51 lines
1.9 KiB
Python
51 lines
1.9 KiB
Python
"""Скор записи: вес провайдера + вовлечённость + свежесть + ценник + объём текста + сигнал абуза."""
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import re
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import time
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from .dates import parse_published
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WEIGHT = {"reddit": 1.15, "x": 1.10, "forums": 1.0, "tavily": 1.0, "exa": 1.0,
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"firecrawl": 0.9, "you": 0.9, "ddg": 0.75, "cards": 0.35, "treg": 0.8}
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ABUSE_TERMS = re.compile(
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r"(cve-\d{4}-\d+|0day|0-day|zero[- ]day|exploit|rce|sqli|xss|ssrf|rce|"
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r"leak|leaked|dump|breach|combo[- ]?list|stealer|ransomware|botnet|credentials|"
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r"password[s]?|api[- ]?key[s]?|token[s]?|аккаунт\w*|база|слив\w*|утечк\w*|комбо|"
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r"взлом|эксплойт|уязвим\w*|парол\w*|ключи)",
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re.I)
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def _abuse(it):
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"""Реальные абузы должны всплывать выше новостей: считаем сигнальные термины."""
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blob = f"{it.title} {it.text}"[:2000]
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hits = len({m.group(0).lower() for m in ABUSE_TERMS.finditer(blob)})
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return min(4, hits)
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KIND_BONUS = {"tweet": 0.15, "thread": 0.25, "tg_post": 0.2, "card": 0.05, "result": 0.1, "post": 0.1}
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def _fresh(published):
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"""Unix seconds/milliseconds, ISO or RFC 2822. Return freshness in 0..1."""
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dt = parse_published(published)
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if dt is None:
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return 0.3
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days = max(0.0, (time.time() - dt.timestamp()) / 86400)
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return max(0.0, 1.0 - days / 30.0)
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def score(it):
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base = it.score if it.score else 0.0
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w = WEIGHT.get(it.provider, 0.7)
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fresh = _fresh(it.published)
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priced = 0.35 if it.price else 0.0
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body = min(1.0, len(it.text) / 1200.0)
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eng = min(3.0, base ** 0.5) if base > 1 else base
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total = (w * (1.0 + eng) + fresh * 1.2 + priced + body + KIND_BONUS.get(it.kind, 0.0)
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+ 0.45 * _abuse(it))
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it.score = round(total, 4)
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return it
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def rank(items):
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return sorted((score(i) for i in items), key=lambda x: -x.score) |