Files
kenaito-media-picker/internal/nsfw/server.py
T

77 lines
2.5 KiB
Python

# -*- coding: utf-8 -*-
"""NudeNet 本地检测服务:由 Go 侧启动,常驻提供 /health 和 /detect。
只依赖 Python 标准库 + nudenet 包,模型在进程里只加载一次。
收到 /detect 就把图片路径丢给 NudeDetector,返回结果 JSON。
"""
import json
import sys
from http.server import BaseHTTPRequestHandler, HTTPServer
from nudenet import NudeDetector
# 只有这些"暴露部位"才算色情;其它如肚子/腋窝/脚踝暴露不判。
SENSITIVE = {
"FEMALE_GENITALIA_EXPOSED",
"MALE_GENITALIA_EXPOSED",
"ANUS_EXPOSED",
"FEMALE_BREAST_EXPOSED",
}
_detector = None
def get_detector():
global _detector
if _detector is None:
_detector = NudeDetector()
return _detector
class Handler(BaseHTTPRequestHandler):
def _send(self, obj, status=200):
data = json.dumps(obj, ensure_ascii=False).encode("utf-8")
self.send_response(status)
self.send_header("Content-Type", "application/json; charset=utf-8")
self.send_header("Content-Length", str(len(data)))
self.end_headers()
self.wfile.write(data)
def do_GET(self):
if self.path == "/health":
self._send({"ok": True})
else:
self._send({"ok": False, "error": "not found"}, 404)
def do_POST(self):
if self.path != "/detect":
return self._send({"ok": False, "error": "not found"}, 404)
length = int(self.headers.get("Content-Length", 0))
try:
body = json.loads(self.rfile.read(length) or b"{}")
path = body.get("path", "")
threshold = float(body.get("threshold", 0.5))
detections = get_detector().detect(path)
except Exception as exc: # noqa: BLE001 - 服务端任何异常都要回给 Go,别让进程崩
return self._send({"ok": False, "error": str(exc)})
max_score = 0.0
nsfw = False
for det in detections or []:
cls = det.get("class", "")
sc = float(det.get("score", 0) or 0)
if cls in SENSITIVE:
if sc > max_score:
max_score = sc
if sc >= threshold:
nsfw = True
self._send({"ok": True, "nsfw": nsfw, "score": max_score, "detections": detections})
def log_message(self, *args): # 不刷屏
pass
if __name__ == "__main__":
port = int(sys.argv[1]) if len(sys.argv) > 1 else 0
HTTPServer(("127.0.0.1", port), Handler).serve_forever()