Method: Addressable::URI#route_from

Defined in:
lib/vendor/addressable/lib/addressable/uri.rb

#route_from(uri) ⇒ Addressable::URI

Returns the shortest normalized relative form of this URI that uses the supplied URI as a base for resolution. Returns an absolute URI if necessary. This is effectively the opposite of route_to.

Parameters:

Returns:

  • (Addressable::URI) —

    The normalized relative URI that is equivalent to the original URI.



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# File 'lib/vendor/addressable/lib/addressable/uri.rb', line 1678

def route_from(uri)
  uri = self.class.parse(uri).normalize
  normalized_self = self.normalize
  if normalized_self.relative?
    raise ArgumentError, "Expected absolute URI, got: #{self.to_s}"
  end
  if uri.relative?
    raise ArgumentError, "Expected absolute URI, got: #{uri.to_s}"
  end
  if normalized_self == uri
    return Addressable::URI.parse("##{normalized_self.fragment}")
  end
  components = normalized_self.to_hash
  if normalized_self.scheme == uri.scheme
    components[:scheme] = nil
    if normalized_self.authority == uri.authority
      components[:user] = nil
      components[:password] = nil
      components[:host] = nil
      components[:port] = nil
      if normalized_self.path == uri.path
        components[:path] = nil
        if normalized_self.query == uri.query
          components[:query] = nil
        end
      else
        if uri.path != "/"
          components[:path].gsub!(
            Regexp.new("^" + Regexp.escape(uri.path)), "")
        end
      end
    end
  end
  # Avoid network-path references.
  if components[:host] != nil
    components[:scheme] = normalized_self.scheme
  end
  return Addressable::URI.new(
    :scheme => components[:scheme],
    :user => components[:user],
    :password => components[:password],
    :host => components[:host],
    :port => components[:port],
    :path => components[:path],
    :query => components[:query],
    :fragment => components[:fragment]
  )
end