Dynamic LDAP settings

Question

APEX- 2.0.0.00.49
LDAP=OID
Database-9iRelease2
We are using LDAP as our authentication schema and it is all working fine.We have defined the LDAP settings like this :-
Page SentryFunction - null
Session Verify Function -null
Authentication Function - "-LDAP-"
LDAP Host - "myhostname"
LDAP PORT - 13060
LDAP DN STRING - cn=%LDAP_USER%,cn=HTMLDB_Users,dc=XX,dc=XX,dc=XX
The problem with this design is that the ldap settings need to be specified in the authentication page itself and if the client changes their LDAP details they won't be able to change these details as we provide the application "run only'.
To solve this problem we have created a table which would store the LDAP details like hostname,port,context string etc. I have created application items for all these settings and have computations for these items to trigger on login..but I guess I am stuck in a "catch 22" situation because I need to login for my computations to fire and on the other hand I need my computations to fire so that my ldap authentication can work.
Can someone suggest a solution here ?
tks in

Answer 1

Hmm, looks like those values don't allow substitution strings. Try this:
Create application items APP_LDAP_HOST, APP_LDAP_PORT
Use the pre-authentication process of the authentication scheme to set these values, e.g.,  begin
    :APP_LDAP_HOST := 'myldaphost.somewhere.com';
    :APP_LDAP_PORT := '389';
  end;Compile your own authentication function:create or replace function myauth(
  p_username in varchar2, p_password in varchar2)
return boolean
is
begin
  return htmldb_custom_auth.ldap_authenticate(
    p_username => p_username,
    p_password => p_password,
    p_ldap_host => v('APP_LDAP_HOST'),
    p_ldap_port => v('APP_LDAP_PORT'),
    p_ldap_string => 'cn=%LDAP_USER%,l=amer,dc=oracle,dc=com',
    p_ldap_edit_function => 'return htmldb_custom_auth.ldap_dnprep;', -- call your own function if our ldap_dnprep isn't what you need
    p_owner => 'VISHAL_SCHEMA');
end;
/Take all the LDAP attributes out of the authentication scheme.
In the authentication function field type:  return myauth;Scott