tuxbot-bot/venv/lib/python3.7/site-packages/discord/permissions.py
2019-12-16 18:12:10 +01:00

637 lines
20 KiB
Python

# -*- coding: utf-8 -*-
"""
The MIT License (MIT)
Copyright (c) 2015-2019 Rapptz
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
"""
class Permissions:
"""Wraps up the Discord permission value.
The properties provided are two way. You can set and retrieve individual
bits using the properties as if they were regular bools. This allows
you to edit permissions.
.. container:: operations
.. describe:: x == y
Checks if two permissions are equal.
.. describe:: x != y
Checks if two permissions are not equal.
.. describe:: x <= y
Checks if a permission is a subset of another permission.
.. describe:: x >= y
Checks if a permission is a superset of another permission.
.. describe:: x < y
Checks if a permission is a strict subset of another permission.
.. describe:: x > y
Checks if a permission is a strict superset of another permission.
.. describe:: hash(x)
Return the permission's hash.
.. describe:: iter(x)
Returns an iterator of ``(perm, value)`` pairs. This allows it
to be, for example, constructed as a dict or a list of pairs.
Attributes
-----------
value
The raw value. This value is a bit array field of a 53-bit integer
representing the currently available permissions. You should query
permissions via the properties rather than using this raw value.
"""
__slots__ = ('value',)
def __init__(self, permissions=0):
if not isinstance(permissions, int):
raise TypeError('Expected int parameter, received %s instead.' % permissions.__class__.__name__)
self.value = permissions
def __eq__(self, other):
return isinstance(other, Permissions) and self.value == other.value
def __ne__(self, other):
return not self.__eq__(other)
def __hash__(self):
return hash(self.value)
def __repr__(self):
return '<Permissions value=%s>' % self.value
def _perm_iterator(self):
for attr in dir(self):
# check if it's a property, because if so it's a permission
is_property = isinstance(getattr(self.__class__, attr), property)
if is_property:
yield (attr, getattr(self, attr))
def __iter__(self):
return self._perm_iterator()
def is_subset(self, other):
"""Returns ``True`` if self has the same or fewer permissions as other."""
if isinstance(other, Permissions):
return (self.value & other.value) == self.value
else:
raise TypeError("cannot compare {} with {}".format(self.__class__.__name__, other.__class__.__name__))
def is_superset(self, other):
"""Returns ``True`` if self has the same or more permissions as other."""
if isinstance(other, Permissions):
return (self.value | other.value) == self.value
else:
raise TypeError("cannot compare {} with {}".format(self.__class__.__name__, other.__class__.__name__))
def is_strict_subset(self, other):
"""Returns ``True`` if the permissions on other are a strict subset of those on self."""
return self.is_subset(other) and self != other
def is_strict_superset(self, other):
"""Returns ``True`` if the permissions on other are a strict superset of those on self."""
return self.is_superset(other) and self != other
__le__ = is_subset
__ge__ = is_superset
__lt__ = is_strict_subset
__gt__ = is_strict_superset
@classmethod
def none(cls):
"""A factory method that creates a :class:`Permissions` with all
permissions set to ``False``."""
return cls(0)
@classmethod
def all(cls):
"""A factory method that creates a :class:`Permissions` with all
permissions set to True."""
return cls(0b01111111111101111111111111111111)
@classmethod
def all_channel(cls):
"""A :class:`Permissions` with all channel-specific permissions set to
``True`` and the guild-specific ones set to ``False``. The guild-specific
permissions are currently:
- manage_guild
- kick_members
- ban_members
- administrator
- change_nickname
- manage_nicknames
"""
return cls(0b00110011111101111111110001010001)
@classmethod
def general(cls):
"""A factory method that creates a :class:`Permissions` with all
"General" permissions from the official Discord UI set to ``True``."""
return cls(0b01111100000000000000000010111111)
@classmethod
def text(cls):
"""A factory method that creates a :class:`Permissions` with all
"Text" permissions from the official Discord UI set to ``True``."""
return cls(0b00000000000001111111110001000000)
@classmethod
def voice(cls):
"""A factory method that creates a :class:`Permissions` with all
"Voice" permissions from the official Discord UI set to ``True``."""
return cls(0b00000011111100000000001100000000)
def update(self, **kwargs):
r"""Bulk updates this permission object.
Allows you to set multiple attributes by using keyword
arguments. The names must be equivalent to the properties
listed. Extraneous key/value pairs will be silently ignored.
Parameters
------------
\*\*kwargs
A list of key/value pairs to bulk update permissions with.
"""
for key, value in kwargs.items():
try:
is_property = isinstance(getattr(self.__class__, key), property)
except AttributeError:
continue
if is_property:
setattr(self, key, value)
def _bit(self, index):
return bool((self.value >> index) & 1)
def _set(self, index, value):
if value is True:
self.value |= (1 << index)
elif value is False:
self.value &= ~(1 << index)
else:
raise TypeError('Value to set for Permissions must be a bool.')
def handle_overwrite(self, allow, deny):
# Basically this is what's happening here.
# We have an original bit array, e.g. 1010
# Then we have another bit array that is 'denied', e.g. 1111
# And then we have the last one which is 'allowed', e.g. 0101
# We want original OP denied to end up resulting in
# whatever is in denied to be set to 0.
# So 1010 OP 1111 -> 0000
# Then we take this value and look at the allowed values.
# And whatever is allowed is set to 1.
# So 0000 OP2 0101 -> 0101
# The OP is base & ~denied.
# The OP2 is base | allowed.
self.value = (self.value & ~deny) | allow
@property
def create_instant_invite(self):
""":class:`bool`: Returns ``True`` if the user can create instant invites."""
return self._bit(0)
@create_instant_invite.setter
def create_instant_invite(self, value):
self._set(0, value)
@property
def kick_members(self):
""":class:`bool`: Returns ``True`` if the user can kick users from the guild."""
return self._bit(1)
@kick_members.setter
def kick_members(self, value):
self._set(1, value)
@property
def ban_members(self):
""":class:`bool`: Returns ``True`` if a user can ban users from the guild."""
return self._bit(2)
@ban_members.setter
def ban_members(self, value):
self._set(2, value)
@property
def administrator(self):
""":class:`bool`: Returns ``True`` if a user is an administrator. This role overrides all other permissions.
This also bypasses all channel-specific overrides.
"""
return self._bit(3)
@administrator.setter
def administrator(self, value):
self._set(3, value)
@property
def manage_channels(self):
""":class:`bool`: Returns ``True`` if a user can edit, delete, or create channels in the guild.
This also corresponds to the "Manage Channel" channel-specific override."""
return self._bit(4)
@manage_channels.setter
def manage_channels(self, value):
self._set(4, value)
@property
def manage_guild(self):
""":class:`bool`: Returns ``True`` if a user can edit guild properties."""
return self._bit(5)
@manage_guild.setter
def manage_guild(self, value):
self._set(5, value)
@property
def add_reactions(self):
""":class:`bool`: Returns ``True`` if a user can add reactions to messages."""
return self._bit(6)
@add_reactions.setter
def add_reactions(self, value):
self._set(6, value)
@property
def view_audit_log(self):
""":class:`bool`: Returns ``True`` if a user can view the guild's audit log."""
return self._bit(7)
@view_audit_log.setter
def view_audit_log(self, value):
self._set(7, value)
@property
def priority_speaker(self):
""":class:`bool`: Returns ``True`` if a user can be more easily heard while talking."""
return self._bit(8)
@priority_speaker.setter
def priority_speaker(self, value):
self._set(8, value)
@property
def stream(self):
""":class:`bool`: Returns ``True`` if a user can stream in a voice channel."""
return self._bit(9)
@stream.setter
def stream(self, value):
self._set(9, value)
@property
def read_messages(self):
""":class:`bool`: Returns ``True`` if a user can read messages from all or specific text channels."""
return self._bit(10)
@read_messages.setter
def read_messages(self, value):
self._set(10, value)
@property
def send_messages(self):
""":class:`bool`: Returns ``True`` if a user can send messages from all or specific text channels."""
return self._bit(11)
@send_messages.setter
def send_messages(self, value):
self._set(11, value)
@property
def send_tts_messages(self):
""":class:`bool`: Returns ``True`` if a user can send TTS messages from all or specific text channels."""
return self._bit(12)
@send_tts_messages.setter
def send_tts_messages(self, value):
self._set(12, value)
@property
def manage_messages(self):
""":class:`bool`: Returns ``True`` if a user can delete or pin messages in a text channel.
.. note::
Note that there are currently no ways to edit other people's messages.
"""
return self._bit(13)
@manage_messages.setter
def manage_messages(self, value):
self._set(13, value)
@property
def embed_links(self):
""":class:`bool`: Returns ``True`` if a user's messages will automatically be embedded by Discord."""
return self._bit(14)
@embed_links.setter
def embed_links(self, value):
self._set(14, value)
@property
def attach_files(self):
""":class:`bool`: Returns ``True`` if a user can send files in their messages."""
return self._bit(15)
@attach_files.setter
def attach_files(self, value):
self._set(15, value)
@property
def read_message_history(self):
""":class:`bool`: Returns ``True`` if a user can read a text channel's previous messages."""
return self._bit(16)
@read_message_history.setter
def read_message_history(self, value):
self._set(16, value)
@property
def mention_everyone(self):
""":class:`bool`: Returns ``True`` if a user's @everyone or @here will mention everyone in the text channel."""
return self._bit(17)
@mention_everyone.setter
def mention_everyone(self, value):
self._set(17, value)
@property
def external_emojis(self):
""":class:`bool`: Returns ``True`` if a user can use emojis from other guilds."""
return self._bit(18)
@external_emojis.setter
def external_emojis(self, value):
self._set(18, value)
# 1 unused
@property
def connect(self):
""":class:`bool`: Returns ``True`` if a user can connect to a voice channel."""
return self._bit(20)
@connect.setter
def connect(self, value):
self._set(20, value)
@property
def speak(self):
""":class:`bool`: Returns ``True`` if a user can speak in a voice channel."""
return self._bit(21)
@speak.setter
def speak(self, value):
self._set(21, value)
@property
def mute_members(self):
""":class:`bool`: Returns ``True`` if a user can mute other users."""
return self._bit(22)
@mute_members.setter
def mute_members(self, value):
self._set(22, value)
@property
def deafen_members(self):
""":class:`bool`: Returns ``True`` if a user can deafen other users."""
return self._bit(23)
@deafen_members.setter
def deafen_members(self, value):
self._set(23, value)
@property
def move_members(self):
""":class:`bool`: Returns ``True`` if a user can move users between other voice channels."""
return self._bit(24)
@move_members.setter
def move_members(self, value):
self._set(24, value)
@property
def use_voice_activation(self):
""":class:`bool`: Returns ``True`` if a user can use voice activation in voice channels."""
return self._bit(25)
@use_voice_activation.setter
def use_voice_activation(self, value):
self._set(25, value)
@property
def change_nickname(self):
""":class:`bool`: Returns ``True`` if a user can change their nickname in the guild."""
return self._bit(26)
@change_nickname.setter
def change_nickname(self, value):
self._set(26, value)
@property
def manage_nicknames(self):
""":class:`bool`: Returns ``True`` if a user can change other user's nickname in the guild."""
return self._bit(27)
@manage_nicknames.setter
def manage_nicknames(self, value):
self._set(27, value)
@property
def manage_roles(self):
""":class:`bool`: Returns ``True`` if a user can create or edit roles less than their role's position.
This also corresponds to the "Manage Permissions" channel-specific override.
"""
return self._bit(28)
@manage_roles.setter
def manage_roles(self, value):
self._set(28, value)
@property
def manage_webhooks(self):
""":class:`bool`: Returns ``True`` if a user can create, edit, or delete webhooks."""
return self._bit(29)
@manage_webhooks.setter
def manage_webhooks(self, value):
self._set(29, value)
@property
def manage_emojis(self):
""":class:`bool`: Returns ``True`` if a user can create, edit, or delete emojis."""
return self._bit(30)
@manage_emojis.setter
def manage_emojis(self, value):
self._set(30, value)
# 1 unused
# after these 32 bits, there's 21 more unused ones technically
def augment_from_permissions(cls):
cls.VALID_NAMES = {name for name in dir(Permissions) if isinstance(getattr(Permissions, name), property)}
# make descriptors for all the valid names
for name in cls.VALID_NAMES:
# god bless Python
def getter(self, x=name):
return self._values.get(x)
def setter(self, value, x=name):
self._set(x, value)
prop = property(getter, setter)
setattr(cls, name, prop)
return cls
@augment_from_permissions
class PermissionOverwrite:
r"""A type that is used to represent a channel specific permission.
Unlike a regular :class:`Permissions`\, the default value of a
permission is equivalent to ``None`` and not ``False``. Setting
a value to ``False`` is **explicitly** denying that permission,
while setting a value to ``True`` is **explicitly** allowing
that permission.
The values supported by this are the same as :class:`Permissions`
with the added possibility of it being set to ``None``.
Supported operations:
+-----------+------------------------------------------+
| Operation | Description |
+===========+==========================================+
| x == y | Checks if two overwrites are equal. |
+-----------+------------------------------------------+
| x != y | Checks if two overwrites are not equal. |
+-----------+------------------------------------------+
| iter(x) | Returns an iterator of (perm, value) |
| | pairs. This allows this class to be used |
| | as an iterable in e.g. set/list/dict |
| | constructions. |
+-----------+------------------------------------------+
Parameters
-----------
\*\*kwargs
Set the value of permissions by their name.
"""
__slots__ = ('_values',)
def __init__(self, **kwargs):
self._values = {}
for key, value in kwargs.items():
if key not in self.VALID_NAMES:
raise ValueError('no permission called {0}.'.format(key))
setattr(self, key, value)
def __eq__(self, other):
return self._values == other._values
def _set(self, key, value):
if value not in (True, None, False):
raise TypeError('Expected bool or NoneType, received {0.__class__.__name__}'.format(value))
self._values[key] = value
def pair(self):
"""Returns the (allow, deny) pair from this overwrite.
The value of these pairs is :class:`Permissions`.
"""
allow = Permissions.none()
deny = Permissions.none()
for key, value in self._values.items():
if value is True:
setattr(allow, key, True)
elif value is False:
setattr(deny, key, True)
return allow, deny
@classmethod
def from_pair(cls, allow, deny):
"""Creates an overwrite from an allow/deny pair of :class:`Permissions`."""
ret = cls()
for key, value in allow:
if value is True:
setattr(ret, key, True)
for key, value in deny:
if value is True:
setattr(ret, key, False)
return ret
def is_empty(self):
"""Checks if the permission overwrite is currently empty.
An empty permission overwrite is one that has no overwrites set
to ``True`` or ``False``.
"""
return all(x is None for x in self._values.values())
def update(self, **kwargs):
r"""Bulk updates this permission overwrite object.
Allows you to set multiple attributes by using keyword
arguments. The names must be equivalent to the properties
listed. Extraneous key/value pairs will be silently ignored.
Parameters
------------
\*\*kwargs
A list of key/value pairs to bulk update with.
"""
for key, value in kwargs.items():
if key not in self.VALID_NAMES:
continue
setattr(self, key, value)
def __iter__(self):
for key in self.VALID_NAMES:
yield key, self._values.get(key)