Add cleanup methods for file uploads and temporary files

Author: sdogruyol

src/kemal/file_upload.cr

@@ -20,5 +20,10 @@ module Kemal
       @read_time = upload.read_time
       @size = upload.size
     end
+
+    def cleanup
+      @tempfile.close
+      ::File.delete(@tempfile.path) if ::File.exists?(@tempfile.path)
+    end
   end
 end

src/kemal/param_parser.cr

@@ -24,6 +24,15 @@ module Kemal
       @files_parsed = false
     end
 
+    def cleanup_temporary_files
+      return if @files.empty? && @all_files.empty?
+
+      @files.each_value &.cleanup
+      @all_files.each_value do |file_uploads|
+        file_uploads.each &.cleanup
+      end
+    end
+
     private def unescape_url_param(value : String)
       value.empty? ? value : URI.decode(value)
     rescue

src/kemal/route_handler.cr

@@ -56,7 +56,10 @@ module Kemal
       end
 
       context.response.print(content)
+
       context
+    ensure
+      context.params.cleanup_temporary_files
     end
 
     private def radix_path(method, path)