> Enable the imapmagicplus option in imapd.conf
With this option I could login with imtest specifying "+DAV" for the
user, both as the admin and as a regular user, but then when trying to
select a folder, I got "NO Permission denied" for the admin and "NO
Mailbox does not exist" for a common user. This looks like undocumented
magic and mbexamine actually provides all needed information, so I will
get file details with it.
Thanks for you help, Ken.
*From:* Ken Murchison
*Sent:* Friday, November 16, 2018 13:17
*To:* Info-cyrus
*Subject:* Re: WebDAV folders internally have hundreds of copies of the
same few files
On 11/16/18 1:19 AM, Anatoli wrote:
Ken,
> If you login as an admin, you should be able to SELECT the mailbox
and use normal IMAP commands. Alternatively, if you add "+DAV" to a
regular userid, this will also allow SELECTing of DAV collection
mailboxes.
When I do imtest -a mailadmin and then issue a002 select
#drive/folder, I get:
a002 NO Invalid mailbox type
It appears that just logging in as an admin won't do the trick.
When I do imtest -a mailadmin+DAV, I get (XX replaces the real auth
value):
C: A01 AUTHENTICATE PLAIN XXX
S: A01 NO authentication failure
Authentication failed. generic failure
I've also tried these combinations with the same result:
"u...@domain.tld+DAV" and "user+...@domain.tld". Am I doing it wrong?
Enable the imapmagicplus option in imapd.conf
Independently of this, is there a way to obtain the details about the
flags for each message in a folder directly from the db files? My idea
is to rsync the Cyrus store where the WebDAV is located to some other
folder (probably on another server), purge there the files marked as
deleted and backup the remaining files, all this without altering the
Cyrus store. Is it possible?
> If the append of the resource into the mailbox, or updating the DAV
db entry fails, the operation should be reverted, with partial saving
done. Which version of Cyrus are you using?
Currently it is 3.0.5, but I can upgrade if there were any related
changes in the later versions. What I was observing is that if a PC
(LibreOffice Calc on Ubuntu 16.04, the folder mounted with davfs2)
crashes in the middle of saving a file on the server, the result was a
damaged file: some 400 bytes instead of 3-4Mb of a real file.
I was thinking that maybe when the TCP stream hangs in the middle,
Cyrus would interpret it as an end of data and write a file, but I've
just tried to make some tests killing mount.davfs2 process and/or
blocking the stream with iptables in the middle of file transmission
and Cyrus responded correctly. For killing mount.davfs2 it showed in
the corresponding log file the bytestream followed by:
HTTP/1.1 400 Bad Request
Unable to read body data
And for blocking the stream with iptables it was showing the
bytestream ending where the transmission stopped, without the 400 Bad
Request, but in both cases the original file was not modified by the
partial upload. So it appears the problem is elsewhere.
Regards,
Anatoli
*From:* Ken Murchison
*Sent:* Thursday, November 15, 2018 14:09
*To:* Info-cyrus
*Subject:* Re: WebDAV folders internally have hundreds of copies of
the same few files
On 11/15/18 1:48 AM, Anatoli wrote:
Hi Ken,
Thanks a lot for the clarification, everything makes sense now. How
can I list the files marked for deletion and those that are not
marked? unexpunge can provide the list of files marked for deletion,
is there any better way to list them, directly reading the DB? How to
list those that are not marked?
If you login as an admin, you should be able to SELECT the mailbox and
use normal IMAP commands. Alternatively, if you add "+DAV" to a
regular userid, this will also allow SELECTing of DAV collection
mailboxes.
One more question, related: we got a client who's PC was crashing
exactly during the modify operation (some issue with the PC hardware
triggered by Excel save operation, probably a RAM spike touching some
bad blocks). As a result, the file in Cyrus was becoming damaged,
i.e. partially saved. Is it expected?
Shouldn't Cyrus update the db with the pointer to the new file (a new
message in the store) only if the operation completes successfully
(e.g. the WebDAV messages exchange completes and the connection is
closed at the right time or something similar)?
If the append of the resource into the mailbox, or updating the DAV db
entry fails, the operation should be reverted, with partial saving
done. Which version of Cyrus are you using?
*From:* Ken Murchison
*Sent:* Wednesday, November 14, 2018 10:54
*To:* Info-cyrus
*Subject:* Re: WebDAV folders internally have hundreds of copies of
the same few files
On 11/13/18 10:15 PM, Anatoli wrote:
Hi,
I'm not sure this is due to some configuration option, bug or
feature, but I'm observing some folders on Cyrus HTTP WebDAV server
having hundreds (995 at this
