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6 commits

Author SHA1 Message Date
Kevin Morris
5ceeb88bee remove unused imports, rectify isort violations
Files got into the branch that violate both PEP-8 guidelines
and isorts. This fixes them.

Signed-off-by: Kevin Morris <kevr@0cost.org>
2021-06-05 21:27:39 -07:00
Kevin Morris
228bc8fe7c fix aurweb.auth test coverage
With mysqlclient, we no longer need to account for a user not existing
when an ssh key is found.

Signed-off-by: Kevin Morris <kevr@0cost.org>
2021-06-05 20:17:48 -07:00
Kevin Morris
aecb649473 use mysql backend in config.dev
First off: This commit changes the default development database
backend to mysql. sqlite, however, is still completely supported
with the caveat that a user must now modify config.dev to use
the sqlite backend.

While looking into this, it was discovered that our SQLAlchemy
backend for mysql (mysql-connector) completely broke model
attributes when we switched to utf8mb4_bin (binary) -- it does
not correct the correct conversion to and from binary utf8mb4.

The new, replacement dependency mysqlclient does. mysqlclient
is also recommended in SQLAlchemy documentation as the "best"
one available.

The mysqlclient backend uses a different exception flow then
sqlite, and so tests expecting IntegrityError has to be modified
to expect OperationalError from sqlalchemy.exc.

So, for each model that we define, check keys that can't be
NULL and raise sqlalchemy.exc.IntegrityError if we have to.
This way we keep our exceptions uniform.

Signed-off-by: Kevin Morris <kevr@0cost.org>
2021-06-05 20:17:48 -07:00
Kevin Morris
38dc2bb99d Sanitize and modernize pytests
Some of these tests were written before some of our convenient
tooling existed. Additionally, some of the tests were not
cooperating with PEP-8 guidelines or isorted.

This commit does the following:
    - Replaces all calls to make_(user|session) with
      aurweb.db.create(Model, ...).
    - Replace calls to session.add(...) + session.commit() with
      aurweb.db.create.
    - Removes the majority of calls to (session|aurweb.db).delete(...).
    - Replaces session.query calls with aurweb.db.query.
    - Initializes all mutable globals in pytest fixture setup().
    - Makes mutable global declarations more concise:
      `var1, var2 = None, None` -> `var1 = var2 = None`
    - Defines a warning exclusion for test/test_ssh_pub_key.py.
    - Removes the aurweb.testing.models module.
    - Removes some useless pytest.fixture yielding.

As of this commit, developers should use the following guidelines
when writing tests:
    - Always use aurweb.db.(create|delete|query) for database
      operations, where possible.
    - Always define mutable globals in the style: `var1 = var2 = None`.
    - `yield` the most dependent model in pytest setup fixture **iff**
      you must delete records after test runs to maintain database
      integrity. Example: test/test_account_type.py.

This all makes the test code look and behave much cleaner.
Previously, aurweb.testing.setup_test_db was buggy and leaving
objects around in SQLAlchemy's IdentityMap.

Signed-off-by: Kevin Morris <kevr@0cost.org>
2021-06-05 20:11:17 -07:00
Kevin Morris
07d5907ecd aurweb.auth: add user credentials and matcher functions
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>
2021-06-05 20:11:17 -07:00
Kevin Morris
56f2798279 add aurweb.auth and authentication to User
+ 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>
2021-06-05 20:11:17 -07:00