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require 'uri'
module ActionDispatch
module Journey # :nodoc:
class Router # :nodoc:
class Utils # :nodoc:
# Normalizes URI path.
#
# Strips off trailing slash and ensures there is a leading slash.
# Also converts downcase url encoded string to uppercase.
#
# normalize_path("/foo") # => "/foo"
# normalize_path("/foo/") # => "/foo"
# normalize_path("foo") # => "/foo"
# normalize_path("") # => "/"
# normalize_path("/%ab") # => "/%AB"
def self.normalize_path(path)
path = "/#{path}"
path.squeeze!('/')
path.sub!(%r{/+\Z}, '')
path.gsub!(/(%[a-f0-9]{2})/) { $1.upcase }
path = '/' if path == ''
path
end
# URI path and fragment escaping
# http://tools.ietf.org/html/rfc3986
module UriEscape # :nodoc:
# Symbol captures can generate multiple path segments, so include /.
reserved_segment = '/'
reserved_fragment = '/?'
reserved_pchar = ':@&=+$,;%'
safe_pchar = "#{URI::REGEXP::PATTERN::UNRESERVED}#{reserved_pchar}"
safe_segment = "#{safe_pchar}#{reserved_segment}"
safe_fragment = "#{safe_pchar}#{reserved_fragment}"
UNSAFE_SEGMENT = Regexp.new("[^#{safe_segment}]", false).freeze
UNSAFE_FRAGMENT = Regexp.new("[^#{safe_fragment}]", false).freeze
end
Parser = URI::Parser.new
def self.escape_path(path)
Parser.escape(path.to_s, UriEscape::UNSAFE_SEGMENT)
end
def self.escape_fragment(fragment)
Parser.escape(fragment.to_s, UriEscape::UNSAFE_FRAGMENT)
end
def self.unescape_uri(uri)
Parser.unescape(uri)
end
end
end
end
end
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