16.
Role Hierarchy
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11 Comments
Interesting find... roles defined in security.yml:
```
role_hierarchy:
ROLE_ADMIN: [ROLE_MANAGE_GENUS]
ROLE_ADMIN: [ACCESS_MANAGE_GENUS]
```
ROLE_MANAGE_GENUS will work with Annotations, but ACCESS_MANAGE_GENUS will not.
Hey Tony,
Hm, probably it will be vice versa, because you overwrite "ROLE_ADMIN: [ROLE_MANAGE_GENUS]" line with "ROLE_ADMIN: [ACCESS_MANAGE_GENUS]", but I can be wrong. Anyways, do you find this in our downloaded code? Because I can't find it in finish/ directory, we have only the "ROLE_ADMIN: [ROLE_MANAGE_GENUS, ROLE_ALLOWED_TO_SWITCH]" line there.
Cheers!
Hi,
If I understand correctly each ROLE ei: ROLE_ADMIN will have access to certain ROLE_MANAGE ei: ROLE_MANAGE_BAR so if this ei: ROLE_ADMIN as access to more than one ROLE_MANAGE ei: ROLE_MANAGE_FOO it would look like:
role_hierarchy:
ROLE_ADMIN: [ROLE_MANAGE_FOO][ROLE_MANAGE_BAR
?
Sorry all the questions are answered on the next tuto.
Thanks
Haha, no problem! I'm glad you found answer more quickly than I asked :)
Good work!
What I am struggling with is how do I manage access to a resource a user owns. Classic blog example: a user can create posts and this user is the only user that can edit it. So, I want add protection to the "editAction" (with route "/posts/{id}") controller method to block access if the currently authenticated user does not own the post with given id. Of course I can't just create a role like 'EDIT_POSTS' because it doesn't specify which posts.
A solution I thought of: return a role for each post the user owns, e.g.: ROLE_EDIT_POST_3, ROLE_EDIT_POST_8, ROLE_EDIT_POST_12 etc. Then in the annotation or if that's not possible in the method itself I could maybe refer to the {id} field to check whether the currently authenticated user has the right role. I'm not sure if I like this solution as getRoles() will probably return a huge array or roles and I think it will just be a mess...
Any thoughts?
I did some more research and I actually think I found my answer in the symfony docs: voters or ACL's. I think that's exactly what I need :)
Hey Johan!
Yep, you found the answer - and I'm not surprised you were confused - it's just not a topic that we talk about in this tutorial (I just casually mention voters). But don't go for ACL's - these are almost always overkill and very difficult to use. You only need ACL if you need some admin user to be able to - at random - select any object in your system (e.g. a blog) and any user in the system, and apply some permissions for that (e.g. the ability to edit). That's almost never the case, and isn't the case for you either. Usually, you already have the relationships in the database (e.g. I *own* this resource and have a relationship setup that shows that), and that's where voters are the perfect solution to write some business logic to enforce security by using the database relationship you already have.
We have 2 spots on voters:
A) https://knpuniversity.com/s... (up to date, but not as in-depth)
B) https://knpuniversity.com/s... (uses the old AbstractVoter class, which has changed slightly. But is more in-depth)
Cheers!
That's exactly what I concluded after reading those two chapters in the Symfony docs: with voters I can do exactly what I want to do. Awesome :)
Question; is there some kind of console command (like ./bin/console debug:router to display all routes) that shows all active security/role/user settings?
Especially with annotations (which are very cool) it's easy to lose track of things.
Hey Lampje,
Nope, Symfony doesn't has such feature out-of-the-box. Probably there's a bundle for that, but I don't now such, sorry. If you don't find any bundle, I think you could try to write it by yourself - Symfony allows you to create a custom console commands, but most likely you know it yourself.
P.S. But probably Symfony web debug toolbar is something that could help you with this issue.
Cheers!
"Houston: no signs of life"
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