Re: [Mimedefang] Timeouts and message_contains_virus

Petra Humann Wed, 27 Jan 2010 00:41:12 -0800

Am 26.01.2010 um 15:08 schrieb Jan-Pieter Cornet:

Op 26 jan 2010, om 10:47 heeft Petra Humann het volgende geschreven:
I'm using message_contains_virus_sophie for virus checking.
Sometimes (rarely) the sophie daemon dies, but the socket file persists. Because of this mimedefang-filter can't get results from the subroutine
and the mail server is temp failing any mail.
... sm-mta[15124]: o0PFjX0p015124: Milter (mimedefang): timeout before data read, where=body ... sm-mta[15124]: o0PFjX0p015124: Milter (mimedefang): to error state ... sm-mta[15124]: o0PFjX0p015124: Milter: data, reject=451 4.3.2 Please try again later
Is it possible to set a timeout value for getting the result
of virus scanning in message_contains_virus_sophie?
On a .pdf attachment maybe? We had the same issue over a year ago, reported to sophos, never really heard back that it's fixed, but newer versions of the engine could suddenly process the sample file I collected.

The reason seems to be the HUP signal to reload the virus patterns after updating sophos.

My version of sophie was old for any reasons, I updated today.

Am 26.01.2010 um 15:16 schrieb David F. Skoll:

Petra Humann wrote:

Is it possible to set a timeout value for getting the result
of virus scanning in message_contains_virus_sophie?


Well, not directly, but you could do something like:

eval {
    local $SIG{'ALRM'} = sub { die "Timeout\n"; };
    alarm(10);
    # Do your virus scanning
    alarm(0);
};

if ($@ && $@ =~ /Timeout/) {
  # Handle a timeout
} else {
  # Handle the normal case
}


Thank you very much.
Petra Humann
---
Mail:    [email protected]
WWW:     http://wwwtcs.inf.tu-dresden.de/~humann/

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Re: [Mimedefang] Timeouts and message_contains_virus

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