92 lines
1.9 KiB
Ruby
92 lines
1.9 KiB
Ruby
require 'uri'
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require 'net/http'
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require 'rack'
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module Capybara
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class Server
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class Middleware
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attr_accessor :error
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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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begin
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@app.call(env)
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rescue *Capybara.server_errors => e
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@error = e unless @error
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raise e
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end
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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, :host
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def initialize(app, port=Capybara.server_port, host=Capybara.server_host)
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@app = app
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@middleware = Middleware.new(@app)
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@server_thread = nil # suppress warnings
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@host, @port = host, port
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@port ||= Capybara::Server.ports[@app.object_id]
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@port ||= find_available_port
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end
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def reset_error!
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@middleware.error = nil
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end
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def error
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@middleware.error
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end
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def responsive?
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return false if @server_thread && @server_thread.join(0)
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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 SystemCallError
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return false
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end
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def boot
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unless responsive?
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Capybara::Server.ports[@app.object_id] = @port
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@server_thread = Thread.new do
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Capybara.server.call(@middleware, @port)
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end
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Timeout.timeout(60) { @server_thread.join(0.1) until responsive? }
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end
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rescue Timeout::Error
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raise "Rack application timed out during boot"
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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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