Module: Grape::Util::PathNormalizer

Defined in:
lib/grape/util/path_normalizer.rb

Class Method Summary collapse

Class Method Details

.call(path) ⇒ Object

Taken from Rails call("/foo") # => "/foo" call("/foo/") # => "/foo" call("foo") # => "/foo" call("") # => "/" call("/%ab") # => "/%AB" https://github.com/rails/rails/blob/00cc4ff0259c0185fe08baadaa40e63ea2534f6e/actionpack/lib/action_dispatch/journey/router/utils.rb#L19



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# File 'lib/grape/util/path_normalizer.rb', line 13

def self.call(path)
  return '/' unless path
  return path if path == '/'

  # Fast path for the overwhelming majority of paths that don't need to be
  # normalized. Two String#include? calls rather than one `%|//` regexp:
  # same predicate, and the scan stays in C without building a match.
  return path if path.start_with?('/') && !(path.end_with?('/') || path.include?('%') || path.include?('//'))

  # Slow path. The bangs below are safe because +normalized+ is a fresh
  # String built here, never the one the caller passed in.
  encoding = path.encoding
  normalized = "/#{path}"
  normalized.squeeze!('/')

  unless normalized == '/'
    normalized.delete_suffix!('/')
    normalized.gsub!(/(%[a-f0-9]{2})/) { ::Regexp.last_match(1).upcase }
  end

  normalized.force_encoding(encoding)
end