121 lines
3.0 KiB
Python
121 lines
3.0 KiB
Python
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# -*- coding: utf-8 -*-
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############################################################################
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# Copyright (C) 2007-2012 Laboratório de Sistemas e Tecnologia Subaquática #
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# Departamento de Engenharia Electrotécnica e de Computadores #
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# Rua Dr. Roberto Frias, 4200-465 Porto, Portugal #
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############################################################################
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# Author: Ricardo Martins #
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############################################################################
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# $Id:: download-peers.py 1349 2012-12-06 01:38:21Z rasm $:#
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############################################################################
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import os
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import sys
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import socket
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URL = 'https://docs.google.com/spreadsheet/pub?key=0Aj00gvm9SJiUdDBXU2hpN09uZEpjM1hJanZxWU1aY0E&single=true&gid=4&output=csv'
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DOMAIN = '.fe.up.pt'
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ADDR = 0
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EMAC = 1
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WMAC = 2
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NAME = 3
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DESC = 4
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def get_name(line):
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s = line[NAME].strip().lower()
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s = s.replace(' ', '')
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return s
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def write_addr(stream, line):
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d = {}
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d['addr'] = line[ADDR].strip()
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d['emac'] = line[EMAC].strip()
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d['wmac'] = line[WMAC].strip()
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d['name'] = get_name(line)
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if d['name'] == '' or d['addr'] == '':
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return
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d['macs'] = ','.join([d['emac'], d['wmac']]).strip(',')
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if d['macs'] == '':
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return
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stream.write('dhcp-host=%(macs)s,id:*,%(addr)s,%(name)s\n' % d)
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def write_host(stream, line):
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addr = line[ADDR].strip()
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name = get_name(line)
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fqdn = name + DOMAIN
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desc = line[DESC].strip()
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if addr == '' or name == '':
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return
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stream.write('%-18s %-35s %-35s # %s\n' % (addr, fqdn, name, desc))
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def update_file(old, new):
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old_text = ''
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try:
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old_text = open(old).read()
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except:
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pass
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new_text = open(new).read()
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if old_text == new_text:
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os.remove(new)
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return False
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print('Renaming "%s" to "%s"' % (new, old))
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os.rename(new, old)
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return True
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import urllib
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req = urllib.urlopen(URL)
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import csv
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lines = req.read().splitlines()
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reader = csv.reader(lines)
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next(reader)
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# Validate list.
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lines = []
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hosts = {}
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count = 0
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for line in reader:
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name = get_name(line)
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addr = line[ADDR].strip()
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if name in hosts and name != '':
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print('Duplicated hostname "%s".' % name)
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continue
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try:
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socket.inet_pton(socket.AF_INET, addr)
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except:
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continue
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count = count + 1
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lines.append(line)
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hosts[name] = True
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if count == 0:
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print("Refusing to write configuration files without valid addresses.")
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sys.exit(0)
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wd = '.'
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if len(sys.argv) == 2:
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wd = sys.argv[1]
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host_file = os.path.join(wd, 'hosts.txt')
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addr_file = os.path.join(wd, 'addrs.conf')
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host = open(host_file + '.new', 'w')
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addr = open(addr_file + '.new', 'w')
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for line in lines:
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write_host(host, line)
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write_addr(addr, line)
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host.close();
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addr.close();
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updated = False
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update_file(host_file, host_file + '.new')
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update_file(addr_file, addr_file + '.new')
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print('Processed %d addresses.' % count)
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