Class: Rack::Chunked

Inherits:
Object
  • Object
show all
Includes:
Utils
Defined in:
lib/rack/chunked.rb

Overview

Middleware that applies chunked transfer encoding to response bodies when the response does not include a Content-Length header.

Defined Under Namespace

Classes: Body

Constant Summary

Constants included from Utils

Utils::DEFAULT_SEP, Utils::ESCAPE_HTML, Utils::ESCAPE_HTML_PATTERN, Utils::HTTP_STATUS_CODES, Utils::Multipart, Utils::STATUS_WITH_NO_ENTITY_BODY, Utils::SYMBOL_TO_STATUS_CODE

Instance Method Summary collapse

Methods included from Utils

build_nested_query, build_query, byte_ranges, bytesize, delete_cookie_header!, escape, escape_html, escape_path, normalize_params, parse_nested_query, parse_query, rfc2822, select_best_encoding, set_cookie_header!, status_code, unescape

Constructor Details

#initialize(app) ⇒ Chunked

Returns a new instance of Chunked.



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# File 'lib/rack/chunked.rb', line 36

def initialize(app)
  @app = app
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/rack/chunked.rb', line 40

def call(env)
  status, headers, body = @app.call(env)
  headers = HeaderHash.new(headers)

  if env['HTTP_VERSION'] == 'HTTP/1.0' ||
     STATUS_WITH_NO_ENTITY_BODY.include?(status) ||
     headers['Content-Length'] ||
     headers['Transfer-Encoding']
    [status, headers, body]
  else
    headers.delete('Content-Length')
    headers['Transfer-Encoding'] = 'chunked'
    [status, headers, Body.new(body)]
  end
end