Empty body handled as error (204 No Content)

[zloidemon]

An empty body handled as error. Although it isn't error. I see aiohttp code, it always trying to decompress empty data and raised.

Traceback (most recent call last):
  File "example.py", line 22, in <module>
    fetch_page(rh))
  File "/usr/local/lib/python3.5/asyncio/base_events.py", line 342, in run_until_complete
    return future.result()
  File "/usr/local/lib/python3.5/asyncio/futures.py", line 274, in result
    raise self._exception
  File "/usr/local/lib/python3.5/asyncio/tasks.py", line 239, in _step
    result = coro.send(value)
  File "example.py", line 8, in fetch_page
    print(await Bucket(client, 'ololo').delete('XXXX'))
  File "/usr/home/vg/Develop/aiohttp_riak/aiohttp_riak/Bucket.py", line 100, in delete
    return False
  File "/usr/home/vg/Develop/aiohttp_riak/.venv/lib/python3.5/site-packages/aiohttp/client.py", line 523, in __aexit__
    yield from self._resp.release()
  File "/usr/home/vg/Develop/aiohttp_riak/.venv/lib/python3.5/site-packages/aiohttp/client_reqrep.py", line 656, in release
    chunk = yield from content.readany()
  File "/usr/home/vg/Develop/aiohttp_riak/.venv/lib/python3.5/site-packages/aiohttp/streams.py", line 472, in wrapper
    result = yield from func(self, *args, **kw)
  File "/usr/home/vg/Develop/aiohttp_riak/.venv/lib/python3.5/site-packages/aiohttp/streams.py", line 535, in readany
    return (yield from super().readany())
  File "/usr/home/vg/Develop/aiohttp_riak/.venv/lib/python3.5/site-packages/aiohttp/streams.py", line 265, in readany
    raise self._exception
  File "/usr/home/vg/Develop/aiohttp_riak/.venv/lib/python3.5/site-packages/aiohttp/parsers.py", line 189, in set_parser
    next(p)
  File "/usr/home/vg/Develop/aiohttp_riak/.venv/lib/python3.5/site-packages/aiohttp/protocol.py", line 313, in __call__
    out.feed_eof()
  File "/usr/home/vg/Develop/aiohttp_riak/.venv/lib/python3.5/site-packages/aiohttp/protocol.py", line 387, in feed_eof
    raise errors.ContentEncodingError('deflate')
aiohttp.errors.ContentEncodingError: 400, message='deflate'
Unclosed client session
client_session: <aiohttp.client.ClientSession object at 0x806696470>

curl -XDELETE -v localhost:8098/buckets/ololo/keys/XXXX                                                                              
*   Trying 127.0.0.1...
* Connected to localhost (127.0.0.1) port 8098 (#0)
> DELETE /buckets/ololo/keys/XXXX HTTP/1.1
> Host: localhost:8098
> User-Agent: curl/7.45.0
> Accept: */*
> 
< HTTP/1.1 204 No Content
< Vary: Accept-Encoding
< Server: MochiWeb/1.1 WebMachine/1.10.0 (never breaks eye contact)
< Date: Tue, 02 Feb 2016 09:39:46 GMT
< Content-Type: application/json
< Content-Length: 0
< 
* Connection #0 to host localhost left intact

12:43:49.902869 IP localhost.8098 > localhost.49355: Flags [P.], seq 400:425, ack 244, win 128, options [nop,nop,TS val 586110440 ecr 1045355615], length 25
E..Me.@[email protected]..<._.).....A.....
".U.>N._..................I*.....
12:43:49.902878 IP localhost.49355 > localhost.8098: Flags [.], ack 425, win 1269, options [nop,nop,TS val 1045355616 ecr 586110440], length 0
E..4e.@.@................_.)Z..U.....(.....
>N.`".U.
12:43:49.918847 IP localhost.49355 > localhost.8098: Flags [P.], seq 244:437, ack 425, win 1275, options [nop,nop,TS val 1045355632 ecr 586110440], length 193
E...e.@.@................_.)Z..U...........
>N.p".U.DELETE /buckets/ololo/keys/XXXX HTTP/1.1
ACCEPT: */*
ACCEPT-ENCODING: gzip, deflate
HOST: 127.0.0.1:8098
USER-AGENT: Python/3.5 aiohttp/0.20.2
CONTENT-LENGTH: 0
CONNECTION: keep-alive


12:43:49.921062 IP localhost.8098 > localhost.49355: Flags [P.], seq 425:654, ack 437, win 128, options [nop,nop,TS val 586110459 ecr 1045355632], length 229
......@[email protected]._.......
".U.>N.pHTTP/1.1 204 No Content
Vary: Accept-Encoding
Server: MochiWeb/1.1 WebMachine/1.10.0 (never breaks eye contact)
Date: Tue, 02 Feb 2016 09:43:49 GMT
Content-Type: application/json
Content-Length: 0
Content-Encoding: gzip


12:43:49.939182 IP localhost.49355 > localhost.8098: Flags [F.], seq 437, ack 654, win 1275, options [nop,nop,TS val 1045355653 ecr 586110459], length 0
E..4e.@.@................_..Z..:.....(.....
>N..".U.
12:43:49.939216 IP localhost.8098 > localhost.49355: Flags [.], ack 438, win 128, options [nop,nop,TS val 586110477 ecr 1045355653], length 0
E..4e.@[email protected]..:._.......(.....
>N..
12:43:49.939352 IP localhost.8098 > localhost.49355: Flags [F.], seq 654, ack 438, win 128, options [nop,nop,TS val 586110477 ecr 1045355653], length 0
E..4e.@[email protected]..:._.......(.....
>N..
12:43:49.939369 IP localhost.49355 > localhost.8098: Flags [.], ack 655, win 1275, options [nop,nop,TS val 1045355653 ecr 586110477], length 0
E..4e.@.@................_..Z..;.....(.....
>N..".V

[asvetlov]

Would you provide a Pull Request with fix?

[rgacote]

Just ran into this issue and have some additional information.
Was able to work around the issue by setting the Accept-Encoding header to either identity or application/json (obviously, I was working with a JSON API).
With either Accept-Encoding selected, you get the 204 status code but avoid the deflate exception that is otherwise raised.

[asvetlov]

I have a fix.
@zloidemon @rgacote would you test and review it?

[rgacote]

That works nicely. Thanks.
—Ray

On Sun, Feb 28, 2016 at 4:13 PM, Andrew Svetlov [email protected]
wrote:

I have a fix.
@zloidemon https:/zloidemon @rgacote
https:/rgacote would you test and review it?

—
Reply to this email directly or view it on GitHub
#758 (comment).

Raymond Cote, President
voice: +1.603.924.6079 email: [email protected] skype:
ray.cote

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