#!/bin/sh

check_nodejs_install(){
    if ! node -v
    then
		curl -sL https://rpm.nodesource.com/setup_12.x | sudo bash -
        sudo yum install -y nodejs
        sudo yum install -y gcc-c++ make
        sudo npm install -g yarn
    else
        echo "nodejs installed"
    fi
}

random() {
	tr </dev/urandom -dc A-Za-z0-9 | head -c5
	echo
}

array=(1 2 3 4 5 6 7 8 9 0 a b c d e f)
gen64() {
	ip64() {
		echo "${array[$RANDOM % 16]}${array[$RANDOM % 16]}${array[$RANDOM % 16]}${array[$RANDOM % 16]}"
	}
	echo "$1:$(ip64):$(ip64):$(ip64):$(ip64)"
}
install_3proxy() {
    echo "installing 3proxy"
    URL="https://github.com/z3APA3A/3proxy/archive/3proxy-0.8.6.tar.gz"
    wget -qO- $URL | bsdtar -xvf-
    cd 3proxy-3proxy-0.8.6
    make -f Makefile.Linux
    mkdir -p /usr/local/etc/3proxy/{bin,logs,stat}
    cp src/3proxy /usr/local/etc/3proxy/bin/
    cp ./scripts/rc.d/proxy.sh /etc/init.d/3proxy
    chmod +x /etc/init.d/3proxy
    chkconfig 3proxy on
    cd $WORKDIR
}
gen_3proxy() {
    cat <<EOF
daemon
maxconn 1000
nscache 65536
timeouts 1 5 30 60 180 1800 15 60
setgid 65535
setuid 65535
flush
auth none


$(awk -F "/" '{print "auth none\n" \
"proxy -6 -n -a -p" $4 " -i" $3 " -e"$5"\n" \
"flush\n"}' ${WORKDATA})
EOF
}
# gen_3proxy() {
#     cat <<EOF
# daemon
# maxconn 1000
# nscache 65536
# timeouts 1 5 30 60 180 1800 15 60
# setgid 65535
# setuid 65535
# flush
# auth strong

# users $(awk -F "/" 'BEGIN{ORS="";} {print $1 ":CL:" $2 " "}' ${WORKDATA})

# $(awk -F "/" '{print "auth strong\n" \
# "allow " $1 "\n" \
# "proxy -6 -n -a -p" $4 " -i" $3 " -e"$5"\n" \
# "flush\n"}' ${WORKDATA})
# EOF
# }

gen_proxy_file_for_user() {
    cat >proxy.txt <<EOF
$(awk -F "/" '{print $3 ":" $4}' ${WORKDATA})
EOF
}

upload_proxy() {
    local PASS=$(random)
    zip --password $PASS proxy.zip proxy.txt
    URL=$(curl -s --upload-file proxy.zip https://transfer.sh/proxy.zip)

    echo "Proxy is ready! Format IP:PORT:LOGIN:PASS"
    echo "Download zip archive from: ${URL}"
    echo "Password: ${PASS}"

}
gen_data() {
    seq $FIRST_PORT $LAST_PORT | while read port; do
        echo "usr$(random)/pass$(random)/$IP4/$port/$(gen64 $IP6)"
    done
}

gen_iptables() {
    cat <<EOF
    $(awk -F "/" '{print "iptables -I INPUT -p tcp --dport " $4 "  -m state --state NEW -j ACCEPT"}' ${WORKDATA}) 
EOF
}

gen_ifconfig() {
    cat <<EOF
$(awk -F "/" '{print "ifconfig eth0 inet6 add " $5 "/64"}' ${WORKDATA})
EOF
}


echo "installing apps"
yum -y install gcc net-tools bsdtar zip >/dev/null
# currentDir="$(pwd)"
install_3proxy
rm -rf /home/proxy-installer
echo "working folder = /home/proxy-installer"
WORKDIR="/home/proxy-installer"
WORKDATA="${WORKDIR}/data.txt"
WORKNODE="${WORKDIR}/send-file.js"
mkdir $WORKDIR && cd $_

IP4=$(curl -4 -s icanhazip.com)
IP6=$(curl -6 -s icanhazip.com | cut -f1-4 -d':')

echo "Internal ip = ${IP4}. Exteranl sub for ip6 = ${IP6}"

echo "How many proxy do you want to create? Example 500"
read COUNT

FIRST_PORT=10000
LAST_PORT=$(($FIRST_PORT + $COUNT))

gen_data >$WORKDIR/data.txt
gen_iptables >$WORKDIR/boot_iptables.sh
gen_ifconfig >$WORKDIR/boot_ifconfig.sh
chmod +x ${WORKDIR}/boot_*.sh /etc/rc.local

gen_3proxy >/usr/local/etc/3proxy/3proxy.cfg

cat >>/etc/rc.local <<EOF
bash ${WORKDIR}/boot_iptables.sh
bash ${WORKDIR}/boot_ifconfig.sh
ulimit -n 10048
service 3proxy start
EOF

bash /etc/rc.local

gen_proxy_file_for_user

upload_proxy