http://bugs.squid-cache.org/show_bug.cgi?id=3031


2010/8/29 Amos Jeffries <squ...@treenet.co.nz>:
> Kaiwang Chen wrote:
>>
>> In 2.6.STALBE21,  squid immediately responds with 400 when I enter
>> 'a'; while in 3.1.6 the connection expects more characters, although
>> it will definitively not get a good request.
>>
>> [r...@squid1 root]# telnet localhost 80
>> Trying 127.0.0.1...
>> Connected to localhost.
>> Escape character is '^]'.
>> a
>> HTTP/1.0 400 Bad Request
>> Server: squid/2.6.STABLE21
>> ...
>> Some aspect of the HTTP Request is invalid.  Possible problems:
>> Missing or unknown request method
>> Missing URL
>> Missing HTTP Identifier (HTTP/1.0)
>> Request is too large
>> (more...)
>> ...
>>
>>
>> [r...@dev ~]# telnet localhost 80
>> Trying 127.0.0.1...
>> Connected to localhost.localdomain (127.0.0.1).
>> Escape character is '^]'.
>> a
>>
>> b
>> (can type in anything, and Ctrl-C will not abort connection. It just hang
>> there)
>
> Ctrl-C will not terminate telnet (Ctrl-] is needed for that) but yes I see
> the problem.
>
>>
>>
>> Is there a configuration directive that controls it?
>
> No, just some sanity checks.
>
>
> Looks like you have hit a bug in the HTTP/1.1 persistent connections when
> dealing with HTTP/0.9 ambiguous traffic.
>
> I've reproduced that in the latest code and am working on it now, but could
> you please report it in bugzilla anyway so it doesn't get lost.
>
> Amos
> --
> Please be using
>  Current Stable Squid 2.7.STABLE9 or 3.1.7
>  Beta testers wanted for 3.2.0.1
>

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