passwall切换节点后本项目失效的解决方案

[wwjj999]

如题。经常遇到切换节点后本项目功能虽然显示绿色（启用状态），但客户端无法被劫持（安卓客户端版本是网易云音乐改版90.40，更高版本和原版君无法使用）。
于是用AI写了个脚本，放在启动项的本地脚本内（不知道是不是应该放在这里？）。
测试是SSH后直接输入的，貌似成功。希望大家测试并提出修改意见🙏🏻
以下是脚本：

写入监控脚本

cat > /usr/bin/unblock-node-watch.sh <<'EOF'
#!/bin/sh

/usr/bin/unblock-node-watch.sh

监测 default route 和 /etc/config/passwall 修改时间。

若检测到变化，延时 8 秒后重启 UnblockNeteaseMusic（并记录日志）。

WATCH_INTERVAL=2 # 检测间隔（秒）
DEBOUNCE_SEC=8 # 发现变化后等待多少秒再重启
STATE_FILE="/var/run/unblock-watch.state"
LOG_TAG="unblock-watch"

helper: 获取默认路由

get_route_key() {
ip route show default 2>/dev/null | tr -s ' ' | sed -n '1p'
|| ip route get 1.1.1.1 2>/dev/null | tr -s ' ' | sed -n '1p'
|| echo "no-route"
}

helper: 获取 passwall 配置文件的 mtime

get_passwall_mtime() {
if [ -f /etc/config/passwall ]; then
stat -c %Y /etc/config/passwall 2>/dev/null || echo 0
else
echo 0
fi
}

初始化上次值

if [ -f "$STATE_FILE" ]; then
LAST_ROUTE="$(sed -n '1p' $STATE_FILE 2>/dev/null || echo "")"
LAST_PW_MTIME="$(sed -n '2p' $STATE_FILE 2>/dev/null || echo "0")"
else
LAST_ROUTE="$(get_route_key)"
LAST_PW_MTIME="$(get_passwall_mtime)"
mkdir -p "$(dirname $STATE_FILE)"
printf "%s\n%s\n" "$LAST_ROUTE" "$LAST_PW_MTIME" > "$STATE_FILE"
fi

logger -t "$LOG_TAG" "watcher started: interval=${WATCH_INTERVAL}s debounce=${DEBOUNCE_SEC}s"

while true; do
CUR_ROUTE="$(get_route_key)"
CUR_PW_MTIME="$(get_passwall_mtime)"

if [ "$CUR_ROUTE" != "$LAST_ROUTE" ] || [ "$CUR_PW_MTIME" != "$LAST_PW_MTIME" ]; then
logger -t "$LOG_TAG" "detected change"
printf "%s\n%s\n" "$CUR_ROUTE" "$CUR_PW_MTIME" > "$STATE_FILE"

sleep "$DEBOUNCE_SEC"

NEW_ROUTE="$(get_route_key)"
NEW_PW_MTIME="$(get_passwall_mtime)"
if [ "$NEW_ROUTE" = "$CUR_ROUTE" ] && [ "$NEW_PW_MTIME" = "$CUR_PW_MTIME" ]; then
  logger -t "$LOG_TAG" "stable after ${DEBOUNCE_SEC}s — restarting unblockneteasemusic and dnsmasq"
  /etc/init.d/unblockneteasemusic restart >/dev/null 2>&1
  /etc/init.d/dnsmasq restart >/dev/null 2>&1
else
  logger -t "$LOG_TAG" "state changed during debounce; skipping restart"
fi

LAST_ROUTE="$NEW_ROUTE"
LAST_PW_MTIME="$NEW_PW_MTIME"
printf "%s\n%s\n" "$LAST_ROUTE" "$LAST_PW_MTIME" > "$STATE_FILE"

fi

sleep "$WATCH_INTERVAL"
done
EOF
chmod +x /usr/bin/unblock-node-watch.sh

写入 init 脚本

cat > /etc/init.d/unblock-watch <<'EOF'
#!/bin/sh /etc/rc.common

/etc/init.d/unblock-watch

START=95
STOP=10
USE_PROCD=1

start() {
procd_open_instance
procd_set_param command /usr/bin/unblock-node-watch.sh
procd_set_param respawn
procd_close_instance
}
EOF
chmod +x /etc/init.d/unblock-watch

启用并启动

/etc/init.d/unblock-watch enable
/etc/init.d/unblock-watch start