ykxmz 1.5.0：修复手表端 TLS 证书校验 + MTU 修复网络稳定性

被控端 - 修复 MTU 问题：夹 MSS + 路径 MTU 探测（公网可用率 48% -> 100%） - 复用 HTTP 连接（免掉每次新建 TLS 的 30% 握手失败） - 每分钟回头找局域网，自动切回快 400 倍的路径 - 画面心跳帧：静止时省流量，客户端仍知道流是活的 - 锁屏时给出可操作的提示手表端 - 内置 GTS Root R4 / GlobalSign Root CA，修 SSLHandshakeException - 连接错误翻译成人话（证书/时间/解析/超时分别提示） - 经中转连上后用服务器报的地址刷新已配对记录 - 新增局域网连接页面、服务器延迟检测服务器端 - 支持 chunked 请求体（修每 16 秒一次的连接错乱与大面积 502） - 网络调优脚本 net-tune.sh（开机自动应用） - 管理页：批量删除、网络体检、下载区 - 隧道改 HTTP/2 + 双连接文档 - 许可协议 / 安装前必读 / 安装后须知（作者：小麦子）
2026-10-18 14:50:45 +00:00 · 2026-10-06 19:01:05 +08:00
commit b62ac865ea
3195 changed files with 203292 additions and 0 deletions
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+# -*- coding: utf-8 -*-
+"""手表上的「连不上？」-> 让电脑端弹出网络自检窗口。
+
+为什么走 UDP 而不是 TCP：
+    「连不上」的典型场景就是 TCP 8756 被防火墙拦掉，但 UDP 广播仍然通
+    （这正是"能搜到但连不上"的原因）。所以用 UDP 广播一个请求，
+    只要广播能到电脑，电脑就能把自检窗口弹出来。
+
+改动：
+  discovery.py —— 新增 SELFCHECK_MAGIC / ACK_MAGIC，响应器识别请求并回调
+  server.py    —— 收到请求时启动网络自检（开一个独立控制台窗口）
+"""
+from __future__ import annotations
+
+import sys
+from pathlib import Path
+
+ROOT = Path(r"C:\Users\shu\Desktop\deepseekagent\LanRemote")
+DISCOVERY = ROOT / "windows" / "lanremote" / "discovery.py"
+SERVER = ROOT / "windows" / "lanremote" / "server.py"
+
+# ------------------------------------------------------------- discovery.py
+
+OLD_MAGIC = '''DISCOVERY_PORT = 8766
+PROBE_MAGIC = "LANREMOTE_DISCOVER"
+REPLY_MAGIC = "LANREMOTE_REPLY"
+PROTOCOL = 1
+'''
+NEW_MAGIC = '''DISCOVERY_PORT = 8766
+PROBE_MAGIC = "LANREMOTE_DISCOVER"
+REPLY_MAGIC = "LANREMOTE_REPLY"
+# 手表点「连不上？」时广播这个，电脑收到就弹出网络自检窗口
+SELFCHECK_MAGIC = "LANREMOTE_SELFCHECK"
+ACK_MAGIC = "LANREMOTE_ACK"
+PROTOCOL = 1
+'''
+
+OLD_HELPERS = '''def parse_probe(data: bytes) -> dict | None:'''
+NEW_HELPERS = '''def build_selfcheck_ack(name: str) -> bytes:
+    payload = {"lanremote": ACK_MAGIC, "name": name}
+    return json.dumps(payload, ensure_ascii=False).encode("utf-8")
+
+
+def build_selfcheck_request() -> bytes:
+    payload = {"lanremote": SELFCHECK_MAGIC, "proto": PROTOCOL}
+    return json.dumps(payload, ensure_ascii=False).encode("utf-8")
+
+
+def parse_selfcheck(data: bytes) -> dict | None:
+    try:
+        obj = json.loads(data.decode("utf-8", errors="replace"))
+    except ValueError:
+        return None
+    if not isinstance(obj, dict):
+        return None
+    if obj.get("lanremote") != SELFCHECK_MAGIC:
+        return None
+    return obj
+
+
+def parse_probe(data: bytes) -> dict | None:'''
+
+OLD_INIT = '''        self.on_probe = on_probe          # 可选回调，用于界面提示"有人在找这台电脑"
+'''
+NEW_INIT = '''        self.on_probe = on_probe          # 可选回调，用于界面提示"有人在找这台电脑"
+        # 收到「请打开网络自检」的请求时调用；由上层决定怎么弹窗口
+        self.on_selfcheck = None
+        self.selfcheck_requests = 0
+'''
+
+OLD_LOOP = '''            probe = parse_probe(data)
+            if probe is None:
+                continue
+'''
+NEW_LOOP = '''            # 先看是不是「请打开网络自检」的请求
+            if parse_selfcheck(data) is not None:
+                self.selfcheck_requests += 1
+                try:
+                    self._sock.sendto(
+                        build_selfcheck_ack(str(self.store.get("server_name", ""))),
+                        addr)
+                except OSError:
+                    pass
+                if self.on_selfcheck:
+                    try:
+                        self.on_selfcheck(addr[0])
+                    except Exception:
+                        pass
+                continue
+
+            probe = parse_probe(data)
+            if probe is None:
+                continue
+'''
+
+OLD_STATUS = '''            "answered": self.probes_answered,
+            "last_probe": self.last_probe_at,
+            "error": self.last_error,
+'''
+NEW_STATUS = '''            "answered": self.probes_answered,
+            "last_probe": self.last_probe_at,
+            "selfcheck_requests": self.selfcheck_requests,
+            "error": self.last_error,
+'''
+
+# ---------------------------------------------------------------- server.py
+
+OLD_START = '''        if self._discovery is not None:
+            self._discovery.stop()
+            self._discovery = None
+'''
+NEW_START = '''        if self._discovery is not None:
+            self._discovery.stop()
+            self._discovery = None
+'''
+
+OLD_DISCOVERY_INIT = '''            self._discovery = DiscoveryResponder('''
+NEW_DISCOVERY_INIT = '''            self._discovery = DiscoveryResponder('''
+
+# 在 start() 里挂上 on_selfcheck
+OLD_ON_PROBE = '''        self._discovery.on_probe = self._on_probe'''
+NEW_ON_PROBE = '''        self._discovery.on_probe = self._on_probe
+        self._discovery.on_selfcheck = self._on_selfcheck_request'''
+
+
+def main() -> int:
+    text = DISCOVERY.read_text(encoding="utf-8")
+    ok = True
+    for old, new, tag in ((OLD_MAGIC, NEW_MAGIC, "常量"),
+                          (OLD_HELPERS, NEW_HELPERS, "构造/解析"),
+                          (OLD_INIT, NEW_INIT, "初始化"),
+                          (OLD_LOOP, NEW_LOOP, "主循环"),
+                          (OLD_STATUS, NEW_STATUS, "状态")):
+        if old not in text:
+            print(f"  [失败] discovery.py {tag} 锚点未匹配")
+            ok = False
+        else:
+            text = text.replace(old, new, 1)
+            print(f"  discovery.py / {tag}: OK")
+    if ok:
+        DISCOVERY.write_text(text, encoding="utf-8")
+
+    text = SERVER.read_text(encoding="utf-8")
+    if OLD_ON_PROBE not in text:
+        print("  [失败] server.py on_probe 锚点未匹配")
+        ok = False
+    else:
+        text = text.replace(OLD_ON_PROBE, NEW_ON_PROBE, 1)
+        print("  server.py / 挂载回调: OK")
+
+    if ok:
+        SERVER.write_text(text, encoding="utf-8")
+
+    print("\n语法检查：")
+    import ast
+    for name, path in (("discovery.py", DISCOVERY), ("server.py", SERVER)):
+        try:
+            ast.parse(path.read_text(encoding="utf-8"))
+            print(f"  {name}: OK")
+        except SyntaxError as exc:
+            print(f"  {name}: 语法错误 {exc}")
+            ok = False
+    return 0 if ok else 1
+
+
+if __name__ == "__main__":
+    sys.exit(main())