Delete ip.py
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sanic/ip.py
69
sanic/ip.py
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import socket
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# CAPS R OK BCUZ WE HAZ CIDict
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HEADER_PRECEDENCE_ORDER = (
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'X_FORWARDED_FOR',
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'CLIENT_IP',
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'X_REAL_IP',
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'X_FORWARDED',
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'X_CLUSTER_CLIENT_IP',
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'FORWARDED_FOR',
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'FORWARDED',
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'VIA',
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'REMOTE_ADDR',
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)
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# Private IP addresses
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# http://en.wikipedia.org/wiki/List_of_assigned_/8_IPv4_address_blocks
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# http://www.ietf.org/rfc/rfc3330.txt (IPv4)
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# http://www.ietf.org/rfc/rfc5156.txt (IPv6)
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# Regex would be ideal here, but this is keeping it simple
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PRIVATE_IP_PREFIX = (
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'0.', # externally non-routable
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'10.', # class A private block
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'169.254.', # link-local block
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'172.16.', '172.17.', '172.18.', '172.19.',
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'172.20.', '172.21.', '172.22.', '172.23.',
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'172.24.', '172.25.', '172.26.', '172.27.',
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'172.28.', '172.29.', '172.30.', '172.31.', # class B private blocks
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'192.0.2.', # reserved for documentation and example code
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'192.168.', # class C private block
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'255.255.255.', # IPv4 broadcast address
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'2001:db8:', # reserved for documentation and example code
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'fc00:', # IPv6 private block
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'fe80:', # link-local unicast
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'ff00:', # IPv6 multicast
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)
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LOOPBACK_PREFIX = (
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'127.', # IPv4 loopback device
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'::1', # IPv6 loopback device
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)
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NON_PUBLIC_IP_PREFIX = PRIVATE_IP_PREFIX + LOOPBACK_PREFIX
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def is_valid_ipv4(ip_str):
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try:
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socket.inet_pton(socket.AF_INET, ip_str)
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except AttributeError: # pragma: no cover
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try: # Fall-back on legacy API or False
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socket.inet_aton(ip_str)
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except (AttributeError, socket.error):
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return False
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return ip_str.count('.') == 3
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except socket.error:
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return False
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return True
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def is_valid_ipv6(ip_str):
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try:
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socket.inet_pton(socket.AF_INET6, ip_str)
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except socket.error:
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return False
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return True
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def is_valid_ip(ip_str):
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return is_valid_ipv4(ip_str) or is_valid_ipv6(ip_str)
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