cellpose-web/backend/flaskApp.py
ClovertaTheTrilobita 0349c190d4 feature(redis): 引入redis作为缓存机制
fix(cp_run): 修复存储时间戳
feature(preview): preview 施工中
2025-09-17 22:43:36 +03:00

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import asyncio
from concurrent.futures import ThreadPoolExecutor
from flask import Flask, send_from_directory, request, jsonify
import os, shutil, time, threading, datetime, json, redis
from werkzeug.utils import secure_filename
from flask_cors import CORS
from pathlib import Path
from cp_run import Cprun
app = Flask(__name__)
CORS(app)
BASE_DIR = Path(__file__).resolve().parent
UPLOAD_DIR = BASE_DIR / "uploads"
os.makedirs(UPLOAD_DIR, exist_ok=True)
executor = ThreadPoolExecutor(max_workers=4)
TASKS = {}
r = redis.Redis(host="127.0.0.1", port=6379, db=0)
# 启动测试服务器
def run_dev():
app.run(host="10.147.18.141", port=5000)
def set_status(task_id, status, **extra):
payload = {"status": status, "updated_at": datetime.datetime.utcnow().isoformat(), **extra}
r.set(f"task:{task_id}", json.dumps(payload), ex=86400) # 1 天过期
def get_status(task_id):
raw = r.get(f"task:{task_id}")
return json.loads(raw) if raw else None
@app.route("/")
def index():
return "<h1>Hello</h1><p>This is the backend of our cellpose server, please visit our website.</p>"
@app.get("/testdl")
def test_download():
return send_from_directory("test_output/2025-09-16-20-03-51", "img_overlay.png", as_attachment=True)
@app.get("/dl/<timestamp>")
def download(timestamp):
input_dir = os.path.join(BASE_DIR, "output", timestamp)
output_dir = os.path.join(BASE_DIR, "output/tmp", timestamp) # 不要加 .zipmake_archive 会自动加
os.makedirs(BASE_DIR / "output/tmp", exist_ok=True) # 确保 tmp 存在
shutil.make_archive(output_dir, 'zip', input_dir)
print(f"压缩完成: {output_dir}.zip")
return send_from_directory("output/tmp", f"{timestamp}.zip", as_attachment=True)
@app.post("/upload")
def upload():
"""
接收上传的文件并将其发送给cellpose。
:return:
"""
# 从请求中获取参数,若没有则设定为默认值
model = request.args.get("model") or request.form.get("model") or "cpsam"
def _to_float(x, default):
try:
return float(x)
except (TypeError, ValueError):
return default
flow_threshold = _to_float(request.args.get("flow_threshold") or request.form.get("flow_threshold"), 0.4)
cellprob_threshold = _to_float(request.args.get("cellprob_threshold") or request.form.get("cellprob_threshold"),
0.0)
diameter_raw = request.args.get("diameter") or request.form.get("diameter")
diameter = _to_float(diameter_raw, None) if diameter_raw not in (None, "") else None
# 将文件保存在本地目录中
ts = datetime.datetime.now().strftime("%Y-%m-%d-%H-%M-%S") + f"-{int(time.time()*1000)%1000:03d}"
os.makedirs(UPLOAD_DIR / ts, exist_ok=True)
files = request.files.getlist("files")
saved = []
for f in files:
if not f or f.filename == "":
continue
name = secure_filename(f.filename)
f.save(os.path.join(UPLOAD_DIR / ts, name))
saved.append(os.path.join(UPLOAD_DIR, ts, name))
# 新建一个线程,防止返回被阻塞
def job():
return asyncio.run(Cprun.run(
images=saved, model=model,
cellprob_threshold=cellprob_threshold,
flow_threshold=flow_threshold,
diameter=diameter, time=ts
))
# 将线程状态存入redis
set_status(ts, "running")
fut = executor.submit(job)
def done_cb(f):
try:
f.result()
set_status(ts, "success")
except Exception as e:
set_status(ts, "failed", error=str(e))
fut.add_done_callback(done_cb)
return jsonify({"ok": True, "count": len(saved), "id": ts})
@app.get("/status/")
def status():
"""
检查某一cellpose任务是否完成
:return:
"""
task_id = request.args.get('id')
st = get_status(task_id)
if not st:
return jsonify({"ok": True, "exists": False, "status": "not_found"}), 200
return jsonify({"ok": True, "exists": True, **st}), 200