Class: Defile::App

Inherits:
Object
  • Object
show all
Defined in:
lib/defile/app.rb

Defined Under Namespace

Classes: Proxy

Instance Method Summary collapse

Constructor Details

#initialize(logger: nil, allow_origin: nil) ⇒ App

Returns a new instance of App.



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# File 'lib/defile/app.rb', line 6

def initialize(logger: nil, allow_origin: nil)
  @logger = logger
  @logger ||= ::Logger.new(nil)
  @allow_origin = allow_origin
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/defile/app.rb', line 28

def call(env)
  @logger.info { "Defile: #{env["REQUEST_METHOD"]} #{env["PATH_INFO"]}" }
  if env["REQUEST_METHOD"] == "GET"
    backend_name, *process_args, id, filename = env["PATH_INFO"].sub(/^\//, "").split("/")
    backend = Defile.backends[backend_name]

    if backend and id
      @logger.debug { "Defile: serving #{id.inspect} from #{backend_name} backend which is of type #{backend.class}" }

      file = backend.get(id)

      unless process_args.empty?
        name = process_args.shift
        unless Defile.processors[name]
          @logger.debug { "Defile: no such processor #{name.inspect}" }
          return not_found
        end
        file = Defile.processors[name].call(file, *process_args)
      end

      peek = begin
        file.read(Defile.read_chunk_size)
      rescue => e
        log_error(e)
        return not_found
      end

      headers = {}
      headers["Access-Control-Allow-Origin"] = @allow_origin if @allow_origin

      [200, headers, Proxy.new(peek, file)]
    else
      @logger.debug { "Defile: must specify backend and id" }
      not_found
    end
  elsif env["REQUEST_METHOD"] == "POST"
    backend_name, *rest = env["PATH_INFO"].sub(/^\//, "").split("/")
    backend = Defile.backends[backend_name]

    return not_found unless rest.empty?
    return not_found unless backend and Defile.direct_upload.include?(backend_name)

    file = backend.upload(Rack::Request.new(env).params.fetch("file").fetch(:tempfile))
    [200, { "Content-Type" => "application/json" }, [{ id: file.id }.to_json]]
  else
    @logger.debug { "Defile: request methods other than GET and POST are not allowed" }
    not_found
  end
rescue => e
  log_error(e)
  [500, {}, ["error"]]
end