#
# common.py
#
# Copyright (C) 2009 Andrew Resch <andrewresch@gmail.com>
#
# Deluge is free software.
#
# You may redistribute it and/or modify it under the terms of the
# GNU General Public License, as published by the Free Software
# Foundation; either version 3 of the License, or (at your option)
# any later version.
#
# deluge is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with deluge.    If not, write to:
# 	The Free Software Foundation, Inc.,
# 	51 Franklin Street, Fifth Floor
# 	Boston, MA  02110-1301, USA.
#
#    In addition, as a special exception, the copyright holders give
#    permission to link the code of portions of this program with the OpenSSL
#    library.
#    You must obey the GNU General Public License in all respects for all of
#    the code used other than OpenSSL. If you modify file(s) with this
#    exception, you may extend this exception to your version of the file(s),
#    but you are not obligated to do so. If you do not wish to do so, delete
#    this exception statement from your version. If you delete this exception
#    statement from all source files in the program, then also delete it here.
#
#


import pkg_resources
import os.path

def get_resource(filename):
    return pkg_resources.resource_filename("blocklist", os.path.join("data", filename))

def raiseError(error):
    def safer(func):
        def new(self, *args, **kwargs):
            try:
                return func(self, *args, **kwargs)
            except:
                raise error
        return new
    return safer

def remove_zeros(ip):
    """
    Removes unneeded zeros from ip addresses.
    
    Example: 000.000.000.003 -> 0.0.0.3
    
    :param ip: the ip address
    :type ip: string
    
    :returns: the ip address without the unneeded zeros
    :rtype: string
    
    """
    return ".".join([part.lstrip("0").zfill(1) for part in ip.split(".")])
