/linux-64/cffi-1.16.0-py312hf06ca03_0.conda#56b0ca764ce23cc54f3f7e2a7b970f6d
https://conda.anaconda.org/conda-forge/noarch/comm-0.2.1-pyhd8ed1ab_0.conda#f4385072f4909bc974f6675a36e76796
https://conda.anaconda.org/conda-forge/noarch/gitdb-4.0.11-pyhd8ed1ab_0.conda#623b19f616f2ca0c261441067e18ae40
https://conda.anaconda.org/conda-forge/noarch/h11-0.14.0-pyhd8ed1ab_0.tar.bz2#b21ed0883505ba1910994f1df031a428
https://conda.anaconda.org/conda-forge/noarch/h2-4.1.0-pyhd8ed1ab_0.tar.bz2#b748fbf7060927a6e82df7cb5ee8f097
https://conda.anaconda.org/conda-forge/noarch/importlib-metadata-7.0.2-pyha770c72_0.conda#b050a4bb0e90ebd6e7fa4093d6346867
https://conda.anaconda.org/conda-forge/noarch/importlib_resources-6.1.3-pyhd8ed1ab_0.conda#b865eadcceebf641fa833ee086756e8b
https://conda.anaconda.org/conda-forge/noarch/jedi-0.19.1-pyhd8ed1ab_0.conda#81a3be0b2023e1ea8555781f0ad904a2
https://conda.anaconda.org/conda-forge/noarch/jinja2-3.1.3-pyhd8ed1ab_0.conda#e7d8df6509ba635247ff9aea31134262
https://conda.anaconda.org/conda-forge/linux-64/jupyter_core-5.7.1-py312h7900ff3_0.conda#a26a2c80b748744dafb642a9a729e119
https://conda.anaconda.org/conda-forge/noarch/jupyterlab_pygments-0.3.0-pyhd8ed1ab_1.conda#afcd1b53bcac8844540358e33f33d28f
https://conda.anaconda.org/conda-forge/noarch/matplotlib-inline-0.1.6-pyhd8ed1ab_0.tar.bz2#b21613793fcc81d944c76c9f2864a7de
https://conda.anaconda.org/conda-forge/noarch/overrides-7.7.0-pyhd8ed1ab_0.conda#24fba5a9d161ad8103d4e84c0e1a3ed4
https://conda.anaconda.org/conda-forge/noarch/pexpect-4.9.0-pyhd8ed1ab_0.conda#629f3203c99b32e0988910c93e77f3b6
https://conda.anaconda.org/conda-forge/noarch/pip-24.0-pyhd8ed1ab_0.conda#f586ac1e56c8638b64f9c8122a7b8a67
https://conda.anaconda.org/conda-forge/noarch/prompt-toolkit-3.0.42-pyha770c72_0.conda#0bf64bf10eee21f46ac83c161917fa86
https://conda.anaconda.org/conda-forge/noarch/python-dateutil-2.9.0-pyhd8ed1ab_0.conda#2cf4264fffb9e6eff6031c5b6884d61c
https://conda.anaconda.org/conda-forge/noarch/qtpy-2.4.1-pyhd8ed1ab_0.conda#7f391bd70d2abfb70f304ba5aa4e1261
https://conda.anaconda.org/conda-forge/noarch/referencing-0.33.0-pyhd8ed1ab_0.conda#bc415a1c6cf049166215d6b596e0fcbe
https://conda.anaconda.org/conda-forge/noarch/rfc3339-validator-0.1.4-pyhd8ed1ab_0.tar.bz2#fed45fc5ea0813240707998abe49f520
https://conda.anaconda.org/conda-forge/noarch/terminado-0.18.0-pyh0d859eb_0.conda#e463f348b8b0eb62c9f7c6fbc780286c
https://conda.anaconda.org/conda-forge/noarch/tinycss2-1.2.1-pyhd8ed1ab_0.tar.bz2#7234c9eefff659501cd2fe0d2ede4d48
https://conda.anaconda.org/conda-forge/noarch/typing-extensions-4.10.0-hd8ed1ab_0.conda#091683b9150d2ebaa62fd7e2c86433da
https://conda.anaconda.org/conda-forge/noarch/urllib3-2.2.1-pyhd8ed1ab_0.conda#08807a87fa7af10754d46f63b368e016
https://conda.anaconda.org/conda-forge/linux-64/argon2-cffi-bindings-21.2.0-py312h98912ed_4.conda#00536e0a1734dcde9815fe227f32fc5a
https://conda.anaconda.org/conda-forge/noarch/arrow-1.3.0-pyhd8ed1ab_0.conda#b77d8c2313158e6e461ca0efb1c2c508
https://conda.anaconda.org/conda-forge/noarch/fqdn-1.5.1-pyhd8ed1ab_0.tar.bz2#642d35437078749ef23a5dca2c9bb1f3
https://conda.anaconda.org/conda-forge/noarch/gitpython-3.1.42-pyhd8ed1ab_0.conda#6bc8e496351bafd761c0922c3ebd989a
https://conda.anaconda.org/conda-forge/noarch/httpcore-1.0.4-pyhd8ed1ab_0.conda#20f047662cf4fa8b97836111df87dbb4
https://conda.anaconda.org/conda-forge/noarch/importlib_metadata-7.0.2-hd8ed1ab_0.conda#d11132727a247f2c1998779a2af743a1
https://conda.anaconda.org/conda-forge/noarch/jsonschema-specifications-2023.12.1-pyhd8ed1ab_0.conda#a0e4efb5f35786a05af4809a2fb1f855
https://conda.anaconda.org/conda-forge/noarch/jupyter_server_terminals-0.5.2-pyhd8ed1ab_0.conda#a0152d13c9deb13639fc84df884d50b6
https://conda.anaconda.org/conda-forge/noarch/prompt_toolkit-3.0.42-hd8ed1ab_0.conda#85a2189ecd2fcdd86e92b2d4ea8fe461
https://conda.anaconda.org/conda-forge/noarch/requests-2.31.0-pyhd8ed1ab_0.conda#a30144e4156cdbb236f99ebb49828f8b
https://conda.anaconda.org/conda-forge/noarch/stack_data-0.6.2-pyhd8ed1ab_0.conda#e7df0fdd404616638df5ece6e69ba7af
https://conda.anaconda.org/conda-forge/noarch/argon2-cffi-23.1.0-pyhd8ed1ab_0.conda#3afef1f55a1366b4d3b6a0d92e2235e4
https://conda.anaconda.org/conda-forge/noarch/httpx-0.27.0-pyhd8ed1ab_0.conda#9f359af5a886fd6ca6b2b6ea02e58332
https://conda.anaconda.org/conda-forge/noarch/ipython-8.22.2-pyh707e725_0.conda#f0abe827c8a7c6d91bccdf90cb1fbee3
https://conda.anaconda.org/conda-forge/noarch/isoduration-20.11.0-pyhd8ed1ab_0.tar.bz2#4cb68948e0b8429534380243d063a27a
https://conda.anaconda.org/conda-forge/noarch/jsonschema-4.21.1-pyhd8ed1ab_0.conda#8a3a3d01629da20befa340919e3dd2c4
https://conda.anaconda.org/conda-forge/noarch/jupyter_client-8.6.0-pyhd8ed1ab_0.conda#6bd3f1069cdebb44c7ae9efb900e312d
https://conda.anaconda.org/conda-forge/noarch/ipykernel-6.29.3-pyhd33586a_0.conda#e0deff12c601ce5cb7476f93718f3168
https://conda.anaconda.org/conda-forge/noarch/ipywidgets-8.1.2-pyhd8ed1ab_0.conda#67f86478c78637f68c1f3858973021f2
https://conda.anaconda.org/conda-forge/noarch/jsonschema-with-format-nongpl-4.21.1-pyhd8ed1ab_0.conda#26bce4b5405738c09304d4f4796b2c2a
https://conda.anaconda.org/conda-forge/noarch/nbformat-5.9.2-pyhd8ed1ab_0.conda#61ba076de6530d9301a0053b02f093d2
https://conda.anaconda.org/conda-forge/noarch/jupyter_console-6.6.3-pyhd8ed1ab_0.conda#7cf6f52a66f8e3cd9d8b6c231262dcab
https://conda.anaconda.org/conda-forge/noarch/jupyter_events-0.9.0-pyhd8ed1ab_0.conda#00ba25993f0dba38cf72a7224e33289f
https://conda.anaconda.org/conda-forge/noarch/nbclient-0.8.0-pyhd8ed1ab_0.conda#e78da91cf428faaf05701ce8cc8f2f9b
https://conda.anaconda.org/conda-forge/noarch/qtconsole-base-5.5.1-pyha770c72_0.conda#5528a3eda283b421055c89bface19a1c
https://conda.anaconda.org/conda-forge/noarch/nbconvert-core-7.16.2-pyhd8ed1ab_0.conda#5ab3248dd05c543dc631276455ef6a54
https://conda.anaconda.org/conda-forge/noarch/jupyter_server-2.13.0-pyhd8ed1ab_0.conda#e242df505f194c4932fbb840a99207e2
https://conda.anaconda.org/conda-forge/noarch/nbconvert-pandoc-7.16.2-pyhd8ed1ab_0.conda#7a0bfebd69213722427cb61b077b4187
https://conda.anaconda.org/conda-forge/noarch/jupyter-lsp-2.2.4-pyhd8ed1ab_0.conda#91f93e1ebf6535be518715432d89fd92
https://conda.anaconda.org/conda-forge/noarch/jupyter-server-mathjax-0.2.6-pyh5bfe37b_1.conda#11ca195fc8a16770661a387bcce27c36
https://conda.anaconda.org/conda-forge/noarch/jupyterlab_server-2.25.4-pyhd8ed1ab_0.conda#ffd61670ae09d2d3c637f6afd29db443
https://conda.anaconda.org/conda-forge/noarch/nbconvert-7.16.2-pyhd8ed1ab_0.conda#e14e35cc4a5c90694bb41c5317b576a8
https://conda.anaconda.org/conda-forge/noarch/notebook-shim-0.2.4-pyhd8ed1ab_0.conda#3d85618e2c97ab896b5b5e298d32b5b3
https://conda.anaconda.org/conda-forge/noarch/jupyterlab-4.1.4-pyhd8ed1ab_0.conda#5af1ffec7c245d1ab2bf0cec0148a4c3
https://conda.anaconda.org/conda-forge/noarch/nbdime-4.0.1-pyhd8ed1ab_0.conda#dd76d44a144499f8ff3254fd20cdb7a2
https://conda.anaconda.org/conda-forge/noarch/notebook-7.1.1-pyhd8ed1ab_0.conda#f1a93f00b030dbede427001862c2854b
https://conda.anaconda.org/conda-forge/noarch/jupyter-1.0.0-pyhd8ed1ab_10.conda#056b8cc3d9b03f54fc49e6d70d7dc359

Info for workaround @ jupyter_server==2.12.5 (incl. lockfile)

Creating workaround env:

$ conda create --name nbdime nbdime jupyter jupyter_server==2.12.5

Lockfile for workaround env:

(nbdime) $ conda list --explicit --md5 > ~/nbdime_gh749_loginurl_jupyterserver_v2p12p5.lock
(nbdime) $ cat ~/nbdime_gh749_loginurl_jupyterserver_v2p12p5.lock 
# This file may be used to create an environment using:
# $ conda create --name <env> --file <this file>
# platform: linux-64
@EXPLICIT
https://conda.anaconda.org/conda-forge/linux-64/_libgcc_mutex-0.1-conda_forge.tar.bz2#d7c89558ba9fa0495403155b64376d81
https://conda.anaconda.org/conda-forge/linux-64/ca-certificates-2024.2.2-hbcca054_0.conda#2f4327a1cbe7f022401b236e915a5fef
https://conda.anaconda.org/conda-forge/linux-64/ld_impl_linux-64-2.40-h41732ed_0.conda#7aca3059a1729aa76c597603f10b0dd3
https://conda.anaconda.org/conda-forge/linux-64/libstdcxx-ng-13.2.0-h7e041cc_5.conda#f6f6600d18a4047b54f803cf708b868a
https://conda.anaconda.org/conda-forge/linux-64/pandoc-3.1.12.2-ha770c72_0.conda#4f04ceee8d953367da7de726af233303
https://conda.anaconda.org/conda-forge/linux-64/python_abi-3.12-4_cp312.conda#dccc2d142812964fcc6abdc97b672dff
https://conda.anaconda.org/conda-forge/noarch/tzdata-2024a-h0c530f3_0.conda#161081fc7cec0bfda0d86d7cb595f8d8
https://conda.anaconda.org/conda-forge/linux-64/libgomp-13.2.0-h807b86a_5.conda#d211c42b9ce49aee3734fdc828731689
https://conda.anaconda.org/conda-forge/linux-64/_openmp_mutex-4.5-2_gnu.tar.bz2#73aaf86a425cc6e73fcf236a5a46396d
https://conda.anaconda.org/conda-forge/linux-64/libgcc-ng-13.2.0-h807b86a_5.conda#d4ff227c46917d3b4565302a2bbb276b
https://conda.anaconda.org/conda-forge/linux-64/bzip2-1.0.8-hd590300_5.conda#69b8b6202a07720f448be700e300ccf4
https://conda.anaconda.org/conda-forge/linux-64/libexpat-2.6.1-h59595ed_0.conda#476fb82aba5358a08d52ec44e286ce33
https://conda.anaconda.org/conda-forge/linux-64/libffi-3.4.2-h7f98852_5.tar.bz2#d645c6d2ac96843a2bfaccd2d62b3ac3
https://conda.anaconda.org/conda-forge/linux-64/libnsl-2.0.1-hd590300_0.conda#30fd6e37fe21f86f4bd26d6ee73eeec7
https://conda.anaconda.org/conda-forge/linux-64/libsodium-1.0.18-h36c2ea0_1.tar.bz2#c3788462a6fbddafdb413a9f9053e58d
https://conda.anaconda.org/conda-forge/linux-64/libuuid-2.38.1-h0b41bf4_0.conda#40b61aab5c7ba9ff276c41cfffe6b80b
https://conda.anaconda.org/conda-forge/linux-64/libxcrypt-4.4.36-hd590300_1.conda#5aa797f8787fe7a17d1b0821485b5adc
https://conda.anaconda.org/conda-forge/linux-64/libzlib-1.2.13-hd590300_5.conda#f36c115f1ee199da648e0597ec2047ad
https://conda.anaconda.org/conda-forge/linux-64/ncurses-6.4-h59595ed_2.conda#7dbaa197d7ba6032caf7ae7f32c1efa0
https://conda.anaconda.org/conda-forge/linux-64/openssl-3.2.1-hd590300_0.conda#51a753e64a3027bd7e23a189b1f6e91e
https://conda.anaconda.org/conda-forge/linux-64/xz-5.2.6-h166bdaf_0.tar.bz2#2161070d867d1b1204ea749c8eec4ef0
https://conda.anaconda.org/conda-forge/linux-64/yaml-0.2.5-h7f98852_2.tar.bz2#4cb3ad778ec2d5a7acbdf254eb1c42ae
https://conda.anaconda.org/conda-forge/linux-64/libsqlite-3.45.1-h2797004_0.conda#fc4ccadfbf6d4784de88c41704792562
https://conda.anaconda.org/conda-forge/linux-64/readline-8.2-h8228510_1.conda#47d31b792659ce70f470b5c82fdfb7a4
https://conda.anaconda.org/conda-forge/linux-64/tk-8.6.13-noxft_h4845f30_101.conda#d453b98d9c83e71da0741bb0ff4d76bc
https://conda.anaconda.org/conda-forge/linux-64/zeromq-4.3.5-h59595ed_1.conda#7fc9d3288d2420bb3637647621018000
https://conda.anaconda.org/conda-forge/linux-64/python-3.12.2-hab00c5b_0_cpython.conda#ad7b68400f3a6ebe72b00be093c7f301
https://conda.anaconda.org/conda-forge/noarch/attrs-23.2.0-pyh71513ae_0.conda#5e4c0743c70186509d1412e03c2d8dfa
https://conda.anaconda.org/conda-forge/linux-64/brotli-python-1.1.0-py312h30efb56_1.conda#45801a89533d3336a365284d93298e36
https://conda.anaconda.org/conda-forge/noarch/cached_property-1.5.2-pyha770c72_1.tar.bz2#576d629e47797577ab0f1b351297ef4a
https://conda.anaconda.org/conda-forge/noarch/certifi-2024.2.2-pyhd8ed1ab_0.conda#0876280e409658fc6f9e75d035960333
https://conda.anaconda.org/conda-forge/noarch/charset-normalizer-3.3.2-pyhd8ed1ab_0.conda#7f4a9e3fcff3f6356ae99244a014da6a
https://conda.anaconda.org/conda-forge/noarch/colorama-0.4.6-pyhd8ed1ab_0.tar.bz2#3faab06a954c2a04039983f2c4a50d99
https://conda.anaconda.org/conda-forge/linux-64/debugpy-1.8.1-py312h30efb56_0.conda#bdd639417094ace2fb1ce10b20d68d5d
https://conda.anaconda.org/conda-forge/noarch/decorator-5.1.1-pyhd8ed1ab_0.tar.bz2#43afe5ab04e35e17ba28649471dd7364
https://conda.anaconda.org/conda-forge/noarch/defusedxml-0.7.1-pyhd8ed1ab_0.tar.bz2#961b3a227b437d82ad7054484cfa71b2
https://conda.anaconda.org/conda-forge/noarch/entrypoints-0.4-pyhd8ed1ab_0.tar.bz2#3cf04868fee0a029769bd41f4b2fbf2d
https://conda.anaconda.org/conda-forge/noarch/exceptiongroup-1.2.0-pyhd8ed1ab_2.conda#8d652ea2ee8eaee02ed8dc820bc794aa
https://conda.anaconda.org/conda-forge/noarch/executing-2.0.1-pyhd8ed1ab_0.conda#e16be50e378d8a4533b989035b196ab8
https://conda.anaconda.org/conda-forge/noarch/hpack-4.0.0-pyh9f0ad1d_0.tar.bz2#914d6646c4dbb1fd3ff539830a12fd71
https://conda.anaconda.org/conda-forge/noarch/hyperframe-6.0.1-pyhd8ed1ab_0.tar.bz2#9f765cbfab6870c8435b9eefecd7a1f4
https://conda.anaconda.org/conda-forge/noarch/idna-3.6-pyhd8ed1ab_0.conda#1a76f09108576397c41c0b0c5bd84134
https://conda.anaconda.org/conda-forge/noarch/json5-0.9.22-pyhd8ed1ab_0.conda#2fa51897d3aee2fe1636b98d9a6236dc
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guilherme-francisco · 2024-03-14T11:30:55Z

Seems related to the latest jupyter-server. I can get it working with pip install 'jupyter-server==2.12.5'.

It fixed my problem. Thanks!

krassowski · 2024-03-14T12:28:02Z

It looks like login_url setting is not getting passed for auth handlers in nbdime. For reference the jupyter-server passes:

"login_url": url_path_join(base_url, "/login"),

I think it should be added somewhere here:

nbdime/nbdime/webapp/nbdimeserver.py

Lines 382 to 397 in 9a02e0d

    
           settings = { 
        
               'log_function': log_request, 
        
               'static_path': static_path, 
        
               'static_url_prefix': prefix + '/static/', 
        
               'template_path': [template_path], 
        
               'base_url': base_url, 
        
               'jinja2_env': env, 
        
               'local_hostnames': ['localhost', '127.0.0.1'], 
        
               'cookie_secret': base64.encodebytes(os.urandom(32)), # Needed even for an unsecured server. 
        
           } 
        
           try: 
        
               from jupyter_server.auth import IdentityProvider 
        
               settings['identity_provider'] = IdentityProvider() 
        
           except ImportError: 
        
               pass

yan12125 · 2024-03-16T12:11:40Z

Is login necessary for nbdime? I can get it working by adding 'allow_unauthenticated_access': True to the aforementioned settings dictionary:

diff --git a/nbdime/webapp/nbdimeserver.py b/nbdime/webapp/nbdimeserver.py
index e4d98b6..4c35c7f 100644
--- a/nbdime/webapp/nbdimeserver.py
+++ b/nbdime/webapp/nbdimeserver.py
@@ -388,6 +388,7 @@ def make_app(**params):
         'jinja2_env': env,
         'local_hostnames': ['localhost', '127.0.0.1'],
         'cookie_secret': base64.encodebytes(os.urandom(32)), # Needed even for an unsecured server.
+        'allow_unauthenticated_access': True,
     }
 
     try:

I also added this patch to the Arch Linux package, so that users can at least get back a working command.

see also the upstream issue for this: jupyter/nbdime#749

stefanzero · 2024-05-27T21:10:30Z

Thanks yan12125 . I cloned the repo, and your patch worked!

When will this be fixed in the version of nbdime (4.0.1) installed by Brew on OSX (Monterey)?

krassowski · 2024-05-30T09:37:53Z

Login is not necessary but authentication is necessary. Setting allow_unauthenticated_access to True will prevent jupyter-server from detecting insecure endpoints. This can lead to security vulnerabilities, so the suggestion from #749 (comment) should not be merged into the code base.

etep · 2024-07-16T18:43:12Z

I hit this issue, and currently I have jupyter_server==2.14.1. The comment trail above indicates the issue is closed, but it's not clear what the fix is. My takeaway... to fix, one must either:

roll back jupyter server to an older version, or
clone & patch the nbdime repo to be insecure (but how insecure is this... I'm running all this on my machine).

krassowski · 2024-07-16T19:08:53Z

The comment trail above indicates the issue is closed

The issue is not closed.

Looking at this again, the entire nbdimeserver would need to be rewritten to use an ExtensionApp to be reasonably secure and avoid code duplication. I changed my mind and now think that short-term adding allow_unauthenticated_access is fine as long as it is explicitly documented (that the server is not secure and anyone can see user notebooks).

greglank · 2024-07-24T19:30:13Z

I would like to confirm that
(a) This issue is still open, and prevents running nbdiff-web on my local Windows machine
(b) Rolling back jupyter server, pip install 'jupyter-server==2.12.5', worked for me

krassowski · 2024-09-05T13:41:33Z

Can you try nbdime v4.0.2?

this-josh changed the title ~~Cannot run nbdiff-web jinja2.exceptions.TemplateNotFound: error.html~~ nbdiff-web gives error jinja2.exceptions.TemplateNotFound: error.html Mar 11, 2024

this-josh changed the title ~~nbdiff-web gives error jinja2.exceptions.TemplateNotFound: error.html~~ nbdiff-web gives error Exception: You must define the 'login_url' setting in your application to use @tornado.web.authenticated` Mar 11, 2024

edmundhenley-mo mentioned this issue Mar 12, 2024

Failure to authenticate API endpoints should raise 403 instead of redirect jupyter/notebook#2428

Closed

999eagle mentioned this issue Mar 24, 2024

python3Packages.nbdime: fix build for jupyter-server 2.13 NixOS/nixpkgs#298668

Merged

13 tasks

999eagle added a commit to 999eagle/nixpkgs that referenced this issue Mar 27, 2024

python3Packages.nbdime: fix build for jupyter-server 2.13

9ecd9e0

see also the upstream issue for this: jupyter/nbdime#749

This was referenced May 28, 2024

Add image test using nbval and nbdime ipython/matplotlib-inline#32

Merged

Allow unauthenticated access to jupyter server #756

Closed

krassowski mentioned this issue Aug 28, 2024

Allow unauthenticated access to jupyter server #761

Merged

krassowski closed this as completed in #761 Aug 28, 2024

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`nbdiff-web` gives error `Exception: You must define the 'login_url' setting in your application to use @tornado.web.authenticated`` #749

`nbdiff-web` gives error `Exception: You must define the 'login_url' setting in your application to use @tornado.web.authenticated`` #749

this-josh commented Mar 11, 2024

yan12125 commented Mar 12, 2024

edmundhenley-mo commented Mar 12, 2024

guilherme-francisco commented Mar 14, 2024

krassowski commented Mar 14, 2024

yan12125 commented Mar 16, 2024 •

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stefanzero commented May 27, 2024 •

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krassowski commented May 30, 2024

etep commented Jul 16, 2024

krassowski commented Jul 16, 2024 •

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greglank commented Jul 24, 2024

krassowski commented Sep 5, 2024

nbdiff-web gives error Exception: You must define the 'login_url' setting in your application to use @tornado.web.authenticated` #749

nbdiff-web gives error Exception: You must define the 'login_url' setting in your application to use @tornado.web.authenticated` #749

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this-josh commented Mar 11, 2024

yan12125 commented Mar 12, 2024

edmundhenley-mo commented Mar 12, 2024

guilherme-francisco commented Mar 14, 2024

krassowski commented Mar 14, 2024

yan12125 commented Mar 16, 2024 • edited Loading

stefanzero commented May 27, 2024 • edited Loading

krassowski commented May 30, 2024

etep commented Jul 16, 2024

krassowski commented Jul 16, 2024 • edited Loading

greglank commented Jul 24, 2024

krassowski commented Sep 5, 2024

`nbdiff-web` gives error `Exception: You must define the 'login_url' setting in your application to use @tornado.web.authenticated`` #749

`nbdiff-web` gives error `Exception: You must define the 'login_url' setting in your application to use @tornado.web.authenticated`` #749

yan12125 commented Mar 16, 2024 •

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stefanzero commented May 27, 2024 •

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krassowski commented Jul 16, 2024 •

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