12 lines
294 B
Python
12 lines
294 B
Python
import re
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_SAFE_RE = re.compile(r"^[A-Za-z0-9:._~-]+$")
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def assert_safe(value: str, *, field: str = "value") -> None:
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if not isinstance(value, str) or not value or not _SAFE_RE.match(value):
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raise ValueError(f"{field} must match ^[A-Za-z0-9:._~-]+$")
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__all__ = ["assert_safe"]
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