YANG JIANKUAN
2121b1eff4
原走 Zectrix 公网 API + 设备 MAC，现改为直连局域网墨水屏设备（喵喵固件） 的 HTTP 接口：POST /upload 推送 PNG 触发刷屏。设备画廊按追加保存，故推送 前先 GET /images 清空旧图，避免图片越推越多、且避免 slideshow 模式轮播 到过期图。 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
47 lines
1.7 KiB
Python
47 lines
1.7 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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"""
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推送层 —— 直连局域网墨水屏设备（喵喵固件，仅用标准库 urllib，无第三方依赖）。
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固件开源：https://gitee.com/gxp666111/miaomiao（web/ 为设备自带管理页，可在浏览器打开
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http://<EPD_HOST>/ 调试同一套接口）。
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"""
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import json
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import urllib.parse
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import urllib.request
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import urllib.error
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import config
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def _request(method, path, headers=None, body=None):
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url = f"http://{config.EPD_HOST}{path}"
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req = urllib.request.Request(url, data=body, headers=headers or {}, method=method)
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try:
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with urllib.request.urlopen(req, timeout=30) as resp:
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return resp.read().decode("utf-8", "ignore")
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except urllib.error.HTTPError as e:
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raise RuntimeError(f"HTTP {e.code}: {e.read().decode('utf-8', 'ignore')}") from e
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def _list_gallery_names():
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text = _request("GET", "/images")
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return [item["name"] for item in json.loads(text).get("items", [])]
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def _clear_gallery():
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"""设备画廊按追加保存，用完即删，使其始终只留最新一张。单张删除失败不影响后续上传。"""
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for name in _list_gallery_names():
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try:
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_request("POST", f"/delete_image?name={urllib.parse.quote(name)}")
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except Exception as e:
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print(f"[推送] 清理画廊旧图 {name} 失败：{e}")
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def push_image(image_path):
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"""推送图片到局域网墨水屏设备：先清空画廊旧图，再上传新图触发显示刷新。"""
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_clear_gallery()
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with open(image_path, "rb") as fp:
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content = fp.read()
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resp = _request("POST", "/upload", headers={"Content-Type": "image/png"}, body=content)
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return config.EPD_HOST, resp
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