91 lines
1.8 KiB
Ruby
91 lines
1.8 KiB
Ruby
require 'uri'
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require 'net/http'
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require 'rack'
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require 'capybara/util/timeout'
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module Capybara
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class Server
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class Identify
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def initialize(app)
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@app = app
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end
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def call(env)
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if env["PATH_INFO"] == "/__identify__"
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[200, {}, [@app.object_id.to_s]]
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else
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@app.call(env)
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end
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end
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end
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class << self
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def ports
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@ports ||= {}
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end
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end
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attr_reader :app, :port
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def initialize(app)
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@app = app
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end
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def host
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"127.0.0.1"
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end
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def url(path)
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if path =~ /^http/
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path
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else
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(Capybara.app_host || "http://#{host}:#{port}") + path.to_s
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end
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end
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def responsive?
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res = Net::HTTP.start(host, @port) { |http| http.get('/__identify__') }
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if res.is_a?(Net::HTTPSuccess) or res.is_a?(Net::HTTPRedirection)
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return res.body == @app.object_id.to_s
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end
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rescue Errno::ECONNREFUSED, Errno::EBADF
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return false
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end
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def boot
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if @app
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@port = Capybara::Server.ports[@app.object_id]
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if not @port or not responsive?
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@port = Capybara.server_port || find_available_port
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Capybara::Server.ports[@app.object_id] = @port
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Thread.new do
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Capybara.server.call(Identify.new(@app), @port)
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end
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Capybara.timeout(Capybara.server_boot_timeout) do
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if responsive? then true else sleep(0.5) and false end
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end
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end
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end
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rescue TimeoutError
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puts "Rack application timed out during boot"
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exit
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else
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self
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end
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private
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def find_available_port
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server = TCPServer.new('127.0.0.1', 0)
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server.addr[1]
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ensure
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server.close if server
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end
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end
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end
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