PDFs getting mangled
Since upgrading to 2.3.0 / 0.5.0.1, incoming PDFs are getting mangled. It seems to be happening when I use vnd.dovecot.filter. When I comment out the block, things come through fine.
My filter block looks like this: require "vnd.dovecot.filter"; filter "bogofilter_filter";
if header :contains "X-Bogosity" [
"Spam, tests=bogofilter, spamicity=1.00",
"Spam, tests=bogofilter, spamicity=0.99"
] {
fileinto "spam/totally";
stop;
}
elsif header :contains "X-Bogosity" "Spam," {
fileinto "spam/probably";
stop;
}
elsif header :contains "X-Bogosity" "Unsure," {
fileinto "spam/maybe";
stop;
}filter/bogofilter_filter looks like this: #!/bin/sh cat /dev/stdin | /usr/local/bin/bogofilter -p -e -c /path/to/bogofilter.cf
Images seem to come through fine. I didn't have this problem before the upgrade. It could easily be a problem with bogofilter, but I figured that I'd check here first to see if anybody else has an attachment-mangling issue with vnd.dovecot.filter.
# Adam
-- Adam Weinberger adamw@adamw.org http://www.adamw.org
On 19.01.2018 04:35, Adam Weinberger wrote:
Since upgrading to 2.3.0 / 0.5.0.1, incoming PDFs are getting mangled. It seems to be happening when I use vnd.dovecot.filter. When I comment out the block, things come through fine.
My filter block looks like this: require "vnd.dovecot.filter"; filter "bogofilter_filter";
if header :contains "X-Bogosity" [ "Spam, tests=bogofilter, spamicity=1.00", "Spam, tests=bogofilter, spamicity=0.99" ] { fileinto "spam/totally"; stop; } elsif header :contains "X-Bogosity" "Spam," { fileinto "spam/probably"; stop; } elsif header :contains "X-Bogosity" "Unsure," { fileinto "spam/maybe"; stop; }filter/bogofilter_filter looks like this: #!/bin/sh cat /dev/stdin | /usr/local/bin/bogofilter -p -e -c /path/to/bogofilter.cf
Images seem to come through fine. I didn't have this problem before the upgrade. It could easily be a problem with bogofilter, but I figured that I'd check here first to see if anybody else has an attachment-mangling issue with vnd.dovecot.filter.
# Adam
-- Adam Weinberger adamw@adamw.org http://www.adamw.org It might work better with
exec /usr/local/bin/bogofilter -p -e -c /path/to/bogofilter.cf
Aki
On 19 Jan, 2018, at 4:39, Aki Tuomi aki.tuomi@dovecot.fi wrote:
On 19.01.2018 04:35, Adam Weinberger wrote:
Since upgrading to 2.3.0 / 0.5.0.1, incoming PDFs are getting mangled. It seems to be happening when I use vnd.dovecot.filter. When I comment out the block, things come through fine.
My filter block looks like this: require "vnd.dovecot.filter"; filter "bogofilter_filter";
if header :contains "X-Bogosity" [ "Spam, tests=bogofilter, spamicity=1.00", "Spam, tests=bogofilter, spamicity=0.99" ] { fileinto "spam/totally"; stop; } elsif header :contains "X-Bogosity" "Spam," { fileinto "spam/probably"; stop; } elsif header :contains "X-Bogosity" "Unsure," { fileinto "spam/maybe"; stop; }filter/bogofilter_filter looks like this: #!/bin/sh cat /dev/stdin | /usr/local/bin/bogofilter -p -e -c /path/to/bogofilter.cf
Images seem to come through fine. I didn't have this problem before the upgrade. It could easily be a problem with bogofilter, but I figured that I'd check here first to see if anybody else has an attachment-mangling issue with vnd.dovecot.filter.
# Adam
-- Adam Weinberger adamw@adamw.org http://www.adamw.org It might work better with
exec /usr/local/bin/bogofilter -p -e -c /path/to/bogofilter.cf
Aki
Thank you! While that didn't fix the problem, it did clue me into trying
just "cat /dev/stdin" to conclude that it's bogofilter that's misbehaving.
# Adam
-- Adam Weinberger adamw@adamw.org http://www.adamw.org
On 19 Jan, 2018, at 4:39, Aki Tuomi aki.tuomi@dovecot.fi wrote:
On 19.01.2018 04:35, Adam Weinberger wrote:
Since upgrading to 2.3.0 / 0.5.0.1, incoming PDFs are getting mangled. It seems to be happening when I use vnd.dovecot.filter. When I comment out the block, things come through fine.
My filter block looks like this: require "vnd.dovecot.filter"; filter "bogofilter_filter";
if header :contains "X-Bogosity" [ "Spam, tests=bogofilter, spamicity=1.00", "Spam, tests=bogofilter, spamicity=0.99" ] { fileinto "spam/totally"; stop; } elsif header :contains "X-Bogosity" "Spam," { fileinto "spam/probably"; stop; } elsif header :contains "X-Bogosity" "Unsure," { fileinto "spam/maybe"; stop; }filter/bogofilter_filter looks like this: #!/bin/sh cat /dev/stdin | /usr/local/bin/bogofilter -p -e -c /path/to/bogofilter.cf
Images seem to come through fine. I didn't have this problem before the upgrade. It could easily be a problem with bogofilter, but I figured that I'd check here first to see if anybody else has an attachment-mangling issue with vnd.dovecot.filter.
# Adam
-- Adam Weinberger adamw@adamw.org http://www.adamw.org It might work better with
exec /usr/local/bin/bogofilter -p -e -c /path/to/bogofilter.cf
Aki
After looking into this some more, what's happening is that messages are
getting truncated. Regardless of whether it's an attachment or just a long
message body, the message gets truncated.
To show this, I made a fileinto :copy rule to save a message copy before it
gets sent off to bogofilter.
You can see from the below pastings that the message is definitely getting
truncated. When I replace my filter script with "cat /dev/stdin", it works
fine. When I send the message to bogofilter on the command-line, it works
fine. Something about the combination of vnd.dovecot.filter + bogofilter is
causing the messages to truncate, and I don't know whether it's from
truncating on the send or receive of the filter.
Can you give me any advice?
$ jot 200000 1 > numbers.txt $ du -a . | grep numbers 1260 ./numbers-sent.txt 1248 ./numbers-received.txt
root@imap:~# ll test-* 125 -rw------- 1 root wheel 123K Jan 20 09:35 test-afterbogo.msg 149 -rw------- 1 root wheel 136K Jan 20 09:35 test-beforebogo.msg
root@imap:~# tail -20 test-beforebogo.msg IAowMDAwMTAxMTUzIDAwMDAwIG4gCjAwMDAxMDEyMDYgMDAwMDAgbiAKMDAwMDEwMTIzMiAwMDAw MCBuIAowMDAwMTAxMjc0IDAwMDAwIG4gCjAwMDAxMDEyOTMgMDAwMDAgbiAKdHJhaWxlcgo8PCAv U2l6ZSAxOSAvUm9vdCAxMiAwIFIgL0luZm8gMSAwIFIgL0lEIFsgPGM2YTE5OTc3MWRmODZjODk0 YzJhNDIwZDUzZjU3YzAzPgo8YzZhMTk5NzcxZGY4NmM4OTRjMmE0MjBkNTNmNTdjMDM+IF0gPj4K c3RhcnR4cmVmCjEwMTQ1NwolJUVPRgo= --Apple-Mail=_6BE3438D-2544-4A5B-8D67-44E4A7E33BA5 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=us-ascii; delsp=yes; format=flowed
Adam Weinberger adamw@adamw.org http://www.adamw.org
--Apple-Mail=_6BE3438D-2544-4A5B-8D67-44E4A7E33BA5--
root@imap:~# tail -20 test-afterbogo.msg CkGE66EHXl45NsGeItQOxE5P4ONNu/mZPUXdOF/pOOBI9ACqvQxFvW162vb9cG7hXCioruIo+2ES Wtn+UT2t6Yv2YgpTlOhTXD5riRQ4vlEWepl6tvU6ZOj+Hhpm5INo8B2Nz6XHiU2Ohz333pyvZj6M 9cQeY0Oi8pzB5qzHlH16DZiMeth/a66YRspD4uvuvziGSiLxxx2ghYaFOL6VhVuI9YOhuyZrfZ3C drtt27RNfwboY6iERO0zZKE0dzqDx3WcaxkzABLu6vgjBo6OeG5O4nwidEzSUciJU41Yh1q9rjWQ z9GBrRJxpSOhzZQubWwQR3xJfGAOjgDDcHQJ56jNpGdVjoG3pvgu5lEKxmKwTsHGrxkuh5WT4g/O dXsiK8IvxjVJmx0oKF3OAtdvGUxACg/3onJx6uiKFRCI/GL4AtahLiEUHXPVcXDSSkJ0XY9lxXxY Ucu+H5xcbSVe98Eh12HxXpHFQjdBvJf79XM0kYhi/KHyGMCqrYZNBsRg6lOucyClarTvwKC6GfwB 2RTwhE+nCnmIgx3A4JBrYA92Qy0wSCrO6VyWt0D3eiZYEseLIflww0Q6IoPuK89g7Y7QdIH3MRQ7 QghQ7WWefQ9A4NE5Hoj0To5G6QBOsfmT2ROmEACdIlYdiH1qblfCh8inz6Ox16XdP941NC4f8PPz isEgdId5LlPyJDi9fRgIdURTYzqwnk4YhRKtUnDNDbDojLk3qbPs9XTfVCXb6lKfkDKgnECsautd Rj8ikTwlPC/eA4vDE0AAtB4Erm3AaTC8wh7/AJMn8dnYKLty7ZmZIU1smt7OHvxPRfpWtE9HsnwH JFPp9UguEIhweW3AAAAHAYeguJjkDyI8mJqCpIZtWpDk3rwEFVUE5HqjonCeumwGF5N+NJr1cKTx DGnpOo8NPGEIri13UJySpHjpqZxXe+/D+/T/APAr/pPT/ndn8DahqidSDjkL5V6YyNaU4eT2H4PV MKRUpASwDr1UCmBtXBKra8rH8EfvHUTgZyp9gPxnB4RTxr9k9wrwejJKRG3MPKcHVDDOaVQxC30D TNR6wJy5UEHY6A8lfbNyJEUBo4VN74JrYgzjSOgQatEZ474e14GgvHJFNhFm2Usa3iI7yG/M95gc XEKI8I9TIg087R/s+uPjTR0AaHy359TDzr0861/J5fx28TEIO4Jsh7AB8Y1wvymNfwLnF6Bgj8nf 1taKM9U8NO0nWHRgFTWaNrRyRV37BhnjLrmxFHXtjxm6iaKuxfI+KIO89G1M7rSa89ZghRuqA/Kz IZNNURgeCvjOp5SHqq1snTUjcFJ4XZNA4SwE50lTNBajww6boqGlslH0UJz3wGd9p9nIv0NIhED0 CQm9W7mGJ9zgfcB1G6
-- Adam Weinberger adamw@adamw.org http://www.adamw.org
On 20 Jan, 2018, at 10:05, Adam Weinberger adamw@adamw.org wrote:
On 19 Jan, 2018, at 4:39, Aki Tuomi aki.tuomi@dovecot.fi wrote:
On 19.01.2018 04:35, Adam Weinberger wrote:
Since upgrading to 2.3.0 / 0.5.0.1, incoming PDFs are getting mangled. It seems to be happening when I use vnd.dovecot.filter. When I comment out the block, things come through fine.
My filter block looks like this: require "vnd.dovecot.filter"; filter "bogofilter_filter";
if header :contains "X-Bogosity" [ "Spam, tests=bogofilter, spamicity=1.00", "Spam, tests=bogofilter, spamicity=0.99" ] { fileinto "spam/totally"; stop; } elsif header :contains "X-Bogosity" "Spam," { fileinto "spam/probably"; stop; } elsif header :contains "X-Bogosity" "Unsure," { fileinto "spam/maybe"; stop; }filter/bogofilter_filter looks like this: #!/bin/sh cat /dev/stdin | /usr/local/bin/bogofilter -p -e -c /path/to/bogofilter.cf
Images seem to come through fine. I didn't have this problem before the upgrade. It could easily be a problem with bogofilter, but I figured that I'd check here first to see if anybody else has an attachment-mangling issue with vnd.dovecot.filter.
# Adam
-- Adam Weinberger adamw@adamw.org http://www.adamw.org It might work better with
exec /usr/local/bin/bogofilter -p -e -c /path/to/bogofilter.cf
Aki
After looking into this some more, what's happening is that messages are
getting truncated. Regardless of whether it's an attachment or just a
long message body, the message gets truncated.To show this, I made a fileinto :copy rule to save a message copy before
it gets sent off to bogofilter.You can see from the below pastings that the message is definitely
getting truncated. When I replace my filter script with "cat /dev/stdin",
it works fine. When I send the message to bogofilter on the command-line,
it works fine. Something about the combination of vnd.dovecot.filter +
bogofilter is causing the messages to truncate, and I don't know whether
it's from truncating on the send or receive of the filter.Can you give me any advice?
$ jot 200000 1 > numbers.txt $ du -a . | grep numbers 1260 ./numbers-sent.txt 1248 ./numbers-received.txt
root@imap:~# ll test-* 125 -rw------- 1 root wheel 123K Jan 20 09:35 test-afterbogo.msg 149 -rw------- 1 root wheel 136K Jan 20 09:35 test-beforebogo.msg
The more I look into it, the more it looks to me like pigeonhole is somehow
losing the last 4-6K of messages over 100K.
When my filter script is:
cat /dev/stdin | tee /tmp/input | bogofilter[...] | tee /tmp/output
Then /tmp/output is the full message, but what pigeonhole gets back is
truncated at by about 4K.
Same with [...] bogofilter[...] > /tmp/output; cat /tmp/output The message is truncated there too.
I've tried everything I can think of to make sure it's not a buffering
problem:
[...] bogofilter[...] | cat
[...] bogofilter[...] | dd bs=1k
[...] bogofilter[...] ; a=$?; sleep 2; exit $a
But everything I do comes up with the same problem.
But a simple "cat /dev/stdin" and the message comes through fine.
Your help is really appreciated. I'm in the process of buying a house, so
the mangled attachments is not coming at a great time :-)
# Adam
-- Adam Weinberger adamw@adamw.org http://www.adamw.org
Op 1/20/2018 om 11:01 PM schreef Adam Weinberger:
On 20 Jan, 2018, at 10:05, Adam Weinberger adamw@adamw.org wrote:
On 19 Jan, 2018, at 4:39, Aki Tuomi aki.tuomi@dovecot.fi wrote:
On 19.01.2018 04:35, Adam Weinberger wrote:
Since upgrading to 2.3.0 / 0.5.0.1, incoming PDFs are getting mangled. It seems to be happening when I use vnd.dovecot.filter. When I comment out the block, things come through fine.
My filter block looks like this: require "vnd.dovecot.filter"; filter "bogofilter_filter";
if header :contains "X-Bogosity" [ "Spam, tests=bogofilter, spamicity=1.00", "Spam, tests=bogofilter, spamicity=0.99" ] { fileinto "spam/totally"; stop; } elsif header :contains "X-Bogosity" "Spam," { fileinto "spam/probably"; stop; } elsif header :contains "X-Bogosity" "Unsure," { fileinto "spam/maybe"; stop; }
filter/bogofilter_filter looks like this: #!/bin/sh cat /dev/stdin | /usr/local/bin/bogofilter -p -e -c /path/to/bogofilter.cf
Images seem to come through fine. I didn't have this problem before the upgrade. It could easily be a problem with bogofilter, but I figured that I'd check here first to see if anybody else has an attachment-mangling issue with vnd.dovecot.filter.
# Adam
-- Adam Weinberger adamw@adamw.org http://www.adamw.org It might work better with
exec /usr/local/bin/bogofilter -p -e -c /path/to/bogofilter.cf
Aki
After looking into this some more, what's happening is that messages are getting truncated. Regardless of whether it's an attachment or just a long message body, the message gets truncated.
To show this, I made a fileinto :copy rule to save a message copy before it gets sent off to bogofilter.
You can see from the below pastings that the message is definitely getting truncated. When I replace my filter script with "cat /dev/stdin", it works fine. When I send the message to bogofilter on the command-line, it works fine. Something about the combination of vnd.dovecot.filter + bogofilter is causing the messages to truncate, and I don't know whether it's from truncating on the send or receive of the filter.
Can you give me any advice?
$ jot 200000 1 > numbers.txt $ du -a . | grep numbers 1260 ./numbers-sent.txt 1248 ./numbers-received.txt
root@imap:~# ll test-* 125 -rw------- 1 root wheel 123K Jan 20 09:35 test-afterbogo.msg 149 -rw------- 1 root wheel 136K Jan 20 09:35 test-beforebogo.msg
The more I look into it, the more it looks to me like pigeonhole is somehow losing the last 4-6K of messages over 100K.
When my filter script is: cat /dev/stdin | tee /tmp/input | bogofilter[...] | tee /tmp/output Then /tmp/output is the full message, but what pigeonhole gets back is truncated at by about 4K.
Same with [...] bogofilter[...] > /tmp/output; cat /tmp/output The message is truncated there too.
I've tried everything I can think of to make sure it's not a buffering problem: [...] bogofilter[...] | cat [...] bogofilter[...] | dd bs=1k [...] bogofilter[...] ; a=$?; sleep 2; exit $a
But everything I do comes up with the same problem.
But a simple "cat /dev/stdin" and the message comes through fine.
Your help is really appreciated. I'm in the process of buying a house, so the mangled attachments is not coming at a great time :-)
We are looking into it.
Regards,
Stephan.
Op 1/21/2018 om 4:34 PM schreef Stephan Bosch:
Op 1/20/2018 om 11:01 PM schreef Adam Weinberger:
On 20 Jan, 2018, at 10:05, Adam Weinberger adamw@adamw.org wrote:
On 19 Jan, 2018, at 4:39, Aki Tuomi aki.tuomi@dovecot.fi wrote:
On 19.01.2018 04:35, Adam Weinberger wrote:
Since upgrading to 2.3.0 / 0.5.0.1, incoming PDFs are getting mangled. It seems to be happening when I use vnd.dovecot.filter. When I comment out the block, things come through fine.
My filter block looks like this: require "vnd.dovecot.filter"; filter "bogofilter_filter";
if header :contains "X-Bogosity" [ "Spam, tests=bogofilter, spamicity=1.00", "Spam, tests=bogofilter, spamicity=0.99" ] { fileinto "spam/totally"; stop; } elsif header :contains "X-Bogosity" "Spam," { fileinto "spam/probably"; stop; } elsif header :contains "X-Bogosity" "Unsure," { fileinto "spam/maybe"; stop; }
filter/bogofilter_filter looks like this: #!/bin/sh cat /dev/stdin | /usr/local/bin/bogofilter -p -e -c /path/to/bogofilter.cf
Images seem to come through fine. I didn't have this problem before the upgrade. It could easily be a problem with bogofilter, but I figured that I'd check here first to see if anybody else has an attachment-mangling issue with vnd.dovecot.filter.
# Adam
-- Adam Weinberger adamw@adamw.org http://www.adamw.org It might work better with
exec /usr/local/bin/bogofilter -p -e -c /path/to/bogofilter.cf
Aki After looking into this some more, what's happening is that messages are getting truncated. Regardless of whether it's an attachment or just a long message body, the message gets truncated.
To show this, I made a fileinto :copy rule to save a message copy before it gets sent off to bogofilter.
You can see from the below pastings that the message is definitely getting truncated. When I replace my filter script with "cat /dev/stdin", it works fine. When I send the message to bogofilter on the command-line, it works fine. Something about the combination of vnd.dovecot.filter + bogofilter is causing the messages to truncate, and I don't know whether it's from truncating on the send or receive of the filter.
Can you give me any advice?
$ jot 200000 1 > numbers.txt $ du -a . | grep numbers 1260 ./numbers-sent.txt 1248 ./numbers-received.txt
root@imap:~# ll test-* 125 -rw------- 1 root wheel 123K Jan 20 09:35 test-afterbogo.msg 149 -rw------- 1 root wheel 136K Jan 20 09:35 test-beforebogo.msg The more I look into it, the more it looks to me like pigeonhole is somehow losing the last 4-6K of messages over 100K.
When my filter script is: cat /dev/stdin | tee /tmp/input | bogofilter[...] | tee /tmp/output Then /tmp/output is the full message, but what pigeonhole gets back is truncated at by about 4K.
Same with [...] bogofilter[...] > /tmp/output; cat /tmp/output The message is truncated there too.
I've tried everything I can think of to make sure it's not a buffering problem: [...] bogofilter[...] | cat [...] bogofilter[...] | dd bs=1k [...] bogofilter[...] ; a=$?; sleep 2; exit $a
But everything I do comes up with the same problem.
But a simple "cat /dev/stdin" and the message comes through fine.
Your help is really appreciated. I'm in the process of buying a house, so the mangled attachments is not coming at a great time :-) We are looking into it.
Problem found; working on a fix.
Regards,
Stephan.
Op 1/22/2018 om 8:58 PM schreef Stephan Bosch:
Op 1/21/2018 om 4:34 PM schreef Stephan Bosch:
Op 1/20/2018 om 11:01 PM schreef Adam Weinberger:
On 20 Jan, 2018, at 10:05, Adam Weinberger adamw@adamw.org wrote:
On 19 Jan, 2018, at 4:39, Aki Tuomi aki.tuomi@dovecot.fi wrote:
On 19.01.2018 04:35, Adam Weinberger wrote:
Since upgrading to 2.3.0 / 0.5.0.1, incoming PDFs are getting mangled. It seems to be happening when I use vnd.dovecot.filter. When I comment out the block, things come through fine.
My filter block looks like this: require "vnd.dovecot.filter"; filter "bogofilter_filter";
if header :contains "X-Bogosity" [ "Spam, tests=bogofilter, spamicity=1.00", "Spam, tests=bogofilter, spamicity=0.99" ] { fileinto "spam/totally"; stop; } elsif header :contains "X-Bogosity" "Spam," { fileinto "spam/probably"; stop; } elsif header :contains "X-Bogosity" "Unsure," { fileinto "spam/maybe"; stop; }
filter/bogofilter_filter looks like this: #!/bin/sh cat /dev/stdin | /usr/local/bin/bogofilter -p -e -c /path/to/bogofilter.cf
Images seem to come through fine. I didn't have this problem before the upgrade. It could easily be a problem with bogofilter, but I figured that I'd check here first to see if anybody else has an attachment-mangling issue with vnd.dovecot.filter.
# Adam
-- Adam Weinberger adamw@adamw.org http://www.adamw.org It might work better with
exec /usr/local/bin/bogofilter -p -e -c /path/to/bogofilter.cf
Aki After looking into this some more, what's happening is that messages are getting truncated. Regardless of whether it's an attachment or just a long message body, the message gets truncated.
To show this, I made a fileinto :copy rule to save a message copy before it gets sent off to bogofilter.
You can see from the below pastings that the message is definitely getting truncated. When I replace my filter script with "cat /dev/stdin", it works fine. When I send the message to bogofilter on the command-line, it works fine. Something about the combination of vnd.dovecot.filter + bogofilter is causing the messages to truncate, and I don't know whether it's from truncating on the send or receive of the filter.
Can you give me any advice?
$ jot 200000 1 > numbers.txt $ du -a . | grep numbers 1260 ./numbers-sent.txt 1248 ./numbers-received.txt
root@imap:~# ll test-* 125 -rw------- 1 root wheel 123K Jan 20 09:35 test-afterbogo.msg 149 -rw------- 1 root wheel 136K Jan 20 09:35 test-beforebogo.msg The more I look into it, the more it looks to me like pigeonhole is somehow losing the last 4-6K of messages over 100K.
When my filter script is: cat /dev/stdin | tee /tmp/input | bogofilter[...] | tee /tmp/output Then /tmp/output is the full message, but what pigeonhole gets back is truncated at by about 4K.
Same with [...] bogofilter[...] > /tmp/output; cat /tmp/output The message is truncated there too.
I've tried everything I can think of to make sure it's not a buffering problem: [...] bogofilter[...] | cat [...] bogofilter[...] | dd bs=1k [...] bogofilter[...] ; a=$?; sleep 2; exit $a
But everything I do comes up with the same problem.
But a simple "cat /dev/stdin" and the message comes through fine.
Your help is really appreciated. I'm in the process of buying a house, so the mangled attachments is not coming at a great time :-) We are looking into it. Problem found; working on a fix.
Fix pending:
https://github.com/stephanbosch/dovecot-core/commits/fix-program-client-big-...
This is a feature branch of 9 commits containing the fix and also cleanups and reliability improvements. This is of course based on master.
Regards,
Stephan.
participants (3)
-
Adam Weinberger
-
Aki Tuomi
-
Stephan Bosch