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jumpserver/apps/common/utils/random.py

53 lines
1.8 KiB

# -*- coding: utf-8 -*-
#
import struct
import random
import socket
import string
string_punctuation = '!#$%&()*+,-.:;<=>?@[]^_~'
def random_datetime(date_start, date_end):
random_delta = (date_end - date_start) * random.random()
return date_start + random_delta
def random_ip():
return socket.inet_ntoa(struct.pack('>I', random.randint(1, 0xffffffff)))
def random_string(length: int, lower=True, upper=True, digit=True, special_char=False):
args_names = ['lower', 'upper', 'digit', 'special_char']
args_values = [lower, upper, digit, special_char]
args_string = [string.ascii_lowercase, string.ascii_uppercase, string.digits, string_punctuation]
args_string_map = dict(zip(args_names, args_string))
kwargs = dict(zip(args_names, args_values))
kwargs_keys = list(kwargs.keys())
kwargs_values = list(kwargs.values())
args_true_count = len([i for i in kwargs_values if i])
assert any(kwargs_values), f'Parameters {kwargs_keys} must have at least one `True`'
assert length >= args_true_count, f'Expected length >= {args_true_count}, bug got {length}'
can_startswith_special_char = args_true_count == 1 and special_char
chars = ''.join([args_string_map[k] for k, v in kwargs.items() if v])
while True:
password = list(random.choice(chars) for i in range(length))
for k, v in kwargs.items():
if v and not (set(password) & set(args_string_map[k])):
# 没有包含指定的字符, retry
break
else:
if not can_startswith_special_char and password[0] in args_string_map['special_char']:
# 首位不能为特殊字符, retry
continue
else:
# 满足要求终止 while 循环
break
password = ''.join(password)
return password