#!/bin/bash
######系統配合
#下載ISO檔
#https://ftp.ubuntu-tw.org/ubuntu-releases/26.04.1/ 安裝
######鄭亮星 jls@mail.jls.idv.tw , jls550225@gmail.com , jls@acfs.tw
##安裝ADSL播號
clear
while [ "$yn" != "yes" -a "$yn" != "YES" ]
do
	read -p "請輸入 IP(例如 168.168.168.168 ):" IPaddress
	read -p "請輸入播接帳號(例 71234567@ip.hinet.net ):" AdslName
	read -p "請輸入播接密碼(例如 password ):" Password
	read -p "請輸入您的網站名稱(例如 dns.jls.idv.tw ):" HostName
	read -p "請輸入(MySQL)資料庫密碼(例如 password ):" Mysqlpasswd
	read -p "請輸入系統通知郵件信箱(例如 jls@jls.idv.tw ):" Email
	clear
	echo "IPaddress=$IPaddress" > /root/setup.txt
	echo "AdslName=$AdslName" >> /root/setup.txt
	echo "Password=$Password" >> /root/setup.txt
	echo "HostName=$HostName" >> /root/setup.txt
	echo "Mysqlpasswd=$Mysqlpasswd" >> /root/setup.txt
	echo "Email=$Email" >> /root/setup.txt
	echo "您輸入的 IP 是: $IPaddress"
	echo "您輸入的播接帳號是: $AdslName"
	echo "您輸入的播接密碼是: $Password"
	echo "您輸入的網站名稱是: $HostName"
	echo "您輸入的(MySQL)資料庫密碼是: $Mysqlpasswd"
	echo "您輸入的系統通知郵件信箱是: $Email"
	read -p "以上輸入是否正確？ 正確請輸入 yes 或 YES，否則按任一鍵繼續輸入:" yn
	clear
done
ETH0=$(ls /proc/net/dev_snmp6 |awk '{ print $1 }' |sed -n '1p')
ETH1=$(ls /proc/net/dev_snmp6 |awk '{ print $1 }' |sed -n '2p')
DATE=$(date "+%Y%m%d%H")
rm -rf /etc/netplan/*
cat > /etc/netplan/00-installer-config.yaml << EOF
# This is the network config written by 'subiquity'
network:
  ethernets:
    $ETH0:
      dhcp4: false
      addresses: [$IPaddress/29]
     # gateway4: 
      nameservers:
        addresses: [8.8.8.8, 168.95.192.1, 1.1.1.1, 168.95.1.1]
  version: 2
EOF
if [ "$ETH1" != "" ] && [ "$ETH1" != "lo" ]; then
cat >> /etc/netplan/00-installer-config.yaml << EOF
# This is the network config written by 'subiquity'
network:
  ethernets:
    $ETH1:
      dhcp4: false
      addresses: [192.168.1.1/24]
#      dhcp6: false
#      addresses: [fc01:192:168:1::1/64]
  version: 2
EOF
fi
timedatectl set-timezone Asia/Taipei
hostnamectl set-hostname $HostName
cp -arf /etc/hosts /etc/hosts-$DATE
cat >> /etc/hosts << EOF
$IPaddress     $HostName
EOF

cp -arf /etc/ppp/peers/provider /etc/ppp/peers/provider-$DATE
cat >  /etc/ppp/peers/provider << EOF
user "$AdslName"
plugin rp-pppoe.so
$ETH0
noipdefault
defaultroute
hide-password
lcp-echo-interval 20
lcp-echo-failure 3
noauth
persist
maxfail 0
mtu 1452
mru 1452
noaccomp
default-asyncmap
+ipv6 ipv6cp-use-ipaddr
linkname pppoe
EOF

cat > /etc/ppp/peers/dsl-provider << EOF
user "$AdslName"
pty "/usr/sbin/pppoe -I $ETH0 -T 80 -m 1452"
noipdefault
usepeerdns
defaultroute
hide-password
lcp-echo-interval 20
lcp-echo-failure 3
connect /bin/true
noauth
persist
mtu 1492
noaccomp
default-asyncmap
+ipv6 ipv6cp-use-ipaddr
EOF
chmod 640  /etc/ppp/peers/dsl-provider
cp -arf /etc/ppp/pap-secrets /etc/ppp/pap-secrets-$DATE
cat >> /etc/ppp/pap-secrets << EOF
$AdslName	*	"$Password"	*	
EOF

cat > /usr/lib/systemd/system/adsl-ppp.service << EOF
[Unit]
BindsTo=sys-subsystem-net-devices-$ETH0.device
After=sys-subsystem-net-devices-$ETH0.device

[Service]
ExecStartPre=/sbin/ip link set mtu 1508 dev $ETH0
#ExecStartPre=/sbin/ip link set up dev $ETH0
ExecStart=/usr/sbin/pppd call dsl-provider
Type=forking
SuccessExitStatus=5
PIDFile=/run/ppp0.pid
[Install]
WantedBy=sys-subsystem-net-devices-$ETH0.device
EOF

cat > /usr/sbin/autoconnect.sh << EOF
#!/bin/bash
/usr/bin/pon dsl-provider
sync;sync
/usr/bin/sleep 5
/usr/bin/firewall.sh
EOF

chmod a+x /usr/sbin/autoconnect.sh
cat >> /var/spool/cron/crontabs/root << EOF
*/1 * * * * /usr/sbin/ifconfig ppp0 > /dev/null 2>&1 || /usr/sbin/autoconnect.sh > /dev/null 2>&1
EOF

systemctl daemon-reload
systemctl enable adsl-ppp.service
sync;sync;reboot
exit 0