+ var local_file = (root / default_file).simplify_path
+ return answer_file(local_file)
+ end
+
+ # Answer a 303 redirection to `location`.
+ fun answer_redirection(location: String): HttpResponse do
+ var response = new HttpResponse(303)
+ response.header["Location"] = location
+ return response
+ end
+
+ # Build a reponse containing a single `local_file`.
+ #
+ # Returns a 404 error if local_file does not exists.
+ fun answer_file(local_file: String): HttpResponse do
+ if not local_file.file_exists then return new HttpResponse(404)
+
+ var response = new HttpResponse(200)
+ response.files.add local_file
+
+ # Set Content-Type depending on the file extension
+ var ext = local_file.file_extension
+ if ext != null then
+ var media_type = media_types[ext]
+ if media_type != null then
+ response.header["Content-Type"] = media_type
+ else response.header["Content-Type"] = "application/octet-stream"
+ end
+
+ # Cache control
+ response.header["cache-control"] = cache_control
+ return response
+ end
+
+ # Answer with a directory listing for files within `local_files`.
+ fun answer_directory_listing(request: HttpRequest, turi, local_file: String): HttpResponse do
+ # Show the directory listing
+ var title = turi
+ var files = local_file.files
+
+ alpha_comparator.sort files
+
+ var links = new Array[String]
+ if turi.length > 1 then
+ var path = (request.uri + "/..").simplify_path
+ links.add "<a href=\"{path}/\">..</a>"
+ end
+ for file in files do
+ var local_path = local_file.join_path(file).simplify_path
+ var web_path = file.simplify_path
+ var file_stat = local_path.file_stat
+ if file_stat != null and file_stat.is_dir then web_path = web_path + "/"
+ links.add "<a href=\"{web_path}\">{file}</a>"
+ end
+
+ var header = self.header
+ var header_code
+ if header != null then
+ header_code = header.write_to_string
+ else header_code = ""
+
+ var response = new HttpResponse(200)
+ response.body = """