egutierrez
cce7764510
Extractores nuevos en python/functions/cybersecurity/: - extract_ip_addresses (IPv4 + IPv6 con validacion ipaddress) - extract_emails (RFC 5322 simplificado) - extract_domains (FQDNs con TLD valido, lista estatica) - extract_file_hashes (MD5/SHA1/SHA256/SHA512, algoritmo por longitud) - extract_crypto_wallets (BTC legacy + bech32, ETH 0x+40hex) - extract_cve_ids (CVE-YYYY-NNNN+) - extract_mac_addresses (xx:xx:xx + xx-xx-xx, separador uniforme) - extract_phone_numbers (E.164 + ES local 9 digitos) Pipeline: - extract_iocs corre todos, deduplica spans contenidos. Mantiene purity:pure (kind:function con uses_functions no vacio) porque la regla del registry exige que los pipelines sean impuros. Todas devuelven list[dict] con value/start/end/type para que el caller (issues 0038-0040) pueda reconciliar offsets con spans NER sin reparsing. Refs #0037 Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
45 lines
1.1 KiB
Python
45 lines
1.1 KiB
Python
"""Extrae wallets BTC y ETH de un texto, con offsets."""
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import re
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_BTC_LEGACY = re.compile(
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r"(?<![A-Za-z0-9])"
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r"[13][1-9A-HJ-NP-Za-km-z]{25,34}"
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r"(?![A-Za-z0-9])"
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)
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_BTC_BECH32 = re.compile(
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r"(?<![A-Za-z0-9])"
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r"bc1[02-9ac-hj-np-z]{6,87}"
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r"(?![A-Za-z0-9])"
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)
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_ETH_REGEX = re.compile(
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r"(?<![A-Za-z0-9])"
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r"0x[a-fA-F0-9]{40}"
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r"(?![A-Za-z0-9])"
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)
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def extract_crypto_wallets(text: str) -> list[dict]:
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"""Extrae direcciones BTC (legacy + bech32) y ETH con offsets.
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BTC legacy (P2PKH/P2SH) empieza por `1` o `3`. BTC bech32 (segwit)
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empieza por `bc1`. ETH es `0x` seguido de 40 caracteres hex. No se
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valida checksum — la regex es estructural.
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"""
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results = []
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for regex, asset in (
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(_BTC_LEGACY, "btc"),
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(_BTC_BECH32, "btc"),
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(_ETH_REGEX, "eth"),
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):
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for m in regex.finditer(text):
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results.append({
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"value": m.group(0),
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"start": m.start(),
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"end": m.end(),
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"type": "crypto_wallet",
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"asset": asset,
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})
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results.sort(key=lambda r: r["start"])
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return results
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