#!/usr/bin/sh
#----------------------------------------------------------------------------
# /var/install/bin/sn-newng - add a newsgroup
#
# Creation   :  2001 chriswue
# Last update:  $Id$
#
# Copyright (c) 2001-2003 by Christian Wuerdig eisfair(at)chriswue(dot)de
# Copyright (c) 2010-@@YEAR@@ Holger Bruenjes, holgerbruenjes(at)gmx(dot)net
#
# 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.
#----------------------------------------------------------------------------

. /var/install/include/eislib
. /etc/config.d/sn
. /var/lib/sn/sn.info

tmp="/tmp/.snserv"
defmax="200"
defexpt="1m"

# ---------------------------------------------------------------------------
# check if console minium 80x24
# ---------------------------------------------------------------------------
check_screensize

    case ${?} in
    0)  :       ;;
    *)  exit 1  ;;
    esac

# include passwdlib
. /var/install/include/passwdlib

# ---------------------------------------------------------------------------
# create login
# ---------------------------------------------------------------------------
create_login()
{
    ns_server="${1}"

    if [ -n "${ns_server}" ]
    then
        echo
        ask_tmpfile=$(${MKTEMP} -t XXXXXXXXXXXXX)
        ${ASK} "Login required" > ${ask_tmpfile}
        rc=${?}
        read yesno < ${ask_tmpfile}
        rm -f ${ask_tmpfile}

        # if ask break, ask returned 255
        if [ ${rc} = 255 ]
        then
            exit 0
        fi

        if [ "${yesno}" = "yes" ]
        then
            cd ${OUTGOING}/${ns_server}:119

            echo
            ask_tmpfile=$(${MKTEMP} -t XXXXXXXXXXXXX)
            ${ASK} "Username" "" "*" > ${ask_tmpfile}
            rc=${?}
            read login < ${ask_tmpfile}
            rm -f ${ask_tmpfile}

            # if ask break, ask returned 255
            if [ ${rc} = 255 ]
            then
                exit 0
            fi

            # no username is given
            if [ -z "${login}" ]
            then
                exit 0
            fi

            # function to get and check password
            # returned if true
            # _passwd=true
            get_passwd

            if "${_passwd:-false}"
            then
                echo ${login} >username
                echo ${password} >password
                cp /usr/sbin/SNHELLO SNHELLO
                chmod 600 username password
                chown news:news username password SNHELLO
            fi
        fi
    fi
}

# ---------------------------------------------------------------------------
# add group
# ---------------------------------------------------------------------------
add_group()
{
    touch /var/spool/news/.noservice
    su news -s /usr/bin/sh -c "/usr/sbin/snnewgroup $1 $2 2>>$SN_LOG_DIR/$SN_CONF_LOG"
    echo $defmax > /var/spool/news/$1/.max
    chown news:news /var/spool/news/$1/.max
    echo $defexpt > /var/spool/news/$1/.expire
    chown news:news /var/spool/news/$1/.expire
    touch /var/spool/news/$1/.compress
    chown news:news /var/spool/news/$1/.compress
    rm -f /var/spool/news/.noservice
    mecho -n --info "Newsgroup"
    mecho -n " '${1}'"
    mecho -n --info " on server"
    mecho -n " '${2:-local}'"
    mecho --info " added."
}

# ---------------------------------------------------------------------------
# main
# ---------------------------------------------------------------------------

SN_TITLE="Add newsgroup"
SN_FLAGS='--indent 12 --spread'
SN_CAPTION_1='--info "Add new NG on"'
SN_COLS='40'
SN_ROWS=2

SN_1_1="\"Existing newsserver (or local NG)\""
SN_2_1="\"New newsserver\""

export SN_TITLE
export SN_FLAGS
export SN_CAPTION_1
export SN_COLS
export SN_ROWS

export SN_1_1
export SN_2_1

# marker for newsserver exists
exists=0

SN_QUESTION='Select'
export SN_QUESTION

    ask_tmpfile=$(${MKTEMP} -t XXXXXXXXXXXXX)
    ${CHOOSE} SN 1 > ${ask_tmpfile}
    rc=${?}
    read answer < ${ask_tmpfile}
    rm -f ${ask_tmpfile}

    # if ask break, ask returned 255
    if [ ${rc} = 255 ]
    then
        answer=0
    fi

    case "${answer}" in
    '')
        rm -f ${tmp}
        exit 0
        ;;
    0)
        rm -f ${tmp}
        exit 127
        ;;
    1)
        SN_TITLE="Local news server"
        export SN_TITLE
        unset SN_CAPTION_1

        /var/install/bin/sn-getserver local
        ret=${?}
        ns=''
        if [ -f ${tmp} ]
        then
            read ns < ${tmp}
            rm -f ${tmp}
        else
            exit ${ret}
        fi
        exists=1
        break
        ;;
    2)
        clrhome
        mecho --info "Enter new news server"
        echo

        ask_tmpfile=$(${MKTEMP} -t XXXXXXXXXXXXX)
        ${ASK} "Server" "" "*" > ${ask_tmpfile}
        rc=${?}
        read ns < ${ask_tmpfile}
        rm -f ${ask_tmpfile}

        # if ask break, ask returned 255
        if [ ${rc} = 255 ]
        then
            exit 0
        fi

        case ${ns} in
        '')
            rm -f ${tmp}
            exit 0
            ;;
        *)
            break
            ;;
        esac
    esac


tmp="/tmp/.sngl"
sdir="${OUTGOING}/$ns:119"
if [ -f $sdir/grouplist ]
then
    echo
    ask_tmpfile=$(${MKTEMP} -t XXXXXXXXXXXXX)
    ${ASK} "newsgroup (regex possible):" "" "*" > ${ask_tmpfile}
    rc=${?}
    read regex < ${ask_tmpfile}
    rm -f ${ask_tmpfile}

    # if ask break, ask returned 255
    if [ ${rc} = 255 ]
    then
        exit 0
    fi

    grep "${regex}" ${sdir}/grouplist > ${tmp}


    SN_COLS='60*'
    SN_ROWS=0
    export SN_COLS

    while read line
    do
        SN_ROWS=$((${SN_ROWS} + 1))
        eval ng_${SN_ROWS}='"$line"'
        eval SN_${SN_ROWS}_1=\"${line}\"
        export SN_${SN_ROWS}_1
    done < $tmp
    rm -f $tmp

    SN_ROWS=$((${SN_ROWS} + 1))
    eval ng_${SN_ROWS}='"all.groups"'
    eval SN_${SN_ROWS}_1="all.groups"
    export SN_${SN_ROWS}_1
    export SN_ROWS

    if [ "${SN_ROWS}" -gt 50 ]
    then
        echo
        ask_tmpfile=$(${MKTEMP} -t XXXXXXXXXXXXX)
        ${ASK} "Display all '${SN_ROWS}' possibilities" > ${ask_tmpfile}
        rc=${?}
        read yesno < ${ask_tmpfile}
        rm -f ${ask_tmpfile}

        # if ask break, ask returned 255
        if [ ${rc} = 255 ]
        then
            exit 0
        fi

        if [ "${yesno}" = "no" ]
        then
            exit 0
        fi
    fi

    while [ 1 ]
    do
        SN_TITLE="Subscribe newsgroups"
        SN_SUBTITLE="\n( $((${SN_ROWS} - 1)) groups found matching '${regex}' )"
        SN_FLAGS='--indent 12 --spread'
        SN_QUESTION='Select'
        export SN_TITLE
        export SN_SUBTITLE
        export SN_FLAGS
        export SN_QUESTION

        ask_tmpfile=$(${MKTEMP} -t XXXXXXXXXXXXX)
        ${CHOOSE} SN 1 > ${ask_tmpfile}
        rc=${?}
        read answer < ${ask_tmpfile}
        rm -f ${ask_tmpfile}

        # if ask break, ask returned 255
        if [ ${rc} = 255 ]
        then
            answer=0
        fi

        unset SN_SUBTITLE

        case "${answer}" in
        '') exit 0     ;;
        0)  exit 127   ;;
        *)
            eval group='$ng_'${answer}
            if [ "$group" = "all.groups" ]
            then
                n=0
                numb=$((${SN_ROWS} - 1))
                while [ "$n" -lt "$numb" ]
                do
                    n=$(($n + 1))
                    eval group='$ng_'$n
                    add_group "$group" "$ns"
                done
                anykey
                break
            else
                add_group "$group" "$ns"
                anykey
            fi
            ;;
        esac
    done
else

    echo
    ask_tmpfile=$(${MKTEMP} -t XXXXXXXXXXXXX)
    ${ASK} "newsgroup (no regex possible due to missing grouplist):" "" "*" > ${ask_tmpfile}
    rc=${?}
    read ng < ${ask_tmpfile}
    rm -f ${ask_tmpfile}

    # if ask break, ask returned 255
    if [ ${rc} = 255 ]
    then
        exit 0
    fi

    if [ "$ns" = "local" ]
    then
        ns=""
    fi

    case "${ng}" in
    '') exit 0  ;;
    esac

    add_group "$ng" "$ns"
    if [ "$exists" = "1" ]
    then
        mecho --info "newsserver exists, skipping authorisation"
        anykey
    else
        create_login "${ns}"
    fi
fi

exit 0
# ---------------------------------------------------------------------------
# end
# ---------------------------------------------------------------------------