proxy

#!/bin/bash
#use source or .(dot)
#Script_Path=$(dirname `which $0`) 
Script_Path="$(cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )" 
ini_path="${Script_Path}/proxy.ini"
#echo $ini_path

if [ ! -d "${Script_Path}/tmp" ]; then
    mkdir "${Script_Path}/tmp"
fi

if [ ! -e  "${ini_path}" ]; then
    echo "proxy.ini missing" 
    return 1
fi
conf=( `cat "${ini_path}"` )
if [ ${#conf} -lt 4 ]; then
    echo "proxy.ini error" 
    return 1
fi
addr=${conf[0]}:${conf[1]}@${conf[2]}:${conf[3]}

if [ $# -eq 0 ]; then
    export http_proxy="http://${addr}"
    export https_proxy="https://${addr}"
    export ftp_proxy="ftp://${addr}"
    echo "proxy setted at $addr"

elif [ "$1" = "stop" ]; then
    echo $1
    export http_proxy=
    export https_proxy=
    export ftp_proxy=
    echo "proxy stopped."

elif [ "$1" = "apt-on" ]; then
    echo $1
    tmp_path="${Script_Path}/tmp/apt.conf"
    echo -e "Acquire::http::proxy \"http://${addr}\";\n\
Acquire::https::proxy \"https://${addr}\";\n\
Acquire::ftp::proxy \"ftp://${addr}\";\n" > $tmp_path
    sudo cp $tmp_path /etc/apt/apt.conf
    echo "--apt-get proxy on."

elif [ "$1" = "apt-off" ]; then
    sudo rm /etc/apt/apt.conf
    echo "--file /etc/apt/apt.conf removed."

#fixed the "Hash Sum Mismatch" when it behind a proxy
elif [ "$1" = "apt-nocache-on" ]; then
    echo $1
    tmp_path="${Script_Path}/tmp/99fixbadproxy"
    echo -e "Acquire::http::Pipeline-Depth 0;\n\
Acquire::http::No-Cache true;\n\
Acquire::BrokenProxy true;\n" > $tmp_path
    sudo cp $tmp_path /etc/apt/apt.conf.d/99fixbadproxy
    echo "--add file 99fixbadproxy."

elif [ "$1" = "apt-nocache-off" ]; then
    sudo rm /etc/apt/apt.conf.d/99fixbadproxy
    echo "--file 99fixbadproxy removed."

else
    echo "--command wrong"
fi