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-rw-r--r--lib/cgi/session.rb11
1 files changed, 3 insertions, 8 deletions
diff --git a/lib/cgi/session.rb b/lib/cgi/session.rb
index a5afb7e3e1..c320ac9c47 100644
--- a/lib/cgi/session.rb
+++ b/lib/cgi/session.rb
@@ -331,10 +331,6 @@ class CGI
# user is responsible for converting other types to Strings when
# storing and from Strings when retrieving.
class FileStore
- def check_id(id) #:nodoc:
- /[^0-9a-zA-Z]/ =~ id.to_s ? false : true
- end
-
# Create a new FileStore instance.
#
# This constructor is used internally by CGI::Session. The
@@ -361,10 +357,9 @@ class CGI
dir = option['tmpdir'] || Dir::tmpdir
prefix = option['prefix'] || ''
id = session.session_id
- unless check_id(id)
- raise ArgumentError, "session_id `%s' is invalid" % id
- end
- @path = dir+"/"+prefix+id.dup.untaint
+ require 'digest/md5'
+ md5 = Digest::MD5.hexdigest(id)[0,16]
+ @path = dir+"/"+prefix+md5
unless File::exist? @path
@hash = {}
end