onetimedownload.py
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##############################################################################
#
# Copyright (c) 2010 Vifib SARL and Contributors. All Rights Reserved.
#
# WARNING: This program as such is intended to be used by professional
# programmers who take the whole responsibility of assessing all potential
# consequences resulting from its eventual inadequacies and bugs
# End users who are looking for a ready-to-use solution with commercial
# guarantees and support are strongly adviced to contract a Free Software
# Service Company
#
# 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 3
# of the License, or (at your option) any later version.
#
# This program 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 this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
##############################################################################
import os
import sys
from optparse import OptionParser, Option
from six.moves.urllib.request import urlopen
class Parser(OptionParser):
"""
Parse all arguments.
"""
def check_args(self):
"""
Check arguments
"""
(options, args) = self.parse_args()
if len(args) != 2:
self.error("Incorrect number of arguments")
url, file_path = args
return url, file_path
class Config:
def setConfig(self, url, file_path):
"""
Set options given by parameters.
"""
self.url = url
self.file_path = file_path
def onetimedownload(url, file_path):
url_file = urlopen(url)
data = url_file.read()
file_object = open(file_path, 'w')
file_object.write(data)
file_object.close()
def main():
"Run default configuration."
usage = "usage: onetimedownload URL FILE_PATH"
try:
# Parse arguments
config = Config()
config.setConfig(*Parser(usage=usage).check_args())
onetimedownload(config.url, config.file_path)
return_code = 0
except SystemExit as err:
# Catch exception raise by optparse
return_code = err
sys.exit(return_code)