Red-DiscordBot/redbot/cogs/permissions/mass_resolution.py
Michael H 3d6020b9cf [V3/permissions] Performance improvements (#1885)
* basic caching layer

* bit more work, now with an upper size to the cache

* cache fix

* smarter cache invalidation

* One more cache case

* Put in a bare skeleton of something else still needed

* more logic handling improvements

* more work, still not finished

* mass-resolve is done in theory, but needs testing

* small bugfixin + comments

* add note about before/after hooks

* LRU-dict fix

* when making comments about optimizations, provide historical context

* fmt pass
2018-07-12 02:56:08 +02:00

103 lines
3.4 KiB
Python

from redbot.core import commands
from redbot.core.config import Config
from .resolvers import entries_from_ctx, resolve_lists
# This has optimizations in it that may not hold True if other parts of the permission
# model are changed from the state they are in currently.
# (commit hash ~ 3bcf375204c22271ad3ed1fc059b598b751aa03f)
#
# This is primarily to help with the performance of the help formatter
# This is less efficient if only checking one command,
# but is much faster for checking all of them.
async def mass_resolve(*, ctx: commands.Context, config: Config):
"""
Get's all the permission cog interactions for all loaded commands
in the given context.
"""
owner_settings = await config.owner_models()
guild_owner_settings = await config.guild(ctx.guild).owner_models() if ctx.guild else None
ret = {"allowed": [], "denied": [], "default": []}
for cogname, cog in ctx.bot.cogs.items():
cog_setting = resolve_cog_or_command(
objname=cogname, models=owner_settings, ctx=ctx, typ="cogs"
)
if cog_setting is None and guild_owner_settings:
cog_setting = resolve_cog_or_command(
objname=cogname, models=guild_owner_settings, ctx=ctx, typ="cogs"
)
for command in [c for c in ctx.bot.all_commands.values() if c.instance is cog]:
resolution = recursively_resolve(
com_or_group=command,
o_models=owner_settings,
g_models=guild_owner_settings,
ctx=ctx,
)
for com, resolved in resolution:
if resolved is None:
resolved = cog_setting
if resolved is True:
ret["allowed"].append(com)
elif resolved is False:
ret["denied"].append(com)
else:
ret["default"].append(com)
ret = {k: set(v) for k, v in ret.items()}
return ret
def recursively_resolve(*, com_or_group, o_models, g_models, ctx, override=False):
ret = []
if override:
current = False
else:
current = resolve_cog_or_command(
typ="commands", objname=com_or_group.qualified_name, ctx=ctx, models=o_models
)
if current is None and g_models:
current = resolve_cog_or_command(
typ="commands", objname=com_or_group.qualified_name, ctx=ctx, models=o_models
)
ret.append((com_or_group, current))
if isinstance(com_or_group, commands.Group):
for com in com_or_group.commands:
ret.extend(
recursively_resolve(
com_or_group=com,
o_models=o_models,
g_models=g_models,
ctx=ctx,
override=(current is False),
)
)
return ret
def resolve_cog_or_command(*, typ, ctx, objname, models: dict) -> bool:
"""
Resolves models in order.
"""
resolved = None
if objname in models.get(typ, {}):
blacklist = models[typ][objname].get("deny", [])
whitelist = models[typ][objname].get("allow", [])
resolved = resolve_lists(ctx=ctx, whitelist=whitelist, blacklist=blacklist)
if resolved is not None:
return resolved
resolved = models[typ][objname].get("default", None)
if resolved is not None:
return resolved
return None