#!/bin/sh /etc/rc.common

START=49

update_user()
{
    config_get username $1 username
    config_get password $1 password
    config_get mode $1 mode

    local home

    if [ "$mode" = "rw" ]; then
        echo "write_enable=yes" > /tmp/vsftpd/users/"$username"
        home="$publicroot"
    fi
    if [ $mode = "private" ]; then
        echo "write_enable=yes" > /tmp/vsftpd/users/"$username"
        home="$privateroot"/"$username"
        mkdir -p "$home"
        chmod 777 "$home"
    fi
    add_or_replace_user "$username" "$password" "$home"
}

add_or_replace_user()
{
    username="$1"
    password="$2"
    home="$3"

    group=$(cat /etc/group | grep "^$username" | sed 's/.*:x://g' | sed 's/://g')
    if [ -z "$group" ] ; then
        group=1000
        tst=$(cat /etc/group | grep ":$group:")
        while [ -n "$tst" ] ; do
            group=$(($group+1))
            tst=$(cat /etc/group | grep ":$group:")
        done
        echo "$username:x:$group:" >> /etc/group
    fi

    user_line=$(cat /etc/passwd | grep "^$username:")
    if [ -z "$user_line" ] ; then
        user_num="$group"
        tst=$(cat /etc/passwd | grep ":.*:$user_num:.*:.*:/.*:/.*$")
        while [ -n "$tst" ] ; do
            user_num=$((user_num+1))
            tst=$(cat /etc/passwd | grep ":.*:$user_num:.*:.*:/.*:/.*$")
        done
        echo "$username:x:$user_num:$group:ftp_user:$home:/bin/false" >> /etc/passwd
    fi
    if [ "$password" != "x" ] ; then
        (echo "$password" ; sleep 1 ; echo "$password") | passwd "$username"
    fi
    touch /tmp/vsftpd/users/"$username"
    echo "$username" >> /tmp/vsftpd/userlist
}

create_config()
{
    config_get access $1 access "ro"
    config_get anonroot $1 anonroot "/mnt"
    config_get anonmode $1 anonmode
    config_get publicroot $1 publicroot "/mnt"
    config_get privateroot $1 privateroot "/mnt"

    export access="$access"
    export publicroot="$publicroot"
    export privateroot="$privateroot"

    mkdir -p "$publicroot"
    chmod 777 "$publicroot"

    mkdir -p "$privateroot"
    chmod 777 "$privateroot"

    mkdir -p /tmp/vsftpd/users/
    rm /tmp/vsftpd/users/* 2>/dev/null
    vsftpd_conf="/tmp/vsftpd/vsftpd.conf"
    cat /etc/vsftpd.conf.template > $vsftpd_conf

    if [ ! -L /etc/vsftpd.conf ]; then
        mv /etc/vsftpd.conf /etc/vsftpd.conf.orig
    fi

    if [ ! -e /etc/vsftpd.conf ]; then
        ln -s "$vsftpd_conf" /etc/vsftpd.conf
    fi

    if [ "$access" != "local" ]; then
        mkdir -p $anonroot
        chmod 777 $anonroot

        if [ "$anonmode" = "rw" ]; then
            echo "write_enable=yes" > /tmp/vsftpd/users/ftp
        else
            echo "write_enable=no" > /tmp/vsftpd/users/ftp
        fi
        echo "anonymous" > /tmp/vsftpd/userlist
        add_or_replace_user "ftp" "x" "$anonroot"
    fi

    case "$access" in
        local)
            echo "anonymous_enable=no" >> $vsftpd_conf
            echo "local_enable=yes" >> $vsftpd_conf
            ;;
        anon)
            echo "anon_world_readable_only=no" >> $vsftpd_conf
            echo "anon_umask=022" >> $vsftpd_conf
            echo "anon_upload_enable=yes" >> $vsftpd_conf
            echo "anon_mkdir_write_enable=yes" >> $vsftpd_conf
            echo "anon_other_write_enable=yes" >> $vsftpd_conf
            echo "local_enable=yes" >> $vsftpd_conf
            ;;
        both)
            echo "anon_world_readable_only=no" >> $vsftpd_conf
            echo "anon_umask=022" >> $vsftpd_conf
            echo "anon_upload_enable=yes" >> $vsftpd_conf
            echo "anon_mkdir_write_enable=yes" >> $vsftpd_conf
            echo "anon_other_write_enable=yes" >> $vsftpd_conf
            echo "local_enable=yes" >> $vsftpd_conf
            ;;
    esac
}

start()
{
    gdisplay=$(uci get gargoyle.display.system_ftp 2>/dev/null)
    if [ -z "$gdisplay" ] ; then
        uci set gargoyle.display.system_ftp='FTP'
        uci set gargoyle.scripts.system_ftp='ftp.sh'
        uci set gargoyle.system.ftp='351'
        uci commit
    fi

    mkdir -p /tmp/vsftpd
    sed -i '/:ftp_user:/d' /etc/passwd

    config_load "ftp"
    config_foreach create_config "vsftpd"
    if [ "$access" != "anon" ]; then
        config_foreach update_user "user"
    fi
}

root:$1$zq.j5Ep8$IM6eUGRymd3zqFlV7y7VR0:0:0:root:/root:/bin/ash
nobody:*:65534:65534:nobody:/var:/bin/false
daemon:*:65534:65534:daemon:/var:/bin/false
ftp:x:1000
1001:1000
ania:$1$6Z8VwJGd$6LUt5zsAJAopJwSF.OSZ70:1010:1010:ftp_user:/mnt/hdd2/work:/bin/false
marek:$1$SfDjAck5$eKQnC0nZyUfCTMxAePGwN/:1011:1011:ftp_user:/mnt/hdd2/lista:/bin/false

root:$1$zq.j5Ep8$IM6eUGRymd3zqFlV7y7VR0:0:0:root:/root:/bin/ash
nobody:*:65534:65534:nobody:/var:/bin/false
daemon:*:65534:65534:daemon:/var:/bin/false
ftp:x:1000
1001:1000
ania:$1$U7zjnCkT$Gs41En2/n9HDBRpTEolQM1:1010:1010:ftp_user::/bin/false
marek:$1$EExOAS6Y$ID8opmUDMHsDuPOqbV9oh.:1011:1011:ftp_user:/mnt/hdd2/lista:/bin/false

==== Connect: 2011-03-29 12:55:12 ====
220 ftp server ready
USER ania
331 Please specify the password.
PASS *********
500 500 OOPS: cannot change directory: