Class: Rack::Rewritten::Url

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(app, &block) ⇒ Url

Returns a new instance of Url.



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# File 'lib/rack/url.rb', line 8

def initialize(app, &block)
  @app = app
  @translate_backwards = false
  @translate_backwards_exceptions = []
  @downcase_before_lookup = false
  @translate_partial = false
  @base_url = ''
  instance_eval(&block) if block_given?
end

Instance Attribute Details

#base_url ⇒ Object

Returns the value of attribute base_url.



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# File 'lib/rack/url.rb', line 6

def base_url
  @base_url
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/rack/url.rb', line 26

def call(env)
  req = Rack::Request.new(env)

  subdomain = env['SUBDOMAIN'] ? "#{env['SUBDOMAIN']}:" : ''

  path = "#{subdomain}#{req.path_info}"
  path.downcase! if downcase_before_lookup

  target_url = ::Rewritten.translate(path)

  chomped_fullpath = req.fullpath.split('?').map { |s| s.chomp('/') }.join('?')

  if external_target?(target_url)
    r = Rack::Response.new
    r.redirect(target_url, 301)
    r.finish
  elsif ::Rewritten.includes?(chomped_fullpath) || ::Rewritten.includes?(path.chomp('/')) || backwards = (translate_backwards?(path) && ::Rewritten.exist_translation_for?(path))

    to = ::Rewritten.includes?(chomped_fullpath)
    to ||= ::Rewritten.includes?(path.chomp('/')) || path

    current_path = ::Rewritten.get_current_translation(to)
    current_path = current_path.split(':').last
    current_path_with_query = current_path
    current_path = current_path.split('?')[0]

    if current_path.size + 1 == req.path_info.size and current_path == req.path_info.chomp('/')
      r = Rack::Response.new

      new_path = env['rack.url_scheme'].dup
      new_path << '://'
      new_path << env['HTTP_HOST'].dup.sub(/^#{subdomain.chomp(':')}\./, '')
      new_path << current_path
      new_path << ::Rewritten.appendix(chomped_fullpath) unless backwards
      new_path << '?' << env['QUERY_STRING'] unless (env['QUERY_STRING'] || '').empty?

      r.redirect(new_path, 301)
      return r.finish
    end

    if (chomped_fullpath == current_path_with_query || current_path == req.path_info) || (::Rewritten.base_from(req.path_info) == current_path) || ::Rewritten.flag?(path, 'L')
      # if this is the current path, rewrite path and parameters
      tpath, tparams = split_to_path_params(to)
      env['QUERY_STRING'] = Rack::Utils.build_nested_query(tparams.merge(req.params))
      req.path_info = tpath + ::Rewritten.appendix(chomped_fullpath)
      @app.call(req.env)
    else
      # if this is not the current path, redirect to current path
      # NOTE: assuming redirection is always to non-subdomain-path

      r = Rack::Response.new

      new_path = env['rack.url_scheme'].dup
      new_path << '://'
      new_path << env['HTTP_HOST'].dup.sub(/^#{subdomain.chomp(':')}\./, '')
      new_path << current_path
      new_path << ::Rewritten.appendix(path) unless backwards
      new_path << '?' << env['QUERY_STRING'] unless (env['QUERY_STRING'] || '').empty?

      r.redirect(new_path, 301)
      a = r.finish
    end
  else
    @app.call(req.env)
  end
end

#external_target?(url) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rack/url.rb', line 22

def external_target?(url)
  !internal_target?(url)
end

#internal_target?(url) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rack/url.rb', line 18

def internal_target?(url)
  url.nil? || url.start_with?('/') || url.start_with?(@base_url)
end

#split_to_path_params(path_and_query) ⇒ Object 



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# File 'lib/rack/url.rb', line 93

def split_to_path_params(path_and_query)
  path, query_string = path_and_query.split('?').push('')[0..1]
  [path, Rack::Utils.parse_query(query_string)]
end