Re: [squid-users] Unsupported method in request dropbox.com

 On Tue, 14 Jun 2011 10:43:17 +0200, Gontzal wrote:
> Hi everybody!!
>
> I get these messages on cache.log:
>
> 2011/06/14 10:23:54| clientParseRequestMethod: Unsupported method
> attempted by client_ip: This is not a bug. see squid.conf
> extension_methods

> 2011/06/14 10:23:54| clientParseRequestMethod: Unsupported method in
> request 'X-Dropbox-Locale: es____'

 This 'X-Dropbox-Locale:' is the method being mentioned. Look strange to
 you? Squid thinks so.

 I guess the requesting software is adding "\nX-Dropbox-Locale: " when
 it should be adding "X-Dropbox-Locale: ...\n".

> 2011/06/14 10:23:54| clientProcessRequest: Invalid Request
>
> when accessing dropbox:
>
> client_ip - user_name [14/Jun/2011:10:23:54 +0200] "GET
> http://notify3.dropbox.com/subscribe? HTTP/1.1" 200 366
> TCP_MISS:DEFAULT_PARENT

 This is one of the other requests. Which succeeded. It might be the
 real one which that header was supposed to be attached to. But it is not
 easy to be sure since this is already finished. Does not matter anyway,
 the problem is in the agent code adding that custom X- header.

>
> doing a tcpdump on squid eth and filtering by client ip address I
> obtain this:
>
> 10:23:54.184989 IP (tos 0x0, ttl 64, id 25600, offset 0, flags [DF],
> proto TCP (6), length 406)
> proxy-ip.3128 > client_ip.2712: Flags [P.], cksum 0xe043
> (incorrect -> 0x3668), seq 1:367, ack 308, win 6432, length 366
> 10:23:54.188327 IP (tos 0x0, ttl 128, id 59315, offset 0, flags [DF],
> proto TCP (6), length 347)

 NP: this type of packet trace is useless for finding out what is inside
 the packets. (366 bytes of what?)

>
> I don't understand why it says unsupported method when it is just a
> GET. Can anyone help me?

 see above.

 You can contact the software devs and get them to fix that header.
 And/or ignore it and continue. Squid will react by dropping the TCP
 links this occurs on. This will only be a user-noticable problem when
 pipiline_prefetch is turned on.

 HTH
 Amos
Received on Wed Jun 15 2011 - 00:46:36 MDT