/usr/lib/ruby/vendor_ruby/rack/backports/uri/common_18.rb is in ruby-rack 1.6.4-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 | # :stopdoc:
# Stolen from ruby core's uri/common.rb, with modifications to support 1.8.x
#
# https://github.com/ruby/ruby/blob/trunk/lib/uri/common.rb
#
#
module URI
TBLENCWWWCOMP_ = {} # :nodoc:
256.times do |i|
TBLENCWWWCOMP_[i.chr] = '%%%02X' % i
end
TBLENCWWWCOMP_[' '] = '+'
TBLENCWWWCOMP_.freeze
TBLDECWWWCOMP_ = {} # :nodoc:
256.times do |i|
h, l = i>>4, i&15
TBLDECWWWCOMP_['%%%X%X' % [h, l]] = i.chr
TBLDECWWWCOMP_['%%%x%X' % [h, l]] = i.chr
TBLDECWWWCOMP_['%%%X%x' % [h, l]] = i.chr
TBLDECWWWCOMP_['%%%x%x' % [h, l]] = i.chr
end
TBLDECWWWCOMP_['+'] = ' '
TBLDECWWWCOMP_.freeze
# Encode given +s+ to URL-encoded form data.
#
# This method doesn't convert *, -, ., 0-9, A-Z, _, a-z, but does convert SP
# (ASCII space) to + and converts others to %XX.
#
# This is an implementation of
# http://www.w3.org/TR/html5/forms.html#url-encoded-form-data
#
# See URI.decode_www_form_component, URI.encode_www_form
def self.encode_www_form_component(s)
str = s.to_s
if RUBY_VERSION < "1.9" && $KCODE =~ /u/i
str.gsub(/([^ a-zA-Z0-9_.-]+)/) do
'%' + $1.unpack('H2' * Rack::Utils.bytesize($1)).join('%').upcase
end.tr(' ', '+')
else
str.gsub(/[^*\-.0-9A-Z_a-z]/) {|m| TBLENCWWWCOMP_[m]}
end
end
# Decode given +str+ of URL-encoded form data.
#
# This decodes + to SP.
#
# See URI.encode_www_form_component, URI.decode_www_form
def self.decode_www_form_component(str, enc=nil)
raise ArgumentError, "invalid %-encoding (#{str})" unless /\A(?:%[0-9a-fA-F]{2}|[^%])*\z/ =~ str
str.gsub(/\+|%[0-9a-fA-F]{2}/) {|m| TBLDECWWWCOMP_[m]}
end
end
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