如何解决将域名与DNS解析器名称匹配-Python
我对Python还是很陌生，并且一直在从事这项工作，并且有一些附带项目可以使我的Plex Media Management任务自动化。
我正在尝试编写一个python脚本，该脚本允许我从csv文件中获取一组域列表，并将其与dns名称匹配：示例（使用“ NS”的Plex.tv将返回jeremy.ns.cloudflare .com）
我的主要目标是从csv中读取域列表
运行我的代码以将这些域与dns解析器名称匹配
将它们写到一个新的CSV文件中，然后将两者压缩在一起，这就是我的代码。
一路上我遇到一些问题。
- Visual Code不允许导入dns.resolver（这不是一个大问题，但是如果您知道此修复程序，那么它就不必从命令行运行它了）
- 将域匹配到其DNS解析器会引发错误“ AttributeError：'list'对象没有属性'is_absolute'”
import csv
import socket
import dns.resolver
import os
from os.path import dirname,abspath
# Setting Variables
current_path = dirname(abspath(__file__))
domainFName = '{0}/domains.csv'.format(current_path)
outputFile = '{0}/output.csv'.format(current_path)
dnsList = '{0}/list2.csv'.format(current_path)
case_list = []
fields = ['Domains','DNS Resolvers']
caseList = []
dnsResolve = []
# Read in all domains from csv into list
with open(domainFName,'r') as file:
for line in csv.reader(file):
case_list.append(line)
print(case_list)
# Match domains to the DNS Resolver Name
for domains in case_list:
answer = dns.resolver.resolve(domains,'NS')
server = answer.target
dnsResolve.append(server)
# Write the dns Resolver names into a new csv file
with open(dnsList,'w',newline="") as r:
writers = csv.writer(r)
writers.writerows(caseList)
# Write the domains and dns resolvers to new output csv
with open(outputFile,newline="") as f:
writer = csv.writer(f)
writer.writerow(fields)
writer.writerow(zip(case_list,caseList))
exit()
感谢您的帮助
解决方法
与同事讨论后，我能够解决我的问题，仅出于此目的，如果有人要出于类似的需要使用此代码（我们将其用于DMARC），我将发布整个代码：
import dns.resolver
import csv
import os
from os.path import dirname,abspath
# Setting Variables
current_path = dirname(abspath(__file__))
domainFName = '{0}/domains.csv'.format(current_path)
outputFile = '{0}/output.csv'.format(current_path)
dnsList = '{0}/dnslist.csv'.format(current_path)
backupCSV = '{0}/backup-output.csv'.format(current_path)
case_list = []
dns_list = []
fields = ['Domains','DNS Resolvers']
csv_output = zip(case_list,dns_list)
domainAmount = 0
rd = 00
dnresolve = 00
part = 0
percentL = []
percents = [10,20,30,40,50,60,70,80,90,95,96,97,98,99]
percentList = []
floatingList = []
floatPart = []
x = 00
keyAzure = 'azure'
keyCSC = 'csc'
while x < .99:
x += .01
floatingList.append(x)
# THIS IS THE CODE FOR WRITING CSV FILES INTO LISTS - LABELED AS #1
print("FILES MUST BE CSV,WILL RETURN AN ERROR IF NOT. LEAVE OFF .CSV")
# Here we will gather the input of which csv file to use. If none are entered,it will use domains.csv
print("Enter your output file name (if blank will use default):")
UserFile = str(input("Enter your filename: ") or "domains")
fullFile = UserFile + '.csv'
domainFName = fullFile.format(current_path)
# Here will will specify the output file name. If the file is not created,it will create it
# If the user enters not data,the default will be used,output.csv
print("Enter your output file name (if blank will use default):")
UserOutput = str(input("Enter your filename: ") or "output")
fullOutput = UserOutput + '.csv'
outputFIle = fullOutput.format(current_path)
# Read in all domains from csv into list
with open(domainFName,'r') as file:
for line in csv.reader(file):
case_list.append(line)
domainAmount += 1
print("Starting the resolver:")
print("You have " + str(domainAmount) + " Domains to resolve:")
# THIS IS THE END OF THE CODE FOR WRITING CSV FILES INTO LISTS - LABELED AS #1
# THE CODE BELOW IS WORKING FOR FINDING THE DNS RESOLVERS - LABELED AS #2
# Function for matching domains to DNS resolvers
def dnsResolver (domain):
try:
answers = dns.resolver.resolve(domain,'NS')
for server in answers:
dns_list.append(server.target)
except:
dns_list.append("Did Not Resolve")
print("Now resolving domains to their DNS name:")
print("This will take a few minutes. Check out the progress bar for your status:")
print("I have resolved 0% Domains:")
# This code is for finding the percentages for the total amount of domains to find progress status
def percentageFinder(percent,whole):
return (percent * whole) / 100
def percentGetter(part,whole):
return (100 * int(part)/int(whole))
for x in percents:
percentList.append(int(percentageFinder(x,domainAmount)))
percentL = percentList
#End code for percentage finding
for firstdomain in case_list:
for domain in firstdomain:
dnsResolver(domain)
if dnsResolver != "Did Not Resolve":
rd += 1
else:
dnresolve += 1
# Using w+ to overwrite all Domain Names &
with open(dnsList,'w+',newline="") as r:
writers = csv.writer(r)
writers.writerows(dns_list)
# This is used for showing the percentage of the matching you have done
part += 1
if part in percentL:
total = int(percentGetter(part,domainAmount))
print("I Have Resolved {}".format(total) + "%" + " Domains:")
else:
pass
print("Resolving has completed. Statistics Below:")
print("------------------------------------------")
print("You had " + str(rd) + " domains that resolved.")
print("You had " + str(dnresolve) + " domains that did NOT resolve")
# THIS IS THE END OF THE WORKING CODE - LABELED AS #2
# Write the dns Resolver names into a new csv file
print("Now writing your domains & their DNS Name to an Output File:")
with open(outputFile,newline="\n") as f:
writer = csv.writer(f,dialect='excel')
writer.writerow(fields)
for row in csv_output:
writer.writerow(row)
print("Writing a backup CSV File")
# Using this to create a backup in case to contain all domains,and all resolvers
# If someone runs the script with a small list of domains,still want to keep a
# running list of everything in case any questions arise.
# This is done by using 'a' instead of 'w' or 'w+' done above.
with open(backupCSV,'w',newline="") as f:
writer = csv.writer(f,dialect='excel')
writer.writerow(fields)
for row in csv_output:
writer.writerow(row)
print("Your backup is now done processing. Exiting program")
# Sort the files by keyword,in this case the domain being azure or csc
for r in dns_list:
if keyAzure in r:
for x in keyAzure:
FileName = x
print(FileName)
exit()
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