Re: (ITS#7157) UTF-8 support for "mail" attribute - openldap-bugs

7 Feb 2012


      --On Tuesday, February 07, 2012 9:03 PM +0000 alfiej@opera.com wrote:
...
Full_Name: Alfie John
Version: 2.4.23
OS: Debian Squeeze
URL: ftp://ftp.openldap.org/incoming/
Submission from: (NULL) (220.245.36.226)
When searching for Chinese names in the "to:" field under Thunderbird, I
see asserted_value_validate_normalize() not returning LDAP_SUCCESS in
filter.c. This is because the "mail" attribute in core.schema is of type
"IA5 String" but the Chinese name falls outside the character set.
The work around I have is to modify the "mail" attributetype in the
core.schema from:
attributetype ( 0.9.2342.19200300.100.1.3
    NAME ( 'mail' 'rfc822Mailbox' )
    DESC 'RFC1274: RFC822 Mailbox'
    EQUALITY caseIgnoreIA5Match
    SUBSTR caseIgnoreIA5SubstringsMatch
    SYNTAX 1.3.6.1.4.1.1466.115.121.1.26{256} )
to:
attributetype ( 0.9.2342.19200300.100.1.3
    NAME ( 'mail' 'rfc822Mailbox' )
    DESC 'RFC1274: RFC822 Mailbox'
    EQUALITY caseIgnoreMatch
    SUBSTR caseIgnoreSubstringsMatch
    SYNTAX 1.3.6.1.4.1.1466.115.121.1.15{256} )
Dieter Kl?nter pointed out on the openldap-technical mailing list that
this breaks RFC-5322. However Charles T. Brooks suggests:
Non-english character sets are going to become part of
  hostnames and DNS.  That's inevitable.
Mail addresses are based on DNS hostnames.
Ergo, mail attributes will one day need to support all possible
  characters.
Given that, I think the above changes to core.schema seem worthwhile.
I would say then, that the proper place to bring this up would be with the 
IETF.
--Quanah
--
Quanah Gibson-Mount
Sr. Member of Technical Staff
Zimbra, Inc
A Division of VMware, Inc.
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