Bug #6861: Double exception on incomplete authorisation information - Mentat - Homeproj: Redmine for CESNET

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Bug #6861

closed

Double exception on incomplete authorisation information

Added by Pavel Kácha over 3 years ago. Updated 4 days ago.

Status:

Closed

Priority:

Low

Assignee:

Rajmund Hruška

Category:

Development - GUI

Target version:

2.13.1

Start date:

01/06/2021

Due date:

% Done:

Estimated time:

To be discussed:

Description

When Mentat does not get identity field, it throws up exceptions - which throws another.

Throwing exception is not itself wrong, throwing another based on the same reason from the handler is.

However, the problem might be legitimate (identity provider not sending attributes), so user should probably be somehow informed, instead of getting generic 500 page.

Also, exception handler should log some relevant info (obtained auth data or so) for admin debugging.

(Setting priority to low, as it is now mitigated by Shibboleth configuration on server, however we should look into it eventually.)

Message type: CRITICAL
Location:     /var/mentat/venv/lib/python3.7/site-packages/vial/app.py:414
Module:       app
Function:     eh_internal_server_error
Time:         2020-12-04 10:40:28,374

Message:

INTERNAL SERVER ERROR

Request: /auth_env/register?
Traceback:
Traceback (most recent call last):
  File "/var/mentat/venv/lib/python3.7/site-packages/hawat/blueprints/auth_env/__init__.py", line 179, in get_item
    return self.get_user_from_env()
  File "/var/mentat/venv/lib/python3.7/site-packages/hawat/blueprints/auth_env/__init__.py", line 126, in get_user_from_env
    gettext("Unable to retrieve account login from your authentication provider.")
hawat.blueprints.auth_env.RegistrationException: Nelze získat uživatelské jméno od Vašeho poskytovatele identity.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/var/mentat/venv/lib/python3.7/site-packages/flask/app.py", line 1949, in full_dispatch_request
    rv = self.dispatch_request()
  File "/var/mentat/venv/lib/python3.7/site-packages/flask/app.py", line 1935, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
  File "/var/mentat/venv/lib/python3.7/site-packages/flask/views.py", line 89, in view
    return self.dispatch_request(*args, **kwargs)
  File "/var/mentat/venv/lib/python3.7/site-packages/vial/blueprints/auth_env/__init__.py", line 251, in dispatch_request
    return super().dispatch_request()
  File "/var/mentat/venv/lib/python3.7/site-packages/vial/view/__init__.py", line 1622, in dispatch_request
    item = self.get_item()
  File "/var/mentat/venv/lib/python3.7/site-packages/hawat/blueprints/auth_env/__init__.py", line 181, in get_item
    self.abort(500, exc)
  File "/var/mentat/venv/lib/python3.7/site-packages/vial/view/mixin.py", line 60, in abort
    flask.abort(status_code, message)
  File "/var/mentat/venv/lib/python3.7/site-packages/werkzeug/exceptions.py", line 772, in abort
    return _aborter(status, *args, **kwargs)
  File "/var/mentat/venv/lib/python3.7/site-packages/werkzeug/exceptions.py", line 753, in __call__
    raise self.mapping[code](*args, **kwargs)
werkzeug.exceptions.InternalServerError: 500 Internal Server Error: Nelze získat uživatelské jméno od Vašeho poskytovatele identity.

Related issues

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Updated by Pavel Kácha over 3 years ago

To be discussed changed from No to Yes

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Updated by Pavel Kácha over 3 years ago

To be discussed deleted (~~Yes~~)

After discussion 2021-01-11:

rewrapped exception might be on purpose - would need to look into it if it's really necessary globally (not just in auth module)
user does actually not need not to be informed much more apart from that error occured - admins knows it happended because it's mailed to him and has to look into it anyway. So no change in presentation necessary.
However, exceptions, which leave app, should be logged with some more relevant info for debugging: session, cookie, request, user, environment. Flask might have some tools to help with this (something akin to cgitb).

Mek: handlers setting is in _setup_app_core - lib/vial/app.py

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Updated by Rajmund Hruška 24 days ago

Category set to Development - GUI
Status changed from New to In Progress
Target version changed from Backlog to 2.13.1

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Updated by Rajmund Hruška 23 days ago

Status changed from In Progress to Feedback

The same issue is present in attachment download view of events.

Message type: CRITICAL
Location:     /var/mentat/venv/lib/python3.11/site-packages/hawat/base.py:492
Module:       base
Function:     eh_badrequest
Time:         2024-07-04 09:22:14,916

Message:

BAD REQUEST

Request: /events/xxxxxxxxxxxxxxxxxxxxxxxxx/attachments/str/download?
Traceback:
Traceback (most recent call last):
  File "/var/mentat/venv/lib/python3.11/site-packages/hawat/blueprints/events/__init__.py", line 421, in dispatch_request
    attachment_number = int(attachment_number)
                        ^^^^^^^^^^^^^^^^^^^^^^
ValueError: invalid literal for int() with base 10: 'str'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/var/mentat/venv/lib/python3.11/site-packages/flask/app.py", line 1823, in full_dispatch_request
    rv = self.dispatch_request()
         ^^^^^^^^^^^^^^^^^^^^^^^
  File "/var/mentat/venv/lib/python3.11/site-packages/flask/app.py", line 1799, in dispatch_request
    return self.ensure_sync(self.view_functions[rule.endpoint])(**view_args)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/var/mentat/venv/lib/python3.11/site-packages/flask_login/utils.py", line 290, in decorated_view
    return current_app.ensure_sync(func)(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/var/mentat/venv/lib/python3.11/site-packages/flask/views.py", line 107, in view
    return current_app.ensure_sync(self.dispatch_request)(**kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/var/mentat/venv/lib/python3.11/site-packages/hawat/blueprints/events/__init__.py", line 423, in dispatch_request
    self.abort(400,
  File "/var/mentat/venv/lib/python3.11/site-packages/hawat/view/mixin.py", line 60, in abort
    flask.abort(status_code, message)
  File "/var/mentat/venv/lib/python3.11/site-packages/flask/helpers.py", line 310, in abort
    current_app.aborter(code, *args, **kwargs)
  File "/var/mentat/venv/lib/python3.11/site-packages/werkzeug/exceptions.py", line 861, in __call__
    raise self.mapping[code](*args, **kwargs)
werkzeug.exceptions.BadRequest: 400 Bad Request: Attachment number must be a valid number.