This commit does quite a bit:
- Catches unhandled exceptions raised in the route handler and
produces a 500 Internal Server Error Arch-themed response.
- Each unhandled exception causes a notification to be sent to new
`notifications.postmaster` email with a "Traceback ID."
- Traceback ID is logged to the server along with the traceback which
caused the 500: `docker-compose logs fastapi | grep '<traceback_id>'`
- If `options.traceback` is set to `1`, traceback is displayed in
the new 500.html template.
Signed-off-by: Kevin Morris <kevr@0cost.org>
Previously, we were just relying on the cookie expiration
for sessions to expire. We were not cleaning up Session
records either.
Rework timing to depend on an AURREMEMBER cookie which is
now emitted on login during BasicAuthBackend processing.
If the SID does still have a session but it's expired,
we now delete the session record before returning.
Otherwise, we update the session's LastUpdateTS to
the current time.
In addition, stored the unauthenticated result value
in a variable to reduce redundancy.
Signed-off-by: Kevin Morris <kevr@0cost.org>
We've seen a bug in the past where unique SID generation fails and
still ends up raising an exception.
This commit reworks how we deal with database exceptions internally,
tries for 36 iterations to set a fresh unique SID, and raises a 500
HTTPException if we were unable to.
Signed-off-by: Kevin Morris <kevr@0cost.org>
Changes:
-------
- Add aurweb.db.get_session()
- Returns aurweb.db's global `session` instance
- Provides us a way to change the implementation of the session
instance without interrupting user code.
- Use aurweb.db.get_session() in session API methods
- Add docstrings to session API methods
- Refactor aurweb.db.delete
- Normalize aurweb.db.delete to an alias of session.delete
- Refresh instances in places we depend on their non-PK columns
being up to date.
Signed-off-by: Kevin Morris <kevr@0cost.org>
We don't want to depend on the database to load up data
about the models we define. We now leverage the existing
`aurweb.schema` module for table definitions and set
__table_args__["autoload"] to False.
Signed-off-by: Kevin Morris <kevr@0cost.org>
Now, we allow the direct relationships and their foreign keys to
be set in all of our models. Previously, we constrained this to
direct relationships, and this forced users to perform a query
in most situations to satisfy that requirement. Now, IDs can be
passed directly.
Additionally, this change removes the need for extraneous imports
when users which to use relationships. We now import and use models
directly instead of passing string-references to them.
Signed-off-by: Kevin Morris <kevr@0cost.org>
For SQLAlchemy to automatically understand updates from the
external world, it must use an `autocommit=True` in its session.
This change breaks how we were using commit previously, as
`autocommit=True` causes SQLAlchemy to commit when a
SessionTransaction context hits __exit__.
So, a refactoring was required of our tests: All usage of
any `db.{create,delete}` must be called **within** a
SessionTransaction context, created via new `db.begin()`.
From this point forward, we're going to require:
```
with db.begin():
db.create(...)
db.delete(...)
db.session.delete(object)
```
With this, we now get external DB modifications automatically
without reloading or restarting the FastAPI server, which we
absolutely need for production.
Signed-off-by: Kevin Morris <kevr@0cost.org>
Added:
- User.voted_for(package)
- Has a user voted for a particular package?
- User.notified(package)
- Is a user being notified about a particular package?
- User.packages()
- Entire collection of Package objects related to User.
Signed-off-by: Kevin Morris <kevr@0cost.org>
Slight markup changes, same style overall and same
form parameters as the PHP implementation.
In addition, we've disabled the "left" and "right"
navigation buttons when we're at the border of the
table.
CSS Changes:
- Added similar styling to submit `<buttons>` that submit `<input>` had.
- Added .results tr td[align="{left,right}"] styling to align
the result table's `More -->` button to the right of the table.
Signed-off-by: Kevin Morris <kevr@0cost.org>
This commit introduces a middleware function which adds
the following security headers to each response:
- Content-Security-Policy
- This includes a new `nonce`, which is tied to a user
via authentication middleware. Both an anonymous user
and an authenticated user recieve their own random nonces.
- X-Content-Type-Options
- Referrer-Policy
- X-Frame-Options
They are then tested for existence in test/test_routes.py.
Note: The overcomplicated-looking asyncio behavior in the
middleware function is used to avoid a warning about the old
coroutine awaits being deprecated. See
https://docs.python.org/3/library/asyncio-task.html#asyncio.wait
for more detail.
Signed-off-by: Kevin Morris <kevr@0cost.org>
This rewrites the entire model base as declarative models.
This allows us to more easily customize overlay fields
in tables and is more common.
This effort also brought some DB violations to light which
this commit addresses.
Signed-off-by: Kevin Morris <kevr@0cost.org>
We don't want to do this on construction. We only want to do this
when we want to actually add the user to the database (or modify it).
Signed-off-by: Kevin Morris <kevr@0cost.org>
This clones the behavior already present in the PHP implementation,
but it uses a global dict with credential constant keys to
validation functions to determine if a given user has a credential.
Signed-off-by: Kevin Morris <kevr@0cost.org>
+ Added aurweb.auth.AnonymousUser
* An instance of this model is returned as the request user
when the request is not authenticated
+ Added aurweb.auth.BasicAuthBackend
+ Add starlette's AuthenticationMiddleware to app middleware,
which uses our BasicAuthBackend facility
+ Added User.is_authenticated()
+ Added User.authenticate(password)
+ Added User.login(request, password)
+ Added User.logout(request)
+ Added repr(User(...)) representation
+ Added aurweb.auth.auth_required decorator.
This change uses the same AURSID logic in the PHP implementation.
Additionally, introduce a few helpers for authentication,
one of which being `User.update_password(password, rounds = 12)`
where `rounds` is a configurable number of salt rounds.
Signed-off-by: Kevin Morris <kevr@0cost.org>
+ Added aurweb.models.user.User class. This is the first example
of an sqlalchemy ORM model. We can search for users via for example:
`session.query(User).filter(User.ID==1).first()`, where `session` is
a configured `aurweb.db.session` object.
+ Along with the User class, defined the AccountType class.
Each User maintains a relationship to its AccountType via User.AccountType.
+ Added AccountType.users backref.
Signed-off-by: Kevin Morris <kevr@0cost.org>
