filebuffer | package implementing a few file-like interfaces

I never thought I would have to turn to SO to solve this.

Alright so for more insight I am making my own encryption program. I'm not trying to make it good or anything it's just a personal project. What this program is doing is that it's flipping certain bits in every single byte of the character making it unreadable.

However every time I run the program and decrypt I get weird characters on the output. These characters seem to match the amount of lines as following:

^^ text that I want to encrypt

^^ after encrypting. (a lot of the text got cut off)

^^ after decrypting. there's 10 null character corresponding to the amount of newlines. there also seems to be another weird '�' character. Where are these bytes coming from??

I've tried a lot of stuff. Here is my code if anyone needs it (it's compiled with default flags):

Using Swift, I need to read integers from a binary files but can't read whole files into memory because of their size. I have 61G bytes(7.7 billion Integers) of data written into a dozen files of various sizes. The largest is 18G bytes(2.2 billion Integers). Some of the files might be read completely into memory but the largest is greater than available RAM.

Insert File IO Rant Here.

I have written the code to write the file 10 Million bytes at a time and it works well. I wrote this as a class but none of the rest of the code is object oriented. This is not an App so there is no idle time to do memory cleanup. Here is the code:

I have a website users can create files that are stored for them as PDF's. I want to block direct access to those files for the general user but still allow direct access for the admin. So that random users cannot just type in something like www.website.com/files/hello.pdf and gain access to any user's files. But I want the admin to be able to access that file.

I have tried Hidden segments in IIS but that blocks the entire folder for everyone, including the admin. I have tried to figure out how to use request filtering rules but I just can't seem to get it right.

A user's role is stored as a Session[]. if that session is "userA" role then they are a general user and I do not want them to have direct access to the file. But if that session is "userB" role then they are an admin and I want them to have direct access to the file. e.g. www.website.com\files\hello.pdf

My other issue is that the PDF Files are within a GridView, so more than one file will be embedded into multiple rows. I have figured out how to embed the PDF into the ASPX by converting the PDF Info to Base64 and then inserting that data into the source of the embed tag. The issue now is that this is some heavy lifting for the browser when loading more than 10 rows from the GridView. So it works but I imagine there is a more memory-efficient way of doing this.

This is what I did so far

I'm at a loss here. My .env file is in my root directory, as instructed. I've tried this by way of both require('dotenv').config() and import dotenv from 'dotenv', followed by dotenv.config(). I've tried passing config an absolute path, as you will see. Trying to console log the environment variables always returns undefined. I tried checking for dotenv.error, as you will also see, and the condition doesn't trigger.

All I see is undefined. It's as if my .env file doesn't even exist.

Here is my code in its current state. Any help would be appreciated.

I have a bit of Javascript code, which is not behaving as I'd expect it to. Can someone tell me what is going on here?

Here's a simplified version:

For a webapp I'm building I need to integrate file sharing capabilities. This is now finally possible since the IOS 15 release. However, I only got it partially working. When I share the file with email or messages it works fine. But when I try to share with whatsapp, signal or threema it will only share the title, not the actual file. I don't see any errors in the console or any failed network requests.

I'm trying to download a file (without saving it) and convert it, but readFileSync throws an error that the file can't be found: "Error: ENOENT: no such file or directory, open 'https://s3.amazonaws.com/appforest_uf/f1631452514756x615162562554826200/testdoc.txt'"

Code:

Since my last question was closed because of bad code style and typo, I reviewed it and ask for help again.

I'm trying to resolve a .exe file with PE format. Here is part of my code

I'm using node.js with typescript for a server which receives WAV files and I'm trying to check wether a WAV file is valid, however I'm not sure exactly how the best way to do it would be, I have figured out how to check a few things but I'm not sure that I'm not doing it correctly & may be doing a few unneeded checks and am probably missing something.