Postfix Message Size Wrong

Glenn Steen glenn.steen at gmail.com
Mon Oct 17 23:45:46 IST 2011


The num+0 thing is to "trick" perl to always treat imthe scalar as a number.

I have close to no free time to look at this, but ... will try as best as I
can to check this over.

Cheers
-- 
-- Glenn
Den 17 okt 2011 18:37 skrev "--[ UxBoD ]--" <uxbod at splatnix.net>:

> >From what I can see it is a trivial fix. In PFDiskStore.pm around line 359
> it has:
>
>  printf $Tf "%15ld %15ld %15ld", $HeaderLength, $HeaderStartPos,
> $recipcounter;
>  printf $Tf " %15ld", $message->{PostfixQmgrOpts}
>    if $message->{PostfixQmgrOpts} ne "";
>  seek $Tf, 0, 0;
>
> I believe this needs to become:
>
>  printf $Tf "%15ld %15ld %15ld", $HeaderLength, $HeaderStartPos,
> $recipcounter;
>  printf $Tf " %15ld", $message->{PostfixQmgrOpts}
>    if $message->{PostfixQmgrOpts} ne "";
>  printf $Tf " %15ld", $HeaderLength;
>  seek $Tf, 0, 0;
>
> This then sets the actual content length in field 5 of the queue file. I am
> not sure why the line above is there though as Postfix.pm always appears to
> set PostfixQmgrOpts to at least zero:
>
>    if (defined $numbers[3]) {
>      $MailScanner::Postfix::DataStructure = 1;
>      $message->{PostfixQmgrOpts} = $numbers[3]+0;
>    }
>
> I have tested this and it appears to work fine. Thoughts Jules or anybody
> else ?
> --
> Thanks, Phil
>
> ----- Original Message -----
>
> > Hello,
>
> > I am working on the MailScanner and ZendTo integration and have hit
> > the same problem that Markus had with respect to setting the true
> > message size when the content has been changed. Within
> > PFDiskStore.pm I see that the message size is being written plus the
> > data offset:
>
> > printf $Tf "%15ld %15ld %15ld", $HeaderLength, $HeaderStartPos,
> > $recipcounter;
> > printf $Tf " %15ld", $message->{PostfixQmgrOpts}
> > if $message->{PostfixQmgrOpts} ne "";
> > seek $Tf, 0, 0;
>
> > now to check these figures I stopped MailScanner, and only started up
> > Postfix, and then sent a message with an attachment. If the queue
> > file one saw:
>
> > *** ENVELOPE RECORDS 247A13580015 ***
> > message_size: 21966 613 1 0 21966
> > message_arrival_time: Mon Oct 17 10:30:47 2011
> > create_time: Mon Oct 17 10:30:47 2011
> > named_attribute: rewrite_context=local
>
> > and after the file has been stripped:
>
> > *** ENVELOPE RECORDS 30E7C358026F ***
> > message_size: 2283 613 1 0 21966
> > message_arrival_time: Mon Oct 17 10:33:23 2011
> > create_time: Mon Oct 17 10:33:23 2011
> > named_attribute: rewrite_context=local
>
> > Note that the first field in message_size has been correctly reduced.
> > When this message then hits the remote MTA it is still being
> > rejected due to the size, even though we have stripped the
> > attachment. I believe the problem is that the final field in
> > message_size part of the envelope is not being updated as-well. Any
> > ideas what the field is ? I am struggling to find it in the Postfix
> > source code; and on checking Postfix.pm I see the following code has
> > been hashed out:
>
> > # If $5 is set then we have a new data structure in the file
> > $MailScanner::Postfix::DataStructure = 0;
> > #if ($5 ne "") {
> > # $MailScanner::Postfix::DataStructure = 1;
> > # $message->{PostfixQmgrOpts} = $5+0;
> > #}
>
> > Any thoughts please ?
> > --
> > Thanks, Phil
>
> > --
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>
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>
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>
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>
> Support MailScanner development - buy the book off the website!
>
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