implicit policies

[SirMetathyst]

how can I create policies that are applied to all subjects automatically? I thought that casbin was designed to have each subject with its own roles and permission, so that when a user is created, new policies for that user are created to but digging deeper it seems you should only apply policies to specific users you want to have specific perms, like admins, mods etc. so then there must be a way to apply a policy for all subjects implicitly? How can I do this?

[SirMetathyst]

ok so I figured out how to do it without groups but I'm not sure how to achieve this:

p, user, resource1, read, allow
p, user, resource2, read, allow
p, user, resource3, read, allow

g, *, user

to allow user group to all subjects

[hsluoyz]

@SirMetathyst

[request_definition]
r = sub, obj, act

[policy_definition]
p = sub, obj, act

[role_definition]
g = _, _

[policy_effect]
e = some(where (p.eft == allow))

[matchers]
m = (g(r.sub, p.sub) || p.sub == "everyone") && r.obj == p.obj && r.act == p.act

p, everyone, resource1, read, allow
p, everyone, resource2, read, allow
p, everyone, resource3, read, allow

[SirMetathyst]

so if I want to apply polices for everyone I can't add those policies to a group and then apply that group to everyone that way?

[SirMetathyst]

I'd like to group multiple policies together and apply that to everyone. This way I don't have to remove policies one by one, I can instead remove one line.

[hsluoyz]

https://casbin.io/docs/rbac-with-pattern

[SirMetathyst]

@hsluoyz I think I found something that seems to work. Is there something I've missed?

[request_definition]
r = sub, obj, act

[policy_definition]
p = sub, obj, act

[role_definition]
g = _, _

[policy_effect]
e = some(where (p.eft == allow))

[matchers]
m = (g(r.sub, p.sub) || p.sub == "everyone" || g('everyone', p.sub)) && r.obj == p.obj && r.act == p.act

p, user, data1, read
p, user, data2, read

p, admin, data1, write

g, everyone, user
g, bob, admin

alice, data1, read
alice, data1, write


bob, data1, read
bob, data1, write