fix(app): Skip plugins with not satisfied dependencies.

* Install / Uninstall plugins
* List plugins

flaschengeist/app.py

@@ -4,13 +4,14 @@ 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.utils.hook import Hook
-from flaschengeist.plugins import AuthPlugin
+from flaschengeist.plugins import AuthPlugin, Plugin
+from flaschengeist.utils.plugin import get_plugins
+from flaschengeist.controller import roleController
 from flaschengeist.config import config, configure_app
 
 
@@ -37,38 +38,29 @@ class CustomJSONEncoder(JSONEncoder):
 
 @Hook("plugins.loaded")
 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:
+    def load_plugin(cls: type[Plugin]):
+        logger.debug(f"Load plugin {cls.id}")
+        # Initialize plugin with config section
+        plugin = cls(config.get(plugin_class.id, config.get(plugin_class.id.split(".")[-1], {})))
+        # Register blueprint if provided
+        if 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
+        # Save plugin application context
+        app.config.setdefault("FG_PLUGINS", {})[plugin.id] = plugin
+        return plugin
+
+    for plugin_class in get_plugins():
+        names = [plugin_class.id, plugin_class.id.split(".")[-1]]
+        if config["FLASCHENGEIST"]["auth"] in names:
+            # Load authentification plugin
+            app.config["FG_AUTH_BACKEND"] = load_plugin(plugin_class)
+            logger.info(f"Using authentication plugin: {plugin_class.id}")
+        elif any([i in config and config[i].get("enabled", False) for i in names]):
+            # Load all other enabled plugins
+            load_plugin(plugin_class)
+            logger.info(f"Using plugin: {plugin_class.id}")
         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}")
+            logger.debug(f"Skip disabled plugin {plugin_class.id}")
     if "FG_AUTH_BACKEND" not in app.config:
         logger.fatal("No authentication plugin configured or authentication plugin not found")
         raise RuntimeError("No authentication plugin configured or authentication plugin not found")

flaschengeist/plugins/__init__.py

@@ -24,11 +24,7 @@ For more information, please refer to
 - `flaschengeist.utils.hook.HookAfter`
 """
 
-from importlib_metadata import Distribution, EntryPoint
 from werkzeug.exceptions import MethodNotAllowed, NotFound
-from werkzeug.datastructures import FileStorage
-
-from flaschengeist.models.user import _Avatar, User
 from flaschengeist.utils.hook import HookBefore, HookAfter
 
 __all__ = [
@@ -92,47 +88,54 @@ Passed args:
 class Plugin:
     """Base class for all Plugins
 
-    All plugins must derived from this class.
+    All plugins must be derived from this class.
+    There are some static properties a plugin must provide,
+    and some properties a plugin can provide if you might want
+    to use more functionality.
+
+    Required:
+        - *id*: Unique identifier of your plugin
 
     Optional:
         - *blueprint*: `flask.Blueprint` providing your routes
         - *permissions*: List of your custom permissions
         - *models*: Your models, used for API export
+        - *version*: Version of your plugin, can also be guessed by Flaschengeist
     """
 
-    name: str
-    """Name of the plugin, loaded from EntryPoint"""
+    id: str = None
+    """Override with the unique ID of the plugin
     
-    version: str
-    """Version of the plugin, loaded from Distribution"""
-
-    dist: Distribution
-    """Distribution of this plugin"""
+    Hint: Use a fully qualified name like "dev.flaschengeist.plugin"
+    """
 
     blueprint = None
-    """Optional `flask.blueprint` if the plugin uses custom routes"""
+    """Override with a `flask.blueprint` if the plugin uses custom routes"""
 
-    permissions: list[str] = []
-    """Optional list of custom permissions used by the plugin
+    permissions: list[str] = []  # You have to override
+    """Override to add 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"""
+    """Override with models module
     
-    migrations_path = None
-    """Optional location of the path to migration files, required if custome db tables are used"""
+    Used for API export, has to be a static property
+    """
 
-    def __init__(self, entry_point: EntryPoint, config=None):
+    version = None
+    """Override with a custom version, optional
+    
+    If not set, the version is guessed from the package / distribution
+    """
+
+    def __init__(self, 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
 
     def install(self):
         """Installation routine
@@ -165,7 +168,7 @@ class Plugin:
         """
         from ..controller import pluginController
 
-        return pluginController.get_setting(self.id, name, **kwargs)
+        return pluginController.get_setting(self.id)
 
     def set_setting(self, name: str, value):
         """Save setting in database
@@ -287,7 +290,7 @@ class AuthPlugin(Plugin):
         """
         raise NotFound
 
-    def set_avatar(self, user, file: FileStorage):
+    def set_avatar(self, user, file):
         """Set the avatar for given user (if supported by auth backend)
 
         Default behavior is to use native Image objects stored on the Flaschengeist server

flaschengeist/plugins/auth_ldap/__init__.py

@@ -17,8 +17,10 @@ from flaschengeist.plugins import AuthPlugin, before_role_updated
 
 
 class AuthLDAP(AuthPlugin):
-    def __init__(self, entry_point, config):
-        super().__init__(entry_point, config)
+    id = "auth_ldap"
+
+    def __init__(self, config):
+        super().__init__()
         app.config.update(
             LDAP_SERVER=config.get("host", "localhost"),
             LDAP_PORT=config.get("port", 389),

flaschengeist/plugins/balance/__init__.py

@@ -57,15 +57,17 @@ def service_debit():
 
 
 class BalancePlugin(Plugin):
+    """Balance Plugin"""
+
+    id = "dev.flaschengeist.balance"
+    blueprint = Blueprint("balance", __name__)
     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
-
-        self.blueprint = blueprint
+    def __init__(self, config):
+        super(BalancePlugin, self).__init__(config)
+        from . import routes
 
         self.migrations_path = (pathlib.Path(__file__).parent / "migrations").resolve()
 

flaschengeist/plugins/balance/routes.py

@@ -1,6 +1,6 @@
 from datetime import datetime, timezone
 from werkzeug.exceptions import Forbidden, BadRequest
-from flask import Blueprint, request, jsonify
+from flask import request, jsonify
 
 from flaschengeist.utils import HTTP
 from flaschengeist.models.session import Session
@@ -18,10 +18,7 @@ def str2bool(string: str):
     raise ValueError
 
 
-blueprint = Blueprint("balance", __package__)
-
-
-@blueprint.route("/users/<userid>/balance/shortcuts", methods=["GET", "PUT"])
+@BalancePlugin.blueprint.route("/users/<userid>/balance/shortcuts", methods=["GET", "PUT"])
 @login_required()
 def get_shortcuts(userid, current_session: Session):
     """Get balance shortcuts of an user
@@ -53,7 +50,7 @@ def get_shortcuts(userid, current_session: Session):
         return HTTP.no_content()
 
 
-@blueprint.route("/users/<userid>/balance/limit", methods=["GET"])
+@BalancePlugin.blueprint.route("/users/<userid>/balance/limit", methods=["GET"])
 @login_required()
 def get_limit(userid, current_session: Session):
     """Get limit of an user
@@ -76,7 +73,7 @@ def get_limit(userid, current_session: Session):
     return {"limit": balance_controller.get_limit(user)}
 
 
-@blueprint.route("/users/<userid>/balance/limit", methods=["PUT"])
+@BalancePlugin.blueprint.route("/users/<userid>/balance/limit", methods=["PUT"])
 @login_required(permissions.SET_LIMIT)
 def set_limit(userid, current_session: Session):
     """Set the limit of an user
@@ -102,7 +99,7 @@ def set_limit(userid, current_session: Session):
     return HTTP.no_content()
 
 
-@blueprint.route("/users/balance/limit", methods=["GET", "PUT"])
+@BalancePlugin.blueprint.route("/users/balance/limit", methods=["GET", "PUT"])
 @login_required(permission=permissions.SET_LIMIT)
 def limits(current_session: Session):
     """Get, Modify limit of all users
@@ -127,7 +124,7 @@ def limits(current_session: Session):
     return HTTP.no_content()
 
 
-@blueprint.route("/users/<userid>/balance", methods=["GET"])
+@BalancePlugin.blueprint.route("/users/<userid>/balance", methods=["GET"])
 @login_required(permission=permissions.SHOW)
 def get_balance(userid, current_session: Session):
     """Get balance of user, optionally filtered
@@ -165,7 +162,7 @@ def get_balance(userid, current_session: Session):
     return {"credit": balance[0], "debit": balance[1], "balance": balance[2]}
 
 
-@blueprint.route("/users/<userid>/balance/transactions", methods=["GET"])
+@BalancePlugin.blueprint.route("/users/<userid>/balance/transactions", methods=["GET"])
 @login_required(permission=permissions.SHOW)
 def get_transactions(userid, current_session: Session):
     """Get transactions of user, optionally filtered
@@ -226,7 +223,7 @@ def get_transactions(userid, current_session: Session):
     return {"transactions": transactions, "count": count}
 
 
-@blueprint.route("/users/<userid>/balance", methods=["PUT"])
+@BalancePlugin.blueprint.route("/users/<userid>/balance", methods=["PUT"])
 @login_required()
 def change_balance(userid, current_session: Session):
     """Change balance of an user
@@ -275,7 +272,7 @@ def change_balance(userid, current_session: Session):
     raise Forbidden
 
 
-@blueprint.route("/balance/<int:transaction_id>", methods=["DELETE"])
+@BalancePlugin.blueprint.route("/balance/<int:transaction_id>", methods=["DELETE"])
 @login_required()
 def reverse_transaction(transaction_id, current_session: Session):
     """Reverse a transaction
@@ -300,7 +297,7 @@ def reverse_transaction(transaction_id, current_session: Session):
     raise Forbidden
 
 
-@blueprint.route("/balance", methods=["GET"])
+@BalancePlugin.blueprint.route("/balance", methods=["GET"])
 @login_required(permission=permissions.SHOW_OTHER)
 def get_balances(current_session: Session):
     """Get all balances

flaschengeist/plugins/message_mail.py

@@ -12,8 +12,10 @@ from . import Plugin
 
 
 class MailMessagePlugin(Plugin):
-    def __init__(self, entry_point, config):
-        super().__init__(entry_point, config)
+    id = "dev.flaschengeist.mail_plugin"
+
+    def __init__(self, config):
+        super().__init__()
         self.server = config["SERVER"]
         self.port = config["PORT"]
         self.user = config["USER"]

flaschengeist/plugins/pricelist/__init__.py

@@ -16,24 +16,22 @@ from . import models
 from . import pricelist_controller, permissions
 
 
-blueprint = Blueprint("pricelist", __name__, url_prefix="/pricelist")
-
-
 class PriceListPlugin(Plugin):
+    id = "dev.flaschengeist.pricelist"
     permissions = permissions.permissions
+    blueprint = Blueprint("pricelist", __name__, url_prefix="/pricelist")
     plugin = LocalProxy(lambda: current_app.config["FG_PLUGINS"][PriceListPlugin.name])
     models = models
 
-    def __init__(self, entry_point, config=None):
-        super().__init__(entry_point, config)
-        self.blueprint = blueprint
+    def __init__(self, cfg):
+        super().__init__(cfg)
         self.migrations_path = (pathlib.Path(__file__).parent / "migrations").resolve()
         config = {"discount": 0}
-        config.update(config)
+        config.update(cfg)
 
 
-@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)
 
@@ -53,7 +51,7 @@ 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
@@ -75,7 +73,7 @@ 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
@@ -98,7 +96,7 @@ 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
@@ -116,8 +114,8 @@ 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)
 
@@ -137,7 +135,7 @@ 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
@@ -157,7 +155,7 @@ 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
@@ -178,7 +176,7 @@ 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
@@ -196,8 +194,8 @@ 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)
 
@@ -253,7 +251,7 @@ 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``
@@ -302,7 +300,7 @@ 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
 
@@ -323,7 +321,7 @@ 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
@@ -375,7 +373,7 @@ 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
@@ -429,7 +427,7 @@ 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
@@ -447,7 +445,7 @@ 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
@@ -465,7 +463,7 @@ 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
@@ -483,7 +481,7 @@ 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
@@ -499,7 +497,7 @@ 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
@@ -517,7 +515,7 @@ 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
@@ -536,7 +534,7 @@ 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
@@ -556,7 +554,7 @@ 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
@@ -574,7 +572,7 @@ 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
@@ -595,7 +593,7 @@ 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
@@ -618,7 +616,7 @@ 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
@@ -650,7 +648,7 @@ 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
@@ -681,7 +679,7 @@ 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
@@ -714,7 +712,7 @@ 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
@@ -741,7 +739,7 @@ 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/roles/__init__.py

@@ -16,6 +16,7 @@ from . import permissions
 
 
 class RolesPlugin(Plugin):
+    id = "dev.flaschengeist.roles"
     blueprint = Blueprint("roles", __name__)
     permissions = permissions.permissions
 

flaschengeist/plugins/scheduler.py

@@ -1,5 +1,6 @@
-from flask import Blueprint
+import pkg_resources
 from datetime import datetime, timedelta
+from flask import Blueprint
 
 from flaschengeist import logger
 from flaschengeist.utils.HTTP import no_content
@@ -39,9 +40,15 @@ 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__)
+    id = "dev.flaschengeist.scheduler"
+    name = "scheduler"
+    blueprint = Blueprint(name, __name__)
+
+    def __init__(self, config=None):
+        """Constructor called by create_app
+        Args:
+            config: Dict configuration containing the plugin section
+        """
 
         def __view_func():
             self.run_tasks()
@@ -53,6 +60,7 @@ class SchedulerPlugin(Plugin):
             except:
                 logger.error("Error while executing scheduled tasks!", exc_info=True)
 
+        self.version = pkg_resources.get_distribution(self.__module__.split(".")[0]).version
         cron = None if config is None else config.get("cron", "passive_web").lower()
 
         if cron is None or cron == "passive_web":

flaschengeist/plugins/users/__init__.py

@@ -18,6 +18,7 @@ from flaschengeist.utils.datetime import from_iso_format
 
 
 class UsersPlugin(Plugin):
+    id = "dev.flaschengeist.users"
     blueprint = Blueprint("users", __name__)
     permissions = permissions.permissions
 

setup.cfg

@@ -23,13 +23,11 @@ python_requires = >=3.9
 packages = find:
 install_requires =
     Flask >= 2.0
+    Flask-Cors >= 3.0
+    Flask-Migrate >= 3.1.0 
+    Flask-SQLAlchemy >= 2.5
     Pillow >= 8.4.0
-    flask_cors
-    flask_migrate>=3.1.0
-    flask_sqlalchemy>=2.5
-    # Importlib requirement can be dropped when python requirement is >= 3.10
-    importlib_metadata>=4.3
-    sqlalchemy>=1.4.26
+    SQLAlchemy >= 1.4.28
     toml
     werkzeug >= 2.0