Implement basic permissions system

houdini/data/permission.py

@@ -19,3 +19,10 @@ class PermissionCrumbsCollection(BaseCrumbsCollection):
                          inventory_key='penguin_id',
                          inventory_value='permission_id',
                          inventory_id=inventory_id)
+
+    async def register(self, permission_name):
+        try:
+            permission = await self.get(permission_name)
+        except KeyError:
+            permission = await self.set(name=permission_name)
+        return permission

houdini/houdini.py

@@ -29,7 +29,6 @@ from houdini.data.stamp import StampCrumbsCollection
 from houdini.data.ninja import CardCrumbsCollection
 from houdini.data.mail import PostcardCrumbsCollection
 from houdini.data.pet import PuffleCrumbsCollection, PuffleItemCrumbsCollection
-
 from houdini.data.permission import PermissionCrumbsCollection
 
 try:
@@ -77,6 +76,7 @@ class HoudiniFactory:
         self.commands = CommandManager(self)
         self.plugins = PluginManager(self)
 
+        self.permissions = None
 
         self.items = None
         self.igloos = None
@@ -208,6 +208,8 @@ class HoudiniFactory:
         self.puffle_items = await PuffleItemCrumbsCollection.get_collection()
         self.logger.info('Loaded {} puffle care items'.format(len(self.puffle_items)))
 
+        self.permissions = await PermissionCrumbsCollection.get_collection()
+
         handlers_path = './houdini{}handlers'.format(os.path.sep)
         plugins_path = './houdini{}plugins'.format(os.path.sep)
         self.configure_observers([handlers_path, ListenerFileEventHandler],

houdini/penguin.py

@@ -1,10 +1,12 @@
 from houdini.spheniscidae import Spheniscidae
 
+from houdini.data.permission import PermissionCrumbsCollection
 
 class Penguin(Spheniscidae):
 
     __slots__ = ['x', 'y', 'room', 'waddle', 'table', 'data', 'member',
                  'membership_days', 'avatar', 'walking_puffle']
+                 'walking_puffle', 'permissions']
 
     def __init__(self, *args):
         super().__init__(*args)
@@ -23,6 +25,8 @@ class Penguin(Spheniscidae):
 
         self.walking_puffle = None
 
+        self.permissions = None
+
         self.logger.debug('New penguin created')
 
     @property
@@ -37,6 +41,11 @@ class Penguin(Spheniscidae):
     def penguin_state(self):
         return str()
 
+
+    async def load(self):
+        if self.data:
+            self.permissions = await PermissionCrumbsCollection.get_collection(self.data.id)
+
     async def add_inventory(self, item):
         pass
 

houdini/permissions.py

@@ -0,0 +1,13 @@
+from houdini.handlers import check
+
+
+def has(permission_name, check_above=True):
+    def check_permission(_, p):
+        def check_permission_recursive(permissions, permission):
+            if permission in permissions:
+                return permissions[permission].enabled
+            if '.' in permission and check_above:
+                check_permission_recursive(permissions, '.'.join(permission.split('.')[:-1]))
+            return False
+        return check_permission_recursive(p.permissions, permission_name)
+    return check(check_permission)