hi all,
i'm having a strange issue. i have a few dovecot instances running:
1- debian 10 with debian's dovecot-core 1:2.3.4.1-5+deb10u5 2- debian 10 with debian's dovecot-core 1:2.3.4.1-5+deb10u6 3- debian 11 with dovecot's dovecot-core 2:2.3.19.1-2+debian11
for all these, i've just been testing with a static userdb (ignore if the login user was different; they all had the same userdb data.. various different passdb configs were tried (none do any userdb prefetching):
userdb { driver = static args = mail=maildir:/mail/mailstore03/492/177/b@b.com/:INDEX=/mail/index03/492/177/b@b.com/ home=/mail/mailstore03/492/177/b@b.com/ namespace=inbox,share namespace/inbox/separator=/ namespace/share/separator=/ namespace/share/prefix=boop/ }
instance #2 and #3 don't seem to pass all the namespace directives i'm passing through to the imap process.
(i originally found it happening with a lua userdb script then noticed it with a dict userdb, but the simpler static userdb still shows it happening so i don't think it's related to the different userdb mechanisms themselves)
debug looks like:
auth: Debug: master userdb out: USER 3466461185 b@b.com mail=maildir:/mail/mailstore03/492/177/b@b.com/:INDEX=/mail/index03/492/177/b@b.com/ home=/mail/mailstore03/492/177/b@b.com/ namespace=inbox,share namespace/inbox/separator=/ namespace/share/separator=/ namespace/share/prefix=boop/ auth_mech=PLAIN auth_token=bcdb366d56f4fceee83775a1b28ca89ccdf881fd script-login(b@b.com)<56895><>: Debug: Added userdb setting: mail=maildir:/mail/mailstore03/492/177/b@b.com/:INDEX=/mail/index03/492/177/b@b.com/ script-login(b@b.com)<56895><>: Debug: Added userdb setting: namespace=inbox,share script-login(b@b.com)<56895><>: Debug: Added userdb setting: namespace/inbox/separator=/ script-login(b@b.com)<56895><>: Debug: Added userdb setting: namespace/share/prefix=boop/ script-login(b@b.com)<56895><>: Debug: Added userdb setting: namespace/share/separator=/ imap(b@b.com)<56894><9mFyornjaMcKyAUI>: Debug: Added userdb setting: mail=maildir:/mail/mailstore03/492/177/b@b.com/:INDEX=/mail/index03/492/177/b@b.com/ imap(b@b.com)<56894><9mFyornjaMcKyAUI>: Debug: Added userdb setting: namespace=inbox,share imap(b@b.com)<56894><9mFyornjaMcKyAUI>: Debug: Namespace inbox: type=private, prefix=, sep=, inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:/mail/mailstore03/492/177/b@b.com/:INDEX=/mail/index03/492/177/b@b.com/ imap(b@b.com)<56894><9mFyornjaMcKyAUI>: Debug: Namespace : type=private, prefix=, sep=, inbox=no, hidden=no, list=yes, subscriptions=yes location=maildir:/mail/mailstore03/492/177/b@b.com/:INDEX=/mail/index03/492/177/b@b.com/
the script-login task notes that these userdb settings are being added: namespace=inbox,share namespace/inbox/separator=/ namespace/share/prefix=boop/ namespace/share/separator=/
but the imap task only notes one: namespace=inbox,share
both of these two instances end up getting an error because the imap task didn't pick up the prefix: Error: namespace configuration error: Duplicate namespace prefix: ""
instance #1 behaves differently. it's script-login task debug is the same, but the imap debug notes: imap(bigip-imap@nagios.tucows.com)<2146><s3ctO7njd6cKBS39>: Debug: Added userdb setting: mail=maildir:/mail/mailstore03/492/177/b@b.com/:INDEX=/mail/index03/492/177/b@b.com/ imap(bigip-imap@nagios.tucows.com)<2146><s3ctO7njd6cKBS39>: Debug: Added userdb setting: namespace=inbox,share imap(bigip-imap@nagios.tucows.com)<2146><s3ctO7njd6cKBS39>: Debug: Added userdb setting: namespace/inbox/separator=/ imap(bigip-imap@nagios.tucows.com)<2146><s3ctO7njd6cKBS39>: Debug: tc_empty_notify_plugin init imap(bigip-imap@nagios.tucows.com)<2146><s3ctO7njd6cKBS39>: Debug: Namespace inbox: type=private, prefix=, sep=/, inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:/mail/mailstore03/492/177/b@b.com/:INDEX=/mail/index03/492/177/b@b.com/ imap(bigip-imap@nagios.tucows.com)<2146><s3ctO7njd6cKBS39>: Debug: Namespace : type=private, prefix=, sep=, inbox=no, hidden=no, list=yes, subscriptions=yes location=maildir:/mail/mailstore03/492/177/b@b.com/:INDEX=/mail/index03/492/177/b@b.com/
on this one, the imap task notes that it added ALL the namespace directives, and consequently doesn't have any namespace prefix collisions.
the difference between 1:2.3.4.1-5+deb10u5 and 1:2.3.4.1-5+deb10u6 doesn't seem that great, and the bug tracker for it doesn't indicate anything around userdb would be patched (https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=970386)
but the problem still seems to exist in 2.3.19 - can anyone else see the same thing happening with the current builds?
thanks! -brendan