Rakefile

require "rake"
require "json"

BLOCKERS = [{
  # Block web fonts on every page except locally (for web development) and on JustFont, which sells
  # web fonts.
  "url-filter" => ".",
  "resource-type" => ["font"],
  "unless-domain" => ["justfont.com", "localhost"]
}, {
  # Block everything loaded from Google's Fonts service (including CSS).
  "url-filter" => "/fonts\\.googleapis\\.com/"
}, {
  # Block Adobe TypeKit.
  "url-filter" => "/use\\.typekit\\.com/",
  "resource-type" => ["font", "raw", "style-sheet"],
  "unless-domain" => ["typekit.com"]
}]

EXCEPTIONS = [
  # Generic exception for icon fonts.
  /\..*\/.*icon/,
  # Generic exception for Font Awesome.
  /\..*\/.*awesome/,
  # Generic exception for SS Pika.
  /\..*\/.*ss-pika/,
  # Generic exception for files generated by IcoMoon.
  /\..*\/.*icomoon/,
  # Exception for icon font on imgur.com.
  # https://github.com/lurado/SansFonts/issues/7
  /fonts\/imgur\./,
  # Exception for icon font on hipchat.com and hosted HipChat instances.
  # https://github.com/lurado/SansFonts/issues/4
  /fonts\/hipchat\./,
  # Exception for icon font on telekom.de.
  # https://github.com/lurado/SansFonts/issues/9
  /-logo\./,
  # Generic exception for Fontastic.
  /fontastic/,
  # Generic exception for PictoFont.
  /pictofont\./,
  # Generic exception for Fontello.
  # https://github.com/lurado/SansFonts/issues/21
  /fontello/,
  # Generic exception for SS Standard.
  # https://github.com/lurado/SansFonts/issues/26
  /ss-standard\./,
  # Generic exception for the Elegant Themes icon font.
  # https://github.com/lurado/SansFonts/issues/24
  /ETmodules_/,
  # Generic exception for the Projekktor video player.
  # https://github.com/lurado/SansFonts/issues/13
  /projekktor\./,
  # Generic exception for the mol video player.
  # https://github.com/lurado/SansFonts/issues/27
  /\/mol-video\./,
  # Exception for icon font on atlasobscura.com.
  # https://github.com/lurado/SansFonts/issues/30
  /atlasobscura\./,
  # Exception for icon fonts on Jimdo-hosted websites.
  # https://github.com/lurado/SansFonts/issues/32
  /assets\.jimstatic\.com/,
  # Exception for icon fonts on the Matador network.
  # https://github.com/lurado/SansFonts/issues/20
  /\/fonts\/matador-network\./,
  # Exception for icon fonts on bauhaus.de.
  # https://github.com/lurado/SansFonts/issues/29
  /\/fonts\/bauhaus\./,
  # Exception for icon fonts on imgur.com
  # https://github.com/lurado/SansFonts/issues/28
  /\/fonts\/imgur-/,
  # Exception for icon fonts on airbnb.com.
  # https://github.com/lurado/SansFonts/issues/23
  /\/fonts\/airglyphs-/,
  # Exception for icon fonts on bloomberg.com.
  # https://github.com/lurado/SansFonts/issues/19
  /\/fonts\/Bloomberg/,
  # Exception for icon fonts on blendle.de.
  # https://github.com/lurado/SansFonts/issues/18
  /\/fonts\/blendle\/blendle\./,
  # Exception for icon fonts on heroku.com.
  # https://github.com/lurado/SansFonts/issues/17
  /\/fonts\/heroku-dc\./,
  # Exception for icon fonts on zapier.com.
  # https://github.com/lurado/SansFonts/issues/16
  /\/fonts\/zapier\./,
  # Exception for icon fonts on gsmarena.com.
  # https://github.com/lurado/SansFonts/issues/10
  /\/fonts\/gsmarena\./,
  # Exception for icon fonts on hongkiat.com.
  # https://github.com/lurado/SansFonts/issues/44
  /\/fonts\/hongkiatcom\./,
  # Exception for icon fonts on pr0gramm.com.
  # https://github.com/lurado/SansFonts/issues/40
  /\/fonts\/pict0gramm\./,
  # Exception for icon fonts on opodo.com.
  # https://github.com/lurado/SansFonts/issues/39
  /odistatic\.net.*fonts\/opodo.*/,
  # Exception for icon fonts in the AWS console.
  /cloudfront\.net\/aws-console/,
  # Exception for icon fonts on *.dev, for local development.
  # https://github.com/lurado/SansFonts/issues/35
  /\.dev\//,
  # Exception for Apple's web fonts, because without them, all text on *.apple.com will be rendered
  # using their icon font.
  # https://github.com/lurado/SansFonts/issues/49
  /apple\.com\/wss\/fonts\//,
]

file "blockerList.json" => "Rakefile" do
  blockers = BLOCKERS.map do |blocker|
    {
      "action" => { "type" => "block" },
      "trigger" => blocker
    }
  end
  
  exceptions = EXCEPTIONS.map do |exception|
    {
      "action" => { "type" => "ignore-previous-rules" },
      "trigger" => { "url-filter": exception.inspect[1..-2] }
    }
  end
  
  json = JSON.pretty_generate(blockers + exceptions, :indent => "    ")
  
  File.write("blockerList.json", json)
end

task :default => "blockerList.json"