Class: Refile::App

Inherits:
Object
  • Object
show all
Defined in:
lib/refile/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/refile/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/refile/app.rb', line 29

def call(env)
  @logger.info { "Refile: #{env["REQUEST_METHOD"]} #{env["PATH_INFO"]}" }

  backend_name, *args = env["PATH_INFO"].sub(/^\//, "").split("/")
  backend = Refile.backends[backend_name]

  if env["REQUEST_METHOD"] == "GET" and backend and args.length >= 2
    *process_args, id, filename = args
    format = ::File.extname(filename)[1..-1]

    @logger.debug { "Refile: 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
      processor = Refile.processors[name]
      unless processor
        @logger.debug { "Refile: no such processor #{name.inspect}" }
        return not_found
      end
      file = if format
        processor.call(file, *process_args, format: format)
      else
        processor.call(file, *process_args)
      end
    end

    peek = begin
      file.read(Refile.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)]
  elsif env["REQUEST_METHOD"] == "POST" and backend and args.empty? and Refile.direct_upload.include?(backend_name)
    @logger.debug { "Refile: uploading to #{backend_name} backend which is of type #{backend.class}" }

    tempfile = Rack::Request.new(env).params.fetch("file").fetch(:tempfile)
    file = backend.upload(tempfile)

    [200, { "Content-Type" => "application/json" }, [{ id: file.id }.to_json]]
  else
    not_found
  end
rescue => e
  log_error(e)
  [500, {}, ["error"]]
end