0003394: rely on external source for authentication
Description
i want to rely on the web server for proper authentication.
say, i have auth_ntlm or auth_pam turned on, and the username will be accessible in $_SERVER["XXX"] once the web server authenticates the user.
if i have my own web form based authentication, the username will be held in something like $_SESSION["XXX"].
And the user should be created in Mantis with a dummy password if it does not exist in Mantis already.
This would be something close to single-signon.
Additional Information
I figure all it takes are:
1.a new $g_login_method.
2.a variable in config_ini.php to hold the name of the variable that holds username.
i.e.
$g_username_var = "\$HTTP_SERVER_VARS['PHP_AUTH_USER']");
3.code to check if the variable ($HTTP_SERVER_VARS['PHP_AUTH_USER'] in most cases) is set, create account in Mantis if needed, then allow access.
4.some way to generate an email address based on the username, I would suggest a $g_user_domain so
email = "$username@$g_user_domain";
or a place for user to put their own transformation function.
