Class: Imageproxy::Server

Inherits:
Object
  • Object
show all
Defined in:
lib/imageproxy/server.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Server 



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# File 'lib/imageproxy/server.rb', line 11

def initialize
  @file_server = Rack::File.new(File.join(File.expand_path(File.dirname(__FILE__)), "..", "public"))
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/imageproxy/server.rb', line 15

def call(env)
  request = Rack::Request.new(env)
  options = Options.new(request.path_info, request.params)
  user_agent = request.env["HTTP_USER_AGENT"]
  cachetime = config(:cache_time) ? config(:cache_time) : 86400

  case options.command
    when "convert", "process", nil
      check_signature request, options
      check_domain options
      check_size options

      file = convert_file(options, user_agent)
      class << file
        alias to_path path
      end

      file.open
      [200, {"Cache-Control" => "max-age=#{cachetime}, must-revalidate"}.merge(content_type(file, options)), file]
    when "identify"
      check_signature request, options
      check_domain options

      [200, {"Content-Type" => "text/plain"}, [Identify.new(options).execute(user_agent)]]
    when "selftest"
      [200, {"Content-Type" => "text/html"}, [Selftest.html(request, config?(:signature_required), config(:signature_secret))]]
    else
      @file_server.call(env)
  end
rescue
  STDERR.puts "Request failed: #{options}"
  STDERR.puts $!
  STDERR.puts $!.backtrace.join("\n") if config?(:verbose)
  [500, {"Content-Type" => "text/plain"}, ["Error (#{$!})"]]
end