tobihans

How to create a self-signed certificate request for a domain and all its subdomains with OpenSSL.

The configuration file

The certificate.conf can be used to create a configuration for a certificate. Its content can look as follows:

[req]
default_bits = 2048
default_md = sha256
prompt = no                                   # configuration for openssl command to not prompt, it will take req_distinguished_name instead
distinguished_name = req_distinguished_name   # the information required to generate a self-signed certificate

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Openssl commands:

openssl genrsa -out self-ssl.key
openssl req -new -key self-ssl.key -out self-ssl.csr -config csr.conf
openssl x509 -req -days 365 -in self-ssl.csr -signkey self-ssl.key -out self-ssl.crt -extensions req_ext -extfile csr.conf

Sign from Root CA: openssl x509 -req -days 365 -extensions req_ext -extfile csr.conf -CA RootCA.crt -CAkey RootCA.key -in self-ssl.csr -out self-ssl.crt

tobihans

# best practice: linux
nano ~/.pgpass
*:5432:*:username:password
chmod 0600 ~/.pgpass

# best practice: windows
edit %APPDATA%\postgresql\pgpass.conf
*:5432:*:username:password

# linux

tobihans

type CamelCase<S extends string> = S extends `${infer P1}_${infer P2}${infer P3}`
? `${Lowercase<P1>}${Uppercase<P2>}${CamelCase<P3>}`
: Lowercase<S>

type KeysToCamelCase<T> = {
  [K in keyof T as CamelCase<string & K>]: T[K]
}


type CamelToSnakeCase<S extends string> = S extends `${infer T}${infer U}` ?

tobihans

JWT Auth + Refresh Tokens in Rails

This is just some code I recently used in my development application in order to add token-based authentication for my api-only rails app. The api-client was to be consumed by a mobile application, so I needed an authentication solution that would keep the user logged in indefinetly and the only way to do this was either using refresh tokens or sliding sessions.

I also needed a way to both blacklist and whitelist tokens based on a unique identifier (jti)

Before trying it out DIY, I considered using:

tobihans

local servers = {
  "elixirls",
  "gopls",
  "html",
  "tinymist",
  "vtsls",
  "lua_ls",
  "pyrefly",
  "ruby_lsp",
}

tobihans

shadcn/ui multi tag input component

A react tag input field component using shadcn, like one you see when adding keywords to a video on YouTube. Usable with Form or standalone.

Preview

Standalone Usage

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People

:bowtie:	😄 :smile:	😆 :laughing:
😊 :blush:	😃 :smiley:	☺️ :relaxed:
😏 :smirk:	😍 :heart_eyes:	😘 :kissing_heart:
😚 :kissing_closed_eyes:	😳 :flushed:	😌 :relieved:
😆 :satisfied:	😁 :grin:	😉 :wink:
😜 :stuck_out_tongue_winking_eye:	😝 :stuck_out_tongue_closed_eyes:	😀 :grinning:
😗 :kissing:	😙 :kissing_smiling_eyes:	😛 :stuck_out_tongue:

tobihans

# lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 0424:9512 Standard Microsystems Corp.
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp.
Bus 001 Device 006: ID 05e3:0606 Genesys Logic, Inc. USB 2.0 Hub / D-Link DUB-H4 USB 2.0 Hub
Bus 001 Device 009: ID 1130:f211 Tenx Technology, Inc. TP6911 Audio Headset

# cat d.py
import pyaudio

tobihans

# Collection of one line text art (◕‿◕✿)

Collection of emojis and one line text art like (╯°□°）╯︵ ┻━┻ 🤗

ּבּ_בּ
טּ_טּ
כּ‗כּ
לּ_לּ
מּ_מּ
סּ_סּ