passwall脚本

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#!/bin/sh
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# 脚本使用方法：增加定时任务“*/2 * * * *  bash /root/passeall_sub_auto_uptate.sh”，两分钟执行一次
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current_date=$(date +"%Y-%m-%d %H:%M:%S")
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# 检查passwall是否开启
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passwall_status=`ps | grep -c passwall`
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if (( $passwall_status < 2 )); then
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    echo "$current_date - passwall未运行，退出脚本！" >> passwall_sh_log.txt
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    exit
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fi
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# 检查网络连接是否正常
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ping -W 5 -c 1 223.5.5.5 > /dev/null
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if [ $? -eq 1 ]; then
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    echo "$current_date - 外部网络连接异常，退出脚本！" >> passwall_sh_log.txt
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    exit
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fi
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# 检查国内DNS解析是否正常
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nslookup -timeout=5 www.baidu.com > /dev/null
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if [ $? -eq 1 ]; then
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    echo "$current_date - 外部网络DNS解析异常，不具备执行条件，退出脚本！" >> passwall_sh_log.txt
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    exit
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fi
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# 检查外网连接是否正常
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curl -s -m 5 --head http://www.google.com > /dev/null
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if [ $? -eq 1 ]; then
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    echo "$current_date - 外网连接异常！"
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    echo "$current_date - 更新订阅列表..."
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    lua /usr/share/passwall/subscribe.lua start cfg0f8b02 > /dev/null
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    if [ $? -eq 0 ]; then
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        echo "$current_date - 订阅列表更新成功！" >> passwall_sh_log.txt
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    else
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        echo "$current_date - 订阅列表更新失败！请检查服务器设置！" >> passwall_sh_log.txt
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        exit
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    fi
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else
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    echo "$current_date - 外网连接正常，退出脚本！" >> passwall_sh_log.txt
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fi
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exit