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861 lines
28 KiB
861 lines
28 KiB
# -*- coding: utf-8 -*-
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"""
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The MIT License (MIT)
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Copyright (c) 2015-2017 Rapptz
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Permission is hereby granted, free of charge, to any person obtaining a
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copy of this software and associated documentation files (the "Software"),
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to deal in the Software without restriction, including without limitation
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the rights to use, copy, modify, merge, publish, distribute, sublicense,
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and/or sell copies of the Software, and to permit persons to whom the
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Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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DEALINGS IN THE SOFTWARE.
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"""
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import abc
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import copy
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import asyncio
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from collections import namedtuple
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from .iterators import HistoryIterator
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from .context_managers import Typing
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from .errors import InvalidArgument, ClientException
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from .permissions import PermissionOverwrite, Permissions
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from .role import Role
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from .invite import Invite
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from .file import File
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from .voice_client import VoiceClient
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from . import utils, compat
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class _Undefined:
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def __repr__(self):
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return 'see-below'
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_undefined = _Undefined()
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class Snowflake(metaclass=abc.ABCMeta):
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__slots__ = ()
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@property
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@abc.abstractmethod
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def created_at(self):
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raise NotImplementedError
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@classmethod
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def __subclasshook__(cls, C):
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if cls is Snowflake:
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mro = C.__mro__
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for attr in ('created_at', 'id'):
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for base in mro:
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if attr in base.__dict__:
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break
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else:
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return NotImplemented
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return True
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return NotImplemented
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class User(metaclass=abc.ABCMeta):
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__slots__ = ()
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@property
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@abc.abstractmethod
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def display_name(self):
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raise NotImplementedError
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@property
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@abc.abstractmethod
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def mention(self):
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raise NotImplementedError
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@classmethod
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def __subclasshook__(cls, C):
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if cls is User:
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if Snowflake.__subclasshook__(C) is NotImplemented:
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return NotImplemented
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mro = C.__mro__
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for attr in ('display_name', 'mention', 'name', 'avatar', 'discriminator', 'bot'):
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for base in mro:
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if attr in base.__dict__:
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break
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else:
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return NotImplemented
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return True
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return NotImplemented
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class PrivateChannel(metaclass=abc.ABCMeta):
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__slots__ = ()
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@classmethod
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def __subclasshook__(cls, C):
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if cls is PrivateChannel:
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if Snowflake.__subclasshook__(C) is NotImplemented:
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return NotImplemented
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mro = C.__mro__
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for base in mro:
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if 'me' in base.__dict__:
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return True
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return NotImplemented
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return NotImplemented
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_Overwrites = namedtuple('_Overwrites', 'id allow deny type')
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class GuildChannel:
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__slots__ = ()
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def __str__(self):
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return self.name
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@asyncio.coroutine
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def _move(self, position, *, reason):
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if position < 0:
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raise InvalidArgument('Channel position cannot be less than 0.')
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http = self._state.http
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cls = type(self)
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channels = [c for c in self.guild.channels if isinstance(c, cls)]
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if position >= len(channels):
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raise InvalidArgument('Channel position cannot be greater than {}'.format(len(channels) - 1))
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channels.sort(key=lambda c: c.position)
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try:
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# remove ourselves from the channel list
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channels.remove(self)
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except ValueError:
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# not there somehow lol
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return
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else:
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# add ourselves at our designated position
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channels.insert(position, self)
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payload = [{'id': c.id, 'position': index } for index, c in enumerate(channels)]
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yield from http.move_channel_position(self.guild.id, payload, reason=reason)
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def _fill_overwrites(self, data):
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self._overwrites = []
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everyone_index = 0
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everyone_id = self.guild.id
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for index, overridden in enumerate(data.get('permission_overwrites', [])):
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overridden_id = int(overridden.pop('id'))
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self._overwrites.append(_Overwrites(id=overridden_id, **overridden))
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if overridden['type'] == 'member':
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continue
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if overridden_id == everyone_id:
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# the @everyone role is not guaranteed to be the first one
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# in the list of permission overwrites, however the permission
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# resolution code kind of requires that it is the first one in
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# the list since it is special. So we need the index so we can
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# swap it to be the first one.
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everyone_index = index
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# do the swap
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tmp = self._overwrites
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if tmp:
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tmp[everyone_index], tmp[0] = tmp[0], tmp[everyone_index]
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@property
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def changed_roles(self):
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"""Returns a list of :class:`Roles` that have been overridden from
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their default values in the :attr:`Guild.roles` attribute."""
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ret = []
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for overwrite in filter(lambda o: o.type == 'role', self._overwrites):
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role = utils.get(self.guild.roles, id=overwrite.id)
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if role is None:
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continue
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role = copy.copy(role)
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role.permissions.handle_overwrite(overwrite.allow, overwrite.deny)
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ret.append(role)
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return ret
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def is_default(self):
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"""bool : Indicates if this is the default channel for the :class:`Guild` it belongs to."""
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return self.guild.id == self.id
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@property
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def mention(self):
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"""str : The string that allows you to mention the channel."""
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return '<#%s>' % self.id
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@property
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def created_at(self):
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"""Returns the channel's creation time in UTC."""
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return utils.snowflake_time(self.id)
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def overwrites_for(self, obj):
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"""Returns the channel-specific overwrites for a member or a role.
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Parameters
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-----------
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obj
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The :class:`Role` or :class:`abc.User` denoting
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whose overwrite to get.
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Returns
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---------
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:class:`PermissionOverwrite`
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The permission overwrites for this object.
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"""
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if isinstance(obj, User):
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predicate = lambda p: p.type == 'member'
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elif isinstance(obj, Role):
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predicate = lambda p: p.type == 'role'
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else:
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predicate = lambda p: True
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for overwrite in filter(predicate, self._overwrites):
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if overwrite.id == obj.id:
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allow = Permissions(overwrite.allow)
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deny = Permissions(overwrite.deny)
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return PermissionOverwrite.from_pair(allow, deny)
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return PermissionOverwrite()
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@property
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def overwrites(self):
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"""Returns all of the channel's overwrites.
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This is returned as a list of two-element tuples containing the target,
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which can be either a :class:`Role` or a :class:`Member` and the overwrite
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as the second element as a :class:`PermissionOverwrite`.
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Returns
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--------
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List[Tuple[Union[:class:`Role`, :class:`Member`], :class:`PermissionOverwrite`]]:
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The channel's permission overwrites.
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"""
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ret = []
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for ow in self._overwrites:
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allow = Permissions(ow.allow)
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deny = Permissions(ow.deny)
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overwrite = PermissionOverwrite.from_pair(allow, deny)
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if ow.type == 'role':
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# accidentally quadratic
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target = utils.find(lambda r: r.id == ow.id, self.guild.roles)
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elif ow.type == 'member':
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target = self.guild.get_member(ow.id)
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ret.append((target, overwrite))
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return ret
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def permissions_for(self, member):
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"""Handles permission resolution for the current :class:`Member`.
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This function takes into consideration the following cases:
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- Guild owner
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- Guild roles
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- Channel overrides
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- Member overrides
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- Whether the channel is the default channel.
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Parameters
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----------
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member : :class:`Member`
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The member to resolve permissions for.
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Returns
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-------
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:class:`Permissions`
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The resolved permissions for the member.
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"""
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# The current cases can be explained as:
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# Guild owner get all permissions -- no questions asked. Otherwise...
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# The @everyone role gets the first application.
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# After that, the applied roles that the user has in the channel
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# (or otherwise) are then OR'd together.
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# After the role permissions are resolved, the member permissions
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# have to take into effect.
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# After all that is done.. you have to do the following:
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# If manage permissions is True, then all permissions are set to
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# True. If the channel is the default channel then everyone gets
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# read permissions regardless.
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# The operation first takes into consideration the denied
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# and then the allowed.
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o = self.guild.owner
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if o is not None and member.id == o.id:
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return Permissions.all()
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default = self.guild.default_role
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base = Permissions(default.permissions.value)
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# Apply guild roles that the member has.
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for role in member.roles:
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base.value |= role.permissions.value
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# Guild-wide Administrator -> True for everything
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# Bypass all channel-specific overrides
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if base.administrator:
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return Permissions.all()
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member_role_ids = set(map(lambda r: r.id, member.roles))
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denies = 0
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allows = 0
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# Apply channel specific role permission overwrites
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for overwrite in self._overwrites:
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if overwrite.type == 'role' and overwrite.id in member_role_ids:
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denies |= overwrite.deny
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allows |= overwrite.allow
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base.handle_overwrite(allow=allows, deny=denies)
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# Apply member specific permission overwrites
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for overwrite in self._overwrites:
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if overwrite.type == 'member' and overwrite.id == member.id:
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base.handle_overwrite(allow=overwrite.allow, deny=overwrite.deny)
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break
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# default channels can always be read
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if self.is_default():
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base.read_messages = True
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# if you can't send a message in a channel then you can't have certain
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# permissions as well
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if not base.send_messages:
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base.send_tts_messages = False
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base.mention_everyone = False
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base.embed_links = False
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base.attach_files = False
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# if you can't read a channel then you have no permissions there
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if not base.read_messages:
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denied = Permissions.all_channel()
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base.value &= ~denied.value
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return base
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@asyncio.coroutine
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def delete(self, *, reason=None):
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"""|coro|
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Deletes the channel.
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You must have Manage Channel permission to use this.
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Parameters
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-----------
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reason: Optional[str]
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The reason for deleting this channel.
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Shows up on the audit log.
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Raises
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-------
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Forbidden
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You do not have proper permissions to delete the channel.
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NotFound
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The channel was not found or was already deleted.
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HTTPException
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Deleting the channel failed.
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"""
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yield from self._state.http.delete_channel(self.id, reason=reason)
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@asyncio.coroutine
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def set_permissions(self, target, *, overwrite=_undefined, reason=None, **permissions):
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"""|coro|
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Sets the channel specific permission overwrites for a target in the
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channel.
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The ``target`` parameter should either be a :class:`Member` or a
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:class:`Role` that belongs to guild.
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The ``overwrite`` parameter, if given, must either be ``None`` or
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:class:`PermissionOverwrite`. For convenience, you can pass in
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keyword arguments denoting :class:`Permissions` attributes. If this is
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done, then you cannot mix the keyword arguments with the ``overwrite``
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parameter.
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If the ``overwrite`` parameter is ``None``, then the permission
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overwrites are deleted.
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You must have :attr:`Permissions.manage_roles` permission to use this.
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Examples
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----------
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Setting allow and deny: ::
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await message.channel.set_permissions(message.author, read_messages=True,
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send_messages=False)
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Deleting overwrites ::
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await channel.set_permissions(member, overwrite=None)
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Using :class:`PermissionOverwrite` ::
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overwrite = PermissionOverwrite()
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overwrite.send_messages = False
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overwrite.read_messages = True
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await channel.set_permissions(member, overwrite=overwrite)
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Parameters
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-----------
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target
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The :class:`Member` or :class:`Role` to overwrite permissions for.
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overwrite: :class:`PermissionOverwrite`
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The permissions to allow and deny to the target.
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\*\*permissions
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A keyword argument list of permissions to set for ease of use.
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Cannot be mixed with ``overwrite``.
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reason: Optional[str]
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The reason for doing this action. Shows up on the audit log.
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Raises
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-------
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Forbidden
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You do not have permissions to edit channel specific permissions.
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HTTPException
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Editing channel specific permissions failed.
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InvalidArgument
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The overwrite parameter invalid or the target type was not
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:class:`Role` or :class:`Member`.
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"""
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http = self._state.http
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if isinstance(target, User):
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perm_type = 'member'
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elif isinstance(target, Role):
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perm_type = 'role'
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else:
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raise InvalidArgument('target parameter must be either Member or Role')
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if isinstance(overwrite, _Undefined):
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if len(permissions) == 0:
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raise InvalidArgument('No overwrite provided.')
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try:
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overwrite = PermissionOverwrite(**permissions)
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except:
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raise InvalidArgument('Invalid permissions given to keyword arguments.')
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else:
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if len(permissions) > 0:
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raise InvalidArgument('Cannot mix overwrite and keyword arguments.')
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# TODO: wait for event
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if overwrite is None:
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yield from http.delete_channel_permissions(self.id, target.id, reason=reason)
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elif isinstance(overwrite, PermissionOverwrite):
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(allow, deny) = overwrite.pair()
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yield from http.edit_channel_permissions(self.id, target.id, allow.value, deny.value, perm_type, reason=reason)
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else:
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raise InvalidArgument('Invalid overwrite type provided.')
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@asyncio.coroutine
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def create_invite(self, *, reason=None, **fields):
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"""|coro|
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Creates an instant invite.
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Parameters
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------------
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max_age : int
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How long the invite should last. If it's 0 then the invite
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doesn't expire. Defaults to 0.
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max_uses : int
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How many uses the invite could be used for. If it's 0 then there
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are unlimited uses. Defaults to 0.
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temporary : bool
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Denotes that the invite grants temporary membership
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(i.e. they get kicked after they disconnect). Defaults to False.
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unique: bool
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Indicates if a unique invite URL should be created. Defaults to True.
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If this is set to False then it will return a previously created
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invite.
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reason: Optional[str]
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The reason for creating this invite. Shows up on the audit log.
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Raises
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-------
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HTTPException
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Invite creation failed.
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Returns
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--------
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:class:`Invite`
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The invite that was created.
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"""
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data = yield from self._state.http.create_invite(self.id, reason=reason, **fields)
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return Invite.from_incomplete(data=data, state=self._state)
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@asyncio.coroutine
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def invites(self):
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"""|coro|
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Returns a list of all active instant invites from this channel.
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You must have proper permissions to get this information.
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Raises
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-------
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Forbidden
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You do not have proper permissions to get the information.
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HTTPException
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An error occurred while fetching the information.
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Returns
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-------
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List[:class:`Invite`]
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The list of invites that are currently active.
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"""
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state = self._state
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data = yield from state.http.invites_from_channel(self.id)
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result = []
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for invite in data:
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invite['channel'] = self
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invite['guild'] = self.guild
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result.append(Invite(state=state, data=invite))
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return result
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|
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class Messageable(metaclass=abc.ABCMeta):
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__slots__ = ()
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|
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@asyncio.coroutine
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@abc.abstractmethod
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def _get_channel(self):
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raise NotImplementedError
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@asyncio.coroutine
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def send(self, content=None, *, tts=False, embed=None, file=None, files=None, reason=None, delete_after=None):
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"""|coro|
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Sends a message to the destination with the content given.
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The content must be a type that can convert to a string through ``str(content)``.
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If the content is set to ``None`` (the default), then the ``embed`` parameter must
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be provided.
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To upload a single file, the ``file`` parameter should be used with a
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single :class:`File` object. To upload multiple files, the ``files``
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parameter should be used with a list of :class:`File` objects.
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**Specifying both parameters will lead to an exception**.
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If the ``embed`` parameter is provided, it must be of type :class:`Embed` and
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it must be a rich embed type.
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Parameters
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------------
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content
|
|
The content of the message to send.
|
|
tts: bool
|
|
Indicates if the message should be sent using text-to-speech.
|
|
embed: :class:`Embed`
|
|
The rich embed for the content.
|
|
file: :class:`File`
|
|
The file to upload.
|
|
files: List[:class:`File`]
|
|
A list of files to upload. Must be a minimum of 2 and a
|
|
maximum of 10.
|
|
delete_after: float
|
|
If provided, the number of seconds to wait in the background
|
|
before deleting the message we just sent. If the deletion fails,
|
|
then it is silently ignored.
|
|
reason: Optional[str]
|
|
The reason for deleting the message, if necessary.
|
|
Shows up on the audit log.
|
|
|
|
Raises
|
|
--------
|
|
HTTPException
|
|
Sending the message failed.
|
|
Forbidden
|
|
You do not have the proper permissions to send the message.
|
|
InvalidArgument
|
|
The ``files`` list is not of the appropriate size or
|
|
you specified both ``file`` and ``files``.
|
|
|
|
Returns
|
|
---------
|
|
:class:`Message`
|
|
The message that was sent.
|
|
"""
|
|
|
|
channel = yield from self._get_channel()
|
|
state = self._state
|
|
content = str(content) if content is not None else None
|
|
if embed is not None:
|
|
embed = embed.to_dict()
|
|
|
|
if file is not None and files is not None:
|
|
raise InvalidArgument('cannot pass both file and files parameter to send()')
|
|
|
|
if file is not None:
|
|
if not isinstance(file, File):
|
|
raise InvalidArgument('file parameter must be File')
|
|
|
|
try:
|
|
data = yield from state.http.send_files(channel.id, files=[(file.open_file(), file.filename)],
|
|
content=content, tts=tts, embed=embed)
|
|
finally:
|
|
file.close()
|
|
|
|
elif files is not None:
|
|
if len(files) < 2 or len(files) > 10:
|
|
raise InvalidArgument('files parameter must be a list of 2 to 10 elements')
|
|
|
|
try:
|
|
param = [(f.open_file(), f.filename) for f in files]
|
|
data = yield from state.http.send_files(channel.id, files=param, content=content, tts=tts, embed=embed)
|
|
finally:
|
|
for f in files:
|
|
f.close()
|
|
else:
|
|
data = yield from state.http.send_message(channel.id, content, tts=tts, embed=embed)
|
|
|
|
ret = state.create_message(channel=channel, data=data)
|
|
if delete_after is not None:
|
|
@asyncio.coroutine
|
|
def delete():
|
|
yield from asyncio.sleep(delete_after, loop=state.loop)
|
|
try:
|
|
yield from ret.delete(reason=reason)
|
|
except:
|
|
pass
|
|
compat.create_task(delete(), loop=state.loop)
|
|
return ret
|
|
|
|
@asyncio.coroutine
|
|
def trigger_typing(self):
|
|
"""|coro|
|
|
|
|
Triggers a *typing* indicator to the destination.
|
|
|
|
*Typing* indicator will go away after 10 seconds, or after a message is sent.
|
|
"""
|
|
|
|
channel = yield from self._get_channel()
|
|
yield from self._state.http.send_typing(channel.id)
|
|
|
|
def typing(self):
|
|
"""Returns a context manager that allows you to type for an indefinite period of time.
|
|
|
|
This is useful for denoting long computations in your bot.
|
|
|
|
.. note::
|
|
|
|
This is both a regular context manager and an async context manager.
|
|
This means that both ``with`` and ``async with`` work with this.
|
|
|
|
Example Usage: ::
|
|
|
|
with channel.typing():
|
|
# do expensive stuff here
|
|
await channel.send('done!')
|
|
|
|
"""
|
|
return Typing(self)
|
|
|
|
@asyncio.coroutine
|
|
def get_message(self, id):
|
|
"""|coro|
|
|
|
|
Retrieves a single :class:`Message` from the destination.
|
|
|
|
This can only be used by bot accounts.
|
|
|
|
Parameters
|
|
------------
|
|
id: int
|
|
The message ID to look for.
|
|
|
|
Returns
|
|
--------
|
|
:class:`Message`
|
|
The message asked for.
|
|
|
|
Raises
|
|
--------
|
|
NotFound
|
|
The specified message was not found.
|
|
Forbidden
|
|
You do not have the permissions required to get a message.
|
|
HTTPException
|
|
Retrieving the message failed.
|
|
"""
|
|
|
|
channel = yield from self._get_channel()
|
|
data = yield from self._state.http.get_message(channel.id, id)
|
|
return self._state.create_message(channel=channel, data=data)
|
|
|
|
@asyncio.coroutine
|
|
def pins(self):
|
|
"""|coro|
|
|
|
|
Returns a list of :class:`Message` that are currently pinned.
|
|
|
|
Raises
|
|
-------
|
|
HTTPException
|
|
Retrieving the pinned messages failed.
|
|
"""
|
|
|
|
channel = yield from self._get_channel()
|
|
state = self._state
|
|
data = yield from state.http.pins_from(channel.id)
|
|
return [state.create_message(channel=channel, data=m) for m in data]
|
|
|
|
def history(self, *, limit=100, before=None, after=None, around=None, reverse=None):
|
|
"""Return an :class:`AsyncIterator` that enables receiving the destination's message history.
|
|
|
|
You must have Read Message History permissions to use this.
|
|
|
|
All parameters are optional.
|
|
|
|
Parameters
|
|
-----------
|
|
limit: Optional[int]
|
|
The number of messages to retrieve.
|
|
If ``None``, retrieves every message in the channel. Note, however,
|
|
that this would make it a slow operation.
|
|
before: :class:`Message` or `datetime`
|
|
Retrieve messages before this date or message.
|
|
If a date is provided it must be a timezone-naive datetime representing UTC time.
|
|
after: :class:`Message` or `datetime`
|
|
Retrieve messages after this date or message.
|
|
If a date is provided it must be a timezone-naive datetime representing UTC time.
|
|
around: :class:`Message` or `datetime`
|
|
Retrieve messages around this date or message.
|
|
If a date is provided it must be a timezone-naive datetime representing UTC time.
|
|
When using this argument, the maximum limit is 101. Note that if the limit is an
|
|
even number then this will return at most limit + 1 messages.
|
|
reverse: bool
|
|
If set to true, return messages in oldest->newest order. If unspecified,
|
|
this defaults to ``False`` for most cases. However if passing in a
|
|
``after`` parameter then this is set to ``True``. This avoids getting messages
|
|
out of order in the ``after`` case.
|
|
|
|
Raises
|
|
------
|
|
Forbidden
|
|
You do not have permissions to get channel message history.
|
|
HTTPException
|
|
The request to get message history failed.
|
|
|
|
Yields
|
|
-------
|
|
:class:`Message`
|
|
The message with the message data parsed.
|
|
|
|
Examples
|
|
---------
|
|
|
|
Usage ::
|
|
|
|
counter = 0
|
|
async for message in channel.history(limit=200):
|
|
if message.author == client.user:
|
|
counter += 1
|
|
|
|
Flattening into a list: ::
|
|
|
|
messages = await channel.history(limit=123).flatten()
|
|
# messages is now a list of Message...
|
|
|
|
Python 3.4 Usage ::
|
|
|
|
count = 0
|
|
iterator = channel.history(limit=200)
|
|
while True:
|
|
try:
|
|
message = yield from iterator.get()
|
|
except discord.NoMoreItems:
|
|
break
|
|
else:
|
|
if message.author == client.user:
|
|
counter += 1
|
|
"""
|
|
return HistoryIterator(self, limit=limit, before=before, after=after, around=around, reverse=reverse)
|
|
|
|
|
|
class Callable(metaclass=abc.ABCMeta):
|
|
__slots__ = ()
|
|
|
|
@abc.abstractmethod
|
|
def _get_voice_client_key(self):
|
|
raise NotImplementedError
|
|
|
|
@abc.abstractmethod
|
|
def _get_voice_state_pair(self):
|
|
raise NotImplementedError
|
|
|
|
@asyncio.coroutine
|
|
def connect(self, *, timeout=60.0, reconnect=True):
|
|
"""|coro|
|
|
|
|
Connects to voice and creates a :class:`VoiceClient` to establish
|
|
your connection to the voice server.
|
|
|
|
Parameters
|
|
-----------
|
|
timeout: float
|
|
The timeout in seconds to wait for the voice endpoint.
|
|
reconnect: bool
|
|
Whether the bot should automatically attempt
|
|
a reconnect if a part of the handshake fails
|
|
or the gateway goes down.
|
|
|
|
Raises
|
|
-------
|
|
asyncio.TimeoutError
|
|
Could not connect to the voice channel in time.
|
|
ClientException
|
|
You are already connected to a voice channel.
|
|
OpusNotLoaded
|
|
The opus library has not been loaded.
|
|
|
|
Returns
|
|
-------
|
|
:class:`VoiceClient`
|
|
A voice client that is fully connected to the voice server.
|
|
"""
|
|
key_id, key_name = self._get_voice_client_key()
|
|
state = self._state
|
|
|
|
if state._get_voice_client(key_id):
|
|
raise ClientException('Already connected to a voice channel.')
|
|
|
|
voice = VoiceClient(state=state, timeout=timeout, channel=self)
|
|
state._add_voice_client(key_id, voice)
|
|
|
|
try:
|
|
yield from voice.connect(reconnect=reconnect)
|
|
except asyncio.TimeoutError as e:
|
|
try:
|
|
yield from voice.disconnect()
|
|
except:
|
|
# we don't care if disconnect failed because connection failed
|
|
pass
|
|
raise e # re-raise
|
|
|
|
return voice
|
|
|