将域与 DNS 解析器名称匹配 - Python

Match Domains to DNS Resolver Name - Python

我对 Python 还是个新手,一直在为工作而努力,还有一些副项目用它来自动化我的 Plex 媒体管理任务。

我正在尝试编写一个 python 脚本,允许我从 csv 文件中获取一组域列表,将它们与它们的 dns 名称匹配:示例(Plex.tv 使用 'NS' 会 return jeremy.ns.cloudflare.com)

我的主要目标是从 csv 中读取域列表

运行 我将这些域与 dns 解析器名称匹配的代码

将这些写入新的 CSV 文件,然后将两者压缩在一起,这就是我的代码中的内容。

我遇到了一些问题。

  1. Visual Code 不允许导入 dns.resolver(这不是什么大问题,但如果您知道该问题的修复方法,我就不必从命令行 运行 它)
  2. 匹配域到他们的 DNS 解析器抛出错误“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,'w', newline="") as f:
    writer = csv.writer(f)
    writer.writerow(fields)
    writer.writerow(zip(case_list,caseList))

exit()

感谢您的帮助

在与 co-worker 讨论后,我解决了我的问题,如果有人想将此代码用于类似需求(我们将其用于 DMARC),仅此而已,我将 post 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,'w+', 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()