lib/rack/utils.rb in rack-2.2.8 vs lib/rack/utils.rb in rack-2.2.8.1

@@ -140,12 +140,12 @@
         "#{prefix}=#{escape(value)}"
       end
     end
 
     def q_values(q_value_header)
-      q_value_header.to_s.split(/\s*,\s*/).map do |part|
-        value, parameters = part.split(/\s*;\s*/, 2)
+      q_value_header.to_s.split(',').map do |part|
+        value, parameters = part.split(';', 2).map(&:strip)
         quality = 1.0
         if parameters && (md = /\Aq=([\d.]+)/.match(parameters))
           quality = md[1].to_f
         end
         [value, quality]
@@ -378,9 +378,12 @@
             r1 = size - 1  if r1 >= size
           end
         end
         ranges << (r0..r1)  if r0 <= r1
       end
+
+      return [] if ranges.map(&:size).sum > size
+
       ranges
     end
 
     # Constant time string comparison.
     #