[jira] [Created] (SHIRO-636) Adding a substring syntax for LDAP user DN

["Hyangtack Lee (JIRA)" <ji...@apache.org>]

Hyangtack Lee created SHIRO-636:
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             Summary: Adding a substring syntax for LDAP user DN
                 Key: SHIRO-636
                 URL: https://issues.apache.org/jira/browse/SHIRO-636
             Project: Shiro
          Issue Type: Improvement
          Components: Authentication (log-in), Configuration
            Reporter: Hyangtack Lee
            Priority: Minor


Hello.

I would like to propose a new syntax of substring LDAP user DN.

For now, "DefaultLdapRealm" supports only "\{0\}" token to substitute user DN template with a user's principal.

In my case, I need to substitute user DN template with a part of user's principle. 
For example if I have a principal as a form of 'organization code + username', I need to make the user's DN as follows:
{noformat}
CN=OAalice, OU=OA, ...
{noformat}

So I would like to propose a new syntax like "\{0:beginIndex:endIndex\}" in order to get a part of a user's principle. The template would be: 
{noformat}
CN={0},OU={0:0:2},...
{noformat}
(The indexes are following Java's substring API's specifications.)

What do you think about my proposal? If you think it is acceptable, I would be able to make a fix.

Thanks.



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