mirror of
https://github.com/nonebot/nonebot2.git
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87 lines
2.8 KiB
Python
87 lines
2.8 KiB
Python
import hashlib
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import random
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from typing import Sequence, Callable, Any
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from . import NoneBot
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from .exceptions import CQHttpError
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from .message import escape
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from .typing import Context_T, Message_T, Expression_T
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def context_id(ctx: Context_T, *,
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mode: str = 'default', use_hash: bool = False) -> str:
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"""
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Calculate a unique id representing the current context.
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mode:
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default: one id for one context
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group: one id for one group or discuss
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user: one id for one user
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:param ctx: the context dict
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:param mode: unique id mode: "default", "group", or "user"
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:param use_hash: use md5 to hash the id or not
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"""
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ctx_id = ''
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if mode == 'default':
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if ctx.get('group_id'):
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ctx_id = f'/group/{ctx["group_id"]}'
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elif ctx.get('discuss_id'):
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ctx_id = f'/discuss/{ctx["discuss_id"]}'
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if ctx.get('user_id'):
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ctx_id += f'/user/{ctx["user_id"]}'
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elif mode == 'group':
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if ctx.get('group_id'):
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ctx_id = f'/group/{ctx["group_id"]}'
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elif ctx.get('discuss_id'):
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ctx_id = f'/discuss/{ctx["discuss_id"]}'
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elif ctx.get('user_id'):
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ctx_id = f'/user/{ctx["user_id"]}'
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elif mode == 'user':
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if ctx.get('user_id'):
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ctx_id = f'/user/{ctx["user_id"]}'
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if ctx_id and use_hash:
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ctx_id = hashlib.md5(ctx_id.encode('ascii')).hexdigest()
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return ctx_id
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async def send(bot: NoneBot, ctx: Context_T,
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message: Message_T, *,
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ensure_private: bool = False,
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ignore_failure: bool = True,
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**kwargs) -> Any:
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"""Send a message ignoring failure by default."""
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try:
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if ensure_private:
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ctx = ctx.copy()
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ctx['message_type'] = 'private'
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return await bot.send(ctx, message, **kwargs)
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except CQHttpError:
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if not ignore_failure:
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raise
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return None
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def render_expression(expr: Expression_T, *args,
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escape_args: bool = True, **kwargs) -> str:
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"""
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Render an expression to message string.
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:param expr: expression to render
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:param escape_args: should escape arguments or not
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:param args: positional arguments used in str.format()
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:param kwargs: keyword arguments used in str.format()
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:return: the rendered message
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"""
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if isinstance(expr, Callable):
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expr = expr(*args, **kwargs)
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elif isinstance(expr, Sequence) and not isinstance(expr, str):
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expr = random.choice(expr)
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if escape_args:
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return expr.format(
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*[escape(s) if isinstance(s, str) else s for s in args],
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**{k: escape(v) if isinstance(v, str) else v for k, v in kwargs.items()}
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)
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return expr.format(*args, **kwargs)
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