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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)
132 lines
4.9 KiB
Python
132 lines
4.9 KiB
Python
# -*- coding: utf-8 -*-
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"""加"心跳帧":画面没变也要定期发一帧。
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问题(我自己引入的):
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为了省流量,我给抓屏加了"画面没变就不编码、不发送"的去重。
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但这样在**静止桌面**上会一帧都不发 ——
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客户端不知道流还活着,测试里"收到至少 3 帧镜像"也会失败。
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顺带还有别的影响:某些播放器/解码路径长时间没数据会超时。
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修法:
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画面没变时**不要一直不发**,而是每隔一段时间(默认 1.5 秒)
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强制编码发一帧当心跳。既省了绝大部分流量(静止时 12fps -> 0.67fps),
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又保证客户端始终知道流是活的。
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"""
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from __future__ import annotations
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import sys
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from pathlib import Path
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SCREEN = Path(r"C:\Users\shu\Desktop\deepseekagent\LanRemote\windows"
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r"\lanremote\screen.py")
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# ---------- 1. grab_jpeg 支持 force ----------
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SIG_OLD = ''' def grab_jpeg(self) -> tuple[bytes, int, int]:'''
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SIG_NEW = ''' def grab_jpeg(self, force: bool = False) -> tuple[bytes, int, int]:'''
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DEDUP_OLD = ''' digest = None
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if self.dedup:'''
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DEDUP_NEW = ''' digest = None
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if self.dedup and not force:'''
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# ---------- 2. 循环里加心跳 ----------
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LOOP_OLD = ''' if not jpeg:
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# 画面没变(capturer 做了去重):不发送,间隔拉长一点再抓。
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idle = min(4.0, idle * 1.6)
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self._stop.wait(interval * idle)
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continue'''
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LOOP_NEW = ''' if not jpeg:
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# 画面没变(capturer 做了去重)。
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# 但不能一直不发 —— 客户端会以为流断了。
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# 所以每隔 HEARTBEAT 秒强制发一帧当心跳。
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now = time.time()
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if now - self._last_sent >= self.HEARTBEAT:
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try:
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jpeg, width, height = self.capturer.grab_jpeg(
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force=True)
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except ScreenError as exc:
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self.last_error = str(exc)
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time.sleep(0.5)
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continue
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if jpeg:
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self.frames_sent += 1
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self._last_sent = now
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idle = 1.0
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try:
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if self.on_frame(jpeg, width, height) is False:
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break
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except Exception as exc: # noqa: BLE001
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self.last_error = str(exc)
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break
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elapsed = time.time() - started
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wait = interval - elapsed
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if wait > 0:
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self._stop.wait(wait)
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continue
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idle = min(4.0, idle * 1.6)
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self._stop.wait(interval * idle)
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continue
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self._last_sent = time.time()'''
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# ---------- 3. 字段 ----------
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INIT_OLD = ''' self.frames_sent = 0
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self.last_error = ""
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self._started_at = 0.0'''
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INIT_NEW = ''' self.frames_sent = 0
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self.last_error = ""
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self._started_at = 0.0
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# 上次真正发出帧的时间(心跳判断用)
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self._last_sent = 0.0'''
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CLASS_OLD = '''class FrameStreamer:
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"""按固定帧率在后台线程推帧,供服务端广播。"""'''
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CLASS_NEW = '''class FrameStreamer:
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"""按固定帧率在后台线程推帧,供服务端广播。
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画面静止时不会傻发同样的画面(用 32x18 缩略图指纹判断),
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但每隔 HEARTBEAT 秒会强制发一帧,让客户端知道流还活着。
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"""
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# 画面没变时,最多隔这么久也要发一帧(心跳)
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HEARTBEAT = 1.5'''
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def main() -> int:
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text = SCREEN.read_text(encoding="utf-8")
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if "_last_sent" in text:
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print(" 已经改过")
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return 0
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ok = True
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for old, new, label in ((CLASS_OLD, CLASS_NEW, "加 HEARTBEAT 常量"),
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(INIT_OLD, INIT_NEW, "加 _last_sent 字段"),
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(SIG_OLD, SIG_NEW, "grab_jpeg 支持 force"),
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(DEDUP_OLD, DEDUP_NEW, "force 时跳过去重"),
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(LOOP_OLD, LOOP_NEW, "循环里加心跳")):
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if old not in text:
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print(f" [失败] {label} —— 锚点没找到")
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ok = False
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continue
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text = text.replace(old, new, 1)
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print(f" {label}")
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SCREEN.write_text(text, encoding="utf-8", newline="\n")
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import ast
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try:
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ast.parse(text)
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print(" screen.py 语法 OK")
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except SyntaxError as exc:
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print(f" screen.py 语法错误: 行 {exc.lineno}: {exc.msg}")
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ok = False
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return 0 if ok else 1
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if __name__ == "__main__":
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sys.exit(main())
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