🐶 Sync 2025-11-02 14:26:26
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actions-user
201
luci-app-passwall/root/usr/share/passwall/socks_auto_switch.sh
Executable file
201
luci-app-passwall/root/usr/share/passwall/socks_auto_switch.sh
Executable file
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#!/bin/sh
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CONFIG=passwall
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LOG_FILE=/tmp/log/$CONFIG.log
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LOCK_FILE_DIR=/tmp/lock
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LOG_EVENT_FILTER=
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LOG_EVENT_CMD=
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flag=0
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echolog() {
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local d="$(date "+%Y-%m-%d %H:%M:%S")"
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local c="$1"
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echo -e "$d: $c" >> $LOG_FILE
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[ -n "$LOG_EVENT_CMD" ] && [ -n "$(echo -n $c |grep -E "$LOG_EVENT_FILTER")" ] && {
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$(echo -n $LOG_EVENT_CMD |sed "s/%s/$c/g")
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}
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}
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config_n_get() {
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local ret=$(uci -q get "${CONFIG}.${1}.${2}" 2>/dev/null)
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echo "${ret:=$3}"
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}
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test_url() {
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local url=$1
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local try=1
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[ -n "$2" ] && try=$2
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local timeout=2
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[ -n "$3" ] && timeout=$3
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local extra_params=$4
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if /usr/bin/curl --help all | grep -q "\-\-retry-all-errors"; then
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extra_params="--retry-all-errors ${extra_params}"
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fi
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local status=$(/usr/bin/curl -I -o /dev/null -skL ${extra_params} --connect-timeout ${timeout} --retry ${try} -w %{http_code} "$url")
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case "$status" in
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204)
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status=200
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;;
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esac
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echo $status
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}
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test_proxy() {
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local result=0
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local status=$(test_url "${probe_url}" ${retry_num} ${connect_timeout} "-x socks5h://127.0.0.1:${socks_port}")
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if [ "$status" = "200" ]; then
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result=0
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else
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local status2=$(test_url "https://www.baidu.com" ${retry_num} ${connect_timeout})
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if [ "$status2" = "200" ]; then
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result=1
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else
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result=2
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ping -c 3 -W 1 223.5.5.5 > /dev/null 2>&1
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[ $? -eq 0 ] && {
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result=1
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}
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fi
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fi
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echo $result
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}
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test_node() {
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local node_id=$1
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local _type=$(echo $(config_n_get ${node_id} type) | tr 'A-Z' 'a-z')
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[ -n "${_type}" ] && {
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local _tmp_port=$(/usr/share/${CONFIG}/app.sh get_new_port 61080 tcp,udp)
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/usr/share/${CONFIG}/app.sh run_socks flag="test_node_${node_id}" node=${node_id} bind=127.0.0.1 socks_port=${_tmp_port} config_file=test_node_${node_id}.json
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local curlx="socks5h://127.0.0.1:${_tmp_port}"
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sleep 1s
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local _proxy_status=$(test_url "${probe_url}" ${retry_num} ${connect_timeout} "-x $curlx")
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# 结束 SS 插件进程
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local pid_file="/tmp/etc/${CONFIG}/test_node_${node_id}_plugin.pid"
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[ -s "$pid_file" ] && kill -9 "$(head -n 1 "$pid_file")" >/dev/null 2>&1
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pgrep -af "test_node_${node_id}" | awk '! /socks_auto_switch\.sh/{print $1}' | xargs kill -9 >/dev/null 2>&1
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rm -rf /tmp/etc/${CONFIG}/test_node_${node_id}*.*
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if [ "${_proxy_status}" -eq 200 ]; then
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return 0
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fi
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}
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return 1
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}
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test_auto_switch() {
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flag=$((flag + 1))
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local b_nodes=$1
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local now_node=$2
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[ -z "$now_node" ] && {
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if [ -n "$(/usr/share/${CONFIG}/app.sh get_cache_var "socks_${id}")" ]; then
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now_node=$(/usr/share/${CONFIG}/app.sh get_cache_var "socks_${id}")
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else
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#echolog "Socks切换检测：未知错误"
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return 1
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fi
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}
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[ $flag -le 1 ] && {
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main_node=$now_node
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}
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local status=$(test_proxy)
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if [ "$status" = "2" ]; then
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echolog "Socks切换检测：无法连接到网络，请检查网络是否正常！"
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return 2
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fi
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#检测主节点是否能使用
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if [ "$restore_switch" = "1" ] && [ -n "$main_node" ] && [ "$now_node" != "$main_node" ]; then
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test_node ${main_node}
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[ $? -eq 0 ] && {
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#主节点正常，切换到主节点
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echolog "Socks切换检测：${id}主节点【$(config_n_get $main_node type)：[$(config_n_get $main_node remarks)]】正常，切换到主节点！"
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/usr/share/${CONFIG}/app.sh socks_node_switch flag=${id} new_node=${main_node}
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[ $? -eq 0 ] && {
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echolog "Socks切换检测：${id}节点切换完毕！"
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}
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return 0
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}
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fi
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if [ "$status" = "0" ]; then
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#echolog "Socks切换检测：${id}【$(config_n_get $now_node type)：[$(config_n_get $now_node remarks)]】正常。"
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return 0
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elif [ "$status" = "1" ]; then
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local new_node msg
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if [ "$backup_node_num" -gt 1 ]; then
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# 有多个后备节点时
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local first_node found node
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for node in $b_nodes; do
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[ -z "$first_node" ] && first_node="$node" # 记录第一个节点
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[ "$found" = "1" ] && { new_node="$node"; break; } # 找到当前节点后取下一个
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[ "$node" = "$now_node" ] && found=1 # 标记找到当前节点
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done
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# 如果没找到当前节点，或者当前节点是最后一个，就取第一个节点
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[ -z "$new_node" ] && new_node="$first_node"
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msg="切换到$([ "$now_node" = "$main_node" ] && echo 备用节点 || echo 下一个备用节点)检测！"
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else
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# 只有一个后备节点时，与主节点轮询
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new_node=$([ "$now_node" = "$main_node" ] && echo "$b_nodes" || echo "$main_node")
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msg="切换到$([ "$now_node" = "$main_node" ] && echo 备用节点 || echo 主节点)检测！"
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fi
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echolog "Socks切换检测：${id}【$(config_n_get $now_node type)：[$(config_n_get $now_node remarks)]】异常，$msg"
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test_node ${new_node}
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if [ $? -eq 0 ]; then
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# [ "$restore_switch" = "0" ] && {
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# uci set $CONFIG.${id}.node=$new_node
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# [ -z "$(echo $b_nodes | grep $main_node)" ] && uci add_list $CONFIG.${id}.autoswitch_backup_node=$main_node
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# uci commit $CONFIG
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# }
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echolog "Socks切换检测：${id}【$(config_n_get $new_node type)：[$(config_n_get $new_node remarks)]】正常，切换到此节点！"
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/usr/share/${CONFIG}/app.sh socks_node_switch flag=${id} new_node=${new_node}
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[ $? -eq 0 ] && {
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echolog "Socks切换检测：${id}节点切换完毕！"
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}
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return 0
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else
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test_auto_switch "${b_nodes}" ${new_node}
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fi
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fi
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}
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start() {
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id=$1
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LOCK_FILE=${LOCK_FILE_DIR}/${CONFIG}_socks_auto_switch_${id}.lock
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LOG_EVENT_FILTER=$(uci -q get "${CONFIG}.global[0].log_event_filter" 2>/dev/null)
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LOG_EVENT_CMD=$(uci -q get "${CONFIG}.global[0].log_event_cmd" 2>/dev/null)
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main_node=$(config_n_get $id node)
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socks_port=$(config_n_get $id port 0)
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delay=$(config_n_get $id autoswitch_testing_time 30)
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connect_timeout=$(config_n_get $id autoswitch_connect_timeout 3)
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retry_num=$(config_n_get $id autoswitch_retry_num 1)
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restore_switch=$(config_n_get $id autoswitch_restore_switch 0)
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probe_url=$(config_n_get $id autoswitch_probe_url "https://www.google.com/generate_204")
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backup_node=$(config_n_get $id autoswitch_backup_node)
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if [ -n "$backup_node" ]; then
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backup_node=$(echo "$backup_node" | tr -s ' ' '\n' | uniq | tr -s '\n' ' ')
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backup_node_num=$(printf "%s\n" "$backup_node" | wc -w)
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if [ "$backup_node_num" -eq 1 ]; then
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[ "$main_node" = "$backup_node" ] && return
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fi
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else
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return
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fi
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while [ -n "$backup_node" ]; do
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[ -f "$LOCK_FILE" ] && {
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sleep 6s
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continue
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}
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pgrep -af "${CONFIG}/" | awk '/app\.sh.*(start|stop)/ || /nftables\.sh/ || /iptables\.sh/ { found = 1 } END { exit !found }' && {
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# 特定任务执行中不检测
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sleep 6s
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continue
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}
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touch $LOCK_FILE
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test_auto_switch "$backup_node"
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rm -f $LOCK_FILE
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sleep ${delay}
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done
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}
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start $@
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