Hi,
i'm running Dovecot 2.3.14.alpha0 with shared namespaces
and stumbled across some errors messages logged,
when the list of subscribed mailboxes is queried by a client.
For every distinct account of in the list of subscriptions
two corresponding lines are logged:
Jan 28 11:42:34 mx1 dovecot: auth: missing passwd file:
/etc/dovecot/private/example/users
Jan 28 11:42:34 mx1 dovecot: auth: missing passwd file:
/etc/dovecot/private/example/users
Jan 28 11:42:34 mx1 dovecot: auth: missing passwd file:
/etc/dovecot/private/example/users
Jan 28 11:42:36 mx1 dovecot:
imap(example_u...@example.com)<3638><xl6li/O5VsVfWxyn>: Error:
mkdir(/var/run/dovecot/user-not-found/noc@example) failed: Permission denied
(euid=109(vmail) egid=118(vmail) missing +w perm: /var/run/dovecot, dir owned
by 0:0 mode=0755)
Jan 28 11:42:36 mx1 dovecot:
imap(example_u...@example.com)<3638><xl6li/O5VsVfWxyn>: Error:
mkdir(/var/run/dovecot/user-not-found/info@example) failed: Permission denied
(euid=109(vmail) egid=118(vmail) missing +w perm: /var/run/dovecot, dir owned
by 0:0 mode=0755)
Jan 28 11:42:36 mx1 dovecot:
imap(example_u...@example.com)<3638><xl6li/O5VsVfWxyn>: Error:
mkdir(/var/run/dovecot/user-not-found/root@example) failed: Permission denied
(euid=109(vmail) egid=118(vmail) missing +w perm: /var/run/dovecot, dir owned
by 0:0 mode=0755)
Similar messages are logged,
when invalid entries are listed in '/var/lib/dovecot/db/shared-mailboxes',
which i already pruned and haven't received them anymore since.
I think these errors are caused by an unintended behaviour
when writing "~/Maildir/subscriptions",
which looks (shortened) like this.
V 2
INBOX/INBOX
shared/noc@example com/INBOX
shared/info@example com/INBOX
shared/root@example com/test
shared/root@example com/test test_sub
The subscription-file.c
explodes the name on every hierarchy separator ('.','\0') and
inserts a TAB character. Unfortunately it also explodes on
the DNS label delimiter „.‟. This should probably be fixed
by passing a structure containing the required information
to the formatter to distinguish mailboxes from domain-names.
Subscription in combination with multiple domains and
shared mailboxes seems broken to me. Actually i can't even explain to me,
why it is working in face of the errors. :-)
Unfortunately in Maildir++ the separator dot is hard-coded.
There is a very old thread on this mailing list,
that suggests using „auth_username_translation‟
to replace dots with a different character,
but this idea is getting worse the longer i think about it.
I absolutely dislike the idea to set LAYOUT=fs,
namespace/separator = § to change the separators
to split on, because this would mean to restructure the
physical layout of all mailboxes (hierarchically) and
mess around with lots of files.
I attached a dovecot-sysreport to reproduce the behaviour.
/etc/dovecot/private/example.com/users looks like this:
### user:password:uid:gid:(gecos):home:(shell):extra_fields
noc:{SSHA512}_hash_::::::
info:{SSHA512}_hash_::::::
root:{SSHA512}_hash_::::::
Please correct me if i'm wrong or
point me to a workaround,
but i think the layout code needs some love. :-)
Best regards
Tobias
