Class: RaptorIO::Protocol::HTTP::Request::Manipulators::RedirectFollower

Inherits:
RaptorIO::Protocol::HTTP::Request::Manipulator show all
Defined in:
lib/raptor-io/protocol/http/request/manipulators/redirect_follower.rb

Overview

Implements automatic HTTP redirect following.

Author:

  • Tasos Laskos

Instance Attribute Summary

Attributes inherited from RaptorIO::Protocol::HTTP::Request::Manipulator

#client, #options, #request

Instance Method Summary collapse

Methods inherited from RaptorIO::Protocol::HTTP::Request::Manipulator

#datastore, #delegate, inherited, #initialize, #shortname, shortname, #validate_options, validate_options, validate_options!

Constructor Details

This class inherits a constructor from RaptorIO::Protocol::HTTP::Request::Manipulator

Instance Method Details

#run ⇒ Object 



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# File 'lib/raptor-io/protocol/http/request/manipulators/redirect_follower.rb', line 14

def run
  # This request has already been handled.
  return if request.root_redirect_id

  callbacks = request.callbacks.dup
  request.clear_callbacks

  request.on_complete do |response|
    root_redirect_id = request.root_redirect_id ?
        request.root_redirect_id : request.object_id

    if response.redirect?
      if redirections[root_redirect_id].size < max
        redirections[root_redirect_id] << response

        crequest = request.dup
        crequest.root_redirect_id = root_redirect_id

        # RFC says the Location URI must be a full absolute URL however not
        # all webapps respect that.
        crequest.url = crequest.parsed_url.merge( response.headers['Location'] ).to_s

        client.queue( crequest )
        next
      else
        response.redirections = redirections.delete( root_redirect_id )
      end
    end

    request.callbacks = callbacks
    request.handle_response response
  end
end