YANG JIANKUAN
85b5113ba4
- server.py：三条恒定 URL 并行——/e1002.png 内存现渲染 PNG（主力）、 /e1002.html 现代网页、/e1002-web.png 网页经无头 Chrome 截图后固化六色； 天气/橘喵/BTC 按 WEATHER_TTL/MAO_TTL/BTC_TTL 走内存缓存，过期才实拉、 失败沿用旧值；用量不读本机文件，改由 POST /push/usage(_gpt) 推送暂存 - push_client.py：本机把 Claude 用量快照推送到服务（X-Push-Token 鉴权） - btc_api.py：OKX/Coinbase/Huobi 免费接口逐源兜底，时K 近 72 小时，涨绿跌红 - data.py 拆出 weather_fetch/mao_fetch/btc_fetch 与 usage_from_raw， 统一按 TZ_NAME 时区；宽版只用点阵字体整数倍字号 12/24/36/48 - probe_server.py：验证平台对同一 URL 是否周期重抓（结论：Image 控件 不重抓，HTML 控件重抓） Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
279 lines
14 KiB
Python
279 lines
14 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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"""
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图片/网页服务 —— 给 SenseCraft HMI 的 HTML 控件周期抓取的**恒定 URL**，每次请求都**现取数据、现渲染**，全程内存、不落盘。
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真机验证结论（2026-09）：SenseCraft 的 Image 控件只在填写 URL 时抓一次快照、此后不再更新；
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HTML 控件填同一个 URL 则**每个刷新周期都重抓**。所以对外只暴露 HTML 控件用的 URL，两种形态并行供对比：
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方案一 GET <IMAGE_PATH>（默认 /e1002.png）→ image/png：与 main.py --target e1002 同一套 Pillow 点阵渲染（renderer_e1002）
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方案二 GET <HTML_PATH> （默认 /e1002.html）→ text/html：800x480 的现代网页（html_renderer，系统/网络字体 + 内联 SVG K 线），
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由平台无头浏览器截图后量化（真机实拍：文字抗锯齿灰边被平台抖动成毛边、小字糊）
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方案三 GET <HTML_PNG_PATH>（默认 /e1002-web.png）→ image/png：同一网页由**服务端**无头 Chrome 截图，再按最近色（不抖动）
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固化为六色 PNG（html_shot），平台拿到的已是纯色图；加 ?raw=1 返回未量化的原始截图供对照。需服务器装 Chrome。
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两者共用同一份 build_data()：
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- 日期时间：服务器按 config.TZ_NAME 时区现算
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- 天气 / 橘喵今日实时 / BTC K 线：**内存缓存 + 有效期**（WEATHER_TTL / MAO_TTL / BTC_TTL，.env 可配，0=每次实拉）：
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收到请求先查该路缓存是否过期，过期才实拉并更新时间戳，否则直接用缓存渲染；拉取失败沿用旧值、不更新时间戳（下次再试），
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从未成功则占位 "--"。整个服务**不读本机任何文件**（部署在公网服务器）。
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- Claude Usage / ChatGPT Usage：**不主动拉取**，由本机 `main.py --target push` 推送原始快照到 POST /push/usage、/push/usage_gpt，
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服务端暂存最新一份（内存；PUSH_STATE_PATH 非空时同时落盘，重启恢复）；渲染时按当前时刻现算 pace，
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所以推送时机与设备抓取时机不必对齐。未推送过：Claude 显示 "--"，ChatGPT 用 mock 并标「示例数据」。
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- 推送鉴权：请求头 X-Push-Token 必须等于 PUSH_TOKEN；PUSH_TOKEN 为空时拒绝一切推送（服务在公网，务必配置）。
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其他端点：GET /health → JSON 运行状态；GET /push/usage、/push/usage_gpt → 查看暂存的原始快照（需同样令牌）。
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部署：python3 server.py（监听 SERVER_HOST:SERVER_PORT），前置 Caddy/Nginx 做 HTTPS，或 cloudflared tunnel。
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"""
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import io
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import json
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import os
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import threading
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import time
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from http.server import BaseHTTPRequestHandler, ThreadingHTTPServer
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import config
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import data
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from renderer_e1002 import E1002Renderer
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import html_renderer
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import html_shot
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class State:
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"""服务端内存状态：推送来的原始用量快照 + 上游数据的「上一次成功值」+ 计数。"""
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def __init__(self):
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self.lock = threading.Lock()
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self.raw = {"usage": None, "usage_gpt": None}
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self.pushed_at = {"usage": None, "usage_gpt": None}
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self.last_good = {"weather": None, "mao": None, "btc": None} # 各路最近一次成功的数据
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self.fetched_at = {"weather": 0.0, "mao": 0.0, "btc": 0.0} # 各路最近一次成功拉取的时间戳（缓存有效期起点）
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self.renders = {"png": 0, "html": 0}
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self.last_render = None
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self.started = time.time()
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self._load()
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# ---- 推送数据持久化（可选）----
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def _load(self):
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p = config.PUSH_STATE_PATH
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if not p or not os.path.exists(p):
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return
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try:
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with open(p, encoding="utf-8") as f:
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st = json.load(f)
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self.raw.update(st.get("raw") or {})
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self.pushed_at.update(st.get("pushed_at") or {})
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print(f"[状态] 已从 {p} 恢复推送数据")
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except Exception as e:
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print(f"[警告] 推送状态恢复失败：{e}")
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def _save(self):
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p = config.PUSH_STATE_PATH
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if not p:
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return
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try:
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tmp = p + ".tmp"
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with open(tmp, "w", encoding="utf-8") as f:
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json.dump({"raw": self.raw, "pushed_at": self.pushed_at}, f, ensure_ascii=False)
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os.replace(tmp, p)
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except Exception as e:
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print(f"[警告] 推送状态落盘失败：{e}")
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def push(self, kind, raw):
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with self.lock:
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self.raw[kind] = raw
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self.pushed_at[kind] = time.time()
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self._save()
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STATE = State()
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_RENDER_LOCK = threading.Lock() # Pillow 渲染器持有 self.img/self.d，非线程安全
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_PNG_RENDERER = E1002Renderer()
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def _cached(key, ttl, fetch, fallback):
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"""带有效期的内存缓存：未过期 → 直接返回缓存；过期 → 实拉，成功则更新数据与时间戳，失败沿用旧值（无旧值用 fallback）。
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fetch() 返回 (data, ok)。返回 (data, 状态字串) 供日志。"""
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now = time.time()
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with STATE.lock:
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cached, ts = STATE.last_good[key], STATE.fetched_at[key]
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if cached is not None and ttl > 0 and now - ts < ttl:
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return cached, f"{key}:cache({int(now - ts)}s)"
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try:
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d, ok = fetch()
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except Exception as e: # noqa: BLE001 —— 上游任何异常都按失败处理
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print(f"[警告] {key} 拉取异常：{e}")
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d, ok = None, False
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if ok:
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with STATE.lock:
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STATE.last_good[key], STATE.fetched_at[key] = d, now
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return d, f"{key}:fetched"
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if cached is not None:
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return cached, f"{key}:stale"
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return fallback, f"{key}:none"
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def build_data(now=None):
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"""组装渲染数据：三路上游按各自 TTL 走内存缓存，用量取推送暂存。返回 (data, 各路状态列表)。"""
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now = now or data.now_tz()
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with STATE.lock:
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raw_usage, raw_gpt = STATE.raw["usage"], STATE.raw["usage_gpt"]
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weather, s1 = _cached("weather", config.WEATHER_TTL, data.weather_fetch,
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{"loc": config.WEATHER_LOC_NAME, "cond": "--", "temp": "--", "range": "--", "icon": ""})
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mao, s2 = _cached("mao", config.MAO_TTL, lambda: data.mao_fetch(now, with_trend=False),
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{"upd": now.strftime("%H:%M"), "cols": [data._placeholder_col(k) for k in ("单量", "流水", "毛利")],
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"trend": {"dates": [], "series": []}})
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btc, s3 = _cached("btc", config.BTC_TTL, lambda: (data.btc_fetch(), True), data.btc_empty())
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d = {
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"date": {"greg": now.strftime("%Y/%m/%d"), "week": data.WEEK_CN[now.weekday()], "time": now.strftime("%H:%M")},
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"weather": weather,
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"mao": mao,
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"usage": data._usage(now, raw=raw_usage if raw_usage is not None else {}), # 未推送 → 全部 "--"（不读本机文件）
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"usage_gpt": data._usage_gpt(now, raw=raw_gpt), # 未推送 → mock（标「示例数据」）
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"btc": btc,
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}
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return d, [s1, s2, s3]
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def render_png_bytes(d):
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"""渲染 PNG 到内存字节。"""
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with _RENDER_LOCK:
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img = _PNG_RENDERER.render(d)
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buf = io.BytesIO()
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img.save(buf, "PNG", optimize=True)
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return buf.getvalue()
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class Handler(BaseHTTPRequestHandler):
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server_version = "eink-push/1.0"
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protocol_version = "HTTP/1.1"
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def log_message(self, fmt, *args):
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pass
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def _log(self, code, note=""):
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ua = self.headers.get("User-Agent", "-")
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ip = self.headers.get("CF-Connecting-IP") or self.headers.get("X-Forwarded-For") or self.client_address[0]
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print(f"[{time.strftime('%H:%M:%S')}] {code} {self.command} {self.path} ip={ip} ua={ua[:60]} {note}", flush=True)
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def _send(self, code, ctype, body, extra=None):
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self.send_response(code)
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self.send_header("Content-Type", ctype)
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self.send_header("Content-Length", str(len(body)))
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self.send_header("Cache-Control", "no-store, no-cache, must-revalidate, max-age=0")
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self.send_header("Pragma", "no-cache")
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self.send_header("Expires", "0")
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for k, v in (extra or {}).items():
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self.send_header(k, v)
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self.end_headers()
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if self.command != "HEAD":
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self.wfile.write(body)
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def _json(self, code, obj):
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self._send(code, "application/json; charset=utf-8", json.dumps(obj, ensure_ascii=False).encode("utf-8"))
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def _authed(self):
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tok = config.PUSH_TOKEN
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return bool(tok) and self.headers.get("X-Push-Token", "") == tok
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# ---------- GET ----------
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def do_GET(self):
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path = self.path.split("?", 1)[0]
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try:
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if path == config.IMAGE_PATH:
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t0 = time.time()
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d, st = build_data()
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body = render_png_bytes(d)
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with STATE.lock:
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STATE.renders["png"] += 1
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STATE.last_render = time.time()
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self._log(200, f"png {len(body)}B {time.time() - t0:.2f}s [{' '.join(st)}]")
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return self._send(200, "image/png", body)
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if path == config.HTML_PATH:
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t0 = time.time()
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d, st = build_data()
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body = html_renderer.render_html(d).encode("utf-8")
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with STATE.lock:
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STATE.renders["html"] += 1
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STATE.last_render = time.time()
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self._log(200, f"html {len(body)}B {time.time() - t0:.2f}s [{' '.join(st)}]")
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return self._send(200, "text/html; charset=utf-8", body)
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if path == config.HTML_PNG_PATH:
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t0 = time.time()
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raw = "raw=1" in (self.path.split("?", 1) + [""])[1]
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d, st = build_data()
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html = html_renderer.render_html(d)
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img = html_shot.screenshot_html(html)
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if not raw:
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img = html_shot.quantize6(img)
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buf = io.BytesIO(); img.save(buf, "PNG", optimize=True); body = buf.getvalue()
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with STATE.lock:
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STATE.renders["web_png"] = STATE.renders.get("web_png", 0) + 1
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STATE.last_render = time.time()
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self._log(200, f"web-png{'(raw)' if raw else ''} {len(body)}B {time.time() - t0:.2f}s [{' '.join(st)}]")
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return self._send(200, "image/png", body)
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if path == "/health":
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with STATE.lock:
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st = {"ok": True, "uptime_s": int(time.time() - STATE.started), "renders": dict(STATE.renders),
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"last_render": STATE.last_render, "pushed_at": dict(STATE.pushed_at),
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"has_last_good": {k: v is not None for k, v in STATE.last_good.items()},
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"cache_age_s": {k: (int(time.time() - v) if v else None) for k, v in STATE.fetched_at.items()},
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"ttl_s": {"weather": config.WEATHER_TTL, "mao": config.MAO_TTL, "btc": config.BTC_TTL},
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"image_path": config.IMAGE_PATH, "html_path": config.HTML_PATH,
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"html_png_path": config.HTML_PNG_PATH, "tz": config.TZ_NAME}
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self._log(200)
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return self._json(200, st)
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if path in ("/push/usage", "/push/usage_gpt"):
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if not self._authed():
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self._log(401); return self._json(401, {"ok": False, "error": "bad token"})
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kind = path.rsplit("/", 1)[1]
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with STATE.lock:
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raw, at = STATE.raw[kind], STATE.pushed_at[kind]
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self._log(200)
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return self._json(200, {"ok": True, "kind": kind, "pushed_at": at, "raw": raw})
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if path == "/favicon.ico":
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return self._send(204, "image/x-icon", b"")
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self._log(404)
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self._json(404, {"ok": False, "error": "not found"})
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except Exception as e: # noqa: BLE001 —— 任何渲染异常都返回 500 而不是断开连接
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self._log(500, repr(e))
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self._json(500, {"ok": False, "error": repr(e)})
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do_HEAD = do_GET
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# ---------- POST：推送 ----------
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def do_POST(self):
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path = self.path.split("?", 1)[0]
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if path not in ("/push/usage", "/push/usage_gpt"):
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self._log(404); return self._json(404, {"ok": False, "error": "not found"})
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if not self._authed():
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self._log(401); return self._json(401, {"ok": False, "error": "bad token"})
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try:
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n = int(self.headers.get("Content-Length") or 0)
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if n <= 0 or n > 64 * 1024:
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raise ValueError(f"bad content-length {n}")
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raw = json.loads(self.rfile.read(n).decode("utf-8"))
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if not isinstance(raw, dict):
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raise ValueError("body must be a JSON object")
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except Exception as e: # noqa: BLE001
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self._log(400, repr(e)); return self._json(400, {"ok": False, "error": f"bad json: {e}"})
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kind = path.rsplit("/", 1)[1]
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STATE.push(kind, raw)
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self._log(200, f"push {kind} keys={sorted(raw)[:6]}")
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self._json(200, {"ok": True, "kind": kind, "received_at": time.time()})
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def main():
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if not config.PUSH_TOKEN:
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print("[警告] PUSH_TOKEN 未配置：将拒绝一切推送，用量区会一直显示 \"--\"")
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srv = ThreadingHTTPServer((config.SERVER_HOST, config.SERVER_PORT), Handler)
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print(f"服务已启动 http://{config.SERVER_HOST}:{config.SERVER_PORT} 方案一 {config.IMAGE_PATH} 方案二 {config.HTML_PATH} "
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f"方案三 {config.HTML_PNG_PATH} /health", flush=True)
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try:
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srv.serve_forever()
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except KeyboardInterrupt:
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pass
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if __name__ == "__main__":
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main()
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