#!/bin/sh
# Skripta za automatsko podesavanje sistema
# $Id: unconfigured.sh,v 1.16 2003/12/21 00:13:21 kreator Exp kreator $

# set -e

# postavi sve varijable odmah na pocetku
CARNET_HOSTNAME=""
CARNET_DOMAINNAME=""
CARNET_IP=""
CARNET_GATEWAYIP=""
CARNET_NETMASK="255.255.255.0"

ime_stroja () {
  tempfile=`tempfile 2>/dev/null` || tempfile=/tmp/test$$
  trap "rm -f $tempfile" 0 1 2 5 15

  $DIALOG --cancel-label "Nazad" --cr-wrap \
          --title "Naziv racunala" \
          --backtitle "$VERSION" \
          --inputbox "
Upisite ime racunala (bez domene).
Npr. zagreb ako je racunalo zagreb.ffak.hr

" 11 52 "$CARNET_HOSTNAME" 2>$tempfile 

  retval=$?

  if [ $retval -ne 0 ]; then
    DALJE=ime_stroja
  else
    DALJE=domena

    cat $tempfile > /etc/hostname
    CARNET_HOSTNAME=`cat $tempfile`

    cp /dev/null /etc/network/ifstate
    hostname --file /etc/hostname >/dev/null
  fi
}

domena() {
  tempfile=`tempfile 2>/dev/null` || tempfile=/tmp/test$$
  trap "rm -f $tempfile" 0 1 2 5 15

  $DIALOG --cancel-label "Nazad" --cr-wrap \
          --title "Domena" \
          --backtitle "$VERSION" \
          --inputbox "
Upisite vasu domenu.
Npr. ffak.hr, srce.hr, itd.

" 11 52 "$CARNET_DOMAINNAME" 2>$tempfile 

  retval=$?

  if [ $retval -ne 0 ]; then
    DALJE=ime_stroja
  else
    DALJE=adresa_stroja

    CARNET_DOMAINNAME=`cat $tempfile`
    echo "$CARNET_HOSTNAME.$CARNET_DOMAINNAME" > /etc/mailname
  fi
}

adresa_stroja () {
  tempfile=`tempfile 2>/dev/null` || tempfile=/tmp/test$$
  trap "rm -f $tempfile" 0 1 2 5 15

  $DIALOG --cancel-label "Nazad" --cr-wrap \
          --title "IP adresa stroja" \
          --backtitle "$VERSION" \
          --inputbox "
Upisite IP adresu vaseg posluzitelja.
Npr. 161.53.178.3
Napomena: .3 je CARNetova standardna adresa za cvorno racunalo.

" 13 52 "$CARNET_IP" 2>$tempfile 

  retval=$?

  if [ $retval -ne 0 ]; then
    DALJE=domena
  else
    DALJE=cn_netmask

    CARNET_IP=`cat $tempfile`
  fi
}

cn_netmask () {
  tempfile=`tempfile 2>/dev/null` || tempfile=/tmp/test$$
  trap "rm -f $tempfile" 0 1 2 5 15

  $DIALOG --cancel-label "Nazad" --cr-wrap \
          --title "Mrezna maska" \
          --backtitle "$VERSION" \
          --inputbox "
Upisite mreznu masku (netmask).
Npr. $CARNET_NETMASK

" 11 52 "$CARNET_NETMASK" 2>$tempfile

  retval=$?

  if [ $retval -ne 0 ]; then
    DALJE=adresa_stroja
  else
    DALJE=cn_gateway

    CARNET_NETMASK=`cat $tempfile`
fi
}

cn_gateway () {
  tempfile=`tempfile 2>/dev/null` || tempfile=/tmp/test$$
  trap "rm -f $tempfile" 0 1 2 5 15

  if [ -z "$CARNET_GATEWAYIP" ]; then
    CARNET_GATEWAYIP=`echo $CARNET_IP | perl -pe 's/\d+$/1/'`
  fi

$DIALOG --cancel-label "Nazad" --cr-wrap \
        --title "IP adresa gateway stroja" \
        --backtitle "$VERSION" \
        --inputbox "
Upisite IP adresu gateway racunala, onoga preko
kojega ovo racunalo (i ostatak mreze) izlazi na
Internet.
Npr. $CARNET_GATEWAYIP

" 13 52 "$CARNET_GATEWAYIP" 2>$tempfile

  retval=$?

  if [ $retval -ne 0 ]; then
    DALJE=cn_netmask
  else
    DALJE=cn_summary

    CARNET_GATEWAYIP=`cat $tempfile`
  fi
}

cn_summary () {
  $DIALOG --aspect 6 --cr-wrap \
          --title "Potvrda konfiguracije" \
          --backtitle "$VERSION" \
          --yesno "
Mrezne postavke su slijedece:

Naziv racunala..... $CARNET_HOSTNAME
Domena............. $CARNET_DOMAINNAME
IP adresa.......... $CARNET_IP
Netmask............ $CARNET_NETMASK
Gateway............ $CARNET_GATEWAYIP

Da li su ovo tocne postavke? (Da/Ne)
 
" 15 52

  retval=$?

  if [ $retval -ne 0 ]; then
    DALJE=ime_stroja
  else
    DALJE=nista
  fi
}

rootpass () {
  tempfile=`tempfile 2>/dev/null` || tempfile=/tmp/test$$
  tempfile2=`tempfile 2>/dev/null` || tempfile=/tmp/test$$
  trap "rm -f $tempfile $tmpfile2" 0 1 2 5 15

  $DIALOG --nocancel \
          --cr-wrap \
          --title "Administratorska lozinka" \
          --backtitle "$VERSION" \
          --passwordbox "
Upisite novu root lozinku:
(Napomena: lozinka se ne vidi na ekranu)

" 11 52 "$ROOT_PASSWD" 2>$tempfile 
  
  retval=$?

  if [ $retval -ne 0 ]; then
    DALJE=rootpass
  else

    $DIALOG --nocancel \
            --cr-wrap \
            --title "Administratorska lozinka (ponovo)" \
            --backtitle "$VERSION" \
            --passwordbox "
Upisite jos jednom root lozinku:
(Napomena: lozinka se ne vidi na ekranu)

" 11 52 "$ROOT_PASSWD" 2>$tempfile2

    retval=$?

    if [ $retval -ne 0 ]; then
      DALJE=rootpass
    else
      DALJE=nista
      ROOTPW=`cat $tempfile`
      ROOTPW2=`cat $tempfile2`

      if [ $ROOTPW != $ROOTPW2 ]; then
        DALJE=rootpass
      else

      cat > $tempfile <<EOF
#!/usr/bin/perl
\$password = $ROOTPW;
for(0 .. 7) {
    \$salt .= join '', ('.', '/', 0..9,'A'..'Z', 'a'..'z')[rand 64];
} 
\$password = crypt(\$password, '\$1\$' . \$salt . '\$');
print \$password;
EOF
        ROOTPW=`perl -- $tempfile`
        if [ ! -z "$ROOTPW" ]; then
          usermod -p "$ROOTPW" root
        else
          DALJE=rootpass
        fi
      fi
    fi
  fi
}

# glavni dio

VERSION="CARNet Linux 2.0 (Debian sarge)"
DIALOG=${DIALOG=dialog}

[ -f /etc/UNCONFIGURED ] || exit 0

$DIALOG --aspect 6 --cr-wrap \
        --title "Dobrodosli!" \
        --backtitle "$VERSION" \
        --msgbox "
Instalirali ste CARNetovu distribuciju Linuxa.

Preostaje vam odgovoriti na nekoliko pitanja koja ce
omoguciti da se posluzitelj ispravno konfigurira. Pri
unosu teksta rade tipke za brisanje, a imat cete i
mogucnost da se vratite na prethodne ekrane i ispravite
unos.

Pritisnite Enter za nastavak.

" 0 0

DALJE=ime_stroja

while [ "$DALJE" != "nista" ]
do $DALJE
done

$DIALOG --aspect 6 --cr-wrap \
        --title "Informacije!" \
        --backtitle "$VERSION" \
        --infobox "
Molimo pricekajte dok se vas sistem konfigurira...
  
" 0 0

# Sad imamo sve podatke, mozemo puniti fajlove

# razlicite sistemske postavke..
CARNET_LOCALNET=`/usr/bin/ipsc $CARNET_IP/$CARNET_NETMASK | awk '/Network address:/ { print $3 }'` 

cat > /etc/networks <<EOF
localnet $CARNET_LOCALNET
EOF

cat > /etc/hosts <<EOF
# /etc/hosts - names & shortcuts to various hosts
127.0.0.1       localhost.$CARNET_DOMAINNAME localhost
$CARNET_IP      $CARNET_HOSTNAME.$CARNET_DOMAINNAME $CARNET_HOSTNAME
EOF

cat > /etc/resolv.conf <<EOF
search $CARNET_DOMAINNAME
nameserver 127.0.0.1
nameserver 161.53.2.70
EOF

cat > /etc/network/interfaces <<EOF
# /etc/network/interfaces -- configuration file for ifup(8), ifdown(8)
auto lo eth0
iface lo inet loopback
iface eth0 inet static
  address $CARNET_IP
  network $CARNET_LOCALNET
  netmask $CARNET_NETMASK
EOF

if [ ! -z "$CARNET_GATEWAYIP" ]; then
cat >> /etc/network/interfaces <<EOF
  gateway $CARNET_GATEWAYIP
EOF
fi

# apache
mkdir -p /home/httpd/htdocs
ln -sf /usr/lib/cgi-bin /home/httpd/cgi-bin
cp /etc/apache/httpd.conf /etc/apache/httpd.conf.$$
sed -e "s:^[[:space:]]*ServerName.*:ServerName www.$CARNET_DOMAINNAME:g;"\
"s:^[[:space:]]*ServerAdmin.*:ServerAdmin www@$CARNET_DOMAINNAME:g;"\
"s,^[[:space:]]*NameVirtualHost.*,NameVirtualHost $CARNET_IP:80,g;"\
"s,^[[:space:]]*<VirtualHost.*,<VirtualHost $CARNET_IP:80>,g" \
  /etc/apache/httpd.conf.$$ > /etc/apache/httpd.conf
rm -f /etc/apache.httpd.conf.$$
rm -f /etc/apache/ssl.key/server.key \
  /etc/apache/ssl.crt/server.crt \
  /etc/apache/ssl.key/ca.key \
  /etc/apache/ssl.crt/ca.crt
dpkg-reconfigure apache-cn >/dev/null 2>&1
/etc/init.d/apache stop >/dev/null 2>&1

# bind
CARNET_REV=`echo $CARNET_IP | awk -F. '{ print $3 "." $2 "." $1 ".in-addr.arpa" }'`
BROJ=`echo $CARNET_IP | cut -d. -f4`
SERNO=`date +%Y%m%d01`
cat >> /etc/bind/named.conf.local <<EOF
zone "$CARNET_DOMAINNAME" in {
        type master;
        file "/etc/bind/hosts.db";
};

zone "$CARNET_REV" in {
        type master;
        file "/etc/bind/hosts.rev";
};
EOF

cat > /etc/bind/hosts.db <<EOF
\$TTL 86400
@  SOA  $CARNET_HOSTNAME  hostmaster.$CARNET_HOSTNAME  (
   $SERNO   ; Serial
   28800    ; Refresh
   7200     ; Retry
   604800   ; Expire
   86400 )  ; Minimum
  NS  $CARNET_HOSTNAME
  NS  bjesomar.srce.hr.
  A   $CARNET_IP
localhost   A       127.0.0.1
bindmaster  CNAME   $CARNET_HOSTNAME
dns         CNAME   $CARNET_HOSTNAME
www         CNAME   $CARNET_HOSTNAME
proxy       CNAME   $CARNET_HOSTNAME
mail        CNAME   $CARNET_HOSTNAME
smtp        CNAME   $CARNET_HOSTNAME
pop         CNAME   $CARNET_HOSTNAME
ftp         CNAME   $CARNET_HOSTNAME
ntp         CNAME   $CARNET_HOSTNAME
$CARNET_HOSTNAME      A     $CARNET_IP
$CARNET_DOMAINNAME.   MX    5   $CARNET_HOSTNAME
EOF

BROJ=`echo $CARNET_IP | cut -d. -f4`

cat > /etc/bind/hosts.rev <<EOF
\$TTL 86400
@  SOA  $CARNET_HOSTNAME  hostmaster.$CARNET_HOSTNAME  (
    $SERNO       ; Serial
    28800   ; Refresh
    7200    ; Retry
    604800  ; Expire
    86400 ) ; Minimum
  NS  $CARNET_HOSTNAME.$CARNET_DOMAINNAME.
  NS  bjesomar.srce.hr.

$BROJ   PTR   $CARNET_HOSTNAME.$CARNET_DOMAINNAME.
EOF

# IRC klijenti
mkdir -p /etc/irc
echo "irc.carnet.hr" > /etc/irc/servers

# sendmail
cp /etc/mail/sendmail.mc /etc/mail/sendmail.mc.$$
sed -e "s:^Cw.*:Cw$CARNET_HOSTNAME.$CARNET_DOMAINNAME:g;"\
"s:^MASQUERADE_AS.*:MASQUERADE_AS($CARNET_DOMAINNAME):g" \
  /etc/mail/sendmail.mc.$$ > /etc/mail/sendmail.mc
/usr/share/sendmail/update_sendmail > /dev/null
echo $CARNET_DOMAINNAME > /etc/mail/relay-domains
cat > /etc/mail/local-host-names <<EOF
$CARNET_DOMAINNAME
$CARNET_HOSTNAME
$CARNET_HOSTNAME.$CARNET_DOMAINNAME
EOF

# ssh
rm -f /etc/ssh/ssh_host_*key
ssh-keygen -q -f /etc/ssh/ssh_host_key -N '' -t rsa1
ssh-keygen -q -f /etc/ssh/ssh_host_rsa_key -N '' -t rsa
ssh-keygen -q -f /etc/ssh/ssh_host_dsa_key -N '' -t dsa

# mysql
MYSQL="/usr/sbin/mysqld --bootstrap --user=mysql --skip-grant-tables  --skip-bdb --skip-innodb"
echo -e "USE mysql;\n" \
  "UPDATE user SET host='$CARNET_HOSTNAME' WHERE host='debian';\n" | \
  $MYSQL 1>/dev/null 2>&1
cp /etc/hosts.allow /etc/hosts.allow.$$
sed -e "s,mysqld:.*,mysqld: .$CARNET_DOMAINNAME 127.0.0.1,g" \
  /etc/hosts.allow.$$ > /etc/hosts.allow
rm -f /etc/hosts.allow.$$

# mrtg
cp /etc/mrtg.cfg /etc/mrtg.cfg.$$
sed -e "s:debian:$CARNET_HOSTNAME:g" /etc/mrtg.cfg.$$ > /etc/mrtg.cfg
rm -f /etc/mrtg.cfg.$$

# amavis
cp /etc/amavis/amavisd.conf /etc/amavis/amavisd.conf.$$
sed -e "s:^\$mydomain.*:\$mydomain = '$CARNET_DOMAINNAME'\;:g" \
  /etc/amavis/amavisd.conf.$$ > /etc/amavis/amavisd.conf
rm -f /etc/amavis/amavisd.conf.$$

# libnet
cat > /etc/libnet.cfg <<EOF
{
        nntp_hosts => [ qw {news.carnet.hr} ],
        snpp_hosts => [ qw {} ],
        pop3_hosts => [ qw {pop3.$CARNET_DOMAINNAME} ],
        smtp_hosts => [ qw {$CARNET_HOSTNAME.$CARNET_DOMAINNAME} ],
        ph_hosts => [ qw {} ],
        daytime_hosts => [ qw {$CARNET_HOSTNAME.$CARNET_DOMAINNAME} ],
        time_hosts => [ qw {161.53.2.70} ],
        inet_domain => qq {$CARNET_DOMAINNAME},
        ftp_firewall => qq {},
        ftp_firewall_type => qq {0},
        ftp_ext_passive => 1,
        ftp_int_passive => 1,
        local_netmask => qq {$CARNET_NETMASK},
}
EOF

# promijeni root passwd
DALJE="rootpass"
while [ "$DALJE" != "nista" ]
  do $DALJE
done

# kraj!
rm -f /etc/UNCONFIGURED