New permissions system :D

plugins/sieve.py

@@ -0,0 +1,75 @@
+import re
+
+from util import hook, text
+from fnmatch import fnmatch
+
+
+@hook.sieve
+def sieve_suite(bot, input, func, kind, args):
+    if input.command == 'PRIVMSG' and\
+       input.nick.endswith('bot') and args.get('ignorebots', True):
+            return None
+
+    if kind == "command":
+        if input.trigger in bot.config.get('disabled_commands', []):
+            return None
+
+    fn = re.match(r'^plugins.(.+).py$', func._filename)
+    disabled = bot.config.get('disabled_plugins', [])
+    if fn and fn.group(1).lower() in disabled:
+        return None
+
+    acl = bot.config.get('acls', {}).get(func.__name__)
+    if acl:
+        if 'deny-except' in acl:
+            allowed_channels = map(unicode.lower, acl['deny-except'])
+            if input.chan.lower() not in allowed_channels:
+                return None
+        if 'allow-except' in acl:
+            denied_channels = map(unicode.lower, acl['allow-except'])
+            if input.chan.lower() in denied_channels:
+                return None
+
+    # shim so plugins using the old "adminonly" permissions format still work
+    if args.get('adminonly', False):
+        args['perms'] = ["adminonly"]
+
+
+    if args.get('permissions', False):
+        groups = bot.config.get("permission_groups", [])
+        group_users = bot.config.get("permission_users", [])
+
+        allowed_permissions = args.get('permissions', [])
+
+
+        allowed_groups = []
+
+        # loop over every group
+        for name, permissions in groups.iteritems():
+            # loop over every permission the command allows
+            for permission in allowed_permissions:
+                # see if the group has that permission
+                if permission in permissions:
+                    # if so, add the group name to the allowed_groups list
+                    allowed_groups.append(name)
+
+
+        if not allowed_groups:
+            print "Something is wrong. A hook requires {} but" \
+                  " there are no groups with that permission!".format(str(allowed_permissions))
+
+        mask = input.mask.lower()
+
+        # make all masks lowercase
+        for group, masks in group_users.iteritems():
+            group_users[group] = [_mask.lower() for _mask in masks]
+
+        for group in allowed_groups:
+            for pattern in group_users[group]:
+                if fnmatch(mask, pattern):
+                    return input
+
+        input.notice("Sorry, you are not allowed to use this command.")
+        return None
+
+    return input