Auto change proxy for work and shadowsocks on MacOS

autoproxy.sh

#! /bin/bash

pushd ~/.config; 
curl -s -o proxyss.pac http://127.0.0.1:1089/proxy.pac
if [ "$?" = "0" ]; then
    cat proxyss.pac proxyw2.js > proxy.pac
    cat proxyw2_pre.js proxyw2.js > proxyw2.pac

    # find active network service and set autoproxy url
    services=$(networksetup -listnetworkserviceorder | grep 'Hardware Port')

    while read line; do
        sname=$(echo $line | awk -F  "(, )|(: )|[)]" '{print $2}')
        sdev=$(echo $line | awk -F  "(, )|(: )|[)]" '{print $4}')
        #echo "Current service: $sname, $sdev, $currentservice"
        if [ -n "$sdev" ]; then
            ifout="$(ifconfig $sdev 2>/dev/null)"
            echo "$ifout" | grep 'status: active' > /dev/null 2>&1
            rc="$?"
            if [ "$rc" -eq 0 ]; then
                currentservice="$sname"
                currentdevice="$sdev"
                currentmac=$(echo "$ifout" | awk '/ether/{print $2}')

                networksetup -setautoproxyurl "$currentservice" "http://127.0.0.1:1989/proxy${1}.pac"
                echo "Set autoproxy url for $currentservice, $currentdevice, $currentmac"
            fi
        fi
    done <<< "$(echo "$services")"

    if [ -z "$currentservice" ]; then
        >&2 echo "Could not find active network service"
        exit 1
    else
        nohup python -m SimpleHTTPServer 1989 > /dev/null 2>&1 &
        echo "PAC file serving at http://127.0.0.1:1989/proxy${1}.pac"
    fi
else
    echo "Set Shadowsocks to PAC mod at first."
fi
popd

proxyw2.js

;var w2Proxy = "PROXY 127.0.0.1:8899; DIRECT;";

var w2Rules = [
  ".baidu.cn",
  ".qq.com",
  ".taobao.com"
]


var w2Matcher = new CombinedMatcher();

for (var i = 0; i < w2Rules.length; i++) {
    w2Matcher.add(Filter.fromText(w2Rules[i]));
}

function FindProxyForURL(url, host) {
	// return w2Proxy;
  if (
    shExpMatch(host, '*.direct.com')
    || shExpMatch(host, 'must.direct.com')
  ) {
    return direct;
  }

  if (w2Matcher.matchesAny(url, host) instanceof BlockingFilter) {
    return w2Proxy;
  }

  if (defaultMatcher.matchesAny(url, host) instanceof BlockingFilter) {
    return proxy;
  }
  
  
  return w2Proxy;

  //return direct;
}