#!/bin/sh

set -e

# Source debconf library.
. /usr/share/debconf/confmodule

CONFIGFILE="/etc/alternc/local.sh"

update_var() {
    local question
    local var
    question="$1"
    var="$2"
    db_get "$question"
    if [ ! -z "$RET" ]; then
        grep -Eq "^ *$var=" $CONFIGFILE || echo "$var=" >> $CONFIGFILE
        SED_SCRIPT="$SED_SCRIPT;s\\^ *$var=.*\\$var=\"$RET\"\\"
    fi
}

# summary of how this script can be called:
#        * <postinst> `configure' <most-recently-configured-version>
#        * <old-postinst> `abort-upgrade' <new version>
#        * <conflictor's-postinst> `abort-remove' `in-favour' <package>
#          <new-version>
#        * <deconfigured's-postinst> `abort-deconfigure' `in-favour'
#          <failed-install-package> <version> `removing'
#          <conflicting-package> <version>
# for details, see http://www.debian.org/doc/debian-policy/ or
# the debian-policy package
#
# quoting from the policy:
#     Any necessary prompting should almost always be confined to the
#     post-installation script, and should be protected with a conditional
#     so that unnecessary prompting doesn't happen if a package's
#     installation fails and the `postinst' is called with `abort-upgrade',
#     `abort-remove' or `abort-deconfigure'.

case "$1" in
  configure)

    # ajoute l'user postfix au groupe sasl
    adduser --quiet postfix sasl

    # corriger les permissions du chroot
    mkdir -p /var/spool/postfix/var/run/saslauthd || true
    dpkg-statoverride --quiet --update --add root sasl 710 /var/spool/postfix/var/run/saslauthd  || true

    # build local.sh if it does not exist
    if [ ! -f $CONFIGFILE ]; then
        cat > $CONFIGFILE <<EOF
#!/bin/sh
#
# AlternC - Web Hosting System - Configuration
# This file will be modified on package configuration
# (e.g. upgrade or dpkg-reconfigure alternc)

# Hosting service name
HOSTING=""

# Primary hostname for this box (will be used to access the management panel)
FQDN=""

# Public IP
PUBLIC_IP=""

# Internal IP
# (most of the time, should be equal to PUBLIC_IP, unless you are behind
# firewall doing address translation)
INTERNAL_IP=""

# Monitoring IP or network (will be allowed to access Apache status)
MONITOR_IP=""

# Primary DNS hostname
NS1_HOSTNAME=""

# Secondary DNS hostname
NS2_HOSTNAME=""

# IP that have privilegied access to the DNS server. Separated by ';'.
BIND_INTERNAL=""

# Mail server hostname
DEFAULT_MX=""

# Note: MySQL username/password configuration now stored in /etc/alternc/my.cnf

# quels clients mysql sont permis (%, localhost, etc)
MYSQL_CLIENT=""

# Folder holding data (used for quota management)
ALTERNC_LOC=""

# the type of backup created by the sql backup script
# valid options are "rotate" (newsyslog-style) or "date" (suffix is the date)
SQLBACKUP_TYPE=""

# overwrite existing files when backing up
SQLBACKUP_OVERWRITE=""
EOF

        chown root:www-data $CONFIGFILE
        chmod 640 $CONFIGFILE
    fi

    # Update local.sh
    # 1. use cp to keep permissions
    # 2. add missing variable to local.sh
    # 3. use sed to set variables with current values
    echo "Updating $CONFIGFILE"
    cp -a -f $CONFIGFILE $CONFIGFILE.tmp
    # SED_SCRIPT will be modified by update_var
    SED_SCRIPT=""
    update_var alternc/hostingname HOSTING
    update_var alternc/desktopname FQDN 
    update_var alternc/public_ip PUBLIC_IP
    update_var alternc/internal_ip INTERNAL_IP
    update_var alternc/monitor_ip MONITOR_IP
    update_var alternc/ns1 NS1_HOSTNAME
    update_var alternc/ns2 NS2_HOSTNAME
    update_var alternc/bind_internal BIND_INTERNAL
    update_var alternc/default_mx DEFAULT_MX 
    update_var alternc/mysql/client MYSQL_CLIENT 
    update_var alternc/sql/backup_type SQLBACKUP_TYPE
    update_var alternc/sql/backup_overwrite SQLBACKUP_OVERWRITE
    update_var alternc/alternc_location ALTERNC_LOC
    sed -e "$SED_SCRIPT" < $CONFIGFILE > $CONFIGFILE.tmp
    mv -f $CONFIGFILE.tmp $CONFIGFILE

    # Setup grants
    db_get "alternc/mysql/host"
    MYSQL_HOST="$RET"
    if [ "$MYSQL_HOST" != "localhost" -o -e /usr/sbin/mysqld ]; then
        # compatibility shims with my.cnf
        host="$RET"
        db_get "alternc/mysql/db"
        database="$RET"
        db_get "alternc/mysql/user"
        user="$RET"
        db_get "alternc/mysql/password"
        password="$RET"
        
        # we source (instead of forking) mysql.sh so that it gets the local environment above
        . /usr/share/alternc/install/mysql.sh
    fi

    # forget the password
    db_reset alternc/mysql/password || true
    db_fset alternc/mysql/password "seen" "false" || true

    if [ -e $CONFIGFILE ]; then
      # source local.sh variables
      . $CONFIGFILE
    fi

    # /var/alternc/dns/d/www.example.com
    FQDN_LETTER="`echo $FQDN | sed -e 's/.*\.\([^\.]\)[^\.]*\.[^\.]*$/\1/'`"
    if [ "$FQDN_LETTER" = "$FQDN" ]
    then
           FQDN_LETTER="_"
    fi

    # Erase all apacheconf file
    # They will be regenerated without the bug by upgrade_check.sh below.
    if dpkg --compare-versions "$2" le "0.9.3.9-globenet14"; then
        rm -f /var/alternc/apacheconf/*/*
        rm -f /var/alternc/apacheconf/override_php.conf
    fi

    echo "checking for upgrades"
    /usr/share/alternc/install/upgrade_check.sh $2

    echo "config phpmyadmin"
    include_str='include("/etc/alternc/phpmyadmin.inc.php")'
    pma_config=/etc/phpmyadmin/config.inc.php
    if ! grep -e "$include_str" $pma_config > /dev/null 2>&1; then
        echo "<?php $include_str ?>" >> $pma_config
    fi

    # Add access to the management panel
    ln -nsf /var/alternc/bureau /var/alternc/dns/$FQDN_LETTER/$FQDN

    # Bind stuff
    touch /var/alternc/bind/automatic.conf /var/alternc/bind/slaveip.conf
    chown root:bind /var/alternc/bind/automatic.conf /var/alternc/bind/slaveip.conf
    chmod 640 /var/alternc/bind/automatic.conf /var/alternc/bind/slaveip.conf
    touch /var/run/alternc/refresh_slave
    /usr/lib/alternc/slave_dns
    # Apache will not start without this file
    touch /var/alternc/apacheconf/override_php.conf

    # Update l18n files
    /usr/share/alternc/install/dopo.sh

    # important: postinst gele sans ca
    db_stop

    echo "running alternc.install"
    alternc.install

    # Add basedir protection
    /usr/lib/alternc/basedir_prot.sh

    if [ -x /usr/sbin/apache ]; then
        if [ ! -h /etc/apache-ssl/conf.d/alternc.conf ]; then
            ln -sf /etc/alternc/apache-ssl.conf \
                /etc/apache-ssl/conf.d/alternc.conf
        fi

        if [ ! -h /etc/apache/conf.d/alternc.conf ]; then
            ln -sf /etc/alternc/apache.conf \
                /etc/apache/conf.d/alternc.conf
        fi

        if [ ! -h /etc/apache/conf.d/override_php.conf ]; then
            ln -sf /var/alternc/apacheconf/override_php.conf \
                /etc/apache/conf.d/override_php.conf
        fi
    fi
    if [ -x /usr/sbin/apache2 ]; then
        if [ ! -h /etc/apache2/conf.d/alternc.conf ]; then
            ln -sf /etc/alternc/apache.conf \
                /etc/apache/conf.d/alternc.conf
        fi
        if [ ! -h /etc/apache2/conf.d/override_php.conf ]; then
            ln -sf /var/alternc/apacheconf/override_php.conf \
                /etc/apache/conf.d/override_php.conf
        fi

    fi 
    ;;

    abort-upgrade|abort-remove|abort-deconfigure)

    ;;

    *)
        echo "postinst called with unknown argument \`$1'" >&2
        exit 1
    ;;

esac

# dh_installdeb will replace this with shell code automatically
# generated by other debhelper scripts.

#DEBHELPER#

exit 0

# vim: et sw=4