#!/bin/sh
#
# Nanjing Telecome Lan Network Connecter
#
# Copyright (c) 2005 datouxia <datouxia@gmail.com>
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the Free
# Software Foundation; either version 2 of the License, or (at your option) 
# any later version.
#
# if you support this project , Visit my site @ http://lis.dena.com.cn
#
echo "Nanjing Telecom Lan Network Ver 0.09 NewDream @ lis.dena.com.cn [GPL]"


# Infomation #
#---------------------------------------------------------------------#

#----Basic User Sets----
	
	LoginServerIP="10.27.1.81"
	Username="k00000000"        #Edit this blank as your Username
	Password="0000000"          #Edit this blank as your Password
	CheckLoginState="true"

#----Special System Fix----

	IsMACOS="false" #Only Support Login & Logout

#-----Advance User Sets----

	CheckOffLineAutoRestart="true"
	CheckPingHost="www.jsinfo.net"
	CheckPingTimes="2"
	DDNSService="true"
	DDNSHost="0000.2288.org"
	DDNSUsername="00000000"
	DDNSPassword="00000000"

#----Developer Sets----

	WebSuccSignal="webauthsucc"
	SimulateSystem="(compatible; MSIE 6.0; Windows 98)"
	OutPutTempFileName="newdream.tmp"
	CmdOutPutCookie=" -c "$OutPutTempFileName" "
	CurlProgram="curl"
	VirtualAloneMode="false"
	LoginResult="false"
	SystemRCFilelocation="/etc/rc.local"

# Functions #
#---------------------------------------------------------------------#
GetLoginInfo()
{
	if [ $VirtualAloneMode = "true" ]; then
		tmplogininfo=$($CurlProgram -q http://$LoginServerIP/servlet/scpservlet.CloseReqServlet -s -S -A "$SimulateSystem" -e "/index.jsp")
		loginip=$(echo $tmplogininfo|awk 'BEGIN{ FS="ClientIP="; }{ print $2 }'|awk 'BEGIN{ FS="\">"; }{ print $1 }')
	else
		if [ "$IsMACOS" = "true" ]; then
			loginip=$(ifconfig|awk '/inet/{print $2}'|grep '[0-9]\{3\}\.[0-9]\{3\}\.')
		else
			loginip=$(ifconfig|awk '{ print $2 }'|awk '/addr/{ print $1 }'|awk 'BEGIN{ FS=":"; }{ print $2;getline }')
		fi
	fi
}

LoginNetWork()
{
	loginresult=$($CurlProgram -q https://$LoginServerIP/servlet/scpservlet.UserDataReqLoginServlet -s -S -g$CmdOutPutCookie-k -A "$SimulateSystem" -e "/index.jsp" -d "id=$Username&password=$Password&ip=$loginip&ClientIP=&servicetype=201%2B&ipmode=1&LocalIP=")
}

OfflineNetWork()
{
	TmpVirtualAloneMode=$VirtualAloneMode	
	VirtualAloneMode="true"
	GetLoginInfo
	VirtualAloneMode=$TmpVirtualAloneMode
	offlineresult=$($CurlProgram -q http://$LoginServerIP/servlet/m00.logout -s -S -A "$SimulateSystem" -d "ClientIP=$loginip")
	echo "Offline Success"
}

GetAuthResult()
{
	authresult=$($CurlProgram -q http://$LoginServerIP/redirect.jsp -s -S -g -b $OutPutTempFileName -k -A "$SimulateSystem" -e "/servlet/scpservlet.UserDataReqLoginServlet"|awk 'BEGIN{ FS="/"; }/show/{ print $5 }'|awk 'BEGIN{ FS="."; }{ print $1 }')
     	if [ "$authresult" = "$WebSuccSignal" ]; then
		LoginResult="true"
		echo "Login Success"
     	else
		LoginResult="false"
		echo "Login Failure! Please check Account\Password\Using the router"
     	fi
}

CopyFile()
{
    	if [ -f "/usr/bin/newdream" ]; then
		echo "Main file existed,please use uninstall first"
    	else
		echo "Coping File"
		cp newdream /usr/bin/
		echo "OK"
		echo "Edit file for starting with system"
		rclocaltmpstr=$(cat $SystemRCFilelocation)
		tmpaddedstr="$rclocaltmpstr
/usr/bin/newdream"
		echo "$tmpaddedstr" > $SystemRCFilelocation
		echo "OK"
		echo "Install complete,Thanks for using."
    	fi
}

DeleteFile()
{
    	rm -f /usr/bin/newdream
    	sed -e '/\/usr\/bin\/newdream/d' $SystemRCFilelocation > $OutPutTempFileName
    	rm -f $SystemRCFilelocation
    	mv $OutPutTempFileName $SystemRCFilelocation
    	echo "Uninstall complete,Enjoy it."
}

ShowHelp()
{
    	echo "With no perfix , I will connect the network;"
	echo "-c (Check) I'll check the online condition for you."
    	echo "-i (Install) I'll setup myself for booting;"
    	echo "-u (Uninstall) I'll uninstall myself."
	echo "-o (Offline) I'll make offline from the network."
}

CheckOnline()
{
	PingResult=$(ping -c $CheckPingTimes $CheckPingHost 2>$OutPutTempFileName)
	PingResult=$(cat $OutPutTempFileName)
	rm -f $OutPutTempFileName
	if [ "$PingResult" = "" ]; then
		echo "Online"
	else
		echo "$PingResult"
		echo "Not Online"
		if [ "$CheckOfflineAutoRestart" = "true" ]; then
			Main
		fi
	fi
}

DDNSLogin()
{
	echo "Try to link $DDNSHost to $loginip"
	DDNSLoginInfo=$($CurlProgram -q -u$DDNSUsername:$DDNSPassword -s -S -g -A"$SimulateSystem" "http://members.3322.org/dyndns/update?system=dyndns&hostname=$DDNSHost&myip=$loginip&wildcard=YES")
	echo $DDNSLoginInfo
}

# Main Function #
#---------------------------------------------------------------------#
Main()
{
    	GetLoginInfo
    	echo "Login $Username @ $loginip"
    	if [ "$CheckLoginState" = "true" ]; then
		LoginNetWork
		GetAuthResult
		rm -f $OutPutTempFileName
    	else
		CmdOutPutCookie=" "
		LoginNetWork
		LoginResult="true"
		echo "Login Information has been sent yet."
    	fi
	if [ "$LoginResult" = "true" ]; then
		if [ "$DDNSService" = "true" ]; then
			DDNSLogin	
		fi
	else
		echo "Something wrong happed.I'll try DDNS function next time."
	fi
}

# Kernel #
#---------------------------------------------------------------------#
if [ "$1" = "" ]; then
	Main
else
	case $1 in
		"Help" | "-?" )
			ShowHelp
		;;
		"Install" | "-i" )
			CopyFile
		;;
		"Uninstall" | "-u" )
			DeleteFile
		;;
		"Check" | "-c" )
			CheckOnline
		;;
		"Offline" | "-o" )
			OfflineNetWork
		;;
		*)
			echo "Please type the -? prefix for more informations"
		;;
	esac
fi