好吧,这看起来应该很简单,但我有点困惑:
我有两个值- domain和ip,它最好用代码来描述:
whois_result = Popen(['whois', str(domain)], stdout=PIPE,stderr=STDOUT).communicate()[0]
debug_output(whois_result)
if 'Not found' or 'No entries' in whois_result:
print "Processing whois failure on '%s'" % str(domain)
print "Trying the IP (%s) instead..." % ip
whois_result = Popen(['whois', ip], stdout=PIPE,stderr=STDOUT).communicate()[0]
debug_output(whois_result)
if 'Not found' or 'No entries' in whois_result:
print "complete and utter whois failure, its you isnt it, not me."
return False
else:
test = re.search("country.+([A-Z].)",whois_result)
countryid = test.group(1)所以这个函数检查谁是域,如果没有找到它,它会尝试使用ip地址,但我想知道的是,检查域是否等于None的最好方法是什么?不要费心域检查,然后进行ip检查,如果域不等于None,则按该顺序执行域检查,然后进行ip检查。如果这是基本的,我很抱歉,这让我有点困惑。我想我可以设置一个变量并对其进行测试,但是有没有更优雅的方法呢?
如果我在顶部加上一个
if domain != None:我唯一能做的似乎是通过重复代码或设置一个变量,我猜肯定还有其他我不知道的条件测试可以使用。
编辑:更新2基于以下答案:-我也在国家和我的数据库检查代码。
def do_whois(data):
if data is not None: return Popen(['whois', str(data)], stdout=PIPE,stderr=STDOUT).communicate()[0]
return 'No entries'
def check_whois(data):
conn = sqlite3.connect(db_name)
cursor = conn.cursor()
if 'No entries' in data or 'Not found' in data or 'No match for' in data:return False
id = re.search("country.+([A-Z].)",data)
if id is None:
print "we didnt get nuttin from whois"
return False
countryid = id.group(1)
# fetch country from countrycode db
cursor.execute("SELECT country,countrycode FROM countries WHERE countrycode = ?",(countryid,))
country = cursor.fetchone()
country = country[0]
print "Server is from: " + country
return (country,countryid)
def find_country(domain, ip):
return check_whois(do_whois(domain)) or check_whois(do_whois(ip))使其健壮的部分问题是由whois服务器返回的不同值,例如此IP: 67.222.137.216
whois服务器返回:
@ : whois 67.222.137.216
#
# Query terms are ambiguous. The query is assumed to be:
# "n 67.222.137.216"
#
# Use "?" to get help.
#
#
# The following results may also be obtained via:
# http://whois.arin.net/rest/nets;q=67.222.137.216?showDetails=true&showARIN=false&ext=netref2
#
BLUESQUAREDATAVPSLLC BLUESQUAREDATAVPSLLCNET (NET-67-222-137-213-1) 67.222.137.213 - 67.222.137.244
DFW Datacenter DFW-DATACENTER (NET-67-222-128-0-1) 67.222.128.0 - 67.222.159.255
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#谢谢你的帮助。
发布于 2011-11-28 23:43:53
尝尝这个
def do_whois(data):
if data: return Popen(['whois', str(data)], stdout=PIPE,stderr=STDOUT).communicate()[0]
return 'No entries'
def check_whois(data):
if 'No entries' in data or 'Not found' in data:return False
test = re.search("country.+([A-Z].)",whois_result)
return test.group(1)
def find_whois(domain, ip):
return check_whois(do_whois(domain)) or check_whois(do_whois(ip))发布于 2011-11-28 23:28:14
这是行不通的:
if 'Not found' or 'No entries' in whois_result:这被解释为总是返回True的if ('Not found') or ('No entries' in whois_result)。
回答你的问题:
if domain != None && domain != 1:-编辑-
如果你的意思是None而不是“1”,你应该简单地将你的IP检查代码(将在域检查之后执行)放在与域检查相同的缩进级别。
发布于 2011-11-28 23:28:42
这个条件是错误的:
if 'Not found' or 'No entries' in whois_result:因为表达式'Not found' or 'No entries' in whois_result总是返回'Not found',所以它的计算结果总是"true“。
您需要将if-语句更改为:
if 'Not found' in whois_result or 'No entries' in whois_result:https://stackoverflow.com/questions/8298043
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