754 lines
26 KiB
Python
754 lines
26 KiB
Python
"""
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The MIT License (MIT)
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Copyright (c) 2015-present 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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from __future__ import annotations
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import asyncio
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import datetime
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from typing import Awaitable, TYPE_CHECKING, TypeVar, Optional, Any, Callable, Union, List, AsyncIterator
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from .errors import NoMoreItems
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from .utils import snowflake_time, 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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__all__ = (
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'ReactionIterator',
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'HistoryIterator',
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'AuditLogIterator',
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'GuildIterator',
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'MemberIterator',
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)
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if TYPE_CHECKING:
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from .types.audit_log import (
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AuditLog as AuditLogPayload,
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)
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from .types.guild import (
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Guild as GuildPayload,
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)
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from .types.message import (
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Message as MessagePayload,
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)
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from .types.user import (
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PartialUser as PartialUserPayload,
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)
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from .types.threads import (
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Thread as ThreadPayload,
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)
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from .member import Member
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from .user import User
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from .message import Message
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from .audit_logs import AuditLogEntry
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from .guild import Guild
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from .threads import Thread
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from .abc import Snowflake
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T = TypeVar('T')
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OT = TypeVar('OT')
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_Func = Callable[[T], Union[OT, Awaitable[OT]]]
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OLDEST_OBJECT = Object(id=0)
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class _AsyncIterator(AsyncIterator[T]):
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__slots__ = ()
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async def next(self) -> T:
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raise NotImplementedError
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def get(self, **attrs: Any) -> Awaitable[Optional[T]]:
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def predicate(elem: T):
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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: _Func[T, bool]) -> Optional[T]:
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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 chunk(self, max_size: int) -> _ChunkedAsyncIterator[T]:
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if max_size <= 0:
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raise ValueError('async iterator chunk sizes must be greater than 0.')
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return _ChunkedAsyncIterator(self, max_size)
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def map(self, func: _Func[T, OT]) -> _MappedAsyncIterator[OT]:
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return _MappedAsyncIterator(self, func)
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def filter(self, predicate: _Func[T, bool]) -> _FilteredAsyncIterator[T]:
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return _FilteredAsyncIterator(self, predicate)
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async def flatten(self) -> List[T]:
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return [element async for element in self]
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async def __anext__(self) -> T:
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try:
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return await self.next()
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except NoMoreItems:
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raise StopAsyncIteration()
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def _identity(x):
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return x
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class _ChunkedAsyncIterator(_AsyncIterator[List[T]]):
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def __init__(self, iterator, max_size):
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self.iterator = iterator
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self.max_size = max_size
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async def next(self) -> List[T]:
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ret: List[T] = []
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n = 0
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while n < self.max_size:
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try:
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item = await self.iterator.next()
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except NoMoreItems:
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if ret:
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return ret
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raise
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else:
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ret.append(item)
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n += 1
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return ret
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class _MappedAsyncIterator(_AsyncIterator[T]):
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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) -> T:
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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[T]):
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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) -> T:
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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[Union['User', 'Member']]):
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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) -> Union[User, Member]:
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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: List[PartialUserPayload] = await self.getter(
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self.channel_id, self.message.id, self.emoji, retrieve, after=after
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)
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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 or isinstance(self.guild, Object):
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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['Message']):
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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, 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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self._retrieve_messages = self._retrieve_messages_around_strategy # type: ignore
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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 # type: ignore
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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 # type: ignore
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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) -> Message:
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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 or l > 100:
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r = 100
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else:
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r = l
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self.retrieve = r
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return r > 0
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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) -> List[Message]:
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"""Retrieve messages and update next parameters."""
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raise NotImplementedError
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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: List[MessagePayload] = 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: List[MessagePayload] = 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: List[MessagePayload] = 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['AuditLogEntry']):
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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: AuditLogPayload = await self.request(
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self.guild.id, limit=retrieve, user_id=self.user_id, action_type=self.action_type, before=before
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)
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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: AuditLogPayload = await self.request(
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self.guild.id, limit=retrieve, user_id=self.user_id, action_type=self.action_type, after=after
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)
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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) -> AuditLogEntry:
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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 or l > 100:
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r = 100
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else:
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r = l
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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['Guild']):
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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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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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|
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if isinstance(before, datetime.datetime):
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before = Object(id=time_snowflake(before, high=False))
|
|
if isinstance(after, datetime.datetime):
|
|
after = Object(id=time_snowflake(after, high=True))
|
|
|
|
self.bot = bot
|
|
self.limit = limit
|
|
self.before = before
|
|
self.after = after
|
|
|
|
self._filter = None
|
|
|
|
self.state = self.bot._connection
|
|
self.get_guilds = self.bot.http.get_guilds
|
|
self.guilds = asyncio.Queue()
|
|
|
|
if self.before and self.after:
|
|
self._retrieve_guilds = self._retrieve_guilds_before_strategy # type: ignore
|
|
self._filter = lambda m: int(m['id']) > self.after.id
|
|
elif self.after:
|
|
self._retrieve_guilds = self._retrieve_guilds_after_strategy # type: ignore
|
|
else:
|
|
self._retrieve_guilds = self._retrieve_guilds_before_strategy # type: ignore
|
|
|
|
async def next(self) -> Guild:
|
|
if self.guilds.empty():
|
|
await self.fill_guilds()
|
|
|
|
try:
|
|
return self.guilds.get_nowait()
|
|
except asyncio.QueueEmpty:
|
|
raise NoMoreItems()
|
|
|
|
def _get_retrieve(self):
|
|
l = self.limit
|
|
if l is None or l > 100:
|
|
r = 100
|
|
else:
|
|
r = l
|
|
self.retrieve = r
|
|
return r > 0
|
|
|
|
def create_guild(self, data):
|
|
from .guild import Guild
|
|
|
|
return Guild(state=self.state, data=data)
|
|
|
|
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) -> List[Guild]:
|
|
"""Retrieve guilds and update next parameters."""
|
|
raise NotImplementedError
|
|
|
|
async def _retrieve_guilds_before_strategy(self, retrieve):
|
|
"""Retrieve guilds using before parameter."""
|
|
before = self.before.id if self.before else None
|
|
data: List[GuildPayload] = 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: List[GuildPayload] = 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['Member']):
|
|
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) -> Member:
|
|
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 or l > 1000:
|
|
r = 1000
|
|
else:
|
|
r = l
|
|
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)
|
|
|
|
|
|
class ArchivedThreadIterator(_AsyncIterator['Thread']):
|
|
def __init__(
|
|
self,
|
|
channel_id: int,
|
|
guild: Guild,
|
|
limit: Optional[int],
|
|
joined: bool,
|
|
private: bool,
|
|
before: Optional[Union[Snowflake, datetime.datetime]] = None,
|
|
):
|
|
self.channel_id = channel_id
|
|
self.guild = guild
|
|
self.limit = limit
|
|
self.joined = joined
|
|
self.private = private
|
|
self.http = guild._state.http
|
|
|
|
if joined and not private:
|
|
raise ValueError('Cannot iterate over joined public archived threads')
|
|
|
|
self.before: Optional[str]
|
|
if before is None:
|
|
self.before = None
|
|
elif isinstance(before, datetime.datetime):
|
|
if joined:
|
|
self.before = str(time_snowflake(before, high=False))
|
|
else:
|
|
self.before = before.isoformat()
|
|
else:
|
|
if joined:
|
|
self.before = str(before.id)
|
|
else:
|
|
self.before = snowflake_time(before.id).isoformat()
|
|
|
|
self.update_before: Callable[[ThreadPayload], str] = self.get_archive_timestamp
|
|
|
|
if joined:
|
|
self.endpoint = self.http.get_joined_private_archived_threads
|
|
self.update_before = self.get_thread_id
|
|
elif private:
|
|
self.endpoint = self.http.get_private_archived_threads
|
|
else:
|
|
self.endpoint = self.http.get_public_archived_threads
|
|
|
|
self.queue: asyncio.Queue[Thread] = asyncio.Queue()
|
|
self.has_more: bool = True
|
|
|
|
async def next(self) -> Thread:
|
|
if self.queue.empty():
|
|
await self.fill_queue()
|
|
|
|
try:
|
|
return self.queue.get_nowait()
|
|
except asyncio.QueueEmpty:
|
|
raise NoMoreItems()
|
|
|
|
@staticmethod
|
|
def get_archive_timestamp(data: ThreadPayload) -> str:
|
|
return data['thread_metadata']['archive_timestamp']
|
|
|
|
@staticmethod
|
|
def get_thread_id(data: ThreadPayload) -> str:
|
|
return data['id'] # type: ignore
|
|
|
|
async def fill_queue(self) -> None:
|
|
if not self.has_more:
|
|
raise NoMoreItems()
|
|
|
|
limit = 50 if self.limit is None else max(self.limit, 50)
|
|
data = await self.endpoint(self.channel_id, before=self.before, limit=limit)
|
|
|
|
# This stuff is obviously WIP because 'members' is always empty
|
|
threads: List[ThreadPayload] = data.get('threads', [])
|
|
for d in reversed(threads):
|
|
self.queue.put_nowait(self.create_thread(d))
|
|
|
|
self.has_more = data.get('has_more', False)
|
|
if self.limit is not None:
|
|
self.limit -= len(threads)
|
|
if self.limit <= 0:
|
|
self.has_more = False
|
|
|
|
if self.has_more:
|
|
self.before = self.update_before(threads[-1])
|
|
|
|
def create_thread(self, data: ThreadPayload) -> Thread:
|
|
from .threads import Thread
|
|
return Thread(guild=self.guild, state=self.guild._state, data=data)
|