stunnel-client

#!/bin/bash

# giving user passwordless sudo privileges
USER=`whoami`
MYPATH=$(cat /etc/passwd|grep $USER|awk -F: ‘{print $6}‘)

# need to be run as root
if [[ "$EUID" -ne 0 ]]; then
    echo "This script must be run as root"
    exit 1
fi

#parse args
while getopts "c:i:p:I:P:z:h" arg
do
    case $arg in
        c) CONFIG=$OPTARG
           if [[ ! -f "$CONFIG" ]]; then
               echo " unvalid arg for -c, ple make sure the config file is exist "
               exit 1
           fi
           ;;
        i) PROXY_IP=${OPTARG:-127.0.0.1} ;;
        p) PROXY_PORT=${OPTARG:-8888} ;;
        I) SERVER_IP=$OPTARG ;;
        P) SERVER_PORT=$OPTARG ;;
        z) ZTE_PROXY=${OPTARG:-proxysh.zte.com.cn}  ;;
        h)
           echo " -------------args for setting up stunnel--------------------"
           echo " -c: client certification"
           echo " -i: proxy ip, default to localhost
           echo " -p: proxy port, default to 8888"
           echo " -I: server ip
           echo " -P: server port listened in server"
           echo " -z: zte proxy, need to be consistent with system network set"
           echo "-------------------------------------------------------------"
           exit 0
           ;;
        ?) echo "unvalid arg"
           exit 1
           ;;
    esac
done

if [[ ! $CONFIG || ! $SERVER_IP || ! $SERVER_PORT ]]; then
    echo " need args, ple use -h for help..."
    exit 1
fi

HTTP_PROXY=http://$PROXY_IP:$PROXY_PORT
NO_PROXY=localhost,127.0.0.1,10.*.*.*/8

# use internal apt-source
INTER_APT_SOURCE=10.62.99.232

function use_internal_apt_source {
    sudo mv /etc/apt/sources.list /etc/apt/sources.list.bk
    sudo cat <<EOF >/etc/apt/sources.list
deb http://$INTER_APT_SOURCE/common/ubuntu trusty main restricted multiverse universe

deb http://$INTER_APT_SOURCE/common/ubuntu trusty-security main restricted multiverse universe

deb http://$INTER_APT_SOURCE/common/ubuntu trusty-updates main restricted multiverse universe

deb http://$INTER_APT_SOURCE/common/ubuntu trusty-proposed main restricted multiverse universe

deb http://$inter_apt_source/common/ubuntu trusty-backports main restricted multiverse universe
EOF

    sudo apt-get update
}


# if use internal apt-source to install stunnel,
# after install stunnel successfully, ple change back original apt-source
function change_back_apt_source {
    sudo mv /etc/apt/sources.list.bk /etc/apt/sources.list
}

# (optional) if can not connect to wwww, user internal apt-source
use_internal_apt_source

sudo apt-get install -y stunnel
# (optional) no matter if stunnel package is installed, change back to origin apt-source
change_back_apt_source


sudo cat << EOF > /etc/stunnel/client.conf
chroot = /var/lib/stunnel4/
setuid = stunnel4
setgid = stunnel4
pid = /stunnel4-client.pid
client = yes
cert = /etc/stunnel/client.pem
sslVersion = SSLv3

socket = l:TCP_NODELAY=1
socket = r:TCP_NODELAY=1

[squid]
accept = $PROXY_PORT
protocol = connect
protocolHost = $SERVER_IP:$SERVER_PORT
connect = $ZTE_PROXY:80
EOF


sudo cp $CONFIG /etc/stunnel/client.pem
sudo sed -i -r "s/ENABLED=0/ENABLED=1/g" /etc/default/stunnel4

# restart stunnel
sudo service stunnel4 restart

#config proxy: append to $MYPATH/.profile
cat <<EOF >> /$MYPATH/.profile
export http_proxy=$HTTP_PROXY
export https_proxy=$HTTP_PROXY
export no_proxy=$NO_PROXY
EOF

sudo cat <<EOF > /etc/apt/apt.conf
Acquire::http::proxy \"$HTTP_PROXY/\";
Acquire::https::proxy \"$HTTP_PROXY/\";
EOF

source $MYPATH/.profile
sudo apt-get update