[Dovecot] Read-only mail folders

[Chris Wakelin]

I've had a go at adding a "readonly" namespace option to 
dovecot-1.0-stable. My idea is to provide access to NetApp ".snapshot" 
versions of NFS-mounted maildirs to let users recover their own 
messages. I'm not sure whether anyone else would find it useful, but 
here it is in case :-)

There are two patches, one to add the option, the other to add some 
checking to various IMAP commands just in case the client doesn't 
behave itself when told the mailbox is read-only ;-)

It's used something like :

namespace private {
  separator = "/"
  prefix = "#snapshot/"
  location = 
maildir:%h/Maildir/.snapshot/nightly.0:INDEX=/export/mail/%h/.S
napshot-indexes:CONTROL=/export/mail/%h/.Snapshot-indexes
  hidden = yes
  readonly = yes
}

I've not tested it very thoroughly, and none of our users have Maildirs 
on the NetApp yet ...

Of course, this will all be redundant when we have ACL support.

Best Wishes,
Chris

On Tue, 15 Mar 2005 23:06:24 +0200 Timo Sirainen <tss at iki.fi> wrote:

> On Tue, 2005-03-15 at 09:11 +0000, Chris Wakelin wrote:
> > Is it possible to have folders on read-only partitions in Dovecot 
> > 1.0-stable?
> 
> Only if you set the permissions so that Dovecot really doesn't have
> write access there. Other permission checks will come with ACL code some
> day..
 
--+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+--
Christopher Wakelin,                                c.d.wakelin at reading.ac.uk
IT Services Centre, The University of Reading,       Tel: +44 (0)118 378 8439
Whiteknights, Reading, RG6 2AF, UK                   Fax: +44 (0)118 975 3094
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