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* lib/webrick/httputils.rb (WEBrick::HTTPUtils#split_header_value):

reduce backtrack.  based on a fix by Christian Neukirchen
  <chneukirchen AT gmail.com>.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@18220 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2008-07-25 14:35:21 +00:00
parent 65aa393ae7
commit 1181a092af
2 changed files with 10 additions and 12 deletions

View file

@ -23,16 +23,8 @@ module WEBrick
ret = path.dup
ret.gsub!(%r{/+}o, '/') # // => /
while ret.sub!(%r{/\.(/|\Z)}o, '/'); end # /. => /
begin # /foo/.. => /foo
match = ret.sub!(%r{/([^/]+)/\.\.(/|\Z)}o){
if $1 == ".."
raise "abnormal path `#{path}'"
else
"/"
end
}
end while match
while ret.sub!(%r'/\.(?:/|\Z)', '/'); end # /. => /
while ret.sub!(%r'/(?!\.\./)[^/]+/\.\.(?:/|\Z)', '/'); end # /foo/.. => /foo
raise "abnormal path `#{path}'" if %r{/\.\.(/|\Z)} =~ ret
ret
@ -155,8 +147,8 @@ module WEBrick
module_function :parse_header
def split_header_value(str)
str.scan(/((?:"(?:\\.|[^"])+?"|[^",]+)+)
(?:,\s*|\Z)/xn).collect{|v| v[0] }
str.scan(%r'\G((?:"(?:\\.|[^"])+?"|[^",]+)+)
(?:,\s*|\Z)'xn).flatten
end
module_function :split_header_value