def get_response_for_static_content(
request: Request,
content_type: bytes,
contents: bytes,
last_modified_time: float,
cache_time: int = 10800,
) -> Response:
"""
Returns a response object to serve static content.
"""
current_etag = str(last_modified_time).encode()
previous_etag = request.if_none_match
headers = [
(b"Last-Modified", formatdate(last_modified_time,
usegmt=True).encode()),
(b"ETag", current_etag),
]
if cache_time > 0:
headers.append(
(b"Cache-Control", b"max-age=" + str(cache_time).encode()))
if previous_etag and current_etag == previous_etag:
# handle HTTP 304 Not Modified
return Response(304, headers, None)
if request.method == "HEAD":
headers.append((b"Content-Type", content_type))
headers.append((b"Content-Length", str(len(contents)).encode()))
return Response(200, headers, None)
return Response(200, headers, Content(content_type, contents))
def produce_response(self, request: Request, exc: Exception) -> Response:
tb = traceback.format_exception(exc.__class__, exc, exc.__traceback__)
info = ""
for item in tb:
info += f"<li><pre>{html.escape(item)}</pre></li>"
content = HtmlContent(
self._error_page_template.format_map({
"info":
info,
"exctype":
exc.__class__.__name__,
"excmessage":
str(exc),
"method":
request.method,
"path":
request.url.value.decode(),
"full_url":
get_request_url(request),
}))
return Response(500, content=content)
async def options_handler(request):
return Response(404)