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Send 204 as HTTPError #3360

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pawciobiel opened this issue Feb 16, 2024 · 0 comments · May be fixed by #3361
Open

Send 204 as HTTPError #3360

pawciobiel opened this issue Feb 16, 2024 · 0 comments · May be fixed by #3361

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@pawciobiel
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pawciobiel commented Feb 16, 2024 •
edited

Occasionally it is useful to send HTTP204 via exception raise HTTPError(204) .
Also when run with python -O assertions are removed causing the check for no content useless.
But the response buffer has value:

[b'<html><title>204: No Content</title><body>204: No Content</body></html>']

Traceback (most recent call last):
  File "/home/pgb/.local/lib/python3.10/site-packages/tornado/web.py", line 1791, in _execute
    self._handle_request_exception(e)
  File "/home/pgb/.local/lib/python3.10/site-packages/tornado/web.py", line 1846, in _handle_request_exception
    self.send_error(e.status_code, exc_info=sys.exc_info())
  File "/home/pgb/.local/lib/python3.10/site-packages/tornado/web.py", line 1298, in send_error
    self.finish()
  File "/home/pgb/.local/lib/python3.10/site-packages/tornado/web.py", line 1219, in finish
    assert not self._write_buffer, (
AssertionError: Cannot send body with 204
pawciobiel added a commit to pawciobiel/tornado that referenced this issue Feb 16, 2024
@pawciobiel
web: do not send content on HTTPError(204)
f627e91 
Change `write_error()` to not send body if
 status code in (204, 304) or (100 <= status code < 200)
 - refactored into `RequestHandler._should_not_send_content(status_code)`
Change `get_arguments()` to raise `ValueError` if `strip` is not boolean
 - as opposed to `AssertionError`.

Fixes tornadoweb#3360
@pawciobiel pawciobiel linked a pull request Feb 16, 2024 that will close this issue
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web: do not send content on HTTPError(204) pawciobiel/tornado
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