Files
xmz7891 bf15a2ee61 静态资源交给 Cloudflare 边缘缓存(下载提速 41 倍)
实测基线:
  ykxmz-setup-1.8.1.exe   只下到 237568/15067199 字节就停(17 KB/s)
  ykxmz-watch-1.8.1.apk   201523 字节 / 66.8 秒 = 3 KB/s
  ykxmz-server-1.8.1.zip  214900 字节 / 3.1 秒  = 67 KB/s

原因:relay 给所有响应都发 Cache-Control: no-store,
Cloudflare 完全不缓存 —— 每次下载/每张图都要穿隧道回 4G 源站。

改动:
  /download/*   no-store -> public, max-age=604800, immutable
                文件名带版本号,同一名字内容永不改变,可以长缓存
  /             -> public, max-age=60(挡住刷新重复回源)
  /favicon.ico  已是 max-age=86400,保持不变
  /shot/*       已是 max-age=86400,保持不变
  /v1/*         保持 no-store(接口必须实时)

顺带修两个自己踩的坑:

1. _send() 无条件先发 no-store,再追加 extra 里的 Cache-Control,
   结果是**两个 Cache-Control 头**,客户端只认第一个 ——
   调用方传的缓存策略被吃掉。改成 extra 里有就不再发默认值。

2. do_HEAD 和 do_GET 的缓存头不一致:HEAD 对非 /shot/ 一律报 no-store。
   下载器/代理用 HEAD 探测时会误判文件不可缓存。
   现在 _head_info 给每个路由带上和 GET 完全相同的缓存头,
   do_HEAD 也不再盲目覆盖。

结果(同一个测试口径):
  setup.exe  17 KB/s(截断) -> 695 KB/s 完整 15 MB   41 倍
  watch.apk   3 KB/s         -> 101 KB/s              33 倍
  server.zip 67 KB/s         ->  87 KB/s
  三个文件全部 cf-cache-status=HIT(不再穿隧道回源)

排查过程记一笔:我一开始用 curl -I 验证,
看到的全是 no-store —— 因为 **-I 发的是 HEAD**,
而 HEAD 走的是另一个分支。查了半天才发现是验证方法错了。
2026-10-07 15:44:48 +08:00

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#!/bin/bash
# 1.8.1 最终验收:从公网走一遍用户会走的全部路径
set -u
BASE=https://relay.xxmxxs.top
UA='LanRemote/1.8.1'
echo "════════ 1. 中转版本和隧道 ════════"
curl -s --max-time 15 "$BASE/v1/health" | head -c 130
echo
echo " 隧道连接: $(curl -s --max-time 5 http://127.0.0.1:20241/metrics 2>/dev/null | grep '^cloudflared_tunnel_ha_connections' | awk '{print $2}') 条"
echo " 协议参数: $(grep -c 'protocol quic' /etc/systemd/system/lanremote-tunnel.service) (1=quic)"
echo " 长轮询: $(tail -30 /root/lanremote-relay/relay.log | grep '长轮询' | tail -1 | grep -oE '[0-9]+ 秒')"
echo
echo "════════ 2. 官网 ════════"
curl -s --max-time 25 -H "User-Agent: $UA" "$BASE/" -o /tmp/site.html
echo " HTTP $(curl -s -o /dev/null -w '%{http_code}' --max-time 25 -H "User-Agent: $UA" "$BASE/") $(wc -c < /tmp/site.html) 字节"
echo " 下载按钮:"
grep -o 'href="/download/[^"]*"' /tmp/site.html | sort -u | sed 's/^/ /'
echo " 管理页字眼: $(grep -cE 'zhongzhuanzhan|管理后台|管理页' /tmp/site.html || echo 0) 处(应为 0)"
echo
echo "════════ 3. 三个成品能下吗 ════════"
for f in ykxmz-setup-1.8.1.exe ykxmz-server-1.8.1.zip ykxmz-watch-1.8.1.apk; do
hdr=$(curl -sI --max-time 40 -H "User-Agent: $UA" "$BASE/download/$f")
code=$(echo "$hdr" | head -1 | awk '{print $2}')
len=$(echo "$hdr" | grep -i '^content-length' | tr -d '\r' | awk '{print $2}')
printf " %-30s HTTP %-4s %s 字节\n" "$f" "$code" "${len:-?}"
done
echo
echo "════════ 4. 长轮询还能跑通吗(2 次真实验证)════════"
STAMP=$(date +%s)
DEV="final-${STAMP}"
CODE=$(printf "%06d" $(( STAMP % 1000000 )))
REG=$(curl -s --max-time 30 -X POST "$BASE/v1/agent/register" \
-H 'Content-Type: application/json' -H "User-Agent: $UA" \
-d "{\"deviceId\":\"$DEV\",\"code\":\"$CODE\",\"name\":\"final\",\"version\":\"1.8.1\"}")
TOKEN=$(echo "$REG" | python3 -c "import sys,json; print(json.load(sys.stdin).get('token',''))" 2>/dev/null)
echo " 探针注册: $([ -n "$TOKEN" ] && echo 成功 || echo 失败)"
for i in 1 2; do
out=$(curl -s -o /dev/null -w '%{http_code} %{time_total}' --max-time 130 \
-X POST "$BASE/v1/agent/poll" -H "X-Token: $TOKEN" -H "User-Agent: $UA")
printf " 第 %d 次: 码 %s 耗时 %.1fs(应约 61 秒)\n" \
"$i" "$(echo "$out" | awk '{print $1}')" "$(echo "$out" | awk '{print $2}')"
done
KEY=$(cat /root/lanremote-relay/data/admin_key.txt 2>/dev/null)
curl -s --max-time 20 -X POST "http://127.0.0.1:8080/v1/admin/delete" \
-H "X-Admin: $KEY" -H 'Content-Type: application/json' \
-d "{\"deviceId\":\"$DEV\"}" > /dev/null 2>&1
echo " 探针已清理"
echo
echo "════════ 5. 公网可用率(10 次)════════"
ok=0
for i in $(seq 1 10); do
c=$(curl -s -o /dev/null -w '%{http_code}' --max-time 20 -H "User-Agent: $UA" "$BASE/v1/health")
[ "$c" = "200" ] && ok=$((ok+1))
printf " %2d: %s\n" "$i" "$c"
sleep 1
done
echo " 可用 $ok/10"
echo
echo "════════ 6. 中转有没有报错 ════════"
journalctl -u lanremote-relay --since '5 minutes ago' --no-pager 2>/dev/null \
| grep -icE 'traceback|nameerror|typeerror' | sed 's/^/ 错误行数: /'
tail -3 /root/lanremote-relay/relay.log | sed 's/^/ /'