[英]Check if user's IP address is in a range of IP's
In my Python application I have an array of IP address strings which looks something like this: 在我的Python应用程序中,我有一个IP地址字符串数组,如下所示:
[
"50.28.85.81-140", // Matches any IP address that matches the first 3 octets, and has its final octet somewhere between 81 and 140
"26.83.152.12-194" // Same idea: 26.83.152.12 would match, 26.83.152.120 would match, 26.83.152.195 would not match
]
I installed netaddr
and although the documentation seems great, I can't wrap my head around it. 我安装了netaddr
,虽然文档看起来很棒,但我无法绕过它。 This must be really simple - how do I check if a given IP address matches one of these ranges? 这一定非常简单 - 如何检查给定的IP地址是否与这些范围之一匹配? Don't need to use netaddr
in particular - any simple Python solution will do. 不需要特别使用netaddr
- 任何简单的Python解决方案都可以。
The idea is to split the IP and check every component separately. 我们的想法是拆分IP并分别检查每个组件。
mask = "26.83.152.12-192"
IP = "26.83.152.19"
def match(mask, IP):
splitted_IP = IP.split('.')
for index, current_range in enumerate(mask.split('.')):
if '-' in current_range:
mini, maxi = map(int,current_range.split('-'))
else:
mini = maxi = int(current_range)
if not (mini <= int(splitted_IP[index]) <= maxi):
return False
return True
Not sure this is the most optimal, but this is base python, no need for extra packages. 不确定这是最优的,但这是基础python,不需要额外的包。
ip_range
, creating a list with 1 element if simple value, and a range
if range. 解析ip_range
,创建一个列表,如果是简单值,则包含1个元素,如果是range
则创建范围。 So it creates a list of 4 int/range objects. 因此它创建了一个包含4个int / range对象的列表。 zip
it with a split
version of your address and test each value in range of the other 然后用你的地址的split
版本zip
它,并测试另一个的范围内的每个值 Note: Using range
ensures super-fast in
test (in Python 3) ( Why is "1000000000000000 in range(1000000000000001)" so fast in Python 3? ) 注意:使用range
,确保超高速in
测试(在Python 3)( 为什么是“位于范围千兆(千万亿○一)”在Python 3这么快? )
ip_range = "50.28.85.81-140"
toks = [[int(d)] if d.isdigit() else range(int(d.split("-")[0]),int(d.split("-")[1]+1)) for d in ip_range.split(".")]
print(toks) # debug
for test_ip in ("50.28.85.86","50.284.85.200","1.2.3.4"):
print (all(int(a) in b for a,b in zip(test_ip.split("."),toks)))
result (as expected): 结果(如预期):
[[50], [28], [85], range(81, 140)]
True
False
False
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