File: modulepreload-in-early-hints.h2.py

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file content (29 lines) | stat: -rw-r--r-- 1,018 bytes parent folder | download | duplicates (15) 
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import os


def handle_headers(frame, request, response):
    resource_url = request.GET.first(b"resource-url").decode()
    as_value = request.GET.first(b"as", None)
    if as_value:
        link_header_value = "<{}>; rel=modulepreload; as={}".format(
            resource_url, as_value.decode())
    else:
        link_header_value = "<{}>; rel=modulepreload".format(resource_url)
    early_hints = [
        (b":status", b"103"),
        (b"link", link_header_value),
    ]
    response.writer.write_raw_header_frame(headers=early_hints,
                                           end_headers=True)

    response.status = 200
    response.headers[b"content-type"] = "text/html"
    response.write_status_headers()


def main(request, response):
    current_dir = os.path.dirname(os.path.realpath(__file__))
    file_path = os.path.join(current_dir, "modulepreload-in-early-hints.html")
    with open(file_path, "r") as f:
        test_content = f.read()
    response.writer.write_data(item=test_content, last=True)