Parent

Methods

Included Modules

Rack::ContentLength

Sets the Content-Length header on responses with fixed-length bodies.

Public Class Methods

new(app) click to toggle source
# File lib/rack/content_length.rb, line 9
def initialize(app)
  @app = app
end

Public Instance Methods

call(env) click to toggle source
# File lib/rack/content_length.rb, line 13
def call(env)
  status, headers, body = @app.call(env)
  headers = HeaderHash.new(headers)

  if !STATUS_WITH_NO_ENTITY_BODY.include?(status.to_i) &&
     !headers['Content-Length'] &&
     !headers['Transfer-Encoding'] &&
     body.respond_to?(:to_ary)

    obody = body
    body, length = [], 0
    obody.each { |part| body << part; length += bytesize(part) }
    obody.close if obody.respond_to?(:close)

    headers['Content-Length'] = length.to_s
  end

  [status, headers, body]
end

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