Linux 中快速开启/关闭代理

在 ~/.bashrc 中添加以下函数，用于快速开启、关闭、测试代理。

function echo_error() {
        echo -e "\033[41;37m $* \033[0m"
}


function enableproxy() {
        export http_proxy="http://192.168.110.200:7897"
        export https_proxy="http://192.168.110.200:7897"
        export HTTP_PROXY="$http_proxy"
        export HTTPS_PROXY="$https_proxy"

        echo "proxy enabled: $http_proxy"
}

function disableproxy() {
        unset http_proxy
        unset https_proxy
        unset HTTP_PROXY
        unset HTTPS_PROXY

        echo 'proxy disabled.'
}

function testproxy() {
    if [ -z "$http_proxy" ] || [ -z "$https_proxy" ]; then
        echo_error "proxy is incomplete."
        echo_error "please run: ep or enableproxy"
        return 1
    fi
    echo "testing proxy: $http_proxy"
    if curl -s -I -x "$http_proxy" --connect-timeout 5 --max-time 10 https://www.google.com >/dev/null; then
        echo -e "\033[42;37m proxy ok. \033[0m"
    else
        echo -e "\033[41;37m proxy failed. \033[0m"
        return 1
   fi
}


alias ep='enableproxy'
alias dp='disableproxy'
alias tp='testproxy'