uppercase usernames

[Joerg Maier]

Hi Julien,

Thanks for the hint!

My system is (now) Ubuntu 12.04.2 LTS. I found normalizeuid in the 
docs, which I set to 0. Still with the same result.

I scanned the code a bit as well, I find such a patch in the Ubuntu 
distribution patches 
(cyrus-imapd-2.4.2-903-normalize-authorization-id.patch). If I 
understand the code, it is initialized with 0, and only if set to 1 if 
config says.

I think now, the best solution would be to install a debug version 
somewhere and see which of the 68 tolower calls in the code performs my 
unwanted tolower and why.

As I only have 20 mailboxes with UpperCase letters in them, and after 
testing I found that a combination of "rename user/CamelCase 
user/camelcase" plus "sam user/camelcase camelcase lrswipcda" plus some 
account changing in the database will fix my issue,
- without any manual configuration steps for the users
- still the rcpt to:CamelCase mails will get to the renamed account

Thanks for all your help. I guess the next person who runs into this 
and reads this thread needs to debug a bit or study the code investing 
more time.

Joerg

On 2013-03-11 13:19, Julien Coloos wrote:
> Hi,
>
> Is your system RedHat/CentOS/Fedora ?
> I think their version (since 2.3.x) have a patch that "normalize"
> (lowercase + strip leading and trailing whitespaces) authentication
> ids. From what I could see it appears it was added as a configuration
> option, but the code is not complete and so the default value
> (enabled) applies.
>
>
> Le 11/03/2013 08:49, Joerg Maier a écrit :
>> Hi Dan,
>>
>> Thanks for you suggestion!
>>
>> Unfortunately, testing the solution i have in mind, i renamed and
>> finally deleted my one CamelCase testaccount. And now, when I try to
>> create a mailbox with CamelCase with cyradm, the default acls are 
>> set to
>> a user with lowercase username, and I am not able to set additional 
>> acls
>> to a user with CamelCase with sam.
>>
>> I suppose that "username_tolower: 0" just does not does what I 
>> thiought
>> it did in the source installation.
>>
>> The solution I want to use for my users now is:
>> - renaming user to lowercase in userdatabase
>> - renamin cyrus account with cyradm rename to lowercase
>> - creating a virtual forward rule, so postfix delivers the mail sent 
>> to
>> CamelCase address -> camelcase (and keep lmtp_downcase_rcpt: 0 and
>> username_tolower: 0 until last CamelCase adress is converted.
>>
>> Thanks, Joerg
>>
>>
>> On 2013-03-11 0:29, Dan White wrote:
>>> On 03/10/13 23:28 +0100, Joerg Maier joerg.maier wrote:
>>>> Hi List,
>>>>
>>>> I am using cyrus since ~8 years for a mailserver with ~200
>>>> mailaccounts.
>>>>
>>>> After transferring a mailserver from cyrus 2.2 to 2.4, I have an
>>>> issue
>>>> with usernames containing uppercase letters. Up to now, i did 
>>>> tread
>>>> the
>>>> part before the @ as case sensitive, and i allowed users to create
>>>> mailboxes like TestCApital.....
>>>>
>>>> I have set:
>>>> lmtp_downcase_rcpt: 0
>>>> username_tolower: 0
>>>>
>>>> When I try:
>>>> testsaslauthd -u TestCApital.<domain> -p <password>
>>>> I get
>>>> 0: OK "Success."
>>>>
>>>> But when I try to logon via imap, i see in the logs:
>>>> ... saslauthd[24118]: do_auth         : auth failure:
>>>> [user=testcapital.<domain>] [service=imap] [realm=] [mech=pam]
>>>> [reason=PAM auth error]
>>>>
>>>> What is the best solution to work around this?
>>> Do you get the same result with imtest?
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