33 lines
952 B
Python
33 lines
952 B
Python
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import re
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def normalize_irc_target(target: str) -> str:
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target = target.strip()
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target = re.sub(r"^irc:", "", target)
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target = re.sub(r"^(channel|user):", "", target)
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if not re.match(r"^[^\s:@!]+$", target) and not target.startswith(("#", "&")):
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target = target.split("!")[0]
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return target
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def is_channel_target(target: str) -> bool:
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return target.startswith("#") or target.startswith("&")
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def build_irc_allowlist_candidates(
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nick: str,
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user: str | None,
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host: str | None,
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allow_name_matching: bool = False,
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) -> list[str]:
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candidates = []
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nick_lower = nick.lower()
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if user and host:
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candidates.append(f"{nick_lower}!{user.lower()}@{host.lower()}")
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if user:
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candidates.append(f"{nick_lower}!{user.lower()}")
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if host:
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candidates.append(f"{nick_lower}@{host.lower()}")
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if allow_name_matching:
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candidates.append(nick_lower)
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return candidates
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