preload-as-test.h2.py (993B)
1 import os 2 3 4 def handle_headers(frame, request, response): 5 resource_url = request.GET.first(b"resource-url").decode() 6 as_value = request.GET.first(b"as", None) 7 if as_value: 8 link_header_value = "<{}>; rel=preload; as={}".format( 9 resource_url, as_value.decode()) 10 else: 11 link_header_value = "<{}>; rel=preload".format(resource_url) 12 early_hints = [ 13 (b":status", b"103"), 14 (b"link", link_header_value), 15 ] 16 response.writer.write_raw_header_frame(headers=early_hints, 17 end_headers=True) 18 19 response.status = 200 20 response.headers[b"content-type"] = "text/html" 21 response.write_status_headers() 22 23 24 def main(request, response): 25 current_dir = os.path.dirname(os.path.realpath(__file__)) 26 file_path = os.path.join(current_dir, "preload-as-test.html") 27 with open(file_path, "r") as f: 28 test_content = f.read() 29 response.writer.write_data(item=test_content, last=True)