[Dovecot] how to talk with doveadmin unix socket

[Piotr Rotter]

W dniu 01.03.2013 23:14, Piotr Rotter pisze:
> W dniu 28.02.2013 08:03, Nikita Koshikov pisze:
>> On Thu, Feb 28, 2013 at 1:53 AM, Piotr Rotter
>> <piotr.rotter at active24.pl>wrote:
>>
>>> Hello,
>>>
>>> I would like to get mailbox quota by doveadm unix socket
>>> (/var/run/dovecor/doveadm-**server). I get from strace syntax of
>>> comunication:
>>>
>>> write(9,
>>> "VERSION\t1\t0\nUSER\t1\tpiotr**.rotter at active24.pl<tpiotr.rotter at active24.pl>
>>>
>>> \tservice=**doveadm\n", 60) = 60
>>> read(9, "VERSION\t1\t1\nSPID\t20805\n"**, 8192) = 23
>>> read(9, "USER\t1\tpiotr.rotter@**active24.pl <tpiotr.rotter at active24.pl>
>>> \temail=piotr.**rotter at active24.pl <piotr.rotter at active24.pl>\tclear=**
>>> 7T33z456\thome=/vm/08/A/active**24.pl/piotr.rotter/\tuid=502\**
>>> tgid=502\tquota_rule=*:**storage=2097152000B\tquota_**
>>> rule2=*:messages=50000\n<http://active24.pl/piotr.rotter/%5Ctuid=502%5Ctgid=502%5Ctquota_rule=*:storage=2097152000B%5Ctquota_rule2=*:messages=50000%5Cn>",
>>>
>>> 8169) = 196
>>>
>>> and I wrote super simple client in php:
>>>
>>> <?php
>>> $sock =
>>> stream_socket_client('unix:///**var/run/dovecot/doveadm-**server',
>>> $errno, $errstr);
>>> fwrite($sock,
>>> "VERSION\t1\t0\nUSER\t1\tpiotr**.rotter at active24.pl<tpiotr.rotter at active24.pl>
>>>
>>> \tservice=**doveadm\n");
>>> echo fread($sock, 4096)."\n";
>>> echo fread($sock, 4096)."\n";
>>> fclose($sock);
>>> ?>
>>>
>>> But i get only "+" sign and line in errorlog as below:
>>>
>>> 2013-02-28T00:39:56.377437+01:**00 kurier9 dovecot: doveadm: Error:
>>> doveadm client not compatible with this server (mixed old and new
>>> binaries?)
>>>
>>> I would be very grateful for your help with this problem, what I doing
>>> wrong.
>>>
>>> My current dovecot version is 2.1.13
>>>
>>>
>> Here is my example on perl
>>
>>          socket(TSOCK, PF_UNIX, SOCK_STREAM,0);
>>          connect(TSOCK, sockaddr_un("$conf{quota_socket}"));
>>
>>          if ($? != 0) {
>>                    #error here
>>          }
>>
>>          #After connect on socket, dovecot returns "+" or "-". Just a
>> simple
>> check for data.
>>          if (defined(my $answer = <TSOCK>)) {
>>
>>                  print TSOCK "VERSION\tdoveadm-server\t1\t0\n";
>>                  print TSOCK "PLAIN\t$conf{'doveadm_password'}\n";
>>                  TSOCK->flush;
>>                  #'+' here
>>                  $answer=<TSOCK>;
>>                  print TSOCK "\t$local_part\@$domain\tquota get\n";
>>                  TSOCK->flush;
>>
>>                  my $quota_data = <TSOCK>;
>>
>>
>>                  #"+" if everything is OK
>>                  $answer = <TSOCK>;
>>
>>                  close TSOCK;
>> }
>>
>> Don't forget to set doveadm_password= in dovecot config(clearttext)
>> and you
>> must encode password in base64 for using in a script (after PLAIN
>> command).
>>
>> PS
>> dovecot version 2.1.15 here.
>>
>
> Hi,
>
> Thank You for example but I still don't know what I doing wrong.
>
> I set that in master.cf
>
> service doveadm {
>      unix_listener doveadm-server {
>      mode = 0666
>      }
> }
> doveadm_password=foobar
>
> My script now look like that:
>
> $DOVEADM_PASS = base64_encode('foobar');
> $sock = stream_socket_client('unix:///var/run/dovecot/doveadm-server',
> $errno, $errstr);
> echo fread($sock, 4096)."\n";
> fwrite($sock, "VERSION\tdoveadm-server\t1\t0\n");
> fwrite($sock, "PLAIN\t$DOVEADM_PASS\n");
> fflush($sock);
> echo fread($sock, 4096)."\n";
> fwrite($sock, "\tpiotr.rotter at active24.pl\tquota get\n");
> fflush($sock);
> echo fread($sock, 4096)."\n";
> fclose($sock);
>
> I get two times "-" and that in logs
>
> dovecot: doveadm: Error: doveadm client didn't authenticate as 'doveadm'
>
> Please give me any tip.
>

Hi,

I solve this, I found this code

266	if (size < 10 || data[0] != '\0' ||
267	    memcmp(data+1, "doveadm", 7) != 0 || data[8] != '\0') {
268		i_error("doveadm client didn't authenticate as 'doveadm'");
269		return -1;
270	}

This mean that I don't understood that PLAIN is PLAIN and nothing else.

That is solution:
$DOVEADM_PASS = base64_encode("\0doveadm\0foobar");

Thank You for help again.