How to edit wwv_flow_custom_auth_std.login

Question

Greetings!
i want to edit the login page created by defualt. reason is i wanted to fetch username and password from my created table e.d users_test table is created. fo that i saw in login page in page process login the code wirrtien under process is
wwv_flow_custom_auth_std.login(
P_UNAME => :P101_USERNAME,
P_PASSWORD => :P101_PASSWORD,
P_SESSION_ID => v('APP_SESSION'),
P_FLOW_PAGE => :APP_ID||':1'
so i want to edit wwv_flow_custom_auth_std.login. is that any way or there is some other way

Answer 1

You can write your package like this
create or replace package xxcustom_pkg as
function authenticate(p_username in varchar2, p_password in varchar2) 
return boolean;
function md5hash (p_input in varchar2) return varchar2;
end;
create or replace package body xxcustom_pkg as
-- wrapper function to compute the MD5 hash
function md5hash (p_input in varchar2) return varchar2 is
begin
return dbms_crypto.hash(utl_raw.cast_to_raw(p_input),2);
end md5hash;
function authenticate(p_username in varchar2, p_password in varchar2)
return boolean is
v_result integer := 0;
v_hash varchar2(32);
begin
v_hash := md5hash(p_username || p_password);
select 1
into v_result
from app_users
where upper(user_name) = upper(p_username)
and password_hash = v_hash;
return(v_result = 1);
exception
when no_data_found then
return false;
end authenticate;
end;You should change your app_users table where you need to store the hash value of the password
alter table app_users  add (password_hash raw(16));Assuming that you have user_name and password as the columns of table app_users
update app_users 
set password_hash = xxcustom_pkg.md5hash(upper(use_rname) || password);While creating or updating user you need to call
xxcustom_pkg.md5hashThen in the page login process put this
Declare
bresult boolean := FALSE;
begin
bresult :=xxcustom_pkg.authenticate(upper(:P101_USERNAME),:P101_PASSWROD);
IF bresult=TRUE THEN
wwv_flow_custom_auth_std.post_login
P_UNAME  => :P101_USERNAME,
P_PASSWORD => :P101_PASSWORD,
P_SESSION_ID => v('APP_SESSION'),
P_FLOW_PAGE => :APP_ID||':1'
else
owa_util.redirect_url('f?p=&APP_ID.:101:&SESSION.');
end if;
end;Hope this helps.
Thanks,
Mehabub