Simple cookie and modhash generation script.

gistfile1.rb

# Simple cookie and modhash generation script.
#
# Takes a username and password on the command line and generates a
# corresponding long-lived password.

require 'io/console'
require 'multi_json'
require 'net/http'

printf 'Username: '
user = STDIN.cooked(&:gets).chomp

printf 'Password: '
passwd = STDIN.noecho(&:gets).chomp
printf "\n\n"

http = Net::HTTP.new('www.reddit.com', 80)
headers = {'User-Agent' => "Simple Reddit login example, written by /u/dobs"}
response = http.post('/api/login', "user=#{user}&passwd=#{passwd}&rem=true&api_type=json", headers)

begin
  data = MultiJson.load(response.body)['json']['data']

  puts "Cookie: #{response.get_fields('set-cookie').first}"
  puts "Modhash: #{data['modhash']}"
rescue
  MultiJson.load(response.body)['json']['errors'].each do |error|
    puts error.join(': ')
  end
end