module VCR::Net::HTTPResponse

A Net::HTTP response that has already been read raises an IOError when read_body is called with a destination string or block.

This causes a problem when VCR records a response–it reads the body before yielding the response, and if the code that is consuming the HTTP requests uses read_body, it can cause an error.

This is a bit of a hack, but it allows a Net::HTTP response to be “re-read” after it has aleady been read. This attemps to preserve the behavior of read_body, acting just as if it had never been read. @private

Public Class Methods

extended(response) click to toggle source
# File lib/vcr/extensions/net_http_response.rb, line 16
def self.extended(response)
  response.instance_variable_set(:@__read_body_previously_called, false)
end

Public Instance Methods

read_body(dest = nil, &block) click to toggle source
Calls superclass method
# File lib/vcr/extensions/net_http_response.rb, line 20
def read_body(dest = nil, &block)
  return super if @__read_body_previously_called
  return @body if dest.nil? && block.nil?
  raise ArgumentError.new("both arg and block given for HTTP method") if dest && block

  if @body
    dest ||= ::Net::ReadAdapter.new(block)
    dest << @body
    @body = dest
  end
ensure
  # allow subsequent calls to #read_body to proceed as normal, without our hack...
  @__read_body_previously_called = true
end