Filter ip in the list

DineshShrestha

defmodule PurgeOfIps do
# create the module started by application.ex each hour, starts a purge of Ips not seen last 7 days from the list
# get list of ips
def ip_not_listed_7_days do
# get list of ips
seconds_in_seven_days = 604_800
ips = File.read!(“hardcodedList.txt”)
# start the purge of ips not seen last 7 days every hour
ips
|> String.split(~r/\W/, trim: true)
end)
end
end
I have the ips = [
[“192.168.44.152”, “2021-12-16”, “12:44:11.822908”],
[“192.168.44.163”, “2021-12-16”, “12:44:11.822924”],
[“192.168.44.164”, “2021-12-16”, “12:44:11.822931”],
[“192.168.44.165”, “2021-12-16”, “12:44:11.822937”],
[“192.168.44.166”, “2021-12-16”, “12:44:11.822943”],
[“192.168.44.167”, “2021-12-16”, “12:44:11.822962”],
[“192.168.44.168”, “2021-12-16”, “12:44:11.822984”],
[“192.168.44.169”, “2021-12-16”, “12:44:11.822991”],
[“192.168.44.151”, “2021-12-16”, “12:44:11.823005”],
[“192.168.44.153”, “2021-12-16”, “12:44:11.823012”]
]
How to check the list every hour and filter out the ip not seen in last 7 days??

15 comments

#troubleshooting #learning-elixir #learning

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2021-12-21 14:00:51 UTC

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dimitarvp

Can you please format your code with triple backticks – ``` – at the top and the bottom of the code block?

Post #1

ImNotAVirus

And can you please also provide your hardcodedList.txt file?

Post #2

DineshShrestha

it is the same ips in that txt file.

Post #3

dimitarvp

Can you show us what have you tried?

Post #4

DineshShrestha

I have written in the file with ip and timestamp. which i mentioned in previous comment with code.

Post #5

eksperimental

Hi.

use parts: 2 in your split function to only split into two items. first will be the IP address, second the date, which you should convert to DateTime or NaiveDateTime.

2 . write a function that will filter your list of entries, you can use the DateTime.compare or DateTime.diff and list the ones that are older than 7 days.
After that run Enum.uniq to return unique ip addresses, and that is your solution to your problem.

Let us know if you have any more questions.

Post #6

DineshShrestha

Thank you for the help. I will try to complete it.

Post #7

DineshShrestha

But there is a list of list. How do i do it?? For example: [
[“192.168.44.163”, “2021-12-16”, “12:44:11.822924”],
[“192.168.44.164”, “2021-12-16”, “12:44:11.822931”],
[“192.168.44.165”, “2021-12-16”, “12:44:11.822937”],
[“192.168.44.166”, “2021-12-16”, “12:44:11.822943”],
[“192.168.44.167”, “2021-12-16”, “12:44:11.822962”],
[“192.168.44.168”, “2021-12-16”, “12:44:11.822984”],
[“192.168.44.169”, “2021-12-16”, “12:44:11.822991”],
[“192.168.44.151”, “2021-12-16”, “12:44:11.823005”],
[“192.168.44.153”, “2021-12-16”, “12:44:11.823012”]
]
after i implement String.split function. Can you please elaborate it?? I am new to this language.