Fixed bug in redirection code reported by David. The redirect_ok function

would fail validating a location if the port passed to http.get or http.head
was a number and not a table. [Patrik]

nselib/http.lua

@@ -1286,6 +1286,10 @@ function redirect_ok(host, port)
   }
 
   local counter = MAX_REDIRECT_COUNT
+  -- convert a numeric port to a table
+  if ( "number" == type(port) ) then
+    port = { number = port }
+  end
   return function(url)
     if ( counter == 0 ) then return false end
     counter = counter - 1

nselib/httpspider.lua

@@ -636,11 +636,12 @@ Crawler = {
 				-- were we redirected?
 				if ( response.location ) then
 					-- was the link absolute?
-					if ( response.location:match("^http") ) then
-						url = URL:new(response.location)
+					local link = response.location[#response.location]
+					if ( link:match("^http") ) then
+						url = URL:new(link)
 					-- guess not
 					else
-						url.path = response.location
+						url.path = link
 					end
 				end
 				-- if we have a response, proceed scraping it