lib/protocol/http/body/rewindable.rb in protocol-http-0.16.2 vs lib/protocol/http/body/rewindable.rb in protocol-http-0.16.3

@@ -31,12 +31,22 @@
 				def initialize(body)
 					super(body)
 					
 					@chunks = []
 					@index = 0
+					@digest = nil
 				end
 				
+				def digest
+					if @digest.nil?
+						@digest = Digest::SHA256.new
+						@chunks.each{|chunk| @digest.update(chunk)}
+					end
+					
+					@digest.hexdigest
+				end
+				
 				def empty?
 					(@index >= @chunks.size) && super
 				end
 				
 				# A rewindable body wraps some other body. Convert it to a buffered body 
@@ -49,9 +59,10 @@
 						chunk = @chunks[@index]
 						@index += 1
 					else
 						if chunk = super
 							@chunks << chunk
+							@digest&.update(chunk)
 							@index += 1
 						end
 					end
 					
 					# We dup them on the way out, so that if someone modifies the string, it won't modify the rewindability.