CLI for sending URLs to Instapaper

readlater.rb

require 'uri'
require 'net/http'
require 'yaml'
require 'highline/import'

abort 'Usage: readlater <url>' if ARGV.length == 0

# Build Request(s)
api = 'https://www.instapaper.com/api'
uri = URI("#{api}/add")
until ARGV.length == 0 do
    params = { :url => ARGV.shift }
    uri.query = URI.encode_www_form(params)
    http = Net::HTTP.new(uri.host, uri.port)
    http.use_ssl = true

    # Add authentication
    config = ENV['XDG_CONFIG_HOME']
    config = "#{ENV['HOME']}/.config" if config.nil?
    config += '/readlater/config.yml'
    yml = File.exists?(config) ? YAML::load(File.open(config)) : nil
    username = yml.nil? ? ask('Username: ') : yml['username']
    password = yml.nil? ? ask('Password: ') {|q| q.echo = false} : yml['password']
    req = Net::HTTP::Get.new(uri.request_uri)
    req.basic_auth(username, password)

    # Send request
    res = http.request(req)
    case res.code.to_i
    when 201
        next
    when 403
        abort 'Error: Invalid username or password'
    else
        abort "Error: API returned status code: #{res.code}"
    end
end