ykxmz/_build/test_tunnel.sh

#!/bin/bash
# 验证 Cloudflare 快速隧道能不能用。
# 起一个测试 HTTP 服务，用 cloudflared 开隧道，拿到公网地址。
set -u

pkill -f 'http.server 8080' 2>/dev/null
pkill -f 'cloudflared tunnel' 2>/dev/null
sleep 1

echo "===== 1. 起测试 HTTP 服务 ====="
cd /root
echo "hello-from-4g-wifi" > /root/testpage.txt
nohup python3 -m http.server 8080 --bind 127.0.0.1 > /root/httpsrv.log 2>&1 &
sleep 2
if curl -s --max-time 5 http://127.0.0.1:8080/testpage.txt | grep -q hello; then
    echo "  本机 HTTP 正常"
else
    echo "  ✗ 本机 HTTP 起不来"
    cat /root/httpsrv.log
    exit 1
fi

echo
echo "===== 2. 开 Cloudflare 快速隧道 ====="
rm -f /root/cf.log
nohup cloudflared tunnel --no-autoupdate --url http://127.0.0.1:8080 \
    > /root/cf.log 2>&1 &
echo "  cloudflared 已启动，等它拿到地址…"

URL=""
for i in $(seq 1 40); do
    sleep 2
    URL=$(grep -oE 'https://[a-z0-9-]+\.trycloudflare\.com' /root/cf.log | head -1)
    if [ -n "$URL" ]; then
        echo "  第 $((i*2)) 秒拿到地址: $URL"
        break
    fi
done

if [ -z "$URL" ]; then
    echo "  ✗ 40 次都没拿到地址，cloudflared 日志："
    tail -30 /root/cf.log
    exit 1
fi

echo
echo "===== 3. 从设备自己访问这个公网地址 ====="
for i in 1 2 3; do
    BODY=$(curl -s --max-time 20 "$URL/testpage.txt")
    if echo "$BODY" | grep -q hello; then
        echo "  第 $i 次: 成功 -> $BODY"
        break
    else
        echo "  第 $i 次: 还没通（隧道建立中）"
        sleep 5
    fi
done

echo
echo "===== 4. cloudflared 进程状态 ====="
ps aux | grep -c '[c]loudflared'
echo
echo "URL=$URL" > /root/cf_url.txt
echo "  地址已存到 /root/cf_url.txt"
cat /root/cf_url.txt