class WebConsole::Injector

Injects content into a Rack body.

Public Class Methods

new(body, headers) click to toggle source
# File lib/web_console/injector.rb, line 6
def initialize(body, headers)
  @body = "".dup

  body.each { |part| @body << part }
  body.close if body.respond_to?(:close)

  @headers = headers
end

Public Instance Methods

inject(content) click to toggle source
# File lib/web_console/injector.rb, line 15
def inject(content)
  # Set content-length header to the size of the current body
  # + the extra content. Otherwise the response will be truncated.
  if @headers[Rack::CONTENT_LENGTH]
    @headers[Rack::CONTENT_LENGTH] = (@body.bytesize + content.bytesize).to_s
  end

  [
    if position = @body.rindex("</body>")
      [ @body.insert(position, content) ]
    else
      [ @body << content ]
    end,
    @headers
  ]
end