Issue sharing folders with Thunderbird
Jason Perry
jason.perry at dtainc.us
Tue Sep 11 03:08:21 EEST 2018
Hi Aki I see what you are saying, and no I don’t believe so. I’m using typical /etc/passwd for the user db. I reviewed https://wiki.dovecot.org/UserDatabase/ExtraFields <https://wiki.dovecot.org/UserDatabase/ExtraFields> but I’m not clear on how to actually return system_user userdb attribute.
I also have set mail_user_groups = sharedusers in dovecot.conf and then in /etc/group put all the users with mailboxes into the sharedusers group. I can see why that wouldn’t work if the above is not set. Can you point me in the right direction on how to pass that information?
Thanks!
> On Aug 28, 2018, at 12:40 AM, Aki Tuomi <aki.tuomi at dovecot.fi> wrote:
>
> Are you returning system_user userdb attribute? Extra groups from /etc/group are not applied without this.
>
> ---
> Aki Tuomi
> Dovecot oy
>
> -------- Original message --------
> From: Jason Perry <jason.perry at dtainc.us>
> Date: 28/08/2018 04:27 (GMT+02:00)
> To: Aki Tuomi <aki.tuomi at dovecot.fi>
> Cc: dovecot at dovecot.org
> Subject: Re: Issue sharing folders with Thunderbird
>
> Hi Aki, they are.
>
>> 3. The permissions for the file are:
>> root at dal-notify-01 Maildir]# ls -la /var/lib/dovecot/db/shared-mailboxes.db
>> -rw-rw-r--. 1 operations sharedusers 197 Aug 26 20:33 /var/lib/dovecot/db/shared-mailboxes.db
>> 4. Users I'm testing with are part of the sharedusers group in /etc/group
>
> The dir /var/lib/dovecot/db has this for permissions:
> drwsrwsrwx. 2 root sharedusers 33 Aug 27 21:12 db
>
> the user operations is a member of “sharedusers” in /etc/group. I even chmod’ed the permissions after to rw for global and I get the same error/result.
>
> The file does appear to get written to. For example, lets say user u2.name creates a folder called “starbucks” and uses the IMAP commands to share it out to user operations. It seems to write to the acl_shared_dict file in /var/lib/dovecot/db/shared-mailboxes.db with an entry like
>> shared/shared-boxes/user/u2.name/operations
>> 1
>
> And it writes to the ~/Maildir/.starbucks/dovecot-acl file for u2.user with an entry like:
> user=operations lrw
>
> So it appears to be working. However, if I log into Thunderbird with the user operations account and go to subscribe, I do not see “starbucks” in the list of available folders. And I still get the nfs_flush_chown error.
>
> Is there anything else I can be doing with the file/dir permissions?
>
> Thanks.
>
>
>> On Aug 27, 2018, at 10:50 AM, Aki Tuomi <aki.tuomi at dovecot.fi <mailto:aki.tuomi at dovecot.fi>> wrote:
>>
>> acl_shared_dict file & folder must be readwritable by user performing the sharing as stated in wiki.
>>
>> https://wiki.dovecot.org/SharedMailboxes/Shared <https://wiki.dovecot.org/SharedMailboxes/Shared>
>> ---
>> Aki Tuomi
>> Dovecot oy
>>
>> -------- Original message --------
>> From: Jason Perry <jason.perry at dtainc.us <mailto:jason.perry at dtainc.us>>
>> Date: 27/08/2018 17:01 (GMT+02:00)
>> To: dovecot at dovecot.org <mailto:dovecot at dovecot.org>
>> Subject: Issue sharing folders with Thunderbird
>>
>> Trying to share folder "JasonAlerts" within mailbox operations to user u1.name
>>
>> Issues:
>> 1. Shared mailboxes do not appear under subscriptions in Thunderbird for another user
>> 2. When I try to set permissions via IMAP commands I get in /var/log/dovecot.log
>> Aug 26 20:33:24 imap(operations): Error: nfs_flush_chown_uid: chown(/var/lib/dovecot/db) failed: Permission denied
>> 3. The permissions for the file are:
>> root at dal-notify-01 Maildir]# ls -la /var/lib/dovecot/db/shared-mailboxes.db
>> -rw-rw-r--. 1 operations sharedusers 197 Aug 26 20:33 /var/lib/dovecot/db/shared-mailboxes.db
>> 4. Users I'm testing with are part of the sharedusers group in /etc/group
>> 5. IMAP commands DO write to the file:
>> [root at dal-notify-01 Maildir]# cat /var/lib/dovecot/db/shared-mailboxes.db
>> shared/shared-boxes/user/u1.name/u2.name
>> 1
>> shared/shared-boxes/user/operations/u2.name
>> 1
>> shared/shared-boxes/user/u1.name/operations
>> 1
>> shared/shared-boxes/user/u1.name/operations
>> 1
>> 6. It will also write to the user's /home/operations/Maildir/.JasonAlert/dovecot-acl file
>> user=u1.name ilrw
>>
>> However if I got into Thunderbird and try to subscribe, none of the shared folders are listed. Can anyone help?? Thanks!!
>>
>> Dovecot version = 2.2.10
>>
>> dovecot -n
>> [root at server]# dovecot -n
>> # 2.2.10: /etc/dovecot/dovecot.conf
>> # OS: Linux 3.10.0-693.17.1.el7.x86_64 x86_64 CentOS Linux release 7.4.1708 (Core)
>> first_valid_uid = 100
>> listen = *
>> log_path = /var/log/dovecot.log
>> mail_debug = yes
>> mail_location = maildir:~/Maildir
>> mail_plugins = acl
>> mail_privileged_group = mail
>> mbox_write_locks = fcntl
>> namespace Private {
>> hidden = no
>> inbox = no
>> list = no
>> location =
>> prefix = Private/
>> separator = /
>> type = private
>> }
>> namespace Public {
>> hidden = no
>> inbox = no
>> list = no
>> location = maildir:/var/mail/public
>> prefix = Public/
>> separator = /
>> subscriptions = yes
>> type = public
>> }
>> namespace Shared {
>> hidden = no
>> inbox = no
>> list = yes
>> location = maildir:/var/mail/%u:INDEXPVT=~/Maildir/%u
>> prefix = shared/%u/
>> separator = /
>> subscriptions = yes
>> type = shared
>> }
>> namespace inbox {
>> inbox = yes
>> location =
>> mailbox Drafts {
>> special_use = \Drafts
>> }
>> mailbox Junk {
>> special_use = \Junk
>> }
>> mailbox Sent {
>> special_use = \Sent
>> }
>> mailbox "Sent Messages" {
>> special_use = \Sent
>> }
>> mailbox Trash {
>> special_use = \Trash
>> }
>> prefix =
>> separator = /
>> }
>> passdb {
>> driver = pam
>> }
>> passdb {
>> driver = pam
>> }
>> plugin {
>> acl = vfile
>> acl_shared_dict = file:/var/lib/dovecot/db/shared-mailboxes.db <file:///var/lib/dovecot/db/shared-mailboxes.db>
>> }
>> protocols = imap
>> ssl_cert = </etc/pki/dovecot/certs/dovecot.pem
>> ssl_key = </etc/pki/dovecot/private/dovecot.pem
>> syslog_facility = local2
>> userdb {
>> driver = passwd
>> }
>> userdb {
>> driver = passwd
>> }
>> protocol imap {
>> mail_plugins = acl imap_acl
>> }
>
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