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645 lines
22 KiB
Python
645 lines
22 KiB
Python
# -*- coding: utf-8 -*-
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"""
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The MIT License (MIT)
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Copyright (c) 2015-2020 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 asyncio
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import datetime
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from .errors import NoMoreItems
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from .utils import DISCORD_EPOCH, time_snowflake, maybe_coroutine
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from .object import Object
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from .audit_logs import AuditLogEntry
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OLDEST_OBJECT = Object(id=0)
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class _AsyncIterator:
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__slots__ = ()
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def get(self, **attrs):
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def predicate(elem):
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for attr, val in attrs.items():
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nested = attr.split('__')
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obj = elem
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for attribute in nested:
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obj = getattr(obj, attribute)
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if obj != val:
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return False
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return True
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return self.find(predicate)
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async def find(self, predicate):
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while True:
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try:
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elem = await self.next()
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except NoMoreItems:
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return None
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ret = await maybe_coroutine(predicate, elem)
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if ret:
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return elem
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def map(self, func):
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return _MappedAsyncIterator(self, func)
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def filter(self, predicate):
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return _FilteredAsyncIterator(self, predicate)
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async def flatten(self):
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ret = []
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while True:
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try:
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item = await self.next()
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except NoMoreItems:
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return ret
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else:
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ret.append(item)
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def __aiter__(self):
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return self
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async def __anext__(self):
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try:
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msg = await self.next()
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except NoMoreItems:
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raise StopAsyncIteration()
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else:
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return msg
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def _identity(x):
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return x
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class _MappedAsyncIterator(_AsyncIterator):
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def __init__(self, iterator, func):
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self.iterator = iterator
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self.func = func
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async def next(self):
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# this raises NoMoreItems and will propagate appropriately
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item = await self.iterator.next()
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return await maybe_coroutine(self.func, item)
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class _FilteredAsyncIterator(_AsyncIterator):
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def __init__(self, iterator, predicate):
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self.iterator = iterator
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if predicate is None:
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predicate = _identity
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self.predicate = predicate
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async def next(self):
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getter = self.iterator.next
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pred = self.predicate
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while True:
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# propagate NoMoreItems similar to _MappedAsyncIterator
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item = await getter()
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ret = await maybe_coroutine(pred, item)
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if ret:
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return item
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class ReactionIterator(_AsyncIterator):
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def __init__(self, message, emoji, limit=100, after=None):
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self.message = message
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self.limit = limit
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self.after = after
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state = message._state
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self.getter = state.http.get_reaction_users
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self.state = state
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self.emoji = emoji
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self.guild = message.guild
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self.channel_id = message.channel.id
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self.users = asyncio.Queue()
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async def next(self):
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if self.users.empty():
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await self.fill_users()
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try:
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return self.users.get_nowait()
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except asyncio.QueueEmpty:
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raise NoMoreItems()
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async def fill_users(self):
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# this is a hack because >circular imports<
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from .user import User
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if self.limit > 0:
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retrieve = self.limit if self.limit <= 100 else 100
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after = self.after.id if self.after else None
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data = await self.getter(self.channel_id, self.message.id, self.emoji, retrieve, after=after)
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if data:
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self.limit -= retrieve
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self.after = Object(id=int(data[-1]['id']))
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if self.guild is None:
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for element in reversed(data):
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await self.users.put(User(state=self.state, data=element))
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else:
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for element in reversed(data):
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member_id = int(element['id'])
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member = self.guild.get_member(member_id)
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if member is not None:
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await self.users.put(member)
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else:
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await self.users.put(User(state=self.state, data=element))
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class HistoryIterator(_AsyncIterator):
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"""Iterator for receiving a channel's message history.
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The messages endpoint has two behaviours we care about here:
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If `before` is specified, the messages endpoint returns the `limit`
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newest messages before `before`, sorted with newest first. For filling over
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100 messages, update the `before` parameter to the oldest message received.
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Messages will be returned in order by time.
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If `after` is specified, it returns the `limit` oldest messages after
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`after`, sorted with newest first. For filling over 100 messages, update the
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`after` parameter to the newest message received. If messages are not
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reversed, they will be out of order (99-0, 199-100, so on)
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A note that if both before and after are specified, before is ignored by the
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messages endpoint.
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Parameters
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-----------
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messageable: :class:`abc.Messageable`
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Messageable class to retrieve message history from.
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limit: :class:`int`
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Maximum number of messages to retrieve
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before: Optional[Union[:class:`abc.Snowflake`, :class:`datetime.datetime`]]
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Message before which all messages must be.
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after: Optional[Union[:class:`abc.Snowflake`, :class:`datetime.datetime`]]
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Message after which all messages must be.
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around: Optional[Union[:class:`abc.Snowflake`, :class:`datetime.datetime`]]
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Message around which all messages must be. Limit max 101. Note that if
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limit is an even number, this will return at most limit+1 messages.
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oldest_first: Optional[:class:`bool`]
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If set to ``True``, return messages in oldest->newest order. Defaults to
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True if ``after`` is specified, otherwise ``False``.
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"""
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def __init__(self, messageable, limit,
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before=None, after=None, around=None, oldest_first=None):
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if isinstance(before, datetime.datetime):
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before = Object(id=time_snowflake(before, high=False))
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if isinstance(after, datetime.datetime):
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after = Object(id=time_snowflake(after, high=True))
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if isinstance(around, datetime.datetime):
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around = Object(id=time_snowflake(around))
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if oldest_first is None:
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self.reverse = after is not None
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else:
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self.reverse = oldest_first
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self.messageable = messageable
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self.limit = limit
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self.before = before
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self.after = after or OLDEST_OBJECT
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self.around = around
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self._filter = None # message dict -> bool
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self.state = self.messageable._state
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self.logs_from = self.state.http.logs_from
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self.messages = asyncio.Queue()
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if self.around:
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if self.limit is None:
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raise ValueError('history does not support around with limit=None')
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if self.limit > 101:
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raise ValueError("history max limit 101 when specifying around parameter")
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elif self.limit == 101:
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self.limit = 100 # Thanks discord
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elif self.limit == 1:
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raise ValueError("Use fetch_message.")
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self._retrieve_messages = self._retrieve_messages_around_strategy
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if self.before and self.after:
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self._filter = lambda m: self.after.id < int(m['id']) < self.before.id
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elif self.before:
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self._filter = lambda m: int(m['id']) < self.before.id
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elif self.after:
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self._filter = lambda m: self.after.id < int(m['id'])
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else:
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if self.reverse:
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self._retrieve_messages = self._retrieve_messages_after_strategy
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if (self.before):
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self._filter = lambda m: int(m['id']) < self.before.id
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else:
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self._retrieve_messages = self._retrieve_messages_before_strategy
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if (self.after and self.after != OLDEST_OBJECT):
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self._filter = lambda m: int(m['id']) > self.after.id
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async def next(self):
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if self.messages.empty():
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await self.fill_messages()
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try:
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return self.messages.get_nowait()
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except asyncio.QueueEmpty:
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raise NoMoreItems()
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def _get_retrieve(self):
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l = self.limit
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if l is None:
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r = 100
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elif l <= 100:
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r = l
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else:
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r = 100
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self.retrieve = r
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return r > 0
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async def flatten(self):
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# this is similar to fill_messages except it uses a list instead
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# of a queue to place the messages in.
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result = []
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channel = await self.messageable._get_channel()
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self.channel = channel
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while self._get_retrieve():
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data = await self._retrieve_messages(self.retrieve)
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if len(data) < 100:
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self.limit = 0 # terminate the infinite loop
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if self.reverse:
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data = reversed(data)
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if self._filter:
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data = filter(self._filter, data)
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for element in data:
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result.append(self.state.create_message(channel=channel, data=element))
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return result
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async def fill_messages(self):
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if not hasattr(self, 'channel'):
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# do the required set up
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channel = await self.messageable._get_channel()
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self.channel = channel
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if self._get_retrieve():
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data = await self._retrieve_messages(self.retrieve)
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if len(data) < 100:
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self.limit = 0 # terminate the infinite loop
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if self.reverse:
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data = reversed(data)
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if self._filter:
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data = filter(self._filter, data)
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channel = self.channel
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for element in data:
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await self.messages.put(self.state.create_message(channel=channel, data=element))
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async def _retrieve_messages(self, retrieve):
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"""Retrieve messages and update next parameters."""
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pass
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async def _retrieve_messages_before_strategy(self, retrieve):
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"""Retrieve messages using before parameter."""
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before = self.before.id if self.before else None
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data = await self.logs_from(self.channel.id, retrieve, before=before)
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if len(data):
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if self.limit is not None:
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self.limit -= retrieve
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self.before = Object(id=int(data[-1]['id']))
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return data
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async def _retrieve_messages_after_strategy(self, retrieve):
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"""Retrieve messages using after parameter."""
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after = self.after.id if self.after else None
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data = await self.logs_from(self.channel.id, retrieve, after=after)
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if len(data):
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if self.limit is not None:
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self.limit -= retrieve
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self.after = Object(id=int(data[0]['id']))
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return data
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async def _retrieve_messages_around_strategy(self, retrieve):
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"""Retrieve messages using around parameter."""
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if self.around:
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around = self.around.id if self.around else None
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data = await self.logs_from(self.channel.id, retrieve, around=around)
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self.around = None
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return data
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return []
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class AuditLogIterator(_AsyncIterator):
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def __init__(self, guild, limit=None, before=None, after=None, oldest_first=None, user_id=None, action_type=None):
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if isinstance(before, datetime.datetime):
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before = Object(id=time_snowflake(before, high=False))
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if isinstance(after, datetime.datetime):
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after = Object(id=time_snowflake(after, high=True))
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if oldest_first is None:
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self.reverse = after is not None
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else:
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self.reverse = oldest_first
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self.guild = guild
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self.loop = guild._state.loop
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self.request = guild._state.http.get_audit_logs
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self.limit = limit
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self.before = before
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self.user_id = user_id
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self.action_type = action_type
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self.after = OLDEST_OBJECT
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self._users = {}
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self._state = guild._state
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self._filter = None # entry dict -> bool
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self.entries = asyncio.Queue()
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if self.reverse:
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self._strategy = self._after_strategy
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if self.before:
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self._filter = lambda m: int(m['id']) < self.before.id
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else:
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self._strategy = self._before_strategy
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if self.after and self.after != OLDEST_OBJECT:
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self._filter = lambda m: int(m['id']) > self.after.id
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async def _before_strategy(self, retrieve):
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before = self.before.id if self.before else None
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data = await self.request(self.guild.id, limit=retrieve, user_id=self.user_id,
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action_type=self.action_type, before=before)
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entries = data.get('audit_log_entries', [])
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if len(data) and entries:
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if self.limit is not None:
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self.limit -= retrieve
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self.before = Object(id=int(entries[-1]['id']))
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return data.get('users', []), entries
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async def _after_strategy(self, retrieve):
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after = self.after.id if self.after else None
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data = await self.request(self.guild.id, limit=retrieve, user_id=self.user_id,
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action_type=self.action_type, after=after)
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entries = data.get('audit_log_entries', [])
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if len(data) and entries:
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if self.limit is not None:
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self.limit -= retrieve
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self.after = Object(id=int(entries[0]['id']))
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return data.get('users', []), entries
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async def next(self):
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if self.entries.empty():
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await self._fill()
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try:
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return self.entries.get_nowait()
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except asyncio.QueueEmpty:
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raise NoMoreItems()
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def _get_retrieve(self):
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l = self.limit
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if l is None:
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r = 100
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elif l <= 100:
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r = l
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else:
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r = 100
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self.retrieve = r
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return r > 0
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async def _fill(self):
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from .user import User
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if self._get_retrieve():
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users, data = await self._strategy(self.retrieve)
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if len(data) < 100:
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self.limit = 0 # terminate the infinite loop
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if self.reverse:
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data = reversed(data)
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if self._filter:
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data = filter(self._filter, data)
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for user in users:
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u = User(data=user, state=self._state)
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self._users[u.id] = u
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for element in data:
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# TODO: remove this if statement later
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if element['action_type'] is None:
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continue
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await self.entries.put(AuditLogEntry(data=element, users=self._users, guild=self.guild))
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class GuildIterator(_AsyncIterator):
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"""Iterator for receiving the client's guilds.
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The guilds endpoint has the same two behaviours as described
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in :class:`HistoryIterator`:
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If `before` is specified, the guilds endpoint returns the `limit`
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newest guilds before `before`, sorted with newest first. For filling over
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100 guilds, update the `before` parameter to the oldest guild received.
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Guilds will be returned in order by time.
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If `after` is specified, it returns the `limit` oldest guilds after `after`,
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sorted with newest first. For filling over 100 guilds, update the `after`
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parameter to the newest guild received, If guilds are not reversed, they
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will be out of order (99-0, 199-100, so on)
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|
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Not that if both before and after are specified, before is ignored by the
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guilds endpoint.
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Parameters
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-----------
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bot: :class:`discord.Client`
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The client to retrieve the guilds from.
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limit: :class:`int`
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Maximum number of guilds to retrieve.
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before: Optional[Union[:class:`abc.Snowflake`, :class:`datetime.datetime`]]
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Object before which all guilds must be.
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after: Optional[Union[:class:`abc.Snowflake`, :class:`datetime.datetime`]]
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Object after which all guilds must be.
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"""
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def __init__(self, bot, limit, before=None, after=None):
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if isinstance(before, datetime.datetime):
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before = Object(id=time_snowflake(before, high=False))
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if isinstance(after, datetime.datetime):
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after = Object(id=time_snowflake(after, high=True))
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self.bot = bot
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self.limit = limit
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self.before = before
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self.after = after
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self._filter = None
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self.state = self.bot._connection
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self.get_guilds = self.bot.http.get_guilds
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self.guilds = asyncio.Queue()
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if self.before and self.after:
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self._retrieve_guilds = self._retrieve_guilds_before_strategy
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self._filter = lambda m: int(m['id']) > self.after.id
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elif self.after:
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self._retrieve_guilds = self._retrieve_guilds_after_strategy
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else:
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self._retrieve_guilds = self._retrieve_guilds_before_strategy
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async def next(self):
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if self.guilds.empty():
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await self.fill_guilds()
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try:
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return self.guilds.get_nowait()
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except asyncio.QueueEmpty:
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raise NoMoreItems()
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def _get_retrieve(self):
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l = self.limit
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if l is None:
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r = 100
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elif l <= 100:
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r = l
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else:
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r = 100
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self.retrieve = r
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return r > 0
|
|
|
|
def create_guild(self, data):
|
|
from .guild import Guild
|
|
return Guild(state=self.state, data=data)
|
|
|
|
async def flatten(self):
|
|
result = []
|
|
while self._get_retrieve():
|
|
data = await self._retrieve_guilds(self.retrieve)
|
|
if len(data) < 100:
|
|
self.limit = 0
|
|
|
|
if self._filter:
|
|
data = filter(self._filter, data)
|
|
|
|
for element in data:
|
|
result.append(self.create_guild(element))
|
|
return result
|
|
|
|
async def fill_guilds(self):
|
|
if self._get_retrieve():
|
|
data = await self._retrieve_guilds(self.retrieve)
|
|
if self.limit is None or len(data) < 100:
|
|
self.limit = 0
|
|
|
|
if self._filter:
|
|
data = filter(self._filter, data)
|
|
|
|
for element in data:
|
|
await self.guilds.put(self.create_guild(element))
|
|
|
|
async def _retrieve_guilds(self, retrieve):
|
|
"""Retrieve guilds and update next parameters."""
|
|
pass
|
|
|
|
async def _retrieve_guilds_before_strategy(self, retrieve):
|
|
"""Retrieve guilds using before parameter."""
|
|
before = self.before.id if self.before else None
|
|
data = await self.get_guilds(retrieve, before=before)
|
|
if len(data):
|
|
if self.limit is not None:
|
|
self.limit -= retrieve
|
|
self.before = Object(id=int(data[-1]['id']))
|
|
return data
|
|
|
|
async def _retrieve_guilds_after_strategy(self, retrieve):
|
|
"""Retrieve guilds using after parameter."""
|
|
after = self.after.id if self.after else None
|
|
data = await self.get_guilds(retrieve, after=after)
|
|
if len(data):
|
|
if self.limit is not None:
|
|
self.limit -= retrieve
|
|
self.after = Object(id=int(data[0]['id']))
|
|
return data
|
|
|
|
class MemberIterator(_AsyncIterator):
|
|
def __init__(self, guild, limit=1000, after=None):
|
|
|
|
if isinstance(after, datetime.datetime):
|
|
after = Object(id=time_snowflake(after, high=True))
|
|
|
|
self.guild = guild
|
|
self.limit = limit
|
|
self.after = after or OLDEST_OBJECT
|
|
|
|
self.state = self.guild._state
|
|
self.get_members = self.state.http.get_members
|
|
self.members = asyncio.Queue()
|
|
|
|
async def next(self):
|
|
if self.members.empty():
|
|
await self.fill_members()
|
|
|
|
try:
|
|
return self.members.get_nowait()
|
|
except asyncio.QueueEmpty:
|
|
raise NoMoreItems()
|
|
|
|
def _get_retrieve(self):
|
|
l = self.limit
|
|
if l is None:
|
|
r = 1000
|
|
elif l <= 1000:
|
|
r = l
|
|
else:
|
|
r = 1000
|
|
|
|
self.retrieve = r
|
|
return r > 0
|
|
|
|
async def fill_members(self):
|
|
if self._get_retrieve():
|
|
after = self.after.id if self.after else None
|
|
data = await self.get_members(self.guild.id, self.retrieve, after)
|
|
if not data:
|
|
# no data, terminate
|
|
return
|
|
|
|
if len(data) < 1000:
|
|
self.limit = 0 # terminate loop
|
|
|
|
self.after = Object(id=int(data[-1]['user']['id']))
|
|
|
|
for element in reversed(data):
|
|
await self.members.put(self.create_member(element))
|
|
|
|
def create_member(self, data):
|
|
from .member import Member
|
|
return Member(data=data, guild=self.guild, state=self.state)
|