akagr

/*
I was looking to try a non-kindle e-reader, but my library kept weighing me down. While I had calibre and the de-drm plugin, I found the downloaded books on my kindle were in kfx format and weren't playing well with calibre, even with the kfx input plugin.
Further, I found downloading books directly from web (Amazon > content library) did give me an azw3 file, which works well with de-drm.

To automate part of the process, I wrote a short js script. It doesn't walk through all the pages in content library, but it does download all the books currently visible on the list. Amazon lets us view 25 books per page, so I just had to switch pages, run script, repeat.
The meat of this script is constructing the url used to start a download. Device type, serial number, customer id etc. will be different for everyone, so it's best to download one book manually and check the network inspector for the request details. Apart from the book's `key`, all other details remain same for all the books (at least they did for me

akagr

Renew GPG key

Given that your key has expired.

$ gpg --list-keys
$ gpg --edit-key KEYID

Use the expire command to set a new expire date:

akagr

import logging
from http.client import HTTPConnection

log = logging.getLogger('urllib3')
log.setLevel(logging.DEBUG)

# logging from urllib3 to console
ch = logging.StreamHandler()
ch.setLevel(logging.DEBUG)
log.addHandler(ch)

akagr

Creating self signed certificates with keytool

Content

1. Self signed certificate
2. Multiple domain names
3. Certificates for 2wayTLS
4. Certificate chain

NOTE: Do not use self signed certificates in PRODUCTION, for that use a certificate signed by some CA (Certification Authority), and then avoid man-in-the-middle attack.

akagr

#!/bin/sh

#
# Inspects branch name and checks if it contains a Jira ticket number (i.e. ABC-123).
# If yes, commit message will be automatically prepended with [ABC-123].
#
# Useful for looking through git history and relating a commit or group of commits
# back to a user story.
# Thanks to https://medium.com/bytelimes/automate-issue-numbers-in-git-commit-messages-2790ae6fe071

akagr

(defun divisible (a b)
  (equal 0 (% a b)))

(defun to_s (item) (format "%s" item))

(defun fizzbuzz (num)
  (let* ((fizz (if (divisible num 3) "fizz" ""))
        (buzz (if (divisible num 5) "buzz" ""))
        (combi (concat fizz buzz))
        (result (if (length> combi 0) combi (to_s num))))

akagr

-- ███████╗███╗░░░███╗░█████╗░░█████╗░░██████╗
-- ██╔════╝████╗░████║██╔══██╗██╔══██╗██╔════╝
-- █████╗░░██╔████╔██║███████║██║░░╚═╝╚█████╗░
-- ██╔══╝░░██║╚██╔╝██║██╔══██║██║░░██╗░╚═══██╗
-- ███████╗██║░╚═╝░██║██║░░██║╚█████╔╝██████╔╝
-- ╚══════╝╚═╝░░░░░╚═╝╚═╝░░╚═╝░╚════╝░╚═════╝░
--
-- Open this script with 'Script Editor' on MacOS, then save it
-- inside /Applications as an 'Application', not 'Script'.

akagr

 # Just a copy of https://stackoverflow.com/a/30724359/1825727
  def from_hashstring(value)
    json_string = value
                  .gsub(/([{,]\s*):([^>\s]+)\s*=>/, '\1"\2"=>') # Handle ruby symbols as keys
                  .gsub(/([{,]\s*)([0-9]+\.?[0-9]*)\s*=>/, '\1"\2"=>') # Handle numbers as keys
                  .gsub(/([{,]\s*)(".+?"|[0-9]+\.?[0-9]*)\s*=>\s*:([^,}\s]+\s*)/, '\1\2=>"\3"') # Handle symbols as values
                  .gsub(/([\[,]\s*):([^,\]\s]+)/, '\1"\2"') # Handle symbols in arrays
                  .gsub(/([{,]\s*)(".+?"|[0-9]+\.?[0-9]*)\s*=>/, '\1\2:') # Finally, convert => to :

    JSON.parse(json_string)

akagr

Keybase proof

I hereby claim:

• I am akagr on github.
• I am akashagrawal (https://keybase.io/akashagrawal) on keybase.
• I have a public key ASB2jpNzAa37164ZMfrGb0Te3fV4rcXowwYbpKIG-AeTwwo

To claim this, I am signing this object:

akagr

# To get the resolution, multiply 118 by cm. For example, 7 cm image at 300ppi will be 7 * 118 = 826 px
RESOLUTION=826
convert $1 -resize ${RESOLUTION}x${RESOLUTION}^ -gravity center -crop ${RESOLUTION}x${RESOLUTION}+0+0 +repage -blur 0x8 temp.jpg
convert temp.jpg $1 -resize ${RESOLUTION}x -gravity center -composite -matte "./output/$1-out.jpg"