Merge pull request 'feature/migrations, closes #19' (#20) from feature/migrations into develop

Reviewed-on: #20

README.md

@@ -31,18 +31,41 @@ or if you want to also run the tests:
 
     pip3 install --user ".[ldap,tests]"
 
-You will also need a MySQL driver, recommended drivers are
-- `mysqlclient`
-- `PyMySQL`
+You will also need a MySQL driver, by default one of this is installed:
+- `mysqlclient` (non Windows)
+- `PyMySQL` (on Windows)
 
-`setup.py` will try to install a matching driver.
+#### Hint on MySQL driver on Windows:
+If you want to use `mysqlclient` instead of `PyMySQL` (performance?) you have to follow [this guide](https://www.radishlogic.com/coding/python-3/installing-mysqldb-for-python-3-in-windows/)
 
-#### Windows
-Same as above, but if you want to use `mysqlclient` instead of `PyMySQL` (performance?) you have to follow this guide:
+### Install database
+The user needs to have full permissions to the database.
+If not you need to create user and database manually do (or similar on Windows):
 
-https://www.radishlogic.com/coding/python-3/installing-mysqldb-for-python-3-in-windows/
+    (
+        echo "CREATE DATABASE flaschengeist;"
+        echo "CREATE USER 'flaschengeist'@'localhost' IDENTIFIED BY 'flaschengeist';"
+        echo "GRANT ALL PRIVILEGES ON flaschengeist.* TO 'flaschengeist'@'localhost';"
+        echo "FLUSH PRIVILEGES;"
+    ) | sudo mysql
 
-### Configuration
+Then you can install the database tables, this will update all tables from core + all enabled plugins.
+And also install all enabled plugins:
+
+    $ flaschengeist install
+
+*Hint:* To only install the database tables, or upgrade the database after plugins or core are updated later
+you can use this command:
+
+    $ flaschengeist db upgrade heads
+
+
+## Plugins
+To only upgrade one plugin (for example the `events` plugin):
+
+    $ flaschengeist db upgrade events@head
+
+## Configuration
 Configuration is done within the a `flaschengeist.toml`file, you can copy the one located inside the module path
 (where flaschegeist is installed) or create an empty one and place it inside either:
 1. `~/.config/`
@@ -63,21 +86,6 @@ So you have to configure one of the following options to call flaschengeists CRO
   - Pros: Guaranteed execution interval, no impact on user experience (at least if you do not limit wsgi worker threads)
   - Cons: Uses one of the webserver threads while executing
 
-### Database installation
-The user needs to have full permissions to the database.
-If not you need to create user and database manually do (or similar on Windows):
-
-    (
-        echo "CREATE DATABASE flaschengeist;"
-        echo "CREATE USER 'flaschengeist'@'localhost' IDENTIFIED BY 'flaschengeist';"
-        echo "GRANT ALL PRIVILEGES ON flaschengeist.* TO 'flaschengeist'@'localhost';"
-        echo "FLUSH PRIVILEGES;"
-    ) | sudo mysql
-
-Then you can install the database tables and initial entries:
-
-    $ flaschengeist install
-
 ### Run
 Flaschengeist provides a CLI, based on the flask CLI, respectivly called `flaschengeist`.
 
@@ -86,6 +94,7 @@ with the difference of the main logger will be forced to output to `stderr` and
 of the CLI will override the logging level you have configured for the main logger.
 
     $ flaschengeist run
+
 or with debug messages:
 
     $ flaschengeist run --debug

docs/plugin_development.md

@@ -5,9 +5,53 @@
     - your_plugin/
         - __init__.py
         - ...
+        - migrations/ (optional)
             - ...
     - setup.cfg
 
 The basic layout of a plugin is quite simple, you will only need the `setup.cfg` or `setup.py` and
 the package containing your plugin code, at lease a `__init__.py` file with your `Plugin` class.
 
+If you use custom database tables you need to provide a `migrations` directory within your package,
+see next section.
+
+## Database Tables / Migrations
+To allow upgrades of installed plugins, the database is versioned and handled
+through [Alembic](https://alembic.sqlalchemy.org/en/latest/index.html) migrations.
+Each plugin, which uses custom database tables, is represented as an other base.
+So you could simply follow the Alembic tutorial on [how to work with multiple bases](https://alembic.sqlalchemy.org/en/latest/branches.html#creating-a-labeled-base-revision).
+
+A quick overview on how to work with migrations for your plugin:
+
+    $ flaschengeist db revision -m "Create my super plugin" \
+      --head=base --branch-label=myplugin_name --version-path=your/plugin/migrations
+
+This would add a new base named `myplugin_name`, which should be the same as the pypi name of you plugin.
+If your tables depend on an other plugin or a specific base version you could of cause add
+
+    --depends-on=VERSION
+
+or
+
+    --depends-on=other_plugin
+
+
+### Plugin Removal and Database Tables
+As generic downgrades are most often hard to write, your plugin is not required to provide such functionallity.
+For Flaschengeist only instable versions provide meaningful downgrade migrations down to the latest stable version.
+
+So this means if you do not provide downgrades you must at lease provide a series of migrations toward removal of
+the database tables in case the users wants to delete the plugin.
+
+    (base) ----> 1.0 <----> 1.1 <----> 1.2
+                  |         
+                  --> removal
+
+After the removal step the database is stamped to to "remove" your
+
+## Useful Hooks
+There are some predefined hooks, which might get handy for you.
+
+For more information, please refer to
+- `flaschengeist.utils.hook.HookBefore` and
+- `flaschengeist.utils.hook.HookAfter`

flaschengeist/alembic/__init__.py

@@ -0,0 +1,5 @@
+from pathlib import Path
+
+
+alembic_migrations_path = str(Path(__file__).resolve().parent / "migrations")
+alembic_script_path = str(Path(__file__).resolve().parent)

flaschengeist/alembic/alembic.ini

@@ -0,0 +1,53 @@
+# A generic, single database configuration.
+# No used by flaschengeist
+
+[alembic]
+# template used to generate migration files
+# file_template = %%(rev)s_%%(slug)s
+
+# set to 'true' to run the environment during
+# the 'revision' command, regardless of autogenerate
+# revision_environment = false
+
+version_path_separator = os
+version_locations = %(here)s/migrations
+
+# Logging configuration
+[loggers]
+keys = root,sqlalchemy,alembic,flask_migrate
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARN
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARN
+handlers =
+qualname = sqlalchemy.engine
+
+[logger_alembic]
+level = INFO
+handlers =
+qualname = alembic
+
+[logger_flask_migrate]
+level = INFO
+handlers =
+qualname = flask_migrate
+
+[handler_console]
+class = StreamHandler
+args = (sys.stderr,)
+level = NOTSET
+formatter = generic
+
+[formatter_generic]
+format = %(levelname)-5.5s [%(name)s] %(message)s
+datefmt = %H:%M:%S

flaschengeist/alembic/env.py

@@ -0,0 +1,74 @@
+import logging
+from logging.config import fileConfig
+from pathlib import Path
+from flask import current_app
+from alembic import context
+
+# this is the Alembic Config object, which provides
+# access to the values within the .ini file in use.
+config = context.config
+
+# Interpret the config file for Python logging.
+# This line sets up loggers basically.
+fileConfig(Path(config.get_main_option("script_location")) / config.config_file_name.split("/")[-1])
+logger = logging.getLogger("alembic.env")
+
+config.set_main_option("sqlalchemy.url", str(current_app.extensions["migrate"].db.get_engine().url).replace("%", "%%"))
+target_metadata = current_app.extensions["migrate"].db.metadata
+
+
+def run_migrations_offline():
+    """Run migrations in 'offline' mode.
+
+    This configures the context with just a URL
+    and not an Engine, though an Engine is acceptable
+    here as well.  By skipping the Engine creation
+    we don't even need a DBAPI to be available.
+
+    Calls to context.execute() here emit the given string to the
+    script output.
+
+    """
+    url = config.get_main_option("sqlalchemy.url")
+    context.configure(url=url, target_metadata=target_metadata, literal_binds=True)
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def run_migrations_online():
+    """Run migrations in 'online' mode.
+
+    In this scenario we need to create an Engine
+    and associate a connection with the context.
+
+    """
+
+    # this callback is used to prevent an auto-migration from being generated
+    # when there are no changes to the schema
+    # reference: http://alembic.zzzcomputing.com/en/latest/cookbook.html
+    def process_revision_directives(context, revision, directives):
+        if getattr(config.cmd_opts, "autogenerate", False):
+            script = directives[0]
+            if script.upgrade_ops.is_empty():
+                directives[:] = []
+                logger.info("No changes in schema detected.")
+
+    connectable = current_app.extensions["migrate"].db.get_engine()
+
+    with connectable.connect() as connection:
+        context.configure(
+            connection=connection,
+            target_metadata=target_metadata,
+            process_revision_directives=process_revision_directives,
+            **current_app.extensions["migrate"].configure_args,
+        )
+
+        with context.begin_transaction():
+            context.run_migrations()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()

flaschengeist/alembic/migrations/20482a003db8_initial_core_db.py

@@ -0,0 +1,154 @@
+"""Initial core db
+
+Revision ID: 20482a003db8
+Revises: 
+Create Date: 2022-08-25 15:13:34.900996
+
+"""
+from alembic import op
+import sqlalchemy as sa
+import flaschengeist
+
+
+# revision identifiers, used by Alembic.
+revision = "20482a003db8"
+down_revision = None
+branch_labels = ("flaschengeist",)
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table(
+        "image",
+        sa.Column("id", flaschengeist.database.types.Serial(), nullable=False),
+        sa.Column("filename", sa.String(length=255), nullable=False),
+        sa.Column("mimetype", sa.String(length=127), nullable=False),
+        sa.Column("thumbnail", sa.String(length=255), nullable=True),
+        sa.Column("path", sa.String(length=255), nullable=True),
+        sa.PrimaryKeyConstraint("id", name=op.f("pk_image")),
+    )
+    op.create_table(
+        "plugin",
+        sa.Column("id", flaschengeist.database.types.Serial(), nullable=False),
+        sa.Column("name", sa.String(length=127), nullable=False),
+        sa.Column("version", sa.String(length=30), nullable=False),
+        sa.Column("enabled", sa.Boolean(), nullable=True),
+        sa.PrimaryKeyConstraint("id", name=op.f("pk_plugin")),
+    )
+    op.create_table(
+        "role",
+        sa.Column("id", flaschengeist.database.types.Serial(), nullable=False),
+        sa.Column("name", sa.String(length=30), nullable=True),
+        sa.PrimaryKeyConstraint("id", name=op.f("pk_role")),
+        sa.UniqueConstraint("name", name=op.f("uq_role_name")),
+    )
+    op.create_table(
+        "permission",
+        sa.Column("name", sa.String(length=30), nullable=True),
+        sa.Column("id", flaschengeist.database.types.Serial(), nullable=False),
+        sa.Column("plugin", flaschengeist.database.types.Serial(), nullable=True),
+        sa.ForeignKeyConstraint(["plugin"], ["plugin.id"], name=op.f("fk_permission_plugin_plugin")),
+        sa.PrimaryKeyConstraint("id", name=op.f("pk_permission")),
+        sa.UniqueConstraint("name", name=op.f("uq_permission_name")),
+    )
+    op.create_table(
+        "plugin_setting",
+        sa.Column("id", flaschengeist.database.types.Serial(), nullable=False),
+        sa.Column("plugin", flaschengeist.database.types.Serial(), nullable=True),
+        sa.Column("name", sa.String(length=127), nullable=False),
+        sa.Column("value", sa.PickleType(), nullable=True),
+        sa.ForeignKeyConstraint(["plugin"], ["plugin.id"], name=op.f("fk_plugin_setting_plugin_plugin")),
+        sa.PrimaryKeyConstraint("id", name=op.f("pk_plugin_setting")),
+    )
+    op.create_table(
+        "user",
+        sa.Column("userid", sa.String(length=30), nullable=False),
+        sa.Column("display_name", sa.String(length=30), nullable=True),
+        sa.Column("firstname", sa.String(length=50), nullable=False),
+        sa.Column("lastname", sa.String(length=50), nullable=False),
+        sa.Column("deleted", sa.Boolean(), nullable=True),
+        sa.Column("birthday", sa.Date(), nullable=True),
+        sa.Column("mail", sa.String(length=60), nullable=True),
+        sa.Column("id", flaschengeist.database.types.Serial(), nullable=False),
+        sa.Column("avatar", flaschengeist.database.types.Serial(), nullable=True),
+        sa.ForeignKeyConstraint(["avatar"], ["image.id"], name=op.f("fk_user_avatar_image")),
+        sa.PrimaryKeyConstraint("id", name=op.f("pk_user")),
+        sa.UniqueConstraint("userid", name=op.f("uq_user_userid")),
+    )
+    op.create_table(
+        "notification",
+        sa.Column("id", flaschengeist.database.types.Serial(), nullable=False),
+        sa.Column("text", sa.Text(), nullable=True),
+        sa.Column("data", sa.PickleType(), nullable=True),
+        sa.Column("time", flaschengeist.database.types.UtcDateTime(), nullable=False),
+        sa.Column("user", flaschengeist.database.types.Serial(), nullable=False),
+        sa.Column("plugin", flaschengeist.database.types.Serial(), nullable=False),
+        sa.ForeignKeyConstraint(["plugin"], ["plugin.id"], name=op.f("fk_notification_plugin_plugin")),
+        sa.ForeignKeyConstraint(["user"], ["user.id"], name=op.f("fk_notification_user_user")),
+        sa.PrimaryKeyConstraint("id", name=op.f("pk_notification")),
+    )
+    op.create_table(
+        "password_reset",
+        sa.Column("user", flaschengeist.database.types.Serial(), nullable=False),
+        sa.Column("token", sa.String(length=32), nullable=True),
+        sa.Column("expires", flaschengeist.database.types.UtcDateTime(), nullable=True),
+        sa.ForeignKeyConstraint(["user"], ["user.id"], name=op.f("fk_password_reset_user_user")),
+        sa.PrimaryKeyConstraint("user", name=op.f("pk_password_reset")),
+    )
+    op.create_table(
+        "role_x_permission",
+        sa.Column("role_id", flaschengeist.database.types.Serial(), nullable=True),
+        sa.Column("permission_id", flaschengeist.database.types.Serial(), nullable=True),
+        sa.ForeignKeyConstraint(
+            ["permission_id"], ["permission.id"], name=op.f("fk_role_x_permission_permission_id_permission")
+        ),
+        sa.ForeignKeyConstraint(["role_id"], ["role.id"], name=op.f("fk_role_x_permission_role_id_role")),
+    )
+    op.create_table(
+        "session",
+        sa.Column("expires", flaschengeist.database.types.UtcDateTime(), nullable=True),
+        sa.Column("token", sa.String(length=32), nullable=True),
+        sa.Column("lifetime", sa.Integer(), nullable=True),
+        sa.Column("browser", sa.String(length=127), nullable=True),
+        sa.Column("platform", sa.String(length=64), nullable=True),
+        sa.Column("id", flaschengeist.database.types.Serial(), nullable=False),
+        sa.Column("user_id", flaschengeist.database.types.Serial(), nullable=True),
+        sa.ForeignKeyConstraint(["user_id"], ["user.id"], name=op.f("fk_session_user_id_user")),
+        sa.PrimaryKeyConstraint("id", name=op.f("pk_session")),
+        sa.UniqueConstraint("token", name=op.f("uq_session_token")),
+    )
+    op.create_table(
+        "user_attribute",
+        sa.Column("id", flaschengeist.database.types.Serial(), nullable=False),
+        sa.Column("user", flaschengeist.database.types.Serial(), nullable=False),
+        sa.Column("name", sa.String(length=30), nullable=True),
+        sa.Column("value", sa.PickleType(), nullable=True),
+        sa.ForeignKeyConstraint(["user"], ["user.id"], name=op.f("fk_user_attribute_user_user")),
+        sa.PrimaryKeyConstraint("id", name=op.f("pk_user_attribute")),
+    )
+    op.create_table(
+        "user_x_role",
+        sa.Column("user_id", flaschengeist.database.types.Serial(), nullable=True),
+        sa.Column("role_id", flaschengeist.database.types.Serial(), nullable=True),
+        sa.ForeignKeyConstraint(["role_id"], ["role.id"], name=op.f("fk_user_x_role_role_id_role")),
+        sa.ForeignKeyConstraint(["user_id"], ["user.id"], name=op.f("fk_user_x_role_user_id_user")),
+    )
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_table("user_x_role")
+    op.drop_table("user_attribute")
+    op.drop_table("session")
+    op.drop_table("role_x_permission")
+    op.drop_table("password_reset")
+    op.drop_table("notification")
+    op.drop_table("user")
+    op.drop_table("plugin_setting")
+    op.drop_table("permission")
+    op.drop_table("role")
+    op.drop_table("plugin")
+    op.drop_table("image")
+    # ### end Alembic commands ###

flaschengeist/alembic/script.py.mako

@@ -0,0 +1,25 @@
+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from alembic import op
+import sqlalchemy as sa
+import flaschengeist
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision = ${repr(up_revision)}
+down_revision = ${repr(down_revision)}
+branch_labels = ${repr(branch_labels)}
+depends_on = ${repr(depends_on)}
+
+
+def upgrade():
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade():
+    ${downgrades if downgrades else "pass"}

flaschengeist/app.py

@@ -1,18 +1,16 @@
 import enum
 
-from flask import Flask, current_app
+from flask import Flask
 from flask_cors import CORS
 from datetime import datetime, date
 from flask.json import JSONEncoder, jsonify
-from importlib_metadata import entry_points
 from sqlalchemy.exc import OperationalError
 from werkzeug.exceptions import HTTPException
 
 from flaschengeist import logger
+from flaschengeist.controller import pluginController
 from flaschengeist.utils.hook import Hook
-from flaschengeist.plugins import AuthPlugin
-from flaschengeist.controller import roleController
-from flaschengeist.config import config, configure_app
+from flaschengeist.config import configure_app
 
 
 class CustomJSONEncoder(JSONEncoder):
@@ -37,78 +35,47 @@ class CustomJSONEncoder(JSONEncoder):
 
 
 @Hook("plugins.loaded")
-def __load_plugins(app):
-    logger.debug("Search for plugins")
-
+def load_plugins(app: Flask):
     app.config["FG_PLUGINS"] = {}
-    for entry_point in entry_points(group="flaschengeist.plugins"):
-        logger.debug(f"Found plugin: {entry_point.name} ({entry_point.dist.version})")
 
-        if entry_point.name == config["FLASCHENGEIST"]["auth"] or (
-            entry_point.name in config and config[entry_point.name].get("enabled", False)
-        ):
-            logger.debug(f"Load plugin {entry_point.name}")
-            try:
-                plugin = entry_point.load()(entry_point, config=config.get(entry_point.name, {}))
-                if hasattr(plugin, "blueprint") and plugin.blueprint is not None:
-                    app.register_blueprint(plugin.blueprint)
-            except:
-                logger.error(
-                    f"Plugin {entry_point.name} was enabled, but could not be loaded due to an error.",
-                    exc_info=True,
-                )
-                continue
-            if isinstance(plugin, AuthPlugin):
-                if entry_point.name != config["FLASCHENGEIST"]["auth"]:
-                    logger.debug(f"Unload not configured AuthPlugin {entry_point.name}")
-                    del plugin
-                    continue
-                else:
-                    logger.info(f"Using authentication plugin: {entry_point.name}")
-                    app.config["FG_AUTH_BACKEND"] = plugin
-            else:
-                logger.info(f"Using plugin: {entry_point.name}")
-            app.config["FG_PLUGINS"][entry_point.name] = plugin
-        else:
-            logger.debug(f"Skip disabled plugin {entry_point.name}")
-    if "FG_AUTH_BACKEND" not in app.config:
-        logger.error("No authentication plugin configured or authentication plugin not found")
-        raise RuntimeError("No authentication plugin configured or authentication plugin not found")
-
-
-@Hook("plugins.installed")
-def install_all():
-    from flaschengeist.database import db
-
-    db.create_all()
-    db.session.commit()
-    for name, plugin in current_app.config["FG_PLUGINS"].items():
-        if not plugin:
-            logger.debug(f"Skip disabled plugin: {name}")
+    for plugin in pluginController.get_enabled_plugins():
+        logger.debug(f"Searching for enabled plugin {plugin.name}")
+        try:
+            # Load class
+            cls = plugin.entry_point.load()
+            plugin = cls.query.get(plugin.id) if plugin.id is not None else plugin
+            # Custom loading tasks
+            plugin.load()
+            # Register blueprint
+            if hasattr(plugin, "blueprint") and plugin.blueprint is not None:
+                app.register_blueprint(plugin.blueprint)
+        except:
+            logger.error(
+                f"Plugin {plugin.name} was enabled, but could not be loaded due to an error.",
+                exc_info=True,
+            )
             continue
-        logger.info(f"Install plugin {name}")
-        plugin.install()
-        if plugin.permissions:
-            roleController.create_permissions(plugin.permissions)
+        logger.info(f"Loaded plugin: {plugin.name}")
+        app.config["FG_PLUGINS"][plugin.name] = plugin
 
-
-def create_app(test_config=None):
+def create_app(test_config=None, cli=False):
     app = Flask("flaschengeist")
     app.json_encoder = CustomJSONEncoder
     CORS(app)
 
     with app.app_context():
-        from flaschengeist.database import db
+        from flaschengeist.database import db, migrate
 
         configure_app(app, test_config)
         db.init_app(app)
-        __load_plugins(app)
+        migrate.init_app(app, db, compare_type=True)
+        load_plugins(app)
 
     @app.route("/", methods=["GET"])
     def __get_state():
         from . import __version__ as version
 
-        return jsonify({"plugins": app.config["FG_PLUGINS"], "version": version})
+        return jsonify({"plugins": pluginController.get_loaded_plugins(), "version": version})
 
     @app.errorhandler(Exception)
     def handle_exception(e):

flaschengeist/cli/__init__.py

@@ -84,16 +84,18 @@ def cli():
 
 
 def main(*args, **kwargs):
-    # from .plugin_cmd import plugin
+    from .plugin_cmd import plugin
     from .export_cmd import export
     from .docs_cmd import docs
     from .run_cmd import run
+    from .install_cmd import install
 
     # Override logging level
     environ.setdefault("FG_LOGGING", logging.getLevelName(LOGGING_MAX))
 
-    # cli.add_command(plugin)
     cli.add_command(export)
     cli.add_command(docs)
+    cli.add_command(install)
+    cli.add_command(plugin)
     cli.add_command(run)
     cli(*args, **kwargs)

flaschengeist/cli/export_cmd.py

@@ -1,4 +1,5 @@
 import click
+from importlib.metadata import entry_points
 
 
 @click.command()
@@ -8,14 +9,21 @@ import click
 @click.option("--no-core", help="Skip models / types from flaschengeist core", is_flag=True)
 def export(namespace, output, no_core, plugin):
     from flaschengeist import logger, models
-    from flaschengeist.app import get_plugins
     from .InterfaceGenerator import InterfaceGenerator
 
     gen = InterfaceGenerator(namespace, output, logger)
     if not no_core:
         gen.run(models)
     if plugin:
-        for plugin_class in get_plugins():
-            if (len(plugin) == 0 or plugin_class.id in plugin) and plugin_class.models is not None:
-                gen.run(plugin_class.models)
+        for entry_point in entry_points(group="flaschengeist.plugins"):
+            if len(plugin) == 0 or entry_point.name in plugin:
+                try:
+                    plugin = entry_point.load()
+                    gen.run(plugin.models)
+                except:
+                    logger.error(
+                        f"Plugin {entry_point.name} could not be loaded due to an error.",
+                        exc_info=True,
+                    )
+                    continue
     gen.write()

flaschengeist/cli/install_cmd.py

@@ -0,0 +1,23 @@
+import click
+from click.decorators import pass_context
+from flask.cli import with_appcontext
+from flask_migrate import upgrade
+
+from flaschengeist.controller import pluginController
+from flaschengeist.utils.hook import Hook
+
+
+@click.command()
+@with_appcontext
+@pass_context
+@Hook("plugins.installed")
+def install(ctx: click.Context):
+    plugins = pluginController.get_enabled_plugins()
+
+    # Install database
+    upgrade(revision="flaschengeist@head")
+
+    # Install plugins
+    for plugin in plugins:
+        plugin = pluginController.install_plugin(plugin.name)
+        pluginController.enable_plugin(plugin.id)

flaschengeist/cli/plugin_cmd.py

@@ -0,0 +1,145 @@
+import traceback
+import click
+from click.decorators import pass_context
+from flask import current_app
+from flask.cli import with_appcontext
+from importlib.metadata import EntryPoint, entry_points
+
+from flaschengeist import logger
+from flaschengeist.controller import pluginController
+from werkzeug.exceptions import NotFound
+
+
+@click.group()
+def plugin():
+    pass
+
+
+@plugin.command()
+@click.argument("plugin", nargs=-1, required=True, type=str)
+@with_appcontext
+@pass_context
+def enable(ctx, plugin):
+    """Enable one or more plugins"""
+    for name in plugin:
+        click.echo(f"Enabling {name}{'.'*(20-len(name))}", nl=False)
+        try:
+            pluginController.enable_plugin(name)
+            click.secho(" ok", fg="green")
+        except NotFound:
+            click.secho(" not installed / not found", fg="red")
+
+
+@plugin.command()
+@click.argument("plugin", nargs=-1, required=True, type=str)
+@with_appcontext
+@pass_context
+def disable(ctx, plugin):
+    """Disable one or more plugins"""
+    for name in plugin:
+        click.echo(f"Disabling {name}{'.'*(20-len(name))}", nl=False)
+        try:
+            pluginController.disable_plugin(name)
+            click.secho(" ok", fg="green")
+        except NotFound:
+            click.secho(" not installed / not found", fg="red")
+
+
+@plugin.command()
+@click.argument("plugin", nargs=-1, type=str)
+@click.option("--all", help="Install all enabled plugins", is_flag=True)
+@with_appcontext
+@pass_context
+def install(ctx: click.Context, plugin, all):
+    """Install one or more plugins"""
+    all_plugins = entry_points(group="flaschengeist.plugins")
+
+    if all:
+        plugins = [ep.name for ep in all_plugins]
+    elif len(plugin) > 0:
+        plugins = plugin
+        for name in plugin:
+            if not all_plugins.select(name=name):
+                ctx.fail(f"Invalid plugin name, could not find >{name}<")
+    else:
+        ctx.fail("At least one plugin must be specified, or use `--all` flag.")
+
+    for name in plugins:
+        click.echo(f"Installing {name}{'.'*(20-len(name))}", nl=False)
+        try:
+            pluginController.install_plugin(name)
+        except Exception as e:
+            click.secho(" failed", fg="red")
+            if logger.getEffectiveLevel() > 10:
+                ctx.fail(f"[{e.__class__.__name__}] {e}")
+            else:
+                ctx.fail(traceback.format_exc())
+        else:
+            click.secho(" ok", fg="green")
+
+
+@plugin.command()
+@click.argument("plugin", nargs=-1, required=True, type=str)
+@with_appcontext
+@pass_context
+def uninstall(ctx: click.Context, plugin):
+    """Uninstall one or more plugins"""
+
+    plugins = {plg.name: plg for plg in pluginController.get_installed_plugins() if plg.name in plugin}
+    try:
+        for name in plugin:
+            pluginController.disable_plugin(plugins[name])
+            if (
+                click.prompt(
+                    "You are going to uninstall:\n\n"
+                    f"\t{', '.join([plugin_name for plugin_name in plugins.keys()])}\n\n"
+                    "Are you sure?",
+                    default="n",
+                    show_choices=True,
+                    type=click.Choice(["y", "N"], False),
+                ).lower()
+                != "y"
+            ):
+                ctx.exit()
+            click.echo(f"Uninstalling {name}{'.'*(20-len(name))}", nl=False)
+            pluginController.uninstall_plugin(plugins[name])
+            click.secho(" ok", fg="green")
+    except KeyError:
+        ctx.fail(f"Invalid plugin ID, could not find >{name}<")
+
+
+@plugin.command()
+@click.option("--enabled", "-e", help="List only enabled plugins", is_flag=True)
+@click.option("--no-header", "-n", help="Do not show header", is_flag=True)
+@with_appcontext
+def ls(enabled, no_header):
+    def plugin_version(p):
+        if isinstance(p, EntryPoint):
+            return p.dist.version
+        return p.version
+
+    plugins = entry_points(group="flaschengeist.plugins")
+    installed_plugins = {plg.name: plg for plg in pluginController.get_installed_plugins()}
+    loaded_plugins = current_app.config["FG_PLUGINS"].keys()
+
+    if not no_header:
+        print(f"{' '*13}{'name': <20}|   version   | {' ' * 8} state")
+        print("-" * 63)
+    for plugin in plugins:
+        is_installed = plugin.name in installed_plugins.keys()
+        is_enabled = is_installed and installed_plugins[plugin.name].enabled
+        if enabled and is_enabled:
+            continue
+        print(f"{plugin.name: <33}|{plugin_version(plugin): >12} |  ", end="")
+        if is_enabled:
+            if plugin.name in loaded_plugins:
+                print(click.style("      enabled", fg="green"))
+            else:
+                print(click.style("(failed to load)", fg="red"))
+        elif is_installed:
+            print(click.style("     disabled", fg="yellow"))
+        else:
+            print("not installed")
+    for name, plugin in installed_plugins.items():
+        if plugin.enabled and name not in loaded_plugins:
+            print(f"{name: <33}|{'': >12} |" f"{click.style(' failed to load', fg='red')}")

flaschengeist/config.py

@@ -77,17 +77,6 @@ def configure_app(app, test_config=None):
 
     configure_logger()
 
-    # Always enable this builtin plugins!
-    update_dict(
-        config,
-        {
-            "auth": {"enabled": True},
-            "roles": {"enabled": True},
-            "users": {"enabled": True},
-            "scheduler": {"enabled": True},
-        },
-    )
-
     if "secret_key" not in config["FLASCHENGEIST"]:
         logger.critical("No secret key was configured, please configure one for production systems!")
         raise RuntimeError("No secret key was configured")

flaschengeist/controller/imageController.py

@@ -1,15 +1,14 @@
 from datetime import date
-from flask import send_file
 from pathlib import Path
+from flask import send_file
 from PIL import Image as PImage
-
-from werkzeug.exceptions import NotFound, UnprocessableEntity
-from werkzeug.datastructures import FileStorage
 from werkzeug.utils import secure_filename
+from werkzeug.datastructures import FileStorage
+from werkzeug.exceptions import NotFound, UnprocessableEntity
 
-from flaschengeist.models.image import Image
-from flaschengeist.database import db
-from flaschengeist.config import config
+from ..models import Image
+from ..database import db
+from ..config import config
 
 
 def check_mimetype(mime: str):

flaschengeist/controller/messageController.py

@@ -1,5 +1,5 @@
-from flaschengeist.utils.hook import Hook
-from flaschengeist.models.user import User, Role
+from ..utils.hook import Hook
+from ..models import User, Role
 
 
 class Message:

flaschengeist/controller/pluginController.py

@@ -3,57 +3,57 @@
 Used by plugins for setting and notification functionality.
 """
 
-import sqlalchemy
+from typing import Union
+from flask import current_app
+from werkzeug.exceptions import NotFound, BadRequest
+from sqlalchemy.exc import OperationalError, ProgrammingError
+from flask_migrate import upgrade as database_upgrade
+from importlib.metadata import entry_points
+
+from flaschengeist import version as flaschengeist_version
+
+from .. import logger
 from ..database import db
-from ..models.setting import _PluginSetting
-from ..models.notification import Notification
+from ..utils.hook import Hook
+from ..plugins import Plugin, AuthPlugin
+from ..models import Notification
 
 
-def get_setting(plugin_id: str, name: str, **kwargs):
-    """Get plugin setting from database
+__required_plugins = ["users", "roles", "scheduler", "auth"]
 
-    Args:
-        plugin_id: ID of the plugin
-        name: string identifying the setting
-        default: Default value
-    Returns:
-        Value stored in database (native python)
-    Raises:
-        `KeyError` if no such setting exists in the database
-    """
+
+def get_authentication_provider():
+    return [current_app.config["FG_PLUGINS"][plugin.name] for plugin in get_loaded_plugins().values() if isinstance(plugin, AuthPlugin)]
+
+
+def get_loaded_plugins(plugin_name: str = None):
+    """Get loaded plugin(s)"""
+    plugins = current_app.config["FG_PLUGINS"]
+    if plugin_name is not None:
+        plugins = [plugins[plugin_name]]
+    return {name: db.session.merge(plugins[name], load=False) for name in plugins}
+
+
+def get_installed_plugins() -> list[Plugin]:
+    """Get all installed plugins"""
+    return Plugin.query.all()
+
+
+def get_enabled_plugins() -> list[Plugin]:
+    """Get all installed and enabled plugins"""
     try:
-        setting = (
-            _PluginSetting.query.filter(_PluginSetting.plugin == plugin_id).filter(_PluginSetting.name == name).one()
-        )
-        return setting.value
-    except sqlalchemy.orm.exc.NoResultFound:
-        if "default" in kwargs:
-            return kwargs["default"]
-        else:
-            raise KeyError
-
-
-def set_setting(plugin_id: str, name: str, value):
-    """Save setting in database
-
-    Args:
-        plugin_id: ID of the plugin
-        name: String identifying the setting
-        value: Value to be stored
-    """
-    setting = (
-        _PluginSetting.query.filter(_PluginSetting.plugin == plugin_id)
-        .filter(_PluginSetting.name == name)
-        .one_or_none()
-    )
-    if setting is not None:
-        if value is None:
-            db.session.delete(setting)
-        else:
-            setting.value = value
-    else:
-        db.session.add(_PluginSetting(plugin=plugin_id, name=name, value=value))
-    db.session.commit()
+        enabled_plugins = Plugin.query.filter(Plugin.enabled == True).all()
+    except (OperationalError, ProgrammingError) as e:
+        logger.error("Could not connect to database or database not initialized! No plugins enabled!")
+        logger.debug("Can not query enabled plugins", exc_info=True)
+        # Fake load required plugins so the database can at least be installed
+        enabled_plugins = [
+            entry_points(group="flaschengeist.plugins", name=name)[0].load()(
+                name=name, enabled=True, installed_version=flaschengeist_version
+            )
+            for name in __required_plugins
+        ]
+    return enabled_plugins
 
 
 def notify(plugin_id: str, user, text: str, data=None):
@@ -74,3 +74,81 @@ def notify(plugin_id: str, user, text: str, data=None):
         db.session.add(n)
         db.session.commit()
         return n.id
+
+
+@Hook("plugins.installed")
+def install_plugin(plugin_name: str):
+    logger.debug(f"Installing plugin {plugin_name}")
+    entry_point = entry_points(group="flaschengeist.plugins", name=plugin_name)
+    if not entry_point:
+        raise NotFound
+
+    cls = entry_point[0].load()
+    plugin: Plugin = cls.query.filter(Plugin.name == plugin_name).one_or_none()
+    if plugin is None:
+        plugin = cls(name=plugin_name, installed_version=entry_point[0].dist.version)
+        db.session.add(plugin)
+    db.session.commit()
+    # Custom installation steps
+    plugin.install()
+    # Check migrations
+    directory = entry_point[0].dist.locate_file("")
+    for loc in entry_point[0].module.split(".") + ["migrations"]:
+        directory /= loc
+    if directory.exists():
+        database_upgrade(revision=f"{plugin_name}@head")
+
+    return plugin
+
+
+@Hook("plugin.uninstalled")
+def uninstall_plugin(plugin_id: Union[str, int, Plugin]):
+    plugin = disable_plugin(plugin_id)
+    logger.debug(f"Uninstall plugin {plugin.name}")
+    plugin.uninstall()
+    db.session.delete(plugin)
+    db.session.commit()
+
+
+@Hook("plugins.enabled")
+def enable_plugin(plugin_id: Union[str, int]) -> Plugin:
+    logger.debug(f"Enabling plugin {plugin_id}")
+    plugin = Plugin.query
+    if isinstance(plugin_id, str):
+        plugin = plugin.filter(Plugin.name == plugin_id).one_or_none()
+    elif isinstance(plugin_id, int):
+        plugin = plugin.get(plugin_id)
+    else:
+        raise TypeError
+    if plugin is None:
+        raise NotFound
+    plugin.enabled = True
+    db.session.commit()
+    plugin = plugin.entry_point.load().query.get(plugin.id)
+    current_app.config["FG_PLUGINS"][plugin.name] = plugin
+    return plugin
+
+
+@Hook("plugins.disabled")
+def disable_plugin(plugin_id: Union[str, int, Plugin]):
+    logger.debug(f"Disabling plugin {plugin_id}")
+    plugin: Plugin = Plugin.query
+    if isinstance(plugin_id, str):
+        plugin = plugin.filter(Plugin.name == plugin_id).one_or_none()
+    elif isinstance(plugin_id, int):
+        plugin = plugin.get(plugin_id)
+    elif isinstance(plugin_id, Plugin):
+        plugin = plugin_id
+    else:
+        raise TypeError
+    if plugin is None:
+        raise NotFound
+    if plugin.name in __required_plugins:
+        raise BadRequest
+    plugin.enabled = False
+    db.session.commit()
+
+    if plugin.name in current_app.config["FG_PLUGINS"].keys():
+        del current_app.config["FG_PLUGINS"][plugin.name]
+
+    return plugin

flaschengeist/controller/roleController.py

@@ -2,10 +2,10 @@ from typing import Union
 from sqlalchemy.exc import IntegrityError
 from werkzeug.exceptions import BadRequest, Conflict, NotFound
 
-from flaschengeist import logger
-from flaschengeist.models.user import Role, Permission
-from flaschengeist.database import db, case_sensitive
-from flaschengeist.utils.hook import Hook
+from .. import logger
+from ..models import Role, Permission
+from ..database import db, case_sensitive
+from ..utils.hook import Hook
 
 
 def get_all():

flaschengeist/controller/sessionController.py

@@ -1,14 +1,46 @@
 import secrets
-from flaschengeist.models.session import Session
-from flaschengeist.database import db
-from flaschengeist import logger
-from werkzeug.exceptions import Forbidden, Unauthorized
+
 from datetime import datetime, timezone
+from werkzeug.exceptions import Forbidden, Unauthorized
+
+from .. import logger
+from ..models import Session
+from ..database import db
+
 
 lifetime = 1800
 
 
-def validate_token(token, user_agent, permission):
+def __get_user_agent_platform(ua: str):
+    if "Win" in ua:
+        return "windows"
+    if "Mac" in ua:
+        return "macintosh"
+    if "Linux" in ua:
+        return "linux"
+    if "Android" in ua:
+        return "android"
+    if "like Mac" in ua:
+        return "ios"
+    return "unknown"
+
+
+def __get_user_agent_browser(ua: str):
+    ua_str = ua.lower()
+    if "firefox" in ua_str or "fxios" in ua_str:
+        return "firefox"
+    if "safari" in ua_str:
+        return "safari"
+    if "opr/" in ua_str:
+        return "opera"
+    if "edg" in ua_str:
+        return "edge"
+    if "chrom" in ua_str or "crios" in ua_str:
+        return "chrome"
+    return "unknown"
+
+
+def validate_token(token, request_headers, permission):
     """Verify session
 
     Verify a Session and Roles so if the User has permission or not.
@@ -16,7 +48,7 @@ def validate_token(token, user_agent, permission):
 
     Args:
         token: Token to verify.
-        user_agent: User agent of browser to check
+        request_headers: Headers to validate user agent of browser
         permission: Permission needed to access restricted routes
     Returns:
         A Session for this given Token
@@ -28,8 +60,16 @@ def validate_token(token, user_agent, permission):
     session = Session.query.filter_by(token=token).one_or_none()
     if session:
         logger.debug("token found, check if expired or invalid user agent differs")
+
+        platform = request_headers.get("Sec-CH-UA-Platform", None) or __get_user_agent_platform(
+            request_headers.get("User-Agent", "")
+        )
+        browser = request_headers.get("Sec-CH-UA", None) or __get_user_agent_browser(
+            request_headers.get("User-Agent", "")
+        )
+
         if session.expires >= datetime.now(timezone.utc) and (
-            session.browser == user_agent.browser and session.platform == user_agent.platform
+            session.browser == browser and session.platform == platform
         ):
             if not permission or session.user_.has_permission(permission):
                 session.refresh()
@@ -44,12 +84,12 @@ def validate_token(token, user_agent, permission):
     raise Unauthorized
 
 
-def create(user, user_agent=None) -> Session:
+def create(user, request_headers=None) -> Session:
     """Create a Session
 
     Args:
         user: For which User is to create a Session
-        user_agent: User agent to identify session
+        request_headers: Headers to validate user agent of browser
 
     Returns:
             Session: A created Token for User
@@ -60,8 +100,10 @@ def create(user, user_agent=None) -> Session:
         token=token_str,
         user_=user,
         lifetime=lifetime,
-        browser=user_agent.browser,
-        platform=user_agent.platform,
+        platform=request_headers.get("Sec-CH-UA-Platform", None)
+        or __get_user_agent_platform(request_headers.get("User-Agent", "")),
+        browser=request_headers.get("Sec-CH-UA", None)
+        or __get_user_agent_browser(request_headers.get("User-Agent", "")),
     )
     session.refresh()
     db.session.add(session)

flaschengeist/controller/userController.py

@@ -1,21 +1,22 @@
-import secrets
 import re
+import secrets
+
 from io import BytesIO
 from sqlalchemy import exc
-from flask import current_app
+from sqlalchemy_utils import merge_references
 from datetime import datetime, timedelta, timezone
 from flask.helpers import send_file
 from werkzeug.exceptions import NotFound, BadRequest, Forbidden
 
-from flaschengeist import logger
-from flaschengeist.config import config
-from flaschengeist.database import db
-from flaschengeist.models.notification import Notification
-from flaschengeist.utils.hook import Hook
-from flaschengeist.utils.datetime import from_iso_format
-from flaschengeist.utils.foreign_keys import merge_references
-from flaschengeist.models.user import User, Role, _PasswordReset
-from flaschengeist.controller import imageController, messageController, sessionController
+from .. import logger
+from ..config import config
+from ..database import db
+from ..models import Notification, User, Role
+from ..models.user import _PasswordReset
+from ..utils.hook import Hook
+from ..utils.datetime import from_iso_format
+from ..controller import imageController, messageController, pluginController, sessionController
+from ..plugins import AuthPlugin
 
 
 def __active_users():
@@ -40,17 +41,33 @@ def _generate_password_reset(user):
     return reset
 
 
+def get_provider(userid: str):
+    return [p for p in pluginController.get_authentication_provider() if p.user_exists(userid)][0]
+
+
+@Hook
+def update_user(user: User, backend: AuthPlugin):
+    """Update user data from backend
+
+    This is seperate function to provide a hook"""
+    backend.update_user(user)
+    if not user.display_name:
+        user.display_name = "{} {}.".format(user.firstname, user.lastname[0])
+    db.session.commit()
+
+
 def login_user(username, password):
     logger.info("login user {{ {} }}".format(username))
-
-    user = find_user(username)
-    if not user:
-        logger.debug("User not found in Database.")
-        user = User(userid=username)
-        db.session.add(user)
-    if current_app.config["FG_AUTH_BACKEND"].login(user, password):
-        update_user(user)
-        return user
+    for provider in pluginController.get_authentication_provider():
+        uid = provider.login(username, password)
+        if isinstance(uid, str):
+            user = get_user(uid)
+            if not user:
+                logger.debug("User not found in Database.")
+                user = User(userid=uid)
+                db.session.add(user)
+            update_user(user, provider)
+            return user
     return None
 
 
@@ -83,14 +100,6 @@ def reset_password(token: str, password: str):
     db.session.commit()
 
 
-@Hook
-def update_user(user):
-    current_app.config["FG_AUTH_BACKEND"].update_user(user)
-    if not user.display_name:
-        user.display_name = "{} {}.".format(user.firstname, user.lastname[0])
-    db.session.commit()
-
-
 def set_roles(user: User, roles: list[str], create=False):
     """Set roles of user
 
@@ -114,7 +123,7 @@ def set_roles(user: User, roles: list[str], create=False):
     user.roles_ = fetched
 
 
-def modify_user(user, password, new_password=None):
+def modify_user(user: User, password: str, new_password: str = None):
     """Modify given user on the backend
 
     Args:
@@ -126,7 +135,8 @@ def modify_user(user, password, new_password=None):
         NotImplemented: If backend is not capable of this operation
         BadRequest: Password is wrong or other logic issues
     """
-    current_app.config["FG_AUTH_BACKEND"].modify_user(user, password, new_password)
+    provider = get_provider(user.userid)
+    provider.modify_user(user, password, new_password)
 
     if new_password:
         logger.debug(f"Password changed for user {user.userid}")
@@ -164,37 +174,13 @@ def get_user(uid, deleted=False) -> User:
     return user
 
 
-def find_user(uid_mail):
-    """Finding an user by userid or mail in database or auth-backend
-    Args:
-        uid_mail: userid and or mail to search for
-    Returns:
-        User if found or None
-    """
-    mail = uid_mail.split("@")
-    mail = len(mail) == 2 and len(mail[0]) > 0 and len(mail[1]) > 0
-
-    query = User.userid == uid_mail
-    if mail:
-        query |= User.mail == uid_mail
-    user = User.query.filter(query).one_or_none()
-    if user:
-        update_user(user)
-    else:
-        user = current_app.config["FG_AUTH_BACKEND"].find_user(uid_mail, uid_mail if mail else None)
-        if user:
-            if not user.display_name:
-                user.display_name = "{} {}.".format(user.firstname, user.lastname[0])
-            db.session.add(user)
-            db.session.commit()
-    return user
-
-
 @Hook
 def delete_user(user: User):
     """Delete given user"""
     # First let the backend delete the user, as this might fail
-    current_app.config["FG_AUTH_BACKEND"].delete_user(user)
+    provider = get_provider(user.userid)
+    provider.delete_user(user)
+
     # Clear all easy relationships
     user.avatar_ = None
     user._attributes.clear()
@@ -246,10 +232,14 @@ def register(data, passwd=None):
     set_roles(user, roles)
 
     password = passwd if passwd else secrets.token_urlsafe(16)
-    current_app.config["FG_AUTH_BACKEND"].create_user(user, password)
     try:
+        provider = [p for p in pluginController.get_authentication_provider() if p.can_register()][0]
+        provider.create_user(user, password)
         db.session.add(user)
         db.session.commit()
+    except IndexError as e:
+        logger.error("No authentication backend, allowing registering new users, found.")
+        raise e
     except exc.IntegrityError:
         raise BadRequest("userid already in use")
 
@@ -264,7 +254,7 @@ def register(data, passwd=None):
         )
         messageController.send_message(messageController.Message(user, text, subject))
 
-    find_user(user.userid)
+    provider.update_user(user)
 
     return user
 
@@ -273,19 +263,20 @@ def load_avatar(user: User):
     if user.avatar_ is not None:
         return imageController.send_image(image=user.avatar_)
     else:
-        avatar = current_app.config["FG_AUTH_BACKEND"].get_avatar(user)
+        provider = get_provider(user.userid)
+        avatar = provider.get_avatar(user)
         if len(avatar.binary) > 0:
             return send_file(BytesIO(avatar.binary), avatar.mimetype)
     raise NotFound
 
 
 def save_avatar(user, file):
-    current_app.config["FG_AUTH_BACKEND"].set_avatar(user, file)
+    get_provider(user.userid).set_avatar(user, file)
     db.session.commit()
 
 
 def delete_avatar(user):
-    current_app.config["FG_AUTH_BACKEND"].delete_avatar(user)
+    get_provider(user.userid).delete_avatar(user)
     db.session.commit()
 
 

flaschengeist/database.py

@@ -1,33 +0,0 @@
-from flask_sqlalchemy import SQLAlchemy
-from sqlalchemy import MetaData
-
-# https://alembic.sqlalchemy.org/en/latest/naming.html
-metadata = MetaData(
-    naming_convention={
-        "pk": "pk_%(table_name)s",
-        "ix": "ix_%(table_name)s_%(column_0_name)s",
-        "uq": "uq_%(table_name)s_%(column_0_name)s",
-        "ck": "ck_%(table_name)s_%(constraint_name)s",
-        "fk": "fk_%(table_name)s_%(column_0_name)s_%(referred_table_name)s",
-    }
-)
-
-
-db = SQLAlchemy(metadata=metadata)
-
-
-def case_sensitive(s):
-    """
-        Compare string as case sensitive on the database
-
-    Args:
-        s: string to compare
-
-    Example:
-        User.query.filter(User.name == case_sensitive(some_string))
-    """
-    if db.session.bind.dialect.name == "mysql":
-        from sqlalchemy import func
-
-        return func.binary(s)
-    return s

flaschengeist/database/__init__.py

@@ -0,0 +1,74 @@
+import os
+from flask_migrate import Migrate, Config
+from flask_sqlalchemy import SQLAlchemy
+from importlib.metadata import EntryPoint, entry_points, distribution
+from sqlalchemy import MetaData
+
+from flaschengeist.alembic import alembic_script_path
+from flaschengeist import logger
+from flaschengeist.controller import pluginController
+
+# https://alembic.sqlalchemy.org/en/latest/naming.html
+metadata = MetaData(
+    naming_convention={
+        "pk": "pk_%(table_name)s",
+        "ix": "ix_%(table_name)s_%(column_0_name)s",
+        "uq": "uq_%(table_name)s_%(column_0_name)s",
+        "ck": "ck_%(table_name)s_%(constraint_name)s",
+        "fk": "fk_%(table_name)s_%(column_0_name)s_%(referred_table_name)s",
+    }
+)
+
+
+db = SQLAlchemy(metadata=metadata)
+migrate = Migrate()
+
+
+@migrate.configure
+def configure_alembic(config: Config):
+    """Alembic configuration hook
+
+    Inject all migrations paths into the ``version_locations`` config option.
+    This includes even disabled plugins, as simply disabling a plugin without
+    uninstall can break the alembic version management.
+    """
+    # Set main script location
+    config.set_main_option("script_location", alembic_script_path)
+
+    # Set Flaschengeist's migrations
+    migrations = [config.get_main_option("script_location") + "/migrations"]
+
+    # Gather all migration paths
+    for entry_point in entry_points(group="flaschengeist.plugins"):
+        try:
+            directory = entry_point.dist.locate_file("")
+            for loc in entry_point.module.split(".") + ["migrations"]:
+                directory /= loc
+            if directory.exists():
+                logger.debug(f"Adding migration version path {directory}")
+                migrations.append(str(directory.resolve()))
+        except:
+            logger.warning(f"Could not load migrations of plugin {entry_point.name} for database migration.")
+            logger.debug("Plugin loading failed", exc_info=True)
+
+    # write back seperator (we changed it if neither seperator nor locations were specified)
+    config.set_main_option("version_path_separator", os.pathsep)
+    config.set_main_option("version_locations", os.pathsep.join(set(migrations)))
+    return config
+
+
+def case_sensitive(s):
+    """
+        Compare string as case sensitive on the database
+
+    Args:
+        s: string to compare
+
+    Example:
+        User.query.filter(User.name == case_sensitive(some_string))
+    """
+    if db.session.bind.dialect.name == "mysql":
+        from sqlalchemy import func
+
+        return func.binary(s)
+    return s

flaschengeist/database/types.py

@@ -0,0 +1,94 @@
+from importlib import import_module
+import datetime
+
+from sqlalchemy import BigInteger, util
+from sqlalchemy.dialects import mysql, sqlite
+from sqlalchemy.types import DateTime, TypeDecorator
+
+
+class ModelSerializeMixin:
+    """Mixin class used for models to serialize them automatically
+    Ignores private and protected members as well as members marked as not to publish (name ends with _)
+    """
+
+    def __is_optional(self, param):
+        import typing
+
+        module = import_module("flaschengeist.models").__dict__
+
+        hint = typing.get_type_hints(self.__class__, globalns=module)[param]
+        if (
+            typing.get_origin(hint) is typing.Union
+            and len(typing.get_args(hint)) == 2
+            and typing.get_args(hint)[1] is type(None)
+        ):
+            return getattr(self, param) is None
+
+    def serialize(self):
+        """Serialize class to dict
+        Returns:
+            Dict of all not private or protected annotated member variables.
+        """
+        d = {
+            param: getattr(self, param)
+            for param in self.__class__.__annotations__
+            if not param.startswith("_") and not param.endswith("_") and not self.__is_optional(param)
+        }
+        if len(d) == 1:
+            key, value = d.popitem()
+            return value
+        return d
+
+    def __str__(self) -> str:
+        return self.serialize().__str__()
+
+
+class Serial(TypeDecorator):
+    """Same as MariaDB Serial used for IDs"""
+
+    cache_ok = True
+    impl = BigInteger().with_variant(mysql.BIGINT(unsigned=True), "mysql").with_variant(sqlite.INTEGER(), "sqlite")
+
+    # https://alembic.sqlalchemy.org/en/latest/autogenerate.html?highlight=custom%20column#affecting-the-rendering-of-types-themselves
+    def __repr__(self) -> str:
+        return util.generic_repr(self)
+
+
+class UtcDateTime(TypeDecorator):
+    """Almost equivalent to `sqlalchemy.types.DateTime` with
+    ``timezone=True`` option, but it differs from that by:
+
+    - Never silently take naive :class:`datetime.datetime`, instead it
+      always raise :exc:`ValueError` unless time zone aware value.
+    - :class:`datetime.datetime` value's :attr:`datetime.datetime.tzinfo`
+      is always converted to UTC.
+    - Unlike SQLAlchemy's built-in :class:`sqlalchemy.types.DateTime`,
+      it never return naive :class:`datetime.datetime`, but time zone
+      aware value, even with SQLite or MySQL.
+    """
+
+    cache_ok = True
+    impl = DateTime(timezone=True)
+
+    @staticmethod
+    def current_utc():
+        return datetime.datetime.now(tz=datetime.timezone.utc)
+
+    def process_bind_param(self, value, dialect):
+        if value is not None:
+            if not isinstance(value, datetime.datetime):
+                raise TypeError("expected datetime.datetime, not " + repr(value))
+            elif value.tzinfo is None:
+                raise ValueError("naive datetime is disallowed")
+            return value.astimezone(datetime.timezone.utc)
+
+    def process_result_value(self, value, dialect):
+        if value is not None:
+            if value.tzinfo is not None:
+                value = value.astimezone(datetime.timezone.utc)
+            value = value.replace(tzinfo=datetime.timezone.utc)
+        return value
+
+    # https://alembic.sqlalchemy.org/en/latest/autogenerate.html?highlight=custom%20column#affecting-the-rendering-of-types-themselves
+    def __repr__(self) -> str:
+        return util.generic_repr(self)

flaschengeist/models/__init__.py

@@ -1,87 +1,5 @@
-import sys
-import datetime
-
-from sqlalchemy import BigInteger
-from sqlalchemy.dialects import mysql, sqlite
-from sqlalchemy.types import DateTime, TypeDecorator
-
-
-class ModelSerializeMixin:
-    """Mixin class used for models to serialize them automatically
-    Ignores private and protected members as well as members marked as not to publish (name ends with _)
-    """
-
-    def __is_optional(self, param):
-        if sys.version_info < (3, 8):
-            return False
-
-        import typing
-
-        hint = typing.get_type_hints(self.__class__)[param]
-        if (
-            typing.get_origin(hint) is typing.Union
-            and len(typing.get_args(hint)) == 2
-            and typing.get_args(hint)[1] is type(None)
-        ):
-            return getattr(self, param) is None
-
-    def serialize(self):
-        """Serialize class to dict
-        Returns:
-            Dict of all not private or protected annotated member variables.
-        """
-        d = {
-            param: getattr(self, param)
-            for param in self.__class__.__annotations__
-            if not param.startswith("_") and not param.endswith("_") and not self.__is_optional(param)
-        }
-        if len(d) == 1:
-            key, value = d.popitem()
-            return value
-        return d
-
-    def __str__(self) -> str:
-        return self.serialize().__str__()
-
-
-class Serial(TypeDecorator):
-    """Same as MariaDB Serial used for IDs"""
-
-    cache_ok = True
-    impl = BigInteger().with_variant(mysql.BIGINT(unsigned=True), "mysql").with_variant(sqlite.INTEGER(), "sqlite")
-
-
-class UtcDateTime(TypeDecorator):
-    """Almost equivalent to `sqlalchemy.types.DateTime` with
-    ``timezone=True`` option, but it differs from that by:
-
-    - Never silently take naive :class:`datetime.datetime`, instead it
-      always raise :exc:`ValueError` unless time zone aware value.
-    - :class:`datetime.datetime` value's :attr:`datetime.datetime.tzinfo`
-      is always converted to UTC.
-    - Unlike SQLAlchemy's built-in :class:`sqlalchemy.types.DateTime`,
-      it never return naive :class:`datetime.datetime`, but time zone
-      aware value, even with SQLite or MySQL.
-    """
-
-    cache_ok = True
-    impl = DateTime(timezone=True)
-
-    @staticmethod
-    def current_utc():
-        return datetime.datetime.now(tz=datetime.timezone.utc)
-
-    def process_bind_param(self, value, dialect):
-        if value is not None:
-            if not isinstance(value, datetime.datetime):
-                raise TypeError("expected datetime.datetime, not " + repr(value))
-            elif value.tzinfo is None:
-                raise ValueError("naive datetime is disallowed")
-            return value.astimezone(datetime.timezone.utc)
-
-    def process_result_value(self, value, dialect):
-        if value is not None:
-            if value.tzinfo is not None:
-                value = value.astimezone(datetime.timezone.utc)
-            value = value.replace(tzinfo=datetime.timezone.utc)
-        return value
+from .session import *
+from .user import *
+from .plugin import *
+from .notification import *
+from .image import *

flaschengeist/models/image.py

@@ -1,19 +1,19 @@
-from __future__ import annotations  # TODO: Remove if python requirement is >= 3.10
+from __future__ import annotations  # TODO: Remove if python requirement is >= 3.12 (? PEP 563 is defered)
 
 from sqlalchemy import event
 from pathlib import Path
 
-from . import ModelSerializeMixin, Serial
 from ..database import db
+from ..database.types import ModelSerializeMixin, Serial
 
 
 class Image(db.Model, ModelSerializeMixin):
     __tablename__ = "image"
-    id: int = db.Column("id", Serial, primary_key=True)
-    filename_: str = db.Column(db.String(127), nullable=False)
-    mimetype_: str = db.Column(db.String(30), nullable=False)
-    thumbnail_: str = db.Column(db.String(127))
-    path_: str = db.Column(db.String(127))
+    id: int = db.Column(Serial, primary_key=True)
+    filename_: str = db.Column("filename", db.String(255), nullable=False)
+    mimetype_: str = db.Column("mimetype", db.String(127), nullable=False)
+    thumbnail_: str = db.Column("thumbnail", db.String(255))
+    path_: str = db.Column("path", db.String(255))
 
     def open(self):
         return open(self.path_, "rb")

flaschengeist/models/notification.py

@@ -1,19 +1,26 @@
-from __future__ import annotations  # TODO: Remove if python requirement is >= 3.10
+from __future__ import annotations  # TODO: Remove if python requirement is >= 3.12 (? PEP 563 is defered)
+
 from datetime import datetime
 from typing import Any
 
-from . import Serial, UtcDateTime, ModelSerializeMixin
 from ..database import db
-from .user import User
+from ..database.types import Serial, UtcDateTime, ModelSerializeMixin
 
 
 class Notification(db.Model, ModelSerializeMixin):
     __tablename__ = "notification"
     id: int = db.Column("id", Serial, primary_key=True)
-    plugin: str = db.Column(db.String(127), nullable=False)
     text: str = db.Column(db.Text)
     data: Any = db.Column(db.PickleType(protocol=4))
     time: datetime = db.Column(UtcDateTime, nullable=False, default=UtcDateTime.current_utc)
 
-    user_id_: int = db.Column("user_id", Serial, db.ForeignKey("user.id"), nullable=False)
+    user_id_: int = db.Column("user", Serial, db.ForeignKey("user.id"), nullable=False)
+    plugin_id_: int = db.Column("plugin", Serial, db.ForeignKey("plugin.id"), nullable=False)
     user_: User = db.relationship("User")
+    plugin_: Plugin = db.relationship(
+        "Plugin", backref=db.backref("notifications_", cascade="all, delete, delete-orphan")
+    )
+
+    @property
+    def plugin(self):
+        return self.plugin_.name

flaschengeist/models/plugin.py

@@ -0,0 +1,72 @@
+from __future__ import annotations  # TODO: Remove if python requirement is >= 3.12 (? PEP 563 is defered)
+
+from typing import Any
+from sqlalchemy.orm.collections import attribute_mapped_collection
+
+from ..database import db
+from ..database.types import Serial
+
+
+class PluginSetting(db.Model):
+    __tablename__ = "plugin_setting"
+    id = db.Column("id", Serial, primary_key=True)
+    plugin_id: int = db.Column("plugin", Serial, db.ForeignKey("plugin.id"))
+    name: str = db.Column(db.String(127), nullable=False)
+    value: Any = db.Column(db.PickleType(protocol=4))
+
+
+class BasePlugin(db.Model):
+    __tablename__ = "plugin"
+    id: int = db.Column("id", Serial, primary_key=True)
+    name: str = db.Column(db.String(127), nullable=False)
+    """Name of the plugin, loaded from distribution"""
+    installed_version: str = db.Column("version", db.String(30), nullable=False)
+    """The latest installed version"""
+    enabled: bool = db.Column(db.Boolean, default=False)
+    """Enabled state of the plugin"""
+    permissions: list = db.relationship(
+        "Permission", cascade="all, delete, delete-orphan", back_populates="plugin_", lazy="select"
+    )
+    """Optional list of custom permissions used by the plugin
+    
+    A good style is to name the permissions with a prefix related to the plugin name,
+    to prevent clashes with other plugins. E. g. instead of *delete* use *plugin_delete*.
+    """
+
+    __settings: dict[str, "PluginSetting"] = db.relationship(
+        "PluginSetting",
+        collection_class=attribute_mapped_collection("name"),
+        cascade="all, delete, delete-orphan",
+        lazy="select",
+    )
+
+    def get_setting(self, name: str, **kwargs):
+        """Get plugin setting
+
+        Args:
+            name: string identifying the setting
+            default: Default value
+        Returns:
+            Value stored in database (native python)
+        Raises:
+            `KeyError` if no such setting exists in the database
+        """
+        try:
+            return self.__settings[name].value
+        except KeyError as e:
+            if "default" in kwargs:
+                return kwargs["default"]
+            raise e
+
+    def set_setting(self, name: str, value):
+        """Save setting in database
+
+        Args:
+            name: String identifying the setting
+            value: Value to be stored
+        """
+        if value is None and name in self.__settings.keys():
+            del self.__settings[name]
+        else:
+            setting = self.__settings.setdefault(name, PluginSetting(plugin_id=self.id, name=name, value=None))
+            setting.value = value

flaschengeist/models/session.py

@@ -1,12 +1,11 @@
-from __future__ import annotations  # TODO: Remove if python requirement is >= 3.10
+from __future__ import annotations  # TODO: Remove if python requirement is >= 3.12 (? PEP 563 is defered)
 
 from datetime import datetime, timedelta, timezone
-
-from . import ModelSerializeMixin, UtcDateTime, Serial
-from .user import User
-from flaschengeist.database import db
 from secrets import compare_digest
-from flaschengeist import logger
+
+from .. import logger
+from ..database import db
+from ..database.types import ModelSerializeMixin, UtcDateTime, Serial
 
 
 class Session(db.Model, ModelSerializeMixin):
@@ -22,8 +21,8 @@ class Session(db.Model, ModelSerializeMixin):
     expires: datetime = db.Column(UtcDateTime)
     token: str = db.Column(db.String(32), unique=True)
     lifetime: int = db.Column(db.Integer)
-    browser: str = db.Column(db.String(30))
-    platform: str = db.Column(db.String(30))
+    browser: str = db.Column(db.String(127))
+    platform: str = db.Column(db.String(64))
     userid: str = ""
 
     _id = db.Column("id", Serial, primary_key=True)

flaschengeist/models/setting.py

@@ -1,13 +0,0 @@
-from __future__ import annotations  # TODO: Remove if python requirement is >= 3.10
-from typing import Any
-
-from . import Serial
-from ..database import db
-
-
-class _PluginSetting(db.Model):
-    __tablename__ = "plugin_setting"
-    id = db.Column("id", Serial, primary_key=True)
-    plugin: str = db.Column(db.String(30))
-    name: str = db.Column(db.String(30), nullable=False)
-    value: Any = db.Column(db.PickleType(protocol=4))

flaschengeist/models/user.py

@@ -1,14 +1,11 @@
-from __future__ import annotations  # TODO: Remove if python requirement is >= 3.10
+from __future__ import annotations  # TODO: Remove if python requirement is >= 3.12 (? PEP 563 is defered)
 
-from flask import url_for
 from typing import Optional
 from datetime import date, datetime
 from sqlalchemy.orm.collections import attribute_mapped_collection
 
 from ..database import db
-from . import ModelSerializeMixin, UtcDateTime, Serial
-from .image import Image
-
+from ..database.types import ModelSerializeMixin, UtcDateTime, Serial
 
 association_table = db.Table(
     "user_x_role",
@@ -27,7 +24,9 @@ class Permission(db.Model, ModelSerializeMixin):
     __tablename__ = "permission"
     name: str = db.Column(db.String(30), unique=True)
 
-    _id = db.Column("id", Serial, primary_key=True)
+    id_ = db.Column("id", Serial, primary_key=True)
+    plugin_id_: int = db.Column("plugin", Serial, db.ForeignKey("plugin.id"))
+    plugin_ = db.relationship("Plugin", lazy="select", back_populates="permissions", enable_typechecks=False)
 
 
 class Role(db.Model, ModelSerializeMixin):
@@ -66,9 +65,7 @@ class User(db.Model, ModelSerializeMixin):
     # Protected stuff for backend use only
     id_ = db.Column("id", Serial, primary_key=True)
     roles_: list[Role] = db.relationship("Role", secondary=association_table, cascade="save-update, merge")
-    sessions_: list["Session"] = db.relationship(
-        "Session", back_populates="user_", cascade="all, delete, delete-orphan"
-    )
+    sessions_: list[Session] = db.relationship("Session", back_populates="user_", cascade="all, delete, delete-orphan")
     avatar_: Optional[Image] = db.relationship("Image", cascade="all, delete, delete-orphan", single_parent=True)
     reset_requests_: list["_PasswordReset"] = db.relationship("_PasswordReset", cascade="all, delete, delete-orphan")
 

flaschengeist/plugins/__init__.py

@@ -3,124 +3,130 @@
 .. include:: docs/plugin_development.md
 
 """
-from importlib_metadata import Distribution, EntryPoint
-from werkzeug.datastructures import FileStorage
-from werkzeug.exceptions import MethodNotAllowed, NotFound
 
-from flaschengeist.models.user import _Avatar, User
+from typing import Union
+from importlib.metadata import entry_points
+from werkzeug.exceptions import NotFound
+from werkzeug.datastructures import FileStorage
+
+from flaschengeist.models.plugin import BasePlugin
+from flaschengeist.models.user import _Avatar, Permission
 from flaschengeist.utils.hook import HookBefore, HookAfter
 
+__all__ = [
+    "plugins_installed",
+    "plugins_loaded",
+    "before_delete_user",
+    "before_role_updated",
+    "before_update_user",
+    "after_role_updated",
+    "Plugin",
+    "AuthPlugin",
+]
+
+# Documentation hacks, see https://github.com/mitmproxy/pdoc/issues/320
 plugins_installed = HookAfter("plugins.installed")
-"""Hook decorator for when all plugins are installed
-    Possible use case would be to populate the database with some presets.
+plugins_installed.__doc__ = """Hook decorator for when all plugins are installed
 
-    Args:
-        hook_result: void (kwargs)
+Possible use case would be to populate the database with some presets.
 """
+
 plugins_loaded = HookAfter("plugins.loaded")
-"""Hook decorator for when all plugins are loaded
-    Possible use case would be to check if a specific other plugin is loaded and change own behavior
+plugins_loaded.__doc__ = """Hook decorator for when all plugins are loaded
 
-    Args:
-        app: Current flask app instance (args)
-        hook_result: void (kwargs)
+Possible use case would be to check if a specific other plugin is loaded and change own behavior
+
+Passed args:
+    - *app:* Current flask app instance (args)
 """
+
 before_role_updated = HookBefore("update_role")
-"""Hook decorator for when roles are modified
-Args:
-    role: Role object to modify
-    new_name: New name if the name was changed (None if delete)
+before_role_updated.__doc__ = """Hook decorator for when roles are modified
+    
+Passed args:
+    - *role:* `flaschengeist.models.user.Role` to modify
+    - *new_name:* New name if the name was changed (*None* if delete)
 """
+
 after_role_updated = HookAfter("update_role")
-"""Hook decorator for when roles are modified
-Args:
-    role: Role object containing the modified role
-    new_name: New name if the name was changed (None if deleted)
+after_role_updated.__doc__ = """Hook decorator for when roles are modified
+
+Passed args:
+    - *role:* modified `flaschengeist.models.user.Role`
+    - *new_name:* New name if the name was changed (*None* if deleted)
 """
+
 before_update_user = HookBefore("update_user")
-"""Hook decorator, when ever an user update is done, this is called before.
-Args:
-    user: User object
+before_update_user.__doc__ = """Hook decorator, when ever an user update is done, this is called before.
+
+Passed args:
+    - *user:* `flaschengeist.models.user.User` object
 """
+
 before_delete_user = HookBefore("delete_user")
-"""Hook decorator,this is called before an user gets deleted.
-Args:
-    user: User object
+before_delete_user.__doc__ = """Hook decorator,this is called before an user gets deleted.
+
+Passed args:
+    - *user:* `flaschengeist.models.user.User` object
 """
 
 
-class Plugin:
+class Plugin(BasePlugin):
     """Base class for all Plugins
 
-    If your class uses custom models add a static property called ``models``.
+    All plugins must derived from this class.
+
+    Optional:
+        - *blueprint*: `flask.Blueprint` providing your routes
+        - *permissions*: List of your custom permissions
+        - *models*: Your models, used for API export
     """
 
-    name: str
-    """Name of the plugin, loaded from EntryPoint"""
-
-    version: str
-    """Version of the plugin, loaded from Distribution"""
-
-    dist: Distribution
-    """Distribution of this plugin"""
-
     blueprint = None
     """Optional `flask.blueprint` if the plugin uses custom routes"""
 
-    permissions: list[str] = []
-    """Optional list of custom permissions used by the plugin
-    
-    A good style is to name the permissions with a prefix related to the plugin name,
-    to prevent clashes with other plugins. E. g. instead of *delete* use *plugin_delete*.
-    """
-
     models = None
     """Optional module containing the SQLAlchemy models used by the plugin"""
 
-    migrations_path = None
-    """Optional location of the path to migration files, required if custome db tables are used"""
+    @property
+    def version(self) -> str:
+        """Version of the plugin, loaded from Distribution"""
+        return self.dist.version
 
-    def __init__(self, entry_point: EntryPoint, config=None):
-        """Constructor called by create_app
-        Args:
-            config: Dict configuration containing the plugin section
-        """
-        self.version = entry_point.dist.version
-        self.name = entry_point.name
-        self.dist = entry_point.dist
+    @property
+    def dist(self):
+        """Distribution of this plugin"""
+        return self.entry_point.dist
+
+    @property
+    def entry_point(self):
+        ep = entry_points(group="flaschengeist.plugins", name=self.name)
+        return ep[0]
+
+    def load(self):
+        """__init__ like function that is called when the plugin is initially loaded"""
+        pass
 
     def install(self):
         """Installation routine
 
-        Is always called with Flask application context
+        Also called when updating the plugin, compare `version` and `installed_version`.
+
+        Is always called with Flask application context,
+        it is called after the plugin permissions are installed.
         """
         pass
 
-    def get_setting(self, name: str, **kwargs):
-        """Get plugin setting from database
+    def uninstall(self):
+        """Uninstall routine
 
-        Args:
-            name: string identifying the setting
-            default: Default value
-        Returns:
-            Value stored in database (native python)
-        Raises:
-            `KeyError` if no such setting exists in the database
+        If the plugin has custom database tables, make sure to remove them.
+        This can be either done by downgrading the plugin *head* to the *base*.
+        Or use custom migrations for the uninstall and *stamp* some version.
+
+        Is always called with Flask application context.
         """
-        from ..controller import pluginController
-
-        return pluginController.get_setting(self.name, name, **kwargs)
-
-    def set_setting(self, name: str, value):
-        """Save setting in database
-
-        Args:
-            name: String identifying the setting
-            value: Value to be stored
-        """
-        from ..controller import pluginController
-
-        return pluginController.set_setting(self.name, name, value)
+        pass
 
     def notify(self, user, text: str, data=None):
         """Create a new notification for an user
@@ -146,35 +152,53 @@ class Plugin:
         """
         return {"version": self.version, "permissions": self.permissions}
 
+    def install_permissions(self, permissions: list[str]):
+        """Helper for installing a list of strings as permissions
+
+        Args:
+            permissions: List of permissions to install
+        """
+        cur_perm = set(x.name for x in self.permissions)
+        all_perm = set(permissions)
+
+        new_perms = all_perm - cur_perm
+        self.permissions = list(filter(lambda x: x.name in permissions, self.permissions)) + [
+            Permission(name=x, plugin_=self) for x in new_perms
+        ]
+
 
 class AuthPlugin(Plugin):
-    def login(self, user, pw):
+    """Base class for all authentification plugins
+
+    See also `Plugin`
+    """
+
+    def login(self, login_name, password) -> Union[bool, str]:
         """Login routine, MUST BE IMPLEMENTED!
 
         Args:
-            user: User class containing at least the uid
-            pw: given password
+            login_name: The name the user entered
+            password: The password the user used to log in
         Returns:
-            Must return False if not found or invalid credentials, True if success
+            Must return False if not found or invalid credentials, otherwise the UID is returned
         """
         raise NotImplemented
 
-    def update_user(self, user):
+    def update_user(self, user: "User"):
         """If backend is using external data, then update this user instance with external data
         Args:
             user: User object
         """
         pass
 
-    def find_user(self, userid, mail=None):
-        """Find an user by userid or mail
+    def user_exists(self, userid) -> bool:
+        """Check if user exists on this backend
         Args:
             userid: Userid to search
-            mail: If set, mail to search
         Returns:
-            None or User
+            True or False
         """
-        return None
+        raise NotImplemented
 
     def modify_user(self, user, password, new_password=None):
         """If backend is using (writeable) external data, then update the external database with the user provided.
@@ -185,11 +209,14 @@ class AuthPlugin(Plugin):
             password: Password (some backends need the current password for changes) if None force edit (admin)
             new_password: If set a password change is requested
         Raises:
-            NotImplemented: If backend does not support this feature (or no password change)
             BadRequest: Logic error, e.g. password is wrong.
             Error: Other errors if backend went mad (are not handled and will result in a 500 error)
         """
-        raise NotImplemented
+        pass
+
+    def can_register(self):
+        """Check if this backend allows to register new users"""
+        return False
 
     def create_user(self, user, password):
         """If backend is using (writeable) external data, then create a new user on the external database.
@@ -199,7 +226,7 @@ class AuthPlugin(Plugin):
             password: string
 
         """
-        raise MethodNotAllowed
+        raise NotImplementedError
 
     def delete_user(self, user):
         """If backend is using (writeable) external data, then delete the user from external database.
@@ -208,9 +235,9 @@ class AuthPlugin(Plugin):
             user: User object
 
         """
-        raise MethodNotAllowed
+        raise NotImplementedError
 
-    def get_avatar(self, user: User) -> _Avatar:
+    def get_avatar(self, user) -> _Avatar:
         """Retrieve avatar for given user (if supported by auth backend)
 
         Default behavior is to use native Image objects,
@@ -224,14 +251,14 @@ class AuthPlugin(Plugin):
         """
         raise NotFound
 
-    def set_avatar(self, user: User, file: FileStorage):
+    def set_avatar(self, user, file: FileStorage):
         """Set the avatar for given user (if supported by auth backend)
 
         Default behavior is to use native Image objects stored on the Flaschengeist server
 
         Args:
             user: User to set the avatar for
-            file: FileStorage object uploaded by the user
+            file: `werkzeug.datastructures.FileStorage` uploaded by the user
         Raises:
             MethodNotAllowed: If not supported by Backend
             Any valid HTTP exception
@@ -242,7 +269,7 @@ class AuthPlugin(Plugin):
 
         user.avatar_ = imageController.upload_image(file)
 
-    def delete_avatar(self, user: User):
+    def delete_avatar(self, user):
         """Delete the avatar for given user (if supported by auth backend)
 
         Default behavior is to use the imageController and native Image objects.

flaschengeist/plugins/auth/__init__.py

@@ -13,8 +13,7 @@ from flaschengeist.controller import sessionController, userController
 
 
 class AuthRoutePlugin(Plugin):
-    name = "auth"
-    blueprint = Blueprint(name, __name__)
+    blueprint = Blueprint("auth", __name__)
 
 
 @AuthRoutePlugin.blueprint.route("/auth", methods=["POST"])
@@ -41,7 +40,7 @@ def login():
     user = userController.login_user(userid, password)
     if not user:
         raise Unauthorized
-    session = sessionController.create(user, user_agent=request.user_agent)
+    session = sessionController.create(user, request_headers=request.headers)
     logger.debug(f"token is {session.token}")
     logger.info(f"User {userid} logged in.")
 

flaschengeist/plugins/auth_ldap/__init__.py

@@ -11,69 +11,70 @@ from werkzeug.exceptions import BadRequest, InternalServerError, NotFound
 from werkzeug.datastructures import FileStorage
 
 from flaschengeist import logger
+from flaschengeist.config import config
 from flaschengeist.controller import userController
-from flaschengeist.models.user import User, Role, _Avatar
+from flaschengeist.models import User, Role
+from flaschengeist.models.user import _Avatar
 from flaschengeist.plugins import AuthPlugin, before_role_updated
 
 
 class AuthLDAP(AuthPlugin):
-    def __init__(self, entry_point, config):
-        super().__init__(entry_point)
+    def load(self):
+        self.config = config.get("auth_ldap", None)
+        if self.config is None:
+            logger.error("auth_ldap was not configured in flaschengeist.toml", exc_info=True)
+            raise InternalServerError
         app.config.update(
-            LDAP_SERVER=config.get("host", "localhost"),
-            LDAP_PORT=config.get("port", 389),
-            LDAP_BINDDN=config.get("bind_dn", None),
-            LDAP_SECRET=config.get("secret", None),
-            LDAP_USE_SSL=config.get("use_ssl", False),
+            LDAP_SERVER=self.config.get("host", "localhost"),
+            LDAP_PORT=self.config.get("port", 389),
+            LDAP_BINDDN=self.config.get("bind_dn", None),
+            LDAP_SECRET=self.config.get("secret", None),
+            LDAP_USE_SSL=self.config.get("use_ssl", False),
             # That's not TLS, its dirty StartTLS on unencrypted LDAP
             LDAP_USE_TLS=False,
             LDAP_TLS_VERSION=ssl.PROTOCOL_TLS,
             FORCE_ATTRIBUTE_VALUE_AS_LIST=True,
         )
         if "ca_cert" in config:
-            app.config["LDAP_CA_CERTS_FILE"] = config["ca_cert"]
+            app.config["LDAP_CA_CERTS_FILE"] = self.config["ca_cert"]
         else:
             # Default is CERT_REQUIRED
             app.config["LDAP_REQUIRE_CERT"] = ssl.CERT_OPTIONAL
         self.ldap = LDAPConn(app)
-        self.base_dn = config["base_dn"]
-        self.search_dn = config.get("search_dn", "ou=people,{base_dn}").format(base_dn=self.base_dn)
-        self.group_dn = config.get("group_dn", "ou=group,{base_dn}").format(base_dn=self.base_dn)
-        self.password_hash = config.get("password_hash", "SSHA").upper()
-        self.object_classes = config.get("object_classes", ["inetOrgPerson"])
-        self.user_attributes: dict = config.get("user_attributes", {})
-        self.dn_template = config.get("dn_template")
+        self.base_dn = self.config["base_dn"]
+        self.search_dn = self.config.get("search_dn", "ou=people,{base_dn}").format(base_dn=self.base_dn)
+        self.group_dn = self.config.get("group_dn", "ou=group,{base_dn}").format(base_dn=self.base_dn)
+        self.password_hash = self.config.get("password_hash", "SSHA").upper()
+        self.object_classes = self.config.get("object_classes", ["inetOrgPerson"])
+        self.user_attributes: dict = self.config.get("user_attributes", {})
+        self.dn_template = self.config.get("dn_template")
 
         # TODO: might not be set if modify is called
-        self.root_dn = config.get("root_dn", None)
-        self.root_secret = config.get("root_secret", None)
+        self.root_dn = self.config.get("root_dn", None)
+        self.root_secret = self.config.get("root_secret", None)
 
         @before_role_updated
         def _role_updated(role, new_name):
             logger.debug(f"LDAP: before_role_updated called with ({role}, {new_name})")
             self.__modify_role(role, new_name)
 
-    def login(self, user, password):
-        if not user:
+    def login(self, login_name, password):
+        if not login_name:
             return False
-        return self.ldap.authenticate(user.userid, password, "uid", self.base_dn)
+        return login_name if self.ldap.authenticate(login_name, password, "uid", self.base_dn) else False
 
-    def find_user(self, userid, mail=None):
-        attr = self.__find(userid, mail)
-        if attr is not None:
-            user = User(userid=attr["uid"][0])
-            self.__update(user, attr)
-            return user
+    def user_exists(self, userid) -> bool:
+        attr = self.__find(userid, None)
+        return attr is not None
 
     def update_user(self, user):
         attr = self.__find(user.userid)
         self.__update(user, attr)
 
-    def create_user(self, user, password):
-        if self.root_dn is None:
-            logger.error("root_dn missing in ldap config!")
-            raise InternalServerError
+    def can_register(self):
+        return self.root_dn is not None
 
+    def create_user(self, user, password):
         try:
             ldap_conn = self.ldap.connect(self.root_dn, self.root_secret)
             attributes = self.user_attributes.copy()
@@ -305,3 +306,5 @@ class AuthLDAP(AuthPlugin):
 
         except (LDAPPasswordIsMandatoryError, LDAPBindError):
             raise BadRequest
+        except IndexError as e:
+            logger.error("Roles in LDAP", exc_info=True)

flaschengeist/plugins/auth_ldap/cli.py

@@ -1,6 +1,7 @@
 import click
 from flask import current_app
 from flask.cli import with_appcontext
+from werkzeug.exceptions import NotFound
 
 
 @click.command(no_args_is_help=True)
@@ -13,8 +14,10 @@ def ldap(ctx, sync):
         from flaschengeist.controller import userController
         from flaschengeist.plugins.auth_ldap import AuthLDAP
         from ldap3 import SUBTREE
+        from flaschengeist.models import User
+        from flaschengeist.database import db
 
-        auth_ldap: AuthLDAP = current_app.config.get("FG_AUTH_BACKEND")
+        auth_ldap: AuthLDAP = current_app.config.get("FG_PLUGINS").get("auth_ldap")
         if auth_ldap is None or not isinstance(auth_ldap, AuthLDAP):
             ctx.fail("auth_ldap plugin not found or not enabled!")
         conn = auth_ldap.ldap.connection
@@ -24,4 +27,9 @@ def ldap(ctx, sync):
         ldap_users_response = conn.response
         for ldap_user in ldap_users_response:
             uid = ldap_user["attributes"]["uid"][0]
-            userController.find_user(uid)
+            try:
+                user = userController.get_user(uid)
+            except NotFound:
+                user = User(userid=uid)
+                db.session.add(user)
+            userController.update_user(user, auth_ldap)

flaschengeist/plugins/auth_plain/__init__.py

@@ -7,42 +7,25 @@ import os
 import hashlib
 import binascii
 from werkzeug.exceptions import BadRequest
-from flaschengeist.plugins import AuthPlugin, plugins_installed
-from flaschengeist.models.user import User, Role, Permission
+from flaschengeist.plugins import AuthPlugin
+from flaschengeist.models import User, Role, Permission
 from flaschengeist.database import db
 from flaschengeist import logger
 
 
 class AuthPlain(AuthPlugin):
-    def install(self):
-        plugins_installed(self.post_install)
+    def can_register(self):
+        return True
 
-    def post_install(self, **kwargs):
-        if User.query.filter(User.deleted == False).count() == 0:
-            logger.info("Installing admin user")
-            role = Role.query.filter(Role.name == "Superuser").first()
-            if role is None:
-                role = Role(name="Superuser", permissions=Permission.query.all())
-            admin = User(
-                userid="admin",
-                firstname="Admin",
-                lastname="Admin",
-                mail="",
-                roles_=[role],
-            )
-            self.modify_user(admin, None, "admin")
-            db.session.add(admin)
-            db.session.commit()
-            logger.warning(
-                "New administrator user was added, please change the password or remove it before going into"
-                "production mode. Initial credentials:\n"
-                "name: admin\n"
-                "password: admin"
-            )
-
-    def login(self, user: User, password: str):
-        if user.has_attribute("password"):
-            return AuthPlain._verify_password(user.get_attribute("password"), password)
+    def login(self, login_name, password):
+        users: list[User] = (
+            User.query.filter((User.userid == login_name) | (User.mail == login_name))
+            .filter(User._attributes.any(name="password"))
+            .all()
+        )
+        for user in users:
+            if AuthPlain._verify_password(user.get_attribute("password"), password):
+                return user.userid
         return False
 
     def modify_user(self, user, password, new_password=None):
@@ -51,6 +34,12 @@ class AuthPlain(AuthPlugin):
         if new_password:
             user.set_attribute("password", AuthPlain._hash_password(new_password))
 
+    def user_exists(self, userid) -> bool:
+        return (
+            db.session.query(User.id_).filter(User.userid == userid, User._attributes.any(name="password")).first()
+            is not None
+        )
+
     def create_user(self, user, password):
         if not user.userid:
             raise BadRequest("userid is missing for new user")
@@ -68,7 +57,7 @@ class AuthPlain(AuthPlugin):
         return (salt + pass_hash).decode("ascii")
 
     @staticmethod
-    def _verify_password(stored_password, provided_password):
+    def _verify_password(stored_password: str, provided_password: str):
         salt = stored_password[:64]
         stored_password = stored_password[64:]
         pass_hash = hashlib.pbkdf2_hmac("sha3-512", provided_password.encode("utf-8"), salt.encode("ascii"), 100000)

flaschengeist/plugins/balance/__init__.py

@@ -3,11 +3,11 @@
 Extends users plugin with balance functions
 """
 
-from flask import Blueprint, current_app
-from werkzeug.local import LocalProxy
+from flask import current_app
 from werkzeug.exceptions import NotFound
 
 from flaschengeist import logger
+from flaschengeist.config import config
 from flaschengeist.plugins import Plugin, plugins_loaded, before_update_user
 from flaschengeist.plugins.scheduler import add_scheduled
 
@@ -56,14 +56,13 @@ def service_debit():
 
 
 class BalancePlugin(Plugin):
-    permissions = permissions.permissions
-    plugin: "BalancePlugin" = LocalProxy(lambda: current_app.config["FG_PLUGINS"][BalancePlugin.name])
     models = models
 
-    def __init__(self, entry_point, config):
-        super(BalancePlugin, self).__init__(entry_point, config)
-        from .routes import blueprint
+    def install(self):
+        self.install_permissions(permissions.permissions)
 
+    def load(self):
+        from .routes import blueprint
         self.blueprint = blueprint
 
         @plugins_loaded

flaschengeist/plugins/balance/migrations/98f2733bbe45_balance_initial.py

@@ -0,0 +1,47 @@
+"""balance: initial
+
+Revision ID: 98f2733bbe45
+Revises: 
+Create Date: 2022-02-23 14:41:03.089145
+
+"""
+from alembic import op
+import sqlalchemy as sa
+import flaschengeist
+
+
+# revision identifiers, used by Alembic.
+revision = "98f2733bbe45"
+down_revision = None
+branch_labels = ("balance",)
+depends_on = "flaschengeist"
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table(
+        "balance_transaction",
+        sa.Column("receiver_id", flaschengeist.models.Serial(), nullable=True),
+        sa.Column("sender_id", flaschengeist.models.Serial(), nullable=True),
+        sa.Column("author_id", flaschengeist.models.Serial(), nullable=False),
+        sa.Column("id", flaschengeist.models.Serial(), nullable=False),
+        sa.Column("time", flaschengeist.models.UtcDateTime(), nullable=False),
+        sa.Column("amount", sa.Numeric(precision=5, scale=2, asdecimal=False), nullable=False),
+        sa.Column("reversal_id", flaschengeist.models.Serial(), nullable=True),
+        sa.ForeignKeyConstraint(["author_id"], ["user.id"], name=op.f("fk_balance_transaction_author_id_user")),
+        sa.ForeignKeyConstraint(["receiver_id"], ["user.id"], name=op.f("fk_balance_transaction_receiver_id_user")),
+        sa.ForeignKeyConstraint(
+            ["reversal_id"],
+            ["balance_transaction.id"],
+            name=op.f("fk_balance_transaction_reversal_id_balance_transaction"),
+        ),
+        sa.ForeignKeyConstraint(["sender_id"], ["user.id"], name=op.f("fk_balance_transaction_sender_id_user")),
+        sa.PrimaryKeyConstraint("id", name=op.f("pk_balance_transaction")),
+    )
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_table("balance_transaction")
+    # ### end Alembic commands ###

flaschengeist/plugins/balance/models.py

@@ -1,5 +1,3 @@
-from __future__ import annotations  # TODO: Remove if python requirement is >= 3.10
-
 from datetime import datetime
 from typing import Optional
 from sqlalchemy.ext.hybrid import hybrid_property

flaschengeist/plugins/balance/routes.py

@@ -134,7 +134,7 @@ def get_balance(userid, current_session: Session):
 
     Route: ``/users/<userid>/balance`` | Method: ``GET``
 
-    GET-parameters: ```{from?: string, to?: string}```
+    GET-parameters: ``{from?: string, to?: string}``
 
     Args:
         userid: Userid of user to get balance from
@@ -173,7 +173,7 @@ def get_transactions(userid, current_session: Session):
 
     Route: ``/users/<userid>/balance/transactions`` | Method: ``GET``
 
-    GET-parameters: ```{from?: string, to?: string, limit?: int, offset?: int}```
+    GET-parameters: ``{from?: string, to?: string, limit?: int, offset?: int}``
 
     Args:
         userid: Userid of user to get transactions from

flaschengeist/plugins/message_mail.py

@@ -3,17 +3,16 @@ from email.mime.text import MIMEText
 from email.mime.multipart import MIMEMultipart
 
 from flaschengeist import logger
-from flaschengeist.models.user import User
+from flaschengeist.models import User
+from flaschengeist.plugins import Plugin
 from flaschengeist.utils.hook import HookAfter
 from flaschengeist.controller import userController
 from flaschengeist.controller.messageController import Message
 
-from . import Plugin
-
 
 class MailMessagePlugin(Plugin):
     def __init__(self, entry_point, config):
-        super().__init__(entry_point)
+        super().__init__(entry_point, config)
         self.server = config["SERVER"]
         self.port = config["PORT"]
         self.user = config["USER"]

flaschengeist/plugins/pricelist/__init__.py

@@ -1,37 +1,32 @@
 """Pricelist plugin"""
-
-from flask import Blueprint, jsonify, request, current_app
-from werkzeug.local import LocalProxy
+from flask import Blueprint, jsonify, request
 from werkzeug.exceptions import BadRequest, Forbidden, NotFound, Unauthorized
 
 from flaschengeist import logger
 from flaschengeist.controller import userController
 from flaschengeist.controller.imageController import send_image, send_thumbnail
 from flaschengeist.plugins import Plugin
-from flaschengeist.utils.decorators import login_required, extract_session, headers
+from flaschengeist.utils.decorators import login_required, extract_session
 from flaschengeist.utils.HTTP import no_content
 
 from . import models
 from . import pricelist_controller, permissions
 
 
-blueprint = Blueprint("pricelist", __name__, url_prefix="/pricelist")
-
-
 class PriceListPlugin(Plugin):
-    permissions = permissions.permissions
-    plugin = LocalProxy(lambda: current_app.config["FG_PLUGINS"][PriceListPlugin.name])
     models = models
+    blueprint = Blueprint("pricelist", __name__, url_prefix="/pricelist")
 
-    def __init__(self, entry_point, config=None):
-        super().__init__(entry_point, config)
-        self.blueprint = blueprint
+    def install(self):
+        self.install_permissions(permissions.permissions)
+
+    def load(self):
         config = {"discount": 0}
         config.update(config)
 
 
-@blueprint.route("/drink-types", methods=["GET"])
-@blueprint.route("/drink-types/<int:identifier>", methods=["GET"])
+@PriceListPlugin.blueprint.route("/drink-types", methods=["GET"])
+@PriceListPlugin.blueprint.route("/drink-types/<int:identifier>", methods=["GET"])
 def get_drink_types(identifier=None):
     """Get DrinkType(s)
 
@@ -51,7 +46,7 @@ def get_drink_types(identifier=None):
     return jsonify(result)
 
 
-@blueprint.route("/drink-types", methods=["POST"])
+@PriceListPlugin.blueprint.route("/drink-types", methods=["POST"])
 @login_required(permission=permissions.CREATE_TYPE)
 def new_drink_type(current_session):
     """Create new DrinkType
@@ -73,7 +68,7 @@ def new_drink_type(current_session):
     return jsonify(drink_type)
 
 
-@blueprint.route("/drink-types/<int:identifier>", methods=["PUT"])
+@PriceListPlugin.blueprint.route("/drink-types/<int:identifier>", methods=["PUT"])
 @login_required(permission=permissions.EDIT_TYPE)
 def update_drink_type(identifier, current_session):
     """Modify DrinkType
@@ -96,7 +91,7 @@ def update_drink_type(identifier, current_session):
     return jsonify(drink_type)
 
 
-@blueprint.route("/drink-types/<int:identifier>", methods=["DELETE"])
+@PriceListPlugin.blueprint.route("/drink-types/<int:identifier>", methods=["DELETE"])
 @login_required(permission=permissions.DELETE_TYPE)
 def delete_drink_type(identifier, current_session):
     """Delete DrinkType
@@ -114,8 +109,8 @@ def delete_drink_type(identifier, current_session):
     return no_content()
 
 
-@blueprint.route("/tags", methods=["GET"])
-@blueprint.route("/tags/<int:identifier>", methods=["GET"])
+@PriceListPlugin.blueprint.route("/tags", methods=["GET"])
+@PriceListPlugin.blueprint.route("/tags/<int:identifier>", methods=["GET"])
 def get_tags(identifier=None):
     """Get Tag(s)
 
@@ -135,7 +130,7 @@ def get_tags(identifier=None):
     return jsonify(result)
 
 
-@blueprint.route("/tags", methods=["POST"])
+@PriceListPlugin.blueprint.route("/tags", methods=["POST"])
 @login_required(permission=permissions.CREATE_TAG)
 def new_tag(current_session):
     """Create Tag
@@ -155,7 +150,7 @@ def new_tag(current_session):
     return jsonify(drink_type)
 
 
-@blueprint.route("/tags/<int:identifier>", methods=["PUT"])
+@PriceListPlugin.blueprint.route("/tags/<int:identifier>", methods=["PUT"])
 @login_required(permission=permissions.EDIT_TAG)
 def update_tag(identifier, current_session):
     """Modify Tag
@@ -176,7 +171,7 @@ def update_tag(identifier, current_session):
     return jsonify(tag)
 
 
-@blueprint.route("/tags/<int:identifier>", methods=["DELETE"])
+@PriceListPlugin.blueprint.route("/tags/<int:identifier>", methods=["DELETE"])
 @login_required(permission=permissions.DELETE_TAG)
 def delete_tag(identifier, current_session):
     """Delete Tag
@@ -194,8 +189,8 @@ def delete_tag(identifier, current_session):
     return no_content()
 
 
-@blueprint.route("/drinks", methods=["GET"])
-@blueprint.route("/drinks/<int:identifier>", methods=["GET"])
+@PriceListPlugin.blueprint.route("/drinks", methods=["GET"])
+@PriceListPlugin.blueprint.route("/drinks/<int:identifier>", methods=["GET"])
 def get_drinks(identifier=None):
     """Get Drink(s)
 
@@ -251,7 +246,7 @@ def get_drinks(identifier=None):
     return jsonify({"drinks": drinks, "count": count})
 
 
-@blueprint.route("/list", methods=["GET"])
+@PriceListPlugin.blueprint.route("/list", methods=["GET"])
 def get_pricelist():
     """Get Priclist
     Route: ``/pricelist/list`` | Method: ``GET``
@@ -300,7 +295,7 @@ def get_pricelist():
     return jsonify({"pricelist": pricelist, "count": count})
 
 
-@blueprint.route("/drinks/search/<string:name>", methods=["GET"])
+@PriceListPlugin.blueprint.route("/drinks/search/<string:name>", methods=["GET"])
 def search_drinks(name):
     """Search Drink
 
@@ -321,7 +316,7 @@ def search_drinks(name):
     return jsonify(pricelist_controller.get_drinks(name, public=public))
 
 
-@blueprint.route("/drinks", methods=["POST"])
+@PriceListPlugin.blueprint.route("/drinks", methods=["POST"])
 @login_required(permission=permissions.CREATE)
 def create_drink(current_session):
     """Create Drink
@@ -373,7 +368,7 @@ def create_drink(current_session):
     return jsonify(pricelist_controller.set_drink(data))
 
 
-@blueprint.route("/drinks/<int:identifier>", methods=["PUT"])
+@PriceListPlugin.blueprint.route("/drinks/<int:identifier>", methods=["PUT"])
 @login_required(permission=permissions.EDIT)
 def update_drink(identifier, current_session):
     """Modify Drink
@@ -427,7 +422,7 @@ def update_drink(identifier, current_session):
     return jsonify(pricelist_controller.update_drink(identifier, data))
 
 
-@blueprint.route("/drinks/<int:identifier>", methods=["DELETE"])
+@PriceListPlugin.blueprint.route("/drinks/<int:identifier>", methods=["DELETE"])
 @login_required(permission=permissions.DELETE)
 def delete_drink(identifier, current_session):
     """Delete Drink
@@ -445,7 +440,7 @@ def delete_drink(identifier, current_session):
     return no_content()
 
 
-@blueprint.route("/prices/<int:identifier>", methods=["DELETE"])
+@PriceListPlugin.blueprint.route("/prices/<int:identifier>", methods=["DELETE"])
 @login_required(permission=permissions.DELETE_PRICE)
 def delete_price(identifier, current_session):
     """Delete Price
@@ -463,7 +458,7 @@ def delete_price(identifier, current_session):
     return no_content()
 
 
-@blueprint.route("/volumes/<int:identifier>", methods=["DELETE"])
+@PriceListPlugin.blueprint.route("/volumes/<int:identifier>", methods=["DELETE"])
 @login_required(permission=permissions.DELETE_VOLUME)
 def delete_volume(identifier, current_session):
     """Delete DrinkPriceVolume
@@ -481,7 +476,7 @@ def delete_volume(identifier, current_session):
     return no_content()
 
 
-@blueprint.route("/ingredients/extraIngredients", methods=["GET"])
+@PriceListPlugin.blueprint.route("/ingredients/extraIngredients", methods=["GET"])
 @login_required()
 def get_extra_ingredients(current_session):
     """Get ExtraIngredients
@@ -497,7 +492,7 @@ def get_extra_ingredients(current_session):
     return jsonify(pricelist_controller.get_extra_ingredients())
 
 
-@blueprint.route("/ingredients/<int:identifier>", methods=["DELETE"])
+@PriceListPlugin.blueprint.route("/ingredients/<int:identifier>", methods=["DELETE"])
 @login_required(permission=permissions.DELETE_INGREDIENTS_DRINK)
 def delete_ingredient(identifier, current_session):
     """Delete Ingredient
@@ -515,7 +510,7 @@ def delete_ingredient(identifier, current_session):
     return no_content()
 
 
-@blueprint.route("/ingredients/extraIngredients", methods=["POST"])
+@PriceListPlugin.blueprint.route("/ingredients/extraIngredients", methods=["POST"])
 @login_required(permission=permissions.EDIT_INGREDIENTS)
 def set_extra_ingredient(current_session):
     """Create ExtraIngredient
@@ -534,7 +529,7 @@ def set_extra_ingredient(current_session):
     return jsonify(pricelist_controller.set_extra_ingredient(data))
 
 
-@blueprint.route("/ingredients/extraIngredients/<int:identifier>", methods=["PUT"])
+@PriceListPlugin.blueprint.route("/ingredients/extraIngredients/<int:identifier>", methods=["PUT"])
 @login_required(permission=permissions.EDIT_INGREDIENTS)
 def update_extra_ingredient(identifier, current_session):
     """Modify ExtraIngredient
@@ -554,7 +549,7 @@ def update_extra_ingredient(identifier, current_session):
     return jsonify(pricelist_controller.update_extra_ingredient(identifier, data))
 
 
-@blueprint.route("/ingredients/extraIngredients/<int:identifier>", methods=["DELETE"])
+@PriceListPlugin.blueprint.route("/ingredients/extraIngredients/<int:identifier>", methods=["DELETE"])
 @login_required(permission=permissions.DELETE_INGREDIENTS)
 def delete_extra_ingredient(identifier, current_session):
     """Delete ExtraIngredient
@@ -572,7 +567,7 @@ def delete_extra_ingredient(identifier, current_session):
     return no_content()
 
 
-@blueprint.route("/settings/min_prices", methods=["GET"])
+@PriceListPlugin.blueprint.route("/settings/min_prices", methods=["GET"])
 @login_required()
 def get_pricelist_settings_min_prices(current_session):
     """Get MinPrices
@@ -593,7 +588,7 @@ def get_pricelist_settings_min_prices(current_session):
     return jsonify(min_prices)
 
 
-@blueprint.route("/settings/min_prices", methods=["POST"])
+@PriceListPlugin.blueprint.route("/settings/min_prices", methods=["POST"])
 @login_required(permission=permissions.EDIT_MIN_PRICES)
 def post_pricelist_settings_min_prices(current_session):
     """Create MinPrices
@@ -616,7 +611,7 @@ def post_pricelist_settings_min_prices(current_session):
     return no_content()
 
 
-@blueprint.route("/users/<userid>/pricecalc_columns", methods=["GET", "PUT"])
+@PriceListPlugin.blueprint.route("/users/<userid>/pricecalc_columns", methods=["GET", "PUT"])
 @login_required()
 def get_columns(userid, current_session):
     """Get pricecalc_columns of an user
@@ -648,7 +643,7 @@ def get_columns(userid, current_session):
         return no_content()
 
 
-@blueprint.route("/users/<userid>/pricecalc_columns_order", methods=["GET", "PUT"])
+@PriceListPlugin.blueprint.route("/users/<userid>/pricecalc_columns_order", methods=["GET", "PUT"])
 @login_required()
 def get_columns_order(userid, current_session):
     """Get pricecalc_columns_order of an user
@@ -679,7 +674,7 @@ def get_columns_order(userid, current_session):
         return no_content()
 
 
-@blueprint.route("/users/<userid>/pricelist", methods=["GET", "PUT"])
+@PriceListPlugin.blueprint.route("/users/<userid>/pricelist", methods=["GET", "PUT"])
 @login_required()
 def get_priclist_setting(userid, current_session):
     """Get pricelistsetting of an user
@@ -712,7 +707,7 @@ def get_priclist_setting(userid, current_session):
         return no_content()
 
 
-@blueprint.route("/drinks/<int:identifier>/picture", methods=["POST", "DELETE"])
+@PriceListPlugin.blueprint.route("/drinks/<int:identifier>/picture", methods=["POST", "DELETE"])
 @login_required(permission=permissions.EDIT)
 def set_picture(identifier, current_session):
     """Get, Create, Delete Drink Picture
@@ -739,7 +734,7 @@ def set_picture(identifier, current_session):
         raise BadRequest
 
 
-@blueprint.route("/drinks/<int:identifier>/picture", methods=["GET"])
+@PriceListPlugin.blueprint.route("/drinks/<int:identifier>/picture", methods=["GET"])
 # @headers({"Cache-Control": "private, must-revalidate"})
 def _get_picture(identifier):
     """Get Picture

flaschengeist/plugins/pricelist/migrations/58ab9b6a8839_pricelist_initial.py

@@ -0,0 +1,141 @@
+"""pricelist: initial
+
+Revision ID: 58ab9b6a8839
+Revises: 
+Create Date: 2022-02-23 14:45:30.563647
+
+"""
+from alembic import op
+import sqlalchemy as sa
+import flaschengeist
+
+
+# revision identifiers, used by Alembic.
+revision = "58ab9b6a8839"
+down_revision = None
+branch_labels = ("pricelist",)
+depends_on = "flaschengeist"
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table(
+        "drink_extra_ingredient",
+        sa.Column("id", flaschengeist.models.Serial(), nullable=False),
+        sa.Column("name", sa.String(length=30), nullable=False),
+        sa.Column("price", sa.Numeric(precision=5, scale=2, asdecimal=False), nullable=True),
+        sa.PrimaryKeyConstraint("id", name=op.f("pk_drink_extra_ingredient")),
+        sa.UniqueConstraint("name", name=op.f("uq_drink_extra_ingredient_name")),
+    )
+    op.create_table(
+        "drink_tag",
+        sa.Column("id", flaschengeist.models.Serial(), nullable=False),
+        sa.Column("name", sa.String(length=30), nullable=False),
+        sa.Column("color", sa.String(length=7), nullable=False),
+        sa.PrimaryKeyConstraint("id", name=op.f("pk_drink_tag")),
+        sa.UniqueConstraint("name", name=op.f("uq_drink_tag_name")),
+    )
+    op.create_table(
+        "drink_type",
+        sa.Column("id", flaschengeist.models.Serial(), nullable=False),
+        sa.Column("name", sa.String(length=30), nullable=False),
+        sa.PrimaryKeyConstraint("id", name=op.f("pk_drink_type")),
+        sa.UniqueConstraint("name", name=op.f("uq_drink_type_name")),
+    )
+    op.create_table(
+        "drink",
+        sa.Column("id", flaschengeist.models.Serial(), nullable=False),
+        sa.Column("article_id", sa.String(length=64), nullable=True),
+        sa.Column("package_size", sa.Integer(), nullable=True),
+        sa.Column("name", sa.String(length=60), nullable=False),
+        sa.Column("volume", sa.Numeric(precision=5, scale=2, asdecimal=False), nullable=True),
+        sa.Column("cost_per_volume", sa.Numeric(precision=5, scale=3, asdecimal=False), nullable=True),
+        sa.Column("cost_per_package", sa.Numeric(precision=5, scale=3, asdecimal=False), nullable=True),
+        sa.Column("receipt", sa.PickleType(), nullable=True),
+        sa.Column("type_id", flaschengeist.models.Serial(), nullable=True),
+        sa.Column("image_id", flaschengeist.models.Serial(), nullable=True),
+        sa.ForeignKeyConstraint(["image_id"], ["image.id"], name=op.f("fk_drink_image_id_image")),
+        sa.ForeignKeyConstraint(["type_id"], ["drink_type.id"], name=op.f("fk_drink_type_id_drink_type")),
+        sa.PrimaryKeyConstraint("id", name=op.f("pk_drink")),
+    )
+    op.create_table(
+        "drink_ingredient",
+        sa.Column("id", flaschengeist.models.Serial(), nullable=False),
+        sa.Column("volume", sa.Numeric(precision=5, scale=2, asdecimal=False), nullable=False),
+        sa.Column("ingredient_id", flaschengeist.models.Serial(), nullable=True),
+        sa.ForeignKeyConstraint(["ingredient_id"], ["drink.id"], name=op.f("fk_drink_ingredient_ingredient_id_drink")),
+        sa.PrimaryKeyConstraint("id", name=op.f("pk_drink_ingredient")),
+    )
+    op.create_table(
+        "drink_price_volume",
+        sa.Column("id", flaschengeist.models.Serial(), nullable=False),
+        sa.Column("drink_id", flaschengeist.models.Serial(), nullable=True),
+        sa.Column("volume", sa.Numeric(precision=5, scale=2, asdecimal=False), nullable=True),
+        sa.ForeignKeyConstraint(["drink_id"], ["drink.id"], name=op.f("fk_drink_price_volume_drink_id_drink")),
+        sa.PrimaryKeyConstraint("id", name=op.f("pk_drink_price_volume")),
+    )
+    op.create_table(
+        "drink_x_tag",
+        sa.Column("drink_id", flaschengeist.models.Serial(), nullable=True),
+        sa.Column("tag_id", flaschengeist.models.Serial(), nullable=True),
+        sa.ForeignKeyConstraint(["drink_id"], ["drink.id"], name=op.f("fk_drink_x_tag_drink_id_drink")),
+        sa.ForeignKeyConstraint(["tag_id"], ["drink_tag.id"], name=op.f("fk_drink_x_tag_tag_id_drink_tag")),
+    )
+    op.create_table(
+        "drink_x_type",
+        sa.Column("drink_id", flaschengeist.models.Serial(), nullable=True),
+        sa.Column("type_id", flaschengeist.models.Serial(), nullable=True),
+        sa.ForeignKeyConstraint(["drink_id"], ["drink.id"], name=op.f("fk_drink_x_type_drink_id_drink")),
+        sa.ForeignKeyConstraint(["type_id"], ["drink_type.id"], name=op.f("fk_drink_x_type_type_id_drink_type")),
+    )
+    op.create_table(
+        "drink_ingredient_association",
+        sa.Column("id", flaschengeist.models.Serial(), nullable=False),
+        sa.Column("volume_id", flaschengeist.models.Serial(), nullable=True),
+        sa.Column("_drink_ingredient_id", flaschengeist.models.Serial(), nullable=True),
+        sa.Column("_extra_ingredient_id", flaschengeist.models.Serial(), nullable=True),
+        sa.ForeignKeyConstraint(
+            ["_drink_ingredient_id"],
+            ["drink_ingredient.id"],
+            name=op.f("fk_drink_ingredient_association__drink_ingredient_id_drink_ingredient"),
+        ),
+        sa.ForeignKeyConstraint(
+            ["_extra_ingredient_id"],
+            ["drink_extra_ingredient.id"],
+            name=op.f("fk_drink_ingredient_association__extra_ingredient_id_drink_extra_ingredient"),
+        ),
+        sa.ForeignKeyConstraint(
+            ["volume_id"],
+            ["drink_price_volume.id"],
+            name=op.f("fk_drink_ingredient_association_volume_id_drink_price_volume"),
+        ),
+        sa.PrimaryKeyConstraint("id", name=op.f("pk_drink_ingredient_association")),
+    )
+    op.create_table(
+        "drink_price",
+        sa.Column("id", flaschengeist.models.Serial(), nullable=False),
+        sa.Column("price", sa.Numeric(precision=5, scale=2, asdecimal=False), nullable=True),
+        sa.Column("volume_id", flaschengeist.models.Serial(), nullable=True),
+        sa.Column("public", sa.Boolean(), nullable=True),
+        sa.Column("description", sa.String(length=30), nullable=True),
+        sa.ForeignKeyConstraint(
+            ["volume_id"], ["drink_price_volume.id"], name=op.f("fk_drink_price_volume_id_drink_price_volume")
+        ),
+        sa.PrimaryKeyConstraint("id", name=op.f("pk_drink_price")),
+    )
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_table("drink_price")
+    op.drop_table("drink_ingredient_association")
+    op.drop_table("drink_x_type")
+    op.drop_table("drink_x_tag")
+    op.drop_table("drink_price_volume")
+    op.drop_table("drink_ingredient")
+    op.drop_table("drink")
+    op.drop_table("drink_type")
+    op.drop_table("drink_tag")
+    op.drop_table("drink_extra_ingredient")
+    # ### end Alembic commands ###

flaschengeist/plugins/pricelist/models.py

@@ -1,11 +1,12 @@
-from __future__ import annotations  # TODO: Remove if python requirement is >= 3.10
-
-from flaschengeist.database import db
-from flaschengeist.models import ModelSerializeMixin, Serial
-from flaschengeist.models.image import Image
+from __future__ import annotations  # TODO: Remove if python requirement is >= 3.12 (? PEP 563 is defered)
 
 from typing import Optional
 
+from flaschengeist.database import db
+from flaschengeist.database.types import ModelSerializeMixin, Serial
+from flaschengeist.models import Image
+
+
 drink_tag_association = db.Table(
     "drink_x_tag",
     db.Column("drink_id", Serial, db.ForeignKey("drink.id")),

flaschengeist/plugins/roles/__init__.py

@@ -5,19 +5,20 @@ Provides routes used to configure roles and permissions of users / roles.
 
 from werkzeug.exceptions import BadRequest
 from flask import Blueprint, request, jsonify
-from http.client import NO_CONTENT
 
 from flaschengeist.plugins import Plugin
-from flaschengeist.utils.decorators import login_required
 from flaschengeist.controller import roleController
 from flaschengeist.utils.HTTP import created, no_content
+from flaschengeist.utils.decorators import login_required
 
 from . import permissions
 
 
 class RolesPlugin(Plugin):
     blueprint = Blueprint("roles", __name__)
-    permissions = permissions.permissions
+
+    def install(self):
+        self.install_permissions(permissions.permissions)
 
 
 @RolesPlugin.blueprint.route("/roles", methods=["GET"])

flaschengeist/plugins/scheduler.py

@@ -2,10 +2,10 @@ from flask import Blueprint
 from datetime import datetime, timedelta
 
 from flaschengeist import logger
+from flaschengeist.config import config
+from flaschengeist.plugins import Plugin
 from flaschengeist.utils.HTTP import no_content
 
-from . import Plugin
-
 
 class __Task:
     def __init__(self, function, **kwags):
@@ -39,10 +39,9 @@ def scheduled(id: str, replace=False, **kwargs):
 
 
 class SchedulerPlugin(Plugin):
-    def __init__(self, entry_point, config=None):
-        super().__init__(entry_point, config)
-        self.blueprint = Blueprint(self.name, __name__)
+    blueprint = Blueprint("scheduler", __name__)
 
+    def load(self):
         def __view_func():
             self.run_tasks()
             return no_content()
@@ -53,14 +52,17 @@ class SchedulerPlugin(Plugin):
             except:
                 logger.error("Error while executing scheduled tasks!", exc_info=True)
 
-        cron = None if config is None else config.get("cron", "passive_web").lower()
+        cron = config.get("scheduler", {}).get("cron", "passive_web").lower()
 
-        if cron is None or cron == "passive_web":
+        if cron == "passive_web":
             self.blueprint.teardown_app_request(__passiv_func)
         elif cron == "active_web":
             self.blueprint.add_url_rule("/cron", view_func=__view_func)
 
     def run_tasks(self):
+        from ..database import db
+        self = db.session.merge(self)
+
         changed = False
         now = datetime.now()
         status = self.get_setting("status", default=dict())

flaschengeist/plugins/users/__init__.py

@@ -2,15 +2,15 @@
 
 Provides routes used to manage users
 """
-from http.client import NO_CONTENT, CREATED
+from http.client import CREATED
 from flask import Blueprint, request, jsonify, make_response
-from werkzeug.exceptions import BadRequest, Forbidden, MethodNotAllowed, NotFound
+from werkzeug.exceptions import BadRequest, Forbidden, MethodNotAllowed
 
 from . import permissions
 from flaschengeist import logger
 from flaschengeist.config import config
 from flaschengeist.plugins import Plugin
-from flaschengeist.models.user import User
+from flaschengeist.models import User
 from flaschengeist.utils.decorators import login_required, extract_session, headers
 from flaschengeist.controller import userController
 from flaschengeist.utils.HTTP import created, no_content
@@ -19,7 +19,9 @@ from flaschengeist.utils.datetime import from_iso_format
 
 class UsersPlugin(Plugin):
     blueprint = Blueprint("users", __name__)
-    permissions = permissions.permissions
+
+    def install(self):
+        self.install_permissions(permissions.permissions)
 
 
 @UsersPlugin.blueprint.route("/users", methods=["POST"])
@@ -104,7 +106,7 @@ def frontend(userid, current_session):
         raise Forbidden
 
     if request.method == "POST":
-        if request.content_length > 1024**2:
+        if request.content_length > 1024 ** 2:
             raise BadRequest
         current_session.user_.set_attribute("frontend", request.get_json())
         return no_content()

flaschengeist/plugins/users/cli.py

@@ -1,6 +1,9 @@
 import click
+import sqlalchemy.exc
 from flask.cli import with_appcontext
-from werkzeug.exceptions import BadRequest, Conflict, NotFound
+from werkzeug.exceptions import NotFound
+
+from flaschengeist.database import db
 from flaschengeist.controller import roleController, userController
 
 
@@ -28,23 +31,53 @@ def user(ctx, param, value):
 
 
 @click.command()
-@click.option("--add-role", help="Add new role", type=str)
-@click.option("--set-admin", help="Make a role an admin role, adding all permissions", type=str)
-@click.option("--add-user", help="Add new user interactivly", callback=user, is_flag=True, expose_value=False)
+@click.option("--create", help="Add new role", is_flag=True)
+@click.option("--delete", help="Delete role", is_flag=True)
+@click.option("--set-admin", is_flag=True, help="Make a role an admin role, adding all permissions", type=str)
+@click.argument("role", nargs=-1, required=True, type=str)
+def role(create, delete, set_admin, role):
+    """Manage roles"""
+    ctx = click.get_current_context()
+
+    if (create and delete) or (set_admin and delete):
+        ctx.fail("Do not mix --delete with --create or --set-admin")
+
+    for role_name in role:
+        if create:
+            r = roleController.create_role(role_name)
+        else:
+            r = roleController.get(role_name)
+        if delete:
+            roleController.delete(r)
+        if set_admin:
+            r.permissions = roleController.get_permissions()
+            db.session.commit()
+
+
+@click.command()
+@click.option("--add-role", help="Add a role to an user", type=str)
+@click.option("--create", help="Create new user interactivly", callback=user, is_flag=True, expose_value=False)
+@click.option("--delete", help="Delete a user", is_flag=True)
+@click.argument("user", nargs=-1, type=str)
 @with_appcontext
-def users(add_role, set_admin):
+def user(add_role, delete, user):
+    """Manage users"""
     from flaschengeist.database import db
 
     ctx = click.get_current_context()
 
     try:
-        if add_role:
-            roleController.create_role(add_role)
-        if set_admin:
-            role = roleController.get(set_admin)
-            role.permissions = roleController.get_permissions()
-            db.session.commit()
         if USER_KEY in ctx.meta:
             userController.register(ctx.meta[USER_KEY], ctx.meta[USER_KEY]["password"])
-    except (BadRequest, NotFound) as e:
-        ctx.fail(e.description)
+        else:
+            for uid in user:
+                user = userController.get_user(uid)
+                if delete:
+                    userController.delete_user(user)
+                elif add_role:
+                    role = roleController.get(add_role)
+                    user.roles_.append(role)
+                    userController.modify_user(user, None)
+                    db.session.commit()
+    except NotFound:
+        ctx.fail(f"User not found {uid}")

flaschengeist/utils/decorators.py

@@ -14,7 +14,7 @@ def extract_session(permission=None):
         logger.debug("Missing Authorization header or ill-formed")
         raise Unauthorized
 
-    session = sessionController.validate_token(token, request.user_agent, permission)
+    session = sessionController.validate_token(token, request.headers, permission)
     return session
 
 

flaschengeist/utils/foreign_keys.py

@@ -1,51 +0,0 @@
-# Borrowed from https://github.com/kvesteri/sqlalchemy-utils
-# Modifications see: https://github.com/kvesteri/sqlalchemy-utils/issues/561
-# LICENSED under the BSD license, see upstream https://github.com/kvesteri/sqlalchemy-utils/blob/master/LICENSE
-
-import sqlalchemy as sa
-from sqlalchemy.orm import object_session
-
-
-def get_foreign_key_values(fk, obj):
-    mapper = sa.inspect(obj.__class__)
-    return dict(
-        (
-            fk.constraint.columns.values()[index],
-            getattr(obj, element.column.key)
-            if hasattr(obj, element.column.key)
-            else getattr(obj, mapper.get_property_by_column(element.column).key),
-        )
-        for index, element in enumerate(fk.constraint.elements)
-    )
-
-
-def get_referencing_foreign_keys(mixed):
-    tables = [mixed]
-    referencing_foreign_keys = set()
-
-    for table in mixed.metadata.tables.values():
-        if table not in tables:
-            for constraint in table.constraints:
-                if isinstance(constraint, sa.sql.schema.ForeignKeyConstraint):
-                    for fk in constraint.elements:
-                        if any(fk.references(t) for t in tables):
-                            referencing_foreign_keys.add(fk)
-    return referencing_foreign_keys
-
-
-def merge_references(from_, to, foreign_keys=None):
-    """
-    Merge the references of an entity into another entity.
-    """
-    if from_.__tablename__ != to.__tablename__:
-        raise TypeError("The tables of given arguments do not match.")
-
-    session = object_session(from_)
-    foreign_keys = get_referencing_foreign_keys(from_.__table__)
-
-    for fk in foreign_keys:
-        old_values = get_foreign_key_values(fk, from_)
-        new_values = get_foreign_key_values(fk, to)
-        session.query(from_.__mapper__).filter(*[k == old_values[k] for k in old_values]).update(
-            new_values, synchronize_session=False
-        )

flaschengeist/utils/hook.py

@@ -7,6 +7,7 @@ _hooks_after = {}
 
 def Hook(function=None, id=None):
     """Hook decorator
+
     Use to decorate functions as hooks, so plugins can hook up their custom functions.
     """
     # `id` passed as `arg` not `kwarg`
@@ -38,8 +39,10 @@ def Hook(function=None, id=None):
 
 def HookBefore(id: str):
     """Decorator for functions to be called before a Hook-Function is called
+
     The hooked up function must accept the same arguments as the function hooked onto,
     as the functions are called with the same arguments.
+
     Hint: This enables you to modify the arguments!
     """
     if not id or not isinstance(id, str):
@@ -54,9 +57,18 @@ def HookBefore(id: str):
 
 def HookAfter(id: str):
     """Decorator for functions to be called after a Hook-Function is called
+
     As with the HookBefore, the hooked up function must accept the same
     arguments as the function hooked onto, but also receives a
     `hook_result` kwarg containing the result of the function.
+
+    Example:
+        ```py
+        @HookAfter("some.id")
+        def my_func(hook_result):
+            # This function is executed after the function registered with "some.id"
+            print(hook_result)  # This is the result of the function
+        ```
     """
 
     if not id or not isinstance(id, str):

setup.cfg

@@ -19,19 +19,20 @@ classifiers =
 
 [options]
 include_package_data = True
-python_requires = >=3.9
+python_requires = >=3.10
 packages = find:
 install_requires =
-    Flask >= 2.0
-    Pillow>=8.4.0
+    Flask>=2.2.2
+    Pillow>=9.2
     flask_cors
-    flask_sqlalchemy>=2.5
+    flask_migrate>=3.1.0
+    flask_sqlalchemy>=2.5.1
+    sqlalchemy_utils>=0.38.3
     # Importlib requirement can be dropped when python requirement is >= 3.10
     importlib_metadata>=4.3
-    sqlalchemy>=1.4.26, <2.0
+    sqlalchemy>=1.4.40, <2.0
     toml
-    werkzeug
-    
+    werkzeug>=2.2.2
 
 [options.extras_require]
 argon = argon2-cffi
@@ -42,14 +43,15 @@ mysql =
     mysqlclient;platform_system!='Windows'
 
 [options.package_data]
-* = *.toml
+* = *.toml, script.py.mako
 
 [options.entry_points]
 console_scripts =
     flaschengeist = flaschengeist.cli:main
 flask.commands =
     ldap = flaschengeist.plugins.auth_ldap.cli:ldap
-    users = flaschengeist.plugins.users.cli:users
+    user = flaschengeist.plugins.users.cli:user
+    role = flaschengeist.plugins.users.cli:role
 flaschengeist.plugins =
     # Authentication providers
     auth_plain = flaschengeist.plugins.auth_plain:AuthPlain