a bundle of `config.ru`, testing rack middlewares.

config.auth.ru

use Rack::Auth::Basic, 'app' do |usr, pwd|
  usr == 'wendi' && pwd == '123123'
end

# => Request Headers
#    Authorization:Basic d2VuZGk6MTIzMTIz

# realm = 'Hello, wrold'
# opaque = '1234567890'
# use Rack::Auth::Digest::MD5, realm, opaque do |password|
#   'secret'
# end
#
# => Request Headers
#    Authorization:Digest username="wendi", realm="Hello, wrold", nonce="MTQxMTQ1NTA3NyBmODlkYWNjNGQ4ZGVkMDFmYjYxZDcwZTBiMWE1OGMxMA==", uri="/", response="5ef8a4dd410fd510e0fee15bb3563815", opaque="f5bb0c8de146c67b44babbf4e6584cc0", qop=auth, nc=00000003, cnonce="66a95969acfd54bf"

run proc {
  [200, {'Content-Type' => 'text/html'}, ['Hello, world']]
}

config.benchmark.ru

require 'rack/lobster'

use Rack::ContentType

class BenchMarker
  def initialize(app, runs = 100)
    @app, @runs = app, runs
  end

  def call(env)
    t = Time.now

    result = nil
    @runs.times { result = @app.call(env) }

    t2 = Time.now - t

    STDOUT.puts <<OUTPUT
Benchmark:
  #{@runs} runs
  #{t2.to_f} seconds total
  #{t2.to_f * 1000.0 / @runs} milisec/run
OUTPUT

    result
  end
end

use BenchMarker, 10_000

run Rack::Lobster.new

# Benchmark:
#   10000 runs
#   0.284061 seconds total
#   0.028406100000000004 milisec/run

config.calling_order.ru

class Foo
  def initialize(app, arg = '')
    puts '--> Foo#init'
    @app = app
    @arg = arg
    puts '--> Foo#initend'
  end

  def call(env)
    puts '--> Foo#call'
    status, headers, content = @app.call(env)
    content[0] += "#{@arg}"
    puts '--> Foo#callend'
    [ status, headers, content ]
  end
end

class Bar
  def initialize(app, arg = '')
    puts '--> Bar#init'
    @app = app
    @arg = arg
    puts '--> Bar#initend'
  end

  def call(env)
    puts '--> Bar#call'
    status, headers, content = @app.call(env)
    content[0] += "#{@arg}"
    puts '--> Bar#callend'
    [ status, headers, content ]
  end
end

use Foo, ', foo'
use Bar, ', bar'

run proc {
  puts '--> main#call'
  [200, {'Content-Type' => 'text/html'}, ['Hello, world']]
}

# $ rackup
# --> Bar#init
# --> Bar#initend
# --> Foo#init
# --> Foo#initend
# Thin web server (v1.6.1 codename Death Proof)
# Maximum connections set to 1024
# Listening on 0.0.0.0:9292, CTRL+C to stop
#
# --> Foo#call
# --> Bar#call
# --> main#call
# --> Bar#callend
# --> Foo#callend
# 127.0.0.1 - wendi [23/Sep/2014 15:56:20] "GET / HTTP/1.1" 200 - 0.0013

config.lobster.ru

require 'rack/lobster'

use Rack::ContentType

map '/lobster' do
  use Rack::ShowExceptions
  run Rack::Lobster.new
end

map '/lobster/but_not' do
  run proc {
    [200, {}, ["Really not a lobster"]]
  }
end

run proc {
  [200, {}, ["Not a lobster"]]
}