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import re
import IPy
def isHost(host: str) -> bool:
'''
判断host是否合法
IPv4 / IPv6 / Domain
合法: return True
不合法: return False
'''
try:
IPy.IP(host)
if host.find('/') != -1: # filter CIDR
return False
return True
except: # not IP address
pass
return (re.search(r'^(?=^.{3,255}$)[a-zA-Z0-9_][a-zA-Z0-9_-]{0,62}(\.[a-zA-Z0-9_][a-zA-Z0-9_-]{0,62})+$', host) != None)
def isPort(port) -> bool:
'''
判断端口是否合法
1 ~ 65535
合法: return True
不合法: return False
'''
try:
if isinstance(port, (int, str)):
if int(port) >= 1 and int(port) <= 65535:
return True
except: # illegal
pass
return False