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29 lines
1.2 KiB
Python
29 lines
1.2 KiB
Python
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# Provenance: Ahkeratmehilaiset/waggledance-swarm (fixed).
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# repo: Ahkeratmehilaiset/waggledance-swarm
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# commit: 9a454843aa35332ff2eb3106023eee0c4b5e444b
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# parent: 934b939f1cca5259eaf807db3319eb97b90d8d80
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# commit_url: https://github.com/Ahkeratmehilaiset/waggledance-swarm/commit/9a454843aa35332ff2eb3106023eee0c4b5e444b
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# cve:
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# license: Apache-2.0
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# function: normalize_allowed_hosts
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# relpath: waggledance/core/v3_13_0/ssrf_host_guard.py
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# provenance: agent
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# mechanism: source_reaches_sink
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def normalize_allowed_hosts(raw_hosts: Iterable[str]) -> frozenset[str]:
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"""Validate and canonicalize an exact-host allowlist."""
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if (
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not isinstance(raw_hosts, Iterable)
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or isinstance(raw_hosts, (str, bytes, Mapping))
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):
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raise ValueError("ALLOWLIST_HOSTS_REFUSED")
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normalized: set[str] = set()
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for index, host in enumerate(raw_hosts):
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if not isinstance(host, str) or not host.strip():
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raise ValueError(f"ALLOWLIST_HOSTS_REFUSED_{index}")
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clean = normalize_host(host)
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if "://" in clean or "/" in clean or "?" in clean or "@" in clean:
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raise ValueError(f"ALLOWLIST_HOSTS_REFUSED_{index}")
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normalized.add(clean)
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return frozenset(normalized)
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