mirror of
https://github.com/nonebot/nonebot2.git
synced 2024-11-24 17:15:05 +08:00
67 lines
1.9 KiB
Python
67 lines
1.9 KiB
Python
import asyncio
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from typing import Dict, Any, Callable
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from aiocqhttp.message import MessageSegment
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from . import NoneBot
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from .command import handle_command, SwitchException
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from .log import logger
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from .natural_language import handle_natural_language
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_message_preprocessors = set()
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def message_preprocessor(func: Callable) -> Callable:
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_message_preprocessors.add(func)
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return func
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async def handle_message(bot: NoneBot, ctx: Dict[str, Any]) -> None:
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_log_message(ctx)
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coros = []
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for processor in _message_preprocessors:
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coros.append(processor(ctx))
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if coros:
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await asyncio.wait(coros)
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if ctx['message_type'] != 'private':
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# group or discuss
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ctx['to_me'] = False
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first_message_seg = ctx['message'][0]
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if first_message_seg == MessageSegment.at(ctx['self_id']):
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ctx['to_me'] = True
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del ctx['message'][0]
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if not ctx['message']:
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ctx['message'].append(MessageSegment.text(''))
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else:
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ctx['to_me'] = True
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while True:
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try:
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handled = await handle_command(bot, ctx)
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break
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except SwitchException as e:
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# we are sure that there is no session existing now
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ctx['message'] = e.new_ctx_message
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ctx['to_me'] = True
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if handled:
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logger.info(f'Message {ctx["message_id"]} is handled as a command')
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return
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handled = await handle_natural_language(bot, ctx)
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if handled:
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logger.info(f'Message {ctx["message_id"]} is handled '
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f'as natural language')
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return
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def _log_message(ctx: Dict[str, Any]) -> None:
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msg_from = f'{ctx["user_id"]}'
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if ctx['message_type'] == 'group':
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msg_from += f'@[群:{ctx["group_id"]}]'
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elif ctx['message_type'] == 'discuss':
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msg_from += f'@[讨论组:{ctx["discuss_id"]}]'
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logger.info(f'Message {ctx["message_id"]} from {msg_from}: '
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f'{ctx["message"]}')
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