OK, checking Global Permission, we have these three levels:

    /** Allowed to login and edit profile */
    public static final String LOGIN  = "login";

    /** Allowed to login and do weblogging */
    public static final String WEBLOG = "weblog";

    /** Allowed to login and do everything, including site-wide admin */
    public static final String ADMIN  = "admin";

We don't use "weblog" though, we save it as "editor" in the userrole table. We also don't use "login" for anything other than to make it the minimum required setting on pages that don't require an ADMIN setting. All newly registered users are given "editor" as a minimum, meaning we could raise minimum from "login" to "editor" and do away with the login role without any difference in application behavior.

On top of this, we allow the roles additional subroles per the roller.properties file:

# Role name to global permission action mappings
role.names=editor,admin
role.action.editor=login,comment,weblog
role.action.admin=login,comment,weblog,admin

"comment" is also never used in the application, further, in the above list we're inconsistently assigning admin to admin but weblog to editor. Since the permissions are all Russian doll (login < comment < weblog/editor < admin), it's sufficient to just store the highest role, as the lower ones are all implied, i.e., we don't need these properties.

My proposal is to:

1.) Replace the above LOGIN/WEBLOG/ADMIN strings with a two-value enumeration, EDITOR and ADMIN. Later, if we have user demand for LOGIN and COMMENT, and somebody actually coding in logic that uses those values, we can easily add in the enumerations for them. (I don't like LOGIN much, however, if we don't trust them not to blog they shouldn't be lurking around the UI.)

2.) The "userrole" database table will be dropped, replaced with a new varchar column ROLE in the Roller_User table. I'll update the migration script to copy the user's highest role into that column.

3.) The three properties "role.name, role.action.editor, and role.action.admin" will be removed.

4.) List<String> requiredGlobalPermissionActions() will return a single enumeration constant instead (EDITOR or ADMIN), stating the minimum accepted value.

5.) WeblogPermissions looks fine, except I'll just switch the string array of EDIT_DRAFT, ADMIN, POST, to an enumeration constant with the same values and have requiredWeblogPermissionActions() return an enumeration constant instead.

How does this sound? I have other things to work on so I'll wait 72 hours before proceeding to give time for others to evaluate this change.

Regards,
Glen


On 08/13/2014 08:33 AM, Glen Mazza wrote:
If the methods return just a single permission instead of a collection of permissions, at least for GlobalPermissionActions, that means we can move to "Russian doll" type role levels, where each permission level includes all the permission levels below it (de facto the way Roller runs now). If we can officially be on that, that means we can toss out the userrole table and just place a single column "rolename" (indicating the highest role a person has) in the roller_user table, a very sleek change. (I'm not talking about Roller_Permission, i.e., permissions a user has on each blog -- that table is still needed, but the userrole table indicating whether one's a global admin or not.)

Glen

On 08/13/2014 07:54 AM, Dave wrote:
I don't have a strong opinion, but this seems like change just for the sake
of change. I doubt that impacts performance in any significant way,
especially when compared to all the database calls that are made during JSP
or page template processing.

- Dave


On Tue, Aug 12, 2014 at 9:15 PM, Glen Mazza <glen.ma...@gmail.com> wrote:

Hi team, one or both of these methods are heavily called within the
application, indeed for almost every action run:

     public List<String> requiredWeblogPermissionActions() {
         return Collections.singletonList(WeblogPermission.xxxxx);
     }

     public List<String> requiredGlobalPermissionActions() {
         return Collections.singletonList(GlobalPermission.xxxxxx);
     }

I've checked every implementation of both methods within the application
-- about 20-25 in all -- every one returns just a single permission
requirement, not a list of items.

I think it would be good to optimize these methods by having them return
just a string or a fast and lightweight enumeration constant. The only
thing lost I can see would be the ability to require multiple permissions, but again within the app today and through 12-14 years of Roller it just
hasn't been needed.  WDYT?

Regards,
Glen




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