Class: Unwind::RedirectFollower

Inherits:
Object
  • Object
show all
Defined in:
lib/unwind.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(original_url, limit = 5) ⇒ RedirectFollower

Returns a new instance of RedirectFollower.



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# File 'lib/unwind.rb', line 14

def initialize(original_url, limit=5)
  @original_url, @redirect_limit = original_url, limit
  @redirects = []
end

Instance Attribute Details

#final_url ⇒ Object (readonly)

Returns the value of attribute final_url.



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# File 'lib/unwind.rb', line 12

def final_url
  @final_url
end

#original_url ⇒ Object (readonly)

Returns the value of attribute original_url.



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# File 'lib/unwind.rb', line 12

def original_url
  @original_url
end

#redirect_limit ⇒ Object (readonly)

Returns the value of attribute redirect_limit.



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# File 'lib/unwind.rb', line 12

def redirect_limit
  @redirect_limit
end

#redirects ⇒ Object (readonly)

Returns the value of attribute redirects.



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# File 'lib/unwind.rb', line 12

def redirects
  @redirects
end

#response ⇒ Object (readonly)

Returns the value of attribute response.



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# File 'lib/unwind.rb', line 12

def response
  @response
end

Class Method Details

.resolve(original_url, limit = 5) ⇒ Object 



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# File 'lib/unwind.rb', line 57

def self.resolve(original_url, limit=5)
  new(original_url, limit).resolve
end

Instance Method Details

#redirected? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/unwind.rb', line 19

def redirected?
  !(self.final_url == self.original_url)
end

#resolve(current_url = nil, options = {}) ⇒ Object 



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# File 'lib/unwind.rb', line 23

def resolve(current_url=nil, options={})
  ok_to_continue?

  current_url ||= self.original_url
  #adding this header because we really only care about resolving the url
  headers = (options || {}).merge({"accept-encoding" => "none"})

  url = URI.parse(current_url)

  request = Net::HTTP::Get.new(url)

  headers.each do |header, value|
    request.add_field(header, value)
  end

  response = Net::HTTP.start(
    url.host,
    url.port,
    :use_ssl => url.scheme == 'https'
  ) do |http|
    http.request(request)
  end

  if is_response_redirect?(response)
    handle_redirect(redirect_url(response), current_url, response, headers)
  elsif meta_uri = meta_refresh?(current_url, response)
    handle_redirect(meta_uri, current_url, response, headers)
  else
    handle_final_response(current_url, response)
  end

  self
end