写了个 shadowsocks 一键安装脚本

从 WordPress 迁移至 Ghost 时把代码样式都给弄乱了，换行全都被吞掉了，不过我也懒得再去修复就是了（反正原来的代码也很屎）。

窝最近由于一些需求所以经常要在 VPS 上安装 shadowsocks，但是每一次都按照窝以前写的那篇文章那样一个个配置真是有够麻烦，虽然别人早就写了很多比窝这个更好的脚本，但是感觉比较臃肿，比较窝的需求也就那么点。正好可以学习学习写 shell 嘛~ (｀･ω･)

注意，这个脚本只适用于 Ubuntu，而且窝几乎一点排错/DEBUG 代码都没有写，如果你真的想用那就用吧（没错写这篇文只是为了水一发 20150715224933 并不觉得有人会用。

下面贴代码：

#!/bin/bash
# ==================================
#   AUTHOR: xxx
#   NOTE: I HAVEN'T WRITE ANY DEBUG CODE IN THIS SHELL,
#   IF ANY ERROR RAISES,UMM,JUST LET IT GO
#   SYSTEM REQUIRED: ONLY FOR UBUNTU
# ==================================
echo ""
echo "======================================="
echo "= NOW START TO INSTALL SHADOWSOCKS    ="
echo "= NOTE: PLEASE RUN THIS SHELL AS ROOT ="
echo "======================================="
echo ""
echo "Press any key to install or Press Ctrl+C to cancel"

# PORT
echo "Please input the port for shadowsocks [1-65535]:"
read -p "(Default port: 62100):" ss_port
[ -z "$ss_port" ] && ss_port="62100"
if [ $ss_port -ge 1 ] && [ $ss_port -le 65535 ]; then
  echo ""
  echo "===================================="
  echo "= port = $ss_port "
  echo "===================================="
  echo ""
  break
else
  echo "NOT AVAILABLE PORT NUMBER"
fi

# PASSWORD
echo "Please input the password for shadowsocks:"
read -p "(Default password: prinzeugen.net):" ss_passwd
[ -z "$ss_passwd" ] && ss_passwd="prinzeugen.net"
echo ""
echo "===================================="
echo "= password : $ss_passwd "
echo "===================================="
echo ""

# ENABLE FAST OPEN
echo ""
echo "Do you want to enable fast_open?(true/false)"
read -p "(Default: false):" ss_fastopen
[ -z "$ss_fastopen" ] && ss_open="false"

# INSTALL DEPENDENCIES
apt-get update -y apt-get install python-pip supervisor -y

# CONFIG SHADOWSOCKS.JSON
cat > /etc/shadowsocks.json<<-EOF
{
  "server": "::",
  "server_port": ${ss_port},
  "local_port": 1080,
  "password": "${ss_passwd}",
  "timeout": 300,
  "method": "rc4-md5",
  "fast_open": ${ss_fastopen}
}
EOF

# CONFIG SUPERVISOR
cat > /etc/supervisor/conf.d/shadowsocks.conf<<-EOF
[program:shadowsocks]
command=ssserver -c /etc/shadowsocks.json
autorestart=true
user=nobody
EOF
echo "ulimit -n 51200" >> /etc/default/supervisor

# SET IPTABLES
iptables -I INPUT -p tcp -m tcp --dport ${ss_port} -j ACCEPT
iptables-save
iptables restart
# INSTALL SHADOWSOCKS
pip install shadowsocks
# START SHADOWSOCKS service
supervisor start
supervisorctl reload
supervisorctl restart shadowsocks

echo ""
echo "===================================="
echo "= INSTALLATION DONE ="
echo "= ENJOY IT ="
echo "===================================="
echo ""