#!/bin/bash
# info: update user backups
# options: USER
#
# The function rescan backup directory and updates backup database.


#----------------------------------------------------------#
#                    Variable&Function                     #
#----------------------------------------------------------#

# Includes
source $VESTA/func/main.sh
source $VESTA/conf/vesta.conf

# Argument defenition
user=$1
type="${2-$BACKUP_SYSTEM}"

# Defining tar parser function 
get_backup_info() {
    backup=$1
    backup_type="$2"

    backup_name=$(basename $backup )
    backup_date=$(echo $backup_name |cut -f 2 -d '.' )
    backup_time=$(stat --printf=%y $backup |cut -f 2 -d ' ' |cut -f 1 -d '.')
    backup_size=$(du -sm $backup |cut -f 1 )
    backup_data=$(tar -tf  $backup)

    vst_data=$(echo "$backup_data" |grep "^./vesta/" |grep -v "^./vesta/$")
    if [ -z "$vst_data" ]; then
        vst=''
    else
        vst='yes'
    fi

    pam_data=$(echo "$backup_data" |grep "^./pam/" |grep -v "^./pam/$")
    if [ -z "$pam_data" ]; then
        pam=''
    else
        pam='yes'
    fi

    web_data=$(echo "$backup_data" |grep "^./web/" |grep -v "^./web/$" |sort)
    if [ -z "$web_data" ]; then
        web=''
    else
        i=1
        for domain in $web_data; do
            domain="$(basename $domain |sed 's/.tar.gz$//')"
            if [ "$i" -eq 1 ]; then
                web="$domain"
                i=2
            else
                web="$web,$domain"
            fi
        done
    fi

    dns_data=$(echo "$backup_data" |grep "^./dns/" |grep ".db$" |sort)
    if [ -z "$dns_data" ]; then
        dns=''
    else
        i=1
        for domain in $dns_data; do
            domain="$(basename $domain |sed 's/.db$//')"
            if [ "$i" -eq 1 ]; then
                dns="$domain"
                i=2
            else
                dns="$dns,$domain"
            fi
        done
    fi

    mail_data=$(echo "$backup_data"|grep "^./mail/"|grep -v "^./mail/$"|sort)
    if [ -z "$mail_data" ]; then
        ml=''
    else
        i=1
        for domain in $mail_data; do
            domain="$(basename $domain |sed 's/.tar.gz$//')"
            if [ "$i" -eq 1 ]; then
                ml="$domain"
                i=2
            else
                ml="$ml,$domain"
            fi
        done
    fi

    db_data=$(echo "$backup_data"|grep "^./db/"|grep ".sql.gz$"|sort)
    if [ -z "$db_data" ]; then
        db=''
    else
        i=1
        for dbase in $db_data; do
            dbase=$(basename $dbase |sed "s/.\(my\|pg\)sql.sql.gz$//")
            if [ "$i" -eq 1 ]; then
                db="$dbase"
                i=2
            else
                db="$db,$dbase"
            fi
        done
    fi

    ssl_data=$(echo "$backup_data"|grep "^./ssl/"|grep ".crt$"|sort)
    if [ -z "$ssl_data" ]; then
        ssl=''
    else
        i=1
        for certificate in $ssl_data; do
            certificate=$(basename $certificate |sed "s/.crt$//")
            if [ "$i" -eq 1 ]; then
                ssl="$certificate"
                i=2
            else
                ssl="$ssl,$certificate"
            fi
        done
    fi

    cron_data=$(echo "$backup_data" |grep "^./cron/" |grep -v "^./cron/$")
    if [ -z "$cron_data" ]; then
        cron=''
    else
        cron='yes'
    fi

    echo -n "DATE='$backup_date' TIME='$backup_time' RUNTIME='0'"
    echo -n " SIZE='$backup_size' TYPE='$backup_type' VESTA='$vst' PAM='$pam'"
    echo " WEB='$web' DNS='$dns' MAIL='$ml' DB='$db' SSL='$ssl' CRON='$cron'"
}

# Defining ftp command function
ftpc() {
    ftp -n $HOST $PORT <<EOF
    quote USER $USERNAME
    quote PASS $PASSWORD
    binary
    cd $BPATH
    $1
    quit
EOF
}

init_ftp_variables() {
    source $VESTA/conf/ftp.backup.conf
    if [ -z "$HOST" ] || [ -z "$USERNAME" ] || [ -z "$PASSWORD" ] ||\
        [ -z "$BPATH" ]; then
        echo "Error: Parsing error"
        log_event "$E_PARSING" "$EVENT"
        exit $E_PARSING
    fi
}

check_ftp_connection(){
    ftmpdir=$(mktemp -u -p $BPATH)
    command="mkdir $ftmpdir
             ls $ftmpdir
             rm $ftmpdir"
    if [ ! -z "$(ftpc "$command")" ] ; then
        echo "Error: FTP error"
        log_event "$E_FTP" "$EVENT"
        exit $E_FTP
    fi
}



#----------------------------------------------------------#
#                    Verifications                         #
#----------------------------------------------------------#

check_args '1' "$#" 'USER'
is_system_enabled "$BACKUP_SYSTEM" 'BACKUP_SYSTEM'
validate_format 'user'
is_object_valid 'user' 'USER' "$user"
la=$(cat /proc/loadavg |cut -f 1 -d ' '|cut -f 1 -d '.')
if [ "$la" -ge "$BACKUP_LA_LIMIT" ]; then
    log_event "$E_LA" "$EVENT"
    exit $E_LA
fi


#----------------------------------------------------------#
#                       Action                             #
#----------------------------------------------------------#

# Checking tmp file
tmp_file="$USER_DATA/backup.conf_tmp"
if [ -e "$tmp_file" ]; then
    rm -f $tmp_file
fi

# Checking local
if [ "$type" = 'local' ]; then
    backups=$(ls $BACKUP |grep "^$user."|sort)
    for backup in $backups; do
        get_backup_info $BACKUP/$backup $type >> $tmp_file
    done
fi

# Checking ftp
if [ "$type" = 'ftp' ]; then
    tmpdir=$(mktemp -p $BACKUP -d)
    ftmpdir=$(basename $tmpdir)
    init_ftp_variables
    check_ftp_connection
    backups=$(ftpc ls|awk '{print $9}'|grep "^$user.")

    for backup in $backups; do
        cd $tmpdir
        if [ ! -z "$(ftpc "get $backup")" ]; then
            echo "Error: FTP transfer error"
            log_event "$E_FTP" "$EVENT"
            exit $E_FTP
        fi
        get_backup_info $tmpdir/$backup $type >> $tmp_file
        rm -f $tmpdir/$backup
    done
    rm -rf $tmpdir
fi

# Checking both local and ftp
if [ "$type" = 'ftp,local' ] || [ "$type" = 'local,ftp' ]; then

    tmpdir=$(mktemp -p $BACKUP -d)
    ftmpdir=$(basename $tmpdir)
    init_ftp_variables
    check_ftp_connection
    ftp_backups=$(ftpc ls|awk '{print $9}'|grep "^$user.")
    local_backups=$(ls $BACKUP/ |grep "^$user." |sort)
    backups=$(echo -e "$local_backups\n$ftp_backups" |\
                sort |uniq -c | awk '{print $1" "$2}')

    for backup in $(echo "$backups"|grep "^1 "|cut -f 2 -d ' '); do
        check_ftp=$(echo $ftp_backups|grep -w $backup)
        if [ ! -z "$check_ftp" ]; then
            cd $tmpdir
            if [ ! -z "$(ftpc "get $backup")" ]; then
                echo "Error: FTP transfer error"
                log_event "$E_FTP" "$EVENT"
                exit $E_FTP
            fi
            get_backup_info $tmpdir/$backup ftp >> $tmp_file
            rm -f $tmpdir/$backup
        else
            get_backup_info $BACKUP/$backup local >> $tmp_file
	fi
    done

    for backup in $(echo "$backups"|grep "^2 "|cut -f 2 -d ' '); do
        get_backup_info $BACKUP/$backup $type >> $tmp_file
    done
    rm -rf $tmpdir
fi

# Checking if there was any output
if [ -e "$tmp_file" ]; then
    cat $tmp_file | sort > $USER_DATA/backup.conf
    rm $tmp_file
else
    rm $USER_DATA/backup.conf
    touch $USER_DATA/backup.conf
fi


#----------------------------------------------------------#
#                       Vesta                              #
#----------------------------------------------------------#

# Logging
log_event "$OK" "$EVENT"

exit