Check and email your recent, unread links on Pinboard.in

pinboard_unread.rb

require 'rubygems'
require 'open-uri'
require 'nokogiri'
require 'mechanize'
require 'chronic'
require 'tlsmail'
require 'time'

agent = WWW::Mechanize.new

# Logging in to pinboard
page = agent.get('http://pinboard.in')
login_form = page.form('login')
login_form.username = 'USERNAME'
login_form.password = 'PASSWORD'
page = agent.submit(login_form)

# Going to the unread links page
doc = agent.click page.link_with(:text => 'unread')

new_bookmarks = []

# Getting the list of unread links
bookmarks = doc.search('div.bookmark')
bookmarks.each do |bookmark|
  link_title = bookmark.search('a.bookmark_title').first.content
  link_address = bookmark.search('a.bookmark_title').first.attributes['href'].to_s.sub(/^.*url=/, '')
  link_time = bookmark.search('.when').first.content
  new_bookmarks << {:title => link_title, :address => link_address, :time => link_time} if Chronic.parse(link_time) > Chronic.parse('yesterday')
end

links = ""
new_bookmarks.each do |bookmark| 
  links << "Link: " + bookmark[:title] + "\nAddress: " + bookmark[:address] + "\n\n"
end

# Create and send an email with the new links via gmail
content = <<EOF
From: from@gmail.com
To: to@gmail.com
Subject: Unread links for #{Time.now.strftime("%A %B %d, %Y")}
Date: #{Time.now.rfc2822}

Here are your new links for #{Time.now.strftime("%A %B %d, %Y")}: 

#{links}
EOF

Net::SMTP.enable_tls(OpenSSL::SSL::VERIFY_NONE)
Net::SMTP.start('smtp.gmail.com', 587, 'gmail.com', 'FROM@gmail.com', 'PASSWORD', :login) do |smtp|
  smtp.send_message(content, 'FROM@gmail.com', 'TO@gmail.com')
end