Set System Proxy for OS X

sys_proxy

#!/bin/bash

wifi="Wi-Fi"
IP=127.0.0.1
PORT=7777

[[ $# -ne 1 ]] && echo "$0 http|pac|disable" && exit 1
flag=$1

function webproxy_set() {
    [[ $# -ne 1 ]] && return

    if [[ x$1 == x"on" ]]; then
        sudo networksetup -setwebproxy "$wifi" $IP $PORT
        sudo networksetup -setsecurewebproxy "$wifi" $IP $PORT
    else
        sudo networksetup -setwebproxystate "$wifi" off
        sudo networksetup -setsecurewebproxystate "$wifi" off
    fi
}

function pac_set() {
    [[ $# -ne 1 ]] && return

    if [[ x$1 == x"on" ]]; then
        sudo networksetup -setautoproxyurl "$wifi" http://$IP:$PORT/pac
    else
        sudo networksetup -setautoproxystate "$wifi" off
    fi
}

if [[ x$flag == x"http" ]]; then
    echo "Set http/https proxy"
    webproxy_set on
    pac_set off

elif [[ x$flag == x"pac" ]]; then
    echo "Set autoproxyurl as 'http://$IP:$PORT/pac'"
    webproxy_set off
    pac_set on
else
    echo "Disable all proxy"
    webproxy_set off
    pac_set off
fi