#!/bin/sh
#-----------------------------------------------------------------------------
# /etc/rc.d/vbox-helper - helper functions for rc900.vbox
#
# Creation:     2005-02-10 hh
# Last Update:  $Id$
#------------------------------------------------------------------------------
vbox_prepare ()
{
    # make some needed symlinks
    cd /usr/bin
    ln -s vboxcnvt autovbox
    ln -s vboxcnvt vboxtoau
    ln -s vboxcnvt vboxmode
    cd /

    # convert messages
    MESSAGEDIR=/etc/vbox/messages
    if ls -al $MESSAGEDIR | grep ".wav$"
    then
        echo "  converting *.wav files to au format - this may take a while ..."
        for msg in $MESSAGEDIR/*.wav
        do
            sox "$msg" -c 1 -r 8000 -t au - >`echo "$msg" | sed s/wav$/au/`
            rm "$msg"
        done
    fi
    if ls -al $MESSAGEDIR | grep ".au$"
    then
        echo "  converting *.au files to vbox format - this may take a while ..."
        for msg in $MESSAGEDIR/*.au
        do
            autovbox <$msg --$VBOX_COMPRESSION >`echo "$msg" | sed s/au$/msg/`
            rm "$msg"
        done
    fi

    # make menu entry for mini_httpd
    case $OPT_HTTPD in yes) httpd-menu.sh add -p 400 "vbox.cgi" '$_MP_vbox' "" vbox ;; esac
    # get httpd configfile for the case an OPT changed the environment (like mlnet)
    . /var/run/mini_httpd.conf
    # add menu translation to main language file
    for lang in $HTTPD_AVAIL_LANGS
    do
        mk_writable /srv/www/lang/main.$lang
        grep ^_MP /srv/www/lang/vbox.$lang >> /srv/www/lang/main.$lang
    done

    # set some constants
    VBOXGROUP=vboxusers
    VBOXGROUPID=10
    CONFDIR=/etc/vbox
    LOGDIR=/var/log/vbox
    VBOX_TTYI_MIN=`cat /var/run/next_ttyI`
    VBOX_TTYI_MAX=15

    # create log- and lock-dirs
    mkdir -p /var/lock
    mkdir -p "$VBOX_LOGPATH"
    case "$VBOX_LOGPATH" in
        "$LOGDIR") ;;
        *) ln -sf "$VBOX_LOGPATH" "$LOGDIR" ;;
    esac
}
 
value ()
{   # value () yields value of compound "array" variables like '$VBOX_USER_'$i'_MSN'
    # filename globbing disabled to prevent interpretation of "*" in some variables
    set -f
    eval echo -n $1
    set +f
}

vbox_check_spooldir ()
{
    case "x$VBOX_SPOOLPATH" in
        x) install_on="ram" ;;
        *) install_on="hd"  ;;
    esac

    # check for valid spoolarea configuration
    SPOOLDIR=/var/spool/vbox
    case $install_on in
    ram)
        ram_free=$(expr `sed -n 's/ kB//;s/MemFree://p' /proc/meminfo` + `sed -n 's/ kB//;s/^Cached://p' /proc/meminfo`)
        if [ `expr $VBOX_SPOOLDIR_SPACE + 768` -gt $ram_free ]               # enough ram available?
        then                                                                 # 768KiB should be left untouched
            set_error "Not enough memory for spooldirs available!"
        else
            mkdir -p "$SPOOLDIR"
        fi
    ;;
    hd)
        # check if spoolpath is not in ramdisk
        if ! echo $VBOX_SPOOLPATH | grep -q "\(`echo \`df | grep ^/dev | sed -e 's/.*% //'\`|sed -e 's/ \//\\\|\//g'`\)"
        then
            log_error "VBOX_SPOOLPATH $VBOX_SPOOLPATH is not on a harddisk!"
            set_error "Please check your mount options!"
        else
            hd_path=$VBOX_SPOOLPATH/vbox_spooldir
            if ! mkdir -p "$hd_path"  # create directory if not available and check if spooldir is available or sucessfully created
            then
                set_error "Error creating Spooldir: $hd_path"
            else
                echo "  spool directory $hd_path created"
                mountpoint=`df $VBOX_SPOOLPATH | grep ^/dev | sed "s/.*% //"`
                case $mountpoint in       # check if spoolpath is not in /opt
                /opt) set_error "VBOX_SPOOLPATH $VBOX_SPOOLPATH must not be in '/opt'" ;;
                *)
                    if mount | grep -e " $mountpoint " | grep -q -e "(ro)" -e "vfat" # check if spoolpath is not on ro mounted or vfat partition
                    then
                        set_error "VBOX_SPOOLPATH $VBOX_SPOOLPATH mounted readonly or is on vfat partition"
                    else
                        kb_available=`df $VBOX_SPOOLPATH |grep ^/dev |sed "s/[^ ]* *[0-9]* *[0-9]* *//;s/[0-9]*%.*//"`
                        if [ 0$kb_available -lt 0$VBOX_SPOOLDIR_SPACE ]  # check if there is enough space on partition
                        then
                            log_error "Insufficient space in VBOX_SPOOLPATH $VBOX_SPOOLPATH"
                            set_error "Requested: $VBOX_SPOOLDIR_SPACE   Available: $kb_available"
                        else
                            # everything's fine, create link
                            ln -s "$hd_path" $SPOOLDIR
                        fi
                    fi
                ;;
                esac
            fi
        fi
    ;;
    esac
}