[Dovecot] obox_fs and Dropbox, someone uses it?

[Alessio Cecchi]

I purchased the license for the Dovecot Object Storage for Dropbox to 
test this functionality on a personal domain.

Unfortunately I can not make it work, I create the token for my Dropbox 
account from here https://dropbox.dovecot.fi/ and setup in dovecot 
configuration.

When I try to login with an user I found these errors in log file:

============
Dec 27 10:52:16 mail dovecot: imap-login: Login: 
user=<dovecot1 at test.it>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, 
mpid=8844, secured, session=<xxCXDIHuTQB/AAAB>
Dec 27 10:52:16 mail dovecot: metacache-worker(8839): Error: 
fs-dropbox: GET 
1/metadata/sandbox/dovecot1 at test.it/idx/?file_limit=25000 failed: 401 
Unauthorized
Dec 27 10:52:16 archiviomail dovecot: metacache-worker(8839): Error: 
Failed to iterate dovecot1 at test.it/idx/: GET 
1/metadata/sandbox/dovecot1 at test.it/idx/?file_limit=25000 failed: 401 
Unauthorized
Dec 27 10:52:16 mail dovecot: imap(dovecot1 at test.it): Error: user 
dovecot1 at test.it: Initialization failed: Namespace '': obox: USER-REF: 
/var/run/dovecot/metacache returned failure
Dec 27 10:52:16 mail dovecot: imap(dovecot1 at test.it): Error: Invalid 
user settings. Refer to server log for more information.
Dec 27 10:52:16 mail dovecot: imap-login: Login: 
user=<dovecot1 at test.it>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, 
mpid=8846, secured, session=<NTSaDIHuTgB/AAAB>
=============


I do not think it's a problem of my configuration, if instead of 
Dropbox use AWS S3 works fine, seems to be a token problem (401 
Unauthorized).

The plugin configuration is this:

### Dropbox
plugin {
         obox_fs = fscache 
10G:/var/lib/dovecot/cache:dropbox:https://XXXX:YYYY@dropbox/
}

Anyone successfully used this setup?