mirror of
https://github.com/Astatin3/ip-hilbert.git
synced 2026-06-09 00:18:01 -06:00
astatin3
94 lines
2.4 KiB
Python
94 lines
2.4 KiB
Python
# https://github.com/bonsaiviking/IPMap/blob/master/ipmap/hilbert.py
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def xy2d(side_length: int, x: int, y: int):
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"""Find the distance of the point (x, y) along a Hilbert curve
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which fills a square *side_length* units on a side."""
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y = side_length-y
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s = side_length / 2
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d = 0
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while( s > 0 ):
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rx = 1 if (int(x) & int(s)) else 0
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ry = 1 if (int(y) & int(s)) else 0
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d += s * s * ((3 * rx) ^ ry)
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if (ry == 0):
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if (rx == 1):
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x = s-1 - x
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y = s-1 - y
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(x, y) = (y, x)
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s /= 2
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return int(d)
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# https://github.com/bonsaiviking/IPMap/blob/master/ipmap/hilbert.py
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def d2xy(side_length: int, d: int):
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"""Find the coordinates (x, y) of a point some distance *d* along
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a Hilbert curve which fills a square *side_length* units on a side."""
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x = y = 0
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s = 1
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while( s < side_length ):
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rx = 1 & int(d/2)
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ry = 1 & (int(d) ^ rx)
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if (ry == 0):
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if (rx == 1):
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x = s-1 - x
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y = s-1 - y
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(x, y) = (y, x)
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x += s * rx
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y += s * ry
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d /= 4
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s *= 2
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# if y < 10000:
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# print(ip_int_to_ip(int(d)))
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return x, side_length-y
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def ip_to_int(ip):
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return int(''.join([bin(int(x) + 256)[3:] for x in ip.split('.')]), 2)
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def ip_int_to_ip(ip_int):
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return ".".join(str((ip_int >> i) & 0xFF) for i in [24, 16, 8, 0])
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def ipInCIDR(ip: str, ip_CIDR: str):
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range_parts = ip_CIDR.split('/')
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range_mask = int(range_parts[1])
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range_mask_num = (0xFFFFFFFF << (32 - range_mask)) & 0xFFFFFFFF
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return (ip_to_int(ip) & range_mask_num) == (ip_to_int(range_parts[0]) & range_mask_num)
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def ipInRange(ip: str, ip_range: str):
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ip_int = ip_to_int(ip)
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start_ip_int, end_ip_int = [ip_to_int(ip) for ip in ip_range.split('-')]
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return start_ip_int <= ip_int <= end_ip_int
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reserved_ip_blocks=[
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"0.0.0.0/8",
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"10.0.0.0/8",
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"100.64.0.0/10",
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"127.0.0.0/8",
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"169.254.0.0/16",
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"172.16.0.0/12",
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"192.0.0.0/24",
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"192.0.2.0/24",
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"192.88.99.0/24",
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"192.168.0.0/16",
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"198.18.0.0/15",
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"198.51.100.0/24",
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"203.0.113.0/24",
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"224.0.0.0/4",
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"233.252.0.0/24",
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"240.0.0.0/4",
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"255.255.255.255/32"
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]
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def is_valid_ip(ip: str):
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if ":" in ip:
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ip = ip.split(":")[0]
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for reserved_ip in reserved_ip_blocks:
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if ipInCIDR(ip, reserved_ip):
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return False
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return True
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