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📁 ..
📁 auth
📄 body_proxy.rb(1.27 KB)
📄 builder.rb(8.21 KB)
📄 cascade.rb(2.22 KB)
📄 chunked.rb(3.19 KB)
📄 common_logger.rb(2.98 KB)
📄 conditional_get.rb(2.99 KB)
📄 config.rb(410 B)
📄 content_length.rb(919 B)
📄 content_type.rb(684 B)
📁 core_ext
📄 deflater.rb(5.15 KB)
📄 directory.rb(5.9 KB)
📄 etag.rb(2.14 KB)
📄 events.rb(4.72 KB)
📄 file.rb(88 B)
📄 files.rb(5.74 KB)
📁 handler
📄 handler.rb(2.87 KB)
📄 head.rb(520 B)
📄 lint.rb(31.77 KB)
📄 lobster.rb(1.96 KB)
📄 lock.rb(716 B)
📄 logger.rb(384 B)
📄 media_type.rb(1.82 KB)
📄 method_override.rb(1.33 KB)
📄 mime.rb(32.39 KB)
📄 mock.rb(9.14 KB)
📁 multipart
📄 multipart.rb(2.57 KB)
📄 null_logger.rb(980 B)
📄 query_parser.rb(8.32 KB)
📄 recursive.rb(1.75 KB)
📄 reloader.rb(3.12 KB)
📄 request.rb(19.71 KB)
📄 response.rb(8.78 KB)
📄 rewindable_input.rb(2.85 KB)
📄 runtime.rb(885 B)
📄 sendfile.rb(5.45 KB)
📄 server.rb(13.29 KB)
📁 session
📄 show_exceptions.rb(13.3 KB)
📄 show_status.rb(3.42 KB)
📄 static.rb(6.15 KB)
📄 tempfile_reaper.rb(661 B)
📄 urlmap.rb(2.78 KB)
📄 utils.rb(18.65 KB)
📄 version.rb(786 B)

Editing: chunked.rb

# frozen_string_literal: true

module Rack

# Middleware that applies chunked transfer encoding to response bodies
  # when the response does not include a Content-Length header.
  #
  # This supports the Trailer response header to allow the use of trailing
  # headers in the chunked encoding.  However, using this requires you manually
  # specify a response body that supports a +trailers+ method.  Example:
  #
  #   [200, { 'Trailer' => 'Expires'}, ["Hello", "World"]]
  #   # error raised
  #
  #   body = ["Hello", "World"]
  #   def body.trailers
  #     { 'Expires' => Time.now.to_s }
  #   end
  #   [200, { 'Trailer' => 'Expires'}, body]
  #   # No exception raised
  class Chunked
    include Rack::Utils

# A body wrapper that emits chunked responses.
    class Body
      TERM = "\r\n"
      TAIL = "0#{TERM}"

# Store the response body to be chunked.
      def initialize(body)
        @body = body
      end

# For each element yielded by the response body, yield
      # the element in chunked encoding.
      def each(&block)
        term = TERM
        @body.each do |chunk|
          size = chunk.bytesize
          next if size == 0

yield [size.to_s(16), term, chunk.b, term].join
        end
        yield TAIL
        yield_trailers(&block)
        yield term
      end

# Close the response body if the response body supports it.
      def close
        @body.close if @body.respond_to?(:close)
      end

private

# Do nothing as this class does not support trailer headers.
      def yield_trailers
      end
    end

# A body wrapper that emits chunked responses and also supports
    # sending Trailer headers.  Note that the response body provided to
    # initialize must have a +trailers+ method that returns a hash
    # of trailer headers, and the rack response itself should have a
    # Trailer header listing the headers that the +trailers+ method
    # will return.
    class TrailerBody < Body
      private

# Yield strings for each trailer header.
      def yield_trailers
        @body.trailers.each_pair do |k, v|
          yield "#{k}: #{v}\r\n"
        end
      end
    end

def initialize(app)
      @app = app
    end

# Whether the HTTP version supports chunked encoding (HTTP 1.1 does).
    def chunkable_version?(ver)
      case ver
      # pre-HTTP/1.0 (informally "HTTP/0.9") HTTP requests did not have
      # a version (nor response headers)
      when 'HTTP/1.0', nil, 'HTTP/0.9'
        false
      else
        true
      end
    end

# If the rack app returns a response that should have a body,
    # but does not have Content-Length or Transfer-Encoding headers,
    # modify the response to use chunked Transfer-Encoding.
    def call(env)
      status, headers, body = @app.call(env)
      headers = HeaderHash[headers]

if chunkable_version?(env[SERVER_PROTOCOL]) &&
         !STATUS_WITH_NO_ENTITY_BODY.key?(status.to_i) &&
         !headers[CONTENT_LENGTH] &&
         !headers[TRANSFER_ENCODING]

headers[TRANSFER_ENCODING] = 'chunked'
        if headers['Trailer']
          body = TrailerBody.new(body)
        else
          body = Body.new(body)
        end
      end

[status, headers, body]
    end
  end
end

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Editing: chunked.rb

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