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run.py
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# -*- coding:utf-8-
import sys
ip_number_repeat = []
ip_number_merge = []
def is_valid_ip(ip):
ip_list = ip.split('.')
if ip is None or ip == '':
print 'Invalid IP: None'
return False
if len(ip_list) < 4:
print 'Invalid IP:', ip
return False
for i in ip_list:
if not i.isdigit():
print 'Invalid IP:', ip
return False
elif int(i) < 0 or int(i) > 255:
print 'Invalid IP:', ip
return False
return True
pass
def ip_to_number(ip):
if not is_valid_ip(ip):
return -1
ip_list = ip.strip().split('.')
ip_number = int(ip_list[0]) * 256 * 256 * 256
ip_number = int(ip_list[1]) * 256 * 256 + ip_number
ip_number = int(ip_list[2]) * 256 + ip_number
ip_number = int(ip_list[3]) + ip_number
return ip_number
pass
def number_to_ip(number):
ip_list = ''
ip_list = ip_list + str((number / 256 / 256 / 256) % 256) + '.'
ip_list = ip_list + str((number / 256 / 256) % 256) + '.'
ip_list = ip_list + str((number / 256) % 256) + '.'
ip_list = ip_list + str(number % 256)
return ip_list
pass
def number_to_list(number):
if ip_number_merge.__contains__(number):
if not ip_number_repeat.__contains__(number):
ip_number_repeat.append(number)
else:
ip_number_merge.append(number)
pass
def mask_to_ip(line):
l = line.split('/')
ip_head = l[0]
mask = int(l[1])
ip_number = ip_to_number(ip_head)
if ip_number < 0:
return
if mask < 0 or mask > 32:
print 'Invalid mask:', mask
return
mask_number = 0
for m in range((32-mask), 32):
mask_number = mask_number + (2 ** m)
start = ip_number & mask_number
end = start + 2 ** (32 - mask)
for ip_number in range(start + 1, end - 1): #start:networkID, end:broadcast
number_to_list(ip_number)
pass
def part_to_ip(line):
l = line.split('-')
start = ip_to_number(l[0])
end = ip_to_number(l[1])
if start < 0 or end < 0:
return
for ip_number in range(start, (end + 1)):
number_to_list(ip_number)
pass
def list_to_part(ip_map):
len_map = len(ip_map)
ip_map.sort()
start = -1
ip_part = []
if len_map == 1:
ip_part.append(number_to_ip(ip_map[0]) + '-' + number_to_ip(ip_map[0]))
else:
for i in range(0, len_map):
if i == 0:
start = i
if ip_map[i + 1] - ip_map[i] > 1:
end = i
ip_part.append(number_to_ip(ip_map[start]) + '-' + number_to_ip(ip_map[end]))
elif i == len(ip_map) - 1:
end = i
ip_part.append(number_to_ip(ip_map[start]) + '-' + number_to_ip(ip_map[end]))
elif 0 < i < (len(ip_map) - 1):
if ip_map[i] - ip_map[i - 1] > 1:
start = i
if ip_map[i + 1] - ip_map[i] > 1:
end = i
ip_part.append(number_to_ip(ip_map[start]) + '-' + number_to_ip(ip_map[end]))
start = i + 1
return ip_part
pass
if __name__ == '__main__':
arg = sys.argv
if len(arg) < 2:
print "Usage: python run.py input_file"
print "ip examples:"
print "192.168.0.1"
print "192.168.0.1/24"
print "192.168.0.1-192.168.0.100"
sys.exit(0)
input_file = arg[1]
with open(input_file) as f:
for line in f:
line = line.strip()
if len(line) < 1:
continue
if len(line.split('/')) > 1:
print 'start process', line
mask_to_ip(line)
elif len(line.split('-')) > 1:
print 'start process', line
part_to_ip(line)
else:
print 'start process', line
ip_number = ip_to_number(line)
if not ip_number < 0:
number_to_list(ip_number)
pass
ip_merge = list_to_part(ip_number_merge)
ip_repeat = list_to_part(ip_number_repeat)
print 'merge:'
for line in ip_merge:
print line
print 'repeat:'
for line in ip_repeat:
print line