parikh5555

from Crypto.Cipher import AES
import base64
import os

# the block size for the cipher object; must be 16, 24, or 32 for AES
BLOCK_SIZE = 32

# the character used for padding--with a block cipher such as AES, the value
# you encrypt must be a multiple of BLOCK_SIZE in length.  This character is
# used to ensure that your value is always a multiple of BLOCK_SIZE

jhamrick

#!/usr/bin/env bash
#
# Generate a set of TLS credentials that can be used to run development mode.
#
# Based on script by Ash Wilson (@smashwilson)
# https://github.com/cloudpipe/cloudpipe/pull/45/files#diff-15
#
# usage: sh ./genkeys.sh NAME HOSTNAME IP

set -o errexit

caseywatts

Short link to this page: caseywatts.com/quicktime

Other gists & tricks: http://caseywatts.com/gists-and-tricks

Unrelated update: my book is out! Debugging Your Brain is an applied psychology / self-help book

Quicktime + Hangouts Recording

Scenario: You want to talk with someone over google hangouts (like for a user study), and you want to record BOTH:

srmds

You can check here for getting the latest version. Change the wget url to download newer versions.

Install instructions
wkhtmltopdf 0.12.6 - Ubuntu 22.04 x64
wkhtmltopdf 0.12.5 - Ubuntu 18.04 x64
wkhtmltopdf 0.12.4 - Ubuntu 16.04 x64
wkhtmltopdf 0.12.5 - Ubuntu 16.04 x64
wkhtmltopdf 0.12.6 - macOS Ventura 13.6

mikelehen

/**
 * Fancy ID generator that creates 20-character string identifiers with the following properties:
 *
 * 1. They're based on timestamp so that they sort *after* any existing ids.
 * 2. They contain 72-bits of random data after the timestamp so that IDs won't collide with other clients' IDs.
 * 3. They sort *lexicographically* (so the timestamp is converted to characters that will sort properly).
 * 4. They're monotonically increasing.  Even if you generate more than one in the same timestamp, the
 *    latter ones will sort after the former ones.  We do this by using the previous random bits
 *    but "incrementing" them by 1 (only in the case of a timestamp collision).
 */

giannisp

After automatically updating Postgres to 10.0 via Homebrew, the pg_ctl start command didn't work.
The error was "The data directory was initialized by PostgreSQL version 9.6, which is not compatible with this version 10.0."

Database files have to be updated before starting the server, here are the steps that had to be followed:

# need to have both 9.6.x and latest 10.0 installed, and keep 10.0 as default
brew unlink postgresql
brew install postgresql@9.6
brew unlink postgresql@9.6
brew link postgresql

bradmontgomery

Setting up a SSL Cert from Comodo

I use Namecheap.com as a registrar, and they resale SSL Certs from a number of other companies, including Comodo.

These are the steps I went through to set up an SSL cert.

Purchase the cert

VladimirPal

# Boolean
op.add_column('projects', sa.Column('is_closed', sa.Boolean(), server_default=sa.schema.DefaultClause("0"), nullable=False))

# DateTime
op.add_column('projects_users', sa.Column('created_at', sa.DateTime(), server_default=sa.func.current_timestamp(), nullable=False))

davidpiesse

// https://davidpiesse.github.io/tailwind-md-colours/
//
//Notes
//
//All colours are generated from Material Design Docs
//Colours have a base, a set of shades (50-900) accent colours
//In addition a companion set of contrast colours are included for colouring text / icons
// Example usage
// class="w-full bg-red-600 text-red-600-constrast"

cecilemuller

How to setup Let's Encrypt for Nginx on Ubuntu 18.04 (including IPv6, HTTP/2 and A+ SLL rating)

---

Virtual hosts

Let's say you want to host domains first.com and second.com.

Create folders for their files: