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112 lines
4.1 KiB
Bash
112 lines
4.1 KiB
Bash
#!/bin/bash
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# 试试能不能把隧道从"美国西海岸"挪到亚洲节点。
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#
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# 为什么这可能是最大的一招：
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# 实测隧道落点全是 sjc / lax（美国圣何塞、洛杉矶），
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# 中国 -> 美西 往返就是 ~240ms 起步，加上 4G 的丢包，
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# 每个请求固定在隧道回源这一跳吃 ~1100ms。
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# 如果能连到 东京 / 香港 / 新加坡，这一跳能砍掉一大半。
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#
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# cloudflared 理论上支持按区域选 edge，但其实它主要是按
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# 运营商的 BGP 出口自动选。这里把能试的都试一遍，
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# 用**实测落点**判断有没有用，而不是看参数有没有被接受。
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set -u
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SVC=/etc/systemd/system/lanremote-tunnel.service
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BACKUP=/root/lanremote-tunnel.service.bak.region.$(date +%s)
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cp -a "$SVC" "$BACKUP"
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UA='LanRemote/1.8.0'
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echo "════════ 1. cloudflared 支持的区域参数 ════════"
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cloudflared tunnel run --help 2>&1 | grep -iE 'region|edge' -A2 | head -20 | sed 's/^/ /'
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echo
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echo " cloudflared 版本: $(cloudflared --version 2>&1 | head -1)"
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echo
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echo "════════ 2. 当前落点（基线）════════"
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curl -s --max-time 5 http://127.0.0.1:20241/metrics 2>/dev/null \
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| grep 'server_locations.*} 1' | sed 's/^/ /'
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echo
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echo "════════ 3. 逐个试区域参数 ════════"
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try_region() {
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local arg="$1" label="$2"
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echo " ── $label（$arg）──"
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# 回滚到干净状态再叠加参数
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cp -a "$BACKUP" "$SVC"
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if [ -n "$arg" ]; then
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sed -i "s|\(ExecStart=.*cloudflared tunnel\)|\1 $arg|" "$SVC"
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fi
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systemctl daemon-reload
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systemctl restart lanremote-tunnel
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# 等最多 90 秒看能不能建起连接
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local n=0
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for i in $(seq 1 18); do
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sleep 5
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n=$(curl -s --max-time 4 http://127.0.0.1:20241/metrics 2>/dev/null \
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| grep '^cloudflared_tunnel_ha_connections' | awk '{print $2}')
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[ "${n:-0}" -ge 2 ] && break
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done
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if [ "${n:-0}" -lt 2 ]; then
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echo " 连接数 $n —— **没连上，这个参数不能用**"
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return 1
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fi
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echo " 连接数 $n"
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echo " 落点:"
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curl -s --max-time 5 http://127.0.0.1:20241/metrics 2>/dev/null \
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| grep 'server_locations.*} 1' | sed 's/^/ /'
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# 量 6 次公网延迟
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local times=()
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for i in $(seq 1 6); do
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ms=$(curl -s -o /dev/null -w '%{time_total}' --max-time 25 \
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-H "User-Agent: $UA" https://relay.xxmxxs.top/v1/health \
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| awk '{printf "%d", $1*1000}')
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times+=("$ms")
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done
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local stats=$(printf '%s\n' "${times[@]}" | sort -n | awk '{a[NR]=$1} END {printf "最小 %d 中位 %d 最大 %d", a[1], a[int(NR/2)+1], a[NR]}')
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echo " 延迟: $stats ms"
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echo "$label|$n|$stats" >> /tmp/region.txt
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return 0
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}
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rm -f /tmp/region.txt
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echo "" > /dev/null
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# 先看 help 里有没有 region 这个 flag
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HAS_REGION=$(cloudflared tunnel run --help 2>&1 | grep -c -- '--region' || true)
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echo " --region 参数是否存在: $([ "${HAS_REGION:-0}" -gt 0 ] && echo 是 || echo 否)"
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echo
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# 逐个试。--region 的取值 cloudflared 没在 help 里列全，
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# 常见的是 us / eu / ap 之类；不合法会直接报错退出。
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for r in us eu ap; do
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try_region "--region $r" "region=$r" || true
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echo
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done
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echo "════════ 4. 汇总 ════════"
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if [ -f /tmp/region.txt ]; then
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cat /tmp/region.txt | sed 's/^/ /'
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else
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echo " （没有任何区域参数能用）"
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fi
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echo
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echo "════════ 5. 回滚到备份 ════════"
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cp -a "$BACKUP" "$SVC"
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systemctl daemon-reload
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systemctl restart lanremote-tunnel
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sleep 20
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echo " 参数: $(grep -oE '--protocol [a-z0-9]+|--ha-connections [0-9]+|--edge-ip-version [0-9]+' "$SVC" | tr '\n' ' ')"
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echo " 连接数: $(curl -s --max-time 5 http://127.0.0.1:20241/metrics 2>/dev/null | grep '^cloudflared_tunnel_ha_connections' | awk '{print $2}')"
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echo " 落点:"
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curl -s --max-time 5 http://127.0.0.1:20241/metrics 2>/dev/null \
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| grep 'server_locations.*} 1' | sed 's/^/ /'
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echo " 备份: $BACKUP"
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