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path: root/test/net/http/utils.rb
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require 'webrick'
begin
  require "webrick/https"
rescue LoadError
  # SSL features cannot be tested
end
require 'webrick/httpservlet/abstract'

module TestNetHTTPUtils
  def start(&block)
    new().start(&block)
  end

  def new
    klass = Net::HTTP::Proxy(config('proxy_host'), config('proxy_port'))
    http = klass.new(config('host'), config('port'))
    http.set_debug_output logfile()
    http
  end

  def config(key)
    self.class::CONFIG[key]
  end

  def logfile
    $DEBUG ? $stderr : NullWriter.new
  end

  def setup
    spawn_server
  end

  def teardown
    @server.shutdown
    until @server.status == :Stop
      sleep 0.1
    end
    # resume global state
    Net::HTTP.version_1_2
  end

  def spawn_server
    server_config = {
      :BindAddress => config('host'),
      :Port => config('port'),
      :Logger => WEBrick::Log.new(NullWriter.new),
      :AccessLog => [],
      :ShutdownSocketWithoutClose => true,
      :ServerType => Thread,
    }
    if defined?(OpenSSL) and config('ssl_enable')
      server_config.update({
        :SSLEnable      => true,
        :SSLCertificate => config('ssl_certificate'),
        :SSLPrivateKey  => config('ssl_private_key'),
      })
    end
    @server = WEBrick::HTTPServer.new(server_config)
    @server.mount('/', Servlet)
    @server.start
    n_try_max = 5
    begin
      TCPSocket.open(config('host'), config('port')).close
    rescue Errno::ECONNREFUSED
      sleep 0.2
      n_try_max -= 1
      raise 'cannot spawn server; give up' if n_try_max < 0
      retry
    end
  end

  $test_net_http = nil
  $test_net_http_data = (0...256).to_a.map {|i| i.chr }.join('') * 64
  $test_net_http_data_type = 'application/octet-stream'

  class Servlet < WEBrick::HTTPServlet::AbstractServlet
    def do_GET(req, res)
      res['Content-Type'] = $test_net_http_data_type
      res.body = $test_net_http_data
    end

    # echo server
    def do_POST(req, res)
      res['Content-Type'] = req['Content-Type']
      res.body = req.body
    end
  end

  class NullWriter
    def <<(s) end
    def puts(*args) end
    def print(*args) end
    def printf(*args) end
  end
end